Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 129, NWS Memphis, TN

June 11, 20234 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jun 11, 2023, 7:18 PM CDT for 4 counties in Mississippi. It was in force for 27 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
Jun 11, 2023, 7:18 PM CDT (00:18 UTC)
Expired
Jun 11, 2023, 7:45 PM CDT
In force
27 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Benton County, MS, Lafayette County, MS, Marshall County, MS, Tate County, MS

The radar

The Memphis radar (KNQA), 84 km from the middle of the area, began a volume at 00:21 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.

IssuedProductOfficeLasted
Jun 11, 2:47 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.3 hours before the alert went out and 302 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2023-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2168 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2023-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2168 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1466 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.6

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 Jun 11, 6:47 PM CDT, 31 minutes earlier.

Area forecast discussion, Jun 11, 6:47 PM CDT, 31 minutes before
Area Forecast Discussion
National Weather Service Memphis TN
647 PM CDT Sun Jun 11 2023

...New AVIATION...

.SYNOPSIS...
Issued at 257 PM CDT Sun Jun 11 2023

An unsettled pattern will continue across the Midsouth for the
upcoming work week but cooler temperatures will be a welcomed
change for the first half of the week. Monday should be mostly dry
with high temperatures in the upper 70s to low 80s. However,
showers and thunderstorms are expected each day Tuesday into next
weekend. Temperatures will trend a few degrees warmer each day
with 90s returning area wide by Saturday.

30/Sirmon

&&

.DISCUSSION...(This evening through next Saturday) Issued at 257
PM CDT Sun Jun 11 2023

Showers and thunderstorms are developing rapidly across the
region. An Enhanced Risk of severe thunderstorms exists for
nearly all of the Mid South as a cold front moves through the
region this afternoon and evening. A severe thunderstorm watch has
been issued for all of the Midsouth through 10 pm tonight
although portions of the watch will likely be cancelled after
storms move through and stabilize a given region. Area upper air
soundings show sufficient dry air aloft to result in an enhanced
risk for both large hail and damaging wind, with the greater
threat evolving into damaging wind later this evening. 25-35kt
0-3km shear should be sufficient to maintain healthy updrafts in
storm clusters, but likely too little to result in any significant
tornado threat. Hail and damaging wind will be the main threats
from any severe thunderstorms, but frequent lightning and heavy
rainfall will pose a threat to any outdoor events, even from sub-
severe thunderstorms.

Transient high pressure will build in behind the cold front later
tonight resulting in mostly dry conditions Monday. However, zonal
to weak northwest flow will return Tuesday. Several impulses will
traverse the mean flow Tuesday through Saturday resulting in
multiple rounds of showers and thunderstorms. At this time there
is no indication that widespread severe storms are likely. Heavy
rainfall over several days could develop into a flooding threat.
Temperatures tomorrow should be seasonably pleasant, featuring
highs in the middle 70s to low 80s. We should see our coolest
temperatures of the forecast period Tuesday morning when areas
near the Tennessee River may dip as low as the middle 50s. Expect
high temperatures to trend a few degrees warmer each day with 90s
returning area wide by Saturday.

30/Sirmon

&&

.AVIATION...
(00Z TAFS)
Issued at 643 PM CDT Sun Jun 11 2023

For the next few hours, intermittent TSRA may impact all sites
except JBR where the front has already cleared. This may result in
temporary reductions in visibilities and gusty winds up to 30 kts.
After these isolated cells clear the area, guidance is hinting at
a period of MVFR ceilings overnight. Most models place a 1500 ft
AGL deck across the area starting shortly after midnight and
finally improving back to VFR around sunrise through the rest of
the period. Post-FROPA overnight, winds are also expected to
shift to the north around 6-9 kts. Opted not to include any precip
mention at the end of the extended MEM TAF; models suggest a wave
of rain coming in around midnight tomorrow night.

CAD

&&

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

PUBLIC FORECAST...JDS
AVIATION...CAD

In the hours before

Special weather statement, Jun 11, 6:47 PM CDT, 31 minutes before
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Local storm report, Jun 11, 6:54 PM CDT, 24 minutes before
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Local storm report, Jun 11, 6:57 PM CDT, 21 minutes before
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Local storm report, Jun 11, 7:09 PM CDT, 9 minutes before
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Local storm report, Jun 11, 7:14 PM CDT, 4 minutes before
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Local storm report, Jun 11, 7:16 PM CDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:02 PM CDTSevere Thunderstorm WarningMEGCalhoun, Lafayette, Pontotoc43 min
Jun 11, 7:11 PM CDTSevere Thunderstorm WarningMEGCalhoun, Lafayette, Panola, Yalobusha49 min
Jun 11, 7:13 PM CDTSevere Thunderstorm WarningMEGDeSoto, Marshall, Tate, Tunica47 min
Jun 11, 7:19 PM CDTSevere Thunderstorm WarningMEGTunica41 min
Jun 11, 7:22 PM CDTSevere Thunderstorm WarningMEGLee, Pontotoc, Union53 min
Jun 11, 7:28 PM CDTSevere Thunderstorm WarningMEGTishomingo24 min
Jun 11, 7:33 PM CDTSevere Thunderstorm WarningMEGLafayette, Marshall, Tate27 min
Jun 11, 7:47 PM CDTSevere Thunderstorm Warning Considerable damage threatMEGDeSoto, Panola, Tate, Tunica43 min
Jun 11, 7:49 PM CDTSevere Thunderstorm WarningMEGChickasaw, Lafayette, Lee, Pontotoc41 min
Jun 11, 7:54 PM CDTSevere Thunderstorm WarningMEGBenton, Lafayette, Marshall, Pontotoc, Union36 min
Jun 11, 8:02 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lafayette, Pontotoc43 min
Jun 11, 8:09 PM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Monroe, Pontotoc, Prentiss, Union51 min
Jun 11, 8:35 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe40 min
Jun 11, 8:36 PM CDTSevere Thunderstorm WarningMEGCoahoma24 min
Jun 11, 8:37 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Pontotoc53 min
Jun 11, 8:44 PM CDTTornado WarningMEGItawamba, Monroe10 min
Jun 11, 9:08 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lafayette, Lee, Pontotoc, Yalobusha52 min
Jun 11, 9:11 PM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe34 min
Jun 11, 9:44 PM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Monroe, Pontotoc46 min
Jun 11, 7:04 PM CDTSevere Thunderstorm WarningMEGFayette, Haywood, Shelby, Tipton26 min
Jun 11, 7:27 PM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Tipton33 min
Jun 11, 7:31 PM CDTSevere Thunderstorm WarningMEGCross, St. Francis44 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2023Every 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.