Area Forecast Discussion
Issued by NWS Boise, ID

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000
FXUS65 KBOI 230928
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
327 AM MDT WED APR 23 2014

.SHORT TERM...WEAK UPPER TROUGH WILL PASS THROUGH NRN ZONES TODAY
WITH MORE LIGHT RAIN AND SNOW SHOWERS...THEN A STRONGER PACIFIC
TROUGH WILL BRING WIDESPREAD PCPN INLAND IN A WARM-ADVECTION PATTERN
THURSDAY...SNOW LEVEL RISING TO 6500 FEET MSL NORTH TO 7500 FEET
SOUTH LATE THURSDAY.  WITH INCREASINGLY STRONG WSWLY FLOW ALOFT AND
SLIGHTLY NEGATIVE LIFTED INDEX WE CONTINUE TO FORECAST A SLIGHT
CHANCE OF THUNDERSTORMS ON THE IDAHO SIDE THURSDAY AFTERNOON. BREEZY
WSWLY WINDS TODAY IN THE CENTRAL SNAKE BASIN...ELSEWHERE LIGHT TO
MODERATE WESTERLY WINDS...DECREASING TONIGHT...THEN GENERALLY LIGHT
SOUTHEASTERLY THURSDAY.

.LONG TERM...THURSDAY NIGHT THROUGH WEDNESDAY...ALL THE MODELS
CONTINUE THE COOL AND WET PATTERN INTO THE WEEKEND THAT THEY HAVE
BEEN ADVERTISING THE LAST SEVERAL DAYS. ONLY CHANGES IN THE EXTENDED
PERIOD WERE TO INCREASE THE PROBABILITY OF PRECIPITATION FRIDAY
ALONG WITH ADDING SLIGHT CHANCE OF THUNDERSTORMS FRIDAY AFTERNOON
ACROSS ALL THE IDAHO ZONES DUE TO EXITING JET TO THE NORTH ACROSS
BAKER AND VALLEY COUNTIES...ALONG WITH A SECONDARY JET MOVING
NORTHWARD FROM NEVADA INTO IDAHO. SREF SHOWING 10-20 PROBS OF
THUNDER ACROSS THIS SAME AREA WITH SMALL PROBS OF 100-200 CAPE.

ECM AND GFS ALSO CONTINUE TO SHOW THE WEATHER PATTERN CHANGING BY
MONDAY THROUGH WEDNESDAY AS A LARGE RIDGE AMPLIFIES INTO THE WEST
COAST AND PACIFIC NORTHWEST AREA. DRY WITH ABOVE NORMAL TEMPERATURES
EXPECTED AT THAT TIME.

&&

.AVIATION...LOCAL MVFR IN FOG DEVELOPING ACROSS KMYL THIS MORNING
OTHERWISE VFR. RAIN AND SNOW SHOWERS MOVE BACK INTO THE KBKE AND
KMYL AREA LATER THIS MORNING WITH KMYL BECOMING IFR-MVFR THROUGH
MOST OF THE DAY WITH MTNS OBSCURED. SFC WINDS WEST TO NORTHWEST 5 TO
10 KTS...EXCEPT 15 KTS IN KJER/KTWF. SFC WIND GUSTS TO 20KTS. 10 KFT
WINDS WEST TO NORTHWEST 15 TO 20 KTS SHIFTING TO WEST OR SOUTHWEST
AFTER 00Z.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...LC
LONG TERM....CR
AVIATION.....CR


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