Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 122, NWS North Platte, NE

June 13, 1998Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 13, 1998, 4:22 PM MDT for Sheridan County, Nebraska. It was in force for 63 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 13, 1998, 4:22 PM MDT (22:22 UTC)
Expired: Jun 13, 1998, 5:25 PM MDT
In force: 63 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Sheridan County, NE

The radar

The North Platte radar (KLNX), 163 km from the middle of the area, began a volume at 22:25 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.

What was reported inside it

Time	Report	Where	Remark
Jun 13, 4:30 PM MDT	Hail 0.75	Lakeside, NE

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 13, 2:30 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.4 hours before the alert went out and 178 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: 117 J/kg
Mixed-layer CIN: -221 J/kg
Mixed-layer LCL: 2129 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 115 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.

000 
TTAA00 KLBF 132235 RRA
SVRLBF
NEC161-132325-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
522 PM CDT (422 PM MDT) SAT JUN 13 1998

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN SHERIDAN COUNTY IN THE NEBRASKA PANHANDLE

* UNTIL 525 PM MDT (625 PM CDT)

* AT 421 PM MDT... NORTH PLATTE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 15 MILES EAST OF ALLIANCE MOVING NORTHEAST AT 15 MPH.

* THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS.

A TORNADO WATCH IS IN EFFFECT! GO INSIDE A STURDY BUILDING AND
STAY AWAY FROM WINDOWS! SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

THIS IS A CORRECTION TO THE WARNING THAT WAS ISSUED FOR SOUTHERN GARDEN
COUNTY.  NO SEVERE THUNDERSTORMS WERE OCCURRING IN GARDEN COUNTY.  THE
WARNING SHOULD HAVE BEEN ISSUED FOR SOUTHERN SHERIDAN COUNTY FOR THE
SAME VALID TIMES.

WERT

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 13, 12:55 PM MDT, 3 hours 27 minutes earlier.

Area forecast discussion, Jun 13, 12:55 PM MDT, 3 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
154 PM CDT (1254 PM MDT) SAT JUN 13 1998

...MAIN PROBLEM IS THIS AFTERNOON AND TONIGHT...STORMS AND THE
SEVERITY THEREOF...

NICE UPPER SYSTEM MOVING EAST TOWARD THE CWA AT THIS TIME AS SFC
LOW SPINS UP IN NORTHEAST CO.  JET PUNCHING IN OVER SOUTHERN
PORTIONS OF CWA WITH COLD POOL PROGGED (BY EXTRAPOLATION...NOT BY
MODEL) TO PASS OVER NORTHERN SECTIONS OF CWA.  BEST PRESSURE FALLS
INDICATE THAT LOW WILL TRACK EAST ACROSS SOUTHERN NEBRASKA...
LIKELY PULLING WARM FRONT NORTH TOWARD SOUTHERN NEBRASKA AS WELL.
LIKE THE SPC OUTLOOK FOR MODERATE...MAY HAVE MOVED IT A BIT
FARTHER NORTH AND WEST...BUT NOT MUCH.  CAP STILL FORMIDABLE...BUT
EXPECT IT TO BREAK WITH STRENGTH OF SYSTEM.

CONVERGENT AXIS EXTENDING FROM SOUTHEAST PANH OF NEBRASKA DOWN
INTO NORTHWEST KANSAS...AND EXPECT INITIAL THUNDERSTORM
DEVELOPMENT ALONG THAT AXIS AROUND 4 TO 5 PM.  THINK STORMS WILL
RAPIDLY BECOME SEVERE WITH WIND FIELD AND CAPE TO SUPPORT ISOLATED
TORNADOES ALONG AND NEAR THE WARM FRONT...ESPECIALLY.  WILL NEED
TO WATCH NORTH OF THE WARM FRONT AS WELL...SEEING THAT BOUNDARY
LAYER IS NOT WHAT ONE WOULD CALL STABLE.  STILL...HIGHEST THREAT
CLOSER TO WARM FRONT.

TONIGHT EXPECT NUMEROUS THUNDERSTORMS...WILL GO WITH CATEGORICAL
FOR ALL BUT PANHANDLE COUNTIES.  WOULD LIKE WORDING OF SEVERE IN
FOR ALL AREAS.  AS LOW PULLS EAST...WINDS SHOULD REMAIN HIGH AND
SWITCH TO NORTHWEST...CONTINUING THAT WAY INTO SUNDAY.

MODELS DIFFER ON DETAILS FOR THIS AFTERNOON AND EVENING...AND I AM
DEVOTING MOST OF MY TIME TO MESOANALYSIS OF THE SHORT-TERM SEVERE
THREAT...SO WILL HAVE LITTLE INPUT TO 2ND THROUGH 4TH PERIODS.
BEST GUESSES AT NUMBERS BELOW...BUT I HAVE PUT LITTLE TIME IN
ANALYZING LATER PERIODS.

PRELIMINARY GUIDANCE FOR COORDINATION ONLY.  OFFICIAL FORECASTS
CONTAINED WITHIN PRODUCT OMAZFPNE.

LBF EE 50/70/45/70/45 +44
VTN EE 45/68/43/69/45 +55

SPARKER

In the hours before

Local storm report, Jun 13, 3:25 PM MDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
425 PM CDT SAT JUN 13 1998

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

0422 PM    4 ESE WHITECLAY           NE   0.75 INCH HAIL
06/13/98   SHERIDAN

WERT

Local storm report, Jun 13, 3:25 PM MDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
425 PM CDT SAT JUN 13 1998

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

0422 PM    4 ESE WHITECLAY           NE   0.75 INCH HAIL
06/13/98   SHERIDAN

WERT

Local storm report, Jun 13, 3:54 PM MDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
454 PM CDT SAT JUN 13 1998

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

0445 PM    7 NNW WALLACE             NE   1.00 INCH HAIL
06/13/98   LINCOLN

ROBERG

Local storm report, Jun 13, 3:54 PM MDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
454 PM CDT SAT JUN 13 1998

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

0445 PM    7 NNW WALLACE             NE   1.00 INCH HAIL
06/13/98   LINCOLN

ROBERG

Local storm report, Jun 13, 4:10 PM MDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
510 PM CDT SAT JUN 13 1998

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

0427 PM    11 NW BRULE               NE   1.00 INCH HAIL
06/13/98   KEITH

0430 PM    4 N BIG SPRINGS           NE   1.00 INCH HAIL
06/13/98   DEUEL

WERT

Local storm report, Jun 13, 4:10 PM MDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
510 PM CDT SAT JUN 13 1998

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

0427 PM    11 NW BRULE               NE   1.00 INCH HAIL
06/13/98   KEITH

0430 PM    4 N BIG SPRINGS           NE   1.00 INCH HAIL
06/13/98   DEUEL

WERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 3:07 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	63 min
Jun 13, 3:19 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Keith	61 min
Jun 13, 3:27 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	63 min
Jun 13, 3:34 PM MDT	Severe Thunderstorm Warning	LBF	Garden	66 min
Jun 13, 3:38 PM MDT	Severe Thunderstorm Warning	LBF	Perkins	32 min
Jun 13, 3:44 PM MDT	Severe Thunderstorm Warning	LBF	Garden	61 min
Jun 13, 4:18 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	62 min
Jun 13, 4:26 PM MDT	Tornado Warning	LBF	Lincoln	64 min
Jun 13, 4:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	66 min
Jun 13, 5:09 PM MDT	Tornado Warning	LBF	Custer	61 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1998 Every severe thunderstorm warning in 1998

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; radar from the NEXRAD Level II archive.