Alert archive / Wisconsin / Flash Flood Watches in 2013

Flash Flood Watch 1, NWS Green Bay, WI

August 26, 2013Lincoln County, Marathon County, Wisconsin

NWS Green Bay, WI issued this flash flood watch at Aug 26, 2013, 8:27 PM CDT for Lincoln County, Marathon County, Wisconsin. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Aug 26, 2013, 8:27 PM CDT (01:27 UTC)
Expired: Aug 27, 2013, 3:38 AM CDT
In force: 7 hr
Issued by: NWS Green Bay, WI
Flood severity: None

Counties Lincoln County, WI, Marathon County, WI

The radar

The Green Bay radar (KGRB), 146 km from the middle of the area, began a volume at 01:27 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

Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 304 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: 2586 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1399 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 15.4

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 Green Bay, WI wrote its last area forecast discussion before this flash flood watch went out at Aug 26, 7:48 PM CDT, 39 minutes earlier.

Area forecast discussion, Aug 26, 7:48 PM CDT, 39 minutes before

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Hazardous weather outlook, Aug 26, 3:05 PM CDT, 5 hours 22 minutes before

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In the hours before

Special weather statement, Aug 26, 3:03 PM CDT, 5 hours 24 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 12:20 AM CDT	Areal Flood Advisory	GRB	Marinette	2 hr
Aug 27, 12:28 AM CDT	Special Marine Warning	GRB		107 min
Aug 27, 5:40 AM CDT	Areal Flood Advisory	GRB	Forest, Oneida, Vilas	110 min
Aug 27, 9:58 AM CDT	Marine Dense Fog Advisory	GRB		41 hr
Aug 27, 2:00 PM CDT	Special Marine Warning	GRB		90 min
Aug 27, 4:29 PM CDT	Severe Thunderstorm Warning	GRB	Menominee, Oconto, Shawano	61 min
Aug 27, 5:25 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Shawano	50 min

Nearby

Flash Flood Watches in Wisconsin, 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.