Alert archive / Idaho / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 39, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at Aug 1, 2011, 4:56 PM MDT for Bingham County, Butte County, Idaho. It was in force for 35 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 1, 2011, 4:56 PM MDT (22:56 UTC)
- Expired
- Aug 1, 2011, 5:31 PM MDT
- In force
- 35 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
Counties Bingham County, ID, Butte County, ID
The radar
The Pocatello radar (KSFX), 51 km from the middle of the area, began a volume at 22:56 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 5:07 PM MDT | TSTM WND GST 61 | 6 Wnw Central Inl, ID | 61 MILE AN HOUR WIND GUST AT INL CENTRL FACILITY. |
| Aug 1, 5:10 PM MDT | TSTM WND GST 58 | 4 Sw Central Inl, ID | LOST RIVER REST AREA. |
| Aug 1, 5:15 PM MDT | TSTM WND GST 65 | 12 Nw Atomic City, ID | INL REACTOR TECH SITE. |
| Aug 1, 5:15 PM MDT | TSTM WND GST 66 | 1 Wsw Central Inl, ID | CENTRAL INL FACILITY WIND SENSOR. |
| Aug 1, 5:20 PM MDT | TSTM WND GST 67 | Nne Central Inl, ID | CENTRAL INL FACILITY WEATHER INSTRUMENT MEASURED GUST TO 67 MILES AN HOUR. |
| Aug 1, 5:25 PM MDT | TSTM WND GST 70 | 5 Se Central Inl, ID | 70 MILE AN HOUR WIND GUST AT CRITICAL INFRASTUCTURE COMPLEX INL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 10.9 hours before the alert went out and 268 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
- 237 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1719 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
042 WUUS55 KPIH 012256 SVRPIH IDC011-023-012345- /O.NEW.KPIH.SV.W.0039.110801T2256Z-110801T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE POCATELLO 456 PM MDT MON AUG 1 2011 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO... THIS INCLUDES THE CITIES OF...SOUTHWEST INL...CENTRAL INL... NORTHWESTERN BINGHAM COUNTY IN SOUTHEAST IDAHO... THIS INCLUDES THE CITY OF SOUTHEAST INL... * UNTIL 545 PM MDT * AT 448 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 11 MILES WEST OF SOUTHWEST INL...OR 6 MILES SOUTHEAST OF ARCO...AND MOVING EAST AT 25 MPH. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... SOUTHWEST INL... CENTRAL INL... PRECAUTIONARY/PREPAREDNESS ACTIONS... DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7. && LAT...LON 4359 11257 4335 11268 4352 11330 4369 11322 TIME...MOT...LOC 2255Z 289DEG 21KT 4357 11314 $$ HUSTON
2 follow-up statements
918 WWUS55 KPIH 012317 SVSPIH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO 517 PM MDT MON AUG 1 2011 IDC011-023-012345- /O.CON.KPIH.SV.W.0039.000000T0000Z-110801T2345Z/ BINGHAM ID-BUTTE ID- 517 PM MDT MON AUG 1 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR CENTRAL BUTTE AND NORTHWESTERN BINGHAM COUNTIES... AT 512 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SOUTHWEST INL...MOVING EAST AT 25 MPH. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... ATOMIC CITY...CENTRAL INL... PRECAUTIONARY/PREPAREDNESS ACTIONS... DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7. && LAT...LON 4359 11257 4335 11268 4352 11330 4369 11322 TIME...MOT...LOC 2317Z 289DEG 21KT 4351 11298 $$ HUSTON
926 WWUS55 KPIH 012331 SVSPIH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO 531 PM MDT MON AUG 1 2011 IDC011-023-012341- /O.CAN.KPIH.SV.W.0039.000000T0000Z-110801T2345Z/ BINGHAM ID-BUTTE ID- 531 PM MDT MON AUG 1 2011 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BUTTE AND NORTHWESTERN BINGHAM COUNTIES IS CANCELLED... AT 531 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAD MOVED SOUTHEAST OF THE WARNED AREA. THEREFORE THE WARNING IS CANCELLED. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... ATOMIC CITY... PRECAUTIONARY/PREPAREDNESS ACTIONS... STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7. && LAT...LON 4359 11257 4335 11268 4352 11330 4369 11322 TIME...MOT...LOC 2331Z 289DEG 21KT 4346 11288 $$ HUSTON
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 7:31 PM MDT | Special Weather Statement | PIH | Bear Lake, Franklin | 89 min |
| Jul 31, 8:49 PM MDT | Special Weather Statement | PIH | Bear Lake, Franklin | 56 min |
| Jul 31, 9:55 PM MDT | Special Weather Statement | PIH | Bear Lake, Caribou | 65 min |
| Aug 1, 3:19 PM MDT | Special Weather Statement | PIH | Camas | 41 min |
| Aug 1, 3:30 PM MDT | Special Weather Statement | PIH | Custer | 45 min |
| Aug 1, 3:33 PM MDT | Special Weather Statement | PIH | Butte | 42 min |
| Aug 1, 3:59 PM MDT | Severe Thunderstorm Warning | PIH | Butte, Custer | 46 min |
| Aug 1, 4:38 PM MDT | Flash Flood Warning | PIH | Butte, Custer | 2 hr |
| Aug 1, 5:24 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Butte, Jefferson | 51 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.