Severe Thunderstorm Warning 709, NWS Jackson, MS

000 
WWUS54 KJAN 030327
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1027 PM CDT SAT AUG 2 2008

MSC049-089-121-123-163-030400-
/O.CON.KJAN.SV.W.0709.000000T0000Z-080803T0400Z/
HINDS MS-RANKIN MS-SCOTT MS-MADISON MS-YAZOO MS-
1027 PM CDT SAT AUG 2 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR YAZOO...MADISON...WESTERN SCOTT...RANKIN AND NORTHEASTERN HINDS
COUNTIES...

AT 1027 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM MIDWAY TO 6 MILES SOUTHEAST OF CANTON TO
MORTON...OR ALONG A LINE EXTENDING FROM 17 MILES SOUTHEAST OF
THORNTON TO 6 MILES SOUTHEAST OF CANTON TO MORTON...MOVING SOUTHWEST
AT 39 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  FANNIN BY 1035 PM CDT...
  BENTON...GLUCKSTADT AND MADISON BY 1040 PM CDT...
  ANNANDALE...MYRLEVILLE...RIDGELAND AND BRANDON BY 1045 PM CDT...
  FLOWOOD BY 1050 PM CDT...
  TINSLEY BY 1055 PM CDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SUNDAY
MORNING FOR NORTHERN MISSISSIPPI.

LAT...LON 3206 8996 3206 9011 3267 9061 3297 9019
      3289 8997 3288 8980 3279 8972 3258 8973
      3258 8955 3243 8943
TIME...MOT...LOC 0327Z 050DEG 34KT 3288 9014 3254 8998
          3229 8971

$$

BYB

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
830 PM CDT SAT AUG 2008

.UPDATE...SPC HAS PUT MOST OF CENTRAL MISSISSIPP UNDER A SEVERE
THUNDERSTORM WATCH UNTIL 2 AM. A COMPLEX OF STRONG-SEVERE STORMS
WAS DEVELOPING SOUTHWEST FROM NORTHEAST MISSISSIPPI. SO HAVE INCREASED
POPS ACROSS THE ARKLAMISS FOR MOST OF THE NIGHT. HAVE ADJUSTED HOURLY
TEMPS. THIS WAS DUE TO AN UPPER LEVEL DISTURBANCE THAT WAS MOVING
ACROSS THE REGION IN NORTHERLY FLOW ALOFT. THE REST OF FORECAST APPEARS
TO BE ON TRACK../17/

./PREVIOUS DISCUSSION...251 PM CDT SAT AUG 2 2008/

.SHORT TERM...THE BIG STORY FOR THE NEXT SEVERAL DAYS FOR THE
ARKLAMISS REGION CONTINUES TO BE THE HEAT.  WATER VAPOR IMAGERY THIS
AFTERNOON SHOWS UPPER RIDGING TO THE WEST OF THE AREA THAT IS
BUILDING EAST. SURFACE OBSERVATIONS SHOWS A WEAK BOUNDARY STRETCHED
NORTH OF THE AREA ACROSS AR AND AROUND EXTREME NORTH MS/SOUTH TN.
HIGH PRESSURE IS STRETCHED ALONG THE GULF COAST STATES...WITH THE
EXCEPTION OF A SURFACE LOW THAT IS DEVELOPING OVER THE NORTHEASTERN
GULF. VISIBLE IMAGERY SHOW CLOUDS HAVE STRUGGLED TO FORM THIS
AFTERNOON AS A RESULT OF THE DECENT SUBSIDENCE SHOWN BY THIS
MORNINGS KJAN SOUNDING.  A FEW ISOLATED SHOWERS AND STORMS ARE
DEVELOPING ALONG AND SLIGHTLY AHEAD OF THE WEAK SURFACE BOUNDARY.
GUI CAME IN DRY FOR THE AREA FOR TONIGHT.  FOR THE MOST PART AGREE
WITH THIS.  ALTHOUGH A FEW VERY ISOLATED STORMS CAN NOT BE RULED OUT
FOR A FEW HOURS IN THE EARLY EVENING...MAINLY ALONG AND NORTH OF
INTERSTATE 20 AS THIS DISTURBANCE DRIFTS SOUTH. SO HAVE INCREASED
POPS VERY SLIGHTLY TO THROW IN ISOLATED WORDING INTO THE WX GRIDS
FOR AREAS NORTH OF INTERSTATE 20. WITH DECENT INSTABILITY IN PLACE A
FEW OF THESE STORMS COULD BECOME STRONG IF THEY CAN MANAGE TO
DEVELOP.

AS MENTIONED BEFORE THE MAIN CONCERN IS THE HEAT THROUGH THE NEXT
SEVERAL DAYS.  HIGH PRESSURE IS BUILDING OVER THE REGION THROUGH THE
NEXT FEW DAYS.  THIS WILL SUPPRESS CLOUD COVER AND AFTERNOON
CONVECTION EACH DAY. IN ADDITION...DEWPOINTS SHOULD BE IN OR AROUND
THE MIDDLE 70S FOR THE REGION.  WITH HIGH TEMPERATURES REACHING THE
UPPER 90S TO EVEN THE TRIPLE DIGITS IN SOME LOCATIONS...MAINLY
ACROSS THE NORTHWEST...HEAT INDICES WILL BE ABLE TO BE BETWEEN 105
AND 110 DEGREES.  SOME LOCATIONS...MAINLY ACROSS THE DELTA
REGION...WILL BE ABLE TO EXCEED 110 DEGREE HEAT INDICES DURING THE
PEAK OF THE AFTERNOON. LOWS THROUGH THE NEXT SEVERAL NIGHTS WILL
ONLY FALL TO THE MIDDLE 70S. AS A RESULT...THE HEAT ADVISORY WILL BE
CONTINUED THROUGH SUNDAY MORNING FOR AREAS NORTHWEST OF THE NATCHEZ
TRACE.  FOR SUNDAY...THE HEAT ADVISORY WILL  BE EXPANDED FOR THE
REMAINDER OF THE AREA...AND AN EXCESSIVE HEAT WARNING WILL BE ISSUED
FOR THE NORTHWESTERN PORTIONS OF THE FORECAST AREA.  WILL CONTINUE
THE HEAT WATCH ON MONDAY AND EXTEND IT INTO TUESDAY AS WELL AS THE
HEAT IS EXPECTED TO CONTINUE INTO THE MIDDLE OF NEXT WEEK.

OVERALL THE AREA WILL REMAIN DRY THROUGH THE NEXT FEW DAYS. THERE
IS AN AREA OF LOW PRESSURE OVER THE NORTHEASTERN GULF OF MEXICO.
THIS FEATURE IS EXPECTED TO TRACK WEST ACROSS THE NORTHERN GULF OF
MEXICO. THIS COMBINED WITH SEE SEA BREEZE ACTIVITY SUNDAY AND MONDAY
AFTERNOONS WILL GIVE SMALL RAIN CHANCES FOR MAINLY HWY 84 AND SOUTH.
OTHERWISE THIS FEATURE IS NOT EXPECTED TO AFFECT THE AREA TOO MUCH.
IT MAY HOWEVER AT LEAST BRING A RELIEF TO THE HEAT TO EXTREME
SOUTHERN PORTIONS OF THE FORECAST AREA. OVERALL HAVE REMAINED WITH
GUI POPS FOR THE NEXT FEW DAYS. /14/

.LONG TERM...TUESDAY THROUGH NEXT FRIDAY. MEDIUM RANGE MODELS ARE IN
FAIR AGREEMENT WITH A HOT START FOR THE LONG TERM AND LOW RAIN
CHANCES THROUGH NEXT WEEK THAT SHIFT FROM THE SOUTH INITIALLY THEN
TO THE NORTH TOWARD THE END OF THE PERIOD. THE HEAT AND HUMIDITY
WILL CONTINUE INTO WEDNESDAY FOR OUR NORTHWEST AS THE LARGE DOME OF
HIGH PRESSURE SLOWLY WEAKENS OVER OUR REGION. THIS WILL OCCUR AS THE
UPPER LEVELS AMPLIFY WITH RIDGING OVER THE ROCKIES AND TROUGHING
OVER THE EASTERN CONUS. THE RESULTING NORTHWEST FLOW ALOFT OVER OUR
REGION WILL BRING US SEVERAL DISTURBANCES AND A COUPLE OF FRONTAL
BOUNDARIES THAT WILL HELP INCREASE CLOUDS AND RAIN CHANCES IN OUR
NORTHERN ZONES. BY THURSDAY THE FIRST FRONT IS EXPECTED TO STALL
OVER NORTHERN MISSISSIPPI. STORMS THAT INITIATE ALONG THE FRONT
THURSDAY WILL TRACK TO THE SOUTHEAST AND ENTER INTO OUT NORTHEAST
COUNTIES. A DISTURBANCE IN THE NORTHWEST FLOW WILL COMBINE WITH THE
BOUNDARY AND DAYTIME HEATING TO RESULT IN SCATTERED COVERAGE OF
STORMS OVER OUR NORTHERN ZONES FRIDAY. THE GULF SEABREEZE WILL BRING
A SLIGHT CHANCE OF RAIN TO OUR SOUTHERN MOST COUNTIES NEXT WEEK. A
POTENT SHORTWAVE IS EXPECTED TO BRING A SECOND FRONTAL BOUNDARY INTO
NORTHERN MISSISSIPPI NEXT SATURDAY. THIS SYSTEM MAY PROVE TO BE OUR
NEXT BEST CHANCE FOR WIDESPREAD COVERAGE OF RAIN OVER THE CWFA
THROUGH THE PERIOD. MAV GUIDANCE HIGHS FOR MONDAY AND TUESDAY WERE A
LITTLE TOO COOL AND AMONG THE LOWEST ENSEMBLE MEMBERS FOR MUCH OF
OUR AREA. WENT SEVERAL DEGREES ABOVE GUIDANCE TOWARD HIGHEST
ENSEMBLE MEMBERS. MAV POPS WERE GENERALLY ACCEPTED THROUGH THE
PERIOD. /22/

&&

.AVIATION...MOSTLY SCATTERED CLOUDS 4-5K FEET SHOULD BE THINNING OUT
RAPIDLY 23-01Z TO OCCASIONALLY BROKEN ABOVE 12K FEET AND WILL GIVE
WAY TO SKC CONDS BY 03Z THIS EVENING. ISOLATED SHRA/TSRA ALONG AND S
OF HIGHWAY 98 AND ACROSS THE HIGHWAY 82 CORRIDOR MAY FORM THROUGH
02Z AS BEST POTENTIAL INSTABILITY REMAINS SITUATED OVER THE DELTA
REGION. PATCHY MVFR FOG COULD DEVELOP 08-13Z SUNDAY MORNING FOLLOWED
BY VFR CONDS WITH SCATTERED CUMULUS 3-4K FEET FORMING 15-23Z./40/

&&
.PRELIMINARY POINT TEMPS/POPS...
JACKSON       73  99  76  99 /  41  14   6   7
MERIDIAN      72  96  73  97 /  54  14   3   6
VICKSBURG     73 100  76  99 /  25  12  10   9
HATTIESBURG   74  97  75  95 /  51  18  11  14
NATCHEZ       73  98  75  95 /  25  19  19  10
GREENVILLE    75 102  74 101 /  24   7   8   9
GREENWOOD     74 101  75 101 /  34   9   6   8

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...HEAT ADVISORY FROM 10 AM SUNDAY TO 6 AM CDT MONDAY FOR MSZ039-
     046-051-052-056>058-061>066-072>074.

     EXCESSIVE HEAT WATCH FROM MONDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR MSZ018-019-025>066-072>074.

     EXCESSIVE HEAT WARNING FROM 10 AM SUNDAY TO 6 AM CDT MONDAY FOR
     MSZ018-019-025>038-040>045-047>050-053>055-059-060.

     HEAT ADVISORY UNTIL 10 AM CDT SUNDAY FOR MSZ018-019-025>038-
     040>045-047>050-053>055-059-060.

LA...EXCESSIVE HEAT WATCH FROM MONDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR LAZ007>009-015-016-023>026.

     EXCESSIVE HEAT WARNING FROM 10 AM SUNDAY TO 6 AM CDT MONDAY FOR
     LAZ007>009-015-016-023>026.

     HEAT ADVISORY UNTIL 10 AM CDT SUNDAY FOR LAZ007>009-015-016-
     023>026.

AR...EXCESSIVE HEAT WATCH FROM MONDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR ARZ074-075.

     EXCESSIVE HEAT WARNING FROM 10 AM SUNDAY TO 6 AM CDT MONDAY FOR
     ARZ074-075.

     HEAT ADVISORY UNTIL 10 AM CDT SUNDAY FOR ARZ074-075.

&&

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
846 PM CDT SAT AUG 2 2008

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
040145-
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-
836 PM CDT SAT AUG 2 2008

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

.DAY ONE...TONIGHT AND SUNDAY

ISOLATED TO SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE
TONIGHT OVER PORTIONS OF CENTRAL MISSISSIPPI. THIS RISK WILL BE
CONFINED TO LOCATIONS...MAINLY ALONG AND EAST OF A LINE FROM INDIANOLA
TO A JACKSON METRO LINE. THE MAIN IMPACT RISK WITH ANY STORM WILL BE
DAMAGING WIND GUSTS UP TO 60 MPH AND PENNY TO NICKEL SIZE HAIL.
ISOLATED STRONG TO SEVERE STORMS WILL ALSO BE POSSIBLE AGAIN ON
SUNDAY AFTERNOON.

A WEAK DISTURBANCE MOVING SOUTH INTO A VERY WARM AND UNSTABLE AIRMASS
IN PLACE OVER THE REGION IS EXPECTED TO CONTINUE OUR CHANCES
STRONG TO SEVERE THUNDERSTORMS FOR THIS EVENING AND AGAIN LATER ON
SUNDAY.

OTHERWISE...A VERY HOT PERIOD OF WEATHER HAS BEGUN ONCE AGAIN AND
WILL RESULT IN AFTERNOON TEMPERATURES AROUND 100 DEGREES NORTHWEST
OF THE NATCHEZ TRACE CORRIDOR ON SUNDAY...WITH READINGS ELSEWHERE
EXPECTED TO PEAK BETWEEN 96 AND 99 DEGREES. THE COMBINATION OF HEAT
AND HUMIDITY WILL BRING HEAT INDICES BETWEEN 105 AND 110 DEGREES FOR
A FEW HOURS. A HEAT ADVISORY HAS BEEN POSTED THROUGH TONIGHT WEST OF
THE NATCHEZ TRACE AND WILL BE UPGRADED TO AN EXCESSIVE HEAT WARNING
ON SUNDAY. A HEAT ADVISORY WILL GO INTO EFFECT ON SUNDAY FOR
SOUTHEAST MISSISSIPPI AS WELL. PLEASE SEE THE ASSOCIATED HEAT
ADVISORY FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...SUNDAY NIGHT THROUGH FRIDAY

HEAT STRESS CONDITIONS ARE LIKELY TO REMAIN HIGH SUNDAY NIGHT
THROUGH TUESDAY AS HIGH TEMPERATURES WILL PEAK FROM 97 TO 102 DEGREES
AND DAYTIME HEAT INDEX VALUES WILL VARY FROM 106 TO 112 DEGREES.
OVERNIGHT LOWS WILL FREQUENTLY ONLY RECOVER TO THE MIDDLE 70S. THE HEAT
ADVISORIES AND WARNINGS OF SUNDAY WILL REMAIN IN PLACE FOR MONDAY AND
THE EXCESSIVE HEAT WATCH WILL BE EXTENDED INTO TUESDAY FOR MUCH OF
THE ARKLAMISS...ESPECIALLY ALONG AND NORTH OF INTERSTATE TWENTY.

REVIEW YOUR HEAT STRESS SAFETY RULES AND MAKE PLANS NOW TO AVOID
PROLONGED EXPOSURE TO THESE EXPECTED HOT CONDITIONS.

.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 FOR TONIGHT. OTHERWISE ACTIVATION
IS NOT EXPECTED THROUGH NEXT FRIDAY.

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

17

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
942 PM CDT SAT AUG 02 2008

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

0937 PM     TSTM WND GST     3 E MERIDIAN            32.38N 88.66W
08/02/2008  E60 MPH          LAUDERDALE         MS   BROADCAST MEDIA

&&

27

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
946 PM CDT SAT AUG 2 2008

MSZ050-051-056>058-030330-
SMITH MS-CLARKE MS-JASPER MS-NEWTON MS-SCOTT MS-
946 PM CDT SAT AUG 2 2008

...GUSTY THUNDERSTORMS MOVING TOWARD CENTRAL MISSISSIPPI FROM THE
NORTHEAST...

AN OUTFLOW BOUNDARY OF GUSTY NORTHEAST WINDS UP TO 45 MPH WAS
LOCATED FROM 10 MILES NORTH OF STEELE TO 7 MILES NORTHEAST OF ORANGE
AT 946 PM CDT...MOVING SOUTHWEST AT 29 MPH. THESE WINDS ARE RUNNING
SOME 5 TO 15 MILES AHEAD OF ACTUAL THUNDERSTORMS.

PEOPLE IN SCOTT...WESTERN NEWTON...JASPER...EXTREME WEST CENTRAL
CLARKE AND NORTHEASTERN SMITH COUNTIES SHOULD MONITOR THESE STORMS
CLOSELY.

BYB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
952 PM CDT SAT AUG 02 2008

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

0843 PM     TSTM WND DMG     SCOOBA                  32.83N 88.48W
08/02/2008                   KEMPER             MS   EMERGENCY MNGR

            TREES DOWN IN SCOOBA.

&&

27

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
958 PM CDT SAT AUG 02 2008

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

0930 PM     TSTM WND DMG     NOXAPATER               32.99N 89.06W
08/02/2008                   WINSTON            MS   PUBLIC

            SEVERAL TREES DOWN IN NOXAPATER.

&&

27

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1000 PM CDT SAT AUG 2 2008

MSZ043-048-049-030400-
HINDS MS-RANKIN MS-MADISON MS-
1000 PM CDT SAT AUG 2 2008

...GUSTY THUNDERSTORMS MOVING SOUTHWEST TOWARDS THE JACKSON METRO...

A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING 40 TO 50 MPH
WINDS WAS LOCATED FROM 14 MILES NORTHEAST OF SHARON TO 31 MILES EAST
OF PELAHATCHIE AT 1000 PM CDT...MOVING SOUTHWEST AT 45 MPH. THESE
STORMS WILL PUSH THROUGH THE GREATER JACKSON METROPOLITAN AREA
BEFORE MIDNIGHT...AND COULD POTENTIALLY BE SEVERE.

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...RANKIN AND HINDS COUNTIES SHOULD MONITOR THESE
STORMS CLOSELY.

BYB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1008 PM CDT SAT AUG 02 2008

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

1002 PM     TSTM WND GST     DECATUR                 32.44N 89.11W
08/02/2008  M53 MPH          NEWTON             MS   EMERGENCY MNGR

            REPORTED BY NEWTON COUNTY EMA.

&&

27