110  
FNUS74 KAMA 031530  
FWSAMA  
 
SPOT FORECAST FOR CANYON FIREWORKS EVENT...RANDALL COUNTY FIRE DEPARTMENT  
NATIONAL WEATHER SERVICE AMARILLO TX  
1030 AM CDT WED JUL 3 2019  
 
FORECAST IS BASED ON FORECAST START TIME OF 1100 CDT ON JULY 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (806) 335-1421, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
NEITHER ELEVATED OR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED  
THROUGH INDEPENDENCE DAY. MIN RH VALUES WILL RANGE BETWEEN 25 TO  
30 PERCENT FOR BOTH TODAY AND TOMORROW. BESIDES A CHANCE OF  
THUNDERSTORMS TODAY, PARTLY CLOUDY SKIES TODAY WILL BE FOLLOWED BY  
MOSTLY CLEAR SKIES TOMORROW. 20 FT WINDS WILL BE OUT OF THE SOUTH  
10-15 MPH TODAY AND TOMORROW WITH GUSTS APPROACHING 20 MPH  
TOMORROW AFTERNOON.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). ISOLATED SHOWERS  
AND THUNDERSTORMS LATE IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 91.  
MIN HUMIDITY........32 PERCENT.  
SURFACE WINDS.......SOUTH WINDS 10 TO 13 MPH.  
WIND (20 FT)........SOUTH WINDS 10 TO 13 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MIXING HEIGHT.......5000 FT AGL INCREASING TO 10000-11500 FT AGL.  
TRANSPORT WINDS.....SOUTH 15 TO 22 MPH.  
SMOKE DISPERSAL.....EXCELLENT (95000 KNOT-FT) INCREASING TO  
EXCELLENT (147000 KNOT-FT) LATE IN THE  
AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 11 AM 1 PM 3 PM 5 PM  
SKY COVER.......PCLDY MCLEAR PCLDY MCLDY  
WEATHER COV..... ISOLTD  
WEATHER TYPE....NONE NONE NONE RNSHWR  
TSTM COV........ ISOLTD  
CHC OF PCPN (%).0 10 10 20  
LAL.............1 1 1 1  
TEMP............82 89 91 91  
RH..............47 37 33 32  
20 FT WIND......SW 12 S 10 S 12 S 13  
20 FT WIND GUST.14 14 14 16  
SURFACE WIND....SW 12 S 11 S 12 S 13  
SURFACE WND GST.16 15 16 18  
MIX HGT (KFT)...5.0 10 11 11  
TRANSP WIND DIR.SW SW S S  
TRANSP WIND SPD.22 16 15 16  
HAINES INDEX....3 3 3 3  
VRATE KT-FT/100095 140 143 147  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING  
PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS  
AND THUNDERSTORMS EARLY IN THE EVENING, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS EARLY IN  
THE EVENING. ISOLATED SHOWERS AND THUNDERSTORMS  
LATE IN THE EVENING.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................NO TSTMS UNTIL 1900, THEN 9-15 STRIKES UNTIL  
2200, THEN 1-8 STRIKES UNTIL 0100, THEN NO  
TSTMS.  
MIN TEMPERATURE.....AROUND 66.  
MAX HUMIDITY........87 PERCENT.  
SURFACE WINDS.......SOUTH WINDS 7 TO 14 MPH.  
WIND (20 FT)........SOUTH WINDS 7 TO 14 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
EVENING.  
MIXING HEIGHT.......9500-10000 FT AGL DECREASING TO 0 FT AGL.  
TRANSPORT WINDS.....SOUTH 14 TO 18 MPH.  
SMOKE DISPERSAL.....EXCELLENT (150000 KNOT-FT) DECREASING TO POOR  
TO GOOD (0-45500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY  
WEATHER COV.....ISOLTD SCTTRD ISOLTD ISOLTD  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE  
TSTM COV........ISOLTD SCTTRD ISOLTD ISOLTD  
CHC OF PCPN (%).20 30 20 20 10 10  
LAL.............1 3 2 2 1 1  
TEMP............91 86 78 74 72 70  
RH..............32 39 54 62 68 76  
20 FT WIND......S 14 S 14 S 14 S 12 S 9 S 7  
20 FT WIND GUST.18 18 18 14 11 8  
SURFACE WIND....S 14 S 14 S 14 S 12 S 10 S 8  
SURFACE WND GST.20 20 20 16 12 9  
MIX HGT (KFT)...10 6.5 0.1 0.1 0.1 0.1  
TRANSP WIND DIR.S S S S S S  
TRANSP WIND SPD.17 17 14 14 15 15  
HAINES INDEX....3 3 3 3 3 3  
VRATE KT-FT/1000150 98 0 0 0 0  
   
INDEPENDENCE DAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 96.  
MIN HUMIDITY........29 PERCENT.  
SURFACE WINDS.......SOUTH WINDS 7 TO 14 MPH.  
WIND (20 FT)........SOUTH WINDS 7 TO 14 MPH.  
MIXING HEIGHT.......0-1500 FT AGL INCREASING TO 12000-13500 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 18 MPH.  
SMOKE DISPERSAL.....POOR TO GOOD (0-32000 KNOT-FT) INCREASING TO  
EXCELLENT (150000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......PCLDY MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).10 0 0 0 10 10  
LAL.............1 1 1 1 1 1  
TEMP............67 70 81 89 94 96  
RH..............84 78 58 44 34 29  
20 FT WIND......S 7 S 9 SW 13 S 13 S 14 S 14  
20 FT WIND GUST.8 11 16 16 18 19  
SURFACE WIND....S 8 S 10 SW 13 S 14 S 14 S 17  
SURFACE WND GST.9 12 18 18 20 21  
MIX HGT (KFT)...0.1 0.5 2.0 8.5 13 14  
TRANSP WIND DIR.S SW SW S S S  
TRANSP WIND SPD.12 14 18 16 14 14  
HAINES INDEX....3 3 3 3 3 3  
VRATE KT-FT/10000 6 32 119 150 162  
 

 
FORECASTER...MECCARIELLO  
REQUESTED BY...TROY DUCHENEAUX  
TYPE OF REQUEST...OTHER  
.TAG 1911720.0/AMA  
.DELDT 07/03/19  
 
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