Alert archive / Nebraska / Tornado Warnings in 2000

Tornado Warning 20, NWS Omaha, NE

June 13, 2000Cass County, Nebraska; Mills County, Iowa

NWS Omaha, NE issued this tornado warning at Jun 13, 2000, 3:17 PM CDT for Cass County, Nebraska; Mills County, Iowa. 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: Jun 13, 2000, 3:17 PM CDT (20:17 UTC)
Expired: Jun 13, 2000, 3:45 PM CDT
In force: 28 min
Issued by: NWS Omaha, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Mills County, IA, Cass County, NE

The radar

The Omaha radar (KOAX), 56 km from the middle of the area, began a volume at 20:19 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 13, 2:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 8.3 hours before the alert went out and 56 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: 997 J/kg
Mixed-layer CIN: -254 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 83 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 
WFUS53 KOAX 132017
TOROMA
IAC129-NEC025-132045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
317 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CASS COUNTY IN SOUTHEAST NEBRASKA
  MILLS COUNTY IN SOUTHWEST IOWA

* UNTIL 345 PM CDT

* AT 314 PM CDT...RADAR INDICATED A THUNDERSTORM WITH VERY STRONG
  ROTATION AND A DEVELOPING TORNADO 4 MILES SOUTH OF MURRAY...OR
  ABOUT 28 MILES SOUTH OF OMAHA...MOVING NORTHEAST AT 35 MPH.

SOME LOCATIONS IN THE PATH OF THE TORNADO THROUGH 345 PM CDT
  INCLUDE...PACIFIC JUNCTION...GLENWOOD...MALVERN...HASTINGS...SILVER
  CITY...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT TUESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.

LAT...LON 4102 9614 4079 9609 4093 9542 4117 9555

FOBERT

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 11:38 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox	37 min
Jun 13, 12:39 AM CDT	Severe Thunderstorm Warning	OAX	Platte	36 min
Jun 13, 2:23 AM CDT	Severe Thunderstorm Warning	OAX	Saunders	37 min
Jun 13, 1:24 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Sarpy, Saunders	51 min
Jun 13, 1:24 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster	51 min
Jun 13, 2:02 PM CDT	Tornado Warning	OAX	Douglas, Sarpy	43 min
Jun 13, 2:13 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe, Saunders	32 min
Jun 13, 2:28 PM CDT	Severe Thunderstorm Warning	OAX	Washington	62 min
Jun 13, 2:42 PM CDT	Tornado Warning	OAX	Cass, Sarpy	33 min
Jun 13, 2:45 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	45 min
Jun 13, 2:58 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson	32 min
Jun 13, 3:03 PM CDT	Tornado Warning	OAX	Otoe	27 min
Jun 13, 3:09 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Saline, Seward	36 min
Jun 13, 3:30 PM CDT	Tornado Warning	OAX	Otoe	45 min
Jun 13, 3:36 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Pawnee	39 min
Jun 13, 3:43 PM CDT	Tornado Warning	OAX	Cass	47 min
Jun 13, 3:58 PM CDT	Tornado Warning	OAX	Dodge, Saunders	32 min
Jun 13, 3:58 PM CDT	Tornado Warning	OAX	Sarpy	32 min
Jun 13, 4:18 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Pawnee, Richardson	42 min
Jun 13, 4:29 PM CDT	Tornado Warning	OAX	Cass, Sarpy	31 min
Jun 13, 4:55 PM CDT	Tornado Warning	OAX	Burt, Washington	35 min
Jun 13, 5:00 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Pawnee	60 min
Jun 13, 5:00 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	60 min
Jun 13, 5:55 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Lancaster	35 min
Jun 13, 6:32 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	43 min
Jun 13, 3:20 PM CDT	Tornado Warning	OAX	Harrison, Shelby	40 min
Jun 13, 3:45 PM CDT	Tornado Warning	OAX	Mills	30 min
Jun 13, 4:11 PM CDT	Tornado Warning	OAX	Mills, Montgomery, Pottawattamie	34 min
Jun 13, 4:11 PM CDT	Tornado Warning	OAX	Fremont, Page	34 min
Jun 13, 4:37 PM CDT	Tornado Warning	OAX	Montgomery	23 min
Jun 13, 4:44 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	46 min
Jun 13, 5:08 PM CDT	Tornado Warning	OAX	Montgomery	37 min
Jun 13, 5:21 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	54 min
Jun 13, 5:33 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	57 min
Jun 13, 5:52 PM CDT	Flash Flood Warning	OAX	Mills	4 hr
Jun 13, 6:18 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	57 min

Nearby

Tornado Warnings in Nebraska, 2000 Tornado Warnings in Iowa, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.