Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 252, NWS Denver/Boulder, CO

August 9, 1996Elbert County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 9, 1996, 5:40 PM MDT for Elbert County, Colorado. It was in force for 40 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
Aug 9, 1996, 5:40 PM MDT (23:40 UTC)
Expired
Aug 9, 1996, 6:20 PM MDT
In force
40 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Elbert County, CO

The radar

The Denver radar (KFTG), 66 km from the middle of the area, began a volume at 23:44 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.7 hours before the alert went out and 101 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 12:00Z on 1996-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 1996-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2019 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
52 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 
TTAA00 KDEN 092341
SVRDEN
COC039-100020-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
540 PM MDT FRI AUG 9 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE 
THUNDERSTORM WARNING EFFECTIVE UNTIL 620 PM MDT FOR PEOPLE IN THE 
FOLLOWING COUNTIES...

IN EAST CENTRAL COLORADO
     NORTHERN ELBERT

AT 532 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM 15 MILES NORTHEAST OF KIOWA...OR ABOUT 36 MILES 
NORTHWEST OF LIMON.

THE STORM WAS MOVING SOUTHEAST AT 25 MILES PER HOUR AND LIKELY 
CONTAINED HAIL OF AT LEAST 1 INCH IN DIAMETER. 

MOVE INDOORS AS THIS STORM APPROACHES YOUR AREA.  STAY AWAY FROM 
WINDOWS. 

BARJENBRUCH

LAT...LON 3925 10380 3923 10425 3956 10442 3956 10414

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 3:53 PM MDTTornado WarningBOUAdams37 min
Aug 9, 4:07 PM MDTTornado WarningBOUArapahoe23 min
Aug 9, 4:11 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld19 min
Aug 9, 4:29 PM MDTSevere Thunderstorm WarningBOUArapahoe31 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.