Alert archive / Indiana / Beach Hazards Statements in 2014

Beach Hazards Statement 8, NWS Chicago, IL

August 11, 2014Lake County, Porter County, Indiana; Lake County, Illinois

NWS Chicago, IL issued this beach hazards statement at Aug 11, 2014, 3:46 PM CDT for Lake County, Porter County, Indiana; Lake County, Illinois. It took effect at Aug 12, 2014, 9:00 AM CDT. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Aug 11, 2014, 3:46 PM CDT (20:46 UTC)
In effect from
Aug 12, 2014, 9:00 AM CDT
Expired
Aug 13, 2014, 10:00 AM CDT
In force
25 hr
Issued by
NWS Chicago, IL

Counties Lake County, IL, Lake County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 57 km from the middle of the area, began a volume at 20:49 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

Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 206 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, Lincoln, IL at 12:00Z on 2014-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 670 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2014-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.1939Sfc1 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
670 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
2 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.

810 
WHUS43 KLOT 112046
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
346 PM CDT MON AUG 11 2014

ILZ006-014-120500-
/O.NEW.KLOT.BH.S.0008.140812T1400Z-140813T0900Z/
LAKE IL-COOK-
346 PM CDT MON AUG 11 2014

...BEACH HAZARDS STATEMENT IN EFFECT FROM TUESDAY MORNING THROUGH
LATE TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR DANGEROUS SWIMMING CONDITIONS...WHICH IS IN
EFFECT FROM TUESDAY MORNING THROUGH LATE TUESDAY NIGHT. 

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 7 FEET OCCASIONALLY TO 9 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY. 

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER. 

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-120500-
/O.NEW.KLOT.BH.S.0008.140812T1400Z-140813T1500Z/
LAKE IN-PORTER-
346 PM CDT MON AUG 11 2014

...BEACH HAZARDS STATEMENT IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR DANGEROUS SWIMMING CONDITIONS...WHICH IS IN
EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY MORNING. 

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...6 TO 9 FEET OCCASIONALLY TO 11 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY. 

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER. 

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

RODRIGUEZ

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
7 follow-up statements
937 
WHUS43 KLOT 120303
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1003 PM CDT MON AUG 11 2014

ILZ006-014-121115-
/O.CON.KLOT.BH.S.0008.140812T1400Z-140813T0900Z/
LAKE IL-COOK-
1003 PM CDT MON AUG 11 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM CDT
TUESDAY THROUGH LATE TUESDAY NIGHT...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 7 FEET OCCASIONALLY TO 9 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-121115-
/O.CON.KLOT.BH.S.0008.140812T1400Z-140813T1500Z/
LAKE IN-PORTER-
1003 PM CDT MON AUG 11 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM CDT
TUESDAY THROUGH WEDNESDAY MORNING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...6 TO 9 FEET OCCASIONALLY TO 11 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

RC

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
363 
WHUS43 KLOT 120817
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
317 AM CDT TUE AUG 12 2014

ILZ006-014-121630-
/O.CON.KLOT.BH.S.0008.140812T1400Z-140813T0900Z/
LAKE IL-COOK-
317 AM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM CDT THIS
MORNING THROUGH LATE TONIGHT...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 6 FEET OCCASIONALLY TO 8 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-121630-
/O.CON.KLOT.BH.S.0008.140812T1400Z-140813T1500Z/
LAKE IN-PORTER-
317 AM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM CDT THIS
MORNING THROUGH WEDNESDAY MORNING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...6 TO 9 FEET OCCASIONALLY TO 11 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

BEACHLER

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
127 
WHUS43 KLOT 121527
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1027 AM CDT TUE AUG 12 2014

ILZ006-014-122330-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T0900Z/
LAKE IL-COOK-
1027 AM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 7 FEET OCCASIONALLY TO 9 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-122330-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T1500Z/
LAKE IN-PORTER-
1027 AM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
MORNING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...7 TO 10 FEET OCCASIONALLY TO 13 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

RODRIGUEZ

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
373 
WHUS43 KLOT 122026
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
326 PM CDT TUE AUG 12 2014

ILZ006-014-130430-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T0900Z/
LAKE IL-COOK-
326 PM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 7 FEET OCCASIONALLY TO 9 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-130430-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T1500Z/
LAKE IN-PORTER-
326 PM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
MORNING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...7 TO 10 FEET OCCASIONALLY TO 13 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

RODRIGUEZ

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
763 
WHUS43 KLOT 130207
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
907 PM CDT TUE AUG 12 2014

ILZ006-014-130900-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T0900Z/
LAKE IL-COOK-
907 PM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM CDT
WEDNESDAY...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...4 TO 7 FEET OCCASIONALLY TO 9 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

FOR INFORMATION ON SWIM ADVISORIES OR BANS AT CHICAGO BEACHES
VISIT...WWW.CPDBEACHES.COM.

&&

$$

INZ001-002-131015-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T1500Z/
LAKE IN-PORTER-
907 PM CDT TUE AUG 12 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY
MORNING...

* HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED.

* FORECAST WAVE HEIGHTS...5 TO 8 FEET OCCASIONALLY TO 10 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

MTF

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
645 
WHUS43 KLOT 130834
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
334 AM CDT WED AUG 13 2014

ILZ006-014-130945-
/O.EXP.KLOT.BH.S.0008.000000T0000Z-140813T0900Z/
LAKE IL-COOK-
334 AM CDT WED AUG 13 2014

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 AM CDT EARLY THIS
MORNING...

WINDS AND WAVES WILL CONTINUE TO DIMINISH EARLY THIS MORNING.

$$

INZ001-002-131500-
/O.CON.KLOT.BH.S.0008.000000T0000Z-140813T1500Z/
LAKE IN-PORTER-
334 AM CDT WED AUG 13 2014

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* MODERATE TO HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS
  EXPECTED.

* FORECAST WAVE HEIGHTS...3 TO 5 FEET.

* STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN
SANDBARS. STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE
CURRENTS AND WAVE ACTION FLOW INTO THE STRUCTURE. RIP CURRENTS
AND STRUCTURAL CURRENTS CAN SWEEP YOU INTO DEEPER WATER.

EXPOSED BEACHES ARE MORE LIKELY TO EXPERIENCE THE MOST
SIGNIFICANT WAVE AND CURRENT IMPACTS.

IMPACTS AT BEACHES WITH PROTECTIVE BREAKWALLS OR JETTIES WILL BE
SUBJECT TO ORIENTATION OF STRUCTURES AS WELL AS WIND AND WAVE
DIRECTION.

&&

$$

BMD

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
860 
WHUS43 KLOT 131507
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1007 AM CDT WED AUG 13 2014

INZ001-002-131615-
/O.EXP.KLOT.BH.S.0008.000000T0000Z-140813T1500Z/
LAKE IN-PORTER-
1007 AM CDT WED AUG 13 2014

...BEACH HAZARDS STATEMENT HAS EXPIRED...

WINDS HAVE DIMINISHED AND WAVES HAVE SUBSIDED ALONG THE INDIANA
SHORE OF LAKE MICHIGAN. WHILE SWIMMING CONDITIONS HAVE IMPROVED
SOMEWHAT...2 TO 4 FOOT WAVES WILL STILL PRODUCE A MODERATE SWIM
RISK TODAY WHICH MEANS THAT LARGE WAVES AND STRONG CURRENTS ARE
LIKELY ALONG THE SHORE. ONLY EXPERIENCED SWIMMERS SHOULD CONSIDER
ENTERING THE WATER.

$$

RATZER

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

THEN AFTER DOING THE SURVEY VISIT US AT HTTP://WEATHER.GOV/CHICAGO

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

What forecasters said that day

The local office's own words before this beach hazards statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this beach hazards statement went out at Aug 11, 3:13 PM CDT, 33 minutes earlier.

Area forecast discussion, Aug 11, 3:13 PM CDT, 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
313 PM CDT MON AUG 11 2014

.DISCUSSION...
257 PM CDT

NEAR TERM FORECAST FOCUS DEALS SHOWER/THUNDERSTORM COVERAGE THROUGH
THIS EVENING...AND ADDITIONAL SHOWER CHANCES THROUGH AT LEAST
TUESDAY MORNING ESPECIALLY OVER EASTERN PARTS OF THE FORECAST AREA.

EARLY AFTERNOON SURFACE ANALYSIS DEPICTS TWO SEPARATE AREAS OF LOW
PRESSURE...ONE OVER CENTRAL WISCONSIN AND THE OTHER ACROSS WESTERN
OHIO. BOTH OF THESE SURFACE LOWS WERE ASSOCIATED WITH FAIRLY STOUT
MID-LEVEL SHORT WAVES WHICH WERE ALSO RESPONSIBLE FOR A LARGE AREA
OF SHOWERS AND THUNDERSTORMS FROM NORTHERN WI ACROSS LAKE MICHIGAN
TO THE SOUTHERN GREAT LAKES/OHIO VALLEY REGION THIS AFTERNOON. FOR
OUR LOCAL AREA...THE STRONG SHORT WAVE TROUGH SEEN IN GOES VAPOR
IMAGERY OVER MINNESOTA WILL BE THE MAIN DRIVER IN OUR WEATHER AND
PRECIP TRENDS OVER THE NEXT 18 HOURS OR SO...AS IT CONTINUES TO DIG
SOUTHEAST ACROSS NORTHERN IL THROUGH TUESDAY MORNING. ALONG WITH ITS
SURFACE REFLECTION OVER WI...A COLD FRONT EXTENDING ALONG THE
MISSISSIPPI RIVER WILL PUSH SOUTHEAST THROUGH THIS EVENING...AND
WILL BE THE FOCUS FOR SHOWERS AND A FEW THUNDERSTORMS. WHILE SURFACE
WINDS WERE ALREADY WEST-NORTHWEST AHEAD OF THE FRONT ITSELF...THUS
REDUCING CONVERGENCE ALONG THE BOUNDARY...STEEP LOW LEVEL LAPSE
RATES AND RAP MESOANALYSIS MLCAPES OF 500-1000 J/KG SHOULD BE ENOUGH
TO SUSTAIN SHOWERS/THUNDERSTORMS AHEAD OF THE FRONT THROUGH EARLY
EVENING. IN ADDITION...A FEW SHOWERS HAD DEVELOPED ALONG THE LAKE
BREEZE FROM SOUTHEAST WI INTO NORTHEAST IL...AND THESE SHOWERS AND
ISOLATED THUNDERSTORMS MAY ALSO FESTER A BIT AHEAD OF THE FRONT. ANY
OF THE STRONGER STORMS MAY PRODUCE BRIEF HEAVY DOWNPOURS...AND
PERHAPS SOME BRIEF GUSTY WINDS WITH STORMS ALONG THE FRONT DUE TO
THE STEEP LOW LEVEL LAPSE RATES.

THE STRONG MINNESOTA SHORT WAVE WILL AMPLIFY/DEEPEN AN  UPPER TROUGH
OVER THE WESTERN LAKES TONIGHT...WITH THE SURFACE LOWS CONSOLIDATING
AND DEEPENING OVER LOWER MICHIGAN. A FEW SHOWERS MAY LINGER OVER
NORTHEASTERN PARTS OF THE CWA AND SOUTHERN LAKE MICHIGAN TUESDAY
MORNING AS THE MAIN VORT MOVES THROUGH...BEFORE SUBSIDENCE INDICATED
BY 40 METER H5 HEIGHT RISES SPREADS IN DURING THE AFTERNOON. NORTH
WINDS STRENGTHENING BEHIND THE DEEPENING LOW WILL EVENTUALLY PULL
COOLER AND DRIER AIR INTO THE REGION TUESDAY AFTERNOON/NIGHT. AFTER
TEMPS REACHING THE LOW 80S TODAY (WHERE CLOUDS DID NOT PREVENT
IT)... COOLER 70S EXPECTED FOR HIGHS TUESDAY...AND SOME LOW 50S FOR
LOWS TUESDAY NIGHT!

GUIDANCE INDICATES ANOTHER WEAKER SHORT-WAVE DROPPING SOUTHEAST
ACROSS THE WESTERN LAKES WEDNESDAY...WITH A WEAK SURFACE WAVE AND
TROUGH PUSHING SOUTH ACROSS THE REGION DURING THE AFTERNOON. SOME
MODELS ARE TRYING TO SQUEEZE OUT A LITTLE PATCHY LIGHT QPF HINTING
AT SOME SHOWERS ALONG/AHEAD OF THE TROUGH DURING THE AFTERNOON...
THOUGH MOST OF THIS IS ACROSS WI/NORTHEAST IA AND HAVE LOW ENOUGH
CONFIDENCE IN IT IMPACTING THE FORECAST AREA TO LEAVE IT OUT OF THE
FORECAST AT THIS TIME. SIMILAR POTENTIAL FOR THURSDAY AFTERNOON
FARTHER SOUTH DEPENDING UPON WHERE THE TROUGH IS BY THEN. OTHERWISE
HIGH PRESSURE BUILDS INTO THE REGION WEDNESDAY NIGHT AND THURSDAY
WITH LIGHTER WINDS AND A MODERATION IN TEMPS BACK TO THE 75-80
DEGREE RANGE THURSDAY AND AROUND 80 FRIDAY WITH ATTENDANT LAKE
BREEZES. THE HIGH THEN DRIFTS OFF TO THE EAST FRIDAY NIGHT AND
SATURDAY...WITH AN EVENTUAL RETURN OF WARM/MOIST ADVECTION FLOW INTO
THE WEEKEND AND EARLY NEXT WEEK. IN THE EXTENDED RANGE...GEM...GFS
AND ECMWF ALL BRING SOME PRECIP POTENTIAL BACK TO THE AREA BY FRIDAY
NIGHT...THOUGH THERE ARE SOME TIMING DIFFERENCES BETWEEN THE GLOBAL
GUIDANCE BY DAYS 6-7. THUS HAVE MAINTAINED BLENDED GUIDANCE APPROACH
WITH GENERALLY LOW-CHANCE POPS AND TEMPS WARMING BACK INTO THE
LOW-MID 80S THROUGH THE WEEKEND.

RATZER

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 20Z...

* SHRA/TSRA CHANCES LATE THIS AFTERNOON ALONG A LAKE BREEZE AND
  THEN AN INITIAL COLD FRONT/WIND SHIFT BOUNDARY.

* SECOND AND BETTER CHANCE FOR SHRA/TSRA WITH AN UPPER LEVEL
  DISTURBANCE THIS EVENING. ANOTHER CHANCE WITH A COLD FRONT
  OVERNIGHT.

* MVFR/IFR CIGS BEHIND THE COLD FRONT EARLY TUESDAY MORNING.

KREIN

//DISCUSSION...UPDATED 18Z...

A COMPLEX UPPER LEVEL PATTERN IS LARGELY RESPONSIBLE FOR SHAPING
THE WEATHER OVER THE AREA THROUGH THE NEXT 24-30 HRS.
MEANWHILE...AT THE SFC...A WEAK PRESSURE GRADIENT IS IN PLACE
AHEAD OF AN APPROACHING COLD FRONT...WHICH MAY HELP INDUCE A LAKE
BREEZE THIS AFTERNOON. HOWEVER...INITIALLY...HAVE DELAYED THE CIGS
IMPROVING FROM MVFR TO VFR BASED ON LATEST SATELLITE TRENDS. THE
BACK EDGE OF THE THICKER LOWER CLOUD IS SLOWING AS CU DEVELOPMENT
BEGINS TO FILL IN THE CLEAR SLOT BETWEEN THE APPROACHING COLD
FRONT FROM THE NORTHWEST AND THE EXITING MID LEVEL IMPULSE OFF TO
THE NORTHEAST. BY LATE THIS AFTERNOON...THE CLEARING SKIES AND
WEAK GRADIENT SHOULD ALLOW THE LAKE BREEZE TO FORM...TURNING WINDS
TO MORE NELY AT THE CHICAGO AREA TERMINALS. WITH A VERY MOIST
AIRMASS IN PLACE...THE LAKE BREEZE BOUNDARY SHOULD BE THE FOCUS
FOR ADDITIONAL SCT SHOWERS AND POSSIBLE AN ISOLATED THUNDERSTORM.
THE WEAK COLD FRONT IS STILL EXPECTED TO PUSH ACROSS THE AREA LATE
THIS EVENING...TURNING WINDS MORE NWLY. BY THE EARLY MORNING HOURS
TUESDAY MORNING...DRIER AIR ALOFT IS EXPECTED TO OVERSPREAD THE LOW
LEVEL MOIST AIR...LEADING TO THE POTENTIAL STRATUS LOWERING INTO
IFR LEVELS. WITH DIURNAL WARMING...CIGS SHOULD LIFT MVFR BY ARND
14Z. HIGH PRESSURE BUILDING OVER THE CENTRAL PLAINS AND A
DEEPENING SFC LOW OVER MICHIGAN AND THE CENTRAL GREAT LAKES WILL
BRING STRENGTHENING NW WINDS THROUGH THE DAY TOMORROW...GUSTING TO
20-25KT FROM LATE MORNING THROUGH LATE AFTERNOON. AS THE HIGH
SPREADS EAST ACROSS THE MIDDLE MISSISSIPPI VALLEY LATE TOMORROW
AFTERNOON AND EARLY TOMORROW EVENING...THE NWLY WINDS SHOULD LOOSE
THE GUSTINESS AND WEAKEN.

KREIN

//ORD AND MDW CONFIDENCE...UPDATED 20Z...

* HIGH THAT WINDS REMAIN UNDER 10 KT TODAY.

* MEDIUM IN SHRA CHANCES LATE THIS AFTERNOON...LOW IN ANY TSRA
  WITH THE LAKE BREEZE BOUNDARY...WHERE BETTER CHANCES EXIST
  NORTH OF ORD.

* MEDIUM TO HIGH ON SHRA CHANCES THIS EVENING WITH UPPER LEVEL
  DISTURBANCE AND MEDIUM ON TIMING OF THE COLD FRONT.

* MEDIUM ON AT MVFR CIGS BEHIND THE FRONT LATE TONIGHT...LOW TO
  MEDIUM ON IFR CIGS EARLY TOMORROW MORNING.

KREIN

//OUTLOOK FOR ORD/MDW FOR 00Z WEDNESDAY-12Z MONDAY...UPDATED 12Z...

TUESDAY NIGHT...VFR. BREEZY NORTH TO NORTHWEST WINDS.

WEDNESDAY...VFR. NORTHWEST WINDS WITH POSSIBLE SHIFT TO NORTHEAST
WITH LAKE BREEZE.

THURSDAY...VFR. NORTH TO NORTHEAST WINDS.

FRIDAY...VFR. LIGHT SOUTH WINDS TURN NORTHEAST WITH LAKE BREEZE IN
THE AFTERNOON.

SATURDAY AND SUNDAY...VFR. CHANCE TSRA. SOUTH TO SOUTHEAST WINDS.

KMD

&&

.MARINE...
314 AM CDT

AFTER FAIRLY QUIET CONDITIONS ON THE LAKE THROUGH EARLY
AFTERNOON...A MODEST COLD FRONT WILL MOVE OVER THE LAKE LATE TODAY
BRINGING A PERIOD OF NEAR GALE FORCE WINDS INTO TUESDAY.

LOW PRESSURE OVER THE OHIO VALLEY WILL DEEPEN AND PUSH NORTHEAST
TOWARD LAKE HURON BY DAYBREAK TUESDAY WHILE HIGH PRESSURE BUILDS
SOUTH INTO THE UPPER MIDWEST AND PLAINS STATES. AS THIS OCCURS A
COLD FRONT PASSES OVER THE LAKE BRINGING A PERIOD OF GUSTY
NORTHWEST TO NORTH WINDS. IT APPEARS THAT THE STRONGEST GRADIENT
WILL BE ON THE NORTH HALF OF THE LAKE WHERE THERE IS A BETTER
CHANCE FOR NEAR GALE FORCE....THOUGH SOLID WINDS TO 30 KT CAN BE
EXPECTED. WITH THE EXTENDED PERIOD OF NNW WINDS...WAVES WILL BUILD
ESPECIALLY ACROSS THE SOUTHERN HALF OF THE LAKE. SMALL CRAFT
ADVISORY CONDITIONS LOOK FAIRLY LIKELY FOR THE NEARSHORE WATERS...ESPECIALLY
DUE TO THE BUILDING WAVES...WITH AT LEAST A PERIOD OF 20-25 KT
POSSIBLE.

HIGH PRESSURE WILL BEGIN TO NOSE INTO THE GREAT LAKES REGION ON
WEDNESDAY AND BRING THE RETURN TO LAKE BREEZE INFLUENCE FOR THE
LATTER HALF OF THE WEEK.

KMD

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...SMALL CRAFT ADVISORY...LMZ743-LMZ744-LMZ745...9 AM TUESDAY TO 10
     AM WEDNESDAY.

     SMALL CRAFT ADVISORY...LMZ740-LMZ741-LMZ742...9 AM TUESDAY TO 4
     AM WEDNESDAY.

     GALE WATCH...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565...7 AM
     TUESDAY TO 3 PM TUESDAY.

&&

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO
Hazardous weather outlook, Aug 11, 3:22 PM CDT, 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
322 PM CDT MON AUG 11 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
122030-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
322 PM CDT MON AUG 11 2014 /422 PM EDT MON AUG 11 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  SCATTERED THUNDERSTORMS...SOME MAY PRODUCE:

   OCCASIONAL CLOUD TO GROUND LIGHTNING.
   BRIEF HEAVY DOWNPOURS.
   A FEW SPORADIC WIND GUSTS TO 40 MPH.

  AREAS AFFECTED AND TIMING:

  NORTH CENTRAL ILLINOIS THIS AFTERNOON...NORTHEAST AND PARTS OF
  EAST CENTRAL ILLINOIS LATE THIS AFTERNOON AND EARLY THIS EVENING
  AND NORTHWEST INDIANA EARLY THIS EVENING.

  DISCUSSION:

  A COLD FRONT WAS PUSHING EAST OF THE MISSISSIPPI RIVER THIS
  AFTERNOON...AND WILL CONTINUE TO MOVE EAST ACROSS THE OUTLOOK
  AREA THROUGH THIS EVENING. DAYTIME HEATING HAS LED TO WEAK
  DESTABILIZATION OF THE AIR MASS AHEAD OF THE COLD FRONT...AND AN
  UPPER LEVEL DISTURBANCE WAS ALSO MOVING SOUTHEAST INTO THE AREA.
  ISOLATED TO SCATTERED THUNDERSTORMS HAVE DEVELOPED JUST AHEAD OF
  THE FRONT...AND WILL MOVE EAST WITH THE FRONT THROUGH EARLY THIS
  EVENING. RELATIVELY LIGHT WINDS ALOFT SHOULD PRECLUDE ANY
  SUBSTANTIAL SEVERE WEATHER THREAT...THOUGH THE STRONGEST STORMS
  MAY PRODUCE SPORADIC BRIEF GUSTY WINDS TO PERHAPS 40 MPH MAINLY
  ACROSS NORTH CENTRAL ILLINOIS THIS AFTERNOON. STORMS MAY ALSO
  PRODUCE BRIEF DOWNPOURS. THUNDERSTORMS WILL LIKELY DECREASE IN
  COVERAGE LATER THIS EVENING...THOUGH A FEW ISOLATED STORMS MAY
  REMAIN POSSIBLE OVER FAR NORTHEAST ILLINOIS AND SOUTHERN LAKE
  MICHIGAN INTO THE NIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

HIGH WAVES AND STRONG WINDS WILL CREATE HAZARDOUS SWIMMING
CONDITIONS TUESDAY INTO TUESDAY NIGHT ALONG THE ILLINOIS SHORE OF
LAKE MICHIGAN...AND THROUGH WEDNESDAY MORNING FOR BEACHES ALONG THE
INDIANA SHORE.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS ACROSS THE AREA FROM
FRIDAY NIGHT INTO MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

LMZ740>745-122030-
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
322 PM CDT MON AUG 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE...MAINLY THIS
EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT TUESDAY AND TUESDAY NIGHT ALONG THE ILLINOIS SHORE AND
INTO WEDNESDAY MORNING ALONG THE INDIANA SHORE.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS ACROSS THE AREA
FROM FRIDAY NIGHT INTO MONDAY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-122030-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
322 PM CDT MON AUG 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE LAKE TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NORTH GALE FORCE WINDS WILL BE POSSIBLE MAINLY ON NORTHERN LAKE
MICHIGAN TUESDAY.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS ACROSS THE LAKE
FROM FRIDAY NIGHT INTO MONDAY.

&&

RATZER

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
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WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 11, 8:26 AM CDTBeach Hazards StatementLOTLake, Porter6 hr
Aug 11, 8:13 AM CDTSmall Craft AdvisoryLOT7 hr
Aug 11, 3:37 PM CDTGale WatchLOT6 hr
Aug 11, 3:37 PM CDTSmall Craft AdvisoryLOT42 hr
Aug 11, 6:29 PM CDTSpecial Weather StatementLOTKendall31 min

Nearby

Beach Hazards Statements in Indiana, 2014Beach Hazards Statements in Illinois, 2014Every beach hazards statement 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.