Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

October 5, 2021Tunica County, Mississippi

NWS Memphis, TN issued this special weather statement at Oct 5, 2021, 3:47 PM CDT for Tunica County, Mississippi. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 5, 2021, 3:47 PM CDT (20:47 UTC)
Expired: Oct 5, 2021, 4:15 PM CDT
In force: 28 min
Issued by: NWS Memphis, TN
Hail: 0.75 in
Wind: 40

County Tunica County, MS

The radar

The Memphis radar (KNQA), 93 km from the middle of the area, began a volume at 20:47 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 nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 8.8 hours before the alert went out and 49 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: 46 J/kg
Mixed-layer CIN: -236 J/kg
Mixed-layer LCL: 1385 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Oct 5, 3:03 PM CDT, 44 minutes earlier.

Area forecast discussion, Oct 5, 3:03 PM CDT, 44 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Oct 5, 1:48 PM CDT, 1 hour 59 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Memphis TN
148 PM CDT Tue Oct 5 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-062100-
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-
148 PM CDT Tue Oct 5 2021

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

.DAY ONE...This Afternoon and Tonight

There is a marginal risk for severe thunderstorms this afternoon
over much of north Mississippi and portions of West Tennessee
south of I-40. Large hail will be the primary threat if a
thunderstorm reaches severe limits.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Oct 5, 3:47 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Memphis TN
347 PM CDT Tue Oct 5 2021

ARZ049-058-MSZ007-010-052115-
Phillips AR-Lee AR-Tunica MS-Coahoma MS-
347 PM CDT Tue Oct 5 2021

...A strong thunderstorm will impact portions of southeastern Lee,
northeastern Phillips, northeastern Coahoma and central Tunica
Counties through 415 PM CDT...

At 347 PM CDT, Doppler radar was tracking a strong thunderstorm over
Tunica, or 14 miles northeast of St Francis National Park, moving
southwest at 10 mph.

HAZARD...Winds in excess of 40 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...
Helena-West Helena, St Francis National Park, Tunica, North Tunica,
Dundee, Dubbs, Little Texas, Lula, Moon, Maud, Fox Island, Quarles,
Austin, Jeffries, Clayton, Hollywood, Roseacres, Hamlin, Rich and
Powell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3479 9039 3466 9024 3438 9045 3459 9070
TIME...MOT...LOC 2047Z 046DEG 7KT 3468 9039

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 2:56 PM CDT	Areal Flood Advisory	MEG	Yalobusha	3 hr
Oct 5, 4:17 PM CDT	Special Weather Statement	MEG	Coahoma	58 min
Oct 5, 4:20 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma	25 min
Oct 5, 4:26 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	34 min

Nearby

Special Weather Statements in Mississippi, 2021 Every special weather statement in 2021

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.