Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 125, NWS North Platte, NE

June 13, 1998Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 13, 1998, 7:32 PM CDT for Custer County, Nebraska. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 13, 1998, 7:32 PM CDT (00:32 UTC)
Expired: Jun 13, 1998, 8:30 PM CDT
In force: 58 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Custer County, NE

The radar

The North Platte radar (KLNX), 94 km from the middle of the area, began a volume at 00:16 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.

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, 3:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1820 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 204 m²/s²
0-3 km storm-relative helicity: 396 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 1:55 PM CDT, 5 hours 37 minutes earlier.

Area forecast discussion, Jun 13, 1:55 PM CDT, 5 hours 37 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, 6:11 PM CDT, 1 hour 21 minutes before

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

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

0555 PM    MERRIMAN                  NE   1.00 INCH HAIL
06/13/98   CHERRY

WERT

Local storm report, Jun 13, 6:11 PM CDT, 1 hour 21 minutes before

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

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

0555 PM    MERRIMAN                  NE   1.00 INCH HAIL
06/13/98   CHERRY

WERT

Local storm report, Jun 13, 6:45 PM CDT, 47 minutes before

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

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

053N8 PM    23 NNE LISCO              NE   1.50 INCH HAIL
06/13/98   GARDEN

0530 PM    4 W LAKESIDE              NE   0.75 INCH HAIL
06/13/98   SHERIDAN

WERT

Local storm report, Jun 13, 6:45 PM CDT, 47 minutes before

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

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

053N8 PM    23 NNE LISCO              NE   1.50 INCH HAIL
06/13/98   GARDEN

0530 PM    4 W LAKESIDE              NE   0.75 INCH HAIL
06/13/98   SHERIDAN

WERT

Local storm report, Jun 13, 6:53 PM CDT, 39 minutes before

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

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

0650 PM    2 SW CALLAWAY             NE   TORNADO
06/13/98   CUSTER                         SPOTTER REPORT

0650 PM    13 W CALLAWAY             NE   0.75 INCH HAIL
06/13/98   CUSTER

0645 PM    14 W CALLAWAY             NE   0.75 INCH HAIL
06/13/98   CUSTER

WERT

Local storm report, Jun 13, 6:53 PM CDT, 39 minutes before

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

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

0650 PM    2 SW CALLAWAY             NE   TORNADO
06/13/98   CUSTER                         SPOTTER REPORT

0650 PM    13 W CALLAWAY             NE   0.75 INCH HAIL
06/13/98   CUSTER

0645 PM    14 W CALLAWAY             NE   0.75 INCH HAIL
06/13/98   CUSTER

WERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 7:09 PM CDT	Tornado Warning	LBF	Custer	61 min
Jun 13, 7:15 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.