Chicago Storm

Initial Day 3 outlook was surprisingly underwhelming. Gun-shy after the one they put out for April 28? But this setup looks a lot more concerning simply from a trough geometry standpoint.

Not fine according to 18z GFS.
Thursday May 22 (some spots stuck in the mid to upper 40s):

The day before Memorial Day (stuck in the low to mid 50s):

Backdoor cold front (and daily lake cooling) gonna suck.

On 5/2/2025 at 11:24 AM, Chicago Storm said:

i troll spartman, and then guidance flips.

i see how it is...

canceled.

On 4/30/2025 at 12:20 PM, Chicago Storm said:

another nice month on tap.

re-instated.

On 4/30/2025 at 12:20 PM, Chicago Storm said:

another nice month on tap.

i troll spartman, and then guidance flips.

i see how it is...

Another nice month? April was a washout. 
Even with a garbage blocking pattern taking place this weekend into next week....

another nice month on tap.

Topped out at 84° at ORD yesterday, which is the first official 80°+ day of the year for Chicago.

It was also just shy of a record high for the date as well.

Classic solid EML/deep summer setup tonight.

A heat burst is occurring in S IA currently, with anvil showers across N MO/S IA.

Oskaloosa, IA went from 76/64 to 81/43, with winds gusting to 69MPH.

looks like a non-event around here.

a marginal is questionable enough as it is, let alone an enhanced into portions of the CWA.

On 4/23/2025 at 5:49 AM, Baum said:

striking how old the years of the previous winters were with so little snow.

On 4/23/2025 at 5:56 AM, A-L-E-K said:

lakefront wx site?

Here's the list with OBS locations added.

I should note that 9 out of 10 of RFD's least snowy seasons also occurred between 1900 and 1940. So, it was just a period filled with a lot of clunkers. RFD's least snowiest season on record was 2.8" during the 1906/07 season.

Least Snowiest Snowfall Seasons
1. 9.8" - 1920/21 (Downtown/Loop)
2. 11.5" - 1921/22 (Downtown/Loop)
3. 12.0" - 1936/37 (South-side/U of Chicago)
4. 14.3" - 1948/49 (MDW)
5. 17.6" - 2024/25 (ORD)
6. 18.0" - 1898/99 (Downtown/Loop)
7. 18.2" - 1901/02 (Downtown/Loop)
8. 18.9" - 1924/25 (Downtown/Loop)
9. 19.0" - 1914/15 (Downtown/Loop)
9. 19.0" - 1912/13 (Downtown/Loop)

The 2024/25 snowfall season will finish as the 5th least snowiest on record for Chicago. Also of note, is that with this being the case, the season of 2011/12 has now dropped out of the top 10.

Least Snowiest Snowfall Seasons
1. 9.8" - 1920/21
2. 11.5" - 1921/22
3. 12.0" - 1936/37
4. 14.3" - 1948/49
5. 17.6" - 2024/25
6. 18.0" - 1898/99
7. 18.2" - 1901/02
8. 18.9" - 1924/25
9. 19.0" - 1914/15
9. 19.0" - 1912/13

Suicide weather yesterday, it returns tomorrow. TWC/Wunderground now says it might as well include some rain if they have maintained overcast skies for tomorrow over the past several days. So much for the 1st dry weekend of Spring 2025. 

Normally we would have at least one dry weekend or two every Spring, but I feel that this is just not going to be our year. Even wet springs like 2011 had some dry weekends.
The last time it rained EVERY SINGLE WEEKEND the entire Spring was in 2019. 

madwx a solid new addition for mid/longer range views.

On 4/8/2025 at 7:20 AM, cyclone77 said:

Can't believe it's already been a year since the total eclipse.  

time is flying by.

LOT confirmed 2 tornadoes in their CWA from this event.

2 tornadoes in IL.

The 2025 LOT CWA tornado count is now 16.

93MPH speed on this little t’storm in Central Illinois.

1 minute ago, CheeselandSkies said:

Satellite showing clearing pushing in there as well as NW IL. If I'm still going to chase today it'll be because something promising fires there.

There already was a t'storm with brief rotation outside of the general thunder in N-C IA.

Zero clue on why the SPC removed the entirety of the risk across E IA and NE MO.

12 minutes ago, SchaumburgStormer said:

My p&c has my high at 68. I've played the I-80 warm front game and expect to see it again

it's going to blast through.

13 hours ago, Chicago Storm said:

tomorrow is intriguing...if evolution can play ball.

will it? the morning trend is your friend.

evening trend not your friend.

LOT confirmed 1 tornado in their CWA from this event.

1 tornado in NW IN.

The 2025 LOT CWA tornado count is now 14.

March 2025 finished as the 10th warmest March on record for Chicago.

Warmest March's
1. 53.5° - 2012
2. 48.6° - 1945
2. 48.6° - 1910
4. 47.2° - 1946
5. 45.8° - 1921
6. 45.3° - 1878
7. 45.1° - 1973
7. 45.1° - 1938
9. 44.7° - 1977
10. 44.4° - 2025

March 2025 finished as the 10th warmest March on record for Chicago.

Warmest March's
1. 53.5° - 2012
2. 48.6° - 1945
2. 48.6° - 1910
4. 47.2° - 1946
5. 45.8° - 1921
6. 45.3° - 1878
7. 45.1° - 1973
7. 45.1° - 1938
9. 44.7° - 1977
10. 44.4° - 2025

9 minutes ago, MidwestChaser said:

18z HRRR really maxing out Sigtor in NE Illinois.

 

solid, but would like a bit more turning in the lower 3km.