Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS La Crosse, WI

May 21, 2021Clark County, Wisconsin

NWS La Crosse, WI issued this special weather statement at May 21, 2021, 8:05 PM CDT for Clark County, Wisconsin. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 21, 2021, 8:05 PM CDT (01:05 UTC)
Expired
May 21, 2021, 8:30 PM CDT
In force
25 min
Issued by
NWS La Crosse, WI

County Clark County, WI

The radar

The La Crosse radar (KARX), 109 km from the middle of the area, began a volume at 01:07 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.1 hours before the alert went out and 193 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, Green Bay/Straub, WI at 00:00Z on 2021-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 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, Green Bay/Straub, WI at 00:00Z on 2021-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
39 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

548 
WWUS83 KARX 220105
SPSARX

Special Weather Statement
National Weather Service La Crosse WI
805 PM CDT Fri May 21 2021

WIZ029-220130-
Clark-
805 PM CDT Fri May 21 2021

...Weak Funnel Clouds Possible Across Central Clark County...

At 802 PM CDT, Showers with possible funnel clouds were located 8 
miles west of Neillsville, moving northeast at 30 mph.

Locations impacted include...
Neillsville, Loyal, Greenwood, County K And Capital Road, Hog
Corners, Highway 73 And 98, Tioga, Christie, Highway 10 And Bald Peak
Road, Veefkind, Sidney, County Roads H And K, Globe, Snyder Lake,
Riplinger and The Highground.

Conditions in the atmosphere are such that weak, brief funnels may 
form this evening. They usually develop beneath showers or weak 
thunderstorms.

These funnels are usually harmless, but on rare occasions can briefly
touch down and cause wind gusts over 50 mph. If a funnel approaches
your location, move indoors.

Please contact Law Enforcement or the National Weather Service if 
you see a funnel.

LAT...LON 4465 9032 4450 9074 4465 9090 4492 9032
TIME...MOT...LOC 0102Z 246DEG 27KT 4460 9075 

$$

DAS

Nearby

Special Weather Statements in Wisconsin, 2021Every special weather statement in 2021

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.