AWUS85 KRIW 051137
RWSWY 
WYZALL-060000
REGIONAL WEATHER SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
436 AM MST FRI DEC 05 2008
...VERY COLD WITH HIGH CLOUDS MOVING IN AND WINDY CONDITIONS 
DEVELOPING...
FOR SOUTHEAST WYOMING...
AREAS OF FOG AND ICE CRYSTALS AFFECTED SOUTHERN LARAMIE COUNTY 
BETWEEN 9 PM AND 2 AM.  OTHERWISE...HIGH LEVEL CLOUDS INCREASED OVER 
SOUTHEAST WYOMING AFTER MIDNIGHT.  
WINDS ALSO INCREASED OVER AREAS ALONG AND WEST OF THE LARAMIE
RANGE AFTER MIDNIGHT.  SINCE THAT TIME...GUSTS TO BETWEEN 40 AND
50 MPH WERE COMMON OVER THE LARAMIE RANGE...BETWEEN CHUGWATER AND
WHEATLAND AND OVER AND NEAR THE SNOWY RANGE.  THE STRONG WINDS 
PRODUCED BLOWING SNOW OVER THOSE AREAS.  IN FACT...NEAR ZERO
VISIBILITIES OCCURRED AT TIMES ON INTERSTATE 80 AROUND ELK
MOUNTAIN AND ARLINGTON.  
HIGH TEMPERATURES ACROSS SOUTHEAST WYOMING ON THURSDAY WERE IN THE
TEENS.  THE TEMPERATURES DROPPED QUICKLY AFTER SUNSET WITH MANY 
LOCATIONS GOING BELOW ZERO.  TEMPERATURES WARMED ONCE THE WINDS 
BEGAN AND AT 4 AM RANGED FROM 23 IN GLENROCK TO 4 BELOW ZERO IN 
DOUGLAS.
FOR NORTHEASTERN WYOMING...
CIRRUS CLOUDS INVADED THE REGION LATE LAST EVENING...AND THEN SOME 
ALTOCUMULUS SWEPT INTO THE AREA. TEMPERATURES DIPPED TO 5 BELOW ZERO 
TO THE SINGLE DIGITS EARLY IN THE EVENING...AND THEN BECAME STEADY 
OR SLOWLY RISING AS SOUTHWESTERLY BREEZES PICKED UP.
FOR WESTERN AND CENTRAL WYOMING...
MOSTLY CLEAR SKIES IN THE EVENING RAPIDLY DROPPED TEMPERATURES TO 
NEAR OR BELOW ZERO BY MIDNIGHT...WITH SOME PATCHY FOG DEVELOPING IN 
THE WESTERN VALLEYS.  HIGH CLOUDS MOVING OVER THE AREA FROM THE 
NORTH HAVE WARMED TEMPERATURES SLIGHTLY...WHILE BREEZY CONDITIONS 
AROUND CASPER...DUBOIS...AND ROCK SPRINGS HAVE ELEVATED TEMPERATURES 
AS WELL.  AFTERNOON HIGH TEMPERATURES WERE GENERALLY AROUND 
20...EXCEPT FOR STAR VALLEY AND EVANSTON WHICH WERE AROUND FREEZING.
TEMPERATURES AT 4 AM RANGED FROM THE MID 20S TO ZERO.  BUFFALO 
REPORTED 26 DEGREES...WHILE BIG PINEY STILL RECORDS ZERO.
$$
RIW/CYS/UNR