Alert archive / Wyoming / Tornado Warnings in 2011
Tornado Warning 13, NWS Rapid City, SD
NWS Rapid City, SD issued this tornado warning at Jul 2, 2011, 3:59 PM MDT for Crook County, Weston County, Wyoming. It was in force for 46 min. 4 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
- Jul 2, 2011, 3:59 PM MDT (21:59 UTC)
- Expired
- Jul 2, 2011, 4:45 PM MDT
- In force
- 46 min
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
Counties Crook County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 138 km from the middle of the area, began a volume at 22:00 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 2, 4:15 PM MDT | HAIL 1.75 | Upton, WY | LARGE HAIL DAMAGED HOMES AND VEHICLES. |
| Jul 2, 4:17 PM MDT | HAIL 1.75 | Se Upton, WY | |
| Jul 2, 4:25 PM MDT | FUNNEL CLOUD | 5 Nnw Osage, WY | DIRECTLY OVERHEAD |
| Jul 2, 4:35 PM MDT | FUNNEL CLOUD | 5 Nnw Osage, WY | SPOTTER IN OSAGE OBSERVED FUNNEL 5 NNW OSAGE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 2, 2:13 PM MDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 10.0 hours before the alert went out and 134 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
- 829 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 993 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
229 WFUS53 KUNR 022159 TORUNR WYC011-045-022245- /O.NEW.KUNR.TO.W.0013.110702T2159Z-110702T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE RAPID CITY SD 359 PM MDT SAT JUL 2 2011 THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL CROOK COUNTY IN NORTHEASTERN WYOMING... NORTH CENTRAL WESTON COUNTY IN NORTHEASTERN WYOMING... * UNTIL 445 PM MDT * AT 356 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES SOUTHWEST OF UPTON...OR 28 MILES NORTHWEST OF DOWNTOWN NEWCASTLE...AND MOVING NORTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... UPTON AND INYAN KARA MOUNTAIN. THIS INCLUDES INTERSTATE 90 BETWEEN WYOMING MILE MARKERS 175 AND 181... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4439 10451 4418 10420 4392 10469 4404 10486 TIME...MOT...LOC 2159Z 224DEG 18KT 4404 10470 $$ CALDERON
3 follow-up statements
376 WWUS53 KUNR 022215 SVSUNR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 415 PM MDT SAT JUL 2 2011 WYC011-045-022245- /O.CON.KUNR.TO.W.0013.000000T0000Z-110702T2245Z/ WESTON WY-CROOK WY- 415 PM MDT SAT JUL 2 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL CROOK AND NORTH CENTRAL WESTON COUNTIES UNTIL 445 PM MDT... AT 412 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR UPTON...OR 25 MILES NORTHWEST OF DOWNTOWN NEWCASTLE...MOVING NORTHEAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... UPTON...INYAN KARA MOUNTAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4398 10459 4409 10474 4436 10447 4418 10420 TIME...MOT...LOC 2216Z 225DEG 27KT 4407 10459 $$ CALDERON
412 WWUS53 KUNR 022232 SVSUNR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 432 PM MDT SAT JUL 2 2011 WYC011-045-022245- /O.CON.KUNR.TO.W.0013.000000T0000Z-110702T2245Z/ WESTON WY-CROOK WY- 432 PM MDT SAT JUL 2 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL CROOK AND NORTH CENTRAL WESTON COUNTIES UNTIL 445 PM MDT... AT 429 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR UPTON...OR 23 MILES NORTHWEST OF DOWNTOWN NEWCASTLE...MOVING NORTHEAST AT 15 MPH. LOCATIONS IMPACTED INCLUDE... INYAN KARA MOUNTAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4407 10462 4426 10439 4416 10424 4400 10456 TIME...MOT...LOC 2233Z 242DEG 13KT 4407 10454 $$ CALDERON
214 WWUS53 KUNR 022243 SVSUNR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 443 PM MDT SAT JUL 2 2011 WYC011-045-022251- /O.EXP.KUNR.TO.W.0013.000000T0000Z-110702T2245Z/ WESTON WY-CROOK WY- 443 PM MDT SAT JUL 2 2011 ...THE TORNADO WARNING FOR SOUTH CENTRAL CROOK AND NORTH CENTRAL WESTON COUNTIES WILL EXPIRE AT 445 PM MDT/545 PM CDT/... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT. REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CROOK AND WESTON COUNTIES UNTIL 530 PM MDT. LAT...LON 4407 10462 4426 10439 4416 10424 4400 10456 TIME...MOT...LOC 2241Z 242DEG 13KT 4408 10450 $$ CALDERON
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 2:26 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Crook | 64 min |
| Jul 2, 2:37 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Weston | 53 min |
| Jul 2, 2:51 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 39 min |
| Jul 2, 2:57 PM MDT | Flash Flood Warning | UNR | Campbell, Crook | 4 hr |
| Jul 2, 3:23 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 67 min |
| Jul 2, 3:27 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 63 min |
| Jul 2, 4:27 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 63 min |
| Jul 2, 4:30 PM MDT | Flash Flood Warning | UNR | Crook, Weston | 6 hr |
| Jul 2, 4:50 PM MDT | Tornado Warning | UNR | Crook, Weston | 23 min |
| Jul 2, 4:53 PM MDT | Tornado Warning | UNR | Weston | 52 min |
| Jul 2, 5:01 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 59 min |
| Jul 2, 5:35 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 40 min |
| Jul 2, 5:52 PM MDT | Tornado Warning | UNR | Weston | 21 min |
Nearby
Tornado Warnings in Wyoming, 2011Every tornado warning in 2011Tornadoes 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.