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Are you interested in what happened during a recent event? Check out the report below.
 
A Close Call on November 29, 2022
 
Warm/moist air behind a warm front advancing northward from the Gulf Coast collided with much colder conditions following a cold front from the Plains on 11/29/2022. The result was an outbreak of severe weather mainly in northern Louisiana, Mississippi, and Alabama.
In the picture: Warm/moist air behind a warm front advancing northward from the Gulf Coast collided with much colder conditions following a cold front from the Plains on 11/29/2022. The result was an outbreak of severe weather mainly in northern Louisiana, Mississippi, and Alabama.
 

For the second time in November, an outbreak of severe weather was a possibility in Arkansas on the 29th. Warm and moist air was on the move northward from the Gulf Coast. At the same time, much colder air was on the doorstep in the Plains. Contrasting air masses often yield volatile weather, and that is what was on the menu in the mid-South.

 

According to an outlook from the Storm Prediction Center (in Norman, OK), there was an enhanced to moderate risk of severe weather from Louisiana into southeast Arkansas, Mississippi, and northwest Alabama on 11/29/2022.
In the picture: According to an outlook from the Storm Prediction Center (in Norman, OK), there was an enhanced to moderate risk of severe weather from Louisiana into southeast Arkansas, Mississippi, and northwest Alabama on 11/29/2022.
 

Severe thunderstorms were expected to develop during the afternoon and overnight hours, especially from southeast Arkansas into northern Louisiana, Mississippi, and northwest Alabama. Tornadoes were likely in these areas.

 

 

000
NOUS44 KLZK 281356
PNSLZK
ARZ004>008-014>017-024-025-031>034-039-042>047-052>057-062>069-
103-112-113-121>123-130-137-138-140-141-203-212-213-221>223-230-
237-238-240-241-313-340-341-290200-

Public Information Statement
National Weather Service Little Rock AR
756 AM CST Mon Nov 28 2022

...THE KLZK WSR-88D 2-WEEK SCHEDULED MAINTENANCE TO BE DELAYED 2 DAYS...

The planned maintenance scheduled to begin today...that would
have kept the radar down for up to two weeks...will be delayed by
two days. The decision was made in response the forecast severe
weather expected Tuesday into Tuesday night across the region.

The radar will be taken down for much of today however to complete
work that can be done in preparation for the scheduled
maintenance. The good news is the radar will be back up by this
evening through early Wednesday morning. Once the process begins
on Wednesday...the radar will be down until all the work is
completed.

$$
In the text: As part of the WSR-88D (Doppler Weather Radar) Service Life Extension Program (SLEP), the pedestal (necessary for antenna rotation to capture data in all directions) was to be refurbished on 11/28/2022. Given the potential of severe weather the next day, the replacement was delayed.
 

Unfortunately, the WSR-88D at North Little Rock (KLZK) was scheduled to be taken down the day before the event unfolded. This was the beginning of an up to two week repair to refurbish a critical component of the radar (the pedestal). The planning of such a repair was complicated, and the same repair for other radars was locked in on the calendar. Any delays could potentially throw the repair process into disarray. Even so, given the heightened risk of severe weather, it was decided to halt work until this event was over.

 

The WSR-88D (Doppler Weather Radar) showed strong to severe thunderstorms from northern Louisiana to central Tennessee and southern Kentucky at 610 pm CST on 11/29/2022 or 0010 UTC on 11/30/2022 (more on UTC time). Several Tornado and Severe Thunderstorm Warnings were in effect.
In the picture: The WSR-88D (Doppler Weather Radar) showed strong to severe thunderstorms from northern Louisiana to central Tennessee and southern Kentucky at 610 pm CST on 11/29/2022 or 0010 UTC on 11/30/2022 (more on UTC time). Several Tornado and Severe Thunderstorm Warnings were in effect.
 

Once the event got under way, numerous tornadoes were spawned. The tornadoes bypassed Arkansas to the south and east. There were three dozen reports of tornado damage by the morning of the 29th.

 

Outside of Arkansas

Tornadoes wreaked havoc to the south and east of Arkansas on November 29th/early on the 30th. Sadly, some of the tornadoes were spawned late at night while folks were asleep. At Holum, LA (35 miles south of Monroe, LA), several homes were damaged or destroyed by a tornado (rated EF3), and at least two people were injured. A similar tornado (rated EF3) cut a nearly twenty mile swath of destruction through Fruitdale, AL and Tibbie, AL (50 miles north of Mobile, AL). A tree was uprooted by a tornado (rated EF2) and fell through a home just northeast of Montgomery, AL. There were two fatalities and one injury. A tornado (rated EF1) tore much of the roof off of an apartment complex near Eutaw, AL (80 miles southwest of Birmingham, AL). Displaced residents were sheltered at a nearby middle school. A grocery store was hit by a tornado (rated EF2) just south of Caledonia, MS. People were trapped inside. Not far away, a fire department building was dismantled.

While severe thunderstorms were ongoing, a band of snow (some heavy) developed from the central Plains to upper Midwest. Six to ten inch accumulations were noted in parts of Minneapolis, MN.

A couple of days before the severe weather event, the Mauna Loa volcano erupted. The volcano was in hiatus since 1985, which was its longest period (thirty seven years) without an eruption. This is one of five volcanos on the island of Hawaii.

 

Severe weather reports in the twenty four hour period ending at 600 am CST on 11/30/2022. Tornadoes stayed south and east of Arkansas.
In the picture: Severe weather reports in the twenty four hour period ending at 600 am CST on 11/30/2022. Tornadoes stayed south and east of Arkansas.
 

Around here, a power pole and power lines were downed on Highway 318 at Marvell (Phillips County). Golf ball size hail was reported at Dermott (Chicot County), with ping pong ball size hail at Tinsman (Calhoun County), and quarter size hail west of Star City (Lincoln County).

 

 

Twenty four hour rainfall through 600 am CST on 11/30/2022.
In the picture: Twenty four hour rainfall through 600 am CST on 11/30/2022.
 

As far as rainfall, the heaviest precipitation was to the east of us. Parts of eastern Mississippi and northern Alabama had more than five inches of liquid. Amounts over two inches occurred in extreme southeast Arkansas.

 

Temperatures at 800 pm CST on 11/29/2022 were still in the 60s/70s in much of southern and eastern Arkansas. Meanwhile, readings were in the 30s/40s across northern and western sections of the state.
In the picture: Temperatures at 800 pm CST on 11/29/2022 were still in the 60s/70s in much of southern and eastern Arkansas. Meanwhile, readings were in the 30s/40s across northern and western sections of the state.
 

After high temperatures in the 60s and 70s, colder air poured into the region from the northwest. By the morning of the 30th, most readings were in the 20s and 30s. There was also a gusty north to northwest wind.