
SPC Feb 4, 2023 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Sat Feb 04 2023 Valid 041630Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Northern CA... A shortwave impulse embedded within a broader northeast Pacific upper trough will impinge on the northern half of the CA coast tonight. The warm conveyor region ahead of this wave will yield an eastward-moving precipitation band crossing the coast this evening and into the Sierras tonight. Scant elevated buoyancy may develop within the upslope flow regime along the western Sierras and support very isolated thunderstorms. Otherwise, cooling mid-level temperatures and steepening lapse rates will foster scant surface-based instability along the northern CA coast in the early morning. Isolated thunderstorms will be possible; embedded within scattered, post-frontal low-topped convection. ...Southeast FL... Very poor mid-level lapse rates of 4-5 C/km sampled in 12Z observed soundings will curtail thunderstorm potential today. Low-level flow will shift from east-northeasterlies to southeasterlies tonight and result in gradual moistening. This should support scattered low-topped showers overnight with perhaps a thunderstorm or two in the early morning. ..Grams/Lyons.. 02/04/2023Read more

SPC Day 1 Fire Weather Outlook
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0931 AM CST Sat Feb 04 2023 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... The previous forecast (see below) remains on track, with no changes or additions made. ..Squitieri.. 02/04/2023 .PREV DISCUSSION... /ISSUED 0159 AM CST Sat Feb 04 2023/ ...Synopsis... A low-amplitude shortwave trough will track eastward from the central/southern Plains into the middle MS Valley, while a weak cold front moves southward across the southern High Plains. Modest downslope warming/drying and breezy surface winds in the vicinity of the front could yield locally elevated conditions over portions of the southern High Plains during the afternoon. However, the stronger surface winds will generally be displaced east of the more substantial RH reductions -- precluding Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product...Read more

SPC Feb 4, 2023 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0643 AM CST Sat Feb 04 2023 Valid 041300Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today. ...South Florida... Weak height rises will occur today as low-level easterlies will tend to maintain a semi-moist air mass across the region with scattered convection for much of the period. The proximity of the stalled/slow-moving surface front, and aforementioned semi-moist/weakly unstable air mass, may allow for isolated thunderstorms near the coastal southeast Florida Peninsula, Keys, and Florida Straits. Robust thunderstorms are unlikely given thermodynamic profiles characterized by weak lapse rates/buoyancy. ...Northern California... An eastward-progressive shortwave trough will reach coastal portions of northern California and Oregon late tonight. Increasing moisture and steepening mid-level lapse rates will support some potential for isolated thunderstorms near/behind the inland-moving frontal band. These thunderstorms will be possible initially near coastal areas/offshore waters as early as this evening, and potentially across interior northern California/Sierras late tonight and early Sunday. Severe thunderstorms are unlikely given weak overall buoyancy and residual cool boundary layer air. ..Guyer/Leitman.. 02/04/2023Read 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