Alert archive / Nebraska / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 415

June 3, 20007 counties in Kansas; 27 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 3, 2000, 6:30 PM CDT for 7 counties in Kansas; 27 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 3, 2000, 6:30 PM CDT (23:30 UTC)
Expired
Jun 4, 2000, 12:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 34 counties

Cheyenne County, KS, Decatur County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Antelope County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 149 km from the middle of the area, began a volume at 23:31 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

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

IssuedProductOfficeCountiesLasted
Jun 3, 6:59 PM CDTSevere Thunderstorm WarningGLDCheyenne61 min
Jun 3, 7:02 PM CDTSevere Thunderstorm WarningLBFBoyd58 min
Jun 3, 7:23 PM CDTSevere Thunderstorm WarningOAXKnox52 min
Jun 3, 8:14 PM CDTSevere Thunderstorm WarningOAXAntelope, Knox46 min
Jun 3, 8:28 PM CDTTornado WarningOAXAntelope, Knox32 min
Jun 3, 9:00 PM CDTTornado WarningOAXAntelope30 min
Jun 3, 9:39 PM CDTSevere Thunderstorm WarningOAXAntelope, Knox66 min

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.5 hours before the alert went out and 57 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, N. Platte/Lee Bi, NE at 12:00Z on 2000-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 12:00Z on 2000-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1339 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
365 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.

591 
WWUS9 KMKC 032303
SEL5  
MKC WW 032303
COZ000-KSZ000-NEZ000-040500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 415
STORM PREDICTION CENTER NORMAN OK
603 PM CDT SAT JUN 3 2000

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

   EXTREME EASTERN COLORADO                           
   NORTHWEST KANSAS                             
   SOUTHWEST AND CENTRAL NEBRASKA                           

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 630 PM UNTIL
MIDNIGHT CDT.

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 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 20 MILES SOUTH SOUTHEAST OF GOODLAND
KANSAS TO 85 MILES NORTH NORTHEAST OF BURWELL NEBRASKA.

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 413...WW 414...

DISCUSSION...SURFACE TROUGH FROM E OF VTN SWWD TO W OF GLD WILL
FOCUS SEVERE THUNDERSTORM DEVELOPMENT. E OF TROUGH MODERATE
INSTABILITY WITH CAPES TO 2500 J/KG...WHILE W OF TROUGH VERY DEEP
MIXED AIRMASS.  STRONG DIRECTIONAL SHEAR PROFILES FAVOR ROTATING
STORMS...HOWEVER HIGH BASED NATURE WILL SUPPPORT PRIMARILY LARGE
HAIL AND DAMAGING DOWNBURST WINDS.


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 550.  MEAN STORM
MOTION VECTOR 30020.


...HALES

390,1024 425,0994 425,0971 390,1002

Nearby

Severe Thunderstorm Watches in Nebraska, 2000Severe Thunderstorm Watches in Kansas, 2000Every 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.