Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 300913
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
313 AM MDT SAT AUG 30 2014

.SHORT TERM...TODAY THROUGH MON NIGHT. SHOWERS WITH THE ISOLATED
THUNDERSTORM SHOULD HAVE A BREAK BRIEFLY THIS MORNING BEFORE
ANOTHER MORE WIDESPREAD ROUND OF SHOWERS AND THUNDERSTORMS
DEVELOPS THIS AFTERNOON. THIS IS DUE TO A COLD FRONT PASSING
THROUGH DURING THE MORNING IN SOUTHERN IDAHO. THE COLD FRONT WILL
BRING BREEXY CONDITIONS AND SO A LAKE WIND ADVISORY HAS BEEN
ISSUED. CONTINUED INSTABILITY THIS AFTERNOON AND THIS EVENING
ALONG WITH AVAILABLE MOISTURE MEANS THUNDERSTORMS CONTINUING INTO
THE LATE NIGHT. THERE WILL BE A GRADUAL CLEARING FROM WEST TO EAST
AS THE MOISTURE MOVES WITH THE LOW. THE CLOUDS AND COLD AIR BEHIND
THE FRONT WILL MEAN AT FIRST A MILD OVERNIGHT LOW AND COOL
AFTERNOON HIGHS TODAY AND SUN...THEN THE STRONG CLEARING SUN NIGHT
SHOULD SEE LOW TEMPERATURES COOL STRONGLY FOR MON MORNING. MON
WILL BE THE START OF A DRY PERIOD UNDER WEST TO NORTHWEST FLOW.
ONLY CONSIDERATION IS THE AFTERNOON GUSTY WINDS UNDER MAINLY CLEAR
SKIES.

.LONG TERM...TUE THROUGH FRI NIGHT. DRY...NEARLY ZONAL FLOW
CONTINUES. AFTERNOON HIGHS WILL WARM UP...PEAKING ON WED AND THU ABOVE
NORMAL. INCOMING CLOUDS FROM THE NEXT UPPER LEVEL TROUGH WILL
START TO FILTER IN WITH SHOWERS DEVELOPING BY NEXT FRI. EXPECT THE
BREEZY TO WINDY CONDITIONS TO CONTINUE ON TUE AND WED
AFTERNOONS...THEN INCOMING TROUGH WILL WEAKEN THE UPPER LEVEL
SUPPORT FOR THE WIND. MESSICK

&&

.AVIATION...A BROAD UPPER TROF MOVING THRU THE PAC NW WILL SPREAD
SCT SHOWERS/ISOLD TSTMS THRU MUCH OF THE AREA TODAY AND THIS EVE.
MOST OF THE ACTIVITY WILL BE OVER THE MTNS. GUSTY SW WINDS WILL
DEVELOP THIS AFTN ACROSS THE SNAKE RIVER PLAIN. HEDGES

&&

.FIRE WEATHER...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS CAN BE
EXPECTED TODAY AND TONIGHT DUE TO A BROAD UPPER TROUGH MOVING
THROUGH THE PAC NW. MOST OF THE ACIIVITY WILL BE OVER THE MOUNTAINS.
STRONG SOUTHWEST WINDS WILL DEVELOP ACROSS THE SNAKE RIVER PLAIN
THIS AFTERNOON. SHOWERS WILL MOVE OFF TO THE EAST ON SUNDAY WITH A
FEW LINGERING IN THE MTNS. DRY CONDITIONS WILL PREVAIL THROUGH MID
WEEK ALONG WITH COOLER TEMPERATURES. HEDGES

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
LAKE WIND ADVISORY FROM NOON TODAY TO 8 PM MDT THIS EVENING
IDZ021.

&&

$$







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