Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 260931
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
331 AM MDT TUE MAY 26 2015

.DISCUSSION...TODAY THROUGH NEXT TUESDAY. A CLOSED LOW STORM
SYSTEM IS CURRENTLY OVER NORTHERN IDAHO. EXPECT NUMEROUS SHOWERS
AND SCATTERED THUNDERSTORMS TODAY. ACCUMULATING SMALL
HAIL...LIGHTNING AND LOCALIZED HEAVY RAINFALL WILL BE THE BIGGEST
IMPACTS TODAY. MOST HAIL WILL BE UNDER ONE HALF INCH BUT SLIGHTLY
LARGER HAIL IN LOCALIZED AREAS CANNOT BE RULED OUT.
ADDITIONALLY...LOOK FOR GUSTY WINDS IN AROUND THUNDERSTORMS. TODAY
WILL BE THE WETTEST DAY OF THE WEEK. HOWEVER..MODELS BRING THE LOW
FARTHER SOUTH DIRECTLY OVER OUR AREA ON WEDNESDAY BRINGING WET
CONDITIONS AS WELL. THURSDAY THE SYSTEM STARTS TO FALL APART AND
MOVE EAST BUT WILL CONTINUE TO BRING LINGERING PRECIPITATION
MAINLY FOR OUR EASTERN AREAS. EXPECT PRECIPITATION TO AN LESSER
EXTENT ON FRIDAY AS WELL. SATURDAY LOOKS TO BE THE DRIEST DAY OF
THE PERIOD WITH LIGHT SHOWERS MAINLY ALONG THE MONTANA DIVIDE.
LATE SUNDAY INTO TUESDAY LOOK FOR SHOWERS AND THUNDERSTORMS MAINLY
ACROSS OUR NORTHERN AREAS AS A COLD FRONT MOVES THROUGH THE AREA.
LOOK FOR AT NORMAL OR SLIGHTLY BELOW NORMAL TEMPERATURES EARLY IN
THE PERIOD BEFORE CLIMBING ABOVE NORMAL BY FRIDAY. TEMPERATURES
WILL REMAIN ABOVE NORMAL THROUGH MONDAY WITH TEMPERATURES IN THE
LOW TO MID EIGHTIES FOR LOWER ELEVATIONS PARTICULARLY ON SUNDAY.
TEMPERATURES DROP TO NEAR NORMAL AGAIN BY TUESDAY. WYATT

&&

.AVIATION...SCATTERED SHOWERS CONTINUE IN THE NORTHEAST CORNER EARLY
THIS MORNING OTHERWISE SOME CLEARING IS TRYING TO WORK ACROSS THE
STATE. SAT IMAGERY SHOWS SOME EVIDENCE OF FOG/STRATUS IN PORTIONS OF
THE MAGIC VALLEY THOUGH AREA WEB CAMS AND SFC OBSERVATIONS NOT
PICKING IT UP. GIVEN THE AMOUNT OF MOISTURE PRESENT AT THE SURFACE
WOULD NOT BE SURPRISED TO SEE FOG REDEVELOP ESPECIALLY ALONG SNAKE
RIVER AND IN LOW LYING AREAS WITH IFR CONDITIONS. THIS IS ALREADY
COVERED WITH KIDA TERMINAL WHICH HAS BEEN THE MAIN CULPRIT LAST
COUPLE DAYS. OTHERWISE...EXPECT ANOTHER WET DAY WITH NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS ACROSS THE AREA. CONVECTION
SHOULD DEVELOP OVER HIGHER ELEVATIONS EARLY AND THEN SPREAD INTO THE
SNAKE PLAIN LATER THIS AFTERNOON AND EVENING. THE FOCUS DOES APPEAR
TO BE THE EASTERN AND SOUTHERN HIGHLANDS TODAY WITH THE LEAST
CHANCES IN THE MAGIC VALLEY AND AT KBYI. CONVECTION IS EXPECTED TO
WEAKEN AGAIN OVERNIGHT THOUGH A FEW SHOWERS MAY LAST PAST 06Z. DMH

&&

.FIRE WEATHER...AN UPPER LOW OVER THE PACIFIC NORTHWEST WILL KEEP
MOISTURE AND INSTABILITY PRESENT ACROSS THE REGION THROUGH THURSDAY.
TODAY APPEARS TO BE THE WETTEST DAY WITH NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS...ESPECIALLY IN THE EASTERN PORTIONS OF THE
DISTRICT. ADDITIONAL THUNDERSTORMS ARE FORECAST FOR WEDNESDAY AND
THURSDAY AS THE LOW SLIDES ACROSS EAST IDAHO. A RIDGE TRIES TO BEGIN
BUILDING INTO THE GREAT BASIN FRIDAY...BUT THERE LOOKS TO BE ENOUGH
MOISTURE AND ENERGY TO KEEP SOME THREAT FOR SHOWERS AND
THUNDERSTORMS IN PORTIONS OF THE DISTRICT. OTHERWISE...DRY AND
WARMER CONDITIONS ARE EXPECTED INTO THE WEEKEND AS THE RIDGE
STRENGTHENS. DMH

&&

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

$$


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