Area Forecast Discussion
Issued by NWS Jackson, MS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS64 KJAN 270318 AAA
AFDJAN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
1018 PM CDT THU MAR 26 2015

.UPDATE...THE COLD FRONT WAS NOTED NEAR THE INTERSTATE 59 CORRIDOR
AND WILL PUSH SOUTHEAST OF OUR CWA BY MIDNIGHT. MUCH COOLER AND
DRIER AIR IS FILTERING INTO THE CWA IN THE WAKE OF THE COLD FRONT.
UPDATED TEMPERATURE CURVES EARLIER TO ACCOUNT FOR A LITTLE FASTER
COOLING DUE TO THE GUSTY NORTH WINDS BEHIND THE FRONT. WATER VAPOR
IMAGERY/RAP ANALYSIS SHOWED THE UPPER TROUGH AXIS JUST TO THE
NORTHWEST OF OUR CWA POISED TO MOVE ACROSS OUR CWA THE REMAINDER OF
THE NIGHT. THIS TROUGH WILL SQUEEZE OUT A FEW ADDITIONAL LIGHT
SHOWERS AND HAVE EXTENDED POPS IN OUR EAST UNTIL 3 AM. SATELLITE
IMAGERY ALSO SHOWED CLEARING SKIES IN THE WAKE OF THE UPPER LEVEL
TROUGH SO HAVE ADJUSTED CLOUD COVER WITH THE TIMING OF THE TROUGH.
/22/

&&

.AVIATION...THE COLD FRONT WAS IN VCTY OF HBG AT 03Z PRODUCING IFR
CIGS AND GUSTY NW WINDS. THE COLD FRONT WILL PUSH SE OF OUR AREA BY
05Z BUT THE UPPER LEVEL TROUGH AXIS...NW OF GLH AT 03Z WILL SWING
EAST ACROSS THE REGION OVERNIGHT. UNTIL THE UPPER TROUGH AXIS
SHIFTS...MVFR CIGS WILL PREVAIL ALONG WITH ISOLD LIGHT SHOWERS. CLR
SKIES ARE EXPECTED AREAWIDE FRIDAY MORNING. THE GUSTY NORTH WINDS
WILL GRADUALLY DIMINISH THROUGH THE NIGHT AS THE SFC LOW PRESSURE
CENTER MOVES FARTHER EAST OF THE AREA. /22/

&&

.PREV DISCUSSION... /ISSUED 348 PM CDT THU MAR 26 2015/

DISCUSSION...CONVECTION IS FINALLY STARTING TO DEVELOP AHEAD OF THE
COLD FRONT PRESENTLY FROM TUP-HKS-HEZ...ALTHOUGH NOTHING TO GET
EXCITED ABOUT. BLOCKING EFFECT FROM LARGE CONVECTIVE AREA OVER THE
NORTHERN GULF HAS ONLY ALLOWED WEAK MOISTURE CONVERGENCE ALONG THE
BOUNDARY WITH DEWPOINTS MAINLY IN THE LOWER 60S IN ADVANCE. CONVECTION
WILL CONTINUE INTO THE EVENING OVER THE EAST AND SOUTHEAST AHEAD OF
THE BOUNDARY...CLEARING OUT BY MIDNIGHT.

DRY MID LEVEL NW FLOW WILL PREVAIL MOVING INTO THE WEEKEND...HOWEVER
A WEAK SHORTWAVE LOOKS TO BRUSH THE NE SECTIONS SATURDAY...BUT
LIMITED MOISTURE SHOULD LIMIT PRECIPITATION TO NO MORE THAN
SCATTERED COVERAGE.

BETTER LOW LEVEL SOUTHERLY FLOW WILL SET BACK UP OVER THE REGION BY
SUNDAY AFTERNOON IN ADVANCE OF MID LEVEL SHORTWAVE AND ITS
ASSOCIATED COLD FRONT WHICH SHOULD MOVE INTO THE AREA AFTER MIDNIGHT
SUNDAY NIGHT. SCATTERED CONVECTION DOES LOOK POSSIBLE AHEAD OF THE
BOUNDARY OVER MAINLY NORTH MISSISSIPPI SUNDAY NIGHT...BUT MODEL
SOUNDINGS ARE INDICATING MORE ELEVATED IN NATURE AND BOUNDARY LAYER
WILL HAVE DECOUPLED./26/


&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       76  40  59  40 /  41  30   0   5
MERIDIAN      75  41  60  37 /  80  59   0   1
VICKSBURG     74  39  62  41 /  20  20   0   6
HATTIESBURG   75  45  64  41 /  81  55   0   4
NATCHEZ       73  41  63  43 /  28  20   0   2
GREENVILLE    71  38  58  39 /  20  14   0   8
GREENWOOD     73  37  57  37 /  26  21   2   7

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...NONE.
LA...NONE.
AR...NONE.
&&

$$

22/26


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.