Alert archive / Kansas / Special Weather Statements in 2023

Special Weather Statement, NWS Topeka, KS

August 6, 2023Douglas County, Franklin County, Jefferson County, Kansas

NWS Topeka, KS issued this special weather statement at Aug 6, 2023, 1:00 AM CDT for Douglas County, Franklin County, Jefferson County, Kansas. It was in force for 30 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: Aug 6, 2023, 1:00 AM CDT (06:00 UTC)
Expired: Aug 6, 2023, 1:30 AM CDT
In force: 30 min
Issued by: NWS Topeka, KS
Hail: 0.00 in
Wind: 55

Counties Douglas County, KS, Franklin County, KS, Jefferson County, KS

The radar

The Topeka radar (KTWX), 81 km from the middle of the area, began a volume at 06:03 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

Omaha, NE (KOAX), launched 00:00Z, 6.0 hours before the alert went out and 286 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1774 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1305 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 7.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 12:40 AM CDT, 20 minutes earlier.

Area forecast discussion, Aug 6, 12:40 AM CDT, 20 minutes before

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Hazardous weather outlook, Aug 5, 2:49 PM CDT, 10 hours 11 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
249 PM CDT Sat Aug 5 2023

KSZ008>012-020>024-026-034>040-054>056-058-059-062000-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
249 PM CDT Sat Aug 5 2023

This Hazardous Weather Outlook is for central Kansas, east central
Kansas, north central Kansas and northeast Kansas.

.DAY ONE...This afternoon and tonight.

Heat index values will approach 100 degrees mainly across eastern
portions of the area this afternoon.

An isolated storm or two could pose a marginally severe wind and
hail threat across areas in central and east central Kansas this
evening, if storms develop at all.

Scattered severe storms appear possible into the overnight period
along a frontal boundary coming in from the northwest. Damaging
winds and large hail will be the main hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

More detailed information can be found at:
www.weather.gov/media/top/DssPacket.pdf

Drake

In the hours before

Local storm report, Aug 5, 11:38 PM CDT, 1 hour 22 minutes before

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Local storm report, Aug 6, 12:03 AM CDT, 57 minutes before

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Special weather statement, Aug 6, 12:06 AM CDT, 54 minutes before

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Special weather statement, Aug 6, 12:32 AM CDT, 28 minutes before

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Local storm report, Aug 6, 12:57 AM CDT, 3 minutes before

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Special weather statement, Aug 6, 1:00 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 9:55 PM CDT	Special Weather Statement	TOP	Republic	35 min
Aug 5, 10:14 PM CDT	Special Weather Statement	TOP	Cloud	46 min
Aug 5, 10:15 PM CDT	Special Weather Statement	TOP	Washington	45 min
Aug 5, 10:41 PM CDT	Special Weather Statement	TOP	Washington	49 min
Aug 5, 11:10 PM CDT	Special Weather Statement	TOP	Clay, Riley, Washington	35 min
Aug 5, 11:18 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Marshall, Pottawatomie, Riley, Washington	27 min
Aug 5, 11:41 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha, Pottawatomie, Riley	14 min
Aug 6, 12:06 AM CDT	Special Weather Statement	TOP	Brown, Jackson, Nemaha, Shawnee, Wabaunsee	24 min
Aug 6, 12:32 AM CDT	Special Weather Statement	TOP	Brown, Douglas, Jefferson, Lyon, Osage, Shawnee	28 min
Aug 6, 12:52 AM CDT	Severe Thunderstorm Warning	TOP	Brown	23 min
Aug 6, 12:57 AM CDT	Severe Thunderstorm Warning	TOP	Coffey, Lyon, Osage	33 min
Aug 6, 1:18 AM CDT	Special Weather Statement	TOP	Anderson, Coffey, Franklin	42 min

Nearby

Special Weather Statements in Kansas, 2023 Every special weather statement in 2023

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.