Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 062018
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
218 PM MDT SUN JUL 6 2014

.DISCUSSION...THE 12Z MODELS CAME UP WITH INSTABILITY THIS AFTERNOON
NEAR MACKS INN...BUT SATELLITE IMAGERY AND LOCAL WEB CAMS SHOW
LITTLE SUPPORT FOR ANY SHOWERS. THEREFORE DID NOT INCLUDE ANY
PRECIPITATION IN THAT AREA FOR TODAY. MODELS CONTINUE TO HOLD
MONSOON MOISTURE OVER THE SOUTHWESTERN STATES BELOW A BROAD HIGH
PRESSURE RIDGE THROUGH AT LEAST TUESDAY. SOME OF THAT MOISTURE MIGHT
SLIP NORTH TO IDAHO BY WEDNESDAY AHEAD OF A DISTURBANCE MOVING INTO
BRITISH COLUMBIA. THE GFS MODEL SHOWS LITTLE CONVECTION ON WEDNESDAY
BUT PRECIPITABLE WATER VALUES ARE CLOSE TO .75 INCH...WHAT EVER
CONVECTION THERE IS MAY PRODUCE A FEW HUNDREDTHS OF AN INCH
PRECIPITATION. MODELS CONTINUE TO FAVOR DRIER CONDITIONS ON THURSDAY
...THEN MORE PRECIPITATION ON FRIDAY WITH ANOTHER PUSH OF MONSOON
MOISTURE.  RS

&&

.AVIATION...BROAD LOW-AMPLITUDE RIDGE OVER THE WEST WILL KEEP
TERMINALS VFR THROUGH PERIOD. WINDS SHOULD REMAIN LIGHT...BUT GUSTS
UP TO 20 KTS ARE POSSIBLE THIS AFTERNOON/EARLY EVENING.  HINSBERGER
&&

.FIRE WEATHER...DRY START TO THE WEEK AS A BROAD LOW-AMPLITUDE RIDGE
LIES OVER THE WEST. HUMIDITY SHOULD REMAIN LOW UNTIL WEDNESDAY WHEN
THE UPPER RIDGE SHIFTS EAST AND MONSOON MOISTURE MAKES ITS WAY BACK
INTO THE REGION. ON WEDNESDAY...EXPECT SHOWERS AND ISOLATED
AFTERNOON THUNDERSTORMS TO SPREAD ACROSS THE REGION. MOISTURE WILL
CONTINUE ACROSS SOUTHEAST IDAHO THROUGH THE WEEKEND WITH
THUNDERSTORMS REMAINING A THREAT IN THE AFTERNOON/EVENING HOURS.
HINSBERGER
&&


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

&&

$$






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