Alert archive / Illinois / Beach Hazards Statements in 2018
Beach Hazards Statement 12, NWS Chicago, IL
NWS Chicago, IL issued this beach hazards statement at Aug 19, 2018, 4:07 PM CDT for Lake County, Illinois. It took effect at Aug 20, 2018, 1:00 AM CDT. It was in force for 62 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2018, 4:07 PM CDT (21:07 UTC)
- In effect from
- Aug 20, 2018, 1:00 AM CDT
- Expired
- Aug 22, 2018, 3:00 PM CDT
- In force
- 62 hr
- Issued by
- NWS Chicago, IL
County Lake County, IL
The radar
The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 21:08 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
Davenport, (KDVN), launched 12:00Z, 9.1 hours before the alert went out and 233 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.
- Mixed-layer CAPE
- 63 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 968 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
798 WHUS43 KLOT 192107 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 407 PM CDT Sun Aug 19 2018 ILZ006-014-200515- /O.NEW.KLOT.BH.S.0012.180820T0600Z-180821T0600Z/ Lake IL-Cook- 407 PM CDT Sun Aug 19 2018 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 1 AM CDT MONDAY THROUGH LATE MONDAY NIGHT... The National Weather Service in Chicago has issued a Beach Hazards Statement...which is in effect from 1 AM CDT Monday through late Monday night. * LOCATION...Lake Michigan beaches in Illinois. * 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... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ Rodriguez
12 follow-up statements
234 WHUS43 KLOT 200226 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 926 PM CDT Sun Aug 19 2018 ILZ006-014-201030- /O.CON.KLOT.BH.S.0012.180820T0600Z-180821T0600Z/ Lake IL-Cook- 926 PM CDT Sun Aug 19 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 AM CDT MONDAY THROUGH LATE MONDAY NIGHT... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 5 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$
060 WHUS43 KLOT 200822 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 322 AM CDT Mon Aug 20 2018 ILZ006-014-201700- /O.CON.KLOT.BH.S.0012.000000T0000Z-180821T0600Z/ Lake IL-Cook- 322 AM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ Kluber
605 WHUS43 KLOT 201618 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 1118 AM CDT Mon Aug 20 2018 ILZ006-014-210030- /O.CON.KLOT.BH.S.0012.000000T0000Z-180821T0600Z/ Lake IL-Cook- 1118 AM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$
845 WHUS43 KLOT 202037 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 337 PM CDT Mon Aug 20 2018 INZ001-002-210445- /O.NEW.KLOT.BH.S.0013.180821T1800Z-180823T0000Z/ Lake IN-Porter- 337 PM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY EVENING... The National Weather Service in Chicago has issued a Beach Hazards Statement...which is in effect from Tuesday afternoon through Wednesday evening. * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 8 feet Tuesday afternoon and evening, 4 to 7 feet Wednesday. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. && $$ ILZ006-014-210445- /O.EXT.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 337 PM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet through tonight, and 4 to 7 feet on Tuesday. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ KMD
553 WHUS43 KLOT 210239 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 939 PM CDT Mon Aug 20 2018 ILZ006-014-211045- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 939 PM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet through tonight, and 5 to 8 feet on Tuesday. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-211045- /O.CON.KLOT.BH.S.0013.180821T1800Z-180823T0000Z/ Lake IN-Porter- 939 PM CDT Mon Aug 20 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...6 to 9 feet Tuesday afternoon and evening, 5 to 8 feet Wednesday. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ Rodriguez
089 WHUS43 KLOT 210910 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 410 AM CDT Tue Aug 21 2018 ILZ006-014-211715- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 410 AM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet through Wednesday morning. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-211715- /O.CON.KLOT.BH.S.0013.180821T1800Z-180823T0000Z/ Lake IN-Porter- 410 AM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 9 feet today and tonight, and 4 to 8 feet Wednesday. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ Kluber
499 WHUS43 KLOT 211403 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 903 AM CDT Tue Aug 21 2018 ILZ006-014-212215- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 903 AM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 8 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-212215- /O.CON.KLOT.BH.S.0013.180821T1800Z-180823T0000Z/ Lake IN-Porter- 903 AM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 9 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ KJB
901 WHUS43 KLOT 212131 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 431 PM CDT Tue Aug 21 2018 ILZ006-014-220545- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 431 PM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 8 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-220545- /O.CON.KLOT.BH.S.0013.000000T0000Z-180823T0000Z/ Lake IN-Porter- 431 PM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 9 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ MTF
563 WHUS43 KLOT 220203 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 903 PM CDT Tue Aug 21 2018 ILZ006-014-221015- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T1800Z/ Lake IL-Cook- 903 PM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...5 to 8 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-221015- /O.CON.KLOT.BH.S.0013.000000T0000Z-180823T0000Z/ Lake IN-Porter- 903 PM CDT Tue Aug 21 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...6 to 10 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ MTF
521 WHUS43 KLOT 220818 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 318 AM CDT Wed Aug 22 2018 ILZ006-014-221630- /O.EXT.KLOT.BH.S.0012.000000T0000Z-180822T2000Z/ Lake IL-Cook- 318 AM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-221630- /O.CON.KLOT.BH.S.0013.000000T0000Z-180823T0000Z/ Lake IN-Porter- 318 AM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...4 to 9 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ - Izzi
360 WHUS43 KLOT 221359 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 859 AM CDT Wed Aug 22 2018 ILZ006-014-222000- /O.CON.KLOT.BH.S.0012.000000T0000Z-180822T2000Z/ Lake IL-Cook- 859 AM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON... * LOCATION...Lake Michigan beaches in Illinois. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...3 to 6 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. 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 the orientation of structures as well as wind and wave direction. For information on swim advisories or bans at Chicago beaches visit: www.cpdbeaches.com. && $$ INZ001-002-222200- /O.CON.KLOT.BH.S.0013.000000T0000Z-180823T0000Z/ Lake IN-Porter- 859 AM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...4 to 9 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ KJB
197 WHUS43 KLOT 222000 CFWLOT LAKESHORE HAZARD MESSAGE National Weather Service Chicago IL 300 PM CDT Wed Aug 22 2018 ILZ006-014-222100- /O.EXP.KLOT.BH.S.0012.000000T0000Z-180822T2000Z/ Lake IL-Cook- 300 PM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT HAS EXPIRED... $$ INZ001-002-230000- /O.CON.KLOT.BH.S.0013.000000T0000Z-180823T0000Z/ Lake IN-Porter- 300 PM CDT Wed Aug 22 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * LOCATION...Lake Michigan beaches of northwest Indiana. * HIGH WAVE ACTION AND DANGEROUS SWIMMING CONDITIONS EXPECTED. * FORECAST WAVE HEIGHTS...4 to 7 feet. * STRONG RIP CURRENTS AND STRUCTURAL CURRENTS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... Life threatening waves and currents are expected at the beaches. People visiting the beaches should stay out of the water. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in sandbars. Rip currents can sweep you into deeper water. Structural currents form along piers where longshore currents and wave action flow into the structure. Structural currents can sweep you into deeper water along the pier structure. Exposed beaches are more likely to experience the most significant wave and current impacts. Impacts at beaches with protective breakwalls or jetties will be subject to the orientation of structures as well as wind and wave direction. && $$ KJB
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 19, 2:43 PM CDT, 1 hour 24 minutes earlier.
Area forecast discussion, Aug 19, 2:43 PM CDT, 1 hour 24 minutes before
Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 243 PM CDT Sun Aug 19 2018 .SHORT TERM... 241 PM CDT Through Monday... For the remainder of the afternoon and into the early evening, the main concern will be isolated showers developing on the lake breeze. Latest radar imagery indicates a few isolated showers developing in a weak convergence zone along the b the lake breeze boundary. oundary. Expect that coverage will generally remain sparse and end with sunset as the boundary and associated convergence wash out. As of 2:15 PM, no lightning has been observed with the showers, but the potential for some lightning cannot be ruled out with 500 J/kg of mixed layer CAPE noted on the latest SPC mesoanalysis. The remainder of the overnight hours should be relatively quiet, with less potential for widespread fog to develop overnight as increasing sely winds develop in the early morning hours and an increasing cirrus canopy overspreads the region from the next upstream system. An unseasonably strong low pressure system is taking shape over eastern Kansas this afternoon. The models have been relatively consistent in the track and strength of the system, though the latest runs are trending slightly faster. Expect that shra/tsra should begin to spread from southwest to northeast across the area, behinning by arnd daybreak in the Pontiac Metro Area and then spreading into the Chicago Metro Area by arnd noon. The airmass associated with this system is still expected to be anomously moist with pwats arnd 2 inches. The coverage and duration of thunderstorms embedded within the main rainshield is the most significant question mark, especially the amount of instability that may occur. Widespread rain and extensive cloudcover could limit destabilization, but should some breaks in the clouds develop, especially in the afternoon, there will be greater thunderstorm potential and the chance for some storms to become strong to severe as there should be moderate shear with sely 10-15 kt winds at the sfc and swly winds of 35 kt at 500 mb. The more pressing concern may be the potential for heavy rainfall and flooding. The main limiting factor for flooding potential could be that the area has seen little widsespread rain and only pockets of heavier rain. However, with pwats at 2 standard deveiations above normal, the potential for heavy rainfall and, at least, localized flooding will need to be closely mornitored tomorrow and into tomorrow night. && .LONG TERM... 241 PM CDT Monday night through Sunday... The primary concern for the period beyond Monday would be associated with the upper low clearing the area during the day Tuesday. Most of the week then appears to be dry and on the seasonably cool side, with the next weather system not approaching until Friday into Saturday. On Monday evening, the center of the upper low and axis of the associated trough would still appear to be upstream of the local forecast area. This will support continued shower and thunderstorm chances into early Tuesday, with locally heavy rain remaining a possibility. By midday Tuesday this feature has shifted east of the area and weak ridging is indicated aloft together with low level advection of drier and cooler air. Models show some additional shortwave energy aloft moving through later in the day Tuesday, but given the unfavorable low level thermodynamics the additional development that afternoon and evening looks to be scattered at most. The exception could be in areas of northwest Indiana downstream of the relatively mild lake where lake induced instability may support more widespread shower activity Tuesday afternoon and evening. After Tuesday evening, a dome of high pressure moves into the area and remains overhead through late in the week. On Wednesday the mild and dry northerly flow on the leading edge of the high should keep most locations in the mid 70s. By Thursday and Friday the center of the high moves east of the area putting us in warmer and more humid flow again. Models disagree on the evolution of return flow and increased precipitation chances late in the week. The faster ECMWF has activity developing early Friday while the GFS focuses more on Friday night into Saturday. Taking both into account spreads the chances from Friday morning into Saturday afternoon with the peak period being Friday evening. Much could change between now and then of course. Additionally, the driver for this activity at this range appears to be a warm front associated with the warm and moist Gulf air, ushered through the area by a center of low pressure moving to our north. Following the passage of this feature, warmer and more humid conditions would be in place for the weekend, with a return to the middle or upper 80s. Lenning && .AVIATION... For the 18Z TAFs... Quiet, dry, vfr conditions will persist for the remainder of the afternoon and the overnight hours. Main forecast concern for the afternoon will be the progression of a lake breeze boundary that has formed along the lakefront. Latest radar imagery indicates that the boundary has not made much inland progression as of 18z, but in the weak pressure gradient regime, expect that it should move inland through the afternoon. With lake water temps near the shore only a few degrees cooler than the land temps, there will not be much push with the boundary and expect that winds will remain below 10 kt following the passage of the boundary. Winds should then diminish and becm sely at 4-7 kt overnight under mostly clear skies. Winds should be adequate to preclude widespread fog overnight except in some sheltered, low-lying areas. For tomorrow, focus will quickly shift to the impacts associated with showers and thunderstorms overspreading the region from southwest to northeast durg the morning hours. While widespread showers are likely, the coverage and duration of thunderstorms is still a bit uncertain. Rainfall rates should also be moderate to heavy at times. So, have ramped up the pcpn mention by going with vcsh at 13-15z and then prevailing shra/vcts by 16-18z, but some of the latest guidance is suggesting that the pcpn onset time may be a little earlier. Have kept the ts mention in prob30 groups for now, but expect that at least tempo ts will be needed and introduced as confidence in timing increases. && .MARINE... 214 AM CDT Primary marine concern will be the unseasonably strong storm system progged to move across the region early in the week. First, should see increasing east to southeast winds Monday as the low deepens and approaches the region. The low is progged to track across southern Lake Michigan late Monday night/early Tuesday morning with northerlies increasing later Monday night over northern portions of the lake with the stronger winds spreading south across the remainder of the lake during the day Tuesday. Given increasing model consensus and likelihood of significant instability with the somewhat cooler air on the back side of the system moving over the very warm lake, have introduced a period of gales into the forecast for Tuesday into Tuesday evening. Very strong lake induced instability should set the stage for lake effect showers and thunderstorms Tuesday night into Wednesday morning, so while synoptic winds will ease Tuesday night, there will likely be some localized winds in squalls in association with the stronger lake effect showers and storms. In addition, lake induced instability looks sufficient for a waterspout risk, especially later Tuesday night into Wednesday morning. - Izzi && .LOT WATCHES/WARNINGS/ADVISORIES... IL...None. IN...None. LM...None. && VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE) FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT: WWW.FACEBOOK.COM/NWSCHICAGO WWW.TWITTER.COM/NWSCHICAGO WWW.YOUTUBE.COM/NWSCHICAGO
Hazardous weather outlook, Aug 19, 4:01 PM CDT, 6 minutes before
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 401 PM CDT Sun Aug 19 2018 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 202115- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 401 PM CDT Sun Aug 19 2018 /501 PM EDT Sun Aug 19 2018/ This Hazardous Weather Outlook is for portions of North Central Illinois...Northeast Illinois and Northwest Indiana. .DAY ONE...Tonight. Weather hazards expected... Limited Thunderstorm Risk. High Swim Risk DISCUSSION... The chance of thunderstorms increases by the predawn hours, mainly for areas west of I-39. Also, strong onshore winds will produce dangerous swim conditions along the Illinois shore, especially starting after midnight. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Limited Severe Thunderstorm Risk. Elevated Flooding Risk. High Swim Risk Tuesday... Limited Thunderstorm Risk. Elevated Lakeshore Flood Risk Wednesday... Limited Lakeshore Flood Risk Friday and Saturday... Limited Thunderstorm Risk. DISCUSSION: Dangerous swim conditions will continue through Monday night for the Illinois shore. The shore of both Illinois and Indiana will see dangerous swim conditions Tuesday and Tuesday night. Lakeshore flooding is possible Tuesday especially for the Indiana shore. There is a chance that some thunderstorms Monday could be strong to severe with damaging winds the primary concern. Locally heavy rain also is possible. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the east at 5 mph. LMZ740>745-202115- 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- 401 PM CDT Sun Aug 19 2018 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Hazardous conditions for small craft are possible. Limited Severe Thunderstorm Risk. Tuesday... Hazardous conditions for small craft are likely. Limited Thunderstorm Risk. Wednesday... Hazardous conditions for small craft are likely. Friday... Limited Thunderstorm Risk. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-202115- 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 Holland to Whitehall MI 5 nm off shore to mid- line of 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- 401 PM CDT Sun Aug 19 2018 This Hazardous Weather Outlook is for portions of the open waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Limited Thunderstorm Risk. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Limited Severe Thunderstorm Risk. Tuesday... Limited Thunderstorm Risk. Friday and Saturday... Limited Thunderstorm Risk. Lenning Visit us at http://weather.gov/chicago Follow us on Facebook, Twitter, and Youtube at: www.facebook.com/nwschicago www.twitter.com/nwschicago www.youtube.com/nwschicago
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 4:21 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, Ford, Grundy, Iroquois, Kane and 8 more | 5 hr |
Nearby
Beach Hazards Statements in Illinois, 2018Every beach hazards statement in 2018
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.