Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 155, NWS Memphis, TN

June 14, 2023Itawamba County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jun 14, 2023, 11:54 AM CDT for Itawamba County, Mississippi. It was in force for 36 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 14, 2023, 11:54 AM CDT (16:54 UTC)
Expired
Jun 14, 2023, 12:30 PM CDT
In force
36 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Itawamba County, MS

The radar

The Columbus AFB radar (KGWX), 43 km from the middle of the area, began a volume at 16:55 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 14, 8:10 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 4.9 hours before the alert went out and 158 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, Little Rock, AR at 12:00Z on 2023-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1002 joules per kilogram.LCLLFCEL10008507005003002001001 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, Little Rock, AR at 12:00Z on 2023-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.1939587897117136Sfc1 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
1002 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
587 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
389 m²/s²
Significant tornado parameter
2.1
Supercell composite
8.7

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 Jun 14, 6:54 AM CDT, 5 hours earlier.

Area forecast discussion, Jun 14, 6:54 AM CDT, 5 hours before
Area Forecast Discussion...UPDATED
National Weather Service Memphis TN
654 AM CDT Wed Jun 14 2023

...New AVIATION...

.SYNOPSIS...
Issued at 237 AM CDT Wed Jun 14 2023

Expect showers and thunderstorms to persist for the next few days,
especially over northern Mississippi. Main hazards will be
damaging winds, hail and locally heavy rainfall. Temperatures will
also begin to increase through the remainder of the work week.
Highs will remain mostly in the 80s through Friday then warm to
the 90s through the weekend into early next week.

&&

.DISCUSSION...
(Today through Tuesday)
Issued at 237 AM CDT Wed Jun 14 2023

Model guidance show a a stalled boundary in central Mississippi
that will be the main focus for the next few days. Current radar
data indicates stronger storms moving through northern
Mississippi along the stalled boundary. There will be two rounds
of thunderstorms, with the first one lasting until mid-morning.
There will be just a slight lull over most of the area by late
morning, then the second round of showers will push through by
23z. CAMs show a bowing segment that will quickly push through
Mississippi and continue to dive southeast into Birmingham's area.
Storms should be completely out of the area shortly after
midnight. Main hazards with this mornings round will be hail, then
by this evening our wind threat will increase. We could still see
hail this evening, possibly up to quarter sized given our steep
lapse rates. Although hail and damaging wind will be the most
prominent concerns, tornadoes can't be ruled out. In addition,
locally heavy rainfall may be a threat. Highs today will mainly be
in low to mid 80s, with lows tonight in 60s.

The front will continue to stay parked over central Mississippi
through Friday. This will promote the chance for scattered showers
and thunderstorms mainly across northern Mississippi. Severe
weather chances will remain isolated with gusty winds and hail the
main hazards associated with these storms.

By the end of the week into the weekend, expect hot and humid
weather across the region with highs in the low 90s and heat
indices approaching 103 in northern Mississippi by Saturday. We
will remain in active pattern this weekend into early next week as
several disturbances push into the Mid-South, including the
passage of a low pressure system Sunday. The pattern would suggest
increasing chances for severe storms with damaging winds, hail
and locally heavy rainfall, especially for Sunday as the stronger
trough approaches. Will continue to monitor these trends as the
weekend approaches.

&&

.AVIATION...
(12Z TAFS)
Issued at 646 AM CDT Wed Jun 14 2023

Primary forecast concern is timing of TSRA in the northwest flow
aloft. For the morning, expect the bulk of TSRA over central AR to
pass south of MEM. However, as with the case earlier this morning,
upper air shear profiles suggest additional TSRA may form along
the northward periphery of any dominant convection. For the TAFs,
mainly followed the HRRR, but with slightly faster timing,
accounting for the additional northerly development.

Convective timing remains more unclear beyond 18Z. Last several
runs of the HRRR show diminishing late afternoon/early evening TSRA
potential, but not ready to buy off on that yet. In summary,
confidence in late afternoon and evening TSRA is relatively low.

PWB

&&

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

PUBLIC FORECAST...SWB
AVIATION...PWB

In the hours before

Special weather statement, Jun 14, 9:21 AM CDT, 2 hours 33 minutes before
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Local storm report, Jun 14, 10:06 AM CDT, 1 hour 48 minutes before
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Local storm report, Jun 14, 10:29 AM CDT, 1 hour 25 minutes before
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Local storm report, Jun 14, 10:33 AM CDT, 1 hour 21 minutes before
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Special weather statement, Jun 14, 11:40 AM CDT, 14 minutes before
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Local storm report, Jun 14, 11:49 AM CDT, 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 2:27 AM CDTSpecial Weather StatementMEGDeSoto, Tate, Tunica33 min
Jun 14, 2:58 AM CDTSpecial Weather StatementMEGDeSoto, Marshall32 min
Jun 14, 8:14 AM CDTSevere Thunderstorm WarningMEGCoahoma, Tunica31 min
Jun 14, 8:41 AM CDTSevere Thunderstorm WarningMEGCoahoma, Tunica49 min
Jun 14, 8:55 AM CDTSpecial Weather StatementMEGPrentiss50 min
Jun 14, 9:09 AM CDTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tallahatchie, Tunica51 min
Jun 14, 9:21 AM CDTSpecial Weather StatementMEGItawamba24 min
Jun 14, 9:25 AM CDTSevere Thunderstorm WarningMEGCoahoma, Tallahatchie35 min
Jun 14, 9:37 AM CDTSevere Thunderstorm WarningMEGItawamba, Tishomingo23 min
Jun 14, 9:54 AM CDTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tallahatchie, Yalobusha36 min
Jun 14, 10:24 AM CDTSevere Thunderstorm WarningMEGTallahatchie36 min
Jun 14, 11:17 AM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw26 min
Jun 14, 11:40 AM CDTSpecial Weather StatementMEGItawamba35 min
Jun 14, 1:46 AM CDTSpecial Weather StatementMEGPhillips44 min
Jun 14, 2:13 AM CDTSpecial Weather StatementMEGLee17 min
Jun 14, 6:58 PM CDTSpecial Weather StatementMEGClay32 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.