Alert archive / Colorado / Tornado Warnings in 2011

Tornado Warning 31, NWS Goodland, KS

June 19, 2011Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Jun 19, 2011, 8:37 PM MDT for Yuma County, Colorado. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 19, 2011, 8:37 PM MDT (02:37 UTC)
Expired
Jun 19, 2011, 9:15 PM MDT
In force
38 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon

County Yuma County, CO

The radar

The Goodland radar (KGLD), 118 km from the middle of the area, began a volume at 02:40 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 19, 8:40 PM MDTHAIL 1.758 N Wauneta, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 19, 2:04 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.6 hours before the alert went out and 108 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 2011-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 874 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2011-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
874 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1618 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

146 
WFUS53 KGLD 200237
TORGLD
COC125-200315-
/O.NEW.KGLD.TO.W.0031.110620T0237Z-110620T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
837 PM MDT SUN JUN 19 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 915 PM MDT

* AT 836 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES NORTH OF WAUNETA...AND WAS MOVING EAST AT
  35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALVIN.

THIS INCLUDES HIGHWAY 385 BETWEEN MILE MARKERS 258 AND 269.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4044 10204 4035 10204 4029 10205 4028 10205
      4027 10242 4044 10244 4045 10205
TIME...MOT...LOC 0238Z 265DEG 30KT 4038 10226
HAIL 1.25IN
$$

024
2 follow-up statements
736 
WWUS53 KGLD 200250
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
850 PM MDT SUN JUN 19 2011

COC125-200315-
/O.CON.KGLD.TO.W.0031.000000T0000Z-110620T0315Z/
YUMA CO-
850 PM MDT SUN JUN 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN YUMA COUNTY
UNTIL 915 PM MDT...

AT 847 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTHWEST OF ALVIN...AND WAS MOVING EAST AT
35 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALVIN.

THIS INCLUDES HIGHWAY 385 BETWEEN MILE MARKERS 258 AND 269.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4043 10204 4035 10204 4035 10205 4032 10204
      4028 10205 4027 10234 4044 10239 4045 10209
      4045 10205
TIME...MOT...LOC 0250Z 265DEG 30KT 4039 10213
HAIL 1.00IN
$$

024
952 
WWUS53 KGLD 200307
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
907 PM MDT SUN JUN 19 2011

COC125-200317-
/O.EXP.KGLD.TO.W.0031.000000T0000Z-110620T0315Z/
YUMA CO-
907 PM MDT SUN JUN 19 2011

...THE TORNADO WARNING FOR NORTHEASTERN YUMA COUNTY WILL EXPIRE AT
915 PM MDT/1015 PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4043 10204 4035 10204 4035 10205 4032 10204
      4028 10205 4027 10234 4044 10239 4045 10209
      4045 10205
TIME...MOT...LOC 0307Z 265DEG 30KT 4040 10194
$$

024

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:48 PM MDTTornado WarningGLDYuma57 min
Jun 19, 10:37 PM MDTSevere Thunderstorm WarningGLDYuma53 min
Jun 19, 11:20 PM MDTSevere Thunderstorm WarningGLDYuma55 min
Jun 20, 2:48 AM MDTWind AdvisoryGLDCheyenne, Kit Carson, Yuma23 hr
Jun 20, 2:56 AM MDTFlash Flood WatchGLDYuma17 hr
Jun 20, 4:34 AM MDTSevere Thunderstorm WarningGLDCheyenne41 min
Jun 20, 6:26 AM MDTSevere Thunderstorm WarningGLDCheyenne64 min
Jun 20, 7:19 AM MDTSevere Thunderstorm WarningGLDCheyenne56 min

Nearby

Tornado Warnings in Colorado, 2011Every tornado warning in 2011Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.