Alert archive / Texas / Tornado Warnings in 1999

Tornado Warning 14, NWS Austin/San Antonio, TX

March 27, 1999Kinney County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Mar 27, 1999, 4:55 PM CST for Kinney County, Val Verde County, Texas. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 27, 1999, 4:55 PM CST (22:55 UTC)
Expired
Mar 27, 1999, 5:55 PM CST
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Kinney County, TX, Val Verde County, TX

What was reported inside it

TimeReportWhereRemark
Mar 27, 5:10 PM CSTTornado F0Juno, TXA small and short-lived tornado was observed in open country just north of Juno.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 10.9 hours before the alert went out and 28 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, Del Rio, TX at 12:00Z on 1999-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 1999-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.19395878Sfc1 km3 km6 km9 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 272255 RRA
TORSAT
TXC271-465-272355-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
455 PM CST SAT MAR 27 1999

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN VAL VERDE COUNTY IN TEXAS
  KINNEY COUNTY IN TEXAS

* UNTIL 555 PM CST

* AT 450 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO JUST NORTHWEST OF DEL RIO WITH ANOTHER POSSIBLE TORNADO
  BETWEEN JIMENEZ AND THE VAL VERDE...KINNEY COUNTY LINE...MOVING
  NORTHEAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  DEL RIO AT 505 PM.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

MAB







The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 5:20 PM CSTSevere Thunderstorm WarningEWXMaverick60 min
Mar 27, 5:29 PM CSTSevere Thunderstorm WarningEWXEdwards61 min
Mar 27, 5:41 PM CSTFlash Flood WarningEWXVal Verde3 hr
Mar 27, 5:55 PM CSTSevere Thunderstorm WarningEWXUvalde, Zavala90 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.