Alert archive / Colorado / Tornado Warnings in 1999

Tornado Warning 9, NWS Goodland, KS

June 2, 1999Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Jun 2, 1999, 7:04 PM MDT for Yuma County, Colorado. It was in force for 31 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
Jun 2, 1999, 7:04 PM MDT (01:04 UTC)
Expired
Jun 2, 1999, 7:35 PM MDT
In force
31 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 01:05 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
Jun 2, 7:25 PM MDTHail 2.5Wray, CO
Jun 2, 7:25 PM MDTHail 2.5Wray, CO

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

Denver, CO (KDNR), launched 00:00Z, 1.1 hours before the alert went out and 70 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, Denver, CO at 00:00Z on 1999-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1999-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
55 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
3304 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGLD 030104 RRA
TORGLD

COC125-030135-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
704 PM MDT WED JUN 2 1999

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN YUMA COUNTY IN NORTHEASTERN COLORADO

* UNTIL 735 PM MDT

* AT 659 PM MDT... GOODLAND DOPPLER RADAR INDICATED A DEVELOPING
  TORNADO 13 MILES WEST OF WRAY OR 7 MILES SOUTH OF ECKLEY... MOVING
  NORTHEAST AT 25 MPH. THIS WARNING REPLACES THE SEVERE THUNDERSTORM
  WARNING. THIS STORM HAS PRODUCED FUNNEL CLOUDS AND DIME SIZE HAIL.

* THE TORNADO IS EXPECTED TO BE NEAR...
  9 MILES NORTHWEST OF WRAY               AROUND 730 PM MDT

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

BULLER


&

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 Jun 2, 2:29 PM MDT, 4 hours 35 minutes earlier.

Area forecast discussion, Jun 2, 2:29 PM MDT, 4 hours 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
225 PM MDT (325 PM CDT) WED JUN 2 1999

...CHALLENGE ONCE AGAIN IS EXTENT OF TSTM COVERAGE AND SEVERITY
TONIGHT AND HIGH TEMPS ON FRI...

MOSTLY CLEAR SKIES OVER TRI-STATE AREA WITH GOOD SFC HEATING ONGOING
WITH TEMPS IN THE 80S. CWA IS IN SLIGHT OR MOD RISK AREA. DEWPOINTS
ARE IN THE UPPER 50S. AWAITING TRIGGER APPROACHING FROM THE SW.

INITIALIZATION OF MODELS THIS AM INDICATING ETA ONCE AGAIN SEEMED TO
BE BEST ON SPECIFICS...BOTH AT SFC AND ALOFT. SO I AM STAYING ONCE
AGAIN WITH IT. PATTERN FOR THIS EVENING IS PANNING OUT AS INDICATED
BY MODELS YESTERDAY. FORMER CUT-OFF 5H LOW OFF S CA IS NOW S/W
MOVING NE ACROSS NW NEW MEXICO. ASSOCIATED 25H JET MAX ON N SIDE OF
SUB-TROPICAL JET MOVING NE ACROSS S NEW MEXICO. E CO AND W KS SOON
TO BE UNDER FRONT LEFT. ETA SHOWS THETAE RIDGE LYING N-S ALONG KS/CO
BORDER THIS EVENING AND NEARLY SIMULTANEOUSLY CO-LOCATED 70H
UVV/POS-OMEGA MAX. MOD TO HI PWS...RAPIDLY DECAYING CIN...INCREASING
LIS AND SUFFICIENT MOISTURE ALL SEEM TO IMPLY A VERY LIVELY AND
STORMY EVENING INTO LATE NIGHT OVER THE TRI-STATE AREA. APPEARS 5H
TROUGH TO PASS OVERHEAD SHORTLY AFTER MIDNIGHT SO THINK WEATHER WILL
PROGRESS STEADILY FROM W-E ACROSS CWA AND BE CLEAR OF CWA BY
DAYBREAK. POSSIBLY SOME LEFT IN E SO WILL RETAIN 20 POPS THERE FOR
EARLY 2ND PD.

WEAKER VORT TO COME INTO CWA FROM S/W LATE THU MAY TRIGGER A FEW
TSTMS BUT EXPECT MOSTLY A NON-WEATHER EVENTFUL EVENING THU. UPPER
MAJOR TROUGH OVER INTER-MT AREA REDEEPENS THU NIGHT-FRI FROM STRONG
VORT MAX MOVING DOWN WEST COAST. AT SAME TIME RIDGE BUILDS OVER CEN
US. RESULT SHOULD BE INCREASING HEAT LATE THU/FRI OVER CWA WITH
MINIMAL CLOUDINESS.

BRIEFLY IN EXTENDED VORT MAX MOVES NE OUT OF WESTERN TROUGH INTO CEN
PLAINS LATE SAT AND LOOKS LIKE POTENTIAL NEXT SEVERE WX EVENT AFTER
TONIGHT. THEN PDS OF SCT TSTMS AND NEAR NORMAL TEMPS APPLY FOR REST
OF EXTENDED.

.GLD...NONE.

RJC

In the hours before

Special weather statement, Jun 2, 5:24 PM MDT, 1 hour 40 minutes before
COZ092-KSZ041-042-030600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
524 PM MDT WED JUN 2 1999

...A TORNADO WATCH IS IN EFFECT UNTIL MIDNIGHT MDT (1 AM CDT) FOR
GREELEY AND WICHITA COUNTIES IN KANSAS AND CHEYENNE COUNTY IN
COLORADO...

THUNDERSTORMS ARE DEVELOPING OVER SOUTHEAST COLORADO AND EXTREME
SOUTHWEST KANSAS TONIGHT AND WILL MOVE INTO WEST CENTRAL KANSAS.
CONDITIONS ARE FAVORABLE FOR TORNADOES TO DEVELOP.  ALSO...LARGE HAIL
UP TO 2 INCHES IN DIAMETER AND WIND GUSTS OF 70 MPH ARE POSSIBLE WITH
THE STRONGER STORMS.

TRIBUNE...LEOTI...SELKIRK...MARIENTHAL...LYDIA...HORACE...CHEYENNE
WELLS...AND KIT CARSON ARE TOWNS INCLUDED IN THIS WATCH.

NOW IS THE TIME TO REVIEW YOUR PLANS FOR SHELTER IN THE EVENT A
WARNING IS ISSUED.  THE SAFEST PLACE IS A BASEMENT UNDER A STURDY
PIECE OF FURNITURE.  IF NO BASEMENT IS AVAILABLE...A SMALL INTERIOR
ROOM IS THE BEST PLACE.  PUT AS MANY WALLS BETWEEN YOU AND THE
OUTSIDE AS POSSIBLE.

ENTWISTLE
Special weather statement, Jun 2, 5:24 PM MDT, 1 hour 40 minutes before
COZ092-KSZ041-042-030600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
524 PM MDT WED JUN 2 1999

...A TORNADO WATCH IS IN EFFECT UNTIL MIDNIGHT MDT (1 AM CDT) FOR
GREELEY AND WICHITA COUNTIES IN KANSAS AND CHEYENNE COUNTY IN
COLORADO...

THUNDERSTORMS ARE DEVELOPING OVER SOUTHEAST COLORADO AND EXTREME
SOUTHWEST KANSAS TONIGHT AND WILL MOVE INTO WEST CENTRAL KANSAS.
CONDITIONS ARE FAVORABLE FOR TORNADOES TO DEVELOP.  ALSO...LARGE HAIL
UP TO 2 INCHES IN DIAMETER AND WIND GUSTS OF 70 MPH ARE POSSIBLE WITH
THE STRONGER STORMS.

TRIBUNE...LEOTI...SELKIRK...MARIENTHAL...LYDIA...HORACE...CHEYENNE
WELLS...AND KIT CARSON ARE TOWNS INCLUDED IN THIS WATCH.

NOW IS THE TIME TO REVIEW YOUR PLANS FOR SHELTER IN THE EVENT A
WARNING IS ISSUED.  THE SAFEST PLACE IS A BASEMENT UNDER A STURDY
PIECE OF FURNITURE.  IF NO BASEMENT IS AVAILABLE...A SMALL INTERIOR
ROOM IS THE BEST PLACE.  PUT AS MANY WALLS BETWEEN YOU AND THE
OUTSIDE AS POSSIBLE.

ENTWISTLE
Local storm report, Jun 2, 5:59 PM MDT, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
559 PM MDT WED JUN 02 1999

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

0555 PM    JOES                      CO    .88 INCH HAIL
06/02/99   YUMA

SULLIVAN
Local storm report, Jun 2, 5:59 PM MDT, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
559 PM MDT WED JUN 02 1999

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

0555 PM    JOES                      CO    .88 INCH HAIL
06/02/99   YUMA

SULLIVAN
Local storm report, Jun 2, 6:54 PM MDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
654 PM MDT WED JUN 02 1999

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

0650 PM    9 SE YUMA                 CO    .75 INCH HAIL
06/02/99   YUMA

SULLIVAN
Local storm report, Jun 2, 6:54 PM MDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
654 PM MDT WED JUN 02 1999

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

0650 PM    9 SE YUMA                 CO    .75 INCH HAIL
06/02/99   YUMA

SULLIVAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 6:39 PM MDTSevere Thunderstorm WarningGLDYuma51 min
Jun 2, 7:37 PM MDTTornado WarningGLDYuma33 min
Jun 2, 8:10 PM MDTSevere Thunderstorm WarningGLDYuma35 min

Nearby

Tornado Warnings in Colorado, 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.