Flash Flood Warning 19, NWS Pocatello, ID

000 
WGUS75 KPIH 171959
FFSPIH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
159 PM MDT WED JUN 17 2009

IDC071-077-172100-
/O.CON.KPIH.FF.W.0019.000000T0000Z-090617T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONEIDA ID-POWER ID-
159 PM MDT WED JUN 17 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM MDT FOR
SOUTHEASTERN POWER AND NORTH CENTRAL ONEIDA COUNTIES...

AT 156 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED
AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCKLAND AND
CRYSTAL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
POCATELLO.

&&

LAT...LON 4262 11299 4280 11267 4286 11254 4250 11242
      4232 11240 4233 11299

$$

DSH

000 
WGUS55 KPIH 172045
FFWPIH
IDC071-077-180000-
/O.EXT.KPIH.FF.W.0019.000000T0000Z-090618T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE POCATELLO
245 PM MDT WED JUN 17 2009

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL ONEIDA COUNTY IN SOUTHEAST IDAHO...
  THIS INCLUDES THE CITY OF BUIST...
  SOUTHEASTERN POWER COUNTY IN SOUTHEAST IDAHO...
  THIS INCLUDES THE CITY OF CRYSTAL...

* UNTIL 600 PM MDT

* AT 241 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN AND FLASH FLOODING FROM THUNDERSTORMS OVER THE 
WARNED AREA.  RAINFALL RATES IN EXCESS OF ONE INCH PER HOUR ARE 
POSSIBLE.

LOCATIONS NEAR THE PATH OF INCLUDE...CRYSTAL AND ROCKLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
POCATELLO.

&&

LAT...LON 4262 11299 4280 11267 4286 11254 4250 11242
      4232 11240 4233 11299

$$

DSH

000 
WGUS75 KPIH 172303
FFSPIH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
503 PM MDT WED JUN 17 2009

IDC071-077-180000-
/O.CON.KPIH.FF.W.0019.000000T0000Z-090618T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONEIDA ID-POWER ID-
503 PM MDT WED JUN 17 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM MDT FOR
SOUTHEASTERN POWER AND NORTH CENTRAL ONEIDA COUNTIES...

AT 502 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE RAINFALL OVER THE WARNED AREA. THIS RAIN CONTINUES TO FALL 
ON ALREADY SATURATED GROUND...WITH A CONTINUED THREAT OF FLASH 
FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCKLAND AND
CRYSTAL

LAT...LON 4262 11299 4280 11267 4286 11254 4250 11242
      4232 11240 4233 11299

$$

DMH

000 
WGUS75 KPIH 172354
FFSPIH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
554 PM MDT WED JUN 17 2009

IDC071-077-180002-
/O.EXP.KPIH.FF.W.0019.000000T0000Z-090618T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONEIDA ID-POWER ID-
554 PM MDT WED JUN 17 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 PM MDT FOR SOUTHEASTERN
POWER AND NORTH CENTRAL ONEIDA COUNTIES...

RAINFALL RATES HAVE DECREASED SIGNIFICANTLY ACROSS THE WARNED AREA 
WITH ONLY LIGHT SHOWERS NORTHEAST OF ROCKLAND. CREEKS AND SMALL 
STREAMS WILL LIKELY RUN HIGH WITH WATER AND PONDING OF WATER IS 
LIKELY. A FLASH FLOOD WATCH REMAINS IN EFFECT.

LAT...LON 4262 11299 4280 11267 4286 11254 4250 11242
      4232 11240 4233 11299

$$

DMH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
752 AM MDT WED JUN 17 2009

.UPDATE...

UPDATED FORECAST TO INCLUDE FLOOD WATCH FOR TODAY. NUMEROUS
THUNDERSTORMS EXPECTED TODAY. SOME OF THESE THUNDERSTORMS WILL
PRODUCE HEAVY RAIN WHICH COULD RESULT IN FLASH FLOODING OF SMALL
STREAMS OR MUD SLIDES IN AREAS THAT ARE SUSCEPTIBLE.

&&

.PREV DISCUSSION... /ISSUED 322 AM MDT WED JUN 17 2009/

DISCUSSION...LATEST RADAR IMAGERY SHOWING REMNANTS OF EVENING
TSTMS CONTINUING TO CAUSE SOME SHOWERS OVER CACHE VALLEY/WASATCH
MTNS...THOUGH MOST WILL HAVE DISSIPATED NEAR DAYBREAK.  MORE
SHOWERS AND THUNDERSTORMS ON TAP TODAY AS TROUGH MOVES OVER
REGION. HAIL...BRIEF GUSTY WINDS UP TO 45 MPH...AND HEAVY DOWNPOURS
ARE EXPECTED WITH THESE STORMS. THE STORMS WILL ALSO BE RELATIVELY
SLOW MOVERS SO UNDER THE STRONGER STORMS...FLASH FLOODING MIGHT BE
POSSIBLE DUE TO EXCESSIVE RAINFALL OVER MOST AREAS FOR LAST
SEVERAL DAYS. WILL MENTION POSSIBILITY TO DAY SHIFT.

ONCE TROUGH MOVES THRU...NAM/GFS IN GOOD AGREEMENT HIGHLIGHTING
INDUCED RIDGING THAT WILL KEEP WIDESPREAD PRECIP TO A MINIMUM THURSDAY
AND FRIDAY. IN FACT...GFS KEEPS ID PRECIP FREE WHILE NAM PAINTS
SOME LIGHT SHOWERS OVER EXTREME NE ID THURSDAY. HOWEVER...DAYTIME
HEATING AND OROGRAPHIC LIFT MIGHT BE ENOUGH TO KICK OFF SOME AFTN
TSTMS SO INCLUDED SCHC TSTMS TO FORECAST FOR BOTH DAYS.

NEXT SHOT OF ENERGY WILL THEN MOVE THRU SAT MORNING CAUSING SOME
SHOWERS/TSTMS OVER MAINLY CNTRL MTNS THOUGH 6Z RUN HAS PUSHED
PRECIP FURTHER WEST THAN 0Z RUN. WILL BEAR WATCHING IF MODELS KEEP
NUDGING PRECIP FURTHER WEST. ONCE THIS DISTURBANCE MOVES OUT OF
AREA YET ANOTHER WAVE MOVES THRU SUN AFTN CAUSING MORE PRECIP AND
TSTMS. MODELS HIGHLIGHTING THIS UNSETTLED WX TO PERSIST THRU MON
AFTN. EARLY TUE MORNING ZONAL FLOW SETS UP WITH MODELS TOUTING NO
PRECIP THRU THURSDAY. RENWICK

AVIATION...SURFACE COLD FRONT IN EASTERN OREGON THIS MORNING SHOULD
MAKE A KLLJ-KTWF LINE BY 17Z. SHOWERS AND THUNDERSTORMS HAVE BEEN IN
PROGRESS ALONG AND AHEAD OF THE FRONT OVER NIGHT AND SHOULD INCREASE
AS WITH FRONT CROSSING THE CENTRAL MOUNTAINS INTO THE UPPER SNAKE
PLAIN NEAR PEAK HEATING TIME THIS AFTERNOON. MODEL SOUNDINGS SUGGEST
DOWN DRAFT WINDS ASSOCIATED WITH THUNDERSTORMS UP TO 45 MPH. LOCAL
MVFR CEILINGS AND VISIBILITY POSSIBLE WITH THUNDERSTORMS AS
PRECIPITABLE WATER VALUES ARE HIGH AND HEAVY DOWN POURS ARE
POSSIBLE. ACTIVITY SHOULD LINGER IN THE EASTERN HIGHLANDS THROUGH
MIDNIGHT WHICH WOULD MATCH TIMING OF PASSAGE OF THE UPPER LEVEL
TROUGH AXIS. RS

FIRE WEATHER...A SURFACE COLD FRONT WILL MOVE FROM EASTERN OREGON
TO ABOUT A CHALLIS TO TWIN FALLS LINE BY 1100 MDT. SHOWERS AND
THUNDERSTORMS CONTINUED IN EASTERN OREGON THROUGH LAST NIGHT AND
WILL BECOME NUMEROUS AS THE THE FRONT CROSSES THE CENTRAL MOUNTAINS
AND UPPER SNAKE PLAIN AROUND PEAK HEATING OF THE DAY. SOME
THUNDERSTORMS WILL PRODUCE WETTING RAINS WITH DOWN POURS UP TO A
HALF INCH. THUNDERSTORMS WILL LINGER IN THE EASTERN HIGHLANDS
THROUGH MIDNIGHT AS THE UPPER LEVEL LOW PRESSURE TROUGH PASSES.
THURSDAY...WESTERLY WINDS WILL BRING DRIER AIR IN FROM THE WEST.
ISOLATED THUNDERSTORMS WILL DEVELOP MOSTLY IN THE CARIBOU-TARGHEE
FOREST AREA DURING THE AFTERNOON. RS

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH THIS EVENING FOR IDZ018-022>025-031.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
557 AM MDT WED JUN 17 2009

IDZ017>025-031-032-181200-
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-
557 AM MDT WED JUN 17 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TODAY ACROSS MUCH OF IDAHO AS A COLD
FRONT MOVES ACROSS THE STATE. HAIL...STRONG WINDS...AND HEAVY
DOWNPOURS CAN BE EXPECTED IN AND AROUND THESE THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

MORE THUNDERSTORMS ARE EXPECTED SATURDAY INTO SUNDAY AS AN UPPER
LEVEL DISTURBANCE MOVES THROUGH THE GEM STATE SATURDAY FOLLOWED BY
ANOTHER SHORTWAVE SUNDAY.

.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.