Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 69, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jun 12, 1997, 5:07 PM MDT for Cheyenne County, Colorado. It was in force for 63 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 12, 1997, 5:07 PM MDT (23:07 UTC)
- Expired
- Jun 12, 1997, 6:10 PM MDT
- In force
- 63 min
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
County Cheyenne County, CO
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 12, 12:30 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.1 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.
- Mixed-layer CAPE
- 48 J/kg
- Mixed-layer CIN
- -253 J/kg
- Mixed-layer LCL
- 1774 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
713 WUUS1 KGLD 122306 SVRGLD COC017-130010- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GOODLAND KS 507 PM MDT THU JUN 12 1997 * SEVERE THUNDERSTORM WARNING FOR CENTRAL AND EASTERN CHEYENNE COUNTY COLORADO IN EAST CENTRAL COLORADO * UNTIL 610 PM MDT * SOME LOCATIONS AFFECTED 8 MILES SOUTH OF ARAPAHOE AROUND 545 PM MDT * AT 506 PM MDT...GOODLAND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTH OF CHEYENNE WELLS MOVING SOUTHEAST AT 15 MPH. SINCE A TORNADO WATCH REMAINS IN EFFECT...HAVE A PLAN READY IN CASE A TORNADO ALSO OCCURS WITH THIS SEVERE THUNDERSTORM. IF YOU HEAR A LOUD ROARING SOUND OR SEE ROTATING DEBRIS...IT MAY BE A TORNADO. ENTWISTLE
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 12, 1:06 PM MDT, 4 hours 1 minute earlier.
Area forecast discussion, Jun 12, 1:06 PM MDT, 4 hours 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 106 PM MDT (206 PM CDT) THU JUN 12 1997 BIGGEST CHALLANGE TDA IS POPS FOR 1ST PD. SVRL FACTORS COMING TOGETHER TO SUPPORT HI POPS TNGT. CNVTN ALREADY STG NR LIC AND XPCD TO DVLP EWD ALG PALMER DIVIDE THRU RMNDR OF THE AFTN. THE BOUNDARIES LAID DN BY THIS STM WL LKLY INTERACT WITH THE PLETHERA OF BOUNDARIES LEFT BEHIND FM YDAS STMS. THE MOST PRONOUNCED BNDRY IS LCTD JUST S OF FA. ONE ROUND OF SCT ACTVTY IS LKLY LT THIS AFTN AND ERL THIS EVE IN WRN AND SRN ZNS DUE TO THERMAL FORCING. NXT ROUND SHOULD COME LT TNGT AND ERL FRI AS FAIRLY STG SW CURRENTLY OVR WRN NEW MEXICO MOVES INTO FA. ETA SEEMS A BIT TOO FAST AND WK WITH THIS SYS AND FAVOR NGM/AVN HANDLING. BTR COVERAGE BUT LESS STRENGTH TO THE CNVTN IS LKLY AS THIS DYNAMIC FORCING AFFECTS THE AREA. WL GO WITH GD CHC OR LKLY MOST ZNS. IN ADDITION...UPSLP FLOW SHOULD ADD A POTENTIAL OF FOG TO RGN. TOMORROWS FORCING SHOULD BE SIMILAR IN TIMING JUST NOT AS STG. MORNING FOG AND CLDS SHOULD KEEP BEST THERMAL FORCING CONFINED TO CO ZNS AND INCOMING WV APPRS WKER. WL FOLLOW A GEN DRYING TREND THRU PACKAGE WITH CUTOFF LOW REMAINING W OF AREA BEYOND PACKAGE PD. ONCE AGN CONCERNED THE MODELS MAY NOT BE TIMING EJECTED WVS CORRECTLY... SO WL NEED TO BROADBRUSH A BIT. FWCS SEEM A BIT HI TMW ERN ZNS AND ALL BUT EXTRM SW ZNS ON SAT GVN CONTINUED UPSLP FLOW AND CLDS. WL UNDERCUT HI TEMPS ACCORDINGLY. GLD 057/075/055/082 6532 HLC 058/075/057/081 5522 CBK 057/075/056/081 6532 MCK 057/074/056/081 5522 TRB 057/077/055/083 6532 ITR 056/076/055/084 6333 BARKER
In the hours before
Special weather statement, Jun 12, 11:53 AM MDT, 5 hours 14 minutes before
COZ090>092-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 1153 AM MDT THU JUN 12 1997 ...A TORNADO WATCH HAS BEEN ISSUED FOR EXTREME EASTERN COLORADO EFFECTIVE UNTIL 6 PM... A MOIST UNSTABLE AIR MASS REMAINS ENTRENCHED ACROSS EXTREME EASTERN COLORADO AT MIDDAY. AS ABUNDANT SUNSHINE DESTABALIZES THE ATMOSPHERE...THUNDERSTORMS ARE EXPECTED TO MOVE EASTWARD INTO EXTREME EASTERN COLORADO. THE WIND SHEAR IN THE ATMOSPHERE IS SUFFICIENT TO PRODUCE A THREAT OF TORNADOES...AS WELL AS...LARGE HAIL AND WIND GUSTS OVER 55 MPH. THIS TORNADO WATCH IS IN EFFECT UNTIL 6 PM FOR YUMA...KIT CARSON... AND CHEYENNE COUNTIES. REMEMBER...A TORNADO WATCH MEANS THAT TORNADOES ARE POSSIBLE IN AND NEAR THE WATCH AREA. LARGE HAIL AND DAMAGING WINDS MAY ALSO OCCUR. BE READY TO MOVE TO A BASEMENT OR STORM CELLAR IF A WARNING IS ISSUED FOR YOUR AREA. STAY TUNED TO NOAA WEATHER RADIO...RADIO...CABLE TELEVISION...OR TELEVISION FOR THE LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION. BARKER
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 2:17 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 63 min |
| Jun 12, 2:32 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 63 min |
| Jun 12, 3:30 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 50 min |
| Jun 12, 4:03 PM MDT | Tornado Warning | GLD | Kit Carson | 37 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.