027  
FNUS74 KBMX 211749  
FWSBMX  
 
SPOT FORECAST FOR SHELBY EMA TEST ICS 400...SHELBY COUNTY EMA  
NATIONAL WEATHER SERVICE BIRMINGHAM AL  
1249 PM CDT THU JUN 21 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 CDT ON JUNE 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
 
RAIN CHANCES WILL INCREASE FOR TODAY THROUGH SATURDAY ESPECIALLY  
ACROSS THE NORTHERN HALF OF THE AREA WHERE SHOWERS AND STORMS ARE  
LIKELY. PATCHY FOG MAY DEVELOP IN THE OVERNIGHT AND EARLY MORNING  
HOURS WHERE RAINFALL OCCURS. THERE ARE NO FIRE WEATHER CONCERNS  
AT THIS TIME.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). NUMEROUS SHOWERS  
AND THUNDERSTORMS.  
CHANCE OF PCPN......60 PERCENT.  
MAX TEMPERATURE.....AROUND 89.  
MIN HUMIDITY........58 PERCENT.  
SURFACE WINDS.......SOUTHWEST WINDS AROUND 7 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 16 MPH.  
DISPERSION INDEX....36.  
DISPERSION..........MISSING.  
 
TIME (CDT) NOON 2 PM 4 PM  
SKY (%).........80 81 82  
WEATHER COV.....NUMRUS NUMRUS NUMRUS  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR  
TSTM COV........NUMRUS NUMRUS NUMRUS  
CHC OF PCPN (%).60 60 60  
TEMP............85 87 89  
RH..............67 61 58  
SURFACE WIND....SW 8 SW 8 SW 8  
SURFACE WND GST.12 12 12  
MIX HGT (FT)....3500 4000 3300  
TRANSPORT WIND..W 10 W 13 SW 14  
DISPERSION......M M M  
DISPERSION IDX..36 35 35  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). NUMEROUS SHOWERS  
AND THUNDERSTORMS EARLY IN THE EVENING, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE OF PCPN......60 PERCENT.  
MIN TEMPERATURE.....AROUND 72.  
MAX HUMIDITY........99 PERCENT.  
SURFACE WINDS.......SOUTHWEST WINDS 5 TO 7 MPH UNTIL EARLY MORNING  
BECOMING LIGHT, THEN BECOMING SOUTHWEST AROUND  
5 MPH EARLY IN THE MORNING.  
MIXING HEIGHT.......800-2700 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 18 MPH.  
DISPERSION INDEX....39 INCREASING TO 49 EARLY IN THE EVENING, THEN  
DECREASING TO 32 LATE IN THE EVENING DECREASING  
TO 21 LATE IN THE EVENING DECREASING TO 8.  
DISPERSION..........MISSING.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........82 82 82 81 81 80  
WEATHER COV.....NUMRUS SCTTRD SCTTRD SCTTRD SCTTRD SCTTRD  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........NUMRUS SCTTRD SCTTRD SCTTRD SCTTRD SCTTRD  
CHC OF PCPN (%).60 30 30 30 30 40  
TEMP............82 78 75 74 73 72  
RH..............73 83 90 90 93 99  
SURFACE WIND....SW 8 SW 8 SW 6 SW 6 SW 6 SW 5  
SURFACE WND GST.12 9 8 8 8 8  
MIX HGT (FT)....2700 2000 1500 1100 900 800  
TRANSPORT WIND..SW 17 SW 18 SW 15 SW 12 SW 10 SW 12  
DISPERSION......M M M M M M  
DISPERSION IDX..39 46 28 8 7 8  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SCATTERED  
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING,  
THEN SHOWERS AND THUNDERSTORMS LIKELY.  
CHANCE OF PCPN......60 PERCENT.  
MAX TEMPERATURE.....AROUND 87.  
MIN HUMIDITY........63 PERCENT.  
SURFACE WINDS.......SOUTHWEST WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......800-2100 FT AGL INCREASING TO 2900-4200 FT AGL  
LATE IN THE MORNING, THEN INCREASING TO  
5000-6000 FT AGL EARLY IN THE AFTERNOON  
DECREASING TO 1600-3500 FT AGL LATE IN THE  
AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 18 MPH INCREASING TO 15 TO 23  
MPH IN THE AFTERNOON.  
DISPERSION INDEX....8 INCREASING TO 52 LATE IN THE MORNING, THEN  
INCREASING TO 72 EARLY IN THE AFTERNOON  
DECREASING TO 48 LATE IN THE AFTERNOON  
DECREASING TO 29.  
DISPERSION..........MISSING.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........78 70 70 70 72 75  
WEATHER COV.....SCTTRD LIKELY LIKELY LIKELY LIKELY LIKELY  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........SCTTRD LIKELY LIKELY LIKELY LIKELY LIKELY  
CHC OF PCPN (%).40 60 60 60 60 60  
TEMP............73 75 79 84 87 87  
RH..............96 93 82 69 63 65  
SURFACE WIND....SW 6 SW 8 SW 8 SW 9 SW 10 SW 9  
SURFACE WND GST.8 9 9 13 15 13  
MIX HGT (FT)....800 1500 2900 5400 5000 2100  
TRANSPORT WIND..SW 9 SW 10 SW 15 SW 22 SW 22 SW 16  
DISPERSION......M M M M M M  
DISPERSION IDX..6 7 10 69 67 32  
 

 
FORECASTER...AARON  
REQUESTED BY...HUB HARVEY  
TYPE OF REQUEST...HAZMAT  
.TAG 1811766.0/BMX  
.DELDT 06/21/18  
 
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