Aikyam-Lab/Synoptic-Bench huggingface dataset:
A CUT-OFF UPPER LOW. STRONG HIGH PRESSURE BUILDING IN THE UPPER LEVELS WILL REMAIN IN CONTROL ACROSS THE REGION DURING THE NEXT 24 HR. WINDS SHIFT NORTHERLY CLOSE TO MIDNIGHT AS REINFORCING HIGH PRESSURE MOVES INTO THE CWA. UPPER LEVEL RIDGE WILL BUILD ACROSS THE AREA WHILE AN UPPER LOW REMAINS ALMOST STATIONARY OVER THE BAJA CA COAST. THIS LOW PRESSURE SYSTEM WILL STREAM FEW TO SCT HIGH CLOUDS THROUGH THE SHORT TERM PERIOD. ABUNDANCE OF SUNSHINE TODAY WILL ALLOW FOR TEMPERATURES TO REACH THE LOWER 70S ACROSS THE CWA. REINFORCING HIGH PRESSURE MOVES SOUTH RETURNING WINDS MORE NORTHERLY AND THICKNESS VALUES GRADUALLY LOWER A BIT MORE. LOW TEMPS EARLY MONDAY MORNING WILL BE IN THE LOW TO MID 40S AND HIGH TEMPERATURES WILL BE IN THE LOW 70S.
956 AM MST SUN JAN 25 2015 REX PATTERN BECOMING A BIT MORE DEFINED OFF THE LEFT COASTLINE OF NOAM THIS MORNING WITH DEEP TROUGHING TO THE EAST. NORTHWEST FLOW AT THE INTERFACE OF THIS PATTERN IS PULLING PACIFIC MOISTURE OVER THE CREST THE RIDGE TOWARD THE CENTRAL ROCKIES. THE CHALLENGE WILL BE WHAT WILL HAPPEN TO THE MOISTURE IN THE LOWER LAYERS AS THE UPPER RIDGE AXIS FOLDS EASTWARD INTO THE GREAT BASIN. THE SHIFT IN THE RIDGE AXIS BRINGS IN WARMER. OTHERWISE DRY WEATHER CONTINUES WITH HIGH PRESSURE IN CONTROL.
WATER VAPOR SATELLITE/WSR-88D VAD WIND PROFILES THIS AFERNOON PLACE A CLOSED UPPER LEVEL LOW OVER SOUTHERN ILLINIOS THIS AFTERNOON.
Will even throw in a slight chc of freezing drizzle toward morning in case the light precip persists. Remainder of the short term looks generally dry and seasonal as weak high pressure tries to build in on a broad nw flow aloft behind the monster low that will be bombing out off the East Coast. This period will likely be marked by a gradual transition to deep H50 flow as a deep trof forms over the Great lakes region.
TEMPERATURES ARE WARMING QUICKLY THIS MORNING AND MOST LOCATIONS ARE AT LEAST 10 DEGREES WARMER THAN THEY WERE YESTERDAY AT THIS TIME. WINDS WERE BECOMING WEST NORTHWEST AROUND 10 KNOTS AT TAF ISSUANCE TIME AND WILL BECOME NORTHWEST AT 15-20 KNOTS AROUND 15Z AS A COLD FRONT MOVES INTO THE REGION. /ISSUED 350 AM CST SUN JAN 25 2015/ TODAY WILL BE THE FINAL DAY OF NORTHWEST FLOW BEFORE DEEP RIDGING ALOFT TAKES HOLD.
FREEZING LEVELS WILL DROP TO SUFFICIENT SNOW LEVELS AND WE WILL SEE THE TAIL END OF THE PRECIPITATION SWITCH TO SNOW BETWEEN 08Z AND 12Z. THE LOW CIGS WILL CONT THRU THE TAF PD. A FAST-MOVING LOW PRESSURE AREA WILL PUSH INTO EXTREME SOUTHERN ILLINOIS BY 18Z, BRINGING MVFR CONDITIONS TO CKV BY 17Z AND TO BNA BY 19Z. AS THE LOW PUSHES SOUTHEASTWARD INTO KENTUCKY DURING THE AFTERNOON, EXPECT MVFR CONDITIONS TO DEVELOP AT CSV BY 22Z. SFC WINDS WILL BECOME GUSTY AND SWITCH FROM SOUTH, TO WEST, TO NORTHWEST, AS THE LOW PRESSURE AREA PASSES ACROSS KENTUCKY LATER TODAY AND TONIGHT.
410 PM EST SUN JAN 25 2015 A LOW PRESSURE SYSTEM MOVING SOUTH OF THE REGION WILL CONTINUE TO BRING SNOW TO THE FORECAST AREA THROUGH LATE TONIGHT. THE PRECIPITATION HAS BECOME ALL SNOW OVER THE ENTIRE FORECAST AREA WITH STRONG COLD AIR ADVECTION FROM THE NORTHEAST BEHIND A COLD FRONT. RIDGING WILL BUILD INTO THE AREA TUE-TUE NGT PROVIDING FAIR WX WITH DECREASING CLOUDINESS. NEXT SHRTWV TO MOVE INTO THE OH VALLEY FROM THE WEST ON THU SHOULD CAUSE A VARIETY OF PRECIP TYPES IN OUR AREA INCLUDING RAIN/SNOW AND PSBLY A PERIOD OF FREEZING RAIN.
BROAD HIGH PRESSURE OVER THE WESTERN GULF WAS PROVIDING A LIGHT SW FLOW ACROSS THE SOUTHERN STATES. A TROUGH WILL SWEEP ACROSS THE FORECAST AREA THIS AFTERNOON/EVENING. WITH A COLD FRONT PASSAGE EARLY MON. WITH THE TROUGH. AIR TEMPS COOLING TO NEAR FREEZING SHOULD RESULT IN LITTLE TO NO ICE/SNOW ACCUMULATIONS.
1133 AM CST SUN JAN 25 2015 NOT A LOT OF ISSUES WITH THE 18Z TAFS WITH THE TIMING OF THE WEAK COLD FRONT AS THE MAIN HIGHLIGHT. LATEST OBS AT 16Z SHOW WINDS SHIFTING FROM SW TO NW AT KCLL/KUTS/KLFT INDICATING THE COLD FRONT PUSHING INTO THE FORECAST AREA. COLD FRONT WILL MAINLY BE A WIND SHIFT TODAY ACROSS THE AREA WITH COOLER CONDITIONS TOMORROW. LOW PRESSURE OVER MID MISS RIVER VALLEY WILL MOVE E/SE ASSOCIATED WITH A FAST MOVING CLIPPER SYSTEM ALOFT. FOR SE TX THIS WILL ALLOW FOR HIGH PRESSURE OVER THE AREA AND GENERALLY QUIET CONDITIONS FOR MUCH OF THE WEEK.
234 PM CST Sun Jan 25 2015 A cold front moved through the area this morning but you wouldn't know it looking at the temperatures. Highs today will actually be warmer than they were yesterday with a northerly wind shift the only evidence of the frontal passage.
339 PM EST SUN JAN 25 2015 TEMPERATURES HAVE WARMED INTO THE 60S ACROSS ALL OF SOUTH FLORIDA THIS AFTERNOON UNDER SUNNY SKIES AS HIGH PRESSURE DOMINATES. WINDS ARE EXPECTED TO QUICKLY TURN MORE TO THE SOUTHWEST LATER TONIGHT AHEAD OF THE NEXT COLD FRONT WHICH WILL PUSH INTO SOUTH FLORIDA BY LATE MONDAY MORNING. THIS WILL ALLOW OVERNIGHT LOW TEMPERATURES TO BE A BIT WARMER THAN LAST NIGHT BUT STILL BELOW NORMAL.
A WARM FRONT IS CURRENTLY ENTERING THE MT/ND BORDER. AND FREEZING RAIN TO DEVELOP ALONG AND EAST OF A LINE FROM THE TURTLE MOUNTAIN REGION INTO THE JAMES RIVER VALLEY THIS EVENING.
Expansive cloud cover from this passing system provided good insolation today, keeping conditions cooler as temperatures struggled to warm much from this morning's low temperatures. As a result, afternoon high temperatures should only peak in the low/mid 40s and possibly into the upper 40s near central Kansas. These low clouds may be a bit slow to clear out overnight, so trended a couple of degrees warmer for temperatures tonight with lows in the upper 20s/low 30s. Only expect some scattered low/mid clouds from this passing trough with winds veering from southwest to northwest by the afternoon. A modest thermal ridge should set up over the High Plains with decent downslope winds aiding in a return to well above-normal temperatures. Expect high temperatures to reach into the low to mid 60s from east to west.
HIGH PRESSURE WILL BRING DRY CONDITIONS TO NORTHWEST CALIFORNIA THIS WEEK. HIGH PRESSURE WILL CONTINUE TO DOMINATE THE WEATHER PATTERN THIS WEEK. THE RIDGE MIGHT WEAKEN SOME BY THE MIDDLE OF THIS WEEK AS AN UPPER LEVEL TROUGH APPROACHES THE PACIFIC NORTHWEST.
QUIET WEATHER WILL CONTINUE THROUGH THE SHORT TERM AS A RIDGE OF HIGH PRESSURE OVER THE WESTERN U. LEE TROF ACROSS THE SOUTHEAST PLAINS TONIGHT WILL KEEP THESE AREAS WARMER THAN PAST COUPLE NIGHTS. ESPECIALLY ACROSS THE LOWER EASTERN SLOPES OF THE SE MTS WHERE LOWS MAY ONLY DROP INTO THE MID-UPPER 30S. AND EVEN SOME LOWER 60S ACROSS THE HIGH COUNTRY.
MORE RAIN WILL BE ASSOCIATED WITH THE UPPER LOW THAT WILL MOVE THROUGH SOUTHEAST MISSOURI THIS AFTERNOON. /ISSUED 539 AM CST SUN JAN 25 2015/ COLD FRONT WILL MOVE THROUGH THE REGION TODAY.
116 PM PST SUN JAN 25 2015 More fog and low clouds are expected today as high pressure returns. A ridge of high pressure will then rebound late in the week for drier weather and more fog.
1137 AM CST SUN JAN 25 2015 A DRY COLD FRONT HAS PUSHED QUICKLY SOUTH THROUGH NORTH TEXAS TODAY. TEMPERATURES ARE WARMING QUICKLY THIS MORNING AND MOST LOCATIONS ARE AT LEAST 10 DEGREES WARMER THAN THEY WERE YESTERDAY AT THIS TIME. /ISSUED 350 AM CST SUN JAN 25 2015/ TODAY WILL BE THE FINAL DAY OF NORTHWEST FLOW BEFORE DEEP RIDGING ALOFT TAKES HOLD.
TONIGHT AND MONDAY THE LATEST RAP ANALYSIS AND SATELLITE/RADAR IMAGERY SHOW ARCTIC HIGH PRESSURE BUILDING SOUTHWARD OVER LAKE SUPERIOR EARLY THIS AFTERNOON. LINGERING AREAS OF STRATO-CU OVER CENTRAL AND NORTHEAST WISCONSIN WILL BE FADING BY SUNSET AS INCOMING ARCTIC HIGH AND VERY DRY AIR OVERWHELM THE LOW LEVEL MOISTURE. BUT WENT BELOW GUIDANCE WITH LOWS RANGING FROM THE LOWER SINGLE DIGITS ABOVE ZERO NORTH TO AROUND 10 ABOVE SOUTH. LOW PRESSURE WILL CONTINUE TO MOVE SOUTHEAST AND WEAKEN AS IT MOVES INTO NORTHWEST WISCONSIN BY 00Z. THE SNOW MAY ALSO MIX WITH FREEZING DRIZZLE OVER CENTRAL WISCONSIN BY LATE IN THE AFTERNOON AS MID-LEVEL MOISTURE BEGINS TO PEEL OUT.
THIS SHORT WAVE WILL CONTINUE TO MOVE OFF TO THE EAST TONIGHT AND HELP PUSH A COLD FRONT. WEAK HIGH PRESSURE WILL BUILD IN WITH A DRY CONTINENTAL AIR MASS PREVAILING.
WATER VAPOR SATELLITE/WSR-88D VAD WIND PROFILES PLACE A CLOSED UPPER LEVEL LOW OVER MISSOURI. A 1001 MB LOW PRESSURE SYSTEM IS MOVING ACROSS SOUTHERN IOWA WHILE A POTENT UPPER LEVEL TROF PUSHES INTO THE MIDDLE MISSISSIPPI VALLEY. THE POTENT UPPER TROF WILL CLOSE OFF AS IT MOVES INTO THE WESTERN OHIO VALLEY. NOW DEVELOPING ACROSS NW ARKANSAS ALONG AND AHEAD OF A DEVELOPING COLD FRONT. THIS AFTERNOON EXPECT SHOWERS TO RE-DEVELOP AS THE UPPER LOW MOVES JUST NORTH OF THE AREA. THE UPPER LOW WILL QUICKLY MOVE EAST OF THE AREA THOUGH SCATTERED SHOWERS WILL LINGER INTO THE EVENING OVER MUCH OF THE AREA.
257 PM CST SUN JAN 25 2015 CHALLENGES CONCERN PRECIPITATION CHANCES/AMOUNTS/TYPE LATE TONIGHT THROUGH MONDAY WITH THE NEXT CANADIAN TROUGH MOVING THROUGH NORTHWEST FLOW ALOFT. THIS EVENING WILL BE PARTLY TO MOSTLY CLOUDY AND COOL WITH TEMPERATURES DROPPING INTO THE LOWER TEENS TO LOWER 20S. PRECIPITATION WILL HOLD OFF UNTIL AFTER MIDNIGHT WHEN AN 850 HPA TROUGH OVER CENTRAL MANITOBA/EASTERN DAKOTAS MOVES ACROSS MN AND INTO THE UPPER MS RIVER VALLEY. WITH SUB-FREEZING BOUNDARY LAYER TEMPERATURES. EXPECT SNOW TO TRANSITION TO FREEZING DRIZZLE FROM WEST TO EAST THROUGH THE DAY. A THIN GLAZE OF ICE FROM FREEZING DRIZZLE IS POSSIBLE MONDAY MORNING. IT SHOULD QUICKLY MELT AS TEMPERATURES RISE TO ABOVE FREEZING FOR ALL AREAS EXCEPT THE FAR EAST BEHIND THE WARM FRONT.
258 PM CST SUN JAN 25 2015 (Tonight and Monday) A weak cold front moved across West Central TX this morning, resulting in gusty north winds and an influx of slightly drier air. The surface anticyclone will shift southeast across the southern portion of the CWA overnight. This will yield light winds south of the Colorado River, where temperatures are forecast to fall into the low/mid 30s by sunrise. With full insolation and adequate mixing, most of West Central TX should realize max temperatures in the lower 70s.
TEMPS ON MONDAY WILL BE SLIGHTLY COOLER THAN TODAY.
STRONG UPPER LEVEL RIDGE IS NOW TRANSITIONING INLAND FROM THE PACIFIC OCEAN AND IS CENTERED OVER SOUTHERN OREGON THIS MORNING. FOG AND STRATUS ARE PRESENT IN THE LOWER TREASURE AND EASTERN MAGIC VALLEY. ESPECIALLY ON RIDGETOPS AND SOUTHEAST OREGON IN SOUTHERN HARNEY AND MALHEUR COUNTIES. VALLEY LOCATIONS WILL STAY COOLER WITH THE INVERSION FROM SUBSIDENCE ALOFT LIMITING THE MIXING OF THE LOWER ATMOSPHERE. AS THE CENTER OF THE HIGH PRESSURE MOVES OVER THE FORECAST AREA LATER TONIGHT EXPECT LOW CLOUDS AND FOG / CURRENTLY OVER EASTERN IDAHO SNAKE RIVER BASIN/ TO MOVE INTO THE MAGIC VALLEY TOWARDS THE TREASURE VALLEY OVERNIGHT.
SKIES WILL BE MOSTLY CLEAR TONIGHT WHICH WILL ALLOW TEMPS TO FALL BACK INTO THE LOWER 40S. TEMPS WILL THEN WARM UP NICELY ON MONDAY WITH HIGHS CLIMBING INTO THE LOWER TO MIDDLE 70S.
1223 PM EST SUN JAN 25 2015 A QUICK MOVING AREA OF LOW PRESSURE WILL DIVE SOUTHEAST.
THE LOW PRESSURE WILL CONTINUE TO MOVE TOWARDS THE AREA THROUGH THE EVENING. AS THE TEMPERATURES DROP BELOW FREEZING OVERNIGHT. THE TEMPERATURES ARE NOT EXPECTED TO DROP BELOW FREEZING UNTIL AFTER THE DRIER AIR MOVES IN. MODELS DIFFER ON TIMING OF THE BELOW FREEZING TEMPERATURES. WITH AN ADVISORY FOR THE HIGHER ELEVATIONS IN EAST TENNESSEE. TEMPERATURES WILL WARM TO ABOVE FREEZING IN ALL AREAS EXCEPT THE HIGHEST ELEVATIONS. WITH JUST ENOUGH MOISTURE TO WARRANT MORE SNOWFALL ACCUMULATION IN THE HIGHER ELEVATIONS.
A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION OVERNIGHT.
318 PM CST SUN JAN 25 2015 WATER VAPOR IMAGERY SHOWS A CUT-OFF LOW IN THE UPPER ATMOSPHERE SPINNING JUST OFFSHORE THE CENTRAL COASTLINE OF BAJA CALIFORNIA. AS THE CUT-OFF LOW STARTS MOVING NORTHWARD AND A WEAK TROUGH OF LOW PRESSURE MOVES THROUGH THE AREA. RIDGING. ONLY A WIND SHIFT IS EXPECTED AS THE TROUGH MOVES THROUGH. EXPECT SLIGHTLY WARMER TEMPERATURES MONDAY NIGHT THANKS TO INCREASED RIDGING ALOFT.
943 AM MST Sun Jan 25 2015 Upper level ridge with axis now centered over the inland Pacific NW will gradually shift east over the next 24 hrs. Band of strong NW flow aloft will persist over north central and central MT through most of today before shifting east with the ridge axis tonight. Extensive mid-high cloud deck is persisting along and east of I-15 this morning and expect this to remain in this general area through the afternoon until the ridge axis shifts further east aallowing winds aloft to develop more of a westerly component. Finally there is a very small threat of MVFR visibilities in freezing fog over northcentral Montana early this morning.
401 PM CDT MON MAR 16 2015 HIGH CLOUDS STREAMING ACROSS THE PANHANDLES THIS AFTERNOON FROM AN UPPER LEVEL LOW OVER MEXICO. HIGH TEMPERATURES ARE IN THE LOW 70S TO UPPER 80S ACROSS THE PANHANDLES WITH GUSTY SOUTHWEST WINDS. A COLD FRONT WILL CROSS THE PANHANDLES TONIGHT AND EARLY TUESDAY MORNING. THE DRY CONDITIONS OF LATE WILL GIVE WAY TO SEVERAL CHANCES FOR PRECIPITATION THROUGHOUT THE WEEK AS THE UPPER LEVEL LOW MOVES EASTWARD AND VARIOUS DISTURBANCES IN THE UPPER LEVEL FLOW CROSS THE AREA.
SCATTERED SHOWERS WILL BE POSSIBLE TUESDAY MORNING AS THE UPPER LOW OVER BAJA CALIFORNIA MOVES NORTHEAST TOWARD THE TEXAS BIG BEND. A WEAK COASTAL TROUGH WAS LOCATED OVER THE OFFSHORE WATERS THIS MORNING. BUT A BETTER DEFINED INVERTED TROUGH WAS ANALYZED AT 925 MB ALONG THE LOWER TO MIDDLE TEXAS COAST AT 12Z. THIS LOW LEVEL TROUGH AXIS WILL MOVE INLAND THIS AFTERNOON WITH THE BETTER CHANCES FOR SHOWERS MOVING INLAND ALSO. DRIER AIR TO THE EAST OF THIS TROUGH AXIS WILL MOVE INTO THE COASTAL AREAS WITH DIMINISHING RAIN CHANCES FOR THIS AFTERNOON AND TONIGHT.
HIGH PRESSURE SURFACE AND ALOFT RESULTED IN THIS WARMER WEATHER. THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AND SHIFT EAST TONIGHT INTO TUESDAY AS A CLOSED UPPER LOW OVER THE SOUTHERN TIP OF BAJA BEGINS TO OPEN UP AND EJECT NORTHEAST.
A STRONG UPPER RIDGE WILL BUILD EASTWARD INTO ALABAMA TODAY AND TONIGHT. A SHORT WAVE TROF MOVING THROUGH THE OHIO VALLEY REGION WILL PUSH A WEAK COLD FRONT INTO NORTH ALABAMA ON TUESDAY. THE POST-FRONTAL COOLER AIR WILL NOT REACH CENTRAL ALABAMA IN TIME TO PROVIDE ANY COOLER TEMPERATURES TUESDAY AFTERNOON.
246 PM EDT MON MAR 16 2015 A COLD FRONT WILL BRING THE CHANCE FOR SHOWERS LATE TONIGHT AND TUESDAY MORNING. WITH COOLER CONDITIONS FOR THE REST OF THE WEEK. THIS WAVE AND ITS ASSOCIATED COLD FRONT IS PROGGED TO CROSS THE REGION LATE TONIGHT.
249 PM EDT MON MAR 16 2015 THE SHOWERS EARLIER IN THE ATLANTIC WATERS WELL SOUTH OF THE LOWER KEYS AND DRY TORTUGAS HAVE DISSIPATED. TEMPERATURES IN THE ISLAND CHAIN ARE IN THE LOWER 80S. A MID TO UPPER LEVEL RIDGE OVER THE WESTERN GULF OF MEXICO WITH DAMPEN WHILE TRANSITIONING EASTWARD OVER THE NEXT SEVERAL DAYS.
THEN MOISTURE INCREASES OVERNIGHT TONIGHT AHEAD OF AN APPROACHING COLD FRONT.
THE LOW ITSELF GETS KICKED EAST BY A SECOND UPPER LEVEL TROUGH OVER THE EASTERN PACIFIC WEST OF 130 DEGREES WEST LONGITUDE.
WELL ESTABLISHED WSWRLY LOW LEVEL FLOW WILL CONTINUE TODAY AHEAD OF AN APPROACHING COLD FRONT. WE DECIDED TO GO A BIT ABOVE EVEN THE WARMER GUIDANCE. THE LOW LEVEL FETCH WILL NOT BE CONDUCIVE TO DEEP MOISTURE RETURN. THUS BY THE TIME THE COLD FRONT ARRIVES IN THE PAH FORECAST AREA ON TUE. BEHIND IT WILL BE A NOTICEABLY COOLER AIRMASS. IT IS POSSIBLE THAT THE DRY AIR BELOW 700 MB WILL BE OVERCOME BY INCREASING MOISTURE/LIFT ALOFT ASSOCIATED WITH A SLOWLY WEAKENING DEEP SOUTH LOW PRESSURE SYSTEM.
MEDIUM UNSEASONABLE WARMTH ACROSS SRN WI WILL BE REPLACED BY MORE NORMAL MID MARCH TEMPERATURES AS A COLD FRONT SWEEPS THROUGH THE AREA THIS EVENING. SURFACE/850 RIDGE AXIS REMAINS TO OUR WEST WHICH ALLOWS FOR PLENTY OF MIXING TO SUSTAIN A COOL NW BREEZE.
Upper low in virtually the same spot as it was yesterday, spinning away along the tip of Baja California. This low will begin to weaken and push towards West Central Texas tonight. Most of West Central Texas will be waiting for the main upper low itself to approach for the the best rain chances Tuesday night. In addition, a cold front moving through West Central Texas may be able to provide a little focus, especially in the afternoon across the Concho Valley and Northern Edwards Plateau, from San Angelo southwest to Ozona.
Latest satellite water vapor loop shows southern stream upper low spinning over Baja while a northern stream trough moves across the Canadian Prairies. An upper level ridge extends from the gulf coast into Nebraska. A surface cold front stretched from southern Minnesota to near Scotts Bluff Nebraska at 19Z. Tonight the cold front will move south into north central Kansas this evening, then proceed south across the rest of the area through the night.
THE SOUTHWESTERLY SURFACE FLOW WILL CONTINUE OVERNIGHT TONIGHT WHICH WILL KEEP TEMPERATURES WARMER TONIGHT THAN LAST NIGHT. TUESDAY WILL BE JUST AS WARM AS TODAY IF NOT A LITTLE BIT WARMER.
FROM 07Z ONWARD, THE COLD FRONT WILL SETTLE FROM KFNT SOUTH WITH LITTLE UPPER LEVEL SUPPORT. IN ADDITION, DEVELOPING LOW-LEVEL JET WILL INTRODUCE PROSPECTS FOR WIND SHEAR IN THE LOWEST 2KFT WHICH HAS BEEN INTRODUCED TO FORECAST FOR THE METRO AREA AIRFIELDS. IT WILL BE MUCH COOLER ON TUESDAY AS DIGGING UPPER LEVEL TROUGH ADVANCES INTO THE EASTERN GREAT LAKES. WILL BE CALLING FOR HIGHS PREDOMINATELY IN THE LOWER 40S. SPRAWLING HIGH PRESSURE (1030 MB) MOVING OVER CENTRAL GREAT LAKES TUESDAY NIGHT WILL SET US UP FOR COLD NIGHT WITH FAVORABLE RADIATING CONDITIONS.
332 PM CDT MON MAR 16 2015 UPPER LOW OVER BAJA WILL FILL AND MOVE ACROSS CNTL TX LATE TUE NIGHT AND WED BRINGING NEXT CHANCE OF SHRA & ISO TSRA ACROSS THE REGION. LOW/MID LEVEL RIDGE NOSING INTO THE AREA FROM THE GULF SHOULD KEEP PRECIP MOSTLY CONFINED TO EXTREME W AND N PARTS OF THE CWA TUE EVENING. RIDGE SLOWLY TRANSITIONS FURTHER EWD INTO THE GULF LATE TUE NIGHT & WED AND LFQ OF SPEED MAX APPROACHES FROM THE WEST. THE TROF AXIS THEN FURTHER FLATTENS WED EVENING AND HEADS OFF TO THE EAST. WITH THE CONTINUED S FLOW WE DO ANTICIPATE PERIODS OF SEA FOG WITH HIGHER DEWPOINT AIR MOVING OVER THE COOLER SHELF WATERS. NEXT TROF DROPS INTO MEXICO DURING THE 2ND HALF OF THE WEEK.
319 PM EDT MON MAR 16 2015 RETURN FLOW AROUND A DEPARTING HIGH AND A COLD FRONT DROPPING SOUTHEAST TO THE GREAT LAKES BROUGHT ABOVE NORMAL TEMPERATURES TODAY. THE COLD FRONT WILL PUSH SOUTH THROUGH THE AREA TONIGHT INTO TOMORROW MORNING.
412 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF COLD AIR AND WIND TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
416 PM EDT MON MAR 16 2015 HIGH PRESSURE WILL CROSS THE REGION THIS EVENING. LOW PRESSURE WILL DEVELOP IN THE GULF OF MAINE TUESDAY AND INTENSIFY IN THE CANADIAN MARITIMES TUESDAY NIGHT.
313 PM CDT MON MAR 16 2015 UPPER RIDGE AXIS IS ORIENTED JUST TO THE WEST OF TN THIS AFTERNOON. THE UPPER RIDGE IS EXPECTED TO FLATTEN OVER THE NEXT 24 HOURS. A COLD FRONT.
242 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF COLD AIR AND WIND TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
Combination of NWS and KY Mesonet observations reveal temperatures in the lower to middle 70s. Tonight, a cold front will push into the region from the northwest. Tuesday will likely be a bit breezy in the afternoon in the wake of the cold front passage. By evening, most locations are expected to be in the upper 40s to the lower 50s. High pressure will build into the region Tuesday night resulting in mostly clear skies.
IN ADDITION FOG WILL FORM OVERNIGHT IN THE HIGHER FOOTHILLS AND MOUNTAIN VALLEYS WITH A LOWER STRATUS DECK OVER THE PLAINS. THE LOWER CLOUDS WILL PERSIST THROUGH THE DAY AS SHALLOW UPSLOPE CONTINUES THROUGH TUESDAY AFTERNOON. TEMPERATURES WILL BE COOLER WITH HIGHS TOMORROW IN THE MID TO UPPER 50S.
111 PM EDT MON MAR 16 2015 A RIDGE OF HIGH PRESSURE MOVING ACROSS THE REGION WILL PROVIDE INCREASING CLOUDS AND DRY WEATHER TO THE NORTH COUNTRY TODAY ALONG WITH MILDER TEMPERATURES. A SERIES OF COLD FRONTS WILL BRING SCATTERED SNOW SHOWERS TONIGHT THROUGH TUESDAY NIGHT. EXCEPTION WILL BE THE NORTHEAST KINGDOM AS THE WARM FRONT NEVER REALLY GETS THERE, SO TEMPS WILL RUN ONLY A FEW DEGREES ABOVE THE FREEZING MARK IN THE LOW TO MID 30S. FOR TONIGHT, UPPER RIDGE SLIDES TO OUR EAST AS A DEEP LOW PRESSURE SYSTEM OVER JAMES BAY SLOWLY SINKS SOUTHEASTWARD. THE HIGHER SUMMITS OF THE NORTHERN GREENS COULD SEE UP TO 6".
LAST NIGHTS FRONT HAS STALLED SOUTH OF OUR AREA AND WEAK HIGH PRESSURE IS OVER THE AREA. WITH A COOLER AIR MASS OVER THE AREA TEMPERATURES ARE STARTING OUT OVER 10 DEGREES COOLER IN PLACES THAN YESTERDAY. AREAS IN THE SOUTH UNDER THE HEAVIER CLOUD COVER WILL BE 5-8 DEGREES COOLER THAN YESTERDAY. FURTHER NORTH UNDER THE CLEARER SKIES TEMPERATURES WILL BE SIMILAR TO YESTERDAY OR A DEGREE OR TWO WARMER. ONE EXCEPTION WILL BE SOME POSSIBLE MVFR CONDITIONS IMPACTING KRDM AND KBDN OVERNIGHT DUE TO THE LOWERING CEILINGS. WEAK UPPER LEVEL HIGH PRESSURE WILL BE OVER WASHINGTON AND NORTHERN OREGON TODAY. LAST NIGHT'S COLD FRONT HAS STALLED OVER SOUTHERN OREGON EARLY THIS MORNING. HIGH PRESSURE BEGINS TO BUILD OVER THE REGION TUESDAY NIGHT RESULTING IN A GRADUAL DECREASE IN SHOWER CHANCES.
UPPER LOW CONTINUES TO MOVE SOUTHEAST. WITH TROUGH DEALING A GLANCING BLOW TO MN/WI. ASSOCIATED COLD FRONT HAS MOVED THROUGH ENTIRE FORECAST AREA.
HIGH PRESSURE STARTS SHIFTING SOUTH OVERNIGHT AS AN UPPER LEVEL TROUGH MOVES IN FROM THE NNW. WITH THIS TROUGH THERE WILL BE A WEAK ACCOMPANYING COLD FRONT. THE MAIN ELEMENT THIS FRONT WILL BRING IS CLOUD COVER ANS SLIGHTLY COOLER TEMPS. MODELS APPEAR TO BE IN BETTER AGREEMENT ON TIMING THE WEAK UPPER LOW MOVING NE OUT OF THE SRN PLAINS STATES.
256 PM MDT MON MAR 16 2015 NEAR RECORD WARMTH WILL CONTINUE LATE THIS AFTERNOON AND AGAIN TUESDAY AFTERNOON THANKS TO THE REGION BEING UNDER THE CONTROL OF A STRONG RIDGE OF HIGH PRESSURE ALOFT. THE CUT OFF LOW OVER BAJA CALIFORNIA WILL BEGIN TO MOVE NORTHEAST TUESDAY AND AN UPPER LEVEL TROUGH RACING EAST ACROSS THE PACIFIC WILL WEAKEN AS IT CROSSES THE GREAT BASIN AND UTAH TUES NIGHT. INCREASING MID AND UPPER LEVEL MOISTURE ASSOCIATED WITH THESE TWO SYSTEMS WILL CONVERGE OVER EASTERN UT AND WESTERN CO GIVING THE HIGHER TERRAIN AT LEAST A SLIGHT CHANCE FOR SHOWERS BY TUESDAY NIGHT.
BUT A COLD FRONT WILL MOVE THROUGH IN THE MORNING RESULTING IN A WIND SHIFT FROM THE NORTH.
417 PM CDT MON MAR 16 2015 THE LOWER AND UPPER LEVEL HIGH PRESSURE CONTINUES TO INFLUENCE THE REGION TODAY. A CLOSED UPPER LEVEL LOW REMAINS OVER THE GULF OF CALIFORNIA AS THE UPPER LEVEL RIDGE BLOCKS IT. THIS LOW WILL PROVIDE OUR WEATHER LATER THIS WEEK. TEMPS WILL BE WARM AGAIN TOMORROW BEFORE THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN AND THE COLD FRONT MOVES THROUGH IN THE LATE AFTERNOON. AS THE RIDGE BREAKS DOWN. CLOUD COVER WILL START TO STREAM INTO THE REGION AND THE LOW PRESSURE IN THE GULF OF CALIFORNIA WILL BECOME AN OPEN WAVE IN THE SOUTHERN PLAINS. THE NAM AND GFS WERE A FASTER SOLUTION THAN THE ECMWF ON THE MOVEMENT OF THE LOW ACROSS THE SOUTHEASTERN STATES.
INCOMING PACIFIC SHORT WAVE TROUGH WILL ENHANCE PCPN ON THE SURFACE FRONTAL SYSTEM. LATE TONIGHT A WARM FRONT WILL EXTEND W-E FROM BAKER COUNTY INTO CENTRAL IDAHO. WITH A COLD FRONT FROM BAKER COUNTY SWWD TO NWRN NV. THE COLD FRONT AND SHOWERS WILL MOVE EWD INTO IDAHO ZONES TUESDAY MORNING. CLEARING FROM THE SW AND COOLER TUESDAY NIGHT.
THE FRONTAL BOUNDARY WILL MOVE LITTLE TONIGHT, THEN FINALLY KICKS NORTHEAST AS AN UPPER TROUGH APPROACHES FROM THE WEST. THIS TROUGH WILL BRING LIGHT RAIN SHOWERS MAINLY ALONG AND NORTH OF THE UMPQUA DIVIDE AND NORTH OF CAPE BLANCO. AFTER TUESDAY, THE WEATHER WILL BE RATHER QUIET WITH DRY AND WARMER CONDITIONS EXPECTED.
AS THE HIGH EXITS TUE NIGHT ANOTHER LOW MOVES OFF THE ROCKIES INTO THE PLAINS.
HIGH PRESSURE WILL CONTINUE TO DOMINATE TODAY. HIGH CLOUDS SHOULD AGAIN INCREASE THIS AFTERNOON AS MORE HIGH LEVEL MOISTURE ROTATES AROUND THE TOP OF THE RIDGE AND INTO THE FORECAST AREA FROM THE NORTH. IN SPITE OF THE HIGH CLOUDS. ON TUE A NORTHERN BRANCH COLD FRONT WILL PUSH UP AGAINST THE FRONT RANGE TO OUR EAST. ALSO MOISTURE WILL BEGIN TO BE DRAWN UP FROM THE SOUTH AS THE SOUTHERN BAJA LOW PRESSURE SYSTEM OPENS UP AND MOVES INTO CHIHUAHUA. THE INCREASED CLOUDS MAY SHAVE A COUPLE DEGREES OFF THE HIGH TEMPERATURES.