Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

July 12, 2012Clarke County, Lauderdale County, Newton County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 12, 2012, 4:57 PM CDT for Clarke County, Lauderdale County, Newton County, Mississippi. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 12, 2012, 4:57 PM CDT (21:57 UTC)
Expired: Jul 12, 2012, 5:55 PM CDT
In force: 58 min
Issued by: NWS Jackson, MS

Counties Clarke County, MS, Lauderdale County, MS, Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 119 km from the middle of the area, began a volume at 21:57 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 12:00Z, 10.0 hours before the alert went out and 129 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: 174 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -44 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 12, 3:50 PM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jul 12, 3:50 PM CDT, 1 hour 7 minutes before

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Hazardous weather outlook, Jul 12, 2:27 PM CDT, 2 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
227 PM CDT THU JUL 12 2012

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>038-040>044-
047>049-053-054-059>062-131930-
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-
ISSAQUENA-SHARKEY-YAZOO-MADISON MS-LEAKE-WARREN-HINDS-RANKIN-
CLAIBORNE-COPIAH-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-
227 PM CDT THU JUL 12 2012

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

.DAY ONE...TONIGHT AND FRIDAY

SCATTERED THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINS CAN BE
EXPECTED EARLY TONIGHT AND AGAIN FRIDAY AFTERNOON. LOCALIZED
FLOODING WILL BE POSSIBLE IN THE HEAVIER STORMS AND IN AREAS WHERE
MULTIPLE STORMS TRACK ACROSS THE SAME AREA. RAINFALL AMOUNTS FROM ONE
TO TWO INCHES WILL BE LIKELY WITH HIGHER TOTALS POSSIBLE. THE
STRONGEST STORMS WILL ALSO PRODUCE GUSTY WINDS OF 30 TO 40 MPH.

.DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY

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...IS NOT EXPECTED THROUGH NEXT WEDNESDAY.

MSZ039-045-046-050>052-055>058-063>066-072>074-131930-
NOXUBEE-NESHOBA-KEMPER-SCOTT-NEWTON-LAUDERDALE-SIMPSON-SMITH-
JASPER-CLARKE-LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-
LAMAR-FORREST-
227 PM CDT THU JUL 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST AND SOUTHEAST MISSISSIPPI.

.DAY ONE...TONIGHT AND FRIDAY

SCATTERED THUNDERSTORMS WITH LOCALLY HEAVY RAINS OF ONE TO TWO INCHES
IN LESS THAN 1 HOUR WILL BE POSSIBLE EARLY TONIGHT. THIS COULD
PRODUCE LOCALIZED PONDING OF WATER ON ROADS AND MINOR STREET FLOODING
IN URBAN AND POOR DRAINAGE AREAS. THE STRONGER STORMS WILL ALSO HAVE
THE POTENTIAL FOR WIND GUSTS OF 35 TO 45 MPH.

.DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY

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...IS NOT EXPECTED THROUGH NEXT WEDNESDAY.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN.

40

In the hours before

Special weather statement, Jul 12, 3:47 PM CDT, 1 hour 10 minutes before

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Special weather statement, Jul 12, 4:03 PM CDT, 54 minutes before

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Special weather statement, Jul 12, 4:31 PM CDT, 26 minutes before

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Local storm report, Jul 12, 4:38 PM CDT, 19 minutes before

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Local storm report, Jul 12, 4:40 PM CDT, 17 minutes before

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Special weather statement, Jul 12, 4:57 PM CDT, 0 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
Jul 12, 2:12 PM CDT	Special Weather Statement	JAN	Jefferson Davis	43 min
Jul 12, 2:48 PM CDT	Special Weather Statement	JAN	Adams, Copiah, Franklin, Jefferson, Lawrence, Lincoln and 1 more	57 min
Jul 12, 3:29 PM CDT	Special Weather Statement	JAN	Smith	46 min
Jul 12, 3:40 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	65 min
Jul 12, 3:47 PM CDT	Special Weather Statement	JAN	Copiah	28 min
Jul 12, 4:03 PM CDT	Special Weather Statement	JAN	Clarke, Jasper, Smith	62 min
Jul 12, 4:31 PM CDT	Special Weather Statement	JAN	Scott	44 min

Nearby

Special Weather Statements in Mississippi, 2012 Every special weather statement in 2012

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.