Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 27, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Mar 27, 2021, 6:43 PM CDT for Marion County, Tennessee. It was in force for 47 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
- Mar 27, 2021, 6:43 PM CDT (23:43 UTC)
- Expired
- Mar 27, 2021, 7:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Marion County, TN
The radar
The Northeast Alabama radar (KHTX), 47 km from the middle of the area, began a volume at 23:43 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 |
|---|---|---|---|
| Mar 27, 7:20 PM CDT | HAIL 1 | 7 W Martin Springs, TN |
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, 11.7 hours before the alert went out and 131 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 347 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
383
WUUS54 KMRX 272343
SVRMRX
TNC115-280030-
/O.NEW.KMRX.SV.W.0027.210327T2343Z-210328T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
643 PM CDT Sat Mar 27 2021
The National Weather Service in Morristown has issued a
* Severe Thunderstorm Warning for...
Marion County in east Tennessee...
* Until 730 PM CDT.
* At 642 PM CDT, a severe thunderstorm was located 8 miles northwest
of Stevenson, or 13 miles west of Bridgeport, moving northeast at
45 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Jasper, South Pittsburg, Whitwell, Kimball, Monteagle, Powells
Crossroads, Orme, Martin Springs, Fiery Gizzard State Park and
Griffith Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3519 8587 3524 8583 3522 8577 3522 8574
3524 8569 3529 8571 3529 8569 3531 8565
3532 8556 3530 8555 3527 8549 3526 8544
3522 8540 3499 8572 3499 8586 3500 8586
TIME...MOT...LOC 2342Z 222DEG 41KT 3495 8596
HAIL...1.25IN
WIND...60MPH
$$
DH1 follow-up statement
608
WWUS54 KMRX 272356
SVSMRX
Severe Weather Statement
National Weather Service Morristown TN
656 PM CDT Sat Mar 27 2021
TNC115-280030-
/O.CON.KMRX.SV.W.0027.000000T0000Z-210328T0030Z/
Marion TN-
656 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR MARION COUNTY...
At 655 PM CDT, a severe thunderstorm was located near South
Pittsburg, or 9 miles west of Jasper, moving northeast at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Jasper, South Pittsburg, Whitwell, Kimball, Monteagle, Powells
Crossroads, Orme, Martin Springs, Fiery Gizzard State Park and
Griffith Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3519 8587 3524 8583 3522 8577 3522 8574
3524 8569 3529 8571 3529 8569 3531 8565
3532 8556 3530 8555 3527 8549 3526 8544
3522 8540 3499 8572 3499 8586 3500 8586
TIME...MOT...LOC 2355Z 225DEG 45KT 3508 8579
HAIL...1.50IN
WIND...60MPH
$$
DHThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 4:03 AM CDT | Special Weather Statement | MRX | Marion, Sequatchie | 42 min |
| Mar 27, 4:23 AM CDT | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Marion, Sequatchie | 39 min |
| Mar 27, 4:47 AM CDT | Special Weather Statement | MRX | Hamilton | 43 min |
| Mar 27, 5:08 AM CDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton | 52 min |
| Mar 27, 5:41 AM CDT | Severe Thunderstorm Warning | MRX | Bradley, Polk | 49 min |
| Mar 27, 6:46 AM CDT | Special Weather Statement | MRX | Roane | 44 min |
| Mar 27, 6:58 AM CDT | Severe Thunderstorm Warning | MRX | Morgan | 47 min |
| Mar 27, 7:27 AM CDT | Special Weather Statement | MRX | Scott | 48 min |
| Mar 27, 7:37 AM CDT | Special Weather Statement | MRX | Knox | 38 min |
| Mar 27, 7:42 AM CDT | Severe Thunderstorm Warning | MRX | Scott | 26 min |
| Mar 27, 7:58 AM CDT | Special Weather Statement | MRX | Knox, Loudon | 47 min |
| Mar 27, 8:18 AM CDT | Severe Thunderstorm Warning | MRX | Grainger, Knox, Union | 42 min |
| Mar 27, 8:39 AM CDT | Severe Thunderstorm Warning | MRX | Knox, Sevier | 30 min |
| Mar 27, 8:43 AM CDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Hancock, Hawkins | 47 min |
| Mar 27, 9:00 AM CDT | Severe Thunderstorm Warning | MRX | Cocke, Hamblen, Jefferson | 45 min |
| Mar 27, 9:06 AM CDT | Severe Thunderstorm Warning | MRX | Campbell, Scott | 54 min |
| Mar 27, 9:14 AM CDT | Special Weather Statement | MRX | Anderson, Campbell, Morgan, Scott | 46 min |
| Mar 27, 9:30 AM CDT | Special Weather Statement | MRX | Hawkins | 45 min |
| Mar 27, 9:33 AM CDT | Severe Thunderstorm Warning | MRX | Greene | 42 min |
| Mar 27, 9:33 AM CDT | Severe Thunderstorm Warning | MRX | Campbell, Claiborne | 42 min |
| Mar 27, 9:36 AM CDT | Flash Flood Warning | MRX | Morgan, Scott | 4 hr |
| Mar 27, 9:41 AM CDT | Severe Thunderstorm Warning | MRX | Hawkins | 49 min |
| Mar 27, 9:51 AM CDT | Special Weather Statement | MRX | Anderson, Morgan | 39 min |
| Mar 27, 10:00 AM CDT | Special Weather Statement | MRX | Claiborne | 45 min |
| Mar 27, 10:07 AM CDT | Severe Thunderstorm Warning | MRX | Sullivan | 38 min |
| Mar 27, 10:11 AM CDT | Severe Thunderstorm Warning | MRX | Unicoi, Washington | 35 min |
| Mar 27, 10:20 AM CDT | Special Weather Statement | MRX | Grainger, Hamblen, Union | 40 min |
| Mar 27, 10:30 AM CDT | Severe Thunderstorm Warning | MRX | Claiborne, Hancock | 22 min |
| Mar 27, 10:32 AM CDT | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan, Unicoi, Washington | 43 min |
| Mar 27, 10:45 AM CDT | Areal Flood Advisory | MRX | Hawkins, Sullivan | 3 hr |
| Mar 27, 10:46 AM CDT | Special Weather Statement | MRX | Hamblen, Jefferson | 44 min |
| Mar 27, 10:48 AM CDT | Areal Flood Advisory | MRX | Campbell, Claiborne | 3 hr |
| Mar 27, 10:50 AM CDT | Areal Flood Advisory | MRX | Carter, Greene, Washington | 3 hr |
| Mar 27, 10:56 AM CDT | Special Weather Statement | MRX | Monroe | 49 min |
| Mar 27, 11:07 AM CDT | Areal Flood Advisory | MRX | Anderson, Knox | 3 hr |
| Mar 27, 11:12 AM CDT | Areal Flood Advisory | MRX | Claiborne, Hancock | 3 hr |
| Mar 27, 11:17 AM CDT | Special Weather Statement | MRX | Johnson | 43 min |
| Mar 27, 11:23 AM CDT | Special Weather Statement | MRX | Hawkins | 52 min |
| Mar 27, 12:01 PM CDT | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan, Unicoi, Washington | 44 min |
| Mar 27, 2:13 PM CDT | Wind Advisory | MRX | Blount, Carter, Cocke, Greene, Johnson, Monroe and 2 more | 23 hr |
| Mar 27, 2:34 PM CDT | Special Weather Statement | MRX | Campbell, Morgan | 41 min |
| Mar 27, 4:05 PM CDT | Areal Flood Warning | MRX | Anderson, Campbell, Claiborne, Morgan, Scott, Union | 3 hr |
| Mar 27, 4:38 PM CDT | Areal Flood Warning | MRX | Claiborne, Grainger, Hancock, Hawkins, Union | 3 hr |
| Mar 27, 4:49 PM CDT | Special Weather Statement | MRX | Anderson, Morgan | 41 min |
| Mar 27, 5:13 PM CDT | Areal Flood Warning | MRX | Blount, Sevier | 3 hr |
| Mar 27, 5:59 PM CDT | Special Weather Statement | MRX | Morgan, Scott | 46 min |
| Mar 27, 6:02 PM CDT | Special Weather Statement | MRX | Marion, Sequatchie | 43 min |
| Mar 27, 6:15 PM CDT | Severe Thunderstorm Warning | MRX | Campbell, Scott | 45 min |
| Mar 27, 6:34 PM CDT | Special Weather Statement | MRX | Hancock | 41 min |
| Mar 27, 6:36 PM CDT | Special Weather Statement | MRX | Meigs | 39 min |
| Mar 27, 6:40 PM CDT | Special Weather Statement | MRX | Campbell, Scott | 50 min |
| Mar 27, 6:52 PM CDT | Special Weather Statement | MRX | Campbell | 53 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2021Every severe thunderstorm warning 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.