Alert archive / Wisconsin / Flash Flood Warnings in 2017

Flash Flood Warning 3, NWS Milwaukee, WI

July 10, 2017Kenosha County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jul 10, 2017, 4:09 AM CDT for Kenosha County, Wisconsin. It was in force for 3 hr. 6 reports 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 10, 2017, 4:09 AM CDT (09:09 UTC)
Expired: Jul 10, 2017, 7:15 AM CDT
In force: 3 hr
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Flood severity: None

County Kenosha County, WI

The radar

The Milwaukee radar (KMKX), 65 km from the middle of the area, began a volume at 09:09 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 10, 5:10 AM CDT	HEAVY RAIN 5.48	2 Sw Kenosha, WI	STORM TOTAL FROM PERSONAL WEATHER STATION LOCATED IN NEWMAN PARK. RELAYED VIA BROADCAST MEDIA.
Jul 10, 5:28 AM CDT	HEAVY RAIN 3.27	2 Wsw Kenosha, WI	STORM TOTAL SO FAR. PERSONAL WEATHER STATION IN FOREST PARK.
Jul 10, 5:31 AM CDT	HEAVY RAIN 3.78	1 Nnw Pleasant Prairie, WI	STORM TOTAL SO FAR. PERSONAL WEATHER STATION.
Jul 10, 5:37 AM CDT	HEAVY RAIN 4.89	1 Ssw Kenosha, WI	STORM TOTAL SO FAR. PERSONAL WEATHER STATION.
Jul 10, 5:38 AM CDT	HEAVY RAIN 2.93	3 Ese Pleasant Prairie, WI	STORM TOTAL SO FAR. PERSONAL WEATHER STATION.
Jul 10, 7:00 AM CDT	FLASH FLOOD	4 S Sturtevant, WI	WATER POOLED ON ROADWAYS, UP TO THE HEADLIGHTS ON A SEDAN.

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

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.2 hours before the alert went out and 213 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: 251 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

As transmitted.

087 
WGUS53 KMKX 100909
FFWMKX
WIC059-101215-
/O.NEW.KMKX.FF.W.0003.170710T0909Z-170710T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Milwaukee/Sullivan WI
409 AM CDT MON JUL 10 2017

The National Weather Service in Milwaukee/Sullivan has issued a

* Flash Flood Warning for...
  Kenosha County in southeastern Wisconsin...

* Until 715 AM CDT

* At 409 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to three inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Kenosha, Pleasant Prairie, Twin Lakes, Paddock Lake, Camp Lake,
  Silver Lake, Powers Lake, Salem, Bristol, New Munster, Bassett and
  Slades Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4249 8781 4250 8831 4261 8830 4261 8819
      4267 8818 4267 8780 4258 8780 4253 8779
      4248 8779

$$

HENTZ

2 follow-up statements

828 
WGUS73 KMKX 101008
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
508 AM CDT MON JUL 10 2017

WIC059-101215-
/O.CON.KMKX.FF.W.0003.000000T0000Z-170710T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kenosha WI-
508 AM CDT MON JUL 10 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR
KENOSHA COUNTY...

At 505 AM CDT, Doppler radar indicated thunderstorms that 
produced the heaviest rains have moved off, with moderate 
rain now falling. Radar reports indicated 3 to 4 inches of 
rain fell over southern and especially southwestern sections of 
the city of Kenosha. Flash flooding will continue until the 
standing water gradually recedes. 

Some locations that will experience flooding include...
Kenosha, Pleasant Prairie, Twin Lakes, Paddock Lake, Camp Lake,
Silver Lake, Powers Lake, Salem, Bristol, New Munster, Bassett and
Slades Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4249 8781 4250 8831 4261 8830 4261 8819
      4267 8818 4267 8780 4258 8780 4253 8779
      4248 8779

$$

HENTZ

492 
WGUS73 KMKX 101207
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
707 AM CDT MON JUL 10 2017

WIC059-101215-
/O.CON.KMKX.FF.W.0003.000000T0000Z-170710T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kenosha WI-
707 AM CDT MON JUL 10 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR
KENOSHA COUNTY...

At 705 AM CDT, Doppler radar indicated that the thunderstorms 
that produced the heavy rains of up to 5.5 inches have now ended.
There may still be flooding of low areas into the morning.

Some locations that may still experience flooding include...
Kenosha, Pleasant Prairie, Twin Lakes, Paddock Lake, Camp Lake,
Silver Lake, Powers Lake, Salem, Bristol, New Munster, Bassett and
Slades Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4249 8781 4250 8831 4261 8830 4261 8819
      4267 8818 4267 8780 4258 8780 4253 8779
      4248 8779

$$

HENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 11:51 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Iowa, Sauk	39 min
Jul 10, 12:29 AM CDT	Severe Thunderstorm Warning	MKX	Dane, Iowa, Sauk	31 min
Jul 10, 12:44 AM CDT	Areal Flood Advisory	MKX	Columbia, Dane, Sauk	3 hr
Jul 10, 1:18 AM CDT	Special Weather Statement	MKX	Dane, Rock	27 min
Jul 10, 1:24 AM CDT	Flash Flood Warning	MKX	Dane	4 hr
Jul 10, 1:58 AM CDT	Special Weather Statement	MKX	Jefferson, Walworth	32 min
Jul 10, 2:18 AM CDT	Special Weather Statement	MKX	Kenosha	27 min
Jul 10, 2:40 AM CDT	Areal Flood Advisory	MKX	Rock, Walworth	3 hr
Jul 10, 2:54 AM CDT	Special Weather Statement	MKX	Walworth	36 min
Jul 10, 3:28 AM CDT	Special Weather Statement	MKX	Kenosha, Racine	32 min
Jul 10, 3:34 AM CDT	Areal Flood Advisory	MKX	Kenosha	3 hr
Jul 10, 4:04 AM CDT	Special Weather Statement	MKX	Kenosha	26 min

Nearby

Flash Flood Warnings in Wisconsin, 2017 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.