Alert archive / Kansas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 182, NWS Goodland, KS

July 2, 1999Cheyenne County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 2, 1999, 5:36 PM CDT for Cheyenne County, Kansas. It was in force for 64 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: Jul 2, 1999, 5:36 PM CDT (22:36 UTC)
Expired: Jul 2, 1999, 6:40 PM CDT
In force: 64 min
Issued by: NWS Goodland, KS
Area: Whole counties

County Cheyenne County, KS

The radar

The Goodland radar (KGLD), 47 km from the middle of the area, began a volume at 22:39 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 2, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.6 hours before the alert went out and 177 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: 2748 J/kg
Mixed-layer CIN: -307 J/kg
Mixed-layer LCL: 586 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 320 m²/s²
0-3 km storm-relative helicity: 403 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 Jul 2, 3:28 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 2, 3:28 PM CDT, 2 hours 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
228 PM MDT FRI JUL 2 1999

VERY WARM TO HOT TMPS THIS WEEKEND.

ATTM SATL WAS SHOWING MOSTLY CLEAR SKIES ACROSS THE CWA WITH A SW
DOWNSLOPE COMPONENT TO THE WIND INCREASNG AFTN TMPS. 88D WAS SHOWING
A FEW TSRA S/SW OF THE CWA WHICH WAS MOVING ENE AND THE RUC SEEMED
TO ANALYZE THIS WELL.

LOOKING AT DDC 12Z SOUNDING AND MODIFYING IT GAVE VERY IMPRESSIVE
CAPES THIS AFTN OF OVR 5000J. 7/5H LAPSE RATES WERE VERY HIGH AND
TMPS DIF BETWEEN 850/5H WERE BETTER THAN 40C ACROS THE CWA. WITH
CONVECTION ALREADY OCCURRING JUST S OF THE CWA...TSRA SHUD EITHER
MOVE INTO OR DEVELOP ACROSS THE CWA THIS LATE AFTN. SOME MID LVL
MOISTR AND COLD AIR ADVTION WAS ASSOCIATED WITH A 5H/VORT LOBE
DRIFTING MAINLY ACROSS THE S CWA THIS EARLY EVENING. 2/3H MB CHARTS
SHOWED A HI OVR E TX WHICH WAS WRAPPING GULF OF MEX MOISTURE AROUND
AND INTO OUR CWA. AWIPS TIME SECTIONS SHOWED IMPRESSIVE OMEGAS ALOFT
AND WITH HIGHS TMPS RISING INTO THE UPPER 90S/DEW POINTS IN THE 60S
SOME STORMS THAT DO BREAK THE CAP SHUD BECOME STRONG IF NOT SEVERE.

MID LVL MOISTR DECREASES SATURDAY AND ETA SHOWS BOTH THE THCKNS AND
5H/HGHTS INCREASING AS DO THE SFC WNDS AND EXPECT ANOTHER VERY WARM
TO HOT DAY TOMORROW. MUCH OF THE DYNAMICS MOVES NE AWAY FROM THE CWA
BUT WITH SFC TMPS NEARING THE TRIPLE DIGITS AND DEW PTS IN THE
60S A FEW TSRA AGAIN MAY DEVELOP.

FOR THE FORTH OF JULY APPEARS THERE WILL BE LITTLE CHANGE IN AFTN
TMPS. 5H/HI RIDGE REMAINS IN PLACE...ACROSS THE CWA AND WITH SW SFC
WINDS A CONT VERY WARM TO HOT END OF THE WEEKEND IS IN STORE. SOME
MID LVL MOISTR TRIES TO ADVT INTO THE CWA AND WITH THE VERY WARM TMPS
AND ISOLD TSRA MAY DEVELOP.

THE EXTENDED HAS A SFC FRONT APPROACHING THE FA FROM THE NW MONDAY
AND SHUD ACT AS A TRIGGER FOR TSRA DEVELOPMENT. WITH THE APPROACHING
FRONT AFTN TMPS SHUD BE SLIGHTLY COOLR THAN PREVIOUS DAYS. THE FRONT
SLOWS AS IT EDGES SOUTH ACROSS THE CWA DURING TUESDAY AS SFC HIGH
PRESSURE BUILDS BEHIND IT. MUCH OF THE TSRA SHUD BE OVR THE S CWA
TUESDAY AHEAD OF THE FRONT.

TMPS SHUD BEGIN TO INC ACROSS THE CWA WED WITH A RETURN OF SOUTHERLY
WINDS. WITH DAYTIME HEATING AND A RETURN OF THE MOISTURE A FEW TSRA
AGAIN SHUD DEVELOP.

.GLD...NONE.

VPAPOL

In the hours before

Special weather statement, Jul 2, 2:55 PM CDT, 2 hours 41 minutes before

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Special weather statement, Jul 2, 3:57 PM CDT, 1 hour 39 minutes before

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Local storm report, Jul 2, 5:17 PM CDT, 19 minutes before

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Local storm report, Jul 2, 5:17 PM CDT, 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 5:24 PM CDT	Severe Thunderstorm Warning	GLD	Sherman	66 min
Jul 2, 6:19 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	61 min
Jul 2, 6:29 PM CDT	Severe Thunderstorm Warning	GLD	Sherman	31 min
Jul 2, 6:59 PM CDT	Tornado Warning	GLD	Rawlins	46 min
Jul 2, 4:56 PM CDT	Severe Thunderstorm Warning	GLD	Kit Carson	64 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1999 Every severe thunderstorm warning in 1999

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.