Alert archive / Tennessee / Wind Advisories in 2021
Wind Advisory 16, NWS Morristown, TN
NWS Morristown, TN issued this wind advisory at Sep 20, 2021, 10:27 AM EDT for 7 counties in Tennessee. It took effect at Sep 20, 2021, 8:00 PM EDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2021, 10:27 AM EDT (14:27 UTC)
- In effect from
- Sep 20, 2021, 8:00 PM EDT
- Expired
- Sep 21, 2021, 6:49 AM EDT
- In force
- 11 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Monroe County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Knoxville radar (KMRX), 35 km from the middle of the area, began a volume at 14:28 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, 2.5 hours before the alert went out and 295 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
- 48 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
176 WWUS74 KMRX 201427 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 1027 AM EDT Mon Sep 20 2021 TNZ041-043-045-047-072-074-087-210000- /O.NEW.KMRX.WI.Y.0016.210921T0000Z-210921T1200Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi-Southeast Carter- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 1027 AM EDT Mon Sep 20 2021 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... * WHAT...Southeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Portions of east Tennessee. * WHEN...From 8 PM this evening to 8 AM EDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
4 follow-up statements
148 WWUS74 KMRX 201938 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 338 PM EDT Mon Sep 20 2021 TNZ041-043-045-047-072-074-087-210600- /O.CON.KMRX.WI.Y.0016.210921T0000Z-210921T1200Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi-Southeast Carter- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 338 PM EDT Mon Sep 20 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 8 AM EDT TUESDAY... * WHAT...Southeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Portions of east Tennessee. * WHEN...From 8 PM this evening to 8 AM EDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
720 WWUS74 KMRX 210350 NPWMRX URGENT - WEATHER MESSAGE National Weather Service Morristown TN 1150 PM EDT Mon Sep 20 2021 TNZ041-043-045-047-072-074-087-211200- /O.CON.KMRX.WI.Y.0016.000000T0000Z-210921T1200Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi-Southeast Carter- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 1150 PM EDT Mon Sep 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT TUESDAY... * WHAT...Southeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Portions of east Tennessee. * WHEN...Through 8 AM EDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
561 WWUS74 KMRX 210723 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 323 AM EDT Tue Sep 21 2021 TNZ041-043-045-047-072-074-087-211200- /O.CON.KMRX.WI.Y.0016.000000T0000Z-210921T1200Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi-Southeast Carter- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- Including the cities of Hartford, Cedar Creek, Erwin, Unicoi, Limestone Cove, Hampton, Cades Cove, Elkmont, Gatlinburg, Citico, and Coker Creek 323 AM EDT Tue Sep 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Southeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Portions of the East Tennessee mountains. * WHEN...Through 8 AM EDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
727 WWUS74 KMRX 211049 AAA NPWMRX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Morristown TN 649 AM EDT Tue Sep 21 2021 TNZ041-043-045-047-072-074-087-211200- /O.CAN.KMRX.WI.Y.0016.000000T0000Z-210921T1200Z/ Cocke Smoky Mountains-Southeast Greene-Unicoi-Southeast Carter- Blount Smoky Mountains-Sevier Smoky Mountains-Southeast Monroe- 649 AM EDT Tue Sep 21 2021 ...WIND ADVISORY IS CANCELLED... Winds gusts have fallen below 40 mph across the East Tennessee mountains, and will continue to drop through the day. $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 9:28 PM EDT | River Flood Warning | MRX | Bledsoe, Marion, Sequatchie | 3 days |
| Sep 19, 11:18 PM EDT | Areal Flood Warning | MRX | Hamilton | 10 hr |
| Sep 20, 8:55 AM EDT | Areal Flood Warning | MRX | Hamilton | 3 hr |
| Sep 20, 2:53 PM EDT | Flash Flood Warning | MRX | Hamilton, Marion | 4 hr |
Nearby
Wind Advisories in Tennessee, 2021Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.