Alert archive / Kansas / Severe Thunderstorm Watches in 2019

Severe Thunderstorm Watch 615

August 23, 201911 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at Aug 23, 2019, 6:48 PM CDT for 11 counties in Kansas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Aug 23, 2019, 6:48 PM CDT (23:48 UTC)
Expired
Aug 23, 2019, 10:05 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
65 kt

Counties Finney County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS

The radar

The Dodge City radar (KDDC), 110 km from the middle of the area, began a volume at 23:52 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
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Aug 23, 6:54 PM CDTSevere Thunderstorm WarningDDCHaskell38 min
Aug 23, 6:55 PM CDTSevere Thunderstorm WarningDDCMeade, Seward65 min
Aug 23, 7:12 PM CDTSevere Thunderstorm WarningDDCFinney, Grant, Haskell, Kearny48 min
Aug 23, 8:49 PM CDTSevere Thunderstorm WarningDDCGrant, Haskell, Seward, Stevens41 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, 11.8 hours before the alert went out and 116 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 2019-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 922 joules per kilogram.LCLLFCEL10008507005003002001001 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 2019-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939Sfc1 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
922 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 23, 3:38 AM CDTMesoscale DiscussionSPCJewell2 hr
Aug 23, 2:55 PM CDTMesoscale DiscussionSPCGreeley, Hamilton, Morton, Stanton, Wallace110 min
Aug 23, 3:34 PM CDTSevere Thunderstorm WatchSPCCheyenne, Greeley, Hamilton, Morton, Sherman, Stanton and 2 more7 hr
Aug 23, 5:28 PM CDTMesoscale DiscussionSPCCheyenne, Grant, Greeley, Hamilton, Kearny, Morton and 5 more2 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2019Every severe thunderstorm watch in 2019

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.