FNUS73 KDMX 281345
FWSDMX

SPOT FORECAST FOR UNION SLOUGH RX...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
845 AM CDT THU APR 28 2011

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER
SERVICE FOR EACH PRESCRIBED BURN.

.DISCUSSION...
THE LAST LOBE OF A LARGE LOW PRESSURE SYSTEM OVER THE GREAT LAKES IS
ROTATING THROUGH EASTERN IOWA TODAY.  THIS WILL BRING MOSTLY CLOUDY
SKIES TO THE NORTHEAST HALF OF THE STATE ALONG WITH ISOLATED TO
SCATTERED SHOWERS.  BREEZY CONDITION WILL EXIST OVER THE STATE TODAY
AS WELL.  HIGH PRESSURE WILL BUILD IN FOR TONIGHT AND FRIDAY DURING
THE DAY.

PLEASE REMEMBER TO PLACE YOUR SPOT REQUESTS FOR ANY BURNS THE NIGHT
BEFORE...EVEN IF IT IS JUST FOR PLANNING PURPOSES.  REQUESTS JUST HOURS
BEFORE A BURN SHOULD BE AVOIDED.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
                    MOSTLY SUNNY (35-45 PERCENT). SCATTERED RAIN
                    SHOWERS IN THE MORNING...THEN SLIGHT CHANCE OF
                    RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........45 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3600 FT AGL INCREASING TO 6000 FT AGL IN THE
                    AFTERNOON...THEN DECREASING TO 2300 FT AGL LATE
                    IN THE AFTERNOON.
MIXING WINDS........NORTHWEST 24 TO 29 MPH.
SMOKE DISPERSAL.....EXCELLENT (143500 KNOT-FT).
WIND (20 FT)........NORTHWEST WINDS 14 TO 21 MPH.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........76  68  53  46  41  30
WEATHER COV.....SCH SCH SCH SCH SCH SCH
WEATHER TYPE....RW  RW  RW  RW  RW  RW
TEMP............46  50  53  55  55  55
RH..............68  56  50  45  45  45
20 FT WIND DIR..NW  NW  NW  NW  NW  NW
20 FT WIND SPD..18  20  21  21  20  17
20 FT WIND GUST.25  25  25  25  25  25
MIX HGT (KFT)...3.6 4.4 5.2 6.0 4.1 2.3
MIXNG WIND DIR..NW  NW  NW  NW  NW  NW
MIXNG WIND SPD..28  28  28  28  28  28
HAINES INDEX....3   3   4   4   4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........85 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 13 MPH.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........30     23     13     6      9      14
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............53     49     45     41     37     39
RH..............48     54     62     73     85     82
20 FT WIND......NW 13  W 9    SW 6   S 5    S 5    S 6
20 FT WIND GUST.20     15     10

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........BREEZY. SOUTHEAST WINDS 9 TO 18 MPH INCREASING
                    TO 21 TO 26 MPH LATE IN THE MORNING.

TIME (CDT)      7 AM      10 AM     1 PM      4 PM
SKY (%).........18        33        49        60
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TEMP............40        53        64        66
RH..............79        57        43        43
20 FT WIND......S 9G10    SE 16G20  SE 23G30  SE 26G35

$$
FORECASTER...BOKSA
REQUESTED BY...DAN PAULSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20110428.UNION.01/DMX