Severe Thunderstorm Warning 384, NWS Jackson, MS

000 
WWUS54 KJAN 102300
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
558 PM CDT FRI AUG 10 2007

MSC023-102315-
/O.CON.KJAN.SV.W.0384.000000T0000Z-070810T2315Z/
CLARKE MS-
558 PM CDT FRI AUG 10 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR CLARKE COUNTY...

AT 558 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND 
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR 
GOODWATER...MOVING SOUTH AT 20 MPH. A SECOND SEVERE STORM WAS 
LOCATED 5 MILES NORTHEAST OF SHUBUTA....MOVING SOUTH AT 20 MPH. 

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.

LAT...LON 3183 8890 3190 8890 3192 8890 3203 8890
      3203 8847 3189 8848 3185 8867

$$

OLB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
412 PM CDT FRI AUG 10 2007

.SHORT TERM...TONIGHT THROUGH SUNDAY.
HOT AND DRY FOR MOST OF THE CWA. THOUGHT DRY AIR WILL BE STRONG
ENOUGH TO LIMIT ANY THUNDERSTORM DEVELOPMENT TODAY...BUT A FEW
SHOWERS AND THUNDERSTORMS HAVE DEVELOPED OVER THE EASTERN PORTIONS OF
THE CWA...LIKELY ALONG THE SLOW MOVING BOUNDARY. MOISTURE VALUES WERE
A SLIGHTLY HIGHER TO THE EAST. ADDED ISOLATED THUNDERSTORMS TO THE
GRIDS...BUT WILL NOT ADD PRE-FIRST PERIOD TO THE FORECAST AT THIS
POINT. MAY HAVE TO ADD ISOLATED WORDING FOR AREAS ALONG AND SOUTH OF
20...WITH ANOTHER SHOWER POPPING UP OVER NORTHEAST LOUISIANA.
DOWNBURST POTENTIAL WAS THERE WITH THE AREA BEING SO HOT...NMM HAD
PEAK GUST OF 40KTS...WILL CONTINUE TO WATCH STORMS. WITH ACTIVITY SO
ISOLATED IN NATURE WILL LEAVE OUT OF THE HWO FOR NOW. LOOKING AT
UPSTREAM VALUES SHOULD SEE A SIGNIFICANT DROP IN THE DEWPOINTS
THROUGH THE EVENING. TEMPERATURES LAST NIGHT WERE STILL WARM...BUT
LOOKING FOR COOLER TEMPS TONIGHT AND LOWER RH VALUES TOMORROW...SO
WILL NOT EXTEND THE HEAT ADVISORY THROUGH SATURDAY. CONDITIONS WILL
BE MARGINAL FOR AREAS OF SOUTH OF INTERSTATE 20...NOT SURE AT THIS
POINT HOW FAR SOUTH THE DRY AIR WILL SPREAD. THE BOUNDARY HAS NOT
PROGRESSED MUCH THIS AFTERNOON AND THE DRY AIR WAS FINALLY MOVING
INTO THE HIGHWAY 82 CORRIDOR...MEANWHILE THE TEMPERATURES CONTINUE TO
RISE INTO THE LOWER 100S. THE AREA WAS SEEING RECORD BREAKING
VALUES...WITH RECORDS TIED AT JACKSON AND MERIDIAN AND BROKEN AT
VICKSBURG AND GREENWOOD. AS FAR AS TEMPS GO...RAISED TEMPS A DEGREE
OR TWO TONIGHT...MAINLY ACROSS THE SOUTH. DO NOT THINK ENTIRE AREA
WILL COOL ENOUGH TO GET TO 70 ACROSS THE SOUTH. DID NOT STRAY FROM
THE GFS ON THE HIGHS...LOWER 100S SEEMED OK FOR SATURDAY AND SUNDAY.
THINKING DRY AIR WILL AT LEAST MAKE IT TO I-20 BY TOMORROW AFTERNOON
AND MAINTAIN THROUGH THE WEEKEND. THE UPPER RIDGE SHIFTS WEST
SLIGHTLY...BUT SEEMS TO MAINTAIN A STRONG HOLD ON THE AREA...SO HOT
AND DRY CONDITIONS WILL PREVAIL THROUGH THE PERIOD.

.LONG TERM...SUNDAY NIGHT THROUGH FRIDAY.
THE HEAT WAVE WILL CONTINUE WELL INTO NEXT WEEK AS THE
STOUT UPPER RIDGE WILL DOMINATE THE CENTRAL AND SOUTHERN PORTIONS OF
THE US AND HELP TO KEEP VERY WARM LOW LEVEL TEMPS IN PLACE. PREV
LONG TERM FORECAST LOOKS GOOD AS LATEST OPERATIONAL GUID/ENSEMBLE
GUID ARE VERY SIMILAR TO PREV RUNS AND CONSISTENT AMONG EACH OTHER.
LATEST GUID CONTINUES TO SHOW LARGE POSITIVE ANOMALIES WITH THE
UPPER RIDGE FOR THIS WEEKEND INTO EARLY NEXT WEEK WITH 2-3 STANDARD
DEVIATIONS ABOVE CLIMO. H85 TEMPS ARE EVEN HIGHER WITH LARGE AREAS
3-5 STANDARD DEVIATIONS ABOVE CLIMO. THIS STRONGLY SUPPORTS TRIPLE
DIGITS WITH SEVERAL RECORDS LIKELY BEING SET BEFORE ITS ALL OVER.
SPEAKING OF RECORDS...ALL TIME HIGH TEMP RECORDS RANGE FROM 105-107
AT MOST SITES ACROSS THE CWA. BASED ON THE EXTREME H85 TEMP
ANOMALIES FORECAST...WE MAY THREATEN SOME ALL TIME RECORDS NEXT WEEK.

DECIDING ON ANY HEAT RELATED PRODUCTS DURING THAT TIME MAY BE MORE
DIFFICULT. THIS IS BASED THE SOMEWHAT COOLER OVERNIGHT LOWS AND RH
VALUES OF 30-35%. THIS WOULD ONLY RESULT IN HEAT INDICES A FEW
DEGREES WARMER THAN THE AIR TEMP. HOWEVER...WITH THE AIR TEMPS IN
THE EXTREME CATEGORY AND STEADILY WARMING OVERNIGHT LOWS...THE
MIDDLE TO LATER PART OF NEXT WEEK MAY BE PRIME AGAIN FOR HEAT
RELATED ADVISORIES.

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       67 102  70 102 /   0   0   0   0
MERIDIAN      68 102  71 101 /   1   0   0   0
VICKSBURG     67 102  69 102 /   0   0   0   0
HATTIESBURG   71 102  73 101 /   5   0   0   0
NATCHEZ       68  99  71  99 /   4   0   0   0
GREENVILLE    66 103  68 102 /   0   0   0   0
GREENWOOD     66 100  69 102 /   0   0   0   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR MSZ018-019-025>066-
     072>074.

LA...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR LAZ007>009-015-016-
     023>026.

AR...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR ARZ074-075.

&&

07/36

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
413 PM CDT FRI AUG 10 2007

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
112115-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON-FRANKLIN-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-SUNFLOWER-
LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-
OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-
ISSAQUENA-SHARKEY-YAZOO-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN-
SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-
CLARKE-JEFFERSON-ADAMS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-
JONES-MARION-LAMAR-FORREST-
413 PM CDT FRI AUG 10 2007

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

.DAY ONE...TONIGHT AND SATURDAY
ISOLATED STRONG STORMS WILL BE POSSIBLE FOR AREAS ALONG AND SOUTH OF
INTERSTATE 20 THROUGH THE EVENING. A WEAK BOUNDARY WAS MOVING
THROUGH THE AREA GENERATING A FEW THUNDERSTORMS. WITH THE AREA BEING
SO HOT AND PLENTY OF DRY AIR FLOWING INTO THE AREA...THERE IS THE
POTENTIAL FOR DOWNBURSTS WITH ANY STORM THAT DEVELOPS. DAMAGING WIND
GUSTS TO 50 MPH WILL BE THE PRIMARY CONCERN WITH ANY STRONG
THUNDERSTORM. FREQUENT DANGEROUS LIGHTNING WILL ALSO BE LIKELY. A FEW
STORMS MAY BRIEFLY REACH SEVERE LIMITS.

CONDITIONS WILL REMAIN HOT AND HUMID ACROSS THE REGION THROUGH THE
EVENING. TEMPERATURES AROUND THE AREA HAVE ALREADY REACHED 100
DEGREES...PUSHING HEAT INDEX VALUES UP TO 110 DEGREES OR SLIGHTLY
ABOVE IN MANY LOCATIONS. WITH TEMPERATURES REMAINING IN THE UPPER 90S
THROUGH AT 6 PM...CONDITIONS WILL REMAIN FAVORABLE FOR HEAT STRESS THROUGH
THE EARLY EVENING.

DRY AIR WILL CONTINUE TO SINK SOUTH INTO THE AREA THIS EVENING...HELPING
TO LOWER HUMIDITY VALUES. HOWEVER...AFTERNOON TEMPERATURES WILL
LIKELY BE A FEW DEGREES WARMER...WITH MOST LOCATIONS AT OR ABOVE 100
DEGREES SATURDAY. FOR LOCATIONS NORTH OF INTERSTATE 20 HEAT INDEX
VALUES WILL LIKELY REMAIN BELOW 105 DEGREES. IN AREAS SOUTH OF
INTERSTATE 20 HOT TEMPERATURES AND SLIGHTLY HIGHER HUMIDITY VALUES
MAY BRING HEAT INDEX VALUES NEAR 105...BUT HEAT ADVISORY CONDITIONS
WERE NOT EXPECTED TO BE MET. PERSONS VENTURING OUTDOORS SHOULD
CONTINUE TO MONITOR CONDITIONS TO AVOID HEAT RELATED ILLNESS.

.DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH THURSDAY
DRIER AIR WILL LEAD TO LOWER HUMIDITY AND COOLER MORNING LOWS SUNDAY.
HOWEVER...THE AIR TEMPERATURE WILL REMAIN HOT...LIKELY HOTTER THAN
THE PAST WEEK. HEAT INDICES WILL INCREASE AGAIN TO ABOVE 105 AS WE GO
INTO THE MIDDLE OF NEXT WEEK. PERSONS SHOULD KEEP THIS IN MIND WHEN
PLANNING OUTDOOR ACTIVITIES NEXT WEEK.

.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 ANTICIPATED THROUGH THURSDAY.

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

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
322 PM CDT FRI AUG 10 2007

MSZ051-102105-
NEWTON MS-
322 PM CDT FRI AUG 10 2007

...STRONG THUNDERSTORM LOCATED OVER NORTH CENTRAL NEWTON COUNTY...

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED OVER STRATTON AT 322 PM CDT...AND WAS 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 NEWTON COUNTY...INCLUDING THE CITIES OF NEWTON AND
PROSPECT...SHOULD MONITOR THIS STORM CLOSELY.

19

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
324 PM CDT FRI AUG 10 2007

MSZ049-102110-
RANKIN MS-
324 PM CDT FRI AUG 10 2007

...STRONG THUNDESTORM OVER EASTERN RANKIN COUNTY...

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED 4 MILES SOUTHEAST OF PELAHATCHIE AT 324 PM CDT...MOVING
SOUTHWEST AT 10 MPH.

VERY HEAVY RAIN ALONG WITH FREQUENT 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 RANKIN COUNTY SHOULD MONITOR THIS STORM CLOSELY.

19

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
356 PM CDT FRI AUG 10 2007

LAZ016-025-102140-
TENSAS LA-MADISON LA-
356 PM CDT FRI AUG 10 2007

...STRONG THUNDERSTORM MOVING OVER SOUTHERN MADISON PARISH AND INTO
NORTHERN TENSAS PARISH...

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED 5 MILES NORTHWEST OF AFTON AT 356 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 MADISON AND TENSAS PARISHES SHOULD MONITOR THIS STORM
CLOSELY.

19

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
507 PM CDT FRI AUG 10 2007

MSZ049-055-102305-
RANKIN MS-SIMPSON MS-
507 PM CDT FRI AUG 10 2007

...STRONG THUNDERSTORMS IN SOUTHERN RANKIN AND SIMPSON COUNTIES...

STRONG THUNDERSTORMS CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WERE
LOCATED FROM NEAR PINEY WOODS TO JUST WEST OF DLO AT 507 PM
CDT...MOVING SOUTH AT 25 MPH. ANOTHER STRONG WAS LOCATED JUST SOUTH
OF MAGEE.

DANGEROUS CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE
STORMS.

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 RANKIN AND SIMPSON COUNTIES...INCLUDING THE CITIES OF
MAGEE...MENDENHALL...PINOLA AND STAR...SHOULD MONITOR THIS STORM
CLOSELY.

OLB

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE JACKSON MS
507 PM CDT FRI AUG 10 2007

MSZ049-055-102305-
RANKIN MS-SIMPSON MS-
507 PM CDT FRI AUG 10 2007

...STRONG THUNDERSTORMS IN SOUTHERN RANKIN AND SIMPSON COUNTIES...

STRONG THUNDERSTORMS CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WERE
LOCATED FROM NEAR PINEY WOODS TO JUST WEST OF DLO AT 507 PM
CDT...MOVING SOUTH AT 25 MPH. ANOTHER STRONG STORM WAS LOCATED JUST
SOUTH OF MAGEE.

DANGEROUS CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE
STORMS.

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 RANKIN AND SIMPSON COUNTIES...INCLUDING THE CITIES OF
MAGEE...MENDENHALL...PINOLA AND STAR...SHOULD MONITOR THIS STORM
CLOSELY.

OLB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
515 PM CDT FRI AUG 10 2007

MSZ057-102315-
JASPER MS-
515 PM CDT FRI AUG 10 2007

...STRONG THUNDERSTORM IN JASPER COUNTY...

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED 4 MILES SOUTHEAST OF PAULDING AT 515 PM CDT...MOVING
SOUTHEAST AT 25 MPH.

DANGEROUS CLOUD TO GROUND LIGHTNING IS 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 JASPER COUNTY SHOULD MONITOR THIS STORM CLOSELY.

OLB