Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE HRRR AND THE SREF BOTH HAVE THE LOWEST VISIBILITIES IN THE WEST. THE MAIN DIFFERENCE SEEMS TO BE THE MODELS THAT BRING THE LOWEST VISIBILITIES ALSO HAVE EASTERLY WINDS AND THE CURRENT WINDS ARE MORE NORTH. TEMPERATURES WILL BE A LITTLE COOLER TODAY THAN YESTERDAY. ANOTHER WEAK COLD FRONT WILL MOVE THROUGH THE FORECAST AREA LATE THIS AFTERNOON AND EVENING.
TWEAKED THE MIN TEMPS DOWN A DEGREE IN THE EAST WHERE THE AIR IS A LITTLE DRIER AND LIGHTER WINDS AND COOLER START TO THE EVENING.
219 AM CST THU FEB 11 2016 SOUTHWEST WINDS AVERAGING BETWEEN 5 TO 10 MPH ONGOING ACROSS THE REGION AT THIS TIME WITH TEMPERATURES IN THE LOW TO MID 50S. A COLD FRONT ACROSS EASTERN OKLAHOMA INTO CENTRAL ARKANSAS TO SHIFT SOUTH AND EAST INTO THE INTERSTATE 20 CORRIDOR THROUGH LATE MORNING. TEMPERATURES SOUTH OF THE COLD FRONT TO CLIMB INTO THE MID TO UPPER 70S WHILE POINTS NORTH OF THE FRONT TO LINGER IN THE MID 60S. LOW TEMPERATURES OVERNIGHT TO RANGE FROM THE LOW TO MID 30S ACROSS THE INTERSTATE 30 CORRIDOR TO AROUND 50 ACROSS PORTIONS OF DEEP EAST TEXAS.
WITH BELOW FREEZING TEMPS OVERNIGHT WILL LIKELY NEED THE SPS TO CONTINUE AS ROADS SHOULD REMAIN SLICK IN AREAS THROUGH THE NIGHT. TEMPS SHOULD WARM UP ABOVE FREEZING TOMORROW AND HELP IMPROVE ROAD CONDITIONS ACROSS THE MID STATE. HIGH PRESSURE WILL SLIDE SE TOWARD MIDDLE TN LEADING TO GOOD FLYING CONDITIONS AT ALL THREE TERMINALS.
VFR CONDITIONS WILL CONTINUE ACROSS THE AREA THROUGH THE NEXT 24 HOURS AS A 500MB RIDGE ACROSS THE WESTERN UNITED STATES AND 500MB TROUGH ACROSS THE EASTERN U.
HIGHS TODAY WILL BE A FEW DEGREES WARMER THAN YESTERDAY BUT STILL SHOWING A BIG GRADIENT FROM THE COLDER NORTHEAST TO THE SOUTHWEST WHICH SHOULD APPROACH 20 THIS AFTERNOON. NORTHWEST FLOW ALOFT CONTINUES BUT THE MAIN UPPER LOW TO THE EAST DIGS DOWN THROUGH ONTARIO. WHICH WILL HELP PUSH AN ARCTIC HIGH PRESSURE CENTER DOWN INTO THE REGION. BUT A DECENT PRESSURE GRADIENT ON THE FRONT END OF THE HIGH WINDS WILL MAKE IT SEEM EVEN COLDER.
THE POPULATED FORECAST HAD GIVEN A SLIGHT CHANCE FOR LIGHT FREEZING RAIN IN THE FAR SOUTHWEST THURSDAY NIGHT. IT IS POSSIBLE FOR LIGHT FREEZING RAIN TO DEVELOP IN THE SUPERCOOLED WATER DROPLET REGIME GIVEN THE AMOUNT OF OMEGA PRESENT.
926 PM PST WED FEB 10 2016 High pressure weakens over the next couple of days, allowing for increasing precipitation chances. A warm front Thursday, followed by a cold front passage Friday, will produce light valley rain and high mountain snow across much of the region.
COURTESY OF THE PASSAGE OF A COLD FRONT. THE ARRIVAL OF A MODEST COLD FRONT BY SUNRISE WILL SHIFT WINDS AROUND TO THE NORTH. COLD ADVECTION BEHIND THE FRONT AND A MINOR DECREASE IN UPPER HEIGHTS POINT TO HIGH TEMPS ABOUT 10 DEGREES COOLER THAN TODAY. THIS PUTS THINGS ON THE WARMER END OF MOS. A LEE TROF WILL SHIFT WINDS TO THE SOUTHWEST EARLY FRIDAY AHEAD OF A MAINLY PASSIVE BACKDOOR FRONT WHICH WILL PUSH IN FRIDAY AFTERNOON.
IN THE RIDGES. THUS A FEW MORE INCHES WILL BE POSSIBLE IN THE RIDGES.
1115 AM CST MON NOV 23 2015 FOR 18Z TAFS /ISSUED 1004 AM CST MON NOV 23 2015/ HIGH PRESSURE IS FIRMLY IN PLACE OVER THE SOUTHEAST THIS MORNING.
BENIGN WEATHER PATTERN IN THE SHORT TERM WITH HIGH PRESSURE IN CHARGE.
353 PM EST MON NOV 23 2015 HIGH PRESSURE CENTERED OVER THE OHIO VALLEY WILL BE FORCED SOUTH AS A WEAK TROUGH MOVES ACROSS THE EASTERN LAKES THIS EVENING.
1153 AM EST MON NOV 23 2015 WEAK LOW PRESSURE WILL INCREASE CLOUD COVER TODAY AND TONIGHT. HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY WARMING TEMPERATURES THROUGH MUCH OF THE WEEK. UPPER TROUGH WILL SLOWLY MOVE EASTWARD TODAY AND TONIGHT.
AN INTENSIFYING STORM OVER WESTERN CANADA WILL BRING COOLER WEATHER TUESDAY AS IT MOVES SOUTHWARD DOWN THE WEST COAST.
HIGH PRESSURE CONTINUES TO BUILD IN FROM THE SOUTH- SOUTHWEST WHILE NORTHWEST FLOW REMAINS ALOFT. MOST LOCATIONS WILL BE 5 TO 10 DEGREES WARMER THAN LAST NIGHT BUT STILL 5 TO 8 DEGREES BELOW NORMAL. TEMPS WILL RETURN TO THE LOW TO MID 50S BY TOMORROW AFTERNOON. A LOW LEVEL RIDGE CENTERED NEAR THE OUTER BANKS WILL PRODUCE A SOUTHERLY FLOW THAT WILL BRING DRY WEATHER AND ABOVE NORMAL TEMPERATURES FOR THE START OF THE PERIOD.
1205 PM EST MON NOV 23 2015 HIGH PRESSURE CENTERED OVER THE OHIO VALLEY WILL BE FORCED SOUTH AS A WEAK TROUGH MOVES ACROSS THE CENTRAL AND EASTERN LAKES THIS EVENING.
With dewpoints remaining on the low side, the threat for rain over the next 24 hours is minimal. Increasing southerly flow will yield a significant increase in low-level moisture, with dewpoints progged to climb into the lower 50s by Tuesday afternoon. Johnson (Tuesday night through Monday) There will be an upper low spinning just off the Pacific Northwest coastline Tuesday night with a pseudo-zonal upper flow aloft over West Central Texas.
234 PM CST MON NOV 23 2015 LATEST WATER VAPOR IMAGERY SHOWS A BROAD UPPER TROUGH SITUATED OVER THE NORTHEASTERN CONUS. AS A RIDGE BUILDS OVER THE WEST AND INTO THE MISSISSIPPI VALLEY. HIGH PRESSURE REMAINS ANCHORED ACROSS THE SOUTHEAST. AS AN UPPER LEVEL TROUGH BEGINS TO DIG SOUTHWARD ALONG THE WEST COAST. AS THE TROUGH OVER THE WEST STRENGTHENS. A PIECE OF ENERGY BREAKS AWAY FROM THE LONGWAVE TROUGH AND BECOMES NEARLY STATIONARY OVER THE SOUTHWEST CONUS. SETTING UP A BLOCKING PATTERN OVER THE US. THE MAIN TROUGH WILL CONTINUE TO PUSH EASTWARD. UPPER LEVEL RIDGING WILL BEGIN TO BUILD INTO THE SOUTHEAST KEEPING THE TN VALLEY REMAINING RAIN FREE THROUGH AT LEAST THANKSGIVING.
1256 PM EST MON NOV 23 2015 HIGH PRESSURE WILL REMAIN IN CONTROL OFFERING DRY WEATHER THROUGH THANKSGIVING DAY.
410 PM EST MON NOV 23 2015 WARM FRONT WITH CLOUDS THIS EVENING. HIGH PRESSURE BUILDS BACK IN ON TUESDAY AND DOMINATES THROUGH THANKSGIVING.
210 PM EST MON NOV 23 2015 WARM FRONT WITH CLOUDS THIS EVENING.
401 PM EST MON NOV 23 2015 A DEEP UPPER TROUGH WILL KEEP MAINLY DRY CONDITIONS AND BELOW NORMAL TEMPERATURES OVER THE AREA THROUGH TUESDAY.
HIGH PRESSURE AT THE SURFACE DRIFTING EAST THROUGH THE ARKLAMISS TONIGHT WILL RESULT IN ANOTHER CHILLY NIGHT ACROSS THE AREA. WHILE MUCH OF THE FORECAST AREA WILL AGAIN EXPERIENCE FREEZING AND SUB-FREEZING TEMPERATURES OVERNIGHT. WITH A LOW AMPLITUDE RIDGE AXIS BUILDING THROUGH THE REGION.
MOSTLY CLEAR SKIES TODAY AND SLIGHTLY WARMER TEMPERATURES UNDER A SOUTHWESTERLY FLOW AHEAD OF A COLD UPPER LEVEL SYSTEM ON TRACK TO MOVE INTO SOUTHEAST OREGON EARLY TUESDAY MORNING.
THE HIGH IS EXPECTED TO DOMINATE TODAYS WEATHER. TODAY THROUGH TUESDAY TEMPERATURES WERE APPROACHING THE LOWER 30S ACROSS WEST CENTRAL LOUISIANA AND EAST TEXAS THIS MORNING AND THE MID 30S ELSEWHERE OVER INLAND AREAS. HIGH PRESSURE WILL SETTLE OVER THE EASTERN U.
349 PM EST MON NOV 23 2015 HIGH PRESSURE OVER THE OHIO VALLEY WILL MOVE SLOWLY EAST OVER THE NEXT FEW DAYS.
319 PM EST MON NOV 23 2015 MOSTLY SUNNY AND BRISK CONDITIONS TODAY WILL GIVE WAY TO INCREASING CLOUDS AND A FEW LIGHT SNOW SHOWERS LATER TONIGHT AND INTO TUESDAY AS A WEAKENING AREA OF LOW PRESSURE MOVES THROUGH THE REGION.
HIPRES GRADUALLY RETREATS ON THU AND FRI AS AN ELONGATED AND POS TILTED LONG WV TROF MVES EWRD FROM THE CNTL PLAINS. THROUGH TONIGHT THE LOWER DECK OF CLOUDS WILL CLEAR OUT, WITH A BKN MID DECK AROUND 15KFT COMING IN.
CIGS WILL BE LOWER ACROSS THE HIGHER TERRAIN OF THE WEST WITH DRT EXPECTED TO DROP TO IFR AROUND 10Z. SURFACE OBSERVATIONS SHOW FREEZING TEMPERATURES ACROSS MUCH OF THE HILL COUNTRY TO ALONG THE ESCARPMENT WITH THE COLDEST READINGS IN LOW LYING AREAS. OFF THE ESCARPMENT SOME AREAS WERE APPROACHING FREEZING AND MAY HAVE TO ISSUE A SHORT FUSE ADVISORY FOR THOSE AREAS. COMPACT UPPER LEVEL TROUGH CURRENTLY OFF THE NORTHERN CALIFORNIA COAST WILL MOVE EAST ACROSS THE GREAT BASIN TODAY AND THE PLAINS STATES ON TUESDAY AS AN UPPER LEVEL LOW MOVES INTO THE PACIFIC NORTHWEST.
1259 PM EST MON NOV 23 2015 A WEAK LOW PRESSURE SYSTEM WILL MOVE SOUTHEAST ACROSS THE GREAT LAKES TODAY AND TONIGHT. HIGH PRESSURE OVER THE OHIO VALLEY WILL MOVE SLOWLY EAST OVER THE NEXT FEW DAYS.
THE LARGE AREA OF HIGH PRESSURE THAT HELPED USHER IN THIS REFRESHING AIRMASS IS CENTERED OVER THE DEEP SOUTH. THIS HIGH WILL MOVE EAST TOWARD THE MID-ATLANTIC STATES TONIGHT AND TUESDAY. AN UPPER-LEVEL LOW WILL DROP INTO THE WESTERN STATES WITH A RIDGE THEN AMPLIFYING OVER THE GULF OF MEXICO AND ANOTHER LOW FORMING SOUTHEAST OF FLORIDA. HIGH PRESSURE WILL GENERALLY REMAIN TO OUR NORTHEAST.
321 PM EST MON NOV 23 2015 CURRENT CONDITIONS ACROSS THE AREA FEATURE CONTINUED DOMINANCE OF HIGH PRESSURE AND SUNNY SKIES. BUT THIS SHOULD NOT PROVIDE ANY SORT OF INSULATION FOR THE AREA AS THIS COLDER AND DRIER AIR MASS WILL ALLOW TMPERATURES TO PLUNGE AGAIN TONIGHT INTO THE LOWER 20S. THE WINDS WILL BE RATHER LIGHT AS THE HIGH PUSHES OFF TO THE EAST AND THE GRADIENT WEAKENS QUITE A BIT. LOWS ON TUESDAY NIGHT WILL ONLY BE IN THE MID 20S FOR THE DEEPER VALLEYS AND AROUND 30 ON THE RIDGES.
High pressure with clear skies and light winds will dominate tonight. With overnight lows expected to bottom out in the low to mid 30s away from the coast and slightly higher RH and lower winds than last night, frost is expected to be more of a concern away from the coast tonight.
444 PM EST MON NOV 23 2015 A DEEP UPPER TROUGH WILL KEEP MAINLY DRY CONDITIONS AND BELOW NORMAL TEMPERATURES OVER THE AREA THROUGH TUESDAY.
346 PM EST MON NOV 23 2015 A WEAKENING LOW PRESSURE AREA MOVING SOUTHEAST FROM THE GREAT LAKES WILL BRING INCREASING CLOUDINESS OVERNIGHT TO THE NORTH COUNTRY ALONG WITH A SLIGHT CHANCE OF SNOW SHOWERS OVER NORTHERN NEW YORK AFTER MIDNIGHT. A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION TUESDAY NIGHT AND WILL REMAIN THROUGH THANKSGIVING. SKIES WILL START OUT CLEAR EARLY THIS EVENING AS A RIDGE OF HIGH PRESSURE MOVES EAST OF THE REGION. WITH THE BEST CHANCES BEING OVER THE HIGHER ELEVATIONS OF THE ADIRONDACKS AS WEAKENING CLIPPER SYSTEM APPROACHES THE REGION.
107 PM EST MON NOV 23 2015 HIGH PRESSURE BUILDS OVER THE LOCAL AREA TODAY. RIDGING ENE INTO THE NC PIEDMONT. TEMPERATURES ARE RISING THROUGH THE UPPER 30S TO THE LOWER 40S. UPR LVL TROUGH SWINGS THROUGH THE ERN GREAT LAKES TO OFF THE NE CONUS CST. LO TEMPS FM THE M20S ACRS MUCH OF THE INTERIOR WITH 30S RIGHT AT THE CST (MAY EVEN SEE THE 1ST FREEZING TEMPERATURES OF THE SEASON AT THE IMMEDIATE COAST FOR PLACES LIKE ORF). LIGHT WINDS AND TURNING A LITTLE WARMER TUE WITH HI TEMPS 50-55F.
1046 AM MST MON NOV 23 2015 CURRENT ANALYSIS SHOWS HIGH PRESSURE OVER THE DAKOTAS/NEBRASKA WITH A LOW PRESSURE TROUGH TO THE EAST OF THE NORTHERN ROCKIES. MAY HAVE TO ADJUST HIGH TEMPS A FEW DEGREES WARMER OVER WRN PARTS OF THE CWA. TODAY THROUGH TUESDAY NIGHT 09Z SURFACE ANALYSIS HAD LEE TROUGH FROM CENTRAL MT INTO CENTRAL CO. WATER VAPOUR SHOWED UPPER RIDGE OVER THE ROCKIES. LEE TROUGH MOVES LITTLE AS MODEST SOUTHEAST RETURN FLOW DEVELOPS EAST OF THE LEE TROUGH. MID/HIGH CLOUDS SPILLING OVER RIDGE COMBINED WITH SHALLOW BOUNDARY LAYER MIXING TODAY WILL RESULT IN TEMPERATURES 5-10F LOWER THAN YESTERDAY. UPPER RIDGE SHIFTS INTO THE MIDWEST AS UPPER TROUGH DROPS INTO THE WEST COAST. LOW PRESSURE ALONG LEE TROUGH IN MT SHIFTS SOUTH AS 1040MB HIGH OVER SOUTHWEST CANADA STARTS TO PUSH COLD FRONT INTO THE CWA LATE.
349 PM CST MON NOV 23 2015 WEAK UPPER RIDGING NOTED ACROSS THE TX PER THE WV IMAGERY. THE RIDGE HAS PULLED MID/UPPER LEVEL PACIFIC MOISTURE INTO TX. HIGH PRESSURE CONTINUES TO DRIFT EWD AWAY FROM OUR REGION. AND THIS COMBINED WITH THE CI WILL MAKE FOR SIGNIFICANTLY WARMER MIN TEMPS FOR TUESDAY MORNING AS COMPARED TO THIS MORNING.
1238 PM EST MON NOV 23 2015 WARM FRONT WITH CLOUDS THIS EVENING.
249 PM EST MON NOV 23 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TONIGHT AND TUESDAY.
(46) UPDATED THE FORECAST TO REFLECT WARMER TEMPERATURES. HIGH PRESSURE WILL BE SHIFTING TO THE EAST BUT SUNNY SKIES ARE ANTICIPATED THROUGH THE DAY. /ISSUED 335 AM CST MON NOV 23 2015/ MAIN CONCERNS IN THIS FORECAST CYCLE ARE THIS MORNING FREEZING TEMPERATURES.
VFR WILL CONTINUE WITH DRY HIGH PRESSURE THROUGH THE PERIOD. BY MID WEEK UPPER RIDGE BUILDS THIS WAY SO LOOK FOR WARMER TEMPS EACH DAY AS WE GO INTO THANKSGIVING AS UPPER FLOW BECOMES MORE SOUTHWESTERLY WITH DEEP UPPER TROUGH OVER SOUTHWESTERN U.
TEMPERATURES ARE REBOUNDING AS THEY'RE ALREADY RANGING FROM THE LOWER TO UPPER 40S. WITH HIGH PRESSURE SETTLED OVER THE REGION. THE PRIMARY SENSIBLE WEATHER IMPACT IN THE NEAR TERM WILL BE FREEZING CONDITIONS ONCE AGAIN TONIGHT, FOLLOWED BY A GRADUAL WARMING TREND. SPRAWLING HIGH PRESSURE REMAINS ANCHORED ACROSS THE SOUTHEAST STATES, SPECIFICALLY CENTERED NEAR THE CWA. WHILE THIS HIGH PRESSURE SYSTEM WILL CONTINUE TO REMAIN THE PERVASIVE WEATHER FEATURE OVER THE NEXT COUPLE OF DAYS, IT WILL BUILD EASTWARD INTO THE SOUTHERN APPALACHIANS AND ULTIMATELY THE WESTERN ATLANTIC INTO MID-WEEK, MARKING THE RETURN OF WARMER AIR INTO CENTRAL MS. THE UPPER-LEVEL FLOW WILL BECOME MORE ZONAL IN BETWEEN A DIGGING WEST COAST TROUGH AND A DEPARTING EAST CONUS TROUGH THROUGH MID- WEEK. IN THE LOWER LEVELS, DEEP SELY WINDS WILL DEVELOP THROUGH TUESDAY.
THROUGH TONIGHT LONGWAVE TROUGH WILL CONTINUE TO INFLUENCE THE AREA THROUGH THE EVENING WHILE AT THE SAME TIME SLOWLY TREKKING OFF TO THE EAST. DUE TO THIS LOWS OVERNIGHT INTO TUESDAY WILL BE SLIGHTLY WARMER.
WITH A HIGH PRESSURE RIDGE EXPECTED TO BE ALONG AND EAST OF I29 THIS EVENING. WITH PARTIAL SUN AND LIMITED MIXING HIGHS ARE EXPECTED TO BE IN THE UPPER 30S OVER THE SNOW COVER TO THE LOWER 40S IN THE MISSOURI VALLEY AND ALONG HIGHWAY 14.
1245 PM EST MON NOV 23 2015 WEAK LOW PRESSURE WILL INCREASE CLOUD COVER TODAY AND TONIGHT. HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY WARMING TEMPERATURES THROUGH MUCH OF THE WEEK. UPPER TROUGH WILL SLOWLY MOVE EASTWARD TODAY AND TONIGHT.
320 PM CST MON NOV 23 2015 CONCERNS ARE MINIMAL IN THE SHORT TERM AS RIDGING REMAINS IN CONTROL FOR ONE MORE DAY. SO SLIGHTLY COOLER READINGS IN THE MID 30S TO LOWER 40S ARE ANTICIPATED.
442 PM EST MON NOV 23 2015 WEAK LOW PRESSURE WILL INCREASE CLOUD COVER TONIGHT. HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY WARMING TEMPERATURES THROUGH MUCH OF THE WEEK.
Tonight, the low-level jet will intensify and should result in gusty winds at KABI after 03z. Low level southerly flow and warmer temperatures are in store across West Central Texas the next 24 hours. Highs today will be in the lower to mid 60s and lows tonight will be in the 40s.
HIGH PRESSURE IS FIRMLY IN PLACE OVER THE SOUTHEAST THIS MORNING.
H5 RIDGING AND HIGH PRESSURE OVERHEAD WILL RESULT IN FAIR WEATHER WITH LIGHT WINDS WHILE SHIFTING EAST.
325 PM CST MON NOV 23 2015 UPPER LEVEL RIDGING WILL BUILD OVER THE FORECAST AREA AS HIGH PRESSURE OVER THE SOUTHEASTERN STATES KEEPS DRY WEATHER AND WARMER TEMPERATURES OVER THE MID SOUTH THROUGH THANKSGIVING DAY.
1233 PM EST MON NOV 23 2015 HIGH PRESSURE CENTERED OVER THE OHIO VALLEY WILL BE FORCED SOUTH AS A WEAK TROUGH MOVES ACROSS THE CENTRAL AND EASTERN LAKES THIS EVENING.
AS INITIALLY SFC RIDGING INFLUENCES. A TRANSITION FROM A DRY NWLY FLOW PATTERN ALOFT TO UPPER LEVEL RIDGING INFLUENCES BY TUE EVENING. THE RESULT OF A PROGRESSIVE DEEPENING UPPER LEVEL LOW DIGGING SWD ACROSS THE PACIFIC COASTLINE AS THE FIRST PART OF THE WORK WEEK PROGRESSES. WITH SFC RIDGING INFLUENCES CONTINUING TO BE DOMINATE TONIGHT. EXPECT SLIGHTLY WARMER LOWS THAN PREVIOUS NIGHTS. WITH LOWS CONTINUING TO BE BELOW FREEZING WITH LOWS IN THE UPPER 20S PLATEAU TO AROUND FREEZING TN RIVER VALLEY. AS SFC RIDGING INFLUENCES SHIFT EWD AS THE FIRST PART OF THE WORK WEEK CONTINUES TO PROGRESS. HIGHS ON THANKSGIVING DAY WILL BE MAINLY IN THE LOW TO MID 60S. WITH ANOTHER MILD DAY ON FRI WITH HIGHS MAINLY IN THE LOWER 60S.
1131 AM CST MON NOV 23 2015 HAND ANALYSIS OF THE 08Z MSL DATA SHOWED LOW PRESSURE CENTERED OVER NORTH CENTRAL MONTANA WITH A BOUNDARY/FRONT STRETCHING ACROSS WYOMING AND EXTREME SOUTHWEST NEBRASKA INTO NORTHEAST COLORADO AND THEN ALONG THE KANSAS-NEBRASKA BORDER TO THE IOWA-MISSOURI BORDER. THERE WAS ALSO A LOW CENTERED ALONG THE MINNESOTA-ONTARIO BORDER WITH A TROUGH DRAPED INTO NORTHERN SOUTH DAKOTA. THERE WAS A BROAD AREA OF LOW PRESSURE. MODELS/GEFS ARE IN DECENT AGREEMENT THIS MORNING REGARDING THE LARGE UPPER LEVEL TROUGH OF LOW PRESSURE THAT WILL BE DIGGING INTO THE WESTERN CONUS THE NEXT FEW DAYS.
1005 AM CST MON NOV 23 2015 HIGH PRESSURE WILL CONTINUE TO MOVE EAST ACROSS THE FORECAST AREA TODAY. THE STRONG LOW PRESSURE SYSTEM ASSOCIATED WITH YESTERDAY'S WINDY CONDITIONS WAS CENTERED OVER THE BORDER OF MANITOBA/ONTARIO/MINNESOTA. A WEAK HIGH PRESSURE AXIS EXTENDED FROM SOUTHERN ALBERTA SOUTHEASTWARD INTO EASTERN MONTANA AND THE WESTERN DAKOTAS. WITH BROAD LOW PRESSURE DEVELOPING IN THE LEE OF THE ROCKIES. TODAY THE STRONG LOW PRESSURE SYSTEM IS FORECAST TO MOVE EAST TOWARDS THE GREAT LAKES AND HUDSON BAY. WARMER AIR IN SOUTHWESTERN NORTH DAKOTA WITH HIGHS IN THE LOWER 40S. WITH COOLER AIR TO THE NORTHEAST WITH HIGHS IN THE MID TO UPPER 30S. TONIGHT THE BROAD UPPER LEVEL RIDGE MIGRATES EASTWARD AND THE FLOW OVER THE ROCKIES BECOMES SOUTHWESTERLY ALOFT.
241 PM EST MON NOV 23 2015 A WEAKENING COLD FRONT WILL CROSS THE AREA LATE TONIGHT AND TUESDAY MORNING AS IT DISSIPATES.
THEN IT WILL TURN COOLER TUESDAY AS A COLD LOW PRESSURE SYSTEM MOVES SOUTH DOWN THE WEST COAST.
SFC RIDGING STILL IN FIRM CONTROL OF OUR AREA LATE THIS MORNING WITH MOSTLY LIGHT S TO SW WINDS NOTED AS OF 16Z.
301 PM CST MON NOV 23 2015 LIGHT SNOW SHOWERS AFFECTING PORTIONS OF THE NORTHLAND THIS AFTERNOON ALONG WITH PLENTY OF CLOUD COVER AND TEMPERATURES IN THE LOWER TO MIDDLE 30S. HAVE GONE WITH A MOSTLY CLOUDY FORECAST FOR TONIGHT AND TUESDAY WITH CORRESPONDINGLY WARMER MINS TONIGHT AND COLDER LOWS TUESDAY.
257 PM EST MON NOV 23 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TONIGHT AND TUESDAY.
236 PM EST MON NOV 23 2015 HIGH PRESSURE WILL BUILD INTO THE AREA AND BECOME CENTERED OVER THE REGION ON TUESDAY. THE HIGH PRESSURE CENTER WILL SHIFT OFF THE NEW ENGLAND COAST MID WEEK WITH A COLD FRONT APPROACHING THE AREA EARLY IN THE WEEKEND.
328 PM EST MON NOV 23 2015 UPPER AIR PATTERN CONSISTS OF A 500 MB TROUGH OVER THE LOWER GREAT LAKES AND A TROUGH OFF THE NORTHERN CA COAST THIS MORNING. NO CHANGES TO GOING FORECAST AND SHOULD BE QUIET ON TUE WITH SFC RIDGING BUILDING INTO THE AREA.
322 PM CST MON NOV 23 2015 HIGH PRESSURE OVER CENTRAL MISSISSIPPI THIS AFTERNOON PROVIDING GENERALLY CLEAR SKIES AND LIGHT WINDS. TEMPERATURES HAVE GENERALLY RECOVERED INTO THE LOWER 60S ACROSS THE AREA. HIGH PRESSURE WILL SLOWLY MOVE EASTWARD TO THE ATLANTIC COAST OVER THE NEXT FEW DAYS AS UPPER RIDGING BECOMES ESTABLISHED OVER THE WESTERN GULF.
310 PM CST MON NOV 23 2015 Main short-term forecast concern continues to be potential for fog development tonight as high pressure slides overhead and winds go light/variable. Upper level ridging will build into central IL Tuesday providing for dry conditions with some mid and high cloud cover. The warming trend will continue slowly with highs reaching the low to mid 40s I-74 northward where snow cover remains. to the low to mid 50s south of I-70.
147 PM EST MON NOV 23 2015 HIGH PRESSURE CENTERED OVER LA/MS/AL IS DOMINATING THE WEATHER PATTERN ACROSS THE GULF COAST AND SOUTHEASTERN STATES. THIS RIDGE WILL KEEP THINGS MOSTLY CLEAR AND DRY THROUGH THE SHORT TERM. TEMPS TONIGHT WILL BE COLD AGAIN BUT ONLY LOOKING FOR THEM TO GET DOWN INTO THE LOWER 30SWITH SOME ISOLATED SPOTS ACROSS EXTREME NORTH GA IN THE UPPER 20S.
354 PM CST MON NOV 23 2015 HIGH PRESSURE WILL STAY IN THE CENTRAL UNITED STATES THROUGH TUESDAY. THE NEXT TROUGH WILL MOVE SOUTH FROM WESTERN CANADA AND ONSHORE OVER THE WEST COAST BY THE START OF TUESDAY.
1225 PM MST MON NOV 23 2015 A FLAT RIDGE WILL MOVE ACROSS THE FORECAST AREA TODAY WITH DRY CONDITIONS AND NEAR SEASONABLE TEMPERATURES WITH WEAK VALLEY INVERSIONS CONTINUING. A VERY WEAK WAVE WILL MOVE ACROSS THE AREA TONIGHT WITH SOME INCREASED HIGH CLOUDINESS WITH SLIGHTLY WARMER OVERNIGHT LOW TEMPERATURES THAN PREVIOUS DAYS. A CLOSED LOW OFF THE PACIFIC NORTHWEST COAST WILL MOVE ONSHORE NEAR NORTHERN CALIFORNIA BY LATE TUESDAY. ESPECIALLY OVER THE HIGHER TERRAIN BY TUESDAY AFTERNOON WITH INCREASING HIGH CLOUDINESS AHEAD OF THIS SYSTEM.
A relatively strong Canadian cold front will begin tracking southward into northwest Montana Tuesday morning, and slowly push its way along the northern Continental Divide and down toward north-central Idaho/southwest Montana by Tuesday evening. Northwest Montana will feel the initial brunt of the cold front beginning Tuesday morning, with strong winds along the Divide and through Bad Rock Canyon.
TODAY THROUGH TUESDAY NIGHT 09Z SURFACE ANALYSIS HAD LEE TROUGH FROM CENTRAL MT INTO CENTRAL CO. WATER VAPOUR SHOWED UPPER RIDGE OVER THE ROCKIES. LEE TROUGH MOVES LITTLE AS MODEST SOUTHEAST RETURN FLOW DEVELOPS EAST OF THE LEE TROUGH. MID/HIGH CLOUDS SPILLING OVER RIDGE COMBINED WITH SHALLOW BOUNDARY LAYER MIXING TODAY WILL RESULT IN TEMPERATURES 5-10F LOWER THAN YESTERDAY. UPPER RIDGE SHIFTS INTO THE MIDWEST AS UPPER TROUGH DROPS INTO THE WEST COAST. LOW PRESSURE ALONG LEE TROUGH IN MT SHIFTS SOUTH AS 1040MB HIGH OVER SOUTHWEST CANADA STARTS TO PUSH COLD FRONT INTO THE CWA LATE.
345 PM EST MON NOV 23 2015 COLD HIGH PRESSURE BUILDS IN TONIGHT INTO TUESDAY. THEN EXTENDS OVER THE AREA THROUGH THE END OF THE WEEK WHILE A WARMING RIDGE ALOFT BUILDS IN. A COLD FRONT WILL APPROACH THE AREA THIS WEEKEND. THE HIGH WILL SETTLE OVER E NC TONIGHT WITH NW WINDS BECOMING CALM AFTER SUNSET.
1259 PM CST MON NOV 23 2015 UPDATED THE FORECAST TO REFLECT WARMER TEMPERATURES. HIGH PRESSURE WILL BE SHIFTING TO THE EAST BUT SUNNY SKIES ARE ANTICIPATED THROUGH THE DAY. /ISSUED 335 AM CST MON NOV 23 2015/ MAIN CONCERNS IN THIS FORECAST CYCLE ARE THIS MORNING FREEZING TEMPERATURES.
1259 PM PST MON NOV 23 2015 TEMPERATURES WILL CONTINUE TO BE ABOVE NORMAL TODAY AS HIGH PRESSURE OVER THE REGIONS WEAKENS.
AS WELL AS THE LOW LEVELS SLOWLY MOISTENING UP AFTER 12Z WITH PATCHY CIGS OF 2500-3500FT MAINLY AFTER 15Z WEST OF A LINE FROM CLL TO HOU. CONDITIONS WILL REMAIN DRY AND WE SHOULD SEE HIGHS IN THE LOWER 60S THIS AFTERNOON UNDER ABUNDANT SUNSHINE.
203 PM EST MON NOV 23 2015 A DEEP UPPER TROUGH WILL KEEP MAINLY DRY CONDITIONS AND BELOW NORMAL TEMPERATURES OVER THE AREA THROUGH TUESDAY.
405 PM EST MON NOV 23 2015 HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH TUESDAY, THEN EXTEND OVER THE AREA FROM THE NORTHEAST THROUGH THE END OF THE WEEK. A COLD FRONT WILL MOVE THROUGH OVER THE WEEKEND. THE HIGH WILL SETTLE OVER E NC TONIGHT WITH NW WINDS BECOMING CALM AFTER SUNSET.
313 PM EST MON NOV 23 2015 WEAK LOW PRESSURE WILL INCREASE CLOUD COVER TONIGHT. HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY WARMING TEMPERATURES THROUGH MUCH OF THE WEEK. MID LEVEL CLOUD DECK AND VIRGA WILL CONTINUE TO SWEEP ACROSS THE REGION THIS AFTERNOON AND EVENING AHEAD OF AN APPROACHING WAVE EMBEDDED IN THE LONG-WAVE TROUGH.
244 PM MST MON NOV 23 2015 ANOTHER GORGEOUS LATE NOVEMBER DAY AS UPPER RIDGING HAS BROUGHT MOSTLY CLEAR SKIES AND ABOVE NORMAL TEMPERATURES. EXPECTING ONLY AN INCREASE IN HIGH CLOUDS ACROSS THE AREA AND AN INCREASE IN WINDS OVER THE HIGH TERRAIN TONIGHT INTO TUESDAY. THE QUICK MOVING TROUGH WILL BRING SLIGHTLY COOLER TEMPERATURES AT 700 MB. HOWEVER CLEARING SKIES DURING THE DAY AND THE WARMER MINIMUM TEMPERATURES OVERNIGHT WILL HELP MAX TEMPERATURES BE COMPARABLE IF NOT WARMER TO TODAY'S READINGS OVER THE PLAINS. TEMPERATURES OVER THE MOUNTAINS WILL LIKELY BE A COUPLE DEGREES COOLER.
With dew points tonight in the u20s-around 30, and weak waa, will go for Lows in the lower 30s tonight. Visible shots show some high clouds incoming from the High Plains, that may scatter about our night-time skies as well. An upper level low coming onshore over the Pacific Northwest on Tuesday is forecast to dig into the Intermountain West through mid week. The low will eventually phase with the main upper level trough over Canada by late week. Successive perturbations ejecting east from the low will bring more clouds and eventually rain to the area during the latter half of the week.
1259 PM EST MON NOV 23 2015 MOSTLY SUNNY AND BRISK CONDITIONS TODAY WILL GIVE WAY TO INCREASING CLOUDS AND A FEW LIGHT SNOW SHOWERS LATER TONIGHT AND INTO TUESDAY AS A WEAKENING AREA OF LOW PRESSURE MOVES THROUGH THE REGION.