Chicago Storm

Spent the weekend over in Saugatuck, MI. Solid weather prevailed, allowing for all activities.

This next weekend into early the following week will be the time, as the better flow and disturbance train returns. Until then it looks to stay mostly zzz on the front of interesting wx.

seasonal trends will probably win out. .

Yea, we haven't had any real pushes of heat/humidity this far northeast into the sub-forum yet this warm season. Even so, most areas around here (Minus near the IL/WI border) are still on pace to hit or exceed average for amount of 90° days on the year.

The difference between official OBS sites of MLI and RFD is significant, to say the least. MLI has 23 90°+ days on the year, compared to 5 at RFD. Both sites are only ~87 miles apart.

Made it into the 90's across portions of the area this past Friday (July 14th). ORD and MDW topped out at 90. ...2023 90°+ Day Tally... 9 - ORD 8 - MDW 7 - DPA 7 - ARR 6 - LOT 6 - PWK 5 - RFD 3 - UGN

Didn’t have a visual from here at the weather office at ORD. Rain and haze prevented viewing until the area of interest was moving from Rosemont into Park Ridge. At that point I could see a big ground scrubbing wall cloud. Probably was something under it, but no way could say with confidence given the visibility issues. .

took the L in Northeast Illinois. .

Small corridor across Southern DuPage/Will/Cook is the corridor of interest at this point. Warm front/recovery made it far enough north for MCV influence overlap.

Recovery across North-Central and Northeast Illinois is limited and struggling, to say the least.

CAM's are overdone on the environment, and likely their solutions.

Timing isn't the biggest issue. Ridge placement and environment are, both of which favor the southwestern/southern portions of the sub-forum for this upcoming stretch.

68MPH peak wind gust at MDW a short time ago, associated with a downburst. .

Lake enhanced cold front. .

as it always does. we’ll quickly will be descending into the worst time of year before ya know it. .

deep spartman shit there.

Back-to-back days with 90's across the area. Yesterday was perfect for the 4th, with highs in the 90's, some humidity, and afternoon isolated showers/t'storms in the area. Yesterday it topped out at 92 at ORD and MDW, and 90 at RFD. Today it topped out at 91 at ORD and 92 at MDW, with RFD 89'd. ...2023 90°+ Day Tally... 8 - ORD 7 - MDW 7 - DPA 7 - ARR 6 - LOT 5 - RFD 5 - PWK 2 - UGN

Whole modem die or transmission line? .

Chicago/O'Hare received 3.35" of rainfall on July 3rd, which broke the record precipitation total for the date of 2.06", which was set in 1982.

Forgot to mention the 90's this past Friday, June 30th. Topped out at 91 at ORD and 90 at MDW. ...2023 90°+ Day Tally... 6 - ORD 6 - ARR 5 - DPA 5 - MDW 4 - RFD 4 - LOT 3 - PWK 1 - UGN

DVN just issued a PNS with survey info for around there... ...SIGNIFICANT STRAIGHT-LINE WINDS ACROSS NORTHEAST MISSOURI, FAR SOUTHEAST IOWA, AND WESTERN ILLINOIS... ESTIMATED PEAK WIND: 100 TO NEAR 120 MPH LENGTH /STATUTE/: APPROXIMATELY 150 MILES WIDTH /MAXIMUM/: 15 MILES FATALITIES: 0 INJURIES: 2 START DATE: 06/29/2023 START TIME: 10:00 AM CDT CENTER START LOCATION: NEAR SOUTH GORIN / CLARK COUNTY / MO CENTER START LAT/LON: 40.3570 / -92.0260 END DATE: 06/29/2023 END TIME: 11:45 AM CDT CENTER END LOCATION: 5 NNE AVON IL / WARREN COUNTY / IL CENTER END LAT/LON: 40.6540 / -90.4480 NOTE THAT "END LOCATION" IS NOT LIKELY WHERE SIGNIFICANT WINDS ENDED BUT WHERE THE STORMS MOVED INTO THE NWS CENTRAL ILLINOIS COUNTY WARNING AREA. SURVEY SUMMARY: THESE WINDS BROUGHT SIGNIFICANT DAMAGE TO DOZENS OF STRUCTURES WHILE ALSO DOWNING HUNDREDS OF TREES, IN THE TOWNS AND CITIES OF WYACONDA, MO, KAHOKA, MO, WAYLAND, MO, MONTROSE, IA, KEOKUK, IA, FERRIS, IL, ADRIAN, IL, LA HARPE, IL, ROSEVILLE, IL, AND BUSHNELL, IL. DAMAGE AT FIRST IN NORTHEAST MISSOURI WAS IN-LINE WITH 80 TO 90 MPH WINDS, WITH APPROXIMATELY 100 LARGE TREES DOWNED ACROSS AREAS SURVEYED IN EASTERN SCOTLAND COUNTY AND MUCH OF CLARK COUNTY. THERE WAS SOME MINOR ROOF DAMAGE INCLUDING TO BUILDINGS DOWNTOWN KAHOKA. DAMAGE INCREASED IN INTENSITY NEAR MISSOURI STATE ROUTE 27. WINDS FURTHER INCREASED IN BOTH INTENSITY AND NORTH-TO-SOUTH FOOTPRINT AS THE DERECHO APPROACHED THE MISSISSIPPI RIVER, WITH OVER A HUNDRED TREES DOWNED ALONE IN THE TOWNS OF MONTROSE AND KEOKUK, IA. MANY STRUCTURES WERE DAMAGED WITH TREES FALLING ON THEM AND SOME FROM WINDS ALONE, INCLUDING MULTIPLE MOBILE HOMES ON THE NORTH SIDE OF KEOKUK, A ROOF BLOWN OFF A HOME IN KEOKUK, AND SEVERAL OUTBUILDINGS OR GARAGES HEAVILY DAMAGED. IN ILLINOIS, DAMAGE IN HANCOCK COUNTY WAS CONSISTENT WITH WINDS LIKELY NEARING 120 MPH. THIS INCLUDED A LARGE COMMERCIAL RADIO TOWER FOLDED OVER, SEVERAL NEW UTILITY POLES SNAPPED AT THEIR BASES, MULTIPLE MOBILE HOMES SEVERELY DAMAGED, SEVERAL GRAIN BINS AND OUTBUILDINGS HEAVILY DAMAGED, SEVERELY DENTED, AND/OR BLOWN FAR FROM THEIR ORIGINAL LOCATION, AND COUNTLESS LARGE TREES DOWNED. THERE WERE TWO REPORTED INJURIES IN FERRIS, ILLINOIS.

no comment on how it worked out in the end? .

You can edit the thread title by editing your first post in the thread.

Rapid decay of the derecho as it pushed through the IND/LMK/PAH CWA's. The heavily modified air from the morning MCS in E. IL/SW. IN/W. KY killed it off fairly quickly. Looks like renewed development is underway across SE. Illinois, with quality still TBD. A staple off high end MCS events, thought.

RIJ on the derecho being sampled at 95KT on KILX.