Area Forecast Discussion
Issued by NWS Pocatello, ID

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
000
FXUS65 KPIH 272015
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
215 PM MDT WED APR 27 2016

.SHORT TERM...THIS AFTERNOON SHOWERS ORIENTED ALONG A DEFORMATION
LINE FROM NEAR STANLEY TO DOWNEY MAY BEGIN TO LOOSE SOME OF THE
FORCING THIS EVENING AS THE NEW DISTURBANCE CROSSES CALIFORNIA
INTO NEVADA. KEPT A  SLIGHT CHANCE OF THUNDERSTORMS IN THE
FORECAST ALONG THAT LINE AND IN CASSIA COUNTY. LOW TRACKS THROUGH
NORTHERN ARIZONA ON THURSDAY AND THE SOUTH CENTRAL AND CARIBOU
HIGHLANDS SHOULD BECOME THE NEW FOCUS FOR SHOWERS AND ISOLATED
THUNDERSTORMS. BY THURSDAY EVENING...ANOTHER DISTURBANCE WILL
BEGIN TO ENTER WASHINGTON/OREGON AND SLOWLY MOVE TOWARDS NEVADA
FRIDAY/FRIDAY NIGHT. THIS WILL BRING MORE SCATTERED SHOWERS
ACROSS SOUTHEAST IDAHO THAT CONTINUE INTO SATURDAY AS THE NEW LOW
DROPS TO ABOUT LAS VEGAS AND WRAP AROUND MOISTURE BEGINS TO
DEVELOP ACROSS IDAHO. SNOW LEVELS CHANGE LITTLE...ABOUT 7000 TO
7500 FEET ELEVATION. ACCUMULATION OF 1 TO 2 INCHES ON THE HIGHER
TERRAIN PER EACH DAY. MEAN WHILE...VALLEY TEMPERATURES SLIP INTO
THE LOWER TO MIDDLE 60S. RS

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT. BOTH THE GFS
AND ECMWF MODELS CONTINUE TO SHOW AN UPPER LEVEL LOW EXITING THE
AREA SATURDAY. WITH LINGERING MOISTURE AND INSTABILITY LOOK FOR
SCATTERED SHOWERS SATURDAY MAINLY ACROSS OUR SOUTHERN AREAS. LIGHT
MOUNTAIN SNOW IS EXPECTED AS WELL SATURDAY THROUGH SATURDAY EVENING.
WITH AMPLE RESIDUAL MOISTURE EXPECT MOSTLY AFTERNOON MOUNTAIN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS SUNDAY THROUGH TUESDAY.
HIGH PRESSURE RIDGING FINALLY STARTS TO DRY THE AREA OUT BY
WEDNESDAY. TEMPERATURES WILL BE NEAR NORMAL TO SLIGHTLY BELOW NORMAL
THROUGH SUNDAY BEFORE RISING TO ABOVE NORMAL TUESDAY AND EVEN MORE
SO ON WEDNESDAY. WYATT

&&

.AVIATION...EXPECT VICINITY SHOWERS WITH A REMOTE CHANCE OF A
VICINITY THUNDERSTORM THIS AFTERNOON INTO EARLY EVENING FOR ALL TAF
SITES. EXPECT MVFR CIGS WITH SHOWERS ON STATION OTHERWISE LOOK FOR
VFR CONDITIONS AND OVERALL LIGHT WINDS TO PREVAIL. WYATT

&&

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

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.