Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 101, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 30, 1998, 1:44 PM CST for Jack County, Texas. It was in force for 46 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
- Mar 30, 1998, 1:44 PM CST (19:44 UTC)
- Expired
- Mar 30, 1998, 2:30 PM CST
- In force
- 46 min
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Jack County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 126 km from the middle of the area, began a volume at 19:44 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 12:00Z, 7.7 hours before the alert went out and 107 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.
- Mixed-layer CAPE
- 375 J/kg
- Mixed-layer CIN
- -354 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 271 m²/s²
- 0-3 km storm-relative helicity
- 396 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
338
WUUS1 KFTW 301950 RRA
SVRFTW
TXC237-302030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
144 PM CST MON MAR 30 1998
THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM CST FOR PEOPLE IN THE
FOLLOWING COUNTY
IN TEXAS
JACK
INCLUDING THE FOLLOWING LOCATIONS
POSTOAK AND ANTELOPE
AT 144 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF ANTELOPE...MOVING NORTHEAST
AT 35 MILES PER HOUR.
DOPPLER RADAR DETECTED HAIL UP TO NICKEL SIZE WITH THIS STORM.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.
A TORNADO WATCH IS IN EFFECT FOR THE AREA. SEVERE THUNDERSTORMS CAN
PRODUCE TORNADOES WITH NO ADVANCE WARNING. PREPARE TO MOVE TO SAFETY
IN A STURDY STRUCTURE IF A TORNADO IS SPOTTED.
LAT...LON 3344 9804 3333 9841 3346 9841 3347 9804What 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
Special weather statement, Mar 30, 10:50 AM CST, 2 hours 54 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301846- SEVERE WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 1050 AM CST MON MAR 30 1998 THERE CONTINUES A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT FOR PARTS OF NORTH CENTRAL AND NORTHEAST TEXAS. THE AREA AFFECTED IN NORTH TEXAS IS GENERALLY BETWEEN A BOWIE-BROWNWOOD LINE AND I-35 THROUGH MID AFTERNOON...AND AN I-35 TO A PARIS-PALESTINE LINE FROM MID AFTERNOON THROUGH THIS EVENING. THUNDERSTORMS ARE EXPECTED TO DEVELOP AS AN UPPER LEVEL SYSTEM OVER NEW MEXICO PUSHES A SURFACE BOUNDARY OF DRY AIR...CALLED THE DRY LINE... AHEAD OF IT... AND ACROSS THE REGION TODAY. THE DRY LINE HAS NOT MOVED AS QUICKLY AS ANTICIPATED EARLIER...MEANING THAT THE SEVERE THUNDERSTORM THREAT WILL OCCUR LATER INTO THE DAY THAN ORIGINALLY ANTICIPATED. A LAYER OF WARM AIR IN THE LOW LEVELS OF THE ATMOSPHERE...CALLED A CAPPING INVERSION... HAS KEPT MOISTURE TRAPPED NEAR THE SURFACE AND INHIBITING THUNDERSTORM DEVELOPMENT. THUNDERSTORMS WILL OCCUR AS THE WARM LAYER IS ERODED... WHICH IS EXPECTED TO OCCUR WITH THE APPROACH OF THE DRY LINE. A COMPLICATING FACTOR IS THE PARENT UPPER LEVEL SYSTEM OVER NEW MEXICO. ENERGY ASSOCIATED WITH THIS SYSTEM WILL MOVE EAST IN PIECES.,, MEANING SOME ENERGY MAY LAG BACK OVER THE SOUTHERN SECTIONS OF NORTH TEXAS INTO TONIGHT. THUNDERSTORMS COULD THUS LINGER INTO THE EARLY MORNING HOURS FOR THE AREA SOUTHEAST OF A TYLER-WACO LINE. THE STRENGTH OF THE LOW LEVEL WIND AND COLD AIR ALOFT MEANS THAT THUNDERSTORMS COULD DEVELOP VERY RAPIDLY THE REMAINDER OF TODAY. THE STRONGEST ACTIVITY IS MOST LIKELY TO OCCUR DURING THE AFTERNOON HOURS... WHEN MAXIMUM HEATING AIDS DESTABILIZATION OF THE ATMOSPHERE. SPOTTERS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD KEEP IN TOUCH WITH LATEST WEATHER DEVELOPMENTS. ACTIVATION MAY BE NEEDED WEST OF I-35 BEFORE 300 PM...AND EAST OF I35 AFTER 300 PM. LARGE HAIL...HIGH WIND...AND HEAVY RAIN WILL BE THE MAIN THREAT... BUT TORNADOES ARE ALSO POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS OR WARNINGS ON THE SEVERE WEATHER SITUATION.
Special weather statement, Mar 30, 10:50 AM CST, 2 hours 54 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301846- SEVERE WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 1050 AM CST MON MAR 30 1998 THERE CONTINUES A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT FOR PARTS OF NORTH CENTRAL AND NORTHEAST TEXAS. THE AREA AFFECTED IN NORTH TEXAS IS GENERALLY BETWEEN A BOWIE-BROWNWOOD LINE AND I-35 THROUGH MID AFTERNOON...AND AN I-35 TO A PARIS-PALESTINE LINE FROM MID AFTERNOON THROUGH THIS EVENING. THUNDERSTORMS ARE EXPECTED TO DEVELOP AS AN UPPER LEVEL SYSTEM OVER NEW MEXICO PUSHES A SURFACE BOUNDARY OF DRY AIR...CALLED THE DRY LINE... AHEAD OF IT... AND ACROSS THE REGION TODAY. THE DRY LINE HAS NOT MOVED AS QUICKLY AS ANTICIPATED EARLIER...MEANING THAT THE SEVERE THUNDERSTORM THREAT WILL OCCUR LATER INTO THE DAY THAN ORIGINALLY ANTICIPATED. A LAYER OF WARM AIR IN THE LOW LEVELS OF THE ATMOSPHERE...CALLED A CAPPING INVERSION... HAS KEPT MOISTURE TRAPPED NEAR THE SURFACE AND INHIBITING THUNDERSTORM DEVELOPMENT. THUNDERSTORMS WILL OCCUR AS THE WARM LAYER IS ERODED... WHICH IS EXPECTED TO OCCUR WITH THE APPROACH OF THE DRY LINE. A COMPLICATING FACTOR IS THE PARENT UPPER LEVEL SYSTEM OVER NEW MEXICO. ENERGY ASSOCIATED WITH THIS SYSTEM WILL MOVE EAST IN PIECES.,, MEANING SOME ENERGY MAY LAG BACK OVER THE SOUTHERN SECTIONS OF NORTH TEXAS INTO TONIGHT. THUNDERSTORMS COULD THUS LINGER INTO THE EARLY MORNING HOURS FOR THE AREA SOUTHEAST OF A TYLER-WACO LINE. THE STRENGTH OF THE LOW LEVEL WIND AND COLD AIR ALOFT MEANS THAT THUNDERSTORMS COULD DEVELOP VERY RAPIDLY THE REMAINDER OF TODAY. THE STRONGEST ACTIVITY IS MOST LIKELY TO OCCUR DURING THE AFTERNOON HOURS... WHEN MAXIMUM HEATING AIDS DESTABILIZATION OF THE ATMOSPHERE. SPOTTERS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD KEEP IN TOUCH WITH LATEST WEATHER DEVELOPMENTS. ACTIVATION MAY BE NEEDED WEST OF I-35 BEFORE 300 PM...AND EAST OF I35 AFTER 300 PM. LARGE HAIL...HIGH WIND...AND HEAVY RAIN WILL BE THE MAIN THREAT... BUT TORNADOES ARE ALSO POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS OR WARNINGS ON THE SEVERE WEATHER SITUATION.
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 12:55 PM CST | Severe Thunderstorm Warning | FWD | Young | 65 min |
| Mar 30, 2:43 PM CST | Severe Thunderstorm Warning | FWD | Montague | 47 min |
| Mar 30, 3:43 PM CST | Severe Thunderstorm Warning | FWD | Montague | 47 min |
| Mar 30, 3:58 PM CST | Severe Thunderstorm Warning | FWD | Cooke | 47 min |
| Mar 30, 5:15 PM CST | Severe Thunderstorm Warning | FWD | Denton, Tarrant | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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.