Alert archive / Texas / Flash Flood Warnings in 2024

Flash Flood Warning 29, NWS Houston/Galveston, TX

May 3, 2024Harris County, Liberty County, Montgomery County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at May 3, 2024, 5:21 AM CDT for Harris County, Liberty County, Montgomery County, Texas. It was in force for 3 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 3, 2024, 5:21 AM CDT (10:21 UTC)
Expired
May 3, 2024, 8:00 AM CDT
In force
3 hr
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Flood severity
None

Counties Harris County, TX, Liberty County, TX, Montgomery County, TX

The radar

The Houston radar (KHGX), 72 km from the middle of the area, began a volume at 10:24 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, 10.4 hours before the alert went out and 196 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.

Skew-T log-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 2024-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 30 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2024-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
30 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

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 2, 6:58 PM CDT, 10 hours 23 minutes earlier.

Area forecast discussion, May 2, 6:58 PM CDT, 10 hours 23 minutes before
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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 9:36 PM CDTRiver Flood WarningHGXFort Bend, Harris15 hr
May 3, 2:54 AM CDTSpecial Weather StatementHGXMadison51 min
May 3, 3:15 AM CDTSevere Thunderstorm WarningHGXHouston, Madison, Trinity, Walker45 min
May 3, 3:18 AM CDTSpecial Marine WarningHGX87 min
May 3, 3:32 AM CDTSpecial Weather StatementHGXMontgomery28 min
May 3, 3:33 AM CDTSpecial Weather StatementHGXWaller27 min
May 3, 3:35 AM CDTSpecial Weather StatementHGXWashington25 min
May 3, 3:43 AM CDTSevere Thunderstorm WarningHGXHarris, Montgomery, Waller32 min
May 3, 3:52 AM CDTSevere Thunderstorm WarningHGXHouston, Madison, Polk, San Jacinto, Trinity, Walker38 min
May 3, 3:57 AM CDTRiver Flood WarningHGXHarris21 days
May 3, 4:04 AM CDTSevere Thunderstorm WarningHGXHarris, Montgomery26 min
May 3, 4:06 AM CDTSpecial Weather StatementHGXWashington24 min
May 3, 4:13 AM CDTSevere Thunderstorm WarningHGXMadison, Polk, San Jacinto, Trinity, Walker17 min
May 3, 4:25 AM CDTSevere Thunderstorm WarningHGXLiberty, Montgomery, San Jacinto13 min
May 3, 5:08 AM CDTSpecial Weather StatementHGXMontgomery37 min
May 3, 5:12 AM CDTSpecial Weather StatementHGXMontgomery33 min
May 3, 5:59 AM CDTFlash Flood WarningHGXLiberty2 hr
May 3, 6:20 AM CDTFlash Flood WarningHGXLiberty, Montgomery, San Jacinto7 hr
May 3, 6:50 AM CDTAreal Flood AdvisoryHGXChambers, Harris, Liberty42 min
May 3, 7:32 AM CDTFlash Flood WarningHGXChambers, Harris, Liberty4 hr
May 3, 7:41 AM CDTSpecial Marine WarningHGX64 min
May 3, 7:58 AM CDTFlash Flood WarningHGXHarris, Liberty, Montgomery3 hr
May 3, 8:13 AM CDTAreal Flood AdvisoryHGXChambers, Harris3 hr
May 3, 9:51 AM CDTAreal Flood AdvisoryHGXMontgomery, Polk, San Jacinto, Walker20 min
May 3, 10:11 AM CDTFlash Flood WarningHGXMontgomery, Polk, San Jacinto, Walker3 hr
May 3, 10:29 AM CDTRiver Flood WarningHGXHouston, Madison, Trinity, Walker15 days
May 3, 10:43 AM CDTSpecial Weather StatementHGXSan Jacinto32 min
May 3, 10:49 AM CDTSpecial Weather StatementHGXLiberty26 min
May 3, 10:52 AM CDTSpecial Weather StatementHGXWalker23 min
May 3, 11:22 AM CDTAreal Flood AdvisoryHGXGrimes, Houston, Madison, Polk, San Jacinto, Trinity and 1 more27 min
May 3, 11:33 AM CDTSpecial Weather StatementHGXHarris27 min
May 3, 11:35 AM CDTAreal Flood WarningHGXChambers, Harris, Liberty3 hr
May 3, 11:49 AM CDTFlash Flood WarningHGXGrimes, Houston, Madison, Polk, San Jacinto, Trinity and 1 more3 hr
May 3, 11:49 AM CDTSpecial Weather StatementHGXLiberty26 min
May 3, 12:32 PM CDTSpecial Weather StatementHGXLiberty28 min
May 3, 1:04 PM CDTFlash Flood Warning Considerable damage threatHGXMontgomery, Polk, San Jacinto, Walker3 hr
May 3, 1:43 PM CDTSpecial Weather StatementHGXLiberty32 min
May 3, 1:49 PM CDTFlash Flood WarningHGXHarris, Liberty, Montgomery101 min
May 3, 2:39 PM CDTSmall Craft AdvisoryHGX10 hr
May 3, 2:43 PM CDTRip Current StatementHGXBrazoria, Galveston, Matagorda30 hr
May 3, 2:50 PM CDTSpecial Weather StatementHGXLiberty25 min
May 3, 5:59 PM CDTAreal Flood WarningHGXBrazos, Chambers, Grimes, Harris, Houston, Liberty and 7 more14 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.