Alert archive / Wisconsin / Winter Weather Advisories in 2017

Winter Weather Advisory 13, NWS La Crosse, WI

October 31, 2017Clark County, Taylor County, Wisconsin

NWS La Crosse, WI issued this winter weather advisory at Oct 31, 2017, 8:09 PM CDT for Clark County, Taylor County, Wisconsin. It took effect at Nov 1, 2017, 2:00 PM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Oct 31, 2017, 8:09 PM CDT (01:09 UTC)
In effect from
Nov 1, 2017, 2:00 PM CDT
Expired
Nov 2, 2017, 1:00 AM CDT
In force
11 hr
Issued by
NWS La Crosse, WI

Counties Clark County, WI, Taylor County, WI

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.2 hours before the alert went out and 240 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2017-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2017-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1444 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

Nearby

Winter Weather Advisories in Wisconsin, 2017Every winter weather advisory in 2017

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.