Alert archive / South Carolina / River Flood Warnings in 2017

River Flood Warning 20, NWS Wilmington, NC

September 1, 2017Horry County, South Carolina

NWS Wilmington, NC issued this river flood warning at Sep 1, 2017, 9:45 AM EDT for Horry County, South Carolina. It took effect at Sep 1, 2017, 2:00 PM EDT. It was in force for 6 days.

The area

The outline as issued.

The facts

Issued
Sep 1, 2017, 9:45 AM EDT (13:45 UTC)
In effect from
Sep 1, 2017, 2:00 PM EDT
Expired
Sep 7, 2017, 10:27 AM EDT
In force
6 days
Issued by
NWS Wilmington, NC
Area
Storm-based polygon
Flood severity
Minor

County Horry County, SC

The radar

The Wilmington radar (KLTX), 55 km from the middle of the area, began a volume at 13:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Waccamaw River near Conway (CNWS1). The gauge peaked at 11.44 ft at Sep 3, 2017, 12:00 PM EDT.

actionminormoderate91011121309/0109/0209/0309/0409/0509/0609/0709/08
Action stage
10 ft
Minor stage
11 ft
Moderate stage
12 ft
Major stage
14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02110704, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

638 
WGUS42 KILM 011345
FLWILM
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Wilmington NC
945 AM EDT Fri Sep 1 2017

...The National Weather Service in Wilmington NC has issued a Flood Warning for 
the following rivers in South Carolina...

  Waccamaw At Conway affecting Horry County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-020545-
/O.NEW.KILM.FL.W.0020.170901T1800Z-000000T0000Z/
/CNWS1.1.ER.170901T1800Z.170902T0600Z.000000T0000Z.NO/
945 AM EDT Fri Sep 1 2017

The National Weather Service in Wilmington NC has issued a 

* Flood Warning for 
  The Waccamaw At Conway.
* from this afternoon until further notice.
* At  9:15 AM Friday the stage was 10.95 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this afternoon and continue to rise to 
  near 11.1 feet by tomorrow evening.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

7
12 follow-up statements
372 
WGUS82 KILM 020136
FLSILM
Flood Statement
National Weather Service Wilmington NC
936 PM EDT Fri Sep 1 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-021736-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170905T0000Z/
/CNWS1.1.ER.170901T2115Z.170903T0000Z.170904T1800Z.NO/
936 PM EDT Fri Sep 1 2017

...Flood Warning now in effect until Monday evening...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Monday evening.
* At  9:15 PM Friday the stage was 11.04 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.1 feet by tomorrow 
  evening. The river will fall below flood stage early Monday afternoon.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$
438 
WGUS82 KILM 021404
FLSILM
Flood Statement
National Weather Service Wilmington NC
1004 AM EDT Sat Sep 2 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-030604-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170905T1200Z/
/CNWS1.1.ER.170901T2115Z.170902T1800Z.170905T0600Z.NO/
1004 AM EDT Sat Sep 2 2017

...Flood Warning now in effect until Tuesday morning...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Tuesday morning.
* At  9:15 AM Saturday the stage was 11.18 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.2 feet by just after 
  midnight tonight. The river will fall below flood stage early Tuesday morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43
886 
WGUS82 KILM 030039
FLSILM
Flood Statement
National Weather Service Wilmington NC
839 PM EDT Sat Sep 2 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-031639-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170905T1800Z/
/CNWS1.1.ER.170901T2115Z.170903T0600Z.170905T1200Z.NO/
839 PM EDT Sat Sep 2 2017

...Flood Warning now in effect until Tuesday afternoon...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Tuesday afternoon.
* At  8:15 PM Saturday the stage was 11.29 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.4 feet by early tomorrow 
  afternoon. The river will fall below flood stage Tuesday morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

33
028 
WGUS82 KILM 031455
FLSILM
Flood Statement
National Weather Service Wilmington NC
1055 AM EDT Sun Sep 3 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-040655-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170907T0600Z/
/CNWS1.1.ER.170901T2115Z.170903T1345Z.170907T0000Z.NO/
1055 AM EDT Sun Sep 3 2017

...Flood Warning now in effect until late Wednesday night...
The Flood Warning continues for
  The Waccamaw At Conway.
* until late Wednesday night.
* At 10:15 AM Sunday the stage was 11.37 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.4 feet by just after 
  midnight tonight. The river will fall below flood stage Wednesday evening.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43
026 
WGUS82 KILM 040100
FLSILM
Flood Statement
National Weather Service Wilmington NC
900 PM EDT Sun Sep 3 2017

...The Flood Warning has been extended for the following river...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-041700-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170906T1800Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170906T1200Z.NO/
900 PM EDT Sun Sep 3 2017

...Flood Warning now in effect until Wednesday afternoon...
The Flood Warning continues for
  The Waccamaw At Conway
* until Wednesday afternoon.
* At 8:15 PM Sunday, the stage was 11.40 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring, and Minor flooding is forecast.
* The river will continue to fall, falling below flood stage by Wednesday morning.
* At 11.0 feet...Water will cause minor flooding of yards and a few roads in the
  Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront South communities.
  Overflow of vast uninhabited swamp and natural boat landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

47
142 
WGUS82 KILM 041326
FLSILM
Flood Statement
National Weather Service Wilmington NC
926 AM EDT Mon Sep 4 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-050526-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170907T0000Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170906T1800Z.NO/
926 AM EDT Mon Sep 4 2017

...Flood Warning now in effect until Wednesday evening...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Wednesday evening.
* At  9:15 AM Monday the stage was 11.34 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall and get below flood stage by early 
  Wednesday afternoon.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43
978 
WGUS82 KILM 050054
FLSILM
Flood Statement
National Weather Service Wilmington NC
854 PM EDT Mon Sep 4 2017

...The Flood Warning continues for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-051654-
/O.CON.KILM.FL.W.0020.000000T0000Z-170907T0000Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170906T1800Z.NO/
854 PM EDT Mon Sep 4 2017

The Flood Warning continues for
  The Waccamaw At Conway.
* until Wednesday evening.
* At  8:15 PM Monday the stage was 11.24 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall and get below flood stage by early 
  Wednesday afternoon.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$
514 
WGUS82 KILM 051525
FLSILM
Flood Statement
National Weather Service Wilmington NC
1125 AM EDT Tue Sep 5 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-060725-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170906T1800Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170906T1200Z.NO/
1125 AM EDT Tue Sep 5 2017

...Flood Warning now in effect until Wednesday afternoon...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Wednesday afternoon.
* At 10:15 AM Tuesday the stage was 11.10 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall and get below flood stage by 
  tomorrow morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43
611 
WGUS82 KILM 060137
FLSILM
Flood Statement
National Weather Service Wilmington NC
937 PM EDT Tue Sep 5 2017

...The Flood Warning continues for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the "Rivers and Lakes" link.

&&

SCC051-061737-
/O.CON.KILM.FL.W.0020.000000T0000Z-170906T1800Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170906T1200Z.NO/
937 PM EDT Tue Sep 5 2017

The Flood Warning continues for
  The Waccamaw At Conway.
* until Wednesday afternoon.
* At  9:15 PM Tuesday the stage was 11.08 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.1 feet by just after midnight tonight. The river will fall below flood stage tomorrow morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront South communities. Overflow of vast uninhabited swamp and natural boat landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$
749 
WGUS82 KILM 061536
FLSILM
Flood Statement
National Weather Service Wilmington NC
1136 AM EDT Wed Sep 6 2017

...The Flood Warning has been extended for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-070736-
/O.EXT.KILM.FL.W.0020.000000T0000Z-170908T1200Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170908T0600Z.NO/
1136 AM EDT Wed Sep 6 2017

...Flood Warning now in effect until Friday morning...
The Flood Warning continues for
  The Waccamaw At Conway.
* until Friday morning.
* At 11:15 AM Wednesday the stage was 11.02 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 11.1 feet by just after 
  midnight tonight. The river will fall below flood stage early Friday morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43
903 
WGUS82 KILM 070130
FLSILM
Flood Statement
National Weather Service Wilmington NC
930 PM EDT Wed Sep 6 2017

...The Flood Warning continues for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-071730-
/O.CON.KILM.FL.W.0020.000000T0000Z-170908T1200Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.170908T0600Z.NO/
930 PM EDT Wed Sep 6 2017

The Flood Warning continues for
  The Waccamaw At Conway
* until Friday morning.
* At 9:15 PM Wednesday the stage was 11.0 feet.
* Flood stage is 11.0 feet.
* The river is expected to remain near flood stage.
* At 11.0 feet...Water will cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

47
353 
WGUS82 KILM 071427
FLSILM
Flood Statement
National Weather Service Wilmington NC
1027 AM EDT Thu Sep 7 2017

...The Flood Warning is cancelled for the following rivers...

  Waccamaw At Conway affecting Horry County SC

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with interests along the river should take the necessary precautions to 
protect life and property from the flood waters.

Additional information is available on our website at weather.gov/ilm under the 
"Rivers and Lakes" link.

&&

SCC051-071457-
/O.CAN.KILM.FL.W.0020.000000T0000Z-170908T1200Z/
/CNWS1.1.ER.170901T2115Z.170903T2315Z.000000T0000Z.NO/
1027 AM EDT Thu Sep 7 2017

The Flood Warning is cancelled for
  The Waccamaw At Conway.
* At 10:15 AM Thursday the stage was 10.91 feet.
* Flood stage is 11.0 feet.
* Forecast... The river will fall to 10.9 feet by tomorrow morning.
* Impact...At 11.0 feet...Water will begin to cause minor flooding of yards and a
  few roads in the Lees Landing, Pitch Landing, Savannah Bluff, and Riverfront 
  South communities. Overflow of vast uninhabited swamp and natural boat 
  landings will occur.

&&

LAT...LON 3391 7892 3382 7886 3379 7900 3371 7900
          3371 7911 3385 7908         

$$

43

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, NC wrote its last area forecast discussion before this river flood warning went out at Sep 1, 7:08 AM EDT, 2 hours 37 minutes earlier.

Area forecast discussion, Sep 1, 7:08 AM EDT, 2 hours 37 minutes before
Area Forecast Discussion
National Weather Service Wilmington NC
708 AM EDT Fri Sep 1 2017

.SYNOPSIS...
Former Tropical Storm Harvey will move north across Tennessee
and Kentucky today. A weak front will stall across southern
North Carolina later today, focusing the potential for strong
to severe thunderstorms, including isolated tornadoes. The
front will retreat northward tonight, however a warm and humid
airmass should allow showers and thunderstorms to continue
through Saturday. High pressure will bring dry weather to the
area Sunday through Tuesday. Another cold front may bring more
thunderstorms by next Wednesday and Thursday.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 300 AM Friday...The remants of Harvey will move north toward
the Ohio Valley today into tonight. Increasing SW flow behind a warm
front stretching out from this remnant low will come against NE flow
as high pressure builds south pushing a cold front into NC through
today. Some low clouds and fog were fairly widespread in the moist
air and weak isentropic lift ahead of the warm front, but later
today this boundary will converge with cold front coming down from
the north to provide a focal point for strong convective development
and the possibility of damaging winds and isolated tornadoes. NAM is
showing a low developing just west of our local forecast area along
this boundary with a line of convection extending south from the low
reaching into the I-95 corridor later this afternoon and then
pushing east but lifting off to the northeast. SPC has outlined this
area with a slight risk of severe weather which extends east to
cover most of our forecast area with slight or marginal risk for
severe weather with a threat of tornadoes and damaging winds.

With heating of the day and plenty of warm moist air moving
north behind warm front expect CAPE values to reach up near 1000
to 1500 J/kg especially if we can get some breaks in the
clouds. Temps should reach into the mid 80s with dewpoint temps
into the 70s in warm sector over our area. This will combine
with a decent LLJ jet up to 35 kts to produce increasing shear
as sfc winds back to the E-SE as these boundaries meet later
this afternoon. Expect the best chc of severe weather to come
basically late this afternoon into early evening. Will have to
monitor closely exactly where this boundary will move to
decipher best threat of severe weather. For now it looks like
the best threat of tornadoes will be inland near the I-95
corridor, with a greater focus or potential for damaging wind
gusts over eastern SC where weaker shear will exist but more
instability due to greater heating and moisture. Expect these
storms to also produce torrential rain with potential of
localized QPF totals over an inch or two.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
As of 300 AM Friday...An upper level trough moving across the
Great Lakes on Saturday will pick up the remnant circulation of
former Tropical Storm Harvey and lift it from Kentucky across
Ohio on Saturday, and then through New England Sunday. At the
surface the very moist southerly flow from the Gulf of Mexico
should yield more showers and t-storms across the eastern
Carolinas on Saturday.

With Friday's warm front located well north of the area by
Saturday, our wind shear profiles won't be nearly as dangerous
looking -- although 0-6 km bulk shear values around 30 knots
should still support some convective organization into short
lines and multicell clusters. Highs in the mid 80s and dewpoints
still in the 70s should generate surface-based CAPE values of
1000-2000 J/kg.

As winds veer more southwesterly during the afternoon Saturday,
significantly drier mid-level air should begin to advect in
from the west. This should reach the Pee Dee counties first, and
showers and storms should become less numerous as precipitable
water values fall below 1.5 inches by mid-afternoon there. It
will take another 3-6 hours for this drying trend to reach the
coast. Forecast Pops ranging from 50-70 percent Saturday
(highest at the coast) decrease to 20-40 percent Saturday
evening, then below 20 percent after midnight.

Weak low pressure developing along the warm front over the Mid-
Atlantic region Saturday night should push a weak cold front
southward into the area late. Winds should veer to the west just
before daybreak Sunday. This should produce a spectacular
weather day on Sunday: mostly sunny skies and light offshore
winds should yield highs in the mid to upper 80s. A modest
seabreeze will develop during the afternoon at the beaches, but
the atmosphere should be dry enough aloft to inhibit any shower
development. Dry weather will continue Sunday night, with
radiational cooling expected to be good enough to allow lows to
reach the 60s across all but the immediate coast.

&&

.LONG TERM /MONDAY THROUGH THURSDAY/...
As of 300 PM Thursday...Amazingly, models are quite similar with
the mid-level pattern thru Tue. The exception is the NAM for Sun
when it closes off a mid-level low over GA for much of the day
which keeps the threat of pcpn across the FA. However, stayed
with a dry bias and discounted this closed low aloft. The
negatively tilted upper trof will swing north of the FA during
the day with any lingering pcpn occurring in the morning.

For Mon thru early Tue, have gone with no POPs given the FA
will be under a rather low amplitude trof with the main belt of
the upper westerlies north of the FA. As a result, a weak-modest
sfc high will migrate across the FA.

For late Tue thru Thu, look for increasing POPs with POPs
peaking during Wed into Wed night. Initially, return flow from
the Atlantic and Gulf of Mexico in the low and mid levels
increases the moisture and PW count across the FA, thus giving
rise to low chance for convection. For Wed into Thu, an
amplifying upper trof will expand to the east coast. It will
drive a cold front southeastward, reaching the FA early Thu.
This will further increase the moisture from both Atl and GoM
sources with PWs above 2 inches. The mid-level vorticies
rotating thru this upper trof will further enhance convection
across the FA. For now, will go with 40 to possibly 50 POPs.

Have used a consensus of available MOS Guidance for temps thru
the period.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
As of 12Z Thursday...Patchy morning low clouds and fog should
burn off quickly at the ILM airport. This should yield a few
hours of VFR/MVFR flight category conditions through the
remainder of the morning hours across the region. However a
weak backdoor front sliding southward through North Carolina
will get quite close to the area this afternoon. The front may
move across the LBT airport where winds could back around to the
east. Elsewhere a light southerly wind is expected today.

A good potential exists for strong to severe thunderstorms to
develop this afternoon as a series of upper level disturbances
pass overhead. The proximity of the front will create a broad
zone of vertical wind shear, enhancing the storms' potential to
become severe. The first wave of showers and thunderstorms
could form as early as 18Z along the seabreeze front, affecting
MYR, CRE, and ILM between 18-21Z. The second and potentially
stronger wave of thunderstorms is expected to develop in the
21-23Z timeframe along a line from FLO to LBT, with the back
edge of this activity clearing those airports between 01-03Z.

After this time the coverage of showers and storms should
decrease, although it's not possible to rule out one or two
isolated storms lingering overnight.

Extended Outlook...Showers and thunderstorms Saturday will have
the potential to produce brief IFR conditions in heavy rainfall.
Otherwise VFR conditions are expected..

&&

.MARINE...
NEAR TERM /THROUGH TONIGHT/...
As of 300 AM Friday...Winds will back from S-SW to SE and will
increase as warm front lifts north extending out from remants of
Harvey and cold front moves down into NC from the north. Expect
winds to increase up to 10 to 15 kts with seas showing a slight rise
up to 3 ft. Winds and seas will be locally higher in possible strong
to severe thunderstorms into late this evening. Winds will veer back
around to the S to SW after midnight as warm front lifts farther
north.

SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
As of 300 AM Friday...The remnant low from former Tropical Storm
Harvey will spin down Saturday as it moves from Kentucky into
Ohio. Our winds should be southerly 10-12 knots on Saturday
between Harvey's low and a 1026 mb high moving off the New
England coast. A new low pressure area developing along a front
across the Mid- Atlantic region Saturday night should drive a
weak cold front through the Carolinas before sunrise Sunday
morning. This will turn winds more westerly, but with no
increase in speed. The drier air behind this feature should
finally end the rather widespread shower and t-storm activity
we will have been enduring for a couple of days.

LONG TERM /MONDAY THROUGH TUESDAY/...
As of 300 PM Thursday...For Mon thru Tue, rather benign winds
and sea conditions developing. This a result of a weak sfc pg
developing Sun and persisting through Tue as high pressure
settles across the local waters. Wind directions will mainly be
from the south to southwest through this period. Wavewatch3
does show small forerunner Irma swell reaching the local waters
during Tue with 15 second periods dominating. For now, will
continue with 2 to 3 ft seas.

&&

.ILM WATCHES/WARNINGS/ADVISORIES...
SC...None.
NC...None.
MARINE...None.

&&

SYNOPSIS...TRA
NEAR TERM...RGZ
SHORT TERM...TRA
LONG TERM...DCH
AVIATION...TRA
MARINE...
Hazardous weather outlook, Sep 1, 4:29 AM EDT, 5 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Wilmington NC
429 AM EDT Fri Sep 1 2017

NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-053>056-020830-
Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-
Inland New Hanover-Coastal New Hanover-Inland Brunswick-
Coastal Brunswick-Marlboro-Darlington-Dillon-Florence-Marion-
Williamsburg-Inland Horry-Coastal Horry-Inland Georgetown-
Coastal Georgetown-
429 AM EDT Fri Sep 1 2017

This Hazardous Weather Outlook is for southeast North Carolina and
northeast South Carolina.

.DAY ONE...Today and Tonight.

There is an increasing risk for severe weather late this afternoon
into this evening which includes a risk for isolated tornadoes and
damaging wind.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

AMZ250-252-254-256-020830-
Coastal waters from Surf City to Cape Fear NC out 20 nm-
Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm-
Coastal waters from Little River Inlet to Murrells Inlet SC out
20 nm-
Coastal waters from Murrells Inlet to South Santee River SC out
20 nm-
429 AM EDT Fri Sep 1 2017

This Hazardous Weather Outlook is for The adjacent Coastal Waters.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Sep 1, 9:22 AM EDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
922 AM EDT FRI SEP 01 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0748 PM     TSTM WND DMG     BRITTONS NECK           33.91N  79.34W
08/31/2017                   MARION             SC   EMERGENCY MNGR

            TREE DOWN ON HIGHWAY 378 IN THE BRITTONS NECK AREA.
            TIME ESTIMATED BY RADAR.

&&

EVENT NUMBER ILM1700175

SRP

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 31, 8:09 PM EDTTornado WarningILMHorry36 min
Aug 31, 8:27 PM EDTSpecial Marine WarningILM93 min
Aug 31, 8:44 PM EDTSpecial Weather StatementILMHorry61 min
Sep 1, 2:04 PM EDTSpecial Weather StatementILMDillon, Marion56 min
Sep 1, 4:23 PM EDTSevere Thunderstorm WarningILMMarlboro37 min
Sep 1, 6:45 PM EDTSpecial Weather StatementILMMarlboro30 min

Nearby

River Flood Warnings in South Carolina, 2017Every river flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.