Alert archive / Colorado / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 74, NWS Goodland, KS

June 14, 1997Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 14, 1997, 10:40 PM MDT for Yuma County, Colorado. It was in force for 45 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 14, 1997, 10:40 PM MDT (04:40 UTC)
Expired
Jun 14, 1997, 11:25 PM MDT
In force
45 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 04:41 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, 4.7 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 1997-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 70 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1997-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -71 square meters per square second.1939587897Sfc1 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
70 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
2413 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-71 m²/s²
0-3 km storm-relative helicity
-39 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 150440 RRA
SVRGLD
COC125-150525-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
1040 PM MDT SAT JUN 14 1997

* SEVERE THUNDERSTORM WARNING FOR
  EXTREME NORTHEASTERN YUMA COUNTY IN NORTHEASTERN COLORADO

* UNTIL 1125 PM MDT
 
* TAKE COVER IF YOU ARE IN THE WARNED AREA.

* AT 1039 PM MDT...GOODLAND DOPPLER RADAR AND SPOTTER REPORTS
  INDICATED A SEVERE THUNDERSTORM 20 MILES NORTH OF WRAY OR 20 MILES
  NxORTHEAST OF ECKLEY. DIME SIZED HAIL WAS REPORTED WITH THIS
  STORM. THE STORM WAS MOVING EAST AT 15 MPH.

THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS!

MENTZER

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 14, 2:22 PM MDT, 8 hours 18 minutes earlier.

Area forecast discussion, Jun 14, 2:22 PM MDT, 8 hours 18 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
222 PM MDT (322 PM CDT) SAT JUN 14 1997

CHANCES FOR RAIN EACH PERIOD MAIN CONCERN FOR THIS PACKAGE.

MODELS ARE RATHER SIMILAR...BUT MINOR DIFFS CREATE HAVOC WITH TIMING
OF PRECIP AND LOCATION OF FRONT ON SUNDAY.

HAVE LEANED TO AVN BASED ON SLIGHTLY BETTER H70 THERMAL
INITIALIZATION AND 6-HOUR SURFACE PRESSURE VERIFICIATION.  THUS
QUESTION BECOMES WHERE AND WHEN WILL PRECIP FALL.

LOOKS LIKE COLORADO COUNTIES UNDER THE GUN FOR SEVERE AFTER 00
UTC...BUT WITH LOSS OF HEATING SEVERITY PROBABILITY SHOULD DROP OFF
DRAMATICALLY.  SOME STORMS MAY WORK INTO NORTHWEST KANSAS AND
SOUTHWEST NEBRASKA...BUT BETTER DYNAMICS SHOW UP SUNDAY BEHIND FROPA.

WILL BLEND FAN AND FWC POPS AND LEAN TO FAN TEMPS.  NGM SEEMED MORE
REALISTIC WITH MOISTURE FIELDS THAN AVN...HENCE THE TENDENCY SPLIT.

GLD 058/080/052/071/051 4353   HLC 060/085/057/077/053 2543
CBK 058/081/052/072/051 4353   MCK 059/083/054/076/051 2543
TRB 058/082/052/073/052 4553   ITR 056/079/051/070/050 4253

ENTWISTLE

In the hours before

Special weather statement, Jun 14, 7:41 PM MDT, 2 hours 59 minutes before
COZ090>092-150345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
741 PM MDT SAT JUN 14 1997

...A TORNADO WATCH REMAINS IN EFFECT FOR KIT CARSON AND YUMA
COUNTIES UNTIL 9 PM MDT...

THE THREAT FOR SEVERE WEATHER HAS DIMINISHED OVER CHEYENNE
COUNTY...SO THE TORNADO WATCH HAS BEEN CANCELLED THERE. A TORNADO
WATCH REMAINS IN EFFECT UNTIL 9 PM MDT FOR YUMA AND KIT CARSON
COUNTIES.

A STRONG THUNDERSTORM WAS MOVING EAST OVER EASTERN COLORADO. AT 735
PM MDT THE STORM WAS MOVING INTO WESTERN WASHINGTON COUNTY. THIS
STORM MAY REACH YUMA COUNTY LATER THIS EVENING.

IF A THUNDERSTORM MOVES NEAR YOUR AREA...SEEK SHELTER INSIDE A
REINFORCED BUILDING.

MENTZER
Special weather statement, Jun 14, 9:06 PM MDT, 1 hour 34 minutes before
COZ090-091-150510-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
906 PM MDT SAT JUN 14 1997

...THE TORNADO WATCH FOR EXTREME EASTERN COLORADO EXPIRED AT 9 PM
MDT...

THUNDERSTORM ACTIVITY GENERALLY WAS DECREASING OVER EASTERN COLORADO
THIS EVENING. THEREFORE...THE TORNADO WATCH HAS EXPIRED.

HOWEVER...ONE LAST ROUND OF THUNDERSTORMS REMAINS OVER EXTREME
NORTHERN YUMA COUNTY. THESE STORMS WILL LIKELY PRODUCE LARGE HAIL
ALONG THE NORTHERN YUMA COUNTY BORDER THROUGH 930 MDT.

MENTZER
Special weather statement, Jun 14, 9:07 PM MDT, 1 hour 33 minutes before
COZ090-091-150510-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
906 PM MDT SAT JUN 14 1997

...THE TORNADO WATCH FOR EXTREME EASTERN COLORADO EXPIRED AT 9 PM
MDT...

THUNDERSTORM ACTIVITY GENERALLY WAS DECREASING OVER EASTERN COLORADO
THIS EVENING. THEREFORE...THE TORNADO WATCH HAS EXPIRED.

HOWEVER...ONE LAST ROUND OF THUNDERSTORMS REMAINS OVER EXTREME
NORTHERN YUMA COUNTY. THESE STORMS WILL LIKELY PRODUCE LARGE HAIL
ALONG TTHE NORTHERN YUMA COUNTY BORDER THROUGH 930 MDT.

MENTZER
Local storm report, Jun 14, 9:58 PM MDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
958 PM MDT SAT JUN 14 1997

TIME(MDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0949 PM    26 MILES OF ECKLEY        CO   .75 INCH HAIL
06/14/97   YUMA                           NEAR NORTHERN YUMA COUNTY
                                          BORDER

MENTZER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:52 PM MDTSevere Thunderstorm WarningGLDYuma48 min
Jun 14, 9:38 PM MDTSevere Thunderstorm WarningGLDYuma62 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.