Alert archive / Kansas / Flash Flood Watches in 2013

Flash Flood Watch 4, NWS Topeka, KS

October 30, 201314 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Oct 30, 2013, 2:29 PM CDT for 14 counties in Kansas. It took effect at Oct 30, 2013, 3:00 PM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Oct 30, 2013, 2:29 PM CDT (19:29 UTC)
In effect from: Oct 30, 2013, 3:00 PM CDT
Expired: Oct 31, 2013, 9:19 AM CDT
In force: 18 hr
Issued by: NWS Topeka, KS
Flood severity: None

Counties Anderson County, KS, Coffey County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Morris County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 30 km from the middle of the area, began a volume at 19:33 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 12:00Z, 7.5 hours before the alert went out and 30 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: 648 J/kg
Mixed-layer CIN: -113 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 307 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Oct 30, 2:15 PM CDT, 14 minutes earlier.

Area forecast discussion, Oct 30, 2:15 PM CDT, 14 minutes before

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Hazardous weather outlook, Oct 30, 11:18 AM CDT, 3 hours 11 minutes before

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In the hours before

Special weather statement, Oct 30, 8:43 AM CDT, 5 hours 46 minutes before

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Special weather statement, Oct 30, 9:05 AM CDT, 5 hours 24 minutes before

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Special weather statement, Oct 30, 9:40 AM CDT, 4 hours 49 minutes before

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Special weather statement, Oct 30, 9:59 AM CDT, 4 hours 30 minutes before

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Local storm report, Oct 30, 10:17 AM CDT, 4 hours 12 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
Oct 30, 4:28 AM CDT	Special Weather Statement	TOP	Nemaha	32 min
Oct 30, 7:26 AM CDT	Special Weather Statement	TOP	Clay	34 min
Oct 30, 8:07 AM CDT	Special Weather Statement	TOP	Riley	23 min
Oct 30, 8:10 AM CDT	Special Weather Statement	TOP	Marshall	35 min
Oct 30, 8:43 AM CDT	Special Weather Statement	TOP	Pottawatomie	32 min
Oct 30, 8:47 AM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie	28 min
Oct 30, 9:05 AM CDT	Special Weather Statement	TOP	Jackson	25 min
Oct 30, 9:40 AM CDT	Special Weather Statement	TOP	Jackson	20 min
Oct 30, 9:59 AM CDT	Special Weather Statement	TOP	Brown	46 min
Oct 30, 10:15 AM CDT	Severe Thunderstorm Warning	TOP	Brown	30 min
Oct 30, 3:14 PM CDT	Special Weather Statement	TOP	Nemaha	31 min
Oct 30, 3:34 PM CDT	Areal Flood Advisory	TOP	Jefferson, Osage, Shawnee, Wabaunsee	3 hr
Oct 30, 4:31 PM CDT	Special Weather Statement	TOP	Osage	29 min

Nearby

Flash Flood Watches in Kansas, 2013 Every flash flood watch in 2013

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.