Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 261923
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
123 PM MDT TUE MAY 26 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY MORNING. THE UPPER LOW OVER
THE EASTERN COLUMBIA BASIN IS EXPECTED TO MOVE SLOWLY TO SE ID BY
THU EVE. THE COLD AIR ALOFT WITH THIS SYSTEM WILL CONTINUE TO SET
OFF MAINLY AFTN/EVE SHOWERS AND TSTMS THRU THURSDAY. MOST OF THE
ACTIVITY WILL BE OVER THE MTNS...WITH SOMEWHAT LESSER COVERAGE
OVER THE SNAKE PLAIN/EASTERN MAGIC VALLEY. ACTIVITY IS EXPECTED TO
DIMINISH THU NIGHT AS THE UPPER LOW MOVES OFF TO THE EAST. HEDGES

.LONG TERM...FRIDAY AFTERNOON THROUGH NEXT TUESDAY. HIGH PRESSURE
BUILDS OVER THE WEEKEND...BUT IT MAY NOT COMPLETELY DRY US OUT. THE
MODELS ARE PERSISTENT IN KICKING OFF SHOWERS AND STORMS FRIDAY AND
SATURDAY ACROSS THE NORTH AND EAST IN THE MOUNTAINS. GIVEN THE
AMOUNT OF MOISTURE AROUND A SYSTEM RUSHING BY TO THE NORTH...THAT
SEEMS LIKE A PLAUSIBLE FORECAST. BY SUNDAY...THE RIDGE IS ALREADY
EAST OF US AND OPENS THE DOOR FOR SOUTHWEST FLOW AS THE NEXT STORM
NEARS THE COAST. THAT STORM SWINGS INLAND AND TO THE NORTHEAST EARLY
NEXT WEEK. WE WILL SEE A BIG JUMP IN TEMPERATURES WITH 80S FOR HIGHS
ACROSS THE LOWER ELEVATIONS. THAT HEAT WILL LIKELY HELP FUEL STRONG
STORMS ESPECIALLY ON MONDAY AS THE LOW MOVES ACROSS THE NORTHERN
ROCKIES AND PACIFIC NORTHWEST.  THAT MIGHT BE A DAY TO LOOK AT IN
TERMS OF POTENTIAL SEVERE THUNDERSTORMS IF THINGS TIME OUT
CORRECTLY. KEYES

&&

.AVIATION...SHOWERS AND STORMS WILL KEEP PLAGUING EASTERN IDAHO.
MORE HEAVY RAIN AND HAIL IS POSSIBLE AT ALL SITES. LOWER CEILINGS
AND VISIBILITY WILL CERTAINLY BE AN ISSUE IF A PRETTY GOOD SHOWER OR
STORM PASSES OVER AN AIRPORT. WE SHOULD SEE A BIT OF LULL
TONIGHT...BUT LINGERING SHOWERS ARE STILL EXPECTED. IT WILL BE
INTERESTING TO SEE IF SOME PATCHY FOG AND STRATUS FORMS IN THE
MORNING. WE HAD TOO MUCH MID AND HIGH CLOUD COVER THIS MORNING TO
KEEP IT FROM FORMING...ALTHOUGH WE SAW IT FORM IN PLACES BACK TO THE
WEST WHERE IT CLEARED OFF. KEYES

&&

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

$$


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