Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 21, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Apr 17, 2017, 7:47 PM CDT for Brooks County, Hidalgo County, Texas. It was in force for 37 min. 1 report 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
- Apr 17, 2017, 7:47 PM CDT (00:47 UTC)
- Expired
- Apr 17, 2017, 8:24 PM CDT
- In force
- 37 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brooks County, TX, Hidalgo County, TX
The radar
The Corpus Christi radar (KCRP), 119 km from the middle of the area, began a volume at 00:47 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 |
|---|---|---|---|
| Apr 17, 8:00 PM CDT | HAIL 1 | Encino, TX | NWS SKYWARN SPOTTER REPORTED QUARTER SIZE HAIL IN ENCINO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 0.8 hours before the alert went out and 123 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
- 1473 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
440
WUUS54 KBRO 180047
SVRBRO
TXC047-215-180145-
/O.NEW.KBRO.SV.W.0021.170418T0047Z-170418T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
747 PM CDT MON APR 17 2017
The National Weather Service in Brownsville has issued a
* Severe Thunderstorm Warning for...
North central Hidalgo County in Deep South Texas...
Southeastern Brooks County in Deep South Texas...
* Until 845 PM CDT
* At 747 PM CDT, a severe thunderstorm was located OVER El Coyote
Ranch Airport, or NEAR Rachal, moving south at 5 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...
Rachal, Encino and El Coyote Ranch Airport.
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 this storm. 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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2699 9806 2687 9799 2671 9798 2664 9815
2685 9829
TIME...MOT...LOC 0047Z 341DEG 6KT 2685 9817
HAIL...1.00IN
WIND...60MPH
$$
BILLINGS1 follow-up statement
061
WWUS54 KBRO 180124
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
824 PM CDT MON APR 17 2017
TXC047-215-180134-
/O.CAN.KBRO.SV.W.0021.000000T0000Z-170418T0145Z/
Hidalgo TX-Brooks TX-
824 PM CDT MON APR 17 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL HIDALGO AND
SOUTHEASTERN BROOKS COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.
LAT...LON 2699 9806 2687 9799 2671 9798 2664 9815
2685 9829
TIME...MOT...LOC 0121Z 341DEG 6KT 2679 9815
$$
BILLINGSThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 7:12 PM CDT | Special Weather Statement | BRO | Starr | 48 min |
| Apr 17, 7:27 PM CDT | Special Weather Statement | BRO | Brooks, Jim Hogg | 48 min |
| Apr 17, 7:29 PM CDT | Areal Flood Advisory | BRO | Starr, Zapata | 91 min |
| Apr 17, 8:12 PM CDT | Severe Thunderstorm Warning | BRO | Zapata | 49 min |
| Apr 17, 8:15 PM CDT | Special Weather Statement | BRO | Zapata | 60 min |
| Apr 17, 8:23 PM CDT | Severe Thunderstorm Warning | BRO | Zapata | 39 min |
| Apr 17, 8:28 PM CDT | Special Weather Statement | BRO | Starr | 62 min |
| Apr 17, 9:10 PM CDT | Special Weather Statement | BRO | Hidalgo, Starr | 50 min |
| Apr 17, 9:19 PM CDT | Special Weather Statement | BRO | Zapata | 56 min |
| Apr 17, 9:21 PM CDT | Areal Flood Advisory | BRO | Hidalgo, Starr | 84 min |
| Apr 17, 9:29 PM CDT | Areal Flood Advisory | BRO | Starr | 91 min |
| Apr 17, 9:35 PM CDT | Severe Thunderstorm Warning | BRO | Starr | 55 min |
| Apr 17, 9:49 PM CDT | Special Weather Statement | BRO | Hidalgo, Starr | 56 min |
| Apr 17, 9:57 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 93 min |
| Apr 18, 4:31 AM CDT | Special Marine Warning | BRO | 89 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.