Alert archive / Kansas / Special Weather Statements in 2015

Special Weather Statement, NWS Topeka, KS

September 10, 2015Jefferson County, Kansas

NWS Topeka, KS issued this special weather statement at Sep 10, 2015, 4:13 AM CDT for Jefferson County, Kansas. It was in force for 32 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: Sep 10, 2015, 4:13 AM CDT (09:13 UTC)
Expired: Sep 10, 2015, 4:45 AM CDT
In force: 32 min
Issued by: NWS Topeka, KS

County Jefferson County, KS

The radar

The Topeka radar (KTWX), 60 km from the middle of the area, began a volume at 09:16 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, 9.2 hours before the alert went out and 17 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: 701 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1524 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Sep 10, 3:20 AM CDT, 53 minutes earlier.

Area forecast discussion, Sep 10, 3:20 AM CDT, 53 minutes before

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Hazardous weather outlook, Sep 9, 3:25 PM CDT, 12 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
325 PM CDT WED SEP 9 2015

KSZ008>012-020>024-026-034>040-054>056-058-059-102030-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
325 PM CDT WED SEP 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT CHANCE FOR THUNDERSTORMS IN NORTH CENTRAL AND
PORTIONS OF NORTHEAST KANSAS AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS ARE POSSIBLE THURSDAY AFTERNOON AND EVENING...A FEW
OF WHICH COULD BE SEVERE WITH DAMAGING WIND GUSTS AND LARGE HAIL.
LOCALLY HEAVY RAINFALL COULD ALSO OCCUR.

.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, Sep 10, 1:55 AM CDT, 2 hours 18 minutes before

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Special weather statement, Sep 10, 1:55 AM CDT, 2 hours 18 minutes before

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Special weather statement, Sep 10, 2:10 AM CDT, 2 hours 3 minutes before

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Special weather statement, Sep 10, 2:29 AM CDT, 1 hour 44 minutes before

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Special weather statement, Sep 10, 4:13 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
Sep 10, 1:15 AM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	30 min
Sep 10, 1:30 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	30 min
Sep 10, 1:40 AM CDT	Severe Thunderstorm Warning	TOP	Washington	35 min
Sep 10, 1:55 AM CDT	Special Weather Statement	TOP	Nemaha	35 min
Sep 10, 2:10 AM CDT	Special Weather Statement	TOP	Washington	35 min
Sep 10, 2:29 AM CDT	Special Weather Statement	TOP	Nemaha	31 min
Sep 10, 4:31 AM CDT	Special Weather Statement	TOP	Douglas	29 min
Sep 10, 4:48 PM CDT	Special Weather Statement	TOP	Coffey	27 min
Sep 10, 5:15 PM CDT	Special Weather Statement	TOP	Coffey	30 min
Sep 10, 5:35 PM CDT	Severe Thunderstorm Warning	TOP	Republic	40 min
Sep 10, 5:43 PM CDT	Severe Thunderstorm Warning	TOP	Coffey	32 min
Sep 10, 5:54 PM CDT	Severe Thunderstorm Warning	TOP	Washington	51 min
Sep 10, 6:00 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Riley	45 min
Sep 10, 6:14 PM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	46 min
Sep 10, 6:26 PM CDT	Special Weather Statement	TOP	Coffey	34 min
Sep 10, 6:36 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Marshall, Riley, Washington	39 min
Sep 10, 6:36 PM CDT	Severe Thunderstorm Warning	TOP	Coffey	39 min
Sep 10, 6:42 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Cloud, Ottawa	48 min
Sep 10, 6:43 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie	32 min
Sep 10, 6:44 PM CDT	Severe Thunderstorm Warning	TOP	Washington	31 min
Sep 10, 6:49 PM CDT	Severe Thunderstorm Warning	TOP	Republic	26 min

Nearby

Special Weather Statements in Kansas, 2015 Every special weather statement in 2015

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.