Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 110901
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
301 AM MDT THU SEP 11 2014

.SHORT TERM...TODAY AND FRIDAY. A STRONG COLD FRONT HAS MOVED
THROUGH THE MAJORITY OF THE AREA ALREADY THIS MORNING. EXPECT
BREEZY TO MODERATE NORTH WINDS TODAY WITH COLD TEMPERATURES. A
LAKE WIND ADVISORY HAS BEEN ISSUED FOR THE AMERICAN FALLS
RESERVOIR FOR TODAY. TODAY`S HIGHS WILL BE 10 TO 15 DEGREES BELOW
NORMAL. TONIGHT INTO FRIDAY MORNING EXPECT VERY COLD TEMPERATURES
WITH MOST OF THE AREA RECEIVING BELOW FREEZING TEMPERATURES. A
HARD FREEZE WARNING HAS BEEN ISSUED FOR THE UPPER SNAKE RIVER
PLAIN WITH TEMPERATURES BELOW 28 DEGREES EXPECTED. A FREEZE
WARNING HAS BEEN ISSUED FOR THE LOWER SNAKE RIVER PLAIN WITH
TEMPERATURE OF 28 TO 32 DEGREES EXPECTED. A FROST ADVISORY HAS
BEEN ISSUED FOR THE EASTERN MAGIC VALLEY. FRIDAY HIGH PRESSURE
RIDGING WILL START TO BUILD INTO THE AREA BRINGING DRY AND MOSTLY
CLEAR CONDITIONS. EXPECT TEMPERATURES 5 TO 10 DEGREES BELOW NORMAL
DURING THE DAY FRIDAY. WYATT

.LONG TERM...SATURDAY THROUGH NEXT THURSDAY. EXPECT DRY AND
GRADUALLY WARMING TEMPERATURES AS HIGH PRESSURE CONTINUES TO BUILD
IN THROUGH THE PERIOD. TEMPERATURES WILL BE AROUND NORMAL TO
SLIGHTLY BELOW NORMAL ON SATURDAY BEFORE BECOMING AROUND 10
DEGREES ABOVE NORMAL BY TUESDAY. MODELS ARE CONTINUING TO PICK UP
ON BRINGING REMNANTS OF TROPICAL MOISTURE INTO THE AREA MONDAY
THROUGH THE END OF THE PERIOD. THIS WILL ALLOW FOR WEAK CHANCES OF
AFTERNOON CONVECTION EACH DAY. ON THURSDAY THE GFS MODEL SHOWS A
STRONGER TROUGH MOVING THROUGH THE AREA BRINGING LIGHT TO MODERATE
PRECIPITATION CHANCES. IN CONTRAST..THE ECMWF SHOWS A WEAK WAVE ON
THURSDAY BRINGING LITTLE TO NO PRECIPITATION CHANCES. WYATT

&&

.AVIATION...DRY AND STABLE CONDITIONS ARE ANTICIPATED AT ALL SE
IDAHO TERMINALS TODAY AS A COLDER AIRMASS SPILLS OVER THE
CONTINENTAL DIVIDE INTO THE SNAKE RIVER PLAIN. BREEZY NE WINDS ARE
EXPECTED AT KIDA...KPIH AND KBYI THROUGHOUT THE DAY. HUSTON

&&

.FIRE WEATHER...DRY AND COLDER CONDITIONS ARE EXPECTED ACROSS SE
IDAHO TODAY AND FRIDAY AS A BACK DOOR FRONT SPILLS OVER THE DIVIDE.
WARMER TEMPERATURES WILL FOLLOW THIS WEEKEND AND EXTEND THROUGH NEXT
WEEK AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE REGION. HUSTON

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
LAKE WIND ADVISORY FROM 7 AM THIS MORNING TO 8 PM MDT THIS
EVENING IDZ021.

FREEZE WARNING FROM 2 AM TO 9 AM MDT FRIDAY IDZ021.

HARD FREEZE WARNING FROM 2 AM TO 9 AM MDT FRIDAY IDZ020.

FROST ADVISORY FROM 2 AM TO 9 AM MDT FRIDAY IDZ017.

&&

$$







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