Alert archive / Colorado / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 151, NWS Goodland, KS

July 20, 1995Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jul 20, 1995, 6:21 PM MDT for Yuma County, Colorado. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 20, 1995, 6:21 PM MDT (00:21 UTC)
Expired
Jul 20, 1995, 7:03 PM MDT
In force
42 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 00:20 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 00:00Z, 0.4 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 1995-07-21Temperature 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 00:00Z on 1995-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
2408 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
40 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 KGLD 210022 RRA
SVRGLD
COC125-KSC181-210125-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
621 PM MDT THU JUL 20 1995

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 725 PM MDT (825 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST COLORADO

   ...SOUTHEASTERN YUMA COUNTY

IN NORTHWEST KANSAS

   ...SHERMAN COUNTY
 
AT 619 PM MDT...A SEVERE THUNDERSTORM WAS DETECTED BY GOODLAND
DOPPLER RADAR 21 MILES NORTH OF BURLINGTON OR 1 MILE EAST OF BONNY
RESERVOIR MOVING SOUTHEAST AT 40 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
  HALE                        BY 622 PM MDT
  RULETON                     BY 654 PM MDT
  THE NSI PLANT               BY 658 PM MDT
  GOODLAND                    BY 703 PM MDT
  EDSON                       BY 716 PM MDT

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!

BULLER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 2:04 PM MDT, 4 hours 17 minutes earlier.

Area forecast discussion, Jul 20, 2:04 PM MDT, 4 hours 17 minutes before
AREA FORECAST DISCUSSION...DRAFT
NATIONAL WEATHER SERVICE GOODLAND KS
203 PM MDT (303 PM CDT) THU JUL 20 1995

MN PROBLEM WILL BE IF SHWRS WL DVLP NR SRN BNDRY LEFT BY
THIS MRNGS RAIN AND ALSO PCPN MVG E FRM CO FTHLS.  GUD
THERMAL GRAD NR TRIBUNE-LEOTI AREA AT NOON AND WITH DDC
RAOB RATHER MOIST/UNSTABLE...CONVCTN SEEMS PSBL WITH
ADDTIONAL HTG REACHG PAST CONVCTV TMP OF 79.  CO ZNES ALSO
MISSED OUT ON CLDS/PCPN THIS MRNG AND SHUD HEAT UP ENUF FOR
A FEW TSTMS.  ALSO CONVCTN TO THE W CUD MV INTO AREA THIS EVNG.
MST OF NW KS AND SW NE SHUD BE TOO STBL FOR DEEP CONVCTN.

FOR REST OF FCST...MDLS ABT THE SAME BUT PREFER AVN AS NGM
SEEMS TO HEAT UP LWR LVLS TOO FAST.  WL GO LWR THAN FWC GUID FOR
TEMPS FRI.

GLD  060/090  1-   HLC  062/091  1-
CBK  061/090  1-   MCK  061/090  1-
TRB  060/091  2-   5C0  060/090  2-

HULL

Nearby

Severe Thunderstorm Warnings in Colorado, 1995Every severe thunderstorm warning in 1995

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.