Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 252, NWS North Platte, NE

August 19, 1998Boyd County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 19, 1998, 6:27 PM CDT for Boyd County, Nebraska. It was in force for 48 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: Aug 19, 1998, 6:27 PM CDT (23:27 UTC)
Expired: Aug 19, 1998, 7:15 PM CDT
In force: 48 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Boyd County, NE

The radar

The North Platte radar (KLNX), 182 km from the middle of the area, began a volume at 23:27 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
Aug 19, 6:47 PM CDT	Hail 0.75	Lynch, 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

Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 224 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: 323 J/kg
Mixed-layer CIN: -312 J/kg
Mixed-layer LCL: 1668 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 96 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 192327 RRA
SVRLBF
NEC015-200015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
627 PM CDT WED AUG 19 1998

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BOYD COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 715 PM CDT

* AT 625 PM CDT... NORTH PLATTE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 25 MILES NORTH OF O NEILL OR 2 MILES SOUTHWEST OF
  BRISTOW MOVING NORTHEAST AT 15 MPH.

* DAMAGING HAIL AND/OR DESTRUCTIVE WINDS CAN BE EXPECTED NEAR...
  LYNCH                        BY 650 PM CDT
  GROSS                        BY 655 PM CDT
  MONOWI                       BY 705 PM CDT

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

MICHELS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 3:02 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	48 min
Aug 19, 4:09 PM CDT	Severe Thunderstorm Warning	LBF	Brown	51 min
Aug 19, 4:21 PM CDT	Severe Thunderstorm Warning	LBF	Brown	49 min
Aug 19, 4:27 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	48 min
Aug 19, 4:44 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Hayes	46 min
Aug 19, 4:50 PM CDT	Severe Thunderstorm Warning	LBF	Rock	45 min
Aug 19, 5:10 PM CDT	Severe Thunderstorm Warning	LBF	Brown	50 min
Aug 19, 5:20 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Keya Paha	60 min
Aug 19, 5:29 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	66 min
Aug 19, 5:39 PM CDT	Severe Thunderstorm Warning	LBF	Rock	61 min
Aug 19, 5:48 PM CDT	Severe Thunderstorm Warning	LBF	Holt	62 min
Aug 19, 6:08 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	62 min
Aug 19, 6:24 PM CDT	Severe Thunderstorm Warning	LBF	Rock	66 min
Aug 19, 6:30 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Logan	65 min
Aug 19, 6:52 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	63 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.