Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 200, NWS Fort Worth, TX

August 15, 2001Wise County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 15, 2001, 7:59 PM CDT for Wise County, Texas. It was in force for 46 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
Aug 15, 2001, 7:59 PM CDT (00:59 UTC)
Expired
Aug 15, 2001, 8:45 PM CDT
In force
46 min
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 79 km from the middle of the area, began a volume at 01:02 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

TimeReportWhereRemark
Aug 15, 8:00 PM CDTThunderstorm WindChico, TXA barn and some power lines were blown down by high winds.

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

Norman, OK (KOUN), launched 00:00Z, 1.0 hours before the alert went out and 224 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, Norman, OK at 00:00Z on 2001-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2066 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, Norman, OK at 00:00Z on 2001-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.193958Sfc1 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
2066 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
1836 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 5:30 PM CDT, 2 hours 29 minutes earlier.

Area forecast discussion, Aug 15, 5:30 PM CDT, 2 hours 29 minutes before
AREA FORECAST DISCUSSION...UPDATED FOR AVIATION
NATIONAL WEATHER SERVICE FORT WORTH TX
530 PM CDT WED AUG 15 2001

AVIATION DISCUSSION...
SHOWERS AND THUNDERSTORMS ALREADY DEVELOPING AS CLOSE AS 70 MILES
NORTHWEST OF DFW.  WILL PROBABLY MOVE TSRA UP TO 04Z FOR DFW AREA.
OTHER THAN MOVING UP TSRA CHANCES NO OTHER MAJOR CHANGES.  59

APPROACHING UPPER TROUGH DIGGING FAIRLY WELL AND DRIVING PACIFIC
FRONT INTO THE NORTHWEST SECTIONS AROUND MIDNIGHT WITH A GOOD CHANCE
OF THUNDERSTORMS.  THE FRONT WILL PUNCH INTO THE CENTRAL AREAS BY
MORNING...THEN INTO THE SOUTHERN AREAS WHERE IT WILL SLOW...AND
LINGER INTO SATURDAY. SEVERAL GOOD SHORT WAVES PASSING WITH THIS
TROUGH.  FIRST ONE OVERNIGHT AND THURSDAY...AND THE SECOND ONE
MOVING OUT OF SOUTHWEST TEXAS FRIDAY.

AREA PW/S 1.5 -2 INCHES WITH CAPES OF 1000-1500 J/KG WITH FIRST
SYSTEM.  THUS EXPECTING SIGNIFICANT RAINFALL ( ONE TO TWO INCHES)
NORTH OF I-20 THURSDAY.  THE SOUTHERN AREAS SHOULD SEE SIGNIFICANT
RAINFALL FRIDAY INTO FRIDAY NIGHT AS ECHOES TRAIN ALONG STALLED E-W
FRONT.

COOLER TEMPERATURES MAINLY DUE TO PRECIPITATION AND CLOUD COVER
OVER THE NEXT TWO DAYS.

IN THE EXTENDED...FRONTAL BOUNDARY AND UPPER LEVEL TROUGH WILL
LIKELY KEEP SOME THUNDERSTORMS AND RAIN AROUND ON SATURDAY...BUT
MODELS BEGIN TO SHIFT THIS EAST BY SUNDAY MORNING. H5 RIDGE WILL
MAKE A SLOW RETURN TO N TEXAS SO TEMPERATURES WILL ALSO FOLLOW BACK
UPWARD.

FCSTID = 75/80

DFW   75  92  71  91 /  60  50  40  40
ACT   75  94  72  91 /  40  40  40  50

.FWD...
TX...NONE.

In the hours before

Special weather statement, Aug 15, 3:38 PM CDT, 4 hours 21 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-170900-

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
338 PM CDT WED AUG 15 2001

SCATTERED TO NUMEROUS THUNDERSTORMS WILL FORM WEST AND NORTHWEST OF
NORTH TEXAS AS A FRONT MOVES THROUGH THE TEXAS PANHANDLE AND
OKLAHOMA THIS EVENING.  THE STORMS WILL MOVE INTO THE NORTHWEST
SECTIONS OF NORTH TEXAS EARLY THIS EVENING...AND ACROSS THE
REMAINDER OF NORTH TEXAS TONIGHT.  DANGEROUS LIGHTNING WILL
ACCOMPANY THE STORMS.  THE STRONGER THUNDERSTORMS WILL HAVE A
POTENTIAL TO PRODUCE SMALL HAIL AND STRONG DAMAGING WIND OVERNIGHT.

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.