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Hurricane Debby

Believe it or not, the 0Z GFS is the 12th in a row that is coming back W into GA on THU AM! Also, after yesterday’s 6Z GEFS was the first run in days to have more members finally getting away from that kind of thing, the last 3 runs have come back S again.
The GFS suite actually has had a little bit of company since 12Z today: the 12Z JMA and now 0Z JMA are also stalling and then coming W into lower SC. No JMA had done that in the prior days.
 
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
1245 AM EDT Tue Aug 6 2024

The National Weather Service in Charleston has issued a

* Tornado Warning for portions of...
Charleston County in southeastern South Carolina...
Berkeley County in southeastern South Carolina...

* Until 115 AM EDT.

* At 1245 AM EDT, a severe thunderstorm capable of producing a
tornado was located over Don Holt Bridge, moving northwest at 30
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.

* Locations impacted include:
North Charleston, Goose Creek, Hanahan, Naval Weapons Station
Charleston, Ladson, Daniel Island, Crowfield Plantation, Don Holt
Bridge, and College Park.

This warning includes the following interstates:
I-26 between mile markers 203 and 213.
I-526 between mile markers 19 and 26.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Tornadoes from tropical storms or hurricanes can form and move very
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a tornado
it could be too late. Take action now to immediately protect
yourself.
 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
125 AM EDT TUE AUG 6 2024

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
BRYAN COUNTY IN SOUTHEASTERN GEORGIA...
BULLOCH COUNTY IN SOUTHEASTERN GEORGIA...
CHATHAM COUNTY IN SOUTHEASTERN GEORGIA...
EFFINGHAM COUNTY IN SOUTHEASTERN GEORGIA...
EVANS COUNTY IN SOUTHEASTERN GEORGIA...
LIBERTY COUNTY IN SOUTHEASTERN GEORGIA...
JASPER COUNTY IN SOUTHEASTERN SOUTH CAROLINA...

* UNTIL 930 AM EDT TUESDAY.

* AT 125 AM EDT, DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. BETWEEN 5 AND 10 INCHES OF RAIN HAVE FALLEN. THE
EXPECTED RAINFALL RATE IS 1 TO 2.5 INCHES IN 1 HOUR. FLASH
FLOODING IS ONGOING, WITH THE SIGNIFICANT FLASH FLOODING THREAT
CONTINUING FOR SEVERAL MORE DAYS.

HAZARD...FLASH FLOODING CAUSED BY HEAVY RAIN.

SOURCE...PUBLIC REPORTED.

IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN
AREAS, HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS
OTHER POOR DRAINAGE AND LOW-LYING AREAS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
HINESVILLE, POOLER, BLUFFTON, RICHMOND HILL, TYBEE ISLAND,
CLAXTON, PEMBROKE, I-16/I-95 INTERCHANGE, GODLEY STATION AND
SAVANNAH INTERNATIONAL AIRPORT.
 
0Z Euro: again further SW with a LF barely N of CHS. This is the first run since the 12Z 8/3 run that didn’t hit Georgetown or further north.

The 0Z UKMET seems to be running very late.
 
2:00 AM EDT Tue Aug 6
Location: 31.2°N 81.9°W
Moving: NE at 7 mph
Min pressure: 998 mb
Max sustained: 45 mph
 
usatlant.fc.gif
 
After looking at 00z guidance, GFS might have been way too trigger happy trapping the system completely all the way back, but the models are becoming quite insistent on this thing coming back inland and meandering.

I don't know what the rainfall will be like in my back yard, but 2-4 inches might be on the low end now. :|

Even the Icon model is nailing mby under heavier banding now. Something it has not done in days.
 
Bolding of the last line is mine.

FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
212 AM EDT TUE AUG 6 2024

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
SCREVEN COUNTY IN SOUTHEASTERN GEORGIA...
ALLENDALE COUNTY IN SOUTHEASTERN SOUTH CAROLINA...
BEAUFORT COUNTY IN SOUTHEASTERN SOUTH CAROLINA...
COLLETON COUNTY IN SOUTHEASTERN SOUTH CAROLINA...
HAMPTON COUNTY IN SOUTHEASTERN SOUTH CAROLINA...
JASPER COUNTY IN SOUTHEASTERN SOUTH CAROLINA...

* UNTIL 1000 AM EDT TUESDAY.

* AT 212 AM EDT, DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. BETWEEN 4 AND 10 INCHES OF RAIN HAVE FALLEN. FLASH
FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY. THE THREAT FOR
HEAVY RAINFALL WILL CONTINUE FOR THE NEXT SEVERAL DAYS.

HAZARD...FLASH FLOODING CAUSED BY HEAVY RAIN.

SOURCE...RADAR INDICATED.

IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN
AREAS, HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS
OTHER POOR DRAINAGE AND LOW-LYING AREAS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
SYLVANIA, HAMPTON, YEMASSEE, LAKE WARREN STATE PARK, COLLETON,
VARNVILLE, ESTILL, FAIRFAX, BRUNSON AND GIFFORD.

THIS INCLUDES I-95 IN SOUTH CAROLINA BETWEEN MILE MARKERS 32 AND 49.
 
0Z 8/6 UKMET is finally out: LF Georgetown, then goes to Charlotte but then turns NE and strengthen back down to 990 mb and ends in N Maine.

I’ve continued to get on and off heavy bands of rainfall the last few hours along with a few gusts likely as high as 40-45, about the strongest here so far for Debby. I believe I’ve now exceeded 8” for this storm with that during just the last 18 hours though street flooding isn’t quite as bad as before due to an earlier lull in the heavy rain. I bet the drainage canals are full!
 
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