Alert archive / Colorado / Tornado Warnings in 2007

Tornado Warning 28, NWS Goodland, KS

April 23, 2007Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Apr 23, 2007, 8:34 PM MDT for Yuma County, Colorado. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 23, 2007, 8:34 PM MDT (02:34 UTC)
Expired: Apr 23, 2007, 9:00 PM MDT
In force: 26 min
Issued by: NWS Goodland, KS
Area: Counties, with a storm outline in the text

County Yuma County, CO

The radar

The Goodland radar (KGLD), 127 km from the middle of the area, began a volume at 02:36 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
Apr 23, 2:10 PM MDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.6 hours before the alert went out and 65 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: 351 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KGLD 240235
TORGLD
COC125-240300-
/O.NEW.KGLD.TO.W.0028.070424T0234Z-070424T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
834 PM MDT MON APR 23 2007

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 900 PM MDT

* AT 834 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES SOUTH OF
  CLARKVILLE...OR ABOUT 30 MILES EAST OF AKRON...MOVING NORTHEAST    
  AT 50 MPH. THIS REPLACES THE PREVIOUS SEVERE THUNDERSTORM WARNING  
  ISSUED FOR NORTHWESTERN YUMA COUNTY THAT WAS IN EFFECT UNTIL 9 PM  
  MDT.

* THE TORNADO WILL BE NEAR...
  CLARKVILLE AROUND 840 PM MDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT TUESDAY MORNING
FOR NORTHEASTERN COLORADO.

LAT...LON 4012 10279 4012 10251 4043 10238 4043 10276

$$

KRAUSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 7:30 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	60 min
Apr 23, 8:00 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	60 min
Apr 23, 8:08 PM MDT	Tornado Warning	GLD	Yuma	52 min
Apr 23, 8:15 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	45 min
Apr 23, 9:02 PM MDT	Flash Flood Warning	GLD	Yuma	58 min
Apr 23, 9:15 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	60 min
Apr 23, 9:18 PM MDT	Tornado Warning	GLD	Yuma	42 min
Apr 23, 9:21 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	54 min
Apr 23, 9:32 PM MDT	Tornado Warning	GLD	Yuma	58 min
Apr 23, 10:28 PM MDT	Tornado Warning	GLD	Yuma	47 min
Apr 23, 11:02 PM MDT	Flash Flood Warning	GLD	Yuma	3 hr
Apr 24, 8:50 AM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	55 min
Apr 24, 9:19 AM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	40 min
Apr 24, 10:01 AM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	23 min
Apr 24, 10:33 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	57 min
Apr 24, 11:31 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	29 min
Apr 24, 12:14 PM MDT	Tornado Warning	GLD	Cheyenne	31 min
Apr 24, 12:55 PM MDT	Tornado Warning	GLD	Cheyenne	50 min
Apr 24, 1:37 PM MDT	Tornado Warning	GLD	Cheyenne, Kit Carson	53 min
Apr 24, 1:48 PM MDT	Tornado Warning	GLD	Cheyenne, Kit Carson	57 min
Apr 24, 2:40 PM MDT	Tornado Warning	GLD	Kit Carson	65 min
Apr 24, 3:27 PM MDT	Tornado Warning	GLD	Cheyenne	63 min
Apr 24, 4:22 PM MDT	Tornado Warning	GLD	Cheyenne	40 min
Apr 24, 4:56 PM MDT	Flash Flood Warning	GLD	Kit Carson	3 hr

Nearby

Tornado Warnings in Colorado, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.