Alert archive / Texas / Special Weather Statements in 2017
Special Weather Statement, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this special weather statement at Aug 2, 2017, 12:34 PM CDT for Liberty County, Texas. It was in force for 26 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 2, 2017, 12:34 PM CDT (17:34 UTC)
- Expired
- Aug 2, 2017, 1:00 PM CDT
- In force
- 26 min
- Issued by
- NWS Houston/Galveston, TX
County Liberty County, TX
The radar
The Houston radar (KHGX), 65 km from the middle of the area, began a volume at 17:33 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
Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.6 hours before the alert went out and 184 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
- 662 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 12:28 PM CDT, 6 minutes earlier.
Area forecast discussion, Aug 2, 12:28 PM CDT, 6 minutes before
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<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>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>Hazardous weather outlook, Aug 2, 6:37 AM CDT, 5 hours 57 minutes before
Hazardous Weather Outlook National Weather Service Houston/Galveston TX 637 AM CDT Wed Aug 2 2017 TXZ163-164-176>179-195>200-210>214-226-227-235>238-031145- Austin-Brazoria-Brazos-Burleson-Chambers-Colorado-Fort Bend- Galveston-Grimes-Harris-Houston-Jackson-Liberty-Madison-Matagorda- Montgomery-Polk-San Jacinto-Trinity-Walker-Waller-Washington- Wharton- 637 AM CDT Wed Aug 2 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Scattered to numerous thunderstorms will be possible across Southeast Texas today. Deep moisture from the Gulf along with a strong upper level disturbance approaching from the north will help to produce these storms. Some of these thunderstorms will be capable of brief heavy rain. Rainfall totals should average from 1 to 2 inches with isolated amounts of 3 to 5 inches possible. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Scattered thunderstorms will be possible across Southeast Texas Thursday through Monday. Some of these thunderstorms may be capable of brief heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today. GMZ330-335-350-355-370-375-031145- Coastal waters from Freeport to the Matagorda Ship Channel out 20 NM-Coastal waters from High Island to Freeport out 20 NM- Galveston Bay-Matagorda Bay- Waters from Freeport to the Matagorda Ship Channel from 20 to 60 NM-Waters from High Island to Freeport from 20 to 60 NM- 637 AM CDT Wed Aug 2 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Scattered thunderstorms will be possible across the Upper Texas coastal waters today. Some of these thunderstorms may be capable of producing locally higher winds and waves. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Scattered thunderstorms will be possible across the Upper Texas coastal waters through Monday. Some of these thunderstorms may be capable of producing locally higher winds and waves. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Special weather statement, Aug 2, 12:34 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Houston/Galveston TX 1234 PM CDT WED AUG 2 2017 TXZ199-200-213-021800- Liberty TX-Harris TX-Montgomery TX- 1234 PM CDT WED AUG 2 2017 ...SPECIAL WEATHER STATEMENT... At 1233 PM CDT, Doppler radar was tracking a strong thunderstorm over Kingwood, moving east at 15 mph. Winds in excess of 30 mph will be possible with this storm. Heavy rainfall can also be expected with this storm. Locations impacted include... Humble, southwestern Liberty, Dayton, Kingwood, Roman Forest, Woodbranch, Plum Grove, Kenefick, Dayton Lakes, Lake Houston, northern Atascocita, New Caney and Porter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. If on or near Lake Houston, get out of the water and move indoors or inside a vehicle. Remember, lightning can strike out to 10 miles from the parent thunderstorm. If you can hear thunder, you are close enough to be struck by lightning. Move to safe shelter now! Do not be caught on the water in a thunderstorm. && LAT...LON 3002 9530 3019 9525 3015 9481 2989 9488 TIME...MOT...LOC 1733Z 282DEG 13KT 3009 9520 Hathaway
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 10:57 AM CDT | Areal Flood Advisory | HGX | Harris | 63 min |
| Aug 2, 11:18 AM CDT | Areal Flood Advisory | HGX | Harris | 57 min |
| Aug 2, 11:22 AM CDT | Areal Flood Advisory | HGX | Polk, San Jacinto, Trinity, Walker | 53 min |
| Aug 2, 11:44 AM CDT | Areal Flood Advisory | HGX | Harris | 61 min |
| Aug 2, 12:06 PM CDT | Areal Flood Advisory | HGX | Liberty, Montgomery, Polk, San Jacinto, Walker | 54 min |
| Aug 2, 12:45 PM CDT | Areal Flood Advisory | HGX | Liberty | 60 min |
| Aug 2, 12:48 PM CDT | Areal Flood Advisory | HGX | Harris, Liberty, Montgomery | 57 min |
| Aug 2, 1:02 PM CDT | Areal Flood Advisory | HGX | Liberty, San Jacinto | 58 min |
| Aug 2, 1:18 PM CDT | Areal Flood Advisory | HGX | Fort Bend, Harris | 57 min |
| Aug 2, 1:32 PM CDT | Areal Flood Advisory | HGX | Chambers, Liberty | 58 min |
| Aug 2, 2:01 PM CDT | Areal Flood Advisory | HGX | Harris | 59 min |
| Aug 2, 2:21 PM CDT | Areal Flood Advisory | HGX | Brazoria, Chambers, Galveston, Harris | 54 min |
| Aug 2, 2:24 PM CDT | Areal Flood Advisory | HGX | Liberty | 66 min |
| Aug 2, 2:44 PM CDT | Areal Flood Advisory | HGX | Fort Bend, Harris, Waller | 61 min |
| Aug 2, 3:25 PM CDT | Areal Flood Advisory | HGX | Brazoria, Fort Bend, Matagorda, Wharton | 65 min |
| Aug 2, 3:25 PM CDT | Flash Flood Warning | HGX | Waller | 65 min |
| Aug 2, 5:04 PM CDT | Special Marine Warning | HGX | 41 min |
Nearby
Special Weather Statements in Texas, 2017Every special weather statement in 2017
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.