Alert archive / Tennessee / Special Weather Statements in 2018

Special Weather Statement, NWS Nashville, TN

July 20, 2018Van Buren County, Tennessee

NWS Nashville, TN issued this special weather statement at Jul 20, 2018, 10:40 PM CDT for Van Buren County, Tennessee. It was in force for 35 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 20, 2018, 10:40 PM CDT (03:40 UTC)
Expired: Jul 20, 2018, 11:15 PM CDT
In force: 35 min
Issued by: NWS Nashville, TN

County Van Buren County, TN

The radar

The Northeast Alabama radar (KHTX), 125 km from the middle of the area, began a volume at 03:43 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 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 Jul 20, 4:32 PM CDT, 6 hours 8 minutes earlier.

Area forecast discussion, Jul 20, 4:32 PM CDT, 6 hours 8 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
432 PM CDT Fri Jul 20 2018

.DISCUSSION...

Updated late this afternoon wording in zone forecast product to
emphasize most of the potential impacts of shwrs/tstms, some tstms
possibly svr, after 7/21Z (7 PM CDT Tonight). Tweaked hrly temp,
dewpoint, and wind speed/direction grids. Initially, remainder of
the forecast looks like it continues to be on track.

&&

.AVIATION...
18Z TAF DISCUSSION.

BNA/MQY/CKV/CSV...Last couple of runs of the HRRR are starting to
hone in on a 20Z to 00Z window for a line of strong to severe
storms to move across Middle Tennessee. So the 18Z TAF's will
reflect these times for afternoon and early evening convection.
There may be more isolated activity later in the evening and
possibly overnight, but not definitive enough yet to mention in
the forecast. Look for a wind shift late tonight or early Saturday
morning as the actual surface boundary pushes through the mid
state.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      73  89  71  85  70 /  60  20  20  60  30
Clarksville    71  88  69  83  68 /  50  10  10  50  20
Crossville     68  81  66  76  64 /  60  50  30  60  40
Columbia       72  88  69  84  68 /  60  20  10  50  30
Lawrenceburg   71  88  68  84  67 /  60  20  10  50  40
Waverly        71  88  69  84  68 /  70  10   0  50  20

&&

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

&&

DISCUSSION......31
AVIATION........19

Hazardous weather outlook, Jul 20, 6:02 PM CDT, 4 hours 38 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
602 PM CDT Fri Jul 20 2018

TNZ005>011-023>034-056>066-075-077>080-093>095-210900-
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-
602 PM CDT Fri Jul 20 2018

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Tonight

There is a moderate risk for severe thunderstorms tonight for
locations generally around and north of I-40 and generally along
and west of I-65. There is an enhanced risk for severe
thunderstorms for the remainder of Middle Tennessee. Scattered to
numerous showers and thunderstorms are expected to develop through
the evening hours across southern Kentucky, then spread
southeastward across Middle Tennessee into this evening and tonight.
With severe thunderstorms that do develop, large hail, damaging
winds, frequent cloud to ground lightning strikes, isolated
tornadoes, and brief heavy rainfall will be possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There is a slight risk for severe thunderstorms across the
southeast half of Middle Tennessee on Saturday afternoon into
Saturday evening. There is a marginal risk for the rest of the
mid state region Saturday afternoon into Saturday evening.
A few strong to severe thunderstorms containing damaging winds
and or large hail will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested for tonight and might once again
be needed Saturday afternoon into Saturday evening across Middle
Tennessee.

Spotter Thunderstorm Reporting Criteria...

Tornado
Funnel Cloud
Flooding
Hail >= 1/2 inch
Wind > 50 mph (measured)
Structural Damage
Trees or power lines down

31

In the hours before

Special weather statement, Jul 20, 6:47 PM CDT, 3 hours 53 minutes before

Special Weather Statement
National Weather Service Nashville TN
647 PM CDT FRI JUL 20 2018

TNZ010-011-034-210030-
Fentress TN-Pickett TN-Clay TN-
647 PM CDT FRI JUL 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR PICKETT...NORTHERN CLAY AND NORTH
CENTRAL FENTRESS COUNTIES UNTIL 730 PM CDT...

At 645 PM CDT, Doppler radar was tracking strong to severe
thunderstorms along a line extending from near Tompkinsville to 6
miles west of Albany. Movement was east at 35 mph. These storms
were also showing some development southward into Tennessee.

If these storms continue to develop southward, half inch hail and
winds in excess of 50 mph will be possible with these storms.
Severe thunderstorm warnings may be needed.

Locations impacted include...
Celina, Byrdstown, Wolf River Dock, Moss, Dale Hollow Lake, Pall
Mall, Pickett State Park, Boles and Ashlock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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 200 AM CDT for Middle
Tennessee.

LAT...LON 3660 8479 3653 8474 3654 8573 3662 8579
      3663 8523
TIME...MOT...LOC 2345Z 283DEG 30KT 3666 8567 3666 8525

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 7:12 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Fentress, Jackson, Overton, Pickett	48 min
Jul 20, 7:27 PM CDT	Severe Thunderstorm Warning	OHX	Clay	33 min
Jul 20, 7:46 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	44 min
Jul 20, 7:56 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton, Pickett	49 min
Jul 20, 8:23 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Overton, Putnam, White	52 min
Jul 20, 8:34 PM CDT	Tornado Warning	OHX	Cumberland, Fentress, Overton, Putnam	26 min
Jul 20, 8:47 PM CDT	Tornado Warning	OHX	Cumberland, Putnam, White	28 min
Jul 20, 8:52 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Putnam, White	23 min
Jul 20, 9:10 PM CDT	Tornado Warning	OHX	Cumberland, White	35 min
Jul 20, 9:14 PM CDT	Severe Thunderstorm Warning	OHX	Overton, Putnam, White	46 min
Jul 20, 9:44 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	46 min
Jul 20, 9:48 PM CDT	Areal Flood Advisory	OHX	Cumberland, Putnam, White	3 hr
Jul 20, 10:20 PM CDT	Special Weather Statement	OHX	Pickett	40 min
Jul 20, 11:25 PM CDT	Special Weather Statement	OHX	Cumberland	35 min
Jul 20, 11:48 PM CDT	Special Weather Statement	OHX	Jackson, Overton	42 min
Jul 21, 12:02 AM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	28 min
Jul 21, 12:15 AM CDT	Special Weather Statement	OHX	Clay, Fentress, Macon, Pickett	45 min
Jul 21, 12:27 AM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	33 min
Jul 21, 12:39 AM CDT	Special Weather Statement	OHX	Trousdale	51 min
Jul 21, 12:48 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Putnam	57 min
Jul 21, 12:52 AM CDT	Areal Flood Advisory	OHX	Jackson, Overton, Putnam	2 hr
Jul 21, 1:01 AM CDT	Special Weather Statement	OHX	Jackson, Overton, Putnam, Smith	44 min
Jul 21, 1:21 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Smith, Sumner, Trousdale, Wilson	39 min
Jul 21, 1:53 AM CDT	Areal Flood Advisory	OHX	DeKalb, Smith, Wilson	2 hr
Jul 21, 2:04 AM CDT	Special Weather Statement	OHX	Cannon, DeKalb, Van Buren, Warren, White, Wilson	56 min
Jul 21, 2:38 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	52 min
Jul 21, 2:55 AM CDT	Special Weather Statement	OHX	Macon, Sumner	65 min
Jul 21, 3:38 AM CDT	Special Weather Statement	OHX	Smith, Trousdale, Wilson	67 min
Jul 21, 4:52 AM CDT	Special Weather Statement	OHX	DeKalb	23 min
Jul 21, 5:04 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, Van Buren, White	28 min
Jul 21, 5:31 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, Warren, White	29 min
Jul 21, 7:35 AM CDT	Special Weather Statement	OHX	Putnam	40 min

Nearby

Special Weather Statements in Tennessee, 2018 Every special weather statement in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.