Alert archive / Mississippi / Flash Flood Watches in 2009
Flash Flood Watch 5, NWS Jackson, MS
NWS Jackson, MS issued this flash flood watch at Mar 27, 2009, 3:53 AM CDT for 47 counties in Mississippi; 9 parishes in Louisiana; Ashley County, Chicot County, Arkansas. It took effect at Mar 27, 2009, 6:00 PM CDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Mar 27, 2009, 3:53 AM CDT (08:53 UTC)
- In effect from
- Mar 27, 2009, 6:00 PM CDT
- Expired
- Mar 28, 2009, 6:00 AM CDT
- In force
- 12 hr
- Issued by
- NWS Jackson, MS
- Flood severity
- None
All 58 counties
Ashley County, AR, Chicot County, AR, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Attala County, MS, Bolivar County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 32 km from the middle of the area, began a volume at 08:54 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
Jackson, MS (KJAN), launched 00:00Z, 8.9 hours before the alert went out and 24 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
- 45 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1730 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Jackson, MS wrote its last area forecast discussion before this flash flood watch went out at Mar 26, 11:12 PM CDT, 4 hours 41 minutes earlier.
Area forecast discussion, Mar 26, 11:12 PM CDT, 4 hours 41 minutes before
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</html>Hazardous weather outlook, Mar 26, 2:33 PM CDT, 13 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 233 PM CDT THU MAR 26 2009 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 271945- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR- SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES- CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON- NOXUBEE-ISSAQUENA-SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER- WARREN-HINDS-RANKIN-SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH- SIMPSON-SMITH-JASPER-CLARKE-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN- LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST- 233 PM CDT THU MAR 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ARKANSAS...NORTHEAST LOUISIANA AND CENTRAL MISSISSIPPI. .DAY ONE...TONIGHT AND FRIDAY ANOTHER ROUND OF HEAVY RAIN AND LOCALLY STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TONIGHT AS THE ACTIVE WEATHER PATTERN ACROSS THE ARKLAMISS REGION CONTINUES. STORMS SWEEPING ACROSS THE AREA LAST NIGHT HAVE PUSHED UNSTABLE AIR TEMPORARILY TOWARD THE GULF COAST...BUT EXPECT BUILDING SOUTHERLY FLOW TO BEGIN TO RETURN MOIST AND UNSTABLE AIR BACK IN FROM THE GULF OF MEXICO THIS AFTERNOON. THE COMBINATION OF A RETURNING WARM FRONT...MOIST AND UNSTABLE SOUTHERLY FLOW FROM THE GULF OF MEXICO...AND ANOTHER UPPER LEVEL DISTURBANCE MOVING THROUGH THE REGION IS EXPECTED TO BRING WIDESPREAD RAIN AND THUNDERSTORMS TO MUCH OF THE REGION TONIGHT. AT THIS TIME IT APPEARS SEVERE WEATHER IS MOST LIKELY TONIGHT SOUTH OF THE INTERSTATE TWENTY CORRIDOR WHERE LEVELS OF INSTABILITY AND WIND SHEAR WILL MAKE ALL MODES OF SEVERE WEATHER POSSIBLE. IN ADDITION...RAINFALL AMOUNTS LOCALLY UP TO 3 INCHES IN THESE AREAS WILL BRING A FLOODING RISK. FURTHER NORTH...LOWER LEVELS OF INSTABILITY WILL MAKE THE POTENTIAL FOR SEVERE WEATHER LOWER...BUT HEAVY RAINFALL OVER ONE INCH IN SOME AREAS WILL STILL BE POSSIBLE. GIVEN THE RECENT HEAVY RAINFALL...THESE AMOUNTS ALSO HAVE POTENTIAL TO CAUSE FLOODING PROBLEMS. .DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY A MORE POWERFUL STORM SYSTEM WILL BE GATHERING OVER THE ARKLATEX REGION ON FRIDAY AND PUSHING NORTHEAST WITH IMPRESSIVE MOISTURE...INSTABILITY AND WIND SHEAR COMBINING ACROSS OUR REGION FOR AN OUTBREAK OF SEVERE STORMS INCLUDING TORNADOES FROM FRIDAY AFTERNOON THROUGH FRIDAY NIGHT. MOST OF THE AREA WILL BE AT RISK FOR SEVERE STORMS THROUGH THE NIGHT. RESIDENTS SHOULD STAY WEATHER ALERT FOR UPDATES ON THIS DANGEROUS STORM SYSTEM. IN ADDITION TO THE SEVERE WEATHER RISK...RAIN AND THUNDERSTORMS SHOULD BRING LOCALIZED RAIN AMOUNTS OF 1 TO 2 INCHES TO AREAS WHERE THE GROUND IS ALREADY SATURATED. THIS WILL CAUSE ADDITIONAL FLOODING CONCERNS. OTHERWISE...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER WILL BE LOW FROM SATURDAY THROUGH NEXT WEDNESDAY. .SPOTTER CALL TO ACTION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER OPERATIONS...MAY BE NEEDED TONIGHT...AND WILL LIKELY BE NEEDED FRIDAY AFTERNOON AND FRIDAY NIGHT. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 15
In the hours before
Special weather statement, Mar 27, 1:40 AM CDT, 2 hours 13 minutes before
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</html>Special weather statement, Mar 27, 3:38 AM CDT, 15 minutes before
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</html>Special weather statement, Mar 27, 3:38 AM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 8:05 PM CDT | Severe Thunderstorm Warning | JAN | Lincoln | 17 min |
| Mar 26, 8:09 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Jefferson | 25 min |
| Mar 26, 8:47 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 32 min |
| Mar 26, 8:54 PM CDT | Flash Flood Warning | JAN | Adams, Claiborne, Franklin, Jefferson | 3 hr |
| Mar 26, 9:32 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 13 min |
| Mar 26, 10:20 PM CDT | Flash Flood Warning | JAN | Simpson | 115 min |
| Mar 26, 10:25 PM CDT | Areal Flood Warning | JAN | Covington, Forrest, Jefferson Davis, Jones, Lamar, Lawrence and 1 more | 6 hr |
| Mar 27, 9:55 AM CDT | River Flood Warning | JAN | Jones | 5 days |
| Mar 27, 10:13 AM CDT | River Flood Warning | JAN | Simpson | 4 days |
| Mar 27, 3:03 PM CDT | River Flood Warning | JAN | Marion | 10 days |
| Mar 27, 6:01 PM CDT | Tornado Warning | JAN | Adams | 31 min |
| Mar 27, 6:08 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Jefferson | 67 min |
| Mar 27, 6:23 PM CDT | Tornado Warning | JAN | Adams, Jefferson | 52 min |
| Mar 27, 6:45 PM CDT | Tornado Warning | JAN | Franklin, Jefferson | 60 min |
| Mar 27, 5:08 PM CDT | Tornado Warning | JAN | Catahoula, Concordia | 67 min |
| Mar 27, 5:39 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia | 51 min |
Nearby
Flash Flood Watches in Mississippi, 2009Flash Flood Watches in Louisiana, 2009Flash Flood Watches in Arkansas, 2009Every flash flood watch 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.