FNUS73 KDLH 281138
FWSDLH

SPOT FORECAST FOR LANGLEY 1...MNSUF
NATIONAL WEATHER SERVICE DULUTH MN
638 AM CDT TUE MAY 28 2013

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...EXTENSIVE CLOUD COVER IS EXPECTED AROUND IGNITION
TIME WITH A GRADUAL TRANSITION TO PARTLY SUNNY IN THE AFTERNOON.
HAVE LOWERED RELATIVE HUMIDITY VALUES FROM PREVIOUS FORECAST AS
RELATIVELY DRY AIR CONTINUES TO HOLD IN PLACE ACROSS THE
ARROWHEAD. ALTHOUGH THE FORECAST MIXING LAYER DEPTH IS RELATIVELY
SHALLOW...LATEST VERTICAL ANALYSIS INDICATES ENOUGH DRIER AIR
ALOFT TO WARRANT SOME LOWERING OF SFC DEWPOINTS. PRECIPITATION
CHANCES REMAIN VERY LOW THROUGH AT LEAST MID AFTERNOON WEDNESDAY.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY IN THE MORNING...THEN PARTLY SUNNY.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........EAST SOUTHEAST WINDS 3 TO 7 MPH INCREASING TO 7 TO
                    10 MPH AND SHIFTING TO SOUTHEAST IN THE AFTERNOON.
                    GUSTS TO  15 MPH POSSIBLE BY MID AFTERNOON.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 3500 FT AGL LATE IN
                    THE MORNING...THEN INCREASING TO 4000 FT AGL
                    EARLY IN THE AFTERNOON DECREASING TO 3400 FT
                    AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
SMOKE DISPERSAL.....FAIR (14100) INCREASING TO GOOD (46200) LATE IN
                    THE MORNING...THEN INCREASING TO GOOD (51400)
                    EARLY IN THE AFTERNOON DECREASING TO GOOD
                    (34500) LATE IN THE AFTERNOON.

TIME (CDT)      10 AM  NOON   2 PM   4 PM   6 PM
TEMP............61     64     65     65     63
RH..............53     47     41     40     44
20 FT WIND DIR..ESE    ESE    SE     SE     SE
20 FT WIND SPD..7      9      10     10     7
20 FT WIND GUST.12     14     15     15     9

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....43-48.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 4 TO 5 MPH EARLY IN THE EVENING
                    BECOMING SOUTH 3 TO 4 MPH...THEN BECOMING
                    SOUTHWEST AROUND 3 MPH AFTER MIDNIGHT BECOMING
                    LIGHT.
MIXING HEIGHT.......1800 FT AGL DECREASING TO 450 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH BECOMING NORTHWEST -4 TO 5
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR (11000) DECREASING TO POOR (500).

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
TEMP............61     55     49     46     46     47
RH..............49     61     80     89     93     96
20 FT WIND DIR..SE     S      S      W      W      W
20 FT WIND SPD..5      4      3      2      1      1
20 FT WIND GUST.7      8      5      3      2      2

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 4 TO 6 MPH.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 3800 FT AGL LATE IN
                    THE MORNING...THEN INCREASING TO 4600 FT AGL
                    EARLY IN THE AFTERNOON DECREASING TO 4000 FT
                    AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR (5100) INCREASING TO GOOD (30900) LATE IN
                    THE MORNING...THEN INCREASING TO GOOD (52800)
                    EARLY IN THE AFTERNOON DECREASING TO GOOD
                    (50100) LATE IN THE AFTERNOON.

TIME (CDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
TEMP............52     64     71     73     74     75
RH..............83     56     47     46     46     46
20 FT WIND DIR..W      W      SW     S      S      SE
20 FT WIND SPD..1      2      5      6      6      6
20 FT WIND GUST.2      5      6      8      8      7

$$
FORECASTER...DECLAN
REQUESTED BY...TOM ROACH
TYPE OF REQUEST...PRESCRIBED
.TAG 20130528.LANGL.03/DLH