Wildfire in Wyoming, July 22 to 31, 2001

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
345 AM MDT SUN JUL 22 2001

FOR ALL THE SAME REASONS OF THE PAST FEW DAYS MOST OF THE AREA WILL
REMAIN SUNNY AND WINDY WITH A STRONG MID LEVEL INVERSION AND
ABSOLUTELY NO MOISTURE AVAILABLE FOR WET CONVECTION.  IN SPITE OF
THIS SPC CONTINUES TO SPREAD SOUTH ACROSS WYOMING THE THREAT OF
THUNDERSTORMS WHERE NONE HAVE OCCURRED IN SEVERAL DAYS.
THUNDERSTORMS CLEARLY FIRING ALONG NORTHERN EDGE OF 850 TO 700 MB
THETA E RIDGE THAT IS OVER N WYOMING INTO CENTRAL MT.  THIS HAS
PLACED THE THUNDERSTORMS IN MONTANA...NOT WYOMING.  AS THE THETA E
RIDGE SLIPS SLOWLY SOUTH THERE WILL BE A THREAT OF ISOLATED
THUNDERSTORMS ONLY IN THE FAR NORTH MOUNTAINS OF WYOMING TODAY.  THE
RIDGE SLIPS FAR ENOUGH SOUTH ON MONDAY TO BRING A THREAT OF ISOLATED
THUNDERSTORMS DOWN TO THE OWL CREEK MOUNTAINS AND INTO NATRONA COUNTY
WITH THE REST OF THE AREA REMAINING DRY. TUESDAY SHOULD SEE WIDELY
SCATTERED THUNDERSTORMS MOST OF THE AREA.  WITH LITTLE CHANGE IN THE
SOUTH AND CENTRAL PARTS OF WYOMING...HOT DRY AND WINDY CONDITIONS
WITH A DEEPLY UNSTABLE DRY AIR MASS WILL PRODUCE RED FLAG CONDITIONS
AGAIN.  NOT MUCH TO CHANGE IN FORECAST EXCEPT INTRODUCING ISOLATED
THUNDERSTORMS TO FAR NORTH.

.RIW...RED FLAG WARNING SOUTHWEST AND CENTRAL WYOMING THIS
AFTERNOON.

C.BAKER