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SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1150 PM CST Mon Nov 20 2023 Valid 211200Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTHERN ALABAMA AND THE WESTERN FLORIDA PANHANDLE AND SOUTHWEST GEORGIA... ...SUMMARY... A few tornadoes are possible across south Alabama and the Florida Panhandle, mainly during the morning into the afternoon. The potential for locally damaging winds and a couple brief tornadoes will shift farther north and east this afternoon into early morning Wednesday across most of Georgia, the Carolinas, and far southern Virginia. ...Southeastern US... Latest satellite imagery suggests center of upper low is located near JLN. This feature is forecast to eventually dig southeast toward the mid-South as a secondary 500mb speed max translates southeast across eastern OK into southern AR by the end of the period. Immediately downstream, a corridor of strong midlevel flow will extend across the lower MS Valley into the middle Atlantic. 00z model guidance suggests modest height falls will develop ahead of this trough with values approaching 90m in 12hr, especially across the northern middle Atlantic region. In response to this trough, a weak surface low will advance across the OH Valley into southeast lower MI by late afternoon; however, a secondary surface low should evolve along the southern fringe of the Appalachians then track northeast into the Delmarva by 22/12z. This secondary surface low will prove instrumental in allowing modified air mass to advance across the Carolinas during the latter half of the period, with even weak buoyancy likely developing farther north during the overnight hours. Late this evening, an extensive corridor of deep convection has evolved within a strongly diffluent high-level flow regime from western AL-southern MS-southeast LA-western Gulf Basin. This corridor should progress steadily east through sunrise and likely extend across much of AL into the MS delta region by the start of the period. Strong deep-layer flow/shear will support organized convection, and embedded supercells are likely along this band. Forecast soundings at the start of the period exhibit MLCAPE in excess of 500 J/kg within a very moist and poor-lapse rate-environment. NAM soundings for PNS and GZH at 12z display 0-3km SRH between 400-700 m2/s2. Large-scale forcing should encourage an organized band of convection to migrate east, but this activity should weaken a bit downstream as it encounters less buoyancy and weaker forcing over northern FL/southeast GA. During the latter half of the period, primarily after 06z, boundary-layer recovery is expected across coastal Carolinas such that buoyancy will become more supportive of deep updrafts. Strong shear will favor organized convection, along with some supercell potential. Forecast soundings are quite moist with poor lapse rates through 9km. This will limit instability but isolated damaging winds and/or a tornado seem possible with this activity. ..Darrow/Lyons.. 11/21/2023 Read more

MD 2280 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR SOUTHERN MISSISSIPPI INTO PARTS OF EASTERN LOUISIANA
Mesoscale Discussion 2280 NWS Storm Prediction Center Norman OK 1153 PM CST Mon Nov 20 2023 Areas affected...southern Mississippi into parts of eastern Louisiana Concerning...Severe potential...Watch possible Valid 210553Z - 210730Z Probability of Watch Issuance...40 percent SUMMARY...A few strong may produce strong gusts or even a brief tornado, but the overall threat in the near term is not expected to warrant an additional watch. DISCUSSION...Storms have aggregated into a broken line from southern MS into southeast LA, with indications of gusts winds at times. Little rotation or supercell structures have been observed in the past hour, likely due to gradually veering low-level winds and decreasing ascent overall. Effective SRH around 300 m2/s2, a moist boundary layer and 500-1000 J/kg MLCAPE still may yield a supercell, but perhaps short lived, with brief tornado potential. However, the overall threat does not appear high enough for an additional tornado watch at this time. Given the moist air mass and 40-50 kt low-level jet, convective trends will continue to be monitored for any increase in intensity overnight. ..Jewell.. 11/21/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MOB...JAN...LIX...LCH... LAT...LON 29729121 29909118 30809039 31518967 31848942 32058893 32018860 31778833 31338816 30998826 30558861 29958960 29759061 29739114 29729121 Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HEZ TO 55 NNE MCB TO 45 E GWO. ..LYONS..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210340- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-019-023-029-031-035-037-061-065-067-069-073-075-077- 079-085-091-099-101-103-109-113-121-123-127-129-147-157-159- 210340- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE CHOCTAW CLARKE COPIAH COVINGTON FORREST FRANKLIN JASPER JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE LINCOLN MARION NESHOBA NEWTON NOXUBEE Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HEZ TO 55 NNE MCB TO 45 E GWO. ..LYONS..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210340- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-019-023-029-031-035-037-061-065-067-069-073-075-077- 079-085-091-099-101-103-109-113-121-123-127-129-147-157-159- 210340- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE CHOCTAW CLARKE COPIAH COVINGTON FORREST FRANKLIN JASPER JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE LINCOLN MARION NESHOBA NEWTON NOXUBEE Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HEZ TO 55 NNE MCB TO 45 E GWO. ..LYONS..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210340- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-019-023-029-031-035-037-061-065-067-069-073-075-077- 079-085-091-099-101-103-109-113-121-123-127-129-147-157-159- 210340- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE CHOCTAW CLARKE COPIAH COVINGTON FORREST FRANKLIN JASPER JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE LINCOLN MARION NESHOBA NEWTON NOXUBEE Read more

MD 2279 CONCERNING TORNADO WATCH 712... FOR SOUTHERN MISSISSIPPI INTO SOUTHWEST ALABAMA
Mesoscale Discussion 2279 NWS Storm Prediction Center Norman OK 0847 PM CST Mon Nov 20 2023 Areas affected...southern Mississippi into southwest Alabama Concerning...Tornado Watch 712... Valid 210247Z - 210445Z The severe weather threat for Tornado Watch 712 continues. SUMMARY...A tornado or two remains possible this evening over southern Mississippi, with a few damaging gusts possible as well. The severe risk may eventually spread into parts of southwest Alabama later tonight. DISCUSSION...A broken line of storms including a few supercells currently stretch east-central MS southwestward into southwest LA. Deep-layer shear remain favorable to sustain cells this evening, with effective SRH maximized over central MS currently. Persistent southerly winds in the lower 2 km will continue to aid moisture advection, with upper 60s F dewpoints spreading north across southwest AL ahead of the ongoing MS storms. A somewhat stable air mass exists east of a batch of warm advection showers now forming over southwest AL, and this general zone may be as far east as the main severe risk gets tonight. As cells continue east across MS and approach the AL state line, additional watches may be considered. ..Jewell.. 11/21/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BMX...MOB...JAN...LIX... LAT...LON 31389080 31788989 32128918 32448848 32428803 32258787 31668765 31318778 31048803 30738909 30669006 30669082 30809105 30979112 31139108 31389080 Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HEZ TO 55 NNE MCB TO 45 E GWO. ..LYONS..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210340- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-019-023-029-031-035-037-061-065-067-069-073-075-077- 079-085-091-099-101-103-109-113-121-123-127-129-147-157-159- 210340- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE CHOCTAW CLARKE COPIAH COVINGTON FORREST FRANKLIN JASPER JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE LINCOLN MARION NESHOBA NEWTON NOXUBEE Read more

WW 712 TORNADO LA MS 202150Z - 210500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 712 NWS Storm Prediction Center Norman OK 350 PM CST Mon Nov 20 2023 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Southeastern Louisiana Southern and Central Mississippi * Effective this Monday afternoon and evening from 350 PM until 1100 PM CST. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms will move eastward this afternoon and evening while posing a threat for tornadoes, damaging winds, and isolated hail. The threat for strong tornadoes will likely persist with any sustained supercell. The tornado watch area is approximately along and 90 statute miles north and south of a line from 30 miles north northwest of Natchez MS to 45 miles north northeast of Pine Belt MS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 711... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 26040. ...Gleason Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W HEZ TO 55 ENE HEZ TO 10 E GWO. ..SQUITIERI..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210240- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-007-019-023-029-031-035-037-051-061-063-065-067-069- 073-075-077-079-085-089-091-099-101-103-109-113-121-123-127-129- 147-157-159-163-210240- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE ATTALA CHOCTAW CLARKE COPIAH COVINGTON FORREST FRANKLIN HOLMES JASPER JEFFERSON JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE LINCOLN MADISON Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Nov 20 2023 Valid 210100Z - 211200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Tornadoes, a couple of which may be strong, scattered damaging thunderstorm winds, and isolated large hail remain possible tonight across portions of the lower Mississippi Valley. ...01z Update... Primary change to 20z outlook is to lower severe probabilities along the cool side of the progressive cold front. Upper low centered over southeast KS continues its slow eastward progression toward southern MO. As a result, high-level diffluent flow has strengthened over the Gulf States. This appears partly responsible for a corridor of severe deep convection that currently extends from eastern LA into central MS. Within this corridor, scattered supercells are observed, at least a few of these are potentially tornadic. 00z sounding from JAN exhibited modest MLCAPE (~800 J/kg) with very strong surface-6km shear (70kt), and 0-3km SRH around 350 m2/s2. Some additional air mass recovery is expected immediately downstream of this activity into western AL as primary surface low lifts northeast into the OH Valley. While the primary dynamic forcing will gradually shift north, southern portions of a strong LLJ will shift east overnight which should allow the aforementioned corridor of severe to advance across MS into western AL. ..Darrow.. 11/21/2023 Read more

WW 0712 Status Updates
STATUS REPORT ON WW 712 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WNW HEZ TO 65 SSW GWO TO 15 E GWO. ..SQUITIERI..11/21/23 ATTN...WFO...LIX...JAN... STATUS REPORT FOR WT 712 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC033-037-063-077-091-103-105-117-121-125-210140- LA . LOUISIANA PARISHES INCLUDED ARE EAST BATON ROUGE EAST FELICIANA LIVINGSTON POINTE COUPEE ST. HELENA ST. TAMMANY TANGIPAHOA WASHINGTON WEST BATON ROUGE WEST FELICIANA MSC001-005-007-019-021-023-029-031-035-037-049-051-061-063-065- 067-069-073-075-077-079-085-089-091-099-101-103-109-113-121-123- 127-129-147-157-159-163-210140- MS . MISSISSIPPI COUNTIES INCLUDED ARE ADAMS AMITE ATTALA CHOCTAW CLAIBORNE CLARKE COPIAH COVINGTON FORREST FRANKLIN HINDS HOLMES JASPER JEFFERSON JEFFERSON DAVIS JONES KEMPER LAMAR LAUDERDALE LAWRENCE LEAKE Read more

MD 2278 CONCERNING TORNADO WATCH 712... FOR MUCH OF CENTRAL MISSISSIPPI
Mesoscale Discussion 2278 NWS Storm Prediction Center Norman OK 0603 PM CST Mon Nov 20 2023 Areas affected...much of central Mississippi Concerning...Tornado Watch 712... Valid 210003Z - 210130Z The severe weather threat for Tornado Watch 712 continues. SUMMARY...The risk for tornadoes appears highest over the next couple hours over south-central Mississippi. DISCUSSION...Large clusters of storms including supercells continue to rapidly move east into central MS, with the strongest supercell over southwest MS. This area has the most favorable environment for a strong tornado, with dewpoints rising to near 70 F, and 0-1 SRH > 200 m2/s2. Indeed, surface winds ahead of this particular supercell cluster remain backed with strong gusts, indicating increased pressure falls and potential strengthening with these storms. Gusting winds also indicate the boundary layer is favorably unstable, which will allow supercells to utilize the full low-level shear available. ..Jewell.. 11/21/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MOB...JAN...LIX... LAT...LON 31438870 31338887 31268922 31188991 31229120 31469133 31609109 31889061 32099029 32348996 32778974 32748916 32528885 32038860 31528860 31438870 Read more

WW 0711 Status Updates
STATUS REPORT ON WW 711 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE BPT TO 15 N POE TO 25 NNW HEZ. ..SQUITIERI..11/20/23 ATTN...WFO...JAN...SHV...LCH...HGX... STATUS REPORT FOR WT 711 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC001-003-009-011-019-025-029-035-039-053-059-065-079-097-107- 210040- LA . LOUISIANA PARISHES INCLUDED ARE ACADIA ALLEN AVOYELLES BEAUREGARD CALCASIEU CATAHOULA CONCORDIA EAST CARROLL EVANGELINE JEFFERSON DAVIS LA SALLE MADISON RAPIDES ST. LANDRY TENSAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0711 Status Updates
STATUS REPORT ON WW 711 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE BPT TO 15 N POE TO 25 NNW HEZ. ..SQUITIERI..11/20/23 ATTN...WFO...JAN...SHV...LCH...HGX... STATUS REPORT FOR WT 711 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS LAC001-003-009-011-019-025-029-035-039-053-059-065-079-097-107- 210040- LA . LOUISIANA PARISHES INCLUDED ARE ACADIA ALLEN AVOYELLES BEAUREGARD CALCASIEU CATAHOULA CONCORDIA EAST CARROLL EVANGELINE JEFFERSON DAVIS LA SALLE MADISON RAPIDES ST. LANDRY TENSAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more