Alert archive / Illinois / Beach Hazards Statements in 2021
Beach Hazards Statement 7, NWS Chicago, IL
NWS Chicago, IL issued this beach hazards statement at Jul 10, 2021, 11:06 AM CDT for Lake County, Indiana; Cook County, Lake County, Illinois. It took effect at Jul 11, 2021, 1:00 AM CDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2021, 11:06 AM CDT (16:06 UTC)
- In effect from
- Jul 11, 2021, 1:00 AM CDT
- Expired
- Jul 12, 2021, 3:04 AM CDT
- In force
- 26 hr
- Issued by
- NWS Chicago, IL
Counties Cook County, IL, Lake County, IL, Lake County, IN
The radar
The Chicago radar (KLOT), 51 km from the middle of the area, began a volume at 16:06 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, 4.1 hours before the alert went out and 212 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 952 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
122 WHUS43 KLOT 101606 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 1106 AM CDT Sat Jul 10 2021 ILZ006-103-104-110015- /O.NEW.KLOT.BH.S.0007.210711T0600Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 1106 AM CDT Sat Jul 10 2021 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IL, Northern and Central Cook Counties. * WHEN...From late tonight through late Sunday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Wave heights of up to 4 to 6 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ Carlaw
7 follow-up statements
940 WHUS43 KLOT 101954 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 254 PM CDT Sat Jul 10 2021 ILZ006-103-104-110500- /O.CON.KLOT.BH.S.0007.210711T0600Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 254 PM CDT Sat Jul 10 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IL, Northern and Central Cook Counties. * WHEN...From late tonight through late Sunday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Wave heights of up to 4 to 7 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ Carlaw
226 WHUS43 KLOT 110237 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 937 PM CDT Sat Jul 10 2021 ILZ006-103-104-111045- /O.CON.KLOT.BH.S.0007.210711T0600Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 937 PM CDT Sat Jul 10 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 1 AM CDT SUNDAY THROUGH LATE SUNDAY NIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IL, Northern and Central Cook Counties. * WHEN...From late tonight through late Sunday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Wave heights of up to 4 to 7 feet and possibly higher are expected. Stay dry when waves are high!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$
543 WHUS43 KLOT 111012 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 512 AM CDT Sun Jul 11 2021 INZ001-111815- /O.EXB.KLOT.BH.S.0007.210711T1200Z-210712T0300Z/ Lake IN- 512 AM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IN County. * WHEN...Through this evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www.cpdbeaches.com. * ADDITIONAL DETAILS...Wave heights of up to 3 to 5 feet and possibly higher are expected. Stay dry when waves are high!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ ILZ006-103-104-111815- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 512 AM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IL, Northern and Central Cook Counties. * WHEN...From late tonight through late Sunday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Wave heights of up to 3 to 6 feet and possibly higher are expected. Stay dry when waves are high!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$
317 WHUS43 KLOT 111512 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 1012 AM CDT Sun Jul 11 2021 ILZ006-103-104-112315- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 1012 AM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Northern Cook, Lake IL and Central Cook Counties. * WHEN...Through late tonight. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Waves to 6 feet and possibly higher are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ INZ001-112315- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0300Z/ Lake IN- 1012 AM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IN County. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. * ADDITIONAL DETAILS...Waves to 5 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$
531 WHUS43 KLOT 111956 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 256 PM CDT Sun Jul 11 2021 ILZ006-103-104-120500- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 256 PM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Northern Cook, Lake IL and Central Cook Counties. * WHEN...Through late tonight. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Waves to 6 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ INZ001-120300- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0300Z/ Lake IN- 256 PM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...Lake IN County. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. * ADDITIONAL DETAILS...Waves to 5 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ Carlaw
687 WHUS43 KLOT 120253 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 953 PM CDT Sun Jul 11 2021 INZ001-120400- /O.EXP.KLOT.BH.S.0007.000000T0000Z-210712T0300Z/ Lake IN- 953 PM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 10 PM CDT THIS EVENING... Waves continue to subside. As a result, the Beach Hazards Statement will be allowed to expire. $$ ILZ006-103-104-120900- /O.CON.KLOT.BH.S.0007.000000T0000Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 953 PM CDT Sun Jul 11 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM CDT MONDAY... * WHAT...High wave action and dangerous currents. * WHERE...Illinois beaches along Lake Michigan. * WHEN...Until 4 AM CDT Monday. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www.cpdbeaches.com. * ADDITIONAL DETAILS...Waves of 3 to 5 feet are expected. Stay dry when waves are high! PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ Petr
536 WHUS43 KLOT 120804 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 304 AM CDT Mon Jul 12 2021 ILZ006-103-104-120915- /O.CAN.KLOT.BH.S.0007.000000T0000Z-210712T0900Z/ Lake IL-Northern Cook-Central Cook- 304 AM CDT Mon Jul 12 2021 ...BEACH HAZARDS STATEMENT IS CANCELLED... Waves have dropped below 2 feet across southern Lake Michigan beaches. $$
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 2:53 PM CDT | Small Craft Advisory | LOT | 31 hr |
Nearby
Beach Hazards Statements in Illinois, 2021Beach Hazards Statements in Indiana, 2021Every beach hazards statement in 2021
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.