Alert archive / Colorado / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 82, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jun 20, 1998, 5:58 PM MDT for Kit Carson County, Colorado. It was in force for 47 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 20, 1998, 5:58 PM MDT (23:58 UTC)
- Expired
- Jun 20, 1998, 6:45 PM MDT
- In force
- 47 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 00:03 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, 12.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2018 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGLD 202358 RRA SVRGLD COC063-210045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GOODLAND KS 558 PM MDT SAT JUN 20 1998 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN AND CENTRAL KIT CARSON COUNTY IN EAST CENTRAL COLORADO * UNTIL 645 PM MDT * AT 556 PM MDT... GOODLAND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 38 MILES EAST OF LIMON OR 6 MILES NORTHWEST OF SEIBERT MOVING SOUTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SEIBERT AROUND 610 PM MDT VONA AROUND 630 PM MDT 9 MILES SOUTH OF VONA AROUND 640 PM MDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! MATHEWSON/DDT
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, 2:18 PM MDT, 3 hours 40 minutes earlier.
Area forecast discussion, Jun 20, 2:18 PM MDT, 3 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 218 PM MDT (318 PM CDT) SAT JUN 20 1998 ...FORECAST CHALLENGES THIS CYCLE ARE NIGHTTIME THUNDERSTORMS CHANCES AND AFTERNOON HIGHS... SCORE ANOTHER ONE FOR THE ETA WHICH ONCE AGAIN HAS MADE THE NGM LOOK SILLY IN TRYING TO FCST LOW LEVEL FEATURES IN THE LEE OF THE ROCKIES. COLD FRONT PUSHED THRU AS PROGGED BY YDYS ETA...AND NELY UPSLOPE FLOW HAS KEPT TEMPS ROUGHLY 10 WHOPPING DEGREES COOLER THAN OUR OLD TRUSTY FWC GUIDANCE SUGGESTED. LOOKING UPSTREAM IN 6.7 MICRON IMAGERY...A WELL-DEFINED SWIRL IS LOCATED IN SERN UT MOVING ENE AT ABOUT 70KTS. RUC TIMES THIS ENERGY INTO ERN CO BY 06Z. ETA PROGGED MEAN LAPSE RATES FROM 700-500 MB WILL BE FAIRLY STEEP MAINLY IN FAR WRN AND SRN ZONES WHERE VALUES OF 8-9 DEGREEC C/KM WILL BE FOUND BY MIDNIGHT. GOOD VERTICAL WIND SHEAR IS ALSO DEVELOPING AS NOSE OF 70KT 250 JET COMES INTO SE CO OVER VEERING LOW-LEVEL WINDS. NOCTURNAL TIMING OF THE EVERGY IS UNFAVORABLE THOUGH AS 850 INVERSION WILL BUILD IN RADIATIONAL COOLING. STILL...SFC DEWPOINTS SHOULD BE BETWEEN 50 AND 55 DEGREES...AND HAVE OPTED TO INCLUDE 10-20 POPS FOR SRN/WRN CWA. ELSEWHERE...EXPECT DEVELOPING MID CLOUDS. HAVE ALSO INTRODUCED POPS FOR SUNDAY NIGHT OVER THE ENTIRE CWA... WITH THE HIGHEST VALUES GOING TO THE NERN ZONES. REASONS ARE MOIST UPSLOPE FLOW INTO THE FRONT RANGE AND DEVELOPING INSENTROPIC LIFT BETWEEN 312 AND 316K. OVERUNNING SETS UP OVER BOUNDARY...WHICH BY SUN AFTN SHOULD STILL BE LOCATED OVER SRN/WRN EXTREMES OF CWA. AVN...WHICH LOOKS SIMILAR TO THE ETA...PROGS PRECIP TO LAST INTO EARLY MONDAY OVER CWA...AND THIS DOESNT LOOK TOO BAD WHILE CONSIDERING PROGGED SFC DEWPOINTS AT GLD NEAR 65 DEGREES. CONFIDENCE ATTM IS LOW FOR THIS HOWEVER...BUT FUTURE SHIFTS SHOULD MONITOR THIS SCENARIO FOR PSBL INCLUSION OF THUNDER MONDAY. AS FOR HIGHS...WILL CONTINUE IN OPPOSITION TO WARM BIAS OF NGM FWC CONSIDERING THAT COOL OUTFLOW WILL LIKELY REINFORCE SLY LOCATION OF FRONT FOR MONDAY. RAINFALL COULD ALSO PUT A SHORT HOLD ON APPROACHING HEAT WAVE. .GLD...NONE STAVISH
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.