Alert archive / Colorado / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 199, NWS Goodland, KS

August 23, 1997Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Aug 23, 1997, 4:05 PM MDT for Kit Carson County, Colorado. It was in force for 65 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 23, 1997, 4:05 PM MDT (22:05 UTC)
Expired
Aug 23, 1997, 5:10 PM MDT
In force
65 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 78 km from the middle of the area, began a volume at 22:06 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 23, 4:40 PM MDTHail 0.88Seibert, 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 12:00Z, 10.1 hours before the alert went out and 83 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 1997-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 joules per kilogram.LCLLFCEL10008507005003002001001 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 1997-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
76 J/kg
Mixed-layer CIN
-271 J/kg
Mixed-layer LCL
2322 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
32 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 232206 RRA
SVRGLD
COC063-232310-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
405 PM MDT SAT AUG 23 1997

* SEVERE THUNDERSTORM WARNING FOR
  WESTERN KIT CARSON COUNTY IN EAST CENTRAL COLORADO

* UNTIL 510 PM MDT
 
* SOME LOCATIONS AFFECTED
  HWY 59...8 MILES NORTH OF SEIBERT       AROUND 500 PM MDT

* AT 406 PM MDT...GOODLAND DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 38 MILES NORTHWEST OF BURL>INGTON OR 17 MILES NORTH OF
  SEIBERT MOVING SOUTH SOUTHEAST AT 10 MPH.

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

TURNER

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 Aug 23, 1:55 PM MDT, 2 hours 10 minutes earlier.

Area forecast discussion, Aug 23, 1:55 PM MDT, 2 hours 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
155 PM MDT (255 PM CDT) SAT AUG 23 1997

WILL BE WAITING TIL LAST MINUTE TO RELEASE ZONES THIS AFTERNOON IN
ORDER TO BETTER DEFINE COUNTIES IN NEED OF ISOLATED TSRA MENTION FOR
THIS EVENING.  VISIBLE IMAGERY AND EYES OUT THE WINDOW SHOW CU
DEVELOPING ALONG BOUNDARY FROM NORTHEAST CORNER OF COLORADO TO
COLORADO SPRINGS VICINITY.

WEAKER CU NOTED IN GREELEY...WICHITA...AND LOGAN COUNTIES /A FAVORED
AREA TO INITIATE CONVECTION IN SOUTH-SOUTHEAST FLOW/ BUT WINDS ARE
NOT UNIFORMLY FROM 160 DEGREES AS OF THE 19Z OBS.

MODELS ARE IN GENERAL AGREEMENT WITH AMPLIFYING RIDGE AND D-PROG/D-T
TREND OF SLOWING PACIFIC AIR ARRIVAL...SO HAVE BLENDED SOLUTIONS FOR
THIS PACKAGE WITH IDEA THAT WIND SHIFT WILL OCCUR MONDAY AFTERNOON
AND EVENING ACROSS FA.  BEST DYNAMICS APPEAR TO REMAIN NORTH OF
AREA...SO WILL STAY IN LINE WITH LOW FWC/FAN POPS IN OUT PERIODS.
GUIDANCE TEMPS APPEAR REASONABLE...ALTHOUGH DAY 2 MAXES WILL BE TOO
COOL IF UPPER LEVEL CLOUDS EITHER DO NOT ARRIVE OR REMAIN TOO THIN
TO BLOCK SUNSHINE.

NO MENTION OF CLOUDS OR FOG FOR THIS PACKAGE AS EASTERN HALF OF CWA
HAS HAD ANOTHER DAY TO DRY OUT AND FLOW IN THE EARLY MORNING WILL
EITHER PARALLEL TERRAIN OR HAVE DRAINAGE COMPONENT TO IT.

.GLD...NONE.

ENTWISTLE

Nearby

Severe Thunderstorm Warnings in Colorado, 1997Every severe thunderstorm warning in 1997

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.