Alert archive / Wisconsin / Flash Flood Warnings in 2019

Flash Flood Warning 13, NWS Milwaukee, WI

October 1, 2019Dodge County, Ozaukee County, Washington County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Oct 1, 2019, 8:51 PM CDT for Dodge County, Ozaukee County, Washington County, Wisconsin. It was in force for 3 hr. 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
Oct 1, 2019, 8:51 PM CDT (01:51 UTC)
Expired
Oct 1, 2019, 11:45 PM CDT
In force
3 hr
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Flood severity
None

Counties Dodge County, WI, Ozaukee County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 57 km from the middle of the area, began a volume at 01:53 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

TimeReportWhereRemark
Oct 1, 11:00 PM CDTFLASH FLOOD4 Sse Belgium, WISOUTHBOUND LANES OF I-43 CLOSED FROM COUNTY HWY D AT BELGIUM TO COUNTY HWY H NEAR PORT WASHINGTON.

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, 1.9 hours before the alert went out and 121 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 2019-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2019-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.1939587897Sfc1 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
554 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
367 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

034 
WGUS53 KMKX 020151
FFWMKX
WIC027-089-131-020445-
/O.NEW.KMKX.FF.W.0013.191002T0151Z-191002T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Milwaukee/Sullivan WI
851 PM CDT Tue Oct 1 2019

The National Weather Service in Milwaukee/Sullivan has issued a

* Flash Flood Warning for...
  Ozaukee County in southeastern Wisconsin...
  Washington County in southeastern Wisconsin...
  Dodge County in southeastern Wisconsin...

* Until 1145 PM CDT.

* At 847 PM CDT, Doppler radar indicated a broken line of 
  thunderstorms producing heavy rain from Belgium west to Beaver 
  Dam, moving to the east to southeast.  These storms will produce 
  very heavy rainfall of 1 to 3 inches in one hour resulting in 
  areas of flash flooding. 

  Radar estimates between 1 and 3 inches has fallen in northern 
  parts of Dodge county so far. 

* Some locations that may experience flooding include...
  West Bend, Mequon, Beaver Dam, Hartford, Grafton, Cedarburg, Port
  Washington, Jackson, Mayville, Slinger, Saukville, Kewaskum,
  Horicon, Thiensville, Juneau, Belgium, Fredonia, Theresa, Newburg
  and Hustisford.

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.

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.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 4336 8786 4326 8789 4323 8789 4324 8895
      4352 8895 4355 8840 4354 8778 4348 8778

$$

MBK
3 follow-up statements
106 
WGUS73 KMKX 020231
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
931 PM CDT Tue Oct 1 2019

WIC027-089-131-020445-
/O.CON.KMKX.FF.W.0013.000000T0000Z-191002T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozaukee WI-Washington WI-Dodge WI-
931 PM CDT Tue Oct 1 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
OZAUKEE...WASHINGTON AND DODGE COUNTIES...

At 924 PM CDT, local law enforcement reported road closures in 
Dodge County including County Road AY near Theresa. 
Thunderstorms producing heavy rainfall will continue to affect 
the area from Port Washington west to Beaver Dam through the 
late evening.  One hour rainfall of 1 to 2 inches is likely, 
producing the heavy rainfall.  

Some locations that will experience flooding include...
West Bend, Mequon, Beaver Dam, Hartford, Grafton, Cedarburg, Port
Washington, Jackson, Mayville, Slinger, Saukville, Kewaskum, Horicon,
Thiensville, Juneau, Belgium, Fredonia, Theresa, Newburg and
Hustisford.

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.

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 4336 8786 4326 8789 4323 8789 4324 8895
      4352 8895 4355 8840 4354 8778 4348 8778

$$

MBK
895 
WGUS73 KMKX 020359
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
1059 PM CDT Tue Oct 1 2019

WIC027-089-131-020445-
/O.CON.KMKX.FF.W.0013.000000T0000Z-191002T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozaukee WI-Washington WI-Dodge WI-
1059 PM CDT Tue Oct 1 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
OZAUKEE...WASHINGTON AND DODGE COUNTIES...

At 1056 PM CDT, local law enforcement reported heavy rainfall has 
caused flood waters to close Highway 43 in the Belgium area between 
county roads D and H.  The heavier rainfall has shifted south of the 
area, but an additional one quarter to one half inch is expected 
overnight.  Flash flooding continues in the warned area. 

Some locations that will experience flooding include...
West Bend, Mequon, Beaver Dam, Hartford, Grafton, Cedarburg, Port
Washington, Jackson, Mayville, Slinger, Saukville, Kewaskum, Horicon,
Thiensville, Juneau, Belgium, Fredonia, Theresa, Newburg and
Hustisford.

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.

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 4336 8786 4326 8789 4323 8789 4324 8895
      4352 8895 4355 8840 4354 8778 4348 8778

$$

MBK
444 
WGUS73 KMKX 020436
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
1136 PM CDT Tue Oct 1 2019

WIC027-089-131-020445-
/O.EXP.KMKX.FF.W.0013.000000T0000Z-191002T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ozaukee WI-Washington WI-Dodge WI-
1136 PM CDT Tue Oct 1 2019

...THE FLASH FLOOD WARNING FOR OZAUKEE...WASHINGTON AND DODGE
COUNTIES WILL EXPIRE AT 1145 PM CDT...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 4336 8786 4326 8789 4323 8789 4324 8895
      4352 8895 4355 8840 4354 8778 4348 8778

$$

MBK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 7:13 PM CDTSpecial Weather StatementMKXOzaukee, Washington77 min
Oct 1, 7:29 PM CDTFlash Flood WarningMKXDodge, Fond du Lac, Sheboygan3 hr
Oct 1, 7:38 PM CDTFlash Flood WarningMKXColumbia, Dane, Dodge, Sauk3 hr
Oct 1, 8:00 PM CDTSpecial Weather StatementMKXIowa, Lafayette60 min
Oct 1, 8:08 PM CDTAreal Flood AdvisoryMKXDane, Iowa, Lafayette3 hr
Oct 1, 8:35 PM CDTFlash Flood WarningMKXColumbia, Dane3 hr
Oct 1, 8:41 PM CDTRiver Flood WarningMKXSheboygan67 hr
Oct 1, 8:43 PM CDTSpecial Weather StatementMKXDane62 min
Oct 1, 9:24 PM CDTSpecial Weather StatementMKXRock, Walworth, Waukesha51 min
Oct 1, 9:31 PM CDTTornado WarningMKXJefferson29 min
Oct 1, 9:47 PM CDTAreal Flood AdvisoryMKXJefferson, Milwaukee, Rock, Waukesha3 hr
Oct 1, 9:48 PM CDTTornado WarningMKXWaukesha27 min
Oct 1, 10:31 PM CDTFlash Flood WarningMKXMilwaukee, Racine, Rock, Walworth, Waukesha2 hr
Oct 1, 10:57 PM CDTSpecial Marine WarningMKX63 min
Oct 2, 12:00 AM CDTRiver Flood WarningMKXFond du Lac21 days
Oct 2, 2:40 AM CDTRiver Flood WarningMKXDane38 hr
Oct 2, 3:37 AM CDTRiver Flood WarningMKXOzaukee21 days
Oct 2, 3:54 AM CDTRiver Flood WarningMKXOzaukee6 days
Oct 2, 4:04 AM CDTRiver Flood WarningMKXKenosha21 days
Oct 2, 5:28 AM CDTRiver Flood WarningMKXSauk7 days
Oct 2, 8:25 AM CDTRiver Flood WarningMKXColumbia21 days
Oct 2, 9:38 AM CDTRiver Flood WarningMKXOzaukee25 hr
Oct 2, 10:05 AM CDTRiver Flood WarningMKXLafayette66 hr
Oct 2, 10:05 AM CDTRiver Flood WarningMKXMilwaukee34 hr
Oct 2, 10:05 AM CDTRiver Flood WarningMKXRacine57 hr
Oct 2, 10:05 AM CDTRiver Flood WarningMKXRock54 hr
Oct 2, 10:05 AM CDTRiver Flood WarningMKXRock37 hr
Oct 2, 10:40 AM CDTRiver Flood WatchMKXJefferson29 hr
Oct 2, 10:40 AM CDTRiver Flood WatchMKXRock22 days
Oct 2, 10:40 AM CDTRiver Flood WatchMKXRacine5 days
Oct 2, 2:49 PM CDTLakeshore Flood AdvisoryMKXKenosha, Milwaukee, Ozaukee, Racine, Sheboygan13 hr
Oct 2, 4:36 PM CDTRiver Flood WarningMKXRock37 days
Oct 2, 4:36 PM CDTRiver Flood WarningMKXRacine5 days

Nearby

Flash Flood Warnings in Wisconsin, 2019Every flash flood warning in 2019

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.