Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 281235
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
635 AM MDT SAT MAR 28 2015

.SHORT TERM...TODAY THROUGH MON NIGHT. COLD FRONT IS ON SCHEDULE
TO PASS DURING THE DAYTIME HOURS TODAY...MAKING THE TEMPERATURE
FORECAST DIFFICULT AS TEMPERATURES WILL LIKELY COOL SOME DURING
THE EARLY AFTERNOON. NOT MUCH MOISTURE OR CLOUDINESS EXPECTED WITH
THIS...ESPECIALLY THE FARTHER SOUTH YOU ARE IN THE FORECAST AREA.
THERE IS SOME INSTABILITY...BUT WITH VERY LIMITED MOISTURE...ON
THE ORDER OF 0.25 TO 0.40 INCH OF PRECIPITABLE WATER. THE NO-
BRAINER FOR THIS FRONT IS THE VERY WINDY CONDITIONS EXPECTED TO BE
BROUGHT TO THE SNAKE RIVER PLAIN AND THE VALLEYS IN THE SOUTH
CENTRAL HIGHLANDS. SOUTHWEST TO WEST WIND SHOULD PEAK AROUND 1100
TO 1400. MAIN FOCUS IS THE INTERSTATE 15/86/84 CORRIDORS...BUT
EVEN THE ARCO DESERT AND PARTS OF THE NORTH SIDE OF THE PLAIN
SHOULD SEE SOME WIND. HAVE ADDED BLOWING DUST TROUBLE TO THE
GRIDS. HOWEVER...THE TERM PATCHY BLOWING DUST SOUNDS STRANGE AND
KEPT IT AS AREAS INSTEAD...WHICH MAY BE A SLIGHT OVER-FORECAST.
THE TROUGH AND FRONT SHOULD BE OUT OF IDAHO BY EARLY
EVENING...WITH BREEZY CONDITIONS LEFT IN ITS WAKE AND TEMPERATURES
COOLER. SKIES CLEAR RAPIDLY AND WINDS DECREASE SUBSTANTIALLY TO
ALLOW STRONG WARMING...THOUGH NOT BACK TO NEAR RECORD WARMTH UNTIL
MON. MESSICK

.LONG TERM...TUESDAY THROUGH SATURDAY NIGHT. A STRONG UPPER TROF
MOVING INTO THE PAC NW ON TUE WILL BRING SNOW TO THE CENTRAL MTNS
TUE MORN...AND SPREADING TO THE EASTERN HIGHLANDS BY TUE AFTN.
PRECIP WILL MAINLY IMPACT THE NORTHERN PARTS OF THE FCST AREA...BUT
THE FAST MOVEMENT OF THE SYSTEM WILL LIMIT PRECIP AMOUNTS. THE SNAKE
RIVER PLAIN AND SOUTHERN HIGHLANDS ARE EXPECTED TO REMAIN DRY.
STRONG WINDS ARE EXPECTED ON TUE WITH A COLD FRONT PASSAGE. A FEW
SNOW SHOWERS WILL LINGER THRU WED OVER THE CENTRAL MTNS AND UPPER
SNAKE HIGHLANDS. A MINOR UPPER TROF QUICKLY FOLLOWS THE PREVIOUS
SYSTEM WED NIGHT...WITH PRECIP BECOMING MORE WIDESPREAD ON THU.
BROAD RIDGING MOVES IN FOR FRI...WITH THE ECMWF BEING MORE AMPLIFIED
THAN THE GFS. A DEEP UPPER TROF APPROACHES THE PAC NW COAST LATE
SAT. THIS RESULTS IN INCREASING SW FLOW...AND INCREASED CHANCES FOR
MTN PRECIP. TEMPS WILL REMAIN COOL THRU THE END OF THE WEEK...WITH A
LITTLE RECOVERY BY SAT. HEDGES
&&

.AVIATION...A COLD FRONT MOVING THRU THE AREA TODAY WILL BRING
STRONG SW WINDS TO THE SNAKE RIVER PLAIN TODAY...DIMINISHING
TONIGHT. A FEW RAIN/SNOW SHOWERS ARE POSSIBLE IN THE CENTRAL
MTNS...BUT NOT EXPECTED TO HAVE ANY SIG IMPACT ON KSUN. VFR
CONDITIONS WILL PREVAIL. HEDGES
&&


.PIH WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FROM 8 AM THIS MORNING TO 5 PM MDT THIS AFTERNOON
IDZ017-020-021.

WIND ADVISORY FROM 8 AM THIS MORNING TO 5 PM MDT THIS AFTERNOON
IDZ022.

&&

$$








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