Alert archive / Kansas / Special Weather Statements in 2012

Special Weather Statement, NWS Topeka, KS

March 29, 2012Brown County, Kansas

NWS Topeka, KS issued this special weather statement at Mar 29, 2012, 2:50 AM CDT for Brown County, Kansas. It was in force for 25 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: Mar 29, 2012, 2:50 AM CDT (07:50 UTC)
Expired: Mar 29, 2012, 3:15 AM CDT
In force: 25 min
Issued by: NWS Topeka, KS

County Brown County, KS

The radar

The Topeka radar (KTWX), 101 km from the middle of the area, began a volume at 07:50 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, 7.8 hours before the alert went out and 78 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: 1317 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1400 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.6

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 Mar 29, 12:05 AM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Mar 29, 12:05 AM CDT, 2 hours 45 minutes before

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Hazardous weather outlook, Mar 29, 12:42 AM CDT, 2 hours 8 minutes before

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In the hours before

Local storm report, Mar 28, 11:01 PM CDT, 3 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1101 PM CDT WED MAR 28 2012

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

1045 PM     FLASH FLOOD      4 SE BUSHONG            38.60N 96.20W
03/28/2012                   LYON               KS   LAW ENFORCEMENT

            ROAD CREWS CALLED OUT TO BARRICADE THE 800 BLOCK OF ROAD
            300 DUE TO WATER OVER THE ROAD.

&&

WOLTERS

Local storm report, Mar 28, 11:03 PM CDT, 3 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1103 PM CDT WED MAR 28 2012

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

1051 PM     HAIL             2 N SENECA              39.86N 96.06W
03/28/2012  E1.00 INCH       NEMAHA             KS   LAW ENFORCEMENT

&&

BYRNE

Local storm report, Mar 28, 11:36 PM CDT, 3 hours 14 minutes before

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Local storm report, Mar 28, 11:54 PM CDT, 2 hours 56 minutes before

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Local storm report, Mar 28, 11:58 PM CDT, 2 hours 52 minutes before

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Special weather statement, Mar 29, 2:50 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
Mar 28, 7:12 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Morris	48 min
Mar 28, 7:20 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Osage, Wabaunsee	40 min
Mar 28, 7:54 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Wabaunsee	51 min
Mar 28, 7:58 PM CDT	Severe Thunderstorm Warning	TOP	Lyon	47 min
Mar 28, 7:59 PM CDT	Severe Thunderstorm Warning	TOP	Coffey	61 min
Mar 28, 8:13 PM CDT	Severe Thunderstorm Warning	TOP	Republic	28 min
Mar 28, 8:20 PM CDT	Tornado Warning	TOP	Lyon	25 min
Mar 28, 8:25 PM CDT	Severe Thunderstorm Warning	TOP	Republic	21 min
Mar 28, 8:30 PM CDT	Severe Thunderstorm Warning	TOP	Shawnee, Wabaunsee	45 min
Mar 28, 8:31 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha, Pottawatomie	30 min
Mar 28, 8:37 PM CDT	Flash Flood Warning	TOP	Lyon	3 hr
Mar 28, 8:44 PM CDT	Tornado Warning	TOP	Lyon	31 min
Mar 28, 9:06 PM CDT	Severe Thunderstorm Warning	TOP	Jackson	39 min
Mar 28, 9:14 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Osage	25 min
Mar 28, 9:40 PM CDT	Special Weather Statement	TOP	Brown, Nemaha	35 min
Mar 28, 9:54 PM CDT	Severe Thunderstorm Warning	TOP	Nemaha	36 min
Mar 28, 10:32 PM CDT	Special Weather Statement	TOP	Nemaha	43 min
Mar 28, 10:47 PM CDT	Severe Thunderstorm Warning	TOP	Nemaha	28 min
Mar 28, 11:15 PM CDT	Areal Flood Warning	TOP	Lyon	3 hr
Mar 28, 11:16 PM CDT	Severe Thunderstorm Warning	TOP	Nemaha	44 min

Nearby

Special Weather Statements in Kansas, 2012 Every special weather statement in 2012

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.