000 
FNUS73 KFSD 191820
FWSFSD

SPOT FORECAST FOR WOLF LAKE WPA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
120 PM CDT THU MAY 19 2005

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

DISCUSSION...A NORTHWEST FLOW WILL DOMINATE THE AREA TODAY...
BECOMING A BIT BREEZY THROUGH THE AFTERNOON AS DRY AIR ALOFT MIXES
DOWN TO THE SURFACE. TONIGHT AND FRIDAY...A LARGE HIGH PRESSURE
SYSTEM WILL MOVE SLOWLY EASTWARD ACROSS THE NORTHERN GREAT LAKES.
THIS WILL GRADUALLY TURN THE WINDS AROUND FIRST TO THE EAST...THEN
TO THE SOUTHEAST AS FRIDAY PROGRESSES. WINDS WILL BE VERY LIGHT
TONIGHT...BUT ON FRIDAY THEY WILL BECOME BREEZY IN THE JAMES RIVER
VALLEY AND LOWER BRULE AREAS OF SOUTH DAKOTA DURING THE AFTERNOON.
MUCH LIGHTER SOUTHEAST WINDS WILL BE FOUND ALONG AND EAST OF I 29.
AN UPPER AIR DISTURBANCE AND ASSOCIATED SURFACE COLD FRONT WILL
MARCH EASTWARD ACROSS THIS AREA FRIDAY NIGHT AND SATURDAY...EXITING
SATURDAY NIGHT. THIS DISTURBANCE MAY SPREAD A FEW THUNDERSTORMS
AROUND THE AREA...BUT WIDESPREAD OR HEAVY RAINFALL IS NOT
ANTICIPATED. SUNDAY AND MONDAY WILL BE DRY AGAIN...WITH ANOTHER
STRONGER DISTURBANCE MOVING INTO THIS AREA IN THE TUESDAY THROUGH
WEDNESDAY TIMEFRAME.


FOR PLANNED IGNITION TIME OF 130 PM CDT 05/19/05


FORECAST FOR THURSDAY
TIME(CDT)             2PM         5PM         8PM          11PM

SKY/WX............... PTCLDY      PTCLDY       PTCLDY       PTCLDY
TEMP (F)............. 72          75           72           62
DEW PT (F)........... 54          53           52           50
RH (%)............... 51          46           49           65
20 FT WIND (MPH)..... NW-16       NW-16        N-12         NE-9
MIXING HGT (FT, AGL). 4854        5557         3536         0
TRANSPORT WIND (MPH). NW-29       NW-25        NW-20        N-17
DISPERSION INDEX..... EXCELLENT   EXCELLENT    EXCELLENT    POOR
HAINES INDEX......... 5 (MOD)     5 (MOD)      4 (LOW)      3 (VLO)



OUTLOOK FOR THE REST OF THURSDAY NIGHT
TIME(CDT)             2AM         5AM         8AM          11AM



SKY/WX............... PTCLDY      PTCLDY       MOCLR        MOCLR
TEMP (F)............. 56          53           56           69
DEW PT (F)........... 49          49           51           53
RH (%)............... 77          86           83           57
20 FT WIND (MPH)..... NE-6        NE-5         E-4          E-6
HAINES INDEX......... 4 (LOW)     4 (LOW)      4 (LOW)      5 (MOD)


OUTLOOK FOR FRIDAY AFTERNOON
TIME(CDT)             2PM         5PM         8PM          11PM


SKY/WX............... MOCLR       PTCLDY       PTCLDY       PTCLDY
TEMP (F)............. 77          79           74           65
DEW PT (F)........... 55          55           55           54
RH (%)............... 47          44           51           68
20 FT WIND (MPH)..... SE-5        SE-10        SE-13        SE-13
MIXING HGT (FT, AGL). 2890        3949         2513         0
TRANSPORT WIND (MPH). E-6         SE-9         SE-19        SE-27
DISPERSION INDEX..... FAIR        GOOD         GOOD         POOR
HAINES INDEX......... 5 (MOD)     5 (MOD)      5 (MOD)      5 (MOD)

$$
RSR

$$

REQUESTED BY...ERIC EARHART
REASON FOR REQUEST...UNDER THE INTERAGENCY AGREEMENT FOR METEOROLOGICAL SERVICES (USFS, BLM, NPS, USFWS, BIA).