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May Observations 2023


yotaman
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Such a cool raw day here today. Already picked up .63" with a temp of 62. Blustery out there too. I am sure those who picked this weekend for a vacation at the beach are not happy.

EDIT: Ended up with .73" for the day. High was only 64.

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 At 2:30 PM, it is windy from the NW with light rain and 57 F due to the nearby offshore low. This is ~27 F BN for mid afternoon on 5/27! Just 4 years ago at this time on this date it was ~100 F, 43 warmer!

 From this area to Hunter, we're at ~2.25" of rain today, ~2" more than expected as of yesterday.

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6 hours ago, donsutherland1 said:

Today is only the second day on which Savannah set or tied daily records for precipitation, lowest maximum temperature, and lowest minimum temperature on the same date. The only other date was September 22, 1897 when 2.30" of rain fell, the low was 46 and the high was 54.

 Wow, that's fascinating! Thanks for posting that, Don.

 - The high ended up at only 61, seven below the record low high for the date and near the normal daily high for mid-winter!
- That was the lowest high since way back on April 8th! Only six days since 2/1/2023 had cooler highs.
- Only two other periods going way back to 1874 had a high that low this late in the season: 61 on 5/28/1934 and the 57/58 of 6/10-11/1913. There's not another high that low on the calendar til the aforementioned 54 on 9/22/1897!

 5/28/1934 weather map shows a similar setup to 5/27/2023 with a strong extratropical low just offshore FL moving NNE after a cool high in the NE had been wedging down into the SE. It was similarly windy on the SE coast with gales. A landfall occurred on the lower SC coast late on 5/28/1934 pretty similar to what's about to occur on 5/28/2023 except that low strengthened through landfall to 29.35".

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1934/19340528.pdf

 The cold 6/10-11/1913 highs (along with what is still the coldest June low on 6/12/1913) were during another oncoming El Niño (one that late that next Feb produced a very rare major deep SE winter storm that included SAV) and were caused by SE rains that were generated by an unseasonably strong cold front that appears to have stalled out near N FL. This cold front had been pushed south by an unseasonably cold, strong high that had earlier dropped into the Lakes and lead to what then was about the coldest on record in the entire month of June for much of the NE, Ohio Valley, and near the Lakes along with freezes or frosts in many of these areas per this:

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1913/19130609.pdf

 I just saw that the cold, rainy 9/22/1897 was on the backside of a tropical storm:

https://www.nhc.noaa.gov/data/tracks/tracks-at-1897.png

 The SAV high of 54 on 9/22/1897 was tied for the lowest high among major US reporting stations per this:

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1897/18970923.pdf

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2 hours ago, GaWx said:

near the normal daily high for mid-winter!

Yeah, yesterday and the night before had a winter feel to them, and given time of year and recent warmer weather they even felt a little colder.  It was remarkable, but honestly kinda miserable especially for the first week of summer vacation...

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6 hours ago, GaWx said:

 Wow, that's fascinating! Thanks for posting that, Don.

 - The high ended up at only 61, seven below the record low high for the date and near the normal daily high for mid-winter!
- That was the lowest high since way back on April 8th! Only six days since 2/1/2023 had cooler highs.
- Only two other periods going way back to 1874 had a high that low this late in the season: 61 on 5/28/1934 and the 57/58 of 6/10-11/1913. There's not another high that low on the calendar til the aforementioned 54 on 9/22/1897!

 5/28/1934 weather map shows a similar setup to 5/27/2023 with a strong extratropical low just offshore FL moving NNE after a cool high in the NE had been wedging down into the SE. It was similarly windy on the SE coast with gales. A landfall occurred on the lower SC coast late on 5/28/1934 pretty similar to what's about to occur on 5/28/2023 except that low strengthened through landfall to 29.35".

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1934/19340528.pdf

 The cold 6/10-11/1913 highs (along with what is still the coldest June low on 6/12/1913) were during another oncoming El Niño (one that late that next Feb produced a very rare major deep SE winter storm that included SAV) and were caused by SE rains that were generated by an unseasonably strong cold front that appears to have stalled out near N FL. This cold front had been pushed south by an unseasonably cold, strong high that had earlier dropped into the Lakes and lead to what then was about the coldest on record in the entire month of June for much of the NE, Ohio Valley, and near the Lakes along with freezes or frosts in many of these areas per this:

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1913/19130609.pdf

 I just saw that the cold, rainy 9/22/1897 was on the backside of a tropical storm:

https://www.nhc.noaa.gov/data/tracks/tracks-at-1897.png

 The SAV high of 54 on 9/22/1897 was tied for the lowest high among major US reporting stations per this:

https://library.oarcloud.noaa.gov/docs.lib/htdocs/rescue/dwm/1897/18970923.pdf

Both yesterday and 9/22/1897 were extraordinary days, especially as records go back to 1874.

The information you provided is terrific.

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Looks like the warmest it's going to get in Greensboro, in the month of May is 84 degrees (happened to also be 84 in April/March as well weirdly enough.) This is the coolest May by this metric since 1983. Less remarkable in terms of average temp, only a couple degrees below average 

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Temps have been up and down repeatedly today as showers came thru. Had a high of 83 before a heavy shower came thru causing the temp to drop to 68. Sun came out and temp went back up to 77 before another shower came thru and dropped it to our current temp of 71. Have picked up .29" today giving me a month total of 5.89".

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Pleasant day today for the last day of May. Temps stayed in the 60's until after 3:00 pm when the sun started coming out. High was 75 after a low of 63.

 

Monthly stats:

High temp - 88

Low temp - 44

High dew point - 73

Low dew point - 34

Rainfall - 5.89"

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