Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Nashville, TN

March 27, 2021Coffee County, Tennessee

NWS Nashville, TN issued this special weather statement at Mar 27, 2021, 1:32 PM CDT for Coffee County, Tennessee. It was in force for 43 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: Mar 27, 2021, 1:32 PM CDT (18:32 UTC)
Expired: Mar 27, 2021, 2:15 PM CDT
In force: 43 min
Issued by: NWS Nashville, TN

County Coffee County, TN

The radar

The Northeast Alabama radar (KHTX), 52 km from the middle of the area, began a volume at 18:34 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.5 hours before the alert went out and 90 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: 710 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 347 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Mar 27, 12:10 PM CDT, 1 hour 22 minutes earlier.

Area forecast discussion, Mar 27, 12:10 PM CDT, 1 hour 22 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
1210 PM CDT Sat Mar 27 2021

.UPDATE...
FOR 18Z AVIATION DISCUSSION.

&&

.DISCUSSION...

Pretty significant severe storm and flood threat continues across
the mid-state today and tonight. Warm front currently located
across our southern counties very slowly lifting northward, and
fairly widespread showers/storms continue along/near it. Rainfall
rates have trended less last hour but that trend likely not to
continue in the afternoon. Some CAMs really going very high on
amounts of rain through this event, and many places already above
an inch now. HRRR also showing supercells across our south in the
afternoon, when low-level jet gets a bit stronger, so SVR/flood
potential will pick up again. So all-in-all, busy day and night
ahead.

&&

.AVIATION...
18Z TAF DISCUSSION.

Fluctuations in cigs and vis throughout the TAF period as
SHRA/TSRA moves through much of the area. Tried to time the
heaviest bands down, but amendments will likely be necessary.
Wouldn't be surprised to see a few periods of cigs to VFR, but
MVFR or lower is expected through much of today and early
tomorrow. Southerly winds will begin to become more northerly by
28/12Z. Showers will begin to clear the area between 12Z to the
west and 18Z the east with cigs increasing thereafter.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through Sunday evening for Bedford-Cannon-
Cheatham-Clay-Coffee-Cumberland-Davidson-De Kalb-Dickson-
Fentress-Giles-Grundy-Hickman-Houston-Humphreys-Jackson-Lawrence-
Lewis-Macon-Marshall-Maury-Montgomery-Overton-Perry-Pickett-
Putnam-Robertson-Rutherford-Smith-Stewart-Sumner-Trousdale-Van
Buren-Warren-Wayne-White-Williamson-Wilson.

&&

DISCUSSION......07
AVIATION........Adcock

Hazardous weather outlook, Mar 27, 12:29 PM CDT, 1 hour 3 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
1229 PM CDT Sat Mar 27 2021

TNZ005>011-023>034-056>066-075-077>080-093>095-281730-
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-
1229 PM CDT Sat Mar 27 2021

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...This afternoon and tonight.

Severe thunderstorms will be possible across all of Middle
Tennessee this afternoon into tonight. Damaging winds, large hail,
and isolated tornadoes will all be possible. Additional rounds of
heavy rainfall expected through tonight and overnight. Additional
rainfall amounts of 1 to 4 inches, with locally higher amounts of 5
to 6 inches, expected on already saturated ground conditions.

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

River impacts from rainfall today and early Sunday morning will be
possible. Some local rivers are expected to reach up to moderate
flood stage by early next week.

.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.

09

In the hours before

Special weather statement, Mar 27, 8:39 AM CDT, 4 hours 53 minutes before

Special Weather Statement
National Weather Service Nashville TN
839 AM CDT Sat Mar 27 2021

TNZ031>034-066-271430-
Putnam TN-Cumberland TN-Fentress TN-Overton TN-Jackson TN-
839 AM CDT Sat Mar 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR OVERTON...NORTH CENTRAL
CUMBERLAND...SOUTHEASTERN JACKSON...CENTRAL PUTNAM AND SOUTHWESTERN
FENTRESS COUNTIES UNTIL 930 AM CDT...

At 839 AM CDT, Doppler radar was tracking a strong thunderstorm near
Baxter, or near Cookeville, moving east at 55 mph.

Nickel size hail will be possible with this storm.

Locations impacted include...
Cookeville, Livingston, Jamestown, Algood, Monterey, Allardt,
Grimsley, Clarkrange, Crawford, Rickman and Cummins Falls State Park.

This includes Interstate 40 between mile markers 283 and 303.

LAT...LON 3613 8558 3636 8555 3643 8483 3629 8481
      3630 8482 3628 8488 3624 8488 3621 8491
      3618 8490 3615 8491 3613 8487 3609 8483
      3610 8482 3608 8480 3609 8488
TIME...MOT...LOC 1339Z 266DEG 46KT 3621 8560

Whitehead

Special weather statement, Mar 27, 11:08 AM CDT, 2 hours 24 minutes before

Special Weather Statement
National Weather Service Nashville TN
1108 AM CDT Sat Mar 27 2021

TNZ059>062-075-271700-
Rutherford TN-Williamson TN-Bedford TN-Maury TN-Marshall TN-
1108 AM CDT Sat Mar 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MARSHALL...SOUTHWESTERN
RUTHERFORD...SOUTHEASTERN MAURY...SOUTHEASTERN WILLIAMSON AND
NORTHWESTERN BEDFORD COUNTIES UNTIL NOON CDT...

At 1108 AM CDT, Doppler radar was tracking a strong thunderstorm near
Columbia, moving east at 45 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Murfreesboro, Columbia, Shelbyville, Lewisburg, Spring Hill, Chapel
Hill, Eagleville, Culleoka, I-65 East Of Columbia, Rover, Deason,
Rockvale, Farmington and Unionville.

This includes the following highways...
 Interstate 65 between mile markers 34 and 53.
 Interstate 24 between mile markers 76 and 78.

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.

&&

LAT...LON 3546 8703 3568 8711 3589 8643 3549 8641
TIME...MOT...LOC 1608Z 252DEG 38KT 3557 8694

Whitehead

Local storm report, Mar 27, 11:25 AM CDT, 2 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1125 AM CDT SAT MAR 27 2021

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

1123 AM     FLOOD            2 ESE SPRING HILL       35.73N  86.89W
03/27/2021                   MAURY              TN   EMERGENCY MNGR

            SOME ROADS CLOSED IN MAURY COUNTY DUE TO HIGH WATER
            INCLUDING PORT ROYAL ROAD TO TOM LUNN IN SPRING HILL AND
            RICE RD AT DERRYBERRY LN.

&&

EVENT NUMBER OHX2100330

CMA

Special weather statement, Mar 27, 11:51 AM CDT, 1 hour 41 minutes before

Special Weather Statement
National Weather Service Nashville TN
1151 AM CDT Sat Mar 27 2021

TNZ059>062-075-271730-
Rutherford TN-Williamson TN-Bedford TN-Maury TN-Marshall TN-
1151 AM CDT Sat Mar 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MARSHALL...SOUTHWESTERN
RUTHERFORD...SOUTHEASTERN MAURY...SOUTHEASTERN WILLIAMSON AND
NORTHERN BEDFORD COUNTIES UNTIL 1230 PM CDT...

At 1151 AM CDT, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Spring Hill, or 11 miles north of Lewisburg,
moving east at 40 mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Murfreesboro, Columbia, Chapel Hill, Eagleville, Bell Buckle,
Christiana, I-65 East Of Columbia, Fosterville, Rover, Deason,
Rockvale, Unionville and Farmington.

This includes the following highways...
 Interstate 65 between mile markers 34 and 49.
 Interstate 24 between mile markers 76 and 79.

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.

&&

LAT...LON 3544 8695 3566 8696 3588 8644 3560 8633
TIME...MOT...LOC 1651Z 249DEG 37KT 3561 8684

Whitehead

Special weather statement, Mar 27, 12:53 PM CDT, 39 minutes before

Special Weather Statement
National Weather Service Nashville TN
1253 PM CDT Sat Mar 27 2021

TNZ061-075-271845-
Bedford TN-Marshall TN-
1253 PM CDT Sat Mar 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MARSHALL AND BEDFORD
COUNTIES UNTIL 145 PM CDT...

At 1253 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lewisburg, moving northeast at 40 mph.

Pea size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Shelbyville, Lewisburg, Petersburg, Cornersville, Wartrace, Bell
Buckle, Belfast, Deason and Farmington.

This includes Interstate 65 between mile markers 31 and 33.

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.

&&

LAT...LON 3529 8683 3532 8685 3533 8685 3546 8689
      3563 8641 3562 8640 3565 8634 3542 8629
      3535 8653 3536 8654 3537 8659 3536 8660
      3533 8660 3526 8683
TIME...MOT...LOC 1753Z 246DEG 36KT 3538 8681

Whitehead

Special weather statement, Mar 27, 1:32 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Nashville TN
132 PM CDT Sat Mar 27 2021

TNZ075-077>079-271915-
Bedford TN-Coffee TN-Grundy TN-Warren TN-
132 PM CDT Sat Mar 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN WARREN...COFFEE...
SOUTHEASTERN BEDFORD AND NORTHWESTERN GRUNDY COUNTIES UNTIL 215 PM
CDT...

At 132 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southeast of Shelbyville, moving northeast at 45 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Shelbyville, Manchester, Tullahoma, Altamont, Morrison, Wartrace,
Normandy, Viola, Hillsboro, Raus, Summitville and Arnold AFB.

This includes Interstate 24 between mile markers 102 and 124.

LAT...LON 3532 8644 3548 8647 3570 8584 3536 8576
      3533 8602 3534 8603 3536 8616 3534 8620
      3535 8623 3534 8626 3536 8625 3537 8628
      3538 8625 3539 8628 3541 8625 3541 8628
      3538 8633 3536 8633 3535 8641 3532 8641
TIME...MOT...LOC 1832Z 246DEG 40KT 3540 8636

Whitehead

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 8:18 PM CDT	River Flood Advisory	OHX	Perry	26 hr
Mar 27, 4:23 AM CDT	Special Weather Statement	OHX	Hickman, Lewis, Perry	37 min
Mar 27, 4:56 AM CDT	Special Weather Statement	OHX	Dickson, Hickman, Houston, Humphreys	49 min
Mar 27, 4:59 AM CDT	Special Weather Statement	OHX	Lewis	46 min
Mar 27, 5:12 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Perry	37 min
Mar 27, 5:29 AM CDT	Special Weather Statement	OHX	Cheatham, Davidson	31 min
Mar 27, 5:48 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury, Williamson	27 min
Mar 27, 5:52 AM CDT	Special Weather Statement	OHX	DeKalb	38 min
Mar 27, 6:13 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	32 min
Mar 27, 6:17 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Humphreys, Williamson	29 min
Mar 27, 6:18 AM CDT	Special Weather Statement	OHX	Macon, Robertson, Sumner, Trousdale	27 min
Mar 27, 6:22 AM CDT	Special Weather Statement	OHX	Jackson	38 min
Mar 27, 6:23 AM CDT	Special Weather Statement	OHX	Cumberland, White	52 min
Mar 27, 6:38 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Sumner, Williamson, Wilson	52 min
Mar 27, 6:42 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Maury, Sumner and 1 more	48 min
Mar 27, 6:53 AM CDT	Special Weather Statement	OHX	Cumberland, Putnam, White	52 min
Mar 27, 7:19 AM CDT	Severe Thunderstorm Warning	OHX	Jackson, Macon, Smith, Trousdale, Wilson	41 min
Mar 27, 7:21 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	39 min
Mar 27, 7:36 AM CDT	Areal Flood Advisory	OHX	Cheatham, Dickson, Hickman, Humphreys, Perry, Williamson	3 hr
Mar 27, 7:42 AM CDT	Special Weather Statement	OHX	Smith, Williamson, Wilson	48 min
Mar 27, 7:57 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton, Putnam, Smith	33 min
Mar 27, 8:02 AM CDT	Severe Thunderstorm Warning	OHX	Maury, Rutherford, Williamson	43 min
Mar 27, 8:10 AM CDT	Areal Flood Advisory	OHX	Hickman, Lewis, Maury, Perry, Wayne, Williamson	3 hr
Mar 27, 8:26 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Overton, Pickett	34 min
Mar 27, 8:29 AM CDT	Areal Flood Advisory	OHX	Cannon, Clay, Davidson, DeKalb, Jackson, Macon and 9 more	3 hr
Mar 27, 8:39 AM CDT	Special Weather Statement	OHX	Fentress, Overton, Putnam	51 min
Mar 27, 8:41 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton, Putnam	34 min
Mar 27, 8:59 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	16 min
Mar 27, 10:33 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Maury	42 min
Mar 27, 11:08 AM CDT	Special Weather Statement	OHX	Bedford, Maury	52 min
Mar 27, 11:19 AM CDT	Areal Flood Advisory	OHX	Bedford, Giles, Hickman, Lawrence, Lewis, Marshall and 5 more	3 hr
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Hickman	10 hr
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Humphreys	4 days
Mar 27, 11:42 AM CDT	River Flood Advisory	OHX	Maury	15 hr
Mar 27, 11:51 AM CDT	Special Weather Statement	OHX	Bedford	39 min
Mar 27, 12:14 PM CDT	Flash Flood Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	3 hr
Mar 27, 12:41 PM CDT	River Flood Advisory	OHX	Hickman	12 hr
Mar 27, 12:42 PM CDT	River Flood Advisory	OHX	Sumner, Trousdale, Wilson	23 hr
Mar 27, 12:53 PM CDT	Special Weather Statement	OHX	Bedford, Marshall	52 min
Mar 27, 1:15 PM CDT	Flash Flood Warning	OHX	Bedford, Giles, Marshall, Maury, Rutherford	3 hr
Mar 27, 2:04 PM CDT	Areal Flood Advisory	OHX	Giles, Lawrence, Wayne	3 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Cheatham	52 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Davidson, Williamson	47 hr
Mar 27, 2:37 PM CDT	River Flood Warning	OHX	Williamson	48 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Stewart	31 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Montgomery	31 hr
Mar 27, 3:30 PM CDT	River Flood Advisory	OHX	Davidson	12 hr
Mar 27, 4:14 PM CDT	Special Weather Statement	OHX	Cumberland	46 min
Mar 27, 4:45 PM CDT	River Flood Advisory	OHX	Bedford	11 hr
Mar 27, 4:54 PM CDT	Tornado Warning	OHX	Hickman, Perry	36 min
Mar 27, 5:17 PM CDT	Tornado Warning	OHX	Hickman, Perry	28 min
Mar 27, 5:33 PM CDT	Tornado Warning	OHX	Hickman, Lewis, Perry	27 min
Mar 27, 5:39 PM CDT	Areal Flood Advisory	OHX	Hickman, Lewis, Perry	3 hr
Mar 27, 5:39 PM CDT	Tornado Warning	OHX	Hickman, Perry	36 min
Mar 27, 5:52 PM CDT	Special Weather Statement	OHX	Clay, Fentress, Overton, Pickett	38 min
Mar 27, 6:00 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury	45 min
Mar 27, 6:04 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	11 min
Mar 27, 6:09 PM CDT	Flash Flood Warning	OHX	Hickman, Lewis, Maury, Perry	3 hr
Mar 27, 6:18 PM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	42 min
Mar 27, 6:28 PM CDT	Special Weather Statement	OHX	Fentress	17 min
Mar 27, 6:38 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Rutherford, Williamson	22 min
Mar 27, 6:44 PM CDT	Flash Flood Warning	OHX	Maury, Williamson	3 hr
Mar 27, 6:59 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	46 min

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.