Flash Flood Warning 41, NWS Raleigh, NC

535 
WGUS72 KRAH 220132
FFSRAH

Flash Flood Statement
National Weather Service Raleigh NC
932 PM EDT Mon Sep 21 2026

NCC065-083-127-220142-
/O.CAN.KRAH.FF.W.0041.000000T0000Z-260922T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Edgecombe NC-Halifax NC-Nash NC-
932 PM EDT Mon Sep 21 2026

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN EDGECOMBE,
CENTRAL HALIFAX AND NORTHEASTERN NASH COUNTIES...

The heavy rain has ended. Flash flooding is no longer expected to
pose a threat. However, a flood advisory remains in effect for the
warned area and light to moderate rain continues. Please continue to
heed remaining road closures and use caution where water may be
lingering on area roadways.

&&

LAT...LON 3617 7781 3620 7779 3631 7764 3632 7760
      3630 7754 3632 7744 3629 7741 3626 7741
      3624 7738 3619 7739 3619 7740 3611 7743
      3609 7745 3600 7764 3601 7776 3602 7776
      3603 7780 3608 7784 3613 7781

$$

10

Area Forecast Discussion
National Weather Service Raleigh NC
328 PM EDT Mon Sep 21 2026

.WHAT HAS CHANGED...

* Further decreased temperatures within the CAD regime, especially
  across the Piedmont, on Tuesday through Thursday.

&&

.KEY MESSAGES...
As of 325 PM Monday...

1) Potential for strong storms with heavy downpours today across
mainly the north.

2) Additional localized heavy rain possible areawide on Tuesday.

3) Cold air damming will bring much below normal temperatures during
mid to late week.

&&

.DISCUSSION...
As of 325 PM Monday...

KEY MESSAGE 1... Potential for strong storms with heavy downpours
today across mainly the north.

A cold front is currently analyzed over southern VA, with cool NE
flow and low stratus to its north. Ahead of the front, heating and
destabilization have occurred, with widespread temperatures in the
upper-80s to lower-90s across central NC and MLCAPE in the 1000-2000
J/kg range, highest over the NW Piedmont. Scattered cumulus has
begun to develop, with a few isolated showers already popping up
over parts of the northern and western Piedmont. The deeper
convection is located along a convergence axis over western VA/NC as
a shortwave approaches from western KY.

High-res models are in good agreement that convection will continue
to expand this afternoon, though how far SE it makes before
nocturnal stabilization is still uncertain as latest runs of the
HRRR and NAMNest keep the heaviest rain just north of our CWA. Where
storms do occur, locally excessive rainfall will be possible, with
the greatest threat near the NC/VA border. 12z HREF LPMM indicates
potential for isolated 1-3"+ amounts in those areas, which makes
sense given above-normal PW values of 1.6-2 inches and very weak
flow and shear (0-6km mean winds only around 5 kts) resulting in
very slow-moving storms and possible merging and training of cells.
Given dry antecedent conditions, think any flash flooding would be
isolated and mainly limited to urban areas.

As for the severe threat, SPC has areas from RDU north and west in a
marginal (level 1 of 5) risk today. The main threat is damaging
winds given steep low-level lapse rates and DCAPE as high as 900
J/kg over the NW Piedmont. Any severe threat should diminish after
dark.

KEY MESSAGE 2... Additional localized heavy rain possible areawide
on Tuesday.

Central NC will likely be positioned between the leading edge of the
synoptic cold front in VA, later to be established as the CAD front,
and convective outflow and/or diff heating boundary from Mon/Mon
night convection. A moderately unstable air mass with weak shear,
tall skinny CAPE, above normal PWAT, and an approaching shortwave
trough from the Ohio Valley into the Southern Appalachians will all
favor an increase in convective coverage with slow moving storms,
that may persist into the overnight period, capable of torrential
rainfall and increased flooding risk (level 2 out of 4 from WPC
Excessive Rainfall Outlook).

KEY MESSAGE 3... Cold air damming will bring much below normal
temperatures during mid to late week.

As the surface front settles S of NC, confidence is high in the
development of a robust, classical cold air damming event this week.
With an early-week rex block in place over the Upper Midwest and
Manitoba/Ontario, mid level energy will undercut the blocking high,
crossing IN/OH before deepening to a low over the Mid Atlantic
region during the mid-late week. This will keep the surface frontal
zone pinned to our S and SE, with steady advection of cool and low-
dewpoint surface air from a fairly strong and anchored surface high
centered over Quebec. This high will weaken as it slowly retrogrades
to the WSW late Thu into Fri, drifting into the N Great Lakes and S
Ontario in response to what is expected to be strong coastal
cyclogenesis just off the Mid Atlantic and Northeast coast by
Fri/Sat, but the circulation around such a low alone should maintain
the wedge regime and low level CAA through at least Fri, despite the
likelihood of further drying aloft potentially eroding much of the
CAD stratus by late in the day.

The result will be multiple days of high temps 10-15 deg F below
normal, including highs from the Triangle to the N and W in the 60s
to around 70 each day Wed through Fri. These temps will be further
held down by copious cloud cover and widespread overrunning rain,
driven in large part by moist isentropic upglide focused at 295K-
305K from Wed morning through Thu night. In addition to the cool
days, we're likely to see a few nighttime lows in the 40s near the
VA border Thu night through Sat night. Rain chances are expected to
dwindle Fri and remain low into the weekend, as low-level stability
decreases with the weakening and retrograding surface ridge. But the
potential for a baggy mid level trough or shear axis holding across
the region along with a persistent low level flow from the N or NNW
around the coastal low should result in highs remaining at least a
category below normal Sat/Sun. Given that we've seen above to much
above-normal temps for all but a couple of days so far this month,
several days of below to much-below normal temps will be a welcome
respite for many.

&&

.AVIATION /18Z MONDAY THROUGH SATURDAY/...
As of 230 PM Monday...

Through 18Z Tuesday: A cold front is currently draped across
southern VA, keeping the MVFR stratus pinned to our north. In the
warm and unstable air mass ahead of it over central NC, visible
satellite shows scattered cumulus beginning to develop, with a few
showers already popping up over the northern and western Piedmont.
Showers and storms are expected to increase in coverage later this
afternoon across mainly the northern Piedmont, with the best chance
from about 21z to 02z. Precipitation chances are greatest at
INT/GSO, followed by RDU, then RWI, and lastly FAY. Brief MVFR or
IFR conditions and gusty erratic winds will be possible with any
storms.

Expect widespread IFR/LIFR ceilings and MVFR/IFR visibilities to
spread in from north to south overnight tonight as cool moist NE
flow sets in behind the front. Isolated showers or light
rain/drizzle could also linger into the overnight hours across the
far north. While visibilities will improve through the morning,
ceilings will be slow to lift, reaching MVFR in most places by late
morning or early afternoon, but likely remaining IFR at INT/GSO
through the end of the TAF period.

Outlook: Unsettled weather may persist under a CAD-regime developing
Tuesday-Wednesday, where periods of sub-VFR stratus and fog may
exist into late week, especially each early morning. Dry weather and
VFR should return once the CAD erodes, by Friday or Saturday.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
None.

&&

DISCUSSION...Danco/AVS/Hartfield
AVIATION...Danco

Hazardous Weather Outlook
National Weather Service Raleigh NC
230 AM EDT Mon Sep 21 2026

NCZ007>010-021>026-038>041-073>076-220900-
Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange-
Durham-Franklin-Davidson-Randolph-Chatham-Wake-Stanly-Montgomery-
Moore-Lee-
230 AM EDT Mon Sep 21 2026

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

There is a Marginal (level 1 of 5) for severe thunderstorms across
the northern and western Piedmont today, with the highest chances
between 3 PM and 11 PM. Damaging straight line winds will be the
primary threat.

There is also a Marginal (level 1 of 4) risk for excessive rainfall
today. Slow moving storms producing high rainfall rates may lead to
localized flooding, especially in urban and poor drainage areas.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a Marginal (level 1 of 4) risk for excessive rainfall once
again on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

NCZ011-027-028-042-043-077-078-083>086-088-089-220900-
Halifax-Nash-Edgecombe-Johnston-Wilson-Harnett-Wayne-Anson-Richmond-
Scotland-Hoke-Cumberland-Sampson-
230 AM EDT Mon Sep 21 2026

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a Marginal (level 1 of 4) risk for excessive rainfall once
on Tuesday. Localized flooding is possible, especially in urban areas
and locations with poor drainage.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

Special Weather Statement
National Weather Service Raleigh NC
637 PM EDT Mon Sep 21 2026

NCZ039-212330-
Randolph NC-
637 PM EDT Mon Sep 21 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN RANDOLPH COUNTY THROUGH
730 PM EDT...

At 637 PM EDT, Doppler radar was tracking a strong thunderstorm near
Asheboro, moving north at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
High Point, Asheboro, Randleman, Archdale, Trinity, Liberty, Ramseur,
Franklinville, Staley, and Randleman Regional Reservior Marina.

This includes the following highways...
 Interstate 85 between Mile Markers 106 and 112.
 Interstate 73 between Mile Markers 71 and 88.
 Interstate 74 between Mile Markers 77 and 79.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Very heavy rain can be expected due to the slow movement of this
storm. Prolonged heavy rain will result in ponding of water on
roadways, standing water in low lying areas, and minor flooding of
creeks and streams. Drivers are urged to slow down and use extra
caution to avoid hydroplaning.

&&

LAT...LON 3592 8004 3590 7954 3579 7954 3567 7970
      3563 8006
TIME...MOT...LOC 2237Z 186DEG 7KT 3577 7981

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

10

Preliminary Local Storm Report
National Weather Service Raleigh NC
650 PM EDT Mon Sep 21 2026

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

0530 PM     Tstm Wnd Dmg     4 SW Sedge Garden       36.04N 80.19W
09/21/2026                   Forsyth            NC   Utility Company

            Trees down causing power outage from damage
            to equipment.

&&

GIH

Preliminary Local Storm Report
National Weather Service Raleigh NC
745 PM EDT Mon Sep 21 2026

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

0600 PM     Tstm Wnd Dmg     4 SSW Carpenter         35.77N 78.90W
09/21/2026                   Wake               NC   Utility Company

            Trees down causing power outage from damage
            to equipment.

&&

GIH

Preliminary Local Storm Report
National Weather Service Raleigh NC
802 PM EDT Mon Sep 21 2026

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

0625 PM     Tstm Wnd Dmg     3 NNW Franklinville     35.78N 79.71W
09/21/2026                   Randolph           NC   Public

            Tree in roadway on Carl Allred Rd. blocking
            both lanes of travel.

&&

GIH

Preliminary Local Storm Report
National Weather Service Raleigh NC
812 PM EDT Mon Sep 21 2026

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

0636 PM     Tstm Wnd Dmg     2 NE Hillsborough       36.09N 79.08W
09/21/2026                   Orange             NC   Utility Company

            Trees down causing power outages from damage
            to equipment.

&&

GIH

Preliminary Local Storm Report
National Weather Service Raleigh NC
817 PM EDT Mon Sep 21 2026

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

0555 PM     Tstm Wnd Dmg     4 ENE Winston-Salem     36.12N 80.21W
09/21/2026                   Forsyth            NC   Utility Company

            Trees down causing power outages due to
            damage to equipment.

&&

GIH