Alert archive / South Carolina / Flash Flood Warnings in 2020

Flash Flood Warning 4, NWS Greenville-Spartanburg, SC

February 6, 2020Oconee County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Feb 6, 2020, 5:40 AM EST for Oconee County, Pickens County, South Carolina. It was in force for 14 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 6, 2020, 5:40 AM EST (10:40 UTC)
Expired
Feb 6, 2020, 7:30 PM EST
In force
14 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

Counties Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 69 km from the middle of the area, began a volume at 10:44 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.

What was reported inside it

TimeReportWhereRemark
Feb 6, 8:30 AM ESTHEAVY RAIN 3.54 Nw Salem, SCIN THE LAST 2 HOURS.
Feb 6, 9:01 AM ESTFLASH FLOODDacusville, SCFREEMAN ROAD,NEAR THE INTERSECTION WITH HIGHWY 186, UNDER WATER WITH PART OF THE ROAD WASHED OUT.
Feb 6, 9:56 AM ESTFLASH FLOODPickens, SCROUTE 178 AND FLEETWOOD DRIVE ARE BOTH FLOODED.
Feb 6, 11:42 AM ESTFLASH FLOODEasley, SCEMERGENCY MANAGER REPORTED 42 ROADS CLOSED ACROSS THE COUNTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this flash flood warning; the first came 201 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.7 hours before the alert went out and 213 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, Peachtre/Fal Fld, GA at 00:00Z on 2020-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Peachtre/Fal Fld, GA at 00:00Z on 2020-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 230 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1101 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
230 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

645 
WGUS52 KGSP 061040
FFWGSP
SCC073-077-061630-
/O.NEW.KGSP.FF.W.0004.200206T1040Z-200206T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
540 AM EST Thu Feb 6 2020

The National Weather Service in Greenville-Spartanburg has issued a

* Flash Flood Warning for...
  Pickens County in Upstate South Carolina...
  Oconee County in Upstate South Carolina...

* Until 1130 AM EST.

* At 536 AM EST, Rainfall across the warned counties has already 
  accumulated up to 2 inches, with localized 3 inches of rain in the 
  mountains.  Given the already wet conditions, and with stream 
  levels rising, the threat for additional heavy showers and a few 
  thunderstorms will produce an additional inch or two of rainfall 
  along with the threat of high rainfall rates.  This will lead to 
  flooded roads and cause streams and creeks to rise out of their 
  banks.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
flooded areas by foot or by automobile.

&&

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3493 8316 3494 8311 3500 8310 3509 8279
      3505 8275 3507 8257 3501 8260 3501 8254
      3484 8248 3483 8248 3466 8281 3447 8300

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$
4 follow-up statements
510 
WGUS72 KGSP 061435
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
935 AM EST Thu Feb 6 2020

SCC073-077-061630-
/O.CON.KGSP.FF.W.0004.000000T0000Z-200206T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pickens SC-Oconee SC-
935 AM EST Thu Feb 6 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM EST FOR
PICKENS AND OCONEE COUNTIES...

At 932 AM EST, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Up to four inches of rain have already 
across the higher elevations and an additional 1-2 inches will fall 
over the next few hours. The additional heavy rainfall could begin 
producing landslides across steep terrains possibly crossing area 
roadways.  

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flooding of small creeks and streams, urban areas, 
         highways, streets and underpasses as well as other drainage 
         and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Addditionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
flooded areas by foot or by automobile.

When it is safe to do so, please report flood waters or landslides
flowing over roads or threatening property to the National Weather
Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, by posting on
our Facebook page, or via Twitter using hashtag NWSGSP. Your message
should describe the event and the specific location where it
occurred, including roadways, nearby cross streets, stream names and
other landmarks.

&&

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3493 8316 3494 8311 3500 8310 3509 8279
      3505 8275 3507 8257 3501 8260 3501 8254
      3484 8248 3483 8248 3466 8281 3447 8300

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

KRENTZ
068 
WGUS72 KGSP 061615
FFSGSP

Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
1115 AM EST Thu Feb 6 2020

SCC077-061624-
/O.CAN.KGSP.FF.W.0004.000000T0000Z-200206T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pickens SC-
1115 AM EST Thu Feb 6 2020

...THE FLASH FLOOD WARNING FOR PICKENS COUNTY IS CANCELLED...

The flash flood warning has been replaced by a flash flood 
emergency. Seek higher ground.   

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3484 8325 3493 8316 3494 8311 3500 8310
      3505 8290 3499 8294 3495 8291 3479 8288
      3474 8290 3473 8286 3464 8283 3447 8300

$$

SCC073-061630-
/O.CON.KGSP.FF.W.0004.000000T0000Z-200206T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Oconee SC-
1115 AM EST Thu Feb 6 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM EST FOR
OCONEE COUNTY...

At 1114 AM EST, Doppler radar indicated thunderstorms producing heavy
rain across the warned area.  Flash flooding is ongoing or expected
to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flooding of small creeks and streams, urban areas, 
         highways, streets and underpasses as well as other drainage 
         and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Additionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
flooded areas by foot or by automobile.

When it is safe to do so, please report flood waters or landslides
flowing over roads or threatening property to the National Weather
Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, by posting on
our Facebook page, or via Twitter using hashtag NWSGSP. Your message
should describe the event and the specific location where it
occurred, including roadways, nearby cross streets, stream names and
other landmarks.

&&

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3484 8325 3493 8316 3494 8311 3500 8310
      3505 8290 3499 8294 3495 8291 3479 8288
      3474 8290 3473 8286 3464 8283 3447 8300

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

KRENTZ
096 
WGUS52 KGSP 061621
FFWGSP
SCC073-062030-
/O.EXT.KGSP.FF.W.0004.000000T0000Z-200206T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
1121 AM EST Thu Feb 6 2020

The National Weather Service in Greenville-Spartanburg has extended
the

* Flash Flood Warning for...
  Oconee County in Upstate South Carolina...

* Until 330 PM EST.

* At 1117 AM EST, Doppler radar indicated thunderstorms producing 
  heavy rain continuing across the warned area. Isolated flash 
  flooding and closed roadways is occurring and will continue into 
  the afternoon. 

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Additionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
flooded areas by foot or by automobile.

When it is safe to do so, please report flood waters or landslides
flowing over roads or threatening property to the National Weather
Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, by posting on
our Facebook page, or via Twitter using hashtag NWSGSP. Your message
should describe the event and the specific location where it
occurred, including roadways, nearby cross streets, stream names and
other landmarks.

&&

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3484 8325 3493 8316 3494 8311 3500 8310
      3505 8290 3499 8294 3495 8291 3479 8288
      3474 8290 3473 8286 3464 8283 3447 8300

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

KRENTZ
857 
WGUS52 KGSP 061958
FFWGSP
SCC073-070030-
/O.EXT.KGSP.FF.W.0004.000000T0000Z-200207T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
258 PM EST Thu Feb 6 2020

The National Weather Service in Greenville-Spartanburg has extended
the

* Flash Flood Warning for...
  Oconee County in Upstate South Carolina...

* Until 730 PM EST.

* At 256 PM EST, Doppler radar indicated thunderstorms producing 
  heavy rain has fallen across the warned area. Moderate rainfall 
  will continue over the next couple hours and water levels will 
  remain elevated. Flash flooding conditions will continue in the 
  early evening. 

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flooding of small creeks and streams, urban areas, 
           highways, streets and underpasses as well as other 
           drainage and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, highways, and underpasses. Additionally, country
roads and farmlands along the banks of creeks, streams, and other
low-lying areas are subject to flooding.

A Flash Flood Warning means that flooding is imminent or occurring.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
flooded areas by foot or by automobile.

When it is safe to do so, please report flood waters or landslides
flowing over roads or threatening property to the National Weather
Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, by posting on
our Facebook page, or via Twitter using hashtag NWSGSP. Your message
should describe the event and the specific location where it
occurred, including roadways, nearby cross streets, stream names and
other landmarks.

&&

LAT...LON 3451 8308 3461 8316 3461 8323 3468 8334
      3473 8335 3482 8331 3482 8327 3485 8327
      3484 8325 3493 8316 3494 8311 3500 8310
      3505 8290 3499 8294 3495 8291 3479 8288
      3474 8290 3473 8286 3464 8283 3447 8300

FLASH FLOOD...RADAR INDICATED

$$

KRENTZ

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Feb 6, 3:24 AM EST, 2 hours 16 minutes earlier.

Area forecast discussion, Feb 6, 3:24 AM EST, 2 hours 16 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
324 AM EST Thu Feb 6 2020

.SYNOPSIS...
Abundant moisture will impact the region today into tonight ahead of
an approaching cold front and strong upper-level disturbance.
Colder, but drier, conditions will develop behind the front through
Friday. A swiftly moving system will cross the region on Saturday,
before dry high pressure sets up by Sunday. Another moist cold front
will approach the area slowly from the west during the early to
middle part of next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 245 AM EST: The ingredients are in place for a very wet and
stormy day across the western Carolinas and northeast Georgia. Water
vapor imagery reveals a prominent 500 mb trough moving across TX/OK
early this morning. A tremendous fetch of moisture is evident east
of the trough across the lower MS River Valley and stretching up the
Appalachians mountain chain. Precipitable water values in this plume
are running 1.5 to 1.75 inches, with anomalies some 3+ standard
deviations above normal. A Flash Flood Watch is already in place
across the entire forecast area, and no changes are planned with the
expiration still set at midnight tonight.

As the base of the trough moves east over the lower MS River Valley
today, lobes of stronger DPVA will shuttle northeast across the
southern Appalachians and adjacent foothills/piedmont. This will
combine with robust upper level divergence associated with the
subtropical jet streak reaching 170+ kt at times to produce
impressive forcing. Waves of better sfc-6km bulk shear will cross
the region ahead of the associated surface cold front, with values
around 70 kt at times. Instability was looking to be the main
limiting factor for widespread severe weather, with sbCAPE values
generally just a few hundred J/kg during the daytime hours, and mid-
level lapse rates rather modest. However, recent RAP runs are now
suggesting some sbCAPEs in the 500 to 1000 J/kg range at times
midday as mid 60s dewpoints approach. Overall, the dynamics are so
strong, and the low-level wind shear so abundant, that the existing
Marginal west to Enhanced east gradient of severe threat looks well
placed for today into this evening. Improving updraft helicity on
the mesoscale models will arrive in the southwest mountains before
daybreak, but better organization seems likely over the eastern half
from 16Z onward as the low-level jet ramps up to 50 to 60 kt. Strong
to severe discrete activity will be possible through the morning
hours, but the pre-frontal line should sharpen up through the day as
mesolows move up the frontal boundary to pose the greatest severe
risk through the afternoon hours, perhaps into the early evening
across I-77.

Anticipate a late evening fropa across the mountains, with the
boundary moving east across the piedmont overnight. Snow levels will
fall from the west through daybreak Friday, with light accumulations
most likely along the higher ridges around the Smokies. Winds will
be gusty through the period, both on the warm advection side today
and the cold advection side tonight, but with gusts generally below
advisory levels (30 to 40 mph) at all but the highest peaks.

&&

.SHORT TERM /FRIDAY THROUGH SUNDAY NIGHT/...
As of 255 AM EST Thursday: With the cold front east of the region by
Friday morning, colder air will continue to spill across the
mountains, with 850 mb temperatures bottoming out at minus 6 or
colder along the spine of the southern Appalachians. Although the
low-level flow will be a less favorable westerly direction for
upslope, orographic lift will still wring out snow showers through
the day, with some high elevations in and around the Smokies seeing
possibly 2 to 4 inches of snow by Friday evening. Accumulations will
be quite terrain dependent, with Advisory or greater snow amounts
limited to mainly above 4000 feet, and very little in the lower
valleys. Will mention in the HWO, but hold off on any Advisories at
present. A brief lull in the moisture is expected on Friday night.
Temperatures will return to below climo values during the period.

The latest model runs continue to show the development of weak low
pressure on Saturday morning as a strong short wave drops down
across the TN Valley into the base of the long wave trof across the
eastern US. The models have shown good run-to-run continuity with
this peculiar feature, blowing up precip over the mtns early in the
day and then moving it slowly off to the E/NE, but the recent trend
is toward lower precip amts possibly because the sfc low looks more
like it will be moving over the OH Valley region on Saturday. It is
worth noting, however, that the operational GFS continues to run at
the low end of the GEFS distribution. The fcst is interesting
because partial thickness remains rather low, the boundary layer
rather cool to start with at onset, and the fcst soundings showing
wet bulb profiles that would support all snow at onset across the
mtns. Eventually, warming takes place in the valleys, but not before
we might get a few hours of light snow, especially if the NAM is
correct. Elevations above about 3k feet would be likely to stay snow
for the duration. Because the QPF has come down in the operational
model guidance, present indications are for an Advisory-level event,
but if we end up closer to the ensemble mean, we could push Warning
criteria at elevations above 3500 feet by Saturday afternoon. East
of the mtns, if the precip can begin early enough in the day, it
could begin as a period of light snow, before an eventual changeover
to rain. This would be somewhat similar to what transpired last
Friday, but the amounts this time would be much less. However, the
latest trend was also to delay the onset by a few hours outside the
mtns. This system lifts out Saturday evening and precip pares back
to the NW flow upslope areas by late evening, and then ends by
daybreak Sunday. Temps should be below normal for this period.

The rest of the weekend should be quiet and dry as a flat upper
ridge moves overhead Sunday, pushing high pressure past, then off
the Mid-Atlantic Coast Sunday night. Temperatures should return
to normal. The moisture associated with the next front is not
expected to arrive before daybreak Monday.

&&

.LONG TERM /MONDAY THROUGH WEDNESDAY/...
As of 327 AM EST Thursday: Fcst confidence starts out decent on
Monday morning with the models in general agreement that another
frontal boundary will gradually sag down across the fcst area as
the upper flow slowly goes WSW under a low amplitude trof/ridge
pattern. This system is not expected to have nearly the same
benefit of moisture flux from the Gulf as our current event,
but there should be enough forcing and deep moisture to afford a
likely precip probability ramping up Monday and then continuing into
Tuesday while the front stalls against the WSW flow aloft. Temps
should be warm enough...about 5-10 deg above normal...that it
should be all rain. Confidence plummets dramatically beyond
Tuesday. The op GFS has a stronger short wave coming through
the nrn stream which develops a stronger frontal wave that lifts
out Tuesday. Because the wave is stronger, the flow amplifies an
eastern trof which drives the front through and we dry out for
the middle of the week, until a srn stream wave ejects and brings
moisture and precip back from the SW for Thursday. Meanwhile, the
ECMWF remains more low amplitude and keeps the frontal boundary
stalled across our region right through the end of the period,
with another wave on Thursday. For the time being, we lean toward
the ECMWF solution, which makes for another wet week with fairly
high precip probs. But, again, confidence beyond Tuesday is low.

&&

.AVIATION /09Z THURSDAY THROUGH MONDAY/...
At KCLT and Elsewhere: Anticipate cigs quickly settling down into
the IFR range throughout as the heavier rainfall begins to spread
in, with mainly MVFR visibility except IFR in the heaviest
downpours. More solid LIFR conditions should develop through the day
as the stronger forcing and very deep moisture move overhead.
Anticipate a sharp uptick in south to southwesterly gusts. Low-level
wind shear will be possible at all sites from time to time today as
the low-level jet continues to ramp up. Will focus TSRA chances
mostly on the pre-frontal developing line from late morning through
the afternoon hours. Very little improvement is expected under the
fropa moves through the region just after the current TAF period.

Outlook: Northwest flow may persist near KAVL, but drying is
possible elsewhere through Friday. A system will move through the
region on Saturday, with brief restrictions possible, before drying
returns on Sunday.

Confidence Table...

            08-14Z        14-20Z        20-02Z        02-06Z
KCLT       Low   47%     Med   68%     High  91%     Low   51%
KGSP       Med   65%     Med   73%     Med   77%     Med   71%
KAVL       High  82%     Med   72%     Med   69%     Med   71%
KHKY       Med   73%     High  80%     Med   77%     Med   71%
KGMU       Med   66%     High  82%     Med   79%     High  89%
KAND       Low   55%     Med   72%     Med   64%     High  87%

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 through this evening for GAZ010-017.
     Flash Flood Watch through this evening for GAZ018-026-028-029.
NC...Flash Flood Watch through this evening for NCZ033-048>053-058-
     059-062>065-501-503-505-507-509.
     Flash Flood Watch through this evening for NCZ035>037-056-057-
     068>072-082-502-504-506-508-510.
SC...Flash Flood Watch through this evening for SCZ001>014-019.

&&

SYNOPSIS...HG
NEAR TERM...HG
SHORT TERM...HG/PM
LONG TERM...PM
AVIATION...HG
Hazardous weather outlook, Feb 6, 4:00 AM EST, 1 hour 40 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
400 AM EST Thu Feb 6 2020

GAZ018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-506-508-
510-SCZ001>014-019-070900-
Stephens-Franklin-Hart-Elbert-Alexander-Iredell-Davie-Catawba-Rowan-
Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Greater Caldwell-Greater Burke-Eastern McDowell-Greater Rutherford-
Eastern Polk-Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
400 AM EST Thu Feb 6 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for northeast Georgia, the
foothills and Piedmont of western North Carolina, and Upstate South
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.

Scattered to numerous thunderstorms are also expected to develop
across the region today through this evening ahead of an advancing
cold front. Some of the thunderstorms may well become strong to
severe, with damaging wind gusts possible in addition to cloud to
ground lightning. A few brief, isolated tornadoes will be possible,
especially along and southeast of Interstate 85 this afternoon and
evening. Plan now for the actions that you will take if Severe
Thunderstorm or Tornado Watches or Warnings are issued today. This is
especially important if you in a mobile home. Make arrangements now
to flee quickly to a nearby, sturdier structure if warnings are
issues for your location.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509-070900-
Rabun-Habersham-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-
Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Caldwell Mountains-Burke Mountains-McDowell Mountains-
Rutherford Mountains-Polk Mountains-
400 AM EST Thu Feb 6 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for the mountains of 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.

Scattered thunderstorms are also expected to develop across the
region today ahead of an advancing cold front. Some of the
thunderstorms may become strong to severe, with damaging wind gusts
possible in addition to cloud to ground lightning. A brief, isolated
tornado cannot be ruled out.

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

Snow showers will develop behind the departing cold front late
tonight through Friday. Light snow accumulations are expected across
the mountains, especially at elevations above 3500 feet where a
couple of inches will be possible. Two to four inches of snow will be
possible along the highest ridge tops around the Great Smoky
Mountains.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

HG

In the hours before

Special weather statement, Feb 5, 11:43 PM EST, 5 hours 57 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1143 PM EST Wed Feb 5 2020

NCZ048-049-051>053-060530-
Buncombe NC-Haywood NC-Yancey NC-Swain NC-Madison NC-
1143 PM EST Wed Feb 5 2020

...STRONG THUNDERSTORMS WILL IMPACT MADISON...NORTHEASTERN SWAIN...
NORTHERN HAYWOOD...NORTHWESTERN BUNCOMBE AND WEST CENTRAL YANCEY
COUNTIES UNTIL 1230 AM EST...

At 1142 PM EST, Doppler radar indicated strong thunderstorms along a
line extending from 9 miles east of Morristown to 8 miles east of
Newport to 20 miles west of Marshall to 13 miles east of Gatlinburg,
and moving east at 45 mph.

Locations to be impacted include...
Marshall, Mars Hill, Hot Springs, Smoky Mountains-Cataloochee,
Leicester, Smoky Mountains-Big Creek, Weaverville, Woodfin, Smoky
Mountains-Balsam Mountain and Waterville.

Wind gusts up to 45 mph and very heavy rainfall rates up to 2 inches
per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.

&&

LAT...LON 3603 8259 3600 8261 3597 8261 3595 8256
      3600 8248 3582 8240 3556 8274 3565 8333
      3579 8308 3578 8299 3584 8292 3587 8292
      3588 8290 3593 8292 3595 8287 3593 8281
      3597 8278 3600 8278 3606 8264
TIME...MOT...LOC 0442Z 276DEG 39KT 3616 8314 3601 8305 3580 8305 3569
8325

MOORE
Special weather statement, Feb 6, 12:20 AM EST, 5 hours 20 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1220 AM EST Thu Feb 6 2020

NCZ048>050-053-505-060545-
Buncombe NC-McDowell Mountains NC-Yancey NC-Madison NC-Mitchell NC-
1220 AM EST Thu Feb 6 2020

...STRONG THUNDERSTORMS WILL IMPACT WESTERN MCDOWELL...EASTERN
MADISON...MITCHELL...BUNCOMBE AND YANCEY COUNTIES UNTIL 1245 AM
EST...

At 1219 AM EST, Doppler radar indicated strong thunderstorms along a
line extending from 18 miles west of Burnsville to 5 miles east of
Marshall to 9 miles northwest of Downtown Asheville, and moving east
at 40 mph.

Locations to be impacted include...
Downtown Asheville, Spruce Pine, Burnsville, East Asheville, West
Asheville, North Asheville, Black Mountain, Woodfin, Swannanoa and
Weaverville.

Wind gusts up to 45 mph and very heavy rainfall rates up to 2 inches
per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

&&

LAT...LON 3614 8218 3615 8215 3611 8213 3610 8208
      3573 8201 3552 8221 3552 8223 3548 8225
      3561 8278 3579 8263 3605 8268 3606 8263
      3603 8259 3597 8261 3595 8256 3601 8246
      3611 8237 3614 8229 3613 8225 3616 8220
TIME...MOT...LOC 0519Z 277DEG 36KT 3593 8263 3579 8259 3567 8270

MOORE
Special weather statement, Feb 6, 5:23 AM EST, 17 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
523 AM EST Thu Feb 6 2020

SCZ014-061100-
Chester SC-
523 AM EST Thu Feb 6 2020

...A STRONG THUNDERSTORM WILL IMPACT EASTERN CHESTER COUNTY UNTIL 600
AM EST...

At 523 AM EST, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Chester, or near Blackstock, moving northeast at
55 mph.

Locations to be impacted include...
Great Falls, Fort Lawn, Richburg, Blackstock, Fishing Creek Reservoir
and Cornwell.

Wind gusts up to 45 mph and very heavy rainfall rates up to 2 inches
per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm 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 3467 8089 3464 8090 3462 8089 3460 8089
      3456 8087 3454 8088 3456 8126 3482 8092
      3482 8090 3479 8088 3475 8088 3470 8086
TIME...MOT...LOC 1023Z 230DEG 47KT 3455 8112

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 6, 5:23 AM ESTSpecial Weather StatementGSPChester37 min
Feb 6, 5:51 AM ESTSpecial Weather StatementGSPGreenville24 min
Feb 6, 5:59 AM ESTFlash Flood WarningGSPGreenville13 hr
Feb 6, 7:44 AM ESTFlash Flood WarningGSPSpartanburg12 hr
Feb 6, 8:27 AM ESTAreal Flood AdvisoryGSPAnderson101 min
Feb 6, 9:01 AM ESTSevere Thunderstorm WarningGSPGreenville, Spartanburg44 min
Feb 6, 9:15 AM ESTRiver Flood WarningGSPGreenville, Pickens50 hr
Feb 6, 10:03 AM ESTFlash Flood WarningGSPAnderson, Greenville, Pickens9 hr
Feb 6, 10:24 AM ESTTornado WarningGSPCherokee, Spartanburg20 min
Feb 6, 10:27 AM ESTAreal Flood AdvisoryGSPCherokee, Union, York14 hr
Feb 6, 10:28 AM ESTTornado WarningGSPAnderson17 min
Feb 6, 10:46 AM ESTSevere Thunderstorm WarningGSPCherokee, York59 min
Feb 6, 10:48 AM ESTTornado WarningGSPAnderson, Greenville, Laurens27 min
Feb 6, 11:04 AM ESTFlash Flood Warning EmergencyCatastrophic damage threatGSPPickens12 hr
Feb 6, 11:08 AM ESTTornado WarningGSPAbbeville, Anderson37 min
Feb 6, 11:15 AM ESTTornado WarningGSPGreenville, Laurens, Spartanburg30 min
Feb 6, 11:37 AM ESTTornado WarningGSPLaurens23 min
Feb 6, 11:43 AM ESTAreal Flood AdvisoryGSPAbbeville, Greenville, Greenwood, Laurens, Spartanburg, Union5 hr
Feb 6, 11:45 AM ESTAreal Flood AdvisoryGSPAbbeville, Greenville, Greenwood, Laurens, Spartanburg, Union5 hr
Feb 6, 11:51 AM ESTRiver Flood AdvisoryGSPCherokee, York12 hr
Feb 6, 11:59 AM ESTTornado WarningGSPLaurens31 min
Feb 6, 12:02 PM ESTSevere Thunderstorm WarningGSPYork43 min
Feb 6, 12:11 PM ESTAreal Flood AdvisoryGSPChester, York3 hr
Feb 6, 12:47 PM ESTSevere Thunderstorm WarningGSPAbbeville, Anderson, Greenwood28 min
Feb 6, 12:59 PM ESTSevere Thunderstorm WarningGSPAbbeville, Anderson, Greenville, Greenwood, Laurens46 min
Feb 6, 1:24 PM ESTTornado WarningGSPAbbeville, Greenwood51 min
Feb 6, 1:27 PM ESTFlash Flood WarningGSPAbbeville, Greenwood8 hr
Feb 6, 1:38 PM ESTSevere Thunderstorm WarningGSPLaurens37 min
Feb 6, 1:54 PM ESTFlash Flood WarningGSPChester, Laurens, Union, York6 hr
Feb 6, 2:20 PM ESTSevere Thunderstorm WarningGSPChester40 min
Feb 6, 3:10 PM ESTRiver Flood WarningGSPAnderson, Greenville48 hr
Feb 6, 3:11 PM ESTFlash Flood Warning EmergencyCatastrophic damage threatGSPGreenville6 hr
Feb 6, 3:18 PM ESTRiver Flood WarningGSPCherokee, York37 hr
Feb 6, 6:55 PM ESTFlash Flood WarningGSPGreenville2 hr

Nearby

Flash Flood Warnings in South Carolina, 2020Every flash flood warning in 2020

Sources

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