Alert archive / Arkansas / Flash Flood Warnings in 2009
Flash Flood Warning 221, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Oct 9, 2009, 6:04 AM CDT for DeSoto County, Tunica County, Mississippi; Shelby County, Tennessee; 4 counties in Arkansas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 9, 2009, 6:04 AM CDT (11:04 UTC)
- Expired
- Oct 9, 2009, 12:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crittenden County, AR, Cross County, AR, Lee County, AR, St. Francis County, AR, DeSoto County, MS, Tunica County, MS, Shelby County, TN
The radar
The Memphis radar (KNQA), 62 km from the middle of the area, began a volume at 11:07 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
Nashville Metro, TN (KBNA), launched 00:00Z, 11.1 hours before the alert went out and 367 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
- 1054 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 757 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 292 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 7.0
What forecasters said that day
The local office's own words before this flash flood warning 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 warning went out at Oct 9, 4:21 AM CDT, 1 hour 43 minutes earlier.
Area forecast discussion, Oct 9, 4:21 AM CDT, 1 hour 43 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEMPHIS TN 447 AM CDT FRI OCT 9 2009 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-101200- 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- 447 AM CDT FRI OCT 9 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS... THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE. .DAY ONE...TODAY AND TONIGHT HEAVY RAINFALL OF 1 TO 4 INCHES MAY CAUSE FLASH FLOODING ACROSS PARTS OF THE MIDSOUTH THROUGH 7 PM. A FLASH FLOOD WATCH IS IN EFFECT FOR AREAS ALONG AND NORTH OF A CLARKSDALE MISSISSIPPI TO IUKA MISSISSIPPI LINE. THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS MUCH OF THE MIDSOUTH TODAY...BEFORE 10 AM NORTH OF INTERSTATE 40...AND BETWEEN 8 AM AND 7 PM SOUTH OF INTERSTATE 40. THE MAIN HAZARD WILL BE ISOLATED DAMAGING WIND OF 60 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ADDITIONAL HEAVY RAINFALL ALONG A STATIONARY FRONT MAY CAUSE FLOODING ALONG AND SOUTH OF INTERSTATE 40 LATE SUNDAY NIGHT THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER ACTIVATION MAY BE NECESSARY THROUGH 10 AM NORTH OF INTERSTATE 40...AND BETWEEN 8 PM AND 7 PM SOUTH OF INTERSTATE 40. PLEASE RELAY ANY REPORTS OF FLOODING TODAY TO THE NATIONAL WEATHER SERVICE IN MEMPHIS. MBS
In the hours before
Special weather statement, Oct 9, 3:49 AM CDT, 2 hours 15 minutes before
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 10:48 AM CDT | Severe Thunderstorm Warning | MEG | Coahoma, DeSoto, Marshall, Panola, Quitman, Tate and 1 more | 42 min |
| Oct 9, 11:27 AM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Lafayette, Marshall, Panola, Quitman, Tallahatchie and 2 more | 63 min |
| Oct 9, 1:47 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw, Yalobusha | 43 min |
| Oct 9, 2:20 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw, Monroe | 40 min |
| Oct 9, 2:28 PM CDT | Tornado Warning | MEG | Chickasaw, Monroe | 32 min |
| Oct 9, 2:46 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 44 min |
| Oct 9, 2:48 PM CDT | Tornado Warning | MEG | Monroe | 42 min |
| Oct 9, 3:38 AM CDT | Flash Flood Warning | MEG | Lake | 6 hr |
| Oct 9, 9:35 AM CDT | Flash Flood Warning | MEG | Lauderdale, Tipton | 6 hr |
| Oct 9, 9:49 AM CDT | Flash Flood Warning | MEG | Dyer, Lake, Obion | 6 hr |
| Oct 8, 11:22 PM CDT | Severe Thunderstorm Warning | MEG | Randolph | 45 min |
| Oct 9, 12:22 AM CDT | Flash Flood Warning | MEG | Clay, Greene, Lawrence, Randolph | 14 hr |
Nearby
Flash Flood Warnings in Arkansas, 2009Flash Flood Warnings in Mississippi, 2009Flash Flood Warnings in Tennessee, 2009Every flash flood warning in 2009
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.