Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 372, NWS Memphis, TN

December 9, 2023Itawamba County, Monroe County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Dec 9, 2023, 7:29 PM CST for Itawamba County, Monroe County, Mississippi. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 9, 2023, 7:29 PM CST (01:29 UTC)
Expired: Dec 9, 2023, 8:00 PM CST
In force: 31 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Itawamba County, MS, Monroe County, MS

The radar

The Columbus AFB radar (KGWX), 23 km from the middle of the area, began a volume at 01:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 9, 3:56 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.5 hours before the alert went out and 182 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 821 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 9, 2:49 PM CST, 4 hours 40 minutes earlier.

Area forecast discussion, Dec 9, 2:49 PM CST, 4 hours 40 minutes before

Area Forecast Discussion
National Weather Service Memphis TN
249 PM CST Sat Dec 9 2023

...New SYNOPSIS, DISCUSSION...

.SYNOPSIS...
Issued at 217 PM CST Sat Dec 9 2023

A strong cold front will move east of the Mid-South tonight.
Strong to severe thunderstorms will be found ahead of the front
tonight. Behind the front, drier and much colder air will move
into the region. Temperatures on Sunday will be some 20-25 degrees
colder than today with highs in the mid to upper 40s. Dry weather
will continue through much of the upcoming week with temperatures
gradually returning back toward normal.

&&

.DISCUSSION...
(This evening through next Friday)
Issued at 217 PM CST Sat Dec 9 2023

A strong cold front is located across west Tennessee and extreme
northwest Mississippi. Strong to severe thunderstorms have formed
ahead of the front and a Tornado Watch remains in effect until 7
pm CST. Temperatures ahead of the front are in the low to mid 70s
and in the upper 50s to around 60 degrees.

This cold front will move through the remainder of the Mid-South
tonight with more strong to severe thunderstorms expected ahead of
the front. Behind the front, drier and much colder air will move
into the region overnight. Temperatures will be chilly with lows
Sunday morning in the mid 30s to lower 40s.

The cold front will be east of the region on Sunday with a large
area of high pressure building across the Rockies and into the
southern Plains. Dry and chilly weather will be found across the
Mid-South on Sunday. Temperatures will be some 25 degrees colder
than today with highs in the mid to upper 40s. Sunday night will
be the coldest night of the week with lows Monday morning in the
mid 20s to around 30 degrees.

The surface high will move east of the region on Monday. Winds
will shift to the south bringing milder air to the region.
Temperatures will start to moderate on Monday and then return to
seasonal levels by Tuesday. Dry weather will continue for Tuesday
through early Friday morning. A weak cold front will approach the
region on Friday with a few showers possible.

&&

.AVIATION...
(18Z TAFS)
Issued at 1116 AM CST Sat Dec 9 2023

Cold front about to cross the Mississippi River in west Tennessee
with a secondary boundary over portions of central and western
Arkansas. Ahead of cold front, line of thunderstorms will move
across west Tennessee and north Mississippi this afternoon. IFR
ceilings will cover areas of the Mid-South ahead of the front.
Behind the front, showers and isolated thunderstorms are possible
with ceilings improving to VFR levels. Precipitation will end as
drier air moves into region. Winds will shift from the south to
the northwest as cold front moves through. Wind speeds will be
between 10 and 15 knots with higher gusts for much of the forecast
period.

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

PUBLIC FORECAST...ARS
AVIATION...ARS

In the hours before

Special weather statement, Dec 9, 4:51 PM CST, 2 hours 38 minutes before

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Local storm report, Dec 9, 4:55 PM CST, 2 hours 34 minutes before

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Local storm report, Dec 9, 5:28 PM CST, 2 hours 1 minute before

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Special weather statement, Dec 9, 5:32 PM CST, 1 hour 57 minutes before

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Local storm report, Dec 9, 5:38 PM CST, 1 hour 51 minutes before

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Local storm report, Dec 9, 5:59 PM CST, 1 hour 30 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 9, 6:07 PM CST	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	38 min
Dec 9, 6:11 PM CST	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc	49 min
Dec 9, 6:43 PM CST	Severe Thunderstorm Warning	MEG	Itawamba	25 min
Dec 9, 6:45 PM CST	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe	45 min
Dec 9, 8:39 PM CST	Special Weather Statement	MEG	Monroe	36 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2023 Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.