Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

October 5, 2021Coahoma County, Mississippi; Phillips County, Arkansas

NWS Memphis, TN issued this special weather statement at Oct 5, 2021, 4:17 PM CDT for Coahoma County, Mississippi; Phillips County, Arkansas. It was in force for 58 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, 4:17 PM CDT (21:17 UTC)
Expired
Oct 5, 2021, 5:15 PM CDT
In force
58 min
Issued by
NWS Memphis, TN
Hail
0.50 in
Wind
30

Counties Phillips County, AR, Coahoma County, MS

The radar

The Little Rock radar (KLZK), 131 km from the middle of the area, began a volume at 21:19 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, 9.3 hours before the alert went out and 110 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 2021-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 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 2021-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
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, 1 hour 14 minutes earlier.

Area forecast discussion, Oct 5, 3:03 PM CDT, 1 hour 14 minutes before
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Hazardous weather outlook, Oct 5, 1:48 PM CDT, 2 hours 29 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, 30 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
Special weather statement, Oct 5, 4:17 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Memphis TN
417 PM CDT Tue Oct 5 2021

ARZ049-058-MSZ007-010-052215-
Phillips AR-Lee AR-Tunica MS-Coahoma MS-
417 PM CDT Tue Oct 5 2021

...An area of strong thunderstorms will impact portions of
southeastern Lee, Phillips, central Coahoma and southwestern Tunica
Counties through 515 PM CDT...

At 417 PM CDT, Doppler radar was tracking an area of strong
thunderstorms over St Francis National Park, moving southwest at 25
mph.

HAZARD...Half inch hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
Marvell, Elaine, Helena-West Helena, White River National Wildlife
Refuge, St Francis National Park, Friars Point, Lexa, Dubbs, Dundee,
Watkins Corner, Kings, Sherard, Crumrod, Lake View, Coahoma, Lula,
Lagrange, Rena Lara, Gerlach Mill and Mosby Spur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Memphis.

&&

LAT...LON 3414 9108 3419 9109 3422 9106 3425 9108
      3425 9106 3428 9108 3430 9107 3429 9106
      3433 9106 3434 9105 3434 9100 3447 9100
      3448 9106 3477 9063 3453 9029 3412 9071
      3412 9112
TIME...MOT...LOC 2117Z 052DEG 20KT 3455 9058

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 2:56 PM CDTAreal Flood AdvisoryMEGYalobusha3 hr
Oct 5, 3:47 PM CDTSpecial Weather StatementMEGTunica28 min
Oct 5, 4:20 PM CDTSevere Thunderstorm WarningMEGCoahoma25 min
Oct 5, 4:26 PM CDTSevere Thunderstorm WarningMEGLee, Phillips34 min

Nearby

Special Weather Statements in Mississippi, 2021Special Weather Statements in Arkansas, 2021Every 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.