Alert archive / Indiana / Rip Current Statements in 2011

Rip Current Statement 16, NWS Chicago, IL

September 25, 2011Lake County, Porter County, Indiana; Lake County, Illinois

NWS Chicago, IL issued this rip current statement at Sep 25, 2011, 10:13 AM CDT for Lake County, Porter County, Indiana; Lake County, Illinois. It took effect at Sep 26, 2011, 1:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Sep 25, 2011, 10:13 AM CDT (15:13 UTC)
In effect from
Sep 26, 2011, 1:00 AM CDT
Expired
Sep 26, 2011, 10:01 AM CDT
In force
9 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 15:14 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, 3.2 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 2011-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Lincoln, IL at 12:00Z on 2011-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939587897117Sfc1 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
13 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
87 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.

429 
WHUS43 KLOT 251513
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1013 AM CDT SUN SEP 25 2011

ILZ006-014-INZ001-002-252315-
/O.NEW.KLOT.RP.S.0016.110926T0600Z-110926T1500Z/
LAKE IL-COOK-LAKE IN-PORTER-
1013 AM CDT SUN SEP 25 2011

...RIP CURRENT RISK IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

* RISK LEVEL...MODERATE FOR THE ILLINOIS AND INDIANA SHORE.

* WAVES...WAVES INCREASING TO 8 TO 12 FT FOR THE ILLINOIS SHORE
  LATE TONIGHT AND WAVES INCREASING TO 4 TO 6 FT FOR THE INDIANA
  SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A MODERATE RISK OF RIP CURRENTS. 

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH
PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS. 

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
4 follow-up statements
360 
WHUS43 KLOT 252147
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
447 PM CDT SUN SEP 25 2011

ILZ006-014-INZ001-002-260600-
/O.CON.KLOT.RP.S.0016.110926T0600Z-110926T1500Z/
LAKE IL-COOK-LAKE IN-PORTER-
447 PM CDT SUN SEP 25 2011

...RIP CURRENT RISK REMAINS IN EFFECT FROM 1 AM CDT MONDAY
THROUGH MONDAY MORNING...

* RISK LEVEL...MODERATE FOR THE ILLINOIS AND INDIANA SHORE.

* WAVES...WAVES INCREASING TO 7 TO 10 FT FOR THE ILLINOIS SHORE
  LATE TONIGHT AND WAVES INCREASING TO 3 TO 5 FT FOR THE INDIANA
  SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A MODERATE RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH
PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
440 
WHUS43 KLOT 260228
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
928 PM CDT SUN SEP 25 2011

ILZ006-014-INZ001-002-261030-
/O.CON.KLOT.RP.S.0016.110926T0600Z-110926T1500Z/
LAKE IL-COOK-LAKE IN-PORTER-
928 PM CDT SUN SEP 25 2011

...RIP CURRENT RISK REMAINS IN EFFECT FROM 1 AM CDT MONDAY
THROUGH MONDAY MORNING...

* RISK LEVEL...MODERATE FOR THE ILLINOIS AND INDIANA SHORE.

* WAVES...WAVES INCREASING TO 8 TO 12 FT FOR THE ILLINOIS SHORE
  LATE TONIGHT AND WAVES INCREASING TO 4 TO 7 FT FOR THE INDIANA
  SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A MODERATE RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH
PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
460 
WHUS43 KLOT 260820
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
320 AM CDT MON SEP 26 2011

ILZ006-014-261630-
/O.EXT.KLOT.RP.S.0016.000000T0000Z-110926T2000Z/
LAKE IL-COOK-
320 AM CDT MON SEP 26 2011

...RIP CURRENT RISK NOW IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON...

* RISK LEVEL...MODERATE.

* WAVES...WAVES 3 TO 5 FT BUILDING TO 5 TO 8 FT THIS MORNING...THEN
  SUBSIDING TO 4 TO 6 FT LATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A MODERATE RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH
PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$

INZ001-002-261500-
/O.CON.KLOT.RP.S.0016.000000T0000Z-110926T1500Z/
LAKE IN-PORTER-
320 AM CDT MON SEP 26 2011

...RIP CURRENT RISK REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* RISK LEVEL...MODERATE.

* WAVES...WAVES 3 TO 5 FT BUILDING TO 4 TO 7 FT THIS
  MORNING...THEN SUBSIDING TO 2 TO 4 FT LATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A MODERATE RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH
PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM
313 
WHUS43 KLOT 261501
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1001 AM CDT MON SEP 26 2011

...RIP CURRENT RISK IS CANCELLED...

.THE LOW PRESSURE SYSTEM RESPONSIBLE FOR STRONG WINDS OVER LAKE
MICHIGAN HAS TAKEN A MORE WESTERLY TRACK...PRODUCING OFFSHORE FLOW
AND REDUCING THE RISK OF RIP CURRENTS.

ILZ006-014-261615-
/O.CAN.KLOT.RP.S.0016.000000T0000Z-110926T2000Z/
LAKE IL-COOK-
1001 AM CDT MON SEP 26 2011

...RIP CURRENT RISK IS CANCELLED...

THE LOW PRESSURE SYSTEM RESPONSIBLE FOR STRONG WINDS OVER LAKE
MICHIGAN HAS TAKEN A MORE WESTERLY TRACK...PRODUCING OFFSHORE FLOW
AND REDUCING THE RISK OF RIP CURRENTS. HIGH WAVES ARE STILL
EXPECTED THIS MORNING INTO EARLY AFTERNOON...SO ANY SWIMMERS
SHOULD STILL BE CAUTIOUS.

$$

INZ001-002-261615-
/O.CAN.KLOT.RP.S.0016.000000T0000Z-110926T1500Z/
LAKE IN-PORTER-
1001 AM CDT MON SEP 26 2011

...RIP CURRENT RISK IS CANCELLED...

THE LOW PRESSURE SYSTEM RESPONSIBLE FOR STRONG WINDS OVER LAKE
MICHIGAN HAS TAKEN A MORE WESTERLY TRACK...PRODUCING OFFSHORE FLOW
AND REDUCING THE RISK OF RIP CURRENTS. 


$$


PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW RIP CURRENT HAZARD...

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

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 3:19 AM CDTGale WatchLOT6 hr
Sep 25, 9:41 AM CDTGale WarningLOT27 hr

Nearby

Rip Current Statements in Indiana, 2011Rip Current Statements in Illinois, 2011Every rip current statement in 2011

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.