Alert archive / Kansas / Tornado Warnings in 1999

Tornado Warning 29, NWS Goodland, KS

September 11, 1999Logan County, Kansas

NWS Goodland, KS issued this tornado warning at Sep 11, 1999, 4:24 PM CDT for Logan County, Kansas. It was in force for 66 min. 2 reports 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
Sep 11, 1999, 4:24 PM CDT (21:24 UTC)
Expired
Sep 11, 1999, 5:30 PM CDT
In force
66 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Logan County, KS

The radar

The Goodland radar (KGLD), 69 km from the middle of the area, began a volume at 21:25 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

TimeReportWhereRemark
Sep 11, 4:40 PM CDTHail 0.88Monument, KS
Sep 11, 5:20 PM CDTHail 1.5Oakley, KS

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

Dodge City, (KDDC), launched 12:00Z, 9.4 hours before the alert went out and 168 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 1999-09-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 1999-09-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
185 J/kg
Mixed-layer CIN
-259 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
23 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 112126
TORGLD
KSC109-112230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
324 PM MDT (424 PM CDT) SAT SEP 11 1999

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* TORNADO WARNING FOR...
  LOGAN COUNTY IN WEST CENTRAL KANSAS

* UNTIL 530 PM CDT (430 PM MDT)

* AT 423 PM CDT... GOODLAND DOPPLER RADAR INDICATED A DEVELOPING
  TORNADO 19 MILES SOUTHWEST OF OAKLEY OR 5 MILES NORTH OF RUSSELL
  SPRINGS... MOVING EAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  7 MILES SOUTH OF MONUMENT               AROUND 455 PM CDT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

COLEMAN

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Sep 11, 3:29 PM CDT, 55 minutes earlier.

Area forecast discussion, Sep 11, 3:29 PM CDT, 55 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
229 PM MDT SAT SEP 11 1999

...MUCH COOLER AIR TO MOVE INTO THE TRI-STATE AREA BY SUNDAY
MORNING...

ATTM A DRY LINE HAD DEVELOPED EAST OF GLD AND EXTENDED SOUTHWEST
INTO COLORADO. TSRA HAD DEVELOPED ALONG THE DRY LINE BUT WARM AIR
ALOFT IS KEEPING THE ACTIVITY TO A MINIMUM ATTM. THE 88D WAS
ALSO SHOWING SHRA/TSRA WERE OCCURRING ALONG THE NE/KS BORDER AND THIS
SHUD MOVE INTO THE CWA THIS AFTN WITH AN IMPRESSIVE SFC COLD FRONT TO
FOLLOW. BEFORE THE FRONT DOES...A 5H/VORT TROF WITH INCREASING MID
LVL MOISTR WILL MOVE THRU THE TRI-STATE AREA THIS AFTN. 7/5H LAPSE
RATES WERE BETTER THAN 7C/KM AND WITH MID LVL CAA...TSRA SHUD CONT
DEVELOPING AHEAD OF THE ADVANCING FRONT. ALSO WITH A 2H/LFQ JET
ENHANCING UPR LVL DVRG...A FEW OF THE STORMS SHUD BECOME STRONG
IF NOT SEVERE.

THE ETA/NGM WERE IN FAIRLY GOOD AGREEMENT WITH THE SFC COLD FRONT
PUSHING ACRS THE FA DURING THE NIGHT WITH FROPA IN GLD BY 06Z. MUCH
COOLER AIR WILL ADVT INTO THE CWA ON NORTHERLY WINDS AND AS PRESSURE
GRADIENTS TIGHTN...THESE WINDS SHUD BECOME WINDY TOWARD MORNING. GLD
TIME SECTIONS HAS LOW LVL MOISTR INCREASING AND PATCHY FOG IS
POSSIBLE TOWARD MORNING. ALSO AS MID LVL MOISTR CONTS TO INCREASE...
SKIES SHUD REMAIN MOSTLY CLOUDY. DEPENDING ON THE SFC WIND DIRECTION
WHICH APPEARS TO BE NNE...UPSLOPE MAY OCCUR AND SKIES MAY REMAIN
MOSTLY CLOUDY THROUGH MIDDAY. A DRY SLOT WORKS ITS WAY INTO THE N/E
CWA BY AFTN WHERE SOME SUN IS POSSIBLE. 5H/HGHTS AND THCKNS FALL AND
TMPS SHUD ONLY RISE INTO THE 60S TO AROUND 70 ACRS MOST OF THE FA.

WITH COOLR AIR CONTINUING TO ADVT INTO THE AREA BELOW AVERAGE
NITE TIME TMPS WILL OCCUR MONDAY MORNING. MORNING TMPS WILL FALL
INTO THE 40S WITH POSSIBLE 30S AT SOME LOCATIONS. THE COLD FRONT
THAT MOVES ACRS THE CWA WAS ASSOCIATED WITH A STRONG MID LVL LOW
PRESSURE OVR THE GREAT LAKES. SEVERAL WEAK DISTURBANCES WILL SPIN
AROUND THE LOW AND APPROACH THE FA MONDAY THUS KEEPING SKIES PARTLY
CLOUDY. ALSO WITH LOW 5H/HGHTS THE COOL TMPS SHUD PERSIST.

AS THE LOW OVR THE GREAT LAKES PUSHES EAST...A COUPLE OF WEAK
DISTURBANCES DEVELOP JUST SW OF KANSAS AND TRACK NE TUE/WED. THIS
MAY AFFECT OUR S/E FA DURING THIS PERIOD AND THEN DRIFT ALITTLE
FURTHER NORTH WED INTO THURS.

.GLD...NONE.

VPAPOL

In the hours before

Local storm report, Sep 11, 3:08 PM CDT, 1 hour 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
208 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0150 PM    HERNDON                   KS    1.75 INCH HAIL
09/11/99   RAWLINS

0200 PM    HERNDON                   KS    1 INCH HAIL
09/11/99   RAWLINS

SULLIVAN
Local storm report, Sep 11, 3:08 PM CDT, 1 hour 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
208 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0150 PM    HERNDON                   KS    1.75 INCH HAIL
09/11/99   RAWLINS

0200 PM    HERNDON                   KS    1 INCH HAIL
09/11/99   RAWLINS

SULLIVAN
Local storm report, Sep 11, 3:26 PM CDT, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
226 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0217 PM    7 SW CHEYENNE WELLS       CO    60 MPH TSTM GUST
09/11/99   CHEYENNE

SULLIVAN
Local storm report, Sep 11, 3:26 PM CDT, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
226 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0217 PM    7 SW CHEYENNE WELLS       CO    60 MPH TSTM GUST
09/11/99   CHEYENNE

SULLIVAN
Local storm report, Sep 11, 3:42 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
242 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0212 PM    11 NW OBERLIN             KS    1.75 INCH HAIL
09/11/99   DECATUR

SULLIVAN
Local storm report, Sep 11, 3:42 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
242 PM MDT SAT SEP 11 1999

TIME(MDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0212 PM    11 NW OBERLIN             KS    1.75 INCH HAIL
09/11/99   DECATUR

SULLIVAN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 11, 2:52 PM CDTSevere Thunderstorm WarningGLDRawlins48 min
Sep 11, 3:03 PM CDTSevere Thunderstorm WarningGLDDecatur47 min
Sep 11, 3:51 PM CDTSevere Thunderstorm WarningGLDDecatur64 min
Sep 11, 4:14 PM CDTSevere Thunderstorm WarningGLDLogan61 min
Sep 11, 4:29 PM CDTSevere Thunderstorm WarningGLDGreeley51 min
Sep 11, 4:55 PM CDTSevere Thunderstorm WarningGLDDecatur, Norton60 min
Sep 11, 5:02 PM CDTSevere Thunderstorm WarningGLDLogan63 min
Sep 11, 5:22 PM CDTSevere Thunderstorm WarningGLDSheridan63 min

Nearby

Tornado Warnings in Kansas, 1999Every tornado warning in 1999Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.