Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

July 18, 2012Rankin County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 18, 2012, 5:55 PM CDT for Rankin County, Mississippi. It was in force for 30 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, 2012, 5:55 PM CDT (22:55 UTC)
Expired
Jul 18, 2012, 6:25 PM CDT
In force
30 min
Issued by
NWS Jackson, MS

County Rankin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 11 km from the middle of the area, began a volume at 22:58 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, 10.9 hours before the alert went out and 20 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, Jackson, MS at 12:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2263 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, Jackson, MS at 12:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
2263 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
891 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
43 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 18, 5:40 PM CDT, 15 minutes earlier.

Area forecast discussion, Jul 18, 5:40 PM CDT, 15 minutes before
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Hazardous weather outlook, Jul 18, 1:11 PM CDT, 4 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
111 PM CDT WED JUL 18 2012

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
191815-
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-
111 PM CDT WED JUL 18 2012

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

.DAY ONE...TONIGHT AND THURSDAY

BRIEF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE THROUGH THIS
EVENING AND AGAIN THURSDAY AFTERNOON. WINDS GUSTS FROM 40 TO 60 MPH
AND HAIL UP TO THE SIZE OF QUARTERS WILL BE POSSIBLE IN THESE STORMS.
THE SLOW SOUTHWARD MOVEMENT WITH THE HEAVIER STORMS MAY ALSO PRODUCE
RAINFALL RATES OF 2 INCHES PER HOUR AND LOCALIZED FLOODING PROBLEMS.

THE STORMS WILL DIMINISH BY MIDNIGHT EACH DAY.

.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW...HOWEVER
ADDITIONAL ISOLATED STRONG STORMS WILL BE POSSIBLE AT LEAST FRIDAY
AND SATURDAY AFTERNOONS.

.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 TUESDAY.

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

40

In the hours before

Special weather statement, Jul 18, 4:58 PM CDT, 57 minutes before
MSZ056-182230-
SMITH MS-
458 PM CDT WED JUL 18 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
458 PM CDT WED JUL 18 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PENNY TO NICKEL SIZE HAIL
AND 40 TO 50 MPH WINDS WAS LOCATED 5 MILES SOUTHEAST OF RALEIGH AT
459 PM CDT...MOVING SOUTH AT 5 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

PEOPLE IN CENTRAL SMITH COUNTY SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3190 8932 3185 8951 3204 8958 3210 8938
TIME...MOT...LOC 2159Z 342DEG 7KT 3198 8945

BK
Special weather statement, Jul 18, 5:03 PM CDT, 52 minutes before
MSZ043-044-182235-
MADISON MS-LEAKE MS-
503 PM CDT WED JUL 18 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
503 PM CDT WED JUL 18 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PENNY TO NICKEL SIZE HAIL
AND 40 TO 50 MPH WINDS WAS LOCATED 12 MILES NORTHWEST OF TUSCOLA AT
503 PM CDT...MOVING SOUTHEAST AT 10 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

PEOPLE IN SOUTHWESTERN LEAKE AND EAST CENTRAL MADISON COUNTIES SHOULD
MONITOR THIS STORM CLOSELY.

LAT...LON 3257 8957 3258 8972 3263 8973 3261 8977
      3276 8983 3284 8964 3261 8948
TIME...MOT...LOC 2203Z 334DEG 7KT 3272 8969

BK
Local storm report, Jul 18, 5:35 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
535 PM CDT WED JUL 18 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0533 PM     FLASH FLOOD      HATTIESBURG             31.31N 89.31W
07/18/2012                   FORREST            MS   EMERGENCY MNGR

            FLOODING REPORTED ALONG BROADWAY DRIVE...AT US HIGHWAY 49
            AND W 4TH STREET...AND AT E PINE STREET AND EVANS DRIVE

&&

DL
Special weather statement, Jul 18, 5:39 PM CDT, 16 minutes before
MSZ036-182310-
HOLMES MS-
539 PM CDT WED JUL 18 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
539 PM CDT WED JUL 18 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING PENNY TO NICKEL SIZE HAIL
AND 40 TO 50 MPH WINDS WAS LOCATED 3 MILES NORTHWEST OF BROZVILLE AT
539 PM CDT...MOVING SOUTH AT 10 MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

PEOPLE IN CENTRAL HOLMES COUNTY SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3315 9002 3290 9001 3292 9009 3299 9026
      3316 9023
TIME...MOT...LOC 2239Z 003DEG 7KT 3307 9013

BK
Local storm report, Jul 18, 5:40 PM CDT, 15 minutes before
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Special weather statement, Jul 18, 5:55 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
Jul 17, 7:29 PM CDTSpecial Weather StatementJANClarke31 min
Jul 17, 8:56 PM CDTSpecial Weather StatementJANForrest44 min
Jul 17, 10:05 PM CDTSpecial Weather StatementJANClarke45 min
Jul 17, 10:34 PM CDTFlash Flood WarningJANClarke116 min
Jul 17, 11:09 PM CDTSpecial Weather StatementJANJasper46 min
Jul 18, 12:13 PM CDTSpecial Weather StatementJANClay, Kemper, Lowndes, Neshoba, Noxubee, Oktibbeha and 1 more72 min
Jul 18, 1:22 PM CDTSpecial Weather StatementJANClarke, Lauderdale58 min
Jul 18, 1:38 PM CDTSevere Thunderstorm WarningJANLauderdale52 min
Jul 18, 2:15 PM CDTSpecial Weather StatementJANNeshoba30 min
Jul 18, 2:22 PM CDTSpecial Weather StatementJANWinston33 min
Jul 18, 2:24 PM CDTSpecial Weather StatementJANClarke31 min
Jul 18, 2:28 PM CDTSpecial Weather StatementJANLowndes32 min
Jul 18, 2:30 PM CDTSpecial Weather StatementJANSmith30 min
Jul 18, 2:34 PM CDTSpecial Weather StatementJANLowndes31 min
Jul 18, 2:59 PM CDTSpecial Weather StatementJANWebster31 min
Jul 18, 3:04 PM CDTSpecial Weather StatementJANJasper31 min
Jul 18, 3:07 PM CDTSevere Thunderstorm WarningJANClarke, Jasper38 min
Jul 18, 3:26 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha, Webster35 min
Jul 18, 3:31 PM CDTSpecial Weather StatementJANWebster29 min
Jul 18, 3:44 PM CDTSpecial Weather StatementJANForrest31 min
Jul 18, 3:44 PM CDTSevere Thunderstorm WarningJANMontgomery, Webster21 min
Jul 18, 4:15 PM CDTSpecial Weather StatementJANCovington30 min
Jul 18, 4:30 PM CDTSpecial Weather StatementJANLeake30 min
Jul 18, 4:42 PM CDTSpecial Weather StatementJANForrest28 min
Jul 18, 4:54 PM CDTSpecial Weather StatementJANAttala31 min
Jul 18, 4:55 PM CDTFlash Flood WarningJANForrest2 hr
Jul 18, 4:58 PM CDTSpecial Weather StatementJANSmith32 min
Jul 18, 5:03 PM CDTSpecial Weather StatementJANLeake32 min
Jul 18, 5:39 PM CDTSpecial Weather StatementJANHolmes31 min
Jul 18, 5:43 PM CDTFlash Flood WarningJANLamar88 min
Jul 18, 6:24 PM CDTSpecial Weather StatementJANHinds41 min
Jul 18, 6:26 PM CDTSpecial Weather StatementJANMadison29 min
Jul 18, 6:47 PM CDTSpecial Weather StatementJANRankin28 min
Jul 18, 6:53 PM CDTFlash Flood WarningJANHinds, Madison, Rankin93 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.