Aikyam-Lab/Synoptic-Bench huggingface dataset:
1247 AM CST FRI FEB 19 2016 WE HAVE ISSUED A FREEZING RAIN ADVISORY FOR SOME FREEZING DRIZZLE/VERY LIGHT FREEZING RAIN FROM THE DVL BASIN INTO NW MN WHERE TEMPS HOVER NEAR FREEZING. WE WILL HAVE TO MONITOR OTHER COUNTIES ON THE FRINGE THAT HOVER NEAR FREEZING AS WELL OVERNIGHT INTO EARLY FRI MORNING. LOW TEMPS WILL BE RIGHT ON THE BORDER OF FREEZING. BUT SOME OF THE HIGHER ELEVATIONS WEST OF THE RED RIVER VALLEY MAY BE CLOSE TO ADVISORY CRITERIA ON FRI.
1203 AM EST FRI FEB 19 2016 HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND.
SURFACE FRONT APPROACHES LATE IN THE DAY FRIDAY BUT BERMUDA TYPE RIDGING WILL SLOW EASTWARD PROGRESS AND EVEN REVERSE DIRECTION BY 12Z SATURDAY ACROSS SOUTHERN MISSOURI.
THE COLD FRONT HAD MOVED TO A KGUC TO KDRO LINE BY 9 PM. LATEST VWP FROM THE KGJX INDICATED WINDS WERE DOWN TO 25 KNOTS FROM THE NORTHWEST IN THE LOWER GATE. DROPPED ALL WIND HIGHLIGHTS EXCEPT FOR THE HIGH WIND WARNING FOR THE SAN JUAN MOUNTAINS WHICH WILL REMAIN IN EFFECT UNTIL MIDNIGHT. THE COLD FRONT HAD MOVED TO A KLXV-20W KCEZ LINE BY 7 PM THIS EVENING. THESE WINDS ARE AHEAD OF A VIGOROUS COLD FRONT THAT AT 2PM HAD MOVED INTO NORTHEAST UT. UDOT WEBCAMS ALONG 191 INDICATED SNOW AND BLOWING SNOW ALONG THE RIDGE OF THE EASTERN UINTAS. TEMPERATURES WILL BE A LITTLE COOLER MOST PLACES AS COMPARED TO TODAY'S.
AN UPPER LEVEL TROUGH WILL CONTINUE TO MOVE ACROSS THE AREA THROUGH THIS EVENING AND THEN OUT OF THE AREA OVERNIGHT. COLDER AIR WITH THIS TROUGH HAS DEVELOPED MILDLY UNSTABLE CONDITIONS AND THERE ARE NUMEROUS CONVECTIVE SHOWERS AT THIS TIME. WITH COLDER AIR OVER THE AREA TONIGHT TEMPERATURES WILL BE A FEW DEGREES COOLER THAN LAST NIGHT. TEMPERATURES WILL BE A COUPLE OF DEGREES WARMER THAN TODAY. THIS SYSTEM WILL MOVE OUT OF THE AREA OVERNIGHT AND A RIDGE WILL MOVE OVER THE AREA WITH DRY WEATHER AND LIGHT WINDS EXPECTED SATURDAY AND SATURDAY NIGHT. CLEARING SKIES WILL LEAD TO TEMPERATURES BEING A FEW DEGREES WARMER SATURDAY AND SEVERAL DEGREES COOLER SATURDAY NIGHT.
1238 AM EST FRI FEB 19 2016 HIGH PRESSURE WILL BUILD IN THROUGH TONIGHT. A WARM FRONT WILL APPROACH FRIDAY NIGHT. A COLD FRONT WILL PASS SATURDAY NIGHT.
1120 PM EST THU FEB 18 2016 A WARM FRONT OVER THE MISSISSIPPI VALLEY WILL LIFT NORTHWARD ACROSS THE GREAT LAKES. LOW PRESSURE WILL CROSS THE NORTHERN GREAT LAKES ON FRIDAY WITH AN OCCLUDED FRONT DROPPING ACROSS THE AREA AND BECOMING STATIONARY FRIDAY NIGHT.
500 AM EST FRI FEB 19 2016 HIGH PRESSURE WILL CROSS THE AREA TODAY. LOW PRESSURE WILL TRACK NORTHWEST OF THE REGION SATURDAY THROUGH SATURDAY NIGHT. HIGH PRESSURE WILL CROSS THE REGION TODAY WITH SUNNY SKIES. LOW PRESSURE TRACKING NORTHEAST FROM THE GREAT LAKES WILL DRAW A WARM FRONT TOWARD THE REGION LATER TONIGHT. TO THE LOWER TO MID 30S DOWNEAST. TO THE LOWER TO MID 20S INTERIOR DOWNEAST WITH MID TO UPPER 20S ALONG THE DOWNEAST COAST. LOW PRESSURE TRACKING INTO WESTERN QUEBEC WILL PULL A WARM FRONT ACROSS THE AREA SATURDAY MORNING BRINGING SNOW TO THE AREA. THE LOW WILL TRACK TO OUR NORTH ACROSS QUEBEC SATURDAY NIGHT.
1127 PM EST THU FEB 18 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION OVERNIGHT. MILDER AIR WILL RETURN FOR FRIDAY AND SATURDAY ON A GUSTY SOUTHERLY BREEZE AS LOW PRESSURE TRACKS NORTH OF PENNSYLVANIA.
1007 PM CST THU FEB 18 2016 LOW PRESSURE OVER THE PLAINS AND HIGH PRESSURE OVER THE ERN US RESULTING IN A MODEST SOUTHEASTERLY FETCH ACROSS THE NORTHWEST GULF COAST REGION TONIGHT. HAVE ALSO REMOVED THE MENTION OF PATCHY FOG FROM THE GRIDS AND INCREASED THE LOW TEMPERATURE FCST WITH BOUNDARY LAYER MIXING EXPECTED TO CONTINUE THROUGH MOST OF THE OVERNIGHT. HIGH PRESSURE OVER THE NEW ENGLAND STATES LOOKS TO SLIDE DOWN THE EAST COAST AND WILL SETTLE OFF THE NORTH FLORIDA COAST.
903 PM MST THU FEB 18 2016 THE COLD FRONT HAD MOVED TO A KGUC TO KDRO LINE BY 9 PM. LATEST VWP FROM THE KGJX INDICATED WINDS WERE DOWN TO 25 KNOTS FROM THE NORTHWEST IN THE LOWER GATE. DROPPED ALL WIND HIGHLIGHTS EXCEPT FOR THE HIGH WIND WARNING FOR THE SAN JUAN MOUNTAINS WHICH WILL REMAIN IN EFFECT UNTIL MIDNIGHT. THE COLD FRONT HAD MOVED TO A KLXV-20W KCEZ LINE BY 7 PM THIS EVENING. THESE WINDS ARE AHEAD OF A VIGOROUS COLD FRONT THAT AT 2PM HAD MOVED INTO NORTHEAST UT. UDOT WEBCAMS ALONG 191 INDICATED SNOW AND BLOWING SNOW ALONG THE RIDGE OF THE EASTERN UINTAS. TEMPERATURES WILL BE A LITTLE COOLER MOST PLACES AS COMPARED TO TODAY'S.
/ISSUED 825 PM CST THU FEB 18 2016/ HIGH PRESSURE OVER THE EASTERN U.
WILL NOT PUT OUT ANY KIND OF FREEZING FOG HEADLINE FOR NOW BUT WILL KEEP AN EYE OUT FOR THE NEXT FEW HOURS AND FOR ANY RAIN COMING IN OVER LOWER TEMPERATURES. LOW TEMPS WILL BE RIGHT ON THE BORDER OF FREEZING. BUT SOME OF THE HIGHER ELEVATIONS WEST OF THE RED RIVER VALLEY MAY BE CLOSE TO ADVISORY CRITERIA ON FRI.
MID-LEVEL RIDGE CONTINUES TO STRENGTHEN AS SEEN ON WATER VAPOR IMAGERY AND WILL CONTINUE TO BUILD EAST OVERNIGHT. HIGH CLOUDS SPILLING OVER THE UPPER RIDGE WILL ALSO MOVE EAST WITH GENERALLY CLEAR SKIES EXPECTED. TEMPS WERE ON TRACK TONIGHT AS WELL AND EXPECTED TO DROP INTO THE LOWER TO MIDDLE 40S. MID-LEVEL RIDGE CONTINUES TO STRENGTHEN AS SEEN ON WATER VAPOR IMAGERY AND WILL CONTINUE TO BUILD EAST OVERNIGHT. HIGH CLOUDS SPILLING OVER THE UPPER RIDGE WILL ALSO MOVE EAST WITH GENERALLY CLEAR SKIES EXPECTED. TEMPS WERE ON TRACK TONIGHT AS WELL AND EXPECTED TO DROP INTO THE LOWER TO MIDDLE 40S.
NE/ENE LOW LVL FLOW HAS ALLOWED SFC WINDS TO VEER ONSHORE OFF THE WARMER ATLANTIC OCEAN FROM THE CAPE SOUTH ALONG THE COAST TO MARTIN COUNTY WHERE TEMPS HAVE WARMED INTO THE MID 60S WITH COOLER EARLY MORNING TEMPS IN THE 50S ACROSS THE INTERIOR. HIGHS WILL REACH THE LOWER 70S NEAR THE IMMEDIATE COAST AND THE MID 70S ACROSS THE INTERIOR. RIDGE AXIS NEAR GA/FL LINE SETTLES SOUTHEASTWARD TOWARD CENTRAL FL. GFS AND ECMWF FAIRLY SIMILAR WITH EVOLUTION OF MID- UPPER TROUGH DEEPENING OVER THE GULF COAST STATES TUE/WED. WITH GFS TRENDING TOWARD SLIGHTLY MORE DIGGING WITH SECONDARY TROUGH WED EVENING.
1255 AM EST FRI FEB 19 2016 A PRESSURE RIDGE EXTENDING INTO THE FORECAST AREA TONIGHT AND FRIDAY WILL MOVE OFF THE SOUTHEAST COAST SATURDAY. HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL DOMINATE OVERNIGHT. EARLY MORNING LOWS WILL BE IN THE LOWER TO MIDDLE 30S.
407 AM EST FRI FEB 19 2016 TEMPERATURES WILL MODERATE TODAY AND THE WARMER WEATHER WILL CONTINUE THROUGH MOST OF THE WEEKEND.
434 AM EST FRI FEB 19 2016 GUSTY CONDITIONS ARE EXPECTED TODAY AS SOUTHERLY WINDS INCREASE AHEAD OF A COLD FRONT.
920 PM MST THU FEB 18 2016 LATEST SFC ANALYSIS SHOWS THE LOW PRESSURE CENTER CURRENTLY LOCATED OVER NORTHWESTERN SOUTH DAKOTA. SCT -SHRA AND ISOLD -TSRA ARE LOCATED TO THE WEST OF THE LOW. AS RIDGE OVER THE CENTRAL CONUS SHIFTS EASTWARD. AND LIGHTER WINDS/COOLER TEMPS TO THE NORTH. SWEEPING A COLD FRONT THROUGH THE CWA IN THE EVENING. HAVE ADDED SOUTH CENTRAL SD TO THE HIGH WIND WARNING. TEMPS WILL BE COOLER.
1148 PM CST THU FEB 18 2016 Windy conditions will continue this evening ahead of an approaching cold front, helping keep the boundary layer mixed and holding temperatures above even our normal highs in the 50s overnight. A few weak waves may travel down the main upper trough and could bring brief periods of light precipitation, but probability in any one period is too low to mention at this time. Have cut back from SCT to FEW on the lower-level clouds for the pre-dawn hours as the trend currently looks to be a bit drier in the lower levels than previously thought as a boundary approaches from the north and west.
318 AM CST FRI FEB 19 2016 An amplified upper trough was lifting east-northeast across NE during the early morning hours. A strong LLJ of 60 KTS ahead of the the 850mb trough was shifting east into western MO. A cold front was moving east into north central KS. Westerly flow aloft carries a series of weak embedded disturbances while a cold front shifts winds to the north during the day Saturday.
317 AM EST FRI FEB 19 2016 HIGH PRESSURE ALONG THE EAST COAST WILL MOVE SOUTHEAST TONIGHT.
Fast upper flow continues with upper ridge axis moving out of the Plains and vigorous trough moving from the California coast at 12Z to Utah at 18Z. The upper trough continues to zip across the Central and Northern Plains tonight, reaching the eastern Great Lakes by Friday evening. A strong Pacific cold front surges through late tonight, bringing another warm but modified airmass in. The loss of daytime heating should allow for some decrease in speeds, keeping the Advisory on track to expire at 7 pm, but low level jet increases ahead of the trough to around 70kt and will likely support some speeds near Advisory levels through much of the night. Models continue to show a weak cold front stretching northeastward into southeast and far east central Kansas Saturday afternoon into Saturday evening, however moisture and lift looks to be limited.
A cold front will move into southwest Kansas overnight as an upper level disturbance crosses the Northern Plains. Models are in good agreement with some cooler air returning to western Kansas on Friday with the 850mb temperatures from the GFS and NAM indicating around a 10C drop from 00z Friday to 00z Saturday. The next in a series of upper level troughs will be crossing the plains over the weekend period.
MOSTLY CLEAR SKIES TONIGHT UNDER A RIDGE MOVING ACROSS THE EASTERN UNITED STATES. THIS HAS ALLOWED TEMPERATURES TO DROP TO AROUND FREEZING ACROSS THE FORECAST AREA.
259 AM CST FRI FEB 19 2016 A CHALLENGING FORECAST THIS MORNING WITH FREEZING DRIZZLE AND LIGHT FREEZING DRIZZLE CAUSING ICY ROADS IN THE NW. TEMPS WILL HOVER NEAR FREEZING WITH FREEZING DRIZZLE/LIGHT RAIN. AND WILL EXPAND THE FREEZING RAIN ADVISORY INTO BARNES COUNTY WITH THIS MORNINGS UPDATE. MANY OTHER AREAS ARE WITHIN A FEW DEGREES OF FREEZING.
COLD FRONT WILL MOVE THROUGH TONIGHT BRINGING A THREAT OF BRIEF GUSTY WINDS. OTHERWISE SLIGHTLY COOLER TEMPERATURES ON FRIDAY BUT STILL WELL ABOVE NORMAL.
Southwest flow aloft continues, with the main low level thermal ridge just off to the west.
DRY AND UNSEASONABLY WARM CONDITIONS AGAIN EXPECTED FOR THE COMING WEEK AS HIGH PRESSURE DOMINATES. THE LONG PERIOD RIDGE RE-AMPLIFIES A BIT AND THE SEVERAL DEGREES WE LOSE TODAY WILL LARGELY BE RECOVERED AS TEMPERATURES CONTINUE WELL ABOVE CLIMATOLOGY THROUGH THE COMING WEEK.
/ISSUED 953 PM CST THU FEB 18 2016/ LATE EVENING SURFACE MAP SHOWED A 988MB LOW PRESSURE OVER THE NORTHERN HIGH PLAINS WITH LOW LEVEL PRESSURE TROF EXTENDING SOUTH INTO THE TX PANHANDLE. 1038MB PRESSURE RIDGE WAS CENTERED OVER NEW YORK. WITH A PRESSURE TROF EXTENDING SOUTH DOWN THE EASTERN SEABOARD. THIS WILL ALLOW LOW TEMPERATURES TO BE MUCH WARMER THAN LAST NIGHT EVEN UNDERNEATH CLEAR SKIES. A COLD FRONT WILL SINK SOUTHWARD OUT OF THE PLAINS ON FRIDAY AND STALL OUT OVER THE I-44 CORRIDOR IN MISSOURI. TEMPERATURES WILL BE MILD WITH HIGHS RANGING FROM THE MID 60S TO THE LOWER 70S FRIDAY INTO THE WEEKEND.
The high pressure currently centered over Lake Michigan will shift eastward overnight. This will put the northeastern portion of the forecast area closest to the high pressure. Highs will top out in the lower 60s in the north and the upper 60s in the south.
514 PM EDT TUE APR 12 2016 HIGH PRESSURE IS EXPECTED TO BRING DRY WEATHER AND A GRADUAL WARMING TREND THROUGH THE WEEKEND. UNDERCUT OVERNIGHT TEMPERATURE GUIDANCE WITH WINDS ON THE LIGHT SIDE AS HIGH PRESSURE MOVES ACROSS THE EASTERN GREAT LAKES. SOME HIGH CLOUDS WILL MOVE INTO THE REGION TOMORROW WITH AN UPPER LEVEL TROUGH. HIGHS ON WEDNESDAY WILL BE 5-10 DEGREES WARMER THAN TUESDAY. ALTHOUGH THESE VALUES WILL STILL BE SEVERAL DEGREES COOLER THAN NORMAL. WEAK GENERAL MID-LEVEL TROUGHING WILL HAVE ONE LAST REINFORCING SHORT WAVE TROUGH SLIDE DOWN THE BACK SIDE OF THE LONG WAVE TROUGH WEDNESDAY EVENING.
A RIDGE OF HIGH PRESSURE WILL THEN BUILD SLOWLY EAST FROM THE GREAT LAKES OVERNIGHT AND WILL REMAIN OVER THE NORTH COUNTRY THROUGH THIS WEEKEND. TEMPERATURES WILL GRADUALLY BECOME WARMER THROUGH THE END OF THIS WEEK AND INTO THE WEEKEND.
THE PRECIPITATION ALSO LED TO TEMPERATURES A FEW DEGREES COOLER THAN EXPECTED IN CENTRAL MN. WEDNESDAY WILL BE DRY AS TODAYS SYSTEM MOVES OFF TO THE EAST AND A WEAK RIDGE BUILDS OVERHEAD.
MOST OF THE HIGH TEMPERATURES WERE IN PRETTY GOOD SHAPE DESPITE CLOUD COVER. EXPECTING NORTHEAST TO EAST FLOW IN THE LOWER LEVELS TONIGHT AROUND THE RIDGE TO AIDE IN SOME RETURN OF STRATUS DURING THE EARLY MORNING HOURS.
UPPER LEVEL RIDGE OVER THE REGION SHIFTS EASTWARD FAR ENOUGH TO ALLOW A MOIST AND UNSTABLE AIRMASS TO STREAM INTO WESTERN AND CENTRAL MONTANA THIS AFTERNOON. MOISTURE ON THE WEST SIDE OF THE RIDGE WILL COME EAST OF THE CONTINENTAL DIVIDE BY MID-AFTN, BRINGING STEADY INCREASE IN CLOUD COVER WITH CEILINGS LOWERING TO AROUND 7000-10000 FT VCNTY KGTF/KHLN.
319 PM CDT TUE APR 12 2016 HIGH PRESSURE OVER THE MID SOUTH WILL KEEP DRY WEATHER CONDITIONS IN PLACE TONIGHT. AN UPPER LEVEL LOW PRESSURE SYSTEM NOW OVER SOUTHERN NEW MEXICO WILL LIFT NORTHEAST OVER THE NEXT COUPLE OF DAYS. TEMPERATURES SHOULD BE A FEW DEGREES WARMER ON WEDNESDAY UNDER INCREASING LOW LEVEL WARM ADVECTION. THE UPPER LEVEL LOW WILL BECOME CUT OFF FROM THE MAIN WESTERLIES AND LINGER ACROSS THE MID SOUTH THROUGH THE END OF THE WEEK.
A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE SOUTHERN APPALACHIANS OVERNIGHT WITH SKY CLEARING THIS EVENING AND LIGHT/CALM WINDS.
1239 PM CDT TUE APR 12 2016 FOR 18Z TAFS /ISSUED 1005 AM CDT TUE APR 12 2016/ THE COLD FRONT THAT BROUGHT THE SHOWERS OVERNIGHT IS NOW WELL SOUTHEAST OF THE AREA AND AS OF 15Z THE CLEARING LINE IN THE CLOUDS IS THROUGH THE CORNER OF NW ALABAMA. WITH THE HIGH PRESSURE CENTERED OVER THE MIDWEST AND BUILDING SOUTH.
A WEAK COLD FRONT IS LOCATED VERY NEAR THE COAST OF UPPER SOUTHEAST TEXAS AND SOUTHERN LOUISIANA THIS AFTERNOON. WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW OVER THE SOUTHWEST U. AS THE HIGH MOISTURE CONTENT.
659 PM EDT TUE APR 12 2016 A COLD FRONT WILL PUSH THROUGH THE FORECAST AREA LATER THIS EVENING.
Thus, we anticipate warmer temperatures tomorrow, with highs generally in the lower 70s.
UPPER FLOW BECOMING SWLY AND INCREASING SOME AS LARGE UPPER LOW MOVES INTO THE PACIFIC NW THEN BEGINS DIGGING INTO THE NEVADA/UTAH REGION.
355 PM EDT TUE APR 12 2016 WATER VAPOR IMAGERY AND RAP ANALYSIS SHOW MID LEVEL TROF SHIFTING E OF THE UPPER GREAT LAKES EARLY THIS MORNING. WITH 850MB THERMAL TROF RATHER SLOW TO SHIFT E AND WITH LOW-LEVEL MOISTURE ADDED BY LAKE SUPERIOR. S TO SE WINDS WILL PREVAIL WED THRU SAT AS A HIGH PRES RIDGE SETS UP TO THE E AND SE AND A LOW PRES TROF SETS UP TO THE NW.
1146 AM MDT TUE APR 12 2016 A CLOSED LOW OVER NEW MEXICO AND ARIZONA TODAY IS PUMPING MOISTURE AND ENERGY INTO THE FOUR CORNERS THIS MORNING AND WILL ALLOW FOR INCREASED ACTIVITY ACROSS THE FOUR CORNERS THROUGHOUT THE DAY TODAY. AS THIS UPPER LOW AND ITS ASSOCIATED COLD FRONT MOVE INTO THE GREAT BASIN THU/THU NIGHT.
SURFACE ANALYSIS PLACED A COLD FRONT ALONG THE UPPER TEXAS COAST EARLY THIS AFTERNOON AND THIS FEATURE IS EXPECTED TO LIFT NORTH TOWARDS INTERSTATE 10 LATER THIS EVENING AS A COASTAL LOW MOVES ALONG THE UPPER TEXAS COAST. /ISSUED 345 AM CDT TUE APR 12 2016/ AN UPPER LOW OVER SOUTHERN AZ AND NORTHWESTERN MEXICO WILL MOVE EAST AND SHEAR OUT OVER NM LATER TODAY AND OVER TX TONIGHT AND WEDNESDAY.
Present indications suggest the potential for areas of light frost during the late night and early morning hours when temperatures dip into the lower 30s. Gradually veering of the low level winds along with a good deal of sunshine will bring moderating temps on Wednesday with highs approaching normal values for mid April.
FOCUS REMAINS ON POTENTIAL FOR RAIN AND THUNDERSTORMS ASSOCIATED WITH INCREASING MOISTURE AND AN APPROACHING UPPER LEVEL LOW PRESSURE SYSTEM.
HIGH PRESSURE WILL SHIFT EAST OVERNIGHT. THIS WILL KEEP LAKESHORE TEMPERATURES COOLER.
133 PM EDT TUE APR 12 2016 AVIATION A HIGH PRESSURE RIDGE WILL BUILD IN AND BRING A PROLONGED PERIOD OF DRY WEATHER THROUGH THE UPCOMING WEEK AND WEEKEND. SHORT TERM FCST CONCERNS ARE MINIMAL AS HIGH PRESSURE WILL CONTINUE TO BUILD IN THROUGH MIDWEEK AND BRING DRY WX WITH A GRADUAL MODERATING TREND OF TEMPERATURES. A FEW FLURRIES ARE POSSIBLE OVER OUR FAR NORTHERN FCST AREA THROUGH MID MORNING TODAY AS A RESULT OF THE UPPER TROUGH AXIS OVERHEAD. HOWEVER THE DRY AIRMASS AND RIDGING BUILDING IN THE CHANCE FOR FLURRIES WILL END BY MID TO LATE MORNING. HOWEVER MOST LOCATIONS WILL NOT GET ANY PCPN GIVEN THE DRY AIRMASS IN PLACE AND SUBSIDENCE UNDER THE RIDGE.
Vigorous closed low located near the New Mexico bootheel. Weak closed low will track NE tonight and Wednesday morning, into western Oklahoma by 7 AM Wednesday. Consensus of short term models suggests patchy fog may redevelop on the higher terrain of the western CWA late tonight, and included such in the grids. Temperatures tonight will be notably milder owing to the moisture advection, with most locations holding in the lower 40s. Warmer. Weak cutoff ejects east to near Chanute, allowing weak ridging to overspread SW KS. Highs in the low to mid 70s.
206 PM EDT TUE APR 12 2016 HIGH PRESSURE AND A DRY AIRMASS WILL SETTLE IN ACROSS THE GREAT LAKES AND OHIO VALLEY TODAY.
SHOWER AND THUNDERSTORM COVERAGE CONTINUES TO INCREASE FROM WEST TX INTO THE WESTERN LOW ROLLING PLAINS THIS AFTERNOON AHEAD OF THE ADVANCING MID TO UPPER TROUGH. BUT ADDITIONAL CLOUDS WILL FORM AHEAD OF AN UPPER LOW THIS AFTERNOON/EVENING. PRECIPITATION CHANCES WILL INCREASE THIS EVENING AND OVERNIGHT AS THE UPPER LOW MOVES FROM EASTERN NEW MEXICO INTO FAR WESTERN OKLAHOMA.
1232 PM CDT TUE APR 12 2016 317 AM CDT THE COOLER BY THE LAKE REGIME BEGINS TODAY AS EXTENSIVE HIGH PRESSURE WILL MOVE OVERHEAD THIS MORNING.
609 PM EDT TUE APR 12 2016 A COLD FRONT WILL MOVE FARTHER EAST OF THE AREA TONIGHT AS HIGH PRESSURE STARTS TO BUILD IN. THE HIGH WILL CENTER INTO THE CANADIAN MARITIMES INTO MIDWEEK.
315 PM EDT TUE APR 12 2016 A COLD FRONT WILL MOVE THROUGH THE REGION THIS EVENING. HIGH PRESSURE WILL BUILD IN ON WEDNESDAY AND REMAIN IN CONTROL THROUGH THE WEEKEND. COLD FRONT NOW PASSING SOUTH SOUTHEASTWARD THROUGH CENTRAL VA WILL PUSH THROUGH THE FA TONIGHT. ESPECIALLY ALONG THE COAST WITH A TIGHT PRESSURE GRADIENT BETWEEN HIGH PRESSURE CENTERED TO OUR NORTHWEST AND AN AREA OF LOW PRESSURE WELL OFF THE COAST.
129 PM EDT TUE APR 12 2016 HIGH PRESSURE IS EXPECTED TO BRING DRY WEATHER AND A GRADUAL WARMING TREND THROUGH THE WEEKEND. UNDERCUT OVERNIGHT TEMPERATURE GUIDANCE WITH WINDS ON THE LIGHT SIDE AS HIGH PRESSURE MOVES ACROSS THE EASTERN GREAT LAKES. SOME HIGH CLOUDS WILL MOVE INTO THE REGION TOMORROW WITH AN UPPER LEVEL TROUGH. HIGHS ON WEDNESDAY WILL BE 5-10 DEGREES WARMER THAN TUESDAY. ALTHOUGH THESE VALUES WILL STILL BE SEVERAL DEGREES COOLER THAN NORMAL. WEAK GENERAL MID-LEVEL TROUGHING WILL HAVE ONE LAST REINFORCING SHORT WAVE TROUGH SLIDE DOWN THE BACK SIDE OF THE LONG WAVE TROUGH WEDNESDAY EVENING.
AN UPPER RIDGE WAS SITTING OVER THE FORECAST AREA LATE THIS AFTERNOON. A STRONG JET OVER THE PACIFIC OCEAN WILL DRIVE THE RIDGE EAST THIS EVENING AND OPEN THE FLOW TO THE SOUTHWEST. WEDNESDAY WILL BE COOLER WITH MORE CLOUD COVER AND SCATTERED SHOWERS AROUND.
OTHERWISE A SIGNIFICANT WARM UP IS ON THE HORIZON FOR LATE THIS WEEK AND OVER THE WEEKEND AS A RIDGE OF HIGH PRESSURE BUILDS OVER THE REGION.
358 PM EDT TUE APR 12 2016 12Z RAOBS/LATEST RAP ANALYSIS AND WV IMAGERY SHOWS NW FLOW ALF BTWN UP RDG OVER THE ROCKIES AND PERSISTENT UPR TROF OVER ERN NAMERICA. SC THAT PREVAILED ACRS THE CWA EARLIER IS BREAKING UP W-E AND GIVING WAY TO MOSUNNY SKIES DESPITE SOME LINGERING H85 THERMAL TROFFING. EXPECT THE LOWEST MIN TEMPS TNGT OVER THE E. AS A COLD FRONT DRIFTS SLOWLY INTO THE UPPER LAKES LATE IN THE WEEKEND.
133 PM EDT TUE APR 12 2016 HIGH PRESSURE FROM THE UPPER MIDWEST WILL MOVE TO THE EASTERN GREAT LAKES BY WEDNESDAY. THE LONG WAVE TROUGH ALOFT WILL BE SLIDING EAST OF THE AREA THIS MORNING. GIVEN THE RIDGE AXIS BEING WELL TO THE NORTHWEST. DERIVING THE HIGH TEMPERATURE FROM THE FORECAST 850 MB TEMPS GAVE ME ONLY 40-45 AND UPSTREAM TEMPERATURES WERE IN THE 40S YESTERDAY SO THE HIGH TEMPERATURE FORECAST IS SHADED TOWARD THE LOWER GUIDANCE OR A LITTLE BELOW GUIDANCE. HIGHS IN THE LOWER/MID 50S INLAND AND MID/UPPER 40S NEAR LAKE ERIE.
651 PM EDT TUE APR 12 2016 A COLD FRONT WILL PUSH EAST OF THE AREA TONIGHT.
/ISSUED ISSUED BY NATIONAL WEATHER SERVICE JACKSONVILLE FL/ FORECAST ON TRACK AS WEAK HIGH PRESSURE RIDGE ACROSS CNTRL FLORIDA WILL DRIFT SOUTHWARD INTO THE REGION BY THIS AFTERNOON. AS THE HIGH PRESSURE SLIDES E, PRESSURE GRADIENTS WILL GRADUALLY RELAX AND ALLOW FOR WINDS TO SUBSIDE TODAY. THEREFORE, EXPECT ANOTHER COUPLE OF DAYS OF BENIGN WEATHER CONDITIONS WITH AFTERNOON HIGHS IN THE MID TO UPPER 80S ACROSS INTERIOR AND WESTERN AREAS, AND IN THE LOWER 80S NEAR THE COAST.
STRONG WARM AIR ADVECTION IN ADVANCE OF A SHORT WAVE TROUGH OVER CENTRAL NORTH DAKOTA WAS PRODUCING A 6 TO 10K DECK OF CLOUDS ACROSS MINNESOTA AND NORTHWEST WISCONSIN. 18Z MODELS ARE IN GOOD AGREEMENT THAT THE SHORT WAVE TROUGH WILL MOVE EAST ACROSS NORTHERN MINNESOTA AND NORTHERN WISCONSIN. FREEZING RAIN. A WARM FRONT WILL MOVE SLOWLY NORTH THROUGH CENTRAL MINNESOTA AND NORTHERN WISCONSIN. WITH ONLY WEAK MOISTURE CONVERGENCE ALONG AND NORTH OF THIS WARM FRONT.
UPPER LEVEL RIDGE AXIS MOVES TO WESTERN NORTH DAKOTA BY 12Z WEDNESDAY. THERMAL RIDGING AHEAD OF THE FRONT WILL HELP SUPPORT TEMPERATURES INTO THE 70S ACROSS MUCH OF WESTERN AND CENTRAL NORTH DAKOTA. ALSO WITH THE INCREASING MOISTURE THE INSTABILITY ALONG THE FRONT INCREASES ENOUGH THAT WE MAY SEE A LITTLE THUNDER WITH ANY CELLS THAT DEVELOP ALONG THE COLD FRONT.
TEMPERATURES WILL BE WARMER WEDNESDAY WITH HIGHS EXPECTED IN THE 70S. MODELS REMAIN IN GOOD AGREEMENT SHOWING UPPER LEVEL RIDGING EXTENDING INTO THE AREA WEDNESDAY NIGHT FROM THE SW. WHILE AN AREA OF LOW PRESSURE GRADUALLY SLIDES INTO THE ERN GULF COAST STATES.
144 PM EDT TUE APR 12 2016 HYDRO A HIGH PRESSURE RIDGE WILL BUILD IN AND BRING A PROLONGED PERIOD OF DRY WEATHER THROUGH THE UPCOMING WEEK AND WEEKEND. SHORT TERM FCST CONCERNS ARE MINIMAL AS HIGH PRESSURE WILL CONTINUE TO BUILD IN THROUGH MIDWEEK AND BRING DRY WX WITH A GRADUAL MODERATING TREND OF TEMPERATURES. A FEW FLURRIES ARE POSSIBLE OVER OUR FAR NORTHERN FCST AREA THROUGH MID MORNING TODAY AS A RESULT OF THE UPPER TROUGH AXIS OVERHEAD. HOWEVER THE DRY AIRMASS AND RIDGING BUILDING IN THE CHANCE FOR FLURRIES WILL END BY MID TO LATE MORNING. HOWEVER MOST LOCATIONS WILL NOT GET ANY PCPN GIVEN THE DRY AIRMASS IN PLACE AND SUBSIDENCE UNDER THE RIDGE.
With the highs influence tonight, quiet weather will be the rule with mainly clear skies. Wednesday afternoon highs will reflect the cloud cover, with highs just in the lower 60s where the clouds are thickest and the middle to upper 60s over southeast Kansas and western Missouri where more sun will be seen.
142 PM EDT TUE APR 12 2016 A COLD FRONT WILL FINISH CLEARING THE AREA THIS MORNING. A LARGE HIGH PRESSURE AREA WILL BUILD IN WEDNESDAY.
RIDGING WILL BUILD INTO THE REGION WITH GOOD FLIGHT CONDITIONS.
1202 PM CDT TUE APR 12 2016 High pressure centered over western Iowa/southwest Minnesota will continue moving east southeast today. Cool dry conditions are expected under the influence of this high. Carney Although lows tonight should be a little warmer than the previous night, especially across northeast and central MO as well as west central IL, there may be some frost due to a clear sky, light surface wind, and lows ranging from 33-36 degrees over much of the forecast area. A quiet and dry weather pattern will continue as an upper level ridge moves slowly eastward to the central US by Wednesday, along with persistent surface ridging extending from the Great Lakes and northeastern US southwest into eastern MO.
1215 PM CDT TUE APR 12 2016 LIGHT WINDS AND CLEAR SKIES HAVE ALLOWED TEMPERATURES TO FALL BELOW FREEZING IN MOST OF THE AREA EARLY THIS MORNING.
There is a lee trough over the high plains, but it is not relatively deep. Expect minimum relative humidity values to only reach the lower 30 percent range.
DRY WEATHER AND A WARMING TREND WILL BE THE RULE THROUGH THE WEEKEND AS HIGH PRESSURE ALONG WITH AN UPPER RIDGE BUILDS ACROSS THE GREAT LAKES.