Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 242000
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
200 PM MDT SUN MAY 24 2015

.SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT.

A LOW PRESSURE SYSTEM OVER WYOMING CONTINUES TO PULL AWAY FROM THE
REGION. SCATTERED SHOWERS AND A FEW THUNDERSTORMS HAVE DEVELOPED
IN THE WAKE OF THIS LOW PRESSURE SYSTEM. EXPECT MOST OF THIS
ACTIVITY TO DIMINISH OVERNIGHT. SOME SMALL HAIL AND BRIEF HEAVY
DOWNPOURS REMAIN POSSIBLE INTO THE EVENING. ANOTHER LOW PRESSURE
SYSTEM WILL ENTER WASHINGTON ON MONDAY. THIS WILL FIRE SHOWERS AND
A FEW THUNDERSTORMS MAINLY IN THE MOUNTAINS AND HIGHLANDS MONDAY
AFTERNOON. COVERAGE WILL DIMINISH SOMEWHAT MONDAY EVENING...BUT
HAS A BETTER CHANCE OF CONTINUING THROUGH THE NIGHT AS THE LOW
APPROACHES THE AREA. ON TUESDAY THE LOW WILL MOVE INTO THE IDAHO
PANHANDLE AND A WEAK COLD FRONT WILL MOVE THROUGH THE AREA
TUESDAY AFTERNOON. TEMPERATURES ARENT MUCH COOLER BEHIND THE
FRONT...STILL THIS FRONT WILL HELP TO IGNITE SHOWERS AND
THUNDERSTORMS ACROSS THE REGION LATE TUESDAY MORNING THROUGH
TUESDAY EVENING. DEPENDING UPON HOW MUCH SUNSHINE THE AREA
RECEIVES TUESDAY MORNING...SOME OF THESE STORMS HAVE THE POTENTIAL
TO APPROACH SEVERE LIMITS GIVEN THE UPPER LEVEL SUPPORT OVER THE
REGION.

VALLE

.LONG TERM...WEDNESDAY THROUGH NEXT SUNDAY. THE LOW TO THE NORTHWEST
WILL SLOWLY SINK SOUTHEAST ACROSS IDAHO AND INTO THE CENTRAL AND
SOUTHERN PLAINS THROUGH THE END OF THE WEEK. THIS WILL KEEP US
SHOWERY WITH A DAILY DOSE OF AFTERNOON/EVENING THUNDERSTORMS. HIGH
PRESSURE BUILDS FOR THE EARLY PART OF THE WEEKEND. WE SHOULD STILL
HAVE PLENTY OF MOISTURE AROUND FOR MAINLY MOUNTAIN SHOWERS AND
STORMS. AS A WEAK STORM MOVES ASHORE...MOISTURE WILL BEGIN
INCREASING ON SUNDAY FOR A SMALL BUMP UP IN SHOWERS AND STORMS. WE
WILL FINALLY SEE WARMER WEATHER...WITH SOME 80S POSSIBLE BY THEN.
KEYES

&&

.AVIATION...THERE IS PLENTY OF MOISTURE AROUND TODAY FOR MORE
SHOWERS AND STORMS. IT LOOKS THE BEST THREAT FOR ACTIVITY AT ACTUAL
AIRPORTS WILL BE KSUN AND KBYI...BUT IN REALITY JUST ABOUT EVERYONE
COULD SEE -SHRA AND -TSRA THROUGH EVENING. THEREFORE...WE WILL CARRY
-SHRA VCTS FOR ALL FOUR AIRPORTS. WE SHOULD SEE SHOWERS WINDING DOWN
THIS EVENING AND ESPECIALLY AFTER MIDNIGHT. WE WILL CARRY VCSH FOR
ALL FOUR TAF SITES. LOW CLOUDS AND FOG AGAIN MAY BE A CONCERN AT
KBYI/KPIH/KIDA SO WE DID PUT IN MVFR/IFR CONDITIONS FOR THE MORNING
HOURS. MONDAY SHOULD BE LESS ACTIVE BUT STILL WITH THE POTENTIAL FOR
DEVELOPMENT OVER THE MOUNTAINS. THAT SHOULD WARRANT AT LEAST VCSH OR
VCTS. KEYES

&&

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

$$



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