Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 114, NWS Fort Worth, TX

May 3, 2002Van Zandt County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 3, 2002, 7:30 AM CDT for Van Zandt County, Texas. It was in force for 45 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: May 3, 2002, 7:30 AM CDT (12:30 UTC)
Expired: May 3, 2002, 8:15 AM CDT
In force: 45 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

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 12:29 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
May 3, 7:55 AM CDT	Thunderstorm Wind 50 E	Wills Pt, TX	Large tree limbs were blown down.

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

Shreveport, LA (KSHV), launched 12:00Z, 0.5 hours before the alert went out and 196 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: 233 J/kg
Mixed-layer CIN: -352 J/kg
Mixed-layer LCL: 421 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 280 m²/s²
0-3 km storm-relative helicity: 253 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.8

Open this sounding in Storm Lab

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.

NWS Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 3, 7:12 AM CDT, 18 minutes earlier.

Area forecast discussion, May 3, 7:12 AM CDT, 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
712 AM CDT FRI MAY 3 2002

WILL ISSUE AN UPDATE MAINLY TO RAISE POPS AS ISETROPIC LIFT
CONTINUES TO PRODUCE ELEVATED RAIN AND THUNDERSTORMS ACROSS THE
FORECAST AREA.  EXPECT RAIN AND THUNDERSTORMS TO DECREASE IN
COVERAGE BY LATE MORNING...HOWEVER REDEVELOPMENT WILL BE POSSIBLE
THIS AFTERNOON.  NO OTHER MAJOR CHANGES ANTICIPATED WITH THIS UPDATE.

FCSTID = 79
DFW   76  64  86  66 /  80  40  40  40
ACT   81  66  87  68 /  60  40  40  40

.FWD...SEVERE THUNDERSTORM WATCH UNTIL 1000 AM CDT FRIDAY FOR ZONES
TXC001...TXC027...TXC035...TXC093...TXC099...TXC133...TXC139...TXC143
...TXC145...TXC161...TXC193...TXC213...TXC217...TXC251...TXC281
...TXC289...TXC293...TXC309...TXC331...TXC333...TXC349...TXC395...TXC
425.

In the hours before

Special weather statement, May 3, 2:43 AM CDT, 4 hours 47 minutes before

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-031945-

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
243 AM CDT FRI MAY 3 2002

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY ACROSS ALL OF
NORTH CENTRAL TEXAS.  THE STORMS WILL BE ELEVATED SO THE MAIN THREAT
WILL BE LARGE HAIL...WITH DAMAGING WINDS POSSIBLE.

EARLY THIS MORNING A STATIONARY FRONT EXTENDED FROM DEL RIO TO NEAR
LUFKIN.  WARM MOIST UNSTABLE AIR IS BEING LIFTED OVER THE FRONT
NORTHWARD ACROSS NORTH TEXAS.  THE AIRMASS ACROSS NORTH TEXAS WILL
DESTABILIZE DURING THE EARLY MORNING INTO THIS AFTERNOON...AS AN
UPPER LEVEL DISTURBANCE APPROACHES THE AREA.  ONGOING THUNDERSTORMS
THIS MORNING WILL BECOME MORE NUMEROUS DURING THE DAY..WITH SOME OF
THESE STORMS SEVERE.

THERE WILL ALSO BE A SLIGHT RISK OF SEVERE THUNDERSTORMS AREA WIDE
SATURDAY NIGHT AS THE STATIONARY FRONT BEGINS MOVING NORTH AS A WARM
FRONT.  STRONG LOW LEVEL WINDS WILL DEVELOP ACROSS THE
FRONT...CREATING A THREAT OF LARGE HAIL ACROSS THE REGION.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 4:23 AM CDT	Severe Thunderstorm Warning	FWD	Comanche, Eastland	52 min
May 3, 4:55 AM CDT	Severe Thunderstorm Warning	FWD	Erath	50 min
May 3, 5:17 AM CDT	Severe Thunderstorm Warning	FWD	Hood, Somervell	43 min
May 3, 6:13 AM CDT	Flash Flood Warning	FWD	Erath	3 hr
May 3, 6:32 AM CDT	Severe Thunderstorm Warning	FWD	Ellis	58 min
May 3, 7:08 AM CDT	Severe Thunderstorm Warning	FWD	Kaufman	37 min
May 3, 7:22 AM CDT	Severe Thunderstorm Warning	FWD	Bosque	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002 Every severe thunderstorm warning in 2002

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.