Alert archive / Nebraska / Tornado Warnings in 2000

Tornado Warning 6, NWS Omaha, NE

May 17, 2000Colfax County, Platte County, Stanton County, Nebraska

NWS Omaha, NE issued this tornado warning at May 17, 2000, 5:45 PM CDT for Colfax County, Platte County, Stanton County, Nebraska. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 17, 2000, 5:45 PM CDT (22:45 UTC)
Expired
May 17, 2000, 6:15 PM CDT
In force
30 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Colfax County, NE, Platte County, NE, Stanton County, NE

The radar

The Omaha radar (KOAX), 85 km from the middle of the area, began a volume at 22:49 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.

IssuedProductOfficeLasted
May 17, 4:15 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.8 hours before the alert went out and 85 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2000-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1753 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2000-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1753 J/kg
Mixed-layer CIN
-269 J/kg
Mixed-layer LCL
902 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

986 
WFUS53 KOAX 172247
TOROMA
NEC037-141-167-172315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
545 PM CDT WED MAY 17 2000

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWEST COLFAX COUNTY IN NORTHEAST NEBRASKA
  NORTHEASTERN PLATTE COUNTY IN NORTHEAST NEBRASKA
  STANTON COUNTY IN NORTHEAST NEBRASKA

* UNTIL 615 PM CDT

* AT 544 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR 
  CRESTON   NORTHWEST OF LEIGH...OR ABOUT 20 MILES NORTH OF 
  COLUMBUS...MOVING   NORTHEAST AT 30 MPH.

* SOME LOCATIONS IN THE PATH OF THE TORNADO THROUGH 615 PM CDT
  INCLUDE...
  CLARKSON...OTHERWISE MAINLY RURAL AREAS.
  
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 HAS BEEN CONFIRMED BY WEATHER SPOTTERS. TAKE COVER NOW IN A
BASEMENT OR ON THE LOWEST LEVEL OF A STRONG BUILDING. CARS AND MOBILE
HOMES SHOULD BE ABANDONED. GO TO A SAFE PLACE NOW.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.


BYRD

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 3:26 PM CDTSevere Thunderstorm WarningOAXBoone, Platte64 min
May 17, 4:11 PM CDTSevere Thunderstorm WarningOAXAntelope, Madison, Pierce34 min
May 17, 4:31 PM CDTSevere Thunderstorm WarningOAXPlatte29 min
May 17, 5:15 PM CDTTornado WarningOAXMadison, Platte, Stanton30 min
May 17, 6:15 PM CDTTornado WarningOAXCuming, Stanton, Wayne45 min
May 17, 6:58 PM CDTSevere Thunderstorm WarningOAXWayne47 min

Nearby

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