Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 83, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jun 20, 1997, 8:29 PM MDT for Yuma County, Colorado. It was in force for 61 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
- Jun 20, 1997, 8:29 PM MDT (02:29 UTC)
- Expired
- Jun 20, 1997, 9:30 PM MDT
- In force
- 61 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 02:31 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 |
|---|---|---|---|
| Jun 20, 9:12 PM MDT | Hail 0.88 | Idalia, 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, 2.5 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.
- Mixed-layer CAPE
- 138 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 3791 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
276 WUUS1 KGLD 210230 RRA SVRGLD COC125-210330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GOODLAND KS 829 PM MDT FRI JUN 20 1997 * SEVERE THUNDERSTORM WARNING FOR SOUTHERN YUMA COUNTY IN NORTHEASTERN COLORADO * UNTIL 930 PM MDT * SOME LOCATIONS AFFECTED IDALIA AROUND 850 PM MDT BONNY RESERVOIR AROUND 905 PM MDT HALE AROUND 910 PM MDT * AT 828 PM MDT...GOODLAND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 24 MILES NORTHWEST OF BURLINGTON OR 13 MILES SOUTHWEST OF IDALIA MOVING EAST AT 25 MPH. THIS IS A DANGEROUS STORM CAPABLE OF DAMAGING WINDS STAY INDOORS AWAY FROM WINDOWS. SKIPPER/STAVISH
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 20, 1:49 PM MDT, 6 hours 40 minutes earlier.
Area forecast discussion, Jun 20, 1:49 PM MDT, 6 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 149 PM MDT (249 PM CDT) FRI JUN 20 1997 ...FORECAST CHALLENGE TO BE T-STORMS CHCS AGAIN WITH TEMPS BEING A SECONDARY CONCERN... 12Z MODEL RUNS INDICATE THAT THE ETA INITIALIZES WELL ON ALL LEVELS WITH THE AVN AGREEING WITH THE ETA ALOFT. WILL GO WITH THE ETA JUST DUE TO ITS SIMILARITY WITH THE AVN (WHICH HAS BEEN THE MODEL OF CHOICE LATELY) AND ITS EXCELLENT HANDLING OF SFC FEATURES AND OVERNIGHT LOWS. SFC BOUNDARY CONTS TO REMAIN OVER THE CENTRAL PORTIONS OF CWA FROM HLC TO TRB WITH A WEAK SFC LO LOCATED RIGHT OVR THE GLD-WLC AREA ATTM. CONVERGENCE ALONG THIS BOUNDARY SHOULD HELP BE A FOCUS FOR CNVCTN LATER THIS EVENING WITH UPSLOPE COMPONENT NOTED ALONG THE NEB BORDER. OTHER STORMS SHOULD BREAK OUT IN AREA OF DYNAMICS IN THE CYS-DEN CORRIDOR AND MOVE MAINLY ENE WITH THE MEAN FLO. SOME OF THESE HAVE THE POTENTIAL TO RIGHT TURN INTO OUR AREA AND FEEL SPCS OUTLINE IS GOOD AFTER LOOKING AT CAPE...SR HEL AND LI PROGS. FEEL MAIN THREAT MOST AREAS WILL BE STRONG...GUSTY WINDS ONCE AGAIN WITH INVERTED-V SOUNDINGS UPSTREAM AND WET BULB 0 AROUND 10KFT. SAT SHOULD BE SIMILAR TO TDY BY STARTING OUT MSTLY SUNNY WITH SUBSIDENCE BEHIND CONVECTION...HOWEVER TEMPS SHOULD BE A LEAST A CAT COOLER WITH E-NE FLO N OF SFC FRONT AND LO NEAR DDC. RESIDUAL BOUNDARIES MAY EXIST FROM TONIGHT...THUS PUTTING IN WDLY SCT MENTION NW AREAS. ANOTHER S/W PULLS OUT INTO NEB BY SAT NGT SETTING UP MORE CONVECTION AGAIN. BY SUN...MID LVL RDG BEGINS TO AMPLIFY OVER THE REGION HELPING TEMPS WARM BACK TO THE 90S WITH ISOLD T-STORMS POSSIBLE LATE IN THE DAY. LIKE FAN MOS REAL WELL AS IT HANDLES ZNL FLO TO THE N AND S/WS WELL...THUS GIVING MORE REALISTIC POPS...TEMPS AND CLOUD CVR. GLD 062/089/063/093 3-3 HLC 068/092/065/097 3-2 CBK 064/088/065/094 3-3 MCK 064/087/063/093 423 TRB 062/094/064/096 2-2 ITR 060/088/061/091 423 MARTELLO
In the hours before
Special weather statement, Jun 20, 3:03 PM MDT, 5 hours 26 minutes before
COZ090-NEZ079>081-210305- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 303 PM MDT (403 PM CDT) FRI JUN 20 1997 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM MDT (10 PM CDT) FOR NORTHERN YUMA COUNTY IN NORTHEAST COLORADO AND DUNDY...HITCHCOCK AND RED WILLOW COUNTIES OF EXTREME SOUTHWEST NEBRASKA... STRONG DAYTIME HEATING ALONG WITH AMPLE LOW-LEVEL MOISTURE WILL HELP IN INITIATING THUNDERSTORMS LATE THIS AFTERNOON INTO TONIGHT. A STATIONARY SURFACE BOUNDARY IS LOCATED OVER THE NEBRASKA/KANSAS BORDER AND STRETCHES SOUTHWEST INTO NORTHEAST COLORADO. THE STATIONARY FRONT WILL COMBINE WITH AN UPPER-LEVEL DISTURBANCE MOVING OUT OF WYOMING THIS EVENING TO AID IN THE DEVELOPMENT OF SEVERE THUNDERSTORMS. WIND PROFILES IN THIS AREA INDICATE THE POTENTIAL FOR TORNADO DEVELOPMENT ALONG WITH WIND GUSTS APPROACHING 60 MPH. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES IN AND NEAR THE WATCH AREA. PEOPLE IN NORTHERN YUMA COUNTY COLORADO...DUNDY...HITCHCOCK AND RED WILLOW COUNTIES OF SOUTHWEST NEBRASKA ARE IN THE TORNADO WATCH AREA. MOVE INSIDE A STORM CELLAR...A BASEMENT...OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOUSE IF A TORNADO THREATENS. DO NOT USE YOUR CAR TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO INSIDE A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...LIE DOWN IN A DITCH OR LOW SPOT. STAY TUNED TO NOAA WEATHER RADIO...RADIO...CABLE TELEVISION...OR TELEVISION FOR MORE INFORMATION ON THIS SEVERE WEATHER SITUATION. MARTELLO &
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.