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 Jul 9, 2017, 2:20 PM CDT for 4 counties in Texas. It was in force for 40 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
- Jul 9, 2017, 2:20 PM CDT (19:20 UTC)
- Expired
- Jul 9, 2017, 3:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Houston/Galveston, TX
Counties Houston County, TX, Madison County, TX, Trinity County, TX, Walker County, TX
The radar
The Ft Hood radar (KGRK), 176 km from the middle of the area, began a volume at 19:23 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
Shreveport, LA (KBAD), launched 12:00Z, 7.3 hours before the alert went out and 229 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
- 410 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 1023 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 9, 1:59 PM CDT, 21 minutes earlier.
Area forecast discussion, Jul 9, 1:59 PM CDT, 21 minutes before
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</html>Hazardous weather outlook, Jul 9, 3:43 AM CDT, 10 hours 37 minutes before
Hazardous Weather Outlook National Weather Service Houston/Galveston TX 343 AM CDT Sun Jul 9 2017 TXZ163-164-176>179-195>200-210>214-226-227-235>238-100845- 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- 343 AM CDT Sun Jul 9 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Scattered showers and thunderstorms will again be possible today. The storms could be slow moving and locally heavy rain will be possible in the stronger storms. In addition, some of the stronger storms could produce brief gusty winds late this afternoon. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday Scattered showers and thunderstorms will persist on Monday and Tuesday. Storm motion will again be slow so a few of the stronger storms could produce locally heavy rain. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. GMZ330-335-350-355-370-375-100845- 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- 343 AM CDT Sun Jul 9 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Special weather statement, Jul 9, 1:33 PM CDT, 47 minutes before
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</html>Special weather statement, Jul 9, 2:20 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 7:00 PM CDT | Special Weather Statement | HGX | Houston | 45 min |
| Jul 8, 7:37 PM CDT | Special Weather Statement | HGX | San Jacinto | 23 min |
| Jul 8, 7:55 PM CDT | Special Weather Statement | HGX | Montgomery | 35 min |
| Jul 8, 8:06 PM CDT | Special Weather Statement | HGX | Houston | 39 min |
| Jul 8, 8:15 PM CDT | Special Weather Statement | HGX | Polk | 45 min |
| Jul 8, 8:49 PM CDT | Areal Flood Advisory | HGX | Liberty, Polk, San Jacinto | 56 min |
| Jul 8, 8:53 PM CDT | Severe Thunderstorm Warning | HGX | Liberty, Polk, San Jacinto | 37 min |
| Jul 8, 10:53 PM CDT | Special Marine Warning | HGX | 37 min | |
| Jul 9, 1:33 PM CDT | Special Weather Statement | HGX | Galveston | 42 min |
| Jul 9, 2:53 PM CDT | Special Weather Statement | HGX | Harris | 37 min |
| Jul 9, 3:31 PM CDT | Special Weather Statement | HGX | Trinity | 74 min |
| Jul 9, 3:46 PM CDT | Special Weather Statement | HGX | Madison, Walker | 44 min |
| Jul 9, 4:24 PM CDT | Special Weather Statement | HGX | San Jacinto | 51 min |
| Jul 9, 4:33 PM CDT | Special Weather Statement | HGX | Trinity | 42 min |
| Jul 9, 4:59 PM CDT | Special Weather Statement | HGX | San Jacinto | 46 min |
| Jul 9, 5:05 PM CDT | Areal Flood Advisory | HGX | Liberty | 55 min |
| Jul 9, 5:09 PM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto, Trinity | 51 min |
| Jul 9, 5:22 PM CDT | Areal Flood Advisory | HGX | Polk, San Jacinto | 113 min |
| Jul 9, 5:25 PM CDT | Severe Thunderstorm Warning | HGX | San Jacinto | 35 min |
| Jul 9, 5:42 PM CDT | Special Weather Statement | HGX | Polk | 33 min |
| Jul 9, 6:04 PM CDT | Special Weather Statement | HGX | Montgomery | 26 min |
| Jul 9, 6:16 PM CDT | Special Weather Statement | HGX | Brazos | 29 min |
| Jul 9, 6:19 PM CDT | Special Weather Statement | HGX | Polk | 26 min |
| Jul 9, 6:35 PM CDT | Special Weather Statement | HGX | Montgomery | 25 min |
| Jul 9, 6:38 PM CDT | Special Weather Statement | HGX | Burleson | 52 min |
| Jul 9, 6:44 PM CDT | Flash Flood Warning | HGX | Polk, San Jacinto | 3 hr |
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.