Forecast & Discussion

Frost advisories until 9 AM for:  Henry, Carroll, Benton, Henderson, Decatur, Hardin, Chester, Hardeman and McNairy Counties.

JACKSON-WEST TENNESSEE AREA FORECAST

WEST TENNESSEE WEATHER ONLINE JACKSON TN

5:07 AM CDT Monday, October 20, 2008

 

.TODAY…MOSTLY SUNNY. HIGH 73.

.TONIGHT…MAINLY CLEAR DURING THE EVENING WITH A FEW CLOUDS PASSING BY AFTER MIDNIGHT. LOW 47.

.TUESDAY…PARTLY SUNNY. HIGH 70.

.TUESDAY NIGHT…PARTLY CLOUDY. LOW 47.

~EXTENDED FORECAST~

.WEDNESDAY…PARTLY CLOUDY. HIGH 71.

.THURSDAY…MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND ISOLATED THUNDERSTRORMS. LOW 51. HIGH 63.

.FRIDAY…PARTLY CLOUDY. LOW 47. HIGH AROUND 60.

.SATURDAY THROUGH SUNDAY…MAINLY CLEAR. LOWS 43. HIGHS 65.

HOLMES

$$

AREA FORECAST DISCUSSION

WEST TENNESSEE WEATHER ONLINE JACKSON TN

4:53 AM CDT Monday, October 20, 2008

 

.SYNOPSIS

CLEAR-CALM CONDITIONS OVR THE REGION AT 09Z. TEMPS RANGED FROM 36 AT LEXINGTON AND SAVANNAH TO 42 AT SELMER AND 41 AT DYERSBURG. FROST ADYS ARE POSTED UNTIL 14Z FOR COUNTIES BORDERING THE TN RVR PLUS HENDERSON-CHESTER-MCNAIRY AND HARDEMAN COUNTIES. WHICH LOOKS GOOD. SFC HIGH PRESSURE EXTENDS FROM NEW BRUNSWICK TO NEW ORLEANS.

UPR FLOW HAS BRIEFLY FLATTENED AS A WEAK UPR RIDGE IS SLIDING EAST AS A WK S/W PASSES THROUGH THE MIDWEST TO OUR NORTH. ONLY FEW CLDS ARE ASSOC WITH THE S/W.

 

.SHORT TERM [TODAY THROUGH WEDNESDAY]

DURING THIS PERIOD UPR FLOW BECOMES AMPLIFIED AGAIN S/W COMING INTO WEST COAST OF CANADA THIS MORNING WL DIG SE AND CUTOFF OVER THE C-PLAINS BY WED AM. WHILE THIS IS EVOLVING OUR AREA WILL CONTINUE TO ENJOY BEAUTIFUL FALL WEATHER. IT’LL BE FEW DEGREES WARMER TODAY. A DRY COLD FRONT WILL SLIDE THROUGH THE AREA ON TUESDAY BUT ONLY A WIND SHIFT WILL BE NOTED ALONG WITH A FEW CLOUDS. HIGHS TUESDAY WILL BE CLOSER TO VALUES EXPERIENCED ON SUN. ON WEDNESDAY, PRESSURE GRADIENTS TIGHTENS A BIT AS INTENSE LOW DEVELOPS OVER THE PLAINS. AT THIS TIME IT APPEARS ATM WL NOT MOISTEN UP SUFFICIENTLY FOR ANY POPS DURING THIS PERIOD. SO WILL KEEP A DRY FCST.

 

.LONG TERM [THURSDAY THROUGH SUNDAY]

THE ACTION BEGINS DURING THIS PERIOD AS THE MAIN CHALLENGE WILL BE POPS AND TEMPS. IT APPEARS TIMING WILL REDUCE ANY THREAT FOR SVR WEATHER. RIGHT NOW IT APPEARS THAT SHOULD REMAIN TO OUR SOUTH. THE UPR LOW WILL OPEN UP AS IT LIFTS NE INTO THE LAKES REGION. MEANWHILE WE WILL REMAIN IN A MEAN TROF FOR THE UPCOMING WEEKEND. WITH WEAK SFC HIGH PREVAILING.

 

HOLMES