Severe Thunderstorm Warning 45, NWS Riverton, WY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
343 PM MDT THU AUG 5 2004

.TODAY THROUGH SATURDAY NIGHT...
ANOTHER ROUND OF THUNDERSTORMS OVER THE AREA THIS AFTERNOON WILL
CONTINUE THROUGH THE EVENING.  SOME THUNDERSTORMS MAY LINGER PAST
MIDNIGHT IN THE EAST AND NORTH.  NOT MUCH CHANGE FOR FRIDAY WITH
MORE THUNDERSTORMS EXPECTED.  SOME DRYING EXPECTED SATURDAY WITH
INCREASED SOUTHWEST FLOW AHEAD OF COLD FRONT THAT WILL BE MOVING
INTO THE NORTH.  FRONT LOOKS TO BE QUITE STRONG AS IT MOVES SOUTH
SATURDAY NIGHT.  POTENTIAL UPSLOPE EVENT DEVELOPS BEHIND COLD FRONT
EAST OF CONTINENTAL DIVIDE.  TEMPERATURES MAY BE MUCH COOLER THAN
CURRENT FORECAST WITH MORE OF A STRATIFORM PRECIPITATION EVENT.
IN THE SHORTER TERM...WINDS PICK UP QUITE A BIT ON SATURDAY AHEAD OF
FRONT AND COULD SEE SOME LOWER TEEN RELATIVE HUMIDITY IN THE SOUTH
AND CENTRAL LOWER ELEVATIONS.

.SUNDAY THROUGH THURSDAY...
UPPER FLOW TO TURN TO THE NW SUNDAY WITH COOLER AIR MAKING ITS WAY
INTO THE N AND CENT ZONES WITH MINOR COOLING WEST OF THE DIVIDE.
AIRMASS MAY BE TOO STABLE FOR STORMS SUN PM/EVE BUT WILL NOT TAKE OUT
THE VERY LOW POPS FOR NOW.  MONDAY THRU WEDNESDAY KEEPS NW FLOW OVER
THE AREA WITH RIDGE AXIS TO THE WEST OF WY. THIS KEEPS THE REAL WARM
700MB TEMPS TO OUR SW. HAVE MADE SOME MINOR TEMP CHANGES MON-WED.
AS FOR POPS LEFT THINGS DRY MON-WED BUT SOME MID LEVEL MOISTURE
PROGD IN THE FLOW FOR WED PM WHICH COULD LEAD TO ISOLD TS COVERAGE.
FLAT WNW FLOW FOR THU WITH WARMER 700MB TEMPS MOVING BACK OVER AREA.
HAVE MADE THU THE WARMEST DAY AND DRY FOR NOW.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...NONE.

&&

C.BAKER/AR

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT THU AUG 5 2004

WYZ001>020-022>030-061100-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
500 AM MDT THU AUG 5 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS ARE EXPECTED MOST OF THE DAY ACROSS THE SOUTH
AND WEST AND IN CENTRAL WYOMING THIS AFTERNOON AND EVENING. A FEW OF
THESE STORMS WILL LIKELY PRODUCE STRONG WIND GUSTS TO 50 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING AND SMALL HAIL. BRIEF HEAVY RAIN
IS POSSIBLE WITH THE HEAVIEST STORMS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ONE MORE VERY WARM TO HOT DAY IS EXPECTED FRIDAY ALONG WITH ISOLATED
AFTERNOON AND EVENING THUNDERSTORMS BEFORE COOLER TEMPERATURES
ARRIVE FOR THE WEEKEND AND EARLY NEXT WEEK. TEMPERATURES WILL DROP AS
MUCH AS 10 TO 20 DEGREES BY SUNDAY ALONG WITH HIGHER RELATIVE
HUMIDITIES. GUSTY WIND PRODUCING THUNDERSTORMS ARE THE MAIN THREAT
AGAIN FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY STRONG WIND GUSTS FROM
THUNDERSTORMS OVER 50 MPH THIS AFTERNOON OR EVENING.

SKRBAC