Aikyam-Lab/Synoptic-Bench huggingface dataset:
WITH CUTOFF UPPER LOW SLOWLY DRIFTING OVER NORTHERN MEXICO AND WILL BECOME STNRY OVER SOUTH TX LATER THIS WEEK. REGIONS OF INTENSE UPPER DIFFLUENCE WILL OCCUR ON THE NORTHEAST SIDE OF THIS UPPER LOW. DESPITE DEEP SOUTH FLOW AROUND UPPER LOW.
151 PM CST WED MAR 9 2016 Strong upper level low pressure area centered in southwestern Mexico will slowly shift east into eastern Mexico through Thursday. This precipitation courtesy of mid level energy rotating northward around the upper low.
Periods of rain are still expected, however the higher rainfall totals for our neck of the woods are now focused on south central Missouri (in particular Shannon/Howell/Oregon/Ozark counties).
THE UPPER LEVEL LOW BRINGING IN HIGH CLOUDS TO THE REGION HAS TAKEN A TRACK FAR ENOUGH SOUTH THAT ANY PRECIPITATION PRODUCING SHOWERS OR THUNDERSTORMS SHOULD REMAIN MOSTLY SOUTH AND EAST OF THE TEXAS PANHANDLE REGION. CIG SHOULD INCREASE TO AOA 20K FT AGL AS CLOUDS FROM AN UPPER LOW WELL TO THE SOUTH MOVES TO THE EAST OF THE TERMINALS. WINDS ARE EXPECTED TO REMAIN LIGHT AOB 10 KTS THRU 10/09Z BECOMING NORTHERLY BTWN 10 TO 20 KTS AS LOW PRESSURE SYSTEM PASSES TO THE EAST OF THE TAF SITES. THE UPPER-LEVEL LOW PRESSURE SYSTEM OVER NORTHERN MEXICO HAS TAKEN A FAR ENOUGH SOUTH TRACK THAT. THE MAIN DEFORMATION ZONE ASSOCIATED WITH THE UPPER LEVEL LOW SHOULD KEEP MAINLY SOUTH AND EAST OF THE PANHANDLES AS THE LOW LIFTS NORTHWARD THIS WEEKEND.
THE UPPER RIDGE MOVES INTO THE WESTERN ATLANTIC SOME ON THURSDAY AS AN UPPER LOW PRESSURE SYSTEM MOVES OVER THE MEXICO-DEEP S TX AREA. OVERALL CONFIDENCE IS MEDIUM TO HIGH BDL A STRONG UPPER RIDGE WILL CONTINUE TO DOMINATE THE EASTERN STATES THROUGH THE END OF THE WEEK. WHILE A CLOSED UPPER LOW REMAINS OVER TX.
Surface frontal boundary has exited the area this morning as high pressure builds in from the northwest. Some of this low level moisture has tried to form into a very low stratus deck. The only exception to that would be if the lingering boundary layer moisture forms into a stratus deck as the low level lapse rates begin to steepen. Highs today reach the lower 60s despite the high cloud cover that lingers through out the day.
TONIGHT THE SHOWERS HAVE STAYED WEST OF ALABAMA TODAY DUE TO A STRONG UPPER RIDGE OVER THE SOUTHEAST STATES.
It does appear some increasing high clouds will be possible late day, however based on the expected sunshine this afternoon and only a couple of degrees increase in temperatures in the 900mb to 850mb level between 00z Wednesday and 00z Thursday the highs today have the potential to climb into the low to mid 60s.
BUT WITH LIGHT WINDS AND HIGHS IN THE LOWER 50S TO LOWER 60S.
A BREAK IN THE LOW CLOUDS OVER A GOOD PORTION OF SOUTHEAST AND PORTIONS OF SOUTH CENTRAL WISCONSIN HAS ALLOWED VERY WARM TEMPERATURES. LEFT OUT FOG MENTION WITH THE CLOUDS AND COOLER/DRIER AIR MOVING INTO THE AREA. GRADUAL COLD AIR ADVECTION SHOULD BRING COOLER. TO THE LOWER TO MID 50S ELSEWHERE.
LARGE HIGH PRESSURE WAS CENTERED ALONG THE SOUTHEAST COAST. WITH A LARGE AREA OF LOW PRESSURE OVER MEXICO AND TX. TEMPERATURES WERE ALREADY IN THE LOWER 70S AT MOST LOCATIONS. THESE AREAS WILL STAY MOSTLY CLOUDY WITH HIGHS LIMITED TO THE LOWER 70S. A SERIES OF DISTURBANCES FROM LARGER UPPER LOW WILL SWING THROUGH EASTERN AR AND WESTERN TN.
201 PM EST WED MAR 9 2016 WARM AND DRY UNDER HIGH PRESSURE. BUT THAT WILL CHANGE AS A COLD FRONT SWEEPS THROUGH THE REGION THURSDAY AFTERNOON/NIGHT.
131 PM EST WED MAR 9 2016 HIGH PRESSURE WILL MAINTAIN DRY AND WARM WEATHER UNTIL A COLD FRONT BRINGS RAIN TONIGHT THROUGH THURSDAY NIGHT. THE UPR LVL RIDGE ACRS THE ERN CONUS IS PROGGED TO MOVE E TONIGHT. WITH THE HIGHEST CHCS W-N OF PIT. AS THE MAIN UPPER LEVEL TROUGH DIGS INTO THE EASTERN GREAT LAKES.
Short range models indicate an upper level ridge of high pressure in the Southern Rockies and Desert Southwest amplifying northward as it moves eastward into the Western High Plains tonight and pushing further east into the Central Plains Friday. Seasonal temperatures are likely again tonight will little change expected to the air mass across the high plains of western Kansas. Hot temperatures can be expected Friday as a prevailing southeasterly flow helps reinforce the much warmer air mass across the region.
ALSO, AN UPPER-LEVEL LOW PRESSURE SYSTEM NOW LOCATED ALONG ALBERTA/SASKATCHEWAN BORDER MAY BRING ANOTHER SHOWER OR THUNDERSTORM TO NORTHERN SECTIONS OF HILL/BLAINE COUNTY BETWEEN NOW AND MIDNIGHT BEFORE THE SYSTEM EXITS EASTWARD TONIGHT. THE LOW PRESSURE SYSTEM OVER SOUTHERN SASKATCHEWAN AT 05Z WILL CONTINUE TO MOVE EAST OF THE AREA THROUGH THE PERIOD.
STRONG MID/UPPER LEVEL RIDGE CENTER IS BECOMING ESTABLISHED OVER N/NE TEXAS WITH HOT DAYTIME TEMPERATURES PROG TO PREVAIL.
HIGH PRESSURE WILL CONTINUE TO SHIFT WELL EAST OF THE AREA THIS WEEKEND.
428 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL REMAIN IN PLACE THROUGH MUCH OF THE WEEKEND BRINGING SEASONABLE TEMPERATURES. A LOW PRESSURE SYSTEM WILL APPROACH THE REGION BRINGING INCREASING CHANCES OF SHOWERS AND THUNDERSTORMS. AT THE SURFACE THIS MORNING AN AREA OF HIGH PRESSURE STRETCHES FROM THE CENTRAL GREAT LAKES REGION TO NEW ENGLAND. SOUTH OF THIS FEATURE AN AREA OF LOW PRESSURE IS BEARING DOWN ON THE SOUTHEAST. WITH THE CENTER OF THE LOW NEAR THE VA/NC BORDER.
HIGH TEMPS SHOULD TOP OUT IN THE LOW 80S IN MOST AREAS, WITH SOME MID 80S POSSIBLE IN THE IL RIVER VALLEY.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW DRY WEATHER IS EXPECTED TODAY THROUGH SATURDAY AS WEAK HIGH PRESSURE OVER ILLINOIS AND THE GREAT LAKES SAGS SOUTHEAST ACROSS INDIANA.
116 AM EDT FRI AUG 7 2015 AVIATION HIGH PRESSURE WILL CONTINUE TO PRODUCE FAIR WEATHER WITH SEASONABLE TEMPERATURES TONIGHT THROUGH FRIDAY.
HAVE FORECAST HIGH TEMPERATURES TODAY JUST A TOUCH WARMER THAN YESTERDAY.
256 AM EDT FRI AUG 7 2015 DRY LAYER OVER SOUTH FLORIDA WILL CONTINUE TODAY AND SATURDAY AS HIGH PRESSURE DOMINATES. COLD FRONT TO THE NORTH WILL BRING BETTER RAIN CHANCES TO NORTHERN FLORIDA DURING THIS TIME.
An upper level ridge centered near north Texas this morning is expected to slowly migrate eastward through tonight. Sinking air underneath this upper level high pressure will continue to keep skies mainly clear and temperatures hot through the next 24 hours. At the surface, persistent lee troughing along the eastern slopes of the Rocky Mountains will keep low level flow out of the south. This means highs of 103 degrees or warmer for areas generally north of the Interstate 10 corridor. And farther south along the I-10 corridor, temperatures have remained 102 or cooler, just below the Heat Advisory criteria. A strong upper level high pressure ridge will dominate the weather pattern and continue to bring hot and dry conditions to West Central Texas during the next 7 days.
556 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL BRING DRY AND PLEASANT WEATHER THROUGH THE FIRST HALF OF THE WEEKEND. HIGHS WILL BE AROUND 80 DEGREES UNDER PARTLY CLOUDY SKIES WITH OVERNIGHT LOWS IN THE LOW 60S.
1101 PM MDT THU AUG 6 2015 THE TUG OF WAR BETWEEN THE WEST COAST UPPER LOW AND THE WEST TEXAS UPPER HIGH CONTINUES. SW GRADIENT WIND STRENGTHENS BETWEEN THE CA LOW AND THE WEST TEXAS RIDGE. COOLER TEMPERATURES ARE EXPECTED FRIDAY NIGHT. SATURDAY THE LOW LIFTS THROUGH THE NORTHERN ROCKIES AND THE JET LIFTS THROUGH NW COLORADO.
THIS COMBINED WITH UPPER HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL BRING ANOTHER HOT WEATHER DAY. GFS SHIFTS UPPER RIDGE INTO ARKLATEX REGION THIS WEEKEND. GFS/ECMWF ARE FORECASTING A MORE AMPLIFIED PATTERN WITH UPPER HIGH SHIFTING FURTHER WEST. AND AN IMPRESSIVE UPPER TROUGH DIGGING OVER THE EASTERN U.
EARLY MORNING GOES WATER VAPOR IMAGERY SHOWED AN UPPER LEVEL RIDGE CENTERED OVER TX. NEAR THE NORTHEAST PERIPHERY OF THE RIDGE. THE AFOREMENTIONED UPPER RIDGE WILL PUSH EAST TONIGHT.
ISOLATED DIURNAL THUNDERSTORMS MAY DEVELOP ALONG LEE TROUGH AXIS/OUTFLOW INTERSECTION FROM WESTERN NEBRASKA INTO FAR WESTERN KANSAS LATE THIS AFTERNOON INTO EARLY EVENING. AN IMPRESSIVE INSTABILITY AXIS (MLCAPES 3000-4000 J/KG) IS ALIGNED ALONG A WARM FRONT THIS AFTERNOON. AS ISENTROPIC LIFT STRENGTHENS IN ASSOCIATION WITH THE LOW-LEVEL JET.
AS ADVERTISED THE CENTER OF THE DEEP LAYERED EXPANSIVE HIGH PRESSURE RIDGE TO SETTLE OVER NORTH TEXAS TODAY AND SIT TIGHT ON SATURDAY. THE DRIER AIR WILL BE MORE EFFICIENT TO HEAT AND MODELS CONCUR WITH SLIGHTLY HIGHER 850MB TEMPS AND SLIGHTLY HIGHER THICKNESS VALUES AS THE RIDGE DEEPENS IT GRIP ON THE CWA SATURDAY. DIURNAL WIND CONDITIONS PERSIST IN THE BREEZY RANGE EACH AFTERNOON AND EARLY EVENING WITH THE THERMAL LOW OVER THE SIERRA MADRE COMBINING WITH THE RELATIVELY COOLER GULF WATERS.
108 AM EDT FRI AUG 7 2015 A COLD FRONT WILL APPROACH FROM THE WEST TODAY AND MOVE OFFSHORE TONIGHT.
AN UPPER LOW. THESE SHOWERS AND THUNDERSTORMS ARE FORECAST TO SLOWLY SHIFT EAST WITH THE EASTWARD PROGRESSION OF THE UPPER LOW. THE UPPER LOW IS FORECAST TO LIFT SLOWLY NORTHEAST. THE UPPER LOW IS FORECAST TO LIFT NORTHEAST INTO NORTHERN NEVADA BY THE EVENING HOURS WITH CENTRAL CALIFORNIA LEFT IN AN UPPER LEVEL NORTHWEST FLOW. TEMPERATURES ACROSS THE SAN JOAQUIN VALLEY ARE FORECAST TO WARM INTO THE LOW TO MID 90S. LITTLE CHANGE IN THE WEATHER PATTERN THROUGH AT LEAST NEXT FRIDAY AS AN UPPER LOW MOVES SLOWLY SOUTH FROM THE BRITISH COLUMBIA COASTLINE OVER THE WEEKEND TOWARD THE PACIFIC NORTHWEST COASTLINE BY THE FIRST PART OF THE WEEK. AT THE SAME TIME UPPER LEVEL HIGH PRESSURE OVER TEXAS WILL BEGIN TO SLOWLY SHIFT WEST.
HOWEVER THE LOWER LEVELS ARE LITTLE LESS IMPRESSIVE WITH THE 850 LLJ FOCUSED TO THE WEST OF THE AREA.
407 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL BRING DRY AND PLEASANT WEATHER THROUGH THE FIRST HALF OF THE WEEKEND. HIGHS WILL BE AROUND 80 DEGREES UNDER PARTLY CLOUDY SKIES WITH OVERNIGHT LOWS IN THE LOW 60S.
THE MID LEVEL RIDGE AXIS WILL SLIDE OVERHEAD TODAY AND TOMORROW. THE COMBINATION OF THE HIGH DEWPOINTS WITH THE FRONT IN THE AREA. WITH A DEEP TROUGH DEVELOPING OVER THE EASTERN CONUS.
A COLD FRONT WILL CROSS EASTERN PARTS OF THE MID STATE BY SUNRISE, WITH ISOLATED SHOWERS DIMINISHING ALONG THE CUMBERLAND LATER TONIGHT.
206 AM EDT FRI AUG 7 2015 AN UPPER TROUGH AND INCREASING MOISTURE WILL LEAD TO GREATER PRECIPITATION CHANCES TODAY INTO FRIDAY. THE RAIN HAS ALREADY COOLED TEMPERATURES INTO THE LOWER TO MIDDLE 70S FOR MOST LOCATIONS AND EXPECT LITTLE CHANGE THROUGH DAYBREAK. STRONG SHORT WAVE TROUGH MOVING THROUGH THE REGION DURING THE MORNING. MODELS INDICATE UPPER RIDGE WILL SHIFT BACK TO THE WEST SOME. WITH UPPER TROUGH DEEPENING OVER THE E CONUS. UPPER TROUGH AXIS REMAINS TO THE WEST AND WILL CROSS THE AREA LATER THIS MORNING. ONCE THE TROUGH AXIS PASSES BY THE THREAT FOR PRECIPITATION AND RESTRICTIONS SHOULD DIMINISH. WINDS WILL PICK UP FROM THE WEST AROUND 10 KNOTS AFTER 15Z THEN A WEAK COLD FRONT WILL CROSS THE REGION AND WINDS WILL SHIFT TO THE NORTHWEST.
HIGH PRESSURE WILL BUILD BACK INTO THE AREA FRIDAY AND INTO THE WEEKEND.
LOW PRESSURE MOVING THROUGH NORTHEAST SOUTH DAKOTA IN CENTRAL MINNESOTA THIS AFTERNOON. ALONG AND AHEAD OF THIS LOW PRESSURE A WARM FRONT HAS LIFTED NORTHEAST OF THE CWA WHILE TO THE SOUTHWEST OF THE LOW A BOUNDARY WAS SHIFTING EAST THROUGH CENTRAL SD AN INTO THE WESTERN CWA. FRIDAY SHOULD BE A PRETTY NICE DAY WITH WINDS GENERALLY UNDER 15 MPH AND SEASONAL HUMIDITY WITH DEW POINTS IN THE LOWER TO MID 60S.
628 AM EDT FRI AUG 7 2015 OTHER THAN A FEW LINGERING SHOWERS ALONG THE RIDGES TODAY. MOST OF THE LOW CLOUD COVER HAS DISSIPATED AS WELL. MOST OF THE HIGH-RES MODELS LINGER MOISTURE IN THIS AREA THROUGH THE DAY WITH LOW LEVEL EASTERLY FLOW. WITH SOME HIGH CLOUDS POSSIBLY SPILLING OVER THE APPROACHING H500 RIDGE. CL HIGH PRESSURE WILL KEEP THE WEEKEND MOSTLY DRY. SAVE FOR A DIURNALLY DRIVEN SHOWER OR TWO IN THE HIGH TERRAIN.
LOWER CLOUD AGAIN SOMEWHAT OF A CONCERN FOR TEMPS TODAY BUT FEEL ENOUGH MIXING AND SHALLOW NATURE OF MOISTURE SHOULD STILL BRING HIGHS INTO THE LOWER TO MIDDLE 90S AND APPARENT TEMPS TO NEAR 100. LEE LOW PRESSURE DEVELOPING OVER NORTHEASTERN COLORADO AHEAD OF THE FOUR CORNERS WAVE SHOULD BE ENOUGH FOR THUNDERSTORM DEVELOPMENT THERE LATE THIS AFTERNOON. UPPER RIDGE TRANSLATING INTO THE AREA SHOULD KEEP MUCH OF THIS ACTIVITY NORTH OF EASTERN KANSAS TONIGHT. MORNING CONVECTION MAY BE ONGOING ACROSS A GOOD PORTION OF THE FORECAST AREA ESPECIALLY UP NEAR THE NEBRASKA BORDER AS UPPER TROUGH AXIS MOVES THROUGH THE CENTRAL PLAINS ATOP OF THE CENTRAL CONUS RIDGE. OVERALL UPPER PATTERN WITH A TROUGH IN THE WEST AND RIDGE IN THE CENTRAL CONUS WILL START THE PERIOD.
THE LOW WILL TRIGGER SCATTERED CONVECTION AHEAD OF IT THIS EVENING. LOWEST CONFIDENCE IN SEEING THE RAIN IS OVER THE MINNESOTA ARROWHEAD AS LATEST HIGH RESOLUTION MODELS ARE SHOWING A MORE SOUTHERN TREND OF THE LOW TRACK. THE BEST CHANCE FOR RAIN IN THE ARROWHEAD WILL BE FRIDAY AS THE TROUGH AXIS PASSES BY. THE WEEKEND PATTERN STARTS OUT RATHER WET WITH AN UPPER LOW SLOWLY ROLLING ACROSS THE INTERNATIONAL BORDER. AND A COLD FRONT LAGGING BEHIND IT.
341 AM CDT FRI AUG 7 2015 AT H5 UPPER RIDGE CENTERED OVER TEXAS WITH WEAK RIDGING INTO NORTHERN PLAINS. THIS RIDGE IS BEING KNOCKED DOWN BY CLOSED LOW ALONG THE CANADIAN BORDER. TROUGH OVER THE CAROLINAS AND NORTHERN FLORIDA. CLOSED LOW MOVING ONSHORE IN CENTRAL CALIFORNIA WITH MOISTURE STREAMING NORTH ALONG MEXICAN COAST ON THE BACKSIDE OF THE RIDGE WRAPPING INTO LOW OVER CALIFORNIA. STRONG TO SEVERE STORMS EXPECTED TO CONGEAL INTO MCS AND SHIFT EAST WITH THE LOW LEVEL JET AND UPPER FORCING. WILL MAINTAIN THE HIGHEST POPS DURING THIS TIME PERIOD ACROSS NORTHWEST NEBRASKA.
130 AM EDT FRI AUG 7 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA EARLY TODAY BEFORE MOVING OFFSHORE THIS WEEKEND. HIGH PRESSURE WILL MOVE INTO THE AREA BEHIND THE DEPARTING LOW. TO THE LOWER 60S IN THE SE. A LONG WAVE TROUGH WILL BE MOVING OFF THE EAST COAST WITH DIVERGENT DRIER FLOW OVER THE REGION FRIDAY NIGHT INTO SATURDAY. THE EC AND THE GFS DIVERGE MID WEEKEND AS THE EC DEEPENS THE TROUGH AS PROGRESSES A SECONDARY LOW THROUGH THE NORTHERN GREAT LAKES.
411 AM CDT FRI AUG 7 2015 FRONTAL BOUNDARY LYING ACROSS NORTHERN TEXAS PANHANDLE AT THIS TIME EXPECTED TO LIFT NORTHWARD AS A WARM FRONT TODAY. HEAT CONTINUES ON SATURDAY WITH CHANCES FOR THUNDERSTORMS RETURNING TO NORTHWEST PART OF FORECAST AREA SATURDAY AFTERNOON AND EVENING AS NEXT COLD FRONT MOVES INTO THOSE LOCALES.
322 AM EDT FRI AUG 7 2015 AN UPPER TROUGH AND PLENTIFUL MOISTURE WILL LEAD TO CONTINUED PRECIPITATION CHANCES TODAY. DRIER ATMOSPHERE FOR SATURDAY AS WEAK HIGH PRESSURE BUILDS IN FROM THE WEST. MODELS INDICATE UPPER RIDGE WILL SHIFT BACK TO THE WEST SOME. WITH UPPER TROUGH DEEPENING OVER THE E CONUS. UPPER TROUGH AXIS REMAINS TO THE WEST AND WILL CROSS THE AREA LATER THIS MORNING. ONCE THE TROUGH AXIS PASSES BY THE THREAT FOR PRECIPITATION AND RESTRICTIONS SHOULD DIMINISH. WINDS WILL PICK UP FROM THE WEST AROUND 10 KNOTS AFTER 15Z THEN A WEAK COLD FRONT WILL CROSS THE REGION AND WINDS WILL SHIFT TO THE NORTHWEST.
HIGHS MAY STRUGGLE TO CLIMB OUT OF THE LOW 90S GIVEN RECENT RAIN/WET GROUND AND AN EASTERLY COMPONENT TO THE LOW LEVEL WINDS HELPING TO MAINTAIN HIGHER DEWPOINT TEMPERATURES/RELATIVE HUMIDITY VALUES. STORM ACTIVITY DRIFTING EASTWARD OFF THE HIGH PLAINS MAY IMPACT PORTIONS OF CENTRAL KS LATE TONIGHT AND MAINTAINED LOW POPS TO ACCOUNT FOR THIS SCENARIO.
AXIS OF THE UPPER-LEVEL TROF IS WELL SOUTH AND EAST BY FRIDAY MORNING. WITH RESIDUAL MOISTURE HOLDING IN ALONG THE SOUTHEAST RIDGES. LOW PRESSURE WILL MOVES OFF THE NEW ENGLAND COAST THROUGH THE PERIOD WITH WEAK HIGH PRESSURE ACROSS THE REGION.
THE SAL WILL GRADUALLY ERODE FRI-SAT BUT RESIDUAL DRY AIR LOOKS TO REMAIN ACROSS SOUTH FL WHILE A TROUGH DIGS SOUTHEASTWARD. THE TROUGH AND MOISTURE WILL GRADUALLY SAG SOUTH WHILE BECOME DIFFUSE. A RIDGE BUILDS OUT WEST WITH AN AMPLIFYING TROUGH ALONG THE EASTERN U.
Another mid level wave will round the apex of the trough and should be the final impulse to get a round of storms to form in the vicinity of the surface triple point, which should be somewhere in northeast Kansas or southeast Nebraska.
THIS BOUNDARY IS EXPECTED TO SAG TO THE SOUTHEAST AS LOW PRESSURE TRAVERSES FROM TENNESSEE/KENTUCKY TOWARD THE CAROLINA COAST THROUGH TONIGHT.
STRONG UPPER LOW ACROSS SOUTHERN CANADA WILL CONTINUE TO PROPAGATE EASTWARD. WHICH IS CLOSER TO THE UPPER LOW.
AN UPPER LEVEL LOW MOVING INLAND ALONG THE CENTRAL CALIFORNIA COAST WILL RESULT IN SCATTERED SHOWERS AND THUNDERSTORMS OVERNIGHT.
135 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL DOMINATE OUR WEATHER FOR THE NEXT SEVERAL DAYS BRINGING DRY CONDITIONS AND COMFORTABLE TEMPERATURES.
LOW PRESSURE AND A COLD FRONT WILL PUSH TO OUR SOUTHEAST TODAY AND TONIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION THIS WEEKEND. THIS IS SUPPORTED BY THE LATEST WATER VAPOR SATELLITE THAT SHOWS THE SHORT WAVE TROUGH AXIS AND INFLECTION POINT NOW MOVING ACROSS OUR NW ZONES. LOW PRESSURE WAS NOTED JUST WEST OF KRDU. AND FALLING LOW LEVEL THICKNESSES BEHIND THE FRONT WILL RESULT IN COOLER TEMPS. AND ON SATURDAY WILL CROSS THE MID ATLANTIC REGION WHILE DROPPING INTO THE BASE OF THE L/W TROUGH OFF THE EAST COAST. NE LOW LEVEL FLOW WILL KEEP TEMPS A FEW DEGREES COOLER THAN NORMAL. THEN AS HIGH PRESSURE BUILDS TO OUR NORTH SATURDAY NIGHT. LOOK FOR DECREASING CLOUDINESS AND COOLER TEMPS.
WHILE AN UPPER LEVEL TROUGH IS SLATED TO MOVE WEST-EAST ACROSS SOUTHERN CANADA THIS WEEKEND. WORKING WITH THE LOW LEVEL JET/MOISTURE TRANSPORT TO FIRE A THUNDERSTORM COMPLEX OVER THE CENTRAL PLAINS LATE TONIGHT.
404 AM EDT FRI AUG 7 2015 OTHER THAN A FEW LINGERING SHOWERS ALONG THE RIDGES TODAY. MOST OF THE LOW CLOUD COVER HAS DISSIPATED AS WELL. MOST OF THE HIGH-RES MODELS LINGER MOISTURE IN THIS AREA THROUGH THE DAY WITH LOW LEVEL EASTERLY FLOW. WITH SOME HIGH CLOUDS POSSIBLY SPILLING OVER THE APPROACHING H500 RIDGE. CL HIGH PRESSURE WILL KEEP THE WEEKEND MOSTLY DRY. SAVE FOR A DIURNALLY DRIVEN SHOWER OR TWO IN THE HIGH TERRAIN.
OVER THE HIGHER TERRAIN WILL KEEP IN SCT TSTMS FOR THIS AFTN AS SUBTROPICAL MOISTURE INCREASES. AS FOR HIGHS 850-700 TEMPS CHANGE LITTLE FROM THU SO READINGS OVER NERN CO MAY STILL RISE BACK INTO THE LOWER TO MID 90S. OVER THE HIGHER TERRAIN WITH PRECIPITABLE WATER VALUES CONTINUING TO RISE OVERNIGHT MAY SEE SOME LINGERING SHOWERS AND A FEW TSTMS. A WETTER THAN NORMAL PERIOD APPEARS TO BE SHAPING UP FOR COLORADO AS UPPER LEVEL RIDGING IS GOING TO BE ACCOMPANIED BY A DECENT PLUME OF SUB-TROPICAL MOISTURE.
WITH HIGHER READING IN THE HIGHER ELEVATIONS. CONFIDENCE IS INCREASING THAT A FEW SEVERE STORMS ARE POSSIBLE EAST OF THIS CHEYENNE TO CHADRON LINE AS STORMS DEVELOP ALONG THE BOUNDARY AND TAP INTO THE HIGHER MOISTURE AND SHEAR.
THE UPPER LEVEL LOW WILL CONTINUE TO MOVE EAST TOWARD THE EASTERN SEABOARD THROUGH THE REST OF THE AFTERNOON.
120 AM EDT FRI AUG 7 2015 A RIDGE OF HIGH PRESSURE SETTLING INTO THE GREAT LAKES REGION TONIGHT WILL PROVIDE DRY CONDITIONS ALONG WITH PARTLY CLOUDY SKIES TONIGHT. AN UPPER LEVEL LOW TRACKING ACROSS FAR NORTHERN KENTUCKY AND SOUTHWEST OHIO WILL CONTINUE EASTWARD THIS EVENING. THIS TROF WILL ATTEMPT TO TOP THE UPPER LEVEL RIDGE AS THE RIDGE BUILDS NORTHEAST. THE TROF SHOULD THEN MOVE INTO THE FORECAST AREA LATE FRIDAY. THE UPPER LEVEL RIDGE AXIS SHOULD BECOME REESTABLISHED OVER THE FRONT RANGE FROM COLORADO WELL NORTH INTO THE CANADIAN INTERIOR. WITH AN UPPER LEVEL TROF BECOMING MORE AMPLIFIED FROM HUDSON BAY INTO THE UPPER GREAT LAKES.
ANY APPRECIABLE INSTABILITY BOTTLED UP NEAR/SOUTH OF 850MB WARM FRONT. GFS/ECMWF ARE LESS BULLISH WITH THE LOW LEVEL MOISTURE RETURN.
A FEW ISLD SHOWERS ARE LINGERING OVER CENTRAL KY MAINLY EAST OF I-65 BEHIND THE DEPARTING LOW PRESSURE SYSTEM. AFTERNOON HIGH TEMPS SHOULD STAY IN THE LOWER 80S IN THE SLIGHTLY COOLER AIRMASS WITH PLENTIFUL CLOUDS DURING THE FIRST HALF OF THE DAY. LOW TEMPS SHOULD RANGE THROUGH THE LOW TO MID 60S. SATURDAY SKIES SHOULD BE MOSTLY SUNNY TO PARTLY CLOUDY WITH HIGH TEMPS REBOUNDING INTO THE LOW TO MID 80S.
310 AM CDT FRI AUG 7 2015 WEAK RIDGING ACROSS THE PLAINS TODAY WILL RESULT IN DRY AND WARM CONDITIONS WITH READINGS IN THE UPPER 80S TO LOWER 90S. THIS ACTIVITY SHOULD MOVE EASTWARD INTO OUR FORECAST AREA MOSTLY AFTER MIDNIGHT TONIGHT AS THE LOW LEVEL JET VEERS THROUGH DAYBREAK.
648 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL DOMINATE OUR WEATHER THROUGH THE WEEKEND BRINGING DRY CONDITIONS AND COMFORTABLE TEMPERATURES.
HIGHS WILL REACH INTO THE LOWER 90S WEST OF PLATEAU ON SATURDAY.
231 AM EDT FRI AUG 7 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA EARLY TODAY BEFORE MOVING OFFSHORE THIS WEEKEND. HIGH PRESSURE WILL MOVE INTO THE AREA BEHIND THE DEPARTING LOW. TO THE LOWER 60S IN THE SE. A LONG WAVE TROUGH WILL BE MOVING OFF THE EAST COAST WITH DIVERGENT DRIER FLOW OVER THE REGION FRIDAY NIGHT INTO SATURDAY. THE EC AND THE GFS DIVERGE MID WEEKEND AS THE EC DEEPENS THE TROUGH AS PROGRESSES A SECONDARY LOW THROUGH THE NORTHERN GREAT LAKES.
423 AM EDT FRI AUG 7 2015 AN ACTIVE PATTERN IS EXPECTED TODAY AS A MID LEVEL TROUGH PIVOTS ACROSS THE REGION. WITH THE HIGHEST GUSTS EXPECTED ACROSS INLAND PORTIONS OF SE GA. A TONGUE OF DRIER AIR ALOFT WILL QUICKLY ROTATE AROUND THE BACK SIDE OF THE TROUGH AND INTO SE GA BY LATE THIS AFTERNOON.
700 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION.
AS THE OFFSHORE UPPER LOW CONTINUES ITS TREK INLAND TODAY. THEY SHOULD BE ABOUT HALF OF THAT BY 00Z WITH THE HIGHEST AMOUNTS CONFINED TO EASTERN ARIZONA.
602 AM EDT FRI AUG 7 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA TODAY BEFORE SLIDING OFF THE VIRGINIA COAST THIS AFTERNOON MOVING OFFSHORE THIS EVENING. HIGH PRESSURE WILL RIDGE INTO THE AREA BEHIND THE DEPARTING LOW.
BUT THE PATTERN IS FAIRLY PROGRESSIVE AND WEAK RIDGING WILL BE OVER MN BY 18Z. THEREFORE MAX TEMPS THIS AFTERNOON WILL BE 5-8 DEGREES WARMER IN WEST CENTRAL MN COMPARED TO THE LADYSMITH AND RICE LAKE AREAS. WITH A BROAD UPPER LOW OVER THE SOUTHERN PRAIRIE PROVINCES.
STILL THINK THE HIGHEST PROBABILITY OF SVR WEATHER WILL BE OVER THE EASTERN CWA.
524 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION.
348 AM MDT FRI AUG 7 2015 An upper level ridge translating across the Northern Rockies today will result in mostly sunny skies, mild temperatures, light winds, and generally dry conditions. By Saturday morning, the upper level low currently along the Central California coast will lift into Southwest Montana.
414 AM EDT FRI AUG 7 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW DRY WEATHER IS EXPECTED TODAY THROUGH SATURDAY AS WEAK HIGH PRESSURE OVER ILLINOIS AND THE GREAT LAKES SAGS SOUTHEAST ACROSS INDIANA.
605 AM EDT FRI AUG 7 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA TODAY BEFORE SLIDING OFF THE VIRGINIA COAST THIS AFTERNOON MOVING OFFSHORE THIS EVENING. HIGH PRESSURE WILL RIDGE INTO THE AREA BEHIND THE DEPARTING LOW.
LOW PRESSURE AND A COLD FRONT WILL PUSH TO OUR SOUTHEAST TODAY AND TONIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION THIS WEEKEND. LOW PRESSURE WAS NOTED JUST WEST OF KRDU. AND FALLING LOW LEVEL THICKNESSES BEHIND THE FRONT WILL RESULT IN COOLER TEMPS. AND ON SATURDAY WILL CROSS THE MID ATLANTIC REGION WHILE DROPPING INTO THE BASE OF THE L/W TROUGH OFF THE EAST COAST. NE LOW LEVEL FLOW WILL KEEP TEMPS A FEW DEGREES COOLER THAN NORMAL. THEN AS HIGH PRESSURE BUILDS TO OUR NORTH SATURDAY NIGHT. LOOK FOR DECREASING CLOUDINESS AND COOLER TEMPS.
LARGE UPPER LOW THAT PRODUCED SOME LIGHTNING ACROSS NW SLO COUNTY HAS MOVED OVER MONTERREY. BY DAWN ALL THE COASTS AND MOST OF THE VLYS WILL BE COVERED BY THE LOW CLOUDS.
SOME LOW/MID CLOUDS WERE NOTED UPSTREAM BUT THE LOW CLOUDS SHOULD GRADUALLY DECREASE IN COVERAGE.
A WEAK SFC BOUNDARY ACROSS THE NORTH MAY KEEP TEMPS A FEW DEGREES COOLER.
A SHORT WAVE TROUGH ALOFT CURRENTLY MOVING THROUGH THE 4-CORNERS REGION LIFTS OUT ACROSS THE CENTRAL ROCKIES THIS MORNING AND ACROSS NEBRASKA THIS EVENING. THERE WILL ALSO BE A POSSIBILITY OF THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL HIGH PLAINS REGION EACH AFTERNOON AND EVENING AS ADDITIONAL SHORT WAVE IMPULSES MOVE THROUGH THE WESTERLY FLOW ALOFT EAST OF THE ROCKIES AND AROUND THE HIGH PRESSURE AREA THAT REMAINS IN PLACE OVER THE SOUTHERN PLAINS.
427 AM EDT FRI AUG 7 2015 HIGH PRESSURE WILL DOMINATE OUR WEATHER THROUGH THE WEEKEND BRINGING DRY CONDITIONS AND COMFORTABLE TEMPERATURES.