020  
FXUS61 KPBZ 181333  
AFDPBZ  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
933 AM EDT WED SEP 18 2019  
   
SYNOPSIS
 
 
A STRENGTHENING RIDGE OF HIGH PRESSURE WILL PROVIDE DRY WEATHER AND  
ABOVE-NORMAL TEMPERATURES INTO THE WEEKEND.  
 

 
   
NEAR TERM /UNTIL 6 PM THIS EVENING/
 
 
NO CHANGES NEEDED TO THE FORECAST AT THIS TIME. HIGH PRESSURE AT THE  
SURFACE AND ALOFT, ALONG WITH A VERY DRY COLUMN, WILL LEAD TO A SUNNY  
FORECAST. ELECTED TO BUMP UP HIGH TEMPERATURES A FEW DEGREES ACROSS  
THE BOARD GIVEN THE ABUNDANT SUNSHINE AND DRY GROUND. MUCH OF THE  
REGION FROM PIT AND ON SOUTHWEST SHOULD REACH OR EXCEED 80 DEGREES.  
 

 
   
SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/
 
 
NOT MUCH CHANGE TO THE THINKING FOR THIS PERIOD. THE AMPLIFYING UPPER  
RIDGE WILL CONTINUE TO SLOWLY TRUDGE EASTWARD, WITH THE AXIS CREEPING  
INTO THE MIDDLE OHIO VALLEY BY THURSDAY NIGHT. A DRY AND WELL-CAPPED  
COLUMN JUSTIFIES THE CONTINUED DRY FORECAST. TEMPERATURES WILL  
CONTINUE TO SLOWLY CREEP FURTHER ABOVE NORMAL WITH TIME AS MID-LEVEL  
HEIGHTS RISE.  
 

 
   
LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/
 
 
A TROUGH OVER THE WESTERN CONUS WILL FINALLY START TO MAKE SOME  
EASTWARD PROGRESS FRIDAY AND INTO THE WEEKEND. THIS WILL PUSH THE  
RIDGE AXIS THROUGH AND EAST OF OUR REGION BY SATURDAY. DEEPENING  
SOUTHWEST FLOW WILL FINALLY START TO FUNNEL A LITTLE MORE MOISTURE  
INTO OUR REGION. CONTINUED THE TREND OF GOING WITH HIGHER MAX  
TEMPERATURES THAN THOSE SUGGESTED BY SUPERBLEND THROUGH SATURDAY, BY  
WHICH TIME MANY READINGS IN THE LOWER AND MID 80S CAN BE EXPECTED.  
 
IF ANYTHING, THE MODELS ARE A BIT SLOWER IN BRINGING THE NEXT COLD  
FRONT EASTWARD, AS WOULD BE EXPECTED WHEN THE ATTEMPT IS MADE TO  
DISLODGE SUCH A STRONG RIDGE. THE BEST CHANCE FOR OUR NEXT RAINFALL  
STILL APPEARS TO BE SUNDAY NIGHT AND MONDAY AS THE FRONT CROSSES. A  
DRIER AND SLIGHTLY COOLER TUESDAY WOULD THEN FOLLOW.  
 

 
   
AVIATION /14Z WEDNESDAY THROUGH SUNDAY/
 
 
VFR CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD WITH HIGH  
PRESSURE AND DRY AIR ACROSS THE REGION.  
   
OUTLOOK
 
 
NO WIDESPREAD RESTRICTIONS EXPECTED UNDER HIGH PRESSURE.  
 

 
   
PBZ WATCHES/WARNINGS/ADVISORIES
 
 
MD...NONE.  
OH...NONE.  
PA...NONE.  
WV...NONE.  
 

 
 

 
 
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