Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 7, NWS Denver/Boulder, CO

May 8, 1996Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 8, 1996, 11:10 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 50 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: May 8, 1996, 11:10 PM MDT (05:10 UTC)
Expired: May 9, 1996, 12:00 AM MDT
In force: 50 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 162 km from the middle of the area, began a volume at 05:13 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
May 8, 11:35 PM MDT	Hail 1	Julesburg, 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, 5.2 hours before the alert went out and 121 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: 1808 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 2066 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 090513
SVRDEN
COC095-115-090600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
1110 PM MDT WED MAY 08 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 1200 AM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN NORTHEASTERN COLORADO
     NORTHERN PHILLIPS AND SEDGWICK

INCLUDING THE FOLLOWING LOCATIONS
     AMHERST...FAIRFIELD...MARKS BUTTE...OVID...PAOLI AND
     SIXTEEN-MILE CORNER

AT 1110 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 8 MILES NORTHEAST OF HAXTUN MOVING EAST
NORTHEAST AT 20 MPH.

THE PUBLIC REPORTED WIND GUSTS TO 58 MPH 4 MILES EAST OF HAXTUN AT 1108
PM.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY
SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING
HAIL...DAMAGING WINDS OVER 60 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.

A TORNADO WATCH REMAINS IN EFFECT FOR NORTHEASTERN COLORADO
UNTIL 300AM MDT.  SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  PREPARE TO MOVE TO A PLACE
OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM IF A TORNADO IS SPOTTED.


LAT...LON 4062 10215 4061 10249 4097 10250X 4096 10207

KLEYLA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:15 PM MDT	Severe Thunderstorm Warning	BOU	Logan	45 min
May 8, 8:03 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	42 min
May 8, 8:55 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan, Weld	50 min
May 8, 10:15 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Washington	45 min
May 9, 2:15 AM MDT	Severe Thunderstorm Warning	BOU	Logan	45 min
May 9, 2:20 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	25 min
May 9, 2:50 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	25 min
May 9, 3:16 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	14 min
May 9, 3:36 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	24 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.