Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
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
-- Remove Highlighting --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KPBZ 230507 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 107 AM EDT SAT MAY 23 2015 .SYNOPSIS... CLEAR AND COLD OVERNIGHT. TEMPERATURES WILL WARM TO ABOVE AVERAGE THROUGH THE WEEKEND WITH INCREASING HUMIDITY BY MEMORIAL DAY. && .NEAR TERM /THROUGH TONIGHT/... ONLY A FEW CIRRUS ACROSS THE REGION AS COLD AND DRY HIGH PRESSURE SETTLES ACROSS REGION OVERNIGHT. FROST AND FREEZE HEADLINES REMAIN IN PLACE WITH LOWS BELOW FREEZING FAR NORTH TO MID AND UPPER 30S ELSEWHERE. SUNSHINE WITH TEMPERATURES RECOVERING TOWARD SEASONAL NORMALS THIS AFTERNOON. SURFACE RIDGE WILL SHIFT EAST TONIGHT WITH SOME WARMING AT 850 MB. STILL COOL TEMPERATURES BUT READINGS STAYING IN THE 40S. && .SHORT TERM /SUNDAY THROUGH MONDAY/... MODEL TRENDS FOR THE SYSTEM DEVELOPING ACROSS THE CENTRAL UNITED STATES CONTINUE TO BE SLOWER IN MOVING THE STORM TO THE EAST. THE DELAYED TIMING SHOULD NOT ONLY KEEP ANY SHOWERS/STORMS TO THE WEST OF THE REGION ON SUNDAY...BUT SHOULD ALSO KEEP SUNDAY NIGHT RELATIVELY DRY WITH THE WARM FRONT MOVING ACROSS THE AREA DURING THE OVERNIGHT HOURS. AS THE COLD FRONT INCHES EAST ON MONDAY...MOST OF THE AREA SHOULD HAVE A CHANCE FOR SHOWERS/STORMS ON MEMORIAL DAY...BUT STORMS SHOULD BE SCATTERED IN NATURE. SOUTHWESTERLY WINDS BOTH SUNDAY AND MONDAY WILL ALLOW TEMPERATURES TO WARM BACK ABOVE NORMAL...ESPECIALLY AFTER THE WARM FRONT PASSES SUNDAY NIGHT. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... SOUTHWEST FLOW IS PROGGED TO DEVELOP THROUGH MOST OF THE PERIOD. WEAK CROSSING SHORTWAVES EMBEDDED IN THE FLOW ARE EXPECTED TO KEEP PERIODIC CHANCES FOR SHOWERS/STORMS IN THE FORECAST. AN UPPER TROUGH IS PROGGED FOR A LATE WEEK PASSAGE WITH BETTER FOCUS FOR PRECIP. USED TWEAKED WPC ENSEMBLE BASED GUIDANCE TO SMOOTH OUT SOME MODEL DIFFERENCES. TEMPERATURES SHOULD AVERAGE 10 TO 15 DEGREES ABOVE SEASONAL LEVELS. && .AVIATION /06Z SATURDAY THROUGH WEDNESDAY/... VFR CONDITIONS AND LIGHT WINDS ARE EXPECTED THROUGH SATURDAY NIGHT UNDER HIGH PRESSURE. .OUTLOOK.../SUNDAY THROUGH WEDNESDAY/... DISTURBANCES IN SOUTHWEST FLOW WILL INCREASE RESTRICTIONS CHANCES STARTING TUESDAY. && .CLIMATE... PITTSBURGH RECORD LOW TEMPERATURE FOR SATURDAY MAY 23...32 DEGREES IN 1963. ZANESVILLE RECORD LOW TEMPERATURE FOR SATURDAY MAY 23...32 DEGREES IN 1963. MORGANTOWN RECORD LOW TEMPERATURE FOR SATURDAY MAY 23...34 DEGREES IN 2006. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR MDZ001. OH...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR OHZ039>041. PA...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR PAZ013-014- 020>023-029-031-073>076. FREEZE WARNING UNTIL 9 AM EDT THIS MORNING FOR PAZ007>009-015- 016. WV...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR WVZ001-002-023- 041. && $$

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