Hurricane Florence made landfall on the far southeast North Carolina coast on September 14th and tracked very slowly across South Carolina before slowly re-curving across far western North Carolina and southwest Virginia as a Tropical Depression and on into the Ohio Valley. Multiple incidents of strong winds, flash flooding and flooding occurred with Florence. The first rainfall of any significance was during the late afternoon and evening of the 14th as several outer bands of Florence affected mainly Rockingham and Caswell counties with 24-hour totals ending 12z (700 AM) on the 15th of 1 to 2 inches, with much lower amounts to the northwest.  The next 24 hours (ending 12z on the 16th) saw heavier rains still mainly over the NC Piedmont counties with about 1 to 3 inches falling. Much heavier rainfall began to spread further northward during the afternoon and evening of the 16th prompting numerous Flash Flood Warnings and causing significant flood impacts.  The highest observed rain amounts in North Carolina within the HSA were over parts of Alleghany County with up to 8 inches in 24 hours (ending at 700 AM on the 17th) and over 10 inches storm total. The highest gage report was from Glade Creek VFD DCP (GLCN7) with 10.99 inches in the 72-hour period ending 700 AM on the 18th.

Heavy Rain in ALLEGHANY, NORTH CAROLINA
From 16-SEP-18 06:00:00 to 17-SEP-18 06:00:00 (EST-5)
Location: SPARTA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Sparta (SPRN7) measured 7.64 inches for the 24-hours ending 700 AM local time on September 17th. This was the highest daily rainfall for any date on record at this station. The old record was 7.10 inches August 31, 1964. This value falls into the 90 percent confidence interval (7.02-8.57 inches) for a 50-year average recurrence interval (.02 annual exceedance probability) per NOAA Atlas 2. Continuous precipitation data began in 1942 and ended in mid-2010 but resumed in mid-2018 at this station.

Heavy Rain in WATAUGA, NORTH CAROLINA
From 16-SEP-18 06:00:00 to 17-SEP-18 06:00:00 (EST-5)
Location: BOONE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Boone 1 SE (BOON7) measured 5.00 inches for the 24-hours ending 700 AM local time on September 17th. This was the 2nd highest daily rainfall for any September day at this station. The existing record is 7.64 inches September 8, 2004. Continuous precipitation data began in 1980 at this location.

Flash Flood in STOKES, NORTH CAROLINA
From 16-SEP-18 23:20:00 to 17-SEP-18 05:20:00 (EST-5)
Location: WALNUT COVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Town Fork Creek was reported out of its banks and flooding portions of Walnut Cove. Flat Shoals Creek was also flooding parts of Sunset Park. The Dan River was out its banks and flooded Dan River Shores Road.

Flash Flood in WILKES, NORTH CAROLINA
From 16-SEP-18 20:07:00 to 17-SEP-18 02:07:00 (EST-5)
Location: MOXLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several low water bridges along the Roaring River and East Prong of the Roaring River were flooded and closed. Several culverts were blocked and caused flooding in North Wilkesboro. A small pond overtopped in Moravian Falls and caused flooding on Falls Road.
In the Broadway community a man clearing debris from the mouth of a culvert was sucked into the culvert up to his waste by the strong current of the rain-swollen stream. Reports said the man freed himself by the time Broadway firefighters arrived. The man received scratches but declined treatment at the scene.

Flood in ALLEGHANY, NORTH CAROLINA
From 17-SEP-18 05:24:00 to 17-SEP-18 11:24:00 (EST-5)
Location: PINEY CREEK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported water of 2 to 3 foot depth over Garvey Bridge Road near Rivercamp USA campground in Piney Creek. Flooding may have been from the South Fork of the New River which was above flood stage at the Jefferson gage upstream.

Flood in STOKES, NORTH CAROLINA
From 17-SEP-18 01:00:00 to 17-SEP-18 07:00:00 (EST-5)
Location: DANBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Flooding was observed along portions of the Dan River in Stokes County including at  Moratock Park in Danbury. The Dan River downstream at the Pine Hall gage (PNHN7) crested at 24.91 feet  (15,700 cfs), the highest stage since January, 2010 (25.77 ft.) and the 2nd highest in the short period of record (since 2008) at this gage. Small stream flooding was also reported including Flat Shoal Creek near Sunset Park campground.

Heavy Rain in ASHE, NORTH CAROLINA
From 16-SEP-18 06:00:00 to 17-SEP-18 06:00:00 (EST-5)
Location: WAGONER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Transou (LSPN7) measured 5.69 inches for the 24-hours ending 700 AM local time on September 17th. This was the 4th highest daily rainfall for any day in September and the 11th highest for any date. Continuous rainfall records extend back to 1946 at this station.

Flash Flood in WATAUGA, NORTH CAROLINA
From 16-SEP-18 18:45:00 to 17-SEP-18 06:45:00 (EST-5)
Location: SUGAR GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several roads were flooded in the county including Bamboo Road near the Boone Airport, a road near the South Fork of the New River and several low water bridges along the Watauga River. The Watauga River gage at Sugar Grove (SGWN7) crested at 8.41 feet, over the Minor flood stage of 6 feet.

Flash Flood in CASWELL, NORTH CAROLINA
From 17-SEP-18 08:30:00 to 17-SEP-18 12:30:00 (EST-5)
Location: GATEWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A trailing band of heavy rain moved across the piedmont during the early to mid-morning hours of the 17th and produced a broad swath of 2 to 4 inches of rain in several hours across central Caswell County. A CoCoRaHS site 2.4 SW of Yanceyville (NC-CS-5) had a storm total of 4.97 inches ending at 700 AM local time on the 18th, much of which fell in during this several-hour period. Dispatch and emergency management reported numerous road closures across the county including portions of Walters Mill Road, Route 62, Route 119, Route 158 East, Jack Pointer Road, Race Track Road and Doll Branch Road. The spatial extent and duration of flooding was partially delineated by unit streamflow from the CREST hydrologic model.

Flash Flood in YADKIN, NORTH CAROLINA
From 16-SEP-18 18:44:00 to 17-SEP-18 00:44:00 (EST-5)
Location: WINDSORS XRDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Significant flash flooding occurred across Yadkin County with at least a half-dozen roads closed as of early Monday morning, the 17th.  These included Dinkins Bottom Road, Butner Mill Road, South Jonesville Boulevard, Richmond Hill Road at the Rockford bridge, Aquila Creek Road and Old 421 East in the Forbush area remained closed to traffic due to flooding on the roads.

Flash Flood in ROCKINGHAM, NORTH CAROLINA
From 16-SEP-18 19:30:00 to 17-SEP-18 01:30:00 (EST-5)
Location: ELLISBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous roads were closed across the county with the first reports received around 830 PM local time. Many roads were still closed the next morning according to newspaper accounts. Jacobs Creek near Madison and Troublesome Creek near Reidsville were both reported out of their banks and flooding nearby areas.

Debris Flow in ASHE, NORTH CAROLINA
From 18-SEP-18 14:00:00 to 18-SEP-18 15:00:00 (EST-5)
Location: WARRENSVILLE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

A landslide caused by the heavy rains from Florence knocked down a power pole and brought the lines down on a business in Warrensville, causing a large fire. Photos showed the two-story structure enveloped in flames.

Flood in ASHE, NORTH CAROLINA
From 16-SEP-18 23:00:00 to 17-SEP-18 16:45:00 (EST-5)
Location: WAGONER
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The South Fork of the New River near Jefferson (JFRN7) crested at 9.43 feet (Minor flood stage is 8 ft.) in the early morning of the 17th. Several roads are affected at this stage. This was the highest stage since January 31, 2013 at this gage. The discharge of 9460 cfs was approximately a 5 to 10-year event (0.2 to 0.1 annual chance) per USGS. Several roads close to the New River were flooded and damaged according to NC DOT officials.

Strong Wind in WATAUGA, NORTH CAROLINA
From 16-SEP-18 00:55:00 to 16-SEP-18 21:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 3.00K
Reported by: Broadcast Media

Gusty winds brought down one tree on Route 421 near the Tennessee state line and another near the intersection of Bamboo and Deerfield Roads. Both instances caused temporary road closures. Other trees were blown down around Boone.

Strong Wind in ALLEGHANY, NORTH CAROLINA
From 15-SEP-18 23:50:00 to 16-SEP-18 20:00:00 (EST-5)
Magnitude: 43.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

A few trees were blown down due to strong winds. One fell on Route 18 near the intersection with the Blue Ridge Parkway. A second fell onto Napco Road in Sparta. A third was also reported down over Shawtown Road in Glade Valley.

Strong Wind in SURRY, NORTH CAROLINA
From 14-SEP-18 11:25:00 to 16-SEP-18 22:25:00 (EST-5)
Magnitude: 40.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Beginning as early as Friday the 14th, Emergency Services had already reported eight separate instances of trees or power lines brought down by strong winds. Winds would continue through Sunday when a rain soaked ground in Surry County would help to bring down many more trees.

Strong Wind in WILKES, NORTH CAROLINA
From 14-SEP-18 11:25:00 to 16-SEP-18 01:00:00 (EST-5)
Magnitude: 35.00 EG
Property damage: 50.00K
Reported by: 911 Call Center

Strong winds combined with saturated ground toppled numerous trees across the county. Wilkes County Communications fielded about 60 call regarding fallen trees beginning around noon on Sunday. By Sunday night, 1,300 customers within the county were without power.

Strong Wind in YADKIN, NORTH CAROLINA
From 16-SEP-18 11:00:00 to 16-SEP-18 21:00:00 (EST-5)
Magnitude: 35.00 EG
Property damage: 1.50K
Reported by: Public

Strong winds combined with saturated ground caused at least three trees to be blown down, mainly near Route 421 to the west of Yadkinville.

Strong Wind in STOKES, NORTH CAROLINA
From 14-SEP-18 11:25:00 to 16-SEP-18 21:00:00 (EST-5)
Magnitude: 35.00 EG
Property damage: 25.00K
Reported by: 911 Call Center

Strong winds and saturated ground combined to knock over at least 40-50 trees beginning on Friday through Sunday night.

Flash Flood in ALLEGHANY, NORTH CAROLINA
From 16-SEP-18 18:21:00 to 17-SEP-18 00:21:00 (EST-5)
Location: TWIN OAKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Evans Road near Ennice was reported under water and Glade Valley Road was reported to have been underwater where it crosses Brush Creek.

Heavy Rain in WILKES, NORTH CAROLINA
From 16-SEP-18 06:00:00 to 17-SEP-18 06:00:00 (EST-5)
Location: ELKIN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Elkin (EKNN7) measured 5.00 inches for the 24-hours ending 700 AM local time on September 17th. This was the 2nd highest daily rainfall for any day in September and the 6th highest for any date. Continuous records extend back to 1933 at this station.

Heavy Rain in ALLEGHANY, NORTH CAROLINA
From 16-SEP-18 08:00:00 to 17-SEP-18 08:00:00 (EST-5)
Location: GLADE VLY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Glade Valley 3.0 ENE CoCoRaHS (NC-AG-3) measured 8.09 inches for the 24 hours ending 0900 local time on the 17th. This value falls into the 90 percent confidence interval (7.28-8.91 inches) for a 100-year average recurrence interval (.01 annual exceedance probability) per NOAA Atlas 2. The observer had a 2-day storm total of 9.13 inches.

Heavy Rain in WATAUGA, NORTH CAROLINA
From 16-SEP-18 06:00:00 to 17-SEP-18 06:00:00 (EST-5)
Location: BOONE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Boone 4.5 SE CoCoRaHS (NC-WT-24) station measured 6.70 inches for the 24 hours ending 0700 local time on the 17th. This value falls into the confidence interval (5.82-6.97 inches) for a 10-year average recurrence interval (.10 annual exceedance probability) per NOAA Atlas 2.

Flood in ROCKINGHAM, NORTH CAROLINA
From 17-SEP-18 01:00:00 to 17-SEP-18 15:45:00 (EST-5)
Location: PRICE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Mayo River near Price, NC (PRIN7) in northwest Rockingham County rose above the flood stage of 8 feet and crested in the Moderate flood category at 11.20 feet (13,600 cfs) mid-morning of the 17th. This was the 6th highest stage on record at this gage with over 65 years of data. According to USGS analysis, the flood frequency for the event was between a 5- and 10-year (0.2 to 0.1 annual chance of occurrence). Parts of Mayo Beach Road near the river were flooded.

Flood in ROCKINGHAM, NORTH CAROLINA
From 17-SEP-18 04:00:00 to 18-SEP-18 11:30:00 (EST-5)
Location: MADISON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Dan River near Wentworth, NC (WENN7) rose above the flood stage of 19 feet and crested just below the Moderate flood category (25 feet) at 24.88 feet (28,900 cfs) mid-morning of the 17th. This was the 8th highest stage on record at this gage since records began in 1940 and the highest since 2003. According to USGS analysis, the frequency for the event was approximately a 10-year flood (0.1 annual chance of occurrence). Several roads were flooded and closed near the confluence of the Mayo and Dan rivers in the Madison area per local news reports.