Wind Advisory 4, NWS Pocatello, ID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
319 AM MDT TUE MAR 24 2015

.SHORT TERM...TODAY THROUGH THURSDAY NIGHT.
VERY SIMILAR SCENARIO TO MONDAY. ANOTHER PACIFIC SYSTEM WITH A
STRONG COLD FRONT WILL PUSH THROUGH EASTERN IDAHO TODAY. EXPECT
THE RESULTS TO BE SIMILAR WITH PERHAPS 1 TO 4 INCHES OF SNOW IN
THE MOUNTAINS OF SOUTHEAST IDAHO AND STRONG WINDS ONCE AGAIN IN
THE SNAKE RIVER PLAIN. COULD SEE A MIX OF RAIN AND SNOW IN SNAKE
RIVER PLAIN THIS MORNING BEFORE ANY PRECIPITATION WILL CHANGE TO
RAIN AS SNOW LEVELS RISE TO 5000 TO 5500 FEET. EXPECT 25 TO 35 MPH
SUSTAINED WINDS IN THE SNAKE PLAIN AND ANOTHER WIND ADVISORY HAS
BEEN ISSUED FOR THE EASTERN MAGIC VALLEY AND SNAKE RIVER PLAIN
AFTER NOON THROUGH 9 PM ONCE AGAIN. THINK SNOWFALL TOTALS WILL MAX
OUT IN THE 4 INCH RANGE AT HIGH ELEVATIONS SO HAVE DECIDED AGAINST
AN ADVISORY BUT ROADS COULD BECOME SNOW COVERED THIS MORNING
ESPECIALLY OVER MOUNTAIN PASSES. PRECIPITATION SHOULD END TONIGHT
WITH NORTHWEST FLOW ALOFT KEEPING COLD TEMPERATURES OVER THE
REGION. HIGH TEMPERATURES TODAY ARE EXPECTED TO BE BELOW SEASONAL
NORMAL FOR ONE OF THE FEW TIMES THIS MONTH. MAY SEE A FEW ISOLATED
MOUNTAIN SNOW SHOWERS WEDNESDAY IN THE NORTHWEST FLOW WITH UPPER
RIDGE BEGINNING TO BUILD IN FROM THE WEST ON THURSDAY WITH DRY
CONDITIONS AND A RETURN TO WELL ABOVE NORMAL TEMPERATURES ONCE
AGAIN.
GK

.LONG TERM...FRIDAY THROUGH TUESDAY.

RIDGE OF HIGH PRESSURE WILL PRODUCE WELL ABOVE NORMAL TEMPERATURES
AND DRY WEATHER FOR FRIDAY AND SATURDAY AT LEAST. MODELS WANT TO
BREAK DOWN THE RIDGE SOMEWHAT AND TRANSITION TO MORE OF A ZONAL TYPE
PATTERN FOR EARLY NEXT WEEK. THE MODELS ARE SHOWING A CLOSED LOW
MOVING ONTO THE PACIFIC COAST OVER THE WEEKEND...BUT THIS SYSTEM
LOOKS LIKE IT WILL STAY SOUTH OF THE AREA WHILE A WEAK SYSTEM CLIPS
THE MOUNTAINS AND HIGHLANDS. WILL CONTINUE LOW PRECIPITATION CHANCES
INTO EARLY NEXT WEEK...ANYTHING THAT SHOULD FALL WOULD REMAIN LIGHT
INTO MONDAY. GFS AND ECMWF SHOWING A SLIGHTLY STRONGER SHORTWAVE
TROUGH ARRIVING TUESDAY WHICH MAY PRODUCE BETTER CHANCES FOR
PRECIPITATION.

VALLE

&&

.AVIATION...

ANOTHER COLD FRONT WILL ARRIVE TODAY. THIS WILL BRING ANOTHER ROUND
OF PRECIPITATION TO THE AREA THIS MORNING WITH SHOWERS DEVELOPING
THIS AFTERNOON. MVFR CONDITIONS ARE POSSIBLE WITH THE BATCH OF
PRECIPITATION THIS MORNING. STRONG WINDS LIKELY THIS
AFTERNOON...AFFECTING THE SNAKE PLAIN TAF SITES.

VALLE

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FROM NOON TODAY TO 9 PM MDT THIS EVENING
IDZ017-020-021.

&&