Alert archive / Tennessee / Flash Flood Warnings in 2017
Flash Flood Warning 71, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Aug 28, 2017, 10:40 AM CDT for 5 counties in Tennessee. It was in force for 3 hr. 2 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
- Aug 28, 2017, 10:40 AM CDT (15:40 UTC)
- Expired
- Aug 28, 2017, 1:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crockett County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Lauderdale County, TN
The radar
The Memphis radar (KNQA), 84 km from the middle of the area, began a volume at 15:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 28, 10:45 AM CDT | FLASH FLOOD | 2 Ssw Maury Junction, TN | STATE ROUTE 189 CLOSED IN BOTH DIRECTIONS BETWEEN JOHNNY POWELL ROAD AND OLD MOUNDS ROAD DUE TO HIGH WATER. |
| Aug 28, 11:55 AM CDT | FLASH FLOOD | Alamo, TN | SECTIONS OF HIGHWAY 152 IN ALAMO WERE FLOODED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KBYH), launched 12:00Z, 3.7 hours before the alert went out and 133 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
- 456 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
436
WGUS54 KMEG 281540
FFWMEG
TNC033-045-053-075-097-281845-
/O.NEW.KMEG.FF.W.0071.170828T1540Z-170828T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
1040 AM CDT MON AUG 28 2017
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Crockett County in western Tennessee...
Southeastern Dyer County in western Tennessee...
Southwestern Gibson County in western Tennessee...
Eastern Lauderdale County in western Tennessee...
Central Haywood County in western Tennessee...
* Until 145 PM CDT
* At 1039 AM CDT...Doppler Radar estimates 2 to 4 inches of rain has
occurred over the past 2 hours. Showers and thunderstorms will
produce an additional 1 to 3 inches of rain over the next 3 hours.
* Some locations that will experience flooding include...
Dyersburg, Brownsville, Alamo, Bells, Halls, Nutbush, Forked Deer,
Chestnut Bluff, Belle Eagle, Holly Grove, Unionville, Maury City,
Friendship, Gates, Fowlkes, Christmasville, Bonicord, Central,
Rohoboth and Maury Junction.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3605 8909 3598 8910 3562 8907 3558 8908
3557 8947 3599 8954 3606 8916
$$2 follow-up statements
004
WGUS74 KMEG 281641
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
1141 AM CDT MON AUG 28 2017
TNC033-045-053-075-097-281845-
/O.CON.KMEG.FF.W.0071.000000T0000Z-170828T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crockett TN-Dyer TN-Gibson TN-Lauderdale TN-Haywood TN-
1141 AM CDT MON AUG 28 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
CROCKETT...SOUTHEASTERN DYER...SOUTHWESTERN GIBSON...EASTERN
LAUDERDALE AND CENTRAL HAYWOOD COUNTIES...
At 1138 AM CDT, trained weather spotters measured 3.9 inches of rain
since 8 AM CDT this morning 3 miles northeast of Bells in Crocket
county. Weather spotters also reported several roads closed from
flooding throughout the warned area. This is a dangerous situation
as radar estimates that 2 to 4 inches of rain has occurred over the
past 3 hours. Showers and thunderstorms will produce an additional
1 to 2 inches of rain over the next 2 hours.
Some locations that will experience flooding include...
Dyersburg, Brownsville, Alamo, Bells, Halls, Nutbush, Forked Deer,
Chestnut Bluff, Belle Eagle, Holly Grove, Unionville, Maury City,
Friendship, Gates, Fowlkes, Christmasville, Bonicord, Central,
Rohoboth and Maury Junction.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3605 8909 3598 8910 3562 8907 3558 8908
3557 8947 3599 8954 3606 8916
$$488
WGUS74 KMEG 281745
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
1245 PM CDT MON AUG 28 2017
TNC033-045-053-075-097-281755-
/O.CAN.KMEG.FF.W.0071.000000T0000Z-170828T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crockett TN-Dyer TN-Gibson TN-Lauderdale TN-Haywood TN-
1245 PM CDT MON AUG 28 2017
...THE FLASH FLOOD WARNING FOR CROCKETT...SOUTHEASTERN DYER...
SOUTHWESTERN GIBSON...EASTERN LAUDERDALE AND CENTRAL HAYWOOD COUNTIES
IS CANCELLED...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 3605 8909 3598 8910 3562 8907 3558 8908
3557 8947 3599 8954 3606 8916
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 6:41 AM CDT | Flash Flood Warning | MEG | Benton, Carroll, Decatur, Henderson | 6 hr |
| Aug 28, 7:41 AM CDT | Flash Flood Warning | MEG | Carroll, Gibson, Henderson, Madison | 5 hr |
| Aug 28, 8:41 AM CDT | Flash Flood Warning | MEG | Carroll, Crockett, Gibson, Madison | 4 hr |
Nearby
Flash Flood Warnings in Tennessee, 2017Every flash flood warning in 2017
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.