Several thousand dollars worth of damage due to flooding from extensive rainfall during the week. In Oneida County highways 36 and 38 damaged with mud and debris.
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.
Several thousand dollars worth of damage due to flooding from extensive rainfall during the week. In Oneida County highways 36 and 38 damaged with mud and debris. Old Highway 191 near Malad Summit covered with mud and debris also. In Lincoln County two rural houses flooded along with several road washouts.
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 Jan 21, 2:23 AM MST, 3 hours 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 230 AM MST FRI JAN 20 2012 .SHORT TERM...TODAY THROUGH MONDAY NIGHT. THE LATEST SATELLITE IMAGERY WAS SHOWING A CONSIDERABLE AMOUNT OF MOISTURE SPREADING INTO THE NRN GREAT BASIN AHEAD OF THE NEXT INCOMING PAC TROUGH CURRENTLY POSITIONED ALONG THE NW COAST. A WELL DEFINED SHORT-WAVE FEATURE WAS ALSO NOTED ROTATING THROUGH THE BASE OF THE TROUGH INTO NRN CALIFORNIA. THE REGIONAL RADAR LOOP WAS SHOWING WIDESPREAD MODERATE PRECIPITATION RETURNS THROUGHOUT SRN IDAHO IN THIS MOIST SW FLOW. THE MODELS INDICATE THAT AS THE NRN CALIFORNIA SHORT-WAVE SHEARS EAST ACROSS NRN NEVADA THIS AFTERNOON...THE MOIST SW FLOW WILL BE SHUNTED FURTHER SOUTH INTO UTAH WITH A GENERAL DECREASE IN PRECIPITATION ACROSS SRN IDAHO LATE THIS AFTERNOON/EVENING. AT THE SAME TIME...A SURFACE FRONT WILL TRACK ACROSS THE REGION WITH AN INCREASING SURFACE PRESSURE GRADIENT AND WINDS THROUGHOUT THE SNAKE RIVER PLAIN THIS AFTERNOON/EVENING. A COOLER/DRIER AIRMASS WILL ALSO FILTER INTO THE REGION BEHIND THE FRONT THIS AFTERNOON SUPPORTING LOWERING SNOW LEVELS INTO THE SNAKE PLAIN LATE THIS AFTERNOON. THE UPPER TROUGH CLEARS THE REGION LATE THIS EVENING WITH SCATTERED SHOWERS LINGERING ACROSS THE HIGHLANDS IN AN INCREASINGLY DRY NW FLOW ALOFT. THE CURRENT SNOW WARNINGS/ADVISORIES FOR THE MOUNTAINS STILL LOOK GOOD AS DOES THE WIND ADVISORY FOR THE SNAKE RIVER PLAIN/ERN MAGIC VALLEY LATE THIS AFTERNOON/EVENING. THE LATEST MESONET OBSERVATIONS ARE SHOWING SOME ISOLATED/ELEVATED GAP WINDS EXITING THE SRN HIGHLANDS AND WE WILL HANDLE THIS WITH A SPECIAL WEATHER STATEMENT DUE TO THE LIMITED EXTENT OF THE IMPACT REGION. THUS NO REAL CHANGES TO THE GOING HIGHLIGHTS. THE LEADING EDGE OF A SECOND PAC STORM SYSTEM SPREADS INTO THE REGION LATE SUNDAY AFTERNOON/NIGHT AND CONTINUES THROUGH THE DAY MONDAY AS THE UPPER TROUGH SWEEPS THROUGH THE REGION. HAVE RAMPED PRECIP POTENTIAL UPWARDS FOR THIS EVENT IN GOING FORECAST ALTHOUGH SNOW TOTALS LOOK TO FALL BELOW WARNING LEVELS AT THIS TIME. HUSTON .LONG TERM...TUESDAY THROUGH SATURDAY. EXPECT DRY WEATHER WITH NEAR NORMAL TEMPERATURES ON TUESDAY AS THE AREA WILL BE IN BETWEEN SYSTEMS. THE NEXT STORM WILL ARRIVE LATE TUESDAY NIGHT OR WEDNESDAY. MOISTURE FROM THIS SYSTEM WILL PERSIST INTO THURSDAY NIGHT WHEN A COLD FRONT SHOULD PUSH THE PRECIPITATION SHOULD OF THE REGION. THIS LOOKS LIKE ANOTHER WARM SYSTEM WITH ACCUMULATING SNOW LEVELS HANGING AROUND 5000-5500 FEET. MODELS ARE KEEPING MOST OF THE PRECIPITATION IN THE MOUNTAINS AND HIGHLANDS AT THIS POINT. LOOKS LIKE THE BEST CHANCE FOR PRECIPITATION IN THE SNAKE PLAIN MAY BE THURSDAY WHEN THE COLD FRONT PUSHES THROUGH THE AREA. SNOW AMOUNTS MAY NOT BE AS IMPRESSIVE AS PREVIOUS SYSTEMS...BUT STILL RELATIVELY HEAVY. CENTRAL MOUNTAINS COULD SEE AN ADDITIONAL 6 TO 15 INCHES WHILE THE EASTERN HIGHLANDS COULD SEE UP TO 8 INCHES. EXPECT A BREAK ON FRIDAY AS A SHORTWAVE RIDGE SLIDES THROUGH THE REGION. ANOTHER SHORTWAVE WILL ARRIVE NEXT WEEKEND...RIGHT NOW LOOKS LIKE MOST OF THE PRECIPITATION WILL BE ELEVATED. VALLE && .AVIATION...ANOTHER WET SYSTEM IS MOVING THROUGH THE REGION. EXPECT WIDESPREAD LOW CEILINGS IN THE SNAKE PLAIN AND LIFR CONDITIONS AROUND KSUN WHILE THE RAIN/SNOW MOVES THROUGH THE AREA THIS MORNING. EXPECT A SLOW IMPROVEMENT LATER THIS AFTERNOON AS THIS SYSTEM PULLS AWAY FROM THE AREA. IMPROVEMENT SHOULD BE MORE NOTICEABLE TONIGHT. WINDY CONDITIONS EXPECTED IN THE SNAKE PLAIN TODAY...NOT SO MUCH AROUND KSUN. VALLE && .HYDROLOGY...SOME LOCALIZED SHEET FLOODING HAS BEEN REPORTED IN THE 24-48 HOURS AS RAIN IN SOME AREAS HAS FALLEN ON TOP OF SNOW OR AT LEAST FROZEN GROUND. THE THREAT FOR THIS WILL CONTINUE...ESPECIALLY AT MID ELEVATIONS...AS THE NEXT STORM ROLLS THROUGH TODAY. RISING LEVELS IN SMALLER CREEKS AND STREAMS ARE ALSO POSSIBLE WITH A COMBINATION OF SNOW MELTING AND RAINFALL. THIS THREAT SHOULD DECREASE SIGNIFICANTLY BEGINNING TOMORROW NIGHT AS COLDER AIR RETURNS TO EASTERN IDAHO. KEYES && .PIH WATCHES/WARNINGS/ADVISORIES... WIND ADVISORY FROM 2 PM TODAY TO MIDNIGHT TONIGHT IDZ017-020-021. WINTER STORM WARNING CONTINUES THROUGH MIDNIGHT TONIGHT ABOVE 5500 FEET FOR IDZ019-023-025. WINTER STORM WARNING CONTINUES THROUGH MIDNIGHT TONIGHT ABOVE 5500 FEET FOR IDZ022-024. WINTER STORM WARNING CONTINUES THROUGH MIDNIGHT TONIGHT FOR IDZ018-031. WINTER WEATHER ADVISORY CONTINUES THROUGH MIDNIGHT TONIGHT IDZ032. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 300 AM MST SAT JAN 21 2012 IDZ017>025-031-032-221300- 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- 300 AM MST SAT JAN 21 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT WINTER STORM WARNINGS HAVE BEEN POSTED FOR THE MOUNTAINS AND A WIND ADVISORY FOR THE SNAKE RIVER PLAIN/EASTERN MAGIC VALLEY THROUGH MIDNIGHT TONIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE NEXT STORM SYSTEM WILL ARRIVE SUNDAY NIGHT/MONDAY WITH A THIRD FOLLOWING WEDNESDAY/THURSDAY. AT THIS TIME...THE SUNDAY NIGHT/MONDAY STORM LOOKS COLD ENOUGH TO BE MOSTLY SNOW ACROSS THE REGION BUT ACCUMULATIONS ARE EXPECTED TO FALL BELOW WARNING LEVELS...GENERALLY 5-10 INCHES IN THE MOUNTAINS AND 1-2 INCHES IN THE SNAKE PLAIN/MAGIC VALLEY. TEMPERATURES WARM AGAIN FOR THE THIRD SYSTEM WITH SNOW LEVELS GENERALLY RUNNING SOMEWHERE IN THE NEIGHBORHOOD OF 5500 FEET MSL. .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.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 524 AM MST SAT JAN 21 2012 IDZ017-020>022-212200- EASTERN MAGIC VALLEY-UPPER SNAKE RIVER PLAIN- LOWER SNAKE RIVER PLAIN-SOUTH CENTRAL HIGHLANDS- INCLUDING THE CITIES OF...BURLEY...RUPERT...SHOSHONE...CAREY... IDAHO FALLS...REXBURG...RIGBY...POCATELLO...BLACKFOOT... FORT HALL...AMERICAN FALLS...MALAD CITY...OAKLEY...ROCKLAND 524 AM MST SAT JAN 21 2012 ...NUISANCE FLOODING POTENTIAL... A QUARTER TO THREE-QUARTERS OF AN INCH OF LIQUID PRECIPITATION FELL ON FROZEN GROUND WITHIN THE SNAKE RIVER PLAIN...EASTERN MAGIC VALLEY...AND LOWER VALLEYS OF THE SOUTH CENTRAL HIGHLANDS OVERNIGHT. ALTHOUGH MAIN STEM RIVERS HAVE ONLY SHOWN MINOR RISES...LOW LYING AREAS AND AGRICULTURE LANDS MAY EXPERIENCE CONSIDERABLE PONDING OF WATER. IN ADDITION...HOME AND BUSINESS OWNERS MAY WANT TO INSPECT WINDOW WELLS AND CELLARS FOR POTENTIAL NUISANCE FLOODING AND TAKE APPROPRIATE ACTION TO MITIGATE THE IMPACT UNTIL TEMPERATURES FALL BELOW FREEZING TONIGHT.
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Several thousand dollars worth of damage due to flooding from extensive rainfall during the week. In Oneida County highways 36 and 38 damaged with mud and debris. Old Highway 191 near Malad Summit covered with mud and debris also.
Several thousand dollars worth of damage due to flooding from extensive rainfall during the week. In Lincoln County two rural houses flooded along with several road washouts. Much of 420N washed out along with 720N 825 E and several BLM roads. Several roads damaged in the city of Shoshone.
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, January 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: 361861, 361864.