Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 31, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Sep 19, 2002, 10:52 PM CDT for Cameron County, Hidalgo County, Texas. It was in force for 68 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 19, 2002, 10:52 PM CDT (03:52 UTC)
- Expired
- Sep 20, 2002, 12:00 AM CDT
- In force
- 68 min
- Issued by
- NWS Brownsville, TX
- Area
- Counties, with a storm outline in the text
Counties Cameron County, TX, Hidalgo County, TX
The radar
The Brownsville radar (KBRO), 56 km from the middle of the area, began a volume at 03:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 19, 11:00 PM CDT | Thunderstorm Wind 65 E | Mercedes, TX | Strong thunderstorm winds downed trees and damaged power lines, resulting in loss of power to residents. |
| Sep 19, 11:17 PM CDT | Thunderstorm Wind 65 E | La Feria, TX | Strong thunderstorm winds downed trees and damaged power lines, resulting in loss of power to residents. |
| Sep 19, 11:40 PM CDT | Thunderstorm Wind 75 E | San Benito, TX | Several power poles were downed by strong thunderstorm winds, resulting in loss of power for residents in San Benito. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Brownsville Intl, TX (KBRO), launched 00:00Z, 3.9 hours before the alert went out and 59 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
- 3866 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.5
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 19, 8:55 PM CDT, 1 hour 57 minutes earlier.
Area forecast discussion, Sep 19, 8:55 PM CDT, 1 hour 57 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 855 PM CDT THU SEP 19 2002 BROWNSVILLE DOPPLER RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS MOVING TOWARD THE DEEP SOUTH TEXAS COASTLINE. THIS IS IN ASSOCIATION WITH A COLD FRONT EVEN THOUGH THE COOLER AIR AND THE LOWER DEW POINTS ARE FARTHER NORTH. ONCE THIS FRONTAL BOUNDARY MOVES THROUGH THE AREA EXPECT THE SHOWERS AND THUNDERSTORMS TO DECREASE LATER TONIGHT. WILL UPDATE THE FORECAST SLIGHTLY TO DECREASE SHOWERS SHORTLY AFTER MIDNIGHT. OTHER THEN THAT PREVIOUS FORECAST LOOKS GOOD. NO OTHER UPDATES EXPECTED TONIGHT. MARINE...BOY020 SHOWED A SOUTHEAST WIND AT 16 KNOTS WITH 5 FOOT SEAS. WILL KEEP THE SMALL CRAFT ADVISORY AT THIS TIME WITH FRONTAL PASSAGE LATER TONIGHT. .UPDATED NUMBERS... BRO EU 075/086 067/088 067 50/20/00/00/00 HRL EU 074/087 066/089 066 50/20/00/00/00 MFE BU 075/090 067/091 067 50/20/00/00/00 RGC BU 073/091 065/092 065 50/20/00/00/00 SPI EU 078/085 074/086 072 50/20/00/00/00 SYNOPTIC-AVIATION-MARINE...65 MESO...ABBOTT INTERNET ADDRESS...WWW.SRH.NOAA.GOV/BRO .BRO...SCA FOR TONIGHT GMZ150-155-170-175.
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 10:38 PM CDT | Flash Flood Warning | BRO | Willacy | 112 min |
| Sep 19, 10:41 PM CDT | Special Marine Warning | BRO | 3 hr | |
| Sep 19, 11:23 PM CDT | Severe Thunderstorm Warning | BRO | Cameron, Willacy | 37 min |
| Sep 19, 11:26 PM CDT | Severe Thunderstorm Warning | BRO | Cameron, Willacy | 64 min |
| Sep 19, 11:56 PM CDT | Severe Thunderstorm Warning | BRO | Cameron | 30 days |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.