571
FNUS73 KDVN 201325
FWSDVN
SPOT FORECAST FOR HAWKEYE WMA-GRABIN...IOWA RIVER WILDLIFE UNIT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
825 AM CDT MON APR 20 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE QUAD CITIES AT (563) 386-3815.
DISCUSSION
A WIDESPREAD FROST/HARD FREEZE EARLY THIS MORNING WILL GIVE WAY TO
TEMPERATURES WARMING TO THE MIDDLE 50S OVER NORTHWEST ILLINOIS TO
THE MIDDLE 60S OVER FAR SOUTHEASTERN IOWA/WEST-CENTRAL
ILLINOIS/NORTHEAST MISSOURI. SOUTHERLY WINDS TODAY WILL BE AROUND 10
TO 20 MPH, WITH MINIMUM RH VALUES BETWEEN 30 TO 40 PERCENT.
MOSTLY DRY CONDITIONS WILL PREVAIL THROUGH WEDNESDAY NIGHT, WITH
PERHAPS A LOW TO MEDIUM CHANCE (10-40%) OF A SHOWER OR STORM TUESDAY
PM SOUTH OF INTERSTATE 80.
THE GRASSLAND FIRE DANGER INDEX -GFDI- DOES NOT ACCOUNT FOR
PRECIPITATION THAT OCCURS OR ANY SNOW ON THE GROUND. PLEASE
MAKE APPROPRIATE ADJUSTMENTS.
REST OF TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
BEGIN/END OF PCPN...NONE
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........32 PERCENT.
MAX APPARENT TEMP...60.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 9 MPH.
WIND SHIFT..........TURNING TO THE SOUTH BETWEEN 11 AM AND 1 PM.
WIND (20 FT)........SOUTH WINDS 9 TO 15 MPH.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (27700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (59200 KNOT-FT) IN THE
AFTERNOON.
GFDI................4.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 1 4 1 2 3 20 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0
TEMP............46 49 52 54 57 59 60 60
RH..............45 40 38 36 34 33 32 33
APARNT TMP (F)..41 45 52 54 57 59 60 60
20 FT WIND DIR..SE SE S S S S S S
20 FT WIND SPD..9 10 10 12 13 14 15 15
20 FT WIND GUST.14 14 16 17 18 20 20 21
EYE LVL WND DIR.SE SE S S S S S S
EYE LVL WND SPD.5 6 6 7 8 8 9 9
EYE LVL WND GST.8 8 10 10 11 12 12 13
MIX HGT (KFT)...2.5 3.1 3.3 3.8 3.8 3.8 3.9 3.7
TRANSP WIND DIR.S S S S S S S S
TRANSP WIND SPD.13 13 13 15 15 15 16 18
GFDI............2 2 3 3 4 5 5 5
SDSPL KT-FT/100028 34 36 49 49 49 54 59
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT).
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
BEGIN/END OF PCPN...NONE
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........80 PERCENT.
MAX APPARENT TEMP...60.
EYE LEVEL WINDS.....SOUTH WINDS 6 TO 8 MPH.
WIND SHIFT..........NONE
WIND (20 FT)........SOUTH WINDS 10 TO 14 MPH.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD (49200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (8900 KNOT-FT) LATE IN THE
NIGHT.
GFDI................4.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........23 3 18 36 64 29
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............60 56 51 51 51 51
RH..............36 45 61 66 77 77
APARNT TMP (F)..60 56 51 51 51 51
20 FT WIND......S 14 S 12 S 12 S 13 S 12 S 10
20 FT WIND GUST.20 17 18 22 23 22
EYE LEVEL WIND..S 8 S 7 S 7 S 8 S 7 S 6
EYE LVL WND GST.12 10 11 13 14 13
MIX HGT (FT)....3100 700 700 700 700 700
TRANSPORT WIND..S 18 S 15 S 17 S 20 S 20 SW 18
GFDI............5 3 2 3 2 2
SDSPL KT-FT/100049 9 10 12 11 12
TUESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
BEGIN/END OF PCPN...NONE
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........45 PERCENT.
MAX APPARENT TEMP...78.
EYE LEVEL WINDS.....SOUTHWEST WINDS 6 TO 8 MPH SHIFTING TO THE WEST
AROUND 7 MPH LATE IN THE AFTERNOON.
WIND SHIFT..........SOUTHWEST TURNING TO THE WEST BETWEEN 2 PM AND 4 PM.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 14 MPH SHIFTING TO THE
WEST AROUND 12 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 22 MPH SHIFTING TO THE WEST
AROUND 12 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (9900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (59900 KNOT-FT) IN THE
AFTERNOON.
GFDI................3.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........25 26 12 13 17 25
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 10
CHC OF THDR (%).0 0 0 0 0 0
TEMP............50 54 64 71 76 78
RH..............77 74 63 53 48 45
APARNT TMP (F)..46 54 64 71 76 78
20 FT WIND......SW 10 SW 12 SW 14 SW 14 W 12 W 12
20 FT WIND GUST.21 23 22 21 17 15
EYE LEVEL WIND..SW 6 SW 7 SW 8 SW 8 W 7 W 7
EYE LVL WND GST.13 14 13 13 10 9
MIX HGT (FT)....700 1400 2300 3500 4200 3800
TRANSPORT WIND..SW 16 SW 21 SW 22 SW 20 SW 16 W 14
GFDI............2 2 4 4 4 4
SDSPL KT-FT/100010 25 43 60 59 46
FORECASTER...COUSINS
REQUESTED BY...DAVID KUTZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2610860.0/DVN
.DELDT 04/20/26
.FORMATTERVERSION 2.0.0
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