Flash Flood Warning 13, NWS Morristown, TN

Issued

Mar 28, 2021, 6:40 AM EDT (10:40 UTC)

Expired

Mar 28, 2021, 11:15 AM EDT

In force

5 hr

Issued by

NWS Morristown, TN

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

Counties Anderson County, TN, Knox County, TN, Loudon County, TN, Morgan County, TN, Roane County, TN, Union County, TN

The Knoxville radar (KMRX), 96 km from the middle of the area, began a volume at 10:41 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

274 
WGUS54 KMRX 281040
FFWMRX
TNC001-093-105-129-145-173-281515-
/O.NEW.KMRX.FF.W.0013.210328T1040Z-210328T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Morristown TN
640 AM EDT Sun Mar 28 2021

The National Weather Service in Morristown has issued a

* Flash Flood Warning for...
  Central Anderson County in east Tennessee...
  Knox County in east Tennessee...
  Central Loudon County in east Tennessee...
  Southeastern Morgan County in east Tennessee...
  Roane County in east Tennessee...
  Southeastern Union County in east Tennessee...

* Until 1115 AM EDT.

* At 640 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 inches of 
  rain have fallen. Additional rainfall amounts up to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Knoxville, Oak Ridge, Clinton, Lenoir City, Alcoa, Kingston, 
  Rockwood, Loudon, Farragut, Fairview, Oliver Springs, Louisville, 
  Plainview, Midtown, Harriman, Halls, Blaine, Luttrell, Oakdale and 
  Bradbury.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3577 8475 3579 8474 3581 8479 3591 8468
      3597 8471 3609 8439 3619 8397 3621 8370
      3592 8387 3588 8403 3586 8401 3584 8407
      3585 8414 3583 8413 3564 8458 3567 8463
      3572 8464 3570 8466 3572 8470

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

GC

823 
WGUS74 KMRX 281512
FFSMRX

Flash Flood Statement
National Weather Service Morristown TN
1112 AM EDT Sun Mar 28 2021

TNC001-093-105-129-145-173-281522-
/O.EXP.KMRX.FF.W.0013.000000T0000Z-210328T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Anderson TN-Knox TN-Loudon TN-Morgan TN-Roane TN-Union TN-
1112 AM EDT Sun Mar 28 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1115 AM EDT THIS MORNING FOR 
CENTRAL ANDERSON, KNOX, CENTRAL LOUDON, SOUTHEASTERN MORGAN, ROANE 
AND SOUTHEASTERN UNION COUNTIES...

Even though the heavy rain has ended it will take a long time for 
flood waters to recede. Avoid driving across flooded roads.

LAT...LON 3577 8475 3579 8474 3581 8479 3591 8468
      3597 8471 3609 8439 3619 8397 3621 8370
      3592 8387 3588 8403 3586 8401 3584 8407
      3585 8414 3583 8413 3564 8458 3567 8463
      3572 8464 3570 8466 3572 8470

$$

19

Flash Flood Warnings in Tennessee, 2021Every flash flood warning in 2021

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.