648  
FNUS73 KOAX 191338  
FWSOAX  
 
SPOT FORECAST FOR OMAHA CRP...BIA-WINNEBAGO  
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE  
838 AM CDT FRI APR 19 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
SUNNY SKIES AND LIGHT NORTH TO NORTHWEST WINDS ARE FORECAST  
THROUGH THE AFTERNOON. MINIMUM HUMIDITIES WILL LIKELY DROP TO NEAR  
25 PERCENT. VERY GOOD SMOKE DISPERSAL IS EXPECTED THIS AFTERNOON  
AS MIXING HEIGHTS RISE TO WELL OVER 4000 FT.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 66.  
MIN HUMIDITY........28 PERCENT.  
SURFACE WINDS (MPH).NORTHWEST WINDS 6 TO 8 MPH.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......6900 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH.  
SMOKE DISPERSAL.....FAIR (20800 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (61500 KNOT-FT) IN THE  
AFTERNOON.  
GFDI................MODERATE.  
HAINES INDEX........4 TO 5 OR LOW TO MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........1 1 1 1 1  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............42 54 60 64 66  
RH..............76 50 38 31 28  
20 FT WIND......NW 6 NW 6 NW 6 NW 6 NW 5  
20 FT WIND GUST.  
SURFACE WIND....NW 8 NW 8 NW 8 NW 8 NW 6  
SURFACE WND GST.  
MIX HGT (FT)....2000 4100 6100 6900 6700  
TRANSPORT WIND..N 12 N 12 N 12 NW 10 NW 8  
GFDI............1 2 4 3 3  
HAINES INDEX....5 5 4 4 4  
SDSPL KT-FT/100021 42 60 59 48  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
MIN TEMPERATURE.....AROUND 40.  
MAX HUMIDITY........82 PERCENT.  
SURFACE WINDS (MPH).NORTHWEST WINDS AROUND 6 MPH EARLY IN THE  
EVENING BECOMING LIGHT, THEN BECOMING SOUTH 6  
TO 8 MPH LATE IN THE EVENING.  
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT, THEN BECOMING SOUTH 5  
TO 6 MPH LATE IN THE EVENING.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 7 MPH SHIFTING TO THE SOUTH 8 TO 14  
MPH IN THE LATE EVENING AND OVERNIGHT.  
SMOKE DISPERSAL.....GOOD (39500 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (0 KNOT-FT) LATE IN THE  
NIGHT.  
GFDI................LOW.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........1 2 1 2 4 6  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............66 61 52 47 45 43  
RH..............28 35 50 60 65 67  
20 FT WIND......NW 5 SW 4 S 4 S 6 S 6 S 5  
20 FT WIND GUST.  
SURFACE WIND....NW 6 SW 5 S 5 S 8 S 8 S 6  
SURFACE WND GST.  
MIX HGT (FT)....6200 3600 300 BLW100 300 300  
TRANSPORT WIND..NW 7 W 7 S 9 S 13 S 13 S 12  
GFDI............3 2 1 1 1 1  
HAINES INDEX....4 4 4 4 4 4  
SDSPL KT-FT/100040 20 2 1 3 2  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........29 PERCENT.  
SURFACE WINDS (MPH).SOUTH WINDS 6 TO 15 MPH.  
WIND (20 FT)........SOUTH WINDS 5 TO 12 MPH.  
MIXING HEIGHT.......4700 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 21 MPH SHIFTING TO THE SOUTHWEST 15  
TO 22 MPH IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR (1900 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (66800 KNOT-FT) IN THE  
AFTERNOON.  
GFDI................MODERATE INCREASING TO HIGH LATE IN THE  
AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........5 4 4 4 4 4  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............40 46 59 68 75 80  
RH..............82 65 49 39 33 29  
20 FT WIND......S 5 S 6 S 9 S 10 S 11 S 12  
20 FT WIND GUST. 12 14 16 18  
SURFACE WIND....S 6 S 8 S 11 S 13 S 14 S 15  
SURFACE WND GST. 15 18 20 22  
MIX HGT (FT)....300 100 300 1700 3700 4700  
TRANSPORT WIND..S 12 S 17 S 22 S 18 S 15 SW 16  
GFDI............1 1 4 8 11 15  
HAINES INDEX....4 4 4 4 4 4  
SDSPL KT-FT/10003 2 5 24 51 67  
 

 
FORECASTER...MILLER  
REQUESTED BY...DUWAYNE TRAVERSIE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1906594.0/OAX  
.DELDT 04/19/19  
.FORMATTERVERSION 1.0.26  
 
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