Alert archive / Wisconsin / Flash Flood Watches in 2010

Flash Flood Watch 2, NWS Milwaukee, WI

June 22, 201012 counties in Wisconsin

NWS Milwaukee, WI issued this flash flood watch at Jun 22, 2010, 2:52 PM CDT for 12 counties in Wisconsin. It took effect at Jun 23, 2010, 12:00 AM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Jun 22, 2010, 2:52 PM CDT (19:52 UTC)
In effect from: Jun 23, 2010, 12:00 AM CDT
Expired: Jun 23, 2010, 3:15 PM CDT
In force: 15 hr
Issued by: NWS Milwaukee, WI
Flood severity: None

Counties Dane County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Milwaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Walworth County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 35 km from the middle of the area, began a volume at 19:50 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

Davenport, (KDVN), launched 12:00Z, 7.9 hours before the alert went out and 189 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: 1917 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 768 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

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 Milwaukee, WI wrote its last area forecast discussion before this flash flood watch went out at Jun 22, 3:30 AM CDT, 11 hours 22 minutes earlier.

Area forecast discussion, Jun 22, 3:30 AM CDT, 11 hours 22 minutes before

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Hazardous weather outlook, Jun 22, 12:00 PM CDT, 2 hours 52 minutes before

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In the hours before

Local storm report, Jun 22, 11:58 AM CDT, 2 hours 54 minutes before

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Local storm report, Jun 22, 12:00 PM CDT, 2 hours 52 minutes before

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Local storm report, Jun 22, 1:42 PM CDT, 1 hour 10 minutes before

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Local storm report, Jun 22, 2:15 PM CDT, 37 minutes before

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Special weather statement, Jun 22, 2:25 PM CDT, 27 minutes before

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The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 7:41 PM CDT	Tornado Warning	MKX	Green, Lafayette	34 min
Jun 21, 7:57 PM CDT	Areal Flood Advisory	MKX	Dane	3 hr
Jun 21, 7:59 PM CDT	Tornado Warning	MKX	Dane	46 min
Jun 21, 8:01 PM CDT	Tornado Warning	MKX	Jefferson, Rock	44 min
Jun 21, 8:04 PM CDT	Tornado Warning	MKX	Columbia, Sauk	41 min
Jun 21, 8:07 PM CDT	Tornado Warning	MKX	Green	38 min
Jun 21, 8:15 PM CDT	Tornado Warning	MKX	Dane, Jefferson	30 min
Jun 21, 8:20 PM CDT	Tornado Warning	MKX	Jefferson	40 min
Jun 21, 8:38 PM CDT	Tornado Warning	MKX	Columbia, Sauk	18 min
Jun 21, 8:45 PM CDT	Tornado Warning	MKX	Columbia, Dane, Sauk	32 min
Jun 21, 8:53 PM CDT	Tornado Warning	MKX	Jefferson	27 min
Jun 21, 9:00 PM CDT	Areal Flood Advisory	MKX	Jefferson, Rock	2 hr
Jun 21, 9:03 PM CDT	Tornado Warning	MKX	Jefferson, Waukesha	42 min
Jun 21, 9:11 PM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	49 min
Jun 21, 9:17 PM CDT	Tornado Warning	MKX	Waukesha	43 min
Jun 21, 9:20 PM CDT	Special Marine Warning	MKX		100 min
Jun 21, 9:30 PM CDT	Tornado Warning	MKX	Racine	45 min
Jun 21, 9:33 PM CDT	Tornado Warning	MKX	Milwaukee	42 min
Jun 21, 9:46 PM CDT	Tornado Warning	MKX	Racine	29 min
Jun 21, 9:58 PM CDT	Areal Flood Advisory	MKX	Milwaukee	102 min
Jun 21, 9:58 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha	32 min
Jun 21, 10:11 PM CDT	Areal Flood Advisory	MKX	Waukesha	88 min
Jun 21, 10:53 PM CDT	Severe Thunderstorm Warning	MKX	Sheboygan	30 min
Jun 21, 10:55 PM CDT	Special Marine Warning	MKX		33 min
Jun 22, 3:19 AM CDT	Dense Fog Advisory	MKX	Iowa, Sauk	6 hr
Jun 22, 12:27 PM CDT	River Flood Warning	MKX	Kenosha	9 days
Jun 22, 12:31 PM CDT	River Flood Watch	MKX	Milwaukee	24 hr

Nearby

Flash Flood Watches in Wisconsin, 2010 Every flash flood watch 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.