Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

May 12, 2012Newton County, Mississippi

NWS Jackson, MS issued this special weather statement at May 12, 2012, 3:20 PM CDT for Newton County, Mississippi. It was in force for 60 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
May 12, 2012, 3:20 PM CDT (20:20 UTC)
Expired
May 12, 2012, 4:20 PM CDT
In force
60 min
Issued by
NWS Jackson, MS

County Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 75 km from the middle of the area, began a volume at 20:24 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.3 hours before the alert went out and 231 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2012-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1685 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2012-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1685 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
500 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.7

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 May 12, 3:00 PM CDT, 20 minutes earlier.

Area forecast discussion, May 12, 3:00 PM CDT, 20 minutes before
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Hazardous weather outlook, May 12, 2:49 PM CDT, 31 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
249 PM CDT SAT MAY 12 2012

LAZ026-MSZ043>046-048>066-072>074-132000-
CONCORDIA-MADISON MS-LEAKE-NESHOBA-KEMPER-HINDS-RANKIN-SCOTT-
NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-CLARKE-
JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-
COVINGTON-JONES-MARION-LAMAR-FORREST-
249 PM CDT SAT MAY 12 2012

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

.DAY ONE...TONIGHT AND SUNDAY

STORMS WILL OCCUR ACROSS THE AREA THIS AFTERNOON INTO THIS EVENING AND
PRODUCE LOCALLY HEAVY RAINFALL. DUE TO SEVERAL ROUNDS OF STORM
ACTIVITY...1 TO 3 INCHES OF RAIN WILL BE POSSIBLE ALONG WITH LOCALLY
HIGHER AMOUNTS. MOST OF THE HEAVY RAIN WILL OCCUR BETWEEN 3 PM AND MIDNIGHT
TONIGHT.

IN ADDITION TO HEAVY RAINFALL...SOME STRONG STORMS WILL BE POSSIBLE
FROM MID AFTERNOON UNTIL 9 PM. THE MAIN RISK FROM THE STRONGEST STORMS
WILL BE GUSTY WINDS OF 50-60 MPH. ALSO THERE WILL ALSO BE A POSSIBLE
BRIEF TORNADO OR TWO.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH 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 IS NOT EXPECTED THROUGH NEXT FRIDAY.

MSZ026>033-036>039-042-047-132000-
GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-
HOLMES-ATTALA-WINSTON-NOXUBEE-YAZOO-WARREN-
249 PM CDT SAT MAY 12 2012

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

.DAY ONE...TONIGHT AND SUNDAY

STORMS WILL OCCUR ACROSS THE AREA THIS AFTERNOON INTO THIS EVENING AND
PRODUCE LOCALLY HEAVY RAINFALL. DUE TO SEVERAL ROUNDS OF STORM
ACTIVITY...1 TO 3 INCHES OF RAIN WILL BE POSSIBLE ALONG WITH LOCALLY
HIGHER AMOUNTS. MOST OF THE HEAVY RAIN WILL OCCUR BETWEEN 3 PM AND MIDNIGHT
TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH 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 IS NOT EXPECTED THROUGH NEXT FRIDAY.

ARZ074-075-LAZ007>009-015-016-023>025-MSZ018-019-025-034-035-040-
041-132000-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-BOLIVAR-SUNFLOWER-LEFLORE-
WASHINGTON-HUMPHREYS-ISSAQUENA-SHARKEY-
249 PM CDT SAT MAY 12 2012

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

.DAY ONE...TONIGHT AND SUNDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH 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 IS NOT EXPECTED THROUGH NEXT FRIDAY.

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

17

In the hours before

Local storm report, May 12, 2:04 PM CDT, 1 hour 16 minutes before
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Local storm report, May 12, 2:25 PM CDT, 55 minutes before
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Local storm report, May 12, 2:36 PM CDT, 44 minutes before
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Special weather statement, May 12, 2:43 PM CDT, 37 minutes before
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Special weather statement, May 12, 3:15 PM CDT, 5 minutes before
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Special weather statement, May 12, 3:20 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 8:35 AM CDTSpecial Weather StatementJANClaiborne, Copiah, Franklin, Hinds, Lawrence, Lincoln and 1 more25 min
May 12, 10:01 AM CDTSpecial Weather StatementJANAttala, Copiah, Hinds, Holmes, Leake, Madison and 2 more54 min
May 12, 10:29 AM CDTSpecial Weather StatementJANHinds, Madison56 min
May 12, 10:41 AM CDTFlash Flood WarningJANMadison2 hr
May 12, 11:09 AM CDTSpecial Weather StatementJANAttala, Carroll, Choctaw, Grenada, Leake, Montgomery56 min
May 12, 11:25 AM CDTSevere Thunderstorm WarningJANForrest50 min
May 12, 12:10 PM CDTSpecial Weather StatementJANJones30 min
May 12, 1:06 PM CDTSpecial Weather StatementJANLowndes, Neshoba, Newton, Noxubee, Oktibbeha, Scott and 1 more84 min
May 12, 1:32 PM CDTSpecial Weather StatementJANJefferson Davis28 min
May 12, 1:44 PM CDTSpecial Weather StatementJANJasper56 min
May 12, 1:49 PM CDTSpecial Weather StatementJANLamar61 min
May 12, 1:56 PM CDTSevere Thunderstorm WarningJANSimpson, Smith49 min
May 12, 2:10 PM CDTTornado WarningJANSimpson, Smith30 min
May 12, 2:18 PM CDTSevere Thunderstorm WarningJANKemper, Neshoba37 min
May 12, 2:43 PM CDTSpecial Weather StatementJANNewton47 min
May 12, 3:15 PM CDTSpecial Weather StatementJANSimpson60 min
May 12, 3:29 PM CDTSevere Thunderstorm WarningJANCopiah, Simpson61 min
May 12, 3:51 PM CDTSpecial Weather StatementJANCopiah, Simpson59 min
May 12, 3:56 PM CDTTornado WarningJANSimpson51 min
May 12, 4:11 PM CDTSpecial Weather StatementJANLauderdale59 min
May 12, 4:39 PM CDTFlash Flood WarningJANJasper, Newton, Scott, Smith3 hr
May 12, 4:49 PM CDTSpecial Weather StatementJANSimpson61 min
May 12, 5:15 PM CDTSpecial Weather StatementJANKemper60 min

Nearby

Special Weather Statements in Mississippi, 2012Every 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.