Alert archive / Tennessee / Flash Flood Warnings in 2011
Flash Flood Warning 21, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Sep 5, 2011, 11:45 AM EDT for 4 counties in Tennessee. It was in force for 6 hr. 5 reports 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
- Sep 5, 2011, 11:45 AM EDT (15:45 UTC)
- Expired
- Sep 5, 2011, 5:45 PM EDT
- In force
- 6 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bradley County, TN, Hamilton County, TN, McMinn County, TN, Meigs County, TN
The radar
The Northeast Alabama radar (KHTX), 131 km from the middle of the area, began a volume at 15:48 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 |
|---|---|---|---|
| Sep 5, 11:45 AM EDT | FLASH FLOOD | Riceville, TN | DISPATCH REPORTED COUNTY ROAD 726 NEARLY UNPASSABLE DUE TO WATER COVERING THE ROADWAY. |
| Sep 5, 11:52 AM EDT | FLASH FLOOD | Chattanooga, TN | DIPATCH REPORTED NUMEROUS ROADS CLOSED DUE TO HIGH WATER AND STUCK VEHICLES IN THE CHATTANOOGA AREA. THESE ROADS INCLUDE GUNBARREL ROAD, SHALLOWFORD DRIVE, CHICKAMAUGA ROAD, VALLEY BROOK ROAD, NORTH MOORE ROAD, AND ARROW ROAD. WAIST-DEEP WATER WAS REPORTED ON |
| Sep 5, 12:03 PM EDT | FLASH FLOOD | Cleveland, TN | DISPATCH REPORTED MULTIPLE ROADS CLOSED DUE TO HIGH WATER AND STALLED VEHICLES IN THE CLEVELAND AREA. THESE ROADS INCLUDE GEORGETOWN ROAD, MOUSE CREEK ROAD, AND VICTORY STREET. WATER WAS REPORTED REACHING UP TO THE HEADLIGHTS ON PARKED CARS. |
| Sep 5, 1:13 PM EDT | FLASH FLOOD | 2 Ne Cleveland, TN | DISPATCH REPORTED WATER COMING OVER A BRIDGE AT THE INTERSECTION OF BLYTHE FERRY ROAD AND OCOEE CROSSING NEAR CLEVELAND. |
| Sep 5, 2:58 PM EDT | FLASH FLOOD | Chattanooga, TN | DISPATCH REPORTED MULTIPLE ROADS CLOSED DUE TO RISING WATER AND STALLED VEHICLES NEAR CHATTANOOGA. |
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, 3.8 hours before the alert went out and 180 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 457 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
107
WGUS54 KMRX 051545
FFWMRX
TNC011-065-107-121-052145-
/O.NEW.KMRX.FF.W.0021.110905T1545Z-110905T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
1145 AM EDT MON SEP 5 2011
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BRADLEY COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF CLEVELAND...
HAMILTON COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF CHATTANOOGA...
MCMINN COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF ATHENS...
MEIGS COUNTY IN EAST TENNESSEE...
THIS INCLUDES THE CITY OF DECATUR...
* UNTIL 545 PM EDT MONDAY
* AT 1138 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
FLOODING FROM HEAVY RAIN THROUGHOUT THE CHATTANOOGA AREA AND THE
CLEVELAND AREA. PORTIONS OF MEIGS AND MCMINN COUNTIES HAVE ALSO
RECEIVED HEAVY RAIN...WITH ADDITIONAL RAINFALL EXPECTED TO CAUSE
SIGNIFICANT FLOODING.
* NUMEROUS ROADS AROUND CHATTANOOGA AND CLEVELAND HAVE BEEN CLOSED
DUE TO FLOODING. CONTINUED HEAVY RAINFALL WILL CREATE A DANGEROUS
FLOODING SITUATION THROUGH THE AFTERNOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3547 8497 3544 8495 3544 8491 3548 8491
3550 8486 3555 8487 3555 8479 3570 8477
3568 8474 3572 8472 3565 8461 3562 8452
3562 8454 3547 8445 3527 8461 3524 8472
3517 8470 3498 8485 3498 8539
$$
DGS2 follow-up statements
978
WGUS74 KMRX 051710
FFSMRX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
110 PM EDT MON SEP 5 2011
TNC011-065-107-121-052145-
/O.CON.KMRX.FF.W.0021.000000T0000Z-110905T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BRADLEY TN-HAMILTON TN-MCMINN TN-MEIGS TN-
110 PM EDT MON SEP 5 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
MEIGS...MCMINN...HAMILTON AND BRADLEY COUNTIES...
AT 102 PM EDT/1202 PM CDT/...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
FLASH FLOODING THROUGHOUT THE WARNED AREA. NUMEROUS ROADS ARE
FLOODED AND CLOSED IN CHATTANOOGA AND IN CLEVELAND. WATER IS
OVERFLOWING A BRIDGE IN CLEVELAND. WATER IS BEGINNING TO FLOOD SOME
HOMES. CONTINUED HEAVY RAINFALL WILL CREATE A DANGEROUS FLOODING
SITUATION THROUGH THE AFTERNOON.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARRISON...CHARLESTON...DECATUR AND ATHENS.
SOME CREEKS THAT WILL FLOOD INCLUDE BUT ARE NOT LIMITED TO CHESTNUT
CREEK...WOLFEVER CREEK...SPRING CREEK...ALLEN BRANCH...MOUSE
CREEK...BYMER CREEK...AND CANDIES CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3547 8497 3544 8495 3544 8491 3548 8491
3550 8486 3555 8487 3555 8479 3570 8477
3568 8474 3572 8472 3565 8461 3562 8452
3562 8454 3547 8445 3527 8461 3524 8472
3517 8470 3498 8485 3498 8539
$$
DGS819
WGUS74 KMRX 051906
FFSMRX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
306 PM EDT MON SEP 5 2011
TNC011-065-107-121-052145-
/O.CON.KMRX.FF.W.0021.000000T0000Z-110905T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BRADLEY TN-HAMILTON TN-MCMINN TN-MEIGS TN-
306 PM EDT MON SEP 5 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
MEIGS...MCMINN...HAMILTON AND BRADLEY COUNTIES...
AT 301 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS CONTINUED TO REPORT
FLASH FLOODING. NUMEROUS ROADS HAVE BEEN CLOSED ACROSS THE AREA FROM
FLOODING. MEASURED RAINFALL AMOUNTS IN THE CHATTANOOGA AND CLEVELAND
AREAS ARE REPORTED BETWEEN 4 AND 7 INCHES.
MODERATE TO OCCASIONALLY HEAVY RAIN WILL CONTINUE THROUGH THE
AFTERNOON AND INTO THE EVENING. ADDITIONAL RAINFALL ON TOP OF THESE
EXTREMELY HIGH AMOUNTS WILL MAKE A DANGEROUS FLOODING SITUATION EVEN
WORSE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING IS OCCURRING. MOST FLOOD RELATED DEATHS OCCUR IN
AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER
MOVE UP TO HIGHER GROUND. IF YOU COME TO A FLOODED OR CLOSED
ROAD...TURN AROUND! DON'T DROWN! BETTER TO BE SAFE NOW THAN SORRY
LATER.
&&
LAT...LON 3547 8497 3544 8495 3544 8491 3548 8491
3550 8486 3555 8487 3555 8479 3570 8477
3568 8474 3572 8472 3565 8461 3562 8452
3562 8454 3547 8445 3527 8461 3524 8472
3517 8470 3498 8485 3498 8539
$$
DGSThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 8:34 AM EDT | Areal Flood Advisory | MRX | Bledsoe, Bradley, Hamilton, McMinn, Marion, Meigs and 2 more | 6 hr |
| Sep 5, 11:01 AM EDT | Areal Flood Advisory | MRX | Anderson, Blount, Grainger, Jefferson, Knox, Loudon and 6 more | 6 hr |
| Sep 5, 11:54 AM EDT | Flash Flood Warning | MRX | Anderson, Blount, Knox, Loudon, Monroe, Roane | 6 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Sevier | 37 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Cocke | 19 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Hamilton | 63 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Cocke, Jefferson | 19 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Cocke, Greene, Hamblen, Unicoi, Washington | 31 hr |
| Sep 5, 12:32 PM EDT | River Flood Warning | MRX | Bledsoe, Marion, Sequatchie | 23 hr |
| Sep 5, 12:45 PM EDT | Flash Flood Warning | MRX | Claiborne, Grainger, Hancock, Knox, Union | 5 hr |
| Sep 5, 5:20 PM EDT | Areal Flood Warning | MRX | Bledsoe, Bradley, Hamilton, McMinn, Marion, Meigs and 4 more | 12 hr |
| Sep 5, 5:37 PM EDT | Areal Flood Warning | MRX | Anderson, Blount, Campbell, Claiborne, Grainger, Jefferson and 7 more | 12 hr |
Nearby
Flash Flood Warnings in Tennessee, 2011Every flash flood 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.