Alert archive / Wisconsin / Flash Flood Warnings in 2014

Flash Flood Warning 5, NWS Green Bay, WI

September 5, 2014Door County, Wisconsin

NWS Green Bay, WI issued this flash flood warning at Sep 5, 2014, 2:08 AM CDT for Door County, Wisconsin. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 5, 2014, 2:08 AM CDT (07:08 UTC)
Expired
Sep 5, 2014, 5:00 AM CDT
In force
3 hr
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Flood severity
None

County Door County, WI

The radar

The Green Bay radar (KGRB), 104 km from the middle of the area, began a volume at 07:09 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.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 7.1 hours before the alert went out and 105 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 2014-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 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 2014-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -115 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-310 J/kg
Mixed-layer LCL
1071 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-115 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

811 
WGUS53 KGRB 050708
FFWGRB
WIC029-051000-
/O.NEW.KGRB.FF.W.0005.140905T0708Z-140905T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
208 AM CDT FRI SEP 5 2014

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DOOR COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 500 AM CDT

* AT 201 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING IN THE SISTER BAY...FISH CREEK AND BAILEYS HARBOR
  AREAS...WHERE RADAR INDICATED THAT 3 TO 5 INCHES OF RAIN FELL.
  WATER WAS FLOWING ACROSS NUMEROUS ROADS...AND FLOODING WAS
  REPORTED IN ONE RESIDENCE AND ONE BUSINESS IN SISTER BAY.
  ADDITIONAL THUNDERSTORMS MAY PRODUCE ANOTHER HALF INCH TO AN
  INCH OF RAINFALL THROUGH 5 AM...WHICH MAY RESULT IN CONTINUED
  FLOODING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. ADDITIONAL LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  EPHRAIM AND PENINSULA STATE PARK.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4520 8698 4521 8702 4512 8699 4512 8700
      4514 8702 4497 8718 4493 8716 4495 8739
      4507 8729 4511 8731 4509 8727 4518 8726
      4515 8725 4520 8713 4526 8711 4525 8695

$$

KIECKBUSCH
2 follow-up statements
527 
WGUS73 KGRB 050817
FFSGRB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
317 AM CDT FRI SEP 5 2014

WIC029-051000-
/O.CON.KGRB.FF.W.0005.000000T0000Z-140905T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOOR WI-
317 AM CDT FRI SEP 5 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR DOOR COUNTY UNTIL 500 AM
CDT...

AT 312 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH 
FLOODING WAS OCCURRING IN THE SISTER BAY AREA...WHERE A COUPLE RESORTS
AND SEVERAL RESIDENCES WERE FLOODED. ALTHOUGH THE STEADY HEAVY
RAINFALL HAS ENDED...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
WITH BRIEF HEAVY RAINFALL ARE STILL POSSIBLE FOR NEXT FEW HOURS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SISTER
BAY...FISH CREEK...BAILEYS HARBOR...EPHRAIM AND PENINSULA STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAIN WILL CAUSE MINOR FLOODING OF 
SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND 
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 4520 8698 4521 8702 4512 8699 4512 8700
      4514 8702 4497 8718 4493 8716 4495 8739
      4507 8729 4511 8731 4509 8727 4518 8726
      4515 8725 4520 8713 4526 8711 4525 8695

$$

KIECKBUSCH
528 
WGUS73 KGRB 051008
FFSGRB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
508 AM CDT FRI SEP 5 2014

WIC029-051017-
/O.EXP.KGRB.FF.W.0005.000000T0000Z-140905T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOOR WI-
508 AM CDT FRI SEP 5 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR DOOR COUNTY HAS
BEEN ALLOWED TO EXPIRE...

LAW ENFORCEMENT HAS REPORTED THAT FLOODING CONDITIONS ARE
IMPROVING IN NORTHERN DOOR COUNTY...BUT SOME ROADS ARE STILL
COVERED BY WATER. MOTORISTS IN THE SISTER BAY...FISH CREEK...
EPHRAIM AND BAILEYS HARBOR AREAS SHOULD BE ALERT FOR WATER ON
THE ROADS...AND USE CAUTION FOR THE MORNING COMMUTE. 

ALTHOUGH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WITH BRIEF 
HEAVY RAINFALL ARE STILL POSSIBLE FOR A COUPLE MORE HOURS...EXCESS 
RUNOFF FROM HEAVY RAIN HAS TAPERED OFF OVER THE WARNED AREA. FLOOD 
WATERS IN THE WARNED AREA WERE BEGINNING TO RECEDE. IF FLOODING HAS 
BEEN OBSERVED...PLEASE  REPORT IT TO YOUR LOCAL LAW ENFORCEMENT 
AGENCY.

LAT...LON 4520 8698 4521 8702 4512 8699 4512 8700
      4514 8702 4497 8718 4493 8716 4495 8739
      4507 8729 4511 8731 4509 8727 4518 8726
      4515 8725 4520 8713 4526 8711 4525 8695

$$

KIECKBUSCH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 11:34 PM CDTSpecial Marine WarningGRB71 min
Sep 5, 12:08 AM CDTAreal Flood AdvisoryGRBDoor, Langlade, Marinette, Menominee, Oconto, Shawano3 hr
Sep 5, 12:32 AM CDTSpecial Marine WarningGRB88 min
Sep 5, 2:21 AM CDTSevere Thunderstorm WarningGRBMarinette19 min
Sep 5, 11:34 AM CDTRiver Flood WarningGRBMarathon7 days
Sep 5, 12:02 PM CDTRiver Flood WarningGRBShawano, Waupaca7 days

Nearby

Flash Flood Warnings in Wisconsin, 2014Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.