509  
FNUS51 KPBZ 130701  
FWFPBZ  
 
FIRE WEATHER PLANNING FORECAST  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
301 AM EDT TUE APR 13 2021  
   
DISCUSSION
 
 
AFTER MORNING FOG, DRY WEATHER IS EXPECTED TODAY AS WEAK HIGH  
PRESSURE BRIEFLY BUILDS IN. ISOLATED TO SCATTERED SHOWERS RETURN  
WEDNESDAY AS LOW PRESSURE SLIDES BY TO OUR SOUTH.  
 

 
 
PAZ021-132145-  
ALLEGHENY-  
INCLUDING THE CITY OF PITTSBURGH METRO AREA  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 68 (+11) 45 (0) 64  
RH % (24H TREND) 35 (-41) 75 (-22) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 7 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2330 1740  
MIXING HGT(FT-AGL/MSL)7660 5710  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 76600 68520  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 29 FAIR 6 VERY POOR 27 FAIR  
ADI LATE 56 GEN GOOD 2 VERY POOR 57 GEN GOOD  
MAX LVORI EARLY 9 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ020-132145-  
BEAVER-  
INCLUDING THE CITIES OF ALIQUIPPA, BEAVER FALLS, AMBRIDGE,  
AND MONACA  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+11) 44 (-1) 64  
RH % (24H TREND) 35 (-42) 71 (-27) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR W 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2290 2040  
MIXING HGT(FT-AGL/MSL)7510 6710  
TRANSPORT WND (MPH) W 12 W 14  
VENT RATE (KT-FT) 75100 80520  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 30 FAIR 6 VERY POOR 29 FAIR  
ADI LATE 57 GEN GOOD 2 VERY POOR 67 GOOD  
MAX LVORI EARLY 8 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ014-132145-  
BUTLER-  
INCLUDING THE CITY OF BUTLER  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 67 (+10) 42 (-1) 63  
RH % (24H TREND) 37 (-40) 76 (-22) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR W 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2280 1750  
MIXING HGT(FT-AGL/MSL)7490 5740  
TRANSPORT WND (MPH) W 13 W 15  
VENT RATE (KT-FT) 82390 74620  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 29 FAIR 7 POOR 29 FAIR  
ADI LATE 62 GOOD 2 VERY POOR 64 GOOD  
MAX LVORI EARLY 9 3 4  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ013-132145-  
LAWRENCE-  
INCLUDING THE CITIES OF NEW CASTLE AND ELLWOOD CITY  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+11) 43 (0) 63  
RH % (24H TREND) 34 (-41) 74 (-25) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR W 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2270 2090  
MIXING HGT(FT-AGL/MSL)7460 6870  
TRANSPORT WND (MPH) W 13 W 18  
VENT RATE (KT-FT) 82060 109920  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 29 FAIR 6 VERY POOR 40 FAIR  
ADI LATE 60 GEN GOOD 2 VERY POOR 85 GOOD  
MAX LVORI EARLY 8 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ007-132145-  
MERCER-  
INCLUDING THE CITIES OF SHARON, HERMITAGE, AND GROVE CITY  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 66 (+10) 42 (0) 61  
RH % (24H TREND) 35 (-40) 74 (-24) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR W 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2260 2220  
MIXING HGT(FT-AGL/MSL)7410 7270  
TRANSPORT WND (MPH) W 13 SW 18  
VENT RATE (KT-FT) 81510 116320  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 3 3 4  
ADI EARLY 34 FAIR 7 POOR 68 GOOD  
ADI LATE 60 GEN GOOD 1 VERY POOR 90 GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ008-132145-  
VENANGO-  
INCLUDING THE CITIES OF OIL CITY AND FRANKLIN  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 66 (+10) 41 (-1) 61  
RH % (24H TREND) 36 (-41) 74 (-24) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 7 LGT/VAR W 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2330 2070  
MIXING HGT(FT-AGL/MSL)7640 6790  
TRANSPORT WND (MPH) W 13 SW 17  
VENT RATE (KT-FT) 84040 101850  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 3 3 4  
ADI EARLY 22 FAIR 7 POOR 60 GEN GOOD  
ADI LATE 62 GOOD 1 VERY POOR 77 GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 2 4 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ009-132145-  
FOREST-  
INCLUDING THE CITY OF TIONESTA  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 65 (+10) 40 (-2) 60  
RH % (24H TREND) 37 (-37) 77 (-23) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2290 2110  
MIXING HGT(FT-AGL/MSL)7510 6930  
TRANSPORT WND (MPH) W 13 SW 16  
VENT RATE (KT-FT) 82610 97020  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 4  
ADI EARLY 19 GEN POOR 6 VERY POOR 55 GEN GOOD  
ADI LATE 63 GOOD 1 VERY POOR 75 GOOD  
MAX LVORI EARLY 9 3 4  
MAX LVORI LATE 3 4 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ016-132145-  
JEFFERSON PA-  
INCLUDING THE CITIES OF PUNXSUTAWNEY AND BROOKVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 65 (+9) 42 (-1) 61  
RH % (24H TREND) 39 (-35) 78 (-20) 39  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 7 LGT/VAR SW 8  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION 0  
PRECIP BEGIN 9 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2200 1790  
MIXING HGT(FT-AGL/MSL)7210 5890  
TRANSPORT WND (MPH) W 13 SW 13  
VENT RATE (KT-FT) 79310 64790  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 25 FAIR 6 VERY POOR 24 FAIR  
ADI LATE 61 GOOD 1 VERY POOR 57 GEN GOOD  
MAX LVORI EARLY 9 3 4  
MAX LVORI LATE 3 4 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ015-132145-  
CLARION-  
INCLUDING THE CITY OF CLARION  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 66 (+10) 41 (-1) 62  
RH % (24H TREND) 38 (-38) 80 (-17) 37  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2330 1710  
MIXING HGT(FT-AGL/MSL)7630 5630  
TRANSPORT WND (MPH) W 14 SW 13  
VENT RATE (KT-FT) 91560 61930  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 17 GEN POOR 7 POOR 33 FAIR  
ADI LATE 64 GOOD 1 VERY POOR 64 GOOD  
MAX LVORI EARLY 9 3 4  
MAX LVORI LATE 3 4 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ022-132145-  
ARMSTRONG-  
INCLUDING THE CITIES OF KITTANNING AND FORD CITY  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 67 (+10) 42 (-2) 63  
RH % (24H TREND) 39 (-36) 81 (-17) 39  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 7 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2290 1630  
MIXING HGT(FT-AGL/MSL)7510 5350  
TRANSPORT WND (MPH) W 13 SW 13  
VENT RATE (KT-FT) 82610 58850  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 17 GEN POOR 6 VERY POOR 25 FAIR  
ADI LATE 63 GOOD 2 VERY POOR 54 GEN GOOD  
MAX LVORI EARLY 9 3 5  
MAX LVORI LATE 3 4 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ023-132145-  
INDIANA-  
INCLUDING THE CITY OF INDIANA  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 67 (+10) 43 (-1) 62  
RH % (24H TREND) 40 (-30) 81 (-18) 41  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 7 LGT/VAR SW 8  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 7 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2200 1840  
MIXING HGT(FT-AGL/MSL)7230 6050  
TRANSPORT WND (MPH) W 13 SW 14  
VENT RATE (KT-FT) 79530 72600  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 24 FAIR 7 POOR 19 GEN POOR  
ADI LATE 62 GOOD 2 VERY POOR 58 GEN GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 3 4 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ074-132145-  
HIGHER ELEVATIONS OF WESTMORELAND-  
INCLUDING THE CITIES OF LIGONIER AND DONEGAL  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 65 (+10) 44 (0) 61  
RH % (24H TREND) 41 (-27) 77 (-22) 41  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 7 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.04  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 2 PM  
MIXING HGT(M-AGL/MSL) 2130 1810  
MIXING HGT(FT-AGL/MSL)7000 5950  
TRANSPORT WND (MPH) W 14 W 14  
VENT RATE (KT-FT) 84000 71400  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 27 FAIR 7 POOR 15 GEN POOR  
ADI LATE 66 GOOD 3 VERY POOR 64 GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 3 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ076-132145-  
HIGHER ELEVATIONS OF FAYETTE-  
INCLUDING THE CITIES OF CHAMPION AND OHIOPYLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 40  
TEMP (24H TREND) 64 (+10) 44 (0) 60  
RH % (24H TREND) 42 (-28) 77 (-20) 45  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.06  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END 2 PM  
MIXING HGT(M-AGL/MSL) 2080 1550  
MIXING HGT(FT-AGL/MSL)6810 5080  
TRANSPORT WND (MPH) W 14 SW 14  
VENT RATE (KT-FT) 81720 60960  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 34 FAIR 9 POOR 5 VERY POOR  
ADI LATE 66 GOOD 2 VERY POOR 61 GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 2 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ073-132145-  
WESTMORELAND-  
INCLUDING THE CITIES OF MURRYSVILLE, GREENSBURG, NEW KENSINGTON,  
LOWER BURRELL, LATROBE, AND MONESSEN  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 67 (+10) 44 (0) 63  
RH % (24H TREND) 39 (-34) 80 (-19) 40  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.02  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2320 1650  
MIXING HGT(FT-AGL/MSL)7620 5410  
TRANSPORT WND (MPH) W 13 SW 13  
VENT RATE (KT-FT) 83820 59510  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 19 GEN POOR 7 POOR 20 GEN POOR  
ADI LATE 62 GOOD 2 VERY POOR 58 GEN GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 3 4 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ075-132145-  
FAYETTE-  
INCLUDING THE CITY OF UNIONTOWN  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 40  
TEMP (24H TREND) 67 (+10) 45 (0) 63  
RH % (24H TREND) 38 (-28) 79 (-18) 41  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.05  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 2 PM  
MIXING HGT(M-AGL/MSL) 2140 1440  
MIXING HGT(FT-AGL/MSL)7030 4730  
TRANSPORT WND (MPH) W 13 SW 14  
VENT RATE (KT-FT) 77330 56760  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 27 FAIR 12 POOR 8 POOR  
ADI LATE 61 GOOD 2 VERY POOR 57 GEN GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 2 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ512-132145-  
EASTERN PRESTON-  
INCLUDING THE CITIES OF TERRA ALTA, ROWLESBURG, AND HAZELTON  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 64 (+11) 44 (-1) 58  
RH % (24H TREND) 39 (-33) 82 (-15) 49  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 7 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.08  
PRECIP DURATION 4  
PRECIP BEGIN 6 AM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 1980 1110  
MIXING HGT(FT-AGL/MSL)6490 3640  
TRANSPORT WND (MPH) W 14 W 14  
VENT RATE (KT-FT) 77880 43680  
DISPERSION 4 3  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 33 FAIR 15 GEN POOR 6 VERY POOR  
ADI LATE 64 GOOD 2 VERY POOR 47 GEN GOOD  
MAX LVORI EARLY 8 3 5  
MAX LVORI LATE 2 4 3  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ511-132145-  
PRESTON-  
INCLUDING THE CITIES OF KINGWOOD AND BRUCETON MILLS  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 65 (+9) 44 (-2) 60  
RH % (24H TREND) 38 (-29) 81 (-14) 47  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.07  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 2000 1150  
MIXING HGT(FT-AGL/MSL)6560 3780  
TRANSPORT WND (MPH) W 13 SW 14  
VENT RATE (KT-FT) 72160 45360  
DISPERSION 4 3  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 30 FAIR 14 GEN POOR 4 VERY POOR  
ADI LATE 59 GEN GOOD 2 VERY POOR 49 GEN GOOD  
MAX LVORI EARLY 8 3 5  
MAX LVORI LATE 2 4 3  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ510-132145-  
RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-  
INCLUDING THE CITY OF COOPERS ROCK  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 66 (+11) 45 (-1) 61  
RH % (24H TREND) 38 (-31) 80 (-15) 45  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.06  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 2040 1250  
MIXING HGT(FT-AGL/MSL)6680 4110  
TRANSPORT WND (MPH) W 13 SW 14  
VENT RATE (KT-FT) 73480 49320  
DISPERSION 4 3  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 29 FAIR 14 GEN POOR 4 VERY POOR  
ADI LATE 60 GEN GOOD 2 VERY POOR 50 GEN GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 2 3 3  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ513-132145-  
WESTERN TUCKER-  
INCLUDING THE CITIES OF PARSONS, HENDRICKS, AND SAINT GEORGE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 65 (+11) 43 (-2) 59  
RH % (24H TREND) 33 (-37) 79 (-17) 48  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) NW 7 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.09  
PRECIP DURATION 5  
PRECIP BEGIN 6 AM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 1920 910  
MIXING HGT(FT-AGL/MSL)6300 2990  
TRANSPORT WND (MPH) W 14 W 12  
VENT RATE (KT-FT) 75600 29900  
DISPERSION 4 3  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 30 FAIR 16 GEN POOR 5 VERY POOR  
ADI LATE 56 GEN GOOD 2 VERY POOR 27 FAIR  
MAX LVORI EARLY 7 3 4  
MAX LVORI LATE 1 4 3  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ514-132145-  
EASTERN TUCKER-  
INCLUDING THE CITIES OF DAVIS, THOMAS, AND CANAAN VALLEY  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 60  
TEMP (24H TREND) 61 (+11) 43 (+1) 55  
RH % (24H TREND) 45 (-36) 82 (-17) 63  
20FT WND-VAL/AM(MPH) NW 6 LGT/VAR  
20FT WND-RDG/PM(MPH) NW 9 W 6 W 7  
PRECIP AMOUNT 0.00 0.00 0.09  
PRECIP DURATION 5  
PRECIP BEGIN 6 AM  
PRECIP END CONTINUING  
MIXING HGT(M-AGL/MSL) 1860 920  
MIXING HGT(FT-AGL/MSL)6110 3010  
TRANSPORT WND (MPH) W 15 W 12  
VENT RATE (KT-FT) 79430 30100  
DISPERSION 4 3  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 42 GEN GOOD 16 GEN POOR 5 VERY POOR  
ADI LATE 49 GEN GOOD 2 VERY POOR 26 FAIR  
MAX LVORI EARLY 7 3 5  
MAX LVORI LATE 2 4 4  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ509-132145-  
MONONGALIA-  
INCLUDING THE CITY OF MORGANTOWN  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 68 (+10) 45 (-2) 63  
RH % (24H TREND) 36 (-31) 82 (-14) 41  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.05  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END 2 PM  
MIXING HGT(M-AGL/MSL) 2080 1310  
MIXING HGT(FT-AGL/MSL)6810 4310  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 68100 51720  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 25 FAIR 13 GEN POOR 6 VERY POOR  
ADI LATE 53 GEN GOOD 2 VERY POOR 51 GEN GOOD  
MAX LVORI EARLY 7 3 5  
MAX LVORI LATE 1 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ031-132145-  
GREENE-  
INCLUDING THE CITY OF WAYNESBURG  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 40  
TEMP (24H TREND) 68 (+10) 44 (-1) 63  
RH % (24H TREND) 36 (-34) 80 (-19) 40  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.04  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2090 1470  
MIXING HGT(FT-AGL/MSL)6870 4830  
TRANSPORT WND (MPH) W 12 SW 13  
VENT RATE (KT-FT) 68700 53130  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 27 FAIR 6 VERY POOR 13 GEN POOR  
ADI LATE 53 GEN GOOD 2 VERY POOR 45 GEN GOOD  
MAX LVORI EARLY 8 3 4  
MAX LVORI LATE 1 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
PAZ029-132145-  
WASHINGTON-  
INCLUDING THE CITIES OF WASHINGTON AND CANONSBURG  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 68 (+11) 44 (0) 64  
RH % (24H TREND) 35 (-40) 75 (-21) 36  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 8  
PRECIP AMOUNT 0.00 0.00 0.02  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2110 2010  
MIXING HGT(FT-AGL/MSL)6930 6600  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 69300 79200  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 26 FAIR 7 POOR 22 FAIR  
ADI LATE 57 GEN GOOD 3 VERY POOR 53 GEN GOOD  
MAX LVORI EARLY 8 3 3  
MAX LVORI LATE 1 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ021-132145-  
MARION-  
INCLUDING THE CITY OF FAIRMONT  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR MCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 50  
TEMP (24H TREND) 68 (+10) 45 (-2) 63  
RH % (24H TREND) 35 (-33) 83 (-13) 42  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.05  
PRECIP DURATION 3  
PRECIP BEGIN 6 AM  
PRECIP END 2 PM  
MIXING HGT(M-AGL/MSL) 2050 1380  
MIXING HGT(FT-AGL/MSL)6720 4540  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 67200 54480  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 22 FAIR 13 GEN POOR 6 VERY POOR  
ADI LATE 52 GEN GOOD 2 VERY POOR 52 GEN GOOD  
MAX LVORI EARLY 7 3 5  
MAX LVORI LATE 2 4 3  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ012-132145-  
WETZEL-  
INCLUDING THE CITY OF NEW MARTINSVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE NONE SHOWERS SHOWERS  
CHANCE PRECIP (%) 0 20 50  
TEMP (24H TREND) 68 (+10) 45 (-1) 63  
RH % (24H TREND) 35 (-35) 82 (-15) 39  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.03  
PRECIP DURATION 0 3  
PRECIP BEGIN 4 AM CONTINUING  
PRECIP END CONTINUING 1 PM  
MIXING HGT(M-AGL/MSL) 1930 1700  
MIXING HGT(FT-AGL/MSL)6340 5570  
TRANSPORT WND (MPH) W 12 SW 12  
VENT RATE (KT-FT) 63400 55700  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 22 FAIR 14 GEN POOR 11 POOR  
ADI LATE 53 GEN GOOD 1 VERY POOR 53 GEN GOOD  
MAX LVORI EARLY 6 3 5  
MAX LVORI LATE 2 4 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ004-132145-  
MARSHALL-  
INCLUDING THE CITY OF MOUNDSVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 40  
TEMP (24H TREND) 69 (+11) 45 (-1) 64  
RH % (24H TREND) 35 (-37) 78 (-16) 37  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 6 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.02  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2000 2050  
MIXING HGT(FT-AGL/MSL)6560 6720  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 65600 80640  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 22 FAIR 7 POOR 18 GEN POOR  
ADI LATE 52 GEN GOOD 2 VERY POOR 61 GOOD  
MAX LVORI EARLY 6 3 4  
MAX LVORI LATE 2 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ003-132145-  
OHIO-  
INCLUDING THE CITY OF WHEELING  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 69 (+12) 45 (0) 64  
RH % (24H TREND) 34 (-42) 73 (-22) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 7  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 2040 2070  
MIXING HGT(FT-AGL/MSL)6690 6800  
TRANSPORT WND (MPH) W 12 SW 14  
VENT RATE (KT-FT) 66900 81600  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 21 FAIR 7 POOR 22 FAIR  
ADI LATE 55 GEN GOOD 2 VERY POOR 69 GOOD  
MAX LVORI EARLY 7 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ002-132145-  
BROOKE-  
INCLUDING THE CITIES OF FOLLANSBEE AND WELLSBURG  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 69 (+12) 45 (0) 64  
RH % (24H TREND) 34 (-44) 71 (-25) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 6 AM  
PRECIP END 12 PM  
MIXING HGT(M-AGL/MSL) 2090 2100  
MIXING HGT(FT-AGL/MSL)6840 6890  
TRANSPORT WND (MPH) W 12 W 14  
VENT RATE (KT-FT) 68400 82680  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 21 FAIR 6 VERY POOR 28 FAIR  
ADI LATE 58 GEN GOOD 2 VERY POOR 72 GOOD  
MAX LVORI EARLY 7 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
WVZ001-132145-  
HANCOCK-  
INCLUDING THE CITY OF WEIRTON  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+10) 45 (0) 64  
RH % (24H TREND) 35 (-46) 70 (-29) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2160 2160  
MIXING HGT(FT-AGL/MSL)7090 7080  
TRANSPORT WND (MPH) W 12 W 14  
VENT RATE (KT-FT) 70900 84960  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 26 FAIR 5 VERY POOR 30 FAIR  
ADI LATE 58 GEN GOOD 2 VERY POOR 73 GOOD  
MAX LVORI EARLY 6 2 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ041-132145-  
COLUMBIANA-  
INCLUDING THE CITIES OF EAST LIVERPOOL, SALEM, AND COLUMBIANA  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+12) 44 (-1) 63  
RH % (24H TREND) 35 (-44) 73 (-26) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR W 5  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2170 2250  
MIXING HGT(FT-AGL/MSL)7100 7390  
TRANSPORT WND (MPH) W 13 W 18  
VENT RATE (KT-FT) 78100 118240  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 24 FAIR 5 VERY POOR 36 FAIR  
ADI LATE 58 GEN GOOD 2 VERY POOR 95 GOOD  
MAX LVORI EARLY 7 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ050-132145-  
JEFFERSON OH-  
INCLUDING THE CITY OF STEUBENVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 69 (+12) 44 (-1) 64  
RH % (24H TREND) 34 (-43) 71 (-27) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 6 AM  
PRECIP END 11 AM  
MIXING HGT(M-AGL/MSL) 2100 2230  
MIXING HGT(FT-AGL/MSL)6890 7310  
TRANSPORT WND (MPH) W 12 W 16  
VENT RATE (KT-FT) 68900 102340  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 23 FAIR 5 VERY POOR 25 FAIR  
ADI LATE 58 GEN GOOD 2 VERY POOR 82 GOOD  
MAX LVORI EARLY 7 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ040-132145-  
CARROLL-  
INCLUDING THE CITIES OF CARROLLTON AND MALVERN  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+13) 44 (-1) 63  
RH % (24H TREND) 35 (-45) 73 (-27) 34  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR W 5  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2080 2300  
MIXING HGT(FT-AGL/MSL)6830 7560  
TRANSPORT WND (MPH) W 12 W 20  
VENT RATE (KT-FT) 68300 128520  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 25 FAIR 4 VERY POOR 33 FAIR  
ADI LATE 54 GEN GOOD 2 VERY POOR 92 GOOD  
MAX LVORI EARLY 8 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ049-132145-  
HARRISON-  
INCLUDING THE CITY OF CADIZ  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 69 (+12) 44 (-1) 64  
RH % (24H TREND) 33 (-43) 73 (-26) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2080 2310  
MIXING HGT(FT-AGL/MSL)6810 7590  
TRANSPORT WND (MPH) W 13 W 17  
VENT RATE (KT-FT) 74910 113850  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 25 FAIR 5 VERY POOR 32 FAIR  
ADI LATE 57 GEN GOOD 2 VERY POOR 85 GOOD  
MAX LVORI EARLY 7 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ059-132145-  
BELMONT-  
INCLUDING THE CITIES OF MARTINS FERRY AND ST. CLAIRSVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 69 (+11) 44 (-1) 64  
RH % (24H TREND) 33 (-35) 73 (-23) 34  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 6 AM  
PRECIP END 12 PM  
MIXING HGT(M-AGL/MSL) 1990 2150  
MIXING HGT(FT-AGL/MSL)6520 7050  
TRANSPORT WND (MPH) W 13 W 16  
VENT RATE (KT-FT) 71720 98700  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 20 GEN POOR 5 VERY POOR 25 FAIR  
ADI LATE 56 GEN GOOD 2 VERY POOR 79 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ069-132145-  
MONROE-  
INCLUDING THE CITY OF WOODSFIELD  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 40  
TEMP (24H TREND) 69 (+10) 45 (0) 64  
RH % (24H TREND) 34 (-27) 76 (-21) 36  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 2  
PRECIP BEGIN 6 AM  
PRECIP END 1 PM  
MIXING HGT(M-AGL/MSL) 1860 2000  
MIXING HGT(FT-AGL/MSL)6090 6580  
TRANSPORT WND (MPH) W 12 SW 13  
VENT RATE (KT-FT) 60900 72380  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 19 GEN POOR 6 VERY POOR 17 GEN POOR  
ADI LATE 56 GEN GOOD 2 VERY POOR 62 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 2 3 2  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ068-132145-  
NOBLE-  
INCLUDING THE CITY OF CALDWELL  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 30  
TEMP (24H TREND) 69 (+10) 45 (0) 64  
RH % (24H TREND) 34 (-30) 74 (-20) 35  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.01  
PRECIP DURATION 1  
PRECIP BEGIN 6 AM  
PRECIP END 12 PM  
MIXING HGT(M-AGL/MSL) 1850 2170  
MIXING HGT(FT-AGL/MSL)6060 7120  
TRANSPORT WND (MPH) W 12 W 16  
VENT RATE (KT-FT) 60600 99680  
DISPERSION 4 4  
LAL 1 1 1  
HAINES INDEX 3 3 3  
ADI EARLY 14 GEN POOR 5 VERY POOR 24 FAIR  
ADI LATE 56 GEN GOOD 2 VERY POOR 75 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ058-132145-  
GUERNSEY-  
INCLUDING THE CITY OF CAMBRIDGE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE SHOWERS  
CHANCE PRECIP (%) 0 0 20  
TEMP (24H TREND) 69 (+11) 45 (0) 64  
RH % (24H TREND) 33 (-39) 72 (-25) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION 0  
PRECIP BEGIN 6 AM  
PRECIP END 10 AM  
MIXING HGT(M-AGL/MSL) 1850 2310  
MIXING HGT(FT-AGL/MSL)6060 7580  
TRANSPORT WND (MPH) W 12 W 17  
VENT RATE (KT-FT) 60600 113700  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 20 GEN POOR 5 VERY POOR 31 FAIR  
ADI LATE 57 GEN GOOD 2 VERY POOR 85 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ039-132145-  
TUSCARAWAS-  
INCLUDING THE CITIES OF NEW PHILADELPHIA AND DOVER  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+11) 44 (0) 63  
RH % (24H TREND) 34 (-44) 72 (-25) 33  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR W 5  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 2000 2370  
MIXING HGT(FT-AGL/MSL)6570 7780  
TRANSPORT WND (MPH) W 12 W 18  
VENT RATE (KT-FT) 65700 124480  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 22 FAIR 5 VERY POOR 36 FAIR  
ADI LATE 55 GEN GOOD 2 VERY POOR 93 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 1 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ048-132145-  
COSHOCTON-  
INCLUDING THE CITY OF COSHOCTON  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+10) 44 (0) 63  
RH % (24H TREND) 34 (-39) 70 (-24) 34  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) LGT/VAR LGT/VAR W 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1850 2360  
MIXING HGT(FT-AGL/MSL)6070 7750  
TRANSPORT WND (MPH) W 12 W 18  
VENT RATE (KT-FT) 60700 124000  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 19 GEN POOR 5 VERY POOR 40 FAIR  
ADI LATE 53 GEN GOOD 2 VERY POOR 93 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
 
OHZ057-132145-  
MUSKINGUM-  
INCLUDING THE CITY OF ZANESVILLE  
301 AM EDT TUE APR 13 2021  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 0 0 0  
TEMP (24H TREND) 68 (+9) 45 (+1) 64  
RH % (24H TREND) 34 (-34) 73 (-23) 34  
20FT WND-VAL/AM(MPH) LGT/VAR LGT/VAR  
20FT WND-RDG/PM(MPH) W 5 LGT/VAR W 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT(M-AGL/MSL) 1780 2330  
MIXING HGT(FT-AGL/MSL)5830 7650  
TRANSPORT WND (MPH) W 12 W 18  
VENT RATE (KT-FT) 58300 122400  
DISPERSION 4 5  
LAL 1 1 1  
HAINES INDEX 4 3 3  
ADI EARLY 13 GEN POOR 6 VERY POOR 28 FAIR  
ADI LATE 54 GEN GOOD 2 VERY POOR 87 GOOD  
MAX LVORI EARLY 6 3 3  
MAX LVORI LATE 2 3 1  
 
REMARKS: ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.  
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS AROUND 40.  
HIGHS IN THE UPPER 40S. WEST WINDS UP TO 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SCATTERED RAIN SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 5 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND  
60. NORTHWEST WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS AROUND 40. HIGHS  
IN THE LOWER 60S. SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE LOWER  
40S. HIGHS IN THE LOWER 60S. WEST WINDS 5 TO 10 MPH.  
 

 
 
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