Alert archive / Kansas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 203, NWS Topeka, KS

August 1, 2019Anderson County, Coffey County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Aug 1, 2019, 12:10 AM CDT for Anderson County, Coffey County, Kansas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 1, 2019, 12:10 AM CDT (05:10 UTC)
Expired
Aug 1, 2019, 1:00 AM CDT
In force
50 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Anderson County, KS, Coffey County, KS

The radar

The Topeka radar (KTWX), 106 km from the middle of the area, began a volume at 05:10 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

Topeka, KS (KTOP), launched 00:00Z, 5.2 hours before the alert went out and 87 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, Topeka, KS at 00:00Z on 2019-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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, Topeka, KS at 00:00Z on 2019-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
49 J/kg
Mixed-layer CIN
-417 J/kg
Mixed-layer LCL
1705 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
552 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 6:21 PM CDT, 5 hours 49 minutes earlier.

Area forecast discussion, Jul 31, 6:21 PM CDT, 5 hours 49 minutes before
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Hazardous weather outlook, Jul 31, 4:27 PM CDT, 7 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Topeka KS
427 PM CDT Wed Jul 31 2019

KSZ008>012-020>024-026-034>040-054>056-058-059-012130-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
427 PM CDT Wed Jul 31 2019

This hazardous weather outlook is for east central...north
central and northeast Kansas.

.DAY ONE...Tonight.

There is a chance for a few isolated strong to severe storms this
evening. The primary hazards with any stronger storms that develop
will be hail, gusty winds, and heavy rainfall. A Flash Flood Watch
has been issued for portions of northeast and east central Kansas
from midnight tonight and extending through Saturday morning.

Flooding on the Big Blue River near Blue Rapids will continue.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Additional rounds of heavy rain are forecast for Thursday night
and again Friday night. There is still some uncertainty with
where exactly the heaviest rainfall amounts will be. However,
there is the potential for upwards of 3 to 6 inches of rain across
eastern Kansas by Saturday morning, with locally higher amounts
possible. As a result, there is a concern for flash flooding and
river flooding with these forecast rainfall amounts.

There is a chance for some strong to marginally severe thunderstorms
Thursday afternoon and evening. The primary hazards with any
stronger storms will be hail and gusty winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at...
http://www.weather.gov/top/sitrep

In the hours before

Local storm report, Jul 31, 11:11 PM CDT, 59 minutes before
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Local storm report, Jul 31, 11:15 PM CDT, 55 minutes before
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Special weather statement, Jul 31, 11:29 PM CDT, 41 minutes before
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Special weather statement, Jul 31, 11:44 PM CDT, 26 minutes before
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Local storm report, Jul 31, 11:45 PM CDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1145 PM CDT WED JUL 31 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 PM     HAIL             6 SW TOPEKA             39.00N 95.76W
07/31/2019  E1.00 INCH       SHAWNEE            KS   PUBLIC

            NEAR 37TH AND WANAMAKER ROAD VIA SOCIAL MEDIA.

&&

JW
Local storm report, Jul 31, 11:46 PM CDT, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1146 PM CDT WED JUL 31 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1110 PM     HAIL             6 W COLONY              38.07N 95.48W
07/31/2019  M1.25 INCH       ANDERSON           KS   PUBLIC

            FROM SOCIAL MEDIA

&&

WOLTERS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 8:45 PM CDTSpecial Weather StatementTOPDouglas30 min
Jul 31, 9:18 PM CDTSpecial Weather StatementTOPDouglas27 min
Jul 31, 9:36 PM CDTSpecial Weather StatementTOPDouglas, Franklin24 min
Jul 31, 9:41 PM CDTAreal Flood AdvisoryTOPDouglas, Jefferson3 hr
Jul 31, 10:03 PM CDTSevere Thunderstorm WarningTOPAnderson, Franklin42 min
Jul 31, 10:26 PM CDTSpecial Weather StatementTOPShawnee34 min
Jul 31, 10:30 PM CDTSevere Thunderstorm WarningTOPAnderson45 min
Jul 31, 10:45 PM CDTSevere Thunderstorm WarningTOPDouglas, Osage, Shawnee45 min
Jul 31, 11:07 PM CDTSevere Thunderstorm WarningTOPDouglas, Franklin, Osage38 min
Jul 31, 11:29 PM CDTSpecial Weather StatementTOPFranklin31 min
Jul 31, 11:32 PM CDTAreal Flood AdvisoryTOPFranklin3 hr
Jul 31, 11:44 PM CDTSpecial Weather StatementTOPFranklin, Osage31 min
Aug 1, 12:59 AM CDTAreal Flood AdvisoryTOPAnderson3 hr
Aug 1, 1:20 AM CDTSpecial Weather StatementTOPJefferson25 min
Aug 1, 1:40 AM CDTFlash Flood WarningTOPDouglas, Jackson, Jefferson5 hr
Aug 1, 1:58 AM CDTSpecial Weather StatementTOPDouglas32 min
Aug 1, 2:03 AM CDTSpecial Weather StatementTOPFranklin27 min
Aug 1, 2:13 AM CDTSevere Thunderstorm WarningTOPDouglas, Osage, Shawnee36 min
Aug 1, 2:14 AM CDTFlash Flood WarningTOPFranklin4 hr
Aug 1, 2:48 AM CDTSpecial Weather StatementTOPFranklin27 min
Aug 1, 2:52 AM CDTSpecial Weather StatementTOPDouglas23 min
Aug 1, 3:02 AM CDTSpecial Weather StatementTOPJefferson28 min
Aug 1, 3:16 AM CDTSpecial Weather StatementTOPDouglas29 min
Aug 1, 3:33 AM CDTFlash Flood WarningTOPAnderson3 hr
Aug 1, 4:09 AM CDTSpecial Weather StatementTOPDouglas36 min
Aug 1, 6:12 AM CDTFlash Flood WarningTOPAnderson, Douglas, Franklin, Jefferson10 hr
Aug 1, 6:56 AM CDTRiver Flood WarningTOPDouglas35 hr
Aug 1, 6:58 AM CDTRiver Flood WarningTOPFranklin37 hr
Aug 1, 6:58 AM CDTRiver Flood WarningTOPAnderson37 hr
Aug 1, 8:50 AM CDTRiver Flood WarningTOPFranklin, Osage44 hr
Aug 1, 8:50 AM CDTRiver Flood WarningTOPFranklin58 hr
Aug 1, 1:01 PM CDTAreal Flood WarningTOPDouglas3 hr
Aug 1, 3:57 PM CDTAreal Flood WarningTOPFranklin4 hr

Nearby

Severe Thunderstorm Warnings in Kansas, 2019Every severe thunderstorm warning 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.