Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

August 13, 2021Haywood County, Tennessee

NWS Memphis, TN issued this special weather statement at Aug 13, 2021, 12:31 PM CDT for Haywood County, Tennessee. It was in force for 29 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
Aug 13, 2021, 12:31 PM CDT (17:31 UTC)
Expired
Aug 13, 2021, 1:00 PM CDT
In force
29 min
Issued by
NWS Memphis, TN
Hail
0.00 in
Wind
40

County Haywood County, TN

The radar

The Memphis radar (KNQA), 65 km from the middle of the area, began a volume at 17:34 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, 5.5 hours before the alert went out and 109 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 2021-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1427 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 2021-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
1427 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
13 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 Aug 13, 10:34 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Aug 13, 10:34 AM CDT, 1 hour 57 minutes before
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <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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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 13, 3:31 AM CDT, 9 hours before
Hazardous Weather Outlook
National Weather Service Memphis TN
331 AM CDT Fri Aug 13 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-141045-
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-
331 AM CDT Fri Aug 13 2021

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

.DAY ONE...Today and Tonight

There is a Marginal Risk for severe thunderstorms today, along and
north of the Interstate 40 corridor. Damaging winds and flash
flooding will be possible.

Away from thunderstorm outflow, midafternoon heat indices may
approach 105 degrees.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

PWB

In the hours before

Special weather statement, Aug 13, 12:07 PM CDT, 24 minutes before
Special Weather Statement
National Weather Service Memphis TN
1207 PM CDT Fri Aug 13 2021

TNZ050-051-131730-
Crockett TN-Haywood TN-
1207 PM CDT Fri Aug 13 2021

...A strong thunderstorm will impact portions of southwestern
Crockett and northern Haywood Counties through 1230 PM CDT...

At 1207 PM CDT, Doppler radar was tracking a strong thunderstorm near
Belle Eagle, or 7 miles northwest of Brownsville, moving northeast at
10 mph.

HAZARD...Winds in excess of 30 mph and pea 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...
Brownsville, Bells, Nutbush, Belle Eagle, Forked Deer, Maury City,
Allens, Dog Hill, Christmasville, Rudolph, Tibbs, Jones, Johnsons
Grove, Frog Jump, Oakview, Owl City, Edward Grove and Toulon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3570 8906 3556 8930 3568 8945 3572 8944
      3589 8930 3588 8929
TIME...MOT...LOC 1707Z 223DEG 8KT 3568 8932

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
Special weather statement, Aug 13, 12:29 PM CDT, 2 minutes before
Special Weather Statement
National Weather Service Memphis TN
1229 PM CDT Fri Aug 13 2021

TNZ048>050-131800-
Tipton TN-Lauderdale TN-Haywood TN-
1229 PM CDT Fri Aug 13 2021

...A strong thunderstorm will impact portions of eastern Tipton,
southeastern Lauderdale and southwestern Haywood Counties through 100
PM CDT...

At 1228 PM CDT, Doppler radar was tracking a strong thunderstorm near
Covington, moving east at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Covington, Mason, Stanton, Asbury, Cotton Lake, Hickory Point, Canaan
Grove, Orysa, Keeling, Gift, Shepp, Gainesville, Tabernacle, Turnpike
and Meux Corner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3540 8965 3559 8970 3570 8936 3544 8929
TIME...MOT...LOC 1728Z 257DEG 15KT 3552 8959

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
Special weather statement, Aug 13, 12:31 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Memphis TN
1231 PM CDT Fri Aug 13 2021

TNZ050-051-131800-
Crockett TN-Haywood TN-
1231 PM CDT Fri Aug 13 2021

...A strong thunderstorm will impact portions of south central
Crockett and central Haywood Counties through 100 PM CDT...

At 1231 PM CDT, Doppler radar was tracking a strong thunderstorm near
Nutbush, or near Brownsville, moving east at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Brownsville, Alamo, Belle Eagle, Holly Grove, Allens, Christmasville,
Rudolph, Tibbs, Sunnyhill, Jones, Johnsons Grove, Oakview and Owl
City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3558 8907 3553 8907 3551 8943 3567 8947
      3568 8947 3579 8913
TIME...MOT...LOC 1731Z 257DEG 15KT 3562 8937

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 2:00 PM CDTAreal Flood AdvisoryMEGDeSoto, Marshall3 hr
Aug 13, 2:00 PM CDTSpecial Weather StatementMEGDeSoto45 min
Aug 13, 2:25 PM CDTSpecial Weather StatementMEGTippah, Union50 min
Aug 13, 2:51 PM CDTFlash Flood WarningMEGDeSoto3 hr
Aug 13, 4:26 PM CDTFlash Flood WarningMEGMarshall, Panola, Quitman, Tate3 hr
Aug 13, 5:08 PM CDTFlash Flood WarningMEGCoahoma, Panola, Quitman, Tallahatchie, Yalobusha3 hr
Aug 13, 5:16 PM CDTAreal Flood AdvisoryMEGItawamba, Lee3 hr
Aug 13, 12:07 PM CDTSpecial Weather StatementMEGHaywood23 min
Aug 13, 12:29 PM CDTSpecial Weather StatementMEGHaywood31 min
Aug 13, 12:59 PM CDTAreal Flood AdvisoryMEGCrockett, Haywood, Lauderdale, Tipton2 hr
Aug 13, 1:47 PM CDTAreal Flood AdvisoryMEGCrockett, Gibson, Madison3 hr
Aug 13, 1:18 AM CDTSpecial Weather StatementMEGCraighead27 min
Aug 13, 1:45 AM CDTAreal Flood AdvisoryMEGCraighead5 min
Aug 13, 1:50 AM CDTFlash Flood WarningMEGCraighead3 hr
Aug 13, 2:13 PM CDTSpecial Weather StatementMEGPoinsett47 min
Aug 13, 2:14 PM CDTSpecial Weather StatementMEGPoinsett46 min
Aug 13, 2:15 PM CDTSpecial Weather StatementMEGPoinsett45 min
Aug 13, 3:27 PM CDTSpecial Weather StatementMEGPoinsett33 min

Nearby

Special Weather Statements in Tennessee, 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.