Alert archive / Indiana / Rip Current Statements in 2011

Rip Current Statement 6, NWS Chicago, IL

July 23, 2011Lake County, Porter County, Indiana

NWS Chicago, IL issued this rip current statement at Jul 23, 2011, 8:09 AM CDT for Lake County, Porter County, Indiana. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jul 23, 2011, 8:09 AM CDT (13:09 UTC)
Expired
Jul 23, 2011, 2:29 PM CDT
In force
6 hr
Issued by
NWS Chicago, IL

Counties Lake County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 13:11 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, 1.2 hours before the alert went out and 189 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 2011-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2622 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 2011-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
2622 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
869 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
64 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.

505 
WHUS43 KLOT 231309
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
809 AM CDT SAT JUL 23 2011

...RIP CURRENTS POSSIBLE THROUGH THIS EVENING...

.SHOWERS AND THUNDERSTORMS FROM EARLIER THIS MORNING CREATED
ELEVATED WINDS AND WAVES OVER LAKE MICHIGAN. DESPITE THE SOUTH
WINDS EXPECTED THIS MORNING AND AFTERNOON IN THE NEARSHORE
ENVIRONMENT...RIP CURRENTS ARE POSSIBLE TODAY THROUGH THIS EVENING.

INZ001-002-232115-
/O.NEW.KLOT.RP.S.0006.110723T1309Z-110724T0000Z/
LAKE IN-PORTER-
809 AM CDT SAT JUL 23 2011

...RIP CURRENT RISK IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...UNTIL THIS EVENING. 

* IMPACTS...INCREASED THREAT OF RIP CURRENTS. 

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
1 follow-up statement
790 
WHUS43 KLOT 231929
CFWLOT

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
229 PM CDT SAT JUL 23 2011

INZ001-002-232030-
/O.CAN.KLOT.RP.S.0006.000000T0000Z-110724T0000Z/
LAKE IN-PORTER-
229 PM CDT SAT JUL 23 2011

...RIP CURRENT RISK IS CANCELLED...

THERE IS NO LONGER AN INCREASED THREAT OF RIP CURRENTS...WITH
WINDS AND WAVES CONTINUING TO BOTH DIMINISH AND SUBSIDE THIS
AFTERNOON.

$$


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
Jul 22, 10:20 PM CDTFlash Flood WarningLOTJasper, Lake, Newton, Porter6 hr
Jul 23, 1:19 AM CDTFlash Flood WarningLOTLake6 hr
Jul 23, 2:37 AM CDTFlash Flood WarningLOTLake, Porter5 hr
Jul 23, 3:40 AM CDTHeat AdvisoryLOTLake, Porter32 hr
Jul 23, 7:30 AM CDTFlash Flood WarningLOTLake4 hr
Jul 23, 4:15 PM CDTFlash Flood WatchLOTLake, Porter18 hr
Jul 23, 5:27 PM CDTSpecial Weather StatementLOTJasper33 min
Jul 23, 6:41 PM CDTAreal Flood AdvisoryLOTJasper, Newton3 hr

Nearby

Rip Current Statements in Indiana, 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.