Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE HIGH PRESSURE CENTER WILL TRANSLATE EASTWARD DURING THE AFTERNOON AND TURN THE WIND TO THE EAST/SOUTHEAST AT SPEEDS GENERALLY LESS THAN 7 KNOTS. WITH ANOTHER FREEZE IN COOLER VALLEY AREAS AS WELL AS NORTHEAST OF A LINE FROM BOWIE TO ATHENS. 10 MPH SOUTH WINDS WILL BRING WARMER AIR TUESDAY AFTERNOON AND HIGHS SHOULD REACH THE 50S EVERYWHERE. CLOUDS ARE EXPECTED TO BE THICKER IN THE FAR SOUTHERN COUNTIES IN RESPONSE TO THE UPPER LOW TRANSITING ACROSS COASTAL TX AND THOSE AREAS WILL BARELY REACH 50.
WHICH WILL ALLOW SEVERAL WEAK DISTURBANCES TO IMPACT THE HIGHER TERRAIN OF NW COLORADO.
435 AM MST MON FEB 2 2015 LATEST SATELLITE AND UPPER AIR ANALYSIS INDICATE A LONG WAVE RIDGE OVER THE WEST COAST AND A LONG WAVE TROUGH CENTERED OVER THE MISSISSIPPI RIVER VALLEY. WITH SOME SUBTLE SMALLER SCALE TROUGHS. AT THE SURFACE A WARM FRONT WAS PROGRESSING EAST ACROSS THE HIGH PLAINS.
1100 AM EST MON FEB 2 2015 LIGHT SNOW ASSOCIATED WITH DEPARTING LOW PRESSURE WILL AFFECT THE REGION TODAY. A MUCH COLDER AIRMASS WILL SETTLE ACROSS THE REGION TODAY IN THE WAKE OF THE LOW.
439 AM CST MON FEB 2 2015 ANOTHER CANADIAN COLD FRONT PUSHED THROUGH THE AREA LAST NIGHT WITH STRONG NORTH WINDS IN THE WAKE AND TEMPERATURES CONTINUING TO DROP BEHIND THE FRONT. SUB-ZERO WEATHER EXTENDS DOWN INTO THE DAKOTAS THIS MORNING WITH FREEZING TEMPS AS FAR SOUTH AS SHV AT THIS TIME. CLEAR SKIES AND LIGHT WINDS TONIGHT WILL ALLOW TEMPS TO FALL INTO THE 30S WITH SOME FREEZING TEMPS EXPECTED OVER CNTRL LOUISIANA BY SUNRISE.
Mostly cloudy skies across interior NorCal early this morning as moisture continues to move up from the southwest and over the broad ridge along the west coast. Ridge of high pressure flattens today and Tuesday as several disturbances move by to the north.
650 AM CDT MON MAR 9 2015 THE LATEST SFC ANALYSIS WAS INDICATING ELONGATED WEAK RIDGE EXTENDING FROM WEST-TO-EAST FROM THE CENTRAL PLAINS. AND ACTIVE TROFFINESS OVER THE GRT BSN AND SW PLAINS. BUT UPSTREAM SECONDARY UPPER TROF CURRENTLY ACRS UT/WEST CO WILL LOOK TO SCOOT ACRS WESTERN IA BY TUE MORNING. THIS COMBINED WITH THICKENING HIGH CLOUD SHIELD ACRS AT LEAST THE SOUTHEASTERN THIRD OF THE CWA OFF LOWER MS RVR VALLEY PASSING LOW PRESSURE COMPLEX. WILL MAKE FOR LOWS ONLY IN THE LOW TO MID 30S IN THE SOUTH TONIGHT. EXPECT LIGHT SOUTH WIND TO MAINTAIN ENOUGH ALONG WITH THE HIGH CLOUDS/CIRRUS TO LIMIT MUCH OF ANY FOG THREAT LATE TONIGHT.
ICING SHOULD NOT BE PROBLEM FOR THE LOWER ALTITUDES WITH FREEZING LEVELS ACROSS THE AREA FAIRLY CONSISTENT. AS AN UPPER TROF CONTINUES TO DIG SEWD ACROSS NRN MEXICO. THIS TROF WILL TAKE A MORE EWD TURN TODAY. TROF IS FCST TO LINGER OVER TX AND BECOME CUT OFF AS WE MOVE INTO THE MIDDLE PART OF THE WORK WEEK.
WEAK HIGH PRESSURE WILL BUILD EAST FROM THE EASTERN GREAT LAKES THIS AFTERNOON. AND SLIDE OFFSHORE TUESDAY NIGHT AS A WEAK COLD FRONT SLIDES SOUTH THROUGH THE REGION.
HIGH PRESSURE WILL BUILD INTO THE AREA LATER TODAY INTO TUESDAY.
950 AM MDT Mon Mar 9 2015 Warm temps and breezy conditions are expected for today as the high pressure aloft continues to dominate the weather.
1159 AM EDT MON MAR 9 2015 DRY AND SEASONABLY WARM TEMPERATURES EXPECTED TODAY BEFORE AN AREA OF LOW PRESSURE CROSSING THE MID ATLANTIC STATES RESULTS IN RAIN ACROSS THE UPPER OHIO ON TUESDAY. WARMER TEMPERATURES ANTICIPATED TONIGHT AS SOUTHERLY FLOW AHEAD OF LOW PRESSURE APPROACHING FROM THE SOUTH INCREASES OVERNIGHT.
THE 15Z SURFACE ANALYSIS INDICATED THAT AN INVERTED TROUGH WAS EXTENDING NORTHEAST OUT TEXAS. THEN ANOTHER ROUND OF LIGHT RAIN BEGINS TO SPREAD INTO THE AREA BETWEEN 16-17Z AND AS THE LOWER LEVELS SATURATE.
An upper level trough lies over the SWrn states with a +PV anomaly over W TX.
1102 AM EDT MON MAR 9 2015 A MORNING ANALYSIS SHOWS LARGE-SCALE RIDGING GOVERNING THE WEATHER PATTERN ACROSS THE REGION.
953 AM PDT MON MAR 9 2015 HIGH PRESSURE AND ONSHORE FLOW WILL BRING SOME OVERNIGHT LOCALLY DENSE FOG TO IMMEDIATE COASTAL AREAS.
WEAK SURFACE COLD FRONT HAS GRADUALLY SETTLED SOUTH ACROSS SOUTH CENTRAL KANSAS EARLY THIS MORNING. WITH A BIT STRONGER TROF MOVING FROM THE SOUTHERN PLAINS ACROSS THE OZARKS TONIGHT. THE REST OF THE AREA IS EXPECTED TO REMAIN DRY WITH TEMPERATURES A TAD COOLER THOUGH REMAINING ABOVE EARLY MARCH CLIMO.
QUASI WARM FRONTAL BOUNDARY WILL SHIFT SLOWLY NORTHWARD UP THE FLORIDA PENINSULA TONIGHT AND INTO SOUTH GEORGIA AND THE INCREASING DEWPOINTS/MOISTURE SHOULD LEAD TO AREAS OF FOG/PATCHY DENSE FOG AFTER MIDNIGHT ACROSS ALL AREAS AND EVEN ALONG THE COOLER NEARSHORE COASTAL WATERS AND A FEW OF THE HI-RES MODELS ARE SUGGESTING THE DENSE FOG MAY BECOME WIDESPREAD BY MORNING. POTENTIAL FOR SEA FOG DEVELOPMENT LATER TONIGHT AND LINGERING INTO TUESDAY AS DEWPOINTS INCREASE OVER THE COOLER NEARSHORE WATERS.
LAST EVENING'S SNOW EVENT THAT MODELS PREDICTED FOR THE HIGHER TERRAIN IN SUMMIT AND PARK COUNTIES NEVER REALLY MATERIALIZED. HIGH TEMPS ON THE PLAINS WOULD PROBABLY BE A SHADE COOLER THAN YESTERDAY. INSTEAD TODAY/S HIGHS SHOULD BE 1-3C WARMER. HIGH COUNTRY TEMPS ALSO A DEG OR TWO WARMER TODAY. WHEREAS MIN TEMPS IN THE HIGH COUNTRY ARE EXPECTED TO RETREAT A DEG OR TWO WITH A CLEAR DRY ATMOSPHERE.
1158 AM EDT MON MAR 9 2015 WEAK LOW PRESSURE WILL PUSH THROUGH NORTHERN NEW ENGLAND TODAY. HIGH PRESSURE BUILDS SOUTH OF NEW ENGLAND TONIGHT AND SHIFTS OFFSHORE ON TUESDAY.
THAT IS EXPECTED TO CHANGE THROUGH THE COURSE OF THE DAY AS THE LOWER ATMOSPHERE CONTINUES TO MOISTEN. RAIN AMOUNTS HAVE BEEN ON THE LOW SIDE ACRS INTERIOR SE TX WHERE THE HEAVIER RAIN HAS BEEN FALLING FOR THE PAST SEVERAL HOURS. THIS ACTIVITY WAS OCCURRING COURTESY OF AN IMPULSE ALOFT APPROACHING FM THE SW AND A WEAK COASTAL SFC TROF. THE AFOREMENTIONED COASTAL TROF EXTENDS ALONG THE TX COAST NE ALONG THE LA COAST TOWARD SE LA WITH LT E TO NE WINDS ACRS THE AREA. THE AREA WILL REMAIN ON THE MOIST DOWNSTREAM SIDE OF THE TROF. LOW PRES IS EXPECTED TO DEVELOP ALONG THE COASTAL TROF OVER SE TX TODAY. THIS WILL BRING A WARM FRONT NORTH ACRS THE REGION DURNIG THE AFTN. DRAGGING A WEAK COLD FRONT THROUGH THE AREA. WITH THE UPR TROF BECOMING STATIONARY.
WARM FRONT MAY APPROACH SOUTHERN CWA BY LATE AFTN. SOME EMBEDDED CONVECTION POSSIBLE NEAR WARM FRONT. ICING SHOULD NOT BE PROBLEM FOR THE LOWER ALTITUDES WITH FREEZING LEVELS ACROSS THE AREA FAIRLY CONSISTENT. AS AN UPPER TROF CONTINUES TO DIG SEWD ACROSS NRN MEXICO. THIS TROF WILL TAKE A MORE EWD TURN TODAY. TROF IS FCST TO LINGER OVER TX AND BECOME CUT OFF AS WE MOVE INTO THE MIDDLE PART OF THE WORK WEEK.
Meanwhile, weak upper ridging will become established over the SE CONUS. Expect to see increasing clouds from south to north through the day as deeper moisture ahead of a western Gulf of Mexico system begins to spill over top of the ridge axis. Some of the higher temperatures could actually be in our NE where cloud cover holds off the longest. Climatology would suggest values this high to be around the 99th percentile and 2 standard deviations above normal for this time of year. Temperatures should only bottom out in the low and mid 40s tonight. Temperatures could easily reach the low and mid 60s south of this boundary (Tennessee border over to the Lake Cumberland region) and only reach the upper 40s and low 50s north of the boundary.
730 AM EDT MON MAR 9 2015 HIGH PRESSURE CENTERED OVER THE OHIO VALLEY WILL REMAIN IN CONTROL OF OUR WEATHER THROUGH MONDAY NIGHT. ON TUESDAY LOW PRESSURE ALONG THE GULF COAST WILL MAKE ITS WAY TOWARD THE OHIO VALLEY. HIGH PRESSURE WILL BUILD BACK IN FOR THE MIDDLE PART OF THE WEEK. LIGHT RAIN AND SNOW MOVING THROUGH THE AREA DURING THE OVERNIGHT HOURS WILL MOVE EAST BY DAWN OR SO AS HIGH PRESSURE AND DRY AIR MOVE IN FROM THE WEST. MOISTURE WILL BEGIN INCREASING FROM THE SOUTH AHEAD OF THE LOW DEVELOPING IN TX/LA. TUESDAY THE LOW WILL MOVE NORTHEAST EVENTUALLY REACHING THE LOWER OHIO VALLEY TUESDAY EVENING. MOISTURE WILL INCREASE ACROSS THE AREA FROM THE SOUTH AHEAD OF THE LOW.
GENERALLY QUIET WEATHER WILL RETURN THIS AFTERNOON WITH WARMER TEMPERATURES THROUGH THE MIDDLE OF THE WEEK. CANADIAN HIGH PRESSURE WILL KEEP DRY WEATHER OVER THE REGION, BUT BRING COOLER AIR WITH SLIGHTLY BELOW NORMAL TEMPERATURES. 850MB TEMPERATURES WILL BE WARMER AS SOUTHERLY FLOW CONTINUES OVER THE REGION, BUT PARTLY CLOUDY TO MOSTLY CLEAR SKIES WILL ALLOW FOR RADIATIONAL COOLING IN WINDS GENERALLY 5KTS OR LESS. EXPECT RESIDUAL RIDGING AT THE SURFACE AND MAIN ENERGY OF THE NORTHERN SYSTEM BEING FAR TO THE NORTH TO KEEP THE NORTH COUNTRY DRY. THIS NORTHERLY SYSTEM TRACKING OVER JAMES BAY WILL INCREASE SOUTHERLY FLOW AND BRING WARMER TEMPERATURES OVER THE REGION.
1052 AM MDT Mon Mar 9 2015 Warm temps and breezy conditions are expected for today as the high pressure aloft continues to dominate the weather. High pressure will keep the air mass dry and stable.
1008 AM EDT MON MAR 9 2015 HIGH PRESSURE CENTERED OVER THE OHIO VALLEY WILL REMAIN IN CONTROL OF OUR WEATHER THROUGH MONDAY NIGHT. ON TUESDAY LOW PRESSURE ALONG THE GULF COAST WILL MAKE ITS WAY TOWARD THE OHIO VALLEY. HIGH PRESSURE WILL BUILD BACK IN FOR THE MIDDLE PART OF THE WEEK. LIGHT RAIN AND SNOW MOVING THROUGH THE AREA DURING THE OVERNIGHT HOURS WILL MOVE EAST BY DAWN OR SO AS HIGH PRESSURE AND DRY AIR MOVE IN FROM THE WEST. MOISTURE WILL BEGIN INCREASING FROM THE SOUTH AHEAD OF THE LOW DEVELOPING IN TX/LA. TUESDAY THE LOW WILL MOVE NORTHEAST EVENTUALLY REACHING THE LOWER OHIO VALLEY TUESDAY EVENING. MOISTURE WILL INCREASE ACROSS THE AREA FROM THE SOUTH AHEAD OF THE LOW.
716 AM EDT MON MAR 9 2015 WEAK LOW PRESSURE WILL PUSH THROUGH NORTHERN NEW ENGLAND TODAY. HIGH PRESSURE BUILDS SOUTH OF NEW ENGLAND TONIGHT AND SHIFTS OFFSHORE ON TUESDAY.
935 AM EDT MON MAR 9 2015 WEAK LOW PRESSURE WILL PUSH THROUGH NORTHERN NEW ENGLAND TODAY. HIGH PRESSURE BUILDS SOUTH OF NEW ENGLAND TONIGHT AND SHIFTS OFFSHORE ON TUESDAY.
/ISSUED 413 AM CDT MON MAR 9 2015/ AN UPPER LOW CURRENTLY OVER NORTHERN MEXICO. AHEAD OF THE LOW. RAIN CHANCES BEGIN TO TAPER OFF FROM WEST TO EAST TUESDAY AS THE UPPER LOW LIFTS THROUGH THE SOUTHERN PLAINS.
Mid level low pressure area near KMAF is expected to slowly drift eastward the next 24 hours. /ISSUED 410 AM CDT Mon Mar 9 2015/ An upper level low will slowly move east today causing rain chances to increase mainly south and east of a line from Marfa to Snyder. The low will eject northeast today but an upper trough will remain through Tuesday leaving slight rain chances mainly in the higher elevations west of the Pecos River.
645 AM CDT Mon Mar 9 2015 We're watching moisture transport across Oklahoma and Arkansas this morning in advance of a quasi-cutoff trough of low pressure. Highs on will range from the lower 50s over the eastern Ozarks, to the middle 60s across the Osage Plains.
1025 AM EDT MON MAR 9 2015 RIDGE AXIS THAT WAS OVER THE DEEP SOUTH YESTERDAY HAS REPOSITIONED ITSELF OVER THE WRN ATLC WITH ITS TRAILING AXIS DRAPED OVER THE FL PANHANDLE. POSITION OF THE RIDGE AXIS HAS PREVENTED THE ANTICIPATED NWD ADVECTION OF A REMNANT FRONTAL MOISTURE BAND FROM THE S PENINSULA WHILE GENERATING A STEADY E/SERLY FLOW THRU THE H100-H70 LYR. RIDGE AXIS OVER THE FL PANHANDLE EXTENDING EWD TOWARD BERMUDA WILL GENERATE A LIGHT TO GENTLE ERLY BREEZE ACRS THE LCL ATLC.
DRAGGING A COASTAL TROUGH WITH IT. BUT THE CONTINUED ADVECTION OF COOL/MOIST AIR IN THE LOW-LEVELS WILL SLOW THE LIFTING OF CEILINGS. /ISSUED 410 AM CDT MON MAR 9 2015/ A SHORT WAVE TROUGH WILL ROTATE ACROSS SOUTH TEXAS TODAY AND BRING NUMEROUS SHOWERS TO THE ENTIRE REGION.
1003 AM EDT MON MAR 9 2015 MID LEVEL RIDGING REMAINS STRONG OVER SOUTH FLORIDA THIS MORNING RESULTING IN MOSTLY SUNNY SKIES. HIGH PRESSURE TO THE EAST WILL KEEP AN EAST FLOW ACROSS SOUTH FLORIDA FOR THE NEXT SEVERAL DAYS. TOMORROW WILL SEE ONLY A SLIGHT CHANCE FOR SHOWERS AS AN UPPER LEVEL RIDGE BUILDS.
942 AM CDT MON MAR 9 2015 TEMPS ARE ALREADY RUNNING ABOUT 5F WARMER THAN AT THIS TIME YESTERDAY. WITH SOME DIFFERENCES WITH THE GFS COOLER THU. PREFER THE WARMER ECMWF THAT HAS BEEN THE BEST WITH THIS VERY WARM REGIME WHERE THERE IS NO SNOW LEFT. 925MB TEMPS ARE ABOUT 5C WARMER THAN YESTERDAY. SO AREAS IN THE VALLEY SHOULD WARM INTO THE LOW/MID 50S. GENERALLY IN THE LOW/MID 30S.
1000 AM PDT Mon Mar 9 2015 Above normal temperatures continue into Tuesday under strong high pressure.
1041 AM EDT MON MAR 9 2015 HIGH PRESSURE WILL BUILD IN THE WAKE OF THIS MORNINGS UPPER DISTURBANCE AND PRODUCE A DRY AND SEASONABLY WARM AFTERNOON. LOW PRESSURE CROSSING THE THE MID ATLANTIC STATES WILL SPREAD SOME RAIN ACROSS THE UPPER OHIO ON TUESDAY. AND WENT TOWARDS WARMER GFS MOS AND OLDER SREF MEANS FOR OVERNIGHT LOWS AS DROPOFF SHOULD BE LIMITED BY DEVELOPING WARM ADVECTION IN ADVANCE OF A DISTURBANCE EMERGING FROM THE MISSISSIPPI VALLEY.
Dry NW flow aloft will continue today with an upper trough to the east and upper ridging to the west. At the surface, lee troughing will extend southward through eastern NM today and downsloping SW winds at the surface will become more established areawide. Upper ridging (to the west) and 850mb thermal ridge will shift eastward Saturday, allowing temps to warm to the upper 80s to near 90 across the CWA.
/ISSUED 852 PM CDT THU MAR 26 2015/ COLD FRONT MOVING ACROSS LOWER ACADIANA INTO THE EASTERN COASTAL WATERS THIS EVENING. /ISSUED 426 PM CDT THU MAR 26 2015/ A COLD FRONT IS EXITING LOWER ACADIANA THIS EVENING WITH TEMPERATURES FALLING ACROSS SOUTHEAST TEXAS AND WESTERN LOUISIANA. HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH THE WEEKEND WITH COOL MORNING LOWS AND MILD AFTERNOON HIGH TEMPERATURES.
AXIS OF HIGH PRESSURE STRETCHED FROM SOUTHERN CANADA TO THE COLORADO FRONT RANGE. A STRONG RIDGE OF HIGH PRESSURE HAS BUILT OVER THE WESTERN UNITED STATES. WARMER TEMPERATURES LIKELY TODAY AS SOUTHWEST/DOWNSLOPE FLOW DOMINATES. MAIN REMAINING QUESTION IS HOW FAR WEST THIS WARMER AIR REACHES. COOL TEMPERATURES EXPECTED EAST OF HIGHWAY 83 AS A RESULT OF LINGERING CLOUDS/SHOWERS AND A LATE ARRIVAL FOR WARMER WESTERN AIR. MUCH WARMER TEMPERATURES ARE FORECAST SATURDAY AS THE RIDGE REACHES ITS PEAK INTENSITY. SOME FORECAST GUIDANCE NUDGED FORECAST HIGHS DOWN SLIGHTLY BUT FEEL THIS GUIDANCE IS NOT GRASPING RECENT TRENDS AND FULL EXTENT OF WARMER AIR ALOFT. A VIGOROUS CLIPPER SYSTEM BREAKS DOWN THE HIGH PRESSURE RIDGE AS IT MOVES FROM THE PACIFIC NORTHWEST TOWARDS THE HIGH PLAINS. THIS SYSTEM WILL ALSO FORCE A COLD FRONT THROUGH.
HIGH TEMPERATURES IN THE LOW 60S NORTON AND HILL CITY WITH UPPER 60S TO LOW 70S ACROSS THE REMAINDER OF THE AREA. UPPER LEVEL RIDGE WILL CONTINUE TO TRANSITION EAST ACROSS THE PLAINS THROUGH SATURDAY MORNING.
359 AM EDT FRI MAR 27 2015 ARCTIC HIGH PRESSURE WILL DROP SLOWLY SOUTHEAST FROM THE PLAINS TODAY REACHING THE OHIO VALLEY ON SATURDAY.
310 AM EDT FRI MAR 27 2015 LOW PRESSURE WILL EXIT INTO THE MARITIMES THIS MORNING. A COLD FRONT WILL DROP SOUTH ACROSS THE AREA TODAY. AND LOW PRESSURE PASSING OFFSHORE.
321 AM CDT FRI MAR 27 2015 BACKDOOR COLD FRONT CONTINUES TO PUSH SOUTHWEST ACROSS THE FORECAST AREA. WITH THE NE-E WINDS ASSOCIATED WITH THIS COLD AREA OF HIGH PRESSURE MOVING ACROSS THE MISSOURI VALLEY. THINK THE COOLER TEMPS WILL BE SHORT LIVED. AS THE COOL AREA OF HIGH PRESSURE AREA QUICKLY SLIDES EAST OF THE AREA TONIGHT. AS THIS RIDGE MOVES EAST. GFS IS DRIER IN THE LOW LAYERS WHICH WOULD SUGGEST ONLY A SPRINKLE CHANCE OR POSSIBLY JUST VIRGA. AS ANOTHER COLD FRONT BEGINS TO DROP SOUTH ACROSS THE NORTHERN PLAINS. CLIMBING INTO THE LOW 70S.
CHALLENGING FORECAST EARLY THIS MORNING WITH RESPECT TO (MOSTLY ELEVATED) RAIN AND SNOW SHOWERS BEING DRIVEN SOUTH ALONG A 850-700 MB BAROCLINIC/WARM FRONTOGENETIC ZONE FROM WESTERN NEBRASKA INTO WESTERN KANSAS. THE NAM SUGGESTED A DRY FORECAST THIS MORNING FOR OUR AREA, WITH NO PRECIPITATION BEING GENERATED DESPITE THE INCREASE IN 2D FRONTOGENESIS THROUGH THE HIGHWAY 83 CORRIDOR. HOWEVER THE CONSENSUS OF MODELS SUPPORTS 60S ACROSS A LARGE PORTION OF THE FORECAST AREA BY AFTERNOON WITH MILDER OVERNIGHT LOWS TONIGHT IN THE LOW TO MID 40S AND GENERALLY MORE ISOLATED 30'S.
HIGH PRESSURE ALOFT WILL RESULT IN A SUNNY AND WARM DAY TODAY.
1103 PM MDT THU MAR 26 2015 A LARGE RIDGE OF HIGH PRESSURE ALONG THE WEST COAST WILL BE SHIFTING FARTHER INLAND THROUGH FRIDAY. MOISTURE TOPPING THE RIDGE WILL RIDE THIS NW FLOW INTO CO THROUGH EVENING FOR SOME CLOUDINESS FOR NW CO AND DOWN ALONG THE DIVIDE. BOTH NAM AND GFS SHOW WEAK DISTURBANCES THESE SHOULD HAVE LITTLE EFFECT ON ANY OTHERWISE MOSTLY SUNNY AND WARMER DAY. TEMPERATURE GUIDANCE SUGGESTS THAT LOW TEMPS IN THE FRUIT GROWING AREAS OF THE GRAND VALLEY AND NORTH FORK VALLEY SHOULD GENERALLY STAY ABOVE FREEZING TONIGHT. COULD STILL SEE POCKETS OF FREEZING TEMPS THOUGH.
MAINLY MVFR CONDITIONS WILL DOMINATE THE TAF SITES THROUGH MUCH OF THIS MORNING, AS PLENTY OF LOW CIGS ARE LINGERING BEHIND THE RAPIDLY APPROACHING COLD FRONT. AS THIS COLD FRONT PASSES THROUGH, GUSTY NW WINDS ALONG WITH MUCH COOLER AND DRIER AIR WILL MOVE INTO THE REGION FROM THE NW, WITH HIGH TEMPERATURES ONLY RANGING FROM THE LOWER 60S OVER SE AL TO THE LOWER TO MIDDLE 70S ACROSS THE FAR SE FL BIG BEND.
500 MB AND SURFACE RIDGING WILL BE BUILDING BACK IN OVER DEEP SOUTH TX IN THE WAKE OF THE FROPA YESTERDAY. WILL GO WITH A GENERAL BLEND OF THE SHORT TERM TEMP GUIDANCE LEANING TO THE WARMER SIDE OF GUIDANCE FOR HIGHS.
We'll see a weak back-door cold front move into the Big Country and Heartland, stalling from near a Hamlin-Brownwood line.
135 AM EDT FRI MAR 27 2015 A DEEP UPPER LVL TROUGH OVER THE MISSISSIPPI VALLEY WILL SWING EAST ACROSS PENNSYLVANIA THIS WEEKEND. RADAR SHOWS RAIN TRAILING THE COLD FRONT ALL THE WAY BACK WEST VA AND EASTERN KENTUCKY. TO ARND 40F ACROSS THE LOWER SUSQ VALLEY. APPROACH OF UPPER LVL TROUGH COULD SUPPORT A FEW PM SNOW SHOWERS. MAX TEMPS SHOULD RANGE FROM ONLY ARND FREEZING OVR THE NW MTNS. UPPER TROF DEEPENING OVER THE EASTERN U. SIGNIFICANT PRECIPITATION ASSOCIATED WITH THIS TROF SHOULD HAVE CONCLUDED BY DAYTIME FRIDAY.
258 AM EDT FRI MAR 27 2015 HIGH PRESSURE WILL BEGIN TO BUILD IN FROM THE WEST TODAY AND TONIGHT. LOW PRESSURE WILL TRACK WELL SOUTH OF THE GULF OF MAINE ON SATURDAY.
DRY SURFACE RIDGING BUILDING OVER DEEP SOUTH TX IN THE WAKE OF THE FROPA YESTERDAY WILL MAINTAIN VFR CONDITIONS THROUGHOUT THE NEXT 24 HOURS FOR ALL OF THE RGV AIRPORTS. COLD FRONT HAS MOVED SOUTH OF THE REGION IN THE PAST SEVERAL HOURS. THE COMBINATION OF THE UPPER TROUGH WITH GOOD SPEED DIVERGENCE AND DIFFLUENCE ALOFT AS THE TROUGH MOVES EAST IS PROVIDING A FAVORABLE MID LEVEL ASCENT FOR SOME THUNDERSTORMS TO DEVELOP AND PRODUCE HAIL. HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE DAY AND FRIDAY NIGHT WITH TEMPERATURES IN THE UPPER 50S.
WITH THE EXCEPTION OF THE HIGHEST TERRAIN BORDERING VIRGINIA. WITH A DEEPENING TROUGH AXIS CURRENTLY TAKING SHAPE ACROSS THE CENTRAL CONUS TO MOVE EAST ACROSS THE MISSISSIPPI VALLEY THROUGH TONIGHT. THE TROUGH WILL USHER IN MUCH COLDER AIR ALOFT. CONVECTION WILL DIMINISH INTO THIS EVENING AS THE TROUGH AXIS SHIFTS EAST. HIGH PRESSURE WILL BUILD IN FROM THE GREAT LAKES LATER THIS EVENING. WITH DECREASING CLOUDS AND LOWS GETTING DOWN INTO THE LOW TO MID 20S FOR MOST LOCATIONS.
208 AM EDT FRI MAR 27 2015 MAINLY DRY AND UNSEASONABLE COOL WEATHER IS EXPECTED LATE TONIGHT THROUGH SATURDAY NIGHT AS CANADIAN HIGH PRESSURE BUILDS INTO THE REGION. LOWS TONIGHT WILL DROP INTO THE LOWER TO MID 20S AND ONLY RECOVER INTO THE UPPER 20S TO MID 30S ON FRIDAY. BREAKS IN THE CLOUDS HAVE ALLOWED TEMPS TO WARM BACK INTO THE LOWER 40S IN SOME AREAS WITH COLDEST AIR STILL RESIDING NORTHWEST OF THE REGION. COMBINATION OF PARTLY TO MOSTLY CLOUDY SKIES AND ABOVE NOTED COLD LOW LEVEL TEMPS WILL YIELD HIGHS THAT STRUGGLE TO REACH FREEZING IN MANY AREAS.
THE UPPER TROF AXIS CURRENTLY MOVG ACROSS S TX. H5 TROUGH AXIS IS JUST NOW ENTERING NW COUNTIES AND THUS AN ISOLATED SHOWER WILL REMAIN POSSIBLE ACROSS SOUTHERN 1/4 OF THE CWA THROUGH LATE EVENING /UNTIL DRIER AIR THEN SPREADS FARTHER S AND MID LEVEL TROUGH AXIS SHIFTS OVERHEAD/.
High pressure continues to dominate over California early this morning. Satellite imagery shows that the upper level ridge axis has shifted east into the Great Basin as a trough approaches the West Coast. Highs are still expected to reach the lower to mid 80s across the Valley today, with 60s and 70s over the mountains. We'll see a bit more cooling on Saturday as the trough slowly moves through the region.
ALOFT- LONG WAVE TROUGH STRETCHED FROM EASTERN ONTARIO ACROSS THE MID-MISSISSIPPI VALLEY TO THE TX COASTAL PLAINS. SURFACE - A COLD FRONT REACHED FROM NEW ENGLAND COASTAL WATERS TO THE CENTRAL GULF COAST AND CONTINUED TO THE SOUTHWEST GULF WATERS. HIGH PRESSURE WELL OFF- SHORE THE MID-ATLANTIC COAST RIDGED ACROSS THE BAHAMAS AND CUBA TO THE NORTHWESTERN CARIBBEAN SEA. THESE WILL BE FOLLOWED BY MORE SHOWERS AND STORMS AS THE UPPER TROUGH DEEPENS AND. ALONG WITH THE COLD FRONT. AMPLE MOISTURE ALONG WITH INCREASING LIFT AND MID-LEVEL FLOW AS THE TROUGH AND FRONT APPROACH WILL SUPPORT A MARGINAL RISK OF SEVERE WEATHER. HIGH PRESSURE BUILDS INTO THE MISSISSIPPI VALLEY AND GULF TONIGHT THEN SHIFTS EAST SUN WITH COOL NORTHWESTERLY WINDS.
ALL EYES ON AN ACTIVE SATURDAY AS A STRONG COLD FRONT PROGRESSES ACROSS THE REGION BRINGING BOTH HIGH WINDS AND FIRE WEATHER CONCERNS BY SATURDAY AFTERNOON AND EVENING. STRONG COLD FRONT EXPECTED TO PUSH FROM WEST TO EAST ACROSS THE REGION BEGINNING EARLY SATURDAY AFTERNOON IN LIVINGSTON/HARLOWTON AREAS.
518 AM CDT FRI MAR 27 2015 THE SURFACE COLD FRONT WAS MOVING SOUTHWARD ACROSS CENTRAL ALABAMA WHERE IT JUST PASSED TROY AND OPELIKA AT THIS WRITING. THE LATEST WATER VAPOR MAGERY HAS THE UPPER TROUGH SWINGING THIS WAY WITH ANOTHER IMPULSE MOVING INTO THE NORTHWEST THIS AFTERNOON. THE FREEZING CONDITIONS WILL BE FAIRLY SHORT-LIVED. THE COLD FRONT HAS PUSHED TO NEAR KMGM.
HIGH PRESSURE WILL REBUILD SAT AND SUN FOR A RETURN OF DRY WEATHER. DRY CONDITIONS WILL RETURN ON SATURDAY THOUGH THERE MAY BE JUST ENOUGH INSTABILITY TO ALLOW A FEW SHOWERS TO FORM OVER THE HIGHER TERRAIN OF TRINITY COUNTY SATURDAY AFTERNOON AS THE FRONT DISSIPATES/MOVES INLAND.
333 AM PDT FRI MAR 27 2015 HIGH PRESSURE ALOFT OVER CALIFORNIA WILL BRING ANOTHER UNSEASONABLY WARM DAY TODAY. THOUGH IT WILL BE A LITTLE BIT COOLER NEAR THE COAST DUE TO DEVELOPING ONSHORE FLOW.
601 AM EDT FRI MAR 27 2015 LOW PRESSURE WILL EXIT INTO THE MARITIMES THIS MORNING. A COLD FRONT WILL DROP SOUTH ACROSS THE AREA TODAY. AND LOW PRESSURE PASSING OFFSHORE.
1052 PM PDT THU MAR 26 2015 Friday through the weekend will be much warmer than average with afternoon temperatures in the 60s and even some lower 70s down in the Columbia Basin. Precipitation chances will be tied to two cold front passages.
325 AM EDT FRI MAR 27 2015 A COLD FRONT WILL SLOWLY SHIFT SOUTH THROUGH OUR REGION EARLY THIS MORNING WITH COLDER AIR FILTERING IN BEHIND THE FRONT.
RIDGE WILL CONTINUE TO BUILD INTO THE AREA WITH ISENTROPIC UPGLIDE CLOUDINESS GRADUALLY DECREASING TONIGHT LEAVING ALL BUT THE NE CORNER SUNNY OR MOSTLY SUNNY ON FRIDAY. A FEW FLURRIES WERE NOTED OVER THE HIGHER NRN MTNS THIS MORNING BUT THAT'S ABOUT IT. FRIDAY WILL BE ANOTHER 8-10 DEGREES WARMER FOR MANY AREAS. JUST WARMER.
PRECIPITATION CHANCES SHOULD START TO SHOW UP LATER TONIGHT/EARLY FRIDAY MORNING AS THE NEXT LOW PRESSURE SYSTEM DIVING SOUTHWARD OUT OF CANADA WORKS THROUGH THE NORTHERN PLAINS. HIGH PRESSURE WILL SETTLE IN OVER THE REGION TONIGHT. THE WARMER AIR WILL BEGIN TO AFFECT THE WEST ON FRIDAY. HIGHS LOOK TO RANGE FROM THE UPPER 30S ACROSS THE NORTHEAST TO THE LOWER 60S ACROSS THE SOUTHWEST. THE WARMER AIR FINALLY PUSHES EASTWARD ON SATURDAY. WITH HIGHS RANGING FROM THE LOWER 50S ACROSS THE NORTHEAST TO THE MID 70S ACROSS THE SOUTHWEST.
354 AM CDT FRI MAR 27 2015 ANUPPER RIDGE ACROSS THE WESTERN STATES TODAY WILL SLOWLY BUILD EAST THROUGH THE WEEKEND.
AS A COLD FRONT MOVES INTO NORTHERN AND CENTRAL TEXAS.
251 AM MDT FRI MAR 27 2015 THE HIGHLY AMPLIFIED RIDGE SHIFTS OVER THE GREAT BASIN TODAY.
ADVECTION OF COLD AIR WILL CONTINUE OVERNIGHT WITH FREEZING TEMPERATURES ANTICIPATED MOST LOCATIONS BY EARLY SATURDAY MORNING.
AS THIS COLD FRONT PASSES THROUGH, GUSTY NW WINDS ALONG WITH MUCH COOLER AND DRIER AIR WILL MOVE INTO THE REGION FROM THE NW, WITH HIGH TEMPERATURES ONLY RANGING FROM THE LOWER 60S OVER SE AL TO THE LOWER TO MIDDLE 70S ACROSS THE FAR SE FL BIG BEND.