Alert archive / Texas / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 9, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at May 9, 2026, 7:44 AM CDT for Starr County, Texas. It was in force for 28 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 9, 2026, 7:44 AM CDT (12:44 UTC)
- Expired
- May 9, 2026, 8:12 AM CDT
- In force
- 28 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Starr County, TX
The radar
The Brownsville radar (KBRO), 156 km from the middle of the area, began a volume at 12:47 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 |
|---|---|---|---|
| May 9, 7:55 AM CDT | HAIL 0.75 | 1 Ese Roma, TX | Public reported hail up to 0.75 of an inch on Bluebird St in Roma, TX at 7:55 AM. |
| May 9, 7:55 AM CDT | HAIL 0.75 | 1 Sse Roma, TX | Corrects previous hail report from 1 ESE Roma. Public reported hail up to 0.75 of an inch on Bluebird St in Roma, TX at 7:55 AM. |
| May 9, 7:55 AM CDT | HAIL 1 | Roma, TX | Public social media post showing hail of varying sizes up to an estimated 1 inch in Roma, TX. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 11 minutes after it went out.
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 12:00Z, 0.7 hours before the alert went out and 158 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
- 1752 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.8
The text
As transmitted.
307
WUUS54 KBRO 091244
SVRBRO
TXC427-091330-
/O.NEW.KBRO.SV.W.0009.260509T1244Z-260509T1330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
744 AM CDT Sat May 9 2026
The National Weather Service in Brownsville has issued a
* Severe Thunderstorm Warning for...
Southwestern Starr County in Deep South Texas...
* Until 830 AM CDT.
* At 743 AM CDT, a severe thunderstorm was located over Fronton, or
near Roma, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Rio Grande City, Roma, Escobares, Garciasville, La Rosita, Los
Alvarez, Fort Ringgold County Park, Garceno, Starr County Sheriffs
Office, and Roma City Hall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2654 9868 2627 9872 2630 9872 2630 9875
2631 9875 2631 9874 2633 9875 2633 9878
2637 9880 2635 9890 2639 9893 2637 9895
2640 9896 2639 9901 2641 9904 2640 9908
2643 9911 2648 9909 2652 9912 2653 9901
TIME...MOT...LOC 1243Z 276DEG 27KT 2642 9907
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
60-BE2 follow-up statements
846
WWUS54 KBRO 091258
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
758 AM CDT Sat May 9 2026
TXC427-091330-
/O.CON.KBRO.SV.W.0009.000000T0000Z-260509T1330Z/
Starr TX-
758 AM CDT Sat May 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM CDT
FOR SOUTHWESTERN STARR COUNTY...
At 758 AM CDT, a severe thunderstorm was located over La Rosita,
moving east at 35 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Rio Grande City, Roma, Escobares, Garciasville, La Rosita, Los
Alvarez, Fort Ringgold County Park, Garceno, Starr County Sheriffs
Office, and Roma City Hall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 2627 9872 2630 9872 2630 9875 2631 9875
2631 9874 2633 9875 2633 9878 2637 9880
2635 9890 2639 9893 2637 9895 2640 9896
2639 9901 2641 9904 2651 9902 2652 9868
TIME...MOT...LOC 1258Z 280DEG 30KT 2639 9894
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
60-BE732
WWUS54 KBRO 091312
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
812 AM CDT Sat May 9 2026
TXC427-091322-
/O.CAN.KBRO.SV.W.0009.000000T0000Z-260509T1330Z/
Starr TX-
812 AM CDT Sat May 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN STARR COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However, small hail and
heavy rain are still possible with this thunderstorm.
&&
LAT...LON 2627 9872 2630 9872 2630 9875 2631 9875
2631 9874 2633 9875 2633 9878 2637 9880
2635 9890 2639 9893 2637 9895 2640 9896
2639 9901 2641 9904 2651 9902 2652 9868
TIME...MOT...LOC 1311Z 276DEG 27KT 2638 9882
$$
60-BEWhat 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 May 9, 6:11 AM CDT, 1 hour 33 minutes earlier. Its key messages:
- Updated at 607 AM CDT Sat May 9 2026 Key Messages: * There is a continued Marginal Risk (Level 1 of 5) of isolated severe thunderstorms and a Marginal Risk (Level 1 of 4) of isolated flash flooding through tonight into early Saturday across Zapata, Jim Hogg, Starr, and western Hidalgo counties. * These risks remain conditional, but if severe thunderstorms develop, there is a 5% probability of large (1+ inch) hail, damaging winds (60+ mph) and excessive rainfall. * A moderate risk of rip currents will continue into this weekend. * Minor to Moderate (Levels 1 of 4 and 2 of 4) Heat Risks through the weekend.
Area forecast discussion, May 9, 6:11 AM CDT, 1 hour 33 minutes before
Area Forecast Discussion...UPDATED National Weather Service Brownsville TX 611 AM CDT Sat May 9 2026 ...New AVIATION... .KEY MESSAGES... Updated at 607 AM CDT Sat May 9 2026 Key Messages: * There is a continued Marginal Risk (Level 1 of 5) of isolated severe thunderstorms and a Marginal Risk (Level 1 of 4) of isolated flash flooding through tonight into early Saturday across Zapata, Jim Hogg, Starr, and western Hidalgo counties. * These risks remain conditional, but if severe thunderstorms develop, there is a 5% probability of large (1+ inch) hail, damaging winds (60+ mph) and excessive rainfall. * A moderate risk of rip currents will continue into this weekend. * Minor to Moderate (Levels 1 of 4 and 2 of 4) Heat Risks through the weekend. && .DISCUSSION... Issued at 1013 PM CDT Fri May 8 2026 As mentioned for tonight, the severe weather threat remains marginal for portions of the mid Valley into the Ranchlands. Most CAMs continue try to develop Sierra Madre convection into tonight that eventually makes it way into Deep South Texas. Generally these models have been highly variable, some bringing in convection by midnight to the Rio Grande Plains, and others more near daybreak closer to the mid to lower Valley. So far, any development has dissipated before reaching the Rio Grande. PWATs this evening from the sounding at BRO have fallen to 1.68 inches, though forecast models continue to show higher PWATs near 2 inches across The upper Valley into the Ranchlands. If any showers or thunderstorms develop and make it to Deep South Texas, heavy rain will be possible. Confidence in both severe weather and/or flooding rainfall remains low to medium. A mid-level trough will continue to move eastward through Texas this weekend, with high pressure returning by early next week. At the surface the stalled frontal boundary is slowly working its way north before finally exiting the region on Saturday. Rain chances will continue through Saturday afternoon with conditions drying out Saturday night into Sunday. Another front will move south through Deep South Texas on Sunday night which will once again increase rain chances Sunday night into Monday morning. Temperatures will be generally above normal through the forecast period, though a slight cool off to near or just slightly below normal for Monday and Tuesday in the wake of a cold front. Minor to Moderate Heat Risks are expected across Deep South Texas through the weekend. There remains a moderate risk of life-threatening rip currents into this weekend. && .AVIATION... (12Z TAFS) Issued at 607 AM CDT Sat May 9 2026 A deteriorating complex of thunderstorms will continue to move from west to east across the region through the next few hours, producing a VCTS at the aerodromes. Otherwise, MVFR to VFR will prevail with light winds and generally mostly cloudy skies. && .MARINE... Issued at 1013 PM CDT Fri May 8 2026 Generally favorable marine conditions will prevail through the forecast period. Wave heights of 2 to 4 inches are expected with 6 to 7 second periods. There does remain a chance for showers and thunderstorms tonight into Saturday morning that could lead to locally enhanced winds and seas. && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 90 77 91 77 / 20 10 10 30 HARLINGEN 89 74 92 75 / 20 0 10 30 MCALLEN 90 76 93 76 / 20 10 10 30 RIO GRANDE CITY 90 75 94 74 / 30 10 10 40 SOUTH PADRE ISLAND 83 78 84 78 / 20 10 10 30 BAYVIEW/PORT ISABEL 88 76 89 77 / 20 10 10 30 && .BRO WATCHES/WARNINGS/ADVISORIES...None. &&
In the hours before
Special weather statement, May 9, 7:33 AM CDT, 11 minutes before
Special Weather Statement
National Weather Service Brownsville TX
733 AM CDT Sat May 9 2026
TXZ252-091315-
Starr TX-
733 AM CDT Sat May 9 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN STARR COUNTY
THROUGH 815 AM CDT...
At 732 AM CDT, Doppler radar was tracking a strong thunderstorm near
Fronton, or 9 miles west of Roma, moving east at 35 mph.
HAZARD...Wind gusts up to 50 mph and nickel 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...
Rio Grande City, Roma, Escobares, El Sauz, La Rosita, Garciasville,
Los Alvarez, Fort Ringgold County Park, Garceno, and Starr County
Sheriffs Office.
This includes US Highway 83 between mile markers 794 and 826.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2658 9916 2659 9871 2627 9872 2630 9872
2631 9876 2632 9874 2633 9875 2633 9878
2637 9880 2635 9890 2639 9893 2637 9895
2640 9896 2639 9901 2641 9904 2640 9908
2643 9911 2647 9909 2650 9910 2654 9917
TIME...MOT...LOC 1232Z 277DEG 28KT 2642 9915
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
60-BEThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 2:33 AM CDT | Severe Thunderstorm Warning | BRO | Zapata | 42 min |
| May 9, 3:11 AM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg, Zapata | 21 min |
| May 9, 7:33 AM CDT | Special Weather Statement | BRO | Starr | 42 min |
| May 9, 8:08 AM CDT | Areal Flood Advisory | BRO | Starr | 93 min |
| May 9, 8:15 AM CDT | Special Weather Statement | BRO | Starr | 45 min |
| May 9, 9:08 AM CDT | Special Weather Statement | BRO | Hidalgo | 52 min |
| May 9, 9:24 AM CDT | Severe Thunderstorm Warning | BRO | Cameron, Hidalgo, Willacy | 51 min |
| May 9, 9:29 AM CDT | Special Weather Statement | BRO | Willacy | 46 min |
| May 9, 9:40 AM CDT | Areal Flood Advisory | BRO | Hidalgo | 53 min |
| May 9, 10:03 AM CDT | Severe Thunderstorm Warning | BRO | Cameron, Willacy | 42 min |
| May 9, 10:19 AM CDT | Special Marine Warning | BRO | 56 min | |
| May 9, 10:38 AM CDT | Severe Thunderstorm Warning | BRO | Cameron | 39 min |
| May 9, 11:12 AM CDT | Special Marine Warning | BRO | 33 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.