Aikyam-Lab/Synoptic-Bench huggingface dataset:
AN UPPER TROUGH WILL MOVE ACROSS THE GREAT VALLEY DURING THE PERIOD BRINGING A FEW MORE SHOWERS TONIGHT BEFORE ENDING. IT MAY EVEN DROP TO LIFR AT TRI LATE TONIGHT AS THE LOW LEVELS BECOME SATURATED IN THE COOL NIGHT AIR.
1131 PM CDT TUE SEP 29 2015 The upper level trough that was moving to the west and brought showers to the eastern Ozarks today will begin to shift back to the east as the upper level flow catches it and moves it east. This will occur as a cold front approaches the region and moves through the area into tomorrow. As a result, high temperatures tomorrow are only expected to rise into the lower 70s even after the low overnight stratus burns off and the comes out for tomorrow afternoon. The forecast for the remainder of the week will feature cooler, more fall like weather as the upper level pattern transitions to northwest flow aloft and additional Canadian air filters south across the plains and into the Ozarks.
712 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH EAST ACROSS THE REGION THIS EVENING.
959 PM EDT TUE SEP 29 2015 A COLD FRONT WILL MOVE EAST TONIGHT.
THOUGH WITH AN UPPER TROUGH ACROSS THE EASTERN GREAT LAKES REGION SHOWER CHANCES WILL CONTINUE.
942 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH ACROSS THE STATE TONIGHT.
1043 PM EDT TUE SEP 29 2015 A SLOW MOVING COLD FRONT WILL HELP TO GENERATE A WIDESPREAD WITH THE RAIN BEING HEAVY AT TIMES FROM THE FINGER LAKES AND SOUTHERN TIER EAST TO THE COAST.
1214 AM EDT WED SEP 30 2015 UPPER AIR PATTERN CONSISTS OF A 500 MB RIDGE OVER THE DESERT SW AND THE ROCKIES AND A CLOSED LOW OFF THE CA COAST AND A DEEP AND BROAD TROUGH OVER THE EASTERN HALF OF THE U. THE RIDGE BUILDS NORTHWARD INTO THE ROCKIES WHILE THE TROUGH BROADENS A BIT FURTHER OVER THE EASTERN HALF OF THE U.
HIGH PRESSURE WILL CONTINUE TO DRIFT EASTWARD TONIGHT. WITH THE REGION BECOMING SITUATED BETWEEN THE HIGH TO THE EAST AND A LOW PRESSURE TROUGH TO THE WEST.
02Z/9PM CDT SURFACE MAP SHOWED A COLD FRONT DROPPING INTO THE SOUTHERN MO OZARKS. HIGHLY AMPLIFIED TROUGH CURRENTLY ORIENTED ALONG THE MISSISSIPPI RIVER WILL GRADUALLY SHIFT TO THE EAST. BY MIDDAY TOMORROW THE TROUGH AXIS SHOULD BE EAST OF THE TENNESSEE RIVER.
A 500 MB TROUGH WAS ORIENTED NE-SW WITH THE TROUGH AXIS NOW TO THE EAST OF SE TX.
HIGH PRESSURE AND STRONG WESTERLY FLOW ALOFT CONTINUE TO PROVIDE DRY AND STABLE CONDITIONS. HIGH PRESSURE ALOFT CONTINUES TO PROVIDE DRY AND STABLE CONDITIONS.
1119 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH ACROSS THE STATE TONIGHT.
HIGH PRESSURE BUILDING INTO THE CWA TONIGHT BEHIND THE EXITING STORM SYSTEM. DEWPOINTS HAVE DROPPED SIGNIFICANTLY IN THE LAST FEW HOURS WHERE CLOUDS HAVE CLEARED FROM THE LOW 50S INTO THE UPPER 30S. ALSO WITH THE HIGH MOISTURE AMOUNTS IN THE GROUND. EASTERLY FLOW OFF HIGH PRESSURE IN SOUTHEAST CANADA WILL PUMP A PERSISTENT SUPPLY OF COOL AND DRY AIR INTO THE STATE. BUT THE GENERAL DRY PATTERN LOOKS TO CHANGE LITTLE WITH A SLIGHT WARMING TREND EARLY IN THE WEEK AS THE RIDGE TRIES TO SLIDE EAST.
FOR 00Z FORECASTS ISOLATED TO SCATTERED PATCHY LIGHT RAIN/SHOWERS WILL CONTINUE THROUGH THE EVENING AND OVERNIGHT AS UPPER LOW BASED ON LATEST WATER VAPOR LOOP IS CENTERED OVER BOOTHEEL OF MISSOURI WITH TROF AXIS RUNNING DOWN ALONG MISSISSIPPI RIVER IN LATEST RAP40. WINDS IN THE LOWER LEVELS OF THE TROPOSPHERE HAVE ALREADY TURNED NORTHWEST WITH PRECIP MOVING NORTHEAST TO SOUTHWEST OVER THE WEST HALF OF TENNESSEE AND SOUTHWEST TO NORTHEAST OVER THE EAST HALF.
COLD FRONT CONTINUES TO APPROACH THE NORTHERN BORDER OF THE STATE AND WILL MOVE THROUGH DURING THE OVERNIGHT HOURS. MUCH DRIER AND COOLER AIR MASS EXPECTED TO FOLLOW THE FRONT WITH A TASTE OF FALL IN THE AIR. THE COLD FRONT IN MISSOURI WILL MOVE THROUGH ARKANSAS BY MORNING.
944 PM CDT TUE SEP 29 2015 A cold front is making steady southward progress across northeast Oklahoma and far northwest Arkansas this evening.
1200 AM CDT WED SEP 30 2015 DRY AND MILD CONDITIONS EXPECTED THROUGH THE PERIOD AS HIGH PRESSURE RIDGE REMAINS ANCHORED FROM THE GREAT LAKES INTO THE LOWER MISSOURI VALLEY.
640 PM CDT TUE SEP 29 2015 STRONG HUDSON BAY LOW CONTINUES TO DEVELOP SHOWERS AND THUNDERSTORMS ALONG A COLD FRONT FROM THE NORTHEAST CONUS INTO THE CENTRAL PLAINS. TROUGH FROM THE HUDSON BAY LOW INTO THE SOUTHEAST CONUS WITH UNSETTLED WEATHER FROM MISSISSIPPI INTO NORTHERN NEW YORK. WEAK RIDGING OVER THE WESTERN CONUS WITH CLOSED LOW OFF THE CALIFORNIA COAST. MOISTURE ADVECTION THROUGH THE SOUTHERN PLAINS AND UPPER CLOSED LOW APPROACHING FROM THE WEST.
OVERNIGHT LOWS WILL RANGE FROM THE LOW TO MID 70S. AN UPPER LEVEL TROUGH EXTENDING FROM THE EASTERN U. SOMEWHAT UNSETTLED FORECAST THRU LATE WEEK UNTIL TS JOAQUIN MAKES ITS NORTHWARD MOVE AND KICKED BY THE UPPER LOW.
632 PM CDT TUE SEP 29 2015 COLD FRONT IS CURRENTLY CROSSING THE KANSAS BORDER INTO NORTHERN OKLAHOMA AND WILL CONTINUE TO MOVE SOUTH. /ISSUED 341 PM CDT TUE SEP 29 2015/ HIGH PRESSURE CENTERED NEAR DULUTH MINNESOTA THIS AFTERNOON WILL EXPAND AND STRENGTHEN OVER THE NEXT SEVERAL DAYS. THE SOUTHERN EDGE OF THE AIRMASS IS MARKED BY A COLD FRONT THAT EXTENDS FROM THE CENTRAL OKLAHOMA PANHANDLE ACROSS SOUTHERN KANSAS. THE CURRENT CONFIGURATION OF THE HIGH PRESSURE AREA. AS THE COOLER AIR GRADUALLY DEEPENS ACROSS THE AREA. AND A SECONDARY FRONT BRINGS IN STILL COOLER AND DRIER AIR.
1032 PM CDT TUE SEP 29 2015 A BEAUTIFUL DAY ACROSS THE AREA AS COOL DRY HIGH PRESSURE SETTLES IN. SLIGHTLY COOLER AIR WILL WRAP WESTWARD OVERNIGHT SO HIGHS LIKELY TO BE SIMILAR TO TODAY OR JUST A TOUCH LOWER. A LARGE AREA OF HIGH PRESSURE OVER HUDSON BAY WILL CONTINUE TO PUMP DRIER BOUNDARY AND LOW LVL AIR SOUTHWEST INTO THE AREA THROUGH THE REST OF THE WORK WEEK.
738 PM EDT TUE SEP 29 2015 UPPER AIR PATTERN CONSISTS OF A 500 MB RIDGE OVER THE DESERT SW AND THE ROCKIES AND A CLOSED LOW OFF THE CA COAST AND A DEEP AND BROAD TROUGH OVER THE EASTERN HALF OF THE U. THE RIDGE BUILDS NORTHWARD INTO THE ROCKIES WHILE THE TROUGH BROADENS A BIT FURTHER OVER THE EASTERN HALF OF THE U.
1145 PM CDT TUE SEP 29 2015 CLEARING BEHIND A COLD FRONT WAS SLOWLY MAKING ITS WAY INTO THE AREA TODAY. THE RAIN OF EARLIER HAD ALL BUT CEASED THIS AFTERNOON AS DRIER COOLER AIR RUSHED INTO THE AREA AS HIGH PRESSURE BUILT IN FROM THE NORTH.
HIGH PRESSURE CONTINUES TO DOMINATE THE AREA WITH DRY CONDITIONS AND MOSTLY CLEAR SKIES TONIGHT. FORECAST AREA WILL BE UNDER THE INFLUENCE OF AN UPPER LEVEL RIDGE OF HIGH PRESSURE THROUGH WEDNESDAY FOR CONTINUED WARM AND DRY CONDITIONS.
/issued 140 PM CDT TUE SEP 29 2015/ Upper ridge centered over Baja will continue to extend across the area most of the week.
602 PM CDT TUE SEP 29 2015 DRY AND MILD CONDITIONS EXPECTED THROUGH THE PERIOD AS HIGH PRESSURE RIDGE REMAINS ANCHORED FROM THE GREAT LAKES INTO THE LOWER MISSOURI VALLEY.
WITH WEAK DENVER CYCLONE IN PLACE. SHOULD SEE LOW CLOUDS AND FOG SPILL BACK TO THE NORTHWEST AROUND THE CYCLONE. INCREASED MOISTURE BEHIND A COLD FRONT HAS BROUGHT SCATTERED THUNDERSTORMS TO THE FOOTHILLS AND AREAS MAINLY SOUTH OF I-70. MODERATE SHEAR AND A UNIDIRECTIONAL HODOGRAPH COUPLED WITH THE MOISTURE LEVELS WILL HELP TO BRING STRONG STORMS TO THE LOWER FOOTHILLS AND SOUTH OF DENVER. FURTHER TO THE NORTH AND EAST A LOWER CLOUD DECK AND TEMPERATURES WILL HELP TO KEEP AWAY ANY INSTABILITY IN THE LOWER LEVELS. OTHERWISE MOSTLY TO PARTLY CLOUDY SKIES WITH BRING LOW TEMPERATURES IN THE LOWER TO MID 50S FOR THE PLAINS AND 30S FOR THE MOUNTAINS. INCREASING MOISTURE AND UPPER LEVEL FORCING WILL COMBINE WITH UPSLOPE FLOW TO HELP WITH DEVELOPMENT ALONG THE HIGHER TERRAIN.
VFR CONDITIONS WILL PREVAIL THROUGH THE OVERNIGHT AND INTO WEDNESDAY AS DRY AIR AND BUILDING HIGH PRESSURE OCCURS. CONVECTION HAS BEEN VERY LIMITED SO FAR THIS AFTERNOON AS FORCING WITH UPPER LEVEL TROUGH MOVES AWAY FROM EASTERN AREAS OF THE CWA. UPPER LEVEL RIDGING WILL BUILD INTO THE AREA FROM THE WEST ON WEDNESDAY WITH DRY CONDITIONS.
616 PM CDT TUE SEP 29 2015 CLEARING BEHIND A COLD FRONT WAS SLOWLY MAKING ITS WAY INTO THE AREA TODAY. THE RAIN OF EARLIER HAD ALL BUT CEASED THIS AFTERNOON AS DRIER COOLER AIR RUSHED INTO THE AREA AS HIGH PRESSURE BUILT IN FROM THE NORTH.
622 PM CDT TUE SEP 29 2015 A BEAUTIFUL DAY ACROSS THE AREA AS COOL DRY HIGH PRESSURE SETTLES IN. SLIGHTLY COOLER AIR WILL WRAP WESTWARD OVERNIGHT SO HIGHS LIKELY TO BE SIMILAR TO TODAY OR JUST A TOUCH LOWER. A LARGE AREA OF HIGH PRESSURE OVER HUDSON BAY WILL CONTINUE TO PUMP DRIER BOUNDARY AND LOW LVL AIR SOUTHWEST INTO THE AREA THROUGH THE REST OF THE WORK WEEK.
958 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH EAST ACROSS THE REGION THIS EVENING.
BUT WINDS HAVE SHIFTED FROM THE NW-NE IN THE LOW-LVLS (GENERALLY BELOW ~2KFT).
LATEST MODEL GUIDANCE DEPICTS A NET DECREASE IN ATMOSPHERIC MSTR OVER THE NEXT 24HRS AS THE UPPER TROF AXIS OVER THE REGION DEPARTS TO THE EAST. /ISSUED 410 PM CDT TUE SEP 29 2015/ THE LARGE UPPER LVL TROF HAS BEEN SLOWLY BEGINNING TO LIFT NE OVER THE NW GULF COAST BASED ON LATEST UA ANALYSIS AND WV IMAGERY. THE UPR TROF IS EXPECTED TO CONTINUE MOVING EAST OVERNIGHT INTO WED. FLOW ALOFT WILL BECOME MORE NLY WITH SLIGHTLY DRIER AIR BEGINNING TO FILTER IN BEHIND THE TROF ALTHOUGH ENOUGH LOW LVL MOISTURE WILL EXISTS FOR A FEW ISLTD SHOWERS WED AFTN. DEEPENING IT EAST OF THE LOWER MS.
1206 AM EDT WED SEP 30 2015 A COLD FRONT WILL PUSH EAST ACROSS THE REGION THIS EVENING.
Lows will range from the lower 70s (NW) to middle 70s (SE).
HIGH PRESSURE ALOFT WILL PREVAIL OVER THE AREA OVERNIGHT.
Upper ridge building northeast into the Southern Rockies leading to modest northwest flow with a weak wave rounding the ridge spreading light precipitation into western portions of Kansas. Cold air advection and lower cloud behind the cold front keeping some temps in the 60s. Surface ridging will continue to build into the area tonight into Wednesday with northeast winds keeping at least modest cold air advection going, so despite more sunshine, expect highs to be near to slightly below today's values. By Wednesday night, a mid-level ridge will be centered across the southwestern U. At the surface, high pressure will stretch from the Central Plains toward the Great Lakes region.
809 PM EDT TUE SEP 29 2015 A COLD FRONT AND ASSOCIATED WAVE OF LOW PRESSURE WILL MOVE EAST TONIGHT.
/ISSUED 632 PM CDT TUE SEP 29 2015/ COLD FRONT IS CURRENTLY CROSSING THE KANSAS BORDER INTO NORTHERN OKLAHOMA AND WILL CONTINUE TO MOVE SOUTH. /ISSUED 341 PM CDT TUE SEP 29 2015/ HIGH PRESSURE CENTERED NEAR DULUTH MINNESOTA THIS AFTERNOON WILL EXPAND AND STRENGTHEN OVER THE NEXT SEVERAL DAYS. THE SOUTHERN EDGE OF THE AIRMASS IS MARKED BY A COLD FRONT THAT EXTENDS FROM THE CENTRAL OKLAHOMA PANHANDLE ACROSS SOUTHERN KANSAS. THE CURRENT CONFIGURATION OF THE HIGH PRESSURE AREA. AS THE COOLER AIR GRADUALLY DEEPENS ACROSS THE AREA. AND A SECONDARY FRONT BRINGS IN STILL COOLER AND DRIER AIR.
722 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH ACROSS THE STATE TONIGHT.
1138 PM CDT TUE SEP 29 2015 STRONG HUDSON BAY LOW CONTINUES TO DEVELOP SHOWERS AND THUNDERSTORMS ALONG A COLD FRONT FROM THE NORTHEAST CONUS INTO THE CENTRAL PLAINS. TROUGH FROM THE HUDSON BAY LOW INTO THE SOUTHEAST CONUS WITH UNSETTLED WEATHER FROM MISSISSIPPI INTO NORTHERN NEW YORK. WEAK RIDGING OVER THE WESTERN CONUS WITH CLOSED LOW OFF THE CALIFORNIA COAST. MOISTURE ADVECTION THROUGH THE SOUTHERN PLAINS AND UPPER CLOSED LOW APPROACHING FROM THE WEST.
COASTAL FLOOD ADVISORY REMAINS IN EFFECT THROUGH NOON EVENING SURFACE ANALYSIS DEPICTS LOW PRESSURE (1006 MILLIBARS) OVER THE FLORIDA PANHANDLE. A TROUGH IS DIGGING INTO THE SOUTHEASTERN STATES. WITH RIDGING OVER THE NORTHWESTERN CARIBBEAN SEA AND SOUTH FLORIDA. EXPECTING WIDESPREAD LOW CLOUDS TO DEVELOP OVERNIGHT AS SUBSIDENCE PREVAILS DOWNSTREAM OF THE APPROACHING TROUGH. INCREASED MAINLY AFTERNOON CONVECTIVE COVERAGE OVER SOUTHEAST GA AS FORCING INCREASES WITH THE ARRIVAL OF THE UPPER TROUGH.
802 PM EDT TUE SEP 29 2015 A SLOW MOVING COLD FRONT WILL HELP TO GENERATE A WIDESPREAD WITH THE RAIN BEING HEAVY AT TIMES FROM THE FINGER LAKES AND SOUTHERN TIER EAST TO THE COAST.
Behind a passing cold front. with VFR conditions expected for the latter portions of the TAF period at all sites as high pressure at the surface settles over the region. /ISSUED 944 PM CDT TUE SEP 29 2015/ A cold front is making steady southward progress across northeast Oklahoma and far northwest Arkansas this evening.
700 PM CDT TUE SEP 29 2015 The upper level trough that was moving to the west and brought showers to the eastern Ozarks today will begin to shift back to the east as the upper level flow catches it and moves it east. This will occur as a cold front approaches the region and moves through the area into tomorrow. As a result, high temperatures tomorrow are only expected to rise into the lower 70s even after the low overnight stratus burns off and the comes out for tomorrow afternoon. The forecast for the remainder of the week will feature cooler, more fall like weather as the upper level pattern transitions to northwest flow aloft and additional Canadian air filters south across the plains and into the Ozarks.
UPPER LOW CENTER SPINNING OVER WESTERN TENNESSEE AT 04Z AS CAN BE SEEN IN LATEST H2O VAPOR LOOP.
HIGH PRESSURE BUILDING INTO THE CWA TONIGHT BEHIND THE EXITING STORM SYSTEM. DEWPOINTS HAVE DROPPED SIGNIFICANTLY IN THE LAST FEW HOURS WHERE CLOUDS HAVE CLEARED FROM THE LOW 50S INTO THE UPPER 30S. ALSO WITH THE HIGH MOISTURE AMOUNTS IN THE GROUND. EASTERLY FLOW OFF HIGH PRESSURE IN SOUTHEAST CANADA WILL PUMP A PERSISTENT SUPPLY OF COOL AND DRY AIR INTO THE STATE. BUT THE GENERAL DRY PATTERN LOOKS TO CHANGE LITTLE WITH A SLIGHT WARMING TREND EARLY IN THE WEEK AS THE RIDGE TRIES TO SLIDE EAST. WINDS WILL BE LIGHT FROM THE NORTHEAST TO EAST AS A SURFACE PRESSURE RIDGE DOMINATES THE WEATHER.
THE AREA OF LOW PRESSURE RESPONSIBLE FOR THE WIDESPREAD SHOWERS OF THE LAST COUPLE OF DAYS WILL EXIT THE REGION THROUGH TOMORROW. THIS WILL BE REINFORCED AS LOW PRESSURE REMAINS OFF THE SOUTHEAST COAST THIS WEEKEND.
CHATTANOOGA AIRPORT, TN 69 78 62 72 / 40 60 30 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 68 75 61 69 / 50 60 40 40 OAK RIDGE, TN 68 75 60 69 / 50 60 40 30 TRI CITIES AIRPORT, TN 65 73 59 65 / 70 60 60 50.
AND THE TYPICAL COLD SPOTS ARE ALREADY AT OR NR THE FREEZING MARK. BUT NOT REACH FREEZING. E-CNTRL WI TO BE HEADLINE-FREE AS NE BOUNDARY LAYER WINDS AT AROUND 20 KTS PLUS WARMER BAY/LAKE MI WATER TEMPS HELP HOLD MIN TEMPS IN THE UPR 30S TO LWR 40S. A PREVAILING NE WIND WL CONT TO KEEP LAKESHORE AREAS COOLER THAN INLAND LOCATIONS. WEDNESDAY NIGHT THROUGH TUESDAY HIGH PRESSURE RIDGING INTO NORTHEAST WISCONSIN FOR THE REST OF THE WEEK AND INTO THE WEEKEND. COOLER TEMPS AND DELTA T/S ALSO MAY GENERATE LAKE CLOUDS AT TIMES AS WELL.
THE COLD FRONT IN MISSOURI WILL MOVE THROUGH ARKANSAS BY MORNING.
OVERNIGHT NW FLOW ALOFT AND SFC WINDS WILL BRING IN THE DRIER AIR FROM THE NW AS THE UPPER TROUGH OVER OUR AREA SLOWLY MOVES TO THE E. 00Z UPPER AIR ANALYSIS INDICATES THE UPPER LOW HAS FINALLY BECOME MORE OF AN OPEN TROUGH AND IS FINALLY SLOWLY MOVING TO THE E/NE. UPPER TROUGHING IS SITUATED JUST WEST OF THE AREA THIS AFTERNOON AND THIS TROUGH WILL SLOWLY WORK ITS WAY ACROSS THE AREA TONIGHT INTO WEDNESDAY. WITH SUFFICIENT MOISTURE AND AND THE PRESENCE OF THIS TROUGH SHOWERS ARE BEGINNING TO DEVELOP THIS AFTERNOON MAINLY ALONG AND NORTH OF THE NATCHEZ TRACE CORRIDOR. AS THE UPPER TROUGH SHIFTS EAST OF THE AREA BY WEDNESDAY MORNING DRIER AIR WILL BUILD INTO THE NORTHWEST WITH PWATS FALLING TO AROUND 1.
Low pressure area is centered over the Southern Sacramento valley. Radar imagery shows it nicely with circulation of showers around the low. The low pressure area will move southeast overnight and Tuesday morning where it becomes centered over Southern Nevada.
THE CLOUDS WILL SLOWLY CLEAR FROM WEST TO EAST OVERNIGHT AS THE LOW LEVEL CIRCULATION TRACKS NORTHEAST. BUT THE BIGGEST CONCERN WILL BE THE LOW CEILINGS.
959 PM MST MON NOV 9 2015 AFTERNOON WATER VAPOR IMAGERY SHOWED A VIGOROUS UPPER LOW PRESSURE SYSTEM AND TROUGH APPROACHING THE GREAT BASIN.
THIS PATTERN WILL RESULT IN A WARMER AND MORE HUMID DAY THAN THE PAST SEVERAL DAYS WITH AFTERNOON HIGHS IN THE 70S. LARGE SCALE LIFT WILL INCREASE FROM WEST TO EAST TONIGHT AS A LOW PRESSURE SYSTEM MOVES EAST ACROSS COLORADO AND NEW MEXICO.
350 AM CST TUE NOV 10 2015 A BIT WARMER THIS MORNING THAN YESTERDAY AS CLOUDS HAVE HELP TO HOLD OVERNIGHT TEMPERATURES UP A BIT. WINDS SWINGING AROUND TO THE SOUTHEAST LATE IN THE DAY AS HIGH PRESSURE EXITS OFF TO THE EAST. A TRAILING COLD FRONT WILL EXTEND FROM THE LOW DOWN INTO THE TRANS-PECOS REGION OF TEXAS.
131 AM EST TUE NOV 10 2015 AN UPPER LEVEL LOW OVER CENTRAL ILLINOIS WILL LIFT NORTHEAST ACROSS OUR AREA TONIGHT. OTHERWISE FAIR WEATHER IS EXPECTED TUESDAY AND TUESDAY NIGHT AS A WEAK HIGH PRESSURE SYSTEM BUILDS INTO THE AREA.
THE BACK EDGE OF THE LOW CLOUDS WAS CONTINUING TO VERY SLOWLY SHIFT EASTWARD TOWARD THE FORECAST AREA AND EXPECT THIS TREND TO CONTINUE OVERNIGHT. MVFR CEILINGS DUE TO THE LOW CLOUDS AND FOG ARE EXPECTED TO CONTINUE UNTIL AROUND 15Z.
CLOSED LOW CIRCULATION OVER CENTRAL CALIFORNIA WILL RAPIDLY MOVE EAST ON TUESDAY. QG DIAGNOSTICS SHOW WELL DEVELOPED DESCENT/ASCENT COUPLET AS THE CLOSED LOW CIRCULATION CROSSES THE WRN SLOPE.
LATEST WATER VAPOR SATELLITE IMAGERY SHOWS THE MAIN LOW PRESSURE CENTER JUST ACROSS THE MT/ID STATELINE NEAR SALMON, ID WITH NEXT MOISTURE PLUME PUSHING NORTHWARD AHEAD OF THE LOW CENTER.
327 AM EST TUE NOV 10 2015 LATEST SURFACE ANALYSIS SHOWS A WEAKENING LOW PRESSURE AREA OVER NE FL AND PUSHING EASTWARD. WITH DRY HIGH PRESSURE BUILDING INTO THE AREA THROUGH THE MORNING HOURS.
With progs trending just a bit slower with the approaching storm system, pulled a mention of storms tonight, but could see some some drizzle/very light spotty rain if the low level moisture deepens enough over the far western cwfa.
1155 PM CST MON NOV 9 2015 DRY AND QUIET WEATHER WILL CONTINUE THROUGH TUESDAY AS WEAK HIGH PRESSURE REMAINS IN CONTROL. A POTENT LOW PRESSURE SYSTEM WILL TAKE SHAPE OVER THE SOUTHWEST CONUS. HIGH PRESSURE QUICKLY SHIFTS EAST OF THE REGION ON TUESDAY AS A VIGOROUS TROUGH PUSHES ACROSS THE FOUR CORNERS REGION AS CYCLOGENESIS OCCURS OVER EASTERN COLORADO.
THE LATEST OBSERVATIONS AND NWP SOLUTIONS CONTINUE TO SHOW A STRONG/DEEP UPPER LOW OVER CALIFORNIA EARLY THIS MORNING.
101 AM EST TUE NOV 10 2015 WEAK SOUTHERLY TO SOUTHWESTERLY WINDS ACROSS THE REGION ARE IN ADVANCE OF A COLD FRONT IN THE EASTERN GULF. A COLD FRONT OVER THE EASTERN GULF OF MEXICO WILL APPROACH SOUTH FLORIDA TONIGHT ALLOWING FOR A LIGHT SOUTHWEST STEERING FLOW OVER SOUTH FLORIDA. THIS WILL KEEP THE LOW LEVEL MOISTURE IN PLACE OVER THE AREA TONIGHT LEADING TO SOME FOG FORMATION LATE TONIGHT INTO EARLY TUESDAY MORNING.
WEAK RIDGING WILL MOVE IN. HIGH PRESSURE WILL PREVAIL. /ISSUED / WEAK SFC BOUNDARY PLATEAU VICINITY EXPECTED TO MOVE FURTHER EAST OVERNIGHT AS UPPER TROUGH AXIS SWINGS ACROSS. WEAK RIDGING WILL MOVE IN. HIGH PRESSURE WILL PREVAIL.
311 AM EST TUE NOV 10 2015 AN AREA OF LOW PRESSURE, EXTENDING FROM THE OHIO VALLEY TO THE ATLANTIC SEABOARD, WILL MOVE NORTH.
LOOKING FOR THE PERSISTENT CLOUDINESS THAT HAS BEEN PRESENT TO PULL OUT OF CENTRAL ALABAMA (IN THE WAKE OF THE UPPER TROUGH MOVING OUT) BY AROUND MIDDAY TODAY.
448 AM EST TUE NOV 10 2015 AN UPPER LEVEL LOW WILL BEGIN TO EXIT THE REGION THIS MORNING.
The low clouds and fog will last until at least 10/15Z before mixing out. /issued 254 PM CST MON NOV 9 2015/ An upper level trough is digging southward and moving eastward along the western conus. Temperatures are expected to warm up even further into the upper 70s across the Permian Basin on Tuesday as the previously mentioned upper trough moves closer to the region.
RETREATING HIGH PRESSURE WILL STILL KEEP THE AREA UNDER ABUNDANT SUNSHINE AND MILD TEMPERATURES. LOW PRESSURE WILL BEGIN TO ORGANIZE OVER THE PLAINS TONIGHT WHILE THE HIGH MOVES FARTHER EAST.
LOW PRESSURE TO THE EAST NORTHEAST, WHICH IS KATE, IS FORECAST TO CONTINUE TO MOVE AWAY FROM SOUTH FLORIDA. THERE IS AN AREA OF WEAK LOW PRESSURE MOVING ACROSS NORTH FLORIDA THIS MORNING. THERE IS A DEVELOPING COLD FRONT WITH IT, HOWEVER, THIS FRONT WILL BE WEAK.
HIGH PRESSURE RIDGING DOWN THE LOWER MISSISSIPPI VALLEY. AND THIS WILL ALLOW SOUTHEAST WINDS TO RETURN IN THE LOW LEVELS. TEMPS WILL AGAIN SLIDE INTO THE 50S TNITE IN THE WAKE OF THE RECENT COLD FRONT.
LOW PRESSURE WILL LIFT NORTHEASTWARD ALONG THE COAST THIS MORNING AND BE OFF THE MID ATLANTIC COAST BY THIS AFTERNOON.
KALW WILL GRADUALLY IMPROVE TO VFR CONDITIONS BY 12Z AS MOISTURE FROM UPPER LOW PULLS TO NORTHEAST.
An upper level low/open trough currently over California will trek eastward into the Central Rockies during the short term period. This feature will assist in the strengthening of an area of low pressure across eastern Colorado at the surface.
AS TROPICAL STORM KATE ACCELERATES NORTHWARDS AWAY FROM THE BAHAMAS AND HIGH PRESSURE OVER THE SOUTHEASTERN UNITED STATES AND GULF OF MEXICO REMAINS OUT OF OUR AREA. THE LOW TO MID LEVEL RIDGE.
1214 AM EST TUE NOV 10 2015 HIGH PRESSURE WILL CREST OVER THE AREA TONIGHT INTO TUESDAY.
316 AM EST TUE NOV 10 2015 HIGH PRESSURE WILL SHIFT WELL OFFSHORE TODAY. LOW PRESSURE IS THEN FORECAST TO FORM OFF THE CAROLINAS.
1116 PM CST MON NOV 9 2015 CLEAR SKIES AND HIGH PRESSURE CONTINUE TO BE THE MAIN WEATHER CONDITIONS THROUGH THE SHORT TERM PERIOD. THE HIGH IS CENTERED OVER THE NE US LEADING TO LIGHT WINDS OUT OF THE SOUTH AND EAST ACROSS THE AREA. INFLUENCE OF HIGH PRESSURE AND DRY MID LEVELS MEAN THAT THERE IS A BUST POTENTIAL FOR OVERNIGHT LOWS. MOST SUGGEST THAT WE ARE GOING TO SEE TEMPS IN THE LOW 30S AND POSSIBLY UPPER 20S.
SOUTHWEST WINDS INCREASE TUESDAY AFTERNOON OUT AHEAD OF AN APPROACHING UPPER LEVEL LOW. /ISSUED 209 PM CST MON NOV 9 2015/ SOUTHWEST FLOW ALOFT WAS IN THE PROCESS OF AMPLIFYING THIS AFTERNOON IN THE WAKE OF A S/W RIDGE AND BY TUESDAY LOWER TROPOSPHERIC WINDS WILL BE A GOOD 10 KNOTS STRONGER THAN TODAY. WITH LEE TROUGHING REMAINING TO OUR WEST TONIGHT.
Otherwise, another quiet weather day is anticipated across central and southeast Illinois with a persistent ridge of high pressure and associated dry air in place. Daytime highs should top out a few degrees warmer than the past couple of days, both due to airmass modification & weak low- level warm advection developing. Until then, southerly winds will continue through overnight today and into tomorrow, increasing the temps and available moisture in the low levels. However, MOS is still putting tomorrows highs in the 60s with some fluctuation between models ranging from the low to upper 60s, partially due to convection and/or cloud cover in the models.
A LOW PRESSURE TROUGH WILL MOVE ACROSS CALIFORNIA THROUGH TUESDAY. THIS WILL BRING COOLER WEATHER WITH STRONGER ONSHORE FLOW AND GUSTY WESTERLY WINDS.
SHOWERS AHEAD OF A COLD FRONT ARE PUSHING ASHORE THIS MORNING ACROSS WEST CENTRAL AND SOUTHWEST FLORIDA. AS THE FRONT PUSHES THROUGH THE AREA TODAY ON AN IMPULSE FROM A MID- LEVEL TROUGH HEADING INTO THE ATLANTIC. COOLER. MARINERS COULD SEE SOME GUSTY WINDS OVER THE WATERS TODAY AS A COLD FRONT PASSES. DRIER AIR WILL MOVE IN AFTER TODAY/S COLD FRONT.
446 AM EST TUE NOV 10 2015 LOW PRESSURE AT THE SURFACE AND ALOFT WILL MOVE NORTHEAST AND AWAY FROM THE OHIO VALLEY TODAY. A DRY AIRMASS WILL BUILD IN BEHIND IT WITH HIGH PRESSURE CENTERING OVER EASTERN KENTUCKY TONIGHT.
823 PM EST SAT FEB 13 2016 HIGH PRESSURE WILL CONTINUE TO RIDGE INTO THE REGION FROM THE MIDWEST TONIGHT. AS THE HIGH PASSES BY SATURDAY AFTERNOON IT WILL ALLOW A WEAKENING AREA OF LOW PRESSURE TO MOVE INTO THE CENTRAL GREAT LAKES.
630 PM EST SAT FEB 13 2016 COLD HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT AND SUNDAY. THE RIDGE WILL SHIFT OFF THE COAST SUNDAY NIGHT WITH A WARM FRONT DEVELOPING SOUTH OF THE FORECAST AREA.
IN ANY CASE ALL MODELS AGREE THAT PCPN SHOULD MAXIMIZE OVER OUR CWA SUNDAY MORNING THEN SHIFT NEWD WITH A WARM FRONT.