Alert archive / Texas / Flash Flood Watches in 2017
Flash Flood Watch 6, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood watch at Jun 5, 2017, 4:12 AM CDT for Brazoria County, Chambers County, Galveston County, Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jun 5, 2017, 4:12 AM CDT (09:12 UTC)
- Expired
- Jun 5, 2017, 9:03 AM CDT
- In force
- 5 hr
- Issued by
- NWS Houston/Galveston, TX
- Flood severity
- None
Counties Brazoria County, TX, Chambers County, TX, Galveston County, TX
The radar
The Houston radar (KHGX), 14 km from the middle of the area, began a volume at 09:15 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
Corpus Christi, TX (KCRP), launched 00:00Z, 9.2 hours before the alert went out and 296 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
- 1657 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1219 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Jun 4, 6:43 PM CDT, 9 hours 29 minutes earlier.
Area forecast discussion, Jun 4, 6:43 PM CDT, 9 hours 29 minutes before
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</html>Hazardous weather outlook, Jun 4, 5:13 AM CDT, 22 hours 59 minutes before
Hazardous Weather Outlook National Weather Service Houston/Galveston TX 513 AM CDT Sun Jun 4 2017 TXZ163-164-176>179-195>200-210>214-226-227-235>238-051015- 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- 513 AM CDT Sun Jun 4 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight A slow moving upper level disturbance will bring periods of showers and thunderstorms to the region today. Some of the rain will be locally heavy and minor flooding will be possible. Some of the stronger storms could produce a brief funnel cloud, frequent cloud to ground lightning and wind gusts around 35 mph. .DAYS TWO THROUGH SEVEN...Monday through Saturday An upper level disturbance will bring scattered showers and thunderstorms to the region. Some of the storms could again produce locally heavy rain and minor flooding. The stronger storms could again produce brief gusty winds. A chance of thunderstorms will linger on Tuesday with again the stronger storms capable of producing gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. GMZ330-335-350-355-370-375-051015- 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- 513 AM CDT Sun Jun 4 2017 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Swells propagating into the coastal waters will produce wave heights near or just above 5 feet in the offshore waters. Mariners should prepare for locally rough seas due to the swells and also from thunderstorms producing variable and gusty winds and frequent lightning. Waterspouts may be possible this morning. .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 |
|---|---|---|---|---|
| Jun 4, 7:01 PM CDT | Areal Flood Advisory | HGX | Chambers, Galveston | 119 min |
| Jun 4, 7:37 PM CDT | Special Weather Statement | HGX | Jackson | 38 min |
| Jun 5, 3:43 AM CDT | Special Marine Warning | HGX | 47 min | |
| Jun 5, 4:34 AM CDT | Special Marine Warning | HGX | 41 min | |
| Jun 5, 4:43 AM CDT | Areal Flood Advisory | HGX | Brazoria, Galveston | 62 min |
| Jun 5, 5:54 AM CDT | Areal Flood Advisory | HGX | Chambers, Galveston | 66 min |
| Jun 5, 6:05 AM CDT | Special Marine Warning | HGX | 55 min | |
| Jun 5, 6:42 AM CDT | Special Marine Warning | HGX | 63 min | |
| Jun 5, 7:11 AM CDT | Areal Flood Advisory | HGX | Jackson, Matagorda | 64 min |
| Jun 5, 7:14 AM CDT | Areal Flood Advisory | HGX | Chambers, Harris | 61 min |
| Jun 5, 7:51 AM CDT | Special Marine Warning | HGX | 39 min | |
| Jun 5, 12:14 PM CDT | Areal Flood Advisory | HGX | Austin, Fort Bend, Waller, Wharton | 61 min |
| Jun 5, 12:59 PM CDT | Areal Flood Advisory | HGX | Austin, Fort Bend, Harris, Waller | 2 hr |
| Jun 5, 2:24 PM CDT | Special Weather Statement | HGX | Colorado | 51 min |
Nearby
Flash Flood Watches in Texas, 2017Every flash flood watch 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.