Forecast & Discussion
JACKSON-WEST TENNESSEE AREA FORECAST
WEST TENNESSEE WEATHER ONLINE JACKSON TN
5:02 AM CDT Friday, October 17, 2008
.TODAY…MOSTLY SUNNY. HIGH 68.
.TONIGHT…A SCATTERING OF CLOUDS. LOW 45.
.SATURDAY…SUNNY. HIGH 68.
.SATURDAY NIGHT…CLEAR AND CHILLY. LOW AROUND 40.
~EXTENDED FORECAST~
.SUNDAY…MOSTLY SUNNY. HIGH 74.
.MONDAY…MOSTLY SUNNY. LOW 44. HIGH 74.
.TUESDAY…MOSTLY SUNNY. LOW 48. HIGH 75.
.WEDNESDAY…MOSTLY SUNNY. LOW AROUND 50. HIGH 75.
.THURSDAY…MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOW 55. HIGH 65.
HOLMES
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AREA FORECAST DISCUSSION
WEST TENNESSEE WEATHER ONLINE JACKSON TN
5:00 AM CDT Friday, October 17, 2008
.SYNOPSIS
SYSTEM WITH CLOUDS AND RAINS HAS NOW SHEARED OUT TO THE EAST AS NEXT S/W DIGS SE FROM THE DAKOTAS INTO KS PER WV LOOP. IMPRESSIVE MOISTURE CHANNEL FROM LOWER TX COAST UP AND THROUGH GULF STATES. MEANWHILE DRY AIR/CLEAR SKIES HAS WORK INTO MOST OF WEST-TN WITH THE LONE EXCEPTION OF SAVANNAH. ALL OBS AT 09Z REPORTING CLR SKIES EXCEPT SNH WHICH WAS STILL OVC. TEMPS THERE WERE STILL IN THE 50S…OTHERWISE 40S WERE THE RULE. PHT WAS THE CHILLY SPOT AT 44. WINDS WERE NORTHERLY AROUND 5 MPH. SFC HIGH PRESSURE EXTENED FROM THE WRN GRT LKS TO SRN PLAINS.
.SHORT TERM [TODAY THROUGH SUNDAY]
MAIN CHALLENGE THIS PERIOD WITH BE EFFECTS OF NEXT S/W ARRIVING EARLY SAT AND TEMPS. HIGH PRESSURE WILL PROVIDE MAINLY CLEAR SKIES THROUGH THIS EVENING. APPEARS APPROACHING DIGGING S/W WILL BRING US ONLY CLDS WITH ANY SHOWER ACTIVITY REMAINING NORTH IN IL. THE TROF RACES OFF THE EAST COAST BY LATE SUN AS WEAK UPR RIDGE BUILDS IN FOR US. SO CONTINUED DRY-WX WEEKEND FCST. SUN AM TEMPS A BIT OF CHALLENGE AS NAM/GFS TD FCST HAS ABOUT A 7 DEG SPREAD. LOOKING AT THE PLAN VIEW PROG OF TDS, NAM SEEMS MORE REASONABLE GIVEN THE SYNOPTIC FEATURES BUT NOT WILLING TO BITE ON 35 AT MKL. WL STAY WITH CURRENT THINKING OF MIN TEMPS CLOSER TO 40 WITH 30S IN THE NORTHERN COUNTIES.
.LONG TERM [MONDAY THROUGH THURSDAY]
MAIN FCST CHALLENGE DURING THIS PERIOD WILL BE TEMPS THEN RAIN CHANCES BY THURSDAY WITH NEXT AMPLIFYING TROF OVER THE PLAINS. UPR FLOW FLATTENS ON MONDAY AND THEN A RIDGE DEVELOPS OVR THE REGION AS TROFS AMPLIFY TO OUR NE AND WEST. THE WESTERN TROF WILL DIG SE, INTENSIFY AND CUTOFF OVER PLAINS BY WED. MOISTURE BEGINS WORKING INTO OUR AREA WEDNESDAY NIGHT WITH CHANCE POPS ON THURSDAY. WL TWEEK MAV TEMP GUIDANCE THROUGH THE PERIOD.
HOLMES
