Alert archive / Mississippi / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 435, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 16, 2009, 11:17 AM CDT for Oktibbeha County, Mississippi. It was in force for 31 min. 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, 2009, 11:17 AM CDT (16:17 UTC)
- Expired
- Jul 16, 2009, 11:48 AM CDT
- In force
- 31 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
County Oktibbeha County, MS
The radar
The Columbus AFB radar (KGWX), 73 km from the middle of the area, began a volume at 16:18 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, 4.3 hours before the alert went out and 185 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
- 2319 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 995 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 16, 9:14 AM CDT, 2 hours 3 minutes earlier.
Area forecast discussion, Jul 16, 9:14 AM CDT, 2 hours 3 minutes before
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</html>Hazardous weather outlook, Jul 16, 5:17 AM CDT, 6 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 517 AM CDT THU JUL 16 2009 ARZ074-075-LAZ007>009-015-016-023>025-MSZ018-019-025>053-171030- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-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- 517 AM CDT THU JUL 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MOST OF CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TODAY AND TONIGHT HOT AND HUMID CONDITIONS WILL AGAIN OCCUR ACROSS THE REGION THIS AFTERNOON. THE HOTTEST READINGS...ALONG WITH HEAT INDICES THAT WILL RANGE FROM 104 TO 107 DEGREES...WILL OCCUR MAINLY ACROSS AREAS NORTHWEST OF THE NATCHEZ TRACE. A HEAT ADVISORY IS EFFECT FOR THIS AREA UNTIL THIS AFTERNOON. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING FOR AREAS ALONG AND NORTH OF I-20. DAMAGING WINDS TO 60 OR 70 MPH ALONG WITH PENNY SIZED HAIL WILL BE THE MAIN RISK AS STORMS MOVE TOWARD THE EAST OR SOUTHEAST. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE. THE PRIMARY TIME FOR THIS ACTIVITY WILL BE BETWEEN 3 AND 8 PM WITH THE MAIN AXIS OF STRONGEST STORMS FROM GREENVILLE TO MERIDIAN AND POINTS NORTH. ADDITIONAL STRONG STORMS MAY DEVELOP TOWARD FRIDAY MORNING AND PRODUCE ADDITIONAL HEAVY RAIN ACROSS THE HIGHWAY 82 CORRIDOR. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED SEVERE STORMS CAPABLE OF PRODUCING STRONG DAMAGING WINDS...PENNY SIZE HAIL...AND LOCALLY HEAVY RAINFALL WILL AGAIN BE POSSIBLE FRIDAY OVER AREAS PARTICULARLY ALONG AND SOUTH OF THE INTERSTATE 20 CORRIDOR. BEYOND FRIDAY...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .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 TODAY AND POSSIBLY AGAIN FRIDAY. OTHERWISE...ACTIVATION IS NOT EXPECTED THROUGH NEXT WEDNESDAY. LAZ026-MSZ054>066-072>074-171030- CONCORDIA-COPIAH-SIMPSON-SMITH-JASPER-CLARKE-JEFFERSON-ADAMS- FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES- MARION-LAMAR-FORREST- 517 AM CDT THU JUL 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN MISSISSIPPI. .DAY ONE...TODAY AND TONIGHT ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON FOR AREAS SOUTH OF I-20. WIND GUSTS BETWEEN 40 AND 50 MPH WILL POSSIBLE IN THE STRONGER STORMS. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE AS STORMS MOVE SLOWLY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED SEVERE STORMS CAPABLE OF PRODUCING STRONG DAMAGING WINDS...PENNY SIZE HAIL...AND LOCALLY HEAVY RAINFALL WILL AGAIN BE POSSIBLE FRIDAY OVER AREAS PARTICULARLY ALONG AND SOUTH OF THE INTERSTATE 20 CORRIDOR. BEYOND FRIDAY...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .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 NEED FRIDAY. OTHERWISE...ACTIVATION IS NOT EXPECTED THROUGH NEXT WEDNESDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. CME
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 3:31 AM CDT | Heat Advisory | JAN | Bolivar, Carroll, Grenada, Holmes, Humphreys, Issaquena and 7 more | 12 hr |
| Jul 16, 2:26 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 35 min |
| Jul 16, 3:15 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Jasper, Lauderdale, Newton | 33 min |
| Jul 16, 3:24 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 51 min |
| Jul 16, 4:58 PM CDT | Severe Thunderstorm Warning | JAN | Simpson, Smith | 32 min |
| Jul 16, 5:06 PM CDT | Severe Thunderstorm Warning | JAN | Rankin | 19 min |
| Jul 16, 5:45 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lawrence, Simpson | 30 min |
| Jul 16, 5:57 PM CDT | Severe Thunderstorm Warning | JAN | Rankin | 33 min |
| Jul 16, 6:36 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 39 min |
| Jul 16, 6:41 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 34 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2009Every severe thunderstorm 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.