Alert archive / Colorado / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 70, NWS Goodland, KS

June 3, 1998Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 3, 1998, 1:37 AM MDT for Kit Carson County, Colorado. It was in force for 48 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 3, 1998, 1:37 AM MDT (07:37 UTC)
Expired: Jun 3, 1998, 2:25 AM MDT
In force: 48 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 07:37 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 3, 2:15 AM MDT	Thunderstorm Wind 64	Peconic, CO	Wind accompanied by dime size hail.

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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.6 hours before the alert went out and 265 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2185 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 2, 2:09 PM MDT, 11 hours 28 minutes earlier.

Area forecast discussion, Jun 2, 2:09 PM MDT, 11 hours 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
209 PM MDT (309 PM CDT) TUE JUN 2 1998

...WHAT TO DO WITH EARLY SPRING WX IN JUNE...IS THE CHALLENGE THIS
PACKAGE...
   AT 18Z...TEMPS STILL IN THE 40S ACROSS ERN MT/ND AND THE NW HALF
OF SD. DECENT 3 HRLY PRESSURE RISES...ESPECIALLY AT RAPID CITY. SFC
WINDS STILL NNWLY ABOVE 3500FT MSL...L/V ELSEWHERE. PRE-FRONTAL
SURGE ALREADY MOVING INTO NWRNMOST CWA AS TEMPS IN COZ90 APPEAR
TO BE LEVELING OFF IN FULL SUN. BELIEVE THE ETA WILL GIVE THIS
PKG THE BEST INDICATOR OF FUTURE WEATHER.
   CHATTED WITH PUB EARLY ON THIS MRNG AND THEY FELT A WNWLY BOUNDARY
LAYER FLOW IN SERN CO AS NGM DEPICTS 18 HRS TO 24 HRS OUT TO THE KS
BORDER IS QUESTIONABLE. KNOWING THIS BIT HELPS HERE...BECAUSE AS AIR
MASS FIGURES OUT WHERE IT IT WANTS TO SETTLE ALONG THE PALMER DIVIDE
AND POST FRONTAL MID LEVEL MOISTURE...LAGGING SOME NOW...CATCHES UP
ON WEDNESDAY. MY FCST PROBLEM REALLY WAS...
   TO DECIDE IF -DZ RATHER THAN -RA WED AFTN-NITE/THURS MRNG WITH
DYNAMICS LACKING. HOWEVER...WITH DECENT ZONAL FLOW AND WARM AIR ALOFT
OVERRUNNING AND TRYING TO ERODE THE SHALLOW LAYER WEDNESDAY...ANY
SUN OUT WEST SHOULD CREATE -SHRA WITH LOW TOPS AT/NR 18K FT AND EWD
MOVING TRAJECTORIES TO HELP SATURATE THE ENTIRE H85/H7 LEVEL ALONG
KS/CO BORDER. A LOWERING BY ANOTHER 10 TO 15 METERS IN THE ETA...IE
H85/H7 THCKNS BETWEEN 1615 AND 1595M DID DEPART FROM THE NGM AT 36
HOUR POINT...WHICH SHOWS 1634 TO 1610 AT HLC AND GLD DURING THE DAY
RESPECTIVELY. THIS TOLD ME THAT THE NGM DOES NOT THINK THE PROSPECTS
OF COLD AND MOIST AIR ABOVE 3500 FT MSL CAN LAST BECAUSE IT THINKS
THE FRONT RANGE IS LOCATED AT LIC.
   SO WENT FOR AN INCRGLY HIER CHC FOR POPS THRU 12Z TO 48 HR POINT
ALONG KS/CO BORDER. IN NERN HALF OF ZONES...BEST MOISTURE WILL REMAIN
TRAPPED BETWEEN H7/H85 WITH ONLY STG NELY H85 FLOW TO SFC TO SHAKE
OUT PCPN IN STG SHEAR ZONE OF WSWLYS BETWEEN H85 AND H5. AS BOUNDARY
LAYER FLOW SUBSIDES ON WEDNESDAY OUT EAST... JUST CLOUDS BUT LTL IF
ANY RAIN ARE MY THOUGHTS ANYWAY. DEFINITELY COOL THOUGH OUT EAST
WITH H85 TEMPS PROGGED AT OR BELOW 7C MOST OF THIS EVENT.

.GLD...NONE

VOJTESAK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 2:11 AM MDT	Severe Thunderstorm Warning	GLD	Sherman	49 min
Jun 3, 2:45 AM MDT	Severe Thunderstorm Warning	GLD	Sherman	45 min
Jun 3, 2:48 AM MDT	Severe Thunderstorm Warning	GLD	Thomas	52 min
Jun 3, 3:39 AM MDT	Severe Thunderstorm Warning	GLD	Decatur	36 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1998 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.