Alert archive / North Carolina / Areal Flood Warnings in 2021

Areal Flood Warning 2, NWS Greenville-Spartanburg, SC

March 25, 2021Henderson County, Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this areal flood warning at Mar 25, 2021, 9:48 PM EDT for Henderson County, Transylvania County, North Carolina. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 25, 2021, 9:48 PM EDT (01:48 UTC)
Expired
Mar 26, 2021, 11:32 AM EDT
In force
14 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Henderson County, NC, Transylvania County, NC

The radar

The Greer radar (KGSP), 58 km from the middle of the area, began a volume at 01:49 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.8 hours before the alert went out and 262 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 316 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
28 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
316 m²/s²
0-3 km storm-relative helicity
501 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

743 
WGUS42 KGSP 260148
FLWGSP

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Greenville-Spartanburg SC
948 PM EDT Thu Mar 25 2021

NCC089-175-261345-
/O.NEW.KGSP.FA.W.0002.210326T0148Z-210326T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henderson NC-Transylvania NC-
948 PM EDT Thu Mar 25 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Flood Warning for...
  Henderson County in western North Carolina...
  Transylvania County in western North Carolina...

* Until 945 AM EDT Friday.

* At 948 PM EDT, Doppler radar and automated rain gauges indicated 
  heavy rain due to thunderstorms over the past 8-10 hours has 
  resulted in widespread accumulations of 2-5 inches across 
  Transylvania and Henderson counties, with isolated areas reaching 
  6 inches, especially across southern and western Transylvania 
  County. Nuisance to Minor flooding is ongoing and with additional 
  rainfall of 1-3 inches expected over the next 6 hours, ongoing 
  flooding is expected to deepen and new areas of flooding may 
  develop overnight.  Therefore, the Flood Advisory is being 
  replaced by a Flood Warning to highlight the increased likelihood 
  for more significant flooding.

* Mud Creek and the Little River are exceeding bankfull in the usual 
  locations, including near and south of Hendersonville near Erkwood 
  Dr. and near Penrose and Merrill Ln.  However, these streams are 
  likely to exceed Minor Flood Stage, resulting in deeper and more 
  widespread lowland flooding over the next several hours.  Rapid 
  rises along other small tributaries and larger streams including 
  the French Broad River are ongoing and additional flooding is 
  expected.  Common, flood-prone areas are already flooding across 
  the Advisory area, including secondary roads, low-lying areas 
  adjacent to streams, boat-access areas, parks, and farmland.  
  However, the flooding is expected to deepen in these areas and 
  develop in new areas including Rosman and Pisgah Forest over the 
  next several hours.

* Some locations that may see new and/or worsening areas of flooding 
  develop include...Hendersonville, Blantyre, Brevard, Mills River, 
  Fletcher, Flat Rock, Etowah, Mountain Home, Laurel Park, Penrose, 
  Saluda, Rosman, Chimney Rock Village, Dupont State Forest, and 
  Jones Gap State Park.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area. This additional rain may result in additional flooding, 
some of which could be significant. Please avoid common, flood-prone 
areas this evening and stay away from all low-water crossings and 
areas adjacent to streams as flooding is expected to continue 
through the overnight hours and possibly into Friday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3545 8271 3542 8254 3547 8242 3546 8236
      3550 8233 3547 8227 3539 8226 3529 8235
      3518 8237 3522 8239 3517 8244 3513 8268
      3507 8276 3503 8301 3505 8306 3513 8298
      3516 8300 3523 8293 3529 8292 3532 8283

$$

JMP
3 follow-up statements
550 
WGUS82 KGSP 260444
FLSGSP

Flood Statement
National Weather Service Greenville-Spartanburg SC
1244 AM EDT Fri Mar 26 2021

NCC089-175-261345-
/O.CON.KGSP.FA.W.0002.000000T0000Z-210326T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henderson NC-Transylvania NC-
1244 AM EDT Fri Mar 26 2021

...FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM EDT THIS MORNING FOR 
HENDERSON AND TRANSYLVANIA COUNTIES...

At 1244 AM EDT, Doppler radar and automated rain gauges indicated 
heavy rain due to thunderstorms over the past 12 hours has resulted 
in widespread accumulations of 3-5 inches across Transylvania and 
Henderson counties, with isolated areas reaching 6 inches, 
especially across southern and western Transylvania County. Nuisance 
to Minor flooding is ongoing and with additional rainfall of 1-3 
inches expected over the next 6 hours, ongoing flooding is expected 
to deepen and areas of flash flooding may develop overnight.  It is 
important people stay weather aware into Friday morning.

The French Broad River near Rosman has exceeded Minor Flood Stage 
and is rising past 9.6 feet.  A crest between 10 and 11 feet is 
expected due to the rainfall that has already occurred.  However, 
additional rainfall is possible over the next several hours and 
additional rises are possible.  If this occurs, a Flash Flood 
Warning may be issued and the French Broad River may exceed 12.0 
feet.  At 11.0 feet, the French Broad River is approaching homes 
along Depot St. in Rosman and may require evacuations.  
Additionally, floodwaters may inundate US 178 adjacent to the gauge 
site and require closure.

Some locations that may see new and/or worsening areas of flooding 
develop include...Hendersonville, Blantyre, Brevard, Mills River, 
Fletcher, Flat Rock, Etowah, Mountain Home, Laurel Park, Penrose, 
Saluda, Rosman, Chimney Rock Village, Dupont State Forest, and Jones 
Gap State Park.

Additional rainfall amounts of 1 to 3 inches are possible in the 
warned area through early Friday morning. Due to the saturated
soils and elevated streams, some of this flooding may be 
significant, and Flash Flood Warnings may be required.  Residents 
near streams are urged to stay weather aware and be prepared to flee 
to higher ground should flash flooding develop.  Drivers are urged 
to avoid low-water crossings and other low-lying roadways near 
streams.  Have multiple ways to receive Warnings.  Flooding is 
expected to continue through the overnight hours and possibly into 
early Friday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3545 8271 3542 8254 3547 8242 3546 8236
      3550 8233 3547 8227 3539 8226 3529 8235
      3518 8237 3522 8239 3517 8244 3513 8268
      3507 8276 3503 8301 3505 8306 3513 8298
      3516 8300 3523 8293 3529 8292 3532 8283

$$

JMP
706 
WGUS42 KGSP 261332
FLWGSP

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Greenville-Spartanburg SC
932 AM EDT Fri Mar 26 2021

NCC089-175-261545-
/O.EXT.KGSP.FA.W.0002.000000T0000Z-210326T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henderson NC-Transylvania NC-
932 AM EDT Fri Mar 26 2021

The National Weather Service in Greenville-Spartanburg has extended 
the

* Flood Warning for...
  Henderson County in western North Carolina...
  Transylvania County in western North Carolina...

* Until 1145 AM EDT.

* At 932 AM EDT, Gauge reports indicated flooding is ongoing in 
  eastern Transylvania county and central Henderson County.

* Mud Creek has crested and is falling below 8 feet. At 7.5 feet, 
  East Caswell Street is flooded from storm culvert backwater 
  effects underneath the railroad tracks adjacent to Mud Creek. 
  Little River is at 10.6 feet. At 10 feet,  Farmland on either side 
  of the Little River near Cascade Lake Rd and Merrill Ln is 
  experiencing up to 24" of inundation. Cascade Lake Rd and Merrill 
  Ln are experiencing inundation up to 12-18" deep. Many ditches and 
  small streams in the vicinity will likely be flooding.

* Some locations that will experience flooding include...
  Hendersonville along Mud Creek, and Transylvania County along 
  Little River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3545 8271 3542 8254 3547 8242 3546 8236
      3550 8233 3547 8227 3539 8226 3529 8235
      3518 8237 3522 8239 3517 8244 3513 8268
      3507 8276 3503 8301 3505 8306 3513 8298
      3516 8300 3523 8293 3529 8292 3532 8283

$$

RWH
086 
WGUS82 KGSP 261532
FLSGSP

Flood Statement
National Weather Service Greenville-Spartanburg SC
1132 AM EDT Fri Mar 26 2021

NCC089-175-261542-
/O.CAN.KGSP.FA.W.0002.000000T0000Z-210326T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henderson NC-Transylvania NC-
1132 AM EDT Fri Mar 26 2021

...FLOOD WARNING IS CANCELLED FOR HENDERSON AND TRANSYLVANIA 
COUNTIES...

Flood waters along Mud Creek and creeks and tributaries in 
Transylvania County have receded. Flooding is no longer expected to 
pose a threat in those areas. Flooding along the French Broad and 
Little Rivers will continue. Please continue to heed remaining road 
closures.

LAT...LON 3545 8271 3542 8254 3547 8242 3546 8236
      3550 8233 3547 8227 3539 8226 3529 8235
      3518 8237 3522 8239 3517 8244 3513 8268
      3507 8276 3503 8301 3505 8306 3513 8298
      3516 8300 3523 8293 3529 8292 3532 8283

$$

RWH

What forecasters said that day

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

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this areal flood warning went out at Mar 25, 8:35 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Mar 25, 8:35 PM EDT, 1 hour 13 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
835 PM EDT Thu Mar 25 2021

.SYNOPSIS...
A vigorous cold front is expected to move through the area later
tonight and into Friday and could produce isolated strong to severe
convection along with significant rainfall. The active pattern
continues this weekend as another cold front slides through the
area on Sunday bringing another round of showers and thunderstorms.

&&

.NEAR TERM /THROUGH FRIDAY/...
As of 830 PM Thursday: The latest surface analysis shows what
appears to be a weak insitu-wedging roughly along and north of I-85
this evening that developed from the steady rainfall from earlier
today. This is indicated by weak high pressure nosing southwest from
the NC Piedmont towards northern GA. This will limit surface based
CAPE and instability overall for this area. This combined with
gradually diminishing upper support as the parent low moves
northeast into the Great Lakes and loss of daytime heating should
limit the coverage of severe thunderstorms compared to neighbors to
our west. That being said SPC recently issued a Tornado Watch for
much of northern GA good through 2 am, just to our west, so we will
be watching the developing situation closely. On that note, high
values of shear/helicity will continue along and ahead of the cold
front, so it probably won't take much instability to maintain strong
to severe thunderstorms (a high shear/low cape environment). Steady
rain with embedded heavy rain will likely continue especially near
the southwest mountains overnight. So we will likely see additional
flooding during this time with the current Flash Flood Watch
seemingly well placed for the time being.

Otherwise, we remain under a weak WAA regime and influence of a
subtropical ridge off the SE Coast. This ridge is downstream of an
expansive trough, within which a potent shortwave will move today,
driving development of a low pressure system over the lower MS
Valley. A significant severe outbreak is expected over portions of
the TN, MS, and AL. Fairly brisk southerly flow has already
initiated convection over the high terrain. The depth and strength
of moisture advection will be impressive, leading to PWATs peaking
near +3 SD, and IVT parameter values that are also anomalously
large. Deep layer hodographs will already be long and curving, but
midlevel lapse rates are not the greatest; the limited instability
will keep our severe threat comparatively small during the day, with
convective layers too shallow to realize all the shear. This does
somewhat limit our heavy rain threat as well, though there will be
widespread coverage and potential for multiple rounds thru tonight.
WPC Day 1 ERO includes most of our SW mtns in a Moderate Risk,
partly because of the aforementioned anomalies and high
probabilities for significant rain rates from the HREF. We are
hoisting a Flash Flood Watch from 18z today to 12z Fri. The same
southerly flow will lead to rather gusty winds, and higher
elevations of the mtns will be exposed to near Wind Advisory-level
conditions.

LLJ is expected to precede the cold front into our area in the
early evening, again enhancing precip generation along the srn
end of the Appalachians; a narrow tongue of sfc based instability
will linger until the front itself enters in the late evening. A
convective line, likely with some embedded rotation will support
vague supercell structure. The dynamic lift provided by the
shortwave will mostly miss our area to the NW as the wave tracks
north of the OH River; this coupled with the unfavorable timing,
and diminishing instability, should begin to impact the convection
particularly as it crosses the mountains. Nevertheless, a narrow
line of strong showers with a few embedded tstms could progress
across the area overnight. Prog soundings reveal that the line will
encounter poor low to midlevel lapse rates, and this would limit sfc
based updrafts and thus tornado risk. The SPC slight risk extending
only into the mtns looks well-placed and even extended slightly
further east. Recent short-term consensus PoPs as well as hourly
NBM seem to be keying better on the shadowing effect of the mtns,
and timing/chances have been revised thru tonight in new fcst grids.

The frontal boundary should push out of the region by 18z Friday
as sfc high builds in to the NW and we enter a post-frontal
environment by the very end of the forecast period. Drier weather
will prevail, with highs in the low 80s in most locations outside
the mountains and 70s in the higher elevations. One factor that
can play a role is how fast the cold front exits the region and
allows for the clouds to scour out.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
As of 145 PM EDT Thursday: the short term picks up at 00Z Saturday,
with a shortwave trough rounding the broader ridge sitting over the
east coast.  By this time, forcing from the trough will largely
be tapering off to the north of our CWA, and a brief bout of
dry weather is in store for Friday night.  Renewed southwesterly
flow over the Tennessee Valley will pump Gulf moisture into the
lower troposphere through the day Saturday, working with weak
mid-level forcing to produce scattered afternoon showers across TN,
spreading into the Blue Ridge Mountains and western SC Upstate
by late Saturday afternoon.  The developing surface low skirts
its way northeast along the Appalachians and drags a cold front
across our area early Sunday afternoon.

Ample WAA ahead of this front paired with decent solar insolation
should prime the environment for convection, with the Piedmont
and Upstate seeing SBCAPE values in the 500-1000 J/kg range and a
40-50kt LLJ riding out ahead of the frontal boundary.  Given the
timing of the frontal passage in the early afternoon, this is a
pattern to keep an eye on over the next day or two.  Some precip
may still be falling for at least the eastern part of our CWA by
the end of the short term at 00Z Monday, as the front tapers off
to the east.

Temps are on track to stay several degrees above normal on Saturday
and Sunday, before dropping back to near-normal Sunday night in
the wake of the cold front.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 200 PM EDT Thursday: by Sunday night, good mid-level forcing
associated with the latest trough is exiting the region to the east,
and precip drops off overnight behind the departing cold front.
We then enter a weak upper ridging regime as high pressure builds
in at the surface.  So, Monday should be dominated by clear,
dry weather as the frontal boundary stalls well south of us.

Meanwhile, the GFS and ECMWF depict a closed upper low meandering
out of the Southern Plains and causing coastal cyclogenesis along
the stagnant frontal boundary.  The resulting surface low tracks
from the Gulf Coast out to the NC/SC coastline.  It looks to only
graze our CWA at this point, yielding chance PoPs on Tuesday
afternoon and overnight.  On Thursday, yet another surface low
pushes into the region from the west, bringing another bout of
rainfall to the region to cap out the week.

Temperatures on Monday and Tuesday look to be a couple degrees
below normal, before southerly WAA brings them back to near-normal
later in the week.

&&

.AVIATION /01Z FRIDAY THROUGH TUESDAY/...
At KCLT and elsewhere: Below normal confidence in 00Z TAFs due to
uncertainty in timing and strength of convective line to move
through the area from west to east between roughly 05Z and 15Z.
Steady rain with isolated TSRA is expected ahead of this feature
with IFR and lower cigs/vsbys likely in heavier shra/tsra. Front may
stall south of TAF sites into Friday with little if any impact to
terminals.

Outlook: Another system may bring showers Saturday with
thunderstorms possible by Sunday.

Confidence Table...

            00-06Z        06-12Z        12-18Z        18-00Z
KCLT       High  91%     High  91%     High  87%     High 100%
KGSP       High  84%     Med   69%     High  95%     High 100%
KAVL       Med   69%     Med   66%     High  99%     High 100%
KHKY       Med   61%     Med   65%     High  86%     High 100%
KGMU       High  83%     Med   77%     High  95%     High 100%
KAND       High  92%     High  91%     High  95%     High 100%

The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables are available at
the following link:

www.weather.gov/gsp/aviation

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...Flash Flood Watch until 8 AM EDT Friday for GAZ010.
NC...Flash Flood Watch until 8 AM EDT Friday for NCZ051-052-058-059-
     062>064.
SC...None.

&&

SYNOPSIS...MPR
NEAR TERM...CAC/Munroe
SHORT TERM...MPR
LONG TERM...MPR
AVIATION...Munroe
Hazardous weather outlook, Mar 25, 4:45 AM EDT, 17 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
445 AM EDT Thu Mar 25 2021

GAZ010-NCZ059-062>064-260845-
Rabun-Northern Jackson-Macon-Southern Jackson-Transylvania-
445 AM EDT Thu Mar 25 2021

...FLASH FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
FRIDAY MORNING...

This Hazardous Weather Outlook is for northeast Georgia and western
North Carolina.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Additionally, scattered thunderstorms will occur at times through
tonight. Any thunderstorm will be capable of cloud-to-ground
lightning. Late this afternoon and this evening, thunderstorms may
move in from Tennessee which will pose a risk of damaging winds and
hail up to 1 inch in diameter, and a small risk of a tornado.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

NCZ051-052-058-260845-
Swain-Haywood-Graham-
445 AM EDT Thu Mar 25 2021

...FLASH FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
FRIDAY MORNING...

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Additionally, scattered thunderstorms will occur at times through
tonight. Any thunderstorm will be capable of cloud-to-ground
lightning. Late this afternoon and this evening, thunderstorms may
move in from Tennessee which will pose a risk of damaging winds and
hail up to 1 inch in diameter, and a small risk of a tornado.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Saturday night and early Sunday, another round of thunderstorms is
expected. These storms also may produce severe weather in the form
of damaging wind and large hail.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather or flooding to the NWS while following all
local, state, and CDC guidelines.

GAZ017-018-026-028-029-NCZ053-065-501>510-SCZ001>006-010-260845-
Habersham-Stephens-Franklin-Hart-Elbert-Buncombe-Henderson-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Anderson-
445 AM EDT Thu Mar 25 2021

This Hazardous Weather Outlook is for northeast Georgia, western
North Carolina and upstate South Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will occur at times through tonight. Any
thunderstorm will be capable of cloud-to-ground lightning. Tonight,
a line of thunderstorms will move in from the west, posing a risk of
damaging winds and hail up to 1 inch in diameter, and a tornado
cannot be entirely ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

NCZ033-048>050-260845-
Avery-Madison-Yancey-Mitchell-
445 AM EDT Thu Mar 25 2021

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will occur at times through tonight. Any
thunderstorm will be capable of cloud-to-ground lightning. Late this
afternoon and this evening, thunderstorms may move in from Tennessee
which will pose a risk of damaging winds and hail up to 1 inch in
diameter, and a small risk of a tornado.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Saturday night and early Sunday, another round of thunderstorms is
expected. These storms also may produce severe weather in the form of
damaging wind and large hail.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

NCZ082-SCZ014-019-260845-
Union NC-Chester-Greenwood-
445 AM EDT Thu Mar 25 2021

This Hazardous Weather Outlook is for lower piedmont North Carolina
and upstate South Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will occur at times through tonight. Any
thunderstorm will be capable of locally heavy rain and cloud-to-
ground lightning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The severe weather risk will continue until the line of storms moves
out Friday morning. Damaging winds would be the main concern Friday
morning.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-056-057-068>072-SCZ007>009-011>013-260845-
Alexander-Iredell-Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Spartanburg-Cherokee-York-Abbeville-Laurens-
Union SC-
445 AM EDT Thu Mar 25 2021

This Hazardous Weather Outlook is for piedmont North Carolina and
upstate South Carolina.

.DAY ONE...Today and tonight.

Scattered thunderstorms will occur at times through tonight. Any
thunderstorm will be capable of locally heavy rain and cloud-to-
ground lightning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

In the hours before

Local storm report, Mar 25, 5:40 PM EDT, 4 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
540 PM EDT THU MAR 25 2021

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

0420 PM     TSTM WND DMG     3 SE HICKORY TAVERN     34.49N 82.15W
03/25/2021                   LAURENS            SC   TRAINED SPOTTER

            TREES DOWN WITH VARIED DIRECTION OF FALL, 1800 BLOCK OF
            WILSONTOWN RD.

&&

WJM
Local storm report, Mar 25, 5:49 PM EDT, 3 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
549 PM EDT THU MAR 25 2021

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

0505 PM     HAIL             2 WNW CARLISLE          34.61N 81.50W
03/25/2021  E1.00 INCH       UNION              SC   PUBLIC

            ALSO TREES AND POWER LINES DOWN, LOCATION APPROXIMATE.

&&

WJM
Special weather statement, Mar 25, 5:59 PM EDT, 3 hours 49 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
559 PM EDT Thu Mar 25 2021

NCZ071-082-252230-
Union NC-Mecklenburg NC-
559 PM EDT Thu Mar 25 2021

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN MECKLENBURG AND
UNION COUNTIES UNTIL 630 PM EDT...

At 559 PM EDT, Doppler radar indicated strong thu Tornado Watch
remains in effect for the warned area. nderstorms along a
line extending from 4 miles north of Indian Land to 3 miles north of
Lancaster, and moving east at 55 mph.

Locations to be impacted include...
Monroe, South Charlotte, Matthews, Indian Trail, Weddington,
Stallings, Unionville, Wesley Chapel, Wingate and Waxhaw.

Wind gusts up to 45 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3481 8032 3482 8080 3494 8078 3507 8090
      3519 8051 3518 8049 3518 8048 3517 8047
      3516 8044 3517 8042 3516 8041 3518 8037
      3517 8036 3520 8028
TIME...MOT...LOC 2159Z 261DEG 48KT 3507 8084 3477 8076

LANE
Special weather statement, Mar 25, 6:23 PM EDT, 3 hours 25 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
623 PM EDT Thu Mar 25 2021

NCZ509-510-SCZ003-005>007-252245-
Polk Mountains NC-Eastern Polk NC-Greater Pickens SC-
Greenville Mountains SC-Spartanburg SC-Greater Greenville SC-
623 PM EDT Thu Mar 25 2021

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN POLK...NORTHEASTERN
GREENVILLE AND NORTHWESTERN SPARTANBURG COUNTIES UNTIL 645 PM EDT...

At 622 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 12 miles south of Hendersonville to 5 miles east
of Easley, and moving east at 45 mph.

Locations to be impacted include...
Greenville, Columbus, Greer, Taylors, Berea, Welcome, Travelers
Rest and Duncan.

Wind gusts up to 45 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3480 8253 3518 8246 3516 8246 3517 8244
      3520 8242 3521 8238 3518 8237 3521 8235
      3528 8200 3526 8198 3482 8212 3480 8247
      3482 8249
TIME...MOT...LOC 2222Z 253DEG 37KT 3514 8241 3483 8250

LANE
Special weather statement, Mar 25, 6:30 PM EDT, 3 hours 18 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
630 PM EDT Thu Mar 25 2021

NCZ082-252245-
Union NC-
630 PM EDT Thu Mar 25 2021

...STRONG THUNDERSTORMS WILL IMPACT EASTERN UNION COUNTY UNTIL 645 PM
EDT...

At 630 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 17 miles southeast of Downtown Concord to 13
miles southeast of Monroe, and moving east at 35 mph.

Locations to be impacted include...
Wingate, Marshville, Sturdivants, Unionville, Fairview In Union
County and New Salem.

Wind gusts up to 45 mph will be possible in these areas.

LAT...LON 3481 8032 3482 8046 3519 8051 3518 8049
      3518 8048 3517 8047 3516 8044 3517 8042
      3516 8041 3518 8037 3517 8036 3517 8032
      3519 8030 3520 8028
TIME...MOT...LOC 2230Z 272DEG 30KT 3519 8045 3483 8040

LANE
Special weather statement, Mar 25, 6:54 PM EDT, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
654 PM EDT Thu Mar 25 2021

NCZ068-508-510-SCZ007-008-252345-
Greater Rutherford NC-Cleveland NC-Eastern Polk NC-Cherokee SC-
Spartanburg SC-
654 PM EDT Thu Mar 25 2021

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN RUTHERFORD...
SOUTHEASTERN POLK...SOUTHWESTERN CLEVELAND...NORTHERN SPARTANBURG AND
NORTHWESTERN CHEROKEE COUNTIES UNTIL 745 PM EDT...

At 654 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 7 miles northeast of Columbus to 11 miles west of
Spartanburg, and moving east at 40 mph.

Locations to be impacted include...
Spartanburg, Gaffney, Forest City, Boiling Springs SC, Boiling
Springs NC, Duncan, Lyman, Cowpens, Wellford and Inman.

Wind gusts up to 40 mph will be possible in these areas.

LAT...LON 3546 8158 3500 8164 3483 8220 3484 8221
      3526 8216
TIME...MOT...LOC 2254Z 248DEG 36KT 3529 8208 3493 8213

LANE

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 25, 9:20 PM EDTAreal Flood WarningGSPMacon9 hr
Mar 25, 10:18 PM EDTRiver Flood WarningGSPBuncombe, Henderson59 hr
Mar 25, 10:24 PM EDTAreal Flood AdvisoryGSPHaywood, Jackson8 hr
Mar 25, 10:29 PM EDTRiver Flood AdvisoryGSPMadison3 hr
Mar 25, 10:45 PM EDTAreal Flood AdvisoryGSPBuncombe, McDowell6 hr
Mar 25, 10:50 PM EDTRiver Flood AdvisoryGSPBuncombe64 hr
Mar 25, 10:57 PM EDTRiver Flood WarningGSPBuncombe6 hr
Mar 25, 11:42 PM EDTSpecial Weather StatementGSPCleveland, Gaston, Lincoln48 min
Mar 26, 12:27 AM EDTRiver Flood AdvisoryGSPSwain11 hr
Mar 26, 1:13 AM EDTAreal Flood AdvisoryGSPGraham, Swain5 hr
Mar 26, 1:45 AM EDTRiver Flood WarningGSPMadison13 hr
Mar 26, 2:23 AM EDTSpecial Weather StatementGSPCatawba, Cleveland, Lincoln, Polk, Rutherford37 min
Mar 26, 2:50 AM EDTAreal Flood AdvisoryGSPPolk, Rutherford14 hr
Mar 26, 2:55 AM EDTRiver Flood WarningGSPGaston51 hr
Mar 26, 2:57 AM EDTSpecial Weather StatementGSPCatawba, Iredell, Lincoln33 min
Mar 26, 3:00 AM EDTSpecial Weather StatementGSPCleveland30 min
Mar 26, 3:05 AM EDTRiver Flood AdvisoryGSPMadison8 hr
Mar 26, 3:21 AM EDTRiver Flood WarningGSPCleveland27 hr
Mar 26, 3:28 AM EDTSpecial Weather StatementGSPCleveland, Gaston, Lincoln32 min
Mar 26, 3:52 AM EDTAreal Flood AdvisoryGSPCabarrus25 hr
Mar 26, 3:56 AM EDTSpecial Weather StatementGSPCabarrus, Gaston, Rowan34 min
Mar 26, 4:12 AM EDTAreal Flood AdvisoryGSPCabarrus, Iredell, Mecklenburg, Rowan12 hr
Mar 26, 4:49 AM EDTAreal Flood AdvisoryGSPMacon, Swain24 hr
Mar 26, 8:50 AM EDTAreal Flood AdvisoryGSPAlexander, Catawba, Iredell21 hr
Mar 26, 3:49 PM EDTAreal Flood WarningGSPRowan9 hr

Nearby

Areal Flood Warnings in North Carolina, 2021Every areal flood warning in 2021

Sources

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