Alert archive / Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Morristown, TN

July 23, 2017Wise County, City of Norton, Virginia

NWS Morristown, TN issued this special weather statement at Jul 23, 2017, 7:49 PM EDT for Wise County, City of Norton, Virginia. It was in force for 41 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 23, 2017, 7:49 PM EDT (23:49 UTC)
Expired: Jul 23, 2017, 8:30 PM EDT
In force: 41 min
Issued by: NWS Morristown, TN

Counties City of Norton, VA, Wise County, VA

The radar

The Jackson,KY radar (KJKL), 91 km from the middle of the area, began a volume at 23:53 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.8 hours before the alert went out and 267 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: 636 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Morristown, TN wrote its last area forecast discussion before this special weather statement went out at Jul 23, 7:25 PM EDT, 24 minutes earlier.

Area forecast discussion, Jul 23, 7:25 PM EDT, 24 minutes before

Area Forecast Discussion
National Weather Service Morristown TN
725 PM EDT Sun Jul 23 2017

.AVIATION...
Showers and thunderstorms are moving into the area. If/when they
impact an airport they will briefly cause degraded conditions
until they move out. Locations that get rainfall from
thunderstorms this afternoon could see fog overnight as well.

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...None.
TN...None.
VA...None.
&&

ABM

Hazardous weather outlook, Jul 23, 3:24 PM EDT, 4 hours 25 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
324 PM EDT Sun Jul 23 2017

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-240900-
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-
324 PM EDT Sun Jul 23 2017 /224 PM CDT Sun Jul 23 2017/

This Hazardous Weather Outlook is for portions of Southwest North
Carolina...East Tennessee and Southwest Virginia.

.DAY ONE...This Afternoon and Tonight

Scattered to numerous thunderstorms can be expected especially
this afternoon into early tonight, and a few of these storms may
become strong to severe, with damaging winds the primary threat.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter reports might be needed for parts of the area this evening.

In the hours before

Special weather statement, Jul 23, 3:45 PM EDT, 4 hours 4 minutes before

Special Weather Statement
National Weather Service Morristown TN
245 PM CDT SUN JUL 23 2017

TNZ098-232015-
Marion TN-
245 PM CDT SUN JUL 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR MARION COUNTY UNTIL 315 PM CDT...

At 244 PM CDT, Doppler radar was tracking a strong thunderstorm near
Jasper, moving southeast at 5 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Jasper, South Pittsburg, Whitwell, Kimball, Powells Crossroads, Orme,
Martin Springs, Fiery Gizzard State Park, Haletown (guild), Griffith
Creek, Chimneys State Park, Hicks Gap State Park, Sequatchie Cave,
Foster Falls State Park, New Hope and Lone Oak.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is also occurring with this storm, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3516 8585 3522 8578 3522 8574 3524 8570
      3528 8571 3531 8565 3532 8556 3530 8555
      3527 8549 3526 8544 3520 8539 3511 8539
      3510 8538 3498 8550 3499 8577 3509 8586
      3514 8586
TIME...MOT...LOC 1944Z 301DEG 6KT 3514 8563

Special weather statement, Jul 23, 5:12 PM EDT, 2 hours 37 minutes before

Special Weather Statement
National Weather Service Morristown TN
512 PM EDT SUN JUL 23 2017

TNZ042-043-232130-
Northwest Greene TN-Southeast Greene TN-
512 PM EDT SUN JUL 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GREENE COUNTY UNTIL
530 PM EDT...

At 511 PM EDT, Doppler radar was tracking a strong thunderstorm near
Greeneville, moving east at 5 mph.

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

Locations impacted include...
Greeneville, Mosheim, Camp Creek and Cedar Creek.

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.

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

&&

LAT...LON 3605 8267 3602 8272 3600 8278 3598 8279
      3597 8277 3596 8279 3606 8299 3619 8295
      3612 8265
TIME...MOT...LOC 2111Z 282DEG 6KT 3609 8289

JLB

Special weather statement, Jul 23, 7:21 PM EDT, 28 minutes before

Special Weather Statement
National Weather Service Morristown TN
721 PM EDT SUN JUL 23 2017

VAZ006-232345-
Russell VA-
721 PM EDT SUN JUL 23 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN RUSSELL COUNTY UNTIL
745 PM EDT...

At 721 PM EDT, Doppler radar was tracking a strong thunderstorm near
Raven, or 9 miles east of Davenport, moving east at 25 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Lebanon, Honaker, Dye and Rosedale.

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 3711 8189 3704 8182 3698 8179 3687 8203
      3704 8214 3704 8212 3705 8211 3704 8208
      3705 8204 3707 8202 3709 8202 3712 8201
      3713 8193 3714 8190
TIME...MOT...LOC 2321Z 272DEG 22KT 3706 8197

EMH

Special weather statement, Jul 23, 7:45 PM EDT, 4 minutes before

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Special weather statement, Jul 23, 7:49 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 8:02 AM EDT	Special Weather Statement	MRX	Union	43 min
Jul 23, 3:45 PM EDT	Special Weather Statement	MRX	Marion	30 min
Jul 23, 5:12 PM EDT	Special Weather Statement	MRX	Greene	18 min
Jul 23, 7:21 PM EDT	Special Weather Statement	MRX	Russell	24 min
Jul 23, 7:45 PM EDT	Special Weather Statement	MRX	Russell	45 min

Nearby

Special Weather Statements in Virginia, 2017 Every 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.