Severe thunderstorms occurred in southeast Idaho.
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.
Severe thunderstorms occurred in southeast Idaho.
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 Sep 18, 12:33 PM MST, 2 hours 51 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 133 PM MDT THU SEP 18 2014 .SHORT TERM...TONIGHT THROUGH FRIDAY. REGIONAL SATELLITE IMAGERY WAS SHOWING A SPLITTING UPPER TROUGH OVER THE PAC COAST EARLY THIS AFTERNOON. WEAK TO MODEST INSTABILITY AND MOISTURE AVAILABILITY ARE EXPECTED TO COMBINE WITH DEEP LAYER SHEAR EXTENDING FROM NE NEVADA THROUGH SW MONTANA THIS AFTERNOON TO PRODUCE SCATTERED STRONG THUNDERSTORM DEVELOPMENT. PRECIPITABLE VALUES OF .75 TO 1.00 INCHES WILL SUPPORT BRIEF HEAVY RAIN...ALTHOUGH THE FLASH FLOODING THREAT APPEARS TO BE MINIMAL AT THIS POINT DUE TO THE SPEED WITH WHICH THE CELLS WILL LIKELY BE MOVING. WINDEX VALUES UP TO 40 COMBINED WITH AMBIENT BREEZY CONDITIONS MAY PRODUCE WIND GUSTS OF 40 TO 50 MPH WITH THUNDERSTORMS THIS AFTERNOON/EARLY EVE. AT THIS POINT...THE FAVORED AREAS FOR STRONGEST DEVELOPMENT APPEARS TO BE THE MACKAY TO DILLON CORRIDOR AND MALTA TO CHESTERFIELD CORRIDOR. THE SRN PORTION OF INCOMING TROUGH SPLITS FROM THE NRN BRANCH FLOW TONIGHT AS IT DRIFTS SOUTH INTO CNTRL CALIFORNIA. THE LOCATION OF LOW AND ASSOCIATED DYNAMICS/MOISTURE WILL PROMOTE ONGOING SHOWERS/CONVECTION OVER SE IDAHO LATE TONIGHT. THE NRN BRANCH TROUGH AXIS SWEEPS THROUGH THE REGION FRIDAY BRINGING A DISTINCT DRYING TREND TO THE AREA. HUSTON .LONG TERM...FRIDAY NIGHT THROUGH NEXT THURSDAY. THE UPPER LOW DRIFTS SOUTH INTO THE SRN CALIFORNIA COASTAL AREA SATURDAY BEFORE LIFTING NE INTO NEVADA LATE SATURDAY NIGHT WITH ATTENDING PRECIPITATION SHIELD OVERSPREADING SE IDAHO SUNDAY AND CONTINUING THROUGH MONDAY AS THE LOW WORKS EAST INTO WYOMING (PER THE GFS). THE ECMWF (00Z) HAS A SIMILAR DEPICTION BUT IS MUCH MORE PROLIFIC WITH PRECIPITATION PRODUCTION. FAVORING THE GFS SOLUTION IN THIS REGARD. DRY CONDITIONS ARE EXPECTED BEHIND THE EXITING LOW AS THE NEXT PAC TROUGH SPREADS INTO THE NW COASTAL WATERS TUESDAY/WEDNESDAY. BY THURSDAY...THE MODELS BEGIN TO SHOW THE TROUGH WORKING INLAND...THE ECMWF ADVERTISING ANOTHER SPLITTING TROUGH AND THE GFS SOMEWHAT MORE CONSOLIDATED INITIALLY (THURSDAY) BUT QUICKLY TRENDING TOWARD A SPLITTING SOLUTION FRIDAY. SPLITTING THE DIFFERENCE HERE (NO PUN INTENDED) UNTIL MODELS SHOW SOME CONSOLIDATION...THUS CONTINUING CLIMO-LOOKING PRECIP POTENTIAL THURSDAY/THURSDAY NIGHT. HUSTON && .AVIATION...A STRONG UPPER JET IS BISECTING THE THE REGION THIS AFTERNOON...WHICH IS PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS...BUT CONDITIONS WILL REMAIN VFR. EXPECT SOUTHWEST WINDS GUSTING 20 TO 25 KTS IN THE SNAKE PLAIN THROUGH SUNSET. TOMORROW WILL BE DRIER WITH ANOTHER BREEZY AFTERNOON. && .FIRE WEATHER...SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGHOUT THE REST OF TODAY. BREEZY CONDITIONS WILL REMAIN IN THE SNAKE PLAIN THROUGH SUNSET. OVERNIGHT TONIGHT...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL REMAIN...MAINLY IN ZONE 413. OTHERWISE...A DRYING TREND IS EXPECTED FRIDAY THROUGH AT LEAST SUNDAY AFTERNOON. && .PIH WATCHES/WARNINGS/ADVISORIES...NONE. &&
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 217 PM MDT THU SEP 18 2014 IDZ019-020-182115- CLARK ID-JEFFERSON ID-BINGHAM ID-BUTTE ID- 217 PM MDT THU SEP 18 2014 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... EAST CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO SOUTH CENTRAL CLARK COUNTY IN EASTERN IDAHO NORTHWESTERN BINGHAM COUNTY IN SOUTHEAST IDAHO WESTERN JEFFERSON COUNTY IN SOUTHEAST IDAHO AT 212 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR SOUTHWEST INL...MOVING NORTHEAST AT 35 MPH. SMALL HAIL...BRIEF HEAVY RAIN AND WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THIS STORM AS IT MOVES TOWARDS MUD LAKE. LOCATIONS IMPACTED THROUGH 315 PM MDT INCLUDE... SOUTHEAST INL... NORTHWEST INL... MUD LAKE... LAT...LON 4412 11249 4388 11213 4341 11286 4354 11304 TIME...MOT...LOC 2016Z 222DEG 29KT 4354 11287 HUSTON
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
220 PM MDT THU SEP 18 2014
IDZ023-182115-
CARIBOU ID-BINGHAM ID-BONNEVILLE ID-
220 PM MDT THU SEP 18 2014
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
SOUTHEASTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
EAST CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
EXTREME NORTH CENTRAL CARIBOU COUNTY IN SOUTHEAST IDAHO
AT 212 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS SOUTHWEST OF PALISADES...MOVING
NORTHEAST AT 30 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER...BRIEF HEAVY RAIN AND WIND
GUSTS UP TO 50 MPH ARE POSSIBLE WITH THESE STORMS AS THEY MOVE
NORTHEAST TOWARD THE WYOMING STATE LINE.
LOCATIONS IMPACTED THROUGH 315 PM MDT INCLUDE...
PALISADES...
LAT...LON 4301 11188 4329 11156 4352 11109 4353 11107
4350 11103 4308 11104
TIME...MOT...LOC 2019Z 235DEG 29KT 4325 11146 4307 11169
4315 11124
HUSTONSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 225 PM MDT THU SEP 18 2014 IDZ019-182115- TETON ID- 225 PM MDT THU SEP 18 2014 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... CENTRAL TETON COUNTY IN SOUTHEAST IDAHO AT 218 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR DRIGGS...MOVING NORTHEAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER...BRIEF HEAVY RAIN AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IMPACTED THROUGH 315 PM MDT INCLUDE... DRIGGS... LAT...LON 4363 11121 4377 11130 4392 11104 4368 11104 TIME...MOT...LOC 2024Z 240DEG 25KT 4371 11113 HUSTON
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 231 PM MDT THU SEP 18 2014 IDZ023-182130- CARIBOU ID- 231 PM MDT THU SEP 18 2014 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... CARIBOU COUNTY IN SOUTHEAST IDAHO AT 224 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NORTH OF GRACE...MOVING NORTHEAST AT 20 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER...BRIEF HEAVY RAIN AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM AS IT MOVES NORTHEAST THROUGH 330 PM MDT. LOCATIONS IMPACTED THROUGH 330 PM MDT INCLUDE... NORTH OF GRACE AND SODA SPRINGS... NORTH OF CONDA... HENRY... LAT...LON 4302 11147 4281 11122 4252 11177 4260 11192 TIME...MOT...LOC 2029Z 223DEG 19KT 4261 11176 HUSTON
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
243 PM MDT THU SEP 18 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 PM HAIL 2 N DRIGGS 43.75N 111.11W
09/18/2014 M0.50 INCH TETON ID TRAINED SPOTTER
SPOTTER REPORTED HAIL 0.25 TO 0.50 IN DIAMETER. FELL FOR
AROUND 1 TO 2 MINUTES
&&
VPRESTONSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
411 PM MDT THU SEP 18 2014
IDZ022-023-182300-
ONEIDA ID-POWER ID-CASSIA ID-BANNOCK ID-
411 PM MDT THU SEP 18 2014
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
EAST CENTRAL CASSIA COUNTY IN SOUTH CENTRAL IDAHO
SOUTH CENTRAL BANNOCK COUNTY IN SOUTHEAST IDAHO
SOUTHEASTERN POWER COUNTY IN SOUTHEAST IDAHO
ONEIDA COUNTY IN SOUTHEAST IDAHO
UNTIL 500 PM MDT
AT 407 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES SOUTHEAST
OF IDAHOME TO 18 MILES NORTHWEST OF HOLBROOK TO SNOWVILLE..AND MOVING
NORTHEAST AT 35 MPH.
WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
SMALL HAIL...HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.
LOCATIONS IMPACTED INCLUDE...
HOLBROOK...
MALAD...
FORT HALL BANNOCK PEAK...
ROCKLAND...
ROY...
LAT...LON 4223 11305 4220 11340 4268 11283 4261 11244
4225 11212 4199 11260 4199 11268 4199 11282
TIME...MOT...LOC 2209Z 229DEG 30KT 4227 11318 4229 11295
4199 11269
JKEYESThe Pocatello radar (KSFX), 90 km away, was scanning. The volume nearest the first event began at 22:24 UTC.
2 hail. Local standard time, as filed.
One inch hail was measured from a thunderstorm 10 miles east of Lava Hot Springs near the town of Central.
One inch hail measured in Dingle.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2014Every state in 2014This day in weather historyWarnings in Idaho, September 2014
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: 544070, 544074.