Alert archive / Texas / Tornado Warnings in 2011
Tornado Warning 5, NWS San Angelo, TX
NWS San Angelo, TX issued this tornado warning at Apr 20, 2011, 6:41 PM CDT for Kimble County, Sutton County, Texas. It was in force for 49 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
- Apr 20, 2011, 6:41 PM CDT (23:41 UTC)
- Expired
- Apr 20, 2011, 7:30 PM CDT
- In force
- 49 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
Counties Kimble County, TX, Sutton County, TX
The radar
The San Angelo radar (KSJT), 116 km from the middle of the area, began a volume at 23:44 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 |
|---|---|---|---|
| Apr 20, 6:45 PM CDT | FUNNEL CLOUD | 1 W Roosevelt, TX | |
| Apr 20, 6:48 PM CDT | HAIL 1 | Roosevelt, TX | |
| Apr 20, 7:00 PM CDT | HAIL 1.5 | Roosevelt, TX | HAIL 1.5 INCHES IN DIAMETER. |
| Apr 20, 7:04 PM CDT | HAIL 2.25 | Roosevelt, TX | HAIL MEASURED AT BILLIARD BALL SIZE |
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 |
|---|---|---|---|
| Apr 20, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.7 hours before the alert went out and 139 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
- 3836 J/kg
- Mixed-layer CIN
- -184 J/kg
- Mixed-layer LCL
- 1002 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
840 WFUS54 KSJT 202341 TORSJT TXC267-435-210030- /O.NEW.KSJT.TO.W.0005.110420T2341Z-110421T0030Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 641 PM CDT WED APR 20 2011 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN SUTTON COUNTY IN WEST CENTRAL TEXAS... WEST CENTRAL KIMBLE COUNTY IN WEST CENTRAL TEXAS... * UNTIL 730 PM CDT * AT 639 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS 4 MILES SOUTHWEST OF ROOSEVELT...OR 20 MILES WEST OF JUNCTION...MOVING SOUTHEAST AT 15 MPH. IN ADDITION TO DANGEROUS TORNADIC WINDS...OTHER HAZARDS INCLUDE... TENNIS BALL SIZE HAIL DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 60 MPH. POTENTIALLY DEADLY LIGHTNING. *THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF... SOUTHEASTERN SUTTON AND WEST CENTRAL KIMBLE COUNTIES. THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 430 AND 439. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR WEST CENTRAL TEXAS. && LAT...LON 3035 9987 3030 10021 3050 10018 3053 10007 TIME...MOT...LOC 2341Z 332DEG 14KT 3045 10010 $$ JOHNSON
2 follow-up statements
995 WWUS54 KSJT 202355 SVSSJT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 655 PM CDT WED APR 20 2011 TXC267-435-210030- /O.CON.KSJT.TO.W.0005.000000T0000Z-110421T0030Z/ SUTTON TX-KIMBLE TX- 655 PM CDT WED APR 20 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR WEST CENTRAL KIMBLE AND EXTREME SOUTHEASTERN SUTTON COUNTIES... AT 648 PM CDT...THE MOST DANGEROUS PART OF THE STORM WAS LOCATED NEAR I-10 NEAR THE SUTTON-KIMBLE COUNTY LINE...OR 19 MILES WEST OF JUNCTION...MOVING SOUTHEAST AT 15 MPH. A FUNNEL CLOUD WAS REPORTED 1 MILE WEST OF ROOSEVELT AT 645 PM CDT. STORM HAZARDS INCLUDE... DANGEROUS TORNADIC WINDS. BASEBALL SIZE HAIL DAMAGING WINDS IN EXCESS OF 60 MPH. WITH POSSIBLE STORM IMPACTS... OVERTURNED VEHICLES DAMAGE TO TREES...SOME MAY BE UPROOTED DAMAGE TO HOMES...MAY DESTROY MANUFACTURED HOMES EXTREME VEHICLE DAMAGE EXTREME ROOF DAMAGE BROKEN WINDOWS ON VEHICLES AND HOMES SERIOUSLY INJURE PEOPLE...PETS...AND LIVESTOCK LEFT UNPROTECTED DAMAGE TO TREE LIMBS THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF SOUTHEASTERN SUTTON AND WESTERN KIMBLE COUNTIES. THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 433 AND 438. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR WEST CENTRAL TEXAS. && LAT...LON 3047 10013 3049 10006 3035 9987 3031 10017 TIME...MOT...LOC 2354Z 332DEG 14KT 3041 10007 $$ JOHNSON
991 WWUS54 KSJT 210028 SVSSJT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 728 PM CDT WED APR 20 2011 TXC267-435-210038- /O.EXP.KSJT.TO.W.0005.000000T0000Z-110421T0030Z/ SUTTON TX-KIMBLE TX- 728 PM CDT WED APR 20 2011 ...THE TORNADO WARNING FOR WEST CENTRAL KIMBLE AND SOUTHEASTERN SUTTON COUNTIES WILL EXPIRE AT 730 PM CDT... THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 433 AND 437. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR WEST CENTRAL TEXAS. LAT...LON 3047 10013 3049 10006 3035 9987 3031 10017 TIME...MOT...LOC 0028Z 332DEG 14KT 3029 10000 $$
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 3:22 PM CDT | Severe Thunderstorm Warning | SJT | Menard | 53 min |
| Apr 20, 3:29 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Menard | 61 min |
| Apr 20, 3:44 PM CDT | Severe Thunderstorm Warning | SJT | Concho, McCulloch | 51 min |
| Apr 20, 4:13 PM CDT | Flash Flood Warning | SJT | Menard | 107 min |
| Apr 20, 4:16 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Menard | 59 min |
| Apr 20, 4:20 PM CDT | Severe Thunderstorm Warning | SJT | Irion, Schleicher, Tom Green | 40 min |
| Apr 20, 4:28 PM CDT | Severe Thunderstorm Warning | SJT | Concho | 62 min |
| Apr 20, 4:44 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Runnels | 61 min |
| Apr 20, 4:45 PM CDT | Severe Thunderstorm Warning | SJT | Concho, Tom Green | 45 min |
| Apr 20, 5:04 PM CDT | Severe Thunderstorm Warning | SJT | Schleicher, Tom Green | 41 min |
| Apr 20, 5:12 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Menard | 63 min |
| Apr 20, 5:25 PM CDT | Tornado Warning | SJT | Kimble | 35 min |
| Apr 20, 5:30 PM CDT | Severe Thunderstorm Warning | SJT | Runnels | 45 min |
| Apr 20, 5:45 PM CDT | Severe Thunderstorm Warning | SJT | Kimble | 45 min |
| Apr 20, 5:50 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Runnels | 40 min |
| Apr 20, 6:15 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Runnels, Taylor | 45 min |
| Apr 20, 6:21 PM CDT | Severe Thunderstorm Warning | SJT | Kimble | 39 min |
| Apr 20, 6:23 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman | 52 min |
| Apr 20, 6:40 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman | 50 min |
| Apr 20, 6:48 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Jones, Shackelford, Taylor | 57 min |
| Apr 20, 6:57 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Sutton | 63 min |
Nearby
Tornado Warnings in Texas, 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.