Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 310, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this severe thunderstorm warning at Aug 11, 2009, 7:05 PM CDT for Pecos County, Terrell County, Texas. It was in force for 55 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
- Aug 11, 2009, 7:05 PM CDT (00:05 UTC)
- Expired
- Aug 11, 2009, 8:00 PM CDT
- In force
- 55 min
- Issued by
- NWS Midland/Odessa, TX
- Area
- Storm-based polygon
Counties Pecos County, TX, Terrell County, TX
The radar
The Midland/Odessa radar (KMAF), 153 km from the middle of the area, began a volume at 00:04 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
Midland Regional, TX (KMAF), launched 00:00Z, 0.1 hours before the alert went out and 154 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
- 464 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 2229 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KMAF 120005 SVRMAF TXC371-443-120100- /O.NEW.KMAF.SV.W.0310.090812T0005Z-090812T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX 705 PM CDT TUE AUG 11 2009 THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS... NORTH CENTRAL TERRELL COUNTY IN SOUTHWEST TEXAS... * UNTIL 800 PM CDT * AT 702 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED OVER EXTREME NORTH CENTRAL TERRELL COUNTY...OR 16 MILES WEST OF SHEFFIELD. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS... NORTHERN TERRELL COUNTY... EASTERN PECOS COUNTY... FM 2400...14 MILES SOUTHWEST OF SHEFFIELD... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS... DEADLY CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. REMEMBER...IF YOU CAN HEAR THUNDER... YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER NOW. && LAT...LON 3046 10231 3077 10224 3069 10189 3047 10188 TIME...MOT...LOC 0003Z 101DEG 5KT 3062 10208 $$
1 follow-up statement
000 WWUS54 KMAF 120029 SVSMAF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX 729 PM CDT TUE AUG 11 2009 TXC371-443-120100- /O.CON.KMAF.SV.W.0310.000000T0000Z-090812T0100Z/ PECOS TX-TERRELL TX- 729 PM CDT TUE AUG 11 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR NORTH CENTRAL TERRELL AND EAST CENTRAL PECOS COUNTIES... AT 726 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED OVER NORTH CENTRAL TERRELL COUNTY...OR ABOUT 17 MILES SOUTHWEST OF SHEFFIELD...SLOWLY MOVING SOUTH SOUTHEAST AT 5 MPH. SOME LOCATIONS AFFECTED BY THE SEVERE THUNDERSTORM INCLUDE... NORTH CENTRAL TERRELL COUNTY... FM 2400...17 MILES SOUTHWEST OF SHEFFIELD... STATE HIGHWAY 349 NEAR MILE MARKER 446... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING AWAY FROM WINDOWS. && LAT...LON 3046 10231 3077 10224 3069 10189 3047 10188 TIME...MOT...LOC 0026Z 101DEG 5KT 3054 10204 $$
The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 7:22 PM CDT | Areal Flood Advisory | MAF | Pecos, Terrell | 3 hr |
| Aug 11, 7:28 PM CDT | Severe Thunderstorm Warning | MAF | Loving, Winkler | 32 min |
| Aug 11, 7:51 PM CDT | Severe Thunderstorm Warning | MAF | Pecos, Terrell | 54 min |
| Aug 11, 10:14 PM CDT | Areal Flood Advisory | MAF | Pecos, Terrell | 3 hr |
| Aug 11, 11:38 PM CDT | Areal Flood Advisory | MAF | Culberson, Jeff Davis, Reeves | 82 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.