Alert archive / Tennessee / Flash Flood Watches in 2013
Flash Flood Watch 7, NWS Memphis, TN
NWS Memphis, TN issued this flash flood watch at Aug 8, 2013, 8:37 PM CDT for 14 counties in Tennessee; 10 counties in Arkansas. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2013, 8:37 PM CDT (01:37 UTC)
- Expired
- Aug 9, 2013, 5:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS Memphis, TN
- Flood severity
- None
All 24 counties
Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lawrence County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, St. Francis County, AR, Carroll County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Tipton County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 59 km from the middle of the area, began a volume at 01:37 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.
The nearest sounding before it
Little Rock, AR (KBYH), launched 00:00Z, 1.6 hours before the alert went out and 117 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
- 3149 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Memphis, TN wrote its last area forecast discussion before this flash flood watch went out at Aug 8, 8:14 PM CDT, 23 minutes earlier.
Area forecast discussion, Aug 8, 8:14 PM CDT, 23 minutes before
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</html>Hazardous weather outlook, Aug 8, 7:51 PM CDT, 46 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MEMPHIS TN 751 PM CDT THU AUG 8 2013 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-100300- ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA- CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER- FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY- ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON- MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT- PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY- ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA- UNION-WEAKLEY-YALOBUSHA- 751 PM CDT THU AUG 8 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS... THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE. .DAY ONE...TONIGHT A FEW SEVERE THUNDERSTORMS ARE POSSIBLE UNTIL MIDNIGHT ACROSS PORTIONS OF EASTERN ARKANSAS AND THE MISSOURI BOOTHEEL. DAMAGING WINDS...LARGE HAIL...AND LOCALLY HEAVY RAINFALL WITH LOCALIZED FLASH FLOODING ARE POSSIBLE. OTHERWISE FOR TONIGHT...A FEW STRONG STORMS WILL BE POSSIBLE WITH STRONG GUSTY WINDS AND HEAVY RAINFALL WITH LOCALIZED FLASH FLOODING...MAINLY ACROSS NORTHEAST ARKANSAS...THE MISSOURI BOOTHEEL AND NORTHWEST TENNESSEE. A HEAT ADVISORY IS IN EFFECT FOR EAST CENTRAL ARKANSAS...EXTREME SOUTHWEST TENNESSEE AND MUCH OF NORTH MISSISSIPPI. OVERNIGHT LOWS IN THE MID AND UPPER 70S WILL PROVIDE LITTLE RELIEF FROM THE HEAT. THIS INCLUDES MEMPHIS AND TUPELO. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A HEAT ADVISORY WILL REMAIN IN EFFECT THROUGH FRIDAY EVENING FOR EAST CENTRAL ARKANSAS...EXTREME SOUTHWEST TENNESSEE AND MUCH OF NORTH MISSISSIPPI. HEAT INDEX VALUES WILL AGAIN REACH 105 TO 107 DEGREES. THIS AREA INCLUDES MEMPHIS AND TUPELO. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION HAS BEEN REQUESTED ACROSS PORTIONS OF EAST ARKANSAS AND THE MISSOURI BOOTHEEL UNTIL MIDNIGHT. PLEASE RELAY ANY REPORTS OF SEVERE WEATHER OR FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN MEMPHIS. JCL
In the hours before
Special weather statement, Aug 8, 6:37 PM CDT, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 637 PM CDT THU AUG 8 2013 ARZ028-TNZ048-090030- MISSISSIPPI AR-LAUDERDALE TN- 637 PM CDT THU AUG 8 2013 ...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT WEATHER ADVISORY UNTIL 730 PM CDT FOR... CENTRAL MISSISSIPPI COUNTY IN EASTERN ARKANSAS... WESTERN LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE... A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT LEAST 40 MPH WAS LOCATED 5 MILES NORTHWEST OF OSCEOLA AT 638 PM CDT...MOVING EAST AT 10 MPH. VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING WILL OCCUR WITH THIS THUNDERSTORM. PEOPLE IN LAUDERDALE AND MISSISSIPPI COUNTIES...INCLUDING LOCATIONS NEAR FORT PILLOW STATE PARK...KEISER...LUXORA AND OSCEOLA...SHOULD MONITOR THIS STORM CLOSELY. THIS SIGNIFICANT WEATHER ALERT ALSO INCLUDES BIG LAKE. .A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT FOR THE ADVISORY AREA. && LAT...LON 3593 8976 3563 8979 3555 9028 3582 9028 TIME...MOT...LOC 2338Z 275DEG 8KT 3577 9004
Special weather statement, Aug 8, 7:08 PM CDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
708 PM CDT THU AUG 8 2013
TNZ019-020-048-051-090100-
CROCKETT TN-DYER TN-GIBSON TN-LAUDERDALE TN-
708 PM CDT THU AUG 8 2013
...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 800 PM CDT FOR...
NORTHWESTERN CROCKETT COUNTY IN NORTHWEST TENNESSEE...
SOUTHERN DYER COUNTY IN NORTHWEST TENNESSEE...
WESTERN GIBSON COUNTY IN NORTHWEST TENNESSEE...
NORTHEASTERN LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...
A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT
LEAST 40 MPH WAS LOCATED 4 MILES NORTH OF CHESTNUT BLUFF AT 708 PM
CDT...MOVING EAST AT 5 MPH.
VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING WILL
OCCUR WITH THIS THUNDERSTORM.
PEOPLE IN CROCKETT...DYER...GIBSON AND LAUDERDALE COUNTIES...
INCLUDING LOCATIONS NEAR DYERSBURG...SHOULD MONITOR THIS STORM
CLOSELY.
&&
LAT...LON 3613 8902 3587 8900 3581 8935 3582 8940
3580 8941 3578 8956 3603 8956
TIME...MOT...LOC 0008Z 275DEG 4KT 3592 8935Special weather statement, Aug 8, 8:11 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
811 PM CDT THU AUG 8 2013
TNZ003-020-021-090145-
WEAKLEY TN-CARROLL TN-GIBSON TN-
811 PM CDT THU AUG 8 2013
...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 845 PM CDT FOR...
NORTHWESTERN CARROLL COUNTY IN NORTHWEST TENNESSEE...
NORTHEASTERN GIBSON COUNTY IN NORTHWEST TENNESSEE...
SOUTHERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...
A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT
LEAST 40 MPH WAS LOCATED 5 MILES EAST OF BRADFORD AT 812 PM CDT...
MOVING NORTHEAST AT 10 MPH.
VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING WILL
OCCUR WITH THIS THUNDERSTORM.
PEOPLE IN CARROLL...GIBSON AND WEAKLEY COUNTIES SHOULD MONITOR THIS
STORM CLOSELY.
&&
LAT...LON 3629 8852 3628 8852 3628 8853 3619 8853
3603 8854 3595 8884 3621 8894
TIME...MOT...LOC 0112Z 243DEG 9KT 3607 8873The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:08 PM CDT | Special Weather Statement | MEG | Dyer | 52 min |
| Aug 8, 8:05 PM CDT | Flash Flood Warning | MEG | Carroll, Gibson, Weakley | 3 hr |
| Aug 8, 8:11 PM CDT | Special Weather Statement | MEG | Weakley | 34 min |
| Aug 9, 11:00 AM CDT | Heat Advisory | MEG | Chester, Decatur, Fayette, Hardeman, Hardin, Haywood and 5 more | 9 hr |
| Aug 9, 4:11 PM CDT | Flash Flood Warning | MEG | Hardin | 2 hr |
| Aug 8, 10:51 PM CDT | Flash Flood Warning | MEG | Calhoun, Pontotoc | 3 hr |
| Aug 8, 11:06 PM CDT | Special Weather Statement | MEG | Calhoun | 24 min |
| Aug 9, 2:34 PM CDT | Flash Flood Warning | MEG | Lee | 3 hr |
| Aug 9, 3:42 PM CDT | Flash Flood Warning | MEG | Prentiss | 3 hr |
| Aug 9, 4:27 PM CDT | Flash Flood Warning | MEG | Itawamba | 93 min |
| Aug 8, 11:22 PM CDT | Special Weather Statement | MEG | Craighead | 38 min |
| Aug 8, 11:56 PM CDT | Flash Flood Warning | MEG | Craighead, Lawrence | 3 hr |
| Aug 8, 11:56 PM CDT | Special Weather Statement | MEG | Craighead, Greene | 34 min |
| Aug 9, 12:26 AM CDT | Flash Flood Warning | MEG | Clay, Greene | 3 hr |
Nearby
Flash Flood Watches in Tennessee, 2013Flash Flood Watches in Arkansas, 2013Every flash flood watch in 2013
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.