Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 9, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Apr 30, 2007, 8:53 PM CDT for Jim Hogg County, Zapata County, Texas. It was in force for 2 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
- Apr 30, 2007, 8:53 PM CDT (01:53 UTC)
- Expired
- Apr 30, 2007, 11:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
Counties Jim Hogg County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 164 km from the middle of the area, began a volume at 01:56 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, 1.9 hours before the alert went out and 176 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
- 2164 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 808 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 8.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KBRO 010154 FFWBRO TXC247-505-010400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 853 PM CDT MON APR 30 2007 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN JIM HOGG COUNTY IN DEEP SOUTH TEXAS... THIS INCLUDES THE CITY OF HEBBRONVILLE... NORTHEASTERN ZAPATA COUNTY IN DEEP SOUTH TEXAS... * UNTIL 1100 PM CDT * AT 848 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM SEVERE THUNDERSTORMS OVER NORTHERN ZAPATA AND JIM HOGG COUNTIES. OVER 3 INCHES OF RAINFALL CAN BE EXPECTED IN ONE HOUR...CAUSING FLASH FLOODING. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. LAT...LON 2704 9908 2709 9847 2738 9861 2738 9902 $$ PHILO
2 follow-up statements
000 WGUS74 KBRO 010221 FFSBRO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 920 PM CDT MON APR 30 2007 TXC247-505-010400- JIM HOGG TX-ZAPATA TX- 920 PM CDT MON APR 30 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR NORTHEASTERN ZAPATA AND NORTHERN JIM HOGG COUNTIES... AT 913 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER NORTHERN JIM HOGG AND ZAPATA COUNTIES. FROM 3 TO 5 INCHES OF RAINFALL HAS BEEN RECEIVED DURING THE PAST HOUR IN THIS LOCATION. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. LAT...LON 2704 9908 2709 9847 2738 9861 2738 9902 $$ PHILO
000 WGUS74 KBRO 010240 FFSBRO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 937 PM CDT MON APR 30 2007 TXC247-505-010247- JIM HOGG TX-ZAPATA TX- 937 PM CDT MON APR 30 2007 ...THE FLASH FLOOD WARNING HAS BEEN CANCELED FOR NORTHEASTERN ZAPATA AND NORTHERN JIM HOGG COUNTIES... SEVERE THUNDERSTORMS WITH HEAVY RAINFALL HAVE MOVED SOUTH OF THE WARNED AREA. THEREFORE...THE FLASH FLOOD WARNING FOR NORTHEASTERN ZAPATA AND NORTHERN JIM HOGG COUNTIES HAS BEEN CANCELED. CONTINUE TO DRIVE CAUTIOUSLY IN NORTHERN JIM HOGG AND ZAPATA COUNTIES AS ROADWAY PONDING WILL LIKELY CONTINUE FOR THE NEXT SEVERAL HOURS. LAT...LON 2704 9908 2709 9847 2738 9861 2738 9902 $$ PHILO
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 8:08 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Zapata | 52 min |
| Apr 30, 8:48 PM CDT | Tornado Warning | BRO | Jim Hogg | 25 min |
| Apr 30, 9:00 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Zapata | 45 min |
| Apr 30, 9:25 PM CDT | Severe Thunderstorm Warning | BRO | Starr, Zapata | 28 min |
| Apr 30, 9:41 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Zapata | 34 min |
| Apr 30, 9:52 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Starr, Zapata | 38 min |
| Apr 30, 10:12 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Starr, Zapata | 48 min |
Nearby
Flash Flood Warnings in Texas, 2007Every flash flood warning in 2007
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.