Flash Flood Warning 28, NWS Pocatello, ID

000 
WGUS75 KPIH 262108
FFSPIH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
308 PM MDT FRI JUN 26 2009

IDC005-262145-
/O.CON.KPIH.FF.W.0028.000000T0000Z-090626T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BANNOCK ID-
308 PM MDT FRI JUN 26 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MDT FOR
CENTRAL BANNOCK COUNTY...

AT 305 PM MDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
THE WARNED AREA.  WATER UP TO THREE FEET DEEP WAS REPORTED CROSSING 
BANNOCK HIGHWAY NEAR INDIAN HILLS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO POCATELLO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
PORTNEUF RIVER...POCATELLO CREEK...RAPID CREEK...INMAN CREEK...GIBSON
JACK CREEK...LOWER ROCK CREEK...MIDNIGHT CREEK...MARSH CREEK...MINK
CREEK...SOUTH FORK POCATELLO CREEK...NORTH FORK POCATELLO CREEK...
MOONLIGHT CREEK...SOUTH FORK ROSS FORK...SAWMILL CREEK...JACKSON
CREEK...NORTH FORK RAPID CREEK...SPIDER CREEK...NORTH FORK PEBBLE
CREEK...THIRTY DAY CREEK...TRAIL CREEK...CITY CREEK...MICHAUD
CREEK...CRYSTAL CREEK AND CORRAL CREEK.

&&

LAT...LON 4274 11249 4276 11249 4279 11249 4280 11251
      4281 11251 4287 11251 4294 11222 4282 11214
      4278 11214

$$

HUSTON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
1114 AM MDT FRI JUN 26 2009

.UPDATE...MINOR ADJUSTMENTS WERE MADE FOR CONVECTION DEVELOPING
VICINITY OF A QUASI STATIONARY FRONTAL BOUNDARY NEAR CHALLIS. THE
UPPER TROUGH AXIS WILL ADVANCE TO NEAR DICKEY IN THE NEXT 3 HOURS.
RS

&&

.PREV DISCUSSION... /ISSUED 1012 AM MDT FRI JUN 26 2009/

UPDATE...SATELLITE IMAGERY SHOWS THE PUSH OF MONSOON MOISTURE
ADVANCING EAST INTO WYOMING AND WITH IT THE MAIN THREAT OF RAIN
FALL. THE UPPER LEVEL TROUGH AXIS TO THE WEST WILL CROSS THE
EASTERN HIGHLANDS AROUND 6 OR 7 PM THIS EVENING. SATELLITE
DERIVED PRECIPITABLE WATER TAPPERS FROM NEAR ONE INCH TO ABOUT A
HALF INCH TOWARDS TWIN FALLS SO CONVECTION THIS AFTERNOON WILL
BRING LESS OF A THREAT OF RAIN. SMALL HAIL AND GUSTS TO AROUND 45
MPH REMAIN POSSIBLE WITH THUNDERSTORMS. THE HEAVIEST RAIN FALL THIS MORNING WAS
NEAR IRWIN WHERE A REMOTE SENSOR REPORTED A HALF INCH. SO FAR WE
HAVE NO REPORTS OF RUN OFF OR FLOODING PROBLEMS AND THERE DOES NOT
APPEAR TO BE LOCAL RISES IN RIVER LEVELS. RS

PREV DISCUSSION... /ISSUED 316 AM MDT FRI JUN 26 2009/

DISCUSSION...UPPER LOW IN SOUTHWESTERN CANADA EXPECTED TO PUSH A
COLD FRONT THROUGH THE AREA THIS MORNING. MEANWHILE LOW IN
SOUTHERN CALIFORNIA/NEVADA IS PUMPING A SWATH OF MOISTURE OVER
UTAH AND SOUTHEASTERN IDAHO. THIS ACTIVITY IS EXPECTED TO LIFT
NORTHWARD AND FOCUS PRIMARILY ON THE SOUTHERN AND EASTERN
HIGHLANDS AND SNAKE PLAIN. PRECIPITABLE WATER AMOUNTS CONTINUE TO
RUN HIGH...PEAKING AT AROUND 1 INCH LATE THIS MORNING AND
AFTERNOON. EXPECT LOCALLY HEAVY DOWNPOURS AND GUSTY WINDS WITH
THUNDERSTORMS TODAY. TROUGH AXIS KICKS THROUGH THE AREA THIS
EVENING AND WILL RAPIDLY DRY OUT THE REGION FROM WEST TO EAST
TONIGHT. RIDGE BUILDS IN BEHIND THIS SYSTEM AND SHUTS OFF
PRECIPITATION INTO EARLY NEXT WEEK. MODELS INDICATE THAT THE DRY
WESTERLY FLOW TURNS A BIT MORE SOUTHWESTERLY ON TUESDAY. AS A
RESULT...MONSOONAL MOISTURE WRAPPING AROUND THE UPPER HIGH NUDGES
INTO EASTERN IDAHO. ISOLATED TO SCATTERED MOUNTAINS SHOWERS AND
THUNDERSTORMS RETURN TO THE FORECAST TUESDAY THROUGH THURSDAY.
TEMPERATURES CLIMB BACK TO SLIGHTLY ABOVE AVERAGE SUNDAY AND
BEYOND.

AVIATION...MONSOON MOISTURE WILL CONTINUE TO FUEL THUNDERSTORMS...
BUT MAINLY IN THE SOUTHEAST HALF OF THE FCST AREA. ISOLD TSTMS WILL
REMAIN POSSIBLE OVER THE REST OF THE FCST AREA. THE TSTMS WILL TAPER
OFF THIS EVENING. VFR CONDITIONS ARE EXPECTED TO PREVAIL TODAY AND
TONIGHT. HEDGES

FIRE WEATHER...SCATTERED THUNDERSTORMS WILL CONTINUE INTO THE
EVENING OVER THE SOUTHEAST HALF OF THE DISTRICT...WITH ISOLATED
THUNDERSTORMS ELSEWHERE. BY SATURDAY MORNING...THE MONSOON MOISTURE
WILL MOVE OFF TO THE EAST. DRY CONDITIONS...WITH GRADUAL DECREASING
HUMIDITY WILL PREVAIL INTO NEXT WEEK AS THE OVERALL PATTERN CHANGES
TO RIDGING. HEDGES

HYDROLOGY...THE SNAKE RIVER AT SHELLEY CONTINUES JUST BELOW FLOOD
STAGE AND A FLOOD ADVISORY REMAINS IN EFFECT. SNAKE RIVER
IS JUST BELOW MODERATE STAGE AT BLACKFOOT AND IS FORECAST TO
CONTINUE TO REMAIN ABOVE ACTION STAGE FOR THE NEXT SEVERAL DAYS.
ADDITIONAL RAIN SHOWERS TODAY WILL CONTINUE TO POSE A THREAT TO
ALREADY HIGH WATER LEVELS.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FLOOD WARNING FOR THE SNAKE RIVER AT BLACKFOOT CONTINUES.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
441 AM MDT FRI JUN 26 2009

IDZ017>025-031-032-271045-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
441 AM MDT FRI JUN 26 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EPXECTED TO CONTINUE
ACROSS THE AREA THROUGH THIS EVENING. LOCALLY HEAVY
RAINFALL...PEAS SIZED HAIL AND WIND GUSTS TO 50 MPH ARE POSSIBLE
WITH THUNDERSTORMS.

AREA WATERWAYS CONTINUE TO RUN HIGH DUE TO RECENT HEAVY RAINFALL.
ADDITIONAL RAINFALL TTODAY COULD AGGRAVATE THE SITUATION. THE
SNAKE RIVER NEAR BLACKFOOT IS EXPECTED TO CONTINUE TO FLOW NEAR
MODERATE FLOOD STAGE TODAY. CONTINUE TO MONITOR THE LATEST RIVER
FORECASTS FOR UPDATES ON THIS SITUATION.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

HIGH PRESSURE IS EXPECTED TO BRING DRIER WEATHER TO THE REGION
SATURDAY THROUGH MONDAY.

.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
153 PM MDT FRI JUN 26 2009

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

0149 PM     FLASH FLOOD      1 S POCATELLO           42.86N 112.47W
06/26/2009                   BANNOCK            ID   CO-OP OBSERVER

            FLOODING NOW REPORTED ON CHEYEENE AND YAKIMA STREETS IN
            INDIAN HILLS.

&&

GWICKLUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
207 PM MDT FRI JUN 26 2009

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

0149 PM     FLASH FLOOD      2 S POCATELLO           42.85N 112.47W
06/26/2009                   BANNOCK            ID   CO-OP OBSERVER

            HEAVY FLOODING IN JUNIPER HILLS AT 2ND AND FREDRIGILL,
            JUST NORTH OF ROSS PARK.

&&

GWICKLUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
220 PM MDT FRI JUN 26 2009

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

0210 PM     HAIL             POCATELLO               42.88N 112.47W
06/26/2009  M0.25 INCH       BANNOCK            ID   NWS EMPLOYEE

            HAIL FROM PHILBIN ROAD, ALONG I-86, TO CLARK STREET. 20
            DEGREE TEMPERATURE DROP NOTED FROM AIRPORT TO PHILBIN
            ROAD.

0215 PM     HAIL             5 N PORTNEUF            42.87N 112.33W
06/26/2009  M0.25 INCH       BANNOCK            ID   TRAINED SPOTTER

            HAIL ON BUCKSKIN WITH 0.46 INCHES OF RAINFALL IN 20
            MINUTES.

&&

GWICKLUN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
224 PM MDT FRI JUN 26 2009

IDZ019-020-032-262115-
CLARK ID-JEFFERSON ID-CUSTER ID-FREMONT ID-BUTTE ID-BONNEVILLE
ID-BINGHAM ID-
224 PM MDT FRI JUN 26 2009

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
  CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO
  EXTREME SOUTHWESTERN FREMONT COUNTY IN EASTERN IDAHO
  WESTERN CLARK COUNTY IN EASTERN IDAHO
  EXTREME NORTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
  NORTHWESTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  JEFFERSON COUNTY IN SOUTHEAST IDAHO

UNTIL 315 PM MDT

AT 217 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTH OF BERENICE..MOVING EAST AT 25 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...
   NORTHWEST INL...
   MONTEVIEW...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 4360 11200 4345 11322 4387 11355 4409 11310
      4423 11285 4423 11281 4426 11280 4439 11259
      4443 11212
TIME...MOT...LOC 2023Z 267DEG 20KT 4392 11293

WYATT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
237 PM MDT FRI JUN 26 2009

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

0218 PM     HAIL             2 S POCATELLO           42.85N 112.47W
06/26/2009  M0.50 INCH       BANNOCK            ID   TRAINED SPOTTER

            MARBLE SIZE HAIL OBSERVED. CURRENTLY OBSERVING VEHICLES
            WITH SMALL DENTS ON SOUTH 5TH STREET, NEAR THE COMMON
            CENTS STORE, AND NEAR JASON AND NORA STREETS.

0220 PM     FLOOD            POCATELLO               42.88N 112.47W
06/26/2009                   BANNOCK            ID   CO-OP OBSERVER

            FLOODING AT THE SOUTH 5TH INTERCHANGE WITH I-15, TO
            INCLUDE NORA AVENUE. FIRE AND POLICE INDICATE NUMEROUS
            HOMES IN AREA FLOODED.

0229 PM     FLOOD            POCATELLO               42.88N 112.47W
06/26/2009                   BANNOCK            ID   NWS EMPLOYEE

            WATER TO HOOD OF VEHICLE ON BANNOCK HIGHWAY NEAR GOLF
            COURSE AT SOUTH END OF CITY.

&&

GWICKLUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
244 PM MDT FRI JUN 26 2009

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

0225 PM     HAIL             HOWE                    43.78N 113.00W
06/26/2009  M0.25 INCH       BUTTE              ID   CO-OP OBSERVER

            HAIL WITH VERY LITTLE ACCUMULATION. NO FLOODING IN AREA.

&&

GWICKLUN