Alert archive / Kansas / Special Weather Statements in 2018

Special Weather Statement, NWS Topeka, KS

August 30, 2018Anderson County, Coffey County, Franklin County, Kansas

NWS Topeka, KS issued this special weather statement at Aug 30, 2018, 5:40 AM CDT for Anderson County, Coffey County, Franklin County, Kansas. It was in force for 35 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 30, 2018, 5:40 AM CDT (10:40 UTC)
Expired: Aug 30, 2018, 6:15 AM CDT
In force: 35 min
Issued by: NWS Topeka, KS

Counties Anderson County, KS, Coffey County, KS, Franklin County, KS

The radar

The Pleasant Hill radar (KEAX), 101 km from the middle of the area, began a volume at 10:40 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 (KFOE), launched 00:00Z, 10.7 hours before the alert went out and 76 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1989 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 30, 3:28 AM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, Aug 30, 3:28 AM CDT, 2 hours 12 minutes before

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Hazardous weather outlook, Aug 30, 4:18 AM CDT, 1 hour 22 minutes before

Hazardous Weather Outlook
National Weather Service Topeka KS
418 AM CDT Thu Aug 30 2018

KSZ008>012-020>024-026-034>040-054>056-058-059-310930-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
418 AM CDT Thu Aug 30 2018

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

.DAY ONE...Today and Tonight.

Scattered thunderstorms are possible during the morning hours
with the best chances being near and south of Interstate 70. The
strongest storms will be capable of hail up to quarter size,
gusty winds, and localized heavy rainfall.

There is a low end chance for a few thunderstorms during the late
afternoon and evening, primarily across east central and
northeast Kansas. If thunderstorms were able to form, large hail
and damaging winds would be possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.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

Special weather statement, Aug 30, 3:42 AM CDT, 1 hour 58 minutes before

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Special weather statement, Aug 30, 4:12 AM CDT, 1 hour 28 minutes before

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Special weather statement, Aug 30, 4:20 AM CDT, 1 hour 20 minutes before

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Special weather statement, Aug 30, 4:44 AM CDT, 56 minutes before

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Special weather statement, Aug 30, 5:09 AM CDT, 31 minutes before

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Special weather statement, Aug 30, 5:40 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 30, 12:49 AM CDT	Special Weather Statement	TOP	Jefferson	41 min
Aug 30, 3:42 AM CDT	Special Weather Statement	TOP	Lyon	48 min
Aug 30, 4:12 AM CDT	Special Weather Statement	TOP	Coffey	48 min
Aug 30, 4:20 AM CDT	Special Weather Statement	TOP	Lyon, Morris	55 min
Aug 30, 4:44 AM CDT	Special Weather Statement	TOP	Anderson, Coffey	61 min
Aug 30, 5:09 AM CDT	Special Weather Statement	TOP	Dickinson, Morris	51 min
Aug 30, 5:48 AM CDT	Areal Flood Advisory	TOP	Coffey	3 hr
Aug 30, 5:58 AM CDT	Areal Flood Advisory	TOP	Anderson	3 hr
Aug 30, 5:58 AM CDT	Special Weather Statement	TOP	Dickinson	47 min
Aug 30, 6:00 AM CDT	Severe Thunderstorm Warning	TOP	Dickinson	30 min
Aug 30, 6:18 AM CDT	Special Weather Statement	TOP	Douglas, Franklin	42 min
Aug 30, 6:31 AM CDT	Special Weather Statement	TOP	Clay	29 min
Aug 30, 6:58 AM CDT	Special Weather Statement	TOP	Morris	32 min
Aug 30, 7:33 AM CDT	Flash Flood Warning	TOP	Anderson	4 hr
Aug 30, 8:19 AM CDT	Special Weather Statement	TOP	Lyon	26 min
Aug 30, 9:55 AM CDT	Severe Thunderstorm Warning	TOP	Shawnee	28 min
Aug 30, 11:13 AM CDT	Areal Flood Warning	TOP	Anderson, Coffey	4 hr

Nearby

Special Weather Statements in Kansas, 2018 Every special weather statement in 2018

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.