Alert archive / Kansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 166, NWS Goodland, KS

August 12, 1998Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 12, 1998, 6:29 PM CDT for Graham County, Kansas. It was in force for 51 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: Aug 12, 1998, 6:29 PM CDT (23:29 UTC)
Expired: Aug 12, 1998, 7:20 PM CDT
In force: 51 min
Issued by: NWS Goodland, KS
Area: Whole counties

County Graham County, KS

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 23:32 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

Dodge City, (KDDC), launched 12:00Z, 11.5 hours before the alert went out and 176 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: 1278 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 760 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 92 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 122330 RRA
SVRGLD
KSC065-130020-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
529 PM MDT (629 PM CDT) WED AUG 12 1998

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN GRAHAM COUNTY IN NORTHWESTERN KANSAS

* UNTIL 720 PM CDT (620 PM MDT)

* AT 628 PM CDT... GOODLAND DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 14 MILES WEST OF HILL CITY OR 3 MILES SOUTHWEST OF
  MORLAND MOVING SOUTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  RURAL RESIDENTS AND MOTORISTS IN THE WARNED AREA

THIS IS A DANGEROUS STORM! STAY INDOORS AWAY FROM WINDOWS.

TURNER

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 Aug 12, 2:44 PM CDT, 3 hours 45 minutes earlier.

Area forecast discussion, Aug 12, 2:44 PM CDT, 3 hours 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
144 PM MDT (244 PM CDT) WED AUG 12 1998

      ...CLOUDS AND TEMPS WILL BE CHALLENGES THIS RUN...
   AT 19Z...VIS SATL SHOWING ENHANCED CU FIELD MOVING SSEWD THRU NEB
PANHANDLE ALONG WITH SHALLOW CU BACKBUILDING TO THE WSW TOWARDS
GLD FROM MCK/HLC AREA.
   WITH PWS CONSIDERABLY LOWER ACROSS 12Z RAOB NETWORK TODAY AND
ETA/NGM QPFS SHOWING LIGHT AMOUNTS IN HLC/MCK AREA ONLY...WILL LOWER
GOING 50 POPS IN WRN ZONES BACK DOWN TO 20 OR 30...AND WORD FOR
EVENING TSRA ONLY AS SUN SETS AND KILLS DIURNAL SC/CU/TCU FIELDS.
   AVN/ETA SEEMED TO HANDLE THE WEAK SFC LOW AND STATIONARY FRONTAL
POSITION OVER CWA WELL ALTHOUGH IT APPEARS TO BE ABOUT 100 MILES
WEST/AND 6 HOURS LATE IN WHERE/WHEN IT SAID IT WOULD BE BASED ON
WEAK SPIN OF CU FIELD INVOF LBF AT 1925Z. SFC LOW SHOULD BE INVOF
GLD BETWEEN 01Z-04Z.
   BY THEN...SOME ENERGY FROM THE SPIN IN SC WYO SHOULD BE ARRIVING
FROM OUR NW. BAD TIMING FOR RAIN AT GLD...BUT SHOULD KEEP SOME
THICKER MID/UPPER MOISTURE AROUND AWHILE ON THURSDAY. WILL STICK
WITH FAN FOR TEMPS/POPS AS NGM NOT COMPENSATING FOR WET GROUND
CWA-WIDE. CANT RULE OUT -RA FOR A TIME EARLY THURSDAY WITH THE COOLER
H7 AIR...BREAKS IN THE LOW CLOUDS/FOG AND GENERALLY LIGHT UPSLOPE
WINDS...ALTHOUGH BY AFTERNOON...CU WILL BE HI BASED IN NATURE AND
ALONG H7 BOUNDARY.
.GLD...NONE.

VOJTESAK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 6:18 PM CDT	Severe Thunderstorm Warning	GLD	Graham	47 min
Aug 12, 6:37 PM CDT	Severe Thunderstorm Warning	GLD	Logan	63 min

Nearby

Severe Thunderstorm Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.