Alert archive / Wisconsin / Flash Flood Warnings in 2013

Flash Flood Warning 4, NWS Milwaukee, WI

June 22, 2013Iowa County, Sauk County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 22, 2013, 11:06 PM CDT for Iowa County, Sauk County, Wisconsin. It was in force for 6 hr. 2 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: Jun 22, 2013, 11:06 PM CDT (04:06 UTC)
Expired: Jun 23, 2013, 5:00 AM CDT
In force: 6 hr
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Flood severity: None

Counties Iowa County, WI, Sauk County, WI

The radar

The La Crosse radar (KARX), 118 km from the middle of the area, began a volume at 04:10 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.

What was reported inside it

Time	Report	Where	Remark
Jun 23, 12:00 AM CDT	FLASH FLOOD	3 N Highland, WI	NUMEROUS REPORTS OF PORTIONS OF ROADS FLOODED AND WASHED OUT IN NORTHWEST PARTS OF IOWA COUNTY BETWEEN 10 PM AND 230 AM.
Jun 23, 12:00 AM CDT	FLASH FLOOD	3 N Sauk City, WI	REPORTS OF WATER OVER ROADS IN SOUTHERN SAUK COUNTY.

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

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.1 hours before the alert went out and 183 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: 2548 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1426 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 225 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

570 
WGUS53 KMKX 230406
FFWMKX
WIC049-111-231000-
/O.NEW.KMKX.FF.W.0004.130623T0406Z-130623T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1106 PM CDT SAT JUN 22 2013

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN IOWA COUNTY IN SOUTH CENTRAL WISCONSIN...
  SOUTHERN SAUK COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 500 AM CDT

* AT 1104 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. 1 TO 3 INCHES OF RAIN HAS FALLEN WITH ANOTHER 1 TO 3  
  INCHES POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  DODGEVILLE...PRAIRIE DU SAC...SAUK CITY...BLACKHAWK LAKE RECREATION
  AREA...DEVILS LAKE STATE PARK...GOVERNOR DODGE STATE PARK...LONE
  ROCK AIRPORT AND SPRING GREEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE 
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME 
KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID STREAMS OR CREEKS.

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 4320 9044 4321 9029 4317 9020 4346 9019
      4347 8963 4336 8967 4331 8973 4327 8972
      4325 8975 4324 8980 4321 8984 4309 8984
      4304 8986 4288 9043

$$

DDV

2 follow-up statements

253 
WGUS73 KMKX 230603
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
103 AM CDT SUN JUN 23 2013

WIC049-111-231000-
/O.CON.KMKX.FF.W.0004.000000T0000Z-130623T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IOWA WI-SAUK WI-
103 AM CDT SUN JUN 23 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHERN SAUK AND NORTHERN IOWA COUNTIES...

AT 1250 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE MODERATE RAINFALL. THOUGH THE HEAVIEST RAIN HAS MOVED 
SOUTH...THE RUNOFF FROM PREVIOUS THUNDERSTORMS COMBINED WITH THE 
CONTINUED MODERATE RAIN WILL LIKELY CAUSE THE FLOODING TO PERSIST. 
ADDITIONALLY...HEAVIER RAIN TO THE WEST MAY PUSH INTO THE WARNING 
AREA. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DEVILS LAKE
STATE PARK...SAUK CITY...PRAIRIE DU SAC AND BARABOO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE 
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME 
KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID STREAMS OR CREEKS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 
WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW 
YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4320 9044 4321 9029 4317 9020 4346 9019
      4347 8963 4336 8967 4331 8973 4327 8972
      4325 8975 4324 8980 4321 8984 4309 8984
      4304 8986 4288 9043

$$

DDV

773 
WGUS73 KMKX 230818
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
318 AM CDT SUN JUN 23 2013

WIC049-111-230826-
/O.CAN.KMKX.FF.W.0004.000000T0000Z-130623T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IOWA WI-SAUK WI-
318 AM CDT SUN JUN 23 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN SAUK AND
NORTHERN IOWA COUNTIES...

THE SIGNIFICANT RAINS ARE OVER FOR THE NIGHT.  RUNOFF FROM EARLIER 
HEAVY RAINS WILL CONTINUE BUT THE WORST HIGH WATER CONDITIONS SHOULD 
BE OVER FOR THE NIGHT.  

THUNDERSTORMS JUST UPSTREAM IN SOUTHWEST WISCONSIN HAVE BEEN 
WEAKENING AND SHOULD RESULT IN VERY LITTLE ADDITIONAL RAIN AS THEY 
MOVE ACROSS SOUTH CENTRAL WISCONSIN IN THE NEXT COUPLE OF HOURS. 

LAT...LON 4320 9044 4321 9029 4317 9020 4346 9019
      4347 8963 4336 8967 4331 8973 4327 8972
      4325 8975 4324 8980 4321 8984 4309 8984
      4304 8986 4288 9043

$$

CRAVEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 7:53 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Iowa, Sauk	37 min
Jun 22, 8:29 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Iowa	31 min
Jun 22, 8:39 PM CDT	Tornado Warning	MKX	Columbia	36 min
Jun 22, 9:14 PM CDT	Areal Flood Advisory	MKX	Columbia, Dane, Dodge, Green Lake, Iowa, Jefferson and 2 more	3 hr
Jun 22, 9:15 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Dodge, Jefferson	30 min
Jun 23, 3:36 AM CDT	Flash Flood Watch	MKX	Columbia, Dane, Green, Green Lake, Iowa, Lafayette and 4 more	3 days
Jun 23, 7:31 AM CDT	River Flood Warning	MKX	Columbia	24 hr
Jun 23, 10:44 AM CDT	River Flood Watch	MKX	Columbia, Sauk	11 hr

Nearby

Flash Flood Warnings in Wisconsin, 2013 Every flash flood warning in 2013

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.