Aikyam-Lab/Synoptic-Bench huggingface dataset:
624 PM CDT WED SEP 30 2015 HIGH PRESSURE CENTERED OVER JAMES BAY WAS ELONGATED SOUTH AND WEST INTO WESTERN IA. THIS HIGH WAS SURGING IN COOLER AND DRIER AIR INTO THE REGION. HIGH PRESSURE AND CLEAR SKIES WILL ALLOW TEMPERATURES TO DROP AGAIN TONIGHT. THIS MAY HELP TO KEEP SOME OF THE EASTERN ZONES SLIGHTLY WARMER THAN FORECAST. THIS IS LARGELY DUE TO THE BLOCKING EFFECTS OF THE EAST COAST UPPER LOW AND TROPICAL SYSTEM.
TEMPS WILL GENERALLY FALL INTO THE LOW/MID 60S BY SUNRISE THURSDAY. COLD FRONT WAS LOCATED ROUGHLY ALONG I-85 (AND EXTENDING SW AND NE FROM THERE). WHICH WILL HELP KEEP FOG FROM BECOMING ANY MORE OF AN ISSUE THAN THE LOW CEILINGS. /61/ SHOWERS AND A FEW THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON SOUTH OF I-85 AS A COLD FRONT MOVES THROUGH THE AREA.
CLEAR CONDITIONS TONIGHT WILL ALLOW AREAS AWAY FROM THE LAKE TO DROP INTO THE LOW TO MID 40S WITH THE TYPICAL COOL SPOTS POSSIBLY DIPPING INTO THE UPPER 30S. LOOKING AT SLIGHTLY COOLER CONDITIONS TOMORROW.
Details are not clear with weekend storm, but will be unsettled, breezy, and cooler with snow possible higher elevations. The low pressure area will approach the region late tonight into Thursday morning. Models are mainly focusing the higher amounts on the western slopes from Lassen Park southward. As the low moves towards the coast moisture will get drawn from the southwest into the coastal range and through Shasta County.
1006 PM EDT WED SEP 30 2015 RAINFALL WILL COME TO AN END THIS EVENING AS STRONG HIGH PRESSURE BUILDS SLOWLY SOUTH FROM CENTRAL CANADA.
HIGH PRESSURE WILL CONTINUE TO DOMINATE THE REGION TONIGHT. HOWEVER A PUSH OF SLIGHTLY WARMER AIR OVER N-CENTRAL AND NW MN. AND THE ADDITION OF A BIT MORE CLOUD COVER OVER THIS AREA WILL KEEP TEMPERATURES A FEW DEGREES WARMER. THE EASTERLY WIND REGIME INDUCED BY AN AREA OF HIGH PRESSURE OVER JAMES BAY HAS CONTINUED TODAY WITH AN E/NE WIND OVER WRN LAKE SUPERIOR AND MORE OF A SOUTHERLY COMPONENT TO THE WIND OVER N- CENTRAL MN. CALM WINDS AND A RESIDUAL COLD AIR MASS WILL BRING TEMPERATURES DOWN INTO THE LOWER TO MID 30S. THIS FEATURE WILL INDUCE A STRONGER NE WIND ACROSS THE NORTHLAND AND ALSO ACT TO KEEP TEMPERATURES NOTICEABLY COOLER ALONG THE NORTH SHORE AND INTO THE TWIN PORTS. THE GUSTY NE WINDS WILL MAKE IT FEEL EVEN COOLER.
1023 PM EDT WED SEP 30 2015 HIGH PRESSURE OVER ONTARIO PROVINCE WILL BUILD ACROSS QUEBEC AND PROVIDE DRY WEATHER FROM TONIGHT RIGHT ON THROUGH THE END OF THE WORK WEEK. ALONG WITH MUCH COOLER TEMPERATURES. STRENGTHENING HIGH PRESSURE OVER NORTHERN ONTARIO PROVINCE WILL SLOWLY BUILD EASTWARD ACROSS NORTHERN QUEBEC AS WE PROGRESS THROUGH THE OVERNIGHT INTO THURSDAY. WITH A MUCH COOLER AND DRIER AIRMASS IN PLACE. WITH A FEW SPOTS ACROSS THE LOWER ELEVATIONS POSSIBLY REACHING THE 60 DEGREE MARK. WESTERN NEW YORK LOOKS TO RESIDE BETWEEN AN AMPLIFYING LONG WAVE TROUGH OVER THE EASTERN CONUS/EASTERN CANADA AND A MID LEVEL RIDGE EXPANDING INTO NORTHERN ONTARIO. THIS WILL RESULT IN A QUASI STATIONARY FRONTAL BOUNDARY OFF THE EASTERN SEABOARD AND STRENGTHENING HIGH PRESSURE EXPANDING ACROSS NORTHERN ONTARIO AND QUEBEC.
Only feature that will help keep temps warmer will be the wind. Still, have trended to the cooler guidance. At most it seems may provide additional cloud cover, stronger winds and therefore, cooler temps. Regardless, latest guidance suggests a trof and associated sfc wave/fnt bringing a chance for precip late Tues into Wed. AVIATION: (For the 06z TAFs through 06z Thursday Night) Building high pressure will keep VFR conditions across the region with a north-northeast wind.
1043 AM EDT MON MAR 28 2016 A COLD FRONT WILL MOVE ACROSS THE REGION THIS AFTERNOON.
A NEBULOUS WESTERN ATLANTIC RIDGE EXTENDS ACROSS THE FLORIDA STRAITS AND NEAR THE ISLAND CHAIN.
AN UPPER LEVEL TROUGH HAS MOVED SOUTH-SOUTHEAST INTO SOUTHERN OREGON WITH ISOLATED TO SCATTERED LIGHT SHOWERS AND SNOW SHOWERS. THE COVERAGE OF SHOWERS WILL DIMINISH AFTER 7 AM AS THE TROUGH CONTINUES INTO CALIFORNIA AND NEVADA. WITH THE UPPER TROUGH IN THE GREAT BASIN.
AN UPPER LEVEL LOW OVER THE WESTERN US THIS MORNING WILL MOVE INTO THE SOUTHERN ROCKIES BY TUESDAY AS THIS LOW MOVES IN OUR GENERAL DIRECTION MOISTURE WILL GET PULL OUT OF THE GULF DRAGGING THE LATEST FRONTAL BOUNDARY BACK ACROSS OUR REGION LATE TOMORROW EVENING.
AN UPPER LOW HAS MOVED INTO CALIFORNIA WITH NORTHERLY FLOW MOVING INTO THE AREA.
/ISSUED / REGIONAL SURFACE ANALYSIS SHOWS COLD FRONT A LITTLE AHEAD OF SCHEDULE OF 24 HOUR PROGS. CONTINUE TO SEE SOME DRIZZLE OR LIGHT RAIN EMANATING FROM THE LOW CIGS IN PLACE OVER PRIMARILY THE EASTERN HALF OF THE AREA. REMAINDER OF THE SHORT TERM LOOKS BENIGN AS HIGH PRESSURE BUILDS NORTH OF THE REGION. SHOULD NOT HAVE TO WORRY ABOUT ANY FREEZING CONDITIONS WITH LOWS MID 30S FOR THE FAR NE SECTIONS.
PATCHY FOG ACROSS THE COASTAL ZONES LIFT THIS MORNING WITH IMPROVED VSBY AS A COLD FRONT MOVES EAST OF THE LOCAL AREA. LATEST OBSERVATIONS INDICATE THAT PATCHY FOG HAS DEVELOPED ALONG THE COASTAL ZONES EARLY THIS MORNING IN ADVANCE OF A COLD FRONT THAT IS POSITIONED TO OUR WEST. OVERNIGHT TEMPERATURES MUCH COOLER WITH LOWS IN THE MID 40S ALONG AND NORTH OF THE HWY 84 CORRIDOR.
ALL IN ALL IT WILL BE A BEAUTIFUL AFTERNOON WITH HIGHS AROUND NORMAL FOR THIS TIME OF YEAR IN THE LOWER TO MID 70S.
/issued 327 AM CDT MON MAR 28 2016/ The weather this week will be determined by an upper level low currently over the Pacific Northwest, that will drop south into the Four Corners region tomorrow. Increasing westerly winds on the southern periphery of the low will warm temperatures today and tomorrow.
MOZLEY UPPER LOW OVER THE PACIFIC NORTHWEST WILL DROP SOUTHEASTWARD INTO NV AND WRN UT BY THIS EVENING. TEMPERATURES SHOULD REBOUND BACK INTO THE 60S AND 70S ACROSS MOST OF THE LOWER ELEVATIONS. LEE TROF TONIGHT SHOULD KEEP TEMPERATURES ON THE MILDER SIDE FOR ALL AREAS.
THIS IS ALL POST-FRONTAL AND NORTH OF THE COLD FRONT WHICH BROUGHT BETWEEN A FEW HUNDRETHS AND TO AROUND 0.
1028 AM EDT MON MAR 28 2016 A DEEPENING LOW PRESSURE CENTER TRAVELING ACROSS THE EASTERN GREAT LAKES WILL BRING CLOUDY. COOLER AND BREEZY CONDITIONS TODAY. HIGH PRESSURE AND A COOL.
TODAY THROUGH TUESDAY NIGHT UPPER LOW CURRENTLY OVER THE PACIFIC NORTHWEST WILL DEEPEN AS IT DIVES SOUTHWARD INTO NEVADA TODAY.
1105 AM CDT MON MAR 28 2016 HIGH PRESSURE CONTINUES OVER THE AREA TODAY. /ISSUED 618 AM CDT MON MAR 28 2016/ HIGH PRESSURE WILL DOMINATE THROUGH THE PERIOD WITH WIDESPREAD VFR CONDITIONS EXPECTED. TODAY THROUGH TUESDAY NIGHT HIGH PRESSURE WILL DOMINATE TODAY WITH MAINLY CLEAR SKIES AND MILD TEMPERATURES EXPECTED. THE HIGH IS EXPECTED TO SLIDE OFF TO THE EAST AND NORTHEAST TONIGHT. OVERALL PROGRESSIVE PATTERN WILL CONTINUE AS A DEEP UPPER LOW WILL BE LOCATED OVER THE GREAT BASIN TUESDAY MORNING.
LARGE MID LEVEL LOW ACROSS THE PACIFIC NORTHWEST WILL DIVE SOUTHWARD THROUGH THE PERIOD TO THE CENTRAL ROCKIES AND PUSH MID LEVEL RIDGING ACROSS THE CENTRAL PLAINS TO THE EAST. HIGH PRESSURE ACROSS THE SOUTHERN PLAINS BEHIND YESTERDAYS COLD FRONT WILL MOVE TOWARDS THE OHIO VALLEY WITH SURFACE WINDS VEERING FROM THE NORTHEAST TODAY TO THE SOUTHEAST TUESDAY. HIGHS WILL WARM INTO THE LOWER TO MIDDLE 80S MOST OF THE AREA WITH PERHAPS UPPER 80S ACROSS THE UPPER VALLEY.
A WEAK COLD FRONT HAS STALLED OUT IN THE SOUTH THIS MORNING. AN UPPER RIDGE WILL BE FILLING IN BEHIND THE SHORT WAVE TODAY. OMEGA INCREASES AHEAD OF APPROACHING UPPER LOW TUESDAY NIGHT.
1204 PM EDT MON MAR 28 2016 GUSTY CONDITIONS WILL CONTINUE BEHIND THE COLD FRONT TODAY. HIGH PRESSURE WILL BUILD OVERHEAD TUESDAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. SHOWER COVERAGE IS INCREASING NORTH OF I-80 AS THE UPPER TROUGH PIVOTS ACROSS THE REGION. THE SYNOPTIC SET-UP LINES UP WELL WITH A LOCAL OFFICE STUDY THAT EMPHASIZED THE STRONGEST WIND GUSTS ALONG THE HIGH TERRAIN. HIGH PRESSURE WILL BUILD INTO THE REGION TUESDAY BEHIND THE EXITING UPPER-LEVER TROUGH. TEMPERATURES WILL BE COOLER THAN AVERAGE AS 850MB TEMPS WILL REMAIN BELOW ZERO STEEP LOW-LEVEL LAPSE RATES SHOULD ENCOURAGE MIXING.
MSAS ANALYSIS SHOWING A COLD FRONT FROM NEAR FLAGLER BEACH TO JUST SOUTH OF OCALA. MAX TEMPS IN THE LOWER/MID 80S ACROSS NE FL AND AROUND 80 ACROSS SE GA. A WEAK COLD FRONT WILL CONTINUE TO NUDGE SOUTH OF THE WATERS THIS AFTERNOON. WESTERLY WINDS WILL GRADUALLY SUBSIDE TODAY AS LOW PRESSURE RAPIDLY LIFTS NORTH TO THE NEW ENGLAND STATES.
725 AM EDT MON MAR 28 2016 A DEEPENING LOW PRESSURE CENTER TRAVELING ACROSS THE EASTERN GREAT LAKES WILL BRING CLOUDY. COOLER AND BREEZY CONDITIONS TODAY. HIGH PRESSURE AND A COOL.
614 AM CDT MON MAR 28 2016 HIGH PRESSURE WILL MOVE ACROSS THE MS VALLEY TODAY. WITH A BROAD AREA OF LOW PRESSURE SITUATED ACROSS THE SOUTHWEST U. SOUTHERLY WINDS WILL BE ON THE INCREASE DURING THE DAY TUESDAY AHEAD OF LARGE UPPER LEVEL LOW ACROSS THE WESTERN US.
649 AM CDT MON MAR 28 2016 AT H5 RIDGE OFF THE PACIFIC COAST WITH A CLOSED CUTOFF LOW OVER THE PACIFIC NORTHWEST. RIDGING THROUGH THE NORTHERN PLAINS WITH A TROUGH THROUGH THE GREAT LAKES INTO THE CAROLINAS. BUILDING RIDGE AND WARM 850MB TEMPERATURES OVER WESTERN NEBRASKA AT 12C.
1132 AM EDT MON MAR 28 2016 WARM AND DRY CONDITIONS WILL PREVAIL TODAY AS COLD FRONT EXITS OFF TO THE EAST. COOLER HIGH PRESSURE WILL FOLLOW INTO MID WEEK AS ANOTHER COLD FRONT PASSES OFF SHORE BY THIS EVENING.
HIGH PRESSURE ALOFT WILL RETURN TO UTAH FOR THE WEEKEND.
1057 AM CDT MON MAR 28 2016 High pressure building back into the Midwest this morning. with the ridge axis just off to the west of the Miss River. but the upper low continuing to pull away from the Great Lakes will limit the coverage somewhat. However, the upper-level flow is expected to trend increasingly neutral today, while high pressure will begin to build in at the surface. A weak low-level trof sinking toward the area from the Great Lakes will likely have the back edge of the clouds push slightly westward early today as it passes through. Widespread highs in the 50s, much cooler than yesterday across much of the forecast area, look like a good bet. In the shorter term, high pressure will be drifting through the Midwest tonight and Tuesday, with dry weather prevailing.
AN UPPER LEVEL LOW DROPPING SOUTH INTO CALIFORNIA TODAY WILL RESULT IN COOL CONDITIONS. SLIGHTLY COOLER THAN NORMAL TEMPERATURES WILL CONTINUE THROUGH MIDWEEK BEFORE A GRADUAL WARMING TREND OCCURS DURING THE SECOND HALF OF THE WEEK. EARLY MORNING WATER VAPOR SATELLITE IMAGERY SHOWS AN UPPER TROUGH OVER THE PAC NW DIGGING SOUTH INTO NORTHERN CALIFORNIA. AS THIS TROUGH CONTINUES TO DIG FROM NORTH TO SOUTH THROUGH CALIFORNIA TODAY. THE CORE OF THE UPPER TROUGH WILL SHIFT TO THE EAST OVER THE GREAT BASIN BY TOMORROW WHICH WILL SHOULD DIMINISH SHOWER CHANCES IN OUR AREA.
/ISSUED 257 AM CDT MON MAR 28 2016/ BENIGN WX EXPECTED FOR THE SHORT TERM PERIOD AS UA RIDGING COMMENCE TO PROGRESS EAST ACROSS THE CENTRAL U. COURTESY OF SFC LEE TROUGHING DEEPENING IN RESPONSE TO THE BROAD UA LOW DIGGING SE ACROSS NRN CALI.
Broad southwest flow aloft will develop over the forecast area as low pressure sets up out in the Plains on Wed. In addition, rich, low level moisture from the Gulf of Mexico will be transported northward into the lower/mid Ms River Valley warm sector.
WARMER AND STRONGER WIND EXPECTED ON TUESDAY BUT RH VALUES SHOULD BE CONSIDERABLY HIGHER AS LOW LEVEL MOISTURE INCREASES.
WIDESPREAD STRONG WINDS ARE EXPECTED ACROSS THE MOJAVE DESERT AND SOUTHERN GREAT BASIN TODAY AS A LOW PRESSURE SYSTEM PUSHES INTO THE AREA. THE LATEST COMPUTER MODEL WIND FORECASTS AND THE GENERAL TRACK OF THE APPROACHING LOW PRESSURE SYSTEM DIVING FROM CENTRAL CALIFORNIA INTO SOUTHERN NEVADA THIS AFTERNOON HAVE BOOSTED CONFIDENCE THAT GUSTS OF 48-52 KTS ARE LIKELY DURING THIS PERIOD. STRONGEST WINDS WILL BE ALONG A BELT FROM RIDGECREST TO ELY AND POINTS EAST.
LOWS WILL RANGE FROM THE UPPER 30S TO MIDDLE 40S WITH AFTERNOON HIGHS MOSTLY IN THE LOW 70S.
PRECIP FROM YESTERDAY'S COLD FRONT HAS MOVED EAST AND OUT OF MIDDLE TENNESSEE.
723 AM EDT MON MAR 28 2016 SHOWERS AND THUNDERSTORMS WILL CROSS THE AREA IN ASSOCIATION WITH A COLD FRONT THROUGH THE MORNING. HIGH PRESSURE WILL RETURN AFTER TODAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. SHOWERS HAVE MOVED ACROSS MOST OF THE AREA ALREADY THIS MORNING IN ADVANCE OF A COLD FRONT THAT LOOKS TO BE SNEAKING INTO WESTERN PENNSYLVANIA AT THIS HOUR.
THE SYSTEM WILL ALSO USHER IN MUCH COOLER TEMPERATURES BEGINNING TUESDAY.
An upper level trough across the pacific northwest will dig southeast into NV and UT Tonight and amplify. A downstream upper level ridge will amplify across the the central and southern plains. the low-level jet will increase across western OK and the western half of KS through the night. southeast surface winds will keep overnight lows in the lower to mid 40s. High cloud should stay rather thick with strong south winds beginning to saturate the lower levels in central Kansas.
(Tuesday) Southeasterly return flow around departing ridge will strengthen during the day on Tuesday. midlevel ridge axis amplifies and moves toward mid-Mississippi Valley which should help lead to slightly warmer high temperatures compared to that expected of today.
COOLER H5 TEMPS (-11C) CAN PROMOTE SOME SMALL HAIL DEVELOPMENT AS WELL. PREVIOUS DISC) PRE FRONTAL MOISTURE BAND WILL EXIST ACROSS THE AREA TODAY WITH THE HIGHEST VALUES OVER THE SOUTH. LOW PRESSURE NORTHEAST OF FLORIDA WILL LIFT OUT AND THE PRESSURE GRADIENT WILL DIMINISH THIS AFTERNOON.
MODEL SOUNDINGS SHOW THE LOW-LEVEL MOISTURE DISSIPATING.
Dry with warmer temperatures by end of the week. Satellite imagery shows the strong vort dropping southward into NorCal as the cold upper low closes off over the PacNW. Showers will continue to wrap-around into the northern Sierra today, and potentially the foothills and eastern portions of the valley this afternoon, as the low consolidates over the Great Basin. Main impacts will be centered around breezy northerly winds in the Central Valley and scattered to numerous showers over the northern Sierra where accumulating snow will be possible across the higher elevations at times into early Tuesday. Upper low forecast to shift a little further east on Tuesday limiting shower chances to mainly the northern Sierra.
High pressure was positioned over the Central United States this morning. temperatures fell near/below freezing for much of the CWA early this morning and warmed back above freezing by mid morning. the center of high pressure sets up east of the CWA with winds becoming southeasterly around 5 to 10 mph over the CWA.
AN UPPER LEVEL LOW WILL DIG INTO THE GREAT BASIN TONIGHT INTO TUESDAY.
However, the upper-level flow is expected to trend increasingly neutral today, while high pressure will begin to build in at the surface. A weak low-level trof sinking toward the area from the Great Lakes will likely have the back edge of the clouds push slightly westward early today as it passes through. Widespread highs in the 50s, much cooler than yesterday across much of the forecast area, look like a good bet. In the shorter term, high pressure will be drifting through the Midwest tonight and Tuesday, with dry weather prevailing.
702 AM CDT MON MAR 28 2016 AN UPPER LEVEL RIDGE WILL BUILD OVER THE NORTHLAND TODAY AND TUESDAY. HIGH PRESSURE AT THE SFC WILL KEEP WINDS LIGHT TODAY. ON TUESDAY THE HIGH WILL MOVE ACROSS LOWER MICHIGAN AND THE OHIO VALLEY. WINDS WILL THEN INCREASE WITH A RETURN FLOW OF SOUTHERLY WINDS ON THE BACKSIDE OF THE HIGH. TEMPERATURES WILL WILL BE WARMER TODAY. BUT THEN BE MUCH WARMER TOMORROW IN THE STRONG WARM AIR ADVECTION PATTERN THAT HAS SET UP IN THE SOUTHERLY FLOW. THIS MORNING PATCHY FOG DEVELOPED UNDER THE RIDGE WHERE SKIES WERE CLEAR IN NWRN WI.
A DEEPENING LOW PRESSURE SYSTEM WILL THEN BRING STRONG AND GUSTY WINDS THIS AFTERNOON AND TUESDAY.
/issued 406 AM CDT MON MAR 28 2016/ (Today and Tonight) Warmer temperatures are forecast today with afternoon highs across West Central Texas rebounding into the low to mid 70s for most locations.
WIDESPREAD STRONG WINDS ARE EXPECTED ACROSS THE MOJAVE DESERT AND SOUTHERN GREAT BASIN TODAY AS A LOW PRESSURE SYSTEM PUSHES INTO THE AREA.
733 AM EDT MON MAR 28 2016 A COLD FRONT WILL MOVE ACROSS THE REGION THIS AFTERNOON.
652 AM CDT MON MAR 28 2016 LOW PRESSURE WILL CONTINUE TO DEVELOP OVER THE NORTHERN AND CENTRAL HIGH PLAINS TO DAY WITH AN INCREASING EASTERLY SURFACE FLOW THROUGH THE DAY. UPDATED LATEST SENSIBLE WEATHER ELEMENTS AND ADJUSTED THE MORNING TEMPERATURE TREND AS TEMPERATURES WERE COOLER THAN FORECAST OVER PARTS OF THE SOUTHWEST AND A BIT WARMER THAN FORECAST FOR SOME AREAS OF THE NORTH CENTRAL INTO THE JAMES RIVER VALLEY. READINGS WILL LIKELY BE A FEW DEGREES WARMER THAN YESTERDAY WITH SOME LOCATIONS REACHING THE LOW 60S.
1252 PM EDT MON MAR 28 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW A LARGE RIDGE OF HIGH PRESSURE WILL STRENGTHEN OVER THE UPPER MIDWEST TODAY.
LATEST LAPS GUIDANCE SHOWS A SURFACE THETA-E TROUGH ALONG THE INITIATION REGION SO DRIER AIR DOES EXIST AT THE SURFACE SO NOT EXPECTING MUCH ACCUMULATION. THE WEAK COLD FRONT NOW LIES WELL OFFSHORE WITH SURFACE RIDGING OVERHEAD PROVIDING A LIGHT EAST-NORTHEAST FLOW. THE HIGH WILL GRADUALLY SHIFT MORE TOWARDS THE EAST THIS AFTERNOON SETTING UP A WEAK SOUTHEAST FLOW BUT HELPING TO ENHANCE THE LOW-LEVEL MOISTURE ACROSS THE REGION. STRATUS AND PATCHY FOG LOOKS TO DEVELOP WITH THE LIGHT UPSLOPE FLOW ACROSS THE BRUSH COUNTRY AND THEN SPREAD BENEATH THE LOWERING INVERSION AREA-WIDE. DAYTIME HIGHS LOOK FAIRLY SIMILAR TO TODAY THOUGH WE SHOULD KEEP THE CLOUDS AROUND LONGER SO WE COULD END UP A DEGREE OR TWO COOLER.
SUNNY AND WARMER WEATHER WILL OCCUR THIS AFTERNOON. AND THE LOWEST AFTERNOON AND EARLY EVENING HUMIDITY VALUES WILL BE NEAR PONCA CITY. WARMER AND STRONGER WIND EXPECTED ON TUESDAY BUT RH VALUES SHOULD BE CONSIDERABLY HIGHER AS LOW LEVEL MOISTURE INCREASES.
A MID-LEVEL TROUGH WAS FROM THE GREAT LAKES TO THE OHIO VALLEY WITH SOUTHWESTERLY FLOW ACROSS THE GULF FL. HIGH PRESSURE ACROSS THE SOUTHEAST GULF WILL PULL BACK TO THE BAHAMAS TODAY AS A DIFFUSE FRONT MOVES INTO THE NORTHEAST GULF.
618 AM CDT MON MAR 28 2016 HIGH PRESSURE WILL DOMINATE THROUGH THE PERIOD WITH WIDESPREAD VFR CONDITIONS EXPECTED. TODAY THROUGH TUESDAY NIGHT HIGH PRESSURE WILL DOMINATE TODAY WITH MAINLY CLEAR SKIES AND MILD TEMPERATURES EXPECTED. THE HIGH IS EXPECTED TO SLIDE OFF TO THE EAST AND NORTHEAST TONIGHT. OVERALL PROGRESSIVE PATTERN WILL CONTINUE AS A DEEP UPPER LOW WILL BE LOCATED OVER THE GREAT BASIN TUESDAY MORNING.
LOW PRESSURE WILL CONTINUE TO DEVELOP OVER THE NORTHERN AND CENTRAL HIGH PLAINS TO DAY WITH AN INCREASING EASTERLY SURFACE FLOW THROUGH THE DAY. UPDATED LATEST SENSIBLE WEATHER ELEMENTS AND ADJUSTED THE MORNING TEMPERATURE TREND AS TEMPERATURES WERE COOLER THAN FORECAST OVER PARTS OF THE SOUTHWEST AND A BIT WARMER THAN FORECAST FOR SOME AREAS OF THE NORTH CENTRAL INTO THE JAMES RIVER VALLEY. READINGS WILL LIKELY BE A FEW DEGREES WARMER THAN YESTERDAY WITH SOME LOCATIONS REACHING THE LOW 60S.
705 AM EDT MON MAR 28 2016 AVIATION SECTION HAS BEEN UPDATED BELOW A LARGE RIDGE OF HIGH PRESSURE WILL STRENGTHEN OVER THE UPPER MIDWEST TODAY.
929 AM EDT MON MAR 28 2016 GUSTY CONDITIONS WILL CONTINUE BEHIND THE COLD FRONT TODAY. HIGH PRESSURE WILL BUILD OVERHEAD TUESDAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. COLD FRONT CONTINUES TO MOVE EAST THIS MORNING. SYNOPTIC SET-UP LINES UP WELL WITH A LOCAL OFFICE STUDY THAT EMPHASIZED THE STRONGEST WIND GUSTS ALONG THE HIGH TERRAIN. HIGH PRESSURE WILL BUILD INTO THE REGION TUESDAY BEHIND THE EXITING UPPER-LEVER TROUGH. TEMPERATURES WILL BE COOLER THAN AVERAGE AS 850MB TEMPS WILL REMAIN BELOW ZERO STEEP LOW-LEVEL LAPSE RATES SHOULD ENCOURAGE MIXING.
Otherwise, temperatures will begin to warm up quickly this morning with clear skies, increasing southerly winds and upper level ridging building into the area.
615 AM CDT MON MAR 28 2016 MOSTLY SUNNY SKIES EXPECTED TODAY WITH HIGH PRESSURE SHIFTING EASTWARD THROUGH THE STATE TODAY. WITH A WARM FRONT ALOFT NOSING UP THROUGH THE WESTERN CWA THIS AFTERNOON. BRINGING TEMPERATURES INTO THE LOW TO MID 60S ACROSS THE FORECAST AREA BY TUESDAY AFTERNOON.
A LOW PRESSURE TROF IS OVER MUCH OF THE WESTERN US. A COLD FRONT WILL BRING COOL, MOIST AIR FROM THE NORTH WITH MVFR/IFR CIGS OVER THE CANADIAN BORDER BY MID-AFTERNOON.
1002 AM CDT MON MAR 28 2016 HIGH PRESSURE BUILDING INTO THE REGION AND CLOUDS HAVE CLEARED OUT OF EASTERN REGIONS OF THE MIDSOUTH. EXPECT SLIGHTLY COOLER THAN NORMAL TEMPS THIS AFTERNOON WITH A LIGHT NORTH BREEZE. LOWS WILL RANGE FROM THE UPPER 30S TO MIDDLE 40S WITH AFTERNOON HIGHS MOSTLY IN THE LOW 70S.
READINGS WILL BE CONSIDERABLY COOLER NEAR THE BAY AND LAKE DUE TO THE SOUTHERLY WIND TRAJECTORY.
/ISSUED 334 AM CDT MON MAR 28 2016/ COLD FRONT HAS FINALLY PUSHED SOUTH AND EAST OF OUR SOUTHEAST PARISHES BUT CLOUD COVER HAS BEEN STUBBORN TO MOVE OUT OF OUR SOUTHEAST ZONES THIS MORNING.
HIGH PRESSURE STRETCHED FROM CENTRAL TEXAS INTO THE LOWER MISSOURI VALLEY AT 07Z WITH SHORT WAVE RIDGING MOVING INTO THE NORTHERN PLAINS. UPPER RIDGE IS FORECAST TO CONTINUE TO AMPLIFY OVER THE PLAINS REGION TODAY IN ADVANCE OF A STRONG UPPER TROUGH MOVING INTO THE GREAT BASIN. SIMILAR SITUATION FOR TUESDAY NIGHT WITH EVEN STRONGER LOW LEVEL JET INDICATED AS SURFACE SYSTEM APPROACHES FROM THE WEST AND UPPER FLOW INTENSIFIES ACROSS THE REGION AS UPPER LOW MOVES INTO WESTERN NEBRASKA RIGHT BEHIND THE SURFACE SYSTEM.
628 PM EST SUN JAN 3 2016 A RE-ENFORCING COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT.
A SECONDARY COLD FRONT WAS ANALYZED ACROSS SOUTHERN MO WITH SHARPLY COLDER TEMPERATURES NOTED BEHIND THE BOUNDARY. LOW TEMPERATURES WILL EASILY DROP INTO THE LOW AND MID 20S AREA-WIDE.
THAT SAID STILL NOT EXPECTING ANY FREEZING TEMPS TONIGHT.
An upper trof is over western Ontario today, producing scattered light snow showers as seen on surface observations and the Dryden and Thunder Bay radars west of Lake Superior. This trof will drop south and swing through the Ohio Valley late tonight into Monday morning, heading off to the east Monday afternoon. Monday afternoon the trof axis will move off to the east and available moisture will get pinched between an inversion around 6k feet and drying taking place below 850hPa. Winds will slack off as a center of high pressure slides by just to our north, allowing temperatures to tumble.
1004 PM EST SUN JAN 3 2016 LOW PRESSURE WILL MOVE SLOWLY EAST ACROSS SOUTHERN QUEBEC. DRIVING AN ARCTIC COLD FRONT THROUGH THE REGION THIS EVENING.
A pattern shift is indicated by global models with a large high amplitude ridge developing over the eastern Pacific with downstream troughing opening up the door for some colder air to move south over the central CONUS. A cold front is expected to move through the region Fri night with gradually colder air streaming in behind the front Days 6-7/Sat-Sunday.
/ISSUED 322 PM CST SUN JAN 3 2016/ PLENTY OF SUNSHINE CWA-WIDE HAS FINALLY ARRIVED AS THE LOW CLOUD DECK THAT WAS SLOW TO ERODE/SHIFT SOUTH YESTERDAY. AMPLIFIED UA RIDGING WAS TRANSLATING EAST TO ACROSS THE CENTRAL CONUS WHILE ITS SFC COUNTERPART HAS KEPT SFC WINDS OUT OF THE NORTH. IT WILL ONCE AGAIN RAISE CONCERNS FOR A HEAVY FROST AND/OR FREEZING FOG. PATCHY FREEZING FOG COULD BECOME REALIZED OVERNIGHT. THE UA RIDGE AXIS WILL BE SHIFTING EAST OF THE SOUTHERN PLAINS WHILST 500 MB HEIGHT FALLS OCCUR IN RESPONSE TO AN UA TROUGH APPROACHING FROM THE DESERT SW. AS WELL AS THE RETURN OF COOLER HIGH TEMPS /30S AND 40S/. /29 SERIES OF MODEST UPPER TROUGHS WILL PASS OVER THE AREA IN THE WEEK AHEAD.
/ISSUED 205 PM CST SUN JAN 3 2016/ THE COOLER AIRMASS THAT THE FRONT BROUGHT WILL LET TEMPERATURES DIP A LITTLE LOWER TONIGHT THAN LAST.
AN UPPER LEVEL LOW CENTERED OVER NORTHWEST WASHINGTON WILL MOVE NORTH INTO BRITISH COLUMBIA TONIGHT AND MONDAY.
A STRONG COLD FRONT WILL MOVE THROUGH THE AREA ON MONDAY.
BUT THE CLOUD COVER WILL LEAD TO WARMER NIGHT. SOUTHERLY WINDS WILL INCREASE TO 10 TO 20 MPH ACROSS EASTERN UTAH ON MONDAY AS A NEGATIVELY TILTED TROUGH SWINGS INTO THE FOUR CORNERS AHEAD OF A DECAYING CLOSED LOW OVER THE PACIFIC NORTHWEST. SOUNDINGS AROUND MIDNIGHT MONDAY NIGHT AT CANYONLANDS SUGGEST AN ELEVATED WARM LAYER OF ABOUT 3 DEGREES C WHICH IS DEFINITELY BORDERLINE FOR A SHORT PERIOD OF FREEZING RAIN IN THE LOW VALLEYS WHICH REMAIN PROTECTED FROM ANY SFC WAA.