July 2025 General Discussion

[frostfern]

3 minutes ago, WestMichigan said:

Let's hope not.

Showers over the lake are struggling to get going yet again.  Chicago + south lake line misses south and blocks the moisture.

[WestMichigan]

4 minutes ago, frostfern said:

Showers over the lake are struggling to get going yet again.  Chicago + south lake line misses south and blocks the moisture.

One cell looks to be heading towards somewhere between South Haven and Saugatuck heading ENE.  Maybe it can get going enough to bring some rain to the area.

[A-L-E-K]

Mini train with real crackers, nice

[pen_artist]

Solid wind bag here in Downers Grove

[frostfern]

3 minutes ago, WestMichigan said:

One cell looks to be heading towards somewhere between South Haven and Saugatuck heading ENE.  Maybe it can get going enough to bring some rain to the area.

Tired of anvil sprinkles.  I think afternoon is poor timing.  After 8pm storms are not so suppressed by the lake.  Afternoon meso-high is what suppresses everything.

[frostfern]

Definitely some towers around.  Storms may erupt overhead any moment, but too late for the lakeshore north of Saugatuck.

[frostfern]

Looks like a micro-cell trying to push up just north of Holland.  Hope the next scan is over 50 dbz.  So far showers are struggling with some kind of mid-level inversion or something.

[frostfern]

Well, a few specks of 40 dbz aloft.  Come on man!

[WestMichigan]

Th

8 minutes ago, frostfern said:

Well, a few specks of 40 dbz aloft.  Come on man!

You are looking pretty good.  Not sure I will get much if anything unless something forms pretty soon.

[frostfern]

Just now, WestMichigan said:

Th

You are looking pretty good.  Not sure I will get much if anything unless something forms pretty soon.

Cell tops are only 20k.  These are small warm showers so far.  The cells by Lansing broke the inversion and are around 40k.

[michsnowfreak]

Havent set foot outside. DTW is 94 dewpoint 73. An expected grossly hot/humid day, but considering its been talked about for nearly 2 weeks and its going to be 1 whopping day, way more bark than bite (here, not necessarily elsewhere).

On this day in 1934, temps over 100° baked the southern Great Lakes, including an all time record 105° at Detroit. Today's high will not even sniff that.

[TheNiño]

Had some surprisingly cool looking mammatus pass over Mundelein about 30min ago well north of the line. Wouid have gotten a picture but I was soaking in the pool.

[frostfern]

I cannot remember a lake shadow as bad as this summer in my life.  Storms used to happen at night unaffected by the lake.  It used to rain at night.  Now all convection is diurnal and completely dictated by local geography.

[TheClimateChanger]

36 minutes ago, michsnowfreak said:

Havent set foot outside. DTW is 94 dewpoint 73. An expected grossly hot/humid day, but considering its been talked about for nearly 2 weeks and its going to be 1 whopping day, way more bark than bite (here, not necessarily elsewhere).

On this day in 1934, temps over 100° baked the southern Great Lakes, including an all time record 105° at Detroit. Today's high will not even sniff that.

Extreme and dangerous heat across southeast Michigan, with mid and upper 90s common across the area. I'd be willing to bet the heat indices, which are a better measure of heat stress, are every bit as high today as in the 1934 heat wave.

[michsnowfreak]

41 minutes ago, TheClimateChanger said:

Extreme and dangerous heat across southeast Michigan, with mid and upper 90s common across the area. I'd be willing to bet the heat indices, which are a better measure of heat stress, are every bit as high today as in the 1934 heat wave.

I never said it wasnt. In fact. I said its gross and that I havent set foot outside. But for one day this heat sure got overkill media coverage compared to past hot spells. 

The hottest time of year here is July 13-20 though its still firmly the dog days. Hot and humid conditions are common, and everyone knows how to deal with them. 

In the 1930s people didnt have the luxury of AC.

[TheClimateChanger]

2 minutes ago, michsnowfreak said:

I never said it wasnt. In fact. I said its gross and that I havent set foot outside. But for one day this heat sure got overkill media coverage compared to past hot spells. 

The hottest time of year here is July 13-20 though its still firmly the dog days. Hot and humid conditions are common, and everyone knows how to deal with them. 

In the 1930s people didnt have the luxury of AC.

Extremely pleasant humidity levels corresponding to comfortable dewpoints in the 50s - a rarity in modern Detroit in mid to late July. A swamp cooler would probably work better than central air in such conditions. Under those atmospheric conditions, the heat index would be lower than the actual air temperature.

[cyclone77]

10 hours ago, cyclone77 said:

The Iowa stuff is crapping the bed.  The new stuff should fire off to the east/south later today.  Looking like a skip-over for this area with this one.  

Nailed it.  Received nothing.

[Chicago Storm]

2 minutes ago, cyclone77 said:

Nailed it.  Received nothing.

what are you paying for?

has to be something with a big up-front cost.

[cyclone77]

Just now, Chicago Storm said:

what are you paying for?

has to be something with a big up-front cost.

lol, maybe the 2020 derecho as well.  

We really don't need the rain anyway (over 4" for July), so it's all good.

[A-L-E-K]

 

 

[michsnowfreak]

40 minutes ago, TheClimateChanger said:

Extremely pleasant humidity levels corresponding to comfortable dewpoints in the 50s - a rarity in modern Detroit in mid to late July. A swamp cooler would probably work better than central air in such conditions. Under those atmospheric conditions, the heat index would be lower than the actual air temperature.

That particular day the humidity was low. But theres nothing pleasant about 105. There were multiple deaths and a huge fire broke out in Detroit. Its not one of the more interesting heat events of the era imo, other than the fact that its THE one time Detroit surpassed 104°. 104 was recorded in 1918, earlier in 1934, twice in 1936, and 1988. But this is the only 105.

[Torchageddon]

Got a solid squall line quickly move through, 19th storm of 2025. 9mm in 35 mins, 230 strikes all CC. Finally saw a shelf cloud and fantastic hues of blue. What might be the most impressive part was how dark it got at 5:30, 100 lux!!

34C/93F for a high, windy again. I didn't find it all that humid but there was a humidex of 43. I enjoyed it and made an effort to be outside to take it all in.

[Chicago Storm]

Peaked at 92° at ORD and 96° at MDW today.

...2025 90°+ Day Tally...
20 - ORD
20 - DPA
19 - MDW
19 - PWK
18 - ARR
17 - LOT
15 - RFD
11 - UGN

[TheClimateChanger]

Very impressive heat in southeast Lower Michigan today. Selfridge Air National Guard Base reached 98, its highest reading since 2012. 97 at Troy, Pontiac, and Ypsilanti (Willow Run). Flint and Coleman Young Airport topped out at 96. Detroit Metropolitan Wayne International Airport and Ann Arbor Municipal Airport both reached 95. Monroe reached 96, and even the traditional cool spot at Grosse Ile topped out at 95. 
 

Wonder what @michsnowfreak observed today? Looking at some backyard thermometers around Wyandotte, it looks like 97-98 was pretty common. Definitely a scorcher!

[cyclone77]

Getting some consolation showers.  Picked up 0.13".  

[michsnowfreak]

1 hour ago, TheClimateChanger said:

Very impressive heat in southeast Lower Michigan today. Selfridge Air National Guard Base reached 98, its highest reading since 2012. 97 at Troy, Pontiac, and Ypsilanti (Willow Run). Flint and Coleman Young Airport topped out at 96. Detroit Metropolitan Wayne International Airport and Ann Arbor Municipal Airport both reached 95. Monroe reached 96, and even the traditional cool spot at Grosse Ile topped out at 95. 
 

Wonder what @michsnowfreak observed today? Looking at some backyard thermometers around Wyandotte, it looks like 97-98 was pretty common. Definitely a scorcher!

I do not have a backyard thermometer. I usually run similar to DTW. It was probably 95 or so. The hottest my phone said was 94. No way was it 98, you know as usual that many amateur thermometers run high, just as dewpoints on non calibrated awos often run high in humidity.

The high at DTW marks the 316th time since records began in 1874 that Detroit officially hit 95+. A well advertised hot and humid day, not sure id go with "very impressive". Only missed the record by 10°. To be honest, the way they talked about dewpoints i expected worse. Peak HI was 103.

95 and humid is "very impressive" but 105 with low humidity doesn't require AC? Hmm

[thomp2mp]

with this evening's frontal boundary convection almost done working through, I picked up 1.02" of rain since 7:30pm, skyrocketing my July total precip to 2.70".

all in all a very unpleasant day to be outside. hit 97.7° this afternoon, the highest temp of the month.

now i'll have to mow the lawn, dammit.

[TheClimateChanger]

Some much needed rainfall spreading into parts of northeastern Ohio. A number of locations have seen very little rainfall this month, with 0.18" at Burke Lakefront Airport, 0.21" at Akron Fulton International Airport, 0.50" at New Philadelphia Clever Field. Even the cooperative observer in Chardon has reported only 0.52" for the month, typically one of the wettest spots in northeast Ohio. Cleveland Hopkins International Airport and nearby Elyria - Lorain County Airport have picked up 0.79", while Ashtabula County Airport has seen 0.81".

[michsnowfreak]

43 minutes ago, thomp2mp said:

with this evening's frontal boundary convection almost done working through, I picked up 1.02" of rain since 7:30pm, skyrocketing my July total precip to 2.70".

all in all a very unpleasant day to be outside. hit 97.7° this afternoon, the highest temp of the month.

now i'll have to mow the lawn, dammit.

Sky to the north got dark. But we only got a trace here. We could use some measurable rain.

[WestMichigan]

Managed to get enough rain to wet the pavement, but not enough to form puddles.  Still waiting for something, anything in the way of meaningful rain.