000 
FNUS73 KFSD 141231
FWSFSD

SPOT FORECAST FOR ALMICH BURN...USFWS BIG STONE NWR
NATIONAL WEATHER SERVICE SIOUX FALLS SD
728 AM CDT THU APR 14 2005

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER 
SERVICE

DISCUSSION...DRY HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY AS
A COLD FRONT ASSOCIATED WITH A STRENGTHENING LOW PRESSURE
SYSTEM IN SOUTHERN SASKATCHEWAN APPROACHES FROM THE WEST. THIS WILL
RESULT IN INCREASING CLOUDS FROM WEST TO EAST AND STRONG SOUTHERLY
WINDS ACROSS THE AREA. WITH DEW POINTS IN THE LOW 30S AND ABOVE
NORMAL TEMPERATURES...RELATIVE HUMIDITIES WILL FALL TO 25 TO 35
PERCENT THIS AFTERNOON.  A COLD FRONT WILL MOVE INTO THE REGION ON
FRIDAY AND WILL STALL ACROSS NORTHWEST IOWA AND SOUTHWEST MINNESOTA
FRIDAY NIGHT AND SATURDAY. THIS FRONT WILL BRING A CHANCE OF SHOWERS
AND THUNDERSTORMS TO THE AREA MAINLY FRIDAY AFTERNOON INTO SATURDAY.

FOR PLANNED IGNITION TIME OF 1100 AM CDT 04/14/05


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

SKY/WX............... CLR         CLR          CLR          MOCLR
TEMP (F)............. 52          62           66           61
DEW PT (F)........... 32          34           34           35
RH (%)............... 48          35           30           38
20 FT WIND (MPH)..... S-14        SE-18        SE-18G25     S-17G25
MIXING HGT (FT, AGL). 1798        4166         5114         2942
TRANSPORT WIND (MPH). S-23        S-26         S-28         S-29
DISPERSION INDEX..... GOOD        EXCELLENT    EXCELLENT    EXCELLENT
HAINES INDEX......... 4 (LOW)     5 (MOD)      6 (HIGH)     6 (HIGH)



OUTLOOK FOR THURSDAY NIGHT
TIME(CDT)             11PM         2AM         5AM          8AM 



SKY/WX............... PTCLDY      PTCLDY       PTCLDY       PTCLDY
TEMP (F)............. 52          48           45           46
DEW PT (F)........... 36          37           38           40
RH (%)............... 54          65           76           78
20 FT WIND (MPH)..... S-17        S-14         SW-12        SW-9
HAINES INDEX......... 5 (MOD)     4 (LOW)      3 (VLO)      3 (VLO)


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


SKY.................. PTCLDY      MOCLDY       MOCLDY       PTCLDY
WX................... NO WX       SHRA/ TS     SHRA/ TS     TSRA
CHANCE OF PRECIP (%).             20           20           30
TEMP (F)............. 54          60           62           57
DEW PT (F)........... 41          42           42           42
RH (%)............... 61          52           49           58
20 FT WIND (MPH)..... W-4         NW-3         W-3          SW-3
MIXING HGT (FT, AGL). 2559        4208         5280         3027
TRANSPORT WIND (MPH). NW-13       NW-10        NW-6         NW-4
DISPERSION INDEX..... GOOD        GOOD         GOOD         FAIR
HAINES INDEX......... 4 (LOW)     5 (MOD)      6 (HIGH)     6 (HIGH)


$$