Alert archive / Texas / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 11, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 6, 2014, 6:46 AM CDT for 4 counties in Texas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 6, 2014, 6:46 AM CDT (11:46 UTC)
- Expired
- Apr 6, 2014, 7:30 AM CDT
- In force
- 44 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Polk County, TX, San Jacinto County, TX, Trinity County, TX, Walker County, TX
The radar
The Houston radar (KHGX), 148 km from the middle of the area, began a volume at 11:47 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 6, 6:26 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 11.8 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1931 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 6, 6:39 AM CDT, 7 minutes earlier.
Area forecast discussion, Apr 6, 6:39 AM CDT, 7 minutes before
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</html>Hazardous weather outlook, Apr 6, 5:17 AM CDT, 1 hour 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 517 AM CDT SUN APR 6 2014 TXZ163-164-176>179-195>200-210>213-226-227-235-071030- AUSTIN-BRAZOS-BURLESON-COLORADO-FORT BEND-GRIMES-HARRIS-HOUSTON- JACKSON-LIBERTY-MADISON-MONTGOMERY-POLK-SAN JACINTO-TRINITY- WALKER-WALLER-WASHINGTON-WHARTON- 517 AM CDT SUN APR 6 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT AN ADVANCING WARM FRONT...A DEVELOPING COASTAL TROUGH OF LOW PRESSURE AND A STRONG UPPER LEVEL DISTURBANCE WILL SET THE STAGE FOR SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TODAY. SPC HAS OUTLOOKED PARTS OF SOUTHEAST TEXAS IN SLIGHT RISK. THE PRIMARY HAZARD THIS MORNING WOULD BE LARGE HAIL...MAINLY NORTH OF I-10. THE THREAT THIS AFTERNOON WILL BE CLOSER TO THE COAST AND THE PRIMARY HAZARD WOULD BE STRONG WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. GMZ330-335-350-355-TXZ214-236>238-071030- BRAZORIA-CHAMBERS-GALVESTON-GALVESTON BAY-MATAGORDA-MATAGORDA BAY- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM- 517 AM CDT SUN APR 6 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT AN ADVANCING WARM FRONT...A DEVELOPING COASTAL TROUGH OF LOW PRESSURE AND A STRONG UPPER LEVEL DISTURBANCE WILL SET THE STAGE FOR SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TODAY. SPC HAS OUTLOOKED PARTS OF SOUTHEAST TEXAS IN SLIGHT RISK. THE PRIMARY HAZARD THIS MORNING WOULD BE LARGE HAIL...MAINLY NORTH OF I-10. THE THREAT THIS AFTERNOON WILL BE CLOSER TO THE COAST AND THE PRIMARY HAZARD WOULD BE STRONG WINDS. WARM AIR OVER RIDING COOLER SHELF WATERS HAS CREATED POCKETS OF SEA FOG. VISIBILITIES NEAR THE COAST HAVE FALLEN TO BETWEEN 1 AND 3 NM. THE FOG WILL LINGER NEAR THE COAST FOR MUCH OF THE DAY. A COLD FRONT WILL CROSS THE COAST THIS EVENING AND DRY NORTHWEST WINDS IN THE WAKE OF THE FRONT SHOULD END THE FOG THREAT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 5:44 AM CDT | Marine Dense Fog Advisory | HGX | 8 hr | |
| Apr 6, 6:01 AM CDT | Severe Thunderstorm Warning | HGX | Houston, Madison | 44 min |
| Apr 6, 6:42 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 48 min |
| Apr 6, 12:10 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Polk, San Jacinto, Trinity, Walker | 35 min |
| Apr 6, 12:45 PM CDT | Special Weather Statement | HGX | Polk, Trinity | 30 min |
| Apr 6, 1:17 PM CDT | Special Weather Statement | HGX | Trinity | 28 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2014Every severe thunderstorm warning in 2014
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.