Alert archive / Mississippi / Special Weather Statements in 2013

Special Weather Statement, NWS Jackson, MS

July 18, 2013Webster County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 18, 2013, 10:18 AM CDT for Webster County, Mississippi. It was in force for 47 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 18, 2013, 10:18 AM CDT (15:18 UTC)
Expired
Jul 18, 2013, 11:05 AM CDT
In force
47 min
Issued by
NWS Jackson, MS

County Webster County, MS

The radar

The Columbus AFB radar (KGWX), 96 km from the middle of the area, began a volume at 15:21 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, 3.3 hours before the alert went out and 134 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, Little Rock, AR at 12:00Z on 2013-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1817 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, Little Rock, AR at 12:00Z on 2013-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 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
1817 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
1227 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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 18, 8:27 AM CDT, 1 hour 51 minutes earlier.

Area forecast discussion, Jul 18, 8:27 AM CDT, 1 hour 51 minutes before
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Hazardous weather outlook, Jul 18, 4:20 AM CDT, 5 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
420 AM CDT THU JUL 18 2013

MSZ029>033-038-039-045-046-051-052-057-058-066-190930-
WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-WINSTON-NOXUBEE-NESHOBA-
KEMPER-NEWTON-LAUDERDALE-JASPER-CLARKE-JONES-
420 AM CDT THU JUL 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN MISSISSIPPI.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE TODAY...PRIMARILY THIS
MORNING. THE MOST INTENSE STORMS COULD CONTAIN WIND GUSTS OF 50 TO
60 MPH AS WELL AS SMALL HAIL. MANY STORMS WILL BE CAPABLE OF
PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND HEAVY
DOWNPOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED STRONG TO A FEW SEVERE THUNDERSTORMS ARE POSSIBLE FRIDAY.
THE MORE INTENSE STORMS SHOULD CONTAIN WIND GUSTS FROM 50 TO 60
MPH...AS WELL AS THE POTENTIAL FOR SOME HAIL. MANY STORMS WILL BE
CAPABLE OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND
HEAVY DOWNPOURS ONCE AGAIN.

.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 ON FRIDAY.

MSZ026>028-036-037-042>044-047>050-053>056-059>065-072>074-190930-
GRENADA-CARROLL-MONTGOMERY-HOLMES-ATTALA-YAZOO-MADISON MS-LEAKE-
WARREN-HINDS-RANKIN-SCOTT-CLAIBORNE-COPIAH-SIMPSON-SMITH-
JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-
COVINGTON-MARION-LAMAR-FORREST-
420 AM CDT THU JUL 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MISSISSIPPI...INCLUDING THE INTERSTATE 55 CORRIDOR.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE FROM MID MORNING THROUGH
EARLY AFTERNOON. THE MOST INTENSE STORMS COULD CONTAIN WIND GUSTS UP
TO 60 MPH AS WELL AS HAIL UP TO THE SIZE OF QUARTERS. MANY STORMS
WILL BE CAPABLE OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING
STRIKES AND HEAVY DOWNPOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED STRONG TO A FEW SEVERE THUNDERSTORMS ARE POSSIBLE FRIDAY.
THE MORE INTENSE STORMS COULD CONTAIN WIND GUSTS OF 50 TO 60 MPH AS
WELL AS THE POTENTIAL FOR SOME HAIL. MANY STORMS WILL BE CAPABLE OF
PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND HEAVY
DOWNPOURS ONCE AGAIN.

.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 AGAIN ON FRIDAY.

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025-034-035-040-
041-190930-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-
SUNFLOWER-LEFLORE-WASHINGTON-HUMPHREYS-ISSAQUENA-SHARKEY-
420 AM CDT THU JUL 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEASTERN LOUISIANA AND MUCH
OF THE ARKLAMISS DELTA.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE FROM MIDDAY THROUGH THE
AFTERNOON. THE MOST INTENSE STORMS COULD CONTAIN WIND GUSTS UP TO 60
MPH AS WELL AS HAIL UP TO THE SIZE OF QUARTERS. MANY STORMS WILL BE
CAPABLE OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND
HEAVY DOWNPOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED STRONG TO A FEW SEVERE THUNDERSTORMS ARE POSSIBLE FRIDAY.
THE MORE INTENSE STORMS COULD CONTAIN WIND GUSTS OF 50 TO 60 MPH AS
WELL AS THE POTENTIAL FOR SOME HAIL. MANY STORMS WILL BE CAPABLE OF
PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND HEAVY
DOWNPOURS ONCE AGAIN.

.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 LATER TODAY AND AGAIN ON FRIDAY.

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

50

In the hours before

Special weather statement, Jul 18, 7:38 AM CDT, 2 hours 40 minutes before
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Local storm report, Jul 18, 8:40 AM CDT, 1 hour 38 minutes before
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Local storm report, Jul 18, 8:46 AM CDT, 1 hour 32 minutes before
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Local storm report, Jul 18, 8:54 AM CDT, 1 hour 24 minutes before
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Local storm report, Jul 18, 8:59 AM CDT, 1 hour 19 minutes before
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Special weather statement, Jul 18, 10:18 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 7:05 PM CDTSevere Thunderstorm WarningJANClaiborne, Warren40 min
Jul 18, 12:45 AM CDTSpecial Weather StatementJANLowndes60 min
Jul 18, 1:44 AM CDTSpecial Weather StatementJANClay, Lowndes, Noxubee, Oktibbeha61 min
Jul 18, 2:49 AM CDTSpecial Weather StatementJANWebster61 min
Jul 18, 3:30 AM CDTSpecial Weather StatementJANNoxubee60 min
Jul 18, 3:32 AM CDTSpecial Weather StatementJANLauderdale58 min
Jul 18, 4:35 AM CDTSpecial Weather StatementJANKemper, Lauderdale30 min
Jul 18, 5:10 AM CDTSpecial Weather StatementJANClarke, Jasper45 min
Jul 18, 5:11 AM CDTSpecial Weather StatementJANNewton29 min
Jul 18, 5:54 AM CDTSpecial Weather StatementJANJasper, Smith31 min
Jul 18, 6:20 AM CDTSpecial Weather StatementJANSmith30 min
Jul 18, 6:48 AM CDTFlash Flood WarningJANClarke, Jasper117 min
Jul 18, 6:58 AM CDTSpecial Weather StatementJANCovington27 min
Jul 18, 7:02 AM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar28 min
Jul 18, 7:38 AM CDTSpecial Weather StatementJANMarion32 min
Jul 18, 12:32 PM CDTSpecial Weather StatementJANBolivar28 min
Jul 18, 12:36 PM CDTSpecial Weather StatementJANHolmes29 min
Jul 18, 12:51 PM CDTSpecial Weather StatementJANYazoo44 min
Jul 18, 1:06 PM CDTSpecial Weather StatementJANBolivar29 min
Jul 18, 1:16 PM CDTSevere Thunderstorm WarningJANBolivar44 min
Jul 18, 1:57 PM CDTSpecial Weather StatementJANHumphreys28 min
Jul 18, 2:35 PM CDTSpecial Weather StatementJANHumphreys, Issaquena, Sharkey, Washington60 min
Jul 18, 2:39 PM CDTSevere Thunderstorm WarningJANYazoo51 min
Jul 18, 2:54 PM CDTSpecial Weather StatementJANMadison31 min
Jul 18, 3:13 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Yazoo47 min
Jul 18, 3:24 PM CDTFlash Flood WarningJANSunflower2 hr
Jul 18, 3:46 PM CDTSpecial Weather StatementJANRankin39 min
Jul 18, 3:58 PM CDTSpecial Weather StatementJANHinds, Warren47 min
Jul 18, 4:42 PM CDTSpecial Weather StatementJANWarren58 min
Jul 17, 7:03 PM CDTSpecial Weather StatementJANTensas32 min
Jul 18, 3:27 PM CDTSpecial Weather StatementJANWest Feliciana28 min
Jul 18, 3:34 PM CDTSpecial Weather StatementJANWest Carroll31 min
Jul 18, 4:28 PM CDTSpecial Weather StatementJANEast Carroll, Madison, Morehouse, West Carroll62 min
Jul 18, 5:14 PM CDTSpecial Weather StatementJANFranklin, Madison, Richland61 min
Jul 18, 6:11 PM CDTSpecial Weather StatementJANFranklin39 min
Jul 18, 3:05 PM CDTSevere Thunderstorm WarningJANChicot40 min
Jul 18, 3:20 PM CDTFlash Flood WarningJANChicot115 min
Jul 18, 5:23 PM CDTAreal Flood WarningJANChicot3 hr

Nearby

Special Weather Statements in Mississippi, 2013Every special weather statement in 2013

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.