Alert archive / Texas / Tornado Warnings in 2011
Tornado Warning 27, NWS San Angelo, TX
NWS San Angelo, TX issued this tornado warning at Jun 21, 2011, 2:47 AM CDT for Coleman County, Texas. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2011, 2:47 AM CDT (07:47 UTC)
- Expired
- Jun 21, 2011, 3:28 AM CDT
- In force
- 41 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
County Coleman County, TX
The radar
The Dyess AFB radar (KDYX), 77 km from the middle of the area, began a volume at 07:50 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.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 7.8 hours before the alert went out and 230 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
- 1045 J/kg
- Mixed-layer CIN
- -288 J/kg
- Mixed-layer LCL
- 2415 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
775 WFUS54 KSJT 210747 TORSJT TXC083-210830- /O.NEW.KSJT.TO.W.0027.110621T0747Z-110621T0830Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 247 AM CDT TUE JUN 21 2011 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * TORNADO WARNING FOR... NORTHERN COLEMAN COUNTY IN NORTH CENTRAL TEXAS... * UNTIL 330 AM CDT * AT 245 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS 4 MILES EAST OF GLEN COVE...OR 10 MILES WEST OF COLEMAN...MOVING SOUTHEAST AT 25 MPH. IN ADDITION TO DANGEROUS TORNADIC WINDS...OTHER HAZARDS INCLUDE... QUARTER SIZE HAIL. DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 60 MPH. POTENTIALLY DEADLY LIGHTNING. * THE TORNADO IS EXPECTED TO BE NEAR... HORDES CREEK RESERVOIR BY 250 AM... COLEMAN BY 305 AM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3191 9928 3170 9939 3184 9972 3200 9963 TIME...MOT...LOC 0747Z 294DEG 22KT 3187 9956 $$
2 follow-up statements
208 WWUS54 KSJT 210803 SVSSJT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 303 AM CDT TUE JUN 21 2011 TXC083-210830- /O.CON.KSJT.TO.W.0027.000000T0000Z-110621T0830Z/ COLEMAN TX- 303 AM CDT TUE JUN 21 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR NORTHERN COLEMAN COUNTY... AT 259 AM CDT... STRONG ROTATION CONTINUES WITH THIS STORM. A TORNADO MAY DEVELOP AT ANY TIME! RESIDENTS SHOULD TAKE COVER NOW! THE MOST DANGEROUS PART OF THIS STORM WAS LOCATED NEAR COLEMAN...MOVING EAST AT 25 MPH. STORM HAZARDS INCLUDE... DANGEROUS TORNADIC WINDS. QUARTER SIZE HAIL DAMAGING WINDS IN EXCESS OF 60 MPH. WITH POSSIBLE STORM IMPACTS... OVERTURNED VEHICLES... DAMAGE TO TREES...SOME MAY BE UPROOTED... DAMAGE TO HOMES...MAY DESTROY MANUFACTURED HOMES... VEHICLE DINGS... MINOR DAMAGE TO ROOFS... DAMAGE TO TREE LIMBS... LIGHT OBJECTS BLOWN AROUND... THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF NORTHERN COLEMAN COUNTY AS IT MOVES EAST OF THE TOWN OF COLEMAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3191 9928 3170 9939 3184 9972 3200 9963 TIME...MOT...LOC 0803Z 292DEG 21KT 3185 9945 $$
706 WWUS54 KSJT 210828 SVSSJT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 328 AM CDT TUE JUN 21 2011 TXC083-210837- /O.CAN.KSJT.TO.W.0027.000000T0000Z-110621T0830Z/ COLEMAN TX- 328 AM CDT TUE JUN 21 2011 ...THE TORNADO WARNING FOR NORTHERN COLEMAN COUNTY IS CANCELLED... THE TORNADIC STORM HAS WEAKENED CONSIDERABLY BUT MAY BE ABLE TO STILL PRODUCE STRONG WINDS NEAR 50 MPH AS IT MOVES EAST OF COLEMAN TOWARDS BROWN COUNTY. THE TORNADO WARNING IS NO LONGER IN EFFECT. LAT...LON 3191 9928 3170 9939 3184 9972 3200 9963 TIME...MOT...LOC 0827Z 292DEG 21KT 3180 9930 $$
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 11:44 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 31 min |
| Jun 20, 11:57 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Jones, Shackelford, Taylor | 63 min |
| Jun 21, 12:50 AM CDT | Severe Thunderstorm Warning | SJT | Callahan, Taylor | 40 min |
| Jun 21, 1:00 AM CDT | Severe Thunderstorm Warning | SJT | Callahan, Shackelford, Taylor | 45 min |
| Jun 21, 1:31 AM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Taylor | 29 min |
| Jun 21, 2:14 AM CDT | Severe Thunderstorm Warning | SJT | Brown, Callahan, Coleman, Runnels | 61 min |
| Jun 21, 4:49 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Coleman | 56 min |
| Jun 21, 5:06 PM CDT | Severe Thunderstorm Warning | SJT | Coke | 39 min |
| Jun 21, 5:16 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman | 44 min |
| Jun 21, 5:46 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Coleman | 44 min |
| Jun 21, 6:10 PM CDT | Severe Thunderstorm Warning | SJT | Runnels | 20 min |
| Jun 21, 6:25 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Nolan | 50 min |
| Jun 21, 6:29 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Coleman | 46 min |
| Jun 21, 6:33 PM CDT | Severe Thunderstorm Warning | SJT | Coleman | 42 min |
| Jun 21, 6:37 PM CDT | Severe Thunderstorm Warning | SJT | Sterling | 38 min |
| Jun 21, 6:59 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.