Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 21, NWS Fort Worth, TX

January 28, 1999Hamilton County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 28, 1999, 9:25 PM CST for Hamilton County, Texas. It was in force for 35 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
Jan 28, 1999, 9:25 PM CST (03:25 UTC)
Expired
Jan 28, 1999, 10:00 PM CST
In force
35 min
Issued by
NWS Fort Worth, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Hamilton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 118 km from the middle of the area, began a volume at 03:29 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

Fort Worth, TX (KFWD), launched 00:00Z, 3.4 hours before the alert went out and 143 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, Fort Worth, TX at 00:00Z on 1999-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 379 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, Fort Worth, TX at 00:00Z on 1999-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
379 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
475 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWD 290328
SVRFTW
TXC193-290400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
925 PM CST THU JAN 28 1999

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HAMILTON COUNTY IN TEXAS

* UNTIL 1000 PM CST

* AT 925 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED    
  A SEVERE THUNDERSTORM NEAR HAMILTON...MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IN THE WARNING INCLUDE HAMILTON

*THE MAIN THREAT WILL BE HAIL UP TO THE SIZE OF QUARTERS AND WIND    
 GUSTS AROUND 60 MPH.

LAT...LON 3169 9825 3157 9811 3173 9780 3200 9800

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.

In the hours before

Local storm report, Jan 28, 5:44 PM CST, 3 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
544 PM CST THU JAN 28 1999

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

0445 PM                              TX   FLOODING
01/28/99   FREESTONE                      LAW ENFORCEMENT REPORTS
                                          MANY SECONDARY ROADS
                                          FLOODED ACROSS THE COUNTY
                                          BETWEEN 430 AND 5 PM.
Local storm report, Jan 28, 7:07 PM CST, 2 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
707 PM CST THU JAN 28 1999

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

0640 PM    1 W PALESTINE             TX   FLOODING
01/28/99   ANDERSON                       SHERIFFS OFFICE REPORTS A
                                          CAR WASHED OFF THE ROAD ON
                                          HWY 79
Local storm report, Jan 28, 9:13 PM CST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
913 PM CST THU JAN 28 1999

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

0805 PM    8 N STEPHENVILLE          TX   1 INCH HAIL
01/28/99   ERATH                          SHERIFFS OFFICE REPORTED
                                          QUARTER SIZE HAIL

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 28, 6:55 PM CSTFlash Flood WarningFWDAnderson, Freestone, Henderson3 hr
Jan 28, 7:19 PM CSTFlash Flood WarningFWDLeon3 hr
Jan 28, 8:05 PM CSTSevere Thunderstorm WarningFWDComanche40 min
Jan 28, 8:35 PM CSTSevere Thunderstorm WarningFWDErath40 min
Jan 28, 9:32 PM CSTSevere Thunderstorm WarningFWDErath43 min
Jan 28, 9:32 PM CSTSevere Thunderstorm WarningFWDParker43 min
Jan 28, 9:37 PM CSTSevere Thunderstorm WarningFWDHill, Johnson53 min
Jan 28, 9:56 PM CSTFlash Flood WarningFWDHamilton3 hr
Jan 28, 10:15 PM CSTFlash Flood WarningFWDErath, Hood, Somervell3 hr
Jan 28, 10:15 PM CSTFlash Flood WarningFWDParker3 hr
Jan 29, 4:25 AM CSTFlash Flood WarningFWDFreestone3 hr
Jan 29, 4:50 AM CSTFlash Flood WarningFWDDelta, Hunt3 hr
Jan 29, 6:50 AM CSTFlash Flood WarningFWDFalls, Freestone, Limestone, Navarro3 hr
Jan 29, 7:37 AM CSTFlash Flood WarningFWDDenton, Johnson, Tarrant3 hr
Jan 29, 12:25 PM CSTSevere Thunderstorm WarningFWDHenderson, Navarro35 min
Jan 29, 1:44 PM CSTSevere Thunderstorm WarningFWDMcLennan46 min
Jan 29, 2:26 PM CSTSevere Thunderstorm WarningFWDMcLennan49 min
Jan 29, 2:32 PM CSTSevere Thunderstorm WarningFWDTarrant28 min
Jan 29, 2:49 PM CSTSevere Thunderstorm WarningFWDWise41 min
Jan 29, 2:53 PM CSTSevere Thunderstorm WarningFWDHill, Navarro67 min
Jan 29, 2:58 PM CSTSevere Thunderstorm WarningFWDDenton47 min
Jan 29, 3:39 PM CSTSevere Thunderstorm WarningFWDMcLennan36 min
Jan 29, 3:52 PM CSTSevere Thunderstorm WarningFWDKaufman68 min
Jan 29, 4:13 PM CSTSevere Thunderstorm WarningFWDDallas32 min
Jan 29, 4:24 PM CSTSevere Thunderstorm WarningFWDCollin36 min
Jan 29, 4:43 PM CSTFlash Flood WarningFWDNavarro3 hr
Jan 29, 4:53 PM CSTSevere Thunderstorm WarningFWDGrayson52 min
Jan 29, 5:03 PM CSTSevere Thunderstorm WarningFWDHunt57 min
Jan 29, 5:10 PM CSTFlash Flood WarningFWDFreestone, Leon, Limestone, Robertson3 hr
Jan 29, 5:33 PM CSTSevere Thunderstorm WarningFWDLimestone42 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.