Alert archive / Texas / Tornado Watches in 2000

Tornado Watch 370

May 26, 200015 counties in Oklahoma; 19 counties in Texas

The Storm Prediction Center issued this tornado watch at May 26, 2000, 8:30 PM CDT for 15 counties in Oklahoma; 19 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 26, 2000, 8:30 PM CDT (01:30 UTC)
Expired
May 27, 2000, 2:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 34 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Denton County, TX, Fannin County, TX, Grayson County, TX, Hunt County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rockwall County, TX, Stephens County, TX, Tarrant County, TX, Wichita County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 120 km from the middle of the area, began a volume at 01:33 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

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

IssuedProductOfficeCountiesLasted
May 26, 8:30 PM CDTTornado WarningFWDYoung30 min
May 26, 8:57 PM CDTSevere Thunderstorm WarningFWDJack63 min
May 26, 9:02 PM CDTSevere Thunderstorm WarningFWDYoung58 min
May 26, 10:00 PM CDTSevere Thunderstorm WarningFWDMontague, Wise60 min
May 26, 10:55 PM CDTSevere Thunderstorm WarningFWDCooke65 min
May 26, 11:16 PM CDTSevere Thunderstorm WarningFWDDenton59 min
May 26, 11:24 PM CDTSevere Thunderstorm WarningFWDGrayson66 min
May 26, 11:45 PM CDTSevere Thunderstorm WarningOUNBryan45 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.5 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-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2000-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3095 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 00:00Z on 2000-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
3095 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1301 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
1.5
Supercell composite
11.4

Open this sounding in Storm Lab

The text

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

741 
WWUS9 KMKC 270108
SEL0  
MKC WW 270108
OKZ000-TXZ000-270700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 370
STORM PREDICTION CENTER NORMAN OK
808 PM CDT FRI MAY 26 2000

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

   SOUTHERN OKLAHOMA                           
   NORTH CENTRAL TEXAS                              

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 830 PM UNTIL
200 AM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES SOUTHWEST OF FORT WORTH TEXAS TO 45 MILES
NORTH NORTHWEST OF ARDMORE OKLAHOMA.

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 364.  WATCH NUMBER 364 WILL NOT BE IN EFFECT AFTER 830 PM
CDT.  CONTINUE...WW 362...WW 365...WW 366...WW 367...WW 368...WW
369...

DISCUSSION...RIGHT MOVING SUPERCELL CONTINUES EWD ACROSS YOUNG
COUNTY TX WITH SEVERAL STORMS ALSO OVER SWRN OK.  AIR MASS VERY
UNSTABLE WITH CAPES OF 4500 J/KG.  LOW LEVEL STORM RELATIVE FLOW IS
ESELY AT 10-20 KT WITH DEEP LAYER SHEAR OF 40-50 KT INDICATING THAT
STORMS WILL CONTINUE ACROSS AREA NEXT FEW HOURS.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. 
MEAN STORM MOTION VECTOR 26035.


...MCCARTHY

345,0953 324,0955 324,0990 345,0990

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 7:00 PM CDTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Creek and 26 more6 hr
May 26, 10:00 PM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Delaware, Haskell, Latimer and 10 more6 hr
May 27, 2:00 PM CDTTornado WatchSPCAtoka, Bryan, Carter, Coal, Cotton, Garvin and 7 more6 hr
May 27, 6:00 PM CDTSevere Thunderstorm WatchSPCChoctaw, Latimer, LeFlore, McCurtain, Pushmataha5 hr
May 27, 3:30 PM CDTSevere Thunderstorm WatchSPCBrown, Coleman, Comanche, Concho, Kimble, McCulloch and 8 more6 hr

Nearby

Tornado Watches in Texas, 2000Tornado Watches in Oklahoma, 2000Every tornado watch in 2000

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.