Alert archive / Colorado / Tornado Warnings in 2011
Tornado Warning 53, NWS Goodland, KS
NWS Goodland, KS issued this tornado warning at Sep 17, 2011, 4:50 PM MDT for Kit Carson County, Colorado. It was in force for 40 min. 3 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
- Sep 17, 2011, 4:50 PM MDT (22:50 UTC)
- Expired
- Sep 17, 2011, 5:30 PM MDT
- In force
- 40 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
County Kit Carson County, CO
The radar
The Goodland radar (KGLD), 75 km from the middle of the area, began a volume at 22:52 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 |
|---|---|---|---|
| Sep 17, 4:57 PM MDT | HAIL 1.75 | 10 Ssw Kirk, CO | |
| Sep 17, 5:27 PM MDT | HAIL 1.75 | 5 N Stratton, CO | REPORT RELAYED BY LAW ENFORCEMENT OF 2 REPORTS OF GOLF BALL SIZED HAIL. |
| Sep 17, 5:40 PM MDT | HAIL 0.88 | 12 N Vona, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.8 hours before the alert went out and 73 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
- 2169 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
342 WFUS53 KGLD 172250 TORGLD COC063-172330- /O.NEW.KGLD.TO.W.0053.110917T2250Z-110917T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GOODLAND KS 450 PM MDT SAT SEP 17 2011 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL KIT CARSON COUNTY IN EAST CENTRAL COLORADO... * UNTIL 530 PM MDT * AT 447 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES SOUTHWEST OF KIRK...AND WAS MOVING SOUTHEAST AT 10 MPH. * LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF NORTHERN KIT CARSON COUNTY. 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 3945 10235 3934 10268 3950 10280 3956 10266 TIME...MOT...LOC 2250Z 313DEG 10KT 3949 10271 HAIL 1.00IN $$ ROBINSON
3 follow-up statements
556 WWUS53 KGLD 172254 SVSGLD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 454 PM MDT SAT SEP 17 2011 COC063-172330- /O.CON.KGLD.TO.W.0053.000000T0000Z-110917T2330Z/ KIT CARSON CO- 454 PM MDT SAT SEP 17 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL KIT CARSON COUNTY UNTIL 530 PM MDT... AT 452 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES SOUTHWEST OF KIRK...AND WAS MOVING SOUTHEAST AT 10 MPH. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF NORTHERN KIT CARSON COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3945 10235 3934 10268 3950 10280 3956 10266 TIME...MOT...LOC 2255Z 313DEG 10KT 3948 10270 HAIL 1.25IN $$ ROBINSON
458 WWUS53 KGLD 172302 SVSGLD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 502 PM MDT SAT SEP 17 2011 COC063-172330- /O.CON.KGLD.TO.W.0053.000000T0000Z-110917T2330Z/ KIT CARSON CO- 502 PM MDT SAT SEP 17 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL KIT CARSON COUNTY UNTIL 530 PM MDT... AT 501 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES SOUTH OF KIRK...AND WAS MOVING SOUTHEAST AT 15 MPH. IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. AT 457 PM MDT GOLF BALL SIZE HAIL WAS REPORTED 10 MILES SW OF KIRK WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF NORTHERN KIT CARSON COUNTY. 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 3945 10235 3934 10268 3950 10280 3956 10266 TIME...MOT...LOC 2302Z 308DEG 11KT 3946 10265 HAIL 1.75IN $$ ROBINSON
439 WWUS53 KGLD 172316 SVSGLD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 516 PM MDT SAT SEP 17 2011 COC063-172330- /O.CON.KGLD.TO.W.0053.000000T0000Z-110917T2330Z/ KIT CARSON CO- 516 PM MDT SAT SEP 17 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL KIT CARSON COUNTY UNTIL 530 PM MDT... AT 514 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 9 MILES NORTH OF STRATTON...AND WAS MOVING SOUTHEAST AT 15 MPH. IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF CENTRAL KIT CARSON COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3945 10272 3952 10255 3945 10235 3935 10265 TIME...MOT...LOC 2316Z 308DEG 11KT 3943 10261 HAIL 1.50IN $$ ROBINSON
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 9:41 PM MDT | Dense Fog Advisory | GLD | Cheyenne, Kit Carson | 5 hr |
| Sep 17, 7:39 AM MDT | Dense Fog Advisory | GLD | Cheyenne, Kit Carson, Yuma | 2 hr |
| Sep 17, 2:48 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 19 min |
| Sep 17, 4:34 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 17 min |
| Sep 17, 5:14 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 46 min |
| Sep 17, 5:20 PM MDT | Tornado Warning | GLD | Kit Carson | 55 min |
| Sep 17, 5:46 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 17 min |
Nearby
Tornado Warnings in Colorado, 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.