Aikyam-Lab/Synoptic-Bench huggingface dataset:
AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BE OVER THE REGION TONIGHT. THE RIDGE OF HIGH PRESSURE WILL CONTINUE BUILDING INTO THE NORTHERN ROCKIES ON SUNDAY WITH DAYTIME HIGH TEMPERATURES REMAINING ABOVE SEASONAL AVERAGES. A PACIFIC COLD FRONT WILL MOVE ACROSS THE REGION ON MONDAY BRINGING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS DURING THE AFTERNOON AS WELL AS GUSTY WINDS.
342 AM MDT SUN APR 3 2016 AN UPPER LEVEL RIDGE AXIS WILL BE TO THE WEST OF THE AREA TODAY AND TONIGHT. TEMPS TODAY WILL BE A LITTLE WARMER THAN YESTERDAY AND WILL BE AROUND 10 DEGREES ABOVE AVERAGE ACROSS THE SOUTHEAST PLAINS AND 5- 10 DEGREES ABOVE AVERAGE IN THE SAN LUIS VALLEY AND THE UPPER ARKANSAS RIVER VALLEY.
524 AM EDT SUN APR 3 2016 A STRONG COLD FRONT HAS BROUGHT SNOW AND HIGH WINDS TO THE REGION OVERNIGHT.
336 AM EDT SUN APR 3 2016 A FAIRLY SHORT DISCUSSION TODAY AS A COLD FRONT IS MOVING THROUGH THE AREA. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT. THE EXCEPTIONS ARE EASTERLY FLOW AROUND HIGH PRESSURE MAY BRING SOME COASTAL SHOWERS MID WEEK AND ANOTHER FRONTAL PASSAGE FOR THE END OF THE WEEK. THESE SLIGHTLY COOLER AIR MASSES THAT WILL BE MOVING IN BEHIND THE TWO FRONTAL PASSAGES WILL KEEP THE HIGH TEMPERATURES MAINLY IN THE 70S AND LOW 80S ACROSS SOUTH FLORIDA FOR THE WEEK. A DIFFUSE COLD FRONT. A COLD FRONT IS BRINGING A FRESH TO STRONG NORTHERLY BREEZE TO THE SOUTH FLORIDA WATERS THIS MORNING.
THERE WILL BE A BRIEF PERIOD OF TIME AROUND SUNRISE WHERE THE HIGHEST ELEVATIONS WILL SEE A BOOST IN WINDS AS THE INVERSION DROPS TO JUST ABOVE RIDGETOP AND VERTICAL WIND SHEAR DECREASES SLIGHTLY. ACCELERATING THE ALREADY STRONG RIDGETOP WINDS. WINDS WILL SUBSIDE AND CLOUD COVERAGE WILL DECREASE DURING THE DAY AS COLD HIGH PRESSURE CROSSES THE AREA. TROUGH ON SUNDAY NIGHT. HAVE THE HIGHER POPS ACROSS THE NORTHERN COUNTIES INITIALLY. DRIVING A COLD FRONT SOUTHWARD AND BRINGING BACK COLD ADVECTION. WITH PERHAPS A DUSTING OF ACCUMULATION ON THE SOUTHEAST RIDGES. SKIES WILL BEGIN TO CLEAR OUT OVERNIGHT AS HIGH PRESSURE APPROACHES FROM THE WEST BEHIND THE DEPARTING H500 TROUGH.
FREEZING TEMPERATURES ACROSS THE AREA WILL GIVE WAY TO A WARMER AND BREEZY AFTERNOON.
404 AM CDT SUN APR 3 2016 FAST MOVING LOW PRESSURE SYSTEM WILL DROP SOUTH INTO SOUTHERN MN THROUGH THE DAY TODAY. MIXING WILL BRING MUCH WARMER TEMPERATURES. COLD FRONT WILL BE MAKING ITS WAY THROUGH SRN IA AT ONSET ENDING THE ABOVE NORMAL TEMPERATURES. WITH SHORT WAVE RIDGING AND SUBSIDENCE THE WEEK WILL START WITH FAIR WEATHER AND SEASONAL TEMPERATURES. ALTHOUGH TEMPS MAY BEGIN TO REBOUND AGAIN INTO SAT WITH LONG WAVE PATTERN STARTING TO TRANSITION AND RIDGING APPROACHING. BACKING TO THE W/NW IN THE AFTERNOON AS A COLD FRONT PUSHES THROUGH.
247 AM CDT SUN APR 3 2016 A cool morning is underway, with light north winds across the region behind a weak cold front that passed through the area yesterday. Winds then become southwesterly and increase considerably into the afternoon, helping to set the stage for a much warmer day today, as temperatures warm into the 70s. Another weak, dry cold front will pass through the area late tonight. The only appreciable affect from this front will be slightly cooler temperatures on Monday, and a switch to northerly winds. As mentioned above, temperatures on Monday will be slightly cooler compared to today, especially over central Missouri, where readings will be knocked back into the mid 60s.
THE UPPER RIDGE THAT BROUGHT US THE WARM WEATHER OVER THE LAST FEW DAYS IS EDGING EAST THIS MORNING, AND A COLD FRONT IS APPROACHING 130W. THE AIRMASS BEHIND THE FRONT IS FAIRLY CHILLY, SO MONDAY WILL BE NOTICEABLY COOLER IN ALL AREAS.
HIGHS TODAY WL TOP OUT IN THE LOWER AND MID 70S AT MOST LOCATIONS. COOLER AIR BEHIND THE FNT WL BE FELT MAINLY ACRS THE NERN PART OF THE STATE MON NGT.
Have highs ranging from the lower 80s at Medicine Lodge to the upper 70s by Scott City. For Monday, a weak backdoor cold front traverses the region.
TODAY THROUGH MONDAY NIGHT UPPER LEVEL ANALYSIS SHOWS BROAD RIDGING OVER THE WESTERN CONUS. HIGHS WILL RANGE FROM THE LOWER 60S ACROSS NORTHEASTERN WY AND NORTHWESTERN SD. TO THE LOWER 70S ACROSS SOUTH CENTRAL SD. LOWS TONIGHT WILL BE IN THE 30S AS BACKDOOR COLD FRONT PUSHES INTO WESTERN SD. UPPER RIDGE WILL SHIFT EASTWARD OVER THE ROCKIES AS NEXT UPPER TROUGH PUSHES INTO THE PACIFIC NORTHWEST. HIGHS WILL RANGE FROM THE LOWER 60S ACROSS CENTRAL SD WHERE THE COOLER AIRMASS LINGERS. TO THE LOWER 70S ACROSS SOUTHWEST SD AND PARTS OF NORTHEASTERN WY AS WAA ENSUES AHEAD OF THE LOW.
425 AM MDT SUN APR 3 2016 HIGH PRESSURE OVER THE GREAT BASIN WILL KEEP WARM AND MOSTLY DRY CONDITIONS IN PLACE THROUGH MONDAY. THE EXCEPTION TO THE DRY WILL BE A FEW HIGH BASED CONVECTIVELY DRIVEN SHOWERS THAT DEVELOP OVER THE HIGHER TERRAIN OF NORTHEAST UTAH THIS AFTERNOON AND EARLY EVENING. ACTIVITY PICKS UP JUST A NOTCH ON MONDAY AS WE SEE THE RIDGE AXIS MOVE EAST WITH SOUTHWEST FLOW DEVELOPING. BUT ALSO BRINGS IN A LITTLE WARMER AIR ALOFT.
AS A COLD FRONT DEPARTS CENTRAL INDIANA THIS EVENING. DRY WEATHER IS EXPECTED AS A COLD HIGH PRESSURE SYSTEM BUILDS ACROSS INDIANA. THE HIGH WILL PROVIDE DRY WEATHER FOR SUNDAY. HOWEVER IT WILL QUICKLY DEPART AS A SMALL BUT FAST MOVING AREA OF LOW PRESSURE ARRIVES FROM THE UPPER MIDWEST ON SUNDAY NIGHT AND MONDAY.
632 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD IN THIS AFTERNOON. A DRY COLD FRONT WILL COME THROUGH MONDAY NIGHT.
HIGH PRESSURE WILL RESIDE ACROSS THE GREAT BASIN TODAY.
212 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD IN THIS AFTERNOON. A DRY COLD FRONT WILL COME THROUGH MONDAY NIGHT.
HIGH PRESSURE WILL BUILD INTO THE REGION FROM THE WEST TODAY. A DRY COLD FRONT IS EXPECTED TO CROSS THE CAROLINAS MONDAY NIGHT. AS THE UPPER TROUGH PROGRESSES OFFSHORE. EXPECT DRY CONDITIONS WITH AFTERNOON HIGHS IN THE LOWER 70S AND CLEAR SKIES BECOMING PARTLY CLOUDY IN THE N/NW PIEDMONT AFTER SUNSET. A BRIEF WINDOW FOR SHOWERS MAY EXIST NORTH OF HWY 64 BETWEEN 8 PM MON / 2 AM TUE AS A COLD FRONT PROGRESSES THROUGH CENTRAL NC IN ADVANCE OF DPVA ASSOC WITH A PROGRESSIVE UPPER LEVEL TROUGH TRACKING EAST ACROSS THE MID- ATLANTIC. LOWS WILL BE DRIVEN BY THE TIMING/ MAGNITUDE OF COLD ADVECTION IN THE WAKE OF THE COLD FRONT MON EVENING.
AM CONCERNED THAT DEWPOINTS COULD REMAIN IN THE LOWER 30S OR EVEN MIX INTO THE UPPER 20S SOUTH OF INTERSTATE 80 AS INDICATED BY LATEST RAP/HRRR MODELS. COLD FRONT CONTINUES TO SWEEP INTO THE AREA TONIGHT WITH NORTHERLY WINDS BEHIND IT. THIS RESULTS IN A COOLER DAY MONDAY WITH HIGHS CLOSER TO NORMAL IN THE 50 AND 60S WITH RELATIVELY POOR MIXING AND WEAK NORTH NORTHEASTERLY SURFACE FLOW. MODELS STILL ADVERTISE A WEAK PIECE OF ENERGY TOPPING THE RIDGE THAT BE IN PLACE ACROSS THE PLAINS MONDAY NIGHT.
FLOW ALOFT WILL REMAIN WEAKLY CYCLONIC THROUGH TODAY AS A TROUGH OVER THE EAST COAST CONTINUES TO LIFT NORTHEASTWARD. A COLD FRONT WILL CONTINUE TO SHIFT OUT OF THE AREA WITH HIGH PRESSURE BRINGING IN A COOLER AND DRIER AIR MASS. WITH HIGH PRESSURE REMAINING OVER THE GULF OF MEXICO. REALLY SHOULD BE A FAIRLY QUIET DAY WITH NO RAIN IN THE FORECAST AND TEMPERATURES MONDAY AFTERNOON A FEW DEGREES WARMER THAN THOSE FOR TODAY.
LIGHT SOUTHERLY WINDS TONIGHT WILL KEEP LOW TEMPS IN THE LOWER TO MID 50S.
HIGH PRESSURE IS OVER THE AREA THIS MORNING WITH MOST LOCATIONS AWAY FROM THE IMMEDIATE COAST EXPERIENCING TEMPERATURES AROUND 10 DEGREES BELOW EARLY APRIL NORMALS AND CALM WINDS. THE RIDGE WILL CONTINUE TO PROVIDE PLEASANT WEATHER FOR THE REMAINDER OF THE WEEKEND AS IT MOVES ACROSS THE AREA, HOWEVER AS THE RIDGE MOVES EAST THE RETURN FLOW WILL BEGIN TO SET UP.
BREEZY WEST TO SOUTHWEST WINDS AND WARM AIR ADVECTION AHEAD OF THE LOW. WILL COME TO A HALT AS THE LOW PASSES THROUGH AND WINDS SHIFT TO THE NORTHWEST. WHILE BEHIND THE LOW A POTENTIAL AREA OF LIGHT SHOWERS WAS SEEN PER CANADIAN RADAR LOOP. HIGH TEMPERATURES WILL RANGE FROM THE LOW TO MID 60S SOUTH. TRANSITORY UPPER RIDGE SLIDES INTO WESTERN AND CENTRAL NORTH DAKOTA MONDAY FOR A DRY AND WARM DAY. DEEP UPPER TROUGH PUSHES OVER THE ROCKIES MONDAY NIGHT AND CLOSES OFF AS IT MOVES ALONG THE INTERNATIONAL BORDER. WARMER AIR ALOFT LIFTS IN AHEAD OF THE SYSTEM WITH CHANCES OF RAIN SPREADING THROUGH THE AREA.
WITH DRY NORTHWEST FLOW AND STEEP MID-LEVEL HEIGHT RISES DUE TO RIDGING BUILDING IN.
LIGHT AND VARIABLE WINDS WILL PERSIST THROUGH THE NIGHT INCREASING ONLY SLIGHTLY AFTER SUNRISE AS HIGH PRESSURE BECOMES CENTERED OVER THE NORTHERN GULF. INSERTED A SCEC HEADLINE OVER THE 20-60NM ZONE FROM THE LOWER ATCHAFALAYA TO INTRACOASTAL CITY FOR THE REST OF TONIGHT FOR WINDS IN THE 15 TO 20 KT RANGE. GUSTY WINDS WILL DIMINISH SHORTLY AFTER SUNSET THIS EVENING AND WILL REMAIN LIGHT AND VARIABLE THROUGH THE DAY SUNDAY AS HIGH PRESSURE BECOMES CENTERED ACROSS THE REGION.
SO LOWS ACROSS THE AREA STILL COULD DROP TO THE LOW TO MID 30S. TEMPS SHOULD REBOUND QUICKLY TODAY TO YIELD HIGHS IN THE LOW TO MID 60S. SO FIRE WEATHER CONCERNS WILL BE CONFINED TO THE LOW MIN RH VALUES.
UPPER LEVEL RIDGE SLOWLY BEGINS TO BREAK DOWN. MOISTURE IS STILL SOMEWHAT LIMITED AS THE UPPER LEVEL LOW IS NOT OVER THE FORECAST AREA UNTIL MON AFTERNOON. BY MON NIGHT THE COLDER AIR BEHIND THE ASSOCIATED COLD FRONT LOWERS SNOW LEVELS TO THE 5000 FT ELEVATION OR SO. THEN A COOLING TREND WITH THE LOW.
AS THE HIGH PRESSURE RIDGE BUILDS IN TODAY THIS GRADIENT WILL WEAKEN AND SHOULD SEE WINDS DIMINISH TO 10KT OR LESS BY THE AFTERNOON. TEMPS ARE STILL FALLING THIS MORNING BUT WITH WINDS STAYING UP ITS NOT LOOKING LIKE WE WILL BE ABLE TO GET TEMPS DOWN INTO THE LOWER 30S TO MEET FREEZE WARNING CRITERIA. THE RIDGE CONTINUES ACROSS THE AREA THROUGH THE SHORT TERM KEEPING THE REGION CLEAR AND DRY.
UPPER LEVEL RIDGE SUNDAY WITH PARTLY TO MOSTLY SUNNY SKIES FOR MUCH OF THE DAY. APPROACHING UPPER LEVEL TROUGH AND COLD FRONT WILL BRING INCREASING CLOUDS LATE IN THE DAY. MUCH COOLER MONDAY AS WELL WITH HIGHS DOWN 10-20 DEGREES FROM THE WEEKEND. CEILINGS LOWERING IN THE AFTERNOON AND EVENING TO 060-120 WITH APPROACHING COLD FRONT. THE SYSTEM'S COLD FRONT SHOULD BE THROUGH THE AREA BY LATE MORNING MONDAY.
328 AM CDT SUN APR 3 2016 HIGH PRESSURE OVER THE REGION TODAY WILL MOVE EAST THROUGH MONDAY. THIS WILL ALLOW FOR A CONTINUATION OF DRY WEATHER CONDITIONS ALONG WITH WARMER TEMPERATURES. HIGHS TODAY WILL RANGE FROM THE MID 60S OVER NORTHWEST TENNESSEE TO THE LOWER 70S OVER THE DELTA REGION. TEMPERATURES TONIGHT WILL REMAIN MILD IN THE 50S WITH EVEN WARMER CONDITIONS MONDAY WITH MOST LOCATIONS INTO THE LOWER TO MIDDLE 70S.
422 AM MDT SUN APR 3 2016 THE STRONG UPPER LEVE RIDGE OVER THE WESTERN U. RELATED TO THIS MINOR DISTURBANCE PASSING THROUGH THE UPPER LEVEL RIDGE. MODELS HAVE AN UPPER RIDGE OVER THE CWA FLATTENING OUT ON MONDAY INTO MONDAY NIGHT WITH ZONAL FLOW ALOFT.
WARM AGAIN TODAY AS UPPER RIDGE AXIS SHIFTS TO OUR EAST AND FLOW ALOFT BACKS FROM WESTERLY TO SOUTHWESTERLY.
359 AM CDT SUN APR 3 2016 FAST MOVING LOW PRESSURE SYSTEM WILL DROP SOUTH INTO SOUTHERN MN THROUGH THE DAY TODAY. MIXING WILL BRING MUCH WARMER TEMPERATURES. COLD FRONT WILL BE MAKING ITS WAY THROUGH SRN IA AT ONSET ENDING THE ABOVE NORMAL TEMPERATURES. WITH SHORT WAVE RIDGING AND SUBSIDENCE THE WEEK WILL START WITH FAIR WEATHER AND SEASONAL TEMPERATURES. ALTHOUGH TEMPS MAY BEGIN TO REBOUND AGAIN INTO SAT WITH LONG WAVE PATTERN STARTING TO TRANSITION AND RIDGING APPROACHING. BACKING TO THE W/NW IN THE AFTERNOON AS A COLD FRONT PUSHES THROUGH.
LOW PRESSURE OVER SOUTHERN SASKATCHEWAN WILL CONTINUE TO SLIDE SOUTH AND EAST TONIGHT. TEMPERATURES ALONG AND EAST OF THE HIGHWAY 83 CORRIDOR HAVE BEEN DROPPING QUICKLY THIS EVENING. A WARM FRONT ACROSS WESTERN NORTH DAKOTA EARLY THIS AFTERNOON WILL CONTINUE TO MOVE EAST THROUGH THE EVENING AS A CLIPPER IN EASTERN ALBERTA MOVES SOUTHEAST INTO FAR SOUTHEAST NORTH DAKOTA BY EARLY SUNDAY MORNING.
406 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH MONDAY. A DRY COLD FRONT WILL MOVE THROUGH LATE MONDAY NIGHT.
FORECASTED UPPER RIDGE WILL CONTINUE TO SHIFT EASTWARD OFF THE ROCKIES. OFF OF LOWS TONIGHT THAT WILL RANGE FROM THE MID 30S TO THE LOW 40S.
WINDS WILL BACK TO THE SOUTHWEST AHEAD OF ANOTHER CLIPPER SYSTEM ALLOWING HIGHS TODAY TO CLIMB TO NEAR 50 DEGREES AS SOMEWHAT WARMER AIR SPREADS BACK INTO THE AREA. COLD FRONT SWEEPING THROUGH THE AREA THIS AFTERNOON AND SHOULD CLEAR THE SOUTHEAST THIS EVENING.
A COLD FRONT IS PUSHING SOUTHWARD ACROSS THE AREA AT THE MOMENT. WHICH HAVE KEPT TEMPERATURES WARMER THAN FORECAST. HIGH PRESSURE WILL DRIFT FROM WEST TN TO THE DEEP SOUTH THROUGH THE DAY. TEMPERATURES TONIGHT SHOULD STAY ABOVE FREEZING WITH A LIGHT SW WIND MAINTAINING SOME MIXING.
THEN HIGH PRESSURE WILL BRING DRY CONDITIONS AND MUCH WARMER TEMPERATURES BY THE MIDDLE OF THE WEEK.
A weak ridge of high pressure aloft is edging into the area from the northwest. The warming trend will continue on Monday with highs across west central Texas in the low to mid 80's with mostly clear skies.
/ISSUED 302 AM CDT SUN APR 3 2016/ AN UPPER LEVEL TROF WILL MOVE OVERHEAD TODAY WHICH WILL ALLOW WINDS TO BE QUASI GUSTY. TEMPS WILL BE WARMER TODAY ON THE ORDER OF 5 TO 10 DEGREES THANKS TO SOUTHWESTERLY WINDS AND A SURFACE THERMAL RIDGE IN CLOSE PROXIMITY TO THE REGION. ALONG THE AXIS OF THE THERMAL RIDGE. THE THERMAL RIDGE WILL PUSH SOUTHWARD BY TONIGHT AND WILL KEEP LOWS RELATIVELY MILD. ALDRICH NORTHWEST FLOW ALOFT WILL BE THE RULE ON MONDAY AS NEGATIVELY TILTED TROUGH COMES ASHORE THE PACIFIC NORTHWEST.
UPSTREAM AN UPPER LEVEL RIDGE IS MOVING INTO THE PACIFIC NORTHWEST AHEAD OF A HIGH AMPLITUDE BUT SMALL TROUGH MOVING EASTWARD IN THE EASTERN PACIFIC. WEAK COLD FRONT ALSODROPPING THROUGH THE AREA THIS AFTERNOON BUT THIS IS WEAKENING AS THE HEIGHTS BEGIN TO BUILD. WILL BE A COOLER DAY DUE TO MORE CLOUD COVER AND LESS OF A DOWNSLOPE WIND COMPONENT. RIDGE AXIS MOVES INTO THE AREA TONIGHT TO CALM THE SHOWER ACTIVITY AND IT REACHES THE EASTERN MONTANA BORDER BY MONDAY AFTERNOON. THIS WILL BRING WARMER TEMPERATURES BUT A STRONG COLD FRONT ARRIVES ON ITS HEELS MONDAY AFTERNOON AND EVENING.
302 AM CDT SUN APR 3 2016 AN UPPER LEVEL TROF WILL MOVE OVERHEAD TODAY WHICH WILL ALLOW WINDS TO BE QUASI GUSTY. TEMPS WILL BE WARMER TODAY ON THE ORDER OF 5 TO 10 DEGREES THANKS TO SOUTHWESTERLY WINDS AND A SURFACE THERMAL RIDGE IN CLOSE PROXIMITY TO THE REGION. ALONG THE AXIS OF THE THERMAL RIDGE. THE THERMAL RIDGE WILL PUSH SOUTHWARD BY TONIGHT AND WILL KEEP LOWS RELATIVELY MILD. ALDRICH NORTHWEST FLOW ALOFT WILL BE THE RULE ON MONDAY AS NEGATIVELY TILTED TROUGH COMES ASHORE THE PACIFIC NORTHWEST.
SHARP NEGATIVELY TILTED TROUGH CONTINUES TO PUSH OFF TO THE EAST THIS MORNING. MID AND UPPER LEVEL FLOW WILL BECOME MORE ZONAL AHEAD OF NEXT APPROACHING TROUGH THAT WILL DROP SOUTHWARD OUT OF CANADA AND INTO THE OHIO VALLEY BY THE END OF THE SHORT TERM WINDOW. FREEZING TEMPS GENERALLY APPEAR ON TRACK THIS MORNING WITH STRONG CAA. EXCEPTION WILL BE OUR COOLER EASTERN VALLEY AREAS WHERE DRY AIR AND AN EARLY NOCTURNAL INVERSION THIS EVENING WILL LIKELY PRODUCE COLDER LOWS IN THE MID 30S. AN ISOLATED LOCATION OR TWO MAY FLIRT WITH THE FREEZING MARK.
Even so, winds have been slow to die off, which has kept temperatures above freezing thus far. Elsewhere, temps appear on track to fall below freezing in sw Indiana and se Illinois. Dew points remain in the lower to mid 20s in most places, which is likely too dry for much in the way of frost. As the high moves to the east, winds will increase from the southwest today.
WEAK HIGH PRESSURE WILL BUILD OVER THE AREA TODAY. A COLD FRONT WILL PASS THROUGH THE AREA MONDAY AFTERNOON. HIGH PRESSURE WILL SHIFT ACROSS THE AREA THROUGH MIDWEEK. YET ANOTHER COLD FRONT CROSSES LATE IN THE WEEK. A FEW SNOW SQUALLS HAVE MADE AS FAR EAST AS DULLES ARPT BUT SOON WILL BEGIN TO DISSIPATE AS INVERSION HEIGHTS LOWER DUE TO INCREASING SUBSIDENCE BEHIND DEPARTING TROUGH.
HIGH TEMPERATURES TODAY WILL BE IN THE LOW TO MID 80S UNDER MOSTLY SUNNY SKIES. LIGHT SOUTHEASTERLY FLOW TONIGHT WILL KEEP OVERNIGHT TEMPERATURES A FEW DEGREES WARMER. MONDAY WILL BE WARMER WITH HIGH TEMPERATURES IN THE MID TO UPPER 80S. EXCEPT THE LOWER 80S NEAR THE COAST.
UPPER LEVEL RIDGING BUILDS IN FROM THE WEST BY MONDAY. SLOW MOISTURE RETURN WITH PWS REMAINING 1/2 INCH OR LESS DUE TO WEAK RESIDUAL SURFACE RIDGING ALLOWS FOR ANOTHER NIGHT OF BELOW NORMAL LOW TEMPERATURES TONIGHT. A SOUTHWESTERLY FLOW ABOVE THE SURFACE WITH A THERMAL RIDGE DEVELOPING MAKES HIGH TEMPERATURES ABOVE NORMAL ON MONDAY.
THE BLEND OF GUIDANCE WAS A DEGREE OR TWO COOLER. STRONG NORTHWEST WINDS FAVOR THE WARMER RAP MODEL TEMPERATURE FORECAST. A WEAK COLD FRONT SHOULD BACK PART WAY INTO THE FCST AREA TONIGHT.
633 AM EDT SUN APR 3 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW FREEZING TEMPERATURES ACROSS THE AREA WILL GIVE WAY TO A WARMER AND BREEZY AFTERNOON.
333 AM CDT SUN APR 3 2016 A broad upper level ridge was located across the western US with a deep upper trough located across New England. Tonight, An upper level trough across southern Canada will dig southeast into the upper midwest. The resulting low-level CAA across the northern and central plains will cause a cold front to push southeast across the CWA Tonight. As a result, expect dry and cooler conditions (yet still above the seasonal normals) with highs in the mid 60s to low 70s.
THE COLD FRONT WHICH HAS TAKEN ITS TIME TRAVERSING THE GULF OF MEXICO IS ON OUR DOORSTEP. PATCHES OF STRATIFORM RAIN HAVE WETTED THE LOWER KEYS.
1119 PM MDT SAT APR 2 2016 OVER NIGHT HIGH PRESSURE WILL CONTINUE TO DOMINATE THE WEATHER WITH BREEZY AREAS DEVELOPING ALONG AND NEAR THE EAST SLOPES OF THE MOUNTAINS AS A LEE SIDE TROUGH DEVELOPS. A WEAK UPPER LEVEL LOW PRESSURE TROUGH WITH LIMITED PACIFIC MOISTURE WILL BRING INCREASED CLOUDS WITH SCATTERED RAIN AND SNOW SHOWERS.
ACCUMULATING SNOW AND STRONGEST WINDS WILL DIMINISH BY LATER SUNDAY MORNING INTO EARLY AFTERNOON AS THE PRESSURE GRADIENT QUICKLY RELAXES IN THE BRIEF PERIOD OF HIGH PRESSURE WE WILL ENJOY AHEAD OF THE NEXT SYSTEM IN THE WAVE TRAIN.
CONTINUED NORTHWEST FLOW ALOFT WILL CAUSE A COUPLE OF WEAK DRY COLD FRONTS TO TRY AND SLIP SOUTH INTO THE REGION DURING THE PERIOD. HIGHS MONDAY AFTERNOON WILL BE A TAD WARMER AS THEY TOP OUT IN THE MIDDLE 70S AREAWIDE. LOWS MONDAY NIGHT WILL BE A BIT WARMER AS THEY RANGE FROM THE MIDDLE 40S TO LOWER 50S.
418 AM CDT SUN APR 3 2016 WARM FRONT HAS MADE STEADY PROGRESS ACROSS THE CWA DURING THE OVERNIGHT HOURS AND IS APPROACHING BIG STONE AND TRAVERSE COUNTIES. THE JAMES VALLEY AS WELL AS EVERYONE ELSE WILL SEE QUICKLY RISING TEMPERATURES AS WINDS/MIXING INCREASES AND THE THERMAL RIDGE SLIDES OVERHEAD WITH ITS WARM 925/850 MB TEMPS. THIS LOOKS TO BRING A FAIRLY DECENT CHANCE FOR SHOWERS AND THUNDERSTORMS LATE MONDAY NIGHT OVER THE EASTERN CWA WITHIN THE ZONE OF THE LOW LEVEL JET.
1204 AM MDT THU SEP 17 2015 UPDATED AVIATION SECTION INCREASED POPS ALONG THE HILINE AND INTO CENTRAL MONTANA THIS EVENING AS SOME SHOWERS ARE BEGINNING TO DEVELOP AND MOVE ACROSS THE REGION AS THE TROUGH AXIS COMES INTO THE AREA. AS OF 2:30 PM, A BROAD AREA OF SHOWERS, AND A FEW WEAK, ISOLATED THUNDERSTORMS IN BEAVERHEAD/MADISON COUNTIES, WERE MOVING EASTWARD JUST AHEAD OF THE TROF AXIS. AS THE TROF AXIS MOVES ACROSS THE REGION THIS EVE/TONIGHT, WE'LL SEE GRADUALLY CLEARING SKIES OVER THE CENTRAL AND HILINE COUNTIES WHICH WILL LEAD TO AREAS OF PATCHY FOG TOMORROW MORNING FOR LOCATIONS IN THE CENTRAL MT. THE CLEARING SKIES WILL ALSO ALLOW TEMPERATURES TO DROP INTO THE LOW- MID 30S TONIGHT, CREATING LIGHT FROST IN SOME LOCATIONS.
359 AM EDT THU SEP 17 2015 A LARGE AREA OF HIGH PRESSURE ALONG THE EAST COAST WILL WEAKEN AND MOVE EAST THIS WEEKEND.
A WEAK UPPER LEVEL LOW IS CURRENTLY SPINNING ACROSS THE SOUTHWEST AS SEEN ON CURRENT WATER VAPOR IMAGERY. THIS IS WHY MOST OF THE AREA IS SEEING NOTHING MORE THAN AN INCREASE IN CLOUD COVER IN ASSOCIATION WITH THIS UPPER LEVEL LOW. HIGH PRESSURE IS IN PLACE ACROSS THE MID-ATLANTIC WITH A LEE CYCLONE TO THE NORTHWEST. THE ACTIVITY HAS ALREADY BEEN LIMITED TODAY AND THE WEAK UPPER LEVEL LOW SHOULD CONTINUE TO SLOWLY PROGRESS TO THE EAST. THE UPPER LEVEL RIDGE WILL BEGIN TO WORK INTO THE AREA FROM THE NORTHWEST. THE UPPER LEVEL RIDGE BUILDS INTO THE AREA WITH HEIGHTS INCREASING EACH DAY.
121 AM EDT THU SEP 17 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH FRIDAY NIGHT.
349 AM EDT THU SEP 17 2015 FROM SATELLITE INTERROGATION WE FIND A WEAK AREA OF LOW PRESSURE OVER THE EASTERN GULF OF MEXICO EMBEDDED IN AN MUCH LARGER ELONGATED TROUGH STRETCHING ALONG THE EAST COAST FROM NEW JERSEY TO THE YUCATAN PENINSULA. MEANWHILE ON RADAR WE FIND AREAS OF LIGHT RAIN SPREADING EASTWARD FROM THE TORTUGAS TO THE LOWER KEYS. ESPECIALLY ACROSS THE LOWER AND MIDDLE KEYS. THE RIDGE OVER THE MID ATLANTIC COAST WILL WEAKEN.
130 AM EDT THU SEP 17 2015 DRY HIGH PRESSURE WILL KEEP OUR WEATHER QUIET AND WARM INTO THE START OF THE WEEKEND.
431 AM EDT THU SEP 17 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH FRIDAY.
CANADIAN HIGH PRESSURE NOSING INTO THE CWA THURSDAY WILL ALLOW FOR MORE AVERAGE DAYTIME TEMPERATURES. MODELS CONTINUE TO GENERATE A RATHER PROMINENT QPF BULLSEYE WEST RIVER INTO CENTRAL COUNTIES FRIDAY IN THE VICINITY OF AN INVERTED TROF. HIGH PRESSURE WILL BE CENTERED OVER NEBRASKA WHEN THE PERIOD BEGINS.
PERSISTENT MID/UPPER LEVEL TROUGH ACROSS THE SOUTHEAST WILL GRADUALLY WEAKEN AND BEGIN TO LIFT OUT TO THE NORTHEAST. COASTAL TROUGH/WEAK LOW AND ITS ASSOCIATED MOISTURE WILL BEGIN TO SHIFT EAST/NORTHEAST THURSDAY INTO FRIDAY. EXCEPT COOLER IN THE ERN PORTION OF THE CWA DUE TO ADDITIONAL CLOUDS ON THURSDAY. HIGH PRESSURE WILL REMAIN THE DOMINATE FEATURE THROUGH THE WEEKEND.
UPPER LEVEL TROUGH REMAINS OVER THE AREA FOR THE NEXT 24 HOURS. HAVE REDUCED POPS CHANCES SIGNIFICANTLY ACROSS THE LOWER ELEVATIONS. TOTAL RAINFALL TODAY LOOKS TO BE AROUND A QUARTER OF AN INCH FOR THE HIGHER ELEVATIONS AND A TRACE TO AROUND A TENTH OF AN INCH FOR THE LOWER ELEVATIONS.
334 AM CDT THU SEP 17 2015 COLD FRONT IS MAKING ITS WAY EAST ACROSS THE CWA EARLY THIS MORNING WITH STILL SOME ISO/WDLY SCT LIGHT SHOWERS OVER THE AREA AS WELL. HIGHS WILL BE COOLER AS 850 MB TEMPS GO DOWNWARD THROUGH THE DAY.
LARGE SCALE TROUGHING ACROSS MUCH OF THE WESTERN U.
A LOW PRESSURE TROUGH IN THE WEST WILL WEAKEN AND BE REPLACED BY A RIDGE OF HIGH PRESSURE THROUGH THE END OF THE WEEK. THE RIDGE WILL BRING SUNNY AND WARMER DAYS THROUGH THE WEEKEND.
511 AM CDT THU SEP 17 2015 THIS MORNING AN UPPER LEVEL RIDGE OF HIGH PRESSURE WAS CENTERED OVER WEST TEXAS NEAR THE BIG BEND AREA AND EXTENDED EAST AND NORTHEAST ACROSS THE FOUR STATE REGION AND INTO THE TENNESSEE VALLEY. OVER THE NEXT COUPLE OF DAYS THIS RIDGE WILL REMAIN OVER THE AREA WITH A GRADUAL WEAKENING AS A SERIES OF UPPER LEVEL SHORT WAVES MOVING AROUND A UPPER LEVEL TROUGH OF LOW PRESSURE ROUND THE NORTHERN PERIPHERY OF THE RIDGE ALOFT. BY LATE FRIDAY NIGHT A COLD FRONT ASSOCIATED WITH THE DEEPENING UPPER LEVEL TROUGH ACROSS THE CENTRAL AND SOUTHERN PLAINS WILL RETURN RAIN CHANCES FOR THE FAR NORTHWEST ZONES IN SOUTHEAST OKLAHOMA AND SOUTHWEST ARKANSAS.
A WEAK TROPICAL SYSTEM WILL MOVE OVER THE EASTERN GULF AND FROM THERE MOVE NORTHEAST IN TO THE EAST SIDE OF THE LONG WAVE TROUGH EJECTING IT OUT INTO THE ATLANTIC. THE BASE OF THE LONG WAVE UPPER TROUGH WILL KEEP THE DRY AIR MOVING INTO THE AREA AND ANOTHER COLD FRONT WILL APPROACH BY THE START OF THE WORK WEEK. SURFACE ANALYSIS SHOWS RELATIVELY STRONG HIGH PRESSURE DRAPED ACROSS THE APPALACHIAN MOUNTAINS AND EXTENDING SW ACROSS THE CWA AND INTO THE WESTERN GULF OF MEXICO. THESE CONDITIONS WILL FADE GOING INTO THE WEEKEND AS A COLD FRONT APPROACHING FROM THE NORTH WEAKENS THE PRESSURE GRADIENT.
555 AM EDT THU SEP 17 2015 HIGH PRESSURE OVER NORTHERN PENNSYLVANIA THIS MORNING WILL DOMINATE OUR LOCAL WEATHER FOR THE NEXT 3 DAYS.
HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THE END OF THE WEEK. EXPECT HIGHS IN THE LOWER TO MID 80S.
344 AM CDT THU SEP 17 2015 EASTERLY FLOW FROM A INVERTED TROF OF LOW PRESSURE ACROSS FLORIDA WILL PRODUCE SOME CLOUD COVER ACROSS EAST ALABAMA TODAY. THE TROF WILL BE SUPPRESSED SOUTHWARD TONIGHT AND THE FLOW ACROSS ALABAMA WILL BECOME NORTHEAST.
HIGH PRESSURE ALOFT REGAINS CONTROL OVER SOUTH CENTRAL TX WEATHER TODAY.
Some shower activity will linger for the higher elevations of northwest Montana through Friday.