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May Observations 2023


yotaman
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New month, new stats. Post them here. Looks like it will a beautiful week for all with below normal temps for most of the week.

Edit: Beautiful day here today for the 1st of May. High was 71 after a low of 49. Currently 70/43 just before 6 pm.

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 The weather has been near ideal from my perspective this week to this point. Much of the last few weeks has been very nice. Today is another great day, but tomorrow will start the increase in dewpoints.
 It is highly probable that we won't see another extended period similar to this until very late Sept and more likely October. So, I've been taking in every bit of this bonus early springlike period. 

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Very aggressive thunderstorm blew up over my house this afternoon. Some very  close lightning strikes. Only dropped 0.08” of rain as it quite literally seemed to blow up overhead. 
 

High of 87.3 before the storm after a low of 63. Currently sitting at a very humid 77.2

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A good steady soaking rain here this morning. Amounts not crazy, around a third of an inch overnight plus this morning, but the yard and garden appreciates it. 
 

EDIT: Looks like 0.37” will be our total from the morning rain. Some returns east of here, not sure they’ll make it this far. More rain than expected

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Area Forecast Discussion
National Weather Service Wilmington NC
939 AM EDT Fri May 19 2023

.UPDATE...
Heavy rain continues over the Cape Fear region, as a mesolow has
set up. Both observations and radar estimates show rainfall
totals of 4-6 inches over parts of Brunswick and New Hanover
Counties over the last few hours. Some estimates and preliminary
data even show some spots recording over 7 inches. A Flash Flood
Warning has been issued for these areas until noon EDT (this
will need more evaluating later). Training mesolow is nearly
quasi-stationary at this point, at least another 2-3 inches of
rain is possible over the next few hours.

Northern extent of the surface low has started to enter the
adjacent northeast SC coastal waters over the last couple of
hours, seemingly kicking a little further out to the northeast
than expected. This would lead you to believe that there would
be a decrease in the rain, but latest analysis also shows
another nearly vertically stacked low in the 925-700mb layer.
This has caused some pretty deep moisture convergence/transport
and frontogenesis extending roughly from 1000mb to 700mb, per
the SPC Mesoanalysis page. All of this is feeding directly into
the Cape Fear region from the ESE.

Despite some rather speedy upshear and downshear Corfidi vectors
(about 25kts), this strong, deep moisture convergence under the
training mesolow means this won`t slow down over the next few
hours.

&&

New radar loop image as of just before 3 PM!

 

Hg11dVj.gif

&&

Public Information Statement
National Weather Service Wilmington NC
454 PM EDT Fri May 19 2023

...MAX 24-HR RAINFALL ACROSS SOUTHEAST NC - MAY 19 2023...

Location                     Amount    Time/Date       Provider

...North Carolina...

...Brunswick County...
4 SW Belville                10.56 in  0447 PM 05/19   Mesonet
3 SSW Belville               10.31 in  0446 PM 05/19   Mesonet
1 SW Leland                  8.33 in   0415 PM 05/19   Mesonet
1 N Belville                 7.08 in   0415 PM 05/19   Mesonet
Leland                       6.75 in   0440 PM 05/19   CWOP
Leland                       6.67 in   0415 PM 05/19   Mesonet
West End Holden Beach        3.13 in   0440 PM 05/19   CWOP
Sunset Harbor (NC)           2.73 in   0440 PM 05/19   CWOP
Green Swamp                  2.60 in   0353 PM 05/19   RAWS
Shallotte Fire Station       2.45 in   0440 PM 05/19   CWOP
Bolivia                      2.36 in   0437 PM 05/19   CWOP
Lockwoods Folly (NC)         1.87 in   0435 PM 05/19   AWS
Shallotte (South)            1.71 in   0438 PM 05/19   CWOP
Shallotte                    1.57 in   0440 PM 05/19   CWOP
Holden Beach                 0.71 in   0430 PM 05/19   CWOP

...New Hanover County...
2 ENE Belville               8.15 in   0440 PM 05/19   AWS
2 WNW Ogden                  4.24 in   0415 PM 05/19   Mesonet
Wilmington                   4.13 in   0353 PM 05/19   ASOS
Murrayville Public Works     3.37 in   0428 PM 05/19   CWOP
Smith Creek                  3.29 in   0415 PM 05/19   Mesonet
Bayshore (NC)                1.52 in   0440 PM 05/19   AWS
Masonboro                    1.37 in   0440 PM 05/19   CWOP
Masonboro Yacht Club         1.25 in   0345 PM 05/19   HADS

...Pender County...
Surf City                    3.32 in   0420 PM 05/19   Emergency Mngr
Back Island                  3.09 in   0418 PM 05/19   RAWS
3 SSW Hampstead              2.92 in   0415 PM 05/19   Mesonet
Saltwater Landing (Surf City 2.61 in   0440 PM 05/19   CWOP
&&
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 Refreshing dewpoints mainly in the upper 40s/50s have dominated since yesterday morning and are expected to continue through the weekend. This long period of dewpoints this low is rare for this area in late May. The last time something even close to this was in 2013.

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This area has today gotten much more rain than expected yesterday with ~2" already fallen so far vs <1/2" progged then for the entire day! We even had thunder recently, which hadn't been expected. Temps have been in the chilly mid 50s with N wind gusts into the 30s. The 24 hour high is likely going to be the 12:01 AM's 63, which would be 5 below the 1972 record low high of 68! Normal high is 87.

 The walks the last few evenings have been fabulous for this time of year with dewpoints in the upper 40s (last evening) to upper 50s!

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