Alert archive / Tennessee / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 18, NWS Nashville, TN

January 1, 2022Coffee County, Grundy County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jan 1, 2022, 6:14 PM CST for Coffee County, Grundy County, Tennessee. It was in force for 30 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
Jan 1, 2022, 6:14 PM CST (00:14 UTC)
Expired
Jan 1, 2022, 6:44 PM CST
In force
30 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Coffee County, TN, Grundy County, TN

The radar

The Northeast Alabama radar (KHTX), 59 km from the middle of the area, began a volume at 00:17 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.

IssuedProductOfficeLasted
Jan 1, 12:56 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.2 hours before the alert went out and 99 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, Nashville Metro, TN at 00:00Z on 2022-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Nashville Metro, TN at 00:00Z on 2022-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -302 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
-302 m²/s²
0-3 km storm-relative helicity
-54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 1, 4:28 PM CST, 1 hour 46 minutes earlier.

Area forecast discussion, Jan 1, 4:28 PM CST, 1 hour 46 minutes before
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Hazardous weather outlook, Jan 1, 5:20 AM CST, 12 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service Nashville TN
520 AM CST Sat Jan 1 2022

TNZ005>011-023>034-056>066-075-077>080-093>095-021130-
Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston-
Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson-
Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury-
Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee-
Warren-Grundy-Van Buren-Wayne-Lawrence-Giles-
520 AM CST Sat Jan 1 2022

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

As a stationary boundary just to our north continues to encounter
some increasingly unstable air, a few strong to severe thunderstorms
will be possible across far northern and northwestern middle
Tennessee through this morning. Strong to damaging winds, isolated
tornadoes, and some hail will be possible.

A Flood Watch remains in effect through 9 PM this evening mainly for
areas along and north of I-40 where heavy rain may lead to isolated
flooding. Up to 2 inches of rainfall will be possible across the
watch area.

A cold front will begin to approach the area late in the day. This
cold front will be working across a very warm and unstable airmass.
As a result, Severe thunderstorms will be possible from mid afternoon
and continue into this evening. Straight line damaging winds, large
hail and a few tornadoes will all be possible.

Look for wind speeds to average from 10 to 15 mph today. By
afternoon, some wind gusts of up to 35 mph will also be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

On Sunday, the rainshower activity will change over to snow showers
as colder air moves into the region. At this time, only very light
accumulation is possible to the west of the Cumberland Plateau.
Along the Cumberland Plateau however, a half inch or so of
accumulation will be possible, mainly on grassy areas. The warm
ground temperatures should prevent any major driving problems.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed. Please relay any
information about observed severe weather to the NWS while following
all local, state, and CDC guidelines.

21

In the hours before

Special weather statement, Jan 1, 3:44 PM CST, 2 hours 30 minutes before
Special Weather Statement
National Weather Service Nashville TN
344 PM CST Sat Jan 1 2022

TNZ060-061-094-095-012215-
Lawrence TN-Maury TN-Giles TN-Marshall TN-
344 PM CST Sat Jan 1 2022

...A strong thunderstorm will impact portions of southwestern
Marshall, east central Lawrence, southeastern Maury and northern
Giles Counties through 415 PM CST...

At 343 PM CST, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Lawrenceburg, moving northeast at 55 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...
Lewisburg, Cornersville, Lynnville and Culleoka.

This includes Interstate 65 between mile markers 26 and 39.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 600 PM CST for Middle
Tennessee.

&&

LAT...LON 3525 8722 3538 8727 3559 8680 3539 8671
TIME...MOT...LOC 2143Z 242DEG 47KT 3533 8716

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

Schaper
Special weather statement, Jan 1, 3:58 PM CST, 2 hours 16 minutes before
Special Weather Statement
National Weather Service Nashville TN
358 PM CST Sat Jan 1 2022

TNZ094-095-012230-
Lawrence TN-Giles TN-
358 PM CST Sat Jan 1 2022

...A strong thunderstorm will impact portions of southeastern
Lawrence and southern Giles Counties through 430 PM CST...

At 358 PM CST, Doppler radar was tracking a strong thunderstorm 7
miles east of Lexington, or 17 miles southwest of Pulaski, moving
east at 55 mph.

HAZARD...Winds in excess of 40 mph and half inch 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...
Pulaski, Ardmore, Elkton, Minor Hill, Frankewing and Prospect.

This includes Interstate 65 between mile markers 1 and 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 600 PM CST for Middle
Tennessee.

&&

LAT...LON 3500 8731 3507 8731 3522 8683 3499 8684
TIME...MOT...LOC 2158Z 248DEG 50KT 3500 8724

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Schaper
Special weather statement, Jan 1, 4:17 PM CST, 1 hour 57 minutes before
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Special weather statement, Jan 1, 5:02 PM CST, 1 hour 12 minutes before
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Special weather statement, Jan 1, 5:14 PM CST, 1 hour before
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Special weather statement, Jan 1, 5:35 PM CST, 39 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 6:00 PM CSTSevere Thunderstorm WarningOHXCumberland, Grundy, Van Buren, Warren, White30 min
Jan 1, 6:28 PM CSTSevere Thunderstorm WarningOHXCumberland47 min
Jan 2, 3:09 AM CSTWinter Weather AdvisoryOHXBedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more24 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2022Every 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.