Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 14, NWS North Platte, NE

July 1, 2001Cherry County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 1, 2001, 4:47 AM MDT for Cherry County, Nebraska. It was in force for 28 min. No storm report in the archive falls 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.

The facts

Issued: Jul 1, 2001, 4:47 AM MDT (10:47 UTC)
Expired: Jul 1, 2001, 5:15 AM MDT
In force: 28 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Cherry County, NE

The radar

The North Platte radar (KLNX), 77 km from the middle of the area, began a volume at 10:51 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 10.8 hours before the alert went out and 169 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: 2104 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1718 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 374 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 22.2

Open this sounding in Storm Lab

The text

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

250 
WFUS53 KLBF 011047
TORLBF
NEC031-011115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
547 AM CDT SUN JUL 1 2001

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 615 AM CDT

* AT 545 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO OVER NORTHEASTERN CHERRY
  COUNTY...OR ABOUT 9 MILES SOUTH OF VALENTINE...MOVING SOUTHEAST AT
  15 MPH.

* THE TORNADO IS EXPECTED TO BE...
  OVER FARM AND RANGELANDS OF EAST CENTRAL CHERRY COUNTY

THIS REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED PREVIOUSLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4284 10062 4275 10082 4235 10049 4248 10023

$$
SLM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 2:26 AM MDT	Severe Thunderstorm Warning	LBF	Holt	64 min
Jul 1, 4:36 AM MDT	Severe Thunderstorm Warning	LBF	Cherry	54 min
Jul 1, 11:29 AM MDT	Severe Thunderstorm Warning	LBF	Brown	31 min
Jul 1, 11:46 AM MDT	Severe Thunderstorm Warning	LBF	Rock	59 min
Jul 1, 5:57 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	63 min

Nearby

Tornado Warnings in Nebraska, 2001 Every tornado warning in 2001 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.