High Surf Advisory issued September 23 at 3:33AM EDT until September 23 at 4:00AM EDT by NWS
...HIGH SURF ADVISORY WILL EXPIRE AT 4 AM EDT EARLY THIS MORNING...Lake Wind Advisory issued September 22 at 5:02PM EDT until September 23 at 8:00AM EDT by NWS
...LAKE WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT SATURDAY... * WHAT...North winds 15 knots with gusts up to 30 knots expected. * WHERE...Sumter, Clarendon and Southeastern Orangeburg Counties. * WHEN...From 8 PM this evening to 8 AM EDT Saturday. * IMPACTS...Strong winds and rough waves on area lakes willLake Wind Advisory issued September 22 at 5:02PM EDT until September 23 at 12:00PM EDT by NWS
...LAKE WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON EDT SATURDAY... * WHAT...North winds 15 to 20 knots with gusts of 30 to 35 knots expected. * WHERE...Portions of central South Carolina. * WHEN...From 8 PM this evening to noon EDT Saturday.
SPC Sep 22, 2023 0730 UTC Day 3 Severe Thunderstorm Outlook
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0219 AM CDT Fri Sep 22 2023 Valid 241200Z - 251200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN PLAINS... ...SUMMARY... Thunderstorms, associated with large hail and wind damage, will be possible on Sunday from parts of central Texas northeastward into southeast Oklahoma. ...Southern Plains/Ark-La-Tex... A shortwave trough is forecast to move eastward across the southern Plains on Sunday. A cold front will likely advance southward into west-central and north Texas by afternoon. Warming surface temperatures ahead of the front will result in moderate to strong destabilization by afternoon, with MLCAPE expected to peak in the 2000 to 3000 J/kg range in many areas south of the front. As instability and low-level convergence increase near the front, scattered thunderstorms will likely form in the mid to late afternoon. These storms will move southeastward into the stronger instability across north-central and northeast Texas, with several cell clusters persisting into the early to mid evening. Forecast soundings by 00Z/Monday near and to the southwest of the Dallas/Fort Worth Metroplex show moderate deep-layer shear and steep low to mid-level lapse rates. The moderate deep-layer shear is mostly due to mid-level speed shear, although some directional shear is evident in the low levels. 700-500 mb lapse rates are forecast to be near 8 C/km. This environment should support supercells associated with isolated large hail. Large temperature-dewpoint spreads will result in high storm bases, and a nearly adiabatic lapse rate below 850 mb will contribute to downdraft acceleration. As a result, a wind-damage threat is also expected to develop during the late afternoon and early evening. The cold front is forecast to be a bit faster than some of the model solutions are suggesting. For this reason, the faster model solutions are favored and the slight risk has been placed accordingly. ..Broyles.. 09/22/2023Read more
SPC – No MDs are in effect as of Fri Sep 22 07:22:02 UTC 2023
No Mesoscale Discussions are in effect as of Fri Sep 22 07:22:02 UTC 2023.SPC – No watches are valid as of Fri Sep 22 07:22:02 UTC 2023
No watches are valid as of Fri Sep 22 07:22:02 UTC 2023.
SPC Day 2 Fire Weather Outlook
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0130 AM CDT Fri Sep 22 2023 Valid 231200Z - 241200Z ...NO CRITICAL AREAS... ...Synopsis... Fire weather concerns should remain fairly localized for Saturday along the High Plains. A surface low and an attendant surface trough are forecast to deepen as they migrate east across the Plains on Saturday. This will establish a zonal flow regime across much of the Rockies and High Plains by late morning. Downslope warming/drying along the CO Front Range and in the lee of the Sangre de Cristo and Sandia/Manzano Mountains, augmented by diurnal heating, should promote areas of 15-25% RH as winds increase to 15-20 mph (with locally drier/windier in terrain-favored locations). Somewhat meager mid to upper-level winds should confine the strongest surface winds close to terrain features - with the exception of southeast WY into adjacent portions of NE/northeast CO where surface gradient winds will be stronger. This, combined with somewhat marginal fuel status outside of far northeast NM and southern CO, will limit the coverage of elevated conditions and the overall fire weather threat. ..Moore.. 09/22/2023 ...Please see www.spc.noaa.gov/fire for graphic product...Read more

SPC Sep 22, 2023 0600 UTC Day 2 Convective Outlook
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Sep 22 2023 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE GREAT PLAINS...AND LOWER TO MID MISSOURI VALLEY... ...SUMMARY... Thunderstorms, associated with large hail and wind damage, will be possible on Saturday across eastern parts of the Great Plains, and in the Lower to Mid Missouri Valley. Marginally severe storms will also be possible in parts of the Mid-Atlantic. ...Great Plains/Lower to Mid Missouri Valley... An upper-level low will move northeastward across the northern Plains on Saturday as an associated mid-level jet moves through the base of the trough. At the surface, a low will move quickly northward from eastern Nebraska into western Minnesota, as a cold front moves eastward through the central Plains. As surface heating takes place ahead of the front, scattered thunderstorms are expected to develop from parts of the eastern Dakotas south-southeastward into parts of the lower to mid Missouri Valley. Cell coverage will gradually increase in the late afternoon and early evening, with MCS development likely across parts of the region. By midday, a north-to-south corridor of moderate instability will likely be in place from eastern Kansas northward into eastern Nebraska, where MLCAPE is forecast to peak in the 1500 to 2500 J/kg range. Moderate to strong deep-layer shear will also be present along this corridor, with the strongest shear located beneath the mid-level jet in the mid Missouri Valley. The thermodynamic and kinematic environment should support supercell development, with the greatest supercell threat located from near the axis of the jet southward. This is forecast to be in far eastern Nebraska and western Iowa, where the combination of instability and shear is forecast to be the greatest. Supercells will have a threat for large hail and wind damage. Further north into parts of eastern South Dakota and western Minnesota, there is some uncertainty concerning how much instability will develop. The more aggressive solutions with instability suggest that supercells will be possible with a threat for large hail and wind damage. Because of the uncertainty concerning instability, the slight risk over far eastern South Dakota and southwest Minnesota is more conditional. ...Southern Plains... At mid-levels, west-southwesterly flow will be in place on Saturday across much of the Desert Southwest and southern Rockies, with northwesterly divergent flow located over much of the southern Plains. At the surface, a cold front will advance southeastward into the southern High Plains. Isolated to scattered thunderstorms are expected to form along and near the front by afternoon, as moderate to strong instability develops. Several storm clusters appear likely to become organized in the late afternoon, persisting into the early to mid evening. Forecast soundings ahead of the front, from Oklahoma City to Wichita Falls, suggest that MLCAPE will peak in the 2000 to 3000 J/kg range during the late afternoon. 0-6 km shear is forecast to be in the 35 to 45 knot range, with 700-500 mb lapse rates near 7.5 C/km. This environment will likely support supercells with large hail. Wind damage may also occur, especially with mixed mode cell clusters that become organized. The severe threat from far southern Oklahoma to west-central Texas will likely be marginal, due to a lack of large-scale ascent. ...Mid-Atlantic... A tropical system is forecast by the National Hurricane Center to move through eastern North Carolina on Saturday. To the east of the center, instability is forecast to increase during the day from eastern north Carolina into eastern Virginia. A marginal tornado threat may develop with bands of convection that move through the stronger instability. ..Broyles.. 09/22/2023Read more

SPC Day 1 Fire Weather Outlook
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1249 AM CDT Fri Sep 22 2023 Valid 221200Z - 231200Z ...Synopsis... Areas of elevated fire weather conditions are probable this afternoon across a broad swath of the Four Corners region and into the Front Range of southern CO and northeast NM, though fuel status will be a limiting factor across much of this region. Early-morning low-level water vapor imagery depicts a plume of drier low to mid-level air from southern CA to northeast AZ on the southern periphery of a upper low over the northern Great Basin. 00Z soundings within this dry plume sampled average RH in the 850-700 mb layer around 20-30%. This dry air mass is expected to spread north across much of the Four Corners over the next 12-24 hours, and should mix to the surface amid deep diurnal heating/mixing. The combination of dry air advection, diurnal warming, and downslope warming/drying in the lee of terrain features will support widespread RH reductions into the low teens with 15-20 mph winds. Recent ensemble guidance shows reasonably good consensus for this scenario, but latest ERC analyses suggests that fuels across much of the region are not currently receptive. Local fuel reports from northeast NM into southeast CO suggest that fuels are regionally drier and may support a fire weather concern. Consequently, highlights are maintained across this region where the fire weather threat is higher. ..Moore.. 09/22/2023 ...Please see www.spc.noaa.gov/fire for graphic product...Read more

SPC Sep 22, 2023 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Sep 22 2023 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE NORTHERN AND CENTRAL HIGH PLAINS...AND OVER THE SOUTHERN COASTAL MIDDLE ATLANTIC... ...SUMMARY... Severe thunderstorms are possible across parts of the central and northern High Plains, mainly this afternoon and this evening. A few tornadoes are also possible along the Mid-Atlantic Coast early Saturday morning in association with the approaching potential tropical system. ...Northern/Central High Plains... Strong upper low that has settled into the northern Great Basin will advance into western WY by late afternoon as a 70kt 500mb speed max rotates through the base of the trough to near WY/UT/CO border by 23/00z. Seasonally cold mid-level temperatures (-20C at 500mb beneath the upper low) will spread east in association with this feature, and the exit region of aforementioned jet will overspread the High Plains of eastern WY by early afternoon. Latest model guidance suggests boundary-layer flow will remain decidedly easterly across NE and the Dakotas into eastern WY. As a result, strongest boundary-layer heating will be noted across the higher plateau region of WY immediately ahead of the approaching trough. Forecast soundings suggest convective temperatures will be breached by 19z, and thunderstorms should develop shortly thereafter. Soundings across eastern WY exhibit substantial SBCAPE with steep lapse rates through 8km. NAM 21z forecast sounding for LUS strongly favors supercells with 60kt surface-6km bulk shear. Very large hail may accompany some of this activity as it spreads toward the southern Black Hills region/northwestern NE. Additionally, relatively moist boundary-layer conditions and low LFCs suggest some tornado threat. It's not clear how far this activity will spread east before weakening, as the updrafts will likely decouple from the boundary layer due to much cooler surface temperatures and weaker low-level lapse rates. For this reason have focused higher severe probabilities across the High Plains where stronger surface heating is expected. ...Potential Tropical Cyclone Sixteen... PTC 16, currently located well southeast of the Carolina Coast, is forecast to move north-northwest over the next 24hr, likely intensifying as it approaches the NC Coast early Saturday. As this system intensifies, low-level shear will increase markedly across the southern Middle Atlantic Coast. Probabilities for supercells will increase late, especially after 06Z, along with some risk for tornadoes, primarily east of the low track. Reference https://www.nhc.noaa.gov for more information on this developing system. ..Darrow/Moore.. 09/22/2023Read more

Severe Thunderstorm Warning
This is an automatic message WUUS52 KGSP 150312
SVRGSP
NCC045-071-109-SCC021-091-150400-
/O.NEW.KGSP.SV.W.0024.190415T0312Z-190415T0400Z/
BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
1112 PM EDT Sun Apr 14 2019
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for…
Eastern Lincoln County in the Piedmont of North Carolina…
Southeastern Cleveland County in the Piedmont of North Carolina…
Gaston County in the Piedmont of North Carolina…
Northwestern York County in Upstate South Carolina…
Northeastern Cherokee County in Upstate South Carolina…
* Until midnight EDT.
* At 1112 PM EDT, severe thunderstorms were located along a line
extending from near Shelby to 19 miles west of Gastonia to 6 miles
east of Gaffney, moving east at 35 mph.
HAZARD…60 mph wind gusts.
SOURCE…Radar indicated.
IMPACT…Expect damage to trees and power lines.
* Locations impacted include…
Gastonia, Shelby, Kings Mountain, Mt Holly, Belmont, Cherryville,
Bessemer City, South Gastonia, Clover and Dallas.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.
These storms are also producing extremely heavy rainfall. Flooding of
drainage ditches and low lying areas may occur. Small streams will
rise rapidly. Do not drive through areas where water is flowing over
the road.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
A Tornado Watch remains in effect until 500 AM EDT for the Piedmont
of North Carolina…and Upstate South Carolina.
LAT…LON 3535 8097 3530 8100 3527 8102 3517 8100
3515 8101 3514 8105 3510 8103 3509 8106
3495 8165 3515 8157 3530 8163 3555 8106
3555 8096 3550 8096 3549 8095 3545 8094
3543 8096 3539 8095 3537 8099 3536 8092
TIME…MOT…LOC 0312Z 248DEG 32KT 3526 8153 3518 8150 3504 8155
TORNADO…POSSIBLE
HAIL…<.75IN
WIND...60MPH
$$
HG

Severe Thunderstorm Warning
This is an automatic message WUUS52 KGSP 150215
SVRGSP
SCC045-059-083-150300-
/O.NEW.KGSP.SV.W.0022.190415T0215Z-190415T0300Z/
BULLETIN – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
1015 PM EDT Sun Apr 14 2019
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for…
Northwestern Laurens County in Upstate South Carolina…
East central Greenville County in Upstate South Carolina…
Central Spartanburg County in Upstate South Carolina…
* Until 1100 PM EDT.
* At 1015 PM EDT, a severe thunderstorm was located 14 miles
southeast of Greenville Downtown, or 4 miles southeast of Five
Forks, moving east at 40 mph.
HAZARD…60 mph wind gusts.
SOURCE…Radar indicated.
IMPACT…Expect damage to trees and power lines.
* Locations impacted include…
Spartanburg, Simpsonville, Five Forks, Fountain Inn, Woodruff,
Pacolet, Cowpens, Roebuck, Pacolet Mills and Reidville.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.
This storm is also producing extremely heavy rainfall. Flooding of
drainage ditches and low lying areas may occur. Small streams will
rise rapidly. Do not drive through areas where water is flowing over
the road.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
A Tornado Watch remains in effect until 500 AM EDT for Upstate South
Carolina.
LAT…LON 3463 8224 3482 8228 3503 8180 3499 8177
3493 8176 3493 8174 3491 8172 3483 8179
3461 8185
TIME…MOT…LOC 0215Z 250DEG 35KT 3476 8216
TORNADO…POSSIBLE
HAIL…<.75IN
WIND...60MPH
$$
HG

Tornado Warning
This is an automatic message WFUS52 KGSP 150116
TORGSP
SCC007-150145-
/O.NEW.KGSP.TO.W.0010.190415T0116Z-190415T0145Z/
BULLETIN – EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
916 PM EDT Sun Apr 14 2019
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for…
Central Anderson County in Upstate South Carolina…
* Until 945 PM EDT.
* At 916 PM EDT, a severe thunderstorm capable of producing a tornado
was located 10 miles southwest of Anderson, or near Lake Hartwell,
moving northeast at 35 mph.
HAZARD…Tornado.
SOURCE…Radar indicated rotation.
IMPACT…Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near…
Anderson, Northlake, Anderson Airport and Homeland Park around 930
PM EDT.
Belton around 940 PM EDT.
Other locations impacted by this dangerous thunderstorm include Sandy
Springs, Sadlers Creek State Park and Broadway Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
LAT…LON 3437 8284 3444 8286 3447 8287 3449 8291
3448 8292 3449 8293 3475 8252 3467 8246
3462 8245 3459 8242 3456 8242 3454 8239
3451 8237 3435 8281
TIME…MOT…LOC 0116Z 238DEG 31KT 3446 8281
TORNADO…RADAR INDICATED
HAIL…<.75IN
$$
HG

Tornado Warning
This is an automatic message WFUS52 KGSP 150041
TORGSP
NCC089-175-SCC045-077-150115-
/O.NEW.KGSP.TO.W.0009.190415T0041Z-190415T0115Z/
BULLETIN – EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
841 PM EDT Sun Apr 14 2019
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for…
Southeastern Transylvania County in western North Carolina…
South central Henderson County in western North Carolina…
Northwestern Greenville County in Upstate South Carolina…
Northwestern Pickens County in Upstate South Carolina…
* Until 915 PM EDT.
* At 841 PM EDT, a severe thunderstorm capable of producing a tornado
was located 11 miles northwest of Pickens, or 5 miles northeast of
Jocassee Gorges, moving northeast at 40 mph.
HAZARD…Tornado.
SOURCE…Radar indicated rotation.
IMPACT…Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near…
Table Rock State Park around 850 PM EDT.
Caesars Head State Park and Dupont State Forest around 900 PM EDT.
Jones Gap State Park and Pleasant Ridge State Park around 910 PM
EDT.
Other locations impacted by this dangerous thunderstorm include
Sunset, Pumpkintown, Little River In Transylvania County, Connestee
and Crab Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
LAT…LON 3532 8258 3509 8239 3489 8283 3501 8293
3501 8291 3502 8292 3503 8292 3505 8290
3504 8296
TIME…MOT…LOC 0041Z 237DEG 35KT 3502 8281
TORNADO…RADAR INDICATED
HAIL…<.75IN
$$
HG