Alert archive / Colorado / Tornado Warnings in 2011

Tornado Warning 8, NWS Goodland, KS

May 17, 2011Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at May 17, 2011, 7:44 PM MDT for Yuma County, Colorado. It was in force for 30 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
May 17, 2011, 7:44 PM MDT (01:44 UTC)
Expired
May 17, 2011, 8:14 PM MDT
In force
30 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon

County Yuma County, CO

The radar

The Goodland radar (KGLD), 109 km from the middle of the area, began a volume at 01:43 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.7 hours before the alert went out and 56 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 2011-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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 2011-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
26 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
1293 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-1.5

Open this sounding in Storm Lab

The text

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

035 
WFUS53 KGLD 180144
TORGLD
COC125-180230-
/O.NEW.KGLD.TO.W.0008.110518T0144Z-110518T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
744 PM MDT TUE MAY 17 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 830 PM MDT

* AT 739 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE
  DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LONE STAR
  TO 7 MILES SOUTHWEST OF COPE...AND WAS MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  YUMA...ABARR...JOES AND HEARTSTRONG.

THIS INCLUDES HIGHWAY 36 BETWEEN MILE MARKERS 181 AND 195.

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 4035 10248 3964 10252 3960 10281 4030 10280
TIME...MOT...LOC 0144Z 251DEG 27KT 4030 10279 3960 10289
HAIL <.75IN
$$

DR
3 follow-up statements
454 
WWUS53 KGLD 180155
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
755 PM MDT TUE MAY 17 2011

COC125-180230-
/O.CON.KGLD.TO.W.0008.000000T0000Z-110518T0230Z/
YUMA CO-
755 PM MDT TUE MAY 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN YUMA COUNTY
UNTIL 830 PM MDT...

AT 753 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO.  THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
SOUTHWEST OF YUMA TO COPE...AND WAS MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ABARR...YUMA...JOES AND HEARTSTRONG.

THIS INCLUDES HIGHWAY 36 BETWEEN MILE MARKERS 181 AND 195.

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 4012 10249 3964 10252 3960 10281 4017 10280
TIME...MOT...LOC 0155Z 257DEG 24KT 4008 10283 3960 10281
HAIL <.75IN
$$

ROBINSON
047 
WWUS53 KGLD 180207
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
807 PM MDT TUE MAY 17 2011

COC125-180230-
/O.CON.KGLD.TO.W.0008.000000T0000Z-110518T0230Z/
YUMA CO-
807 PM MDT TUE MAY 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN YUMA COUNTY
UNTIL 830 PM MDT...

AT 806 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO.  THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
NORTH OF ABARR TO COPE...AND WAS MOVING EAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  ABARR...JOES AND HEARTSTRONG.

THIS INCLUDES HIGHWAY 36 BETWEEN MILE MARKERS 181 AND 195.

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 4002 10250 3964 10252 3960 10281 3999 10280
TIME...MOT...LOC 0208Z 267DEG 13KT 3996 10273 3961 10284
HAIL <.75IN
$$

ROBINSON
978 
WWUS53 KGLD 180214
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
814 PM MDT TUE MAY 17 2011

COC125-180224-
/O.CAN.KGLD.TO.W.0008.000000T0000Z-110518T0230Z/
YUMA CO-
814 PM MDT TUE MAY 17 2011

...THE TORNADO WARNING FOR SOUTHWESTERN YUMA COUNTY IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.

LAT...LON 4002 10250 3964 10252 3960 10281 3999 10280
TIME...MOT...LOC 0214Z 267DEG 13KT 3996 10270 3961 10281
$$

ROBINSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 6:27 PM MDTSpecial Weather StatementGLDKit Carson33 min
May 17, 6:39 PM MDTSevere Thunderstorm WarningGLDKit Carson66 min
May 17, 7:39 PM MDTSevere Thunderstorm WarningGLDKit Carson51 min
May 17, 8:12 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson63 min
May 17, 9:03 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson57 min
May 17, 9:45 PM MDTSevere Thunderstorm WarningGLDKit Carson45 min
May 17, 10:12 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.