Alert archive / Idaho / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 21, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at Jul 4, 2011, 5:26 PM MDT for Bannock County, Bingham County, Power County, Idaho. It was in force for 49 min. 1 report 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
- Jul 4, 2011, 5:26 PM MDT (23:26 UTC)
- Expired
- Jul 4, 2011, 6:15 PM MDT
- In force
- 49 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
Counties Bannock County, ID, Bingham County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 23 km from the middle of the area, began a volume at 23:29 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 |
|---|---|---|---|
| Jul 4, 5:46 PM MDT | HAIL 0.75 | 5 Ne American Falls, ID | SEAGULL BAY EXIT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 11.4 hours before the alert went out and 245 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
- 96 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 3171 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
050 WUUS55 KPIH 042326 SVRPIH IDC005-011-077-050015- /O.NEW.KPIH.SV.W.0021.110704T2326Z-110705T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE POCATELLO 526 PM MDT MON JUL 4 2011 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN BANNOCK COUNTY IN SOUTHEAST IDAHO... SOUTHWESTERN BINGHAM COUNTY IN SOUTHEAST IDAHO... CENTRAL POWER COUNTY IN SOUTHEAST IDAHO... THIS INCLUDES THE CITIES OF...NEELEY...AMERICAN FALLS... * UNTIL 615 PM MDT * AT 524 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR AMERICAN FALLS...AND MOVING EAST AT 15 MPH. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... ARBON VALLEY AND POCATELLO AIRPORT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF ON OR NEAR AMERICAN FALLS RESERVOIR...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM! 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 4304 11257 4281 11245 4271 11294 4288 11303 TIME...MOT...LOC 2326Z 249DEG 11KT 4283 11287 $$ HUSTON
2 follow-up statements
404 WWUS55 KPIH 042358 SVSPIH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO 558 PM MDT MON JUL 4 2011 IDC005-011-077-050015- /O.CON.KPIH.SV.W.0021.000000T0000Z-110705T0015Z/ BINGHAM ID-POWER ID-BANNOCK ID- 558 PM MDT MON JUL 4 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR NORTHWESTERN BANNOCK...CENTRAL POWER AND SOUTHWESTERN BINGHAM COUNTIES... AT 554 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. SPOTTER REPORTS ALONG THE PERIPHERY OF THE MAIN CORE INDICATED 3/4 INCH HAIL...BRIEF HEAVY RAIN WITH WIND GUSTS TO 45 MPH. THIS STORM WAS LOCATED 7 MILES NORTHEAST OF AMERICAN FALLS...MOVING EAST AT 15 MPH. * LOCATIONS THAT COULD BE AFFECTED INCLUDE... ARBON VALLEY... POCATELLO AIRPORT AND MICHAUD... PRECAUTIONARY/PREPAREDNESS ACTIONS... STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 8 7 7 1 9 3 7. && LAT...LON 4304 11257 4281 11245 4271 11294 4288 11303 TIME...MOT...LOC 2356Z 249DEG 11KT 4286 11275 $$ HUSTON
539 WWUS55 KPIH 050013 SVSPIH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO 613 PM MDT MON JUL 4 2011 IDC005-011-077-050023- /O.EXP.KPIH.SV.W.0021.000000T0000Z-110705T0015Z/ BINGHAM ID-POWER ID-BANNOCK ID- 613 PM MDT MON JUL 4 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BANNOCK...CENTRAL POWER AND SOUTHWESTERN BINGHAM COUNTIES WILL EXPIRE AT 615 PM MDT... AT 613 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAD MOVED OUT OF THE AREA. THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE. 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 4304 11257 4281 11245 4271 11294 4288 11303 TIME...MOT...LOC 0013Z 249DEG 11KT 4288 11268 $$ HUSTON
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 3:59 PM MDT | Special Weather Statement | PIH | Cassia | 61 min |
| Jul 4, 4:53 PM MDT | Special Weather Statement | PIH | Clark | 52 min |
| Jul 4, 5:41 PM MDT | Special Weather Statement | PIH | Oneida | 64 min |
| Jul 4, 5:45 PM MDT | Special Weather Statement | PIH | Clark | 45 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.