Aikyam-Lab/Synoptic-Bench huggingface dataset:
638 AM CDT Sun Apr 19 2015 Today - Tonight: Today's weather will be governed by the transition of an upper level closed low to an open wave. Latest water vapor satellite imagery shows the closed upper low has now shifted east into west central KS early this morning.
A COLD FRONT WILL MOVE THROUGH SOUTH TEXAS THIS EVENING WITH WINDS SHIFTING AROUND TO THE N AND NE. MORNING WATER VAPOR AND STREAMLINE ANALYSIS PLACES UPPER LEVEL LOW OVER EASTERN COLORADO AND WESTERN KANSAS. COLD FRONT WILL APPROACH THROUGH THE DAY AND THIS MAY PROVIDE ENOUGH TO GENERATE SOME CONVECTION. CONFIDENCE IS ON THE LOW END OF THE SPECTRUM WITH REGARDS TO SEVERE WEATHER AND WILL NOT MENTION SEVERE IN THE OFFICIAL FORECAST. NORTHEAST WINDS WILL BE PREVALENT ON MONDAY BEHIND COLD FRONT.
AND BLENDED PRECIPITABLE WATER IMAGERY SHOWS HIGHER MOISTURE IS ALIGNED TO THE SOUTH/SOUTHWEST OF THE LOWER KEYS AND ACROSS THE SOUTHERN EXTREME OF THE MAINLAND. THE HIGH TEMPERATURE IN KEY WEST WAS 89 DEGREES SETTING THE DAILY RECORD MAXIMUM TEMPERATURE.
THEN BACKING TO SW ON UP AS A LARGE UPPER LOW OVER TX/OK PNDL IS LIKELY TO PRODUCE MORE TSTMS ALONG A COLD FRONT LATER IN THE DAYTIME HEAT.
HOWEVER AN INCREASE IN MOISTURE WILL OCCUR THROUGHOUT THE REMAINDER OF TODAY AS A COLD FRONT ACROSS THE PAN HANDLE MOVES SOUTHEASTWARD ACROSS THE STATE. IN ADDITION TO THE COLD FRONT.
A COLD FRONT WILL ENTER EASTERN OKLAHOMA THIS AFTERNOON. ACTIVE WEATHER PATTERN WILL CONTINUE TODAY AS UPPER LOW OVER EASTERN COLORADO BEGINS TO SHIFT SOUTHEAST INTO THE AREA. AHEAD OF LOW AND APPROACHING COLD FRONT. COLD FRONT IS EXPECTED TO SWEEP EAST OF THE REGION THIS EVENING WITH THE SEVERE WEATHER THREAT ENDING.
A COLD FRONT WILL OVERTAKE THE SURFACE DRYLINE JUST BEFORE OR AROUND 00Z WITH WINDS SHIFT TO THE NORTHWEST AROUND 15 KTS AND GUSTY THROUGH THE EVENING HOURS. /ISSUED 507 AM CDT SUN APR 19 2015/ AN UPPER LOW WILL SWING THROUGH THE CENTRAL PLAINS TODAY. THIS SHOULD DISRUPT THE TYPICAL PRE-DRYLINE MOISTURE FLUX AND REDUCE THE LOW-LEVEL CONVERGENCE IN VICINITY OF THE BOUNDARY.
748 AM EDT SUN APR 19 2015 AN UPPER TROUGH MOVING INTO THE EASTERN GULF OF MEXICO LATE WILL PROVIDE ENOUGH FORCING FOR STORMS AFFECTING PBI LATE, AND POSSIBLY SOME SHRAS AT APF. THE DOMINANT WEATHER FEATURE THROUGH THE DAY WILL BE STRONG UPPER RIDGING CENTERED OVER CUBA EXTENDING NORTH AND INTO SOUTH FLORIDA. THIS FEATURE SHOULD KEEP AFTERNOON SHOWER AND THUNDERSTORM COVERAGE RATHER LIMITED ACROSS THE AREA DUE TO WARMER TEMPERATURES ALOFT. AS THE RIDGE AXIS SLIDES TO THE EAST LATE IN THE DAY. RIDGING CONTINUES TO BREAK DOWN INTO MONDAY AS A MID LEVEL TROUGH AXIS SWINGS INTO NORTHERN FLORIDA. DEEPER MOISTURE WILL THEN PUSH INTO THE AREA AHEAD OF AN APPROACHING COLD FRONT.
Another low pressure system will move into the region by the middle of the week bringing cooler temperatures and continuing the threat of showers or thunderstorms into the end of the week. The warmer thermal belt areas in the foothills and northern Sacramento Valley are in the 60s. The surface thermal trough remains over the valley and a moderately strong northerly pressure gradient across far northern California has kept enough of a northerly breeze overnight in Redding to keep the temperatures there in the upper 60s while just to the south, readings at Chico and Red Bluff managed to lower in the mid and upper 50s.
650 AM CDT SUN APR 19 2015 UPPER LEVEL LOW CENTERED IN WESTERN KANSAS CONTINUES TO SLOWLY CHURN EASTWARD WHILE THE DEEP TROUGH RIDING THE NORTHERN STREAM DIGS INTO NORTHWEST PLAINS. HIGHS TODAY WILL BE SLIGHTLY COOLER THAN NORMAL IN THE MID 50S TO NEAR 60. LOWS WILL BE QUITE A BIT COOLER. AFTER LOW TEMPERATURES CLOSE TO FREEZING MONDAY NIGHT.
A WEAK LOW PRESSURE SYSTEM OFF THE CALIFORNIA COAST WILL MOVE SLOWLY SOUTHWARD THROUGH MONDAY.
HIGH PRESSURE ALOFT WILL REMAIN OVER THE REGION THROUGH MONDAY.
THE PRIMARY TROUGH AXIS AND ASSOCIATED VORT MAX REMAINS OVER FAR NW OK AND BOTH ZONES OF FORCING WILL CONTINUE EASTWARD WITH INCREASING LIFT IN THEIR ADVANCE.
AN UPPER LEVEL TROUGH APPROACHING FROM THE WEST WILL RE-ENERGIZE THE FRONT ALLOWING RAIN TO MOVE INLAND LATE SATURDAY AFTERNOON AND CONTINUING SATURDAY NIGHT.
THIS WILL PROVIDE SOUTH TO SOUTHEASTERLY FLOW IN THE LOW-LEVELS FOR TONIGHT.
650 PM CDT FRI MAR 25 2016 It's going to be a cool,and possibly wet weekend, with warmer weather and thunderstorms possible by the middle of next work week.
905 PM CDT FRI MAR 25 2016 Forecast grids looking on track as low pressure slides east tonight and tomorrow. Mid and high clouds are expected to increase later tonight as the next low pressure system approaches the western Great Lakes.
TEMPERATURES TONIGHT WILL BE WARMER THAN LAST NIGHT. PREFER THE WARMER SIDE OF GUIDANCE HIGHS.
A SLOW MOVING COLD FRONT WILL PUSH THROUGH THE REGION OVERNIGHT. HIGH PRESSURE WILL BUILD SOUTH INTO THE AREA SATURDAY AS THE FRONT STALLS ALONG THE SOUTHEAST COAST THROUGH THE WEEKEND.
738 PM EDT FRI MAR 25 2016 HIGH PRESSURE WILL BUILD IN BRINGING A COOLER AIRMASS TO END THE WORK WEEK. SKIES WILL BECOME CLEAR TO SCATTERED OVERNIGHT AS THE HIGH BUILDS NORTHEAST TOWARD UPSTATE NEW YORK AND EASTERN CANADA.
RIDGE AXIS OVER S FL/FL STRAITS WILL MAINTAIN A LIGHT TO GENTLE SRLY BREEZE OVER THE LCL ATLC OVERNIGHT.
Two progressive upper level troughs will pass across western Kansas tonight and again Saturday night.
WITH TEMPERATURES ABOVE FREEZING THERE HAS NOT BEEN MUCH BLOWING SNOW EVEN WITH 20 TO 35 MPH WINDS. AN AREA OF LOW PRESSURE CURRENTLY OVER SOUTH CENTRAL SOUTH DAKOTA WILL TRACK EASTWARD THROUGH SATURDAY MORNING. TO JUST NORTH OF MOBRIDGE. THIS IS WHERE UPPER LEVEL LIFT WILL INTERACT WITH THE SECONDARY COLD FRONT.
BROAD TROUGHING ALOFT SHARPENS SOMEWHAT FRIDAY NIGHT INTO SATURDAY WHILE PROGRESSING FROM THE CENTRAL PLAINS INTO THE MISSISSIPPI VALLEY. INVERTED TROUGHING TRANSLATES EASTWARD WITH LOW PRESSURE DEVELOPING OVER IOWA SATURDAY AFTERNOON AND LIFTING INTO WESTERN WISCONSIN SATURDAY NIGHT. OUR AREA REMAINS ON THE WARM SIDE OF THE LOW.
THIS FRONT WILL TRY TO MOVE SLOWLY NORTHWARD AS A WARM FRONT ON SATURDAY AS A TROUGH DIGS TO OUR WEST.
807 PM EDT FRI MAR 25 2016 THE WEEKEND WILL BE DRY AND MILD WITH HIGH PRESSURE IN CONTROL.
845 PM CDT FRI MAR 25 2016 A HIGH PRESSURE RIDGE OVER SE TEXAS WILL CONTINUE TO SLOWLY MOVE EAST OF THE STATE TONIGHT. AM EXPECTING TEMPERATURES TO BE WARMER TONIGHT COMPARED TO WHAT OCCURRED 24 HOURS AGO. /ISSUED 347 PM CDT FRI MAR 25 2016/ HIGH PRESSURE OVERHEAD WITH JUST A LITTLE CIRRUS MOVING ACROSS FROM THE SOUTHWEST. SATURDAY SHOULD BE WARMER AND A LITTLE MORE MOIST.
854 PM PDT FRI MAR 25 2016 High pressure will build into the region tonight for a brief drying trend.
The cold front should reach KABI by 09z tomorrow night shifting the winds to the north at 15 to 25 kts and gusty. Low clouds will be short lived if they do occur, with even warmer temperatures than today set for Saturday afternoon.
1127 PM CDT FRI MAR 25 2016 Forecast grids looking on track as low pressure slides east tonight and tomorrow. Mid and high clouds are expected to increase later tonight as the next low pressure system approaches the western Great Lakes.
Low clouds will be short lived if they do occur, with even warmer temperatures than today set for Saturday afternoon.
641 PM CDT FRI MAR 25 2016 High pressure ridge axis settled over the region this morning, clearing most of the clouds across Central Illinois. Ridge of high pressure currently located along the Mississippi River will slide eastward today, resulting in light winds and clearing skies. Abundant sunshine will prevail across the board by afternoon, with high temperatures mainly in the lower 50s.
THIS TROUGH WILL PUSH A COLD FRONT THROUGH THE AREA WHICH WILL REINFORCE THE NORTHERLY GRADIENT ALREADY IN PLACE FROM LAST NIGHTS COLD FRONT.
AN AREA OF LOW PRESSURE WILL LIFT OVER THE CAROLINAS AND WILL BRING IN SOME LOW AND MID LEVEL CLOUDS ACROSS THE TAF SITES.
A RIDGE OF HIGH PRESSURE IS EXPECTED TO SETTLE OVER THE REGION ON SATURDAY. WHICH WILL BRING US MORE DRY WEATHER AND MUCH WARMER TEMPERATURES ON SATURDAY. THE PROXIMITY OF THE RIDGE AND THE EXPECTED ABUNDANT SUNSHINE SHOULD ALLOW TEMPERATURES TO CLIMB INTO THE MID TO UPPER 60S BY SATURDAY AFTERNOON.
738 PM EDT FRI MAR 25 2016 AVIATION HIGH PRESSURE WILL BRING FAIR WEATHER INTO SATURDAY NIGHT.
A SLOW MOVING COLD FRONT WILL CROSS THE AREA LATE THIS AFTERNOON AND EVENING. COOL HIGH PRESSURE WILL WEDGE SOUTH INTO THE AREA TONIGHT AND SATURDAY AS THE FRONT STALLS ALONG THE SOUTHEAST COAST THROUGH THE WEEKEND.
THIS EVENING THROUGH SATURDAY NIGHT ADVECTING UPPER TROUGH CONTINUES TO SHIFT SE ACROSS THE NORTHERN PLAINS AS A STRONG COLD FRONT SETTLES SOUTH ACROSS THE DAKOTAS. COLD FRONT WILL CONTINUE TO SETTLE SOUTH ACROSS THE FA THIS EVENING. WINDS WILL VEER NNE AS THE COLD FRONT PUSHES INTO THE AREA THIS EVENING.
1136 PM CDT FRI MAR 25 2016 It's going to be a cool,and possibly wet weekend, with warmer weather and thunderstorms possible by the middle of next work week.
South winds will persist over night as low pressure approaches from the west. Saturday will be warmer than today with readings well into the 60s.
A COLD FRONT WILL MOVE ACROSS THE TERMINAL SITES THIS EVENING WITH GUSTY NORTH WINDS IN ITS WAKE. THE OKLAHOMA PANHANDLE WILL HAVE A CHANCE TONIGHT FOR THOSE CLOUDS TO PRODUCE SOME SHOWERS AND THUNDERSTORMS AS LOW LEVEL LAPSE RATES WILL BE STEEP ENOUGH FOR INSTABILITY TO BE GENERATED AHEAD OF THE COLD FRONT. HOWEVER MODEL SOUNDINGS INDICATE QUITE A BIT OF DRY AIR IN THE LOW LEVELS SO VIRGA SHOWERS WILL BE MORE LIKELY. SHORT TERM GUIDANCE IS SUGGESTING THAT THE LOW LEVEL DRYNESS WILL BE OVERCOME AND SOME RAIN WILL MAKE IT TO THE GROUND SO HAVE LEFT SLIGHT POPS IN FOR THE EVENING HOURS. AS THE MID AND UPPER LEVEL TROUGH COMES THROUGH THE AREA SATURDAY.
WILL EXTEND THE HIGH RISK OF RIP CURRENTS UNTIL 7 AM SATURDAY BASED ON CURRENT FLAG REPORTS AND PERSISTENT ONSHORE SWELL. AN WITH THE HIGHER POPS ALONG THE COAST.
THE HIGH RES MODELS ARE TRYING TO SHOW SOME SHOWERS BLOSSOMING RIGHT ALONG THE FRONT THIS AFTERNOON BUT THEY ARE KEEPING THE MAJORITY OF THE PRECIP SOUTH OF OUR CWA.
A WARM FRONT WILL APPROACH THE REGION LATE TONIGHT, THEN MOVE INLAND SATURDAY. I SUSPECT THE NAM AND TO A LESSER EXTENT THE GFS MAY BE TOO BULLISH WITH THE AMOUNT AND COVERAGE AREA OF THE QPF FIELDS BECAUSE 500 MB HEIGHTS WILL ACTUALLY BE INCREASING AS THE RIDGE AXIS MOVES OVER THE AREA EARLY SATURDAY MORNING.
AS A COLD FRONT PUSHES SOUTHWARD THRU TEXAS SATURDAY NIGHT.
DEW POINTS IN THE MID 60S WILL KEEP LOW TEMPS ABOVE NORMAL IN THE LOW/MID 60S ACROSS SE GA AND MID/UPPER 60S ACROSS NE FL. SOUTHERLY FLOW WILL CONTINUE THROUGH MUCH OF THE WEEKEND REMAINING BELOW 15 KNOTS AS A COLD FRONT BECOMES STATIONARY TO THE NORTH OF THE COASTAL WATERS.
CHATTANOOGA AIRPORT, TN 42 73 55 70 / 0 10 20 60 KNOXVILLE MCGHEE TYSON AIRPORT, TN 40 72 51 69 / 0 10 10 50 OAK RIDGE, TN 39 72 52 71 / 0 10 10 50 TRI CITIES AIRPORT, TN 37 70 45 71 / 0 10 10 30.
956 PM CDT FRI MAR 25 2016 SFC RIDGING REMAINS ANCHORED OVER THE MS VALLEY SW INTO EXTREME SE TX THIS EVENING. DESPITE THE SFC RIDGING IN PLACE.
THIS HIGH IS NOTED BY THE BACKING WINDS OBSERVED BETWEEN THE SURFACE AND 850MB. AND LAPSE RATES ARE VERY WEAK IN THE LOWEST 3 KM. CLOUD DEVELOPMENT HAS BEEN NON-EXISTENT IN THE LOW AND MID- LEVELS.
ALREADY GETTING SOME HIGH CLOUD COVER AHEAD OF THE TROUGH.
HIGH PRESSURE WILL BE LOCATED OVER THE OHIO VALLEY TONIGHT.
SOME MID-LEVEL THETA-E ADVECTION INCREASING OVERNIGHT AHEAD OF THE LOW. KEPT SLIGHTLY WARMER TEMPS ACROSS THE SOUTHERN TWO-THIRDS OF THE FORECAST AREA. HIGHS MAY EVEN REACH 70 IN SPOTS JUST HEAD OF THE COLD FRONT IS PRECIP DOES NOT CONTAMINATE THINGS. THE GFS AND ECMWF ARE STILL IN GOOD AGREEMENT DEEPENING A LARGE WRN CONUS TROUGH. AND ALSO KEEPING THE BASED OF THE CLOSED LOW HANGING BACK OVER CA/AZ. AND A BETTER ROUND OF CONVECTION POSSIBLE WITH THE COLD FRONTAL PASSAGE LATER WED. FRIDAY LOOKS DRY WITH THE NRN STREAM DOMINATING OUR WEATHER AS A LARGE MEAN TROUGH SETTLES INTO ONTARIO.
/ISSUED 907 PM CDT FRI MAR 25 2016/ SKIES ARE MOSTLY CLEAR ACROSS THE FORECAST AREA THIS EVENING WITH TEMPERATURES RANGING FROM THE LOWER 40S TO LOWER 50S. HIGH PRESSURE WILL BE LOCATED OVER THE OHIO VALLEY TONIGHT.
1210 AM EDT SAT MAR 26 2016 AVIATION HIGH PRESSURE WILL BRING FAIR WEATHER INTO SATURDAY NIGHT.
HAVE UPDATED POPS TO REFLECT SOME CONVECTIVE BANDS A BIT FURTHER EAST OVER DENVER AS WELL AS PROLONGED THE HIGHER POPS TO THE SOUTHEAST INTO EARLY TOMORROW. LATEST MODELS BRING AN UPPER TROUGH INTO THE CWA OVERNIGHT THROUGH SATURDAY. THE HIGHEST AMOUNTS IN THE MOUNTAINS. FOOTHILLS AND PALMER RIDGE. 5 C COOLER THAN TODAY'S READINGS.
WITH THE AREA OF SUBSIDENCE BEHIND A SHORT WAVE TROUGH NOW TO THE ENE OF THE AREA AND WARMER SFC TEMPERATURES. LATEST MODEL SOLUTIONS SUGGEST THE DEVELOPMENT OF A WEAK MID LEVEL RIDGE ON SAT AND SUN ACROSS MOST OF SOUTH FLORIDA WITH A SLIGHTLY DRIER AIRMASS ESTABLISHING ALOFT. SATELLITE IMAGERY SHOWS YET ANOTHER SHORT WAVE TROUGH WITH PLENTY OF DEEP CONVECTION AND INSTABILITY AHEAD OF IT APPROACHING THE AREA FROM THE NW. WITH AN INCREASE IN EASTERLY FLOW KEEPING THE IMMEDIATE EAST COAST METRO IN THE LOW 80S ON SUN.
AND RADAR SEEMS TO BE FOLLOWING SUIT WITH LESS OF THE HIGHER REFLECTIVITY VALUES IN THE BAND THAT EARLIER THIS EVENING. COLD FRONT EXTENDED FROM BJI TO FFM. WATER VAPOR LOOP INDICATED SHORT WAVE TROUGH OVER WESTERN ONTARIO. SHORT WAVE HAS SENT A COLD FRONT INTO THE AREA TODAY.
A DRY AND WARMER WEEKEND CAN BE ANTICIPATED. SO A COMBINATION OF A COLD START TO THE NIGHT THEN CLEARING AND CALM CONDITIONS WILL LIKELY ALLOW FOR WIDESPREAD TEMPERATURES BELOW FREEZING BY MORNING. RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVERHEAD FOR THE WEEKEND.
ALTHOUGH MOST AREAS HAVE CHANGED TO -SN AHEAD OF COLD FRONT NOW REACHING KICR/KVTN. WATER VAPOUR SHOWED UPPER SUPPORT WITH MAIN COMPACT UPPER LOW SPINNING OVER FAR SOUTHWEST SD. THIS EVENING THROUGH SATURDAY NIGHT ADVECTING UPPER TROUGH CONTINUES TO SHIFT SE ACROSS THE NORTHERN PLAINS AS A STRONG COLD FRONT SETTLES SOUTH ACROSS THE DAKOTAS. COLD FRONT WILL CONTINUE TO SETTLE SOUTH ACROSS THE FA THIS EVENING. WINDS WILL VEER NNE AS THE COLD FRONT PUSHES INTO THE AREA THIS EVENING.
900 PM CDT FRI MAR 25 2016 PATCHY FROST STILL EXPECTED OVERNIGHT AS HIGH PRESSURE REMAINS SETTLED OVER THE REGION.
640 PM CDT FRI MAR 25 2016 TRANSITIONING TO A MUCH WETTER FORECAST LATE TONIGHT THROUGH SATURDAY AS AN UPPER TROUGH/COLD FRONT MOVES INTO THE REGION. PRECIPITATION ASSOCIATED WITH THE COLD FRONT COULD VERY WELL STAY JUST WEST OF NORTHEAST NEBRASKA TONIGHT. AND WITH COLDER AIR COMING IN WITH THE COLD FRONT. WITH DEEPER COLDER AIR ARRIVING WITH THE COLD FRONT IN NORTHEAST NEBRASKA. RANGING FROM SNOW OR SLEET OR FREEZING RAIN IN THE TRANSITION ZONE.
616 PM PDT FRI MAR 25 2016 High pressure will build into the region tonight for a brief drying trend.
1040 PM EDT FRI MAR 25 2016 A COLD FRONT EXITS EAST THIS EVENING.
/Issued 152 PM PDT FRI MAR 25 2016/ A weak back door cold front slides south tonight bringing easterly flow and slightly cooler temperatures for most areas Saturday.
/ISSUED 347 PM CDT FRI MAR 25 2016/ HIGH PRESSURE OVERHEAD WITH JUST A LITTLE CIRRUS MOVING ACROSS FROM THE SOUTHWEST. SATURDAY SHOULD BE WARMER AND A LITTLE MORE MOIST.
Meanwhile high clouds will be on the increase tonight as an upper trof shifts slowly eastward into the Plains within the southwest flow aloft.
THE LATE EVENING LOCAL SOUNDING SHOWS A DECREASE IN MOISTURE IN THE LOWEST LAYERS ON A LIGHTER SOUTHERLY FLOW ABOVE THE SURFACE. RIDGING WILL CONTINUE TO BUILD CLOSER TO THE LOCAL AREA OVERNIGHT AND THERE IS A LOWERING INVERSION JUST ABOVE H8.
1051 PM EDT FRI MAR 25 2016 A COLD FRONT WILL MOVE INTO THE AREA AND STALL THIS EVENING NEAR OR JUST SOUTH OF THE REGION THROUGH SATURDAY.
THE HIGH WILL REMAIN IN CONTROL OF THE WEATHER ACROSS THE TENNESSEE VALLEY THIS EVENING AND FOR MUCH OF SATURDAY. TEMPS SHOULD BE RUNNING AROUND 5 DEGREES COOLER THAN THOSE VALUES. HIGH PRESSURE TO OUR NORTH WILL SHIFT EASTWARD TONIGHT INTO SATURDAY.
A COLD FRONT WILL PUSH THROUGH THE TAF SITES AROUND 10-11Z WHICH WILL SHIFT WINDS FROM THE SOUTHWEST TO THE NORTH/NORTHWEST. /ISSUED 316 PM CDT FRI MAR 25 2016/ A SHORT WAVE TROUGH MOVING OVER THE ROCKIES TODAY HAS INDUCED BREEZY SOUTHWEST WINDS AGAIN. A DIFFERENT SHORT WAVE TROUGH MOVING ACROSS THE NORTHERN PLAINS WILL SEND A COLD FRONT THROUGH TONIGHT INTO EARLY SATURDAY MORNING. WINDS WILL QUICKLY VEER TO THE EAST- SOUTHEAST BY THE AFTERNOON IN RESPONSE TO THE NEXT APPROACHING SHORT WAVE TROUGH.
WORKING AGAINST FOG IS NORTHERLY WINDS TO MIX THE LOWER ATMOSPHERE AS WELL AS DRIER AIR FROM THE HIGH IN CANADA. RETURN FLOW AROUND THE HIGH WILL BRING WARM ADVECTION AND MOSTLY SUNNY SKIES.
A DRY AND WARMER WEEKEND CAN BE ANTICIPATED. CL RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVERHEAD FOR THE WEEKEND.
907 PM CDT FRI MAR 25 2016 SKIES ARE MOSTLY CLEAR ACROSS THE FORECAST AREA THIS EVENING WITH TEMPERATURES RANGING FROM THE LOWER 40S TO LOWER 50S. HIGH PRESSURE WILL BE LOCATED OVER THE OHIO VALLEY TONIGHT.
BETWEEN HIGH PRESSURE TO THE NORTHEAST AND LOW PRESSURE OVER W TX.
747 PM EDT FRI MAR 25 2016 HIGH PRESSURE WILL BUILD IN BRINGING A COOLER AIRMASS TO END THE WORK WEEK. EXPECT CLOUDS TO CONITNUE TO DIMINISH OVERNIGHT AS HIGH PRESSURE BUILDS NORTHEAST TOWARD UPSTATE NEW YORK AND EASTERN CANADA.
SURFACE DEW PTS IN THE LOWER 20S LOOKS LIKE GOOD BOTTOM FOR THE BETTER RADIATOR'S TONIGHT. THE CENTER OF THE HIGH LOOKS TO BE EAST BY 12Z SATURDAY. A WARMUP WILL THEN COMMENCE OVER THE WEEKEND AS UPPER LEVEL RIDGE TRANSLATES THROUGH THE CENTRAL GREAT LAKES ON SATURDAY.
1015 PM EDT FRI MAR 25 2016 HIGH PRESSURE WILL BUILD IN BRINGING A COOLER AIRMASS TO END THE WORK WEEK. EAST OF THE RIDGES. EXPECT CLOUDS TO CONITNUE TO DIMINISH OVERNIGHT AS HIGH PRESSURE BUILDS NORTHEAST TOWARD UPSTATE NEW YORK AND EASTERN CANADA.
800 PM EDT FRI MAR 25 2016 A COLD FRONT WILL MOVE INTO THE AREA AND STALL THIS EVENING NEAR OR JUST SOUTH OF THE REGION THROUGH SATURDAY.
DRY AND WARMER CONDS CAN BE EXPECTED ON SAT AS WINDS VEER TO A S/SELY DIRECTION.
RETURN FLOW AROUND THE HIGH WILL BRING WARM ADVECTION AND MOSTLY SUNNY SKIES.
COLD FRONT EXTENDED FROM BJI TO FFM. WATER VAPOR LOOP INDICATED SHORT WAVE TROUGH OVER WESTERN ONTARIO. SHORT WAVE HAS SENT A COLD FRONT INTO THE AREA TODAY.
946 PM EDT FRI MAR 25 2016 A COLD FRONT WILL MOVE INTO THE AREA AND STALL THIS EVENING NEAR OR JUST SOUTH OF THE REGION THROUGH SATURDAY.
726 PM EDT FRI MAR 25 2016 HIGH PRESSURE ARRIVES FOR THE WEEKEND.
THE COLD FRONT HAS ALREADY MOVED THROUGH KGUY AND KDHT. A COLD FRONT WILL MOVE ACROSS THE TERMINAL SITES THIS EVENING WITH GUSTY NORTH WINDS IN ITS WAKE. THE OKLAHOMA PANHANDLE WILL HAVE A CHANCE TONIGHT FOR THOSE CLOUDS TO PRODUCE SOME SHOWERS AND THUNDERSTORMS AS LOW LEVEL LAPSE RATES WILL BE STEEP ENOUGH FOR INSTABILITY TO BE GENERATED AHEAD OF THE COLD FRONT. HOWEVER MODEL SOUNDINGS INDICATE QUITE A BIT OF DRY AIR IN THE LOW LEVELS SO VIRGA SHOWERS WILL BE MORE LIKELY. SHORT TERM GUIDANCE IS SUGGESTING THAT THE LOW LEVEL DRYNESS WILL BE OVERCOME AND SOME RAIN WILL MAKE IT TO THE GROUND SO HAVE LEFT SLIGHT POPS IN FOR THE EVENING HOURS. AS THE MID AND UPPER LEVEL TROUGH COMES THROUGH THE AREA SATURDAY.
PATCHY FROST STILL EXPECTED OVERNIGHT AS HIGH PRESSURE REMAINS SETTLED OVER THE REGION.
859 PM EDT FRI MAR 25 2016 LOW PRESSURE WILL MOVE INTO NEW BRUNSWICK TONIGHT. HIGH PRESSURE WILL BUILD ACROSS THE REGION SATURDAY.
A DRY AND WARMER WEEKEND CAN BE ANTICIPATED. SO A COMBINATION OF A COLD START TO THE NIGHT THEN EVENTUAL CLEARING AND CALM CONDITIONS WILL LIKELY ALLOW FOR WIDESPREAD TEMPERATURES BELOW FREEZING BY MORNING. RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD OVERHEAD FOR THE WEEKEND.
904 PM CDT FRI MAR 25 2016 Forecast grids looking on track as low pressure slides east tonight and tomorrow. Mid and high clouds are expected to increase later tonight as the next low pressure system approaches the western Great Lakes.
00Z WATER VAPOR AND H4 RAP ANALYSIS SHOW MUCH OF THE CONUS NOW UNDER A VERY BROAD LONGWAVE TROUGH. THE FLORIDA PENINSULA RESIDES WITHIN THE EASTERN BASE REGION OF THIS TROUGH. BUT WATCHING THE EXPANDING AREA OF COOLER CLOUD TOPS TELL US THAT DECENT SYNOPTIC LIFT IS OCCURRING ON A TRAJECTORY THAT WOULD BRING RAINFALL A BIT FURTHER SOUTH.
THIS IS IN RESPONSE TO HIGH PRESSURE BUILDING INTO THE REGION WHICH WILL BRING SUNSHINE AND DRIER CONDITIONS ALONG WITH ABOVE NORMAL TEMPERATURES.
1200 AM EDT SAT MAR 26 2016 HIGH PRESSURE WILL BUILD IN BRINGING A COOLER AIRMASS TO END THE WORK WEEK. EAST OF THE RIDGES. EXPECT CLOUDS TO CONITNUE TO DIMINISH OVERNIGHT AS HIGH PRESSURE BUILDS NORTHEAST TOWARD UPSTATE NEW YORK AND EASTERN CANADA.
717 PM EDT FRI MAR 25 2016 HIGH PRESSURE WILL DOMINATE THE WEATHER OVER THE REGION THROUGH SATURDAY.
1007 PM EDT FRI MAR 25 2016 HIGH PRESSURE WILL DOMINATE THE WEATHER OVER THE REGION THROUGH SATURDAY.
00 UTC RAOB ANALYSIS IN CONJUNCTION WITH IR IMAGERY REVEALED THAT A CONVEYOR OF UPPER LEVEL MOISTURE EXTENDED FROM BAJA CALIFORNIA UP THROUGH PORTIONS OF WEST TEXAS AHEAD OF AN UPPER TROUGH ACROSS SOUTHERN NV/CA. HOWEVER NO STRATUS DEVELOPMENT IS EXPECTED WITH WINDS IN THE LOWEST 5 KFT RELATIVELY WEAK.
BUT BELIEVE THAT THE LOWER VISIBILITIES WILL REMAIN FURTHER SOUTH NEAR THE CORE OF THE RIDGE IN INDIANA. WITH TEMPERATURES BEING DOWN AROUND FREEZING. HAVE AMENDED THE MKE/ENW TAFS ALREADY TO ADD THE LOWER CONDITIONS IN BETWEEN 6-9Z AND HAVE IT LINGERING UNTIL 16Z SATURDAY MORNING. CURRENT THINKING IS THAT THE 1/4SM VIS WILL REMAIN FURTHER SOUTH NEAR THE CORE OF THE HIGH. MKE/ENW HAVE THE HIGHEST CHANCES OF SEEING THE FOG WITH UES THE NEXT FOLLOWED BY MSN. HIGH PRESSURE IS EXPECTED TO REMAIN TO THE SOUTHEAST OF THE AREA DURING THIS PERIOD.
UPPER TROUGH BEGINS TO QUICKLY MOVE EASTWARD. MOISTURE STARVED UPPER TROUGH MOVES THROUGH THE GREAT BASIN. MAINLY OVER THE HIGHER PEAKS. AS TROUGH SWINGS THROUGH THE STATE WILL CARRY MAINLY ISOLATED POPS FOR THE MOUNTAINS. AND CUT BACK POPS SLIGHTLY OVER THE LOWER ARK VALLEY. NORTH WINDS WILL LIKELY INCREASE OVER THE PLAINS IN THE AFTERNOON AS COLD FRONT COMES THROUGH. MAX TEMPS LOOKS SLIGHTLY COOLER MOST LOCATIONS AS CLOUDS WILL THICKEN. AND WITH COLD FRONT MOVING THROUGH. MODELS INDICATE THE UPPER TROUGH WILL BE EXITING THE STATE SAT NIGHT. COLD N-NW FLOW ALOFT SETTLES IN BEHIND THE TROUGH PRODUCING A VERY COLD NIGHT.
WITH BROAD UPPER RIDGING TO THE EAST AND BROAD UPPER TROUGH PUSHING IN FROM THE WEST. WITH A COLD FRONT APPROACHING THE CWA. COLD FRONT WILL PASS THROUGH THE CWA TONIGHT AS UPPER TROUGH PUSHES INTO THE CENTRAL CONUS. LACK OF MOISTURE WILL KEEP THE FRONT/TROUGH PASSAGE DRY.
41 RELATIVELY QUIET FCST PERIOD ON TAP AS REGIME WILL BE DOMINATED BY A STRONG RIDGE ACROSS THE EAST CONUS.
959 PM EST FRI DEC 4 2015 A LARGE RIDGE OF HIGH PRESSURE WILL BECOME CENTERED OVER PENNSYLVANIA THIS WEEKEND.
HIGH PRESSURE REMAINS IN CONTROL ACROSS THE AREA AND IT WILL BE ON THE COLD SIDE. THE ONLY FORECAST CONCERN TONIGHT REMAINS THE POSSIBILITY OF SOME FREEZING FOG IN SOME OF THE RIVER VALLEYS. THEREFORE EXPECTING COOLER NIGHTS AND ABOVE NORMAL AFTERNOON TEMPS. RIGHT NOW LOOKS LIKE BETTER CHANCES OF FOG/FREEZING FOG TONIGHT WOULD BE IN THE RIVER VALLEYS. WITH TEMPS IN THE LOW TO MID 20S VALLEYS AND MID TO UPPER 20S RIDGES. THIS HIGH IS PROGGED TO SHIFT EAST THROUGH THE REST OF THE PERIOD. GIVEN THE HIGH SHIFTS EAST RETURN FLOW LOOKS TO BE ENOUGH TO ALLOW FOR SOME SLIGHT MODERATION INTO THE LOW TEMPS FOR SATURDAY NIGHT IN WESTERN PORTIONS OF THE CWA.
Low level moisture will linger overnight leading to patchy areas of freezing fog though the middle part of Saturday morning across much of the region. Whitebird Hill on US-95 at 4200 feet, saw some snow accumulation this morning, but has since warmed up to above freezing. Snow will likely develop after 6 pm MST from Georgetown Lake to Butte and with below freezing temperatures, roads could become slick. Patchy freezing fog is possible across central Idaho and western Montana later tonight, but confidence is low on what locations will see the worst visibility. On top of that chance, there is a low threat for freezing drizzle especially for valleys in northwestern Montana.
911 PM EST FRI DEC 4 2015 DRY HIGH PRESSURE WILL REMAIN ACROSS THE REGION THROUGH THE REST OF THE WEEK.