RSS FeedsIssued by NWS Cleveland, OH
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 FXUS61 KCLE 250026 AAA AFDCLE AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE CLEVELAND OH 726 PM EST TUE NOV 24 2009 .SYNOPSIS... A LARGE AREA OF LOW PRESSURE OVER THE MID MISSISSIPPI RIVER VALLEY WILL MOVE NORTHEAST ACROSS THE GREAT LAKES TONIGHT...DRAGGING AN OCCLUDED FRONT ACROSS THE AREA ON WEDNESDAY. A SECONDARY COLD FRONT WILL CROSS THE AREA ON THANKSGIVING. HIGH PRESSURE WILL BUILD INTO THE REGION OVER THE WEEKEND. && .NEAR TERM /THROUGH WEDNESDAY/... SHOWERS OVER WRN IN MOVING EAST AT APPROXIMATELY 25KT...SHOULD REACH NW OH TOWARD 7Z OR 8Z. UPPED POPS FOR NW OH TO LIKELY. ALSO REMOVED ALL MENTION OF PRECIP FOR TONIGHT EAST OF A YNG-HZY LINE. JUST DO NOT SEE PRECIP REACHING YNG AREA BEFORE 9Z. TEMPS LOOK REASONABLE. && .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/... A BREAK IN THE PRECIPITATION IS POSSIBLE WEDNESDAY NIGHT...BEFORE A STRONG SHORTWAVE ROTATES AROUND THE UPPER LOW THURSDAY MORNING DRIVING A SECONDARY FRONT ACROSS THE CWA. EXPECT THE PRECIP TO REMAIN AS RAIN UNTIL AFTER SUNSET ON THURSDAY...AS TEMPS DON`T COOL SUFFICIENTLY UNTIL THE FRONT CLEARS THE AREA EARLY FRIDAY MORNING. MODELS TRENDING SLIGHTLY COOLER WITH THE COLD POOL BEHIND THE FRONT - LATEST RUNS HAVE H8 TEMPS FRIDAY NIGHT AROUND -6. FETCH FOR LAKE EFFECT TURNS ONSHORE ON FRIDAY...AND BY FRIDAY NIGHT ALL PRECIP IN THE AREA SHOULD BE LAKE DRIVEN. TOO FAR OUT FOR ACCUM WORDING...BUT WITH THE WARM GROUND AND HIGHS ABOVE FREEZING...EXPECT ONLY MODEST ACCUMULATING SNOWS PRIMARILY AT NIGHT. && .LONG TERM /SATURDAY THROUGH TUESDAY/... LONG TERM BEGINS SATURDAY 12Z WITH BOTH THE GFS AND ECMWF BUILDING AN UPPER RIDGE INTO THE OHIO VALLEY AND LOWER GREAT LAKES REGION FROM THE WEST. EARLY HOWEVER CAN SEE A CHANCE OF LINGERING FLURRIES ACROSS THE SNOW BELT AND PARTICULARLY NWRN PA IN THE NW FLOW AND THE LAST OF THE RETREATING COLD AIR. DURING THE DAY SATURDAY SURFACE HIGH PRESSURE CENTERED IN THE TENNESSEE VALLEY AND GULF COAST STATES WILL EXTEND NORTH INTO THE OHIO VALLEY. THIS SURFACE RIDGE AXIS WILL SHIFT EAST BY EVENING ALLOWING A WARM FRONT INTO THE REGION. WITH THE GENERAL WEAK UPPER RIDGE MOVING ACROSS THE AREA EXPECT DRY CONDITIONS FROM SATURDAY AFTERNOON THROUGH SUNDAY MORNING. MODELS STILL FAIRLY SIMILAR SUNDAY AND SUNDAY NIGHT WITH AN UPPER LOW MOVING THROUGH THE NORTHERN LAKES OR ONTARIO WITH THE SURFACE LOW INTO THE WESTERN/CENTRAL LAKES. HPC HAS THE LOW A BIT FURTHER SOUTH IN SRN LOWER MICHIGAN SUNDAY EVENING WITH A COLD FRONT SOUTHWEST INTO THE LOWER MISSISSIPPI VALLEY. MODELS HAVE MOISTURE AHEAD OF THE SYSTEM INTO THE AREA SUNDAY AFTERNOON AND EVENING. WILL NEED TO BRING CHANCE POPS INTO THE WESTERN HALF OF THE AREA SUNDAY AFTERNOON AND THEN SPREAD IT ACROSS THE AREA SUNDAY NIGHT AND MONDAY. MODEL DIFFERENCES MORE SIGNIFICANT INTO TUESDAY. WILL SIDE WITH THE COOLER GFS AND ALLOW FOR A CHANCE POP FOR A RAIN SNOW MIX MONDAY NIGHT AND BACK TO A RAIN CHANCE TUESDAY. FOLLOWED A MIX OF HPC AND GFS MOS TEMPS FOR THE PERIOD. && .AVIATION /01Z WEDNESDAY THROUGH SUNDAY/... MAINLY MVFR CIGS WITH VFR VSBYS ACROSS THE AREA THIS EVENING. VSBY WILL LOWER TO MVFR IN FOG EARLY TONIGHT. A COLD/OCCLUDED FRONT WILL MOVE THROUGH WEDNESDAY MORNING. BROUGHT SHOWERS IN AHEAD OF THIS FRONT FAR WEST AROUND 06Z AND IN THE FAR EAST SHORTLY AFTER 12Z WEDNESDAY. CIGS AND VSBYS MAY GO IFR IN THESE SHOWERS ESPECIALLY WEST. IT LOOKS LIKE THE THREAT FOR SHOWERS SHOULD DIMINISH AS THE FRONT MOVES THROUGH AND JUST WENT WITH VCSH AFTER FRONT MOVES THROUGH BUT HELD ONTO MVFR CIGS WEDNESDAY AFTERNOON ACROSS THE AREA WHILE VSBYS SHOULD GO VFR. OUTLOOK... PROLONGED PERIODS OF NON-VFR CONDITIONS EXPECTED TO PERSIST THROUGH THE END OF THE WEEK. VFR CONDITIONS MOST LIKELY TO RETURN FOR SATURDAY. && .MARINE... STILL LOOKING AT GALE POTENTIAL FOR FRIDAY BUT IT APPEARS MODELS ARE STARTING TO TREND BACK DOWN A BIT AND GO JUST BELOW GALES. HOWEVER...WITH COLD AIR ADVECTION OVER THE AREA AND FAIRLY TIGHT GRADIENT OVER THE REGION...I AM GOING TO STILL MENTION THE GALE POTENTIAL. I THINK IF WE DO REACH GALE FORCE WINDS FRIDAY AFTERNOON...IT WILL BE SHORT LIVED AND WINDS WILL START TO DIMINISH IN THE EVENING RATHER QUICKLY. IN THE MEAN TIME...SOUTH TO SOUTHWEST FLOW WILL DEVELOP ACROSS THE AREA. BEING AN OFFSHORE FLOW...I ANTICIPATE WAVES WILL BUILD TO 4 FEET JUST OUTSIDE THE NEARSHORE WATERS AND THEREFORE WILL HOLD OFF ON ANY SMALL CRAFT ADVISORIES. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...NONE. PA...NONE. MARINE...NONE. && $$ SYNOPSIS...ASTIFAN NEAR TERM...DJB SHORT TERM...ASTIFAN LONG TERM...TK AVIATION...RANDEL MARINE...LOMBARDY
