Strong thunderstorm outflow winds on August 12th downed 3 trees at a Blackfoot home. It did damage to the roof and some storage sheds.
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The episode as NWS PIH wrote it up.
Strong thunderstorm outflow winds on August 12th downed 3 trees at a Blackfoot home. It did damage to the roof and some storage sheds.
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 Aug 12, 1:22 PM MST, 33 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 222 PM MDT MON AUG 12 2013 .DISCUSSION...SERIES OF SHORTWAVES ROTATING AROUND UPPER LOW ACROSS EAST IDAHO TODAY AND INTO TUESDAY. CONVECTION HAS ALREADY FIRED EARLY THIS AFTERNOON ACROSS HIGHER TERRAIN. BELIEVE SNAKE PLAIN WILL REMAIN MAINLY DRY AT LEAST TODAY. REPEAT FOR TUESDAY AS STRONGER WAVE CURRENTLY REACHING CALIFORNIA COAST MAKES IT INTO EASTERN IDAHO. PWATS SLIGHTLY HIGHER TUESDAY WHICH SHOULD LEAD TO BETTER COVERAGE ACROSS THE REGION. THUS HAVE NUDGED UP THE POPS...LEAVING ENOUGH SUPPORT FOR RED FLAG HEADLINES FOR THE FIRE DISTRICT. UPPER RIDGE AXIS STRENGTHENS OVER EAST IDAHO WEDNESDAY INTO THURSDAY. NAM HOLDS ON TO SMALL POCKETS OF MOISTURE AND QPF OVER HIGHER ELEVATIONS EACH AFTERNOON. GFS SHOWING SOME SIGNS OF MOISTURE BUT NO QPF SO HAVE LEFT EACH AFTERNOON DRY FOR NOW. IN ADDITION...GUIDANCE PUSHES TEMPS THURSDAY BACK INTO THE MID 90S. THIS SHOULD BE ABOUT 5-7 DEGREES SHORT OF RECORDS ACROSS THE AREA. RIDGE PERSISTS INTO FRIDAY WITH CONTINUED DRY AND VERY WARM CONDITIONS. BREAKDOWN OF THE UPPER RIDGE BEGINS SATURDAY WITH GFS SLIDING A BROAD TROUGH INTO THE WESTERN STATES. BASE OF TROUGH MOVES INTO THE GREAT BASIN SATURDAY WITH ATTEMPT AT A CUT-OFF LOW. CONVECTION REMAINS FOCUSED EITHER WITH THIS FEATURE MAINLY OVER NEVADA/UTAH OR FURTHER NORTH OVER THE CENTRAL MOUNTAINS AS TROUGH AXIS MOVES THROUGH WASHINGTON. TROUGH MAINLY OVERHEAD ON SUNDAY...WITH CONTINUED THREAT OF CONVECTION HIGHER ELEVATION AREAS. DMH && .AVIATION...THUNDERSTORMS HAVE DEVELOPED IN CENTRAL IDAHO MOUNTAINS AS WELL AS SOUTHEAST IDAHO. VFR CONDITIONS PREVAIL WITH HIGH BASED CLOUD BOTTOMS BUT EXPECT GUSTY WINDS AS STORMS PULSE. EXPECT THESE CONDITIONS TO CONTINUE THROUGH 8 PM. TOMORROW IS A BETTER CHANCE FOR WIDE SPREAD THUNDERSTORMS BUT SHOULD KEEP VFR CONDITIONS BUT WITH GUSTY WINDS. PRESTON && .FIRE WEATHER...UPPER LOW POSITIONED ALONG THE WASHINGTON COAST THIS AFTERNOON AS THE NEXT UPSTREAM STORM SYSTEM WAS VISIBLE SHIFTING EAST ACROSS THE PACIFIC. SE IDAHO REMAINS UNDER A FAIRLY DRY SW FLOW ALOFT WITH LINGERING INSTABILITY CONTINUING OVER THE CNTRL MOUNTAINS AND IDAHO PANHANDLE. SEVERAL WEAK DISTURBANCES WERE CLEARLY VISIBLE IN SATELLITE IMAGERY WHICH MAY HELP TO INITIATE CONVECTION ACROSS THE REGION TODAY AND TUESDAY. THE FIRST FEATURE WAS LIFTING NE OUT OF NRN CALIFORNIA AND IS EXPECTED TO CONTINUE ITS NE TREK CLIPPING THE CNTRL MOUNTAINS THIS AFTERNOON. INSTABILITY ALSO ALLOWING STORMS TO DEVELOP IN SOUTHEAST PARTS. THE 00Z...06Z..12Z NAM RUNS APPEAR TO BE GENERATING GREATER THUNDERSTORM POTENTIAL ACROSS THE SNAKE PLAINS AND SE HIGHLANDS TUESDAY AFTERNOON/EVE AS A RESULT OF A FAIRLY WELL DEFINED SYSTEM CURRENTLY ROTATING INTO THE NRN/CNTRL CALIFORNIA COASTAL WATERS. THIS FEATURE MAY PROVIDE THE DYNAMICS NECESSARY FOR THUNDERSTORM ACTIVITY ACROSS THE REGION TUESDAY BUT THE AVAILABILITY OF AMPLE MOISTURE IS A LINGERING QUESTION. DUE TO ONGOING FIRES AND LOW RH COMBINED WITH DRY THUNDERSTORM POTENTIAL RED FLAG WARNINGS WILL BE ISSUED TOMORROW FOR MOUNTAIN AREAS. STABLE CONDITIONS DEVELOPING ACROSS THE REGION WEDNESDAY/THURSDAY AS THE AFOREMENTIONED PAC TROUGH APPROACHES THE COAST AND THE RIDGE EXPANDS NORTH ACROSS THE REGION. THE RIDGE BREAKS DOWN AND THE TROUGH SWEEPS INLAND FRIDAY/SATURDAY WITH A FRONTAL PASSAGE ANTICIPATED SOMETIME SATURDAY AFTERNOON/EVE FOR POTENTIAL HIGH IMPACT WEATHER EVENT. PRESTON/ HUSTON && .AIR STAGNATION...WILDFIRE SMOKE HAS PROMPTED IDAHO DEQ OFFICES TO ISSUE AIR QUALITY ADVISORY FOR PORTIONS OF CENTRAL MOUNTAINS. HAVE ADDED SMOKE TO CUSTER AND BLAINE COUNTIES...AND ALSO INCLUDED AREA IN VICINITY AND DOWNSTREAM OF STATE FIRE NEAR SAMARIA. WILL EXPECT AIR QUALITY ISSUES TO CONTINUE AS LONG AS FIRES CONTINUE TO BURN. DMH && .PIH WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING IDZ413-427. RED FLAG WARNING FROM 10 AM TO 9 PM MDT TUESDAY IDZ413-427. RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING IDZ422-476. RED FLAG WARNING FROM 10 AM TO 9 PM MDT TUESDAY IDZ422-475-476. RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING IDZ475. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 422 AM MDT MON AUG 12 2013 IDZ017>025-031-032-131030- 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- 422 AM MDT MON AUG 12 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT HE THREAT OF SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING HAS PROMPTED A RED FLAG WARNING FOR FIRE ZONE 475 AND THE NORTHERN PORTION OF ZONE 476. ADDITIONALLY GUSTY SURFACE WINDS AND LOW HUMIDITY HAS RESULTED IN A RED FLAG WARNING FOR FIRE ZONES 413...422...427 AND THE SOUTHERN PORTION OF 476. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE THREAT OF THUNDERSTORMS WILL RESULT IN A HIGHER FIRE RISK TUESDAY AFTERNOON FOR THE CENTRAL MOUNTAIN AND SOUTHEAST HIGHLAND FIRE ZONES. FRIDAY AND PARTICULARLY SATURDAY LOOK FOR INCREASED FIRE RISK FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY ACROSS THE AREA. .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.
The Pocatello radar (KSFX), 28 km away, was scanning. The volume nearest the first event began at 20:54 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm outflow winds on August 12th downed 3 trees at a Blackfoot home. It did damage to the roof and some storage sheds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2013Every state in 2013This day in weather historyWarnings in Idaho, August 2013
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: 475788.