Alert archive / Oklahoma / Tornado Watches in 2000

Tornado Watch 360

May 26, 200011 counties in Kansas; 16 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at May 26, 2000, 12:30 AM CDT for 11 counties in Kansas; 16 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 26, 2000, 12:30 AM CDT (05:30 UTC)
Expired: May 26, 2000, 6:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 27 counties

Chautauqua County, KS, Cherokee County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Harper County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Sumner County, KS, Wilson County, KS, Craig County, OK, Delaware County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Mayes County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Wichita radar (KICT), 97 km from the middle of the area, began a volume at 05:34 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

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

Issued	Product	Office	Counties	Lasted
May 26, 12:59 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	46 min
May 26, 1:03 AM CDT	Tornado Warning	OUN	Garfield	27 min
May 26, 1:09 AM CDT	Severe Thunderstorm Warning	ICT	Sedgwick, Sumner	66 min
May 26, 1:24 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	51 min
May 26, 1:45 AM CDT	Severe Thunderstorm Warning	SGF	Bourbon, Crawford	60 min
May 26, 1:50 AM CDT	Severe Thunderstorm Warning	ICT	Cowley	55 min
May 26, 1:52 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	68 min
May 26, 2:09 AM CDT	Flash Flood Warning	ICT	Harper	6 hr
May 26, 2:21 AM CDT	Severe Thunderstorm Warning	ICT	Chautauqua	54 min
May 26, 2:46 AM CDT	Severe Thunderstorm Warning	ICT	Elk	59 min
May 26, 2:56 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	64 min
May 26, 3:33 AM CDT	Severe Thunderstorm Warning	TSA	Washington	57 min
May 26, 3:51 AM CDT	Flash Flood Warning	TSA	Osage, Pawnee	2 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 5.5 hours before the alert went out and 81 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: 1965 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

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

000 
WWUS9 KMKC 260515
MKC WW 260515
KSZ000-OKZ000-261100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 360
STORM PREDICTION CENTER NORMAN OK
1215 AM CDT FRI MAY 26 2000

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

   SOUTHERN KANSAS                             
   NORTHERN OKLAHOMA                           

EFFECTIVE THIS FRIDAY MORNING FROM 1230 AM UNTIL 600 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 60 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 30 MILES NORTH NORTHWEST OF ENID OKLAHOMA TO
70 MILES SOUTHEAST OF CHANUTE KANSAS.

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...  CONTINUE...WW 358...WW 359...

DISCUSSION...SEVERE SQUALL LINE HAS DEVELOPED VICINITY CENTRAL
KS/OK BORDER EXTENDING SWD INTO NCENTRAL OK.  VERY UNSTABLE AIRMASS
STILL AVAILABLE AHEAD OF SQUALL LINE AND WITH VEERING SHEAR
PROFILES...ISOLATED TORNADIC SUPERCELLS LIKELY TO OCCUR NEXT FEW
HOURS AS LINE MOVES EWD. 


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 550. 
MEAN STORM MOTION VECTOR 26030.


...HALES

;373,0980 374,0943 360,0943 355,0980;

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 2:30 PM CDT	Tornado Watch	SPC	Allen, Anderson, Atchison, Brown, Butler, Chase and 46 more	7 hr
May 26, 5:45 PM CDT	Tornado Watch	SPC	Bourbon, Doniphan, Johnson, Leavenworth, Linn, Miami and 1 more	5 hr
May 25, 9:00 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 15 more	6 hr
May 26, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 5 more	6 hr
May 26, 6:00 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Atoka, Carter, Cherokee, Cleveland, Coal and 19 more	5 hr
May 26, 4:30 PM CDT	Tornado Watch	SPC	Beckham, Caddo, Comanche, Cotton, Greer, Harmon and 4 more	6 hr

Nearby

Tornado Watches in Oklahoma, 2000 Tornado Watches in Kansas, 2000 Every 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.