Flash Flood Warning 1, NWS Milwaukee, WI

Issued

Aug 8, 2021, 2:19 AM CDT (07:19 UTC)

Expired

Aug 8, 2021, 5:30 AM CDT

In force

3 hr

Issued by

NWS Milwaukee, WI

Area

Storm-based polygon

Flood severity

None

Counties Milwaukee County, WI, Ozaukee County, WI

The Milwaukee radar (KMKX), 56 km from the middle of the area, began a volume at 07:21 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.

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

376 
WGUS53 KMKX 080719
FFWMKX
WIC079-089-081030-
/O.NEW.KMKX.FF.W.0001.210808T0719Z-210808T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Milwaukee/Sullivan WI
219 AM CDT Sun Aug 8 2021

The National Weather Service in Milwaukee/Sullivan has issued a

* Flash Flood Warning for...
  Northern Milwaukee County in southeastern Wisconsin...
  Southwestern Ozaukee County in southeastern Wisconsin...

* Until 530 AM CDT.

* At 219 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. The expected rainfall rate is 1 to 2 inches in 1 
  hour. Additional rainfall amounts of 1 to 3 inches are possible in 
  the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Milwaukee, West Allis, Wauwatosa, New Berlin, Brookfield, Mequon, 
  Whitefish Bay, Brown Deer, Grafton, Cedarburg, Port Washington, 
  Fox Point, Elm Grove, Saukville, Bayside, West Milwaukee, 
  Thiensville, Glendale, River Hills and Milwaukee Hoan Bridge.

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.

&&

LAT...LON 4324 8806 4339 8804 4339 8787 4338 8786
      4337 8788 4331 8789 4325 8791 4317 8788
      4313 8790 4307 8786 4305 8789 4305 8788
      4304 8790 4301 8790 4300 8807

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

BOXELL

046 
WGUS73 KMKX 080900
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
400 AM CDT Sun Aug 8 2021

WIC079-089-081030-
/O.CON.KMKX.FF.W.0001.000000T0000Z-210808T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Milwaukee WI-Ozaukee WI-
400 AM CDT Sun Aug 8 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 AM CDT EARLY THIS 
MORNING FOR NORTHERN MILWAUKEE AND SOUTHWESTERN OZAUKEE COUNTIES...

At 400 AM CDT, local law enforcement reported heavy rain across the 
warned area. Between 2 and 4 inches of rain have fallen. Flash 
flooding is already occurring.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Law enforcement reported.  Several roads are flooded in
         the West Allis area.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Milwaukee, West Allis, Wauwatosa, New Berlin, Brookfield, Mequon, 
  Whitefish Bay, Brown Deer, Grafton, Cedarburg, Port Washington, 
  Fox Point, Elm Grove, Saukville, Bayside, West Milwaukee, 
  Thiensville, Glendale, River Hills and Milwaukee Hoan Bridge.

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.

&&

LAT...LON 4324 8806 4339 8804 4339 8787 4338 8786
      4337 8788 4331 8789 4325 8791 4317 8788
      4313 8790 4307 8786 4305 8789 4305 8788
      4304 8790 4301 8790 4300 8807

FLASH FLOOD...OBSERVED

$$

BOXELL

764 
WGUS73 KMKX 081034
FFSMKX

Flash Flood Statement
National Weather Service Milwaukee/Sullivan WI
534 AM CDT Sun Aug 8 2021

WIC079-089-081044-
/O.EXP.KMKX.FF.W.0001.000000T0000Z-210808T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Milwaukee WI-Ozaukee WI-
534 AM CDT Sun Aug 8 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR NORTHERN MILWAUKEE AND 
SOUTHWESTERN OZAUKEE COUNTIES...

The heavy rain has ended and flood waters are receding. Please 
continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 100 AM CDT Monday for 
portions of east central Wisconsin, south central Wisconsin and 
southeast Wisconsin.

LAT...LON 4324 8806 4339 8804 4339 8787 4338 8786
      4337 8788 4331 8789 4325 8791 4317 8788
      4313 8790 4307 8786 4305 8789 4305 8788
      4304 8790 4301 8790 4300 8807

$$

BOXELL

Flash Flood Warnings in Wisconsin, 2021Every flash flood warning in 2021

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.