Alert archive / Wisconsin / Tornado Warnings in 2023

Tornado Warning 9, NWS Milwaukee, WI

July 28, 2023Lafayette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jul 28, 2023, 7:10 PM CDT for Lafayette County, Wisconsin. It was in force for 35 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2023, 7:10 PM CDT (00:10 UTC)
Expired: Jul 28, 2023, 7:45 PM CDT
In force: 35 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.0 in

County Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 115 km from the middle of the area, began a volume at 00:11 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.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 7:25 PM CDT	HAIL 2.5	3 W Belmont, WI	Picture via Twitter.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 28, 6:27 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.2 hours before the alert went out and 114 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: 3767 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1322 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 6.0

Open this sounding in Storm Lab

The text

As transmitted.

723 
WFUS53 KMKX 290010
TORMKX
WIC065-290045-
/O.NEW.KMKX.TO.W.0009.230729T0010Z-230729T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
710 PM CDT Fri Jul 28 2023

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  Southwestern Lafayette County in south central Wisconsin...

* Until 745 PM CDT.
    
* At 710 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Platteville, moving southeast at 25 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Benton, New Diggings, Elk Grove, and Lead Mine. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4277 9043 4263 9018 4251 9036 4251 9043
TIME...MOT...LOC 0010Z 311DEG 22KT 4272 9044 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

HANSEN

1 follow-up statement

123 
WWUS53 KMKX 290023
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
723 PM CDT Fri Jul 28 2023

WIC065-290045-
/O.CON.KMKX.TO.W.0009.000000T0000Z-230729T0045Z/
Lafayette WI-
723 PM CDT Fri Jul 28 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHWESTERN LAFAYETTE COUNTY...
    
At 722 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Belmont, or near Platteville, moving southeast at 25
mph.

HAZARD...Tornado and two inch hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Benton, New Diggings, Elk Grove, and Lead Mine. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4277 9043 4263 9018 4251 9036 4251 9043
TIME...MOT...LOC 0022Z 321DEG 22KT 4267 9037 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

HANSEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Iowa, Lafayette	57 min
Jul 28, 7:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Lafayette	51 min
Jul 28, 7:41 PM CDT	Tornado Warning	MKX	Lafayette	20 min
Jul 28, 7:58 PM CDT	Severe Thunderstorm Warning	MKX	Racine, Walworth, Waukesha	47 min
Jul 28, 8:14 PM CDT	Severe Thunderstorm Warning	MKX	Walworth	41 min
Jul 28, 8:17 PM CDT	Severe Thunderstorm Warning	MKX	Rock	22 min
Jul 28, 8:17 PM CDT	Severe Thunderstorm Warning	MKX	Sauk	43 min
Jul 28, 8:37 PM CDT	Severe Thunderstorm Warning	MKX	Racine	38 min
Jul 28, 8:38 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Marquette, Sauk	67 min
Jul 28, 8:49 PM CDT	Flash Flood Warning	MKX	Green, Iowa, Lafayette	4 hr
Jul 28, 8:58 PM CDT	Tornado Warning	MKX	Columbia, Sauk	26 min
Jul 28, 9:01 PM CDT	Special Marine Warning	MKX		59 min
Jul 28, 9:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Columbia, Dodge, Fond du Lac, Green Lake	54 min
Jul 28, 9:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Dane, Iowa, Jefferson	63 min
Jul 28, 9:28 PM CDT	Special Marine Warning	MKX		47 min
Jul 28, 9:39 PM CDT	Special Marine Warning	MKX		96 min
Jul 28, 9:44 PM CDT	Tornado Warning	MKX	Columbia, Dane, Dodge, Jefferson	46 min
Jul 28, 9:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Dane, Green, Jefferson, Rock, Walworth, Waukesha	61 min
Jul 28, 10:04 PM CDT	Special Marine Warning	MKX		56 min
Jul 28, 10:04 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Dodge, Fond du Lac, Washington	56 min
Jul 28, 10:25 PM CDT	Flash Flood Warning	MKX	Dane	2 hr
Jul 28, 10:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Milwaukee, Ozaukee, Washington, Waukesha	49 min
Jul 28, 10:29 PM CDT	Special Marine Warning	MKX		2 hr
Jul 28, 10:33 PM CDT	Tornado Warning	MKX	Racine, Walworth, Waukesha	27 min
Jul 28, 10:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MKX	Kenosha, Racine, Walworth	51 min

Nearby

Tornado Warnings in Wisconsin, 2023 Every tornado warning in 2023 Tornadoes in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.