Alert archive / Tennessee / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 112, NWS Morristown, TN

April 27, 2011Hamilton County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Apr 27, 2011, 3:24 PM EDT for Hamilton County, Tennessee. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 27, 2011, 3:24 PM EDT (19:24 UTC)
Expired: Apr 27, 2011, 4:00 PM EDT
In force: 36 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon

County Hamilton County, TN

The radar

The Northeast Alabama radar (KHTX), 97 km from the middle of the area, began a volume at 19:27 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 27, 11:27 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.4 hours before the alert went out and 169 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 714 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: -84 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

532 
WUUS54 KMRX 271924
SVRMRX
TNC065-272000-
/O.NEW.KMRX.SV.W.0112.110427T1924Z-110427T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
324 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HAMILTON COUNTY IN EAST TENNESSEE...

* UNTIL 400 PM EDT

* AT 321 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HARRISON...OR 10 MILES NORTHEAST OF CHATTANOOGA...AND MOVING
  NORTHEAST AT 60 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  BIRCHWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO 
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 3521 8534 3524 8531 3542 8503 3541 8502
      3538 8503 3538 8500 3536 8498 3531 8497
      3528 8494 3515 8503 3503 8499 3502 8501
      3498 8522
TIME...MOT...LOC 1923Z 244DEG 61KT 3519 8501

$$

TG

1 follow-up statement

473 
WWUS54 KMRX 271940
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
340 PM EDT WED APR 27 2011

TNC065-272000-
/O.CON.KMRX.SV.W.0112.000000T0000Z-110427T2000Z/
HAMILTON TN-
340 PM EDT WED APR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR HAMILTON COUNTY...

AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR CHATTANOOGA...MOVING NORTHEAST AT 75 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  HARRISON...SODDY-DAISY...MIDDLE VALLEY...OOLTEWAH...COLLEGEDALE...
  SHADY GROVE AND BIRCHWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT WEDNESDAY
AFTERNOON FOR SOUTHWEST NORTH CAROLINA AND CENTRAL TENNESSEE.

&&

LAT...LON 3521 8534 3524 8531 3542 8503 3541 8502
      3538 8503 3538 8500 3536 8498 3531 8497
      3528 8494 3515 8503 3503 8499 3502 8501
      3498 8522
TIME...MOT...LOC 1941Z 243DEG 66KT 3510 8518

$$

MJB

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 27, 2:24 PM EDT, 1 hour earlier.

Area forecast discussion, Apr 27, 2:24 PM EDT, 1 hour before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
224 PM EDT WED APR 27 2011

.SHORT TERM (TONIGHT THROUGH FRIDAY NIGHT)...
THREAT OF SEVERE WEATHER REMAINS HIGH OVER PORTIONS OF THE AREA.
MESOANALYSIS INDICATES THE BEST INSTABILITY IS LOCATED ACROSS AL/MS.
AS A SURFACE LOW TRANSLATES FROM AR TO IN THIS EVENING...THIS AREA
OF INSTABILITY IS EXPECTED TO LIFT NORTHEAST AS WELL. THE POSITION
OF THE JET EXIT REGION OVER THE CUMBERLAND PLATEAU WILL FURTHER
ENHANCE LIFT. THIS WILL BRING ANOTHER ROUND OF STORMS TO THE AREA
THIS EVENING. LOW LEVEL SHEAR WILL REMAIN FAVORABLE FOR SOME TORNADO
POTENTIAL...ALONG WITH DAMAGING STRAIGHT-LINE WINDS AND LARGE HAIL.
ESTIMATE THE TIMING OF THIS NEXT ROUND WILL BE 23Z-06Z.

SURFACE WIND OBSERVATIONS IN THE MOUNTAINS HAVE BEEN IN THE UPPER
END OF WIND ADVISORY CRITERIA. MODELS SHOW A 50-60 KT SOUTHERLY LOW
LEVEL JET WILL BE IN PLACE THIS EVENING...SO A HIGH WIND WARNING
WILL BE ISSUED FOR THE MOUNTAINS OF TN. WILL ALSO EXTEND THE WIND
ADVISORY FOR THE REST OF THE AREA TO 06Z. WINDS SHOULD DROP OFF
WITH FROPA ONCE WINDS TURN MORE WESTERLY AFTER 06Z.

A GOOD PUSH OF COLD AIR FOLLOWS THE FRONT TOMORROW. AFTER SOME
MORNING CLOUDS...WE SHOULD SEE MOSTLY SUNNY SKIES BY AFTERNOON.
TEMPS WILL BE BELOW NORMAL...WITH HIGHS IN THE 60S TO LOWER 70S. THE
PASSAGE OF AN UPPER TROUGH THURSDAY NIGHT/FRIDAY MORNING WILL BRING
A LOW TO SLIGHT CHANCE OF SHOWERS...AND KEEP TEMPS BELOW NORMAL FOR
FRIDAY. OVERNIGHT LOWS WILL DROP INTO THE 40S THURSDAY NIGHT AND
FRIDAY NIGHT.

.LONG TERM (SATURDAY THROUGH WEDNESDAY)...
HIGH PRESSURE IN CONTROL EARLY IN THE EXTENDED FOR QUIET WEATHER
THIS WEEKEND. A COLD FRONT MOVES THROUGH AROUND THE MONDAY TIME
FRAME FOR OUR BEST CHANCE OF CONVECTION DURING THE EXTENDED. THE
FRONT SLOWS DOWN TO OUR EAST AND WILL KEEP A FEW ISOLATED SHOWERS
OVER EASTERN ZONES INTO TUESDAY. HIGH PRESSURE BUILDS BACK IN FOR
WEDNESDAY. FOR TEMPS...GUIDANCE NUMBERS LOOK GOOD AND STAYED CLOSE.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             56  72  47  76  48 / 100   0  10   0   0
KNOXVILLE MCGHEE TYSON AIRPORT, TN  58  69  47  71  45 / 100  10  10   0   0
OAK RIDGE, TN                       56  70  47  71  46 / 100  10  10   0   0
TRI CITIES AIRPORT, TN              59  68  43  68  42 / 100  10  20  20   0

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...WIND ADVISORY UNTIL 2 AM EDT THURSDAY FOR THE FOLLOWING ZONES:
     CHEROKEE...CLAY.

TN...HIGH WIND WARNING UNTIL 2 AM EDT THURSDAY FOR THE FOLLOWING
     ZONES: BLOUNT SMOKY MOUNTAINS...COCKE SMOKY MOUNTAINS...
     JOHNSON...SEVIER SMOKY MOUNTAINS...SOUTHEAST CARTER...
     SOUTHEAST GREENE...SOUTHEAST MONROE...UNICOI.

     WIND ADVISORY UNTIL 3 PM EDT THIS AFTERNOON FOR THE FOLLOWING
     ZONES: BLOUNT SMOKY MOUNTAINS...COCKE SMOKY MOUNTAINS...
     JOHNSON...SEVIER SMOKY MOUNTAINS...SOUTHEAST CARTER...
     SOUTHEAST GREENE...SOUTHEAST MONROE...UNICOI.

     WIND ADVISORY UNTIL 2 AM EDT /1 AM CDT/ THURSDAY FOR THE
     FOLLOWING ZONES: ANDERSON...BLEDSOE...BRADLEY...CAMPBELL...
     CLAIBORNE...EAST POLK...GRAINGER...HAMBLEN...HAMILTON...
     HANCOCK...HAWKINS...JEFFERSON...KNOX...LOUDON...MARION...
     MCMINN...MEIGS...MORGAN...NW BLOUNT...NORTH SEVIER...
     NORTHWEST CARTER...NORTHWEST COCKE...NORTHWEST GREENE...
     NORTHWEST MONROE...RHEA...ROANE...SCOTT TN...SEQUATCHIE...
     SULLIVAN...UNION...WASHINGTON TN...WEST POLK.

VA...WIND ADVISORY UNTIL 2 AM EDT THURSDAY FOR THE FOLLOWING ZONES:
     LEE...RUSSELL...SCOTT...WASHINGTON...WISE.

&&

DGS/MJB

Hazardous weather outlook, Apr 27, 4:55 AM EDT, 10 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
455 AM EDT WED APR 27 2011

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-280900-
CHEROKEE-CLAY-SCOTT TN-CAMPBELL-CLAIBORNE-HANCOCK-HAWKINS-
SULLIVAN-JOHNSON-MORGAN-ANDERSON-UNION-GRAINGER-HAMBLEN-
NORTHWEST COCKE-COCKE SMOKY MOUNTAINS-NORTHWEST GREENE-
SOUTHEAST GREENE-WASHINGTON TN-UNICOI-NORTHWEST CARTER-
SOUTHEAST CARTER-ROANE-LOUDON-KNOX-JEFFERSON-NW BLOUNT-
BLOUNT SMOKY MOUNTAINS-NORTH SEVIER-SEVIER SMOKY MOUNTAINS-
SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE-
SOUTHEAST MONROE-MARION-HAMILTON-BRADLEY-WEST POLK-EAST POLK-LEE-
WISE-SCOTT-RUSSELL-WASHINGTON-
455 AM EDT WED APR 27 2011 /355 AM CDT WED APR 27 2011/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH
CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT

A STRONG COLD FRONT WITH A STRONG WIND FIELD WILL MOVE ACROSS THE
TENNESSEE RIVER VALLEY TODAY...BRINGING THE POTENTIAL FOR A
SIGNIFICANT OUTBREAK OF SEVERE THUNDERSTORMS BY THIS AFTERNOON AND
EVENING. THERE WILL BE THE POTENTIAL FOR WIDESPREAD DAMAGING
WINDS...VERY LARGE HAIL...HEAVY RAINFALL...AND TORNADOES. IN
ADDITION...THERE WILL BE THE POTENTIAL FOR STRONG AND LONG-TRACK
TORNADOES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

GH

In the hours before

Local storm report, Apr 27, 2:42 PM EDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
242 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     HAIL             6 E SOUTH PITTSBURG     35.02N 85.61W
04/27/2011  E1.75 INCH       MARION             TN   TRAINED SPOTTER

&&

Local storm report, Apr 27, 2:50 PM EDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
250 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     TSTM WND DMG     DUNLAP                  35.37N 85.39W
04/27/2011                   SEQUATCHIE         TN   EMERGENCY MNGR

            NUMEROUS TREES DOWN.

&&

Local storm report, Apr 27, 2:56 PM EDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
256 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0244 PM     HAIL             1 SW CHATTANOOGA        35.06N 85.27W
04/27/2011  E1.00 INCH       HAMILTON           TN   AMATEUR RADIO

&&

Local storm report, Apr 27, 2:59 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
259 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0252 PM     FUNNEL CLOUD     CHATTANOOGA             35.07N 85.26W
04/27/2011                   HAMILTON           TN   AMATEUR RADIO

&&

Local storm report, Apr 27, 3:02 PM EDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
302 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0220 PM     TSTM WND DMG     4 SE TRACY CITY         35.22N 85.70W
04/27/2011                   MARION             TN   PUBLIC

            TREES DOWN ON HWY 150 BLOCKING THE ROAD.

&&

Local storm report, Apr 27, 3:23 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
323 PM EDT WED APR 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0320 PM     HAIL             CLEVELAND               35.18N 84.87W
04/27/2011  E1.75 INCH       BRADLEY            TN   TRAINED SPOTTER

&&

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 7:38 AM EDT	Severe Thunderstorm Warning	MRX	Marion, Sequatchie	52 min
Apr 27, 8:16 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe	44 min
Apr 27, 8:25 AM EDT	Severe Thunderstorm Warning	MRX	Hamilton, Marion, Sequatchie	65 min
Apr 27, 8:37 AM EDT	Tornado Warning	MRX	Bradley, Hamilton, Marion	53 min
Apr 27, 8:49 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Bledsoe, Campbell, Morgan, Roane, Scott	56 min
Apr 27, 9:14 AM EDT	Tornado Warning	MRX	Hamilton	46 min
Apr 27, 9:15 AM EDT	Tornado Warning	MRX	Scott	30 min
Apr 27, 9:20 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, Polk	40 min
Apr 27, 9:33 AM EDT	Tornado Warning	MRX	Meigs, Rhea	42 min
Apr 27, 9:39 AM EDT	Severe Thunderstorm Warning	MRX	McMinn, Monroe	66 min
Apr 27, 9:51 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Blount, Campbell, Grainger, Jefferson, Knox and 6 more	54 min
Apr 27, 9:56 AM EDT	Tornado Warning	MRX	McMinn	49 min
Apr 27, 10:10 AM EDT	Tornado Warning	MRX	Loudon, Meigs, Roane	50 min
Apr 27, 10:23 AM EDT	Tornado Warning	MRX	McMinn, Monroe	22 min
Apr 27, 10:47 AM EDT	Tornado Warning	MRX	Anderson, Knox	18 min
Apr 27, 1:25 PM EDT	Tornado Warning	MRX	Marion	65 min
Apr 27, 2:01 PM EDT	Severe Thunderstorm Warning	MRX	Sequatchie	44 min
Apr 27, 2:10 PM EDT	Tornado Warning	MRX	Sequatchie	50 min
Apr 27, 2:23 PM EDT	Tornado Warning	MRX	Bledsoe, Rhea	52 min
Apr 27, 2:27 PM EDT	Tornado Warning	MRX	Hamilton, Marion	48 min
Apr 27, 2:56 PM EDT	Tornado Warning	MRX	Bradley, Polk	64 min
Apr 27, 3:04 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Loudon, McMinn, Meigs, Monroe, Morgan and 2 more	56 min
Apr 27, 3:07 PM EDT	High Wind Warning	MRX	Blount, Carter, Cocke, Greene, Johnson, Monroe and 2 more	11 hr
Apr 27, 3:11 PM EDT	Tornado Warning	MRX	McMinn, Meigs	49 min
Apr 27, 3:38 PM EDT	Tornado Warning	MRX	Anderson, Blount, Knox, Loudon, Morgan, Roane	52 min
Apr 27, 3:43 PM EDT	Tornado Warning	MRX	Loudon, McMinn, Monroe	47 min
Apr 27, 3:53 PM EDT	Areal Flood Advisory	MRX	Bradley, Hamilton	3 hr
Apr 27, 4:00 PM EDT	Tornado Warning	MRX	Bradley, Hamilton, McMinn, Meigs, Polk	60 min
Apr 27, 4:09 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Monroe, Sevier	51 min
Apr 27, 4:25 PM EDT	Tornado Warning	MRX	McMinn, Monroe, Polk	65 min
Apr 27, 4:39 PM EDT	Areal Flood Advisory	MRX	Blount, Bradley, Knox, Loudon, McMinn, Meigs and 3 more	3 hr
Apr 27, 4:51 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Jefferson, Sevier	54 min
Apr 27, 4:56 PM EDT	Tornado Warning	MRX	Blount, Knox, Loudon, Sevier	49 min
Apr 27, 5:16 PM EDT	Tornado Warning	MRX	Hamilton, Marion, Sequatchie	59 min
Apr 27, 5:18 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Morgan, Scott	42 min
Apr 27, 5:29 PM EDT	Tornado Warning	MRX	Blount, Loudon, Monroe	16 min
Apr 27, 5:38 PM EDT	Tornado Warning	MRX	Campbell, Scott	37 min
Apr 27, 5:45 PM EDT	Tornado Warning	MRX	Anderson, Blount, Knox, Loudon, Sevier	32 min
Apr 27, 5:48 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more	57 min
Apr 27, 5:59 PM EDT	Tornado Warning	MRX	Campbell, Claiborne, Morgan, Scott	61 min
Apr 27, 6:01 PM EDT	Tornado Warning	MRX	Bradley, Hamilton	59 min
Apr 27, 6:14 PM EDT	Tornado Warning	MRX	Marion	61 min
Apr 27, 6:39 PM EDT	Tornado Warning	MRX	Bradley, McMinn, Monroe, Polk	66 min
Apr 27, 6:40 PM EDT	Severe Thunderstorm Warning	MRX	Greene, Hawkins, Sullivan, Washington	50 min
Apr 27, 6:43 PM EDT	Tornado Warning	MRX	Hamilton, Marion, Sequatchie	62 min
Apr 27, 6:52 PM EDT	Tornado Warning	MRX	Bledsoe, Rhea	53 min
Apr 27, 6:57 PM EDT	Flash Flood Warning	MRX	Bradley, Hamilton, McMinn, Monroe	3 hr
Apr 27, 7:01 PM EDT	Tornado Warning	MRX	Campbell, Claiborne, Hancock	44 min
Apr 27, 7:01 PM EDT	Tornado Warning	MRX	Bradley, Hamilton, Meigs	59 min
Apr 27, 7:06 PM EDT	Tornado Warning	MRX	Blount, Knox, Monroe, Polk	54 min
Apr 27, 7:13 PM EDT	Flash Flood Warning	MRX	Campbell, Morgan, Scott	3 hr
Apr 27, 7:21 PM EDT	Tornado Warning	MRX	Blount, Bradley, Knox, Loudon, McMinn, Meigs and 3 more	39 min
Apr 27, 7:43 PM EDT	Tornado Warning	MRX	Bledsoe, Hamilton, Rhea, Sequatchie	62 min
Apr 27, 7:49 PM EDT	Tornado Warning	MRX	Blount, Cocke, Hamblen, Jefferson, Knox, Sevier	41 min
Apr 27, 7:53 PM EDT	Flash Flood Warning	MRX	Bledsoe, Marion, Sequatchie	3 hr
Apr 27, 7:54 PM EDT	Tornado Warning	MRX	Anderson, Blount, Claiborne, Grainger, Hamblen, Jefferson and 6 more	51 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2011 Every severe thunderstorm warning in 2011

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.