992  
FNUS73 KOAX 231200  
FWSOAX  
 
SPOT FORECAST FOR OMAHA CRP...BIA WINNEBAGO AGENCY  
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE  
700 AM CDT SUN APR 23 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON APRIL 23.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
BREEZY SOUTHWESTERLY WINDS TODAY, COMBINED WITH WELL ABOVE NORMAL  
TEMPERATURES AND LOW HUMIDITY, WILL CREATE VERY HIGH GRASSLAND  
FIRE DANGER ALONG AND NORTH OF INTERSTATE 80 TODAY. MINIMUM  
AFTERNOON HUMIDITY WILL DROP TO 20 TO 25 PERCENT THIS AFTERNOON.  
SIMILAR WARMTH AND WINDS CAN BE EXPECTED MONDAY, BUT LOW LEVEL  
MOISTURE WILL BE SLIGHTLY HIGHER.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........22 PERCENT.  
WIND (20 FT)........SOUTH WINDS 6 TO 15 MPH INCREASING TO 15 TO 16  
MPH WITH GUSTS TO AROUND 30 MPH EARLY IN THE  
AFTERNOON.  
MIXING HEIGHT.......600-1700 FT AGL INCREASING TO 4600-5900 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 24 MPH INCREASING TO SOUTH 26  
TO 35 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (8500-46700 KNOT-FT) INCREASING TO  
EXCELLENT (121900 KNOT-FT).  
GFDI (MAX)..........MODERATE INCREASING TO HIGH IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM  
SKY (%).........2 0 5 9 11 14  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............45 60 68 72 74 72  
RH..............70 47 32 26 22 26  
20 FT WIND......SW 6 SW 9 S 13 S 15 S 16 S 15  
20 FT WIND GUST.10 15 20 25 30 30  
MIX HGT (FT)....600 1700 3600 5300 5900 4600  
TRANSPORT WIND..SW 15 SW 20 SW 22 S 26 S 31 S 35  
GFDI............1 2 7 11 15 12  
HAINES INDEX....5 5 5 5 5 5  
SDSPL KT-FT/10009 28 69 122 161 136  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT).  
MIN TEMPERATURE.....AROUND 47.  
MAX HUMIDITY........71 PERCENT.  
WIND (20 FT)........SOUTH WINDS 11 TO 14 MPH WITH GUSTS TO AROUND  
25 MPH.  
MIXING HEIGHT.......2400-3600 FT AGL DECREASING TO 100-1200 FT AGL  
EARLY IN THE EVENING.  
TRANSPORT WINDS.....SOUTH 26 TO 35 MPH.  
SMOKE DISPERSAL.....EXCELLENT (72900 KNOT-FT) DECREASING TO POOR TO  
GOOD (1700-36000 KNOT-FT) EARLY IN THE EVENING.  
GFDI (MAX)..........MODERATE.  
HAINES INDEX........5 TO 6 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM  
SKY (%).........16 20 25 32 39 48  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............69 61 55 53 50 48  
RH..............30 41 53 57 63 68  
20 FT WIND......S 14 S 12 S 11 S 11 S 12 S 13  
20 FT WIND GUST.25 20 20 20 20 25  
MIX HGT (FT)....3600 1200 100 500 300 200  
TRANSPORT WIND..S 35 S 29 S 26 S 29 S 30 S 31  
GFDI............9 5 3 3 3 3  
HAINES INDEX....5 5 5 5 5 5  
SDSPL KT-FT/1000108 36 2 11 8 5  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF  
RAIN SHOWERS IN THE MORNING.  
MAX TEMPERATURE.....AROUND 72.  
MIN HUMIDITY........38 PERCENT.  
WIND (20 FT)........SOUTH WINDS 12 TO 18 MPH WITH GUSTS TO AROUND  
30 MPH.  
MIXING HEIGHT.......300-1600 FT AGL INCREASING TO 4900-5500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 28 TO 36 MPH DECREASING TO 21 TO 24  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (8400-47800 KNOT-FT) INCREASING TO  
EXCELLENT (83500 KNOT-FT) LATE IN THE MORNING,  
THEN INCREASING TO EXCELLENT (111400 KNOT-FT)  
IN THE AFTERNOON DECREASING TO EXCELLENT (90600  
KNOT-FT) LATE IN THE AFTERNOON.  
GFDI (MAX)..........HIGH.  
HAINES INDEX........2 TO 6 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........58 49 47 52 37 35  
WEATHER COV.....S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE  
TSTM COV........  
TEMP............47 52 59 67 71 72  
RH..............71 63 53 42 38 39  
20 FT WIND......S 14 S 17 S 18 S 18 S 17 S 13  
20 FT WIND GUST.25 30 30 30 30 25  
MIX HGT (FT)....300 1000 2700 4900 5500 5500  
TRANSPORT WIND..S 31 S 33 S 35 S 36 S 30 SW 24  
GFDI............4 6 9 11 11 8  
HAINES INDEX....6 5 3 2 3 3  
SDSPL KT-FT/10008 28 84 150 145 111  
 

 
FORECASTER...KERN  
REQUESTED BY...DUWAYNE TRAVERSIE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1707550.0/OAX  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab NE Page
The Nexlab IA Page Main Text Page