Alert archive / Mississippi / Flash Flood Warnings in 2010

Flash Flood Warning 233, NWS Memphis, TN

July 16, 20108 counties in Mississippi

NWS Memphis, TN issued this flash flood warning at Jul 16, 2010, 12:06 PM CDT for 8 counties in Mississippi. It was in force for 3 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: Jul 16, 2010, 12:06 PM CDT (17:06 UTC)
Expired: Jul 16, 2010, 3:00 PM CDT
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Alcorn County, MS, Itawamba County, MS, Lee County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS

The radar

The Columbus AFB radar (KGWX), 78 km from the middle of the area, began a volume at 17:08 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 (KLZK), launched 12:00Z, 5.1 hours before the alert went out and 122 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: 2257 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 976 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jul 16, 11:04 AM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, Jul 16, 11:04 AM CDT, 1 hour 2 minutes before

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Hazardous weather outlook, Jul 16, 4:31 AM CDT, 7 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
431 AM CDT FRI JUL 16 2010

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-171145-
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-
431 AM CDT FRI JUL 16 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS...
THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

SOME STRONG TO SEVERE THUNDERSTORMS CAN BE EXPECTED TODAY...
MAINLY SOUTHEAST OF A UNION CITY TENNESSEE TO MEMPHIS TO MARIANNA
ARKANSAS LINE BETWEEN 10 AM AND 10 PM. DAMAGING WINDS UP TO 60 MPH
AND LOCALLY HEAVY RAINFALL OF A FEW INCHES CAPABLE OF PRODUCING
FLASH FLOODING ARE THE MAIN HAZARDS.

A HEAT ADVISORY IS IN EFFECT BETWEEN 10 AM AND 8 PM ALONG AND
SOUTH OF A WYNNE ARKANSAS TO MEMPHIS TO SAVANNAH TENNESSEE LINE
WHERE HEAT INDEX VALUES WILL BE 105 TO 109 DEGREES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A FEW STRONG TO PERHAPS SEVERE THUNDERSTORMS ARE POSSIBLE
ON SATURDAY MAINLY SOUTH OF A CLARKSDALE TO BOONEVILLE
MISSISSIPPI LINE. GUSTY WINDS AND LOCALIZED FLASH FLOODING
WILL BE THE MAIN HAZARDS.

ADDITIONAL HEAT ADVISORIES ARE POSSIBLE WEST OF THE MISSISSIPPI
RIVER ON SATURDAY...AND ACROSS MUCH OF THE AREA SUNDAY INTO NEXT
WEEK WITH HEAT INDEX READINGS CLIMBING TO BETWEEN 105 AND 109
DEGREES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED IN A FEW LOCATIONS MAINLY
SOUTHEAST OF A UNION CITY TENNESSEE TO MEMPHIS TO MARIANNA
ARKANSAS LINE BETWEEN 10 AM AND 10 PM TODAY.

MBS

In the hours before

Special weather statement, Jul 16, 11:01 AM CDT, 1 hour 5 minutes before

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Special weather statement, Jul 16, 11:13 AM CDT, 53 minutes before

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Special weather statement, Jul 16, 11:48 AM CDT, 18 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 7:45 PM CDT	Flash Flood Warning	MEG	Decatur	2 hr
Jul 16, 4:09 AM CDT	Heat Advisory	MEG	Fayette, Hardeman, Hardin, McNairy, Shelby	11 hr
Jul 16, 1:35 PM CDT	Flash Flood Warning	MEG	Hardeman, McNairy	3 hr
Jul 16, 1:58 PM CDT	Severe Thunderstorm Warning	MEG	Decatur, Hardin, Henderson	47 min
Jul 16, 2:00 PM CDT	Flash Flood Warning	MEG	Decatur, Hardin, Henderson	3 hr
Jul 16, 2:12 PM CDT	Severe Thunderstorm Warning	MEG	Hardeman	48 min
Jul 16, 2:18 PM CDT	Flash Flood Warning	MEG	Hardeman	3 hr
Jul 16, 2:59 PM CDT	Flash Flood Warning	MEG	Chester, Fayette, Hardeman, McNairy	3 hr
Jul 16, 4:29 PM CDT	Flash Flood Warning	MEG	Carroll, Gibson, Henderson, Henry, Madison	86 min
Jul 16, 4:34 PM CDT	Severe Thunderstorm Warning	MEG	Henry, Weakley	21 min
Jul 16, 11:18 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Lee, Pontotoc, Prentiss, Tippah, Union	42 min
Jul 16, 11:59 AM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Lee, Pontotoc, Prentiss, Union	46 min
Jul 16, 12:40 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	65 min
Jul 16, 12:55 PM CDT	Flash Flood Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc	2 hr
Jul 16, 2:27 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Panola, Tallahatchie, Yalobusha	63 min
Jul 16, 2:43 PM CDT	Flash Flood Warning	MEG	Lafayette, Panola, Quitman, Tallahatchie, Yalobusha	3 hr
Jul 16, 2:59 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Panola	46 min
Jul 16, 3:34 PM CDT	Flash Flood Warning	MEG	Lafayette, Panola	4 hr
Jul 16, 4:09 PM CDT	Flash Flood Warning	MEG	Benton, Lafayette, Marshall, Panola, Tate	3 hr
Jul 16, 6:03 PM CDT	Flash Flood Warning	MEG	Chickasaw, Lee, Monroe, Pontotoc, Union	117 min
Jul 16, 6:44 PM CDT	Flash Flood Warning	MEG	Itawamba, Lee, Monroe	2 hr
Jul 16, 5:33 PM CDT	Flash Flood Warning	MEG	Craighead	39 min

Nearby

Flash Flood Warnings in Mississippi, 2010 Every flash flood warning in 2010

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.