Alert archive / Tennessee / Special Weather Statements in 2021
Special Weather Statement, NWS Morristown, TN
NWS Morristown, TN issued this special weather statement at Aug 9, 2021, 5:29 PM EDT for Scott County, Tennessee. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 9, 2021, 5:29 PM EDT (21:29 UTC)
- Expired
- Aug 9, 2021, 6:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Morristown, TN
- Hail
- 0.25 in
- Wind
- 40
County Scott County, TN
The radar
The Knoxville radar (KMRX), 121 km from the middle of the area, began a volume at 21:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 6:05 PM EDT | TSTM WND DMG | Sunbright, TN | NUMEROUS TREES WERE BLOWN DOWN AROUND SUNBRIGHT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 9.5 hours before the alert went out and 168 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
- 788 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
706
WWUS84 KMRX 092129
SPSMRX
Special Weather Statement
National Weather Service Morristown TN
529 PM EDT Mon Aug 9 2021
TNZ012-035-092215-
Scott TN-Morgan TN-
529 PM EDT Mon Aug 9 2021
...A strong thunderstorm will impact portions of northwestern Morgan
and southwestern Scott Counties through 615 PM EDT...
At 527 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Jamestown, moving east at 25 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Huntsville, Helenwood, Sunbright, Rugby, Rugby State Park, Deerlodge,
Honey Creek State Park, Elgin, Robbins and Slick Rock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3620 8448 3616 8491 3621 8491 3624 8488
3628 8488 3629 8487 3630 8480 3633 8477
3633 8476 3634 8474 3635 8474 3635 8473
3637 8472 3637 8470 3640 8466 3645 8469
3650 8456
TIME...MOT...LOC 2127Z 255DEG 23KT 3631 8484
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
$$The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 2:24 PM EDT | Special Weather Statement | MRX | Bradley | 36 min |
| Aug 9, 3:17 PM EDT | Special Weather Statement | MRX | Scott | 43 min |
| Aug 9, 5:48 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 42 min |
| Aug 9, 5:49 PM EDT | Severe Thunderstorm Warning | MRX | Morgan, Scott | 41 min |
| Aug 9, 6:07 PM EDT | Areal Flood Advisory | MRX | Morgan | 3 hr |
| Aug 9, 7:13 PM EDT | Special Weather Statement | MRX | Anderson | 47 min |
| Aug 9, 7:55 PM EDT | Severe Thunderstorm Warning | MRX | Grainger, Knox, Union | 39 min |
Nearby
Special Weather Statements in Tennessee, 2021Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.