Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 182, NWS North Platte, NE

July 16, 2001Holt County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 16, 2001, 7:45 PM CDT for Holt County, Nebraska. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jul 16, 2001, 7:45 PM CDT (00:45 UTC)
Expired: Jul 16, 2001, 8:15 PM CDT
In force: 30 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Holt County, NE

The radar

The North Platte radar (KLNX), 178 km from the middle of the area, began a volume at 00:46 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
Jul 16, 8:00 PM CDT	Hail 0.88	Ewing, 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
Jul 16, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.8 hours before the alert went out and 204 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: 2587 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1316 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 14.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 170046
SVRLBF

NEC089-170115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
745 PM CDT MON JUL 16 2001

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HOLT COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 815 PM CDT

* AT 736 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES WEST OF EWING...OR ABOUT 15 MILES
  SOUTHEAST OF O'NEILL...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  8 MILES SOUTH OF PAGE AROUND 805 PM CDT
  3 MILES NORTH OF EWING AROUND 810 PM 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.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
WINDS.

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

LAT...LON 4234 9859 4214 9853 4216 9831 4244 9831

$$
CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 9:16 PM CDT	Severe Thunderstorm Warning	LBF	Wheeler	29 min
Jul 17, 1:05 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	40 min
Jul 17, 1:28 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha	62 min
Jul 17, 5:09 PM CDT	Severe Thunderstorm Warning	LBF	Rock	66 min
Jul 17, 5:51 PM CDT	Tornado Warning	LBF	Rock	24 min
Jul 17, 6:08 PM CDT	Tornado Warning	LBF	Loup	52 min
Jul 17, 6:16 PM CDT	Severe Thunderstorm Warning	LBF	Rock	29 min
Jul 17, 6:34 PM CDT	Severe Thunderstorm Warning	LBF	Holt	56 min
Jul 17, 6:56 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	64 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2001 Every severe thunderstorm warning in 2001

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.