Alert archive / Idaho / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 30, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at Aug 8, 2014, 6:21 PM MDT for 6 counties in Idaho. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2014, 6:21 PM MDT (00:21 UTC)
- Expired
- Aug 8, 2014, 7:00 PM MDT
- In force
- 39 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
Counties Bannock County, ID, Bingham County, ID, Blaine County, ID, Cassia County, ID, Minidoka County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 45 km from the middle of the area, began a volume at 00:23 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 00:00Z, 0.4 hours before the alert went out and 262 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3245 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Aug 8, 1:46 PM MDT, 4 hours 35 minutes earlier.
Area forecast discussion, Aug 8, 1:46 PM MDT, 4 hours 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 146 PM MDT FRI AUG 8 2014 .DISCUSSION... MOIST PATTERN CONTINUES ACROSS THE REGION. THUNDERSTORMS ARE DEVELOPING ACROSS THE MOUNTAINS AND HIGHLANDS THIS AFTERNOON. THE LOW PRESSURE SYSTEM RESPONSIBLE FOR PRODUCING WIDESPREAD THUNDERSTORMS OVER THE PAST FEW DAYS HAS MOVED EAST OF THE REGION. AS A RESULT...COVERAGE IS SOMEWHAT LOWER TODAY...MAINLY CONFINED TO THE MOUNTAINS AND HIGHLANDS. HEAVY RAIN IS STILL A POSSIBILITY WITH THESE STORMS AND A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE BEAVER CREEK BURN AREA THROUGH TONIGHT. A WEAK UPPER LEVEL SHORTWAVE TROUGH WILL MOVE THROUGH THE REGION ON SATURDAY. THIS WILL FIRE OFF SEVERAL THUNDERSTORMS ACROSS THE ENTIRE REGION SATURDAY AFTERNOON. HAVE INCREASED CHANCES BY ABOUT 10 PERCENT EVERYWHERE. DEBATING WHETHER OR NOT TO CONTINUE THE FLOOD WATCH INTO SATURDAY. THE COVERAGE APPEARS TO BE A LITTLE LESS AROUND THE SHOSHONE TO KETCHUM AREAS ON SATURDAY. WILL HOLD OFF ON EXTENDING THE FLOOD WATCH AND ALLOW MID SHIFT TO REEVALUATE. ELSEWHERE HEAVY RAIN WITH THUNDERSTORMS WILL REMAIN A STRONG POSSIBILITY. MAY GET A BIT OF A REPRIEVE ON SUNDAY AND MONDAY AS AN UPPER LEVEL RIDGE SETTLES IN OVER THE REGION. MONSOON MOISTURE WILL REMAIN IN PLACE...HOWEVER THE RIDGE WILL HELP TO SQUASH ACTIVITY FROM DEVELOPING IN MANY AREAS. BEST CHANCES FOR STORMS WILL BE IN THE MOUNTAINS...BUT COVERAGE MAY REMAIN ISOLATED. BY MIDDLE OF NEXT WEEK AN UPPER TROUGH OVER THE PACIFIC NORTHWEST WILL HELP TO ENHANCE THUNDERSTORMS COVERAGE ONCE AGAIN. COULD BE RATHER WET AGAIN FROM MIDWEEK ONWARD. VALLE && .AVIATION...ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON AND EARLY EVENING. HAVE VICINITY THUNDERSTORMS AT ALL TAF SITES. BEST CHANCE ON STATION WOULD BE SUN. EXPECT AFTERNOON CONVECTION AGAIN ON SATURDAY. WINDS WILL BE LIGHT OUTSIDE OF CONVECTIVE ACTIVITY WITH VFR CONDITIONS EXPECTED. ONLY NON VFR CONDITIONS UNDER HEAVY THUNDERSTORM RAIN. GK && .FIRE WEATHER...VERY MOIST AIR MASS CONTINUES TO PERSIST OVER SOUTHEAST IDAHO TODAY. ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS EXPECTED ACROSS THE ENTIRE REGION EARLY THIS EVENING. EXPECT THE SHOWERS AND THUNDERSTORMS TO AGAIN DEVELOP SATURDAY. RELATIVELY HIGH HUMIDITY WILL CONTINUE INTO NEXT WEEK WITH PERHAPS ANOTHER RELATIVELY WET PERIOD BY THE MIDDLE OF THE WEEK. GK && .PIH WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 11 PM MDT THIS EVENING IDZ031. &&
In the hours before
Special weather statement, Aug 8, 4:20 PM MDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
420 PM MDT FRI AUG 8 2014
IDZ018-020-031-032-082315-
BUTTE ID-BLAINE ID-CUSTER ID-
420 PM MDT FRI AUG 8 2014
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
CENTRAL BLAINE COUNTY IN CENTRAL IDAHO
SOUTHERN BUTTE COUNTY IN EAST CENTRAL IDAHO
AT 412 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS EXTENDING FROM 5 MILES NORTHWEST OF DARLINGTON
TO GROUSE TO SUN VALLEY...MOVING SOUTHEAST AT 15 MPH.
SMALL HAIL AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH
THESE STORMS...ALONG WITH HEAVY RAIN.
LOCATIONS IMPACTED THROUGH 515 PM MDT INCLUDE...
DARLINGTON...
ARCO...
LAT...LON 4366 11450 4376 11389 4396 11362 4372 11292
4344 11312 4343 11363 4346 11363 4348 11361
4342 11374 4342 11390
TIME...MOT...LOC 2219Z 298DEG 16KT 4384 11347 4364 11361
4361 11427
HUSTONLocal storm report, Aug 8, 4:23 PM MDT, 1 hour 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
423 PM MDT FRI AUG 08 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0423 PM HAIL 1 ENE KETCHUM 43.70N 114.35W
08/08/2014 E0.25 INCH BLAINE ID TRAINED SPOTTER
PEA SIZE HAIL
&&
DPHELPSLocal storm report, Aug 8, 4:39 PM MDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
439 PM MDT FRI AUG 08 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0439 PM HAIL 11 SSW OAKLEY 42.09N 113.94W
08/08/2014 E0.25 INCH CASSIA ID TRAINED SPOTTER
PEA SIZE HAIL WITH MINNOR STREET FLOODING
&&
DPHELPSSpecial weather statement, Aug 8, 4:54 PM MDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
454 PM MDT FRI AUG 8 2014
IDZ017-018-020-031-032-082345-
BUTTE ID-BLAINE ID-CUSTER ID-
454 PM MDT FRI AUG 8 2014
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
EXTREME SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
CENTRAL BLAINE COUNTY IN CENTRAL IDAHO
WEST CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO
AT 448 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES WEST OF ARCO
TO BELLEVUE...MOVING SLOWLY SOUTHEAST AT 10 MPH.
SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS...ALONG WITH HEAVY RAINFALL AND THE POTENTIAL FOR RAPID RISES
ON SMALL CREEKS AND STREAMS THROUGH 545 PM MDT.
LOCATIONS IMPACTED INCLUDE...
GANNETT...
ARCO...
PICABO...
LAT...LON 4352 11312 4350 11347 4340 11376 4327 11402
4341 11433 4360 11418 4368 11389 4375 11336
TIME...MOT...LOC 2251Z 300DEG 8KT 4365 11341 4364 11378
4355 11407 4343 11421
HUSTONSpecial weather statement, Aug 8, 5:02 PM MDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
502 PM MDT FRI AUG 8 2014
IDZ022-023-090000-
CARIBOU ID-ONEIDA ID-BINGHAM ID-BONNEVILLE ID-CASSIA ID-BANNOCK ID-
502 PM MDT FRI AUG 8 2014
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
SOUTHEASTERN CASSIA COUNTY IN SOUTH CENTRAL IDAHO
SOUTHEASTERN BANNOCK COUNTY IN SOUTHEAST IDAHO
SOUTHEASTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
SOUTHEASTERN BINGHAM COUNTY IN SOUTHEAST IDAHO
ONEIDA COUNTY IN SOUTHEAST IDAHO
WESTERN CARIBOU COUNTY IN SOUTHEAST IDAHO
AT 454 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF LOOSELY ORGANIZED THUNDERSTORMS EXTENDING FROM 15 MILES
SOUTHWEST OF PALISADES TO HATCH TO VIRGINIA TO BLACK PINE...MOVING
SLOWLY EAST AT 10 MPH.
SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS...ALONG WITH BRIEF MODERATE RAIN THROUGH 600 PM MDT.
LOCATIONS IMPACTED INCLUDE...
HATCH...
HOLBROOK...
HENRY...STONE AND WAYAN...
LAT...LON 4201 11319 4249 11230 4330 11149 4329 11103
4244 11187 4199 11255
TIME...MOT...LOC 2301Z 271DEG 8KT 4322 11144 4278 11192
4249 11217 4206 11297
HUSTONSpecial weather statement, Aug 8, 6:01 PM MDT, 20 minutes before
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</html>The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 6:01 PM MDT | Special Weather Statement | PIH | Oneida | 44 min |
| Aug 8, 6:15 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Cassia, Minidoka, Power | 4 min |
| Aug 8, 6:35 PM MDT | Special Weather Statement | PIH | Bear Lake | 55 min |
| Aug 8, 7:04 PM MDT | Special Weather Statement | PIH | Bingham | 56 min |
| Aug 8, 7:35 PM MDT | Special Weather Statement | PIH | Bear Lake | 55 min |
| Aug 8, 7:45 PM MDT | Special Weather Statement | PIH | Franklin | 60 min |
| Aug 8, 8:01 PM MDT | Special Weather Statement | PIH | Bannock | 59 min |
| Aug 8, 8:27 PM MDT | Special Weather Statement | PIH | Bear Lake | 63 min |
| Aug 8, 8:52 PM MDT | Special Weather Statement | PIH | Caribou | 53 min |
| Aug 8, 9:22 PM MDT | Special Weather Statement | PIH | Camas | 53 min |
| Aug 8, 9:52 PM MDT | Flash Flood Warning | PIH | Blaine | 2 hr |
| Aug 9, 3:06 AM MDT | Flash Flood Watch | PIH | 17 hr | |
| Aug 9, 1:17 PM MDT | Flash Flood Warning | PIH | Blaine | 4 hr |
| Aug 9, 3:17 PM MDT | Special Weather Statement | PIH | Oneida | 58 min |
| Aug 9, 3:21 PM MDT | Special Weather Statement | PIH | Cassia | 54 min |
| Aug 9, 3:38 PM MDT | Special Weather Statement | PIH | Blaine | 52 min |
| Aug 9, 3:48 PM MDT | Special Weather Statement | PIH | Custer | 57 min |
| Aug 9, 4:21 PM MDT | Special Weather Statement | PIH | Franklin | 54 min |
| Aug 9, 4:25 PM MDT | Special Weather Statement | PIH | Cassia | 50 min |
| Aug 9, 4:30 PM MDT | Special Weather Statement | PIH | Cassia | 45 min |
| Aug 9, 4:44 PM MDT | Flash Flood Warning | PIH | Cassia | 3 hr |
| Aug 9, 5:12 PM MDT | Flash Flood Warning | PIH | Blaine | 2 hr |
| Aug 9, 5:30 PM MDT | Special Weather Statement | PIH | Minidoka | 60 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2014Every severe thunderstorm warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.