Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 7, NWS Fort Worth, TX
NWS Fort Worth, TX issued this flash flood warning at Jan 4, 1998, 8:08 PM CST for Denton County, Texas. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 4, 1998, 8:08 PM CST (02:08 UTC)
- Expired
- Jan 5, 1998, 1:15 AM CST
- In force
- 5 hr
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties
County Denton County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 72 km from the middle of the area, began a volume at 02:09 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, 2.1 hours before the alert went out and 45 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
- 1525 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 547 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFTW 050210 FFWFTW TXC085-121-147-181-050715- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE FORT WORTH TX 808 PM CST SUN JAN 4 1998 THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 115 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL TEXAS ...COLLIN COUNTY...DENTON COUNTY...FANNIN COUNTY ...GRAYSON COUNTY AT 806 PM NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A LARGE AREA RAINFALL MOVING ACROSS THE AREA. MUCH OF THE AREA HAS HAD 2 TO 4 INCHES RAINFALL TODAY AND ANOTHER 2 INCHES IS POSSIBLE OVER THE NEXT 2 TO 3 HOURS CAUSING ADDITIONAL FLOODING PROBLEMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
What forecasters said that day
The local office's own words before this flash flood 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 4, 6:30 PM CST, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
630 PM CST SUN JAN 04 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0422 PM MC KINNEY TX .75 INCH HAIL
01/04/98 COLLIN 3 MILES SOUTH OF MC KINNEY
0425 PM ALLEN TX 1 INCH HAIL
01/04/98 COLLIN
0430 PM BRANCH TX 1 INCH HAIL
01/04/98 COLLIN
0440 PM MC KINNEY TX FLOODING
01/04/98 COLLIN STREET FLOODING IN
MC KINNEY AND BLUE RIDGE.
HWY 380 SHUT DOWN IN
MCKINNEY.Local storm report, Jan 4, 6:30 PM CST, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
630 PM CST SUN JAN 04 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0422 PM MC KINNEY TX .75 INCH HAIL
01/04/98 COLLIN 3 MILES SOUTH OF MC KINNEY
0425 PM ALLEN TX 1 INCH HAIL
01/04/98 COLLIN
0430 PM BRANCH TX 1 INCH HAIL
01/04/98 COLLIN
0440 PM MC KINNEY TX FLOODING
01/04/98 COLLIN STREET FLOODING IN
MC KINNEY AND BLUE RIDGE.
HWY 380 SHUT DOWN IN
MCKINNEY.The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 4, 7:04 PM CST | Flash Flood Warning | FWD | Erath | 3 hr |
| Jan 4, 7:19 PM CST | Tornado Warning | FWD | Erath | 56 min |
| Jan 4, 7:41 PM CST | Severe Thunderstorm Warning | FWD | Bosque | 64 min |
| Jan 4, 7:50 PM CST | Flash Flood Warning | FWD | Bell | 3 hr |
| Jan 4, 8:08 PM CST | Flash Flood Warning | FWD | Collin, Fannin, Grayson | 5 hr |
| Jan 4, 8:18 PM CST | Flash Flood Warning | FWD | Falls, McLennan | 5 hr |
| Jan 4, 8:22 PM CST | Severe Thunderstorm Warning | FWD | Falls | 38 min |
| Jan 4, 8:36 PM CST | Flash Flood Warning | FWD | Dallas | 4 hr |
| Jan 4, 9:02 PM CST | Tornado Warning | FWD | Falls | 28 min |
| Jan 4, 9:30 PM CST | Severe Thunderstorm Warning | FWD | Falls | 60 min |
| Jan 4, 9:35 PM CST | Flash Flood Warning | FWD | Parker, Tarrant | 3 hr |
| Jan 4, 9:57 PM CST | Flash Flood Warning | FWD | Ellis | 3 hr |
| Jan 4, 9:59 PM CST | Severe Thunderstorm Warning | FWD | Limestone | 61 min |
| Jan 4, 10:30 PM CST | Severe Thunderstorm Warning | FWD | Falls | 30 min |
| Jan 4, 10:58 PM CST | Flash Flood Warning | FWD | Limestone | 3 hr |
| Jan 4, 11:00 PM CST | Severe Thunderstorm Warning | FWD | Limestone | 30 min |
| Jan 4, 11:09 PM CST | Severe Thunderstorm Warning | FWD | Freestone | 66 min |
| Jan 5, 12:10 AM CST | Severe Thunderstorm Warning | FWD | Freestone | 35 min |
| Jan 5, 12:39 AM CST | Severe Thunderstorm Warning | FWD | Anderson | 66 min |
| Jan 5, 12:48 AM CST | Flash Flood Warning | FWD | Fannin | 3 hr |
| Jan 5, 12:48 AM CST | Flash Flood Warning | FWD | Falls, Limestone | 3 hr |
| Jan 5, 3:52 AM CST | Flash Flood Warning | FWD | Falls, Limestone | 3 hr |
| Jan 5, 5:06 PM CST | Severe Thunderstorm Warning | FWD | Leon | 69 min |
| Jan 5, 5:43 PM CST | Severe Thunderstorm Warning | FWD | Mills | 62 min |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood 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.