Alert archive / Kansas / Areal Flood Warnings in 2010

Areal Flood Warning 21, NWS Topeka, KS

July 4, 201012 counties in Kansas

NWS Topeka, KS issued this areal flood warning at Jul 4, 2010, 4:40 PM CDT for 12 counties in Kansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 4, 2010, 4:40 PM CDT (21:40 UTC)
Expired: Jul 4, 2010, 7:30 PM CDT
In force: 3 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: None

Counties Brown County, KS, Dickinson County, KS, Geary County, KS, Jackson County, KS, Lyon County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 24 km from the middle of the area, began a volume at 21:40 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

Lamont, OK (KLMN), launched 12:00Z, 9.7 hours before the alert went out and 306 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: 186 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 543 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 215 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jul 4, 4:35 PM CDT, 5 minutes earlier.

Area forecast discussion, Jul 4, 4:35 PM CDT, 5 minutes before

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Hazardous weather outlook, Jul 4, 3:44 PM CDT, 56 minutes before

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In the hours before

Local storm report, Jul 4, 1:19 PM CDT, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
119 PM CDT SUN JUL 04 2010

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

0117 PM     FLOOD            3 E DELPHOS             39.27N 97.72W
07/04/2010                   OTTAWA             KS   LAW ENFORCEMENT

            SHERIFF REPORTED 2 TO 3 INCHES OF WATER OVER HWY 41 IN
            SEVERAL LOCATIONS.

&&

BYRNE

Local storm report, Jul 4, 1:20 PM CDT, 3 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
120 PM CDT SUN JUL 04 2010

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

1255 PM     FLOOD            ADA                     39.15N 97.89W
07/04/2010                   OTTAWA             KS   LAW ENFORCEMENT

            TWO TO THREE INCHES OF WATER RUNNING OVER MULBERRY ROAD
            NEAR ADA.

&&

BYRNE

Local storm report, Jul 4, 2:13 PM CDT, 2 hours 27 minutes before

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Local storm report, Jul 4, 3:03 PM CDT, 1 hour 37 minutes before

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Local storm report, Jul 4, 3:18 PM CDT, 1 hour 22 minutes before

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Local storm report, Jul 4, 3:25 PM CDT, 1 hour 15 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
Jul 4, 4:14 AM CDT	Flood Watch	TOP	Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more	48 hr
Jul 4, 11:35 AM CDT	Areal Flood Warning	TOP	Clay, Cloud, Marshall, Ottawa, Republic, Washington	6 hr
Jul 4, 1:51 PM CDT	River Flood Warning	TOP	Washington	16 hr
Jul 4, 2:07 PM CDT	River Flood Warning	TOP	Marshall	31 hr
Jul 4, 5:34 PM CDT	Areal Flood Warning	TOP	Clay, Cloud, Marshall, Ottawa, Washington	116 min
Jul 4, 6:18 PM CDT	River Flood Warning	TOP	Ottawa	12 hr
Jul 4, 6:49 PM CDT	River Flood Warning	TOP	Clay	44 hr

Nearby

Areal Flood Warnings in Kansas, 2010 Every areal flood warning in 2010

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.