Alert archive / Illinois / Beach Hazards Statements in 2021
Beach Hazards Statement 8, NWS Chicago, IL
NWS Chicago, IL issued this beach hazards statement at Jul 19, 2021, 3:52 PM CDT for Cook County, Lake County, Illinois; Lake County, Porter County, Indiana. It took effect at Jul 20, 2021, 7:00 PM CDT. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Jul 19, 2021, 3:52 PM CDT (20:52 UTC)
- In effect from
- Jul 20, 2021, 7:00 PM CDT
- Expired
- Jul 21, 2021, 12:00 PM CDT
- In force
- 17 hr
- Issued by
- NWS Chicago, IL
Counties Cook County, IL, Lake County, IL, Lake County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 54 km from the middle of the area, began a volume at 20:51 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, 8.9 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.
- Mixed-layer CAPE
- 57 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
081 WHUS43 KLOT 192052 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 352 PM CDT Mon Jul 19 2021 ILZ006-103>105-INZ001-002-200500- /O.NEW.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Southern Cook-Lake IN-Porter- 352 PM CDT Mon Jul 19 2021 ...BEACH HAZARDS STATEMENT IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Lake IL, Northern Cook, Central Cook and Southern Cook Counties. * WHEN...From Tuesday evening through Wednesday morning. * 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 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. && $$
8 follow-up statements
695 WHUS43 KLOT 200230 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 930 PM CDT Mon Jul 19 2021 ILZ006-103>105-INZ001-002-201030- /O.CON.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Southern Cook-Lake IN-Porter- 930 PM CDT Mon Jul 19 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Northern Cook, Central Cook, Southern Cook and Lake IL Counties. * WHEN...From Tuesday evening through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Waves 4 to 6 feet are expected. Stay dry when waves are high. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$
880 WHUS43 KLOT 200824 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 324 AM CDT Tue Jul 20 2021 ILZ006-103>105-INZ001-002-201700- /O.CON.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Southern Cook-Lake IN-Porter- 324 AM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Northern Cook, Central Cook, Southern Cook and Lake IL Counties. * WHEN...From this evening through Wednesday morning. * 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 3 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. && $$ Carlaw
962 WHUS43 KLOT 201340 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 840 AM CDT Tue Jul 20 2021 ILZ105-201445- /O.CAN.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Southern Cook- 840 AM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT IS CANCELLED... A Beach Hazard Statement is in effect for northern and central Cook County. $$ ILZ006-103-104-INZ001-002-202145- /O.CON.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 840 AM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake and Porter Counties. In Illinois, Northern Cook, Central Cook and Lake IL Counties. * WHEN...From this evening through Wednesday morning. * 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 3 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. && $$
640 WHUS43 KLOT 201511 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 1011 AM CDT Tue Jul 20 2021 ILZ006-103-104-INZ001-002-202315- /O.CON.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 1011 AM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake and Porter Counties. In Illinois, Northern Cook, Central Cook and Lake IL Counties. * WHEN...From this evening through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Waves 3 to 6 feet are expected. Stay dry when waves are high. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$ Castro
653 WHUS43 KLOT 202028 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 328 PM CDT Tue Jul 20 2021 ILZ006-103-104-INZ001-002-210430- /O.CON.KLOT.BH.S.0008.210721T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 328 PM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake and Porter Counties. In Illinois, Northern Cook, Central Cook and Lake IL Counties. * WHEN...From 7 PM CDT this evening through Wednesday morning. * 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 3 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. && $$
182 WHUS43 KLOT 210312 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 1012 PM CDT Tue Jul 20 2021 ILZ006-103-104-INZ001-002-211115- /O.CON.KLOT.BH.S.0008.000000T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 1012 PM CDT Tue Jul 20 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Northern Cook, Lake IL and Central Cook Counties. * WHEN...Through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. * ADDITIONAL DETAILS...Waves 3 to 6 feet are expected. Stay dry when waves are high. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. && $$
805 WHUS43 KLOT 210839 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 339 AM CDT Wed Jul 21 2021 ILZ006-103-104-INZ001-002-211700- /O.CON.KLOT.BH.S.0008.000000T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 339 AM CDT Wed Jul 21 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL NOON CDT TODAY... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. * WHERE...In Indiana, Lake IN and Porter Counties. In Illinois, Northern Cook, Lake IL and Central Cook Counties. * WHEN...Through this morning. * 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 3 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. && $$ Carlaw
740 WHUS43 KLOT 211652 CFWLOT Coastal Hazard Message National Weather Service Chicago IL 1152 AM CDT Wed Jul 21 2021 ILZ006-103-104-INZ001-002-211800- /O.EXP.KLOT.BH.S.0008.000000T0000Z-210721T1700Z/ Lake IL-Northern Cook-Central Cook-Lake IN-Porter- 1152 AM CDT Wed Jul 21 2021 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT NOON CDT TODAY... Wave heights have subsided enough to reduce the swimming danger at Lake Michigan beaches from waves and currents. However, breaking waves and lingering currents will still pose some hazard, especially for inexperienced swimmers. $$
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 3:25 PM CDT | Small Craft Advisory | LOT | 40 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.