Alert archive / Texas / Flash Flood Warnings in 2024
Flash Flood Warning 38, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at May 5, 2024, 6:13 AM CDT for 6 counties in Texas. It was in force for 4 hr. 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 5, 2024, 6:13 AM CDT (11:13 UTC)
- Expired
- May 5, 2024, 9:46 AM CDT
- In force
- 4 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Grimes County, TX, Houston County, TX, Madison County, TX, San Jacinto County, TX, Trinity County, TX, Walker County, TX
The radar
The Houston radar (KHGX), 162 km from the middle of the area, began a volume at 11:16 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, 11.2 hours before the alert went out and 239 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
- 1172 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 881 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.6
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 5, 2:29 AM CDT, 3 hours 44 minutes earlier.
Area forecast discussion, May 5, 2:29 AM CDT, 3 hours 44 minutes before
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Special weather statement, May 5, 1:16 AM CDT, 4 hours 57 minutes before
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</html>Special weather statement, May 5, 4:32 AM CDT, 1 hour 41 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
432 AM CDT Sun May 5 2024
TXZ197-198-210>212-226-051015-
Washington TX-Waller TX-Grimes TX-Wharton TX-Colorado TX-Austin TX-
432 AM CDT Sun May 5 2024
...STRONG THUNDERSTORMS WILL IMPACT COLORADO...NORTH CENTRAL
WHARTON...AUSTIN...SOUTHWESTERN GRIMES...WASHINGTON AND WESTERN
WALLER COUNTIES THROUGH 515 AM CDT...
At 432 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles southwest of Washington to near
Hallettsville. Movement was east at 35 mph.
HAZARD...Wind gusts up to 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Brenham, Sealy, Hempstead, Bellville, Columbus, Eagle Lake, Shelby,
Weimar, Pine Island, San Felipe, Industry, Burton, Carmine, New Ulm,
Quarry, Cat Spring, Sheridan, Altair, Frelsburg, and Garwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 2996 9657 3004 9662 3011 9663 3013 9665
3015 9665 3016 9669 3015 9672 3029 9665
3022 9603 2942 9616 2943 9665 2958 9679
2958 9684 2961 9684 2963 9687
TIME...MOT...LOC 0932Z 277DEG 45KT 3024 9623 2948 9696
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
JMSpecial weather statement, May 5, 4:46 AM CDT, 1 hour 27 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
446 AM CDT Sun May 5 2024
TXZ163-164-176-177-195>199-212-051030-
Madison TX-Walker TX-Brazos TX-Washington TX-Waller TX-Grimes TX-
Burleson TX-Montgomery TX-Houston TX-Trinity TX-
446 AM CDT Sun May 5 2024
...STRONG THUNDERSTORMS WILL IMPACT WEST CENTRAL TRINITY...GRIMES...
SOUTHEASTERN BURLESON...BRAZOS...NORTHEASTERN WASHINGTON...
NORTHWESTERN MONTGOMERY...SOUTHWESTERN HOUSTON...MADISON...
NORTHEASTERN WALLER AND WALKER COUNTIES THROUGH 530 AM CDT...
At 446 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles south of Fort Boggy State Park to 7
miles southwest of Washington. Movement was northeast at 35 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
College Station, Bryan, Huntsville, Navasota, Madisonville,
Pinehurst, Washington, Magnolia, Somerville, Montgomery, Snook,
Bedias, Kurten, Wixon Valley, Millican, Anderson, Todd Mission, Lake
Somerville Dam, Kyle Field, and Huntsville State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3110 9536 3017 9569 3024 9657 3099 9621
3109 9598 3109 9576 3112 9577
TIME...MOT...LOC 0946Z 245DEG 33KT 3109 9597 3024 9622
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
JMSpecial weather statement, May 5, 5:32 AM CDT, 41 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
532 AM CDT Sun May 5 2024
TXZ197-199-210>213-226-227-051100-
Washington TX-Waller TX-Wharton TX-Colorado TX-Inland Harris TX-
Fort Bend TX-Montgomery TX-Austin TX-
532 AM CDT Sun May 5 2024
...STRONG THUNDERSTORMS WILL IMPACT EASTERN COLORADO...NORTHEASTERN
WHARTON...AUSTIN...SOUTHEASTERN WASHINGTON...WESTERN FORT BEND...
SOUTHWESTERN MONTGOMERY...WALLER AND NORTHWESTERN HARRIS COUNTIES
THROUGH 600 AM CDT...
At 531 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Hockley to 10 miles northwest of Pierce.
Movement was east at 30 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Rosenberg, Katy, Richmond, Tomball, Wharton, Jersey Village, Sealy,
Hempstead, Prairie View, Brookshire, Bellville, Eagle Lake, Mission
Bend, Pecan Grove, Eldridge / West Oaks, Addicks Park Ten, Spring
Branch West, Hockley, Needville, and Waller.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3008 9544 2925 9587 2945 9665 3014 9627
TIME...MOT...LOC 1031Z 278DEG 43KT 3007 9583 2937 9629
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
JMSpecial weather statement, May 5, 5:47 AM CDT, 26 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
547 AM CDT Sun May 5 2024
TXZ163-164-176-177-179-051130-
Madison TX-Walker TX-Polk TX-Houston TX-Trinity TX-
547 AM CDT Sun May 5 2024
...STRONG THUNDERSTORMS WILL IMPACT TRINITY...HOUSTON...NORTHEASTERN
MADISON...NORTHERN POLK AND NORTHEASTERN WALKER COUNTIES THROUGH 630
AM CDT...
At 547 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Elkhart to near Riverside.
Movement was east at 35 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Crockett, Austonio, Apple Springs, Trinity, Corrigan, Grapeland,
Groveton, Lovelady, Kennard, Latexo, Pennington, Moscow, Weches,
Centralia, and Mound City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3158 9517 3152 9510 3147 9510 3144 9501
3138 9495 3134 9496 3133 9490 3128 9488
3126 9490 3123 9486 3115 9486 3106 9456
3101 9466 3090 9463 3094 9564 3129 9568
3134 9566 3138 9569 3151 9571 3157 9549
TIME...MOT...LOC 1047Z 266DEG 39KT 3155 9565 3076 9537
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
JMSpecial weather statement, May 5, 6:01 AM CDT, 12 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
601 AM CDT Sun May 5 2024
TXZ199-210>213-226-227-051145-
Waller TX-Wharton TX-Colorado TX-Inland Harris TX-Fort Bend TX-
Montgomery TX-Austin TX-
601 AM CDT Sun May 5 2024
...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL COLORADO...
NORTHEASTERN WHARTON...SOUTHEASTERN AUSTIN...FORT BEND...SOUTHEASTERN
MONTGOMERY...SOUTHERN WALLER AND CENTRAL HARRIS COUNTIES THROUGH 645
AM CDT...
At 601 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Pinehurst to Kendleton. Movement was east
at 35 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Sugar Land, Missouri City, Rosenberg, Stafford, Bellaire, Humble,
West University Place, Katy, Richmond, Jersey Village, Sealy, Prairie
View, Brookshire, Hunters Creek Village, Eagle Lake, Bunker Hill
Village, Piney Point Village, Downtown Houston, Greenway / Upper
Kirby Area, and Spring Branch North.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3004 9515 2935 9564 2948 9657 3008 9600
TIME...MOT...LOC 1101Z 265DEG 33KT 3023 9561 2944 9601
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
JMThe office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 10:50 PM CDT | Special Weather Statement | HGX | Grimes | 40 min |
| May 4, 11:21 PM CDT | Special Weather Statement | HGX | Walker | 24 min |
| May 4, 11:23 PM CDT | Special Weather Statement | HGX | Trinity | 37 min |
| May 5, 12:09 AM CDT | Special Weather Statement | HGX | Trinity | 51 min |
| May 5, 12:29 AM CDT | Special Weather Statement | HGX | Walker | 46 min |
| May 5, 12:32 AM CDT | Special Weather Statement | HGX | Madison | 43 min |
| May 5, 12:34 AM CDT | Severe Thunderstorm Warning | HGX | Houston, Madison, Trinity, Walker | 41 min |
| May 5, 12:48 AM CDT | Areal Flood Advisory | HGX | Grimes, Houston, Madison, Montgomery, Polk, San Jacinto and 2 more | 6 hr |
| May 5, 12:49 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto, Trinity, Walker | 26 min |
| May 5, 1:16 AM CDT | Special Weather Statement | HGX | Polk | 29 min |
| May 5, 2:13 AM CDT | Rip Current Statement | HGX | Brazoria, Galveston, Matagorda | 70 hr |
| May 5, 4:32 AM CDT | Special Weather Statement | HGX | Austin, Colorado, Washington | 43 min |
| May 5, 4:46 AM CDT | Special Weather Statement | HGX | Brazos, Grimes, Madison, Walker | 44 min |
| May 5, 5:08 AM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Harris, Houston, Madison, Montgomery and 4 more | 37 min |
| May 5, 5:32 AM CDT | Special Weather Statement | HGX | Austin, Colorado, Fort Bend, Waller | 28 min |
| May 5, 5:44 AM CDT | Severe Thunderstorm Warning | HGX | Grimes, Harris, Houston, Liberty, Madison, Montgomery and 5 more | 46 min |
| May 5, 5:47 AM CDT | Special Weather Statement | HGX | Houston, Trinity | 43 min |
| May 5, 5:53 AM CDT | Areal Flood Advisory | HGX | Brazos, Grimes, Harris, Montgomery, Walker, Waller and 1 more | 67 min |
| May 5, 6:01 AM CDT | Special Weather Statement | HGX | Fort Bend, Harris, Waller | 44 min |
| May 5, 6:31 AM CDT | Special Weather Statement | HGX | Montgomery, Polk, San Jacinto | 44 min |
| May 5, 6:44 AM CDT | Flash Flood Warning | HGX | Montgomery, Polk, San Jacinto, Trinity, Walker | 3 hr |
| May 5, 6:53 AM CDT | Areal Flood Advisory | HGX | Brazos, Grimes, Harris, Liberty, Montgomery, San Jacinto and 3 more | 3 hr |
| May 5, 8:07 AM CDT | Special Weather Statement | HGX | Fort Bend | 23 min |
| May 5, 9:46 AM CDT | Areal Flood Warning | HGX | Grimes, Houston, Madison, San Jacinto, Trinity, Walker | 4 hr |
| May 5, 9:48 AM CDT | Areal Flood Warning | HGX | Montgomery, Polk, San Jacinto, Trinity, Walker | 4 hr |
| May 5, 9:58 AM CDT | Areal Flood Advisory | HGX | Austin, Chambers, Fort Bend, Harris, Liberty, Montgomery and 1 more | 2 hr |
| May 5, 9:59 AM CDT | Special Weather Statement | HGX | Harris | 31 min |
| May 5, 10:46 AM CDT | River Flood Warning | HGX | Polk, San Jacinto | 26 hr |
| May 5, 10:52 AM CDT | Special Marine Warning | HGX | 23 min | |
| May 5, 11:26 AM CDT | Special Weather Statement | HGX | Jackson | 34 min |
| May 5, 11:58 AM CDT | Areal Flood Warning | HGX | Brazos, Grimes | 48 hr |
| May 5, 12:14 PM CDT | Special Weather Statement | HGX | Colorado | 31 min |
| May 5, 12:45 PM CDT | Special Weather Statement | HGX | Jackson | 30 min |
| May 5, 12:54 PM CDT | Severe Thunderstorm Warning | HGX | Jackson | 24 min |
| May 5, 1:25 PM CDT | Areal Flood Advisory | HGX | Austin, Colorado | 3 hr |
| May 5, 1:39 PM CDT | Special Weather Statement | HGX | Matagorda | 36 min |
| May 5, 2:21 PM CDT | Special Weather Statement | HGX | Brazoria | 24 min |
| May 5, 2:53 PM CDT | Special Weather Statement | HGX | Colorado | 37 min |
| May 5, 3:04 PM CDT | Special Marine Warning | HGX | 26 min | |
| May 5, 4:33 PM CDT | Areal Flood Advisory | HGX | Austin, Colorado, Fort Bend, Wharton | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2024Every flash flood warning in 2024
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.