Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 94, NWS Midland/Odessa, TX

May 16, 1999Terrell County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at May 16, 1999, 4:53 PM CDT for Terrell County, Texas. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 16, 1999, 4:53 PM CDT (21:53 UTC)
Expired
May 16, 1999, 6:00 PM CDT
In force
67 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Terrell County, TX

The radar

The Midland/Odessa radar (KMAF), 191 km from the middle of the area, began a volume at 21:54 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

Midland Regional, TX (KMAF), launched 12:00Z, 9.9 hours before the alert went out and 192 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, Midland Regional, TX at 12:00Z on 1999-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2474 joules per kilogram.LCLLFCEL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 1999-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
2474 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What 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 Midland/Odessa, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 16, 2:30 PM CDT, 2 hours 23 minutes earlier.

Area forecast discussion, May 16, 2:30 PM CDT, 2 hours 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
230 PM CDT SUN MAY 16 1999

CURRENT VIS LOOPS SHOWS ONLY FAIR WX CU/MID-LVL CLOUDINESS OVR ERN
CWA.  18Z SFC ANALYSIS SHOWS DRYLINE FM ABOUT A KLBB-KMAF-KP07 LINE
AND PROGRESSING EWD.  DRYLINE NOT REAL DISCONTINUOUS AND CONVERGENCE
JUST BARELY SHOWING UP ON KMAF 88D...MAINLY S.  ALL MODELS HAVE
REASONABLE GRIP ON DRYLINE BUT ETA PLACES IT THE BEST.  HOW FAR IT
GETS BEFORE SWRN L/WV OVERTAKES IT WILL DETERMINE WHERE ALL THE
ACTION BEGINS.  ETA FCSTS DRYLINE TO REMAIN NEARLY STATIONARY THRU
MON 12Z...AND W/APPROACHING L/WV...BELIEVE POPS ARE MENTIONABLE IN
ERN CWA IN 1ST 2 PDS.  WON/T HIT IT TOO HARD THOUGH...AS PAST 2 DAYS
HAVE BEEN DISAPPOINTING.  GOES DERIVED SOUNDINGS SHOW MOST FAVORABLE
ENVIRONMENT TO BE IN SW CWA AFTER CAP ERODES.  LOOKING AT
PROFILERS...AND CAPES...ENVIRONMENT E OF DRYLINE COULD SUPPORT
SEVERE DEVELOPMENT...SO WILL MENTION IT IN ZONES AS WELL.

GUIDANCE TEMPS LOOK TO BE REASONABLE...GIVEN H85 FCST TEMPS AND COLD
FNT TO SAG SWD AROUND TUE 18Z AS TROF PASSES TO N...SO WILL NOT STRY
TOO FAR.  CCF AND WZIZ

MAF 60/88/56/85 1100
CNM 59/87/55/86 0000
MRF 48/83/45/84 0000
P07 65/94/63/86 2200

44

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 7:25 PM CDTTornado WarningMAFTerrell65 min
May 16, 5:46 PM CDTTornado WarningMAFTerrell59 min

Nearby

Severe Thunderstorm Warnings in Texas, 1999Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.