Aikyam-Lab/Synoptic-Bench huggingface dataset:
136 AM EDT TUE SEP 15 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE COMMONWEALTH AND PREVAIL RIGHT INTO THIS WEEKEND. TO THE L50S OVER PARTS OF THE LOWER SUSQ VALLEY. SEVERAL WAVES DIGGING THROUGH THE BASE OF A FAIRLY PROGRESSIVE WEST COAST TROUGH WILL HELP TO STEADILY AMPLIFY A DOWNSTREAM. RIDGE THAT WILL BRING ANOTHER 3-4 DAYS OF SPLENDID LATE SUMMER WEATHER. AS THIS RIDGE BUILDS AT THE SFC AND ALOFT THIS WEEK.
A BROAD UPPER LEVEL TROUGH OVER WESTERN CANADA WILL LINGER OVER THE PACIFIC NORTHWEST DURING THIS PERIOD. BRINGING MUCH COOLER WEATHER AND PRECIPITATION CHANCES THROUGH THE SHORT TERM.
511 AM EDT TUE SEP 15 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVER THE COMMONWEALTH TODAY AND PREVAIL RIGHT INTO THE UPCOMING WEEKEND.
The first wave of moisture and rain has arrived across western Montana and north Central Idaho as an upper level trough slowly moves east over the Pacific Northwest. Snow levels are expected to remain above passes, with the freezing level around 6500 to 7000 feet. Nevertheless, today will feel much cooler than the previous few days, with cloud cover and a cool air mass leading to highs in the upper 50s to low 60s for most valleys. Although clouds persist overnight, less rain is expected with temperatures dropping into the low to mid 40s.
255 AM EDT TUE SEP 15 2015 SKIES WILL GRADUALLY BECOME MOSTLY CLEAR OVERNIGHT FROM WEST TO EAST AS A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT BUILDS NORTHEAST FROM THE OHIO VALLEY. THIS HIGH PRESSURE SYSTEM WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE END OF THIS WEEK.
141 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL STALL OVER THE MID ATLANTIC REGION AND STRENGTHEN EARLY THIS WEEK. UNSEASONABLE WARMTH THIS PD TIED TO BLDG RIDGE ALOFT AHD OF FAIRLY VIGOROUS TROUGHING DVLPG THROUGH THE NRN ROCKIES. LEAD ENERGY EJECTING NEWD OUT OF ROCKIES TROUGH MORE EVENLY PROGGED IN MED RANGE SOLUTIONS TO OCCUR LT THU. AS SUCH AND IN CONTEXT OF DILUTED EWD EXTENT OF LL THETA-E RIDGE WILL CONTRACT THU NIGHT POPS FURTHER W/WWD BIAS PREFERRED GIVEN ABOVE CONSENSUS SCENARIO. WK SHRTWV LIFTING NE OVER ERN CONUS RIDGE WILL RESULT IN SCT-BKN ALTO CU OVER THE AREA EARLY THIS MORNING.
220 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES TODAY THROUGH WEDNESDAY.
650 AM EDT TUE SEP 15 2015 A RIDGE OF HIGH PRES WILL MOVE INTO THE REGION LATER TODAY AND REMAIN IN CONTROL OF THE REGION'S WEATHER THROUGH THE END OF THE WEEK. 650 AM UPDATE: CLOUDS MOVING OUT AS THE UPPER TROF HAS MOVED EAST AND HIGH PRES RIDGING MOVING IN FROM THE W. A STRONG 500H RIDGE WITH HEIGHTS MORE TYPICAL OF MID SUMMER WILL REMAIN IN PLACE ACROSS THE REGION.
DRY CONDITIONS WILL CONTINUE WEDNESDAY AS AN UPPER LEVEL RIDGE LOCATED ACROSS TEXAS EXPANDS EASTWARD. HEIGHTS WILL CONTINUE TO INCREASE ACROSS THE REGION AND WILL RESULT IN HIGHS BACK INTO THE LOWER 90S. /28/ THE SUBTROPICAL RIDGE WILL CONTINUE OVER THE ARKLAMISS RESULTING IN MORE RAIN-FREE AND INCREASINGLY HOT WEATHER AS WE GO FROM LATE WEEK INTO THE WEEKEND.
524 AM EDT TUE SEP 15 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVER THE COMMONWEALTH TODAY AND PREVAIL RIGHT INTO THE UPCOMING WEEKEND.
/issued 358 AM CDT TUE SEP 15 2015/ A broad upper level ridge axis will remain in place from northern Mexico across central Texas leaving west Texas and eastern New Mexico in weak southwesterly flow this week. An upper trough currently moving into the west coast will move east allowing convection to increase in the Davis and Guadalupe Mountains.
A QUIET WEATHER PATTERN WILL STAY IN PLACE THROUGH THE REST OF THE WEEK WITH HIGH PRESSURE PRODUCING DRY WEATHER AND ABOVE AVERAGE HIGHS.
355 AM MDT TUE SEP 15 2015 A LARGE SCALE TROUGH CONTINUES TO DEEPEN OVER THE INTERMOUNTAIN WEST THROUGH THESE PERIODS BRINGING CONTINUED UNSETTLED AND WINDY WEATHER TO THE FORECAST AREA.
655 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL REMAIN NEARLY STATIONARY OVER THE EASTERN U. WITH LOWS TONIGHT IN THE LOWER TO MIDDLE 50S. UPR LEVEL RIDGE WILL BUILD OVER THE ERN CONUS AS STRONG SHRTWV DIGGING SE ACROSS THE NE PACIFIC DEEPENS WEST COAST TROF. WK LEAD SHRTWV LIFTING NE UP BACKSIDE OF RIDGE ACROSS MID MS VALLEY GENERATING SOME MID CLOUDS OVER IL WHICH SHOULD MOVE INTO OUR CWA THIS MORNING BUT EXPECT A DISSIPATING TREND DURING THE DAY AS RIDGE CONTS TO BUILD. WK WAA AND A CONSIDERABLY WARMER START TO THE DAY EXPECTED TO RESULT IN HIGHS A FEW DEGREES ABOVE YESTERDAY'S. VERY WARM AIR WILL BE OVER THE REGION THROUGH THE REST OF THE WORK WEEK AS AN UPPER LEVEL RIDGE CONTINUES OVER THE AREA.
413 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL REMAIN NEARLY STATIONARY OVER THE EASTERN U. WITH LOWS TONIGHT IN THE LOWER TO MIDDLE 50S. UPR LEVEL RIDGE WILL BUILD OVER THE ERN CONUS AS STRONG SHRTWV DIGGING SE ACROSS THE NE PACIFIC DEEPENS WEST COAST TROF. WK LEAD SHRTWV LIFTING NE UP BACKSIDE OF RIDGE ACROSS MID MS VALLEY GENERATING SOME MID CLOUDS OVER IL WHICH SHOULD MOVE INTO OUR CWA THIS MORNING BUT EXPECT A DISSIPATING TREND DURING THE DAY AS RIDGE CONTS TO BUILD. WK WAA AND A CONSIDERABLY WARMER START TO THE DAY EXPECTED TO RESULT IN HIGHS A FEW DEGREES ABOVE YESTERDAY'S. VERY WARM AIR WILL BE OVER THE REGION THROUGH THE REST OF THE WORK WEEK AS AN UPPER LEVEL RIDGE CONTINUES OVER THE AREA.
303 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH LATE WEEK.
TODAY AND TONIGHT A MID LEVEL SHORT WAVE RIDGE AXIS NOW SLIDING ACROSS LAKE HURON WILL ONLY SLOWLY INCH ITS WAY ACROSS THE ERN GREAT LAKES TODAY AND TONIGHT. THE RIDGE WILL CONTINUE AMPLIFYING DURING THE COURSE OF THE SHORT TERM. A PAIR OF SHORT WAVE TROUGHS UPSTREAM /CURRENTLY NEAR GREEN BAY AND ERN MINNESOTA/ WILL BE DEFLECTED WELL NORTH OF THE FORECAST AREA GIVEN THE EXPANDING RIDGE TO THE EAST. THE DEGREE OF WARMING IN THE LOW LEVELS. WILL STILL SUPPORT AFTERNOON HIGHS IN THE LOW 80S OVER MUCH OF THE FORECAST AREA.
HIGH PRESSURE OVER THE WESTERN ATLANTIC RIDGES NORTHWEST THROUGH THE MID ATLANTIC STATES TO THE GREAT LAKES. A LARGE AREA OF HIGH PRESSURE CENTERED OVER THE MID ATLANTIC STATES WILL REMAIN STATIONARY THROUGH MID WEEK.
630 AM EDT TUE SEP 15 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW A QUIET WEATHER PATTERN WILL STAY IN PLACE THROUGH THE REST OF THE WEEK WITH HIGH PRESSURE PRODUCING DRY WEATHER AND ABOVE AVERAGE HIGHS.
520 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER FOR THE REST OF THE WEEK. MAINLY CLEAR SKIES AND DRY WEATHER ARE EXPECTED TODAY UNDER A HIGH PRESSURE RIDGE. PERSISTENT RIDGING ACROSS THE MID ATLANTIC AND NORTHEAST CONUS REGION IS EXPECTED TO KEEP DRY AND WARM WEATHER ACROSS THE REGION. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
925 MB TEMPS OF 20 TO 21C WILL YIELD HIGHS IN THE LOWER 80S EXCEPT FOR 70S ALONG THE LAKE.
220 AM CDT TUE SEP 15 2015 WINDY CONDITIONS WILL PREVAIL ACROSS THE REGION THROUGH LATE THU OR EARLY FRI BEFORE A COLD FRONT ARRIVES SHIFTING WINDS TO THE NORTH.
At 00z Tuesday a 500mb trough was located along the coast of the Pacific Northwest and northern California. These warm temperatures were located along and east of a surface to 850mb lee trough that extended from northeast New Mexico into the panhandle of Nebraska. breezy surface winds tonight will aid in keeping temperatures mild in the mid to upper 60s cwa-wide and even warmer in the central KS locations where wind speeds should be strongest.
352 AM EDT TUE SEP 15 2015 A RIDGE OF HIGH PRES WILL MOVE INTO THE REGION LATER TODAY AND REMAIN IN CONTROL OF THE REGION'S WEATHER THROUGH THE END OF THE WEEK. A RIDGE OF HIGH PRES BUILDS IN FROM THE WEST. THE RIDGE WILL BRING MUCH WARMER TEMPS AND MOSTLY SUNNY SKIES TO THE FCST AREA TODAY. A STRONG 500H RIDGE WITH HEIGHTS MORE TYPICAL OF MID SUMMER WILL REMAIN IN PLACE ACROSS THE REGION.
WARM FRONT SITUATED ALONG THE COAST SHOULD PROVIDE SCT SHRA AND ISO TSRA OVERNIGHT.
TEMPERATURES ALONG THE ISLAND CHAIN ARE IN THE LOWER 80S UNDER MOSTLY CLOUDY SKIES.
Low level flow around the southern periphery of the ridge and the approaching front will increase cloud cover over the region today and bring a return of slight to low chance PoPs the the southern portion of the forecast area from the coastal FL Panhandle to near Valdosta and points south.
117 AM EDT TUE SEP 15 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK. TEMPERATURES FALLING INTO THE LOW 50S FOR MOST AREAS. TEMPS WILL SLOWLY MODERATE AS THE RIDGE DRIFTS NORTHEAST.
358 AM CDT TUE SEP 15 2015 A broad upper level ridge axis will remain in place from northern Mexico across central Texas leaving west Texas and eastern New Mexico in weak southwesterly flow this week. An upper trough currently moving into the west coast will move east allowing convection to increase in the Davis and Guadalupe Mountains.
THE MODELS SHOW THAT THE LOW WILL MOVE INTO THE WESTERN ATLANTIC WATERS EARLY THIS WEEKEND AND THEN MOVE NORTHEAST FURTHER INTO THE ATLANTIC WATERS LATE THIS WEEKEND.
156 AM EDT TUE SEP 15 2015 SKIES WILL GRADUALLY BECOME MOSTLY CLEAR OVERNIGHT FROM WEST TO EAST AS A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT BUILDS NORTHEAST FROM THE OHIO VALLEY. THIS HIGH PRESSURE SYSTEM WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE END OF THIS WEEK.
305 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES TODAY THROUGH WEDNESDAY.
HIGH PRESSURE WILL REMAIN OVERHEAD THROUGH MID TO LATE WEEK. GENERALLY IN THE LOW 80S. OVERNIGHT LOWS IN THE LOW TO MID 50S EXPECTED.
DEEP MOISTURE AHEAD OF A DISTURBANCE IN THE SOUTHWEST FLOW ALOFT WILL CONTINUE TO MOVE OVER THE COLD FRONT ACROSS SOUTHWEST MONTANA AND THE COOL CANADIAN AIRMASS AND NORTHERLY UPSLOPE WINDS OVER NORTH CENTRAL MONTANA. LATEST FORECAST MODELS HAVE COME INTO BETTER AGREEMENT THAT THE TROF WILL PROGRESS SLOWLY EASTWARD TONIGHT/TOMORROW SO THAT PRECIPITATION WILL LINGER OVER MOST OF THE REGION UNTIL EARLY TUES AFTN. HIGH TEMPS WILL ALSO BE NOTICEABLY COOLER, WITH MID 50S TO AROUND 60 ON TUES AND LOW TO MID 50S ON WED.
401 AM CDT TUE SEP 15 2015 THE LATEST SURFACE ANALYSIS SHOWS HIGH PRESSURE OVER THE MID- ATLANTIC STATES WITH LIGHT EAST/SOUTHEAST WINDS OVER THE TN VALLEY.
IT IS EXPECTED TO ELONGATE INTO AN OPEN TROUGH WITH AN ELONGATED CIRCULATION GIVING US NE WINDS FOR SEVERAL DAYS.
405 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER AND WARMER TEMPERATURES THROUGH THE WORK WEEK.
225 AM EDT TUE SEP 15 2015 A LARGE HIGH PRESSURE SYSTEM HAS TAKEN CHARGE OF OUR WEATHER. AN UPPER LEVEL RIDGE WILL EXTEND THROUGH THE NORTHEASTERN U.
337 AM CDT TUE SEP 15 2015 STRONG SOUTHERLY GRADIENT AND VERY WARM TEMPERATURES AGAIN TODAY AS LOW PRESSURE DEEPENS TO THE WEST AND SHIFTS NORTH OF THE AREA.
403 AM CDT TUE SEP 15 2015 A WARM FRONT WAS LOCATED FROM NEAR KBPT TO THE SOUTH SIDE OF HOUSTON TO COLUMBUS WILL LIKELY WASH OUT AS IT PUSHES FURTHER INLAND THIS MORNING. MID LEVEL HIGH PRESSURE WAS RIDGING ACROSS THE GULF COAST STATES INTO SE TEXAS AS WELL. FROM ABOUT 500 MB TO 200 MB AN UPPER LEVEL TROUGH THAT WAS OVER THE EASTERN AND COASTAL AREAS LAST EVENING WAS SHOWN BY THE WATER VAPOR TO BE MOVING OVERHEAD THE FORECAST AREA AT 3 AM. EXPECT THAT AS THIS TROUGH MOVES OVER THE WARM FRONT THAT A FEW SHOWERS AND ISOLATED THUNDERSTORMS WILL BE POSSIBLE. AM EXPECTING LESS COVERAGE ON WEDNESDAY AS AN UPPER LEVEL HIGH PRESSURE AREA BEGINS TO BUILD OVERHEAD.
218 AM EDT TUE SEP 15 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE COMMONWEALTH AND PREVAIL RIGHT INTO THIS WEEKEND. TO THE L50S OVER PARTS OF THE LOWER SUSQ VALLEY. SEVERAL WAVES DIGGING THROUGH THE BASE OF A FAIRLY PROGRESSIVE WEST COAST TROUGH WILL HELP TO STEADILY AMPLIFY A DOWNSTREAM. RIDGE THAT WILL BRING ANOTHER 3-4 DAYS OF SPLENDID LATE SUMMER WEATHER. AS THIS RIDGE BUILDS AT THE SFC AND ALOFT THIS WEEK.
Cooler temperatures through mid-week, then gradual warming into the weekend. Temperatures are generally running 5-10 degrees cooler and humidities 15-30 percent higher than 24 hours ago. Cannot rule out a dusting to a few inches of snow, mainly over the higher elevations of the extreme southern Cascade Range and along the northern Sierra Crest. Temperatures will remain cool today and Wednesday and will hinge somewhat on the amount of cloud cover and precipitation, but expect highs Wednesday in the 60s across the northern Sacramento Valley, 70s elsewhere across the lower elevations with 50s-60s in the mountains.
/ISSUED 953 PM EDT MON SEP 14 2015/ AS THE TROUGH ACROSS THE REGION CONTINUES TO MOVE WESTWARD. /ISSUED 400 PM EDT MON SEP 14 2015/ A TROUGH AXIS STRETCHING FROM THE WESTERN BAHAMAS SOUTH ACROSS EASTERN CUBA WILL CONTINUE TO MOVE WESTWARD. SURFACE WINDS ARE NE-E AHEAD OF THE TROUGH AND OUT OF THE SOUTHEAST BEHIND IT WITH INCREASING SPEEDS. THE TROUGH AXIS WILL MOVE WEST OF THE AREA ON TUE-WED AND INTO THE GULF OF MEXICO. RIDGING IN THE MID LEVELS THROUGH WEDNESDAY WILL BE REPLACED BY A TROUGH MOVING INTO THE SOUTHEASTERN STATES LATE THIS WEEK WHICH IS FORECAST TO HANG UP ACROSS FLORIDA THROUGH WEEK'S END. THIS TROUGH ALONG WITH HIGH MOISTURE LEVELS (PW REMAINING AT AROUND 2 INCHES) WILL CONTINUE TO RESULT IN SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS.
THE NEXT SHOT OF RAIN WILL ARRIVE WEDNESDAY AS A COLD FRONT SLIDES ACROSS THE DISTRICT. COOLER THAN NORMAL TEMPERATURES ARE FORECAST THROUGH MIDWEEK BEFORE A WARMING TREND SETS IN FOR THE LATTER HALF OF THE WEEK.
203 AM EDT TUE SEP 15 2015 A LARGE HIGH PRESSURE SYSTEM HAS TAKEN CHARGE OF OUR WEATHER. VERY QUIET WEATHER IS FORESEEN THIS PERIOD, AS AN EXPANSIVE RIDGE SURFACE AND ALOFT BUILDS OVER THE EASTERN STATES, IN RESPONSE TO A PERSISTENT UPPER TROUGH AXIS RESIDING ALONG THE WEST COAST OF THE U. WITH THE RIDGE TEMPERATURES WILL BE WELL ABOVE NORMAL WITH HIGHS WARMING INTO THE UPPER 70S AND LOWER 80S WED AND THU.
109 AM EDT TUE SEP 15 2015 AN UPPER LEVEL AREA OF LOW PRESSURE WILL PULL OUT OF THE REGION OVERNIGHT ENDING THE SHOWER THREAT. UPPER LOW PULLING E INTO NEW BRUNSWICK AND THE LATEST FORECAST HAS SHOWERS ENDING BY 06Z AND THAT STILL LOOKS GOOD ATTM. CONDITIONS WILL BECOME MOSTLY DRY AFTER MIDNIGHT AS THE LOW PROPAGATES EWRD AWAY FROM OUR CWA AND A RIDGE BUILDS IN FROM THE WEST. THE RIDGE WILL BRING MUCH WARMER TEMPS AND MOSTLY SUNNY SKIES TO THE FCST AREA TOMORROW. RIDGING AT ALL LEVELS EXPECTED THROUGH THIS PERIOD BRINGING FANTASTIC LATE SUMMER WEATHER TO MAINE.
1226 AM CDT TUE SEP 15 2015 A FEW MINOR CHANGES WERE MADE TO THE LOW TEMPERATURE FORECAST FOR TONIGHT. WITH A LOW PRESSURE CENTER AT THE CENTRAL BORDER OF MONTANA AND WYOMING AND ANOTHER CENTER OVER WESTERN SOUTH DAKOTA. THE COOL HIGH PRESSURE CENTER WAS OVER ONTARIO NEAR HUDSON BAY. THE SOURCE OF COOLER AIR WITH DEWPOINTS IN THE 40S AND 50S. THIS MORE HUMID AIR WILL BE MOVING NORTHWARD OVER THE TOP OF THE COOLER AIR OVER NORTH DAKOTA. THIS LOW PRESSURE AREA WILL LIFT NORTH AS A WARM FRONT TONIGHT AND TUESDAY BRINGING ANOTHER MILD EVENING TONIGHT AND A WARM DAY ACROSS THE SOUTH TUESDAY. TROUGH.
642 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD INTO THE NORTHEAST THROUGH MUCH OF THE WORK WEEK.
318 AM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY THROUGH LATE WEEK WITH DRY WEATHER AND WARM LATE SUMMER TEMPERATURES.
639 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER AND WARMER TEMPERATURES THROUGH THE WORK WEEK.
SOUTHWEST FLOW ALOFT REMAINS ACROSS THE TEXAS SOUTH PLAINS REGION WITH UPPER LEVEL HIGH PRESSURE STRETCHED FROM NORTHERN MEXICO THROUGH SOUTH TEXAS. THE UPPER RIDGE SHOULD STRENGTHEN SLIGHTLY TODAY WHILE A COUPLE IMPULSES LIFT OUT OF THE INTERMOUNTAIN WEST INTO THE NORTHERN PLAINS. AND ESPECIALLY THE LOWER LEVEL THERMAL AND WIND DIRECTION FIELDS. WE ARE SUSPICIOUS OF THE COOLER MOS TEMPERATURES AND WILL LEAN TOWARDS OUR PREVIOUS FORECAST WHICH IS NOT MUCH DIFFERENT THAN SREF FIELDS. SEVERAL DEGREES WARMER SURFACE TEMPERATURES COULD BE JUST ENOUGH TO GENERATE HIGH- BASED WEAK STORMS AGAIN WITHIN THE SURFACE CONVERGENCE ZONE IN OUR FAR NORTHWEST LATE THIS AFTERNOON. SO IN ADDITION TO RETAINING WARMER TEMPERATURES WE ALSO HAVE ADDED A LOW CHANCE FOR THOSE THUNDERSTORMS IN THE NORTHWEST LATER TODAY.
126 AM EDT TUE SEP 15 2015 A STRENGTHENING UPPER LEVEL RIDGE AND NEARBY AREA OF HIGH PRESSURE WILL ALLOW FOR DRY WEATHER THROUGH THE REMAINDER OF THE WEEK. THE NEXT CHANCE FOR ANY RAIN WILL BE WITH A COLD FRONT SOMETIME OVER THE WEEKEND. THE CLOSED UPPER LEVEL LOW. A FEW PATCHES OF FOG COULD DEVELOP TOWARDS DAYBREAK OVER COOLER VALLEY AREAS AND NEAR BODIES OF WATER. SOME UPPER 40S WILL OCCUR FOR THE HIGH TERRAIN. WITH SOME UPPER 60S OVER THE HIGHER TERRAIN. THE REMAINDER OF THE WORK WEEK WILL BE DRY AS STRONG HIGH PRESSURE ALONG THE EASTERN SEABOARD ONLY RELUCTANTLY GIVES WAY TO A COLD FRONT FROM THE NORTHWEST.
AN UPPER LEVEL TROUGH WILL MAINTAIN COOL AND UNSETTLED WEATHER OVER THE REGION THE NEXT COUPLE DAYS. A SOMEWHAT STRONGER LOW PRESSURE SYSTEM WILL SPREAD RAIN TO WESTERN WASHINGTON WEDNESDAY AFTERNOON AND NIGHT. IR IMAGERY SHOWS A LARGE MASS OF CLOUDS ASSOCIATED WITH A SHORT WAVE TROUGH APPROACHING THE REGION. RAIN IS MORE LIKELY AT THE COAST AT TIMES CLOSER TO THE OFFSHORE TROUGH THROUGH WEDNESDAY MORNING.
335 AM CDT TUE SEP 15 2015 GULF MOISTURE IS RAPIDLY INCREASING THIS MORNING AS LOW LEVEL SOUTHERLY FLOW CONTINUES TO PREVAIL AHEAD OF A LONG WAVE UPPER TROUGH OVER THE WESTERN CONTINENT. HIGHS TODAY WILL BE A DEGREE OR TWO WARMER THAN YESTERDAY. BUT WITH THE INCREASED HUMIDITY IT WILL FEEL MUCH WARMER. AN UPPER LEVEL HIGH WILL BEGIN TO BUILD IN OVER THE REGION TOMORROW WHICH WILL RESULT IN A TEMPORARY RETURN TO SUMMERTIME TEMPERATURES AND DRY WEATHER.
256 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD INTO THE NORTHEAST THROUGH MUCH OF THE WORK WEEK.
THE INFLUENCE OF HIGH PRESSURE WILL BRING ANOTHER PLEASANT AND DRY DAY. HOWEVER WARMER AND CLOSER TO SEASONAL NORMS.
145 AM EDT TUE SEP 15 2015 CANADIAN HIGH PRESSURE WILL BRING LOW HUMIDITY AND COOL NIGHTS THROUGH MID WEEK.
559 AM EDT TUE SEP 15 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVER THE COMMONWEALTH TODAY AND PREVAIL RIGHT INTO THE UPCOMING WEEKEND.
106 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND. A WEAK TROUGH OF LOW PRESSURE WILL DEVELOP OFF THE SOUTHEAST U.
544 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER AND WARMER TEMPERATURES THROUGH THE WORK WEEK.
654 AM EDT TUE SEP 15 2015 A LARGE HIGH PRESSURE SYSTEM HAS TAKEN CHARGE OF OUR WEATHER. AN UPPER LEVEL RIDGE WILL EXTEND THROUGH THE NORTHEASTERN U.
/ISSUED 313 PM CDT MON SEP 14 2015/ OUR DAYS OF BELOW NORMAL TEMPERATURES AND LOW HUMIDITY ARE COMING TO AN END AS THE UPPER LEVEL RIDGE MAKES A RETURN THIS WEEK. INCREASING THE LOW LEVEL MOISTURE ACROSS THE REGION. BUT LOWS WILL WARM OVER THE NEXT FEW DAYS AS THE UPPER LEVEL RIDGE REMAINS IN PLACE.
327 AM CDT TUE SEP 15 2015 A long wave upper level high pressure ridge will be centered over the eastern U. and Canada today with a long wave upper level pressure trough over the west coast. A few weak upper level waves embedded in weak WSW flow aloft between the trough/ridge will bring some upper level cloudiness early in the morning, and possibly approaching west central IL late in the afternoon. but otherwise skies should be quite clear today with dry dewpoints in the low to mid 50s.
STRONG HIGH PRESSURE CONTINUES TO ENCOMPASS MUCH OF THE REGION. WE ARE CURRENTLY LOCATED ON THE LEFT SIDE OF THE HIGH. THE HIGH WILL ONLY TRANSITION SLIGHTLY EASTWARD THROUGH THE NEXT 24 HOURS. EXPECT ANOTHER GOOD RIDGE VALLEY SPLIT TO TAKE FORM OVERNIGHT AS WELL. AN UPPER LEVEL RIDGE WILL BUILD NORTHEAST INTO THE REGION BRINGING A RETURN TO WARM DAYTIME TEMPERATURES THROUGH THE REMAINDER OF THE WORK WEEK. LOW DEWPOINTS WILL PROMOTE LARGE DIURNAL RANGES AND COOL NIGHTS WITH LARGE RIDGE/VALLEY TEMPERATURE DIFFERENCES. A SHEARED OUT COLD FRONT WILL SWING ACROSS THE OHIO AND TENNESSEE VALLEYS OVER THE WEEKEND BRINGING OUR NEXT THREAT FOR SHOWERS.
AN UPPER RIDGE AXIS STRETCHES FROM JUST WEST OF BERMUDA NW ACROSS THE MID ATLANTIC STATES. WE WILL SEE WARM DAYTIME TEMPS CONTINUE AS AN UPPER HIGH BEGINS TO BUILD OVER TX AND THE RIDGE AXIS BUILDS OUR WAY BY THE END OF THE WEEK. AFOREMENTIONED UPPER RIDGE AXIS WILL BECOME SUPPRESSED TO THE SOUTH OVER THE WEEKEND.
330 AM PDT TUE SEP 15 2015 A TROUGH OF LOW PRESSURE WILL BRING CLOUDY SKIES AND SHOWERS ALONG WITH BELOW NORMAL TEMPERATURES TODAY. TROF AXIS IS RIGHT ALONG THE SBA/VTA BORDER. A SMALL VORT LOBE ASSOC WITH THIS TROF IS CREATING NUMEROUS SHOWERS ACROSS THE EASTERN VTA COUNTY AND WESTERN LA COUNTY. ONLY SCATTERED SHOWER ACTIVITY IS OCCURING TO THE WEST OF THE TROF OVER SBA AND SLO COUNTIES. THIS MORNING WILL SEE THE BEST SHOWER ACTIVITY AND THEN AS THE TROF SLOWLY MOVES EASTWARD THE SHOWER ACTIVITY WILL DIMINISH FROM THE NW TO THE SE. THERE WILL BE SOME GUSTY WESTERLY WINDS USHERED IN BEHIND THE TROF. MAX TEMPS TODAY WILL BE COOLER THAN IT HAS BEEN BUT STILL ON THE WARM SIDE FOR A RAINY DAY.
344 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES TODAY THROUGH WEDNESDAY.
240 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH LATE WEEK.
250 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER FOR THE REST OF THE WEEK. MAINLY CLEAR SKIES AND DRY WEATHER ARE EXPECTED TODAY UNDER A HIGH PRESSURE RIDGE. PERSISTENT RIDGING ACROSS THE MID ATLANTIC AND NORTHEAST CONUS REGION IS EXPECTED TO KEEP DRY AND WARM WEATHER ACROSS THE REGION. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
340 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD OVER THE MID-ATLANTIC AND REMAIN OVER THE AREA THIS WEEK.
ISSUED BY NATIONAL WEATHER SERVICE ALBANY NY 104 PM EDT TUE OCT 6 2015 HIGH PRESSURE WILL MOVE EAST OF NEW ENGLAND THIS AFTERNOON ALLOWING A WEAK COLD FRONT TO MOVE ACROSS THE NORTH COUNTRY ON WEDNESDAY.
MOSTLY SUNNY SKIES WILL CONTINUE IN THE INTERIOR TODAY AS HIGH PRESSURE ALOFT REMAINS OVER THE REGION. AN UPPER LEVEL RIDGE WILL REMAIN OVER NORTHERN CALIFORNIA AND KEEP CONDITIONS WARM. A LARGE MEAN TROUGH ACROSS THE NORTH PACIFIC IS FORECAST TO GRADUALLY DIG THROUGH THE WEEK. HOWEVER BY THE WEEKEND THE UPPER RIDGE MAY FLATTEN OUT SLIGHTLY ALLOWING A WEAK FRONT TO PROEGATE ACROSS THE NORTH COAST. WITH A WEAK GRADIENT IN PLACE AND RIDGING ALOFT.
HIGH PRESSURE WILL BUILD OVER THE AREA ALLOWING FOR DRY CONDITIONS ALONG WITH A WARMING TREND THROUGH THE REMAINDER OF THE WEEK.
305 PM EDT TUE OCT 6 2015 HIGH PRESSURE WEAKENS OVER NORTHERN NEW ENGLAND THROUGH EARLY WEDNESDAY. A COLD FRONT WILL MOVE SOUTH OUT OF CANADA ON WEDNESDAY AND WILL MOVE OFFSHORE WEDNESDAY NIGHT.
High pressure today will maintain pleasant conditions across the region through tonight. As the ridge flattens tomorrow, forecast models are becoming more aggressive with a weather system moving in under northwest flow with an upper level jet nosing into the region. Wednesday afternoon into Wednesday night seems to be the main focus for precipitation, with current indications showing central Idaho and west central Montana seeing the highest potential for precipitation. Otherwise, cloudy and cooler conditions can be expected.
218 PM CDT TUE OCT 6 2015 THE CENTRAL PLAINS SITS IN THE RIDGE BETWEEN TWO UPPER TROUGHS ALONG THE SOUTHEAST AND SOUTHWEST AREAS OF THE CONUS. WEAK HIGH PRESSURE IS AT THE SURFACE OVER EASTERN KANSAS CAUSING LIGHT WINDS ACROSS THE AREA.
111 PM CDT TUE OCT 6 2015 THE 08Z MSL PLOT SHOWS A QUASI-STATIONARY FRONT ON THE HIGH PLAINS FROM SOUTHWEST SOUTH DAKOTA ACROSS EASTERN WYOMING TO A LOW IN SOUTHEAST COLORADO. 9 MICRON IMAGERY SHOWED A BROAD BAND OF LIQUID CLOUDS FROM THE PINE RIDGE AREA TO NORTH PLATTE. RETURN FLOW AS THE COLORADO LOW LIFTS NORTH GENERATES A MOISTURE TRAJECTORY ON THE HIGH PLAINS. THE MOISTURE TRANSPORT VECTORS PAINT A CIRCUITOUS TRAJECTORY FROM THE TEXAS GULF COAST THROUGH NEW MEXICO AND THE HIGH PLAINS INTO WESTERN NEBRASKA WHERE IT IS LIFTED ISENTROPICALLY INTO THE NEBRASKA PANHANDLE AND THE WESTERN SANDHILLS. WEDNESDAY INTO WEDNESDAY NIGHT A WEAK COLD FRONT WILL WORK ACROSS THE AREA.