Alert archive / Colorado / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 95, NWS Goodland, KS

June 29, 1998Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 29, 1998, 1:56 PM MDT for Cheyenne County, Colorado. It was in force for 64 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
Jun 29, 1998, 1:56 PM MDT (19:56 UTC)
Expired
Jun 29, 1998, 3:00 PM MDT
In force
64 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 98 km from the middle of the area, began a volume at 19:59 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, 7.9 hours before the alert went out and 128 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 1998-06-29Temperature 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 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2538 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
41 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.

370 
WUUS1 KGLD 291957 RRA
SVRGLD
COC017-292100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
156 PM MDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CHEYENNE COUNTY COLORADO IN EAST CENTRAL COLORADO

* UNTIL 300 PM MDT

* AT 156 PM MDT... GOODLAND DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 18 MILES WEST OF CHEYENNE WELLS OR 5 MILES EAST OF
  KIT CARSON MOVING SOUTHEAST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  13 MILES SOUTHEAST OF KIT CARSON        AROUND 245 PM MDT

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

EJM/CBE

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 Jun 29, 10:59 AM MDT, 2 hours 57 minutes earlier.

Area forecast discussion, Jun 29, 10:59 AM MDT, 2 hours 57 minutes before
AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE GOODLAND KS
1059 AM MDT (1159 AM CDT) MON JUN 29 1998

SFC LO OVER CENTRAL CWA IN THE KS ZN 28 VCNTY WITH STATIONARY
FRONT EXTENDING NORTHEAST TO JUST EAST OF NE ZN 81. SFC FRONT
EXPECTED TO SAG SLOWLY SWD THIS AFTN AS SFC LO RETROGRADES SSW
TOWARDS LIBERAL KS THIS AFTERNOON WHERE BEST PRESSURE FALLS WILL BE
IN INTENSE SFC HEATING.

AS A RESULT...WINDS OVER ALL CWA SHOULD SHIFT TO THE NE IN RESPONSE
TO CIRCULATION AROUND SFC LO RESULTING IN UPSLOPE FLO BY 00Z TUES.
ADJUSTED WINDS ACCORDINGLY. DID DROP TEMPS A CAT IN NRN CWA ALONG
NEBRASKA BORDER WHERE UP TO 1/2 INCH OF RAIN FELL OVERNIGHT. MCCOOK
SFC OBS DO SHOW A MUCH SLOWER TREND OF WARMING UP.

.GLD...NONE.

MARTELLO

In the hours before

Special weather statement, Jun 29, 10:14 AM MDT, 3 hours 42 minutes before
COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-300600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1014 AM MDT (1114 AM CDT) MON JUN 29 1998

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES

CHEYENNE CO   CHEYENNE KS   DECATUR KS     DUNDY NE        GOVE KS
GRAHAM KS     GREELEY KS    HITCHCOCK NE   KIT CARSON CO   LOGAN KS
NORTON KS     RAWLINS KS    RED WILLOW NE  SHERIDAN KS     SHERMAN KS
THOMAS KS     WALLACE KS    WICHITA KS     YUMA CO

SPOTTER ACTIVATION MAY BE REQUIRED...MAINLY NORTH AND EAST OF A
HAIGLER NEBRASKA/COLBY KANSAS/QUINTER KANSAS LINE WHICH INCLUDES ALL
OF SOUTHWEST NEBRASKA AND NORTHERN PORTIONS OF NORTHWEST KANSAS.

SYNOPSIS: OUTFLOW BOUNDARIES EXIST THIS MORNING FROM THUNDERSTORMS
WHICH OCCURRED OVERNIGHT ALONG THE KANSAS/NEBRASKA BORDER. A SURFACE
LOW EXISTS JUST SOUTHEAST OF GOODLAND KANSAS WITH A STATIONARY FRONT
EXTENDING NORTHEAST OF THE SURFACE LOW TOWARDS MCCOOK NEBRASKA. AS A
MID LEVEL DISTURBANCE RIDES OVER THESE BOUNDARIES THIS EVENING...
WIDELY SCATTERED THUNDERSTORMS WILL BE POSSIBLE...MAINLY ALONG THE
KANSAS/NEBRASKA BORDER WHERE THE BEST CHANCE FOR SEVERE WEATHER WILL
EXIST.

LOW LEVEL MOISTURE CONTINUES TO POOL NORTH AND EAST OF THE SURFACE
LOW THIS MORNING. THIS MOISTURE WILL COMBINE WITH AFTERNOON HIGHS
AROUND THE CENTURY MARK TO CREATE AN UNSTABLE ATMOSPHERE. THE BEST
VERTICAL WIND SHEAR EXISTS ALONG THE KANSAS/NEBRASKA BORDER WHERE
THE BEST CHANCE FOR SEVERE WEATHER IS EXPECTED WITH LARGE HAIL...
DAMAGING WINDS AND ISOLATED TORNADOES POSSIBLE. AREAS TO THE SOUTH OF
I-70 LOOK TO REMAIN CAPPED WITH WARM TEMPERATUES AT MID LEVELS...
HOWEVER AN ISOLATED STORM CANT BE RULED OUT.

MARTELLO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 4:36 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson34 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1998Every severe thunderstorm warning in 1998

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.