Alert archive / Wisconsin / Flash Flood Warnings in 2016

Flash Flood Warning 4, NWS Milwaukee, WI

July 21, 20164 counties in Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jul 21, 2016, 6:37 PM CDT for 4 counties in Wisconsin. It was in force for 3 hr. 16 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 21, 2016, 6:37 PM CDT (23:37 UTC)
Expired: Jul 21, 2016, 9:30 PM CDT
In force: 3 hr
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Flood severity: None

Counties Columbia County, WI, Dane County, WI, Jefferson County, WI, Sauk County, WI

The radar

The Milwaukee radar (KMKX), 60 km from the middle of the area, began a volume at 23:37 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 21, 7:16 PM CDT	HEAVY RAIN 2.41	3 Ne Maple Bluff, WI
Jul 21, 7:16 PM CDT	HEAVY RAIN 2.41	Madison Truax Airport, WI
Jul 21, 7:30 PM CDT	HEAVY RAIN 2.25	1 Ene Cross Plains, WI	RAINFALL FELL IN 60 MINUTES
Jul 21, 7:30 PM CDT	HEAVY RAIN 2.25	1 Ene Cross Plains, WI	RAINFALL FELL IN 60 MINUTES.
Jul 21, 7:30 PM CDT	HEAVY RAIN 4.42	3 Nw Middleton, WI	RELAYED VIA TWITTER.
Jul 21, 7:39 PM CDT	FLASH FLOOD	2 Ssw Shorewood Hills, WI	ODANA ROAD AND DEARHOLT ROAD IMPASSABLE.
Jul 21, 7:39 PM CDT	FLASH FLOOD	3 Nw Fitchburg, WI	ODANA ROAD AND DEARHOLT ROAD IMPASSABLE
Jul 21, 7:41 PM CDT	HEAVY RAIN 2.51	Oregon, WI	.41 INCHES IN PAST 10 MINUTES. 2.05 INCHES IN 50 MINUTES ENDING AT 730PM. 3/4 OF NEIGHBORS YARD COVERED IN STANDING WATER.
Jul 21, 8:00 PM CDT	HEAVY RAIN 3.4	1 S Middleton, WI	FELL BETWEEN 625 PM AND 755 PM.
Jul 21, 8:11 PM CDT	FLASH FLOOD	1 Wsw Madison, WI	MULTIPLE INTERSECTIONS ON THE WEST-SOUTHWEST SIDE OF THE CITY ARE IMPASSABLE
Jul 21, 8:11 PM CDT	FLASH FLOOD	1 Wsw Madison, WI	MULTIPLE INTERSECTIONS ON THE WEST-SOUTHWEST SIDE OF THE CITY ARE IMPASSABLE.
Jul 21, 8:29 PM CDT	HEAVY RAIN 3.32	Oregon, WI
Jul 21, 8:55 PM CDT	HEAVY RAIN 2.88	Middleton, WI
Jul 21, 9:00 PM CDT	HEAVY RAIN 2.79	3 Ne Maple Bluff, WI	1.94 INCHES FROM 6 TO 7 PM.
Jul 21, 9:00 PM CDT	HEAVY RAIN 2.79	Madison Truax Airport, WI	1.94 INCHES FROM 6 TO 7 PM
Jul 21, 9:00 PM CDT	HEAVY RAIN 3.4	Middleton, WI	FELL IN 1.5 HOURS FROM 625 TO 855 PM

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 12:00Z, 11.6 hours before the alert went out and 186 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: 1904 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

654 
WGUS53 KMKX 212337
FFWMKX
WIC021-025-055-111-220230-
/O.NEW.KMKX.FF.W.0004.160721T2337Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
637 PM CDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN SAUK COUNTY IN SOUTH CENTRAL WISCONSIN...
  SOUTHERN COLUMBIA COUNTY IN SOUTH CENTRAL WISCONSIN...
  WESTERN JEFFERSON COUNTY IN SOUTHEASTERN WISCONSIN...
  DANE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 930 PM CDT

* AT 635 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY. ONE-HALF TO ONE INCH OF RAIN HAS ALREADY FALLEN.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MADISON...SUN PRAIRIE...FITCHBURG...MIDDLETON...STOUGHTON...
  WAUNAKEE...VERONA...OREGON...MCFARLAND...MONONA...MOUNT HOREB...
  WINDSOR...EDGERTON...COLUMBUS...PRAIRIE DU SAC...MARSHALL...
  SAUK CITY...WATERLOO...LAKE WISCONSIN AND DEFOREST.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 ARE POSSIBLE IN
THE WARNED AREA.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4286 8937 4286 8964 4336 8992 4336 8901
      4320 8901 4320 8895 4285 8890 4285 8937

$$

JTS

3 follow-up statements

636 
WGUS73 KMKX 220010
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
710 PM CDT THU JUL 21 2016

WIC021-025-055-111-220230-
/O.CON.KMKX.FF.W.0004.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAUK WI-COLUMBIA WI-JEFFERSON WI-DANE WI-
710 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
SOUTHEASTERN SAUK...SOUTHERN COLUMBIA...WESTERN JEFFERSON AND DANE
COUNTIES...

AT 708 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY
RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY
FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MADISON...SUN PRAIRIE...FITCHBURG...MIDDLETON...STOUGHTON...WAUNAKEE..
.VERONA...OREGON...MCFARLAND...MONONA...MOUNT HOREB...WINDSOR...EDGERTON...
COLUMBUS...PRAIRIE DU SAC...MARSHALL...SAUK CITY...WATERLOO...LAKE
WISCONSIN AND DEFOREST.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN
THE WARNED AREA.

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4286 8937 4286 8964 4336 8992 4336 8901
      4320 8901 4320 8895 4285 8890 4285 8937

$$

JTS

313 
WGUS73 KMKX 220045
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
745 PM CDT THU JUL 21 2016

WIC021-025-055-111-220230-
/O.CON.KMKX.FF.W.0004.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAUK WI-COLUMBIA WI-JEFFERSON WI-DANE WI-
745 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
SOUTHEASTERN SAUK...SOUTHERN COLUMBIA...WESTERN JEFFERSON AND DANE
COUNTIES...

AT 742 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS
PRODUCING HEAVY RAIN IN MADISON AND SURROUNDING AREAS.  A TRAINED
WEATHER SPOTTER IN OREGON REPORTED 2.5 INCHES OF RAIN FALLING IN
ONE HOUR.  THE AUTOMATED OBSERVING EQUIPMENT AT DANE COUNTY
REGIONAL AIRPORT MEASURED 2.7 INCHES SINCE 6 PM CDT.

ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS POSSIBLE THIS EVENING. 
FLASH FLOODING IS EXPECTED IN MADISON AND SURROUNDING AREAS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MADISON...SUN
PRAIRIE...FITCHBURG...MIDDLETON...STOUGHTON...WAUNAKEE...
VERONA...OREGON...MCFARLAND...MONONA...MOUNT
HOREB...WINDSOR...EDGERTON...
COLUMBUS...PRAIRIE DU SAC...MARSHALL...SAUK CITY...WATERLOO...LAKE
WISCONSIN AND DEFOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4286 8937 4286 8964 4336 8992 4336 8901
      4320 8901 4320 8895 4285 8890 4285 8937

$$

JTS//MBK

902 
WGUS73 KMKX 220129
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
829 PM CDT THU JUL 21 2016

WIC021-220136-
/O.CAN.KMKX.FF.W.0004.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLUMBIA WI-
829 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING FOR SOUTHERN COLUMBIA COUNTY IS
CANCELLED...

FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4286 8937 4286 8964 4325 8984 4323 8914
      4320 8901 4320 8895 4285 8890 4285 8937

$$

WIC025-055-111-220230-
/O.CON.KMKX.FF.W.0004.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAUK WI-JEFFERSON WI-DANE WI-
829 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
SOUTHEASTERN SAUK...WESTERN JEFFERSON AND DANE COUNTIES...

AT 826 PM CDT...LOCAL LAW ENFORCEMENT REPORTED HEAVY RAIN DUE TO A
THUNDERSTORM OVER PORTIONS OF MADISON.  SEVERAL INTERSECTIONS WERE
REPORTED CLOSED DUE TO FLOODING ON THE SOUTHWEST SIDE OF THE
CITY. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MADISON...SUN PRAIRIE...FITCHBURG...MIDDLETON...STOUGHTON...
WAUNAKEE...VERONA...OREGON...MCFARLAND...MONONA...MOUNT HOREB...
WINDSOR...EDGERTON...MARSHALL...WATERLOO...DEFOREST...
COTTAGE GROVE...CROSS PLAINS...BELLEVILLE AND DEERFIELD.

RADAR ESTIMATED BETWEEN 2 AND 4 INCHES HAS FALLEN OVER PORTIONS OF
THE AREA.  AN ADDITIONAL ONE QUARTER INCH TO THREE QUARTERS INCH IS
POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4286 8937 4286 8964 4325 8984 4323 8914
      4320 8901 4320 8895 4285 8890 4285 8937

$$
MBK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:18 AM CDT	Severe Thunderstorm Warning	MKX	Green Lake, Marquette	57 min
Jul 21, 8:41 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	64 min
Jul 21, 8:49 AM CDT	Severe Thunderstorm Warning	MKX	Marquette	26 min
Jul 21, 9:08 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge, Green Lake, Marquette	37 min
Jul 21, 9:21 AM CDT	Special Marine Warning	MKX		114 min
Jul 21, 9:28 AM CDT	Special Weather Statement	MKX	Sheboygan	62 min
Jul 21, 9:43 AM CDT	Special Weather Statement	MKX	Columbia, Dodge, Ozaukee, Sheboygan, Washington	32 min
Jul 21, 10:12 AM CDT	Special Weather Statement	MKX	Ozaukee, Waukesha	33 min
Jul 21, 10:46 AM CDT	Special Weather Statement	MKX	Milwaukee, Racine	29 min
Jul 21, 10:49 AM CDT	Special Marine Warning	MKX		86 min
Jul 21, 11:13 AM CDT	Special Weather Statement	MKX	Kenosha, Racine	32 min
Jul 21, 11:42 AM CDT	Heat Advisory	MKX	Dane, Green, Iowa, Jefferson, Kenosha, Lafayette and 6 more	31 hr
Jul 21, 4:15 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Green Lake, Marquette	60 min
Jul 21, 4:34 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Sauk	56 min
Jul 21, 4:50 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge, Green Lake, Marquette	55 min
Jul 21, 5:13 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge, Fond du Lac, Green Lake	62 min
Jul 21, 5:25 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Sauk	65 min
Jul 21, 5:30 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Jefferson, Waukesha	60 min
Jul 21, 5:38 PM CDT	Special Marine Warning	MKX		112 min
Jul 21, 5:48 PM CDT	Special Weather Statement	MKX	Dane	57 min
Jul 21, 5:51 PM CDT	Special Weather Statement	MKX	Washington	54 min
Jul 21, 6:03 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Jefferson, Rock	42 min
Jul 21, 6:08 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Racine, Rock, Walworth, Washington, Waukesha	67 min
Jul 21, 6:15 PM CDT	Severe Thunderstorm Warning	MKX	Dane	45 min
Jul 21, 6:21 PM CDT	Special Weather Statement	MKX	Milwaukee, Ozaukee	54 min
Jul 21, 6:23 PM CDT	Areal Flood Advisory	MKX	Columbia, Dane, Jefferson, Rock, Sauk	3 hr
Jul 21, 6:32 PM CDT	Special Weather Statement	MKX	Rock	58 min
Jul 21, 6:36 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine, Rock, Walworth	54 min
Jul 21, 6:40 PM CDT	Special Weather Statement	MKX	Kenosha, Racine	65 min
Jul 21, 6:47 PM CDT	Areal Flood Advisory	MKX	Sauk	3 hr

Nearby

Flash Flood Warnings in Wisconsin, 2016 Every flash flood warning in 2016

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.