Aikyam-Lab/Synoptic-Bench huggingface dataset:
1248 AM EDT WED APR 13 2016 HIGH PRESSURE WILL BUILD OVER THE REGION WEDNESDAY AND TAKE CHARGE OF OUR WEATHER THROUGH THE WEEKEND. A WEAK SECONDARY TROF HAS RESULTED IN A FAIR AMOUNT OF CLOUD COVER ACROSS CENTRAL NEW YORK THIS EVENING ALONG WITH A FEW SPRINKLES/FLURRIES. A WEAK WAVE ALOFT WILL BRING SOME MID LEVEL MOISTURE AND PASSING CLOUDS FOR AN INTERVAL OF CLOUDS AND SUN TYPE OF DAY WITH TEMPERATURES ONLY GRADUALLY WARMING ABOVE TODAY'S READINGS AS WE REMAIN IN A SLIGHT LOW LEVEL THERMAL TROF. STACKED HIGH PRESSURE BECOMES SOLIDLY ESTABLISHED WITH THICKNESS VALUES TRENDING UPWARD DURING THIS PERIOD AS WE REMAIN ON THE GOOD SIDE OF THE OMEGA BLOCKING SITUATION.
748 PM EDT TUE APR 12 2016 A COLD FRONT WILL PUSH THROUGH THE FORECAST AREA TONIGHT.
755 PM EDT TUE APR 12 2016 HIGH PRESSURE WILL BUILD TOWARD THE CANADIAN MARITIMES INTO MID WEEK. THE HIGH WILL CENTER INTO THE CANADIAN MARITIMES INTO MIDWEEK.
HIGH PRESSURE RIDGE PROVIDING WALL-TO-WALL SUNSHINE AND LIGHT WINDS ACROSS THE DVN CWA. THERE WILL BE ENOUGH OF A SOUTH WIND TO KEEP TEMPERATURES WARMER THAN LAST NIGHT. MINIMUM TEMPERATURES SHOULD BE IN THE LOWER TO MID 30S AND THERE MAY BE SOME PATCHY FROST.
DEW POINT SPREADS REMAIN LARGE ACROSS MIDDLE TENNESSEE, BUT TEMPS WILL REMAIN A FEW DEGREES ABOVE FREEZING DESPITE NE WINDS AND DECENT RADIATIONAL COOLING CONDITIONS SETTING UP. THERE MAY BE LIGHT FROST AT THE HIGHEST ELEVATIONS OF THE UPPER PLATEAU, BUT IT SHOULD BE CONFINED TO THOSE AREAS.
703 PM EDT TUE APR 12 2016 HIGH PRESSURE CENTERED OVER LAKE MICHIGAN WILL BUILD TO QUEBEC BY WEDNESDAY NIGHT. COOL NORTHEASTERLY WINDS WILL CONTINUE OFF LAKE ERIE AS HIGH PRESSURE SHIFTS TO THE EASTERN GREAT LAKES.
855 PM EDT TUE APR 12 2016 HIGH PRESSURE IS EXPECTED TO BRING DRY WEATHER AND A GRADUAL WARMING TREND THROUGH THE WEEKEND. CL WEAK GENERAL MID-LEVEL TROUGHING WILL HAVE ONE LAST REINFORCING SHORT WAVE TROUGH SLIDE DOWN THE BACK SIDE OF THE LONG WAVE TROUGH WEDNESDAY EVENING.
1232 AM EDT WED APR 13 2016 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH THE END OF THE WEEK. OVER THE LOWER SUSQ VALLEY WHERE THE GROWING SEASON HAS OFFICIALLY BEGUN. AREAS OF FROST LOOK LIKELY AS TEMPS BOTTOM OUT NEAR FREEZING. ISOLATED AREAS MAY HIT FREEZING DOWN THERE. HIGH PRESSURE TO OUR NORTH WILL KEEP US DRY. HOWEVER A WEAK MID LEVEL TROUGH IS FORECAST TO DROP DOWN OUT OF THE GR LAKES WHICH MAY BRING MORE IN THE WAY OF MID AND HIGH CLOUDS THAN CURRENTLY INDICATED IN THE MODEL OUTPUT.
638 PM CDT TUE APR 12 2016 MOISTURE WILL BE ON THE INCREASE THROUGH WEDNESDAY AS AN UPPER LEVEL LOW PRESSURE SYSTEM APPROACHES FROM OKLAHOMA AND TEXAS.
709 PM EDT TUE APR 12 2016 A COLD FRONT WILL MOVE THROUGH THE REGION THIS EVENING. HIGH PRESSURE WILL BUILD IN ON WEDNESDAY AND REMAIN IN CONTROL THROUGH THE WEEKEND. LATEST OBS SHOW COLD FRONT JUST TO THE NW OF THE FORECAST AREA. ESPECIALLY ALONG THE COAST WITH A TIGHT PRESSURE GRADIENT BETWEEN HIGH PRESSURE CENTERED TO OUR NORTHWEST AND AN AREA OF LOW PRESSURE WELL OFF THE COAST.
A COLD FRONT ACROSS SOUTH CENTRAL GA WILL MOVE SOUTH OF THE AREA BY LATE TONIGHT.
AT THE SFC A RIDGE EXTENDS FROM THE GREAT LAKES THRU THE SRN MS RIVER VALLEY. WHILE A WEAK UPPER RIDGE COVERED MUCH OF THE SERN US. HIGH PRESSURE ACROSS THE REGION WILL KEEP CLR SKIES THRU MIDNIGHT.
827 PM EDT TUE APR 12 2016 STRONG HIGH PRESSURE REMAINS OVER MICHIGAN THIS EVENING.
1024 PM EDT TUE APR 12 2016 COLD FRONT EXITS THIS MORNING. HIGH PRESSURE CENTERED TO OUR NORTH AND NORTHEAST. RIDGING CONTINUES TO BUILD OVER THE REGION TONIGHT. TEMPERATURES ARE NOW FORECASTED TO BE AT OR SLIGHTLY ABOVE FREEZING IN THESE AREAS SO HAVE DECIDED TO ISSUE A FROST ADVISORY IN THESE LOCATIONS INSTEAD OF A FREEZE WARNING. AS BELOW FREEZING TEMPS STILL LOOK LIKE THEY WILL BE WIDESPREAD IN THOSE AREAS. HIGH PRESSURE TO THE NORTHEAST WILL PROVIDE DRY WEATHER AND MOSTLY CLEAR SKIES THROUGH THE FORECAST PERIOD.
1208 PM EDT TUE SEP 1 2015 HIGH PRESSURE WILL REMAIN OVER THE OHIO VALLEY THROUGH LATE WEDNESDAY.
1154 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL CROSS THE REGION TODAY. A COLD FRONT WILL APPROACH LATER WEDNESDAY.
709 AM CDT TUE SEP 1 2015 RAIN CHANCES AND TEMPERATURES WILL BE THE MAIN FOCUS THROUGH THE FORECAST PERIOD AS AREA BALANCES BETWEEN DEEPENING UPPER TROUGH IN THE WEST AND RIDGING FROM THE SOUTHERN PLAINS TO THE GREAT LAKES REGION.
A DRY SOUTHWEST FLOW ALOFT TODAY WILL BRING WARMER AIR INTO SE OREGON AND SW IDAHO. ALONG WITH BREEZY CONDITIONS OVER THE HIGH DESERTS OF SOUTHERN HARNEY/MALHEUR AND SW OWYHEE COUNTIES. UPPER LEVEL LOW WILL PUSH ACROSS SW CANADA AND DRIVE A MOSTLY DRY COLD FRONT THROUGH SE OREGON LATE TUESDAY NIGHT. MOISTURE WITH UPPER LOW OFFSHORE TO NW WA.
924 AM PDT TUE SEP 1 2015 AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR AND COOLER WEATHER THIS WEEK. SLIGHTLY WARMER THIS WEEKEND. WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER- LEVEL TROUGH ALONG THE WEST COAST. WITH DEEP LOW PRESSURE JUST OFF THE COAST OF CENTRAL BRITISH COLUMBIA AND A VERY WEAK LOW AROUND 250 MILES SW OF POINT CONCEPTION. THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA THROUGH THE REST OF THE WORK WEEK.
ISOLATED TO SCATTERED CONVECTION EXPECTED TO DEVELOP DURING THE DAYTIME HRS AS AN UPPER TROUGH BECOMES STATIONARY OVER SE TX. /ISSUED 413 AM CDT TUE SEP 1 2015/ WATER VAPOR IMAGERY DEPICTS A WEAK UPPER LOW SLOWLY TRACKING NWRD THIS MORNING ACROSS SE TX. TEMPERATURES SHOULD REACH THE LOW TO MID 90S THIS AFTERNOON. THIS GENERAL PATTERN LOOKS TO CONTINUE OVER THE NEXT FEW DAYS WITH THE UPPER LOW LINGERING OVERHEAD. KEEPING THE HIGHEST CHANCES OVER OUR SRN SECTIONS. HIGHS IN THE LOW TO MID 90S ARE EXPECTED TO PREVAIL DESPITE THE SLIGHT CHANCES FOR RAIN.
1030 AM CDT TUE SEP 1 2015 SURFACE OBS THIS MORNING SHOW A WARMER AND MORE HUMID DAY VERSUS YESTERDAY AT THIS TIME WITH TEMPS ALREADY IN THE LOW TO MID 80S AND DEWPOINTS IN THE MID TO UPPER 60S UNDER MOSTLY CLEAR SKIES. RIDGING BOTH AT THE SURFACE AND ALOFT WITHOUT ANY SIGNIFICANT DIRECTIONAL BOUNDARY LAYER FLOW WILL KEEP TEMPERATURES FROM CLIMBING ANY MORE THAN ONE OR TWO DEGREES EACH DAY. WEDNESDAY STILL LOOKS TO BE THE WARMEST OF THE WEEK WHEN THE RIDGE WILL HAVE ITS GREATEST INFLUENCE.
UPSTREAM COLD FRONT IS DECAYING QUICKLY. HAVE VERY SLIGHTLY LOWERED MAX TEMPS NORTH OF THE BRIDGE. THE WEAK AND MOISTURE STARVED FRONT/TROUGH CONTINUES TO MOVE ACROSS THE REGION WEDNESDAY.
1150 AM CDT TUE SEP 1 2015 18Z TAF CYCLE AN UPPER RIDGE OVER THE PANHANDLES WILL BREAK DOWN LATE TODAY AND TONIGHT AS AN UPPER TROUGH TRACKS EAST ACROSS THE CENTRAL ROCKIES INTO THE CENTRAL PLAINS STATES. WITH ONSET OF SAME OCCURRING LATER AT KDHT DUE TO PROXIMITY OF SURFACE TROF. WITH THE UPPER JET HAVING SHIFTED FARTHER SOUTH ALONG THE CANADIAN BORDER/NORTHERN TIER STATES AND STRONGER UPPER-LEVEL TROUGHS/LOWS BEGINNING TO MOVE ACROSS THIS PART OF THE COUNTRY. THE PANHANDLES WILL GENERALLY STAY IN WEAK WEST/SOUTHWEST FLOW ALOFT ON THE WESTERN PERIPHERY OF THE UPPER RIDGE.
657 AM CDT TUE SEP 1 2015 LATEST UPPER AIR ANALYSIS CONTINUES TO SHOW A LARGE RIDGE OF HIGH PRESSURE EXTENDING FROM THE SOUTHERN PLAINS TO THE EASTERN GREAT LAKES. HOWEVER A WEAKNESS IN THE RIDGE IS NOTED FROM INDIANA SOUTHWESTWARD TO THE OZARKS. AM EXPECTING A HOT AND DRY DAY ACROSS THE BOARD WITH HIGH TEMPERATURES CLIMBING INTO THE LOWER 90S.
A HIGH PRESSURE SYSTEM LOCATED ACROSS THE MID- ATLANTIC. THE FLORIDA KEYS WILL REMAIN UNDER THE EFFECTS OF THE RIDGE.
4 INCH RANGE) ASSOCIATED WITH THE TROUGH WILL FAVOR HIGHEST RAIN CHANCES ACROSS THE NATURE COAST COUNTIES TODAY.
THOUGH MAYBE NOT AS WIDESPREAD GIVEN A LITTLE MORE WIND/MIXING IN THE LOWER LEVELS.
1031 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL REMAIN OFFSHORE TODAY.
WATER VAPOR IMAGERY THIS MORNING SHOWS A WELL DEFINED UPPER LOW OVER CENTRAL INDIANA WITH A NARROW PLUME OF MID-UPPER LEVEL MOISTURE WRAPPING AROUND THE NW FLANK OF THE SMALL CIRCULATION IN OUR SOUTHEAST CWA.
A WEAK MID LEVEL SHEAR AXIS STRATCHES FROM NEAR OF THE OHIO RIVER THROUGH WESTERN ARKANSAS TO A WEAK UPPER LOW OVER EASTERN TEXAS. HIGHS WIL MAINLY BE IN THE LOWER 90S. THE UPPER LEVEL LOW PRESSURE/TROUGH AXIS CONTINUES TO SHEAR OUT. WATER VAPOR IMAGERY STILL SHOWS SEVERAL SMALLER-SCALE CIRCULATIONS WITHIN THE LARGER AREA OF LOW PRESSURE. HIGH TEMPERATURES TODAY WILL WARMER AS WELL. WITH AREAS ALONG THE MISSISSIPPI RIVER VALLEY REACHING THE LOW 90S. POINTS NORTHEAST WILL BE COOLER WITH HIGHS IN THE UPPER 80S TO NEAR 90. THE UPPER LEVEL FLOW PATTERN SIGNIFICANTLY AMPLIFIES IN RESPONSE TO STRONG TROUGHING DIGGING INTO THE PACIFIC NORTHWEST. AN ANOMALOUSLY STRONG RIDGE DEVELOPS WELL NORTH INTO THE HUDSON BAY REGION OF CANADA WITH THE MID- SOUTH SQUARELY UNDER ITS INFLUENCE.
AN UPPER LEVEL TROUGH DEVELOPING OVER WESTERN CANADA WILL SETTLE SOUTH INTO THE PACIFIC NORTHWEST MIDWEEK. A MOSTLY DRY FOLLOWED BY COOLER FALL LIKE TEMPERATURES SPREADING ACROSS THE REGION OVER THE WEEKEND. DOWNSTREAM FROM A DEEPENING UPPER TROUGH SITUATED ALONG THE PACIFIC NORTHWEST COASTLINE. THIS TROUGH IS DEEPENING IN RESPONSE TO AN EMBEDDED LOW DIGGING ALONG THE BRITCOL COASTLINE. AS THIS WAVE CONTINUES NORTHWARD TODAY AND IS COUPLED WITH DAYTIME HEATING ON THE HIGHER TERRAIN.
724 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL REMAIN OVER THE OHIO VALLEY THROUGH LATE WEDNESDAY.
/ISSUED 410 AM EDT TUE SEP 1 2015/ A GENERALLY UNREMARKABLE PATTERN OVER THE FORECAST PERIOD, WITH HIGH PRESSURE TO THE NORTH AND THE WESTERN EDGE OF AN UPPER LEVEL RIDGE. THIS WILL KEEP THE LOW LEVEL FLOW OUT OF THE EAST TO SOUTHEAST FOR THE NEXT SEVERAL DAYS.
653 AM CDT TUE SEP 1 2015 UPPER MIDWEST UNDER WARM AND A BIT MUGGY CONDITIONS AT 2 AM DUE TO SOUTH WINDS AND UPPER RIDGING. AREA TEMPERATURES MOSTLY IN THE LOWER 70S WITH A LIGHT SOUTH WIND. UPSTREAM ENERGY SHOWS RIDGING TO STAY IN PLACE FOR AT LEAST THE NEXT FEW DAYS WITH LITTLE OR NO CHANGE. AREA DEWPOINTS AROUND 70 DEGREES WILL ALLOW FOR HEAT INDICES TO RISE INTO THE LOWER TO MIDDLE 90S FOR SEVERAL HOURS TODAY.
THERE IS AN UPPER LEVEL LOW OVER TX AND LA THAT WILL STREAM CLOUDS INTO THE REGION TODAY AND AN EMBEDDED LOW ACROSS INDIANA. THERE IS A BROAD RIDGE OF HIGH PRESSURE ACROSS THE SOUTHEAST COAST. HIGH PRESSURE WILL BUILD TODAY ALLOWING FOR A DRY FORECAST AND TEMPS TO WARM UP INTO THE UPPER 80S/LOWER 90S.
THE INVERTED TROUGH OVER THE EASTERN GULF IS STILL HANGING ON AND WILL REMAIN A FOCUS FOR SHOWERS AND STORMS THERE. THE ATLC RIDGE AXIS WILL NOSE WESTWARD INTO THE CENTRAL FL PENINSULA OVER THE NEXT 24 HOURS WITH A WEAK PRESSURE GRADIENT RESULTING. LOCAL MODELS SEEM SLUGGISH ON COVERAGE LATE TODAY LIKELY A RESULT OF THE DRIER/WARMER AIR. ATLC RIDGE AXIS NOSING INTO THE AREA OVER THE NEXT 24 HOURS.
A WEAK UPPER TROUGH CONTINUES TO RESIDE ESSENTIALLY OVER THE OHIO VALLEY AS AN AMPLIFYING BUILDS OVER THE CENTRAL GREAT LAKES. AS THIS UPPER RIDGE CONTINUES TO AMPLIFY OVER THE NEXT 24 HOURS. THE UPPER TROUGH WILL GRADUALLY WEAKEN AND LOSE DEFINITION AS THE BASE OF IT TRANSITS THE SOUTHERN FRINGE OF THE CWA. THOUGH SOME LOW END POPS WERE CARRIED ALONG THE RIDGES AS PER LIGHT OROGRAPIC SUPPORT WITH SLIGHT NUMBERS UNDER THE WEAKENING UPPER WAVE IN OHIO. AS THE LOW OPENS AND CROSSES THE FORECAST AREA WEDNESDAY. ALTHOUGH THE BROAD UPPER-RIDGE REMAINS.
947 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL BUILD INTO THE MID-ATLANTIC AREA THROUGH MIDWEEK.
956 AM CDT TUE SEP 1 2015 WELL-DEFINED UPPER LOW. WITH THE LOW ONLY SLOWLY DRIFTING EAST TODAY. TEMPERATURES EXPECTED TO REACH INTO THE LOWER 90S OVER THE WESTERN CWA. LATEST UPPER AIR ANALYSIS CONTINUES TO SHOW A LARGE RIDGE OF HIGH PRESSURE EXTENDING FROM THE SOUTHERN PLAINS TO THE EASTERN GREAT LAKES. HOWEVER A WEAKNESS IN THE RIDGE IS NOTED FROM INDIANA SOUTHWESTWARD TO THE OZARKS. AM EXPECTING A HOT AND DRY DAY ACROSS THE BOARD WITH HIGH TEMPERATURES CLIMBING INTO THE LOWER 90S.
828 AM EDT TUE SEP 1 2015 A TROUGH OF LOW PRESSURE. A WEAK TROUGH RESIDES JUST OFFSHORE THE GA/SC COAST. A BROKEN BAND OF PRECIP IS BEGINNING TO DEVELOP BETWEEN THESE TWO TROUGHS ACROSS THE LOCAL AREA. AS THE TROUGH IN THE GULF MOVES SLOWLY NORTH DURING THE DAY. NAM CONTINUES TO NUDGE THE COMPLEX ASSOCIATED WITH THE GULF TROUGH INTO INLAND SECTIONS OF NE FL THIS AFTN WHILE MOST HIGH RESOLUTION MODELS DEPICT THE COMPLEX ITSELF TO REMAIN TO THE WEST OF THE AREA WITH MORE OF A BROKEN BAND OF PRECIP MOVING SOUTH TO NORTH ACROSS THE REGION LATE MORNING AND AFTN.
Beginning to see some mid-level clouds developing over the northern half of the region, and the upper low shows up real nice on water vapor imagery over east, central Indiana. The NMM and ARW WRF runs develop some convection closer to the upper low before daybreak and then build it south down the Wabash Valley and then southwest through southern Illinois through the morning. The remainder of the short term portion of the forecast is dry, with high pressure at the surface and aloft through the period.
DEWPOINTS MAY DROP BACK INTO THE L60S AND PERHAPS U50S IN THE HIGHEST ELEVS THIS AFTN. SOUTH OF THE LOWER LAKES. A SLOW MOVING CLOSED LOW/UPPER LEVEL WAVE CURRENTLY INVOF IL/IN WILL PUSH SLOWLY EWD ON DAY 1 ALONG OR JUST NORTH OF THE OH RIVER. THE HIGHEST AREAL AVG POPS /40-50 PCT/ OVER THE NEXT 72 HRS WERE PAINTED IN FOR DAY 2/WED ACROSS THE SOUTH CENTRAL MTNS.
1031 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL CROSS THE REGION TODAY. A COLD FRONT WILL APPROACH LATER WEDNESDAY.
Temperatures continue to be a few degrees warmer than yesterday morning for most locations, but an approaching upper level trough will bring cooler afternoon temperatures. Highs today will be in the lower 90s across the Valley with sunny skies. For this evening and into Wednesday, a strengthening Delta Breeze will bring cooler temperatures into the Delta, southern Sacramento Valley and northern San Joaquin Valley. Models appear to be trending towards a little deeper trough later in the week, though the 12z GFS has backed off from the 06z run.
SO THE HIGHEST POPS OVER THE RURAL INTERIOR STILL LOOK GOOD AND NO SIGNIFICANT CHANGES WILL BE MADE TO THE FORECAST THIS MORNING. /ISSUED 410 AM EDT TUE SEP 1 2015/ A GENERALLY UNREMARKABLE PATTERN OVER THE FORECAST PERIOD, WITH HIGH PRESSURE TO THE NORTH AND THE WESTERN EDGE OF AN UPPER LEVEL RIDGE. THIS WILL KEEP THE LOW LEVEL FLOW OUT OF THE EAST TO SOUTHEAST FOR THE NEXT SEVERAL DAYS.
702 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL SIT OVER THE REGION FOR THE NEXT COUPLE OF DAYS BRINGING DRY WEATHER AND ABOVE NORMAL TEMPERATURES.
925 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL REMAIN OVER THE OHIO VALLEY THROUGH LATE WEDNESDAY.
927 AM EDT TUE SEP 1 2015 AN UPPER LEVEL LOW WILL MOVE SLOWLY EAST ACROSS THE AREA THROUGH WEDNESDAY.
WITH ONSET OF SAME OCCURRING LATER AT KDHT DUE TO PROXIMITY OF SURFACE TROF. WITH THE UPPER JET HAVING SHIFTED FARTHER SOUTH ALONG THE CANADIAN BORDER/NORTHERN TIER STATES AND STRONGER UPPER-LEVEL TROUGHS/LOWS BEGINNING TO MOVE ACROSS THIS PART OF THE COUNTRY. THE PANHANDLES WILL GENERALLY STAY IN WEAK WEST/SOUTHWEST FLOW ALOFT ON THE WESTERN PERIPHERY OF THE UPPER RIDGE.
/ISSUED 337 AM CDT TUE SEP 1 2015/ An upper ridge will dominate the weather across eastern Oklahoma and northwest Arkansas at least through the Labor Day weekend. A persistent weakness underneath the ridge may result in isolated diurnal convection over the higher terrain areas of southeast Oklahoma and western Arkansas the next few days but daily coverage will likely remain below 10 percent.
959 AM EDT TUE SEP 1 2015 HIGH PRESSURE IN CONTROL THIS WEEK. BROAD HIGH PRESSURE OVERHEAD REMAINS IN CONTROL PROVIDING MOSTLY DRY TUESDAY AND TUESDAY NIGHT. THE EXCEPTION WILL BE AFTERNOON SHOWERS OR STORMS DEVELOPING MAINLY OVER THE HIGHER ELEVATIONS DUE TO DIURNAL HEATING. TEMPERATURES WILL BE WARMER THIS AFTERNOON WITH SOME PLACES REACHING 90 DEGREES OVER THE LOWLANDS. WEAK HIGH PRESSURE WILL BE ACROSS THE AREA WITH AN UPPER LEVEL LOW MEANDERING OVER OHIO. STILL DON/T SEE ANY TYPE OF FOCUSING MECHANISM AS HIGH PRESSURE REMAINS ACROSS THE SOUTHEAST. CONTINUED WITH THE WARMER SIZE OF GUIDANCE DUE TO THE DRY CONDITIONS AND DRY GROUND.
THIS MORNING'S KBMX 12Z SOUNDING PRESENTS A GOOD AMOUNT OF DRY AND WARMER AIR ALOFT. LOOK FOR LIGHT WINDS UNDER THE GENERAL INFLUENCE OF RIDGING AND SOME FAIR WEATHER CUMULUS AROUND TODAY AND TONIGHT ALONG WITH SOME THIN CIRRUS.
1020 AM EDT TUE SEP 1 2015 HIGH PRESSURE WILL REMAIN IN PLACE ACROSS THE REGION THROUGH THE WEEK.
A weak area of low pressure is located west of Tampa this morning, which is expected to lift northward through the day. The highest rain chances around 70% will be across the southeast big bend today within the tropical moisture plume.
1242 PM EDT TUE SEP 1 2015 BROAD HIGH PRESSURE WILL BE OVER THE REGION THROUGH THE UPCOMING WEEK. A TROUGH OF LOW PRESSURE WILL DEVELOP ACROSS THE PIEDMONT OF NORTH CAROLINA MID TO LATE WEEK.
521 AM CST WED DEC 2 2015 ALOFT: WV IMAGERY SHOWED THE LOW THAT DOES NOT WANT TO RELEASE ITS GRIP OVER THE REGION OVER WI. THIS LOW WILL FINALLY BECOME MORE MOBILE TODAY AS THE FLOW BECOMES PROGRESSIVE. A RIDGE WAS OVER THE WRN USA AND SUBSTANTIAL HEIGHT RISES (150 M) WERE OCCURRING HERE OVER THE PLAINS. BASED ON THIS HIGHS WERE RAISED 3-6F. SPLIT FLOW PATTERN WILL CONTINUE AND HELP KEEP COLDER TEMPERATURES TO THE NORTH AS A PROMINENT LONGWAVE TROUGH MOVES ONTO THE WEST COAST.
ISSUED BY NATIONAL WEATHER SERVICE ALBANY NY 958 AM EST WED DEC 2 2015 A WAVE OF LOW PRESSURE WILL MOVE NORTHEAST FROM WESTERN PENNSYLVANIA LATE THIS MORNING INTO THIS AFTERNOON. RAIN WILL CHANGE TO SNOW OVER THE HIGHER ELEVATIONS OF THE ADIRONDACKS AND GREEN MOUNTAINS AFTER MIDNIGHT TONIGHT. RAIN AND SNOW SHOWERS WILL BE OVER THE NORTH COUNTRY ON THURSDAY AS AN UPPER LOW MOVES ACROSS THE REGION.
CURRENTLY THIS MORNING WE HAVE A COLD FRONT MOVING ACROSS THE SOUTHEAST PORTIONS OF CENTRAL ALABAMA STRETCHING FROM AROUND AUBURN TO NEAR TROY. COOLER TEMPERATURES AND A WIND SHIFT ARE NOTED DIRECTLY BEHIND THE FRONT. THE LOWER DEW POINTS ARE JUST BARELY MAKING IT INTO THE FAR NORTHWEST PART OF THE STATE WHERE THE END OF THE RAIN LINE EXTENDS FROM AROUND RUSSELLVILE AL. WITH NORTHERLY FLOW ACROSS ALABAMA TONIGHT THROUGH MUCH OF THURSDAY TO BUILD IN A MUCH COOLER AIR MASS IN PLACE OVER CENTRAL ALABAMA.
THE ACTUAL COLD FRONT HAS ADVANCED WELL SOUTHEAST OF THE LOWER MS VALLEY AT THIS POINT.
2 AREAS OF SCATTERED SHOWERS AHEAD AND ALONG AN APPROACHING COLD FRONT CONTINUE TO PUSH QUICKLY EASTWARD THIS MORNING AS THE AFOREMENTIONED COLD FRONT CONTINUES TO MOVE EASTWARD OVER WESTERN SECTIONS OF THE FORECAST AREA EARLY THIS MORNING. FOR LATE TONIGHT AND EARLY THU A MODERATE OFFSHORE DEVELOPS ALLOWING GOOD CLEARING IN THE LOWER TO MID LEVELS WITH RESIDUAL HIGH CLOUDS LINGERING THROUGH SUNRISE THU. LOWS TONIGHT WILL RANGE FROM THE MID 30S TO LOWER 40S FOR MOST INLAND AREAS AND THE LOWER TO MIDDLE 40S CLOSE TO THE COAST.
404 AM CST WED DEC 2 2015 CURRENTLY THIS MORNING WE HAVE A COLD FRONT MOVING ACROSS THE SOUTHEAST PORTIONS OF CENTRAL ALABAMA STRETCHING FROM AROUND AUBURN TO NEAR TROY. COOLER TEMPERATURES AND A WIND SHIFT ARE NOTED DIRECTLY BEHIND THE FRONT. THE LOWER DEW POINTS ARE JUST BARELY MAKING IT INTO THE FAR NORTHWEST PART OF THE STATE WHERE THE END OF THE RAIN LINE EXTENDS FROM AROUND RUSSELLVILE AL. WITH NORTHERLY FLOW ACROSS ALABAMA TONIGHT THROUGH MUCH OF THURSDAY TO BUILD IN A MUCH COOLER AIR MASS IN PLACE OVER CENTRAL ALABAMA.
A TROUGH OF LOW PRESSURE WILL PASS OVERHEAD THURSDAY BRINGING INCREASING CLOUDS. THERE IS A 576 MB RIDGE OVERHEAD. A TROF WILL MOVE THROUGH THE AREA THURSDAY. IT IS A PRETTY WEAK TROF AND WILL ONLY BRING PARTLY CLOUDY SKIES AND COOLER CONDITIONS TO AREAS SOUTH OF POINT CONCEPTION. NORTH FLOW SETS UP AFTER THE TROF AND IT WILL CREATE UPSLOPE CLOUDS ALONG WITH A CHC OF SHOWERS ON THE NORTH SLOPES THURSDAY NIGHT. COOLER BUT BUT NOT AS COOL AS PREVIOUSLY THOUGHT DUE TO THE WEAKNESS OF THE FRONT.
TO THE LOWER 40S ACROSS NORTHWEST OHIO. INITIAL BOUNDARY LAYER WARM TW ALOFT IN PRE SECONDARY FRONTAL PRECIP SWATCH PLUS ADDITIVE COMPONENT OF WARM MARINE ENVIRONMENT TO PROVIDE INITIAL MIX SHRA/SHSN BEFORE LATE MORNING/EARLY AFTERNOON SWEEP OF LEADING EDGE OF LOW LEVEL THERMAL TROF WHICH SHOULD DECISIVELY CHANGE PTYPE TO FROZEN. UPPER LOW WILL BE PULLING AWAY FROM THE REGION ON THURSDAY. UNCERTAINTY GROWS TOWARD END OF PERIOD WITH MOVEMENT OF THIS LOW SO PERSISTENCE WARRANTED WITH POPS REMAINING BELOW 15 PERCENT FOR NOW.
OTHERWISE WARMER TEMPS. NEXT COLD FRONT ARRIVES THURSDAY MORNING IN THE NORTH BAY.
634 AM EST WED DEC 2 2015 A WAVE OF LOW PRESSURE WILL MOVE NORTHEAST FROM THE MID ATLANTIC STATES TODAY AND WILL BRING MORE RAIN TO THE NORTH COUNTRY TODAY AND TONIGHT. RAIN WILL CHANGE TO SNOW OVER THE HIGHER ELEVATIONS OF THE ADIRONDACKS AND GREEN MOUNTAINS AFTER MIDNIGHT TONIGHT. RAIN AND SNOW SHOWERS WILL BE OVER THE NORTH COUNTRY ON THURSDAY AS AN UPPER LOW MOVES ACROSS THE REGION.
AS DRY HIGH PRESSURE BEGINS TO MOVE INTO MID TN. A WEAK UPPER TROUGH WILL SWING ACROSS THE AREA TONIGHT WITH SCT- BKN CLOUDS.
NORTH WINDS WILL OCCASIONALLY BE GUSTY AS HIGH TEMPERATURES RISE INTO THE LOWER TO MID 60S ALMOST AREA WIDE. LOW TEMPERATURES ARE EXPECTED TO REMAIN ABOVE FREEZING.
522 AM CST WED DEC 2 2015 The large upper low currently centered over the upper Midwest will continue on its slow journey eastward. Abundant cloud cover remains across the region associated with the low. With the clouds and weak cold air advection, temperatures will be a few degrees cooler today, with readings only reaching the upper 30s to middle 40s.
AXIS OF THE UPPER-LEVEL TROUGH SWINGS THROUGH LATE THIS EVENING. THE CLOSED LOW WILL BEGIN TO FILL AND BECOME AN OPEN WAVE. CURRENT SPOKE OF MOISTURE PRODUCING LIGHT SNOW SHOWERS THROUGH ILLINOIS WILL PIVOT WITH THE LOW. IT IS HERE AND IN THE RIDGES OF PA/MD WHERE THE RESIDENCE TIME WILL BE LONG ENOUGH FOR ACCUMULATING SNOWFALL. TAX SHORT WAVE AXIS ASSOCIATED WITH H500 CLOSED LOW WILL HAVE SWEPT INTO THE RIDGES BY 12Z THURSDAY. ESPECIALLY NORTH OF PIT AND ALONG THE RIDGES. PRECIPITATION COVERAGE WILL CONTINUE TO WANE THROUGH THE AFTERNOON AS H850 THERMAL TROUGH PASSES AND MOISTURE THINS. HIGH PRESSURE THEN NOSES IN FROM THE OHIO VALLEY.
LOWS CLOUDS REMAIN OVER THE PARK RAPIDS AND WADENA AREAS WHICH HELD TEMPERATURES IN THE LOW 3OS. THE UPPER LOW HAS FINALLY STARTED TO PULL EAST.
835 AM MST WED DEC 2 2015 HIGH PRESSURE RIDGING BUILDING INTO THE DESERT SOUTHWEST FROM THE WEST WILL BRING MAINLY SUNNY SKIES AND A WARMING TREND TO THE REGION THROUGH THE REST OF THE WORK WEEK.
547 AM CST WED DEC 2 2015 AT H5 UPPER CUTOFF CLOSED LOW HAS MOVED FROM SIOUX FALLS YESTERDAY TO SOUTHERN WISCONSIN THIS MORNING. WEAK RIDGING OVER THE EASTERN CONUS AHEAD OF CLOSED CUTOFF LOW. LOW OVER THE GULF OF ALASKA WITH RIDGE THROUGH WESTERN CONUS.
632 AM EST WED DEC 2 2015 A WAVE OF LOW PRESSURE WILL MOVE NORTHEAST FROM THE MID ATLANTIC STATES TODAY AND WILL BRING MORE RAIN TO THE NORTH COUNTRY TODAY AND TONIGHT. RAIN WILL CHANGE TO SNOW OVER THE HIGHER ELEVATIONS OF THE ADIRONDACKS AND GREEN MOUNTAINS AFTER MIDNIGHT TONIGHT. RAIN AND SNOW SHOWERS WILL BE OVER THE NORTH COUNTRY ON THURSDAY AS AN UPPER LOW MOVES ACROSS THE REGION.
TEMPERATURES ARE A COUPLE OF DEGREES COOLER THAN EXPECTED.
856 AM EST WED DEC 2 2015 A COLD FRONT IS ENTERING WESTERN GA. WITH SHOWERS ENTERING FAR INTERIOR SE GA ALONG A PRE-FRONTAL TROUGH. THE COLD FRONT WILL ENTER SE GA THIS AFTN. SOUTHERLY WINDS AROUND 10 KNOTS TODAY WILL SHIFT TO THE NORTHWEST AND INCREASE TONIGHT BEHIND A COLD FRONT.
VFR conditions will persist thru the forecast in dry NW flow mid level in wake of trof this am. /issued 337 AM CST WED DEC 2 2015/ An upper level trough is over the Upper Midwest with westerly winds aloft over the CWA. Temperatures today are expected to be a few degrees cooler than yesterday with highs mostly in the mid to upper 50s across the area.
THE SUBTROPICAL RIDGE REMAINS ACROSS THE FLORIDA PENINSULA. A WEAK HIGH PRESSURE RIDGE OVER THE FLORIDA PENINSULA WILL RETREAT EASTWARD THIS AFTERNOON AND TONIGHT. A COLD FRONT WILL MOVE SOUTHEASTWARD ACROSS THE GULF OF MEXICO THURSDAY.
A HIGH PRESSURE RIDGE MOVING SLOWLY INTO ARIZONA FROM THE WEST WILL BRING A WARMING TREND OVER THE NEXT FEW DAYS.