Alert archive / Tennessee / Flood Watches in 2021
Flood Watch 2, NWS Morristown, TN
NWS Morristown, TN issued this flood watch at Aug 16, 2021, 2:06 PM EDT for 18 counties in Tennessee; Cherokee County, Clay County, North Carolina. It took effect at Aug 17, 2021, 8:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Aug 16, 2021, 2:06 PM EDT (18:06 UTC)
- In effect from
- Aug 17, 2021, 8:00 AM EDT
- Expired
- Aug 16, 2021, 2:38 PM EDT
- In force
- Issued by
- NWS Morristown, TN
- Flood severity
- None
Counties Cherokee County, NC, Clay County, NC, Blount County, TN, Bradley County, TN, Carter County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hamilton County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Monroe County, TN, Polk County, TN, Sevier County, TN, Unicoi County, TN, Washington County, TN
The radar
The Knoxville radar (KMRX), 62 km from the middle of the area, began a volume at 18:09 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, 6.1 hours before the alert went out and 257 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
- 109 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
434 WGUS64 KMRX 161806 FFAMRX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Morristown TN 206 PM EDT Mon Aug 16 2021 NCZ060-061-TNZ038>047-068>074-085>087-098>102-170215- /O.NEW.KMRX.FA.A.0002.210817T1200Z-210818T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Cherokee-Clay-Grainger-Hamblen-Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-Southeast Greene-Washington-Unicoi- Northwest Carter-Southeast Carter-Loudon-Knox-Jefferson-Northwest Blount-Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains- McMinn-Northwest Monroe-Southeast Monroe-Marion-Hamilton-Bradley- West Polk-East Polk- Including the cities of White Pine, Russellville, Sweetwater, Bybee, Knoxville, Bullet Creek, Gatlinburg, Topton, Reliance, Dentville, Morristown, Conasauga, Strawberry Plains, Shooting Creek, South Pittsburg, Monteagle, Loudon, Elizabethton, Cedar Creek, Cades Cove, Chestnut Hill, Johnson City, Harrisburg, Bearden, Murphy, Sevierville, Greeneville, Bean Station, Unaka, Hartford, Andrews, Tasso, Athens, Alpha, Tusquitee, Elkmont, Citico, Archville, Chattanooga, Pigeon Forge, Maryville, Powells Crossroads, McMahan, Clear Water, Alcoa, Benton, Lake Forest, Erwin, Jefferson City, Kodak, Parksville, Newport, Haletown (Guild), Unicoi, Whitwell, Happy Valley, Etowah, Marble, Lenoir City, Hampton, Coker Creek, Turtletown, Limestone Cove, Brasstown, Dandridge, Big Frog Mountain, Seymour, Cleveland, Hiawasse Dam, Jasper, Violet, Ducktown, Hayesville, Martin Springs, and Madisonville 206 PM EDT Mon Aug 16 2021 /106 PM CDT Mon Aug 16 2021/ ...FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY MORNING... The National Weather Service in Morristown has issued a * Flood Watch for Portions of southwest North Carolina, including the following areas, Cherokee and Clay. Portions of east Tennessee, including the following areas, Blount Smoky Mountains, Bradley, Cocke Smoky Mountains, East Polk, Grainger, Hamblen, Hamilton, Jefferson, Knox, Loudon, Marion, McMinn, North Sevier, Northwest Blount, Northwest Carter, Northwest Cocke, Northwest Greene, Northwest Monroe, Sevier Smoky Mountains, Southeast Carter, Southeast Greene, Southeast Monroe, Unicoi, Washington and West Polk. * From Tuesday morning through Wednesday morning. * Heavy rains associated with the remnants of Tropical Storm Fred are expected to lift north through the southern Appalachians and portions of the Tennessee valley Tuesday and Tuesday night. Storm total rainfall amounts of 2 to 3 inches are expected in the Tennessee valley. In the higher terrain of western North Carolina and the east Tennessee mountains, amounts of 3 to 4 inches are expected, with locally higher amounts possible. Flash flooding is expected to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CD
1 follow-up statement
481 WGUS64 KMRX 161838 FFAMRX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Morristown TN 238 PM EDT Mon Aug 16 2021 NCZ060-061-TNZ038>047-068>074-085>087-098>102-170400- /O.CAN.KMRX.FA.A.0002.210817T1200Z-210818T1200Z/ /O.NEW.KMRX.FF.A.0008.210817T1200Z-210818T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Cherokee-Clay-Grainger-Hamblen-Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-Southeast Greene-Washington-Unicoi- Northwest Carter-Southeast Carter-Loudon-Knox-Jefferson-Northwest Blount-Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains- McMinn-Northwest Monroe-Southeast Monroe-Marion-Hamilton-Bradley- West Polk-East Polk- Including the cities of White Pine, Russellville, Sweetwater, Bybee, Knoxville, Bullet Creek, Gatlinburg, Topton, Reliance, Dentville, Morristown, Conasauga, Strawberry Plains, Shooting Creek, South Pittsburg, Monteagle, Loudon, Elizabethton, Cedar Creek, Cades Cove, Chestnut Hill, Johnson City, Harrisburg, Bearden, Murphy, Sevierville, Greeneville, Bean Station, Unaka, Hartford, Andrews, Tasso, Athens, Alpha, Tusquitee, Elkmont, Citico, Archville, Chattanooga, Pigeon Forge, Maryville, Powells Crossroads, McMahan, Clear Water, Alcoa, Benton, Lake Forest, Erwin, Jefferson City, Kodak, Parksville, Newport, Haletown (Guild), Unicoi, Whitwell, Happy Valley, Etowah, Marble, Lenoir City, Hampton, Coker Creek, Turtletown, Limestone Cove, Brasstown, Dandridge, Big Frog Mountain, Seymour, Cleveland, Hiawasse Dam, Jasper, Violet, Ducktown, Hayesville, Martin Springs, and Madisonville 238 PM EDT Mon Aug 16 2021 /138 PM CDT Mon Aug 16 2021/ ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY MORNING... ...FLOOD WATCH IS CANCELLED... The Flood Watch for Portions of southwest North Carolina, including the following areas, Cherokee and Clay. Portions of east Tennessee, including the following areas, Blount Smoky Mountains, Bradley, Cocke Smoky Mountains, East Polk, Grainger, Hamblen, Hamilton, Jefferson, Knox, Loudon, Marion, McMinn, North Sevier, Northwest Blount, Northwest Carter, Northwest Cocke, Northwest Greene, Northwest Monroe, Sevier Smoky Mountains, Southeast Carter, Southeast Greene, Southeast Monroe, Unicoi, Washington and West Polk. has been cancelled. The Flood Watch has been replaced with a Flash Flood Watch. The National Weather Service in Morristown has issued a * Flash Flood Watch for Portions of southwest North Carolina, including the following areas, Cherokee and Clay. Portions of east Tennessee, including the following areas, Blount Smoky Mountains, Bradley, Cocke Smoky Mountains, East Polk, Grainger, Hamblen, Hamilton, Jefferson, Knox, Loudon, Marion, McMinn, North Sevier, Northwest Blount, Northwest Carter, Northwest Cocke, Northwest Greene, Northwest Monroe, Sevier Smoky Mountains, Southeast Carter, Southeast Greene, Southeast Monroe, Unicoi, Washington and West Polk. * From Tuesday morning through Wednesday morning. * Heavy rains associated with the remnants of Tropical Storm Fred are expected to lift north through the southern Appalachians and portions of the Tennessee valley Tuesday and Tuesday night. Storm total rainfall amounts of 2 to 3 inches are expected in the Tennessee valley. In the higher terrain of western North Carolina and the east Tennessee mountains, amounts of 3 to 4 inches are expected, with locally higher amounts possible. Flash flooding is expected to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && $$ CD
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 10:48 PM EDT | Areal Flood Advisory | MRX | Bradley, Hamilton | 3 hr |
| Aug 16, 1:41 AM EDT | Areal Flood Advisory | MRX | Bradley, Hamilton | 109 min |
| Aug 16, 3:10 AM EDT | Areal Flood Advisory | MRX | Monroe, Polk | 2 hr |
| Aug 16, 6:18 AM EDT | Areal Flood Advisory | MRX | Marion, Sequatchie | 117 min |
| Aug 16, 8:51 AM EDT | River Flood Warning | MRX | Cocke | 56 hr |
| Aug 16, 2:38 PM EDT | Flash Flood Watch | MRX | Blount, Bradley, Carter, Cocke, Grainger, Greene and 16 more | 33 hr |
| Aug 16, 4:25 PM EDT | Special Weather Statement | MRX | Meigs, Rhea | 50 min |
| Aug 16, 4:28 PM EDT | Special Weather Statement | MRX | Meigs | 47 min |
| Aug 16, 7:45 PM EDT | Areal Flood Advisory | MRX | Cocke, Greene | 3 hr |
Nearby
Flood Watches in Tennessee, 2021Flood Watches in North Carolina, 2021Every flood watch 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.