Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 280854
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
254 AM MDT THU MAY 28 2015

.SHORT TERM...TODAY THROUGH SATURDAY.
WILL HAVE SHOWERS AND THUNDERSTORMS CONTINUE TODAY AS UPPER LEVEL
LOW SHIFT EAST INTO WESTERN WYOMING. EXTENSIVE MOISTURE STILL IN
PLACE WITH ENOUGH INSTABILITY FOR MORE THUNDERSTORM DEVELOPMENT
ONCE AGAIN. HEAVIEST PRECIPITATION SHOULD BE IN EASTERN HIGHLANDS
AND CENTRAL MOUNTAINS. EXPECT DRIER CONDITIONS FRIDAY WITH SOME
ISOLATED SHOWERS AND THUNDERSTORMS MAINLY IN HIGH ELEVATIONS. FLOW
TURNS SOUTHWESTERLY SATURDAY WTIH MUCH WARMER CONDITIONS EXPECTED
AS TEMPERATURES RISE TO WELL ABOVE SEASONAL NORMAL FOR LATE MAY
AFTER TEMPERATURES SLIGHTLY BELOW NORMAL TODAY. SHOWERS AND
THUNDERSTORMS SATURDAY WILL AGAIN BE CONFINED MAINLY TO HIGH
ELEVATIONS OF THE CENTRAL MOUNTAINS.
GK

.LONG TERM...SUNDAY THROUGH THURSDAY.
EXPECT SOUTHERLY FLOW AND MILD CONDITIONS SUNDAY INTO NEXT WEEK
AHEAD OF ANOTHER UPPER LEVEL SYSTEM TO THE WEST. AS THIS SYSTEM
WORKS EAST THROUGH THE WEEK THE THREAT FOR SHOWERS AND
THUNDERSTORMS WILL INCREASE SUNDAY AND EXPECT AT LEAST ISOLATED
THUNDERSTORMS DAILY THROUGH THE ENTIRE WEEK. TEMPERATURES SHOULD
MAX OUT SUNDAY THEN COOL A BIT TO SLIGHTLY BELOW NORMAL BY TUESDAY
INTO NEXT THURSDAY.
GK

&&

.AVIATION...A LOW PRESSURE SYSTEM POSITIONED OVER THE CNTRL IDAHO
MOUNTAINS EARLY THIS MORNING WILL DIG SE INTO WYOMING AND WEAKEN
TODAY ALTHOUGH RESIDUAL MOISTURE AND INSTABILITY WILL BE SUFFICIENT
TO SUPPORT AFTERNOON CONVECTION WITH POTENTIAL TSTM IMPACTS
(TEMPORARY LOW VFR/MVFR VIS AND CIGS) AT ALL TERMINALS ACROSS SE
IDAHO. HUSTON
&&

.FIRE WEATHER...MOIST AND UNSTABLE CONDITIONS WILL CONTINUE ACROSS
THE REGION TODAY AS A LOW PRESSURE SYSTEM PUSHES SOUTHEAST INTO
WYOMING. LINGERING MOISTURE AND INSTABILITY WILL SUPPORT AFTERNOON
THUNDERSTORM ACTIVITY FRIDAY AND SATURDAY AS A SHALLOW RIDGE
DEVELOPS OVER THE GREAT BASIN IN ADVANCE OF THE NEXT PACIFIC LOW
MAKING ITS WAY INTO THE COAST SUNDAY. UNSETTLED CONDITIONS ARE
EXPECTED TO CONTINUE THROUGH THE MIDDLE OF NEXT WEEK AS THE LOW
MIGRATES THROUGH THE REGION. HUSTON &&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$



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