Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 41, NWS Omaha, NE

June 10, 2001Antelope County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 10, 2001, 1:18 AM CDT for Antelope County, Nebraska. It was in force for 27 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: Jun 10, 2001, 1:18 AM CDT (06:18 UTC)
Expired: Jun 10, 2001, 1:45 AM CDT
In force: 27 min
Issued by: NWS Omaha, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Antelope County, NE

The radar

The Omaha radar (KOAX), 166 km from the middle of the area, began a volume at 06:18 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 10, 1:28 AM CDT	Hail 0.75	Neligh, 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
Jun 9, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.3 hours before the alert went out and 166 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: 250 J/kg
Mixed-layer CIN: -209 J/kg
Mixed-layer LCL: 1945 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KOAX 100620
TOROMA
NEC003-100645-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
118 AM CDT SUN JUN 10 2001

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  ANTELOPE COUNTY IN NORTHEAST NEBRASKA

* UNTIL 145 AM CDT

* AT 116 AM CDT...RADAR INDICATED A POSSIBLE TORNADO AND LAW 
ENFORCEMENT OFFICIALS REPORTED A FUNNEL CLOUD 3 MILES NORTHWEST OF 
NELIGH...OR ABOUT 34 MILES WEST OF NORFOLK...  MOVING SOUTHEAST AT 
30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
RURAL SOUTHEASTERN ANTELOPE COUNTY AROUND 125 AM CDT

* SOME LOCATIONS AFFECTED...
NELIGH
RURAL SOUTHEASTERN ANTELOPE COUNTY

THIS REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY ISSUED FOR
THE WARNED AREA.

A SEVERE THUNDERSTORM WARNING CONTINUES IN EFFECT UNTIL 145 AM CDT 
FOR PIERCE COUNTY.

IF YOU ARE IN THE PATH OF A TORNADO...GO TO A BASEMENT. IF A BASEMENT
IS NOT AVAILABLE...TAKE COVER IN AN INTERIOR ROOM ON THE LOWEST LEVEL
OF YOUR HOME OR BUSINESS. AVOID WINDOWS.

LAT...LON 4223 9816 4206 9814 4194 9788 4225 9786

WIESE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 11:43 PM CDT	Severe Thunderstorm Warning	OAX	Knox	62 min
Jun 10, 12:26 AM CDT	Severe Thunderstorm Warning	OAX	Antelope	34 min
Jun 10, 12:39 AM CDT	Severe Thunderstorm Warning	OAX	Cedar	36 min
Jun 10, 12:58 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Pierce	47 min
Jun 10, 1:42 AM CDT	Severe Thunderstorm Warning	OAX	Madison, Stanton	48 min
Jun 10, 2:03 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Saunders, Seward	42 min
Jun 10, 2:06 AM CDT	Severe Thunderstorm Warning	OAX	Cuming	24 min
Jun 10, 2:21 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Dodge, Washington	39 min
Jun 10, 2:21 AM CDT	Severe Thunderstorm Warning	OAX	Colfax	39 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.