Alert archive / Wisconsin / Flood Watches in 2019

Flood Watch 1, NWS La Crosse, WI

March 11, 201913 counties in Wisconsin; 7 counties in Minnesota; 8 counties in Iowa

NWS La Crosse, WI issued this flood watch at Mar 11, 2019, 2:58 PM CDT for 13 counties in Wisconsin; 7 counties in Minnesota; 8 counties in Iowa. It took effect at Mar 13, 2019, 7:00 AM CDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued: Mar 11, 2019, 2:58 PM CDT (19:58 UTC)
In effect from: Mar 13, 2019, 7:00 AM CDT
Expired: Mar 15, 2019, 7:00 AM CDT
In force: 48 hr
Issued by: NWS La Crosse, WI
Flood severity: None

All 28 counties

Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Clark County, WI, Crawford County, WI, Grant County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 27 km from the middle of the area, began a volume at 20:00 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 12:00Z, 8.0 hours before the alert went out and 210 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1151 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this flood watch went out at Mar 11, 12:00 PM CDT, 2 hours 58 minutes earlier.

Area forecast discussion, Mar 11, 12:00 PM CDT, 2 hours 58 minutes before

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Hazardous weather outlook, Mar 11, 3:07 AM CDT, 11 hours 51 minutes before

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Nearby

Flood Watches in Wisconsin, 2019 Flood Watches in Iowa, 2019 Flood Watches in Minnesota, 2019 Every flood watch in 2019

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.