High winds tore off a canopy atop gas pumps at the Valley Wide Coop store around 5 pm. It damaged two vehicles.
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.
High winds tore off a canopy atop gas pumps at the Valley Wide Coop store around 5 pm. It damaged two vehicles.
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 Apr 30, 3:08 PM MST, 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 408 PM MDT MON APR 30 2012 .UPDATE... UPDATED FORECAST TO ISSUE WIND ADVISORY FOR UPPER SNAKE PLAIN. OBSERVATION HAVE INCREASED LATE THIS AFTERNOON AND ARE NOT EXPECTED TO DIMINISH UNTIL SUNSET. VALLE && .PREV DISCUSSION... /ISSUED 150 PM MDT MON APR 30 2012/ SHORT TERM...TONIGHT THROUGH THURSDAY. A SERIES OF SHORTWAVES IN NEAR ZONAL FLOW WILL AFFECT EASTERN IDAHO THROUGH THE WEEK. THE FIRST SHORTWAVE AXIS ALREADY MAKING ITS WAY THROUGH THE PACIFIC NORTHWEST THIS AFTERNOON. MOISTURE HAS SPILLED INTO THE GREAT BASIN AND SHOWERS HAVE ALREADY FORMED OVER THE WESTERN HALF OF THE STATE AND ARE WORKING INTO THE CENTRAL MOUNTAINS PER SFC OBSERVATIONS AND RADAR IMAGERY. FIRST WEAK FRONTAL BOUNDARY MOVING THROUGH EASTERN IDAHO WITH WINDS ALREADY BEGINNING TO PICK UP ACROSS THE REGION. MAIN FRONTAL BOUNDARY STILL IN THE LEE OF THE CASCADES SHOULD RAPIDLY MOVE EAST OVERNIGHT BEHIND THIS FIRST WAVE OF PRECIP. SNOW LEVELS REMAIN HIGH SO AT BEST A FEW INCHES OF ACCUMULATION EXPECTED AT HIGHER ELEVATIONS. SFC GRADIENT TIGHTENS BEHIND THE FRONT ON TUESDAY THOUGH MUCH OF THE MID LEVEL 700MB SUPPORT HAS WEAKENED. WINDS LIKELY TO CONTINUE TO NUDGE THE LOWER END OF ADVISORY CRITERIA AND ANOTHER LAKE WIND ADVISORY MAY BE NEEDED AGAIN TOMORROW PENDING FINE TUNE ADJUSTMENT OF DIRECTION. NEXT WAVE IN THE TRAIN ARRIVES TUESDAY NIGHT...ANOTHER FAST MOVER. THIS ONE APPEARS TO BE A TAD BIT DRIER SO PRECIP MAY BE CONFINED TO HIGHER ELEVATIONS. NAM PAINTS THIS PICTURE THOUGH GFS IS A LITTLE MORE BROADBRUSHED WITH THE PRECIP. GUIDANCE CONTINUES TO PAINT ANOTHER WIND EVENT FOR WEDNESDAY WITH STRONG SURFACE GRADIENT AND CONTINUED MODERATE MID LEVEL SUPPORT. FINALLY...DEEPER SHORTWAVE TROUGH REACHES PACNW COAST BY THURSDAY MORNING. GFS AND NAM DIVERGE ON SOLUTIONS HERE. GFS BRINGS THE WAVE INTO THE COAST A LITTLE FURTHER SOUTH THAN THE NAM WHICH IS MORE AMPLIFIED YET FASTER. TRENDED TOWARD THE FASTER SOLUTION WITH THE TIMING AND KEPT POPS AT CHANCE OR BETTER LEVELS ESPECIALLY OVER THE CENTRAL MOUNTAINS. ONLY REMAINING ISSUE IS THREAT OF COLD AIR. EASTERN IDAHO NOW OFFICIALLY WITHIN GROWING SEASON TO ANY TEMPS BELOW FREEZING WARRANT HEADLINES. BEST POTENTIAL FOR COLD MORNING TEMPS WOULD BE WEDNESDAY MORNING IN THE UPPER SNAKE PLAIN. GUIDANCE BLEND PUTS THE AREA INTO THE FROST CATEGORY OF 28-32 DEGREES BUT POTENTIAL FOR GUSTY WINDS INTO THE OVERNIGHT MAY MITIGATE THESE TEMPS SOME. WILL LET NEXT COUPLE SHIFTS TRY TO FINE TUNE THAT A LITTLE MORE. DMH LONG TERM...THURSDAY NIGHT THROUGH SUNDAY. A SYSTEM WILL EXIT THE STATE THURSDAY NIGHT LEAVING EASTERN IDAHO UNDER SOUTHWEST FLOW. RAIN AND HIGH MOUNTAIN SNOW SHOWERS ARE FORECAST WITH HIGHEST CHANCES OCCURRING IN MOUNTAINOUS AREAS. AFTER THAT...THE FORECAST GETS A LITTLE TRICKY TO SAY THE LEAST. BEFORE THIS MORNING...THE ECMWF AND GFS WERE AT ODDS OVER WHAT TO DO WITH THE STORM ARRIVING OVER THE WEEKEND. THE ECMWF WAS SHOWING A CLOSED LOW THAT WILL MEANDER FOR SEVERAL DAYS OVER THE WESTERN STATES. THE GFS MOVED THE SYSTEM INTO THE PLAINS BY EARLY NEXT WEEK. THE MORNING GFS RUN NOW WANTS TO FALL IN LINE WITH THE ECMWF. IF THIS SOLUTION PANS OUT...WE WOULD BE LOOKING AT OCCASIONAL RAIN AND MOUNTAIN SNOWFALL WITH MUCH COOLER WEATHER WELL INTO NEXT WEEK. SINCE THIS IS THE FIRST RUN THAT BOTH HAVE SHOW SIGNS OF AGREEMENT...WE GENTLY NUDGED TEMPERATURES DOWNWARD TOWARD THE 40S AND 50S AREAWIDE. RAIN AND SNOW CHANCES ARE RIGHT NOW SHOWING ABOUT 10 PERCENT ABOVE CLIMATOLOGY...WITH THE BEST CHANCES IN THE MOUNTAINS UNTIL THINGS BECOME A LITTLE MORE CLEAR. KEYES FIRE WEATHER...A QUICK MOVING SYSTEM WILL BRING SHOWERS TO THE AREA THROUGH THE OVERNIGHT HOURS TO ALL TAF SITES. VFR CONDITIONS WITH DIPS INTO MVFR CONDITIONS ARE LIKELY DURING SHOWER ACTIVITY. WE WILL ALSO SEE BREEZY CONDITIONS THROUGH THE PERIOD...ESPECIALLY THROUGH THIS EVENING AND BEGINNING AGAIN TOWARD SUNRISE. KEYES && .PIH WATCHES/WARNINGS/ADVISORIES... LAKE WIND ADVISORY UNTIL 9 PM MDT THIS EVENING IDZ021. WIND ADVISORY UNTIL 9 PM MDT THIS EVENING IDZ020. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 430 AM MDT MON APR 30 2012 IDZ017>025-031-032-011300- 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- 430 AM MDT MON APR 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT VERY WINDY CONDITIONS ARE POSSIBLE STARTING LATE TONIGHT. WIND IN THE EASTERN MAGIC VALLEY AND SNAKE RIVER PLAIN COULD INCREASE TO 25 TO 35 MPH WITH GUSTS TO NEAR 50 MPH. EXPECT RAIN IN THE VALLEY AND RAIN AND SNOW IN THE MOUNTAINS OF CENTRAL AND SOUTHERN IDAHO. SNOWFALL AMOUNTS SHOULD REMAIN LIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY TUESDAY SHOULD HAVE WIND EVEN STRONGER THAN MONDAY. A WIND ADVISORY MAY BE NECESSARY FOR TUESDAY MORNING. ON TUESDAY NIGHT...AFTER THE WIND CALMS DOWN...MANY LOCATIONS IN THE EASTERN MAGIC VALLEY AND SNAKE RIVER PLAIN WILL EXPERIENCE TEMPERATURES LOWERING INTO THE 28 TO 32 DEGREE FARENHEIDT. A FREEZE WARNING MAY BE A POSSIBILITY FOR TUESDAY NIGHT. .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. MESSICK
1 high wind. Local standard time, as filed.
High winds tore off a canopy atop gas pumps at the Valley Wide Coop store around 5 pm. It damaged two vehicles.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2012Every state in 2012This day in weather historyWarnings in Idaho, April 2012
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: 379674.