Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 118, NWS North Platte, NE

June 23, 2000Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 23, 2000, 11:13 PM CDT for Custer County, Nebraska. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 23, 2000, 11:13 PM CDT (04:13 UTC)
Expired: Jun 24, 2000, 12:15 AM CDT
In force: 62 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Custer County, NE

What was reported inside it

Time	Report	Where	Remark
Jun 23, 11:20 PM CDT	Hail 0.88	Arnold, NE	Tree damage.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 23, 9:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.2 hours before the alert went out and 79 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: 1315 J/kg
Mixed-layer CIN: -180 J/kg
Mixed-layer LCL: 2212 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 240414
SVRLBF
NEC041-240515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1113 PM CDT FRI JUN 23 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN AND CENTRAL CUSTER COUNTY IN CENTRAL NEBRASKA

* UNTIL 1215 AM CDT

* AT 1111 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTH OF ARNOLD...MOVING EAST AT 35
  MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  11 MILES SOUTH OF ANSELMO AROUND 1135 PM CDT
  NEAR MERNA AROUND 1145 PM CDT
  NEAR BROKEN BOW AROUND MIDNIGHT CDT
  6 MILES NORTH OF BERWYN AROUND 1210 AM CDT
  NEAR WEISSERT AROUND 1215 AM CDT

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IN A SMALL
INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST
PROTECTION.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY/
TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
SATURDAY MORNING FOR WESTERN NEBRASKA.

GEB

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 1:46 PM CDT, 9 hours 27 minutes earlier.

Area forecast discussion, Jun 23, 1:46 PM CDT, 9 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
146 PM CDT FRI JUN 23 2000

FORECAST CHALLENGE WILL BE POPS THROUGH THE WEEKEND...

SOME BIG DIFFERENCES BETWEEN MODELS THROUGH THE WEEKEND.NGM AND ETA
DIFFER ON SURFACE FEATURES...WITH AVN SORT OF A BLEND OF THE
TWO.  APPEARS THE ETA IS ON TRACK WITH SURFACE LOW OVER EASTERN
CO COMPARED TO LATEST SURFACE ANALYSIS. NGM WAS TOO WEAK AND
DIFFUSE...PUTTING BROAD WEAK LOW OVER ENTIRE STATE. PREFER A BLEND OF
ETA AND AVN FOR FORECAST.

BOUNDARIES STILL ABOUND. OUTFLOW BOUNDARY CONTINUES TO MOVE
SOUTHWEST ACROSS CWA PER VIS SAT PIX.  SMALL SHOWERS HAVE POPPED UP
IN CUSTER COUNTY ALREADY...ALBEIT SHORT LIVED.  WARM FRONT HAS
MIGRATED NORTH OF MCK. CU CUT OFF SURFACE HEATING OVER SOUTHWEST
ZONES.  DRY LINE DOES NOT APPEAR TO HAVE BULGED EAST YET AT ALL.
MODIFIED LBF SOUNDING STILL LOOKED CAPPED...BUT POSSIBILITY OF
ELEVATED CONVECTION EXISTS AND IS MORE LIKELY SCENARIO.

SATURDAY DRY PER ETA FOR MOST OF CWA UNTIL 06Z SUNDAY DESPITE HUGE
DAY 2 OUTLOOK. 850 FRONT BY THEN TO SET UP FROM VTN BACK TO SOUTHERN
PANHANDLE. LLJ FEEDING NORTHEAST INTO FSD AREA WHICH IS WHERE MAIN
FOCUS FOR SATURDAY NIGHT/SUNDAY MORNING CONVECTION WILL BE...BUT SOME
MAY MAKE IT INTO ANW ONL AREA.  THINK VTN MAY BE LEFT OUT AS THEY ARE
IN WEAK NORTH FLOW BY THEN.  NORTHEAST ZONES PRIMARY THREAT FOR ANY
POPS...BUT WILL COORDINATE AS TIME PERMITS.

SUNDAY LOOKS CLOUDY AND COOLER WITH TEMPS IN 70S OVER CWA.  LEFT
OVER CLOUDINESS FROM MCS WILL DOMINATE NORTHEAST ZONES.

EXTENDED...FAST ZONAL FLOW SHIFTS TOWARDS NORTHWEST FLOW AS HUDSON
BAY LOW RETROGRADES SOME...PUSHING LOWER HEIGHTS DOWN OVER THE MID
PLAINS.  SHARP RIDGE OVER WEST COAST/BC SUPPOSED TO SHIFT EAST IN
RESPONSE...AND FLATTEN SOME.  MONDAY/S PROG LOOKS ACTIVE DESPITE
SURFACE HIGH PRESSURE OVER AREA...AS FRONT MAY HANG UP OVER
NEBRASKA.  A VORT MAX CENTERED OVER EASTERN SOUTH DAKOTA EXTENDS TO
NEAR DENVER BY 00Z TUESDAY...WHICH COULD SERVE AS A TRIGGER. MAIN
AREA OF CONCERN FOR ANYTHING POTENTIALLY SEVERE WOULD BE NORTHERN
ZONES MONDAY THROUGH WEDNESDAY AS LARGE UPPER LOW OVER CANADA
CONTINUES TO SPIN OFF PIECES OF ENERGY OVER THE STATES.  WEAKER
IMPULSES AND LOBES OF VORTICITY LOOK LESS ORGANIZED AT THIS TIME AND
DIFFICULT TO NAIL DOWN.  TUESDAY MAY BE THE DRY DAY WHILE SLIGHT
CHANCE EXISTS FOR WEDNESDAY AGAIN.

.LBF...NONE.

SLM

In the hours before

Local storm report, Jun 23, 9:07 PM CDT, 2 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
907 PM CDT FRI JUN 23 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0745 PM    26 S RUSHVILLE            NE   .75 INCH HAIL
06/23/00   SHERIDAN

0810 PM    5 NNE ELLSWORTH           NE   1.50 INCH HAIL
06/23/00   SHERIDAN

DAW

Local storm report, Jun 23, 9:27 PM CDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
927 PM CDT FRI JUN 23 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0457 PM    12 SSE STOCKVILLE         NE   .75 INCH HAIL
06/23/00   FRONTIER

0457 PM    12 SSE  STOCKVILLE        NE   WIND DAMAGE
06/23/00   FRONTIER                       NUMEROUS LARGE TREE LIMBS
                                          DOWN

WERT

Special weather statement, Jun 23, 9:28 PM CDT, 1 hour 45 minutes before

NEZ004-022-056-240245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
928 PM CDT FRI JUN 23 2000

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE EASTERN
PORTION OF THE NEBRASKA PANHANDLE...

SEVERE THUNDERSTORMS HAVE MOVED EASTWARD INTO CENTRAL NEBRASKA SO THE
NATIONAL WEATHER SERVICE HAS CANCELLED THE SEVERE THUNDERSTORM
WATCH FOR THE EASTERN PORTION OF THE PANHANDLE.  A FEW WEAK
THUNDERSTORMS ARE STILL POSSIBLE ACROSS THE PANHANDLE BUT THESE ARE
EXPECTED TO REMAIN BELOW SEVERE CRITERIA.

DDB

Local storm report, Jun 23, 9:50 PM CDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
950 PM CDT FRI JUN 23 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 PM    10 NW ARTHUR              NE   1.00 INCH HAIL
06/23/00   ARTHUR

WERT

Local storm report, Jun 23, 10:48 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE, NE
1048 PM CDT FRI JUN 23 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0900 PM    52 SW VALENTINE           NE   .75 INCH HAIL
06/23/00   CHERRY

0945 PM    20 WSW BROWNLEE           NE   .75 INCH HAIL
06/23/00   CHERRY

WERT

Special weather statement, Jun 23, 11:02 PM CDT, 11 minutes before

NEZ023-024-035-036-057-058-240430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1102 PM CDT FRI JUN 23 2000

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
WESTERN NEBRASKA...

THE LINE OF THUNDERSTORMS THAT PRODUCED SEVERE WEATHER EARLIER
THIS EVENING HAS MOVED EASTWARD.  THEREFORE THE NATIONAL
WEATHER SERVICE HAS CANCELLED THE SEVERE THUNDERSTORM WATCH FOR
GRANT...HOOKER...ARTHUR...MCPHERSON../.KEITH...AND PERKINS
COUNTIES IN WESTERN NEBRASKA.

DDB

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 7:39 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	66 min
Jun 23, 8:15 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	60 min
Jun 23, 8:39 PM CDT	Severe Thunderstorm Warning	LBF	Arthur	51 min
Jun 23, 9:14 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	46 min
Jun 24, 12:25 AM CDT	Severe Thunderstorm Warning	LBF	Garfield, Wheeler	65 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.