Alert archive / Colorado / Tornado Warnings in 1996

Tornado Warning 49, NWS Goodland, KS

August 4, 1996Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Aug 4, 1996, 8:39 PM MDT for Yuma County, Colorado. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 4, 1996, 8:39 PM MDT (02:39 UTC)
Expired
Aug 4, 1996, 9:15 PM MDT
In force
36 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 02:31 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

TimeReportWhereRemark
Aug 4, 9:25 PM MDTHail 0.75Joes, CO

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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.7 hours before the alert went out and 70 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, Denver, CO at 00:00Z on 1996-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1224 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1996-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
1224 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
2383 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGLD 050236
TORGLD
COC125-050315-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
839 PM MDT SUN AUG 4 1996

THE NATIONAL WEATHER SERVICE IN GOODLAND KS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 915 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST COLORADO

   ...NORTHEASTERN YUMA COUNTY
 
AT 838 PM MDT...A POSSIBLE TORNADO WAS INDICATED BY GOODLAND DOPPLER
RADAR 11 MILES NORTHEAST OF WRAY OR 10 MILES NORTH OF LAIRD MOVING
EAST AT 20 MPH. THE TORNADO IS CURRENTLY EXPECTED TO REMAIN OVER
RURAL AREAS.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

VJN

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 7:36 PM MDTSevere Thunderstorm WarningGLDYuma64 min
Aug 4, 7:52 PM MDTTornado WarningGLDYuma48 min
Aug 4, 7:56 PM MDTTornado WarningGLDYuma49 min
Aug 4, 9:09 PM MDTSevere Thunderstorm WarningGLDYuma61 min
Aug 4, 9:43 PM MDTTornado WarningGLDYuma47 min

Nearby

Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996

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.