Alert archive / Texas / Tornado Warnings in 1999
Tornado Warning 13, NWS Brownsville, TX
NWS Brownsville, TX issued this tornado warning at Aug 24, 1999, 12:13 AM CDT for Cameron County, Hidalgo County, Texas. It was in force for 62 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
- Aug 24, 1999, 12:13 AM CDT (05:13 UTC)
- Expired
- Aug 24, 1999, 1:15 AM CDT
- In force
- 62 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
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 05:12 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
Brownsville Intl, TX (KBRO), launched 00:00Z, 5.2 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
- 3593 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBRO 240515 TORBRO TXC061-215-240615- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 1213 AM CDT TUE AUG 24 1999 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL CAMERON COUNTY IN TEXAS SOUTHEASTERN HIDALGO COUNTY IN TEXAS THIS INCLUDES THE CITIES OF...DONNA...MERCEDES...WESLACO * UNTIL 115 AM CDT * AT 1206 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH A POSSIBLE TORNADO ABOUT 20 MILES SOUTH OF HIDALGO...MOVING NORTHEAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE... 6 MILES SOUTHWEST OF MERCEDES...6 MILES SOUTH OF WESLACO...9 MILES SOUTHEAST OF DONNA AT 115 AM CDT DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. PHILO
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 9:50 PM CDT | Flash Flood Warning | BRO | Brooks, Kenedy | 4 hr |
| Aug 23, 10:10 PM CDT | Flash Flood Warning | BRO | Hidalgo | 3 hr |
| Aug 23, 10:20 PM CDT | Tornado Warning | BRO | Hidalgo | 40 min |
| Aug 23, 11:07 PM CDT | Tornado Warning | BRO | Cameron, Hidalgo, Willacy | 53 min |
Nearby
Tornado Warnings in Texas, 1999Every tornado warning in 1999Tornadoes in 1999
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.