Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 47

March 17, 200325 counties in Oklahoma; 35 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Mar 17, 2003, 12:45 PM CST for 25 counties in Oklahoma; 35 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 17, 2003, 12:45 PM CST (18:45 UTC)
Expired
Mar 17, 2003, 7:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 60 counties

Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kiowa County, OK, Love County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Okfuskee County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Anderson County, TX, Archer County, TX, Bosque County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Denton County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Limestone County, TX, McLennan County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Van Zandt County, TX, Wichita County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 153 km from the middle of the area, began a volume at 18:45 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.

Warnings issued inside it

33 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 17, 1:43 PM CSTSevere Thunderstorm WarningOUNGarvin47 min
Mar 17, 1:55 PM CSTSevere Thunderstorm WarningOUNKiowa65 min
Mar 17, 2:06 PM CSTSevere Thunderstorm WarningFWDYoung54 min
Mar 17, 2:08 PM CSTSevere Thunderstorm WarningOUNMcClain, Pottawatomie52 min
Mar 17, 2:41 PM CSTTornado WarningOUNKiowa34 min
Mar 17, 2:48 PM CSTSevere Thunderstorm WarningOUNGarvin, Stephens42 min
Mar 17, 2:52 PM CSTSevere Thunderstorm WarningOUNCotton53 min
Mar 17, 2:56 PM CSTSevere Thunderstorm WarningFWDYoung49 min
Mar 17, 2:59 PM CSTSevere Thunderstorm WarningOUNWashita61 min
Mar 17, 3:04 PM CSTSevere Thunderstorm WarningOUNCaddo56 min
Mar 17, 3:06 PM CSTSevere Thunderstorm WarningFWDPalo Pinto54 min
Mar 17, 3:13 PM CSTTornado WarningOUNKiowa32 min
Mar 17, 3:22 PM CSTTornado WarningOUNCaddo23 min
Mar 17, 3:43 PM CSTTornado WarningOUNWashita47 min
Mar 17, 3:46 PM CSTSevere Thunderstorm WarningOUNCotton44 min
Mar 17, 4:11 PM CSTSevere Thunderstorm WarningOUNCaddo49 min
Mar 17, 4:12 PM CSTSevere Thunderstorm WarningFWDPalo Pinto63 min
Mar 17, 4:32 PM CSTSevere Thunderstorm WarningOUNCanadian58 min
Mar 17, 4:34 PM CSTSevere Thunderstorm WarningOUNCotton56 min
Mar 17, 4:36 PM CSTTornado WarningOUNCaddo24 min
Mar 17, 4:40 PM CSTSevere Thunderstorm WarningOUNStephens65 min
Mar 17, 4:49 PM CSTSevere Thunderstorm WarningFWDParker71 min
Mar 17, 5:00 PM CSTTornado WarningOUNCaddo30 min
Mar 17, 5:07 PM CSTTornado WarningOUNCanadian23 min
Mar 17, 5:13 PM CSTSevere Thunderstorm WarningOUNComanche47 min
Mar 17, 5:15 PM CSTTornado WarningOUNStephens45 min
Mar 17, 5:17 PM CSTSevere Thunderstorm WarningFWDPalo Pinto43 min
Mar 17, 5:29 PM CSTSevere Thunderstorm WarningOUNCanadian61 min
Mar 17, 5:32 PM CSTTornado WarningFWDPalo Pinto43 min
Mar 17, 5:49 PM CSTTornado WarningFWDParker41 min
Mar 17, 6:01 PM CSTTornado WarningOUNComanche, Stephens29 min
Mar 17, 6:31 PM CSTSevere Thunderstorm WarningOUNGrady, Stephens44 min
Mar 17, 6:43 PM CSTSevere Thunderstorm WarningOUNCleveland47 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 6.8 hours before the alert went out and 125 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-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2003-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 365 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2003-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
365 J/kg
Mixed-layer CIN
-231 J/kg
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 8:09 PM CSTMesoscale DiscussionSPCBeckham, Greer, Harmon, Jackson3 hr
Mar 17, 11:40 AM CSTMesoscale DiscussionSPCAlfalfa, Beaver, Blaine, Caddo, Canadian, Comanche and 16 more3 hr
Mar 17, 1:55 PM CSTSevere Thunderstorm WatchSPCAlfalfa, Blaine, Custer, Dewey, Garfield, Grant and 10 more5 hr
Mar 17, 2:47 PM CSTMesoscale DiscussionSPCAlfalfa, Blaine, Canadian, Garfield, Grant, Kingfisher and 2 more118 min
Mar 17, 3:02 PM CSTMesoscale DiscussionSPCCarter, Jefferson, Love118 min
Mar 17, 3:24 PM CSTMesoscale DiscussionSPCBeaver, Beckham, Carter, Greer, Jackson, Jefferson and 3 more2 hr
Mar 17, 5:50 PM CSTTornado WatchSPCBryan, Caddo, Canadian, Carter, Cleveland, Coal and 19 more5 hr
Mar 17, 11:17 AM CSTMesoscale DiscussionSPCAnderson, Bosque, Collin, Dallas, Denton, Ellis and 19 more2 hr

Nearby

Severe Thunderstorm Watches in Texas, 2003Severe Thunderstorm Watches in Oklahoma, 2003Every severe thunderstorm watch 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.