Alert archive / Nebraska / Tornado Watches in 2015

Tornado Watch 538

November 16, 201515 counties in Kansas; 16 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Nov 16, 2015, 3:34 PM CST for 15 counties in Kansas; 16 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Nov 16, 2015, 3:34 PM CST (21:34 UTC)
Expired
Nov 16, 2015, 10:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 31 counties

Cheyenne County, KS, Decatur County, KS, Gove County, KS, Graham County, KS, Greeley County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Blaine County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Kearney County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 55 km from the middle of the area, began a volume at 21:38 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

31 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Nov 16, 4:03 PM CSTSevere Thunderstorm WarningGLDGreeley, Wallace42 min
Nov 16, 4:24 PM CSTSevere Thunderstorm WarningGLDGreeley, Logan, Wallace, Wichita51 min
Nov 16, 4:40 PM CSTSevere Thunderstorm WarningGLDGove, Logan50 min
Nov 16, 4:42 PM CSTSevere Thunderstorm WarningGLDDecatur, Rawlins48 min
Nov 16, 4:52 PM CSTSevere Thunderstorm WarningGLDCheyenne, Sherman38 min
Nov 16, 5:07 PM CSTSevere Thunderstorm WarningGLDLogan, Thomas38 min
Nov 16, 5:17 PM CSTTornado WarningGLDGove, Sheridan28 min
Nov 16, 5:27 PM CSTSevere Thunderstorm WarningGLDCheyenne, Rawlins21 min
Nov 16, 5:38 PM CSTSevere Thunderstorm WarningGLDDecatur, Rawlins, Sheridan, Thomas52 min
Nov 16, 5:41 PM CSTSevere Thunderstorm WarningLBFFrontier49 min
Nov 16, 5:43 PM CSTTornado Warning Tornado observedGLDSheridan32 min
Nov 16, 5:45 PM CSTSevere Thunderstorm WarningGLDSheridan, Thomas45 min
Nov 16, 6:08 PM CSTTornado WarningGLDGraham, Norton, Sheridan37 min
Nov 16, 6:17 PM CSTSevere Thunderstorm WarningGIDDawson, Gosper43 min
Nov 16, 6:20 PM CSTSevere Thunderstorm WarningGLDDecatur, Norton, Sheridan40 min
Nov 16, 6:30 PM CSTSevere Thunderstorm WarningGLDDecatur32 min
Nov 16, 6:38 PM CSTSevere Thunderstorm WarningGLDGove, Logan52 min
Nov 16, 6:38 PM CSTTornado WarningGLDNorton37 min
Nov 16, 6:48 PM CSTTornado WarningGLDGove42 min
Nov 16, 6:54 PM CSTSevere Thunderstorm WarningGIDFurnas40 min
Nov 16, 6:59 PM CSTSevere Thunderstorm WarningGLDDecatur, Graham, Norton, Sheridan31 min
Nov 16, 7:08 PM CSTSevere Thunderstorm WarningGLDGove, Logan, Sheridan52 min
Nov 16, 7:10 PM CSTTornado WarningGLDGove, Sheridan35 min
Nov 16, 7:11 PM CSTTornado WarningGLDNorton34 min
Nov 16, 7:21 PM CSTTornado WarningGIDFurnas, Harlan39 min
Nov 16, 7:36 PM CSTTornado WarningGLDGove, Sheridan27 min
Nov 16, 7:50 PM CSTTornado WarningGLDDecatur, Graham, Norton, Sheridan25 min
Nov 16, 7:52 PM CSTSevere Thunderstorm WarningGLDGove30 min
Nov 16, 7:55 PM CSTTornado WarningGIDFurnas, Gosper, Harlan, Phelps31 min
Nov 16, 8:00 PM CSTSevere Thunderstorm WarningGLDGraham, Sheridan30 min
Nov 16, 8:10 PM CSTSevere Thunderstorm WarningGLDDecatur, Graham, Norton, Sheridan20 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.6 hours before the alert went out and 189 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 2015-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2015-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 230 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1361 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
230 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

495 
WWUS20 KWNS 162132
SEL8  
SPC WW 162132
KSZ000-NEZ000-170400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 538
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CST MON NOV 16 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTHWEST KANSAS
  SOUTHWEST NEBRASKA

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 335 PM UNTIL
  1000 PM CST.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE

SUMMARY...THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY FROM
SOUTH TO NORTH ACROSS THE WATCH AREA THIS AFTERNOON THROUGH EVENING.
THE MOST INTENSE STORMS WILL BE CAPABLE OF A COUPLE OF
TORNADOES...LOCALLY DAMAGING OUTFLOW WINDS AND SEVERE HAIL.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 90 MILES SOUTH SOUTHEAST OF
GOODLAND KANSAS TO 35 MILES NORTH OF MCCOOK NEBRASKA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 537...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 22040.


...MEAD

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 16, 12:44 PM CSTMesoscale DiscussionSPCFinney, Ford, Grant, Gray, Hamilton, Haskell and 9 more3 hr
Nov 16, 1:00 PM CSTTornado WatchSPCBarber, Clark, Comanche, Edwards, Ellis, Finney and 21 more8 hr
Nov 16, 1:58 PM CSTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more3 hr
Nov 16, 3:51 PM CSTMesoscale DiscussionSPCClark, Finney, Ford, Grant, Gray, Hamilton and 11 more114 min
Nov 16, 5:20 PM CSTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more115 min
Nov 16, 5:56 PM CSTMesoscale DiscussionSPCClark, Comanche, Meade, Seward94 min

Nearby

Tornado Watches in Nebraska, 2015Tornado Watches in Kansas, 2015Every tornado watch in 2015

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.