Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 137, NWS North Platte, NE

June 17, 1998Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 17, 1998, 12:01 AM MDT for Grant County, Nebraska. It was in force for 34 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 17, 1998, 12:01 AM MDT (06:01 UTC)
Expired: Jun 17, 1998, 12:35 AM MDT
In force: 34 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Grant County, NE

The radar

The North Platte radar (KLNX), 96 km from the middle of the area, began a volume at 06:00 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 17, 12:15 AM MDT	Hail 1	Whitman, 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 nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 6.0 hours before the alert went out and 257 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: 2088 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 300 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.

954 
WUUS1 KLBF 170559 RRA
SVRLBF
NEC075-170635-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
101 AM CDT (1201 AM MDT) WED JUN 17 1998

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GRANT COUNTY IN WEST CENTRAL NEBRASKA

* UNTIL 1235 AM MDT (135 AM CDT)

* AT 1159 PM MDT... NORTH PLATTE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 20 MILES WEST SOUTHWEST OF MULLEN OR 8 MILES SOUTH
  SOUTHEAST OF WHITMAN MOVING NORTH NORTHEAST AT 40 MPH.

* DAMAGING HAIL AND/OR DESTRUCTIVE WINDS CAN BE EXPECTED IN
  RURAL AREAS NEAR WHITMAN...

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

KR

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 16, 1:40 PM MDT, 10 hours 21 minutes earlier.

Area forecast discussion, Jun 16, 1:40 PM MDT, 10 hours 21 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
240 PM CDT TUE JUN 16 1998

...FORECAST PROBLEMS TONIGHT WILL BE THUNDERSTORM CHANCES FOLLOWED BY
PROGRESSION OF SURFACE SYSTEM ACROSS CWFA...

COMPLEX SURFACE LOW ALONG THE FRONT RANGE OF WY AND CO BACK INTO
SOUTHERN UT AT 18Z WITH SIGNIFICANT MODEL DIFFERENCES IN LOW POSITION
BY 00Z WITH ETA/AVN SOLUTION PREFERED.  IN THE SHORT TERM NGM BRINGS
DECENT SHORT WAVE IN AREA BY 00Z BUT THIS IS NOT SUPPORTED BY ETA/AVN
AND SEE NOTHING ON WV SATL TO INDICATE THAT IT IS THERE.

TONIGHT SURFACE LOW CONTINUES TO DEVELOP OVER THE HIGH PLAINS AS LOW
LEVEL JET INCREASES OVER THE CWFA.  SURFACE INITIALLY DRY ALTHO MID 50S
DEWPOINTS HAVE MOVED INTO SOUTHWEST KS AND SHOULD REACH SOUTHWEST NE
THIS EVENING.  WOULD EXPECT INITIAL CONVECTION NEAR BOUNDARY ALONG
NE/WY BORDER PROGRESSING EAST WITH TIME. AT 19Z BOTH KLNX AND KCYS WITH
WEAK RETURNS...PROBABLY MID LEVEL CLDNS WITH NOTHING MORE THAN SPRINKLS
AS LARGE MID/HIGH LEVEL CLOUD SHIELD SPREADS IN FROM THE WEST.

MODELS BECOME EVEN MORE DIVERGENT WITH THE POSITION OF THE SURFACE
FRONT/TROF IN THE 24 TO 36 HR TIME FRAME.  THE NEW ETA THE MOST
PROGRESSIVE WITH LOW EAST OF HSI WHILE NEG PLACES IT NORTH OF VTN. WILL
ACCEPT THE AVN COMPROMISE WHICH WOULD PUT THE FRONT/TROF FROM NEAR VTN
TO NEAR EAR BY 18/00Z WITH SOME CHANCE OF STRONG TO SEVERE STORMS OVER
THE EASTERN PART OF CWFA.  BY LATE THUR FRONT WILL BE EAST OF CWFA.

NGM ONLY GRIDDED DATA AVAILABLE.  NOT MUCH DIFFERENCE IN MOS NUMBERS
AND GENERALLY ACCEPTED.

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

CCF
LBF EE 058/077 057/078 054 5343  ANW EE 062/079 060/078 054 4353
OGA EE 083/056 074/054 079 5343  ONL EE 061/080 060/079 055 4353
IML EE 059/076 056/075 055 5343  BBW EE 060/080 059/079 055 4353
VTN EE 059/075 056/071 052 5353

BOWMAN

In the hours before

Local storm report, Jun 16, 9:04 PM MDT, 2 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1004 PM CDT TUE JUN 16 1998

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

0855 PM    21 SSW MULLEN             NE   1.75 INCH HAIL
06/16/98   HOOKER

ROBERG

Local storm report, Jun 16, 9:04 PM MDT, 2 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1004 PM CDT TUE JUN 16 1998

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

0855 PM    21 SSW MULLEN             NE   1.75 INCH HAIL
06/16/98   HOOKER

ROBERG

Local storm report, Jun 16, 9:06 PM MDT, 2 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1006 PM CDT TUE JUN 16 1998

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

0905 PM    19 NW TRYON               NE   1.00 INCH HAIL
06/16/98   MCPHERSON

ROBERG

Local storm report, Jun 16, 9:06 PM MDT, 2 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1006 PM CDT TUE JUN 16 1998

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

0905 PM    19 NW TRYON               NE   1.00 INCH HAIL
06/16/98   MCPHERSON

ROBERG

Local storm report, Jun 16, 9:16 PM MDT, 2 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1016 PM CDT TUE JUN 16 1998

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

0850 PM    16 SSE WHITMAN            NE   0.75 INCH HAIL
06/16/98   GRANT

ROBERG

Local storm report, Jun 16, 9:16 PM MDT, 2 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  NORTH PLATTE NE
1016 PM CDT TUE JUN 16 1998

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

0850 PM    16 SSE WHITMAN            NE   0.75 INCH HAIL
06/16/98   GRANT

ROBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:37 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	48 min
Jun 16, 7:52 PM MDT	Severe Thunderstorm Warning	LBF	Hooker	63 min
Jun 16, 8:10 PM MDT	Severe Thunderstorm Warning	LBF	McPherson	65 min
Jun 16, 8:56 PM MDT	Severe Thunderstorm Warning	LBF	Thomas	64 min
Jun 16, 10:01 PM MDT	Severe Thunderstorm Warning	LBF	Garden	49 min
Jun 16, 10:07 PM MDT	Severe Thunderstorm Warning	LBF	Blaine	63 min
Jun 16, 10:32 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	63 min
Jun 16, 10:51 PM MDT	Severe Thunderstorm Warning	LBF	Keith	49 min
Jun 16, 11:02 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	63 min
Jun 16, 11:21 PM MDT	Severe Thunderstorm Warning	LBF	Loup	64 min
Jun 16, 11:47 PM MDT	Severe Thunderstorm Warning	LBF	Hooker	63 min
Jun 17, 12:09 AM MDT	Severe Thunderstorm Warning	LBF	Garfield	61 min
Jun 17, 12:51 AM MDT	Severe Thunderstorm Warning	LBF	Wheeler	64 min
Jun 17, 5:56 PM MDT	Severe Thunderstorm Warning	LBF	Wheeler	64 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.