Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 227, NWS Jackson, MS

May 29, 2010Holmes County, Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 29, 2010, 2:00 AM CDT for Holmes County, Yazoo County, Mississippi. It was in force for 45 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: May 29, 2010, 2:00 AM CDT (07:00 UTC)
Expired: May 29, 2010, 2:45 AM CDT
In force: 45 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Holmes County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 79 km from the middle of the area, began a volume at 07:03 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 00:00Z, 7.0 hours before the alert went out and 211 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: 1902 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 29 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

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 May 28, 9:34 PM CDT, 4 hours 26 minutes earlier.

Area forecast discussion, May 28, 9:34 PM CDT, 4 hours 26 minutes before

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Hazardous weather outlook, May 28, 3:56 PM CDT, 10 hours 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
356 PM CDT FRI MAY 28 2010

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
292100-
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-
356 PM CDT FRI MAY 28 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI...
NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS.

.DAY ONE...TONIGHT AND SATURDAY

ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS THE
ARKLAMISS AS WE GO INTO THE EARLY EVENING HOURS. THE PRIMARY WEATHER
RISKS WILL BE 50 TO 60 MPH WIND GUSTS AND DIME TO QUARTER SIZE HAIL.
STORMS WILL DIMINISH AFTER SUNSET.

FOR SATURDAY...ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP
AGAIN IN THE AFTERNOON AND LAST UNTIL EARLY EVENING. WIND GUSTS OF
50 TO 60 MPH AND DIME TO QUARTER SIZE HAIL THE PRIMARY RISKS.

.DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH THURSDAY

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 COULD BE NECESSARY LATE THIS AFTERNOON AND EVENING...AND
AGAIN SATURDAY AFTERNOON AND EVENING.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

EC

In the hours before

Special weather statement, May 28, 11:22 PM CDT, 2 hours 38 minutes before

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Special weather statement, May 28, 11:26 PM CDT, 2 hours 34 minutes before

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Special weather statement, May 29, 12:46 AM CDT, 1 hour 14 minutes before

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Local storm report, May 29, 1:27 AM CDT, 33 minutes before

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Local storm report, May 29, 1:37 AM CDT, 23 minutes before

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Special weather statement, May 29, 1:39 AM CDT, 21 minutes before

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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 7:26 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	49 min
May 28, 8:03 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	42 min
May 28, 8:08 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	52 min
May 28, 8:29 PM CDT	River Flood Warning	JAN	Issaquena, Washington	25 hr
May 28, 8:34 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	44 min
May 28, 8:54 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	21 min
May 29, 12:55 AM CDT	Severe Thunderstorm Warning	JAN	Leflore	50 min
May 29, 2:46 AM CDT	Severe Thunderstorm Warning	JAN	Yazoo	44 min
May 29, 1:33 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	42 min
May 29, 2:32 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	43 min
May 29, 3:18 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	42 min
May 29, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds	34 min
May 29, 12:53 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Tensas	37 min
May 29, 2:16 PM CDT	Flash Flood Warning	JAN	Franklin, Richland	76 min
May 29, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	17 min
May 29, 2:40 PM CDT	Flash Flood Warning	JAN	Franklin, Madison, Tensas	108 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2010 Every severe thunderstorm 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.