Alert archive / Texas / Tornado Watches in 2006

Tornado Watch 45

March 8, 200620 counties in Oklahoma; 23 counties in Texas

The Storm Prediction Center issued this tornado watch at Mar 8, 2006, 11:42 PM CST for 20 counties in Oklahoma; 23 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 8, 2006, 11:42 PM CST (05:42 UTC)
Expired
Mar 9, 2006, 6:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 43 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, McCurtain County, OK, Murray County, OK, Pontotoc County, OK, Pushmataha County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Camp County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Delta County, TX, Denton County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Lamar County, TX, Montague County, TX, Morris County, TX, Red River County, TX, Titus County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX

The radar

The Norman radar (KTLX), 103 km from the middle of the area, began a volume at 05:42 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

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

IssuedProductOfficeCountiesLasted
Mar 8, 11:44 PM CSTSevere Thunderstorm WarningOUNCarter, Murray46 min
Mar 8, 11:58 PM CSTSevere Thunderstorm WarningOUNPontotoc62 min
Mar 8, 11:59 PM CSTTornado WarningOUNLove46 min
Mar 9, 12:01 AM CSTSevere Thunderstorm WarningFWDCooke20 min
Mar 9, 12:23 AM CSTTornado WarningOUNCarter, Johnston, Marshall52 min
Mar 9, 12:39 AM CSTSevere Thunderstorm WarningOUNCoal51 min
Mar 9, 12:58 AM CSTSevere Thunderstorm WarningOUNAtoka38 min
Mar 9, 1:17 AM CSTSevere Thunderstorm WarningTSAHaskell, Latimer, Muskogee73 min
Mar 9, 1:20 AM CSTSevere Thunderstorm WarningOUNJefferson23 min
Mar 9, 1:22 AM CSTSevere Thunderstorm WarningSHVRed River38 min
Mar 9, 1:28 AM CSTSevere Thunderstorm WarningSHVMcCurtain62 min
Mar 9, 1:32 AM CSTSevere Thunderstorm WarningSHVFranklin, Titus58 min
Mar 9, 1:37 AM CSTSevere Thunderstorm WarningOUNCarter, Murray38 min
Mar 9, 1:40 AM CSTSevere Thunderstorm WarningTSAAdair, Cherokee, LeFlore, Sequoyah61 min
Mar 9, 2:06 AM CSTTornado WarningTSALeFlore32 min
Mar 9, 4:15 AM CSTSevere Thunderstorm WarningTSALeFlore, Sequoyah35 min
Mar 9, 5:24 AM CSTSevere Thunderstorm WarningFWDHopkins51 min
Mar 9, 5:56 AM CSTSevere Thunderstorm WarningSHVMcCurtain64 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

Norman, OK (KOUN), launched 00:00Z, 5.7 hours before the alert went out and 88 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, Norman, OK at 00:00Z on 2006-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 727 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, Norman, OK at 00:00Z on 2006-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 square meters per square second.1939587897117136Sfc1 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
727 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1304 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS20 KWNS 090541
SEL5  
SPC WW 090541
OKZ000-TXZ000-091200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 45
NWS STORM PREDICTION CENTER NORMAN OK
1140 PM CST WED MAR 8 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHERN OKLAHOMA
       NORTHERN TEXAS

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1140 PM
UNTIL 600 AM CST.

TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 120 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF ARDMORE
OKLAHOMA TO 45 MILES WEST SOUTHWEST OF SHERMAN TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 42. WATCH NUMBER 42 WILL NOT BE IN EFFECT AFTER 1140
PM CST. CONTINUE...WW 43...WW 44...

DISCUSSION...VERTICAL SHEAR PROFILES CONTINUE TO IMPROVE ACROSS AREA
AS MID/UPPER LEVEL TROUGH MOVES INTO WRN TX CAUSING LOWER LEVEL
WINDS TO BACK. VERY STRONG DEEP LAYER SHEAR OF 60-70 KT WITH MUCAPE
TO 1000 J/KG HAS CREATED ENVIRONMENT FOR TORNADOES AND LARGE HAIL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 25035.


...MCCARTHY

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 8, 8:22 PM CSTMesoscale DiscussionSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 49 more53 min
Mar 8, 8:26 PM CSTSevere Thunderstorm WatchSPCCaddo, Canadian, Cleveland, Creek, Garfield, Grady and 24 more5 hr
Mar 8, 10:51 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Comanche and 11 more24 min
Mar 8, 11:44 PM CSTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Creek, Garfield, Grady and 24 more91 min
Mar 9, 1:14 AM CSTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Creek, Delaware, Haskell and 16 more6 hr
Mar 9, 1:57 AM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Haskell and 14 more63 min
Mar 9, 5:48 AM CSTTornado WatchSPCMcCurtain6 hr
Mar 9, 6:10 AM CSTMesoscale DiscussionSPCAdair, Cherokee, Haskell, Latimer, LeFlore, Sequoyah95 min
Mar 9, 10:34 AM CSTMesoscale DiscussionSPCAdair, Cherokee, Delaware, LeFlore, McCurtain, Ottawa and 1 more116 min
Mar 9, 12:30 PM CSTSevere Thunderstorm WatchSPCAdair, Cherokee, Haskell, Latimer, LeFlore, Muskogee and 2 more6 hr
Mar 8, 11:02 PM CSTMesoscale DiscussionSPCAtascosa, Bandera, Bastrop, Bell, Bexar, Blanco and 32 more88 min
Mar 8, 11:25 PM CSTTornado WatchSPCAnderson, Bastrop, Bell, Bexar, Blanco, Burnet and 31 more7 hr
Mar 9, 1:36 AM CSTTornado WatchSPCBowie, Cass5 hr
Mar 9, 5:14 AM CSTMesoscale DiscussionSPCAngelina, Hardin, Harrison, Houston, Jasper, Jefferson and 14 more91 min
Mar 9, 11:05 AM CSTMesoscale DiscussionSPCOrange85 min

Nearby

Tornado Watches in Texas, 2006Tornado Watches in Oklahoma, 2006Every tornado watch in 2006

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.