421
FNUS73 KDVN 221209
FWSDVN
SPOT FORECAST FOR CEDAR RIVER CROSSING...JOHNSON COUNTY CONSERVATION
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
709 AM CDT WED APR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE QUAD CITIES AT (563) 386-3815.
DISCUSSION
WARM CONDITIONS WILL BE SEEN TODAY, WITH TEMPERATURES RISING
INTO THE UPPER 70S/LOW 80S AREA-WIDE. WEAK SOUTHWEST WINDS UNDER
10MPH ARE EXPECTED MUCH OF THE DAY, WITH NO PRECIPITATION.
AFTERNOON MINIMUM RH VALUES SHOULD RANGE BETWEEN 40 TO 50%.
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.........MOSTLY SUNNY (25-35 PERCENT).
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
BEGIN/END OF PCPN...
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........44 PERCENT.
MAX APPARENT TEMP...80.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST UP TO 4 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE SOUTH UP
TO 6 MPH IN THE AFTERNOON.
WIND SHIFT..........NONE.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH LATE
IN THE MORNING, THEN SHIFTING TO THE SOUTH 7 TO
10 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4400 FT AGL.
TRANSPORT WINDS.....WEST 6 TO 12 MPH SHIFTING TO THE SOUTH 9 TO 15
MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (7600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (57300 KNOT-FT) IN THE
AFTERNOON.
GFDI................2.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........37 39 40 42 35 20 16 13 23 28
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............65 66 67 71 74 77 78 80 80 79
RH..............75 71 68 61 53 50 48 44 45 50
APARNT TMP (F)..65 66 67 71 74 77 78 80 80 79
20 FT WIND DIR..W W W SW SW S S S S S
20 FT WIND SPD..2 3 5 6 6 7 8 9 10 10
20 FT WIND GUST.7 7 8 9 10 12 13 14 15 15
EYE LVL WND DIR.W W W SW SW S S S S S
EYE LVL WND SPD.1 2 3 4 4 4 5 5 6 6
EYE LVL WND GST.4 4 5 5 6 7 8 8 9 9
MIX HGT (KFT)...0.8 1.2 1.4 2.0 2.6 3.2 3.7 4.1 4.3 4.4
TRANSP WIND DIR.W W W W SW S S S S S
TRANSP WIND SPD.12 12 8 6 7 9 9 10 13 15
GFDI............0 0 1 1 1 2 2 3 3 3
SDSPL KT-FT/10008 12 10 10 16 25 30 37 47 57
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...6 PERCENT.
BEGIN/END OF PCPN...
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........96 PERCENT.
MAX APPARENT TEMP...79.
EYE LEVEL WINDS.....SOUTH WINDS UP TO 5 MPH.
WIND SHIFT..........NONE.
WIND (20 FT)........SOUTH WINDS 6 TO 9 MPH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTH 14 TO 16 MPH.
SMOKE DISPERSAL.....GOOD (30600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (6900 KNOT-FT) LATE IN THE
NIGHT.
GFDI................2.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........37 20 16 13 10 16
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).10 0 0 0 0 0
CHC OF THDR (%).10 0 0 0 0 0
TEMP............79 72 67 64 61 59
RH..............50 64 73 78 87 93
APARNT TMP (F)..79 72 67 64 61 59
20 FT WIND......S 9 S 8 S 7 S 7 S 6 S 7
20 FT WIND GUST.15 14 14 13 13 14
EYE LEVEL WIND..S 5 S 5 S 4 S 4 S 4 S 4
EYE LVL WND GST.9 8 8 8 8 8
MIX HGT (FT)....2500 800 700 600 600 600
TRANSPORT WIND..S 14 S 14 S 16 S 15 S 15 S 14
GFDI............3 2 1 1 1 1
SDSPL KT-FT/100031 9 9 8 8 7
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
BEGIN/END OF PCPN...
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........49 PERCENT.
MAX APPARENT TEMP...79.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 10 MPH INCREASING TO 10 TO 11
MPH WITH GUSTS TO AROUND 17 MPH IN THE
AFTERNOON.
WIND SHIFT..........NONE.
WIND (20 FT)........SOUTH WINDS 9 TO 18 MPH WITH GUSTS TO AROUND 29
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......5300 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 24 MPH INCREASING TO 31 TO 35 MPH.
SMOKE DISPERSAL.....POOR (8200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (103500 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (104200
KNOT-FT) IN THE AFTERNOON.
GFDI................5.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........28 34 42 43 51 67
WEATHER COV..... S CHC S CHC
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR
TSTM COV........ S CHC
CHC OF PCPN (%).0 0 0 0 20 20
CHC OF THDR (%).0 0 0 10 10 20
TEMP............58 60 69 75 79 79
RH..............96 87 68 56 49 49
APARNT TMP (F)..58 60 69 75 79 79
20 FT WIND......S 8 S 10 S 14 S 17 S 18 S 17
20 FT WIND GUST.15 20 23 25 28 29
EYE LEVEL WIND..S 5 S 6 S 8 S 10 S 11 S 10
EYE LVL WND GST.9 12 14 15 17 17
MIX HGT (FT)....600 1400 2600 4200 5200 5000
TRANSPORT WIND..S 15 S 21 S 25 S 29 S 32 S 35
GFDI............1 2 4 6 8 8
SDSPL KT-FT/10008 26 57 104 147 150
FORECASTER...ERVIN
REQUESTED BY...KEVIN HALEMEYER
TYPE OF REQUEST...PRESCRIBED
.TAG 2611288.0/DVN
.DELDT 04/22/26
.FORMATTERVERSION 2.0.0
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