Alert archive / Tennessee / Special Weather Statements in 2018
Special Weather Statement, NWS Nashville, TN
NWS Nashville, TN issued this special weather statement at Mar 19, 2018, 7:57 PM CDT for Cumberland County, Tennessee. It was in force for 48 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 19, 2018, 7:57 PM CDT (00:57 UTC)
- Expired
- Mar 19, 2018, 8:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Nashville, TN
County Cumberland County, TN
The radar
The Knoxville radar (KMRX), 144 km from the middle of the area, began a volume at 00:56 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, 1.0 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 405 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 507 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 1.4
The text
As transmitted.
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</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 19, 6:56 PM CDT, 1 hour 1 minute earlier.
Area forecast discussion, Mar 19, 6:56 PM CDT, 1 hour 1 minute before
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</html>Hazardous weather outlook, Mar 19, 5:07 AM CDT, 14 hours 50 minutes before
Hazardous Weather Outlook National Weather Service Nashville TN 507 AM CDT Mon Mar 19 2018 TNZ005>011-023>034-056>066-075-077>080-093>095-201000- 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- 507 AM CDT Mon Mar 19 2018 This Hazardous Weather Outlook is for portions of Middle Tennessee. .DAY ONE...Today and Tonight The development of severe thunderstorms is expected by the early afternoon hours across western portions of Middle Tennessee. The potential for development of severe thunderstorms will spread eastward into central portions of Middle Tennessee as the afternoon hours progress. The potential for severe thunderstorms will continue across eastern portions of Middle Tennessee including the Cumberland Plateau Region through the mid evening hours. Main threats from severe thunderstorms that do develop will be straight line damaging winds, large hail, and isolated strong tornadoes. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed this afternoon into the mid evening hours tonight. Spotter Thunderstorm Reporting Criteria Tornado Funnel Cloud Flooding Hail >= 1/2 inch Winds >50 mph (Measured) Structural Damage Trees or Powerlines Down 31
In the hours before
Local storm report, Mar 19, 6:52 PM CDT, 1 hour 5 minutes before
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</html>Special weather statement, Mar 19, 7:15 PM CDT, 42 minutes before
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</html>Local storm report, Mar 19, 7:17 PM CDT, 40 minutes before
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</html>Local storm report, Mar 19, 7:19 PM CDT, 38 minutes before
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</html>Special weather statement, Mar 19, 7:24 PM CDT, 33 minutes before
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</html>Special weather statement, Mar 19, 7:57 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 7:15 PM CDT | Special Weather Statement | OHX | Cannon, DeKalb | 30 min |
| Mar 19, 7:24 PM CDT | Special Weather Statement | OHX | White | 36 min |
| Mar 20, 2:04 AM CDT | Freeze Warning | OHX | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more | 32 hr |
| Mar 20, 2:59 AM CDT | Winter Weather Advisory | OHX | Clay, Cumberland, Fentress, Jackson, Macon, Overton and 4 more | 31 hr |
Nearby
Special Weather Statements in Tennessee, 2018Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.