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Met Autumn BANTER


dmillz25

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BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
334 PM EDT MON OCT 5 2015

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
CENTRAL RICHLAND COUNTY IN CENTRAL SOUTH CAROLINA...

* UNTIL 630 PM EDT

* AT 331 PM EDT...MEDIA REPORTS REPORTED A DAM HAS BEEN BREACHED IN
THE ROCKY FORD LAKE NEAR THE FOREST LAKE AREA
. THIS FLOWS INTO
GILLS CREAK AND DOWN TOWARDS LAKE KATHARINE.

FLASH FLOODING IS GOING TO OCCUR ACROSS THE WARNED AREA.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... FOREST
ACRES AND ARCADIA LAKES ALONG WITH AREAS DOWNSTREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

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The July to September warming in the Tropical Atlantic leading up to the time of Joaquin

was the greatest on record since 1948. You can also see the rapid SST warming 

right along the storm track and the greatest AMO rise from August to September

on record.

 

https://twitter.com/philklotzbach/status/651081042627989504?lang=en

 

http://www.esrl.noaa.gov/psd/data/correlation/amon.us.long.data

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Weenies aside, that really is a disorienting wind history. The slender loop near the Bahamas gives the impression of a large hurricane having appeared out of nowhere.

It more or less did, because it barely moved from the time that it was first classified to the time that it reached hurricane status.

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Remarkable loop on many levels. In addition to the moisture plume feeding in to the Southeast States in tandem with the upper level low, you can really visualize the small escape route that Joaquin took into the Atlantic. Meteorologically, despite the fact that Joaquin escaped seaward, a tremendous evolution of events. 

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It more or less did, because it barely moved from the time that it was first classified to the time that it reached hurricane status.

 

The southwestward drift over time (that very few models were able to recognize, by the way) and then eventual northeastward movement also helped. A weird looking wind field map for sure. 

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Remarkable loop on many levels. In addition to the moisture plume feeding in to the Southeast States in tandem with the upper level low, you can really visualize the small escape route that Joaquin took into the Atlantic. Meteorologically, despite the fact that Joaquin escaped seaward, a tremendous evolution of events. 

 

Good to see you posting John. It's been a record breaking pattern on several fronts. 1000 year rainfall over South Carolina

and record rains in Death Valley.

 

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE LAS VEGAS, NV

514 PM PDT MON OCT 5 2015

...RECORD RAINFALL FOR A 24 HOUR PERIOD FOR OCTOBER AT DEATH

VALLEY...

A TOTAL OF 0.55 INCH OF PRECIPITATION FELL FROM 8 AM ON OCTOBER 4TH

TO 8 AM OCTOBER 5TH AT THE OFFICIAL DEATH VALLEY WEATHER STATION AT

THE FURNACE CREEK VISITOR CENTER. THIS SET A NEW 24 HOUR

PRECIPITATION RECORD FOR THIS PERIOD. THE PREVIOUS RECORD WAS 0.20

INCH IN 1912.

THE 0.55 INCH MEASURED ALSO TIES THE PREVIOUS 24 HOUR PRECIPITATION

RECORD FOR DEATH VALLEY FIRST SET FROM OCTOBER 16-17, 1934 AND THEN

TIED ON OCTOBER 3-4, 1972.

THIS ALSO TIES OCTOBER 1934 FOR THE 4TH WETTEST OCTOBER ON RECORD AT

DEATH VALLEY. THE NORMAL PRECIPITATION FOR OCTOBER IS 0.07 INCH.

THE ABOVE INFORMATION IS PRELIMINARY AND SUBJECT TO A FINAL REVIEW.

FOR FINAL CERTIFIED DATA PLEASE CONTACT THE OFFICE OF NOAA'S

NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (NCEI) LOCATED IN

ASHEVILLE, NORTH CAROLINA. 

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The southwestward drift over time (that very few models were able to recognize, by the way) and then eventual northeastward movement also helped. A weird looking wind field map for sure. 

John,

 

Great to see you posting here. I hope this time you are back for good. You were one hell of a moderator and one of the most knowledgeable posters on the site, degreed mets included. 

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Very impressive, but I think it's interesting that Igor '10 (the last 135 kt storm) generated over 40 units of ACE, compared to 25 as-yet for Joaquin. Even large, powerful, and slow-moving hurricanes close to the continent can't generate ACE like cookie-cutter Cape Verde systems.

 

I think IKE is often a better yardstick than ACE, but it's not nearly as widely calculated and reported.

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Good to see you posting John. It's been a record breaking pattern on several fronts. 1000 year rainfall over South Carolina

and record rains in Death Valley.

 

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE LAS VEGAS, NV

514 PM PDT MON OCT 5 2015

...RECORD RAINFALL FOR A 24 HOUR PERIOD FOR OCTOBER AT DEATH

VALLEY...

A TOTAL OF 0.55 INCH OF PRECIPITATION FELL FROM 8 AM ON OCTOBER 4TH

TO 8 AM OCTOBER 5TH AT THE OFFICIAL DEATH VALLEY WEATHER STATION AT

THE FURNACE CREEK VISITOR CENTER. THIS SET A NEW 24 HOUR

PRECIPITATION RECORD FOR THIS PERIOD. THE PREVIOUS RECORD WAS 0.20

INCH IN 1912.

THE 0.55 INCH MEASURED ALSO TIES THE PREVIOUS 24 HOUR PRECIPITATION

RECORD FOR DEATH VALLEY FIRST SET FROM OCTOBER 16-17, 1934 AND THEN

TIED ON OCTOBER 3-4, 1972.

THIS ALSO TIES OCTOBER 1934 FOR THE 4TH WETTEST OCTOBER ON RECORD AT

DEATH VALLEY. THE NORMAL PRECIPITATION FOR OCTOBER IS 0.07 INCH.

THE ABOVE INFORMATION IS PRELIMINARY AND SUBJECT TO A FINAL REVIEW.

FOR FINAL CERTIFIED DATA PLEASE CONTACT THE OFFICE OF NOAA'S

NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (NCEI) LOCATED IN

ASHEVILLE, NORTH CAROLINA. 

Cut off lows are capable of producing some insane rainfall totals by themselves. Couple that with a tropical moisture feed from an offshore hurricane and you have a recipe for prolific rainfall.

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Very impressive, but I think it's interesting that Igor '10 (the last 135 kt storm) generated over 40 units of ACE, compared to 25 as-yet for Joaquin. Even large, powerful, and slow-moving hurricanes close to the continent can't generate ACE like cookie-cutter Cape Verde systems.

 

I think IKE is often a better yardstick than ACE, but it's not nearly as widely calculated and reported.

 

Yes, IKE is a great measuring tool for overall impacts.

 

Cut off lows are capable of producing some insane rainfall totals by themselves. Couple that with a tropical moisture feed from an offshore hurricane and you have a recipe for prolific rainfall.

 

Historic events can occur when a deep tropical moisture feed/hurricane interacts with a closed low under a strong block

 

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