Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 238, NWS Fort Worth, TX

April 30, 2000Wise County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 30, 2000, 7:58 AM CDT for Wise County, Texas. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 30, 2000, 7:58 AM CDT (12:58 UTC)
Expired: Apr 30, 2000, 9:00 AM CDT
In force: 62 min
Issued by: NWS Fort Worth, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wise County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 1.0 hours before the alert went out and 73 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 511 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KFWD 301300
SVRFTW
TXC497-301400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
758 AM CDT SUN APR 30 2000

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WISE COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 900 AM CDT

* AT 758 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF CHICO...OR JUST WEST OF 
  LAKE BRIDGEPORT...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE CHICO AND ALVORD

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHICO AROUND 825 AM CDT
  ALVORD AROUND 840 AM CDT

THIS STORM PRODUCED HAIL UP TO ONE INCHES IN DIAMETER AT WIZARD WELLS 
IN JACK COUNTY AT 757 AM. THE STORM WILL CONTINUE TO PRODUCE LARGE 
HAIL AND WINDS UP TO 65 MPH.

LAT...LON 3327 9792 3316 9791 3339 9752 3344 9773
          3336 9790

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 Apr 30, 3:45 AM CDT, 4 hours 13 minutes earlier.

Area forecast discussion, Apr 30, 3:45 AM CDT, 4 hours 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
345 AM CDT SUN APR 30 2000

SPEED MAX SHOWN ON WATER VAPOR SATELLITE HAVE SUSTAINED THE
CONVECTION...LOCATED FROM JACKSBORO TO EASTLAND AT 0830Z.  THIS
ACTIVITY APPEARED TO BE TRACKING EAST ALONG AN OUTFLOW BOUNDARY LEFT
BY SATURDAY MORNING'S ACTIVITY.  WITH THE HELP OF STRONG
INFLOW...THESE STORMS SHOULD MAINTAIN THEIR STRENGTH WITHIN THE
MOIST UNSTABLE AIRMASS AND COULD BECOME SEVERE.  REGARDING
AVIATION...BEST ESTIMATES PLACE TSRA OVER D/FW AIRPORTS 09Z-12Z.

NEW DEVELOPMENT SHOULD FIRE ALONG THE DRY LINE LATER THIS AFTERNOON
AND COULD PROGRESS INTO THE WRN AND POSSIBLY CNTRL ZONES TONIGHT.
FAVORABLE WIND SHEAR WITHIN THE PERSISTENT UNSTABLE AIR SUGGEST
SEVERE THREAT WILL CONTINUE PARTICULARLY OVER WRN 2/3.

SLOW-MOVING LOW PRESSURE SYSTEM SPELL A WET FORECAST THROUGH THE
EXTENDED PERIOD.  WE'LL HAVE TO MONITOR THE HEAVY RAINFALL POTENTIAL
ON MONDAY AND TUESDAY ALONG AND NORTH OF THE FRONT.

64

DFW 82/66/78/64 5443
ACT 84/67/80/65 4443

.FTW...WIND ADVISORY TODAY FOR WRN 2/3.

In the hours before

Local storm report, Apr 30, 4:37 AM CDT, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
437 AM CDT SUN APR 30 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....
B
0410 AM    1 W WEATHERFORD           TX   0.75 INCH HAIL
04/30/00   PARKER                         AMATEUR RADIO SPOTTER
                                          REPORTED DIME HAIL

Special weather statement, Apr 30, 5:31 AM CDT, 2 hours 27 minutes before

TXZ091>095-102>107-118>123-133>135-144>146-148-301101-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
531 AM CDT SUN APR 30 2000

SEVERE THUNDERSTORM WATCH NUMBER 221 HAS BEEN CANuCELED. THE STORMS
HAVE WEAKENED AND ARE NO LONGER A THREAT TO PRODUCE SEVERE
WEATHER.  HOWEVER...SEVERE WEATHER IS A GOOD POSSIBILITY TO
REDEVELOP LATER TODAY...SO STAY TUNED TO LATER STATEMENTS ON
THIS DEVELOPING SITUATION.

Special weather statement, Apr 30, 5:42 AM CDT, 2 hours 16 minutes before

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301700-

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
542 AM CDT SUN APR 30 2000

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT
FOR WESTERN SECTIONS OF NORTH CENTRAL TEXAS...GENERALLY WEST OF A
GRAHAM...RANGER...COMANCHE LINE.  THE MODERATE RISK INCLUDES THESE
COMMUNITIES...ALONG WITH BRECKENRIDGE AND EASTLAND.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT...
EAST OF THE MODERATE RISK...AND GENERALLY WEST OF A SHERMAN...DALLAS
...WACO...TEMPLE LINE.  THE SLIGHT RISK INCLUDES THE DALLAS FORT
WORTH AREA...MINERAL WELLS...WEATHERFORD...AND DENTON.

THE MAIN THREATS FROM TODAYS STORMS WILL BE FROM LARGE HAIL AND
DAMAGING WINDS.  A FEW SUPERCELL TORNADOES ARE POSSIBLE THIS
AFTERNOON AND EVENING...MAINLY IN THE MODERATE RISK AREA.  HEAVY
RAIN MAY BECOME A THREAT BY TONIGHT OVER NORTHWEST SECTIONS OF NORTH
TEXAS...AND ACROSS THE ENTIRE AREA ON MONDAY.

EARLY DAY THUNDERSTORMS HAVE LEFT AN OUTFLOW BOUNDARY FROM JUST SOUTH
OF FORT WORTH TO BETWEEN ABILENE AND SAN ANGELO.  THIS BOUNDARY
SHOULD MOVE SLIGHTLY TO THE NORTH THIS AFTERNOON...UNLESS ADDITIONAL
MORNING STORMS PUSH IT SOUTHWARD.  BY AFTERNOON A SURFACE LOW
PRESSURE CENTER WILL STRENGTHEN ALONG THE DRY LINE SOUTHEAST OF
LUBBOCK. THE GREATEST THREAT OF TORNADIC STORMS LIKELY WILL BE EAST
OF THE SURFACE LOW...AND IN THE VICINITY OF THE OUTFLOW BOUNDARY.

AGAIN...MORNING STORMS COULD CHANGE THE CONFIGURATION OF OUTFLOW
BOUNDARIES...SUCH THAT THE AREA OF THE GREATEST SEVERE WEATHER
THREAT IS CHANGED SIGNIFICANTLY.

IN ADDITION TO THE THREAT OF SEVERE STORMS...THERE IS A WIND
ADVISORY TODAY FOR THE WESTERN TWO THIRDS OF NORTH CENTRAL TEXAS.
SOUTHEAST AND SOUTH WINDS OF 20 TO 30 MPH WILL CREATE HAZARDOUS
CONDITIONS ON LAKES AND FOR HIGH-PROFILE VEHICLES ON EAST-WEST
ORIENTED ROADS.  AN UPDATED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED
AROUND NOON.

FOR HAZARDOUS WEATHER/THUNDERSTORM OUTLOOKS FOR ADJACENT AREAS...SEE
OKCSPSOKC (NORTHWESTERN TEXAS...WESTERN AND CENTRAL OKLAHOMA)...
OKCSPSTUL (EASTERN OKLAHOMA AND NORTHWEST ARKANSAS)...NEWSPSSHV
(NORTHEAST TEXAS...NORTHWESTERN LOUISIANA...EXTREME
SOUTHEASTERN OKLAHOMA AND SOUTHWESTERN ARKANSAS)...SATSPSHOU
(SOUTHEAST TEXAS)...SATSPSSAT (SOUTH CENTRAL TEXAS)...AND LBBSPSSJT
(WEST CENTRAL TEXAS).

Special weather statement, Apr 30, 6:28 AM CDT, 1 hour 30 minutes before

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301700-

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
542 AM CDT SUN APR 30 2000

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT
FOR WESTERN SECTIONS OF NORTH CENTRAL TEXAS...GENERALLY WEST OF A
GRAHAM...RANGER...COMANCHE LINE.  THE MODERATE RISK INCLUDES THESE
COMMUNITIES...ALONG WITH BRECKENRIDGE AND EASTLAND.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT...
EAST OF THE MODERATE RISK...AND GENERALLY WEST OF A SHERMAN...DALLAS
...WACO...TEMPLE LINE.  THE SLIGHT RISK INCLUDES THE DALLAS FORT
WORTH AREA...MINERAL WELLS...WEATHERFORD...AND DENTON.

THE MAIN THREATS FROM TODAY'S STORMS WILL BE FROM LARGE HAIL AND
DAMAGING WINDS.  A FEW SUPERCELL TORNADOES ARE POSSIBLE THIS
AFTERNOON AND EVENING...MAINLY IN THE MODERATE RISK AREA.  HEAVY
RAIN MAY BECOME A THREAT BY TONIGHT OVER NORTHWEST SECTIONS OF NORTH
TEXAS...AND ACROSS THE ENTIRE AREA ON MONDAY.

EARLY DAY THUNDERSTORMS HAVE LEFT AN OUTFLOW BOUNDARY FROM JUST SOUTH
OF FORT WORTH TO BETWEEN ABILENE AND SAN ANGELO.  THIS BOUNDARY
SHOULD MOVE SLIGHTLY TO THE NORTH THIS AFTERNOON...UNLESS ADDITIONAL
MORNING STORMS PUSH IT SOUTHWARD.  BY AFTERNOON A SURFACE LOW
PRESSURE CENTER WILL STRENGTHEN ALONG THE DRY LINE SOUTHEAST OF
LUBBOCK. THE GREATEST THREAT OF TORNADIC STORMS LIKELY WILL BE EAST
OF THE SURFACE LOW...AND IN THE VICINITY OF THE OUTFLOW BOUNDARY.

AGAIN...MORNING STORMS COULD CHANGE THE CONFIGURATION OF OUTFLOW
BOUNDARIES...SUCH THAT THE AREA OF THE GREATEST SEVERE WEATHER
THREAT IS CHANGED SIGNIFICANTLY.

IN ADDITION TO THE THREAT OF SEVERE STORMS...THERE IS A WIND
ADVISORY TODAY FOR THE WESTERN TWO THIRDS OF NORTH CENTRAL TEXAS.
SOUTHEAST AND SOUTH WINDS OF 20 TO 30 MPH WILL CREATE HAZARDOUS
CONDITIONS ON LAKES AND FOR HIGH-PROFILE VEHICLES ON EAST-WEST
ORIENTED ROADS.  AN UPDATED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED
AROUND NOON.

FOR HAZARDOUS WEATHER/THUNDERSTORM OUTLOOKS FOR ADJACENT AREAS...SEE
OKCSPSOKC (NORTHWESTERN TEXAS...WESTERN AND CENTRAL OKLAHOMA)...
OKCSPSTUL (EASTERN OKLAHOMA AND NORTHWEST ARK>ANSAS)...NEWSPSSHV
(NORTHEAST TEXAS...NORTHWESTERN LOUISIANA...EXTREME
SOUTHEASTERN OKLAHOMA AND SOUTHWESTERN ARKANSAS)...SATSPSHOU
(SOUTHEAST TEXAS)...SATSPSSAT (SOUTH CENTRAL TEXAS)...AND LBBSPSSJT
(WEST CENTRAL TEXAS).

Local storm report, Apr 30, 6:38 AM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
638 AM CDT SUN APR 30 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....

0633 AM    13 W GRAFORD              TX   2.50 INCH HAIL
04/30/00   PALO_PINTO                     GREATER THAN 2.00 INCH
                                          DIAMETER HAIL OVER
                                          POSSUM KINGDOM LAKE.
                                          REPORTED BY PALO PINTO
                                          SHERIFF'S DEPARTMENT.

Local storm report, Apr 30, 7:44 AM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
744 AM CDT SUN APR 30 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....

0742 AM    10 SE JACKSBORO           TX   1.00 INCH HAIL
04/30/00   JACK                           AMATEUR RADIO SPOTTER
                                          REPORTED QUARTER SIZED
                                          HAIL SOUTHEAST OF
                                          JACKSBORO ON HIGHWAY
                                          199.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 1:36 AM CDT	Severe Thunderstorm Warning	FWD	Stephens, Young	54 min
Apr 30, 3:46 AM CDT	Severe Thunderstorm Warning	FWD	Parker	44 min
Apr 30, 4:25 AM CDT	Severe Thunderstorm Warning	FWD	Tarrant	65 min
Apr 30, 6:13 AM CDT	Severe Thunderstorm Warning	FWD	Young	47 min
Apr 30, 6:20 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	55 min
Apr 30, 7:05 AM CDT	Severe Thunderstorm Warning	FWD	Jack	40 min
Apr 30, 7:43 AM CDT	Severe Thunderstorm Warning	FWD	Jack	47 min
Apr 30, 8:54 AM CDT	Severe Thunderstorm Warning	FWD	Montague	66 min
Apr 30, 5:16 PM CDT	Tornado Warning	FWD	Young	44 min
Apr 30, 5:52 PM CDT	Tornado Warning	FWD	Young	38 min
Apr 30, 6:27 PM CDT	Tornado Warning	FWD	Young	48 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000 Every severe thunderstorm warning in 2000

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.