Alert archive / Nebraska / Tornado Warnings in 2000

Tornado Warning 37, NWS Omaha, NE

June 23, 2000Nemaha County, Otoe County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 23, 2000, 5:29 PM CDT for Nemaha County, Otoe County, Nebraska. It was in force for 31 min. 2 reports 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 23, 2000, 5:29 PM CDT (22:29 UTC)
Expired: Jun 23, 2000, 6:00 PM CDT
In force: 31 min
Issued by: NWS Omaha, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Nemaha County, NE, Otoe County, NE

The radar

The Omaha radar (KOAX), 96 km from the middle of the area, began a volume at 22:28 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 23, 5:45 PM CDT	Hail 1	Nebraska City, NE
Jun 23, 5:50 PM CDT	Hail 1.75	Brock, NE	Golfball size hail was accompanied by 70 mph wind from east of Brock to south of Julian. The winds and hail knocked power lines down and did some tree damage. The wind and hail also extensively damaged around 20 thousand acres of corn.

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 23, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.5 hours before the alert went out and 96 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: 2896 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 170 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.

881 
WFUS53 KOAX 232229
TOROMA
NEC127-131-232300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
529 PM CDT FRI JUN 23 2000

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  NEMAHA COUNTY IN SOUTHEAST NEBRASKA
  OTOE COUNTY IN SOUTHEAST NEBRASKA

* UNTIL 600 PM CDT

* AT 522 PM CDT...RADAR INDICATED A THUNDERSTORM WITH STRONG ROTATION
  AND A POSSIBLE TORNADO OVER JULIAN...OR ABOUT 35 MILES NORTHWEST OF
  FALLS CITY...MOVING EAST AT 15 MPH.

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 4061 9598 4042 9606 4045 9566 4060 9577

FOBERT

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 4:09 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	51 min
Jun 23, 4:52 PM CDT	Tornado Warning	OAX	Otoe	23 min
Jun 23, 5:04 PM CDT	Tornado Warning	OAX	Nemaha, Otoe	26 min
Jun 23, 5:55 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	50 min
Jun 23, 5:58 PM CDT	Tornado Warning	OAX	Nemaha	32 min
Jun 23, 6:22 PM CDT	Severe Thunderstorm Warning	OAX	Cass	38 min
Jun 23, 6:27 PM CDT	Severe Thunderstorm Warning	OAX	Sarpy	48 min
Jun 23, 6:33 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha	42 min
Jun 23, 6:40 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	50 min
Jun 23, 6:50 PM CDT	Tornado Warning	OAX	Nemaha	25 min

Nearby

Tornado Warnings in Nebraska, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.