Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Brownsville, TX

June 27, 2002Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Jun 27, 2002, 1:49 PM CDT for Jim Hogg County, Zapata County, Texas. It was in force for 41 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
Jun 27, 2002, 1:49 PM CDT (18:49 UTC)
Expired
Jun 27, 2002, 2:30 PM CDT
In force
41 min
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

Counties Jim Hogg County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 159 km from the middle of the area, began a volume at 18:51 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 12:00Z, 6.8 hours before the alert went out and 170 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.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2002-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 685 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939Sfc1 km3 km6 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
685 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
281 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KBRO 271849
SVRBRO
TXC247-505-271930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
147 PM CDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ZAPATA COUNTY IN DEEP SOUTH TEXAS
  SOUTHWESTERN JIM HOGG COUNTY IN DEEP SOUTH TEXAS

* UNTIL 230 PM CDT

* AT 145 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 22 
MILES SOUTHWEST OF HEBBRONVILLE...MOVING SOUTH AT 20 MPH. THIS 
SEVERE THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE HAIL...AND WINDS 
IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF... 
EASTERN ZAPATA...WESTERN JIM HOGG AND SOUTHWESTERN JIM HOGG   
COUNTIES.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WINDS...LARGE HAIL...FREQUENT CLOUD TO GROUND
LIGHTNING...AND VERY HEAVY RAIN ARE ALL POSSIBLE IN SEVERE
THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE.

LAT...LON 2719 9878 2718 9902 2679 9909 2680 9871

MILLER

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 8:01 PM CDTSevere Thunderstorm WarningBROBrooks, Jim Hogg44 min
Jun 27, 1:10 AM CDTSpecial Marine WarningBRO2 hr
Jun 27, 3:30 AM CDTSpecial Marine WarningBRO2 hr
Jun 27, 8:40 AM CDTSpecial Marine WarningBRO110 min
Jun 27, 8:40 AM CDTSpecial Marine WarningBRO110 min
Jun 27, 10:16 AM CDTSpecial Marine WarningBRO74 min
Jun 27, 10:16 AM CDTSpecial Marine WarningBRO74 min
Jun 27, 2:56 PM CDTSevere Thunderstorm WarningBROJim Hogg64 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.