Tuesday March 10, 2026 8:15PM CDT @noaa.gov Weather Radio Lockport KZZ81 ➡️ broadcastify.com/webPlayer/46... ⬅️ severe thunderstorms in north central #Illinois; west of Chicago; #tornado warning NW of Peoria. #SevereWX #TwitterWX #WXTwitter #WX #J3WX #ILwx #Peoria #Chicago #chicagowx
Tuesday March 10, 2026 8:10PM CDT National Weather Service station @nwschicago.bsky.social ➡️ weather.gov/lot/ ⬅️ severe thunderstorms in north central #Illinois; west of Chicago; #tornado warning NW of Peoria. #SevereWX #TwitterWX #WXTwitter #WX #J3WX #ILwx #Peoria #Chicago #chicagowx
As has been discussed in previous forecast discussions, the magnitude of lake instability available tonight into Monday is incredible and more typical of environments over Lake Erie. Forecast BUFKIT profiles over the southwestern shore of Lake Michigan tonight depict 850/700mb temperature differentials of 25/35C, lake-induced CAPE in excess of 1,500 J/kg, and effective equilibrium levels nearing 25,000 feet. As a result, the expectation is for the lake effect snow bands to be unusually intense with peak snow rates of 3 to locally 5 inches per hour, frequent lightning and thunder, and pockets of hail. Even with the expectation for the snow bands to be relatively transitory, the unusually intense snow rates will render snow clearing measures ineffective leading to dangerous travel conditions. If any band were to park over the same area for several hours (which may very well happen in Cook county at around daybreak Monday), travel may become impossible with the potential for stranded cars during the rush hour commute. Needless to say, this may become a very dangerous and life threatening situation beneath the most intense and stationary lake effect snow bands.Travel is not advised beneath the lake effect snow bands.
An update from the NWS on the potential snow event. Read it.
One key: “…As a result, the expectation is for the lake effect snow bands to be unusually intense with peak snow rates of 3 to locally 5 inches per hour, frequent lightning and thunder, and pockets of hail.”
#ILwx #Chicago #ChicagoWX
Intense Bands of Lake Effect Snow Possible Sunday Night into Monday What We Know • Intense bands of lake effect snow are possible Sunday night into Monday. POSSIBLE SNOW RATES >2"/HR, LOW VISIBILITY, HAZARDOUS TRAVEL What's Still Uncertain • Where the heaviest band of snow will track. Cook, eastern Will, Lake (IN) and Porter counties appear to be the primary threat areas. What To Do Follow trusted sources for weather information.
Tonight into Sunday • Rain will overspread the area late this afternoon and evening and transition to snow late tonight • There is a low (20-30%) chance for 1-2" of slushy accumulation tonight away from Lake Michigan • A band of lake effect snow extend inland at the start of Sunday Sunday Night into Monday • Intense bands of lake effect snow are anticipated Sunday night into Monday and may lead to locally significant travel impacts • Uncertainty remains on exactly where the heaviest snow focuses. Far NE IL and across NW IN are the primary threat areas • The heaviest snow bands may produce snow rates >2-3"/hr and wind gusts >35 mph making travel very hazardous
Heads up for winter weather tomorrow (Sunday) night into Monday. Lake effect snow bands are very hard to pinpoint, but the ingredients for a big snow event seem to exist. As usual with winter weather, the question is whetehr or not all those ingredients mix together the right way.
#ILwx #ChicagoWX
Monday August 18 2025 7:06PM CDT @noaa.gov @nws.noaa.gov National Weather Service station Quad Cities @dvn.nws-bot.us ➡️ weather.gov/dvn/ ⬅️ shows #thunderstorms; some #severe & flash flooding heading to Chicago. #SevereWX #WXTwitter #WX #ILwx #Chicago #Chicagowx #J3WX #Weather
Monday August 18 2025 4:43PM CDT @noaa.gov @nws.noaa.gov National Weather Service station Chicago @chi.nws-bot.us ➡️ weather.gov/lot/ ⬅️ shows #severe #thunderstorms & #tornado warning west / northwest of Chicago #SevereWX #WXTwitter #WX #ILwx #Chicago #Chicagowx #J3WX #Weather
Accuweather is the Internet Explorer of weather forecasting.
#AccuNever #chicagowx #illinoiswx
Wednesday July 16, 2025 4:25PM CDT @noaa.gov @nws.noaa.gov National Weather Service station Chicago @chi.nws-bot.us ➡️ weather.gov/lot/ ⬅️ shows #severe #thunderstorm warnings in NE #Illinois and NW #Indiana. #SevereWX #WXTwitter #WX #ILwx #INwx #Chicago #Chicagowx #Gary #Garywx
A drone view of the Chicago skyline from Pilsen. The atmosphere is thick with wildfire smoke blotting out the blue sky and creating an overall hazy appearance on Jun 5th 2025
Do not adjust your screens...Chicago is this hazy and desaturated thanks to persistent Canadian wildfire smoke. I popped my drone up at 9:30 to scope out the atmosphere and it's murky
#Chicago #ILwx #ChicagoWX
@gingerzee.bsky.social
This is a weather forecast map for reflectivity showing a curved line of thunderstorms stretching from northern Wisconsin into south-central Illinois. The map was generated at 1:00pm for storms that were predicted to impact the area at 8:00pm.
This is a radar return for reflectivity showing a curved line of thunderstorms stretching from northern Wisconsin into south-central Illinois. These were actual conditions at 7:57pm
Forecast vs. reality. The HRRR model on the left was generated at 1:00pm yesterday and showed *predicted* storm activity at 8:00pm. The radar return on the right shows actual conditions at 7:57pm. NOAA and the NWS do incredible work #ILwx #ChicagoWX #SKYwx
A lighting flash density map showing a curved line of thunderstorms producing prolific lightning from Northern Wisconsin down into central Illinois. This is a model run showing the conditions at 8:00pm tonight
If the forecast verifies, we could be in for a an hour or two full of lightning. Here's the HRRR model showing lighting flash density at 8:00pm tonight. #ILwx #ChicagoWX #WXsky
The chart shows Chicago in a 3/5 threat level for severe weather. The infographic reads: Today's Severe Weather Threat: May 15, 2025 as of 5:57 AM What We Know • Scattered severe supercells are expected this afternoon and evening, especially along/east of 1-39. • Primary time window: 3 to 10 PM CDT Potential Severe Weather Threats: Destructive hail, destructive wind, tornado What's Still Uncertain: • Coverage of storms & where they will develop. • While confidence has increased in storms developing today, some locations may not see any storms or severe weather. What To Do: • Remain weather aware through the evening. • Review your safety plan. Have multiple ways to get warnings!
An infographic on this afternoon/evening's storm potential from the NWS Chicago Office.
Keep I mind, the "ingredients" for strong storms will be present in the atmosphere, the question is (usually) whether they'll "mix" together to create storms.
#ILwx #ChicagoWX
This photo depicts the skyline of Chicago from the Skydeck observatory. The city is blanketed in a low layer of fog and many skyscrapers are poking through the veil of clouds. The city lights make the cloud seemingly glow
This is a reminder that if low fog rolls into the city you should consider visiting one of Chicago’s observatories for an incredible experience
I couldn’t make it up to Skydeck tonight, but this was from a surreal blue hour back in 2013. #ILwx #ChicagoWX
A weather heads up for Chicago tomorrow #ILwx #ChicagoWX
Satellite view of Illinois surrounded by clouds, but covers in haze - likely dust
A hazy view of the Chicago skyline from Londonhouse Chicago on St. Patrick’s Day
Going out on a limb and guessing these hazy skies are from the dust storm in Texas & Oklahoma yesterday. #ILwx #ChicagoWX
Radar returns showing storms aren’t as intense as the ones in Central IL and further downstate and into Arkansas and Mississippi where tornadoes are spinning up. BUT the severe warning shows storms headed towards Chicago may be gusting to 60-70 mph
Lot going on right now. Tornado warning just popped-up near DeKalb. Storms aren’t as intense as further downstate and into Arkansas and Mississippi where tornadoes are spinning up. BUT the severe warning shows storms headed towards Chicago may be gusting to 60-70 mph. Stay alert #ILwx #ChicagoWX
Main line of storms is still 180 miles out and moving north-northeast at about 55-60mph.
Chicago is still under a severe thunderstorm watch (yellow box). Red boxes to south are tornado watches. #ILwx #ChicagoWX
In this real-time satellite view of earth (thanks @cira-csu.bsky.social ) you can see dust flowing across Texas and Oklahoma as strong southwest winds scream across the southern plains...on their way to us #ILwx #ChicagoWX
A weather radar forecast map showing 1 km AGL reflectivity (dBZ) for the central United States, valid for March 15, 2025, at 06z. The image, generated by the HRRR model, displays a curved line of intense precipitation extending from Wisconsin through Illinois and into Missouri, with embedded areas of heavy rainfall and possible thunderstorms. The colors range from blue (light precipitation) to yellow, orange, and red (heavier precipitation), indicating a strong storm system moving through the region.
A weather radar forecast map showing 1 km AGL reflectivity (dBZ) for the central United States, valid for March 15, 2025, at 06z. The image, generated by the NAM 3km CONUS model, displays a curved line of intense precipitation extending from Wisconsin through Illinois and into Missouri, with embedded areas of heavy rainfall and possible thunderstorms. The colors range from blue (light precipitation) to yellow, orange, and red (heavier precipitation), indicating a strong storm system moving through the region.
Here's what the HRRR and NAM model runs looks like for later - 1:00am Saturday morning to be precise. These are two of many forecast models that attempt to predict the future. Other models are mostly in agreement of strong rains between 12pm-2am #ILwx #ChicagoWX
Severe Weather Threat Tonight 8:30 AM Update, March 14, 2025 What To Expect: Strong to severe thunderstorms, moving quickly from southwest to northeast Storms Will be Capable of Producing: - Destructive Winds capable of structural damage and downing trees. - Tornadoes Timing: Peaking between 9 PM and 1 AM CDT, lasting around 1 hour at any given location. What To Do: ~ Have multiple ways to get weather warnings including a way to wake you up! ~ Secure outdoor objects
Be weather aware tonight! Yesterday, #Chicago was in the Level 2 (yellow) threat area. This morning, we've been upgraded to Level 3 (orange). This storm will move though quickly late tonight, but will have the potential for very strong or damaging wind gusts. #ILwx #ChicagoWX
Very strong winds are expected Friday afternoon through Saturday afternoon - Friday (between 2PM and midnight) • Strong south to southeast winds • Gusts of 40 to possibly as high as 50 mph. • Unsecured items blowing around, Hazardous travel on east/west roads, power outages possible - Saturday (between 4AM and 2PM) • Potentially Damaging Winds • Gusts 45+ mph likely; gusts over 55 mph possible. • Tree damage, hazardous travel conditions, power outages possible - What To Do Secure lightweight outdoor furniture and decorations. Take care when driving in open and exposed areas.
Thunderstorm Threat Friday Night: Chance of severe thunderstorms with damaging winds Friday night (4/14) What We Know • A line of severe thunderstorms is expected to develop Friday afternoon over Missouri and lowa • Most likely timing for T-storms locally is between 8PM and 3AM Friday night/Saturday morning What's Still Uncertain • How far east across northern Illinois & northwest Indiana the line of storms will get before weakening or dissipating Friday night • How widespread and/or significant any severe weather threat will be What To Do • Follow trusted sources for weather information. • Be prepared for possible severe weather Friday night.
A heads up on this weekend's weather. Strong winds are expected Friday night into Saturday. Severe storms are a threat, too, but there's still uncertainty to how much they'll impact Northern Illinois.
✶ These graphics brought to you by your local NWS Chicago forecast office ✶
#ILwx #ChicagoWX
Given the potential for strong storms later this week, now’s a good time to familiarize yourself with my lightning photography tutorial ⚡️
#ILwx #ChicagoWX
www.nickulivieriphotography.com/blog/lightni...
Still a few days out, but Illinois - and maybe Chicago - could see its first round of strong spring thunderstorms Friday night into Saturday morning #ILwx #ChicagoWX
Might have some weather coming Friday evening. #chicagowx
Here’s a very quick timelapse of the turbulent asperitas clouds passing over Chicago
#ILwx #ChicagoWX
Asperitas clouds, characterized by their grey smooth, but undulating undersides in the sky above the Chicago skyline.
An undulating bank of asperitas clouds just rolled over the skyline. Running a couple quick timelapse, but the formation was short lived. #ILwx #ChicagoWX
