Tornado Warning National Weather Service New Orleans LA 450 PM CST Fri Nov 27 2020
The National Weather Service in New Orleans has issued a
* Tornado Warning for... Northern Hancock County in southern Mississippi... South central Pearl River County in southern Mississippi...
* Until 515 PM CST.
* At 450 PM CST, a severe thunderstorm capable of producing a tornado was located near Picayune, moving east at 15 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 tornadic thunderstorm will remain over mainly rural areas of northern Hancock and south central Pearl River Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to 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.
To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in New Orleans.
Severe Thunderstorm Warning National Weather Service New Orleans LA 458 PM CST Fri Nov 27 2020
The National Weather Service in New Orleans has issued a
* Severe Thunderstorm Warning for... Southwestern Ascension Parish in southeastern Louisiana... West central St. James Parish in southeastern Louisiana... Southeastern Iberville Parish in southeastern Louisiana... North central Assumption Parish in southeastern Louisiana...
* Until 545 PM CST.
* At 457 PM CST, a severe thunderstorm was located over Bayou Sorrel, or 9 miles southwest of Plaquemine, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include... Gonzales, Donaldsonville, St. Gabriel, White Castle, Geismar, Bayou Sorrel, Carville and Belle Rose.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a building.
To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office in New Orleans.
From yesterday's storms, an EF-1 tornado was confirmed south of McComb by the National Weather Service.
4 S Mccomb [Pike Co, MS] NWS STORM SURVEY reports TORNADO of EF1 at 27 Nov, 3:00 PM CST -- NWS STORM SURVEY CONFIRMS EF-1 TORNADO OCCURRED SOUTH OF MCCOMB, MS. PATH LENGTH WAS 1.5 MILES AND PATH WIDTH WAS 50 YARDS. WINDS WERE ESTIMATED TO BE 100 MPH. TREES, A MOBILE HOME, AIRPORT HANGARS, AND AIRCRAFT WERE DAMAGED ALONG THE PATH OF THE TORNADO.
Mesoscale Discussion 1819 NWS Storm Prediction Center Norman OK 0240 PM CST Sun Nov 29 2020
Areas affected...Parts of southeastern Louisiana...southeastern Mississippi....southwestern Alabama and the western Florida Panhandle
Concerning...Severe potential...Watch unlikely
Valid 292040Z - 292315Z
Probability of Watch Issuance...20 percent
SUMMARY...Some potential exists for the development of a supercell or two, accompanied by the risk for producing a tornado, as a deepening surface low continues to migrate inland of the coast through 4-6 PM CST. It is not yet clear that a severe weather watch will be needed, but trends will continue to be monitored.
DISCUSSION...A surface frontal low continues to develop inland of north central Gulf coastal areas (near New Orleans, LA as of 20Z). The Rapid Refresh has been indicating further deepening is likely through the remainder of the afternoon, with a more rapid north-northeastward migration toward the Selma AL vicinity by 30/00Z, as a vigorous upstream short wave trough begins pivoting northeastward through the lower Mississippi Valley.
Strongest southerly 850 mb flow is now inland of the coast in a belt across southeastern Mississippi through much of southern Alabama and the western Florida Panhandle, where clockwise-curved low-level hodographs are largest and becoming most conducive to potential for storms capable of producing tornadoes. Deep-layer wind fields are expected to become more favorable, as west-southwesterly flow in the 700-500 mb layer strengthens across this region through early evening.
More problematic to severe weather potential, seasonably moist boundary-layer air remains largely confined to areas offshore of the Gulf coast, and forecast soundings are suggestive that a residual near surface stable layer may persist inland of coastal areas even as the surface low center migrates inland. However, trends in latest objective surface analysis hint that at least some modification may be underway.
Given the deepening nature of the surface low, it may not be out of the question that boundary-layer destabilization could become sufficient to support an intensifying warm sector storm or two late this afternoon. If this occurs, the wind profiles will be conducive to the evolution of supercells, with the potential to produce a tornado.
Tornado Warning National Weather Service Mobile AL 324 PM CST Sun Nov 29 2020
The National Weather Service in Mobile has issued a
* Tornado Warning for... Southeastern Baldwin County in southwestern Alabama...
* Until 400 PM CST.
* At 324 PM CST, a severe thunderstorm capable of producing a tornado was located 4 miles east of Bon Secour, or 4 miles northeast of Gulf Shores, 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... Elberta around 335 PM CST. Lillian around 350 PM CST.
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.