Severe Thunderstorm Warning 23, NWS Pocatello, ID

003 
WWUS55 KPIH 081941
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
141 PM MDT FRI JUL 8 2011

IDC033-082000-
/O.CON.KPIH.SV.W.0023.000000T0000Z-110708T2000Z/
CLARK ID-
141 PM MDT FRI JUL 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR NORTH CENTRAL CLARK COUNTY...

AT 135 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 9 MILES WEST OF HUMPHREY...OR 20 MILES NORTHWEST OF DUBOIS...
MOVING EAST AT 25 MPH.

* LOCATIONS THAT COULD BE AFFECTED INCLUDE...
   HUMPHREY...
   SPENCER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7.

&&

LAT...LON 4431 11195 4436 11245 4447 11248 4448 11246
      4446 11242 4446 11239 4454 11236 4455 11222
      4454 11220 4455 11213 4453 11211 4455 11203
      4455 11198
TIME...MOT...LOC 1940Z 266DEG 22KT 4444 11235

$$

HEDGES

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
343 AM MDT FRI JUL 8 2011

.SHORT TERM...TODAY THROUGH SUNDAY.
DRYING MOVING IN FROM THE WEST BUT HAVE ENOUGH INSTABILITY TO
CONTINUE ISOLATED SHOWERS AND THUNDERSTORMS MAINLY IN THE SOUTHERN
AND SOUTHEAST HIGHLANDS THIS AFTERNOON AND EVENING. KEPT THE
NORTHWEST PART OF THE FORECAST AREA DRY. THE SHORT TERM TREND IS
FOR ANOTHER TROF TO MOVE TOWARD THE PACIFIC COAST AND FLOW ALOFT
TO TURN FROM ZONAL ON SATURDAY TO SOUTHWEST BY SUNDAY. THIS SHOULD
ALLOW MORE MOISTURE AND A BETTER CHANCE FOR SHOWERS AND
THUNDERSTORMS SUNDAY AFTERNOON AND EVENING. EXPECT NEAR SEASONAL
NORMALS TEMPERATURE WISE SATURDAY AND SUNDAY WITH SLIGHTLY BELOW
NORMALS TODAY. A LAKE WIND ADVISORY IS IN EFFECT TODAY FOR THE
AMERICAN FALLS RESERVOIR WITH BREEZY CONDITIONS BEHIND THE COLD
FRONTAL PASSAGE LAST NIGHT.
GK

.LONG TERM...MONDAY THROUGH FRIDAY.
SOUTHERLY FLOW ALOFT REMAINS THROUGH NEXT WEEK AND EXPECT ISOLATED
SHOWERS AND THUNDERSTORMS PRETTY MUCH DAILY AS SHOULD HAVE ENOUGH
MOISTURE IN THE SOUTHERLY FLOW TO AT LEAST GET ISOLATED ACTIVITY.
MAINLY HAVE CLIMATOLOGICAL PRECIPITATION CHANCES THROUGH NEXT WEEK.
TEMPERATURES SHOULD STAY NEAR SEASONAL NORMALS.
GK

&&

.AVIATION...UPPER TROUGH MOVING THROUGH THE REGION TODAY WITH
CURRENT AXIS LOCATED ROUGHLY HALF WAY THROUGH IDAHO THIS MORNING.
TIMING OF THE UPPER WAVE SHOULD PRECLUDE MOST OF EASTERN IDAHO FROM
SEEING RAINFALL TODAY. CURRENTLY ONLY ISOLATED SHOWERS AND
THUNDERSTORMS ARE FORECAST OVER THE HIGHER ELEVATIONS ALONG THE
SOUTHERN AND EASTERN HIGHLANDS. THUS VFR CONDITIONS ARE EXPECTED
MOST AREAS. HOWEVER TIGHTENED GRADIENT SHOULD ALLOW FOR BREEZY TO
LOCALLY WINDY CONDITIONS PARTICULARLY IN THE SNAKE PLAIN. AT THIS
TIME EXPECT 15-20KT SUSTAINED WINDS WITH STRONGEST AREAS IN THE ARCO
DESERT OF THE UPPER SNAKE PLAIN. WINDS SHOULD SUBSIDE AROUND SUNSET. DMH
&&

.FIRE WEATHER...THE UPPER LEVEL SYSTEM WILL CONTINUE PUSHING ACROSS
EASTERN IDAHO TODAY. ISOLATED THUNDERSTORMS REMAIN POSSIBLE TODAY IN
THE HIGHER ELEVATIONS ALONG THE UTAH AND WYOMING BORDERS. THE REST
OF THE REGION SHOULD REMAIN DRY. COOLER TEMPERATURES AND BREEZY
CONDITIONS ARE EXPECTED FOR TODAY. INCREASED SOUTHERLY FLOW IS
FORECAST TO BRING ADDITIONAL MOISTURE BACK TO EASTERN IDAHO FOR THE
WEEKEND WITH A RENEWED CHANCE FOR THUNDERSTORMS MOST AREAS. DMH
&&

.HYDROLOGY...FLOOD WARNINGS REMAIN IN EFFECT FOR THE TETON RIVER
NEAR SAINT ANTHONY...THE HENRYS FORK NEAR REXBURG...AND THE SNAKE
RIVER AT BLACKFOOT.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
LAKE WIND ADVISORY FROM NOON TODAY TO 9 PM MDT THIS EVENING
IDZ021.

FLOOD WARNINGS ARE IN EFFECT FOR THE SNAKE RIVER AT BLACKFOOT
...THE HENRYS FORK NEAR REXBURG AND TETON RIVER NEAR SAINT
ANTHONY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
415 AM MDT FRI JUL 8 2011

IDZ021-091015-
LOWER SNAKE RIVER PLAIN-
415 AM MDT FRI JUL 8 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

LAKE WIND ADVISORY IN EFFECT FROM NOON THROUGH 9 PM MDT FOR
AMERICAN FALLS RESERVOIR FOR 20 MPH SOUTHWEST WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

ISOLATED THUNDERSTORMS ARE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
116 PM MDT FRI JUL 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 PM     HAIL             DRIGGS                  43.73N 111.11W
07/08/2011  M0.25 INCH       TETON              ID   TRAINED SPOTTER

&&

CHATTINGS