Severe Thunderstorm Warning 23, NWS Pocatello, ID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
148 PM MDT TUE JUL 22 2008

.DISCUSSION...THUNDERSTORMS ARE DEVELOPING OVER WESTERN IDAHO AS
EXPECTED THIS AFTERNOON AHEAD OF A COLD FRONT. THESE STORMS ARE
GRADUALLY WORKING THEIR WAY EASTWARD. AREA IS IN THE SPC SLIGHT
RISK OF SEVERE THUNDERSTORMS. LARGE HAIL AND DAMAGING WINDS ARE
POSSIBLE TODAY. AN ISOLATED TORNADO IS ALSO POSSIBLE.
THUNDERSTORMS ARE EXPECTED TO WORK THEIR WAY FROM WEST TO EAST
THROUGHOUT THE EVENING.

A RIDGE OF HIGH PRESSURE IS EXPECTED TO BUILD BACK INTO THE AREA
FOR WEDNESDAY. THIS SHOULD BRING A RETURN TO DRIER AIR FOR THE
NEXT FEW DAYS. SOME MOISTURE MAY WORK BACK IN FROM THE SOUTH BY
THE WEEKEND WHICH COULD RESULT IN A FEW ISOLATED THUNDERSTORMS.

&&

.AVIATION...AS OF NOON...THERE IS A BREAK IN -SHRA AND -TSRA.
HOWEVER...SHOWERS AND TSTORMS ARE EXPECTED TO DEVELOP AND MOVE
THROUGH EASTERN IDAHO INTO THE EVENING HOURS. EXPECT VFR CONDITIONS
FOR THE MOST PART. WITH STRONGER STORMS...LOWER VIS/CIGS DUE TO
HEAVY RAIN AND GUSTY WINDS/BLOWING DUST ARE POSSIBLE. CONVECTIVE
WIND GUSTS IN EXCESS OF 50 KTS ARE POSSIBLE WITH STRONGEST
STORMS...ALONG WITH LARGE HAIL.  ACTIVITY SHOULD DIE DOWN BY
MIDNIGHT. LATER TONIGHT AND WEDNESDAY WILL BE MUCH QUIETER. WINDS
SHOULD NOT BE A FACTOR WITH ISOLD -TSRA ACROSS MAINLY THE NORTHERN
MTNS. KEYES

&&

.FIRE WEATHER...RED FLAG WARNING WILL CONTINUE AS MORE TSTORMS ARE
EXPECTED THIS AFTN AND EVENING. HAIL...STRONG DOWNBURST
WINDS...POSSIBLY IN EXCESS OF 60 MPH ARE POSSIBLE ALONG WITH PLENTY
OF LIGHTNING. LOCALIZED HEAVY RAINFALL/FLASH FLOODING WITH STRONGER
STORMS INTO THIS EVENING. DRIER AND WARMER RETURNS TOMORROW AND WILL
CONTINUE HEADING INTO THE WEEKEND. KEYES

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING UNTIL 10 PM MDT THIS EVENING FOR IDZ409-410-412-
477.

FLASH FLOOD WATCH UNTIL 10 PM MDT THIS EVENING FOR IDZ018-031.

&&

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE POCATELLO ID
719 AM MDT TUE JUL 22 2008

IDZ017>025-031-032-231200-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
719 AM MDT TUE JUL 22 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS MAY PRODUCE ENOUGH RAINFALL TO CAUSE FLASH
FLOODING/DEBRIS FLOWS IN BURN AREAS OF THE CENTRAL MOUNTAINS TODAY
AND THIS EVENING. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR THESE
AREAS. LATER THIS AFTERNOON...THUNDERSTORMS ACROSS THE CENTRAL
MOUNTAINS AND SOUTHEAST IDAHO COULD PRODUCE STRONG WIND GUSTS AND
LARGE HAIL.

LIGHTNING FROM THUNDERSTORMS MAY ALSO RESULT IN FIRE STARTS...SO A
RED FLAG WARNING CONTINUES TODAY FOR THE SNAKE RIVER PLAIN...AND
PARTS OF THE CENTRAL MOUNTAINS AND SOUTHERN HIGHLANDS

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.