Aikyam-Lab/Synoptic-Bench huggingface dataset:
56/GDG RAIN CHANCES WILL BEGIN TO DECREASE THROUGH THE DAY TODAY AS COOLER AND DRIER AIR FILTERS IN FROM THE NORTH. COLD FRONT IS CURRENTLY STRETCHING FROM TUPELO, MS SOUTHWESTWARD INTO CENTRAL LOUISIANA. THAT FRONT WILL CONTINUE TO PUSH EASTWARD THROUGH THE DAY TODAY WITH MUCH COOLER TEMPERATURES AND DRIER AIR FILTERING IN FROM THE NORTHWEST. A STRONG PRESSURE GRADIENT BETWEEN THE LOW OVER THE NORTHERN PLAINS AND RIDGE OVER THE ROCKY MOUNTAINS WILL HELP PRODUCE GUSTY WINDS THIS AFTERNOON. 56/GDG THE UPPER LOW MOVES THROUGH ON SUNDAY AND THEN DRIER AIR MOVES IN BEHIND THE SYSTEM THROUGH MID WEEK.
THIS IS ALLOWING TEMPERATURES TO CLIMB SEVERAL DEGREES WARMER.
713 AM EDT SAT MAR 19 2016 COLD CANADIAN HIGH PRESSURE WILL BUILD INTO THE REGION FOR MUCH OF THIS COMING WEEKEND. LOW PRESSURE WILL MOVE OFF THE CAROLINA COAST SUNDAY EVENING.
SURFACE RIDGING CONTINUES BUILDING INTO THE AREA. WEAK LOW PRESSURE OVER NORTHERN ALABAMA IS ALSO PUSHING EAST WITH INVERTED TROUGH OVER THE LOWER MISSISSIPPI VALLEY BEGINNING TO MOVE EAST AS A COLD FRONT. TEMPS RANGE FROM THE LOWER 40S NORTH TO MID 50S SOUTH WITH A BRISK NORTH WIND. TEMPS WILL BE MUCH COOLER TODAY WITH HIGHS IN THE 50S AND A BRISK NORTH WIND. ALSO EXPECT SOME CLOUDS TO WORK BACK SOUTH INTO THE AREA LATER TONIGHT IN ASSOCIATION WITH THE UPPER LOW. THE UPPER LOW WILL MOVE ACROSS THE MIDSOUTH. WINDS DIMINISH AND SKIES CLEAR OUT LEADING TO GOOD RADIATIONAL COOLING AND A HIGH CHANCE OF FROST AND POSSIBLY A FREEZE IN SOME PLACES AS TEMPS DIP TO FREEZING AND MAYBE A LITTLE LOWER IN THE COOLER SPOTS.
1002 AM EDT SAT MAR 19 2016 LATEST WATER VAPOR IMAGERY AND MID/UPPER-LEVEL ANALYSIS SHOWS RIDGING OVER THE WESTERN PART OF THE COUNTRY WITH FLOW THEN DIVING SOUTHEASTWARD AROUND THE BASE OF THE LOW PRESSURE PORTION OF A REX BLOCK OVER THE UPPER MIDWEST AND SOUTH-CENTRAL CANADA REGIONS. AN AREA OF LOW PRESSURE IS CENTERED OVER EASTERN TENNESSEE WITH A COLD FRONT EXTENDING SOUTHWESTWARD INTO TEXAS. WITH A COLD FRONT THEN MOVING THROUGH THE AREA SUNDAY EVENING.
TEMPERATURES WILL START A GRADUAL CLIMB INTO THE LOWER TO MID 50S TODAY BEFORE REACHING INTO THE 60S ON SUNDAY.
1118 AM EDT SAT MAR 19 2016 WEAK LOW PRESSURE OVER THE CAROLINA MOUNTAINS WILL MOVE EAST ACROSS THE AREA THIS AFTERNOON AND EVENING BRINGING A CHANCE FOR SHOWERS. AN UPPER LEVEL DISTURBANCE MAY TRIGGER SHOWERS LATE SUNDAY OR SUNDAY NIGHT BUT COOLER AND DRIER AIR EXPECTED BEHIND THE SYSTEM THROUGH EARLY IN THE WEEK. A COLD FRONT WILL APPROACH THE REGION LATE WEEK WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. MID/UPPER LEVEL CLOSED LOW OVER THE MIDWEST WILL BECOME MORE PROGRESSIVE AS IT SPREADS SOUTHEASTWARD TOWARD THE LOWER OHIO/MISSISSIPPI VALLEY TONIGHT. THE TROUGH WILL SWING EAST ACROSS THE TENNESSEE VALLEY ON SUNDAY AND TOWARD THE COAST BY SUNDAY NIGHT. THE UPPER LOW WILL BRING ANOTHER SHOT OF MOISTURE TO THE AREA.
605 AM CDT SAT MAR 19 2016 OCCASIONAL LIGHT SNOW WILL PIVOT SOUTH AND SOUTHEAST THROUGH THE DAY TODAY AS THE PERSISTENT LOW PRESSURE TO THE EAST FINALLY MOVES OUT OF THE REGION. SUNDAY NIGHT WILL BRING WARMING LOWERING INTO THE LOWER LEVELS. AND THE HIGH CLOUDS DECREASING DURING THE NIGHT.
CONVECTIVE TEMPERATURES IN THE LOWER 30S AND WITH A MOIST LAYER BETWEEN 925-850MB FEEL THERE WILL BE MORE CLOUDS THAN SUN. DEWPOINTS HOLD IN THE LOWER 20S TONIGHT SO GOOD STARTING OFF POINT FOR MINIMUM TEMPERATURES TONIGHT. CONVECTIVE TEMPERATURES CONTINUE IN THE LOWER 30S HOWEVER MOIST LAYER MORE SHALLOW SO MORE SOLAR IS POSSIBLE. WITH ABOVE TEMPERATURES WILL BE A FEW DEGREES WARMER.
LIGHT RAIN ASSOCIATED WITH A WEAKENING COLD FRONT IS MAKING FOR A DAMP MORNING ALONG THE IMMEDIATE COAST AND ADJACENT HILLS. BUT THIS WILL BE SHORT LIVED AS A WARM FRONT ASSOCIATED WITH THE NEXT STORM SYSTEM WILL MOVE THROUGH THE REGION EARLY TOMORROW MORNING. RAIN RATES WILL INCREASE TOWARDS THE LATTER HALF OF THE MORNING AS A COLD FRONT APPROACHES THE COAST. MODERATE TO HEAVY RAIN WILL THEN BEGIN A TRANSITION TO SCATTERED CONVECTIVE SHOWERS AS COOLER AIR ALOFT MOVES IN BEHIND THE FRONT.
A FRONTAL BOUNDARY EXTENDED SOUTHEAST FROM THE LOW TO NEAR KSDF. DEW POINTS WERE GENERALLY IN THE LOW 30S AROUND THE FRONTAL BOUNDARY WITH 20S ELSEWHERE ACROSS THE GREAT LAKES AND INTO THE PLAINS. COOL WEATHER WILL CONTINUE SUNDAY AS THE HIGH PRESSURE RIDGE SLIDES OVER THE AREA. THE RIDGE SHOULD STILL BE CLOSE BY SUNDAY NIGHT.
A TROUGH EXTENDED BACK NW FROM THAT LOW INTO ERN MT. THIS SHOULD ALLOW LOW TEMPS TO DROP INTO THE LOWER AND MID 20S.
A S/W TROF ROTATING AROUND AN UPPER LOW ON THE MN/IA BORDER WAS BRUSHING CENTRAL WI EARLY THIS MORNING. THE UPPER LOW IS EXPECTED TO SAG SOUTH TODAY. BUT SHOULD PROGRESS SOUTHWARD TONIGHT AS THE UPPER LOW DROPS INTO SOUTHERN IL. A WEAK COLD FRONT WILL PUSH INTO THE FCST AREA ON SUNDAY.
THE COLD FRONT CORRESPONDING TO THE NORTHERN SYSTEM IS EXPECTED TO MOVE ACRS THE CWA/MSA EARLY TODAY.
715 AM EDT SAT MAR 19 2016 CANADIAN HIGH PRESSURE WILL SLIDE ACROSS THE NORTHERN GREAT LAKES TODAY WHILE WEAK LOW PRESSURE OVER THE MIDWEST MOVES SLOWLY ACROSS THE OHIO VALLEY BY SUNDAY.
A COLD FRONT EXTENDS SOUTHWEST FROM THIS LOW THROUGH JACKSON AND CULLMAN COUNTIES IN NORTHERN ALABAMA. VERY DRY AND SLIGHTLY COOLER AIR HAS MOVED INTO NORTHERN ALABAMA AND OUR SOUTHERN MIDDLE TN COUNTIES BEHIND THE FRONT. RIGHT BEHIND THE FRONT IN MERIDIANVILLE DEWPOINTS HAVE ALREADY DROPPED INTO THE LOWER TO MID 30S. MIXING SHOULD BREAK UP THIS LOW CLOUD DECK AS IT TRIES TO PUSH EAST INTO THE AREA.
Upper level low pressure centered over northwest Iowa early this morning is progged to move into southern Illinois by Sunday morning. With cooler temperatures aloft over the region, high temperatures will be in the 40s except for a few 50 degree readings along the Oklahoma border. With clearing skies and light winds under the high, expect temperatures will bottom out closer to the colder NAM MOS guidance temperatures. Given that normal low temperatures for mid March are still at or slightly below freezing, will not be issuing any freeze headlines.
Cold start earlier this morning with widespread freezing temperatures across Northeast Oklahoma and Northwest Arkansas.
WEAK LOW PRESSURE OVER NORTHERN ALABAMA IS ALSO PUSHING EAST WITH INVERTED TROUGH OVER THE LOWER MISSISSIPPI VALLEY BEGINNING TO MOVE EAST AS A COLD FRONT. TEMPS RANGE FROM THE LOWER 40S NORTH TO MID 50S SOUTH WITH A BRISK NORTH WIND. TEMPS WILL BE MUCH COOLER TODAY WITH HIGHS IN THE 50S AND A BRISK NORTH WIND. ALSO EXPECT SOME CLOUDS TO WORK BACK SOUTH INTO THE AREA LATER TONIGHT IN ASSOCIATION WITH THE UPPER LOW. THE UPPER LOW WILL MOVE ACROSS THE MIDSOUTH. WINDS DIMINISH AND SKIES CLEAR OUT LEADING TO GOOD RADIATIONAL COOLING AND A HIGH CHANCE OF FROST AND POSSIBLY A FREEZE IN SOME PLACES AS TEMPS DIP TO FREEZING AND MAYBE A LITTLE LOWER IN THE COOLER SPOTS.
743 AM EDT SAT MAR 19 2016 HIGH PRESSURE WILL BUILD FROM ONTARIO INTO QUEBEC.
DRY AIR AND CLEAR SKIES WILL ALLOW SOME OUTLYING/LOW-LYING LOCATIONS TO FLIRT WITH FREEZING. OFTEN A COVERED PORCH OR OVERHANG IS SUFFICIENT TO PREVENT FROST/ FREEZING.
THERE IS A LAYER OF VERY DRY AIR ATOP THE LOW LEVEL INVERSION. THIS WILL DISLODGE THE REX BLOCK IN PLACE OVER CENTRAL NOAM WITH THE SOUTHERN UPPER LOW COMPONENT OF THIS CONFIGURATION THEN WOBBLING SOUTHEAST INTO THE OHIO VALLEY AND THEN PHASING STRONGLY WITH THE ENCROACHING ARCTIC JET STREAM ENERGY.
TODAY THROUGH SUNDAY NIGHT COMPLEX UPPER-LEVEL FLOW CONTINUED THIS MORNING AS LOW PRESSURE WAS OVER THE MN/IA BORDER AND HIGH PRESSURE WAS OVER SRN MANITOBA. THIS ALL WAS WITHIN A LARGE-SCALE TROUGH THAT COVERED THE ERN 2/3 OF THE CONUS. A RIDGE OVER THE WRN CONUS WAS SLOWLY MOVING EWD. AND THIS WILL HELP BRING AN END TO THE SNOW SHOWERS AND USHER IN WARMER AIR LATER TODAY THROUGH SUNDAY. FOR TODAY THE UPPER LOW WILL MOVE SOUTHEAST ACROSS IA. BY THIS AFTN THE LOW LEVELS WILL BE DRYING AND THUS THE SNOW SHOWERS WILL BE COMING TO AN END. WARM AIR ADVECTION WILL DEVELOP ALOFT AND WILL FOSTER DEVELOPMENT OF A LEE TROUGH OVER ERN WY. THIS WILL TRANSITION TO MUCH WARMER WEATHER FOR SUNDAY. WARMER AIR WILL CONTINUE TO ADVECT INTO THE REGION ON SUNDAY NIGHT.
GROUND/ROAD TEMPS BEING AT OR ABOVE FREEZING IN MOST PLACES SOUTH OF HIGHWAY 30. UPPER LOW WILL PUSH SOUTHEAST AWAY FROM IOWA WITH ANY FORCING SUBSIDING. SURFACE RIDGING WILL SLIDE ACROSS THE STATE ON SUNDAY WITH QUIET CONDITIONS AND TEMPERATURES REMAINING COOL AS THERMAL TROF SLOWLY PUSHING EAST OF THE STATE.
THIS WEEKEND WILL BRING A SHOT OF COOLER THAN NORMAL AIR. THEN RECOVER INTO THE LOW TO MID 50S THROUGH THE DAY. THE UPPER TROUGH WILL CONTINUE TO DIG ACROSS TN TONIGHT THROUGH SUNDAY. POSSIBLY FREEZING.
BROAD UPPER TROUGH OVER THE NORTHERN GREAT PLAINS CONTINUES ITS GRIP ON OUR WEATHER THIS MORNING. STRONG CIRCULATION AROUND THIS TROUGH HAS DRIVEN ANOTHER WAVE OF MOISTURE AND COOLER AIR DOWN FROM WYOMING AND ACRS NERN COLORADO DURING THE PAST FEW HOURS. TEMPERATURES TODAY NOT MUCH WARMER THAN YESTERDAY WITH CONTINUED COLD AIR ADVECTION. LOOK FOR ONLY MID 30S/LOWER 40S ON THE PLAINS AND GENERALLY 30S IN THE HIGH COUNTRY. CLEAR/MOSTLY CLEAR SKIES AND LIGHT BREEZES WILL PREVAIL WITH A STRONG HIGH PRESSURE RIDGE BUILDING IN FROM THE WEST. CLEAR SKIES WILL ALLOW FOR STRONG RADIATIONAL COOLING TO RESULT IN ANOTHER NIGHT OF MIN TEMPS WELL BELOW THE FREEZING MARK.
Lows tonight figure to be cooler still with clear skies and lighter wind speeds.
EXPECT A COLD START TO THE DAY AS EARLY MORNING TEMPS HAVE FALLEN INTO THE LOWER TO MIDDLE 20S. AND THUS WARMER TEMPS THIS AFTERNOON. AS AN UPPER LOW DEEPENS OVER THE WRN ROCKIES. AT THIS POINT PREFER THE ECMWF WHICH IS A LITTLE SLOWER IN PUSHING THE BELOW FREEZING TEMPS INTO CENTRAL KS AND ACROSS THE FORECAST AREA FOR FRI. NEAR MORNING HIGH PRESSURE MAY CAUSE WINDS TO BE LIGHT AND VARIABLE.
OVERNIGHT MINIMA WILL REACH THE LOW 20S AREA-WIDE AND THE LOW TEENS IN THE MOUNTAINS.
1157 AM EST SUN NOV 22 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL PROVIDE DRY AND GRADUALLY WARMING CONDITIONS THROUGH MID WEEK. SOME PASSING HIGH CLOUDS WILL MOVE ACROSS DURING MIDDAY AS AN UPPER TROUGH SWINGS PAST. WENT CLOSER TO THE WARMER MET MOS NUMBERS MOST LOCATIONS.
/ISSUED 529 AM CST SUN NOV 22 2015/ WITH HIGH PRESSURE IN CONTROL OF THE WEATHER ACROSS ARKANSAS. /ISSUED 344 AM CST SUN NOV 22 2015/ MAIN CONCERNS THIS FORECAST CYCLE ARE TEMPS BELOW FREEZING THIS MORNING OVER MUCH OF AR. MONDAY MORNING TEMPS WILL ALSO BE AT OR BELOW FREEZING OVER MANY LOCATIONS. TAKING TEMPS BELOW FREEZING. THE UPPER TROUGH IS OVER THE CENTRAL U.
1123 AM CST SUN NOV 22 2015 WARM FRONT IS STEADILY MOVING EASTWARD ACROSS THE CWA. RAISED HIGHS A COUPLE DEGREES ACROSS CENTRAL/NORTH CENTRAL SD IN ANTICIPATION OF FULL SUNSHINE AND GOOD MIXING OF WARMER AIR ALOFT. STILL HAVE THE POTENTIAL TO SEE SOME BRIEF VERY LIGHT SNOW ACROSS THE FAR EASTERN CWA FOR THE NEXT COUPLE HOURS BEFORE THE WARM FRONT PUSHES MID LEVEL CLOUDS AND LIFT OFF TO THE EAST. 1/2KM WINDS ARE ALSO GOING TO APPROACH 40KTS IN SOME OF THE HIGHER END GUIDANCE. SO HIGHS SHOULD BE IN THE LOW 40S.
Elsewhere, expecting lows in the low 30s. Should be warmer on Monday with low level warm advection and temperatures should warm back into the mid to upper 50s.
EXPECT TO SEE CONROE AT 32 BY MIDNIGHT AND THE FREEZING TEMPERATURES READINGS SHOULD SPREAD ACROSS THE NORTHERN AREAS WITHIN 2 TO 4 HOURS. AREAS WEST OF HOUSTON SHOULD ALSO SEE AN HOUR OR TWO OF FREEZING READINGS SO EXPANDED THE FREEZE WARNING TO THE I-10 CORRIDOR COUNTIES INCLUDING HOUSTON BUT THE INNER AREA WILL LIKELY HOLD IN THE 34-35 DEGREE RANGE BUT THE OUTLYING AREAS AROUND TOMBALL/NW AND PERHAPS EVEN DOWN TOWARD KATY AND BUSH PARK. HIGH PRESSURE PARKED OVERHEAD IN THE MORNING WILL SLIP EAST DURING THE DAY AND THIS WILL HELP WITH A WARMING TREND AND RETURN FLOW.
333 PM EST SUN NOV 22 2015 HIGH PRESSURE PASSES MONDAY MORNING. WARM FRONT SCOOTS PAST MONDAY EVENING. HIGH PRESSURE DOMINATES MIDWEEK. COLD FRONT CROSSES TO END THE WEEK. THE UPPER TROF AXIS IS STILL TO THE WEST. THE UPPER TROF AXIS CROSSES TONIGHT WITH THE STRATOCU ERODING AWAY FROM NW TO SE. TRIED TO HIT THE TYPICAL COLD SPOTS WITH SOME MID TEENS WHILE THE WARM RIVERS KEEP METRO SITES IN THE LOW 20S.
THE PLAINS WILL REMAIN ON THE EDGE OF NORTHWEST TO SOUTHEAST FLOW IN THE UPPER LEVELS ON THE BACKSIDE OF THE EXITING TROUGH AXIS. WEAK UPPER LEVEL RIDGING WILL SLOWLY BUILD ACROSS THE AREA BY MONDAY RESULTING IN WARM AIR ADVECTION AND WESTERLY FLOW. A WEAK RIDGE AXIS AT THE SURFACE WILL PASS SOUTH OF THE PLAINS.
THE "BANANA BELT" REGIONS WERE ABOVE FREEZING. 500 MB RIDGE AXIS WILL BE OVER THE REGION.
SOME OF THE RIDGES MAY GET INTO THE ACT AS WELL. A WARM FRONT WILL MOVE THROUGH THE AREA TOMORROW AFTERNOON AS A WEAK UPPER LEVEL DISTURBANCE MOVES THROUGH THE GREAT LAKES TO THE NORTH.
THIS COLD AIRMASS WILL BRING TEMPS DOWN INTO THE LOWER TO MID 20S ACROSS NORTH GA AND DOWN INTO THE LOWER TO MID 30S ACROSS CENTRAL GA THROUGH MONDAY MORNING.
150 PM CST SUN NOV 22 2015 NORTHWEST FLOW ALOFT WAS RELAXING THIS AFTERNOON IN RESPONSE TO INCREASING HEIGHT FIELDS DOWNSTREAM OF A SHALLOW RIDGE FORECAST TO OVERSPREAD THE REGION ON MONDAY. SO ONCE AGAIN WE ARE SIDING WITH THE WARMER MAV NUMBERS FOR HIGHS ON MONDAY. THIS STRATEGY HAS ALREADY PAID DIVIDENDS WITH HIGHS TODAY AS THE MAV OUTPERFORMED THE COOLER MET AND SUPERBLEND OUTPUT.
251 PM EST SUN NOV 22 2015 A LOW PRESSURE SYSTEM AND ITS ASSOCIATED COLD FRONT WILL MOVE NORTHEAST AND AWAY FROM THE REGION TODAY. A RIDGE OF HIGH PRESSURE WILL THEN BUILD INTO THE REGION WITH FAIR AND DRY WEATHER EXPECTED THROUGH THE UPCOMING WEEK. TEMPERATURES IN A FEW PLACES ALREADY RUNNING A BIT WARMER THAN PREVIOUSLY FORECASTED HIGHS FOR TODAY.
305 PM CST SUN NOV 22 2015 AS HIGH PRESSURE HAS TAKEN A FIRM HOLD ON OUR WEATHER.
356 PM EST SUN NOV 22 2015 HIGH PRESSURE CENTERED OVER THE LOWER OHIO RIVER VALLEY WILL BE SUPPRESSED SOUTHWARD AS AN INCOMING CLIPPER ACROSS THE GREAT LAKES BRINGS A WEAK TROUGH ACROSS THE AREA ON MONDAY EVENING.
1240 PM EST SUN NOV 22 2015 SOME LIGHT FLURRIES WILL CONTINUE EARLY THIS MORNING BEFORE COMING TO AN END SHORTLY AS HIGH PRESSURE BUILDS INTO THE OHIO VALLEY. THIS HIGH WILL OFFER COLDER TEMPERATURES AND DRY CONDITIONS FOR THE REST OF THE WEEKEND. THE HIGH WILL SLIDE EAST THIS WEEK WITH A SOUTHERLY FLOW DEVELOPING AS IT RETREATS.
MODELS REMAIN STEADFAST IN PLACING THE REGION UNDER BROAD UPPER LEVEL RIDGING/SOUTHWEST FLOW FOR THE EARLY PART OF THE NEW WEEK.
This will allow temperatures to warm to about 10 degrees warmer than yesterday's readings with highs in the 40s.
105 PM EST SUN NOV 22 2015 HIGH PRESSURE PASSES MONDAY MORNING. WARM FRONT SCOOTS PAST MONDAY EVENING. HIGH PRESSURE DOMINATES MIDWEEK. COLD FRONT CROSSES TO END THE WEEK. THE UPPER TROF AXIS IS STILL TO THE WEST. THE UPPER TROF AXIS CROSSES TONIGHT WITH THE STRATOCU ERODING AWAY FROM NW TO SE. TRIED TO HIT THE TYPICAL COLD SPOTS WITH SOME MID TEENS WHILE THE WARM RIVERS KEEP METRO SITES IN THE LOW 20S.
HIGH PRESSURE WILL MOVE IN AND BRING FAIR AND MILDER WEATHER FOR MID WEEK THROUGH THANKSGIVING. WITH MUCH OF THE REST OF THE REGION SEEING TEMPS DIP INTO THE LOWER TO MID 20S.
Beyond that high pressure at the surface and rising heights aloft will keep the region dry through the period. By the end of the short term period southerly flow on the back side of the high and winds aloft becoming southwest will begin to advect moisture back across the area but not enough to produce precipitation anywhere in our area. An upper level low coming onshore over the Pacific Northwest Monday night is forecast to dig into the Intermountain West by 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 by mid to late week.
Temperatures were very cold across the area this morning, with readings in the lower to mid 20s south of the I-20 corridor and in the mid to upper 20s across the Big Country. Lows Monday morning, lows will be in the upper 20s to lower 30s south of the I-20 corridor and in the lower 30s across the Big Country.
AS THE RADAR IS BEGINNING TO LIGHT UP WITH VERY LIGHT REFLICTIVITY AMOUNTS OUT AHEAD OF AN APPROACHING WARM FRONT JUST ENTERING WESTERN MN. AS THE LOW LEVELS ARE QUITE DRY. AND OVERNIGHT LOWS WILL BE A BIT WARMER WITH GENERALLY MID TO UPPER 20S EXPECTED.
COOL HIGH PRESSURE WILL BUILD INTO CENTRAL NORTH CAROLINA TONIGHT AND MONDAY AND SETTLE OVERHEAD AND PERSIST INTO THE MIDDLE OF THE WEEK. STRONG LOW LEVEL CAA WILL OCCUR AS A MID/UPPER LEVEL TROUGH CROSSES THE REGION. THE 850MB THERMAL TROUGH SETS UP OVERHEAD BY 12Z MONDAY WITH THE CORE OF THE COLDEST AIR TO OUR NORTH-NW. DUE TO THE LOW LEVEL CAA. PRESENCE OF THE DRY AIR MASS AT THE SURFACE AND THE NEAR CALM WIND REGIME SHOULD PERMIT TEMPS TO FALL BELOW FREEZING FOR A LARGE PART OF THE NIGHT.
THE LIGHT WINDS AND CLR SKIES WILL ALLOW FOR MAX RADIATIONAL COOLING AND COULD SEE A FEW LOCATIONS BRIEFLY DIP TO THE FREEZING MARK TOWARD SUNRISE MON MORNING. AM NOT EXPECTING WIDESPREAD FREEZING.
1008 AM CST SUN NOV 22 2015 HIGH PRESSURE CONTINUES TO SETTLE IN ACROSS THE AREA THIS MORNING RESULTING IN CLEAR SKIES AND DIMINISHING WINDS. 12Z SOUNDING SAMPLED BACKING WINDS WITH HEIGHT AND CAA OCCURRING WHICH WILL RESULT IN COOL DAYTIME HIGHS IN THE LOW TO MID 50S DESPITE SUNNY SKIES. DECREASING LATE AFTERNOON INTO THE EVENING AS HIGH PRESSURE SETTLES SOUTHEAST INTO THE REGION.
MODELS HAVE H5 RIDGE OUT WEST GOING MORE ZONAL OVER THE ROCKIES TONIGHT INTO MONDAY. A WEAK LEE-SIDE TROUGH SETS UP WEST. WITH HIGH PRESSURE SOUTH AND EAST. THE SETUP OF THIS TROUGH LATER TONIGHT INTO MONDAY IS GOING TO ALLOW A WIND SHIFT FROM MORE WESTERLY TO MORE SOUTHERLY/SOUTHWESTERLY. THE SHIFT/INTERACTION OF THESE WINDS WITH THE SNOWPACK/BAND OVER THE WEST-CENTRAL CWA WILL HOLD THE FOCUS OF COOLER/COLDER TEMPS ALONG THE BAND VERSUS AT AND EAST OF IT WITH THE WEST FLOW. WITH THE SETUP OF THE LEE-SIDE TROUGH AND SSW FLOW MONDAY. AND IN THE LOWER 50S FOR LOCALES THAT RESIDE IN THE SNOWPACK AREA.
DUE TO THE VICINITY OF THIS RIDGE. WITH HIGH PRESSURE SETTLING INTO THE REGION.
A LITTLE COOLER ON MONDAY WITH INCREASING CLOUDS. BROAD RIDGING MOVES ACROSS THE CENTRAL CONUS MONDAY NIGHT AS A HIGH AMPLITUDE TROUGH MOVES EAST OF THE EASTERN SEABOARD AND ANOTHER TROUGH DEVELOPS OVER THE WEST COAST.
HIGH PRESSURE WILL REMAIN OVER THE REGION. ABOVE THE INVERSION TEMPERATURES WILL BE WARMER UNDER MOSTLY CLEAR SKIES BUT WITH SOME INCREASING HIGH CLOUDS LATE TODAY AND OVERNIGHT.
With good rad cooling for much of the night, temps should fall into the low to mid 20s for lows with the usual cold spots dipping into the upper teens for lows. Monday will be a mostly sunny day with temps beginning a warming trend as the upper trough departs our region. Monday night low temps will be noticeably warmer in the upper 20s to lower 30s.
WINDS WILL STAY AROUND 8 TO 12 KTS THROUGH 23 TO 3Z THEN DROP TO CALM FOR THE REST OF THE PERIOD AS HIGH PRESSURE BUILDS INTO THE AREA. A STEADY NORTH WIND OF 10 MPH WILL MAKE IT FEEL EVEN COOLER.
AS THE LOW PASSES OFF TO THE NE THIS AFTERNOON. SEASONABLY MILD TEMPS IN THE 30S WITH LIGHT WINDS ARE EXPECTED MONDAY WITH SFC RIDGING OVER THE AREA. MID-LEVEL RIDGING AND LOW-LEVEL RETURN FLOW WILL DEVELOP LATER MON NIGHT AND TUES AS AN UPPER LOW DIGS INTO THE SOUTHWEST.
TEMPERATURES STARTING TO WARM TO ABOVE FREEZING THIS HOUR WITH A FEW REMAINING LOCATIONS LIKELY TO CLIMB ABOVE 32F BY 10 AM. THE LOW LEVEL ONSHORE FLOW WILL CONTINUE AND STRENGTHEN THROUGH MIDWEEK.
HIGH PRESSURE WILL CONTINUE TO EXPAND INTO THE EASTERN GREAT BASIN FOR THE NEXT COUPLE OF DAYS.
KICKING THE UPPER LOW NOW OFF THE NORTHERN CALIFORNIA COAST TO THE EAST.
HIGH PRESSURE SPREADING OVER THE AREA WILL SUPPORT CLEAR SKIES AND LIGHT NORTH WINDS THE NEXT 24 HOURS.
WARM FRONT IS STEADILY MOVING EASTWARD ACROSS THE CWA. RAISED HIGHS A COUPLE DEGREES ACROSS CENTRAL/NORTH CENTRAL SD IN ANTICIPATION OF FULL SUNSHINE AND GOOD MIXING OF WARMER AIR ALOFT. STILL HAVE THE POTENTIAL TO SEE SOME BRIEF VERY LIGHT SNOW ACROSS THE FAR EASTERN CWA FOR THE NEXT COUPLE HOURS BEFORE THE WARM FRONT PUSHES MID LEVEL CLOUDS AND LIFT OFF TO THE EAST. 1/2KM WINDS ARE ALSO GOING TO APPROACH 40KTS IN SOME OF THE HIGHER END GUIDANCE. SO HIGHS SHOULD BE IN THE LOW 40S.
416 PM EST SUN NOV 22 2015 HIGH PRESSURE PASSES MONDAY MORNING. WARM FRONT SCOOTS PAST MONDAY EVENING. HIGH PRESSURE DOMINATES MIDWEEK. COLD FRONT CROSSES TO END THE WEEK. THE UPPER TROF AXIS IS STILL TO THE WEST. THE UPPER TROF AXIS CROSSES TONIGHT WITH THE STRATOCU ERODING AWAY FROM NW TO SE. TRIED TO HIT THE TYPICAL COLD SPOTS WITH SOME MID TEENS WHILE THE WARM RIVERS KEEP METRO SITES IN THE LOW 20S.
209 PM EST SUN NOV 22 2015 HIGH PRESSURE WILL GRADUALLY BUILD OVER THE REGION THROUGH MID WEEK. TEMPERATURES WILL MODERATE FOR THE SECOND HALF OF THE WEEK AS THE HIGH MOVES OFFSHORE.
333 PM CST SUN NOV 22 2015 BIG STORY FOR THE SHORT-TERM IS THE EXPECTED FREEZING TEMPS TONIGHT. HIGH PRESSURE CONTINUES TO SETTLE IN AT THE SFC. AND THE CENTER OF THE RIDGE WILL BE DIRECTLY OVHD TONIGHT. AND DEW POINTS IN THE LOWER 20S WILL PROVIDE AMPLE OPPORTUNITY FOR RADIATIONAL COOLING DOWN INTO THE UPPER 20S/LOW 30S.
Scattered mid/high clouds are possible until an upper trough axis exits the region.
12Z MODEL RUNS WERE WARMER THAN PREVIOUS RUNS KEEPING AREAS LIKE BEXAR COUNTY AND PARTS OF THE EDWARDS PLATEAU JUST A FEW DEGREES ABOVE FREEZING OVERNIGHT.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW HIGH PRESSURE WILL RESULT IN DRY CONDITIONS THROUGH MID-WEEK ALONG WITH A WEAK WARMING TREND.
HIGH PRESSURE AND A RELATIVELY DRY ATMOSPHERE WILL SUPPORT CLEAR SKIES. WARMER WEATHER WILL ENSUE ON MONDAY AS HIGH TEMPS RANGE FROM THE MID AND UPPER 60S ACROSS THE NORTHERN COUNTIES TO NEAR 70 ACROSS THE SOUTHERN MID AND LOWER VALLEY. WINDS WILL START TO VEER AS HIGH PRESSURE OVER THE AREA SHIFTS EAST.
HIGH PRESSURE WILL BUILD ACROSS THE TENNESSEE VALLEY OVER THE NEXT 24 HOURS. STRONG RIDGING WILL BUILD BACK OVER THE EASTERN CONUS THROUGH THANKSGIVING DAY.
OTHERWISE MOSTLY SUNNY SKIES ARE EXPECTED AS A HIGH PRESSURE SYSTEM MOVES ACROSS THE AREA. CLOUDS WILL INCREASE TONIGHT AS A LOW PRESSURE SYSTEM DROPS SOUTHEAST FROM CANADA INTO THE UPPER GREAT LAKES. HIGHS TODAY WILL RANGE FROM THE MID 20S TO THE LOWER 30S. TEMPERATURES WILL WARM BACK UP INTO THE 50S BY THANKSGIVING AS SOUTHERLY WINDS DEVELOP AHEAD OF A SLOW MOVING COLD FRONT.
SOME OF THE RIDGES MAY GET INTO THE ACT AS WELL. A WARM FRONT WILL MOVE THROUGH THE AREA TOMORROW AFTERNOON AS A WEAK UPPER LEVEL DISTURBANCE MOVES THROUGH THE GREAT LAKES TO THE NORTH. STRONG RIDGING WILL BUILD BACK OVER THE EASTERN CONUS THROUGH THANKSGIVING DAY.
A COLD FRONT WILL MOVE THROUGH WESTERN WASHINGTON MONDAY AFTERNOON.
NORTHWEST FLOW ALOFT WILL DECREASE TODAY AS AN UPPER LEVEL RIDGE MOVES OVER THE ROCKIES FROM THE WEST. THE RIDGE WILL BRING WARMER AIR WITH IT RESULTING IN HIGHS IN THE 50S ACROSS NORTHEAST COLORADO.
AS THE CENTER OF THE HIGH MOVES OVER THE REGION THIS EVENING. /ISSUED 1008 AM CST SUN NOV 22 2015/ HIGH PRESSURE CONTINUES TO SETTLE IN ACROSS THE AREA THIS MORNING RESULTING IN CLEAR SKIES AND DIMINISHING WINDS. 12Z SOUNDING SAMPLED BACKING WINDS WITH HEIGHT AND CAA OCCURRING WHICH WILL RESULT IN COOL DAYTIME HIGHS IN THE LOW TO MID 50S DESPITE SUNNY SKIES. DECREASING LATE AFTERNOON INTO THE EVENING AS HIGH PRESSURE SETTLES SOUTHEAST INTO THE REGION.
CLEAR SKIES AND LIGHT WINDS WILL ALLOW SUBFREEZING LOWS.
Winds will remain light tonight has high pressure moves off to the east. Have stayed on the cooler side of the temperature guidance because of the strong radiational cooling.
BUT AFTER SUNSET SPEEDS WILL GENERALLY DROP TO AROUND 15 MPH OR LESS - WITH THE EXCEPTION OF THE BUFFALO RIDGE AREA WHERE GUSTS MAY REACH 25 MPH OVERNIGHT. HOWEVER WITH MILDER MID LEVEL TEMPERATURES UNDER A BUILDING RIDGE. COULD REACH THE LOWER 40S IN THESE AREAS WHILE THE 30S ARE EXPECTED ELSEWHERE.
349 PM EST SUN NOV 22 2015 HIGH PRESSURE OVER THE REGION WILL ALLOW COLDER THAN NORMAL TEMPERATURES THROUGH THE FIRST PART OF THE WEEK WITH DRY CONDITIONS.