How low can it go?

[Gary Ward]

28.89 here at I67 right now and plenty of rain. Winds are picking up for the next 4 hours. Tornado watch in effect.
How low is low??

 

[RyanB]

Was 29.23 here earlier. I think that’s the lowest I’ve ever seen around these parts.

 

[soilboy]

Paducah KY hit 28.87, Evansville IN was 28.82. Both new records.

 

[Tools]

Alaska day before yesterday… same thing!

 

[RudyP]

25.69 was recorded in the eye of a hurricane once (I believe at see level).

 

[bflynn]

25.69 was recorded in the eye of a hurricane once (I believe at see level).

I believe that was an estimate. They didn’t actually measure it, they measured around the eye and estimated the decline inside the eye.

 

[sourdough44]

Near 28.95 when the Edmond Fitzgerald sank. Not saying it was a reorder low, maybe it was close for the area.

 

[Pinecone]

I believe that was an estimate. They didn’t actually measure it, they measured around the eye and estimated the decline inside the eye.

"A figure of 870 millibar (25.69 in) was recorded on 12 Oct 1979 by the US Air Weather Service 483 km (300 miles) west of Guam in the Pacific Ocean in the eye of Super Typhoon Tip which involved wind speeds of 165 kts (305 km/h; 190 mph)."

Hurricane Hunter aircraft fly into the eye.

"The National Climatic Data Center determined that the lowest CONUS, land-based, non-tropical, sea level pressure that can be confirmed is 955.0mb (28.20"). This occurred twice in United States history. The first time was on January 3, 1913 at Canton, NY. The second was on March 7, 1932 at Block Island, Rhode Island."

 

[NealRomeoGolf]

"A figure of 870 millibar (25.69 in) was recorded on 12 Oct 1979 by the US Air Weather Service 483 km (300 miles) west of Guam in the Pacific Ocean in the eye of Super Typhoon Tip which involved wind speeds of 165 kts (305 km/h; 190 mph)."

Hurricane Hunter aircraft fly into the eye.

"The National Climatic Data Center determined that the lowest CONUS, land-based, non-tropical, sea level pressure that can be confirmed is 955.0mb (28.20"). This occurred twice in United States history. The first time was on January 3, 1913 at Canton, NY. The second was on March 7, 1932 at Block Island, Rhode Island."

Weird they would consider Block Island as "land based." Not much land.

 

[WDD]

Well, the ISS recorded its outside atmosphere to be ..........

 

[ArrowFlyer86]

29.03 was the lowest I've ever seen in the midwest. It was in Nebraska on 2/26 when that winter storm was ripping through.
I even took a picture of it and meant to ask the same question as the OP!