Aikyam-Lab/Synoptic-Bench huggingface dataset:
SOME PATCHY FOG IS ALSO EXPECTED IN AREAS OF THE WEST BUT DONT ANTICIPATE REAL DENSE SCENARIO AS WINDS PERSIST AND DEWPOINTS REMAINING BELOW FREEZING. AHEAD OF AN APPROACHING 500 MB TROUGH MOVING OVER THE ROCKIES. THE AFOREMENTIONED 500 MB TROUGH WILL THEN SWING ACROSS THE REGION BETWEEN SUNDAY NIGHT AND MONDAY NIGHT. AND JUST BELOW FREEZING OVER MUCH OF THE AREA WITH NO ICE INTRODUCTION. IF THE SATURATION REACHES A SUFFICIENT DEPTH WITH ENOUGH LIFT IN THE LAYER THEN FREEZING DRIZZLE COULD BECOME FAIRLY WIDESPREAD.
WITH TEMPERATURES WELL BELOW FREEZING AND MOISTURE NOT DEEP ENOUGH FOR ICE INTRODUCTION. HAVE SEEN FREEZING DRIZZLE. MOISTURE WILL BEGIN TO DIMINISH IN THE LOWEST LAYERS. SOME FOG AND LIKELY FREEZING DRIZZLE. MOISTURE TRANSPORT AND CONVERGENCE INTO IA AND THIS ALSO FITS A TYPICAL CONCEPTUAL MODEL BEING AHEAD OF THE INVERTED TROUGH. THUS HAVE INCREASING CHANCES FOR FREEZING DRIZZLE INTO THE EARLY MORNING HOURS AREA WIDE. TEMPS AND DEWPOINTS SHOULD RISE SUFFICIENTLY SOUTH HALF TO KEEP ANYTHING FROM FREEZING THERE BY MIDDAY. PRECIP WILL EVENTUALLY TRANSITION TO SNOW AS LIFT SATURATES MID LEVELS WITH TIME AHEAD OF INVERTED TROUGH. THIS WILL RESULT IN UP TO AN INCH OF SNOW WITH THE GREATEST TRAVEL IMPACTS NORTH WHERE TEMPS MAY STAY AT OR JUST BELOW FREEZING.
COLD FRONT HAS MOVED THROUGH THE FORECAST AREA WITH STRATUS DROPPING SOUTH AND LOWERING. COLD FRONT AND ASSOCIATED LOWER STRATUS IS DROPPING SOUTHEAST ACROSS THE FORECAST AREA. STRONG PRESSURE RISES BEHIND THE COLD FRONT. COOLER TEMPERATURES AND LIGHT SNOW ON SUNDAY BEHIND A COLD FRONT HIGHLIGHT THE SHORT TERM FORECAST. THE SURFACE COLD FRONT ACROSS SOUTHERN CANADA WAS JUST ENTERING NORTHWEST NORTH DAKOTA. A COOLER POST FRONTAL SUNDAY IS EXPECTED AREA WIDE WITH HIGHS GENERALLY IN THE 20S.
108 AM EST SUN JAN 24 2016 DEEP LOW PRESSURE WILL DRIFT EAST FROM THE MOUTH OF THE CHESAPEAKE BAY OVERNIGHT. HIGH PRESSURE WILL RETURN EARLY IN THE NEW WEEK.
WINDS WILL REMAIN AROUND 15 KTS OVERNIGHT WHILE BECOMING INCREASINGLY SOUTHWESTERLY IN ADVANCE OF AN APPROACHING COLD FRONT. /ISSUED 324 PM CST SAT JAN 23 2016/ THE LOW CLOUDS THAT MOVED INTO NORTH CENTRAL TEXAS BEFORE DAYBREAK TODAY FINALLY DISSIPATED AROUND MIDDAY. SOUTHERLY WINDS WILL INCREASE TO 15 TO 25 MPH BY LATE MORNING SUNDAY AS A LEE SIDE TROUGH DEEPENS. A COLD FRONT THAT CURRENTLY EXTENDS ACROSS THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO THE NORTHWESTERN PART OF THE FORECAST AREA AFTER DAYBREAK MONDAY AND AND WILL MOVE THROUGH THE SOUTHEASTERN COUNTIES DURING THE AFTERNOON. THE FRONT WILL BE MORE NOTICEABLE MONDAY NIGHT WITH LOWS IN THE LOWER 30S NORTHWEST TO AROUND 40 DEGREES SOUTHEAST.
238 AM CST SUN JAN 24 2016 Today will see warming temperatures as an upper level ridge slides across the region. Southerly winds will also help bring a warmer air mass into the Ozarks for today and tonight. Afternoon temperatures will climb into the middle to upper 40s across the area with some locations around and south of Joplin reaching into the lower 50s. A weak cold front will approach the Ozarks Monday morning and make its way through the area through the day.
111 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL MOVE IN FOR TODAY AND MONDAY.
HIGH PRESSURE ALOFT WILL MOVE OVER THE REGION OVERNIGHT FOR A DIMINISHING THREAT OF SHOWERS. DRY WEATHER WILL PREVAIL ON MONDAY UNDER HIGH PRESSURE ALOFT.
244 AM CST SUN JAN 24 2016 HIGH PRESSURE OVER THE SOUTHEASTERN STATES WILL KEEP DRY WEATHER CONDITIONS OVER THE MID SOUTH TODAY AND TONIGHT. SOUTHERLY LOW LEVEL FLOW AROUND THE WESTERN PERIPHERY OF THE HIGH WILL ALLOW FOR SLIGHTLY WARMER TEMPERATURES THIS AFTERNOON. MOISTURE WILL SLOWLY INCREASE AHEAD OF THIS SYSTEM AHEAD OF AN EASTWARD MOVING COLD FRONT. WARMER CONDITIONS CAN ALSO BE EXPECTED BY MONDAY AHEAD OF THE COLD FRONT.
THOSE TWO FACTORS WILL RESULT IN COOLER TEMPERATURES. THE INCOMING UPPER TROUGH BEGINS TRANSITIONING THE FORECAST AREA SUNDAY EVENING AND MOVES INTO THE MISSISSIPPI VALLEY REGION BY LATE MONDAY AFTERNOON. ADDITIONAL SHORT WAVE TROUGHS WILL BE MOVING THROUGH THE AMPLIFYING UPPER FLOW PATTERN. BUT WITH HIGH PRESSURE AT THE SURFACE. TEMPERATURES THROUGH THE WEEK WILL GRADUALLY WARM AS THE HIGH AMPLITUDE NORTHWEST FLOW BEGINS TO FLATTEN WITH THE UPPER RIDGE OVER THE WESTERN U.
225 AM MST SUN JAN 24 2016 A WEAK LOW PRESSURE SYSTEM AND COLD FRONT WILL MOVE THROUGH THE REGION TODAY WITH LITTLE FANFARE. A PROGRESSIVE FULL LATITUDINAL TROUGH AND ASSOCIATED WEAKENING FRONTAL BOUNDARY WERE MOVING THROUGH THE FORECAST AREA EARLY THIS MORNING AS THE CONUS FLOW PATTERN UNDERGOES A SLIGHT REALIGNMENT. TEMPERATURES THIS AFTERNOON WILL BE NOTICEABLY COOLER THAN THE PAST SEVERAL DAYS DESPITE FULL INSOLATION.
SOUTHEAST WINDS WILL BRING IN SLIGHTLY HIGHER MOISTURE WITH DEWPOINT TEMPS IN THE LOWER 40S INTO THE SOUTHERN COASTAL BEND AT THIS TIME. SOUTHERLY LOW LEVEL FLOW WILL INCREASE ON SUNDAY AS LOW PRESSURE DEEPENS OVER THE SOUTHERN HIGH PLAINS.
432 AM EST SUN JAN 24 2016 CURRENTLY - A LARGE LOW PRESSURE SYSTEM CONTINUES TO SLIDE NORTHEASTWARD ALONG THE MID AND NORTHEAST ATLANTIC COAST. WHILE A LOOSE HIGH PRESSURE SYSTEM IS SHIFTING EASTWARD THROUGH THE SOUTHEASTERN UNITED STATES. SKIES ARE CLEARING WITH MORE OF THE AIR COMING IN OFF OF FLORIDA AND THE COOLER SHELF WATERS. THE COOL FLOW AND NEARSHORE BAY AND GULF SIDE WATERS IN THE LOW TO MID 60S WILL KEEP DAY TIME HIGHS WELL BELOW NORMAL IN THE MID 60S.
A "quick-look" at rotational velocities revealed a Vr around 40 kts and given the distance from KBBX radar at least a high-end moderate mesocyclone off of the Mesocyclone Recognition Nomogram chart from Andra (1997), but further scrutiny might reveal an even stronger Vr value. Still a few lingering showers in the wake of the upper trof axis that should be on the wane later in the evening.
329 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL SHIFT TO THE EAST COAST ON MONDAY AS A WEAK LOW PRESSURE SYSTEM ADVANCES OUT OF THE CENTRAL PLAINS. INCREASING MIXING TONIGHT WILL YIELD MUCH WARMER MINS AND CONTD DRY AS RTN MSTR TONGUE AHD OF PLAINS LOW HOLDS WELL WEST OF THE AREA. INCREASINGLY SHEARED AND RAPIDLY DAMPENING MID/UPPER LEVEL TROUGH WILL LIFT ACROSS THE REGION LATE MONDAY. THERE WILL HOWEVER BE A DECENT THETA-E SURGE AHEAD OF THE ASSOCIATED COLD FRONT WITH MODEST 285-290K ISENTROPIC ASCENT AND MIXING RATIOS CLIMBING ABOVE 4 G/KG AT THAT LEVEL. COULD BE A VERY BRIEF PERIOD OF FREEZING/FROZEN PRECIP RIGHT AT THE ONSET BEFORE BECOMING ALL RAIN BY MONDAY EVENING.
1142 PM CST SAT JAN 23 2016 A WEAK PACIFIC COLD FRONT CROSSED THE AREA THIS MORNING. AS SOME BREAKS IN THE HIGH OVERCAST AND LIGHT WEST WINDS WILL ALLOW TEMPERATURES TO DROP. THE NAM MODEL HINTING AT A WEAK BACKDOOR COLD FRONT PUSHING TO NEAR A VALENTINE TO BROKEN BOW LINE DURING THE AFTERNOON. NAM HAS COME IN MORE AGGRESSIVE WITH CLOSING UPPER LOW OFF OVER CENTRAL AND EASTERN NEBRASKA WITH AN ENHANCED BAND OF PRECIPITATION IN THE DEFORMATION ZONE. BUFKIT SOUNDINGS HAS A PERIOD OF MID LEVEL WARM AIR ALOFT EARLY WITH TEMPERATURES FALLING BELOW FREEZING AT THE SURFACE INDICATING A BRIEF PERIOD OF FREEZING PRECIPITATION TO THE NORTHWEST BUT HAVE LEFT OUT OF THE FORECAST FOR NOW.
1240 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL REMAIN OVER THE GREAT LAKES AND OHIO VALLEY AREA TONIGHT AS THE EAST COAST BLIZZARD WINDS DOWN. HIGHS ON SUNDAY WILL BE IN THE LOWER TO MIDDLE 30S. UPSTREAM AIRCRAFT SOUNDINGS OVER SOUTHEAST LOWER MICHIGAN INDICATED A SUBSTANTIAL DRYING OUT OF THE LOWER LAYERS. TEMPERATURES SHOULD BE A LITTLE WARMER WITH HIGHS NEAR 35 AS WARM AIR ADVECTION INCREASES AHEAD OF THE NEXT SYSTEM. MID LEVEL SHORT WAVE RIDGE TO PASS ACROSS THE REGION SUNDAY NIGHT WHILE LOW LEVEL WARM AIR ADVECTION DEVELOPS ALONG WITH INCREASING SFC GRADIENT.
TEMPERATURES WILL TREND DOWNWARD TOMORROW AND MONDAY AS AN UPPER LEVEL DISTURBANCE AND SURFACE COLD FRONT MOVE ACROSS THE AREA. WITH THE HIGHEST SNOW ACCUMULATIONS OVER THE SNOWY AND SIERRA MADRE RANGES. TEMPERATURES ACROSS MOST OF THE FORECAST AREA WILL REMAIN BELOW FREEZING MONDAY AS COLD CANADIAN AIR REMAINS IN PLACE AND CLOUD COVER INHIBITS WARMING.
423 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH MONDAY. HIGH PRESSURE AND RIDGING ALOFT WILL ALLOW FOR A QUIET WEATHER DAY.
WINDS WILL BECOME LIGHT ACROSS THE CWA OVERNIGHT AS TEMPS DROP INTO THE LOWER 20S/UPPER TEENS. WITH MOSTLY CLR SKIES AND LIGHT WINDS THERE MAY BE SOME PATCHY FREEZING FOG BUT OOZ U/A SOUNDINGS FROM OHX/BMX SHOWS THAT THE BOUNDARY LAYER IS FAIRLY DRY. THUS NOT EXPECTING ANY WIDESPREAD/DENSE FREEZING FOG OR ANY TRAVEL PROBLEMS ATTM. HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE TN VALLEY OVERNIGHT AND SUNDAY WITH VFR CONDITIONS THRU THE FCST PERIOD.
FREEZING TEMPERATURES AND LOW WIND CHILLS THROUGH MID-MORNING. ALOFT - RIDGING REACHED FROM MEXICO TO THE NORTHERN PLAINS. A SHORT WAVE TROUGH WAS OVER THE UPPER GREAT LAKES. AND A LOW SOUTH AND SE OF NANTUCKET ISLAND TROUGHED SOUTH OVER ATLANTIC WATERS. SURFACE - HIGH PRESSURE CENTERED OVER THE LOWER MISSISSIPPI VALLEY SPRAWLED ACROSS THE GULF OF MEXICO AND NORTH TO THE LOWER GREAT LAKES. A SURFACE REFLECTION OF THE UPPER LOW WAS SOUTHEAST OF NANTUCKET. THE HIGH SURF INTO MID-MORNING AND THE RIP CURRENT RISK INTO MID-AFTERNOON. TEMPERATURES ACROSS THE NORTH HAVE JUST HIT FREEZING WITH THE WARNING ON TRACK. WITH PARTS OF THE NATURE COAST EXPECTED TO APPROACH BUT NOT REACH FREEZING.
The amplitude of this ua trough will be such that strong winds will rake portions of the area, and be fairly stout over much of the rest of the region. Since the latest crop of models are in good agreement bringing 50+ kt h7 winds over northwestern reaches of the forecast area, will go ahead and upgrade the High Wind Watch in the Guadalupe Mountains to a High Wind Warning for sustained westerly winds of 40 to 50 mph and gusts near 70 mph. The ua trough will move east of the region Sunday night with a cold front dropping south into the area Monday in its wake.
448 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL MOVE IN FOR TODAY AND MONDAY.
PATCHY FREEZING FOG FORMING W OF PLATEAU REGION IN A FEW LOW LYING SELECTED LOCATIONS. ALSO TWEAKED SKY CONDITIONS ON SUN TO MAKE ALL AREAS PTCLDY AS CONTINUED PASSAGES OF SCT/BKN CI OVER TOP OF UPPER LEVEL RIDGING INFLUENCES CONTINUE TO OCCUR. PATCHY FREEZING FOG WITH STRATUS WILL BE THE MAIN FORECAST PROBLEM FOR THIS TAF CYCLE.
414 AM EST SUN JAN 24 2016 HIGH PRESSURE BUILDS IN TODAY AND SHIFTS OFFSHORE MONDAY NIGHT.
High pressure at the surface and rising heights aloft should keep the region dry through Sunday night. Precipitation chances make their way back into the forecast starting Monday as a system lifting northeast out of the central plains pulls a cold front across the area. In the last 2-3 hours of the Monday night period, as temperatures drop below freezing, freezing drizzle is a possibility over the northeast sections.
919 PM MST SAT JAN 23 2016 THE NEXT TROUGH WAS ONSHORE THIS AFTERNOON AND WILL TRACK W-E ACROSS THE REGION ON SUNDAY. THE COLD FRONT SHIFTS AND WEAKENS INTO THE EASTERN FORECAST AREA THROUGH THE DAY SO THE CENTRAL CO MTN ADVISORIES BEGIN AT NOON. OTHER ZONES THAT MAY GET CLOSE TO ADVISORY SNOW CRITERIA INCLUDE THE EASTERN UTAH MTNS AND THE LOWER YAMPA RIVER BASIN. MONDAY WILL BE 5 TO 10 DEGREES COOLER THAN SUNDAY.
HIGH PRESSURE WILL BUILD INTO THE REGION FROM THE WEST IN THE WAKE OF A POWERFUL MID LATITUDE CYCLONE TRACKING EASTWARD INTO THE ATLANTIC. WINTER WEATHER ADVISORY FOR BLACK ICE REMAINS IN EFFECT UNTIL EXPECT A CLEARING TREND THROUGH 12-15Z TODAY AS SUBSIDENCE ENVELOPS THE REGION IN THE WAKE OF A POWERFUL MID-LATITUDE CYCLONE PROGRESSING FURTHER OFFSHORE INTO THE ATLANTIC. EXPECT WARMER TEMPERATURES TODAY IN ASSOC/W INSOLATION. RANGING FROM THE LOWER/MID 30S NORTH TO UPPER 30S /PERHAPS 40/ IN THE FAR SOUTH WHERE THE LEAST AMOUNT OF WINTRY PRECIPITATION OCCURRED. OVERNIGHT LOWS SHOULD STAY MOSTLY ABOVE FREEZING AS CLOUDS BEGIN TO SLOWLY INCREASE AHEAD OF AN APPROACHING FRONT AND WINDS STAY UP A LITTLE ALSO. AHEAD OF THE COLD FRONT.
AHEAD OF THE NEXT UPPER LEVEL LOW PRESSURE TROUGH. AND INTO THE 30S AND 40S FOR THE HIGHER ELEVATIONS. THE UPPER TROUGH AXIS SLIDES EAST INTO THE GREAT BASIN TONIGHT. THE TROUGH AXIS CONTINUES EAST AND CROSSES INTO COLORADO TOMORROW MORNING. LOOKS LIKE THE HIGHER ELEVATIONS OF LAKE COUNTY WILL SEE THE HIGHEST AMOUNTS. A WEAKER 2NDRY SYSTEM WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND BRING A CHANCE OF PRECIP TO THE MAINLY THE HIGHER ELEVATIONS. TRANSIENT SHORT WAVE TROUGH WILL MOVE ACROSS THE REGION SUNDAY EVENING. THE BEST CHANCE OF PRECIP FOR THE LOWER ELEVATIONS WILL BE THE I-25 CORRIDOR REGION. GUIDANCE IS INDICATING A CHANGE IN THE PATTERN IS LIKELY TO OCCUR ACROSS THE WESTERN CONUS AS A LARGE TROUGH IS FCST TO DEVELOP OVER THE WEST.
AND SOME FREEZING FOG HAS POPPED UP ACROSS THE AREA AS WELL. TEMPERATURES SHOULD CLIMB ABOVE FREEZING TODAY AND HELP MELT A BIT MORE SNOW AS RIDGING BUILDS IN BEHIND THE STRONG UPPER LOW.
ANOTHER WARM DAY IS IN STORE ON MONDAY AHEAD OF THE NEXT COLD FRONT.
357 AM EST SUN JAN 24 2016 MODELS ALL IN GOOD AGREEMENT WITH A SHORT WAVE RIDGE BUILDING OVER THE CWA TODAY. THIS WILL SHIFT TO OUR EAST AS THE NEXT TROUGH STARTS DIGGING INTO THE SOUTHERN PLAINS.
LEADING TO DRIZZLE/FREEZING DRIZZLE IF PRECIPITATION WOULD BE PRODUCED. IT EVENTUALLY DEEPENS ENOUGH FOR ICE AS THE LOW MOVES IN NEAR 00Z TUE. SEE THE MOST LIKELY SCENARIO BEING DRIZZLE/FREEZING DRIZZLE DEVELOPING-MOVING NORTHEAST ACROSS THE AREA MONDAY MORNING. MAIN DEFORMATION BAND WITH THE LOW MIGHT STAY JUST NORTHWEST OF THE FORECAST AREA. DEPENDING ON HOW WIDESPREAD THE FREEZING DRIZZLE COULD BE. AFTER THE EARLY WEEK TROUGH. MODELS FAVORING BROAD UPPER LEVEL RIDGE BUILDING. WITH THE EC A BIT WARMER COMPARED TO THE GFS.
235 AM EST SUN JAN 24 2016 DRY HIGH PRESSURE WILL BUILD INTO THE REGION THROUGH MONDAY. AN APPROACHING COLD FRONT WILL BRING A CHANCE OF SHOWERS FOR MID WEEK WHICH MAY STALL ALONG THE COAST AND KEEP WEATHER UNSETTLED THROUGH THE END OF THE WEEK. HIGH PRESSURE BUILDING OVER THE AREA TODAY AND SURFACE PRESSURE GRADIENT WEAKER. AIR MASS QUITE DRY BUT A FEW HIGH CLOUDS POSSIBLE ASSOCIATED WITH FAST MOVING SHORT WAVE TROUGHS. STRONG RADIATIONAL COOLING POSSIBLE TONIGHT ALTHOUGH RIDGE AXIS ALONG THE COAST. UPPER RIDGE ALONG THE EAST COAST MONDAY WITH AREA IN WARM ADVECTION DURING THE AFTERNOON.
WITH LIGHT SURFACE WINDS AND TEMPS RANGING IN THE MID 20S THRU THE LOW 30S. BUT DOES CONTINUE TO SHOW EXPECTED QPF TO OCCUR OVERNIGHT INTO MONDAY MORNING WITH THE 500/700 MB TROUGHS THAT SWING THRU THE AREA WITH A TRACK FROM NW KANSAS INTO SOUTH CENTRAL NEBRASKA. MODEL 850/700 MB FRONTOGENESIS DOES SHOW PEAK ACROSS THE AREA BETWEEN 00Z-12Z MONDAY ASSOCIATED WITH TROUGH PASSAGE BUT MAINLY ON THE WEST SIDE OF THE SYSTEM AIDED BY CAA. THE LIFT/DYNAMICS WITH THE PASSAGE OF THE TROUGH/S DOES SUPPORT SOME PRECIP FOR THE AREA. WITH HIGHEST POTENTIAL TOTALS ALONG THE NORTHERN SECTIONS OF THE CWA WHICH ARE CLOSEST TO THE EFFECTS OF THE TROUGH/S.
328 AM CST SUN JAN 24 2016 WX MAP SHOWS 1025MB HIGH PRESSURE RIDGE OVER LA/MS. TEMPS IN THE LOWER/MID 30S. HIGH PRESSURE EXPECTED TO SLOWLY RETREAT EAST WITH A SE RETURN FLOW RESUMING ACROSS SE TX. THE LOW IS EXPECTED TO BE MUCH WEAKER AND REMAIN WELL NORTH OF THE REGION. MUCH WARMER LOWS EXPECTED MON MORNING. IN THE LOWER 40S C LA TO THE UPPER 50S SE TX. COOLER TEMPS EXPECTED BY TUE AFTERNOON. WITH CLEARING BY WED AS THE HIGH WITH COOLER AND DRIER AIR FILTERS ACROSS THE REGION. DML WINDS WILL GRADUALLY SHIFT EAST THEN SOUTHEAST TODAY AS HIGH PRESSURE MOVES EAST OF THE AREA. WINDS WILL DIMINISH BRIEFLY AHEAD OF A COLD FRONT MONDAY NIGHT.
COLD FRONT HAS PUSHED THROUGH GRAND FORKS AND NW SFC WINDS EXTENDING FROM DEVILS LAKE BASIN THROUGH THE NORTHERN VALLEY AND INTO SOUTHERN LAKE OF THE WINDS COUNTY. THE SUN AND WARMER TEMPS WILL BE SHORT LIVED AS THE WINDS ARE ALREADY SWITCHING TO THE NORTHWEST ACROSS NORTHWEST ND.
1253 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL REMAIN ANCHORED ACROSS NORTHERN NEW ENGLAND THROUGH THE REST OF THIS WEEKEND AS A STRONG STORM SYSTEM PASSES SOUTH OF THE REGION. A WEAK TROUGH WILL MOVE INTO THE REGION SUNDAY NIGHT WITH A FEW SNOW SHOWERS EXPECTED IN THE MOUNTAINS.
1251 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL REMAIN IN CONTROL FOR THE REMAINDER OF THE WEEKEND, CONTINUING THE CURRENT BENIGN CONDITIONS.
temps have been slow to warm with many locations still remaining in the lower to middle 20s. Latest trends suggest low cloud cover will finally begin to dissipate late tomorrow morning/afternoon as subsidence increases over the region with arriving upper ridge axis. conditions will remain dry through the evening hrs with high temps topping out in the lower to middle 40s across most locations. a light freezing rain/drizzle possibility still exists across northwestern MO/northeastern Kansas as these areas will have the hardest time warming above freezing during the day.
THE UPPER LEVEL RIDGE IS SLOW TO BUILD AND THERE REMAINS A THREAT OF PRECIPITATION IN THE NORTHERLY FLOW BEHIND THESE TWO STORMS IN UPSLOPE-ENHANCED AREAS FOR MON AND MON NIGHT. THE UPPER LEVEL RIDGE IS OVERHEAD.
88 DRY ON SUNDAY WITH LESS WIND AND WARMER TEMPERATURES.
LOW TO NEAR CALM WINDS, CLEAR SKIES AND HIGH PRESSURE BUILDING INTO THE SOUTHEAST. IF DEW POINTS DO DIP TO THE LOWER TO MID 30'S AS CURRENTLY FORECAST AND THE TEMPERATURES DECREASE A FEW DEGREES LOWER THAN FORECAST THEN THE POTENTIAL FOR FROST COULD BE GREATER.
/ISSUED 630 PM EST SAT JAN 23 2016/ A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR FAR NORTH GEORGIA ESPECIALLY IN THE HIGHER ELEVATIONS WHERE THE GREATER AMOUNTS OF SNOW AND ICE OCCURRED AND TEMPERATURES HAVE REMAINED BELOW FREEZING.
LOW CLOUDS MOVING SOUTH ALONG A COLD FRONT IN ND WILL ENCOMPASS ALL OF THE REGION BY MORNING AS WINDS BECOME NORTH. A SERIES OF WEAK WAVES WILL CROSS THE REGION SUNDAY AND MONDAY EMBEDDED WITHIN A WEAK UPPER TROF. BECAUSE OMEGA VALUES ARE STILL ON THE LOW END. NORTHWEST FLOW ON THE EAST SIDE OF AN UPPER RIDGE WILL SIT OVER THE NORTHERN PLAINS UNTIL THE END OF THE WORK WEEK WHEN THE UPPER PATTERN FLATTENS A BIT.
1131 PM EST SAT JAN 23 2016 LOW PRESSURE WAS LOCATED OFF THE MIDDLE ATLANTIC COAST LATE THIS AFTERNOON AND WILL CONTINUE TO DRIFT SLOWLY EASTWARD. HIGH PRESSURE WILL RIDGE INTO THE REGION OVERNIGHT AND REMAIN IN CONTROL INTO EARLY MONDAY.
KEPT IN MENTION OF LIGHT SNOW AND FREEZING DRIZZLE POSSIBILITIES IN THE KEWEENAW AND EASTERN CWA TODAY AND OVERALL. AFTER THE LOW PRESSURE MOVES ACROSS THE UPPER GREAT LAKES MON NIGHT INTO TUE. A WEAK STATIONARY FRONT OVER THE REGION SUN NIGHT WILL SLOWLY RETURN NWD AS A WARM FRONT INTO MONDAY AS LOW PRESSURE DEVELOPS OVER THE SRN PLAINS. HAVE OPTED TO GO DRY FOR THE FORECAST ACROSS THE AREA UNTIL MONDAY MORNING WHEN BETTER FORCING ASSOCIATED WITH THE UPPER TROUGH AND HEIGHT FALLS MOVE INTO THE REGION. CANNOT RULE OUT FREEZING DRIZZLE ON MONDAY WITH THE FAIRLY DEEP CLOUD LAYER STAYING ABOVE -6C ALONG WITH THE WEAK ISENTROPIC LIFT. LOW PRESSURE MOVES THROUGH THE NORTHERN LAKES MON NIGHT INTO TUE MORNING. THE LOW TRACK GENERALLY MOVES FROM CENTRAL WI TO NORTHERN LOWER MI.
1237 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH MONDAY. MODELS CONTINUE TO INSIST ON SATURATING THE LOWEST LEVELS OF THE ATMOSPHERE OVERNIGHT. HIGH PRESSURE AND RIDGING ALOFT WILL ALLOW FOR A QUIET WEATHER DAY.
305 AM EST SUN JAN 24 2016 HIGH PRESSURE WILL REMAIN ANCHORED ACROSS NORTHERN NEW ENGLAND TODAY AS A STRONG STORM SYSTEM MOVES SOUTH OF NOVA SCOTIA. A WEAK TROUGH WILL MOVE INTO THE REGION LATE SUNDAY NIGHT WITH AN ISOLATED SNOW SHOWER POSSIBLE IN THE MOUNTAINS.
349 AM CST SUN JAN 24 2016 HIGH PRESSURE WILL SHIFT ACROSS THE REGION TODAY AS THE MID LEVEL RIDGE AXIS CROSSES THE MISSISSIPPI RIVER. CENTRAL ALABAMA WILL GENERALLY BE 10 DEGREES WARMER THAN YESTERDAY WITH HIGHS IN THE MID 40S TO LOWER 50S. LOWS WILL DROP TO AROUND FREEZING FOR MUCH OF THE AREA.
/ISSUED 917 PM CST SAT JAN 23 2016/ HIGH PRESSURE HAS SETTLED OVER THE MIDSOUTH THIS EVENING. PLACING WINDCHILL VALUES AT OR BELOW FREEZING AREAWIDE. HIGH PRESSURE WILL BECOME NEARLY CENTERED OVER THE MID-SOUTH OVERNIGHT. WITH SLIGHTLY COOLER READINGS OVER THE SNOWPACK AREA OF WEST TENNESSEE. HIGH PRESSURE WILL SLIDE EAST EARLY ON SUNDAY AND SOUTHERLY WINDS WILL HELP USHER IN A MORE SEASONAL AIRMASS.
PATCHY FREEZING FOG MAY OCCUR IN THE NORTHERN PLATEAU AREA WHERE CLOUDS HAVE CLEARED OUT. WITH MOSTLY SUNNY SKIES EVERYWHERE HELPING TEMPERATURES RISE INTO THE LOWER 40S SOUTH TO UPPER 30S CENTRAL. WILL UNDERCUT MOS TEMPS AND HAVE HIGHS IN THE LOWER/MID 30S. FREEZING FOG COULD BE AN ISSUE FOR AREAS WITH LINGERING SNOW COVER TONIGHT.
/ISSUED 301 PM CDT FRI JUL 31 2015/ WITH THE RIDGE OFF TO THE WEST. UNTIL THE RIDGE MOVES BACK OVER US. AS THE RIDGE SHIFTS EASTWARD.
739 PM EDT FRI JUL 31 2015 A WEAK COLD FRONT WILL CROSS THE AREA SATURDAY. WEAK LOW PRESSURE ALOFT.
WEAK COLD FRONT HAS SETTLED ACROSS FAR SOUTHERN IOWA.
CHATTANOOGA AIRPORT, TN 67 92 68 92 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 64 90 65 89 / 0 0 0 10 OAK RIDGE, TN 64 90 65 89 / 0 0 0 10 TRI CITIES AIRPORT, TN 59 87 59 86 / 0 0 10 10.
750 PM EDT FRI JUL 31 2015 A STALLED FRONTAL BOUNDARY WILL KEEP THE HIGHEST CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE SOUTHEAST MIDLANDS THROUGH THE WEEKEND. UPPER RIDGE OUT WEST WITH BROADEN TROUGH FROM THE GREAT LAKES TO THE EAST COAST. HAVE FORECAST SLIGHTLY COOLER OVERNIGHT TEMPERATURES IN THE LOW TO MID 70S.
IN THE LOW TO MID LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS THE FLORIDA KEYS OVERNIGHT. AN AREA OF LOW PRESSURE WILL BE CENTERED OVER THE EASTERN BAHAMAS TONIGHT.
BROAD HIGH PRESSURE IN PRESSURE IN PLACE OVER THE CENTRAL PLAINS WILL REESTABLISH ITSELF OVER THE OHIO VALLEY.
921 PM CDT FRI JUL 31 2015 HIGH PRESSURE REMAINS OVER THE MIDSOUTH THIS EVENING. WITH SLIGHTLY COOLER THAN NORMAL DEWPOINTS.
803 PM CDT FRI JUL 31 2015 THE MID LEVEL RIDGE WAS CENTERED OVER WESTERN TX. DRIER AIR MIXED DOWN TO THE SURFACE OVER IN WESTERN AR TODAY BENEATH THE RIDGE. STORMS THAT DEVELOPED IN THE TX PANHANDLE AND WESTERN OK IN THE LOW LVL THETAE AXIS DIED IN CENTRAL OK. HIGH PRESSURE ALOFT WILL REMAIN THE DOMINANT PLAYER IN OUR WEATHER OVER THE NEXT 7 DAYS.
WITH BEST CHANCES EAST OF PHP-IEN ALONG A THETA-E RIDGE THROUGH EARLY MORNING.
ALONG WITH A MODEST RIDGE VALLEY TEMPERATURE SPLIT ACROSS THE AREA. SKIES WILL REMAIN CLEAR OVERNIGHT ALLOWING TEMPERATURES TO ONCE AGAIN DIP INTO THE UPPER 50S IN THE VALLEYS AND LOWER 60S ON THE RIDGES.
MID-UPPER RIDGE WILL REMAIN ACROSS THE SOUTHERN ROCKIES/SOUTHERN PLAINS DURING THE PERIOD. ONE ACROSS THE LOWER MISSOURI VALLEY WHERE A FRONTAL BOUNDARY WILL BE OSCILLATING NORTH AND SOUTH.
631 PM CDT FRI JUL 31 2015 A 500MB RIDGE OF HIGH PRESSURE EXTENDS FROM OREGON TO LOUISIANA LATE THIS AFTERNOON AND WILL REMAIN IN PLACE THROUGH THIS FORECAST WITH GENERALLY HOT AND DRY CONDITIONS CONTINUING ACROSS THE REGION THROUGH THE WEEKEND. /ISSUED 319 PM CDT FRI JUL 31 2015/ TEMPERATURES THIS AFTERNOON ARE RUNNING A FEW DEGREES COOLER BEHIND THE WEAK COLD FRONT THAT MOVED THROUGH LAST NIGHT. BUT THE LOWER HUMIDITY WILL MAKE FOR MORE TOLERABLE CONDITIONS. AND WHILE THE LOW LEVEL AIRMASS MAY BE DRY AND STABLE.
BEHIND THE FRONT TEMPS WERE SOMEWHAT COOLER BUT DEW POINTS DROPPED FROM THE 70S INTO THE LOWER 60S.
QUIET WEATHER PATTERN THIS EVENING AS HIGH PRESSURE REMAINS SITUATED OVER THE FORECAST AREA. A BLEND WAS USED FOR MOST FIELDS WITH HIGHER WEIGHT GIVEN TO THE WARMER EDGE OF SOLUTIONS FOR HIGHS ON SATURDAY GIVEN VERIFICATION.
VFR THROUGH THE NEXT 24 HOURS UNDER HIGH PRESSURE. HOWEVER, THE CUMBERLAND PLATEAU WAS ENJOYING SOMEWHAT MORE PLEASANT TEMPERATURES IN THE LOWER TO MIDDLE 80S. AS PREVIOUSLY ADVERTISED, HIGH PRESSURE REMAINS IN PLACE OVER THE MID STATE THROUGHOUT THE WEEKEND, WITH DRY, BUT SEASONABLY HOT, AFTERNOONS, AND PLEASANTLY COOL TEMPS OVERNIGHT.