Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

July 16, 2021Haywood County, Tennessee

NWS Memphis, TN issued this special weather statement at Jul 16, 2021, 3:21 PM CDT for Haywood County, Tennessee. It was in force for 24 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
Jul 16, 2021, 3:21 PM CDT (20:21 UTC)
Expired
Jul 16, 2021, 3:45 PM CDT
In force
24 min
Issued by
NWS Memphis, TN

County Haywood County, TN

The radar

The Memphis radar (KNQA), 53 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 88 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 2021-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 681 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2021-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
681 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
567 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WWUS84 KMEG 162021
SPSMEG

Special Weather Statement
National Weather Service Memphis TN
321 PM CDT Fri Jul 16 2021
 
TNZ049-050-089-162045-
Tipton TN-Fayette TN-Haywood TN-
321 PM CDT Fri Jul 16 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 345 PM CDT
FOR...

East central Tipton County in western Tennessee...
Northeastern Fayette County in western Tennessee...
Southwestern Haywood County in western Tennessee...

At 321 PM CDT...a strong thunderstorm producing winds at least 40 mph
was located 9 miles west of Dancyville, or 17 miles southeast of
Covington, moving east at 25 mph.

Very heavy rain is also possible with this thunderstorm.

People in east central Tipton...northeastern Fayette and southwestern
Haywood Counties should monitor this storm closely.

LAT...LON 3541 8918 3523 8919 3526 8954 3553 8950
      3564 8918
TIME...MOT...LOC 2021Z 263DEG 21KT 3537 8945 

$$

SWB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 1:33 PM CDTSpecial Weather StatementMEGCalhoun27 min
Jul 16, 1:57 PM CDTSpecial Weather StatementMEGPontotoc33 min
Jul 16, 2:27 PM CDTSpecial Weather StatementMEGChickasaw33 min
Jul 16, 2:56 PM CDTSpecial Weather StatementMEGItawamba, Lee, Monroe34 min
Jul 16, 3:07 PM CDTSpecial Weather StatementMEGMonroe53 min
Jul 16, 5:02 PM CDTSpecial Weather StatementMEGDeSoto28 min
Jul 16, 1:58 PM CDTSpecial Weather StatementMEGShelby32 min
Jul 16, 3:48 PM CDTSpecial Weather StatementMEGHaywood, Madison27 min
Jul 16, 4:22 PM CDTSpecial Weather StatementMEGFayette38 min
Jul 16, 1:27 PM CDTSpecial Weather StatementMEGCrittenden33 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.