Flooding and funnel clouds reported in another heavy rain event.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PIH wrote it up.
Flooding and funnel clouds reported in another heavy rain event.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pocatello, ID wrote its last area forecast discussion before the first event at Jun 17, 6:52 AM MST, 4 hours 18 minutes earlier.
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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
1209 PM MDT WED JUN 17 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1206 PM HAIL 5 SSE KETCHUM 43.62N 114.35W
06/17/2009 M0.50 INCH BLAINE ID TRAINED SPOTTER
THUNDERSTORM IN PROGRESS. HAIL BEGAN BB-SIZE.LOCAL
FLOODING AS ESTIMATED 1/2 INCH OF RAIN HAS FALLEN IN PAST
20 MINUTES.
&&
GWICKLUNThe Pocatello radar (KSFX), 150 km away, was scanning. The volume nearest the first event began at 18:11 UTC.
3 flash flood, 1 funnel cloud. Local standard time, as filed.
One inch of rain fell in a 20 minute period over the Castle Rock burn area causing mud and debris to flow over Warm Springs Road.
A total of 0.41 inches of rain was measured 4 miles north northeast of Holbrook in a 25 minute period causing flooding on several Oneida County roads.
Funnel cloud sighted 1.5 miles west of Riverside.
Street flooding along with flooding in the courthouse was reported in St Anthony as a result of over 1 inch of rain in a 40 minute period.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2009Every state in 2009This day in weather historyWarnings in Idaho, June 2009
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 182430, 182429, 182428, 182431.