Alert archive / Tennessee / Special Weather Statements in 2017
Special Weather Statement, NWS Morristown, TN
NWS Morristown, TN issued this special weather statement at Mar 1, 2017, 3:03 PM EST for 5 counties in Tennessee. It was in force for 57 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 1, 2017, 3:03 PM EST (20:03 UTC)
- Expired
- Mar 1, 2017, 4:00 PM EST
- In force
- 57 min
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Cocke County, TN, Jefferson County, TN, Loudon County, TN, Sevier County, TN
The radar
The Knoxville radar (KMRX), 59 km from the middle of the area, began a volume at 20:04 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, 8.1 hours before the alert went out and 258 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
- 694 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 842 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 361 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 9.1
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 Morristown, TN wrote its last area forecast discussion before this special weather statement went out at Mar 1, 2:37 PM EST, 26 minutes earlier.
Area forecast discussion, Mar 1, 2:37 PM EST, 26 minutes before
Area Forecast Discussion
National Weather Service Morristown TN
237 PM EST Wed Mar 1 2017
.SHORT TERM (Tonight and Thursday)...
The threat of damaging winds, hail, and isolated tornadoes will
continue to the south of I-40 over the next few hours. Within that
area, severe weather parameters indicate the southern Plateau and
Chattanooga areas have the highest threat. The HRRR seems to have a
better handle on the timing of storms than it did this morning, and
it shows the severe threat winding down around 6 pm. Will include a
pre-first period in the forecast to address the storms and severe
threat.
Obs show a few locations with winds near advisory criteria, so the
Wind Advisory will be continued for the entire area until midnight.
Wtih fropa occurring between 00z and 03z, winds will shift to the W-
NW, and decrease in intensity. Will end the wind advisory for all
locations, including the mountains, at midnight. PoPs will also be
dropped after midnight, with skies clearing as dry air aloft builds
in. With a NW flow providing cold advection through tomorrow,
temperatures will be much cooler, with highs in the upper 40s to
upper 50s.
.LONG TERM (Thursday Night through Wednesday)...
Brief zonal flow on Thursday night will become northwesterly by
Friday morning as a secondary dry cold front tracks through the
area. This will bring in another surge of cool...dry air for
Friday/Friday night. Highs on Friday will range from the 30s
mountains to 40s and low 50s across lower elevations. Lows Friday
night will generally be in the 20s and lower 30s. A ridge of high
pressure will build in for the weekend in...beginning a warming
trend and continuing the dry conditions. The main system of the
extended will be a low pressure system moving through the region
Monday into Tuesday. The main frontal passage on Tuesday should be
accompanied by a line of convection. Behind the system...another
dry...cool air mass will push in for Wednesday.
&&
.PRELIMINARY POINT TEMPS/POPS...
Chattanooga Airport, TN 42 58 34 53 / 10 0 0 10
Knoxville McGhee Tyson Airport, TN 40 54 32 47 / 20 0 0 10
Oak Ridge, TN 39 53 32 47 / 10 0 0 10
Tri Cities Airport, TN 38 50 30 43 / 40 0 0 10
&&
.MRX WATCHES/WARNINGS/ADVISORIES...
NC...Wind Advisory until midnight EST tonight for Cherokee-Clay.
TN...Wind Advisory until midnight EST /11 PM CST/ tonight for
Anderson-Bledsoe-Blount Smoky Mountains-Bradley-Campbell-
Claiborne-Cocke Smoky Mountains-East Polk-Grainger-Hamblen-
Hamilton-Hancock-Hawkins-Jefferson-Johnson-Knox-Loudon-
Marion-McMinn-Meigs-Morgan-NW Blount-North Sevier-Northwest
Carter-Northwest Cocke-Northwest Greene-Northwest Monroe-
Rhea-Roane-Scott TN-Sequatchie-Sevier Smoky Mountains-
Southeast Carter-Southeast Greene-Southeast Monroe-Sullivan-
Unicoi-Union-Washington TN-West Polk.
VA...Wind Advisory until midnight EST tonight for Lee-Russell-Scott-
Washington-Wise.
&&
DGS/MJBHazardous weather outlook, Mar 1, 2:48 PM EST, 15 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Morristown TN 248 PM EST Wed Mar 1 2017 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-021000- Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins- Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen- Northwest Cocke-Cocke Smoky Mountains-Northwest Greene- Southeast Greene-Washington TN-Unicoi-Northwest Carter- Southeast Carter-Roane-Loudon-Knox-Jefferson-NW Blount- Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains- Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe- Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee- Wise-Scott-Russell-Washington- 248 PM EST Wed Mar 1 2017 /148 PM CST Wed Mar 1 2017/ This Hazardous Weather Outlook is for portions of Southwest North Carolina...East Tennessee and Southwest Virginia. .DAY ONE...This Afternoon and Tonight A Tornado Watch is in effect for most of Southeast Tennessee until 7 PM EST. Storms in Southeast Tennessee...including the Chattanooga area...will be capable of producing damaging winds, large hail, and a few tornadoes. The threat of severe storms is expected to end around 6 pm. Additionally, strong south to southwest winds of 20 to 30 mph with gusts up to 45 mph will be possible across East Tennessee this evening. A wind advisory is in effect until midnight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed this evening in support of severe weather operations.
In the hours before
Local storm report, Mar 1, 2:57 PM EST, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
257 PM EST WED MAR 01 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0241 PM FLASH FLOOD CLINTON 36.09N 84.13W
03/01/2017 ANDERSON TN PUBLIC
FLOODING ALONG MARLOW ROAD. REPORT FROM SOCIAL MEDIA.
&&
EHAGNERSpecial weather statement, Mar 1, 2:59 PM EST, 4 minutes before
Special Weather Statement
National Weather Service Morristown TN
259 PM EST WED MAR 1 2017
TNZ081>086-099-100-012100-
Sequatchie-Rhea-Bledsoe-Northwest
Monroe-Bradley-Hamilton-Meigs-McMinn-
259 PM EST WED MAR 1 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN RHEA...
NORTHERN BRADLEY...SOUTHEASTERN SEQUATCHIE...MEIGS...SOUTH CENTRAL
BLEDSOE...MCMINN...NORTHWESTERN MONROE AND EASTERN HAMILTON
COUNTIES...
At 256 PM EST/156 PM CST/, radar indicated strong thunderstorms were
located along a line extending from 7 miles northeast of Decatur to
near Fairmount. Movement was east at 30 mph.
Locations impacted include...
Chattanooga, Cleveland, Athens, Dayton, Sweetwater, Dunlap,
Madisonville, Decatur, Soddy-Daisy, Walden, Lakesite, Charleston,
Harrison, Fairmount, Collegedale, Graysville, Niota, Calhoun,
Cartwright and Flat Top Mountain.
LAT...LON 3529 8551 3572 8475 3569 8463 3565 8462
3563 8458 3564 8454 3562 8451 3565 8452
3566 8450 3560 8427 3507 8505
TIME...MOT...LOC 1956Z 292DEG 25KT 3559 8468 3525 8538
mjbLocal storm report, Mar 1, 3:01 PM EST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
301 PM EST WED MAR 01 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM FLASH FLOOD 7 N OAK RIDGE 36.06N 84.30W
03/01/2017 ANDERSON TN BROADCAST MEDIA
FLOODING AT PONDEROSA ZOO.
&&
EHAGNERLocal storm report, Mar 1, 3:02 PM EST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
302 PM EST WED MAR 01 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0302 PM HAIL JASPER 35.06N 85.63W
03/01/2017 E1.75 INCH MARION TN EMERGENCY MNGR
&&
EHAGNERLocal storm report, Mar 1, 3:03 PM EST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MORRISTOWN TN
303 PM EST WED MAR 01 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1010 AM TSTM WND DMG 2 NW WARTBURG 36.12N 84.61W
03/01/2017 MORGAN TN 911 CALL CENTER
TREE AND POWER LINES DOWN ON MONTGOMERY ROAD IN LANCING.
1040 AM TSTM WND DMG 2 N OAK RIDGE 35.99N 84.30W
03/01/2017 ANDERSON TN 911 CALL CENTER
TREES DOWN ON KEY SPRINGS ROAD.
1055 AM TSTM WND DMG JELLICO 36.58N 84.13W
03/01/2017 CAMPBELL TN 911 CALL CENTER
TREES DOWN.
1118 AM TSTM WND DMG JONESVILLE 36.69N 83.12W
03/01/2017 LEE VA PUBLIC
TREES DOWN ACROSS THE EASTERN PART OF LEE COUNTY.
1140 AM TSTM WND DMG DUFFIELD 36.72N 82.80W
03/01/2017 SCOTT VA PUBLIC
TREES DOWN ACROSS THE WESTERN PART OF SCOTT COUNTY.
1224 PM TSTM WND DMG ABINGDON 36.71N 81.97W
03/01/2017 WASHINGTON VA 911 CALL CENTER
A FEW TREES REPORTED DOWN IN ABINGDON.
0130 PM TSTM WND DMG KINGSTON 35.87N 84.51W
03/01/2017 ROANE TN 911 CALL CENTER
SCATTERED TREES DOWN ACROSS ROANE COUNTY.
0133 PM TSTM WND DMG E NORRIS 36.21N 84.06W
03/01/2017 ANDERSON TN 911 CALL CENTER
TREE DOWN.
0220 PM TSTM WND DMG DUNLAP 35.37N 85.39W
03/01/2017 SEQUATCHIE TN TRAINED SPOTTER
TREES DOWN.
0227 PM FLASH FLOOD CLINTON 36.09N 84.13W
03/01/2017 ANDERSON TN PUBLIC
CREEK OUT OF ITS BANKS ON GAMBLE FARM. REPORT FROM SOCIAL
MEDIA.
0230 PM FLASH FLOOD 7 N OAK RIDGE 36.06N 84.30W
03/01/2017 ANDERSON TN BROADCAST MEDIA
FLOODING AT PONDEROSA ZOO.
0240 PM FLASH FLOOD KINGSTON 35.87N 84.51W
03/01/2017 ROANE TN BROADCAST MEDIA
FLOODED FIELD AND CREEK OUT OF BANKS.
0241 PM FLASH FLOOD CLINTON 36.09N 84.13W
03/01/2017 ANDERSON TN PUBLIC
FLOODING ALONG MARLOW ROAD. REPORT FROM SOCIAL MEDIA.
0250 PM FLASH FLOOD 6 SW MAYNARDVILLE 36.19N 83.88W
03/01/2017 UNION TN AMATEUR RADIO
AREAS OF FLOODING ALONG HIGHWAY 33 IN UNION COUNTY. WATER
COVERING ROADWAY AT RACCOON VALLEY AND HANSARD RD.
0254 PM HAIL 2 NE ORME 35.03N 85.78W
03/01/2017 E2.50 INCH MARION TN EMERGENCY MNGR
0302 PM HAIL JASPER 35.06N 85.63W
03/01/2017 E1.75 INCH MARION TN EMERGENCY MNGR
&&
EHAGNERSpecial weather statement, Mar 1, 3:03 PM EST, 0 minutes before
Special Weather Statement
National Weather Service Morristown TN
303 PM EST WED MAR 1 2017
TNZ039>041-068>074-086-087-012100-
Cocke Smoky Mountains TN-Blount Smoky Mountains TN-Jefferson TN-
Northwest Monroe TN-Hamblen TN-Sevier Smoky Mountains TN-
Northwest Cocke TN-Loudon TN-Knox TN-NW Blount TN-
Southeast Monroe TN-North Sevier TN-
303 PM EST WED MAR 1 2017
...SIGNIFICANT WEATHER ADVISORY FOR LOUDON...SOUTHERN KNOX...
BLOUNT...JEFFERSON...COCKE...NORTHERN MONROE...SEVIER AND SOUTHERN
HAMBLEN COUNTIES UNTIL 400 PM EST...
At 303 PM EST, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northeast of Parrottsville to near
Dandridge to 9 miles east of Eagleton Village to 7 miles southeast of
Lenoir City to near Sweetwater. Movement was east at 45 mph.
Half inch hail and wind gusts up to 50 mph will be possible with
these storms.
Locations impacted include...
Knoxville, Morristown, Maryville, Sevierville, Lenoir City, Alcoa,
Jefferson City, Newport, Sweetwater, Loudon, Madisonville,
Gatlinburg, Dandridge, Farragut, Pigeon Forge, Louisville, White
Pine, Rockford, Baneberry and Parrottsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
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.
&&
A tornado watch remains in effect until 700 PM EST for eastern
Tennessee.
LAT...LON 3539 8401 3553 8445 3563 8452 3564 8457
3578 8442 3577 8439 3581 8438 3588 8430
3593 8392 3626 8310 3616 8317 3595 8290
3588 8290 3577 8299 3579 8308 3577 8316
3557 8349 3556 8377 3552 8388 3540 8402
TIME...MOT...LOC 2003Z 260DEG 38KT 3605 8300 3598 8347 3581 8376 3576
8416 3563 8442
05/MAThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 9:37 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Morgan, Roane, Scott | 53 min |
| Mar 1, 10:30 AM EST | Severe Thunderstorm Warning | MRX | Anderson, Campbell, Claiborne, Grainger, Knox, Roane and 1 more | 45 min |
| Mar 1, 11:06 AM EST | Severe Thunderstorm Warning | MRX | Campbell, Claiborne, Hancock, Hawkins | 54 min |
| Mar 1, 11:10 AM EST | Severe Thunderstorm Warning | MRX | Hancock, Hawkins, Sullivan | 65 min |
| Mar 1, 11:15 AM EST | Special Weather Statement | MRX | Anderson, Grainger, Jefferson, Knox | 60 min |
| Mar 1, 11:43 AM EST | Special Weather Statement | MRX | Grainger, Union | 62 min |
| Mar 1, 12:00 PM EST | Areal Flood Advisory | MRX | Campbell, Claiborne | 3 hr |
| Mar 1, 12:14 PM EST | Special Weather Statement | MRX | Sullivan, Washington | 46 min |
| Mar 1, 12:21 PM EST | Severe Thunderstorm Warning | MRX | Johnson, Sullivan | 24 min |
| Mar 1, 12:28 PM EST | Special Weather Statement | MRX | Sullivan, Washington | 62 min |
| Mar 1, 12:52 PM EST | Special Weather Statement | MRX | Bledsoe, Rhea | 38 min |
| Mar 1, 12:58 PM EST | Special Weather Statement | MRX | Carter, Johnson, Sullivan, Washington | 62 min |
| Mar 1, 1:04 PM EST | Special Weather Statement | MRX | Greene, Hamblen, Jefferson | 56 min |
| Mar 1, 1:06 PM EST | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan, Washington | 54 min |
| Mar 1, 1:11 PM EST | Severe Thunderstorm Warning | MRX | Bledsoe, Rhea | 29 min |
| Mar 1, 1:22 PM EST | Areal Flood Advisory | MRX | Anderson, Morgan, Roane | 3 hr |
| Mar 1, 1:23 PM EST | Severe Thunderstorm Warning | MRX | Anderson, Blount, Knox, Loudon, Roane | 52 min |
| Mar 1, 1:35 PM EST | Flash Flood Warning | MRX | Anderson, Knox, Loudon, Roane | 3 hr |
| Mar 1, 1:51 PM EST | Areal Flood Advisory | MRX | Bledsoe, Rhea | 3 hr |
| Mar 1, 1:58 PM EST | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Marion, Meigs, Rhea, Sequatchie | 62 min |
| Mar 1, 2:06 PM EST | Flash Flood Warning | MRX | Anderson, Grainger, Knox, Union | 3 hr |
| Mar 1, 2:07 PM EST | Special Weather Statement | MRX | Cocke, Hamblen, Jefferson, Knox, Sevier | 53 min |
| Mar 1, 2:22 PM EST | Areal Flood Advisory | MRX | Cocke, Grainger, Hamblen, Jefferson, Sevier | 3 hr |
| Mar 1, 2:28 PM EST | Areal Flood Advisory | MRX | Greene, Hawkins | 3 hr |
| Mar 1, 2:29 PM EST | Special Weather Statement | MRX | Carter, Greene, Unicoi, Washington | 46 min |
| Mar 1, 2:30 PM EST | Severe Thunderstorm Warning | MRX | Marion | 45 min |
| Mar 1, 2:59 PM EST | Special Weather Statement | MRX | Hamilton, McMinn, Meigs, Rhea | 61 min |
| Mar 1, 3:00 PM EST | Flash Flood Warning | MRX | Grainger, Hamblen, Jefferson | 3 hr |
| Mar 1, 3:02 PM EST | Severe Thunderstorm Warning | MRX | Hamilton, Marion | 58 min |
| Mar 1, 3:20 PM EST | Severe Thunderstorm Warning | MRX | Blount, Knox, Sevier | 30 min |
| Mar 1, 3:30 PM EST | Areal Flood Advisory | MRX | Blount, Knox | 3 hr |
| Mar 1, 3:30 PM EST | Special Weather Statement | MRX | McMinn, Monroe | 60 min |
| Mar 1, 3:35 PM EST | Severe Thunderstorm Warning | MRX | Bradley, Hamilton, McMinn, Meigs, Monroe, Polk | 55 min |
| Mar 1, 3:59 PM EST | Special Weather Statement | MRX | Carter, Cocke, Greene, Monroe, Sevier, Unicoi | 46 min |
| Mar 1, 4:03 PM EST | Areal Flood Advisory | MRX | Hawkins, Sullivan, Washington | 117 min |
| Mar 1, 4:10 PM EST | Severe Thunderstorm Warning | MRX | Blount, Monroe | 18 min |
| Mar 1, 4:27 PM EST | Severe Thunderstorm Warning | MRX | Polk | 18 min |
| Mar 1, 4:31 PM EST | Areal Flood Advisory | MRX | Cocke, Greene, Jefferson | 3 hr |
| Mar 1, 4:46 PM EST | Flash Flood Warning | MRX | Blount, Jefferson, Knox, Loudon, Sevier | 3 hr |
| Mar 1, 10:48 AM EST | Special Weather Statement | MRX | Lee, Russell, Scott, City of Norton | 27 min |
| Mar 1, 4:14 PM EST | Special Weather Statement | MRX | Cherokee | 46 min |
Nearby
Special Weather Statements in Tennessee, 2017Every special weather statement in 2017
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.