Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 47, NWS Fort Worth, TX

May 25, 1999Van Zandt County, Texas

NWS Fort Worth, TX issued this flash flood warning at May 25, 1999, 8:45 PM CDT for Van Zandt County, Texas. It was in force for 2 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: May 25, 1999, 8:45 PM CDT (01:45 UTC)
Expired: May 25, 1999, 10:45 PM CDT
In force: 2 hr
Issued by: NWS Fort Worth, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 137 km from the middle of the area, began a volume at 01:48 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, 1.8 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1344 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1377 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -56 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

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 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, May 25, 6:23 PM CDT, 2 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
623 PM CDT TUE MAY 25 1999

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

0555 PM    HALTOM CITY               TX   .88 INCH HAIL
05/25/99   TARRANT                        NICKEL HAIL REPORTED BY
                                          SPOTTER

0555 PM    MALAKOFF                  TX   1.75 INCH HAIL
05/25/99   HENDERSON                      GOLFBALL HAIL REPORTED BY
                                          P.D.

Local storm report, May 25, 7:43 PM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
743 PM CDT TUE MAY 25 1999

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

0704 PM    SACHSE                    TX   1 INCH HAIL
05/25/99   DALLAS

0718 PM    WYLIE                     TX   1 INCH HAIL
05/25/99   COLLIN

Local storm report, May 25, 7:43 PM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
743 PM CDT TUE MAY 25 1999

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

0704 PM    SACHSE                    TX   1 INCH HAIL
05/25/99   DALLAS

0718 PM    WYLIE                     TX   1 INCH HAIL
05/25/99   COLLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 7:05 PM CDT	Severe Thunderstorm Warning	FWD	Collin	55 min
May 25, 7:48 PM CDT	Severe Thunderstorm Warning	FWD	Henderson	42 min
May 25, 7:52 PM CDT	Severe Thunderstorm Warning	FWD	Stephens	53 min
May 25, 7:54 PM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	51 min
May 25, 8:21 PM CDT	Severe Thunderstorm Warning	FWD	Rains	39 min
May 25, 8:38 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	52 min
May 25, 9:06 PM CDT	Severe Thunderstorm Warning	FWD	Hopkins	39 min
May 25, 9:09 PM CDT	Severe Thunderstorm Warning	FWD	Erath	66 min
May 25, 9:16 PM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	59 min
May 25, 9:49 PM CDT	Severe Thunderstorm Warning	FWD	Dallas	41 min
May 25, 10:07 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman, Rockwall	53 min
May 25, 10:18 PM CDT	Severe Thunderstorm Warning	FWD	Henderson	42 min
May 25, 10:26 PM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	64 min
May 25, 10:35 PM CDT	Flash Flood Warning	FWD	Van Zandt	3 hr
May 25, 11:17 PM CDT	Flash Flood Warning	FWD	Dallas, Kaufman, Rockwall	3 hr
May 26, 2:00 AM CDT	Flash Flood Warning	FWD	Henderson	2 hr
May 26, 3:20 AM CDT	Severe Thunderstorm Warning	FWD	Stephens	40 min
May 26, 3:24 AM CDT	Severe Thunderstorm Warning	FWD	Young	66 min
May 26, 3:38 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	67 min
May 26, 3:57 AM CDT	Severe Thunderstorm Warning	FWD	Jack	63 min
May 26, 4:32 AM CDT	Severe Thunderstorm Warning	FWD	Parker, Wise	43 min
May 26, 4:40 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	50 min
May 26, 5:09 AM CDT	Severe Thunderstorm Warning	FWD	Tarrant	61 min
May 26, 5:20 AM CDT	Severe Thunderstorm Warning	FWD	Parker	30 min
May 26, 5:43 AM CDT	Flash Flood Warning	FWD	Dallas, Tarrant	2 hr

Nearby

Flash Flood Warnings in Texas, 1999 Every flash flood 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.