Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 21, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 5, 1998, 7:49 PM CST for McLennan County, Texas. It was in force for 26 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
- Jan 5, 1998, 7:49 PM CST (01:49 UTC)
- Expired
- Jan 5, 1998, 8:15 PM CST
- In force
- 26 min
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties
County McLennan County, TX
The radar
The Ft Hood radar (KGRK), 94 km from the middle of the area, began a volume at 01:50 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 5, 8:10 PM CST | Hail 0.75 | Mart, 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 1.8 hours before the alert went out and 142 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
- 45 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
998 WUUS1 KFTW 060151 RRA SVRFTW TXC309-060215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FORT WORTH TX 749 PM CST MON JAN 5 1998 THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL TEXAS ...MCLENNAN COUNTY AT 749 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR MART. THIS STORM IS CAPABLE OF PRODUCING LARGE HAIL AND WINDS IN EXCESS OF 60 MPH AS IT MOVES NORTH-NORTHEAST AT 30 MPH. THIS IS A DANGEROUS STORM. AS IT APPROACHES YOU SHOULD PREPARE FOR DAMAGING WIND...LARGE HAIL...AND FREQUENT LIGHTNING. IF YOU ARE OUTSIDE MOVE TO STURDY SHELTER NOW.
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 6:05 PM CST | Severe Thunderstorm Warning | FWD | Anderson, Freestone | 55 min |
| Jan 5, 6:21 PM CST | Tornado Warning | FWD | Mills | 54 min |
| Jan 5, 6:40 PM CST | Flash Flood Warning | FWD | Mills | 3 hr |
| Jan 5, 6:40 PM CST | Flash Flood Warning | FWD | Falls | 3 hr |
| Jan 5, 6:50 PM CST | Severe Thunderstorm Warning | FWD | McLennan | 25 min |
| Jan 5, 6:59 PM CST | Severe Thunderstorm Warning | FWD | Hamilton | 61 min |
| Jan 5, 7:06 PM CST | Severe Thunderstorm Warning | FWD | Bosque, Hill | 54 min |
| Jan 5, 7:13 PM CST | Tornado Warning | FWD | Hamilton | 17 min |
| Jan 5, 7:19 PM CST | Severe Thunderstorm Warning | FWD | Falls, Robertson | 41 min |
| Jan 5, 7:35 PM CST | Severe Thunderstorm Warning | FWD | Freestone, Limestone | 55 min |
| Jan 5, 7:45 PM CST | Severe Thunderstorm Warning | FWD | Hill | 45 min |
| Jan 5, 7:46 PM CST | Severe Thunderstorm Warning | FWD | Mills | 59 min |
| Jan 5, 8:33 PM CST | Severe Thunderstorm Warning | FWD | Johnson | 42 min |
| Jan 5, 8:39 PM CST | Severe Thunderstorm Warning | FWD | Mills | 36 min |
| Jan 5, 8:40 PM CST | Severe Thunderstorm Warning | FWD | Hamilton | 65 min |
| Jan 5, 8:50 PM CST | Severe Thunderstorm Warning | FWD | Bosque | 55 min |
| Jan 5, 8:53 PM CST | Severe Thunderstorm Warning | FWD | Anderson | 52 min |
| Jan 5, 8:58 PM CST | Flash Flood Warning | FWD | Freestone, Limestone | 3 hr |
| Jan 5, 9:13 PM CST | Severe Thunderstorm Warning | FWD | Tarrant | 62 min |
| Jan 5, 9:21 PM CST | Severe Thunderstorm Warning | FWD | Henderson | 69 min |
| Jan 5, 9:36 PM CST | Flash Flood Warning | FWD | Ellis, Kaufman | 2 hr |
| Jan 5, 9:42 PM CST | Flash Flood Warning | FWD | Falls | 2 hr |
| Jan 5, 10:05 PM CST | Flash Flood Warning | FWD | Anderson | 115 min |
| Jan 5, 10:10 PM CST | Severe Thunderstorm Warning | FWD | Dallas | 65 min |
| Jan 5, 10:13 PM CST | Severe Thunderstorm Warning | FWD | Johnson | 62 min |
| Jan 5, 10:37 PM CST | Severe Thunderstorm Warning | FWD | Henderson | 38 min |
| Jan 5, 10:45 PM CST | Flash Flood Warning | FWD | Henderson, Navarro | 2 hr |
| Jan 5, 11:10 PM CST | Flash Flood Warning | FWD | Collin, Fannin | 3 hr |
| Jan 5, 11:40 PM CST | Flash Flood Warning | FWD | Anderson, Freestone, Henderson, Navarro | 4 hr |
| Jan 5, 11:40 PM CST | Flash Flood Warning | FWD | Falls, Hill, Limestone, McLennan | 4 hr |
| Jan 5, 11:40 PM CST | Flash Flood Warning | FWD | Ellis, Kaufman | 4 hr |
| Jan 5, 11:40 PM CST | Flash Flood Warning | FWD | Van Zandt | 4 hr |
| Jan 6, 12:12 AM CST | Severe Thunderstorm Warning | FWD | Kaufman | 63 min |
| Jan 6, 3:58 AM CST | Flash Flood Warning | FWD | Anderson, Freestone, Henderson, Navarro | 5 hr |
| Jan 6, 3:58 AM CST | Flash Flood Warning | FWD | Ellis, Hill, Kaufman | 5 hr |
| Jan 6, 3:58 AM CST | Flash Flood Warning | FWD | Falls, Limestone, McLennan | 5 hr |
| Jan 6, 3:58 AM CST | Flash Flood Warning | FWD | Van Zandt | 5 hr |
| Jan 6, 9:15 AM CST | Flash Flood Warning | FWD | Anderson, Freestone, Henderson, Navarro | 3 hr |
| Jan 6, 9:55 AM CST | Severe Thunderstorm Warning | FWD | Lampasas | 65 min |
| Jan 6, 10:28 AM CST | Severe Thunderstorm Warning | FWD | Milam | 62 min |
| Jan 6, 11:11 AM CST | Flash Flood Warning | FWD | Bell, Falls, Limestone, Milam | 7 hr |
| Jan 6, 11:11 AM CST | Flash Flood Warning | FWD | Anderson, Freestone, Henderson, Navarro | 7 hr |
| Jan 6, 5:57 PM CST | Flash Flood Warning | FWD | Anderson, Freestone, Henderson, Limestone, Navarro | 7 hr |
| Jan 6, 5:57 PM CST | Flash Flood Warning | FWD | Bell, Falls | 7 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.