Aikyam-Lab/Synoptic-Bench huggingface dataset:
1100 PM CDT Wed Apr 22 2015 Weak surface ridging will build into northern/northeastern and central Missouri tonight with light to calm winds expected. So with clear skies in the that portion of the forecast area and light winds, temperatures are likely to fall into the lower 30s with some sheltered areas likely falling into the upper 20s.
/ISSUED 321 PM CDT WED APR 22 2015/ A COLD FRONT CURRENTLY EXTENDS ALONG AND JUST SOUTH OF I40 THIS AFTERNOON. WILL KEEP CHC POPS IN ALONG THIS BOUNDARY ACROSS THE S AND SE TOMORROW AFTERNOON AS ANOTHER MID LEVEL VORT MAX LIFTS OVER THE RIDGE INTO THE RED RIVER VALLEY. SOME CONVECTION MAY LIFT OUT OF NORTH TEXAS INTO OUR SOUTHERN ZONES LIMITING AFT/EVE DESTABILIZATION ALONG THE DRYLINE OVER SOUTHERN OK BEFORE THE UPPER TROUGH MOVES ACROSS THE CENTRAL PLAINS.
A COLD FRONT IS CURRENTLY MOVING ACROSS THE TENNESSEE VALLEY AND A LINE OF SHOWERS AND STORMS HAVE DEVELOPED ALONG THIS BOUNDARY.
621 PM CDT WED APR 22 2015 LINGERING CLOUD COVER/SNOW SHOWERS OVER THE MN ARROWHEAD FAR NRN WISCONSIN ZONES WILL EXIT TO THE EAST OVERNIGHT AS A RIDGE OF HIGH PRESSURE AND MUCH DRIER AIR BUILDS ACROSS MN. THE LOWEST VALUES WILL BE FOUND ACROSS NORTH CENTRAL MN WHERE DEW POINTS ARE CURRENTLY IN THE SINGLE DIGITS TO LOW TEENS. COMBINED WITH SFC RIDGING/LIGHT WINDS AND CLEAR SKIES WILL RESULT IN VERY EFFICIENT RADIATIONAL COOLING. A RIDGE OF HIGH PRESSURE WILL EXTEND FROM NW ONTARIO THROUGH WESTERN LAKE SUPERIOR TO SOUTHERN WISCONSIN AS OF THURSDAY EVENING.
1047 PM EDT WED APR 22 2015 LOW PRESSURE WILL APPROACH THE REGION FROM THE WEST OVERNIGHT. THE WEATHER PATTERN WILL REMAIN UNSETTLED THROUGH THE WEEKEND AS LOW PRESSURE ONLY SLOWLY MOVES INTO THE MARITIMES. THE ACCOMPANYING UPPER LEVEL LOW IS ACROSS ONTARIO THIS AFTERNOON AND WILL MOVE INTO NORTHERN NEW ENGLAND THU PM. UNSETTLED WEATHER WILL CONTINUE THROUGH THE SHORT TERM PERIOD AS UPPER LEVEL LOW PRESSURE REMAINS ACROSS THE REGION RIGHT THROUGH THE PERIOD. THERE COULD EVEN BE SOME SNOW MIXED IN AT NIGHT MAINLY ACROSS THE HIGHER TERRAIN OF THE NORTH AND WEST.
THIS FEATURE COMBINED WITH ANOTHER FRONT SINKING SOUTH TOWARD THE FL/GA BORDERS AND THE REMNANT FRONTAL TROUGH TO THE SOUTH AS WELL AS THE SEA BREEZE CIRCULATIONS SHOULD SUPPORT HIGHER CHANCES FOR SHOWERS AND STORMS ACROSS THE REGION COMPARED TO TODAY.
815 PM CDT WED APR 22 2015 THE MIDWEST REMAINS UNDER THE INFLUENCE OF A STACKED LOW PRESSURE SYSTEM CENTERED OVER ONTARIO.
615 PM CDT WED APR 22 2015 UPPER AIR PATTERN OVER NORTH AMERICA LARGE AREA OF LOW PRESSURE AND BROAD CYCLONIC FLOW CENTERED JUST NORTH OF THE GREAT LAKES. FURTHER WEST AN UPPER LEVEL RIDGE WAS TRACKING ACROSS THE NORTHERN ROCKIES OVER THE TOP OF ANOTHER LARGE AREA OF LOW PRESSURE SPINNING OFF THE SOUTHWEST COAST OF CALIFORNIA. AND THE SOUTHERLY FLOW WILL BEGIN TO ADVECT LOW LEVEL MOISTURE UP THE HIGH PLAINS AND INTO SOUTHWEST NEBRASKA. THE UPPER LEVEL RIDGE AND WARMER TEMPERATURES ALOFT MOVE EASTWARD TOWARD THE CENTRAL CONUS ON THURSDAY. THIS SHOULD PROMOTE AMPLE MIXING IN BL AND WITH WARM AIR ALOFT TEMPERATURES STILL MAKE IT TO NEAR NORMAL IN THE LOW TO MID 60S FOR THE AFTERNOON HOURS.
1142 PM CDT WED APR 22 2015 UPPER AIR PATTERN OVER NORTH AMERICA LARGE AREA OF LOW PRESSURE AND BROAD CYCLONIC FLOW CENTERED JUST NORTH OF THE GREAT LAKES. FURTHER WEST AN UPPER LEVEL RIDGE WAS TRACKING ACROSS THE NORTHERN ROCKIES OVER THE TOP OF ANOTHER LARGE AREA OF LOW PRESSURE SPINNING OFF THE SOUTHWEST COAST OF CALIFORNIA. AND THE SOUTHERLY FLOW WILL BEGIN TO ADVECT LOW LEVEL MOISTURE UP THE HIGH PLAINS AND INTO SOUTHWEST NEBRASKA. THE UPPER LEVEL RIDGE AND WARMER TEMPERATURES ALOFT MOVE EASTWARD TOWARD THE CENTRAL CONUS ON THURSDAY. THIS SHOULD PROMOTE AMPLE MIXING IN BL AND WITH WARM AIR ALOFT TEMPERATURES STILL MAKE IT TO NEAR NORMAL IN THE LOW TO MID 60S FOR THE AFTERNOON HOURS.
857 PM PDT WED APR 22 2015 PERIODS OF CLOUDS AND COOLER WEATHER WILL PERSIST FOR THE REMAINDER OF THE WORK WEEK DUE TO A SERIES OF DISTURBANCES MOVING OFF THE PACIFIC.
WEAK SURFACE RIDGING OVER THE SOUTH-CENTRAL FL PENINSULA THIS EVENING. RIDGING OVER THE S/C PENINSULA WITH LIGHT SE WINDS VEERING S/SSW OVERNIGHT WITH LIGHT WINDS CONTINUING ON THU.
753 PM EDT WED APR 22 2015 AN APPROACHING WEAK COLD FRONT WILL MOVE THROUGH THE FORECAST AREA EARLY THURSDAY.
633 PM CDT WED APR 22 2015 315 PM CDT MAIN FORECAST CONCERNS/CHALLENGES ARE WITH THE BELOW NORMAL TEMPS TO PERSIST AND WITH WELL BELOW NORMAL TEMPS AROUND OR BELOW FREEZING TONIGHT AND THURSDAY NIGHT. WITH THE LARGE UPPER LEVEL LOW STILL SPINNING JUST NORTHEAST OF THE GREAT LAKES REGION. ANOTHER COLD NIGHT IN THE LOWER 30S IS LIKELY THURSDAY NIGHT AND WITH HIGH PRESSURE AND LIGHT TO CALM WINDS SETTLING IN.
PESKY CLD CVR SLOW TO ERODE WITHIN LL THERMAL TROUGH PIVOTING EWD ACRS THE AREA THIS AFTN. UPSTREAM ADVT COMPONENT TO THE FLW WKNG WITHIN LL RIDGE AXIS HWVR DRIER AIR IS ENTRAINING AND SUSPECT W/SUNDOWN WRN/CNTRL AREAS WILL CLR OUT AS DIURNALLY DRIVEN SC DECAYS. STG NRN STREAM SW TROUGH OFF THE COAST OF NW BC TO CREST WRN RIDGE AND SIGNALS BEGINNING OF WHAT WILL BE QUITE A SIG DOWNSTREAM WRN US RIDGE/ERN US TROUGH AMPLIFICATION EVENT HEADING INTO ERLY NXT WEEK. OTRWS PEAKING LL THERMAL RIDGE AHD OF THIS SYS WILL FOSTER ABV NORMAL TEMPS SAT-MON TO WELL BLO NORMAL AS PROGRESSIVELY COLDER AIR WORKS SWD ACRS THE ERN US. MVFR STRATOCU DECK AND SCT FLURRIES WITHIN LOW LEVEL THERMAL TROUGH SHOULD SHIFT EAST OF THE TERMINALS BY LATE AFTN WITH MAINLY VFR CONDITIONS AND LIGHT WINDS ANTICIPATED TONIGHT/FRIDAY MORNING.
342 PM EST THU FEB 4 2016 AN AREA OF LOW PRESSURE MOVING UP THE EAST COAST MAY BRING SOME LIGHT SNOW TO PARTS OF NORTHEAST PENNSYLVANIA AND SULLIVAN COUNTY NEW YORK TONIGHT INTO EARLY FRIDAY. WE WILL FEEL A BIT COOLER FRIDAY AND OVER THE WEEKEND WITH HIGHS GENERALLY IN THE 30S. PREFER THE HIGHER RESOLUTION OF THE RUC THIS CLOSE IN.
TEMPERATURES THIS AFTERNOON WILL LIKELY REACH THE LOWER TO MID 30S ACROSS MUCH OF THE REGION. TEMPERATURES TONIGHT WILL GENERALLY BE IN THE LOWER TO MID TEENS.
TEMPERATURES ONCE AGAIN LOOK TO TOP OUT NEAR 30 NORTH AND INTO THE LOW TO MID 30S SOUTH.
A cold front has moved through the Northern Rockies today causing widespread snow. A low amplitude ridge of high pressure slides over the region on Friday causing a reduction in shower activity.
332 PM CST THU FEB 4 2016 A COUPLE OF UPPER TROUGHS WILL DIG ACROSS OUR AREA IN THE SHORT RANGE.
TODAY THROUGH FRIDAY NIGHT UPPER LEVEL ANALYSIS HAS A TROF MOVING INTO THE GREAT LAKES AREA. WITH A RIDGE BUILDING ACROSS THE ROCKIES. HIGH PRESSURE RESIDES ACROSS THE DAKOTAS WITH A WEAK LEE TROF ACROSS CENTRAL MONTANA. UPPER LEVEL RIDGE ACROSS THE WESTERN CONUS WILL PUSH INTO THE NORTHERN PLAINS. WITH THE BEST CHANCE FOR SNOW SHOWERS STILL LOOKING TO BE OVER THE HIGHER TERRAIN OF NORTHEAST WY AND THE NORTHERN BLACK HILLS. WINDS WILL SWITCH TO THE WEST-NORTHWEST AND INCREASE OVER NORTHERN AND WESTERN PORTIONS OF THE CWA LATE TONIGHT AS ASSOCIATED SURFACE TROF PASSES THROUGH. UPPER RIDGE RE-ESTABLISHES ITSELF ACROSS THE ROCKIES AND NORTHERN PLAINS. WITH WESTERLY BOUNDARY LAYER FLOW BRINGING WARMER AIR INTO THE REGION. UPPER RIDGE CONTINUES TO BUILD OVER THE NORTHERN PLAINS FRIDAY NIGHT.
CURRENT STORM HAS SLOWED ITS EXIT AND SO HAVE EXTENDED THE WINTER WEATHER ADVISORY INTO THE LATE NIGHT FOR THE VALLEY ZONES AND THROUGH FRI MORNING FOR THE HIGHLAND ZONES. THEN TURNING COLDER FOR SUN AFTER THE SECOND STORMS COLD FRONT MOVES THROUGH.
WIND SPEEDS WILL INCREASE TO 10-15 KT TOMORROW IN ADVANCE OF THE NEXT LEE TROUGH WHICH WILL LEAD TO AN INCREASE IN HIGH CLOUDS TOMORROW BUT ALLOW VFR CONDITIONS TO CONTINUE. POLAR JET DOMINATED TROUGHING OVER THE CENTRAL US CONTINUES TO KEEP A DRY PATTERN IN PLACE. TEMPERATURES WILL BE A FEW DEGREES COOLER THAN NORMAL TODAY AND SEVERAL DEGREES BELOW NORMALS FOR TONIGHT WITH THE DRY AIR BRINGING MOST AREAS TO A LIGHT FREEZE.
A WARM FRONT IS MOVING THROUGH THE REGION TODAY. THE PCPN WILL LINGER MAINLY IN THE AREA MOUNTAINS THIS EVENING BEFORE A RIDGE OF HIGH PRESSURE BRINGS DRY CONDITIONS TO THE AREA LATER TONIGHT AND TOMORROW MORNING.
1256 PM EST THU FEB 4 2016 A COLD FRONT CROSSING THE AREA WILL STALL NEAR THE COAST TODAY.
320 PM EST THU FEB 4 2016 THE LOW STRATUS DECK CONTINUES TO SLOWLY ERODE THIS AFTERNOON FROM SOUTHWEST TO NORTHEAST AS HIGH PRESSURE BUILDS INTO THE REGION. THERE WILL BE PLENTY OF RADIATIONAL COOLING ALLOWING FOR TEMPS TO DIP INTO THE LOW 20S. TEMPERATURES WILL REBOUND ON FRIDAY TO NEAR NORMAL VALUES WITH PLENTIFUL SUNSHINE AND HIGH PRESSURE OVERHEAD. TEMPS WILL ONCE AGAIN DIP INTO THE LOW 20S WITH A RIDGE/VALLEY SPLIT EXPECTED.
LATEST SURFACE OBS SHOW TEMPS HAVE WARMED ABOVE FREEZING ACROSS THE MID STATE WITH MOST LOCATIONS NOW IN THE MID TO UPPER 30S. HIGHS STILL LOOK TO REACH THE LOW TO MID 40S ACROSS THE FORECAST AREA. GOOD FLYING WEATHER NEXT 24 HOURS WITH HIGH PRESSURE IN CONTROL. CLIPPER SYSTEM WILL APPROACH FROM THE NORTHWEST BUT BRIDGING ACROSS THE FRONT WILL KEEP CLIPPER FROM MAKING IT THIS FAR SOUTH AND TURN AROUND AND HEAD BACK NORTH FRIDAY AFTERNOON AS 1034 MBAR HIGH PRESSURE CENTER WORKS JUST TO OUR SOUTH.
THE SURFACE COLD FRONT AND LOW LEVEL FRONTOGENESIS IS TRAILING A LITTLE BEHIND THE UPPER WAVE AND THAT LAG WILL INCREASE THROUGH THE EVENING.
THIS RIDGE WILL SHIFT INTO EASTERN CONUS INTO THE GULF INTO FRIDAY.
A STRONG BACK DOOR COLD FRONT IS EXPECTED TO PUNCH SOUTHWARD ACROSS THE EASTERN PLAINS FRI MORNING.
THIS EVENING THROUGH FRIDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTHWEST SK. WITH FRONTAL BOUNDARY TO THE NORTH AND EAST OF THE AREA AND A TROF STRETCHING SOUTHWARD INTO EASTERN WY. UPPER LEVEL ANALYSIS SHOWS LARGE SCALE TROF TO THE EAST OF THE REGION. WITH A RIDGE ALONG THE WEST COAST. THE TROF WILL HELP TO MIX SOME MILDER AIR ALOFT DOWN TO THE SURFACE ON FRIDAY. WITH LOWS MOSTLY IN THE LOW TO MID 20S.
THIS WAS LEAVING CLEAR SKIES UNDER A WEAK TRANSITORY RIDGE WITH TEMPERATURES IN THE SINGLE DIGITS OVER THE DEEPEST SNOW COVER ALONG THE HIGHWAY 20 CORRIDOR WITH MAINLY TEENS ELSEWHERE. ESPECIALLY ALONG THE HIGHWAY 20 CORRIDOR AND NORTH.
TEMPERATURES WILL BE WARMER TODAY AS PREMIUM DOWNSLOPE EFFECTS FROM WESTERLY WINDS BOOST THE LOW LEVEL WARMING.
THE 500 MB TROFFING OVER TX TODAY WILL CONTINUE TO SHIFT EAST. THIS WILL ALLOW WEAK RIDGING TO BUILD OVER THE TX COASTLINE TONIGHT AND FRI. AT THE SURFACE THE RIDGE WILL ALSO SLIDE EAST WHICH WILL ALLOW THE PGF TO WEAKEN STEADILY OVER THE SHORT TERM PERIOD.
1005 AM CST THU FEB 4 2016 HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE FORECAST AREA TODAY WITH SUNNY SKIES AND COOL TEMPERATURES. STILL LOOKS LIKE A MAJORITY OF THE FORECAST AREA WILL SEE FREEZING TEMPERATURES TONIGHT. COOL HIGH PRESSURE CONTINUES TO BUILD INTO THE REGION THIS MORNING. TONIGHT WITH CLEAR SKIES, LIGHT WINDS, AND A DRY AIR MASS, TEMPS WILL TUMBLE TO FREEZING AT MOST LOCATIONS AWAY FROM THE COAST. THE RIDGE AND DRY AIRMASS WILL CONTINUE TO LINGER THROUGH FRIDAY. THIS WILL SET UP ANOTHER COOL AND CLEAR DAY FOR FRIDAY, BUT THE RIDGE WILL SHIFT EAST OF THE REGION BY FRIDAY EVENING.
436 PM EST THU FEB 4 2016 LOW PRESSURE NEAR THE NORTH CAROLINA COAST TONIGHT WILL BE LIFTING FARTHER NORTHEAST OF THE FORECAST AREA AS HIGH PRESSURE BUILDS INTO THE AREA FROM THE WEST. BREEZY CONDITIONS WILL OCCUR IN THE WAKE OF THE LOW TONIGHT AND FRIDAY.
BUT WILL LIKELY BE ENHANCED A BIT AS THE LOW MOVES OVER THE CENTRAL ROCKIES AND SOME LEE SIDE COLUMN STRETCHING OCCURS. CONTINUED COLD AIR ALOFT AND NRLY FLOW BEHIND THE TROUGH WILL HOLD DAYTIME HIGHS ON THE COLD SIDE OF AVERAGE. WHERE RESIDUAL SNOW WILL CONTINUE TO HOLD DOWN THE HIGHS. AND 20S FOR THE HIGH VALLEYS. AN UPPER RIDGE WILL CONTINUE TO BUILD FROM THE WEST. AND WITH PLENTY OF SUNSHINE AND GENERALLY LIGHT WINDS IT SHOULD BE A PLEASANT END TO THE WEEK DESPITE THE COOLER THAN FRI NIGHT.
308 PM CST THU FEB 4 2016 TEMPERATURES HAVE WARMED NICELY THIS AFTERNOON INTO THE LOW TO MID 40S AREAWIDE WITH EARLIER CLOUD COVER NOW MOSTLY ERODED. WITH LOWS IN THE LOW TO MID 20S.
TOWARDS THE END OF THIS TAF PERIOD A COLD FRONT IS EXPECTED TO SLIDE ACROSS THE PANHANDLES. /ISSUED 206 AM CST THU FEB 4 2016/ A RIDGE/TROUGH PATTERN ALOFT WILL PREVAIL ACROSS THE U. A COUPLE OF STRONGER SHORT WAVE TROUGHS WILL DIVE SOUTHEAST FROM THE NORTHERN ROCKIES INTO THE PLAINS.
RADAR HAS ALSO BEEN SHOWING ENHANCEMENT OVER THE HIGHER COTEAU REGION. HAVE ADJUSTED POPS TO BETTER MATCH RADAR TRENDS AND ISSUED A PRE-FIRST PERIOD ZFP TO ACCOUNT FOR THE HIGHER SNOW CHANCES PRIOR TO 12Z. ATTENTION THEN TURNS TO THE NEXT WAVE OF LOW PRESSURE TRACKING ACROSS THE AREA LATE TONIGHT THROUGH FRIDAY. THERE ARE STILL SOME MINOR TIMING ISSUES FOR THE MODELS TO IRON OUT IN REGARDS TO THE SPEED OF THE WARM FRONT PASSAGE.
1012 AM MST THU FEB 4 2016 CURRENT SATELLITE INDICATES TROUGH CURRENTLY CROSSING THE GREAT BASIN AND REACHING EASTERN UTAH AND WESTERN COLORADO THIS AFTERNOON. BEEN WATCHING CLOUD TOPS COOL THROUGHOUT THE NIGHT AS THE TROUGH APPROACHES THE SALT LAKE BASIN. SNOW RATIOS LOOK HIGH WITH THIS PASSING TROUGH - SOMEWHERE FROM 17:1 TO 20:1 ACROSS NORTHWEST COLORADO. PRECIPITATION WILL ERODE FRIDAY AS BUILDING HIGH PRESSURE ACROSS THE WESTERN US BRINGS WARMER AIR ALOFT EASTWARD.
LOW AMPLITUDE UA RIDGING WILL TRAVERSE THE REGION AS WE GO THROUGH THE DAY TODAY. WE ARE NOT EXPECTING ANY PRECIPITATION WITH THE PASSAGE OF THIS SYSTEM BUT SHOULD SEE A COLD FRONT PASSING THROUGH FRIDAY AFTERNOON BRINGING GUSTY NORTHWEST WINDS FOR LATE AFTERNOON INTO THE EVENING.
CLEAR SKIES CONTINUING WITH STRONG AND DRY HIGH PRESSURE IN PLACE. /ISSUED 1005 AM CST THU FEB 4 2016/ HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE FORECAST AREA TODAY WITH SUNNY SKIES AND COOL TEMPERATURES. STILL LOOKS LIKE A MAJORITY OF THE FORECAST AREA WILL SEE FREEZING TEMPERATURES TONIGHT. COOL HIGH PRESSURE CONTINUES TO BUILD INTO THE REGION THIS MORNING. TONIGHT WITH CLEAR SKIES, LIGHT WINDS, AND A DRY AIR MASS, TEMPS WILL TUMBLE TO FREEZING AT MOST LOCATIONS AWAY FROM THE COAST. THE RIDGE AND DRY AIRMASS WILL CONTINUE TO LINGER THROUGH FRIDAY. THIS WILL SET UP ANOTHER COOL AND CLEAR DAY FOR FRIDAY, BUT THE RIDGE WILL SHIFT EAST OF THE REGION BY FRIDAY EVENING.
AN UPPER LEVEL TROUGH WILL MOVE OVER THE AREA TONIGHT WHICH COULD BRING IN SOME CLOUDS TO NORTHEAST TENNESSEE AND SOUTHWEST VIRGINIA, BUT NO PRECIPITATION IS EXPECTED WITH THIS TROUGH. TOMORROW WILL BE ANOTHER NEAR NORMAL DAY WITH TEMPERATURES EXPECTED TO ONLY BE A FEW DEGREES COOLER THAN THEY ARE TODAY.
Underneath high pressure. Overnight conditions will help to keep low temps a little warmer compared to last night with low in the mid/upper 20s common. which will aid afternoon temperatures to be a few degrees warmer than today. These conditions could create some limited areas of fire weather danger for parts of the CWA as afternoon min relative humidities fall into the low/mid 30 percent range. a few light rain showers or even perhaps a snowflake or two might be possible as temp profiles look to be below freezing starting around 900-850-mb.
AN UPPER LEVEL TROUGH IS MOVING THROUGH THE REGION WHICH IS HELPING REINFORCE THE COOLER.
1239 PM EST THU FEB 4 2016 COOLER HIGH PRESSURE WILL SLIDE ACROSS NY AND PA THROUGH FRIDAY, THOUGH TEMPERATURES WILL REMAIN WARMER THAN NORMAL. TEMPERATURES WILL EVENTUALLY RISE INTO THE LOWER 40S IN MANY LOCATIONS THIS AFTERNOON, AS BL-925MB TEMPERATURES REMAIN UNUSUALLY MILD FOR EARLY FEBRUARY.
SUNNY AND COOL CONDITIONS ARE EXPECTED THROUGH THE DAY WITH A COLD NIGHT AS HIGH PRESSURE DOMINATES ACROSS THE MID-SOUTH. EXPECT TEMPERATURES TO BE COOLER THAN YESTERDAY WITH READINGS IN THE LOWER TO MID 40S. THE TROF WILL PUSH EAST TONIGHT ALLOWING FOR UPPER RIDGING TO OCCUR INTO FRIDAY. THIS WILL ALLOW HIGHS TO WARM BACK INTO THE LOWER 50S.
A WARM FRONT IS MOVING THROUGH THE REGION TODAY. THE PRECIPITATION WILL LINGER MAINLY IN THE AREA MOUNTAINS THIS EVENING BEFORE A RIDGE OF HIGH PRESSURE BRINGS DRY CONDITIONS TO THE AREA LATER TONIGHT AND TOMORROW MORNING.
310 PM CST THU FEB 4 2016 ANOTHER MOSTLY QUIET DAY IS IN STORE TOMORROW SANS A COLD FRONT WHICH WILL CREATE LOW END BREEZY CONDITIONS. AN UPPER LEVEL LOW CURRENTLY OVER SOUTHEASTERN UT WILL DIG SOUTHEASTWARD TONIGHT AS AN OPEN WAVE TROF. THE TROF AXIS WILL PUSH THROUGH THE REGION BY TOMORROW AFTERNOON WITH THE FRONT FOLLOWING BEHIND. LOWS TONIGHT SHOULD BE A BIT WARMER THAN THE PREVIOUS TWO NIGHTS AS LIGHT SOUTHWESTERLY WINDS RESPONDING TO A LEE TROF WILL KEEP RADIATIONAL COOLING IN ITS PLACE. ALDRICH AN UA TROUGH ACROSS WEST OF THE FOUR-CORNERS REGION LATE THIS AFTN IS PROGGED TO TRANSLATE ESE TO ACROSS THE SOUTHERN PLAINS TOMORROW AFTN/EVENING. MAJORITY OF THE SOLUTIONS MAINTAIN THE DISTURBANCE AS AN UA TROUGH.
MIDLEVEL TROUGH WILL CONTINUE TO SWING THROUGH THE CENTRAL U. A FEW LOW LYING LOCATIONS FROM COTULLA TO GEORGE WEST TO VICTORIA MAY EXPERIENCE TEMPERATURES BRIEFLY REACHING OR DIPPING BELOW FREEZING LATE TONIGHT. WIDE SPREAD FREEZING IS NOT EXPECTED.
OTHERWISE A DRY AND COOLER FORECAST FOR THE SHORT TERM. UPPER TROUGH CROSSING THE STATE AFTER 00Z TONIGHT BRINGING THE UPPER FLOW TO NORTHWEST. COMBINED WITH LOW PRESSURE OFF THE MID ATLANTIC COAST SHOULD KEEP THE WINDS GUSTY FOR MUCH OF THE AREA OVERNIGHT.
153 PM CST THU FEB 4 2016 CURRENTLY WATCHING A MID-LEVEL TROUGH AND ASSOCIATED N/S BAND OF LIGHT SNOW MOVING EAST THROUGH EASTERN MN. STILL LOOKING AT ACCUMULATIONS OF 1/2 TO PERHAPS AN INCH ON THE HIGHER END. RIDGE OF HIGH PRESSURE THEN SLIDES OVERHEAD TONIGHT FOR CLEARING AND COLD CONDITIONS.
By tonight skies will be clear and winds light as a ridge of high pressure moves through. Temperatures will tumble into the lower and middle 20s. On Friday a cold front will cross the area, but it will be very weak and starved of moisture.
WILL EXPECT WINDS TO DIMINISH HEADING INTO THE AFTERNOON AND EVENING AS THE HIGH SETTLES. MOISTURE INCREASES TONIGHT THRU FRI AS HIGH PRESSURE SHIFTS EAST.
1035 mb high pressure over central Texas was ridging into the mid MS river valley/sw IL. Aloft an upper level trof will remain over IL today and then shift east of IL by overnight. High pressure advancing into Illinois from the west will push the remainder of the low clouds into Indiana shortly after sunrise. A low pressure system approaching Wisconsin today will drag a band of clouds into northern Illinois this afternoon. As the high pressure center edges closer to IL, the pressure gradient will continue to diminish, helping to curtail the wind gusts, which will be a nice change from yesterday's blustery conditions. Broad upper trough covers a large part of the central U.
UPPER TROUGH WILL CROSS THE REGION OVERNIGHT AND INTO FRIDAY MORNING. A LIGHT DUSTING WILL BE POSSIBLE ASSOCIATED WITH A BRIEF ONE/TWO HOUR WINDOW AFTER MIDNIGHT AS THE TROUGH AXIS PASSES OVERHEAD. THE RIDGES MAY SEE UP TO A HALF INCH OR SO WITH THE INCREASED OROGRAPHIC LIFT AND LATEST FORECAST SOUNDINGS SHOW MORE OPPORTUNITY FOR SNOW GROWTH. COLDER AIR WILL PULL BACK TO THE NORTH ON FRIDAY AS RIDGING BUILDS IN OVER THE UPPER OHIO VALLEY.
Broad high pressure extended from the Rockies east into the Mid Mississippi Valley and temperatures were mainly in the teens across the area. Temperatures today should mix down from about 940mb-900mb yielding highs in the lower 30s in far north central Kansas to the mid 40s in east central Kansas. An upper level trough across the western states will move east and into the Western High Plains late tonight. Weak high pressure will move off to the east through the evening with winds relatively light through the night. Lows tonight will range from the mid teens to the lower 20s. With only limited moisture and weak lift in the low levels, precipitation chances are limited to east central Kansas Friday night.
ALONG WITH WARMER TEMPERATURES. A STRONG HIGH PRESSURE SYSTEM WILL BUILD OVER THE REGION RESULTING IN MUCH ABOVE NORMAL TEMPERATURES.
HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE MID-SOUTH OVER THE NEXT FEW DAYS WITH SUNNY AND COOL WEATHER EXPECTED. GLOBAL MODELS AGREE THAT A STRONG AND DEEP UPPER LEVEL TROUGH WILL CARVE ITSELF OUT ACROSS THE EASTERN CONUS. AS THE CENTER OF A LOW PRESSURE SETTLES OVER THE MIDSOUTH.
MODELS HAVE THIS MID/UPPER LEVEL LOW AND ASSOCIATED SURFACE FRONT MOVING INTO AND THRU SOUTHEAST TEXAS LATE FRI NITE THRU SAT MORNING.
401 PM EST THU FEB 4 2016 A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION OVERNIGHT. THE HIGH WILL MOVE EAST OF THE AREA ON FRIDAY.
THE 2ND IS PUSHING INTO THE 4 CORNERS REGION AND THIS SYSTEM WILL SEND ANOTHER REINFORCING COLD FRONT INTO THE AREA FRIDAY NIGHT. HIGHS TOMORROW WILL BE A COUPLE OF DEGREES WARMER THAN TODAY AHEAD OF THE APPROACHING COLD FRONT. THE CORRESPONDING TROUGH WILL BE PUSHING THROUGH THE AREA AS WELL PROVIDING LIFT.
A trof axis will move eastward away from the PAH forecast area today, and will be followed by ridging and high pressure at the surface for Friday.
241 PM CST THU FEB 4 2016 1033 MB high pressure over central Texas and ridging into southeast IL is providing a nice sunny afternoon to much of central and southeast IL east of the IL river. These clouds assosiated with a weak short wave trof moving into central IA. This trof will sweep eastward across central/northern IL late this afternoon and into this evening and bring this band of clouds over areas mainly along and north of I-72 into this evening. Weak upper level ridging will build across the central portion of the country on Friday bringing tranquil weather to central Illinois with afternoon temperatures forecast to be close to where they should be for the first week of February, from the mid 30s north to the lower 40s far southeast Illinois.
Despite plenty of solar insolation today temperatures will be relatively cold again, although close to seasonal normals for early February, as a deep upper level trough moves eastward through the region. Surface winds will not be strong and gusty like yesterday with surface ridging extending from the southern Plains into MO.
217 PM EST THU FEB 4 2016 A WAVE OF LOW PRESSURE RIDING UP THE EAST COAST MAY SPEAD A VERY LIGHT ACCUMULATION OF SNOW INTO SOUTHEASTERN PA TONIGHT. AN UPPER LEVEL TROUGH OVER THE GREAT LAKES WILL KEEP TEMPERATURES CLOSE TO OR SLIGHTLY ABOVE SEASONAL NORMALS FOR THE NEXT COUPLE OF DAYS. THE 150KT JET STREAK ALOFT WILL TILT TO NEARLY N-S ORIENTATION AND THE FAVORABLE RIGHT-ENTRANCE REGION OF THE STREAK SHOULD LEAD TO DEVELOPMENT OF A WAVE OF LOW PRESSURE ALONG AN OLD FRONT OFF THE EAST COAST TONIGHT. THE FLOW IS STILL OFF THE LAKE AND UPSLOPE INTO THE HIGHER ELEVS OF PA. IMPROVEMENT WILL OCCUR ON ALL FRONTS WITH THE LOW WELL OFF TO THE NE AND VORT MAX/SHORT WAVE OVERHEAD IN THE MORNING.
Associated weak cold advection will hold high temperatures Friday afternoon near Thursday's readings, with again northern zones with the deepest snowpack struggling to get to freezing.
1136 AM MST THU FEB 4 2016 THE CLOUD SHIELD WITH THE NEXT UPPER TROUGH IS GETTING INTO THE WESTERN HALF OF THE CWA RIGHT NOW. ATTENTION TURNS TOWARDS APPROACHING TROF WHICH IS NOW MOVING EAST ACROSS THE GREAT BASIN. THIS TROF WILL MOVE OVER COLORADO LATE AFTERNOON THROUGH TONIGHT WITH SOME WEAK QG ASCENT. MAINLY CLEAR SKIES THIS AM THEN INCREASING CLOUDS THIS AFTERNOON WITH APPROACHING TROF. AN UPPER TROUGH OVER EASTERN COLORADO WILL PUSH SOUTHEAST FRIDAY. HOWEVER COLDER AIR WILL HAVE SPREAD OVER THE AREA ON THE BACKSIDE OF THE TROUGH.
TODAY THROUGH FRIDAY NIGHT HIGH PRESSURE CONTINUES TO BUILD OVER THE STATE THIS MORNING. TEMPERATURES WILL BE COOLER THAN YESTERDAY. BEGINNING LATE FRIDAY AN UPPER TROUGH WILL APPROACH THE STATE FROM THE NORTHWEST. THIS TROUGH WILL INTERACT WITH A 80-100KT SUBTROPICAL JET AS IT MOVES INTO ARKANSAS FRIDAY NIGHT.
HIGH PRESSURE ACROSS THE MISSISSIPPI DELTA REGION WILL BACK THE SFC WINDS OUT OF THE SOUTH AFTER 00Z. CLOUDS WILL BEGIN TO INCREASE TONIGHT INTO FRIDAY AS A TROUGH APPROACHES FROM THE NORTHWEST. SOME LIGHT PRECIPITATION MAY DEVELOP FRIDAY EVENING AND NIGHT AS THE TROUGH MOVES ACROSS THE SOUTHERN PLAINS.
A COLD FRONT WILL DROP SOUTH ACROSS THE AREA TONIGHT AND MAY PRODUCE A FEW FLURRIES.