Funnel Cloud in Idaho, May 15, 2015

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
156 PM MDT FRI MAY 15 2015

.SHORT TERM...TONIGHT THROUGH MONDAY. LOW PRESSURE CIRCULATION
OVER EAST CENTRAL NEVADA THIS AFTERNOON TRACKING SLOWLY TO THE
EAST AND NORTHEAST TONIGHT. SATELLITE IMAGERY CURRENTLY SHOWS A
BAND OF SHOWERS MOVING THROUGH THE CENTRAL MOUNTAINS AND ANOTHER
OVER NORTHERN UTAH MOVING INTO THE SOUTH CENTRAL HIGHLANDS AND THE
EASTERN HIGHLANDS...BY SATURDAY MORNING THIS BAND ALSO SWINGS INTO
THE CENTRAL MOUNTAINS. SEEING A LITTLE BIT OF HEATING OVER THE
SNAKE PLAIN THIS AFTERNOON...THEREFORE INCLUDED A SLIGHT CHANCE OF
THUNDERSTORMS IN THE FORECAST THIS EVENING. BY SATURDAY AFTERNOON
THE LOW WILL MOVE TO ABOUT THE SOUTHERN MONTANA BORDER WITH PLENTY
OF WRAP AROUND MOISTURE AND A UPPER LEVEL TROUGH SWINGING OVER
SOUTHEAST IDAHO. AIRMASS REMAINS MARGINALLY UNSTABLE TO SUPPORT
ISOLATED THUNDERSTORMS. PRECIPITATION OF .2 TO .4 INCH POSSIBLE IN
THE UPPER SNAKE PLAIN AND HIGHLANDS...LESS FURTHER SOUTH.
SUNDAY...THE LOW CONTINUES EAST INTO THE DAKOTAS...WRAP AROUND
MOISTURE STILL EXTENDS OVER SOUTHEAST IDAHO...BUT THE AIRMASS IS
LESS UNSTABLE OVER THE SNAKE PLAIN AND UPPER SNAKE HIGHLANDS.
MENTION OF THUNDERSTORMS WAS DROPPED IN THAT AREA...AND A SLIGHT
CHANCE WORDING CONTINUED IN THE CENTRAL MOUNTAINS AND SOUTHERN
HIGHLANDS. MOUNTAINS COULD SEE 2 TO 6 INCHES OF SNOW THROUGH THE
WEEKEND...BUT MOST ALL OF IT WILL BE ABOVE 8000 FEET. EARLY MONDAY
THERE IS A BRIEF TRANSITION PERIOD BETWEEN ONE LOW MOVING FURTHER
AWAY AND A NEW LOW CROSSING CALIFORNIA WITH THE POSSIBILITY OF
ISOLATED TO SCATTERED THUNDERSTORMS BY AFTERNOON. RS

.LONG TERM...MONDAY NIGHT THROUGH FRIDAY.
SERIES OF UPPER LEVEL LOWS AND TROFS WILL CONTINUE TO WORK THORUGH
IDAHO THROUGH ALL OF NEXT WEEK.   GENERALLY EXPECT TREND OF SHOWERS
AND THUNDERSTORMS TO CONTINUE ALL THE WAY THROUGH NEXT FRIDAY.  HIGH
TEMPERATURES WILL BE NEAR NORMAL THROUGH THE PERIOD WITH OVERNIGHT
LOWS EXPECTED TO BE ABOVE NORMAL WITH THE EXTENSIVE MOISTURE IN
PLACE.  MADE LITTLE ADJUSTMENT TO PRECIPITATION CHANCES IN GRIDS
WHICH ARE ABOVE NORMAL THROUGH THE WEEK.
GK

&&

.AVIATION...HAVE TEMPO SHOWERS AND THUDNERSTORMS AT ALL TAF SITES
THIS AFTERNOON AND EARLY EVENING.   HAILEY HAS BEEN SLOW TO CLEAR
OUT TODAY AND KEPT IN MVFR CEILINGS THIS AFTERNOON.  THE CHANCE FOR
SHOWERS AND THUNDERSTORMS WILL CONTINUE ON SATURDAY.  COULD SEE WIND
GUSTS IN THE 30 TO 40 KNOT RANGE IN OR NEAR A THUNDERSTORM TODAY.
GK
&&

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