Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 9, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 21, 1999, 8:43 PM CST for Henderson County, Kaufman County, Van Zandt County, Texas. It was in force for 47 min. 7 reports 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
- Jan 21, 1999, 8:43 PM CST (02:43 UTC)
- Expired
- Jan 21, 1999, 9:30 PM CST
- In force
- 47 min
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties
Counties Henderson County, TX, Kaufman County, TX, Van Zandt County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 124 km from the middle of the area, began a volume at 02:42 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 21, 8:45 PM CST | Thunderstorm Wind | Tool, TX | High thunderstorm winds blew the roof off a vacant building. |
| Jan 21, 8:50 PM CST | Hail 1.75 | Kemp, TX | |
| Jan 21, 9:05 PM CST | Hail 1 | Mabank, TX | |
| Jan 21, 9:05 PM CST | Hail 1.5 | Ben Wheeler, TX | |
| Jan 21, 9:10 PM CST | Hail 1.75 | Canton, TX | |
| Jan 21, 9:15 PM CST | Hail 0.75 | Fruitvale, TX | |
| Jan 21, 9:20 PM CST | Hail 0.75 | Grand Saline, TX |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 21, 8:30 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 2.7 hours before the alert went out and 128 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3099 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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.
In the hours before
Special weather statement, Jan 21, 4:53 PM CST, 3 hours 50 minutes before
TXZ094-095-105>107-122-123-135-148-220100- SEVERE WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 453 PM CST THU JAN 21 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON AND TONIGHT FOR THAT PART OF NORTH TEXAS ALONG AND EAST OF A BONHAM...GREENVILLE...ATHENS LINE. THIS SLIGHT RISK AREA INCLUDES PARIS...COOPER...CANTON AND SULPHUR SPRINGS. THE MAIN THREATS WILL BE FROM LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A TORNADO OR TWO. HOWEVER...A GREATER THREAT OF TORNADOES WILL EXIST FURTHER EAST...IN A HIGH RISK AREA FROM NEAR TEXARKANA EAST AND NORTHEAST INTO ARKANSAS AND LOUISIANA. A VERY STRONG UPPER LEVEL LOW WAS MOVING INTO WEST TEXAS LATE THIS AFTERNOON AND SEVERE THUNDERSTORMS HAD ALREADY DEVELOPED ACROSS MUCH OF ARKANSAS...WITH ISOLATED THUNDERSTORMS OVER SOUTHEAST PORTIONS OF OKLAHOMA. A SURFACE LOW WILL TRACK EAST ALONG THE RED RIVER THIS EVENING AND THIS FEATURE MAY ALLOW THE THUNDERSTORMS IN SOUTHEAST OKLAHOMA TO DEVELOP SOUTHWARD INTO THE OUTLOOK AREA. EMERGENCY MANAGEMENT OFFICES AND STORM SPOTTERS MAY BE ACTIVATED EARLY THIS EVENING ACROSS THE SLIGHT RISK AREA. NORTHEAST TEXAS RESIDENTS SHOULD MONITOR THEIR NOAA WEATHER RADIO...RADIO...TV...AND CABLE TV STATIONS FOR FURTHER INFORMATION REGARDING THIS DANGEROUS SEVERE WEATHER EVENT. 80
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 7:56 PM CST | Severe Thunderstorm Warning | FWD | Hill, Limestone, Navarro | 49 min |
| Jan 21, 7:56 PM CST | Severe Thunderstorm Warning | FWD | McLennan | 49 min |
| Jan 21, 9:30 PM CST | Severe Thunderstorm Warning | FWD | Freestone, Limestone | 45 min |
| Jan 21, 9:53 PM CST | Tornado Warning | FWD | Limestone | 37 min |
| Jan 21, 10:18 PM CST | Severe Thunderstorm Warning | FWD | Leon | 42 min |
| Jan 22, 12:52 AM CST | Severe Thunderstorm Warning | FWD | Milam | 28 min |
| Jan 22, 1:03 AM CST | Severe Thunderstorm Warning | FWD | Robertson | 37 min |
| Jan 22, 1:35 AM CST | Severe Thunderstorm Warning | FWD | Leon | 35 min |
| Jan 22, 2:08 AM CST | Severe Thunderstorm Warning | FWD | Leon | 37 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.