Flash Flood Warning 3, NWS Green Bay, WI

Issued

Aug 10, 2021, 7:11 PM CDT (00:11 UTC)

Expired

Aug 10, 2021, 10:05 PM CDT

In force

3 hr

Issued by

NWS Green Bay, WI

Area

Storm-based polygon

Flood severity

None

County Brown County, WI

The Green Bay radar (KGRB), 10 km from the middle of the area, began a volume at 00:10 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.

228 
WGUS53 KGRB 110011
FFWGRB
WIC009-110315-
/O.NEW.KGRB.FF.W.0003.210811T0011Z-210811T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Green Bay WI
711 PM CDT Tue Aug 10 2021

The National Weather Service in Green Bay has issued a

* Flash Flood Warning for...
  Central Brown County in northeastern Wisconsin...

* Until 1015 PM CDT.

* At 711 PM CDT, Trained weather spotters reported thunderstorms 
  producing heavy rain across the warned area. Up to 1 inch of rain 
  has fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. 
  Additional rainfall amounts up to 1 inch are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Trained spotters reported.

  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...
  Green Bay, Bellevue Town, De Pere, Howard, Ashwaubenon, Bellevue, 
  Allouez, Leo Frigo Bridge, Lambeau Field and Uw Green Bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4455 8800 4454 8788 4443 8789 4443 8809
      4455 8808

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

Cooley

540 
WGUS73 KGRB 110209
FFSGRB

Flash Flood Statement
National Weather Service Green Bay WI
909 PM CDT Tue Aug 10 2021

WIC009-110315-
/O.CON.KGRB.FF.W.0003.000000T0000Z-210811T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brown WI-
909 PM CDT Tue Aug 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT THIS 
EVENING FOR CENTRAL BROWN COUNTY...

At 909 PM CDT, Trained weather spotters reported thunderstorms 
producing heavy rain across the warned area along with minor 
flooding. Between 1 and 2 inches of rain have fallen with an 
additional half inch of rain possible. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Trained spotters reported.

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...
  Green Bay, Bellevue Town, De Pere, Howard, Ashwaubenon, Bellevue, 
  Allouez, Leo Frigo Bridge, Lambeau Field and Uw Green Bay.

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.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4455 8800 4454 8788 4443 8789 4443 8809
      4455 8808

FLASH FLOOD...OBSERVED

$$

Cooley

165 
WGUS73 KGRB 110305
FFSGRB

Flash Flood Statement
National Weather Service Green Bay WI
1005 PM CDT Tue Aug 10 2021

WIC009-110315-
/O.CAN.KGRB.FF.W.0003.000000T0000Z-210811T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brown WI-
1005 PM CDT Tue Aug 10 2021

...FLASH FLOOD WARNING FOR CENTRAL BROWN COUNTY HAS BEEN REPLACED 
WITH A FLOOD ADVISORY...

The heavy rain has ended. Minor flooding will likely continue so and 
flood advisory has been issued. Please continue to heed remaining 
road closures.

LAT...LON 4455 8800 4454 8788 4443 8789 4443 8809
      4455 8808

$$

Cooley

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.