Tornado outbreak of November 29–30, 2022: Difference between revisions
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==Preparations== |
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Multiple schools in Mississippi were closed, including [[Clinton Public School District|Clinton]], [[Natchez-Adams School District|Natchez]], and [[Vicksburg-Warren School District|Vicksburg]].<ref>{{Cite web |last=Staff |first=WLBT com |title=LIST: Severe weather threat prompts school closures today |url=https://www.wlbt.com/2022/11/29/severe-weather-threat-tuesday-prompts-school-closures/ |access-date=2022-11-29 |website=https://www.wlbt.com |language=en}}</ref> |
Multiple schools in Mississippi were closed, including [[Clinton Public School District|Clinton]], [[Natchez-Adams School District|Natchez]], and [[Vicksburg-Warren School District|Vicksburg]].<ref>{{Cite web |last=Staff |first=WLBT com |title=LIST: Severe weather threat prompts school closures today |url=https://www.wlbt.com/2022/11/29/severe-weather-threat-tuesday-prompts-school-closures/ |access-date=2022-11-29 |website=https://www.wlbt.com |language=en}}</ref> |
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Revision as of 14:16, 30 November 2022
 | This article is about a current weather event where information can change quickly or be unreliable. The latest page updates may not reflect the most up-to-date information. Please refer to your local weather service or media outlets for the latest weather information pertaining to a specific location. |
 The storm system responsible for the tornado outbreak across the Southern United States on November 30 | |
| Type | Tornado outbreak |
|---|---|
| Duration | November 29–30, 2022 |
| Highest winds |
|
| Tornadoes confirmed | 14[note 1] |
| Max. rating1 | Unknown tornado |
| Duration of tornado outbreak2 | Ongoing |
| Largest hail | Unknown |
| Fatalities | 2 |
| Areas affected | Southern United States |
Part of the tornado outbreaks of 2022 1Most severe tornado damage; see Enhanced Fujita scale 2Time from first tornado to last tornado | |
A late-season tornado outbreak in the Southern United States is currently ongoing, with the states of Louisiana, Arkansas, Mississippi, and Tennessee being affected. The outbreak is the result of an intense upper-level trough that materialized over the aforementioned states, where increased moisture, atmospheric instability, and elevated wind shear were present, creating conditions highly conductive for supercell thunderstorms. Multiple tornadic storms developed in the risk area, with tornadoes being confirmed in Mississippi and Louisiana. A few of these have been intense, with large, destructive tornadoes prompting the issuance of PDS tornado warnings in Caldwell Parish, Louisiana, near the town of Woodlawn, Mississippi and in Washington County, Alabama.
Meteorological synopsis
A significant severe weather event was evident with multiple days in anticipation, as early models suggested the presence of multiple thunderstorm-enhancing atmospheric conditions over the northeast Ark-La-Tex regions, northwest Mississippi, and extreme southwestern Tennessee. On November 24, the Storm Prediction Center identified a "severe" threat for the aforementioned regions, although most of the highest risk was positioned over northern Louisiana.[2] As the days passed, and computer weather prediction models identified multiple thunderstorm-enhancing elements over the area, confidence grew in the probability of a severe weather outbreak occurring. On November 27, the SPC issued a Day 3 level 3/enhanced risk for the area, extending all the way through eastern Arkansas, and into western Tennessee. The outlook suggested that a progressive upper-level trough would pass over eleavated instability in the area, which coupled with a strong 50-70 kt low-level jet, and 400-500 m2/s2 helicity values, would create conditions conductive to supercell thunderstorm development. An additional damaging wind and hail threat was mentioned.[3]
The threat level was upped to a level 4/moderate risk by the SPC on November 28. The main area of risk was shifted mainly to western Mississippi, extreme southeastern Arkansas, and northeastern Louisiana, where a 15% hatched risk for tornadoes was introduced, indicating the elevated probabilities for strong, long-tracked tornadoes to develop. The outlook highlighted the presence of greater instability than expected, aided by strong wind shear, and steep mid-level lapse rates, would help in the sustainment of supercell structures, enhancing the tornado risk.[4] The next day, at 1300 UTC (8:00 am CDT), the SPC maintained the risk level, with some minor corrections to its coverage and 15% tornado risk placement. This outlook presented the presence of Convective available potential energy (CAPE) values of 1000-2000 J/kg in the area, and with the prevously stated rich moisture, shear, and helicity present in the area, conditions were primed for a tornado outbreak scenario.[5]
As the afternoon advanced, the SPC issued two rare PDS tornado watch encompassing large regions of Louisiana, southeastern Arkansas, and central Mississippi, as atmospheric conditions were very favorable for strong, long-track tornadoes.[6]
Confirmed tornadoes
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12[note 1] |
Preparations
![[icon]](/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section needs expansion. You can help by adding to it. |
Multiple schools in Mississippi were closed, including Clinton, Natchez, and Vicksburg.[9]
See also
Notes
- ^ a b This is a count of preliminary reports, which may differ from the number of actual tornadoes. There may be multiple reports of single tornadoes.
- ^ All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time for consistency.
References
- ^ "At 10:53 PM CST, 3 E Monroe [Ouachita Co, LA] ASOS reports TSTM WND GST of M64 MPH. 56 KT (64 MPH) WIND GUST MEASURED AT THE MONROE REGIONAL AIRPORT". Twitter. Monroe Regional Airport. Retrieved November 30, 2022.
- ^ Nov 25, 2022 Day 4-8 Severe Weather Outlook (Report). National Weather Service. Retrieved November 29, 2022.
- ^ Nov 27, 2022 Day 3 Convective Outlook (Report). National Weather Service. Retrieved November 29, 2022.
- ^ Nov 28, 2022 Day 2 Convective Outlook (Report). National Weather Service. Retrieved November 29, 2022.
- ^ Nov 29, 2022 Day 3 Convective Outlook (Report). National Weather Service. Retrieved November 29, 2022.
- ^ Tornado Watch 572 (Report). National Weather Service. Retrieved November 29, 2022.
- ^ a b c d e f g h i j k l m n "SPC Filtered Storm Reports for 11/29/22". Storm Prediction Center. Retrieved November 30, 2022.
- ^ "4 people seriously hurt and several animals are dead in Caldwell Parish, LA after a violent tornado hits the county. #LAWX @NWSNewOrleans @AlaStormTracker video available at @LiveStormsMedia". Twitter. @MichaelBeardWX. Retrieved November 30, 2022.
- ^ Staff, WLBT com. "LIST: Severe weather threat prompts school closures today". https://www.wlbt.com. Retrieved November 29, 2022.
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