TheClimateChanger

Me? I was just asking a relevant question about the current weather conditions. I was curious as to whether there was any validity to my observation, and if so, what the causes might be.

Minor earthquake near Cleveland this morning: Earthquake recorded this morning near Madison (cleveland19.com)

Just by way of example, here is the July 1995 heat wave. There was a much more pronounced heat island effect at O'Hare, and especially Midway, relative to Rockford than in recent heat waves (including the current one). RFD ORD MDW

Are low temperatures becoming more uniform between urban areas and suburban/rural areas? I feel like in the past, it was common for their to be a 5-10+ degree difference in low temperatures during heat waves between the big urban airports and surrounding sites. And now it looks like most places are within a couple degrees of each other. O'Hare and Midway were 81, while suburban Kenosha was 82 and Waukegan was 83. Rockford was 79. Janesville and Madison, in Wisconsin, both 81. Admittedly, the typical cool spots (Aurora) were still somewhat cooler at 76, but most places were right around 80. Has anyone else noticed this change, or am I misremembering?

Many gusts over 40 knots over the lake. Huron Harbor Lighthouse had a peak gust of 56 knots, and a C-MAN station on South Bass Island observed a peak gust of 51 knots. A 56 knot gust was observed earlier at the buoy north of Lorain.

Severe Weather Statement National Weather Service Cleveland OH 1121 PM EDT Wed Aug 23 2023 OHC043-077-240345- /O.CON.KCLE.TO.W.0026.000000T0000Z-230824T0345Z/ Huron OH-Erie OH- 1121 PM EDT Wed Aug 23 2023 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR NORTHWESTERN HURON AND ERIE COUNTIES... At 1120 PM EDT, a severe thunderstorm capable of producing a tornado was located between Bellevue and Kimball, or 9 miles northwest of Norwalk, moving south at 15 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This dangerous storm will be near... Bellevue around 1130 PM EDT. Other locations impacted by this tornadic thunderstorm include Monroeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4132 8281 4132 8271 4123 8270 4123 8284 4129 8284 TIME...MOT...LOC 0320Z 014DEG 12KT 4130 8277 TORNADO...RADAR INDICATED MAX HAIL SIZE...1.00 IN $$ Sullivan

At 10:35, a 60 mph wind gust was observed at Port Clinton Keller Field.

Severe Weather Statement National Weather Service Cleveland OH 1055 PM EDT Wed Aug 23 2023 OHC043-077-093-123-143-240315- /O.CON.KCLE.SV.W.0154.000000T0000Z-230824T0315Z/ Huron OH-Ottawa OH-Erie OH-Sandusky OH-Lorain OH- 1055 PM EDT Wed Aug 23 2023 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT FOR NORTHERN HURON...OTTAWA...ERIE...NORTHEASTERN SANDUSKY AND SOUTHWESTERN LORAIN COUNTIES... At 1054 PM EDT, severe thunderstorms were located along a line extending from Sandusky to near Wakeman, moving southwest at 20 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Emergency management. There have been several reports of tree damage in Sandusky. IMPACT...Minor damage to vehicles is possible. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Sandusky, Norwalk, Western Vermilion, Vermilion, Port Clinton, Kelleys Island, Put-In-Bay, Bellevue, Wellington, Northern Milan, Milan, Wakeman, Castalia, Oberlin, Catawba Island, Pittsfield, Monroeville, Marblehead, Berlin Heights and Bay View. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4159 8262 4155 8265 4153 8265 4142 8249 4147 8238 4118 8211 4111 8220 4110 8240 4133 8297 4148 8298 4155 8288 4165 8283 TIME...MOT...LOC 0254Z 032DEG 16KT 4144 8270 4119 8247 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ Sullivan

High water rescues on I-90 in Lakewood, as slow moving thunderstorms have dumped up to 4 inches of rain.

Maybe I'm confused about criterias over there. The forecast for Allen County, Indiana calls for heat index values up to 106, even though there are no alerts in effect. For clarification, alerts currently in effect. There is an excessive heat warning for tomorrow.

The intensity of the heat seems to be surprising the NWS. Heat index of 108F at Hillsdale, Michigan, 103F at Adrian, Michigan, and 107F at Wauseon, Ohio. None of those places are even under a heat advisory today.

Current HX of 114F at DSM ties August monthly maximum for all hours dating back to 1936.

Is the 84F dewpoint at Gary accurate? Current HX there is up to a ridiculous 124F.

It's so hot, to quote the Real Slim Shady, even your palms are sweaty.

Wow, 112F heat index at Southwest Michigan Regional, and they are under a heat advisory. That should be a climate emergency, not a heat advisory.

The current temperature at MKE is 98F. If it holds or increases in the next hour, it would be the highest 2 pm reading on record dating back to 1947 in the month of August. The current record is 98F, from August 16, 1988, and earlier dates. Not sure of the earlier date(s), but I believe August 1, 1988 is one.

I will say in the interest of fairness, one thing that does call into question the NWS's claim is that they are comparing 5-minute data to hourly observations. To be fair, they probably should limit the comparison to top of the hour data since we don't have 5-minute data for most of that time frame.

Yeah, there's a massive infestation in western Pennsylvania.

Wow, historic. This may very well be the highest RELIABLE heat index reading on record. As noted by Tom Karl & Richard Knight, in their 1996 paper examining the role of climate change on the 1995 heat wave, the HO-83 hygrothermometer had a warm bias of at least 0.5C. This was one of the reasons they were unable to confirm any impact from climate change on the occurrence of extreme heat episodes. However, other research has found warm biases of as much as 2-3C on sunny, light wind days. The design allowed warmed air to recirculate into the housing for the sensor. I hate to bring this up since I was accused of trolling the 1988 drought thread, but ironically it was noted climate denier, Steve McIntyre, who first brought this to my attention.

Might only be a couple days in Chicagoland, but parts of the region are already onto day 4 of extreme heat and humidity.

HX of 112F at MDW and ORD, as of noon local time. New August record for that hour, in the IEM dataset. Also, the highest of any date after August 1st for that hour. Tied highest on record for any hour post 8/15 at MDW.

Sioux City, Iowa breaking heat index and dewpoint records left and right in recent days. The heat index of 122F from Monday was the highest of any hour on record back to 1942.

Tied the warmest low temperature on record (of any date in the year!) at Sioux Falls yesterday. Records date to 1893!

Here is MKE - already starting to see 2023 make the list. The 103F heat index at 10 am today ties highest on record for that hour in the month of August, dating back to 1947.