Alert archive / Arkansas / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 60, NWS Memphis, TN

April 12, 2022Cross County, St. Francis County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Apr 12, 2022, 12:35 AM CDT for Cross County, St. Francis County, Arkansas. It was in force for 40 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: Apr 12, 2022, 12:35 AM CDT (05:35 UTC)
Expired: Apr 12, 2022, 1:15 AM CDT
In force: 40 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cross County, AR, St. Francis County, AR

The radar

The Memphis radar (KNQA), 83 km from the middle of the area, began a volume at 05:35 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
Apr 11, 9:18 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 5.6 hours before the alert went out and 82 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: 1560 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 930 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 13.6

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 Apr 11, 11:54 PM CDT, 41 minutes earlier.

Area forecast discussion, Apr 11, 11:54 PM CDT, 41 minutes before

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Hazardous weather outlook, Apr 11, 3:41 PM CDT, 8 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
341 PM CDT Mon Apr 11 2022

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-122245-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
341 PM CDT Mon Apr 11 2022

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...This Afternoon and Tonight

Strong to severe thunderstorms are possible this evening across
east Arkansas, the Missouri Bootheel, much of west Tennessee and
northwest Mississippi. Damaging winds, tornadoes, and very large
hail will be the main threats with these storms. Heavy rainfall
and flash flooding is also possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Strong to severe thunderstorms are expected Tuesday evening into
early morning hours of Wednesday. Damaging winds, large hail, and
tornadoes will be possible with these storms. Heavy rainfall will
also be possible with any slow-moving storms which could lead to
flash flooding.

The threat of a third round of severe weather appears to be
increasing Wednesday afternoon into Wednesday night ahead of a
cold front. Tornadoes, large hail and damaging wind all look
possible. Heavy rainfall and flash flooding will also be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed over the next few days.

SJM

In the hours before

Special weather statement, Apr 11, 11:09 PM CDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service Memphis TN
1109 PM CDT Mon Apr 11 2022

ARZ036-048-049-MSZ001-007-TNZ088-120445-
St. Francis AR-Lee AR-Crittenden AR-Tunica MS-DeSoto MS-Shelby TN-
1109 PM CDT Mon Apr 11 2022

...A strong thunderstorm will impact portions of northeastern Lee,
southeastern St. Francis, southwestern Crittenden, DeSoto,
northeastern Tunica and southwestern Shelby Counties through 1145 PM
CDT...

At 1108 PM CDT, Doppler radar was tracking a strong thunderstorm over
Hughes, moving east at 40 mph.

HAZARD...Winds in excess of 30 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Southaven, Olive Branch, West Memphis, Horn Lake, Hernando, Hughes, T
O Fuller State Park, Memphis, Walls, Edmondson, Horseshoe Lake,
Anthonyville, Lake Cormorant, Southwest Memphis, Eudora, Simsboro,
Whitehaven, Pinckney, Lynchburg and Southeast Memphis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
eastern Arkansas...northwestern Mississippi...and western Tennessee.

&&

LAT...LON 3484 9057 3506 9057 3513 8987 3478 8987
TIME...MOT...LOC 0408Z 265DEG 34KT 3497 9048

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...30 MPH

Local storm report, Apr 11, 11:49 PM CDT, 46 minutes before

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Local storm report, Apr 11, 11:52 PM CDT, 43 minutes before

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Special weather statement, Apr 11, 11:57 PM CDT, 38 minutes before

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Local storm report, Apr 12, 12:02 AM CDT, 33 minutes before

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Special weather statement, Apr 12, 12:12 AM CDT, 23 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
Apr 11, 10:40 PM CDT	Severe Thunderstorm Warning	MEG	Tunica	50 min
Apr 11, 11:09 PM CDT	Special Weather Statement	MEG	DeSoto	36 min
Apr 11, 11:57 PM CDT	Special Weather Statement	MEG	DeSoto	33 min
Apr 12, 12:37 AM CDT	Special Weather Statement	MEG	DeSoto	23 min
Apr 12, 1:01 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Marshall	29 min
Apr 12, 1:26 AM CDT	Special Weather Statement	MEG	Benton, Marshall	34 min
Apr 12, 1:57 AM CDT	Special Weather Statement	MEG	Tippah	48 min
Apr 12, 2:25 AM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Prentiss, Tishomingo	50 min
Apr 12, 2:50 PM CDT	Wind Advisory	MEG	Coahoma, DeSoto, Panola, Quitman, Tallahatchie, Tate and 1 more	4 hr
Apr 12, 2:50 PM CDT	Wind Advisory	MEG	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	31 hr
Apr 12, 6:40 PM CDT	Special Weather Statement	MEG	Quitman	35 min
Apr 11, 7:03 PM CDT	Severe Thunderstorm Warning	MEG	Lake	42 min
Apr 11, 9:41 PM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	24 hr
Apr 12, 12:12 AM CDT	Special Weather Statement	MEG	Fayette	33 min
Apr 12, 2:44 PM CDT	Flood Watch	MEG	Benton, Carroll, Dyer, Gibson, Henry, Lake and 2 more	30 hr
Apr 11, 7:40 PM CDT	Areal Flood Advisory	MEG	Greene	3 hr
Apr 11, 10:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MEG	Lee, St. Francis	48 min
Apr 12, 1:14 AM CDT	Severe Thunderstorm Warning	MEG	Cross, St. Francis	46 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2022 Every severe thunderstorm warning in 2022

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.