Alert archive / Colorado / Tornado Warnings in 2017

Tornado Warning 5, NWS Goodland, KS

May 25, 2017Yuma County, Colorado; Cheyenne County, Kansas

NWS Goodland, KS issued this tornado warning at May 25, 2017, 3:39 PM MDT for Yuma County, Colorado; Cheyenne County, Kansas. It was in force for 36 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 25, 2017, 3:39 PM MDT (21:39 UTC)
Expired
May 25, 2017, 4:15 PM MDT
In force
36 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
3.0 in

Counties Yuma County, CO, Cheyenne County, KS

The radar

The Goodland radar (KGLD), 43 km from the middle of the area, began a volume at 21:43 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 watch it was issued in

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

IssuedProductOfficeLasted
May 25, 1:46 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.7 hours before the alert went out and 106 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 12:00Z on 2017-05-25Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2017-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
-269 J/kg
Mixed-layer LCL
2423 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

502 
WFUS53 KGLD 252139
TORGLD
COC125-KSC023-252215-
/O.NEW.KGLD.TO.W.0005.170525T2139Z-170525T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
339 PM MDT THU MAY 25 2017

The National Weather Service in Goodland has issued a

* Tornado Warning for...
  Southeastern Yuma County in northeastern Colorado...
  Southwestern Cheyenne County in northwestern Kansas...

* Until 415 PM MDT/515 PM CDT/
    
* At 339 PM MDT/439 PM CDT/, a severe thunderstorm capable of
  producing a tornado was located 5 miles northeast of Bonny
  Reservoir, moving east at 30 mph.

  HAZARD...Tornado and hail up to three inches in diameter. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations impacted include...
  Bonny Reservoir and Hale. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3976 10187 3957 10192 3957 10202 3961 10225
      3977 10215
TIME...MOT...LOC 2139Z 278DEG 28KT 3968 10212 

TORNADO...RADAR INDICATED
HAIL...3.00IN

$$

TL/DR
1 follow-up statement
326 
WWUS53 KGLD 252214
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
414 PM MDT THU MAY 25 2017

COC125-KSC023-252223-
/O.EXP.KGLD.TO.W.0005.000000T0000Z-170525T2215Z/
Yuma CO-Cheyenne KS-
414 PM MDT THU MAY 25 2017

...THE TORNADO WARNING FOR SOUTHEASTERN YUMA COUNTY IN NORTHEASTERN
COLORADO AND SOUTHWESTERN CHEYENNE COUNTIES IN NORTHWESTERN KANSAS
WILL EXPIRE AT 415 PM MDT/515 PM CDT/...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.  However small hail
and gusty winds are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 900 PM MDT/1000
PM CDT/ for northeastern Colorado...and northwestern Kansas.

Remember, a Severe Thunderstorm Warning still remains in effect for
Cheyenne county, Kansas.

LAT...LON 3976 10187 3957 10192 3957 10202 3961 10225
      3977 10215
TIME...MOT...LOC 2213Z 278DEG 28KT 3964 10180 

$$

TL/DR

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 1:53 PM MDTSevere Thunderstorm WarningGLDYuma52 min
May 25, 2:42 PM MDTSevere Thunderstorm WarningGLDYuma48 min
May 25, 2:46 PM MDTSpecial Weather StatementGLDKit Carson14 min
May 25, 2:59 PM MDTSpecial Weather StatementGLDKit Carson16 min
May 25, 3:18 PM MDTSevere Thunderstorm WarningGLDYuma42 min
May 25, 3:23 PM MDTSpecial Weather StatementGLDKit Carson22 min
May 25, 3:36 PM MDTSevere Thunderstorm WarningGLDYuma24 min
May 25, 3:42 PM MDTSevere Thunderstorm WarningGLDKit Carson48 min
May 25, 4:03 PM MDTSevere Thunderstorm WarningGLDSherman42 min
May 25, 4:11 PM MDTSevere Thunderstorm WarningGLDCheyenne, Sherman34 min
May 25, 4:26 PM MDTSevere Thunderstorm WarningGLDSherman, Wallace19 min
May 25, 4:40 PM MDTSevere Thunderstorm WarningGLDLogan, Sherman, Thomas, Wallace50 min
May 25, 4:43 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins47 min
May 25, 5:07 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Thomas38 min
May 25, 5:21 PM MDTTornado WarningGLDGove, Logan, Sheridan, Thomas24 min
May 25, 5:39 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan, Thomas51 min
May 25, 5:42 PM MDTTornado WarningGLDGove, Logan, Sheridan, Thomas17 min
May 25, 5:55 PM MDTSevere Thunderstorm WarningGLDGove35 min

Nearby

Tornado Warnings in Colorado, 2017Tornado Warnings in Kansas, 2017Every tornado warning in 2017Tornadoes in 2017

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.