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Cary Mock @cj-mock.bsky.social · 09/10/2026

San Diego, CA under a tropical storm watch for Tropical Storm Rachel. San Diego also was affected by the 1939 Long Beach tropical storm after an intense heat wave, though on the periphery.

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Cary Mock @cj-mock.bsky.social · 09/10/2026

Isias now a major hurricane but will probably weaken some at landfall, peak surge forecast below, up to 9 feet around Pensacola. My 1778 hurricane information from several sources clearly show the surge then was over 12 feet.

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Cary Mock @cj-mock.bsky.social · 07/10/2026

Eventual Hurricane Isaias to hit just west of Pensacola on this Friday/Saturday (Oct 9-10). On those dates in 1778, a major hurricane hit Pensacola, among strongest they ever had. Well documented from British archives, I got from trips to London.

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Cary Mock @cj-mock.bsky.social · 07/10/2026

James Pleasants Waddell, Athens GA, diary, Oct 11-13, 1846 during the passage of the big hurricane to the East through S Carolina.

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Cary Mock @cj-mock.bsky.social · 02/10/2026

I got 13 S Carolina October hurricanes for the last 313 years, so October hurricanes are rare. Quite a drop in the latter half of the month.

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Cary Mock @cj-mock.bsky.social · 01/10/2026

I got a marginal cat 1 hurricane for GA/SC (probably came from the Bahamas and skirted FL) for Oct. 1, 1820. Only got plantation diaries and newspapers, no detailed ship logs. That is routine for a lot of antebellum S Carolina storms.

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Cary Mock @cj-mock.bsky.social · 25/09/2026

This storm was a Nor'easter, probably stronger than the one that will occur this weekend, But it was definitely not a hurricane tropical wise.

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Cary Mock @cj-mock.bsky.social · 23/09/2026

I had mentioned that I have some suspected strong Nor'easters in September for the Northeast USA in my earlier records. This is one of them, from the NY Daily Advertiser, around September 20-23, 1819. I have instrumental records that demonstrate the storm was not tropical, and it lasted too long.

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Cary Mock @cj-mock.bsky.social · 21/09/2026

Likely rare September Nor'easter later this week off New England. If near the coast, could pack gusts up to hurricane force. I got a number of such storms in the older historical record, takes a lot of effort to analyze the data closely to know whether it is tropical or not.

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Cary Mock @cj-mock.bsky.social · 21/09/2026

Polo forecasted to be a Category 5 hurricane.

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Cary Mock @cj-mock.bsky.social · 20/09/2026

I think this 1849 diary entry is southwest of Ottawa, Canada.

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Cary Mock @cj-mock.bsky.social · 16/09/2026

In thinking of the Gulf of California tropical possibility, I recall Hurricane Nora in 1997 impacting Arizona. I was living in Oregon then. en.wikipedia.org/wiki/Hurrica...

en.wikipedia.org

Hurricane Nora (1997) - Wikipedia

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Cary Mock @cj-mock.bsky.social · 13/09/2026

Dale Morgan back in 1961 on the significance of overland trail diaries.

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Cary Mock @cj-mock.bsky.social · 13/09/2026

Found a diary online at U of NC, it is not that good but might shed a little light on August 1837 in S Carolina during the hurricane season.

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Cary Mock @cj-mock.bsky.social · 11/09/2026

I think the Atlantic season of 1864 perhaps officially the only one with no USA land impact. Mike Chenoweth and I do have a July 1864 system that came from off S Carolina and went into NC and VA, probably a minimal tropical storm but it was a storm.

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Cary Mock @cj-mock.bsky.social · 11/09/2026

I haven't looked closely at my S Carolina 1752 hurricane stuff for awhile (I got everything on it that I know of). Will try to find time next week. www.fitsnews.com/2023/09/15/p...

fitsnews.com

Palmetto Past & Present: The Greatest Hurricane In South Carolina History - FITSNews

News flash: It's not Hugo ...

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Cary Mock @cj-mock.bsky.social · 09/09/2026

German map of a typhoon in southern Japan. It made landfall a little away from my navy ships, and I currently have it as a tropical storm but may promote it now up to a typhoon.

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Cary Mock @cj-mock.bsky.social · 09/09/2026

I was told some posting big 10-15 ft waves around LA lately. The 1939 tropical storm (near a hurricane) produced 30+ ft waves for that area. Ship logs at Long Beach on the Douglas Sea Scale hourly verify this.

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Cary Mock @cj-mock.bsky.social · 09/09/2026

Probably a weak tropical storm around Oahu in early August 1864 (El Nino year) which they termed a summer Kona. I have two weak tropical storms for 1864 but none of them were a hurricane.

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Cary Mock @cj-mock.bsky.social · 07/09/2026

Hurricane Lowell to pass Kauai a little after midnight, Hawaii time. Center will pass west, but likely within 1 degree longitude, about 60 miles. Currently the hurricane force winds are about 60 miles in the radius, so Kauai should expect hurricane level impact.

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Cary Mock @cj-mock.bsky.social · 31/08/2026

Now social media buzz on a hurricane approaching California in a week. Can't say no, but a week out and only one model really suggests it at this point. My opinion, if a low end cat 1 Hurricane hit, it's not as damaging as a real strong atmospheric river in the winter.

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Cary Mock @cj-mock.bsky.social · 27/08/2026

One of the big themes for 1849 overland emigration is the mention of "desert" in the context of perceptions vs real experiences in the West. My diary tabulation, no doubt a real desert in the Humboldt... but quite a high number in SW Wyoming to Green River.

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Cary Mock @cj-mock.bsky.social · 16/08/2026

Regarding El Nino, Hawaii should be wary of possible severe drought this coming winter.

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Cary Mock @cj-mock.bsky.social · 14/08/2026

Here is a Honolulu, HI rain record for Dec 1864 during Kona storms

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Cary Mock @cj-mock.bsky.social · 14/08/2026

Naalehu on the Big Island the place to go near possible hurricane landfall.

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Cary Mock @cj-mock.bsky.social · 13/08/2026

Lala now forecasted to become a hurricane!

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Cary Mock @cj-mock.bsky.social · 12/08/2026

Eventual Tropical Storm Lala to impact the Hawaiian Islands this weekend. Right now, not likely to be a Hurricane partly due to somewhat lower sea surface temperatures (green color) near the islands but at upper Tropical Storm intensity can be very impactful.

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Cary Mock @cj-mock.bsky.social · 10/08/2026

It is that time of the year in a El Nino year, talk on Hawaii hurricane. May prompt me to gaze more at my historical Hawaii hurricane stuff some today.

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Cary Mock @cj-mock.bsky.social · 10/08/2026

Typescript transcription of the Oliver Hart diary of Charleston, SC, on a hurricane passing offshore this day in 1778. Original diary at the S Caroliniana Library at U of SC. This hurricane went on to impact New England during the Battle of Newport RI.

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Cary Mock @cj-mock.bsky.social · 08/08/2026

Right now there's nothing exciting for this season for South Carolina. Hurricanes. Always a chance in September though. www.islandpacket.com/news/local/a...

islandpacket.com

Hurricane season in South Carolina peaks soon. Here’s how to prepare

Learn how to prepare, understand watches and warnings and evacuate safely.

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Cary Mock @cj-mock.bsky.social · 07/08/2026

Found a "new" diary entry for the southeast Killing Frost of 1849. The diary lasted for several decades, generally it wasn't very good on the weather but it did have this event.

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Cary Mock @cj-mock.bsky.social · 04/08/2026

Colonel William Loring, in his 1849 report as he arrived towards Ft. Vancouver WA, mentioned the smoke and fires while in Oregon.

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Cary Mock @cj-mock.bsky.social · 01/08/2026

Still thinking of my Japan 19th century typhoons. This for 1874.

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Cary Mock @cj-mock.bsky.social · 29/07/2026

I have looked at the published version of this 1849 diary, but when I visited the Society of CA Pioneers, I never looked at the original one. I assume the published version is ok. oac.cdlib.org/findaid/ark%...

oac.cdlib.org

Hale, Israel F. and Titus Diary, 1849 - OAC

Israel F. and Titus Hale Diary. The Society of California Pioneers

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Cary Mock @cj-mock.bsky.social · 28/07/2026

On this date in 1819, a small but likely very strong hurricane hit the Bay of St. Louis and Mississippi.

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Cary Mock @cj-mock.bsky.social · 27/07/2026

Not many diaries on the Overland Trail Route to Oregon in 1849. I have a handful, the Osborne Cross, William Watson, David Pease, and William Pattison diaries come to mind. Had to rely more on Hudson's Bay Company records.

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Cary Mock @cj-mock.bsky.social · 27/07/2026

With the fires going on right now in the Pacific Northwest, thinking of my 1849 fires from BC to N CA. This from Ft Victoria BC in 1849.

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Cary Mock @cj-mock.bsky.social · 25/07/2026

For many years when people think about historical climatology they think of Thomas Jefferson. No doubt he did a lot of great things but robust historical climatology is a lot more than just Thomas Jefferson. jeffersonpapers.princeton.edu/welcome/the-...

jeffersonpapers.princeton.edu

The Jefferson Weather and Climate Records - The Papers of Thomas Jefferson

The history of Earth’s weather (conditions at a particular place and time) and climate (long term weather patterns and regional environments) is the basis of understanding modern climate trends and we...

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Cary Mock @cj-mock.bsky.social · 24/07/2026

Hurricane Fausto forecasted to be a low-end tropical storm by the time it gets near Oahu. Pressures may be too high for it to sustain that though.

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Cary Mock @cj-mock.bsky.social · 23/07/2026

Verbal descriptions for late January 1862 in San Francisco, suggesting it was their coldest day in the historical record.

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Cary Mock @cj-mock.bsky.social · 20/07/2026

Soon to be Tropical Storm Bertha. I have a similar intensity and track of a storm in mid September 1837 that had crossed N Florida and re-emerged over the Gulf and impacted New Orleans.

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Cary Mock @cj-mock.bsky.social · 13/07/2026

Was looking at the Colusa Sun newspaper, CA 1862. Map, red star is Colusa's location The back sloughs reported 16 ft deep, but it doesn't appear that Colusa itself was flooded. 15 miles SSE, Grand Island was flooded. Not sure if Colusa has slightly higher elevation.

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Cary Mock @cj-mock.bsky.social · 12/07/2026

Letter from San Bernadino, CA describing the S CA 1862 floods.

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Cary Mock @cj-mock.bsky.social · 12/07/2026

My Winter 1861-1862 California floods newspaper titles list that I got data.

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Cary Mock @cj-mock.bsky.social · 12/07/2026

In a newspaper search for January 1862, I was looking at January 1861 instead, but found this accidently concerning 1849 that I don't believe that I have.

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Cary Mock @cj-mock.bsky.social · 05/07/2026

American Revolutionary documentaries mentioned the 1778 August Hurricane, so again gazing at my data. Found a letter from Paul Revere (the same famous Paul Revere).

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Cary Mock @cj-mock.bsky.social · 04/07/2026

I got the July 4 1776 record for Philly below from Phineas Pemberton. Probably the best instrumental record in America during that time. Ti=temp inside, To=temp outside.

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