Suppression Forecast
Issued by NWS Grand Forks, ND

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000
FNUS73 KFGF 231239
FWSFGF

SPOT FORECAST FOR SPRAGUE LAKE...USFWS
NATIONAL WEATHER SERVICE GRAND FORKS ND
739 AM CDT MON MAY 23 2016

FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON MAY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

SOUTHWEST WINDS WILL SHIFT TO THE WEST AN HOUR OR TWO BEFORE IGNITION
TIME...STAYING AROUND 10 MPH. SKIES WILL BE CLEARING OUT AND
TEMPERATURES WILL RISE BACK INTO THE 70S BY IGNITION
TIME...REACHING THE LOWER 80S BY LATE AFTERNOON. RELATIVE HUMIDITY
VALUES WILL DROP DOWN INTO THE 25 TO 30 PERCENT RANGE. HEIGHTS
WILL MIX UP TO 10000 FT BY AFTERNOON...AND SMOKE DISPERSAL IS
EXPECTED TO BE GOOD.

WINDS WILL BECOME LIGHT AND VARIABLE TONIGHT...WITH MUCH HIGHER
RELATIVE HUMIDITIES. THE WINDS WILL EVENTUALLY STEADY TO OUT OF
THE SOUTH BY MID DAY ON TUESDAY. THERE WILL BE A SCATTERED CHANCE
FOR PRECIPITATION THROUGH TUESDAY AND INTO THE REST OF THE WEEK.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 11 MPH.
MIXING HEIGHT.......800-2600 FT AGL INCREASING TO 10300-10700 FT
                    AGL.
MIXING WINDS........WEST 9 TO 17 MPH DECREASING TO AROUND 7 MPH
                    EARLY.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........37  29  26  27  31  34  32  29
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............69  72  78  79  80  81  81  80
RH..............70  59  45  41  36  34  32  31
20 FT WIND DIR..W   W   W   W   W   W   W   W
20 FT WIND SPD..9   9   8   9   10  10  9   7
20 FT WIND GUST.15  15  15  15  15  15  15  10

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....52-57.
MAX HUMIDITY........81-86 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 6 MPH EARLY IN THE EVENING
                    BECOMING LIGHT AND VARIABLE...THEN BECOMING
                    SOUTH UP TO 5 MPH LATE BECOMING LIGHT AND
                    VARIABLE.
MIXING HEIGHT.......10200 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........SOUTH 3 TO 6 MPH.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........25     17     18     25     21     21
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............78     70     63     60     57     54
RH..............33     45     62     69     75     83
20 FT WIND......W 6    W 4    W 3    SW 3   S 4    S 5
20 FT WIND GUST.10     5      5      5      5

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS LATE.
MAX TEMPERATURE.....83-88.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 5
                    TO 10 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS LATE.
MIXING HEIGHT.......300 FT AGL INCREASING TO 2500-3600 FT AGL EARLY
                    IN THE MORNING...THEN INCREASING TO 6700 FT AGL
                    LATE IN THE MORNING INCREASING TO 9800 FT AGL
                    LATE IN THE MORNING INCREASING TO 11700-13200
                    FT AGL DECREASING TO 10200 FT AGL LATE.
MIXING WINDS........SOUTH 5 TO 12 MPH.

TIME (CDT)      7 AM      10 AM     1 PM      4 PM
SKY (%).........24        22        35        36
WEATHER COV.....                              S CHC
WEATHER TYPE....NONE      NONE      NONE      RNSHWR
TSTM COV........                              S CHC
TEMP............56        74        83        85
RH..............80        48        33        28
20 FT WIND......S 4G5     SE 7G10   S 8G15    SE 9G15

$$
FORECASTER...JR
REQUESTED BY...JASON WAGNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20160523.SPRAG.01/FGF


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