Alert archive / Oklahoma / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 35

February 17, 20006 counties in Kansas; 13 counties in Oklahoma; Lipscomb County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at Feb 17, 2000, 4:45 PM CST for 6 counties in Kansas; 13 counties in Oklahoma; Lipscomb County, Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Feb 17, 2000, 4:45 PM CST (22:45 UTC)
Expired: Feb 17, 2000, 10:00 PM CST
In force: 5 hr
Issued by: the Storm Prediction Center

Counties Barber County, KS, Clark County, KS, Comanche County, KS, Kiowa County, KS, Meade County, KS, Pratt County, KS, Alfalfa County, OK, Beaver County, OK, Blaine County, OK, Canadian County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Harper County, OK, Kingfisher County, OK, Major County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Lipscomb County, TX

The radar

The Vance AFB radar (KVNX), 87 km from the middle of the area, began a volume at 22:45 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

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

Issued	Product	Office	Counties	Lasted
Feb 17, 7:55 PM CST	Severe Thunderstorm Warning	DDC	Edwards, Pratt, Stafford	50 min
Feb 17, 7:55 PM CST	Severe Thunderstorm Warning	DDC	Kiowa	50 min
Feb 17, 9:04 PM CST	Severe Thunderstorm Warning	DDC	Barber	36 min

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.8 hours before the alert went out and 135 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1433 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

084 
WWUS9 KMKC 172202
SEL5  
MKC WW 172202
KSZ000-OKZ000-180400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 35
STORM PREDICTION CENTER NORMAN OK
402 PM CST THU FEB 17 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   SOUTHERN KANSAS                             
   NORTHWEST OKLAHOMA                           

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 445 PM UNTIL
1000 PM CST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 65 MILES WEST NORTHWEST OF MEDICINE
LODGE KANSAS TO 20 MILES EAST OF CLINTON OKLAHOMA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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 34...

DISCUSSION...THUNDERSTORMS EXPECTED TO INCREASE THIS EVENING AS
STRONG UPPER TROUGH EJECTS EWD. LARGE HAIL AND DAMAGING WINDS ARE
POSSIBLE GIVEN STEEP LAPSE RATES AND STRONG DEEP LAYER SHEAR.


AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 24040.


...VESCIO

373,0982 351,0974 351,1000 373,1005

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 17, 7:00 AM CST	Severe Thunderstorm Watch	SPC	Adair, Atoka, Canadian, Carter, Cherokee, Cleveland and 31 more	5 hr
Feb 17, 4:00 PM CST	Tornado Watch	SPC	Atoka, Beckham, Bryan, Caddo, Carter, Cleveland and 20 more	6 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 2000 Severe Thunderstorm Watches in Kansas, 2000 Severe Thunderstorm Watches in Texas, 2000 Every severe thunderstorm 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.