Alert archive / Colorado / Tornado Warnings in 2000

Tornado Warning 21, NWS Goodland, KS

July 21, 2000Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Jul 21, 2000, 6:29 PM MDT for Yuma County, Colorado. It was in force for 46 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: Jul 21, 2000, 6:29 PM MDT (00:29 UTC)
Expired: Jul 21, 2000, 7:15 PM MDT
In force: 46 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 00:31 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
Jul 21, 6:45 PM MDT	Hail 0.75	Kirk, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 21, 2:15 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.5 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-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: 941 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 3104 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -69 m²/s²
0-3 km storm-relative helicity: -19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.0

Open this sounding in Storm Lab

The text

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

371 
WFUS53 KGLD 220029
TORGLD
COC125-220115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
629 PM MDT FRI JUL 21 2000

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN YUMA COUNTY IN NORTHEAST COLORADO

* UNTIL 715 PM MDT

* AT 550 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD   
  12 MILES SOUTH OF YUMA...MOVING SOUTH AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  JOES AROUND 645 PM MDT
  KIRK AROUND 655 PM MDT

ANOTHER LOCATION IN THIS WARNING IS...HEARTSTRONG.

THIS IS A DANGEROUS STORM SITUATION DO NOT RUN OUTSIDE TO FIND THE
TORNADO...SEEK SHELTER IMMEDIATELY. MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR. USE BLANKETS...PILLOWS...OR CUSHIONS TO COVER YOUR BODY. AVOID
WINDOWS. ABANDON CARS AND MOBILE HOMES FOR REINFORCED BUILDINGS.

$$

SKIPPER

LAT...LON 4004 10243 4003 10278 3959 10275 3958 10240

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 7:07 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	53 min
Jul 21, 7:14 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	31 min
Jul 21, 7:59 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	61 min
Jul 21, 8:40 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	65 min
Jul 21, 8:58 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	47 min
Jul 22, 3:24 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	66 min
Jul 22, 3:54 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	66 min
Jul 22, 4:32 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	58 min
Jul 22, 5:25 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	65 min
Jul 22, 5:47 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	58 min

Nearby

Tornado Warnings in Colorado, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.