Alert archive / Texas / Flash Flood Warnings in 2019
Flash Flood Warning 14, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at May 7, 2019, 11:37 PM CDT for Harris County, Texas. It was in force for 113 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
- May 7, 2019, 11:37 PM CDT (04:37 UTC)
- Expired
- May 8, 2019, 1:30 AM CDT
- In force
- 113 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Harris County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 04:37 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 00:00Z, 4.6 hours before the alert went out and 213 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
- 1512 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 821 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at May 7, 10:42 PM CDT, 55 minutes earlier.
Area forecast discussion, May 7, 10:42 PM CDT, 55 minutes before
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</html>Hazardous weather outlook, May 7, 6:13 AM CDT, 17 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Houston/Galveston TX 613 AM CDT Tue May 7 2019 TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313- 335>338-081115- Austin-Brazos-Burleson-Chambers-Coastal Brazoria- Coastal Galveston-Coastal Harris-Coastal Jackson- Coastal Matagorda-Colorado-Fort Bend-Grimes-Houston- Inland Brazoria-Inland Galveston-Inland Harris-Inland Jackson- Inland Matagorda-Madison-Montgomery-Northern Liberty-Polk- San Jacinto-Southern Liberty-Trinity-Walker-Waller-Washington- Wharton- 613 AM CDT Tue May 7 2019 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Showers and thunderstorms will develop over the coast and Gulf waters before spreading inland, mostly along and west of I-45 by the early afternoon hours, and then better concentrating over our northern zones by this evening. Locally heavy rainfall, damaging wind and hail will be the main weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Strong storms are possible Wednesday into Thursday as another upper level disturbance moves across the region. This feature can also produce scattered showers and thunderstorms, and some of the storms could produce heavy rain and localized flooding. Damaging winds, hail, and isolated tornadoes will also be possible. Another upper level disturbance coupled with an approaching cold front will set the stage for additional strong thunderstorms on Friday into the weekend. The cold front will stall over Southeast Texas Friday and Saturday. A series of upper level disturbances coupled with the front and abundant moisture will create a favorable environment for heavy rain both days. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. Emergency managers should prepare for activation at various times during the upcoming week. TXZ436>438-081115- Brazoria Islands-Galveston Island and Bolivar Peninsula- Matagorda Islands- 613 AM CDT Tue May 7 2019 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Some showers and thunderstorms will be possible today, and could produce heavy rainfall, gusty winds, and hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Slightly elevated water levels will approach 3.5 feet by Wednesday morning. Coastal run-up will be possible, potentially impacting vulnerable locations such as Highway 87 and 124. Strong rip currents will also be possible along Gulf facing beaches. A series of upper level disturbances will bring periods of showers and thunderstorms to the area during the upcoming week. Some storms could be strong with gusty winds, hail and periods of heavy rain. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. Emergency managers should prepare for activation at various times during the upcoming week. GMZ330-335-350-355-370-375-081115- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Galveston Bay-Matagorda Bay- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 613 AM CDT Tue May 7 2019 This hazardous weather outlook is for portions of Southeast Texas.. .DAY ONE...Today and Tonight Some showers and thunderstorms will be possible today, and could produce heavy rainfall, gusty winds, and hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A series of upper level disturbances will bring periods of showers and thunderstorms to the area during the upcoming week. Some storms could be strong with gusty winds, hail and periods of heavy rain. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Local storm report, May 7, 8:17 PM CDT, 3 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
817 PM CDT TUE MAY 07 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0742 PM LIGHTNING PLANTERSVILLE 30.33N 95.86W
05/07/2019 GRIMES TX BROADCAST MEDIA
STRUCTURAL FIRE FROM LIGHTNING
&&
EVENT NUMBER HGX1900105
47Local storm report, May 7, 8:20 PM CDT, 3 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
820 PM CDT TUE MAY 07 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0814 PM FLASH FLOOD SUGAR LAND 29.62N 95.62W
05/07/2019 FORT BEND TX COUNTY OFFICIAL
ALL MAJOR ROADWAYS IMPASSABLE PER CITY OF SUGARLAND
&&
EVENT NUMBER HGX1900106
47Local storm report, May 7, 9:01 PM CDT, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
901 PM CDT TUE MAY 07 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 PM FLASH FLOOD FRIENDSWOOD 29.51N 95.20W
05/07/2019 GALVESTON TX NEWSPAPER
STREET FLOODING
&&
EVENT NUMBER HGX1900107
47Local storm report, May 7, 9:14 PM CDT, 2 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
914 PM CDT TUE MAY 07 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0913 PM FLASH FLOOD WEBSTER 29.53N 95.12W
05/07/2019 HARRIS TX NWS EMPLOYEE
BAY AREA BLVD FLOODED
&&
EVENT NUMBER HGX1900108
47Local storm report, May 7, 11:13 PM CDT, 24 minutes before
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</html>Local storm report, May 7, 11:15 PM CDT, 22 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 |
|---|---|---|---|---|
| May 7, 7:10 PM CDT | Areal Flood Advisory | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris | 3 hr |
| May 7, 7:31 PM CDT | Flash Flood Warning | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris | 3 hr |
| May 7, 7:39 PM CDT | Areal Flood Warning | HGX | Harris, Liberty, Montgomery | 3 hr |
| May 7, 7:51 PM CDT | River Flood Warning | HGX | Harris | 5 hr |
| May 7, 7:51 PM CDT | River Flood Warning | HGX | Harris | 4 hr |
| May 7, 7:55 PM CDT | Areal Flood Advisory | HGX | Austin, Brazoria, Colorado, Fort Bend, Matagorda, Wharton | 3 hr |
| May 7, 8:02 PM CDT | Flash Flood Watch | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris, Wharton | 6 hr |
| May 7, 8:12 PM CDT | Special Weather Statement | HGX | Harris | 48 min |
| May 7, 8:42 PM CDT | Areal Flood Advisory | HGX | Brazoria, Galveston, Harris | 3 hr |
| May 7, 9:17 PM CDT | Areal Flood Warning | HGX | Fort Bend, Harris | 118 min |
| May 7, 9:24 PM CDT | River Flood Warning | HGX | Fort Bend | 6 days |
| May 7, 9:40 PM CDT | River Flood Warning | HGX | Harris | 3 hr |
| May 7, 9:45 PM CDT | Flash Flood Warning | HGX | Brazoria, Galveston, Harris | 2 hr |
| May 7, 10:09 PM CDT | River Flood Warning | HGX | Brazoria | 10 days |
| May 7, 10:09 PM CDT | River Flood Warning | HGX | Brazoria, Fort Bend, Wharton | 11 days |
| May 7, 10:09 PM CDT | River Flood Warning | HGX | Harris, Montgomery | 4 hr |
| May 7, 10:26 PM CDT | Flash Flood Warning | HGX | Austin, Brazoria, Colorado, Fort Bend, Harris, Wharton | 3 hr |
| May 7, 10:32 PM CDT | Areal Flood Warning | HGX | Harris, Liberty, Montgomery | 15 hr |
| May 7, 10:37 PM CDT | Flash Flood Warning | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris | 3 hr |
| May 7, 10:50 PM CDT | River Flood Warning | HGX | Harris | 4 hr |
| May 7, 11:52 PM CDT | Areal Flood Warning | HGX | Brazoria, Galveston | 6 hr |
| May 8, 1:32 AM CDT | Areal Flood Warning | HGX | Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 2 more | 6 hr |
| May 8, 6:19 AM CDT | River Flood Warning | HGX | Austin, Colorado, Fort Bend, Wharton | 6 days |
| May 8, 6:23 AM CDT | River Flood Warning | HGX | Harris | 27 hr |
| May 8, 7:26 AM CDT | Areal Flood Warning | HGX | Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 2 more | 6 hr |
| May 8, 10:23 AM CDT | Small Craft Advisory | HGX | 18 hr | |
| May 8, 1:14 PM CDT | Special Weather Statement | HGX | Burleson | 31 min |
| May 8, 1:41 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Grimes, Madison | 49 min |
| May 8, 1:48 PM CDT | Tornado Warning | HGX | Brazos, Madison | 42 min |
| May 8, 2:03 PM CDT | Tornado Warning | HGX | Brazos, Burleson | 27 min |
| May 8, 2:26 PM CDT | Tornado Warning | HGX | Brazos, Grimes | 34 min |
| May 8, 2:29 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Montgomery, Walker | 46 min |
| May 8, 2:33 PM CDT | Special Weather Statement | HGX | Houston, Trinity | 42 min |
| May 8, 3:17 PM CDT | Special Weather Statement | HGX | Trinity | 13 min |
| May 8, 3:27 PM CDT | Special Weather Statement | HGX | Brazos | 33 min |
| May 8, 3:56 PM CDT | Special Weather Statement | HGX | Madison | 49 min |
| May 8, 4:02 PM CDT | Special Weather Statement | HGX | Burleson | 58 min |
| May 8, 4:24 PM CDT | Special Weather Statement | HGX | Trinity | 36 min |
| May 8, 5:47 PM CDT | Special Weather Statement | HGX | Montgomery | 28 min |
Nearby
Flash Flood Warnings in Texas, 2019Every flash flood warning in 2019
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.