Alert archive / Illinois / Blizzard Warnings in 2018
Blizzard Warning 1, NWS Chicago, IL
NWS Chicago, IL issued this blizzard warning at Nov 25, 2018, 11:37 AM CST for 11 counties in Illinois. It took effect at Nov 25, 2018, 6:00 PM CST. It was in force for 12 hr. 57 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 25, 2018, 11:37 AM CST (17:37 UTC)
- In effect from
- Nov 25, 2018, 6:00 PM CST
- Expired
- Nov 26, 2018, 6:00 AM CST
- In force
- 12 hr
- Issued by
- NWS Chicago, IL
Counties Boone County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Kane County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, McHenry County, IL, Ogle County, IL
The radar
The Chicago radar (KLOT), 54 km from the middle of the area, began a volume at 17:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 25, 6:10 PM CST | SNOW 2 | Mendota, IL | SNOW FELL IN 40 MINUTES. |
| Nov 25, 6:15 PM CST | SNOW 6 | Wonder Lake, IL | |
| Nov 25, 6:57 PM CST | SNOW 1.8 | Batavia, IL | SNOWFALL OVER THE PAST HOUR. |
| Nov 25, 7:30 PM CST | SNOW 5 | Capron, IL | 2.1 MEASURED IN THE PAST 90 MINUTES. |
| Nov 25, 7:30 PM CST | HEAVY SNOW 5.5 | Dixon, IL | PUBLIC REPORT RELAYED BY WTVO ROCKFORD. |
| Nov 25, 7:30 PM CST | HEAVY SNOW 9 | Polo, IL | PUBLIC REPORT RELAYED BY WTVO ROCKFORD. |
| Nov 25, 7:48 PM CST | HEAVY SNOW 7 | Rochelle, IL | |
| Nov 25, 8:00 PM CST | HEAVY SNOW 2.7 | Batavia, IL | 0.9 IN THE PAST 60 MINUTES. |
| Nov 25, 8:00 PM CST | SNOW 3 | 3 N Aurora, IL | 1 IN THE PAST HOUR. |
| Nov 25, 8:00 PM CST | HEAVY SNOW 6 | 3 Wnw Sublette, IL | |
| Nov 25, 8:00 PM CST | HEAVY SNOW 12.5 | Mount Morris, IL | VIA FACEBOOK. |
| Nov 25, 8:10 PM CST | HEAVY SNOW 8 | 1 Nnw Marengo, IL | STILL SNOWING. |
| Nov 25, 8:20 PM CST | HEAVY SNOW 2.5 | 4 W Montgomery, IL | |
| Nov 25, 8:20 PM CST | HEAVY SNOW 10 | Forreston, IL | PUBLIC REPORT RELAYED BY WTVO ROCKFORD. |
| Nov 25, 8:20 PM CST | HEAVY SNOW 10.6 | 2 Ene Woodstock, IL | 3.8 INCHES IN THE PAST 4 HOURS. |
| Nov 25, 8:28 PM CST | HEAVY SNOW 6 | 1 Sw De Kalb, IL | 2.0 INCHES IN THE PAST HOUR. |
| Nov 25, 8:30 PM CST | HEAVY SNOW 2 | Clarendon Hills, IL | |
| Nov 25, 8:30 PM CST | HEAVY SNOW 4 | Grayslake, IL | |
| Nov 25, 8:30 PM CST | HEAVY SNOW 4.3 | 1 E Round Lake Beach, IL | MEASURED AT INTERSECTION OF RT 83 AND ROLLINS RD. |
| Nov 25, 8:45 PM CST | HEAVY SNOW 9.5 | Oregon, IL | REPORT RELAYED FROM WTVO ROCKFORD. |
| Nov 25, 8:50 PM CST | HEAVY SNOW 7 | 1 Nnw Lindenhurst, IL | 2.1 INCHES IN THE PAST 2 HOURS, STILL SNOWING MODERATELY. |
| Nov 25, 9:00 PM CST | HEAVY SNOW 2 | Saint Charles, IL | PUBLIC REPORT RELAYED BY WGN TV. |
| Nov 25, 9:00 PM CST | HEAVY SNOW 3.3 | Batavia, IL | 0.6 IN THE PAST HOUR. |
| Nov 25, 9:00 PM CST | HEAVY SNOW 3.5 | 3 N Aurora, IL | STILL SNOWING VERY HARD. |
| Nov 25, 9:00 PM CST | HEAVY SNOW 3.5 | Saint Charles, IL | |
| Nov 25, 9:00 PM CST | HEAVY SNOW 7 | 0.7 Sw De Kalb, IL | 1.0 IN THE PAST HOUR. |
| Nov 25, 9:00 PM CST | HEAVY SNOW 9.4 | 5 Nnw Woodstock, IL | STILL SNOWING. |
| Nov 25, 9:15 PM CST | HEAVY SNOW 1 | Morris, IL | FELL IN THE PAST HOUR. |
| Nov 25, 9:25 PM CST | HEAVY SNOW 4 | 1.5 Ne North Aurora, IL | |
| Nov 25, 9:30 PM CST | HEAVY SNOW 5.5 | Mendota, IL | THIS FELL IN 4 HOURS. |
| Nov 25, 9:30 PM CST | HEAVY SNOW 7 | Capron, IL | 1.9 INCHES IN THE PAST HOUR. |
| Nov 25, 9:30 PM CST | HEAVY SNOW 8 | 1 Wnw Long Lake, IL | REPORTED AT INGLESIDE, IL VIA FACEBOOK. |
| Nov 25, 9:45 PM CST | HEAVY SNOW 11.8 | 2.5 Wnw Bull Valley, IL | |
| Nov 25, 10:00 PM CST | HEAVY SNOW 3.5 | 3 Nnw Sugar Grove, IL | VERY WET SNOW, LOTS OF COMPACTION. |
| Nov 25, 10:00 PM CST | HEAVY SNOW 4.1 | Batavia, IL | 0.8 INCHES IN THE PAST HOUR. |
| Nov 25, 10:00 PM CST | HEAVY SNOW 7 | Genoa, IL | VIA FACEBOOK. |
| Nov 25, 10:00 PM CST | HEAVY SNOW 7.5 | 0.7 Sw De Kalb, IL | 0.5 INCHES FELL IN THE PAST HOUR. |
| Nov 25, 10:00 PM CST | HEAVY SNOW 7.8 | Mchenry, IL | VIA FACEBOOK. |
| Nov 25, 10:00 PM CST | HEAVY SNOW 11.2 | Oregon, IL | REPORT RELAYED BY WTVO ROCKFORD. |
| Nov 25, 10:36 PM CST | HEAVY SNOW 9 | Kirkland, IL | VIA FACEBOOK. |
| Nov 25, 10:40 PM CST | HEAVY SNOW 4 | Lombard, IL | VIA FACEBOOK FROM SOUTHEAST LOMBARD. |
| Nov 25, 11:00 PM CST | HEAVY SNOW 4.5 | 3 Nnw Sugar Grove, IL | 1 INCH IN THE PAST HOUR. NEAR BLIZZARD CONDITIONS WITH HEAVY WET SNOW CONTINUING. |
| Nov 25, 11:00 PM CST | HEAVY SNOW 4.7 | Batavia, IL | 0.6 INCH IN THE PAST HOUR. EXTREMELY WET SNOW, OBSERVER HAS NEVER NOTED TREE BRANCHES AS WEIGHED DOWN THIS MUCH BY SNOW. |
| Nov 25, 11:00 PM CST | HEAVY SNOW 5.5 | Saint Charles, IL | VERY WET HEAVY SNOW. |
| Nov 25, 11:00 PM CST | HEAVY SNOW 8.3 | 0.7 Sw De Kalb, IL | 0.8 IN THE PAST HOUR, STILL SNOWING HARD. |
| Nov 26, 12:00 AM CST | HEAVY SNOW 5.1 | Batavia, IL | 0.4 INCHES IN THE PAST HOUR. |
| Nov 26, 12:00 AM CST | HEAVY SNOW 7 | Carpentersville, IL | VIA SOCIAL MEDIA. |
| Nov 26, 12:00 AM CST | HEAVY SNOW 9 | 1 Se Sunnyside, IL | REPORTED AT JOHNSBURG, IL VIA SOCIAL MEDIA. |
| Nov 26, 12:45 AM CST | HEAVY SNOW 9.1 | 1 Wnw De Kalb, IL | |
| Nov 26, 4:25 AM CST | HEAVY SNOW 4.1 | Downers Grove, IL | |
| Nov 26, 4:40 AM CST | HEAVY SNOW 9 | Lindenhurst, IL | |
| Nov 26, 5:00 AM CST | HEAVY SNOW 9 | 0.1 N Capron, IL | |
| Nov 26, 5:23 AM CST | HEAVY SNOW 10.9 | Marengo, IL | |
| Nov 26, 5:35 AM CST | HEAVY SNOW 11.5 | Woodstock, IL | |
| Nov 26, 6:00 AM CST | SNOW 4 | 2 Ne Somonauk, IL | 0.24 INCHES SNOW WATER EQUIVALENT. |
| Nov 26, 6:00 AM CST | HEAVY SNOW 7.4 | Crystal Lake, IL | |
| Nov 26, 6:00 AM CST | HEAVY SNOW 7.6 | Crystal Lake, IL | CORRECTS PREVIOUS HEAVY SNOW REPORT FROM CRYSTAL LAKE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 5.6 hours before the alert went out and 159 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
- 967 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
040 WWUS43 KLOT 251737 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 1137 AM CST Sun Nov 25 2018 ILZ004-005-008-010>012-260145- /O.UPG.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ /O.NEW.KLOT.BZ.W.0001.181126T0000Z-181126T1200Z/ Boone-McHenry-Ogle-Lee-DeKalb-Kane- Including the cities of Belvidere, Woodstock, Oregon, Dixon, DeKalb, Aurora, and Elgin 1137 AM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 50 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 6 to 12 inches are expected. * WHERE...Portions of north central and northeast Illinois. * WHEN...From 6 PM this evening to 6 AM CST Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ020-260145- /O.UPG.KLOT.WS.W.0003.181125T2100Z-181126T1500Z/ /O.NEW.KLOT.BZ.W.0001.181126T0000Z-181126T1200Z/ Kendall- Including the city of Oswego 1137 AM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 5 to 9 inches are expected. * WHERE...Kendall County. * WHEN...From 6 PM this evening to 6 AM CST Monday, with the worst conditions from 9 PM Sunday to 4 AM Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ006-260145- /O.UPG.KLOT.WS.W.0003.181125T1800Z-181126T1500Z/ /O.NEW.KLOT.BZ.W.0001.181126T0000Z-181126T1200Z/ Lake IL- Including the city of Waukegan 1137 AM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 7 to 11 inches are expected. * WHERE...Lake IL County. * WHEN...From 6 PM this evening to 6 AM CST Monday, with the worst conditions from with the worst conditions from 9 PM Sunday to 4 AM Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ019-260145- /O.UPG.KLOT.WS.W.0003.181125T1800Z-181126T1200Z/ /O.NEW.KLOT.BZ.W.0001.181126T0000Z-181126T1200Z/ La Salle- Including the city of Ottawa 1137 AM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 50 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 5 to 9 inches are expected. * WHERE...La Salle County. * WHEN...From 6 PM this evening to 6 AM CST Monday, with the worst conditions from 10 PM Sunday to 4 AM Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ013-014-260145- /O.EXT.KLOT.WS.W.0003.181126T0000Z-181126T1500Z/ DuPage-Cook- Including the cities of Wheaton and Chicago 1137 AM CST Sun Nov 25 2018 ...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST MONDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 9 inches, with localized amounts up to 12 inches, are expected. Lower amounts across southeast Cook County and downtown Chicago. * WHERE...Cook and DuPage Counties. * WHEN...From 6 PM this evening to 9 AM CST Monday, with the worst conditions from 9 PM Sunday to 4 AM Monday. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ021-022-260145- /O.EXT.KLOT.WS.W.0003.181126T0000Z-181126T1500Z/ Grundy-Will- Including the cities of Morris and Joliet 1137 AM CST Sun Nov 25 2018 ...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST MONDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 6 inches, with localized amounts up to 9 inches, are expected. Winds gusting as high as 45 mph. * WHERE...Grundy and Will Counties. * WHEN...From 6 PM this evening to 9 AM CST Monday, with the worst conditions from 10 PM Sunday to 6 AM Monday. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ003-260145- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ Winnebago- Including the city of Rockford 1137 AM CST Sun Nov 25 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...Heavy snow. Additional snow accumulations of 6 to 10 inches are expected. Near whiteout conditions possible. * WHERE...Winnebago County. * WHEN...Until 6 AM CST Monday, with the worst conditions from 7 PM Sunday to 3 AM Monday. * ADDITIONAL DETAILS...A band of snow is expected this morning into early this afternoon with some snow accumulation possible. The very heavy snow is expected to develop this afternoon and continue into tonight. Travel will be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ023-032-260145- /O.CON.KLOT.WW.Y.0021.181126T0300Z-181126T1500Z/ Kankakee-Livingston- Including the cities of Kankakee and Pontiac 1137 AM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY... * WHAT...Snow expected. Blowing snow possible. Total snow accumulations of 2 to 4 inches are expected. * WHERE...Kankakee and Livingston Counties. * WHEN...From 9 PM this evening to 9 AM CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ INZ001-002-260145- /O.CON.KLOT.WW.Y.0021.181126T0500Z-181126T1800Z/ Lake IN-Porter- Including the cities of Gary and Valparaiso 1137 AM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO NOON CST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds gusting as high as 45 mph, with gusts to 50 mph or more possible near the Lake Michigan shore. * WHERE...Lake IN and Porter Counties. * WHEN...From 11 PM this evening to noon CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. * The strong winds will blow unsecured outdoor objects around and could cause minor tree damage, especially near the Lake Michigan shore. High profile vehicles will experience further difficulties, particularly on west to east roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
4 follow-up statements
929 WWUS43 KLOT 252132 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 332 PM CST Sun Nov 25 2018 ILZ021-022-260545- /O.UPG.KLOT.WS.W.0003.181126T0000Z-181126T1500Z/ /O.EXB.KLOT.BZ.W.0001.181126T0000Z-181126T1500Z/ Grundy-Will- Including the cities of Morris and Joliet 332 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT UNTIL 9 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 4 to 8 inches, with localized amounts up to 10 inches, are expected. * WHERE...Grundy and Will Counties. * WHEN...Until 9 AM CST Monday. Conditions will likely ramp up mid evening and overnight. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ013-014-260545- /O.UPG.KLOT.WS.W.0003.181126T0000Z-181126T1500Z/ /O.EXB.KLOT.BZ.W.0001.181126T0000Z-181126T1500Z/ DuPage-Cook- Including the cities of Wheaton and Chicago 332 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING IN EFFECT UNTIL 9 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 7 to 11 inches, with localized amounts up to 13 inches, are expected. * WHERE...DuPage and Cook Counties. * WHEN...Until 9 AM CST Monday. Conditions ramping up between 6 PM and 9 PM this evening, first across northwest areas. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ004>006-008-010>012-019-020-260545- /O.CON.KLOT.BZ.W.0001.181126T0000Z-181126T1200Z/ Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-La Salle-Kendall- Including the cities of Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Ottawa, and Oswego 332 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 8 to 12 inches are expected, localized higher amounts. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 6 AM CST Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ003-260545- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ Winnebago- Including the city of Rockford 332 PM CST Sun Nov 25 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...Heavy snow. Winds will gust to near 35 mph. Additional snow accumulations of 7 to 10 inches are expected. * WHERE...Winnebago County. * WHEN...Until 6 AM CST Monday. * ADDITIONAL DETAILS...A band of snow will continue this afternoon. Additional very heavy snow is expected to develop this afternoon and continue into tonight. Travel will be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ023-032-260545- /O.CON.KLOT.WW.Y.0021.181126T0300Z-181126T1500Z/ Kankakee-Livingston- Including the cities of Kankakee and Pontiac 332 PM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds will gust to 40 to 45 mph. * WHERE...Kankakee and Livingston Counties. * WHEN...From 9 PM this evening to 9 AM CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ INZ001-002-260545- /O.CON.KLOT.WW.Y.0021.181126T0500Z-181126T1800Z/ Lake IN-Porter- Including the cities of Gary and Valparaiso 332 PM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO NOON CST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds will gust to 45 mph. * WHERE...Lake IN and Porter Counties. * WHEN...From 11 PM this evening to noon CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. * The strong winds will blow unsecured outdoor objects around and could cause minor tree damage, especially near the Lake Michigan shore. High profile vehicles will experience further difficulties, particularly on west to east roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
997 WWUS43 KLOT 260341 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 941 PM CST Sun Nov 25 2018 ILZ004>006-008-010>012-019-020-261045- /O.CON.KLOT.BZ.W.0001.000000T0000Z-181126T1200Z/ Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-La Salle-Kendall- Including the cities of Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Ottawa, and Oswego 941 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 8 to 12 inches are expected, localized higher amounts. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 6 AM CST Monday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ013-014-261045- /O.CON.KLOT.BZ.W.0001.000000T0000Z-181126T1500Z/ DuPage-Cook- Including the cities of Wheaton and Chicago 941 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 7 to 11 inches, with localized amounts up to 13 inches, are expected. * WHERE...DuPage and Cook Counties. * WHEN...Until 9 AM CST Monday. Conditions ramping up between 6 PM and 9 PM this evening, first across northwest areas. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are possible. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ021-022-261045- /O.CON.KLOT.BZ.W.0001.000000T0000Z-181126T1500Z/ Grundy-Will- Including the cities of Morris and Joliet 941 PM CST Sun Nov 25 2018 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM CST MONDAY... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 4 to 8 inches, with localized amounts up to 10 inches, are expected. * WHERE...Grundy and Will Counties. * WHEN...Until 9 AM CST Monday. Conditions will likely ramp up mid evening and overnight. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ003-261045- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ Winnebago- Including the city of Rockford 941 PM CST Sun Nov 25 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... * WHAT...Heavy snow. Winds will gust to near 35 mph. Total snow accumulation 7 to 14 inches are expected. * WHERE...Winnebago County. * WHEN...Until 6 AM CST Monday. * ADDITIONAL DETAILS...A band of snow will continue this afternoon. Additional very heavy snow is expected to develop this afternoon and continue into tonight. Travel will be very difficult. Snow covered roads and significantly reduced visibility are expected. Snowfall rates in excess of 2 inches per hour are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ023-032-261045- /O.CON.KLOT.WW.Y.0021.000000T0000Z-181126T1500Z/ Kankakee-Livingston- Including the cities of Kankakee and Pontiac 941 PM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds will gust to 40 to 45 mph. * WHERE...Kankakee and Livingston Counties. * WHEN...From 9 PM this evening to 9 AM CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ INZ001-002-261045- /O.CON.KLOT.WW.Y.0021.181126T0500Z-181126T1800Z/ Lake IN-Porter- Including the cities of Gary and Valparaiso 941 PM CST Sun Nov 25 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds will gust to 45 mph. * WHERE...Lake IN and Porter Counties. * WHEN...From 11 PM this evening to noon CST Monday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. * The strong winds will blow unsecured outdoor objects around and could cause minor tree damage, especially near the Lake Michigan shore. High profile vehicles will experience further difficulties, particularly on west to east roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
745 WWUS43 KLOT 260923 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 323 AM CST Mon Nov 26 2018 ILZ013-014-261500- /O.CAN.KLOT.BZ.W.0001.000000T0000Z-181126T1500Z/ /O.EXB.KLOT.WS.W.0003.000000T0000Z-181126T1500Z/ DuPage-Cook- Including the cities of Wheaton and Chicago 323 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of up to two inches. Winds gusting as high as 45 mph. * WHERE...DuPage and Cook Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Travel may be very difficult. Snow covered roads and reduced visibility are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ021-022-261500- /O.CAN.KLOT.BZ.W.0001.000000T0000Z-181126T1500Z/ /O.EXB.KLOT.WS.W.0003.000000T0000Z-181126T1500Z/ Grundy-Will- Including the cities of Morris and Joliet 323 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of up to two inches. Winds gusting as high as 40 mph. * WHERE...Grundy and Will Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ004>006-008-010>012-019-020-261200- /O.CON.KLOT.BZ.W.0001.000000T0000Z-181126T1200Z/ Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-La Salle-Kendall- Including the cities of Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Ottawa, and Oswego 323 AM CST Mon Nov 26 2018 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Blizzard conditions expected. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely. Total snow accumulations of 8 to 12 inches are expected, localized higher amounts. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 6 AM CST this morning. * ADDITIONAL DETAILS...Travel will be very dangerous. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ003-261200- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ Winnebago- Including the city of Rockford 323 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Snow. Winds will gust to near 35 mph. * WHERE...Winnebago County. * WHEN...Until 6 AM CST this morning. * ADDITIONAL DETAILS...A band of snow will continue this afternoon. Travel will be very difficult. Snow covered roads are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ023-032-261500- /O.CON.KLOT.WW.Y.0021.000000T0000Z-181126T1500Z/ Kankakee-Livingston- Including the cities of Kankakee and Pontiac 323 AM CST Mon Nov 26 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches are expected. Winds will gust to 40 to 45 mph. * WHERE...Kankakee and Livingston Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ INZ001-002-261730- /O.CON.KLOT.WW.Y.0021.000000T0000Z-181126T1800Z/ Lake IN-Porter- Including the cities of Gary and Valparaiso 323 AM CST Mon Nov 26 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Snow expected. Total snow accumulations of 2 to 3 inches are expected. Winds will gust to 45 mph. * WHERE...Lake IN and Porter Counties. * WHEN...Until noon CST today. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. * The strong winds will blow unsecured outdoor objects around and could cause minor tree damage, especially near the Lake Michigan shore. High profile vehicles will experience further difficulties, particularly on west to east roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
274 WWUS43 KLOT 261206 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 606 AM CST Mon Nov 26 2018 ILZ004>006-008-010>012-019-020-261315- /O.EXP.KLOT.BZ.W.0001.000000T0000Z-181126T1200Z/ Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-La Salle-Kendall- Including the cities of Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Ottawa, and Oswego 606 AM CST Mon Nov 26 2018 ...BLIZZARD WARNING HAS EXPIRED... Northwest winds will slowly diminish this morning. $$ ILZ003-261315- /O.EXP.KLOT.WS.W.0003.000000T0000Z-181126T1200Z/ Winnebago- Including the city of Rockford 606 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING HAS EXPIRED... The winter storm warning is no longer in effect. $$ ILZ013-014-261500- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1500Z/ DuPage-Cook- Including the cities of Wheaton and Chicago 606 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to two inches. Winds gusting as high as 45 mph. * WHERE...DuPage and Cook Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Travel may be very difficult. Snow covered roads and reduced visibility are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ021-022-261500- /O.CON.KLOT.WS.W.0003.000000T0000Z-181126T1500Z/ Grundy-Will- Including the cities of Morris and Joliet 606 AM CST Mon Nov 26 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to two inches. Winds gusting as high as 45 mph. * WHERE...Grundy and Will Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Travel could be very difficult. Snow covered roads and significantly reduced visibility are expected. This snow is expected to be very heavy and will be difficult to shovel. The strong winds and heavy snow may cause falling tree limbs and possible power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ ILZ023-032-261500- /O.CON.KLOT.WW.Y.0021.000000T0000Z-181126T1500Z/ Kankakee-Livingston- Including the cities of Kankakee and Pontiac 606 AM CST Mon Nov 26 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow expected. Total snow accumulations 2 to 4 inches are expected. Winds will gust to 45 mph. * WHERE...Kankakee and Livingston Counties. * WHEN...Until 9 AM CST this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ INZ001-002-261800- /O.CON.KLOT.WW.Y.0021.000000T0000Z-181126T1800Z/ Lake IN-Porter- Including the cities of Gary and Valparaiso 606 AM CST Mon Nov 26 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Snow expected. Total snow accumulations 2 to 3 inches are expected. Winds will gust to 45 mph. * WHERE...Lake IN and Porter Counties. * WHEN...Until noon CST today. * ADDITIONAL DETAILS...Plan on slippery road conditions. Expect reduced visibilities at times. * The strong winds will blow unsecured outdoor objects around and could cause minor tree damage, especially near the Lake Michigan shore. High profile vehicles will experience further difficulties, particularly on west to east roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
What forecasters said that day
The local office's own words before this blizzard warning 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 blizzard warning went out at Nov 25, 5:52 AM CST, 5 hours 45 minutes earlier.
Area forecast discussion, Nov 25, 5:52 AM CST, 5 hours 45 minutes before
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
552 AM CST Sun Nov 25 2018
.SHORT TERM...
320 AM CST
Today through Monday...
Powerhouse early-season winter storm taking aim on the region
later today and tonight. Travel conditions are expected to become
hazardous and potentially life-threatening across parts of
northern Illinois, as a combination of intense heavy wet snowfall
and 45 mph winds produce snow covered roads, blowing and drifting,
and poor visibility. Winter Storm Warnings and advisories remain
largely unchanged in coverage, though have pushed start/end times
back a few hours in some cases based on consistent model trend of
a slower storm system. In addition, new Winter Weather Advisory
headlines are in place for Lake and Porter counties in northwest
Indiana later tonight, and Lakeshore Flood Warning has been
extended into Lake County IL (see separate paragraph at end of
discussion). Total snowfall amounts in the 8-12+ inch range are
expected across north central and portions of northeast IL, with a
amounts dropping off quickly along the I-55 corridor eastward.
Vigorous mid-level short wave was evident across the western
Plains in early morning water vapor imagery. Associated 995 mb
surface low was analyzed near Wichita Kansas as of 08Z/2 AM CST.
00Z guidance in pretty good agreement in tracking this low to near
St. Louis by this evening, then east-northeast to the Champaign
IL/Lafayette IN area by midnight tonight. National radar mosaic
depicts a west to east oriented band of precipitation developing
from southeast Nebraska into southwest Iowa, where low level
cyclonic flow was inducing warm/moist advection and ascent in
response to the short wave. The resulting tightening of the
elevated baroclinic zone (frontogenesis) is progged to extend
eastward into northern IL by mid-morning, producing a region of
banded precipitation along and north of I-88 across northern IL.
Forecast soundings depict an above freezing layer between 900-800
mb, which will likely result in precipitation initially falling as
a mix of rain/snow in this west-east band this morning/midday. As
large scale forcing for ascent increases early this afternoon
with the approach of the short wave, wet-bulb and dynamic cooling
is expected to cool the column enough to change precipitation over
to all snow across north central Illinois. Farther east,
precipitation is expected to begin primarily as rain,
transitioning to rain/snow and then all snow into this evening.
Snowfall is expected to intensify across north central IL late
this afternoon, as moist ascent strengthens in response to
increasing vorticity advection, very strong mid-level
frontogenesis, steep mid-level lapse rates, and strong upper level
divergence associated with coupled left front/right rear jet
streak regions. Various explicit model guidance and high-res
ensemble statistical output indicate the potential for snowfall
rates of 1-2 inches per hour, persisting across a good portion of
northern Illinois through the evening hours. During the same
period, the tightening of the surface pressure gradient north of
the low track will result in northeast winds increasing to near 30
mph, with gusts to 45 mph likely. The combination of heavy
snowfall and very strong gusty winds will undoubtedly produce
rapidly deteriorating travel conditions, which may very well
become life-threatening due to poor visibility in heavy falling
snow and blowing and drifting. In addition, the combination of
very heavy wet snow and strong winds may result falling tree limbs
and power outages. Near white-out conditions will be possible,
and an upgrade to Blizzard Warnings is not out of the question
later today, though in collaboration with surrounding WFO's we
elected to allow day shifts to make that call depending on how the
storm develops. The strong deformation band and most intense
snowfall gradually shifts from west to east across the forecast
area through late this evening, eventually moving east of the area
early Monday morning. This will allow snowfall to taper off and
end across north central IL prior to daybreak, and shortly
thereafter in the east. The exception will be across northwest
Indiana, where lake effect snow showers may persist during the
morning. As indicated in the first paragraph above, total snowfall
is expected to range from 8-12+ inches across much of north
central and far northeast IL, with amounts quickly dropping off
near the I-55 corridor and areas south and east. Winter storm
warnings are in effect generally for areas in the 6+ inch amounts,
with winter weather advisories farther southeast where 2-5 inch
amounts are expected.
Snow will taper off quickly across the east Monday morning, with
a few snow showers lingering through perhaps midday for Lake and
Porter counties in northwest Indiana. Winds will gradually
diminish and turn more west-northwesterly by afternoon. It will be
chilly with highs only in the mid 20s to low 30s, and wind chills
in the teens.
Ratzer
Lakeshore Flooding...
Only change is to add Lake County IL to the lake shore flood
warning. Winds will quickly increase this evening with gale
force winds to 45 kt along with the potential for storm force
gusts to 50kt at the lakeshore. The surface low is also tracking
just a tad slower which will likely maintain northeast winds for a
bit longer before turning more northerly overnight. Waves 12-16
feet along the IL shore still look on track with 14-18 feet along
the Indiana shore. These higher waves will persist for a longer
duration along the Indiana shore. cms
&&
.LONG TERM...
Monday Night through Sunday...
200 AM...Forecast concerns include low temperatures mid week...
a possible light wintry mix with a clipper Thursday and then an
unsettled and uncertain next weekend.
Low temps each morning through Thursday will be a concern with the
expected deep snowpack arriving Sunday night across northern
portions of the cwa. MEX guidance continues to trend colder and
followed that trend but these may still be too warm...especially
over the snowpack. The coldest morning still looks to be Wednesday
morning as high pressure is moving southwest of the area. Wind
chills Tuesday morning and again Wednesday morning likely to be
below zero in the coldest areas and just in the single digits
above zero elsewhere. High temps mid week also only in the 20s.
The models continue to struggle with a clipper system for
Thursday. The gfs has been more consistent with this feature and
now the ecmwf has it back with the latest run. Confidence remains
low but if precip does materialize with this system precip type
may become an issue as thermal profiles could be warm enough for
some rain to mix in but surface temps are likely to remain below
freezing over the snow covered areas. Its a bit early for any
specifics especially given the low confidence but will need to be
watched closely as this time period approaches.
There are now some fairly large changes next weekend with the gfs
showing a low moving across the Ohio Valley with colder air
spreading across the region into Sunday. Meanwhile the ecmwf has
a low moving across the plains and western lakes later next
weekend. This makes for large differences in temperatures and
precip type and no large changes to the forecast for now. cms
&&
.AVIATION...
For the 12Z TAFs...
552 AM...Multiple forecast concerns regarding the winter storm to
affect the region this afternoon through Monday morning.
A band of light rain is developing across west central IL
currently and will slowly lift north across parts of northern IL
this morning. Some of this precipitation may mix with light snow
especially west of ord/mdw. Added a mix of rain/snow to the tempo
this morning and lowered visibilities a bit but trends will need
to be monitored. If this precipitation trended more toward snow
then visibilities will be lower.
The main winter storm precipitation is expected to develop this
afternoon across northwest IL and across the Chicago area
terminals toward evening. Overall...made no significant changes
to the previous forecast. There will be a sharp cutoff with heavy
snow northwest of this line and rain southeast of this line. Rain
is expected to develop over the Chicago terminals late this
afternoon...transitioning to snow at dpa and ord by mid evening
and then at mdw by late evening. This timing will likely needed
further refinement and changes are possible. But there still
appears to be a band of heavy snow across northern IL for several
hours where visibilities of 1/2sm or less will be prevailing. Its
possible that several hours of 1/4sm will develop at rfd/dpa/ord.
The back edge of the snow now looks like it will persist through
sunrise at the Chicago terminals...though the heaviest snow may
end prior to sunrise with some minor improvement to cigs/vis
possible.
Winds will become northeasterly over the next few hours and then
slowly increase through early afternoon. Wind speeds/gusts will
then quickly increase from late afternoon into this evening.
Speeds are likely to be in the 20-30kt range with gusts into the
35-40kt range for several hours. Wind directions will slowly turn
more northerly overnight and then to the north/northwest Monday
morning as speeds/gusts slowly diminish.
Prevailing mvfr cigs are expected today with ifr possible
especially with the band of precipitation that is expected. Cigs
will trend into ifr this evening before the heavy snow begins.
Cigs will trend into mvfr Monday morning. cms
&&
.MARINE...
200 AM...Low pressure will move from St. Louis this afternoon to
near Toledo by Monday morning as it slowly deepens. A tight
pressure gradient will move across southern Lake Michigan tonight.
Winds will quickly increase to northeast gales to 45 kt this
evening and then slowly turn more northerly overnight. The track
of this low has trended a little slower so the gale force winds
are expected to persist a bit longer into Monday morning...
especially for northwest Indiana. In addition to the high end
gales...storm force gusts are possible. Will maintain storm force
gust mention for now but confidence remains low for how long storm
force gusts may persist. Northwest winds will slowly diminish
Monday into Monday night with small craft conditions likely
persisting into Monday night. cms
&&
.LOT WATCHES/WARNINGS/ADVISORIES...
IL...Winter Storm Warning...ILZ006-ILZ013-ILZ014...noon Sunday to 9
AM Monday.
Lakeshore Flood Warning...ILZ006...9 PM Sunday to 6 AM Monday.
Lakeshore Flood Warning...ILZ014...9 PM Sunday to noon Monday.
Winter Storm Warning...ILZ003-ILZ004-ILZ005-ILZ008-ILZ010-ILZ011-
ILZ012 until 6 AM Monday.
Winter Storm Warning...ILZ019...noon Sunday to 6 AM Monday.
Winter Storm Warning...ILZ020-ILZ021-ILZ022...3 PM Sunday to 9
AM Monday.
Winter Weather Advisory...ILZ023-ILZ032...9 PM Sunday to 9 AM
Monday.
IN...Lakeshore Flood Warning...INZ001-INZ002...9 PM Sunday to noon
Monday.
Winter Weather Advisory...INZ001-INZ002...11 PM Sunday to noon
Monday.
LM...Gale Warning...LMZ740-LMZ741-LMZ742...3 PM Sunday to 9 AM Monday.
Small Craft Advisory...LMZ740-LMZ741-LMZ742...noon Sunday to 3
PM Sunday.
Gale Warning...LMZ743-LMZ744-LMZ745...6 PM Sunday to 9 AM Monday.
Small Craft Advisory...LMZ743-LMZ744-LMZ745...noon Sunday to 6
PM Sunday.
&&
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FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
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WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGOHazardous weather outlook, Nov 25, 4:07 AM CST, 7 hours 30 minutes before
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 407 AM CST Sun Nov 25 2018 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 261015- 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- 407 AM CST Sun Nov 25 2018 /507 AM EST Sun Nov 25 2018/ This Hazardous Weather Outlook is for portions of North Central Illinois...Northeast Illinois and Northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Elevated Non thunderstorm wind Risk. Extreme Snow Risk. Extreme Lakeshore Flood Risk DISCUSSION... A powerful winter storm will impact the region today and tonight. Heavy, wet snow will fall across much of northern Illinois late today and tonight, with accumulations of a foot or more possible from the Quad Cities into the west and northwest suburbs of Chicago. Snowfall amounts will decrease to the southeast, with amounts of 1 to 3 inches expected southeast of the Interstate 55 corridor in eastern Illinois and northwest Indiana. This storm will be accompanied by strong winds gusting to 45 mph late today and tonight. These strong winds will produce blowing and drifting snow and poor visibility, and combined with heavy wet snow may result in downed tree limbs and power outages. Travel will become hazardous and potentially life-threatening across portions of northern Illinois late this afternoon and this evening. Strong onshore winds will also produce large waves and lakeshore flooding along the Illinois and Indiana lake Michigan shores. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Limited Excessive Cold Risk. Elevated Non Thunderstorm Wind Risk. Limited Snow Risk. Extreme Lakeshore Flood Risk Tuesday and Wednesday... Limited Excessive Cold Risk. SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. LMZ740>745-261015- 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- 407 AM CST Sun Nov 25 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...Today and Tonight. Weather hazards expected... Storm force winds and extremely hazardous waves. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Storm force winds and extremely hazardous waves are likely. Ratzer 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 |
|---|---|---|---|---|
| Nov 24, 8:05 PM CST | Lakeshore Flood Warning | LOT | Lake | 40 hr |
Nearby
Blizzard Warnings in Illinois, 2018Every blizzard warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.