Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 151, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Aug 12, 2009, 4:34 PM CDT for Harris 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 counties it named.
The facts
- Issued
- Aug 12, 2009, 4:34 PM CDT (21:34 UTC)
- Expired
- Aug 12, 2009, 5:15 PM CDT
- In force
- 41 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
County Harris County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 21:36 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 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 Aug 12, 3:21 PM CDT, 1 hour 13 minutes earlier.
Area forecast discussion, Aug 12, 3:21 PM CDT, 1 hour 13 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Aug 12, 7:00 AM CDT, 9 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 700 AM CDT WED AUG 12 2009 GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226- 227-235>238-131200- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GALVESTON BAY-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY- MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-POLK-SAN JACINTO- TRINITY-WALKER-WALLER-WASHINGTON- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM- WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-WHARTON- 700 AM CDT WED AUG 12 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON ISOLATED AFTERNOON THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE SEA BREEZE...OR POSSIBLY ALONG A WEAK NEAR-STATIONARY FRONT ACROSS OUR FAR NORTHERN COUNTIES. THE POTENTIAL DOES EXIST THAT STRONG STORMS WILL PRODUCE DAMAGING DOWN BURST WINDS. .DAYS TWO AND THREE...THURSDAY AND FRIDAY ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP EACH AFTERNOON ALONG THE SEA BREEZE...OR POSSIBLY NEAR A WEAK WIND BOUNDARY OVER OUR FAR NORTHERN COUNTIES. THE POTENTIAL DOES EXIST THAT ONE OR TWO OF THESE STRONGEST STORMS WILL PRODUCE DAMAGING DOWN BURST WINDS. .DAYS FOUR THROUGH SEVEN...SATURDAY THROUGH TUESDAY HAZARDOUS WEATHER IS NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
In the hours before
Special weather statement, Aug 12, 4:15 PM CDT, 19 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 4:15 PM CDT | Special Weather Statement | HGX | Harris | 60 min |
| Aug 12, 4:39 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Grimes | 51 min |
| Aug 12, 4:42 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery, San Jacinto, Walker | 48 min |
| Aug 12, 5:33 PM CDT | Special Marine Warning | HGX | 57 min | |
| Aug 12, 5:34 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston, Harris | 26 min |
| Aug 12, 5:50 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazos, Burleson, Washington | 24 min |
| Aug 12, 5:54 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery, San Jacinto, Walker | 28 min |
| Aug 12, 5:55 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston | 35 min |
| Aug 12, 6:20 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Fort Bend, Matagorda, Wharton | 40 min |
| Aug 12, 6:29 PM CDT | Special Weather Statement | HGX | Chambers | 61 min |
| Aug 12, 6:52 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend, Wharton | 38 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; radar from the NEXRAD Level II archive.