Alert archive / Kansas / Special Weather Statements in 2019

Special Weather Statement, NWS Topeka, KS

August 7, 2019Anderson County, Kansas

NWS Topeka, KS issued this special weather statement at Aug 7, 2019, 5:05 PM CDT for Anderson County, Kansas. It was in force for 55 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 7, 2019, 5:05 PM CDT (22:05 UTC)
Expired: Aug 7, 2019, 6:00 PM CDT
In force: 55 min
Issued by: NWS Topeka, KS

County Anderson County, KS

The radar

The Topeka radar (KTWX), 108 km from the middle of the area, began a volume at 22:08 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

Springfield, MO (KSGF), launched 12:00Z, 10.1 hours before the alert went out and 212 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: 632 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1611 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 7, 4:05 PM CDT, 1 hour earlier.

Area forecast discussion, Aug 7, 4:05 PM CDT, 1 hour before

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Hazardous weather outlook, Aug 7, 3:11 PM CDT, 1 hour 54 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
311 PM CDT Wed Aug 7 2019

KSZ008>012-020>024-026-034>040-054>056-058-059-082015-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
311 PM CDT Wed Aug 7 2019

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

.DAY ONE...This Afternoon and tonight.

Thunderstorms are expected to redevelop overnight tonight and
continue into Thursday morning. This redevelopment is likely to
occur around or soon after midnight tonight. The thunderstorms
could be capable of producing damaging wind gusts and hail
initially. The biggest hazard will likely end up being flash
flooding and river flooding. The forecast is for additional rain
amounts of 2 to 4 inches with locally higher amounts possibly up
to 6 inches, which would cause flash flooding. Therefore a flash
flood watch has been posted for east central, and parts of
northeast and north central Kansas from this evening through noon
on Thursday.

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

Thunderstorms with periods of heavy rain are in the forecast
through Saturday. While isolated severe weather is difficult to
rule out, new rounds of heavy rain could enhance the risk for
flash flooding.

.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, Aug 7, 11:44 AM CDT, 5 hours 21 minutes before

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Local storm report, Aug 7, 2:25 PM CDT, 2 hours 40 minutes before

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Local storm report, Aug 7, 2:26 PM CDT, 2 hours 39 minutes before

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Local storm report, Aug 7, 4:49 PM CDT, 16 minutes before

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Special weather statement, Aug 7, 5:05 PM 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 7, 3:04 AM CDT	Flash Flood Watch	TOP	Anderson, Clay, Cloud, Coffey, Dickinson, Douglas and 15 more	32 hr
Aug 7, 3:51 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic, Washington	39 min
Aug 7, 4:29 AM CDT	Special Weather Statement	TOP	Cloud, Republic, Washington	31 min
Aug 7, 4:44 AM CDT	Special Weather Statement	TOP	Marshall, Nemaha	31 min
Aug 7, 5:00 AM CDT	Special Weather Statement	TOP	Clay, Cloud, Ottawa, Washington	30 min
Aug 7, 5:22 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Marshall, Nemaha, Pottawatomie	38 min
Aug 7, 5:38 AM CDT	Severe Thunderstorm Warning	TOP	Clay, Geary, Marshall, Pottawatomie, Riley, Washington	52 min
Aug 7, 5:51 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson, Pottawatomie, Shawnee, Wabaunsee	39 min
Aug 7, 5:58 AM CDT	Severe Thunderstorm Warning	TOP	Geary, Morris, Pottawatomie, Riley, Wabaunsee	47 min
Aug 7, 6:21 AM CDT	Severe Thunderstorm Warning	TOP	Douglas, Geary, Jackson, Jefferson, Lyon, Morris and 5 more	39 min
Aug 7, 6:54 AM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey, Douglas, Franklin, Jefferson, Lyon and 4 more	66 min
Aug 7, 9:18 AM CDT	Special Weather Statement	TOP	Coffey, Lyon	27 min

Nearby

Special Weather Statements in Kansas, 2019 Every special weather statement 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.