July 2024 Observations and Discussion

[Tom]

Looks like ORD set a record rainfall last night as those evening training storms erupted right over N IL...1.60" of RN fell through midnight yesterday but it appears that a bit more fell after that.  Another line is incoming as we speak.

 

[Andie]

We’re hot in Tx/Ok. until Thurs.  99-100.

A front will bring us some rain until Thursday and drop into low 90’s for several days.  

[chescowxman]

Most spots except the higher elevations hit 90 degrees yesterday more of the same today and then even hotter Monday and Tuesday with mid to upper 90's especially in lower spots. Cold front slices thru by Wednesday night with temps close to normal but most importantly lower humidity by late week.

Chester County records for today: High 102 degrees in Phoenixville (1954) / Low 50 degrees at Devault (1960)/ Rain 4.00" at West Grove (1975)

[westMJim]

4 hours ago, Tom said:

Looks like ORD set a record rainfall last night as those evening training storms erupted right over N IL...1.60" of RN fell through midnight yesterday but it appears that a bit more fell after that.  Another line is incoming as we speak.

 

while here in the Michigan side of the lake both officially at GRR and here in my yard there was only 0.04" of total rainfall.

[CentralNebWeather]

Current dew points across the state. Disgusting. I’m at 75 dew  

[Minny_Weather]

Hit a dew point of 80 yesterday before the storms hit. Legitimately don't know the last time I've felt a DP that high, it has to have been back when I lived on the Gulf Coast. 

 

I've been super fortunate with a cool, dry summer with only a handful of "hot" days. Of course with the crops finally up, the humidity side of that will change pretty fast. 

[Hoosier]

Dewpoint hit 80 earlier... not much wind either so it was quite uncomfortable.  Was out mowing the grass and got absolutely drenched with sweat.

[Clinton]

Greetings from Navarre, Florida where the weather has been perfect for being at the beach.  Looks like eastern Iowa and northern Illinois are in line for some big storms tomorrow. 

 

Reed Timmer, PhD

 

@ReedTimmerUSA

A MAJOR WIND BAG and even derecho looks possible from central Iowa through northern Illinois, including into Chicago by Monday late evening, with a swath of 75+ mph winds and QLCS tornadoes likely. The initial mode could be supercells in central Iowa, but will quickly congeal into a fast-moving bow echo by the eastern Iowa through Davenport area Monday afternoon. I am considering a live stream for this textbook ridge rider summer

[westMJim]

The official H/L yesterday at Grand Rapids was 85/69 there was 0.04” of rainfall before midnight. The highest wind gust was 32MPH out of the SW. The sun was out 56% of the possible time. For today the average H/L is 83/63 the record high of 95 was set in 1995,2006 and 2013 the coldest high of just 58 was set in 1987. The record low of 47 was set in 1987 with that cold high of 58 that made for a very cool July day. The record rainfall of 2.17” fell in 1995.

There was a rather nice thunderstorm last night and it came with a lot of rain. Here in MBY I recorded 1.72” of rainfall. The overnight low here was 67 and the current reading is 70 with cloudy skies.

 

[Tom]

Happy Monday folks!  What a day of weather back in Chitown and over here as we had a Dust Storm Warning from strong cells that came up from the Tucson area.  Not only did we have storms from the south, but also from the north that both created a perfect scenario to blow up storms from combating outflow boundaries.  You can see it happen from this radar loop... https://weather.cod.edu/satrad/nexrad/?parms=IWA-N0B-1-200-100-usa-rad

Our N IL folks and @Hoosier @Jaycee_CHI appear they were in the perfect spot to get maximum winds from a bowing line of storms!     https://mesonet.agron.iastate.edu/current/mcview.phtml?prod=lotrad&java=script&mode=archive&frames=50&interval=10&year=2024&month=7&day=14&hour=18&minute=0

 

 

[Tom]

@Clinton, your not far from Destin, FL where my buddy wants to head down there in the Winter.  I've seen how beautiful the beaches are along the shores of that area....and the clarity of the water...is it busy down there?  My sister is in Naples, FL and its not busy at all...kinda slow actually.

[Hoosier]

2 hours ago, Tom said:

Happy Monday folks!  What a day of weather back in Chitown and over here as we had a Dust Storm Warning from strong cells that came up from the Tucson area.  Not only did we have storms from the south, but also from the north that both created a perfect scenario to blow up storms from combating outflow boundaries.  You can see it happen from this radar loop... https://weather.cod.edu/satrad/nexrad/?parms=IWA-N0B-1-200-100-usa-rad

Our N IL folks and @Hoosier @Jaycee_CHI appear they were in the perfect spot to get maximum winds from a bowing line of storms!     https://mesonet.agron.iastate.edu/current/mcview.phtml?prod=lotrad&java=script&mode=archive&frames=50&interval=10&year=2024&month=7&day=14&hour=18&minute=0

 

 

Actually was kind of tame here, despite the nice presentation on radar.  Got another good drink though.  Another shot tonight.

[Clinton]

3 hours ago, Tom said:

@Clinton, your not far from Destin, FL where my buddy wants to head down there in the Winter.  I've seen how beautiful the beaches are along the shores of that area....and the clarity of the water...is it busy down there?  My sister is in Naples, FL and its not busy at all...kinda slow actually.

The beaches are beautiful with white sand and clear water.  The weekend was crazy busy with the Blue Angels performing at an air show.  Estimated crowd was 100,000+

[Tom]

6 minutes ago, Clinton said:

The beaches are beautiful with white sand and clear water.  The weekend was crazy busy with the Blue Angels performing at an air show.  Estimated crowd was 100,000+

I absolutely LOVE air shows!!  The Blue Angles are one of the best shows out there...looks like your having a good time.

[Tom]

My sister took this photo of a beautiful storm down the beach in Naples, FL the other day…that rain shaft looks ominous!

 

[bud2380]

Still no mesoscale discussions from the SPC.  Not sure what to expect this afternoon/evening at this point.  Still in an enhanced risk of severe weather, models differ significantly on the details (as usual).  

 

[bud2380]

Finally a MD issued.

https://www.spc.noaa.gov/products/md/md1630.html

[Hawkeye]

The dew point has reached 80º in Cedar Rapids.

I hope we can get a inch of rain later today, but I don't want 80 mph wind.

[Hoosier]

LOT has confirmed 3 tornadoes from last night, all EF-0.  2 of them were on the south side of Chicago.  I had noticed a brief tornado warning for the city last night.

[Hoosier]

SPC just upgraded to moderate risk.

[bud2380]

Just got a notification from the weather channel that we have a severe thunderstorm watch issued.  The SPC doesn't even have that posted yet.  You'd think since they issue them, their own website would be the first to show it.  But no.  

[bud2380]

Here it is.

 

[OttumwaSnomow]

My high today so far 94.5

 

Highest dewpoint  of the year a hour ago 81.9

 

Need rain AGAIN!

Just 1.61 in July. Only 3.6 since  may 26th!! Eeking by, but yet another dry growing  season!!! 

Yesterday  and today I drove from Galesburg  Illinois  to  Desmoines, its very demoralizing  to see that my spot here once again is the driest. 

[Andie]

100* through Wednesday, then Low 90’s for a week!!

Chances for rain increase. 

[Hoosier]

My dew has also topped 80 again.  This seemed to be a rare occurrence in years past.  Now it seems like it happens at least a couple times per summer.

 

[westMJim]

In looking at current radar trends it looks like most if not all of the severe weather will be to the south of the 
Grand Rapids metro area. At the current time it is sunny here in MBY with a temperature of 84 and a DP of 72 that DP is down from the 75 that is was a while ago. 

[Hawkeye]

The storm was lifting north of me, but it is now building back sw and hitting me pretty good.  I'm not getting bad wind, yet, but there have been a bunch of close lightning strikes.

[Hawkeye]

I am getting torrential rain and strong wind.  About five minutes ago severe wind hit and bent my trees over.

[Hawkeye]

This is our worst storm since the derecho.  I am getting sustained 40 mph gusting to 60 for 10+ minutes.

[Tom]

1 minute ago, Hawkeye said:

This is our worst storm since the derecho.  I am getting sustained 40 mph gusting to 60 for 10+ minutes.

TOR Warning!  Hope your going to be alright..:looks nasty on radar!

[Hoosier]

LOT mesoscale update

 

.MESOSCALE...
Issued at 546 PM CDT Mon Jul 15 2024

Explosive severe thunderstorm development has taken place across
Iowa, with storm tops exceeding 65kft. Special soundings from
DVN and ILX both show extreme instability and moderate deep
layer shear, though sufficient shear to support storm scale
organization in light of the extreme instability.

Already seeing signs of amalgamating cold pools/downdrafts with
convection over Iowa with radar showing some developing rear
inflow jets. The evolution of the convection so far continues to
fit the expectations for today with evolution to QLCS well
underway. As cold pool strengthens, would anticipate a QLCS to
begin accelerating eastward with increasing damaging wind threat
as storms approach and cross the Mississippi River.

Strengthening low level jet this evening over northern Illinois
should result in a ramping up of low level shear and coincident
increasing threat of QLCS tornadoes with bowing segments and/or
line embedded supercells. Given the shear/instability combo,
threat is certainly there for a large number of QLCS tornadoes
this evening over northern IL.

Recent satellite/radar imagery shows some cells developing over
far northern Winnebago County near the Wisconsin line. This
could be the beginnings of a "warm air advection" wind ahead of
the Iowa QLCS, which if it is and continues to fill in this
could result in a potential significant/high end flash flood
threat in our CWA if storms drift south of the IL/WI border.
Given the vulnerability of the Rockford area due to nearly 10"
of rain over the past 48 hours, this will be something that we
will be monitoring extremely closely.

- Izzi

 

[OttumwaSnomow]

Dome held strong I just got 0.0  Last Wednesday  I watched a huge cell   drop southeast   and miss Wapello  county to west (I got caught  in that tremendous  cell).  Sun am a  dying line went over my land and blew up 1 mile east of me (I drove and saw the puddles etc, .60 closeby). Sunday eve a tremendous  cell blew up and rained out  a few miles to my north.   Today was rolling toward me from des metro. Died and refire se of me!!!!!   Honestly  I have some foul language  I could use about  the crap hole weather place.   The lawns more burned up in Ottumwa  Iowa than   100s of miles around  most summers.  Research  it you will see mby probably  the least rain in Iowa  since May 26th.  Attached  below are some of my misses.

 

[Andie]

Just 2 more 100* days and Highs of 93.  
Feels like Christmas!

[Hawkeye]

I got nearly 2.6" of rain from this, which may be the most from a single storm in about ten years.  It poured for 60-90 minutes.  While it was still not heavy enough to flood the patio and back up to the house, which is how we've gotten water in the basement in the past, the strong wind blew the rain against the north and west sides of the house for a long time, so the water piled up against the foundation and leaked in.  I'm going to spend the rest of my evening trying to clean up.  I have to move some big, heavy stuff to dry underneath.

[james1976]

Looks like Chicago is about to get hit!

[Hoosier]

Nice storm here.  Got pretty windy and the power flickered several times, but no signs of damage right here from what I can tell.  I saw several green flashes in the sky that looked like transformers blowing.  

Looks like there were multiple tornadoes in Chicago metro, and might've had something tornadic in the city again for the 2nd night in a row.  

[westMJim]

We were lucky last night as the severe storms were to our west and south. Here in Grand Rapids the official H/L yesterday was 85/66 there was 1.90” of rainfall the peak wind gust was 39 MPH that came in the storms late Sunday into early Monday. For today the average H/L is 83/63 the record high of 97 was in 2012 the coldest high was 71 in 2014. The record low of 42 was in 1945, the warmest low of 76 was in 1931. The record rainfall of 1.47” was in 1988.

A moderate thunderstorm rolled thur here last night, I had 0.30” of rainfall. The overnight low here was 67 the current temperature is 69 with mostly clear skies.

[westMJim]

We are now about half was through July 2024. The mean at Grand Rapids so far is 71.6 the highest reading so far is just 86 there has been 5.10” of rainfall. At Lansing the mean so far is 71.7 they have official reported 3.96” of rainfall. The highest reading there so far is 88 and the lowest is 46. At Muskegon the mean there so far in71.6 there has been 1.71” of rain. The highest so far is 85 and the lowest so far in 46. So far this has been a rather typical July in our area.

[chescowxman]

Here in East Nantmeal we exceeded 90 degrees for just the 2nd time this year (90.5) with the 2nd hottest day of the year behind only the 91.9 on June 22nd. Other area high temps yesterday included Brandwine Airport (95.0) Chester Springs (94.9 ) and Warwick Twp. (94.0). Today will be even hotter with widespread mid to upper 90's. Shower chances increase later today and again tomorrow as a cold front moves through later Wednesday. It will turn much more comfortable by Thursday with temperatures closer to average for what is normally our warmest week of the year.

Chester County Records for today: High 100 degrees at Coatesville (1900) / Low 46 degrees also at Coatesville (1929) / Rain 2.66" at Kennett Square (1911)

[Stormy]

Heard the now familiar wailing of sirens well before the storm rolled through last evening, but thankfully it was just a good strong t. storm here, which is how I like them. It was not as visually awesome, but got nearly dark as it moved in. Max wind only 43 mph. I ended up with 1.32" which brings my July total to 3.62". Around 0.90" of that fell in 15 minutes. Had a few close lightning strikes as the rain was decreasing. It was getting a little dryish again so I really appreciate this rain. Places just to my se. are wetter as a very narrow swath (isolated storms) of heavy rain ( 1"+) fell there on the day Beryl crossed Illinois. Had only a few hundreths here when storms passed nearby at times last week and early Sunday.