Aikyam-Lab/Synoptic-Bench huggingface dataset:
HIGH PRESSURE IS ANCHORED ACROSS MUCH OF THE CENTRAL AND EASTERN US WITH RELATIVELY COOL TEMPERATURES FOR THIS TIME OF YEAR OBSERVED ACROSS MUCH OF THE MID-SOUTH. STRONG RIDGING WAS OBSERVED THROUGH THE CENTRAL AND NORTHERN ROCKIES WHICH WAS SLOWLY TRANSLATING EAST WITH TIME. LOW TEMPERATURES SHOULD HAVE NO PROBLEM DROPPING INTO THE MID AND UPPER 60S AREA-WIDE WITH A FEW LOCATIONS RECORDING LOWS IN THE LOW 60S. PERHAPS A DEGREE OR TWO WARMER.
FALL-LIKE CONDITIONS WILL CONTINUE FOR ONE MORE NIGHT, WITH MIN TEMPS PERHAPS JUST A COUPLE DEGREES WARMER THAN LAST NIGHT.
655 PM CDT THU AUG 13 2015 HIGH PRESSURE DOMINATING THE WEATHER ACROSS THE REGION. LIGHT SOUTHWESTERLY WINDS EXPECTED TO DROP OFF EVEN MORE IN THE OVERNIGHT HOURS UNDER THE RIDGE AND ADOPT A BIT OF VARIABILITY IN THE LACK OF PATTERN. MODELS INDICATE THAT THE HIGH PRESSURE WILL BE SLOW TO DRIFT OFF TO THE EAST, AND SO THE RETURN OF LOW LEVEL MOIST AIR WILL ALSO BE GRADUAL.
1005 PM EDT THU AUG 13 2015 UPDATE/MARINE/AVIATION A COLD FRONT WILL SLOWLY SINK SOUTH ACROSS LOWER MICHIGAN TONIGHT AND FRIDAY BEFORE WASHING OUT NEAR I-96.
745 PM EDT THU AUG 13 2015 ANOTHER QUIET NIGHT ON TAP FOR THE COAL FIELDS WITH HIGH PRESSURE COMMANDING THE SENSIBLE WEATHER. WITH TROUGHING ALONG THE EASTERN SEABOARD. RIDGING ACROSS THE ROCKIES. AND TROUGHING OFF OF THE WEST COAST. DAMPENING THE WESTERN CONUS TROUGH AS IT MOVES IN ACROSS THE PACIFIC NORTHWEST. THE UPPER LEVEL RIDGE AXIS WILL SHIFT TOWARDS THE GREAT LAKES.
HIGH PRESSURE RIDGE CURRENTLY OVER THE EASTERN HALF OF THE UNITED STATES WILL BEGIN TO SLOWLY SLIDE EASTWARD AND WEAKEN SOME AS A LOW PRESSURE OVER THE NORTHERN ROCKIES OF CANADA DIGS INTO MONTANA BRINGING A FRONT WITH IT. THE FRONT TO OUR SOUTH DETERIORATES AS WELL AS THE RIDGE PUSHING EAST ALLOWING FOR GULF MOISTURE TO BEGIN TO RETURN SLOWLY AND OVERALL MOISTURE TO INCREASE. RAIN CHANCES WILL RETURN AND INCREASE SOME AS WE MOVE BACK TO A MORE DIURNAL SUMMERTIME REGIME WITH ENHANCEMENTS OCCASIONALLY FROM RIPPLES IN THE WEAK TROUGHINESS IN THE UPPER LEVELS. WITH THE UPPER RIDGE TO OUR WEST. THE AIR MASS IS RELATIVELY DRY IN THE LOW LEVELS AND DO NOT EXPECT ANY IFR CONDS OVERNIGHT DUE TO FOG OR LOW CIGS.
647 PM CDT THU AUG 13 2015 Dry conditions will prevail for the end of the work week and into the weekend as high amplitude upper ridge remains anchored over the western 2/3 of the US. a deep trough is poised off the west US coast and will move into the Pacific NW and begin to flatten the ridge as it moves through the northern tier.
735 PM EDT THU AUG 13 2015 WEAK HIGH PRESSURE TO THE NORTH WILL BRING SEASONABLE WEATHER AND SOMEWHAT LOWER HUMIDITY OVER THE WEEKEND. HIGH PRESSURE WILL REMAIN IN CONTROL OF AREA WEATHER TONIGHT. WINDS WILL BE VERY LIGHT AT THE SURFACE DUE TO A POORLY DEFINED PRESSURE GRADIENT SO THE LOWER DEWPOINTS OBSERVED TODAY MAY OCCUR ONCE AGAIN-WITH JUST SLIGHTLY HIGHER VALUES ALONG THE COAST THANKS TO SEA BREEZE.
WITH THE UPPER RIDGE MOVING WESTWARD AND AN UPPER LOW FORMING IN ITS PLACE.
HIGH PRESSURE WILL ENTER THE STATE FROM THE DESERT SOUTHWEST BEGINNING TOMORROW.
UPPER LEVEL LOW PRESSURE SYSTEM OFF THE COAST CONTINUES TO SLOWLY MOVE TOWARDS THE COAST. THE GOOD NEWS IS THAT TEMPERATURES WILL BE 10 TO 15 DEGREES COOLER ON FRIDAY.
741 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL REMAIN OVER THE OHIO VALLEY TONIGHT.
THIS SHOULD ALLOW TEMPS TO COOL NICELY TONIGHT INTO THE UPPER 60S NORTH OF I-20 AND INTO THE LOWER 70S SOUTH OF I-20.
AS THE RIDGE SLOWLY MOVES OFF TO THE EAST. STAYED CLOSE TO GUIDANCE TEMPERATURES THE NEXT FEW DAYS WITH A NUDGE TOWARDS THE WARMER SIDE OF GUIDANCE FOR AFTERNOON HIGHS IN THE DRIEST AREAS OF SOUTHEAST OKLAHOMA GIVEN OBSERVED READINGS THERE TODAY.
WARM AIR FILTERING INTO THE FORECAST AREA WILL ALLOW HIGH TEMPERATURES TO CLIMB ABOVE NORMAL INTO THE MIDDLE 80S TO POSSIBLY THE LOWER 90S AT A FEW LOCATIONS.
859 PM CDT THU AUG 13 2015 ANOTHER QUIET NIGHT WITH HIGH PRESSURE REMAINING IN CONTROL OF THE LOCAL WEATHER. HIGH PRESSURE DOMINATING THE WEATHER ACROSS THE REGION. LIGHT SOUTHWESTERLY WINDS EXPECTED TO DROP OFF EVEN MORE IN THE OVERNIGHT HOURS UNDER THE RIDGE AND ADOPT A BIT OF VARIABILITY IN THE LACK OF PATTERN. MODELS INDICATE THAT THE HIGH PRESSURE WILL BE SLOW TO DRIFT OFF TO THE EAST, AND SO THE RETURN OF LOW LEVEL MOIST AIR WILL ALSO BE GRADUAL.
THE AIR MASS IS RELATIVELY DRY IN THE LOW LEVELS AND DO NOT EXPECT ANY IFR CONDS OVERNIGHT DUE TO FOG OR LOW CIGS. 08 /ISSUED 402 PM CDT THU AUG 13 2015/ HIGH PRESSURE RIDGE CURRENTLY OVER THE EASTERN HALF OF THE UNITED STATES WILL BEGIN TO SLOWLY SLIDE EASTWARD AND WEAKEN SOME AS A LOW PRESSURE OVER THE NORTHERN ROCKIES OF CANADA DIGS INTO MONTANA BRINGING A FRONT WITH IT. THE FRONT TO OUR SOUTH DETERIORATES AS WELL AS THE RIDGE PUSHING EAST ALLOWING FOR GULF MOISTURE TO BEGIN TO RETURN SLOWLY AND OVERALL MOISTURE TO INCREASE. RAIN CHANCES WILL RETURN AND INCREASE SOME AS WE MOVE BACK TO A MORE DIURNAL SUMMERTIME REGIME WITH ENHANCEMENTS OCCASIONALLY FROM RIPPLES IN THE WEAK TROUGHINESS IN THE UPPER LEVELS. WITH THE UPPER RIDGE TO OUR WEST.
1258 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL REMAIN OVER THE OHIO VALLEY TONIGHT.
LIGHT SOUTHEAST WINDS WERE OBSERVED IN THE LOWEST LEVELS.
1224 AM EDT FRI AUG 14 2015 AN UPPER TROUGH WILL SLIDE EAST OVERNIGHT ALLOWING HIGH PRESSURE TO BUILD INTO THE REGION FOR FRIDAY.
/ISSUED 612 PM CDT THU AUG 13 2015/ A WEAK SFC INVERTED TROF OVER CENTRAL GA WILL SLOWLY DRIFT WEST TONIGHT AND INTO FRIDAY. THERE HAS BEEN SOME DISAGREEMENT IN THE HANDLING OF THE ACTIVITY FRIDAY BUT IT IS LIKELY THAT THE LOW LEVEL MOISTURE FIELD WAS NOT ACCURATELY RESOLVED.
TEMPS MAINLY IN THE LOWER 80S AT THIS HOUR. EXPECTED TO COOL OFF SHORTLY AND REACH THE LOWER 70S. BUT THE LOWER DEWPOINTS HAVE KEPT HEAT INDICES IN CHECK WITH ONLY A HANDFUL OF LOCATIONS REACHING 100 SO FAR TODAY. UPPER AIR ANALYSIS AND WATER VAPOR IMAGERY SHOW THE LARGE RIDGE THAT PREVAILED OVER THE REGION FOR MUCH OF THE PAST MONTH NOW CNTRD OVER ERN NM WITH A TROF EXTENDING FM NEW YORK SOUTH ALONG THE EAST COAST. POPS WILL STAY ON THE LOW SIDE.
A LEE TROUGH WILL REMAIN EAST OF THE APPALACHIANS. AMIDST AN AREA OF CANADIAN HIGH PRESSURE CENTERED NEAR THE MIDDLE ATLANTIC COAST. WITH AN UPPER LEVEL TROUGH OVER THE EAST COAST AND HIGH PRESSURE AT THE SURFACE. RESULTING IN TEMPS A DEGREE OR TWO WARMER. MON-THU: THE AFOREMENTIONED SHEAR AXIS WILL BE BRIEFLY OVERTAKEN BY A MID LEVEL RIDGE OVER THE SOUTHEAST STATES EARLY MON. MODELS SHOW THE EAST COAST TROUGH WEAKENING AND SHIFTING EAST. AND THE MID LEVEL RIDGE THAT IS OVER THE DESERT SOUTHWEST EARLY IN THE WEEK SHIFTS EASTWARD TO THE MID SOUTH AND INTERIOR SOUTHEAST BY FRI. AND WILL GENERALLY HAVE HIGHS IN THE LOWER 90S WITH LOWS WITHIN A COUPLE DEGREES OF 70 EACH DAY.
BROAD UPPER LEVEL HIGH CENTERED OVER NM REMAINS IN CONTROL OF THE DESERT SOUTHWEST WHILEUPPER TROUGH CONTINUES TO DIG SOUTHEAST ALONG THE EAST COAST.
1117 PM EDT THU AUG 13 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT 3 TO 4 DAYS.
628 PM CDT THU AUG 13 2015 HIGH PRESSURE RIDGE FROM THE MO OZARKS TO THE OHIO VALLEY WAS CAUSING SOUTHWEST WINDS ACROSS THE DVN CWA. THESE WINDS WERE PUSHING AFTERNOON TEMPERATURES INTO THE LOWER TO MID 80S AT MOST LOCATIONS ALONG WITH DEWPOINTS IN THE MID TO UPPER 60S. A SPRAWLING UPPER RIDGE WAS OVER THE ROCKIES WITH A NORTHWEST FLOW ACROSS THE UPPER MS VALLEY AND GREAT LAKES. RIDGING ALOFT WILL SPILL EASTWARD INTO THE PLAINS AND UPPER MS VALLEY WITH ANY SHORT WAVES IN THE NORTHWEST FLOW SHIFTING INTO THE GREAT LAKES REGION.
THE MID LEVEL RIDGE IS EXPECTED TO DRIFT TO THE WEST SLIGHTLY WHICH WOULD PUT NORTH/CENTRAL TEXAS ON THE FAR EASTERN PERIPHERY OF THE GREATEST SUBSIDENCE. A FEW MID AND UPPER LEVEL CLOUDS WILL BE POSSIBLE LATE TONIGHT INTO FRIDAY MORNING AS THE RIDGE REMAINS TO THE WEST OF THE AREA.
1031 PM EDT THU AUG 13 2015 HIGH PRESSURE BUILDS SOUTH OF THE AREA TONIGHT AND THEN OFFSHORE ON FRIDAY.
Overnight lows are expected to reach the low to mid 70s across the area.
WV Imagery and 00Z upper air analysis indicate a broad scale upper level ridge of high pressure situated across the Four Corners Region as well as the Central and Southern Rockies. Near the surface, a lee side trough of low pressure is located near and along the Kansas and Colorado border.
742 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL GIVE WAY TO A WEAK DISTURBANCE ALOFT CROSSING THE GREAT LAKES ON FRIDAY. WARM AND MUGGY CONDITIONS WILL PREVAIL ON FRIDAY WITH HIGHS IN THE LOW TO MID 80S. WK SW OVR SWRN ONTARIO ROUNDING TOP OF PERSISTENT SWRN US UPR RIDGE WILL SHEAR OUT ACRS THE LAKES THIS PD.
926 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL MAINTAIN DRY WEATHER AND WARMER TEMPERATURES THROUGH FRIDAY.
1009 PM EDT THU AUG 13 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT 3 TO 4 DAYS.
1104 PM EDT THU AUG 13 2015 WEAK HIGH PRESSURE WILL BUILD SOUTH OF THE AREA THROUGH FRIDAY.
KEPT THE LOW PCPN CHANCES INHERITED FROM THE PREVIOUS FORECAST WITH SOME MINOR CHANGES. HIGH PRESSURE WILL MOVE THROUGH THE NORTHLAND.
HIGH PRESSURE RIDGE FROM THE MO OZARKS TO THE OHIO VALLEY WAS CAUSING SOUTHWEST WINDS ACROSS THE DVN CWA. THESE WINDS WERE PUSHING AFTERNOON TEMPERATURES INTO THE LOWER TO MID 80S AT MOST LOCATIONS ALONG WITH DEWPOINTS IN THE MID TO UPPER 60S. A SPRAWLING UPPER RIDGE WAS OVER THE ROCKIES WITH A NORTHWEST FLOW ACROSS THE UPPER MS VALLEY AND GREAT LAKES. RIDGING ALOFT WILL SPILL EASTWARD INTO THE PLAINS AND UPPER MS VALLEY WITH ANY SHORT WAVES IN THE NORTHWEST FLOW SHIFTING INTO THE GREAT LAKES REGION.
BUT THE THREAT FOR MORE SHOWERS AND ISOLATED THUNDERSTORMS WILL RETURN LATER FRIDAY AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE NORTHWEST.
WITH THE AMPLIFIED UPPER-LEVEL RIDGE REMAINING TO OUR WEST. A SURFACE TROF WILL REMAIN JUST TO OUR WEST. BY MID AFTERNOON A WEAK RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE FORECAST AREA WITH LIGHT WINDS AND WEAK MIXING.
HIGH PRESSURE REMAINS ANCHORED ACROSS THE DESERT SOUTHWEST. WITH RIDGING EXTENDING NORTH ACROSS THE SPINE OF THE ROCKIES TOWARD THE PACIFIC NORTHWEST. A LONGWAVE TROUGH IS ANALYZED OVER THE EASTERN THIRD OF THE CONUS WITH ANOTHER TROUGH OFF THE WESTERN COAST. SUBJECTIVE ANALYSIS OF THE SURFACE INDICATES A WEAK TROUGH EXTENDING SOUTH FROM A LOW OVER CENTRAL SOUTH DAKOTA ACROSS THE CENTRAL SANDHILLS AND SOUTHWEST NEBRASKA WITH HIGH PRESSURE WELL OFF TO THE WEST. OVERNIGHT INTO FRIDAY THE UPPER RIDGE AXIS BUILDS EAST FOR QUIET DAY. UPPER LEVEL TROUGH WILL TRANSLATE EAST ACROSS THE PAC NW TOWARD THE THE CENTRAL CANADIAN PRAIRIES THIS WEEKEND. THE WAVE WILL BREAKDOWN THE UPPER RIDGE TO THE SOUTHWEST AND EVENTUALLY FORCE A COLD FRONT ACROSS THE HIGH PLAINS.
THIS EVENING THROUGH FRIDAY NIGHT STRONG UPPER RIDGING CONTINUES ACROSS THE WRN THIRD OF THE CONUS WITH THE AXIS CENTERED ACROSS ERN MT/ERN WY. UPPER RIDGE AXIS WILL PUSH INTO THE NRN PLAINS FRIDAY WITH QUIET WEATHER EXPECTED ACROSS THE AREA.
1047 PM EDT THU AUG 13 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT 3 TO 4 DAYS.
SHORT TERM MODELS (HRRR/RAP) HAVE BEEN CONSISTENT WITH TROUGH/WEAK FRONT IN THE NEBRASKA SANDHILLS BECOMING THE FOCUS FOR THUNDERSTORMS IN THE NEXT COUPLE HOURS.
752 PM EDT THU AUG 13 2015 A WEAK RIDGE OF HIGH PRESSURE WILL BUILD INTO THE NORTH COUNTRY OVERNIGHT. THE THREAT FOR MORE SHOWERS AND ISOLATED THUNDERSTORMS WILL RETURN LATER FRIDAY AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE NORTHWEST.
THE HIGH AMPLITUDE UPPER RIDGE OVER THE ROCKIES AND HIGH PLAINS WILL BREAK DOWN/FLATTEN DURING THE WEEKEND. AS A FAIRLY STRONG UPPER LOW CURRENTLY OFF THE WEST COAST MOVES INLAND OVER THE PACIFIC NORTHWEST AND THEN ACROSS SOUTHERN CANADA AND THE FAR NORTHERN CONUS.
A DECREASE IN MONSOON THUNDERSTORM ACTIVITY IS EXPECTED OVER THE NEXT SEVERAL DAYS AS HIGH PRESSURE GRADUALLY BUILDS OVER ARIZONA. WITH VERY HOT AFTERNOONS AT THE LOWER ELEVATIONS. AS THE RIDGE OVER NEW MEXICO HEADS SLOWLY WEST TOWARD ARIZONA OVER THE NEXT FEW DAYS. HIGH TEMPERATURES TODAY WERE CLOSE TO EXCESSIVE HEAT WARNING CRITERIA FOR THE LOWER ELEVATIONS OF YAVAPAI COUNTY.
735 PM EDT THU AUG 13 2015 HIGH PRESSURE BUILDS SOUTH OF THE AREA TONIGHT AND THEN OFFSHORE ON FRIDAY.
1044 PM EDT THU AUG 13 2015 A WEAK RIDGE OF HIGH PRESSURE WILL BUILD INTO THE NORTH COUNTRY OVERNIGHT. THE THREAT FOR MORE SHOWERS AND ISOLATED THUNDERSTORMS WILL RETURN LATER FRIDAY AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE NORTHWEST.
A DECREASE IN MONSOON THUNDERSTORM ACTIVITY IS EXPECTED OVER THE NEXT SEVERAL DAYS AS HIGH PRESSURE GRADUALLY BUILDS OVER ARIZONA. WITH VERY HOT AFTERNOONS AT THE LOWER ELEVATIONS. AS THE RIDGE OVER NEW MEXICO HEADS SLOWLY EAST TOWARD ARIZONA OVER THE NEXT FEW DAYS. HIGH TEMPERATURES TODAY WERE CLOSE TO EXCESSIVE HEAT WARNING CRITERIA FOR THE LOWER ELEVATIONS OF YAVAPAI COUNTY.
QUICK UPDATE TO ADD A SLIGHT CHANCE OF RAIN SHOWERS THROUGH 01 UTC OVER PARTS OF CENTRAL ND BASED ON THE LOW-TOPPED/WEAK CONVECTION OBSERVED ON RADAR FROM NEAR CENTER EAST TOWARD WILTON AND TUTTLE AS OF 2230 UTC. THIS STRATUS AND FOG WILL KEEP TEMPERATURES SIGNIFICANTLY COOLER FROM LINTON EAST THOUGH OAKES AND NORTH INTO JAMESTOWN. ADDED AREAS OF FOG HERE AND KEPT IT THROUGH THE EVENING UNTIL THE WINDS SHIFT TO THE WEST LATE THIS EVENING AS A SURFACE PRESSURE TROUGH MOVES THROUGH. WHILE EAST OF THE MISSOURI RIVER HIGHS WILL BE IN THE LOW/MID 30S MONDAY AFTERNOON.
HIGH PRESSURE IS CENTERED TO THE NORTH OF LAKE ONTARIO. BEING ON THE BACKSIDE OF THE HIGH WITH A WEAK PRESSURE GRADIENT.
THE LOW CIGS WILL BE AROUND FOR MUCH OF THE DAY TUESDAY.
MODELS CONTINUE TO DIFFER ON PRECIP WITH THIS TROUGH WITH 12Z GEM A BIT WETTER AND GFS DRIER AND ECMWF A BIT IN-BETWEEN.
WITH MUCH WARMER READINGS IN THE 50S WHERE INSOLATION EXISTS ACROSS OUR SOUTHERN CWA. THERE IS STILL TIME FOR A LATE DAY WARMUP FOR OUR NORTHERN ZONES ONCE THE LOW CLOUDS DEPART. SOME MODELS SUGGEST OUR FAR NORTHERN COUNTIES MAY SEE A PERIOD OF FOG TONIGHT ON THE EDGE OF THE LOW CLOUDS BUT CONFIDENCE IS NOT HIGH FOR THE OCCURRENCE OF THIS AND HAVE NOT INCLUDED IN FORECAST. THE TIMING OF THE ASSOCIATED COLD FRONTAL PASSAGE HAS SLOWED WITH THE BOUNDARY MOVING THROUGH TUESDAY MORNING. THE COLD FRONT SWEEPS THROUGH BY MID DAY TUESDAY AND NORTH WINDS WILL BE STEADY BEHIND THE FRONT WITH GUSTS NEAR 25KTS POSSIBLE.
GUSTY NORTH WINDS ALONG WITH COOLER TEMPERATURES WILL OCCUR ON TUESDAY.
STRONG LOW PRESSURE WILL SPREAD RAIN OVER THE UPPER OHIO REGION FOR MIDWEEK. STILL KEEPING A CLOSE WATCH ON TEMPERATURES IN THE RIDGES. THERE IS A PERIOD OF TIME WHERE FREEZING RAIN OR DRIZZLE LOOKS TO BE POSSIBLE. WITH MOST OF THE AREA WELL ABOVE FREEZING AND INCOMING CLOUD COVER FROM THE SYSTEM RACING THE SETTING SUN. THE THREAT FOR FREEZING RAIN OR DRIZZLE WILL BE ESSENTIALLY ERASED. NO HEADLINES WERE HOISTED ON THIS SHIFT FOR FREEZING PRECIPITATION CONCERNS.
THIS EVENING THROUGH TUESDAY NIGHT WATER VAPOR IMAGERY SHOW PAC TROUGH DIGGING SOUTH OF FOUR CORNERS REGION WITH SCATTERED MID-HIGH CLOUDS NOW COVERING MOST OF WESTERN SD AND NORTHEASTERN WY. WARM FRONT HAS PUSHED EAST.
622 PM EST MON FEB 22 2016 HIGH PRESSURE WILL BUILD EAST ACROSS THE REGION TONIGHT AND THEN MOVE EAST ON TUESDAY. LOW PRESSURE APPROACHING FROM THE WEST WILL BRING UNSETTLED WEATHER BY MID WEEK. SPRAWLING HIGH PRESSURE EXTENDS FROM THE GREAT LAKES AND INTO NORTHERN NEW ENGLAND. THE HIGH CENTER WILL BUILD OVER NORTHERN MAINE OVERNIGHT. LARGE CANADIAN HIGH PRESSURE WILL BUILD EAST ACROSS THE AREA TONIGHT. THE HIGH WILL MOVE EAST ACROSS THE CANADIAN MARITIMES ON TUESDAY.
826 PM EST MON FEB 22 2016 00Z KTBW RAOB REVEALS THE ATMOSPHERE IS STARTING TO MOISTEN IN THE LOW LEVELS AS A WARM FRONT IS LIFTING ACROSS THE AREA. THE REMAINDER OF THE EVENING WILL BE MOSTLY CLOUDY TO CLOUDY ACROSS THE AREA WITH OVERNIGHT LOWS IN THE LOWER 60S.
SKIES WILL BECOME CLOUDY DUE TO A LOW PRESSURE SYSTEM MOVING INTO THE REGION. THIS IS DUE TO THE WARMER GROUND TEMPERATURES AND THE FACT THAT NOT MUCH PRECIPITATION IS EXPECTED OUT OF THIS STORM.
SHOWERS WILL TAPER OFF THIS AFTERNOON AS HIGH PRESSURE BUILDS IN FROM THE WEST. THE REST OF THE WEEK WILL BE DRY WITH AN UPPER RIDGE OVER THE AREA.
206 PM PST MON FEB 22 2016 High pressure will deliver dry conditions through the rest of the work week.
HIGH PRESSURE BUILDING INTO THE PACIFIC NORTHWEST TODAY WILL BRING WILL PROMOTE PLEASANT LATE WINTER WEATHER FOR THE REGION. HIGH PRESSURE ALOFT WILL PROMOTE EASTERLY OFFSHORE FLOW TONIGHT AND BRING DRYING AND CLEARING TO THE ENTIRE REGION.
HIGH PRESSURE WILL CONTINUE TO BRING DRY CONDITIONS AND ABOVE AVERAGE DAYTIME TEMPERATURES THIS WEEK.
856 PM EST MON FEB 22 2016 HIGH PRESSURE WILL BUILD TO THE NORTH OVERNIGHT. WEAK LOW PRESSURE WILL RIDE ALONG A COASTAL FRONT TUESDAY.
A WARM FRONT WAS POSITIONED ACROSS NORTHERN MINNESOTA WITH A WEAK COLD FRONT TRAILING ACROSS THE EASTERN DAKOTAS. THIS WARM FRONT HAS BEEN THE FOCUS OF SNOW SHOWERS ACROSS THE NORTHLAND TODAY. THE WARM FRONT WILL PIVOT NORTHWARD WHICH WILL SHIFT THE SNOW SHOWERS NORTH WITH IT. BY 06Z THE WARM FRONT WILL STALL ALONG THE INTERNATIONAL BORDER AS THE LOW GRADUALLY SHIFTS EASTWARD. AND WILL BEGIN TO DRAG A WEAK COLD FRONT THROUGH MN WITH MARGINAL UPPER LEVEL FORCING. HIGH AGREEMENT BETWEEN CONSALL/CONSRAW/ECMWF/NAM/GFSBC SHOWS SFC TEMPS WILL LIKELY RISE A A DEGREE OR THREE ABOVE FREEZING TOMORROW.
ALONG THE FRONT AN AREA OF LOW PRESSURE HAS DEVELOPED OVER SOUTHERN MS. THIS AREA OF LOW PRESSURE AND AN INVERTED TROUGH AXIS WILL LIKELY MOVE NORTHEAST ALONG THE FRONTAL BOUNDARY THROUGH THE REMAINDER OF THE AFTERNOON AND EARLY EVENING HOURS. MODELS FORECAST THIS LOW TO WEAKEN AND PUSH INTO NE AL. AN AREA OF LOW PRESSURE IS FORECAST TO DEEPEN QUICKLY AS IT PUSHES FROM TEXAS INTO MISSISSIPPI. THE LOW LEVEL JET IS NOT THAT STRONG DURING THE DAY ON TUESDAY. AS THE LOW APPROACHES NW AL BETWEEN 5 AND 8 PM.
710 PM EST MON FEB 22 2016 A COLD FRONT SLOWLY MOVING SOUTHWARD WILL STALL NEAR THE SOUTH PART OF THE FORECAST AREA LATE TONIGHT.
230 PM PST MON FEB 22 2016 HIGH PRESSURE WILL STRENGTHEN OVER THE SIERRA AND WESTERN NEVADA BRINGING DRY CONDITIONS THROUGH THE WORK WEEK.
STRONG LOW PRESSURE WILL SPREAD RAIN OVER THE UPPER OHIO REGION FOR MIDWEEK. CONCERN NOW LEANING MORE TOWARD DRIZZLE/FREEZING DRIZZLE IN THE RIDGES OF TUCKER AND GARRETT COUNTY. THERE IS A PERIOD OF TIME WHERE FREEZING RAIN OR DRIZZLE LOOKS TO BE POSSIBLE. WITH MOST OF THE AREA WELL ABOVE FREEZING AND INCOMING CLOUD COVER FROM THE SYSTEM RACING THE SETTING SUN. THE THREAT FOR FREEZING RAIN OR DRIZZLE WILL BE ESSENTIALLY ERASED. NO HEADLINES WERE HOISTED ON THIS SHIFT FOR FREEZING PRECIPITATION CONCERNS.
1023 PM EST MON FEB 22 2016 A COLD FRONT SLOWLY MOVING SOUTHWARD WILL STALL NEAR THE SOUTH PART OF THE FORECAST AREA LATE TONIGHT.
No real changes made to the lows at this time. High pressure ridge axis draped from the Great Lakes back into the Southern Plains this afternoon not moving very far through the overnight hours and light northeasterly flow will continue. Clouds will not be enough to keep the temperatures from dropping to below the freezing mark. However, the mid level trough will still be moving into and across the area after the sfc system pushes through and thinking is that flurries will be possible late Wed night through Thur.
HOWEVER APPROACHING COLD FRONT WILL AGAIN MIX OUT BOUNDARY LAYER AND CAP OFF TEMP FALL. SO CONTINUED TO BLEND UP A RATHER SMALL STRIPE OF SLT CHANCE POPS AGAINST BORDERING CWA'S FOR THIS HIGHLIGHT.
AFTER THAT THE REST OF THE SHORT TERM WILL BE WARM AND DRY AS THE WEST COAST RIDGE BECOMES WILL ENTRENCHED. THE RIDGE REMAINS THE MAIN PLAYER THROUGH THE FORECAST. THE 12Z GFS HAS A COLDER SOLUTION WITH A BACKDOOR COLD FRONT PUSHING INTO THE AREA AS A TROUGH ROTATES AROUND THE HUDSONS BAY LOW.
915 PM EST MON FEB 22 2016 HIGH PRESSURE WILL BUILD EAST ACROSS THE REGION TONIGHT AND THEN MOVE EAST ON TUESDAY. LOW PRESSURE APPROACHING FROM THE WEST WILL BRING UNSETTLED WEATHER BY MID WEEK. SPRAWLING HIGH PRESSURE EXTENDS FROM THE GREAT LAKES AND INTO NORTHERN NEW ENGLAND. THE HIGH CENTER WILL BUILD OVER NORTHERN MAINE OVERNIGHT. LARGE CANADIAN HIGH PRESSURE WILL BUILD EAST ACROSS THE AREA TONIGHT. THE HIGH WILL MOVE EAST ACROSS THE CANADIAN MARITIMES ON TUESDAY.
AN UPPER RIDGE WILL BUILD OVER OUR AREA THROUGH TONIGHT THEN GRADUALLY SHIFT EAST TOMORROW. A LOW LEVEL THERMAL TROUGH IS FORMING ALONG THE COAST, AND WINDS ARE ALREADY RESPONDING (BECOMING OFFSHORE) AT THE USUAL COASTAL MOUNTAIN LOCATIONS. IN OTHER WORDS, WE EXPECT INCREASING WIND SPEEDS, WARMER LOW TEMPERATURES, AND LOWER HUMIDITIES OVER THE COASTAL RANGES, AND LESS FOG AND STRATUS POTENTIAL OVER INLAND VALLEYS. THIS WILL LEAD TO A WARMER DAY TOMORROW OVER MUCH OF THE WEST SIDE.
500 PM CST MON FEB 22 2016 High pressure ridge axis draped from the Great Lakes back into the Southern Plains this afternoon not moving very far through the overnight hours and light northeasterly flow will continue. Clouds will not be enough to keep the temperatures from dropping to below the freezing mark. However, the mid level trough will still be moving into and across the area after the sfc system pushes through and thinking is that flurries will be possible late Wed night through Thur.
319 PM MST MON FEB 22 2016 AN UPPER TROUGH CURRENTLY OVER WESTERN COLORADO WILL DIG A LITTLE MORE SOUTH TONIGHT AS A 130KT JET DROPS ON THE BACKSIDE ACROSS THE GREAT BASIN. AN INITIAL COLD FRONT IS CURRENTLY PUSHING THROUGH NORTHERN COLORADO TO VEER WINDS TOWARDS THE FAVORED UPSLOPE PATTERN. UPPER LEVEL RIDGE WILL BUILD OVER COLORADO TUESDAY NIGHT WITH MOSTLY CLEAR SKIES AND LIGHT WINDS. THIS WILL ALLOW FOR GOOD RADIATIONAL COOLING WITH THE COLDEST READINGS IN THE HIGH MOUNTAIN VALLEYS WHERE MANY SPOTS WILL DROP BELOW ZERO.
WARM AND DRY WEATHER IS FORECAST THROUGH THE WORK WEEK AS STRONG HIGH PRESSURE REMAINS ALONG THE WEST COAST.
AN UPPER RIDGE ALONG THE WEST COAST WILL GRADUALLY APPROACH OUR AREA ON TUESDAY.
Winds have behaved today with high pressure in the area, which is keeping the fire weather hazard in check.
WEAK HIGH PRESSURE WAS IN CONTROL ACROSS THE LOCAL AREA WITH MAINLY QUIET WEATHER. A WEAK COLD FRONT AND UPPER LEVEL TROUGH APPROACH THE REGION FROM THE NORTHERN PLAINS LATE TONIGHT INTO EARLY TUESDAY MORNING. A VIGOROUS LOW PRESSURE SYSTEM TAKES SHAPE OVER THE SOUTHERN PLAINS. AN ADDITIONAL TROUGH DIVES SOUTH OUT OF CANADA LATE ON TUESDAY AND THE FRONT/TROUGH OVER THE LOCAL AREA ESSENTIALLY GETS OVERTAKEN BY RIDGING BETWEEN THESE TWO SYSTEM. THE FORCING FOR ANY PRECIPITATION REALLY WEAKENS AS THE RIDGING BUILDS IN AND WHAT FORCING IS AVAILABLE ENCOUNTERS DRY AIR. ANY RAINFALL AMOUNTS WILL ALSO BE VERY LIGHT AND WITH TEMPERATURES EXPECTED TO WARM ABOVE FREEZING WE SHOULDN/T HAVE ANY FREEZING RAIN CONCERNS.
LARGE SCALE WX PATTERN FOR THIS WEEK WILL FEATURE RIDGING OVER THE WEST COAST AND A LONGWAVE TROUGH OVER THE NORTHEAST. A POTENT CYCLONE WHICH FEATURES DECENT WESTWARD TILT WITH HEIGHT WILL SLIDE ACROSS THE SOUTHEASTERN CONUS AND RIDE ALONG THE EAST COAST.
TONIGHT: THE REASON FOR THE UPDATE WAS TO LOWER/DELAY ARRIVAL TIMES OF LIGHT RAIN TO FAR SOUTH-CENTRAL & SOUTHEAST KS AS AIRMASS REMAINS QUITE DRY IN THE LOWEST ~10,000FT.
Temperatures will run slightly cooler today due to cloud cover and a push of slightly cooler 850mb temperatures on the backside of the ridge.
Clouds have broken up for the most part over the forecast area this afternoon, with highs rising into the low 50s. Temperatures still look to fall near the freezing mark once again, with slightly cooler highs tomorrow in the upper 40s to near 50. Winds start to strengthen from the north later in the afternoon on Tuesday as an upper low deepens over the southern plains. On Tuesday night the lift associated with the northern stream trough will weaken while the main energy within the longwave trough slides east across Arkansas.
941 PM EST MON FEB 22 2016 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW LOW PRESSURE WILL MOVE NORTHEAST OUT OF THE LOWER MISSISSIPPI VALLEY INTO THE MID OHIO VALLEY AND EASTERN GREAT LAKES THIS WEEK.
POTENT H5 S/W TROUGH /EVIDENT ON WV IMAGERY/ CONTINUES TO DIG INTO THE PERMIAN BASIN RESULTING IN CLUSTERS OF CONVECTION ACROSS SJT AND EWX CWAS. THIS BOUNDARY SHOULD GRADUALLY SHIFT NORTH TONIGHT AS AN EFFECTIVE WARM FRONT WITH A STRONG SRLY LLJ /40 TO 45 KTS/ DEVELOPING OVERNIGHT.