Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 2, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Feb 19, 2017, 8:14 PM CST for Zapata County, Texas. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Feb 19, 2017, 8:14 PM CST (02:14 UTC)
- Expired
- Feb 19, 2017, 9:00 PM CST
- In force
- 46 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 196 km from the middle of the area, began a volume at 02:14 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, 2.2 hours before the alert went out and 209 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
- 1800 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 9.8
The text
As transmitted.
850
WUUS54 KBRO 200214
SVRBRO
TXC505-200300-
/O.NEW.KBRO.SV.W.0002.170220T0214Z-170220T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
814 PM CST SUN FEB 19 2017
The National Weather Service in Brownsville has issued a
* Severe Thunderstorm Warning for...
Northern Zapata County in Deep South Texas...
* Until 900 PM CST
* At 813 PM CST, severe thunderstorms were located along a line
extending from 6 miles southeast of Rio Bravo to 8 miles southwest
of Falcon Mesa, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...HAIL DAMAGE TO VEHICLES...INCLUDING CRACKED WINDSHIELDS
AND MINOR EXTERIOR DENTS CAN EXPECTED. SOME DAMAGE TO
CROPS AND TREES IS EXPECTED. EXPECT MINOR WIND DAMAGE TO
MOBILE HOMES...SOME ROOFS...SIDING AND SOME FENCES. TREE
LIMBS WILL BLOW DOWN AND SMALL TREES WILL BE UPROOTED.
DAMAGE TO POWER LINES AND SOME POWER POLES IS EXPECTED.
* Locations impacted include...
Zapata, Bustamante, Medina, Siesta Shores, Las Palmas and Falcon
Mesa.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 2732 9937 2727 9933 2727 9905 2706 9905
2682 9926 2686 9928 2687 9932 2688 9933
2692 9932 2694 9939 2696 9939 2698 9938
2702 9942 2729 9942
TIME...MOT...LOC 0213Z 214DEG 33KT 2731 9938 2679 9938
HAIL...1.00IN
WIND...60MPH
$$
JMS1 follow-up statement
963
WWUS54 KBRO 200239
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
839 PM CST SUN FEB 19 2017
TXC505-200300-
/O.CON.KBRO.SV.W.0002.000000T0000Z-170220T0300Z/
Zapata TX-
839 PM CST SUN FEB 19 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CST
FOR NORTHERN ZAPATA COUNTY...
At 838 PM CST, severe thunderstorms were located along a line
extending from NEAR Laredo Ranchettes to Zapata, moving northeast at
40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...HAIL DAMAGE TO VEHICLES...INCLUDING CRACKED WINDSHIELDS AND
MINOR EXTERIOR DENTS CAN EXPECTED. SOME DAMAGE TO CROPS AND
TREES IS EXPECTED. EXPECT MINOR WIND DAMAGE TO MOBILE
HOMES...SOME ROOFS...SIDING AND SOME FENCES. TREE LIMBS
WILL BLOW DOWN AND SMALL TREES WILL BE UPROOTED. DAMAGE TO
POWER LINES AND SOME POWER POLES IS EXPECTED.
Locations impacted include...
Zapata, Bustamante, Medina, Las Palmas and Falcon Mesa.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 2727 9905 2706 9905 2682 9926 2686 9928
2687 9932 2688 9933 2692 9932 2694 9939
2696 9939 2698 9938 2704 9933 2727 9926
TIME...MOT...LOC 0238Z 214DEG 33KT 2750 9924 2698 9924
HAIL...1.00IN
WIND...60MPH
$$
JMSThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 6:25 PM CST | Small Craft Advisory | BRO | 12 hr | |
| Feb 19, 7:38 PM CST | Special Weather Statement | BRO | Zapata | 52 min |
| Feb 19, 7:51 PM CST | Severe Thunderstorm Warning | BRO | Zapata | 24 min |
| Feb 19, 8:25 PM CST | Flash Flood Warning | BRO | Zapata | 95 min |
| Feb 19, 9:01 PM CST | Special Weather Statement | BRO | Zapata | 44 min |
| Feb 20, 12:02 AM CST | Special Weather Statement | BRO | Zapata | 28 min |
| Feb 20, 12:24 AM CST | Special Weather Statement | BRO | Zapata | 36 min |
| Feb 20, 1:12 AM CST | Special Weather Statement | BRO | Zapata | 48 min |
| Feb 20, 1:40 AM CST | Special Weather Statement | BRO | Jim Hogg, Starr | 50 min |
| Feb 20, 1:43 AM CST | Special Weather Statement | BRO | Starr | 47 min |
| Feb 20, 1:46 AM CST | Special Weather Statement | BRO | Jim Hogg | 29 min |
| Feb 20, 2:28 AM CST | Special Weather Statement | BRO | Starr | 47 min |
| Feb 20, 2:44 AM CST | Special Weather Statement | BRO | Starr | 31 min |
| Feb 20, 3:29 AM CST | Special Weather Statement | BRO | Brooks | 46 min |
| Feb 20, 3:43 AM CST | Special Weather Statement | BRO | Hidalgo | 32 min |
| Feb 20, 4:07 AM CST | Special Weather Statement | BRO | Kenedy | 38 min |
| Feb 20, 8:24 AM CST | Special Marine Warning | BRO | 66 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning in 2017
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.