Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 280939
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
339 AM MDT FRI AUG 28 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY.

A STRONG COLD FRONT WILL SLOWLY APPROACH THE REGION THIS AFTERNOON.
ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE ACROSS THE MAGIC
VALLEY AND INTO THE CENTRAL MOUNTAINS THIS AFTERNOON AHEAD OF THE
FRONT. THE THREAT FOR STORMS WILL PERSIST THROUGH THE NIGHT AS THE
FRONT CONTINUES TO APPROACH THE REGION. THE FRONT WILL ARRIVE AROUND
MIDDAY SATURDAY. EXPECT STRONG WINDS ACROSS THE REGION ON SATURDAY
WITH WIND GUSTS OF 30 TO 40 MPH POSSIBLE. ISOLATED THUNDERSTORMS ARE
POSSIBLE SATURDAY AFTERNOON AS WELL. WIND GUSTS NEAR THUNDERSTORMS
COULD POTENTIALLY APPROACH 50 MPH.

VALLE

.LONG TERM...SUNDAY THROUGH FRIDAY.

POPS INCREASED SUNDAY AS A DECENT SHORT WAVE TROUGH PUSHES
NORTHEASTWARDS. GREATEST PRECIP POTENTIAL EXPECTED IN THE CENTRAL
MOUNTAINS. LESS CERTAIN WITH THE POPS IN THE SNAKE PLAIN
SOUTHEASTWARDS DUE TO PLACEMENT OF MOISTURE ADVECTING NORTHWARD.
TUESDAY ONWARD...WEAK DISTURBANCES EXPECTED TO TRACK THROUGH THE
AREA FROM A PASSING UPPER LOW PRESSURE TROUGH TO THE NORTH. THIS
MAY PROVIDE LIGHT PRECIPITATION ON TUESDAY FOR NORTHERN AREAS
THROUGH WEDNESDAY. THE FORECAST ELSEWHERE FOR THE REMINDER OF THE
PERIOD LOOKS DRY. THE TROUGH WILL BRING INCREASING CLOUD COVER FOR
ALL AREAS TOWARD MOSTLY CLOUDY SKIES INTO THURSDAY.

PETERSON

&&

.AVIATION...THOUGH NOT AS ACTIVE AS WEDNESDAY THE POTENTIAL FOR
ISOLATED SHOWERS AND THUNDERSTORMS CONTINUES AT BURLEY/SUN VALLEY
TODAY.  SEVERE THREATS ARE MUCH LOWER TODAY WITH STRONGER WINDS NOT
MUCH OF A FACTOR...AND WOULD ONLY BE BRIEF IN ANY PASSING
THUNDERSTORM OUTFLOW.  SOUTH TO SOUTHWESTERLY WINDS GENERALLY
FORECAST TODAY AT LESS THAN 12KTS.  NO OTHER THREATS EXPECTED TODAY
THEREFORE...VFR CONDITIONS EXPECTED.

PETERSON

&&

.FIRE WEATHER...A STRONG COLD FRONT WILL ARRIVE ON SATURDAY. WIND GUSTS OF 25 TO 40
MPH ARE POSSIBLE ACROSS THE REGION SATURDAY AFTERNOON. GIVEN THE
LARGE WILDFIRES ONGOING ACROSS PORTIONS OF CENTRAL IDAHO WILL ISSUE
A FIRE WEATHER WATCH FOR THOSE AREAS DESPITE THE FACT THAT HUMIDITY
VALUES MAY REMAIN ABOVE CRITICAL LEVELS. RED FLAGS MAY BE ISSUED
ELSEWHERE BUT FURTHER COORDINATION IS NECESSARY.

VALLE

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FIRE WEATHER WATCH FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING FOR IDZ475-476.

&&

$$


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