Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 153, NWS Fort Worth, TX

May 14, 2003Cooke County, Grayson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 14, 2003, 4:32 AM CDT for Cooke County, Grayson County, Texas. It was in force for 58 min. 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 14, 2003, 4:32 AM CDT (09:32 UTC)
Expired: May 14, 2003, 5:30 AM CDT
In force: 58 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

Counties Cooke County, TX, Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 123 km from the middle of the area, began a volume at 09:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 14, 4:05 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 9.5 hours before the alert went out and 95 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: 3069 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 286 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 17.2

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 14, 3:30 AM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, May 14, 3:30 AM CDT, 1 hour 2 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
330 AM CDT WED MAY 14 2003

.UPDATED PUBLIC DISCUSSION...
SEVERE THUNDERSTORMS ACROSS SOUTHERN OKLAHOMA WILL LIKELY MOVE INTO
THE RED RIVER COUNTIES OF NORTH TEXAS BETWEEN 400 AND 500 AM.  THESE
STORMS HAVE A HISTORY OF PRODUCING HAIL BIGGER THAN BASEBALLS.  59

EVEN THOUGH AVN KEEPS UPPER SYSTEM MOVING IN FROM THE SOUTHWEST
FURTHER NORTH THAN MESO ETA...STILL APPEARS TO BE ACTIVE WEATHER
PATTERN FOR NORTH TEXAS TODAY THROUGH FRIDAY.  CURRENTLY NORTHWEST
FLOW STORMS IN OKLAHOMA DEVELOPING SOUTHWARD TO THE RED RIVER.
STORMS WILL CONTINUE TO DEVELOP AND SPREAD SOUTHEAST INTO THE RED
RIVER COUNTIES FOR THE NEXT FEW HOURS.  MODELS BRING A WEAK BOUNDARY
THROUGH NORTH TEXAS EARLY TONIGHT...BUT DO NOT THINK IT WILL GET
THIS FAR SOUTH.  STILL LOOKS LIKE ANOTHER NORTHWEST FLOW EVENT
TONIGHT ACROSS OKLAHOMA AND NORTH TEXAS.  RAIN CHANCES WILL BE THE
BEST ON FRIDAY AS STRONG SURFACE LOW DEVELOPS IN WEST TEXAS AND
MOVES EAST NORTHEAST INTO OKLAHOMA....WITH THE DRY LINE TRAILING TO
THE SOUTHWEST.  AT THIS TIME IT DOES NOT APPEAR THE CAP WILL BE AS
STRONG AS WITH LAST WEEKS SYSTEM...SO THERE MAY BE A SIGNIFICANT
SEVERE WEATHER THREAT ACROSS NORTH TEXAS FRIDAY AFTERNOON AND
NIGHT.  WEEKEND LOOKS GOOD AS UPPER LOW MOVES EAST OF AREA AND DRIER
AND SOMEWHAT COOLER SPREADS INTO NORTH TEXAS.

FCSTID =   59
DFW   86  73  88  73 /  30  40  30  30
ACT   88  72  89  73 /  20  20  20  10
PRX   85  67  86  68 /  50  50  30  30
DTO   86  68  88  69 /  50  50  30  30
TKI   86  69  87  70 /  50  50  30  30
DAL   86  71  88  71 /  30  40  30  30
TRL   86  71  88  71 /  30  40  30  30
CRS   87  71  89  72 /  20  20  20  20
TPL   90  72  90  74 /  20  20  10  10

.FWD...
TX...NONE.

Hazardous weather outlook, May 13, 3:50 PM CDT, 12 hours 42 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 5:31 AM CDT	Severe Thunderstorm Warning	FWD	Grayson	44 min
May 14, 5:51 AM CDT	Severe Thunderstorm Warning	FWD	Fannin	24 min
May 14, 7:33 AM CDT	Severe Thunderstorm Warning	FWD	Lamar	42 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003 Every severe thunderstorm warning in 2003

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.