Weather Service Report


684 
FXUS65 KPIH 290255
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
855 PM MDT SAT MAR 28 2015

.UPDATE...SFC GRADIENT DECREASING ACROSS EAST IDAHO AND WINDS HAVE
SUBSIDED RAPIDLY. HAVE ALREADY ALLOWED ADVISORY TO EXPIRE.
REMNANTS OF UPPER SHORTWAVE AXIS MOVING THROUGH THE REGION THIS
EVENING. A FEW CLOUDS REMAIN MAINLY IN UPPER SNAKE PLAIN AND
EASTERN HIGHLANDS. COOLEST CLOUD TOPS OVER YELLOWSTONE PARK AND
TRAJECTORY SHOULD BRING CLEARING LINE CLOSE TO WYOMING BORDER BY
MIDNIGHT. TRANSITORY RIDGE IN PLACE OVERNIGHT WITH SFC HIGH
GRADUALLY BUILDING IN SO COOLER OVERNIGHT LOWS AND EVEN FURTHER
DIMINISHED WINDS ON TAP REST OF TONIGHT. NO FURTHER UPDATES
ANTICIPATED. DMH


&&

.PREV DISCUSSION... /ISSUED 119 PM MDT SAT MAR 28 2015/ 

SHORT TERM...TONIGHT THROUGH TUESDAY.

WIND ADVISORY REMAINS IN EFFECT FOR THE SNAKE PLAIN UNTIL 8PM. A
STRONG COLD FRONT MOVED THROUGH THIS MORNING. STRONG WINDS EXIST
BEHIND THE FRONT WITH GUSTS OF 50 TO 55 MPH COMMON IN MANY
LOCATIONS THIS AFTERNOON. EXPECT WINDS TO STEADILY DECREASE THIS
EVENING AS THE FRONT QUICKLY MOVES AWAY FROM THE REGION. HAVE HAD
QUITE A BIT OF BLOWING DUST AS WELL. THE POSSIBILITY OF ROAD
CLOSURES ALONG INTERSTATE 15 AROUND ROBERTS REMAINS POSSIBLE FROM
THE BLOWING DUST.

HIGH PRESSURE WILL SETTLE INTO THE REGION AND PERSIST INTO
TUESDAY. WINDS WILL BE SIGNIFICANTLY LIGHTER FOR SUNDAY AND
MONDAY. ANOTHER COLD FRONT WILL APPROACH THE AREA ON TUESDAY.
MODELS SHOWING SOME WEAK INSTABILITY OVER THE REGION INDICATING
SOME AFTERNOON THUNDERSTORMS POSSIBLE TUESDAY AFTERNOON AS THE
FRONT MOVES THROUGH THE REGION.

VALLE

LONG TERM...TUESDAY NIGHT THROUGH SATURDAY.
GENERALLY MUCH COOLER CONDITIONS ARE EXPECTED IN THE LONG TERM 
PERIOD.  BOTH THE GFS AND EUROPEAN MODELS DROP THROUGH A SYSTEM 
THURSDAY WITH A COLD FRONT AND HAVE HIGHEST PRECIPITATION CHANCES 
THAT DAY.  EXPECT AT OR BELOW NORMAL HIGH TEMPERATURES WEDNESDAY AND 
THURSDAY AS THIS SYSTEM MOVES EAST.  MAY SEE A BIT OF WARMING AHEAD 
OF THE NEXT SYSTEM FRIDAY AND SATURDAY WITH THE EUROPEAN MUCH SLOWER 
PUSHING THE NEXT SYSTEM EAST THAN THE GFS WHICH DRIVES IT THROUGH 
SATURDAY NIGHT.     
GK

AVIATION...TUESDAY NIGHT THROUGH SATURDAY.
GENERALLY MUCH COOLER CONDITIONS ARE EXPECTED IN THE LONG TERM 
PERIOD.  BOTH THE GFS AND EUROPEAN MODELS DROP THROUGH A SYSTEM 
THURSDAY WITH A COLD FRONT AND HAVE HIGHEST PRECIPITATION CHANCES 
THAT DAY.  EXPECT AT OR BELOW NORMAL HIGH TEMPERATURES WEDNESDAY AND 
THURSDAY AS THIS SYSTEM MOVES EAST.  MAY SEE A BIT OF WARMING AHEAD 
OF THE NEXT SYSTEM FRIDAY AND SATURDAY WITH THE EUROPEAN MUCH SLOWER 
PUSHING THE NEXT SYSTEM EAST THAN THE GFS WHICH DRIVES IT THROUGH 
SATURDAY NIGHT.     
GK

&&

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

$$





Return to Home page


Western Regional Climate Center, wrcc@dri.edu