Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Nashville, TN

January 25, 2021Hickman County, Perry County, Tennessee

NWS Nashville, TN issued this special weather statement at Jan 25, 2021, 6:14 PM CST for Hickman County, Perry County, Tennessee. It was in force for 46 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: Jan 25, 2021, 6:14 PM CST (00:14 UTC)
Expired: Jan 25, 2021, 7:00 PM CST
In force: 46 min
Issued by: NWS Nashville, TN

Counties Hickman County, TN, Perry County, TN

The radar

The Ft Campbell radar (KHPX), 125 km from the middle of the area, began a volume at 00:15 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

Nashville Metro, TN (KBNA), launched 00:00Z, 0.2 hours before the alert went out and 117 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 548 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 654 m²/s²
0-3 km storm-relative helicity: 735 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

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 Nashville, TN wrote its last area forecast discussion before this special weather statement went out at Jan 25, 5:35 PM CST, 39 minutes earlier.

Area forecast discussion, Jan 25, 5:35 PM CST, 39 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
535 PM CST Mon Jan 25 2021

.UPDATE...
FOR 00Z AVIATION DISCUSSION.

&&

.DISCUSSION...

A line of heavy showers is currently moving across Middle
Tennessee mainly north of I-40. These showers earlier produced
some strong winds at the surface, but they have since diminished
somewhat. An ACARS sounding for BNA taken at 1709Z shows very
little CAPE with nearly total saturation from the surface up to
about 650 mb. There is some speed and directional shear in the
low-levels, but at this time helicities aren't excessive. A warm
front that moved northward through Middle Tennessee overnight has
become quasi-stationary near the TN/KY border, so most of Middle
Tennessee is now in the warm, moist sector. A pre-frontal trough
will swing through the mid state later this afternoon and evening,
and this will provide some focus for the expected storms. The HRRR
does suggest some convective organization along this boundary, but
given the lack of instability in this air mass, it still appears
that the primary threats are going to be wind-related. SPC
currently gives us a 5% risk of damaging winds and a 2% risk of
tornadoes in the marginal/slight risk area, which covers nearly
all of Middle Tennessee. Even though the bulk of the active
weather will move across and exit the mid state overnight, the
cold front won't actually arrive until Wednesday. That's going to
be our next chance of rain, with perhaps some snow for the
Cumberland Plateau Wednesday night. (It's going to be another
battle of cold air vs. moisture.) After that, look for cooler
temperatures the remainder of the week, with perhaps a weekend
cold front representing our next chance of rain.

&&

.AVIATION...
00Z TAF DISCUSSION.

Showers and occasional storms will impact BNA/MQY/CSV through the
evening which will reduce vis to IFR conditions periodically. A
surface front will move through the area from west to east which
will shut off rain chances by 07z. Cigs will gradually improve to
VFR for the remainder of the taf period by the morning. Behind
the surface front winds will shift to the WSW.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

DISCUSSION......08
AVIATION........Reagan

Hazardous weather outlook, Jan 25, 4:00 AM CST, 14 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
400 AM CST Mon Jan 25 2021

TNZ005>011-023>034-056>066-075-077>080-093>095-261130-
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-
400 AM CST Mon Jan 25 2021

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

Isolated strong to severe thunderstorms are possible this afternoon
and early evening. A quick spinup is even possible. Locally heavy
rain may still occur, with a small chance of localized minor
flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible later today.

07

In the hours before

Special weather statement, Jan 25, 2:40 PM CST, 3 hours 34 minutes before

Special Weather Statement
National Weather Service Nashville TN
240 PM CST Mon Jan 25 2021

TNZ011-031-033-034-252130-
Fentress TN-Overton TN-Pickett TN-Jackson TN-
240 PM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL OVERTON...PICKETT...EAST
CENTRAL JACKSON AND FENTRESS COUNTIES UNTIL 330 PM CST...

At 240 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Byrdstown to near Gainesboro. Movement
was east at 55 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Livingston, Jamestown, Byrdstown, Allardt, Pall Mall and Pickett
State Park.

LAT...LON 3639 8469 3637 8470 3638 8472 3637 8473
      3635 8473 3635 8474 3634 8474 3633 8477
      3630 8480 3629 8487 3631 8569 3640 8549
      3662 8509 3660 8479 3654 8474 3643 8469
      3640 8466
TIME...MOT...LOC 2040Z 269DEG 48KT 3663 8504 3634 8559

Shamburger

Local storm report, Jan 25, 4:38 PM CST, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
438 PM CST MON JAN 25 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1219 PM     TSTM WND GST     CLARKSVILLE             36.56N  87.35W
01/25/2021  M55 MPH          MONTGOMERY         TN   ASOS

            THE ASOS AT CLARKSVILLE AIRPORT REPORTED A WIND GUST OF
            48 KTS.

1226 PM     TSTM WND DMG     5 N PORT ROYAL          36.62N  87.14W
01/25/2021                   MONTGOMERY         TN   EMERGENCY MNGR

            PART OF METAL ROOF BLOWN OFF A HOME AND A COUPLE OF
            TREES DOWN AT 4672 MCGREGOR ROAD.

&&

EVENT NUMBER OHX2100059 OHX2100060

Shamburger

Special weather statement, Jan 25, 5:04 PM CST, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Nashville TN
504 PM CST Mon Jan 25 2021

TNZ008-027>029-252330-
Davidson TN-Wilson TN-Trousdale TN-Sumner TN-
504 PM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL DAVIDSON...SOUTHEASTERN
SUMNER...NORTHERN WILSON AND SOUTHWESTERN TROUSDALE COUNTIES UNTIL
530 PM CST...

At 504 PM CST, Doppler radar was tracking a strong thunderstorm over
the Green Hills area of southwest Nashville, moving east at 70 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Lebanon, Nashville, Hendersonville, Mount Juliet, Forest Hills, Oak
Hill, Belle Meade, Lakewood, Hermitage, Belinda City, Old Hickory,
Rural Hill, Berry Hill, Green Hill, Tuckers Crossroads, Dickerson
Chapel Recreation Area and Percy Priest Lake.

This includes the following highways...
 Interstate 40 between mile markers 202 and 244.
 Interstate 65 between mile markers 79 and 87.
 Interstate 24 between mile markers 47 and 54.
 Interstate 840 between mile markers 75 and 76.

LAT...LON 3608 8686 3616 8690 3642 8624 3620 8612
TIME...MOT...LOC 2304Z 250DEG 60KT 3614 8681

Shamburger

Special weather statement, Jan 25, 5:28 PM CST, 46 minutes before

Special Weather Statement
National Weather Service Nashville TN
528 PM CST Mon Jan 25 2021

TNZ056>058-060-093-260000-
Hickman TN-Wayne TN-Lewis TN-Maury TN-Perry TN-
528 PM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR LEWIS...NORTHWESTERN WAYNE...WEST
CENTRAL MAURY...PERRY AND HICKMAN COUNTIES UNTIL 600 PM CST...

At 527 PM CST, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from Linden to Clifton.
Movement was northeast at 70 mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Hohenwald, Centerville, Linden, Lobelville, Gordonsburg, Kimmins,
Mousetail Landing State Park, Hampshire, Pleasantville, Primm
Springs, Flatwoods and Nunnelly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3547 8802 3548 8799 3551 8798 3553 8798
      3562 8804 3566 8802 3572 8804 3576 8799
      3592 8722 3548 8729 3540 8794 3539 8802
      3540 8798 3541 8797 3541 8798 3543 8803
      3545 8804
TIME...MOT...LOC 2327Z 242DEG 59KT 3562 8782 3545 8803

Shamburger

Special weather statement, Jan 25, 5:54 PM CST, 20 minutes before

Special Weather Statement
National Weather Service Nashville TN
554 PM CST Mon Jan 25 2021

TNZ024-025-260030-
Dickson TN-Humphreys TN-
554 PM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL DICKSON AND EAST CENTRAL
HUMPHREYS COUNTIES UNTIL 630 PM CST...

At 554 PM CST, Doppler radar was tracking a strong thunderstorm near
Waverly, moving east at 65 mph.

Pea to half inch size hail and winds in excess of 40 mph will be
possible with this storm.

Locations impacted include...
Dickson, Waverly, White Bluff, McEwen and Charlotte.

LAT...LON 3597 8777 3608 8782 3627 8727 3611 8718
TIME...MOT...LOC 2354Z 247DEG 56KT 3605 8771

Shamburger

Special weather statement, Jan 25, 6:14 PM CST, 0 minutes before

Special Weather Statement
National Weather Service Nashville TN
614 PM CST Mon Jan 25 2021

TNZ024-056-057-260100-
Hickman TN-Humphreys TN-Perry TN-
614 PM CST Mon Jan 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR PERRY...SOUTHEASTERN HUMPHREYS
AND WESTERN HICKMAN COUNTIES UNTIL 700 PM CST...

At 614 PM CST, Doppler radar was tracking a strong thunderstorm over
Parsons, or 12 miles southeast of Natchez Trace State Forest, moving
east at 45 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Centerville, Linden, Lobelville, Mousetail Landing State Park,
Pinewood, Pleasantville, Nunnelly and Bucksnort.

This includes Interstate 40 between mile markers 147 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 100 AM CST for Middle
Tennessee.

LAT...LON 3566 8802 3572 8804 3577 8799 3598 8750
      3568 8737 3564 8756 3565 8757 3565 8759
      3564 8761 3556 8800 3562 8804
TIME...MOT...LOC 0014Z 251DEG 38KT 3563 8809

Shamburger

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 25, 6:18 PM CST	Severe Thunderstorm Warning	OHX	Cannon, Davidson, Maury, Rutherford, Williamson, Wilson	42 min
Jan 25, 6:59 PM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Maury, Williamson	31 min
Jan 25, 7:21 PM CST	Special Weather Statement	OHX	Williamson	39 min
Jan 25, 7:51 PM CST	Areal Flood Advisory	OHX	Davidson, Dickson, Hickman, Williamson	5 hr
Jan 25, 8:18 PM CST	Special Weather Statement	OHX	Smith, Wilson	27 min
Jan 25, 8:39 PM CST	Special Weather Statement	OHX	Wilson	36 min
Jan 25, 9:10 PM CST	Areal Flood Advisory	OHX	Maury, Rutherford, Williamson, Wilson	2 hr
Jan 25, 9:21 PM CST	Special Weather Statement	OHX	Cannon, Rutherford	24 min
Jan 25, 9:28 PM CST	Special Weather Statement	OHX	Putnam	32 min
Jan 25, 9:36 PM CST	Special Weather Statement	OHX	Bedford	24 min
Jan 25, 9:55 PM CST	Special Weather Statement	OHX	Bedford, Coffee	35 min
Jan 26, 8:08 AM CST	River Flood Advisory	OHX	Montgomery, Robertson	6 hr

Nearby

Special Weather Statements in Tennessee, 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.