Alert archive / Kansas / Tornado Warnings in 2017

Tornado Warning 36, NWS Goodland, KS

October 1, 2017Graham County, Norton County, Kansas

NWS Goodland, KS issued this tornado warning at Oct 1, 2017, 6:12 PM CDT for Graham County, Norton County, Kansas. It was in force for 33 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
Oct 1, 2017, 6:12 PM CDT (23:12 UTC)
Expired
Oct 1, 2017, 6:45 PM CDT
In force
33 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
3.0 in

Counties Graham County, KS, Norton County, KS

The radar

The Grand Island radar (KUEX), 142 km from the middle of the area, began a volume at 23:16 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
Oct 1, 6:30 PM CDTTORNADO6 Wnw Bogue, KSSTORM CHASER REPORTED A TORNADO ON THE GROUND FOR APPROXIMATELY ONE MINUTE. SOME TREE LIMBS DOWN. ALSO HAD 1.25 INCH HAIL.

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
Oct 1, 3:25 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 11.2 hours before the alert went out and 193 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, Dodge City, at 12:00Z on 2017-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 77 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2017-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 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
77 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
581 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

376 
WFUS53 KGLD 012312
TORGLD
KSC065-137-012345-
/O.NEW.KGLD.TO.W.0036.171001T2312Z-171001T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
612 PM CDT SUN OCT 1 2017

The National Weather Service in Goodland has issued a

* Tornado Warning for...
  Southeastern Norton County in northwestern Kansas...
  Northeastern Graham County in northwestern Kansas...

* Until 645 PM CDT
    
* At 612 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 4 miles northwest of Hill City, moving northeast at 45
  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...
  Hill City and Densmore. 

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 3941 9961 3935 9996 3947 10003 3975 9963
      3957 9963 3957 9960
TIME...MOT...LOC 2312Z 245DEG 37KT 3943 9989 

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

$$

EV
1 follow-up statement
302 
WWUS53 KGLD 012334
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
634 PM CDT SUN OCT 1 2017

KSC065-137-012345-
/O.CON.KGLD.TO.W.0036.000000T0000Z-171001T2345Z/
Norton KS-Graham KS-
634 PM CDT SUN OCT 1 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHEASTERN NORTON AND NORTHEASTERN GRAHAM COUNTIES...
    
At 633 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles north of Nicodemus, or 16 miles northeast of Hill
City, moving northeast at 45 mph.

HAZARD...Tornado and three inch hail. 

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...
Densmore.

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 3942 9982 3961 9983 3975 9963 3957 9963
      3957 9960 3944 9961
TIME...MOT...LOC 2333Z 245DEG 37KT 3952 9963 

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

$$

EV

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 4:15 PM CDTSevere Thunderstorm WarningGLDGraham, Sheridan45 min
Oct 1, 4:26 PM CDTSevere Thunderstorm WarningGLDLogan, Sheridan, Thomas49 min
Oct 1, 4:56 PM CDTSevere Thunderstorm WarningGLDDecatur, Graham, Sheridan, Thomas49 min
Oct 1, 5:43 PM CDTTornado WarningGLDGraham, Norton, Sheridan32 min
Oct 1, 5:54 PM CDTSevere Thunderstorm WarningGLDGraham, Norton66 min
Oct 1, 6:44 PM CDTSevere Thunderstorm WarningGLDGraham, Norton31 min

Nearby

Tornado 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.