Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 041213
FWSDMX

SPOT FORECAST FOR UMPRHEY...IOWA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
713 AM CDT WED MAY 4 2016

FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON MAY 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED...
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.

.DISCUSSION...

MOSTLY SUNNY AND DRY CONDITIONS WILL PREVAIL TODAY. THE WIND WILL
BE BREEZY FROM THE NORTH TO NORTHWEST WITH A FEW GUSTS NEAR 25 MPH
POSSIBLE. RELATIVE HUMIDITY VALUES BY THIS AFTERNOON WILL DROP TO
NEAR 30 PERCENT. HIGH PRESSURE WILL ARRIVE ON THURSDAY AND BRING
VARIABLE WINDS IN THE MORNING THEN BECOMING MORE STEADY FROM THE
WEST TO SOUTHWEST BY THE AFTERNOON.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........35 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 15 TO 20 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 8000 FT AGL.
MIXING WINDS........NORTH 13 TO 17 MPH INCREASING TO 23 TO 29 MPH
                    IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (5900-26400 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (143400-175900 KNOT-FT).
WIND (20 FT)........NORTH WINDS 15 TO 20 MPH.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........3   3   5   9   11  10  9   8   8
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............52  54  56  58  59  61  62  64  64
RH..............61  54  49  44  42  40  38  37  35
20 FT WIND DIR..N   N   N   N   NNW NNW NNW NNW NNW
20 FT WIND SPD..16  17  18  18  20  20  20  20  17
20 FT WIND GUST.25  25  25  25  30  30  30  30  25
EYE LVL WND DIR.N   N   N   N   NNW NNW NNW NNW NNW
EYE LVL WND SPD.11  12  13  13  14  14  14  14  12
EYE LVL WND GST.25  25  25  25  30  30  30  30  25
MIX HGT (KFT)...2.8 3.9 4.9 6.0 7.0 7.3 7.7 8.0 7.5
MIXNG WIND DIR..N   N   N   N   N   N   N   N   N
MIXNG WIND SPD..23  28  29  28  26  26  25  25  25
HAINES INDEX....4   4   4   4   4   4   5   5   5

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 41.
MAX HUMIDITY........76 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 6 TO 15 MPH DECREASING TO AROUND 5
                    MPH EARLY IN THE MORNING.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7100 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........NORTH 18 TO 26 MPH DECREASING TO 5 TO 12 MPH IN
                    THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (72100-159700 KNOT-FT)
                    DECREASING TO POOR TO FAIR (900-23500 KNOT-FT)
                    IN THE LATE EVENING AND OVERNIGHT.
WIND (20 FT)........NORTH WINDS 6 TO 15 MPH DECREASING TO AROUND 5
                    MPH EARLY IN THE MORNING.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........7      6      4      3      3      2
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............63     57     51     47     45     42
RH..............35     43     59     65     68     73
20 FT WIND......NNW 15 NNW 12 NNW 7  N 6    N 6    N 5
20 FT WIND GUST.20     15
EYE LEVEL WIND..NNW 11 NNW 9  NNW 5  N 4    N 4    N 4
EYE LVL WND GST.20     15
MIX HGT (FT)....7100   4500   300    300    300    300
MIXNG WIND......N 26   NNW 18 NW 6   NNW 5  NNW 6  N 5
HAINES INDEX....5      5      5      4      4      4

.THURSDAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 5 TO 7 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1700 FT AGL INCREASING TO 4800 FT AGL.
MIXING WINDS........NORTHWEST 3 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (800-33300 KNOT-FT).
WIND (20 FT)........WEST WINDS 5 TO 7 MPH.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........5         13        20        32
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TSTM COV........
TEMP............41        51        62        67
RH..............76        56        41        37
20 FT WIND......N 5       N 5       NNW 6     WNW 7
EYE LEVEL WIND..N 4G5     N 4G5     NNW 4G5   WNW 5
MIX HGT (FT)....300       1700      3600      4600
MIXNG WIND......N 3       N 5       NNW 7     NW 8
HAINES INDEX....5         5         5         5

$$
FORECASTER...DONAVON
REQUESTED BY...RODNEY ELLINGSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20160504.UMPRH.01/DMX


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