Aikyam-Lab/Synoptic-Bench huggingface dataset:
407 AM CDT SUN MAR 20 2016 An mid/upper low continued to head down the MS River valley early this morning, as an inverted surface trof lurked over southwestern IN, keeping steady rain shower activity in place there. As the low moves southeastward across the PAH forecast area today, the surface trof will move generally southward in response, continuing to create a focusing mechanism for showers. Critical thicknesses associated with the low appeared to support some ice nucleation and therefore generation of light snowfall early this morning, as soon as temperatures near the surface get cold enough. Adding to the excitement will be steep mid level lapse rates associated with the mid/upper low over the region, which may produce some afternoon convective activity, including lightning strikes, over southwestern IN, southeastern IL and the Pennyrile region of KY.
1225 AM CDT SUN MAR 20 2016 SATELLITE SHOWING THE UPPER LEVEL LOW PRESSURE AFFECTING OUR WEATHER CONTINUING TO SPIN OVER THE NE/IA BORDER AREA THIS AFTERNOON. THIS UPPER LOW HAS RESULTED IN PRECIP ACROSS MAIN. TEMPS ALOFT ARE BELOW FREEZING. HIGH PRESSURE CONTINUES TO GRADUALLY BUILD INTO THE REGION FROM THE N/NW. WHILE LOW PRESSURE SPINS OVER NERN IA. MODELS ARE IN GOOD AGREEMENT SHOWING THAT MAIN UPPER LOW CONTINUING TO SLIDE S/SE WITH TIME THROUGH THE SHORT TERM PERIOD.
ONLY THIN HIGH CLOUDS ARE MOVING THROUGH THE UPPER LEVEL HIGH PRESSURE RIDGE THIS EVENING. WITH AN UPPER LEVEL RIDGE BUILDING TO OUR WEST. HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT SUPPORTS LIGHT WINDS AND MOSTLY CLEAR SKIES THROUGH SUNDAY AFTERNOON, WITH NO MORE THAN PERIODS OF HIGH CLOUDS PASSING OVERHEAD. SOME OF THE HIGHER SOUTHWEST VALLEYS COULD SEE TEMPERATURES DIP BACK INTO THE SINGLE DIGITS.
437 AM EDT SUN MAR 20 2016 COOLER AND DRIER WEATHER WILL PERSIST TODAY WITH UNSETTLED WEATHER RETURNING DURING THE WEEK. TEMPERATURES WILL BE SLIGHTLY WARMER THAN YESTERDAY. RELATIVELY QUIET DURING MONDAY AS OFFSHORE STORM REMAINS GENERALLY EAST OF THE REGION, WHILE AN UPPER TROUGH PASSAGE MONDAY NIGHT BRINGS VARIABLE CLOUDS AND PERHAPS A FEW FLURRIES/SHSN.
414 AM EDT SUN MAR 20 2016 A MID-LEVEL TROUGH WILL MOVE ACROSS THE AREA TODAY. HIGH PRESSURE WILL SLIDE ACROSS THE REGION ON MONDAY. SOUTHERLY FLOW ON THE BACK SIDE OF THIS HIGH WILL BRING WARMER TEMPERATURES DURING THE MIDDLE OF THE WEEK. MID LEVEL TROUGH OVER THE MID MISSISSIPPI VALLEY EARLY THIS MORNING WILL TRACK ACROSS THE AREA TODAY. COOLER TEMPERATURES ALOFT ASSOCIATED WITH THIS ALONG WITH HEATING SHOULD LEAD TO AN EXTENSIVE CUMULUS FIELD TODAY. TROUGH WILL SWING AWAY FROM THE REGION AND FLOW WILL BECOME ZONAL THROUGH THE PERIOD. AXIS OF HIGH PRESSURE WILL MOVE SOUTHEAST ACROSS THE REGION ON MONDAY. GUIDANCE TEMPERATURES LOOKED IN THE BALLPARK FOR SUNDAY NIGHT AND MONDAY WITH READINGS SLIGHTLY WARMER THAN PERSISTENCE. SOUTHERLY FLOW WILL ENSUE ON THE BACK SIDE OF THE HIGH.
247 AM PDT SUN MAR 20 2016 HIGH PRESSURE WILL CONTINUE INLAND HIGH TEMPERATURES AROUND 10 DEGREES ABOVE AVERAGE TODAY WITH AREAS OF MORNING LOW CLOUDS AND FOG FOR COASTAL AND WESTERN VALLEY AREAS.
345 AM CDT SUN MAR 20 2016 WV imagery shows an upper ridge over the western CONUS extending up into the northern Rockies, leaving West Texas and Southeast New Mexico under dry, NW flow aloft. Monday, an upper-lvl storm system will start making landfall on the PacNW, flattening the ridge and nudging it east.
236 AM MST SUN MAR 20 2016 HIGH PRESSURE OVER THE DESERT SOUTHWEST WILL RESULT IN CLEAR SKIES AND ABNORMALLY WARM WEATHER THROUGH MONDAY. DAYTIME HIGHS WILL EXCEED 90 DEGREES AT MANY LOWER DESERT LOCATIONS BEFORE NOTICEABLY COOLER TEMPERATURES ARRIVE BY THE MIDDLE OF THE WEEK. WINDY CONDITIONS WILL IMPACT THE REGION AS A COOL PACIFIC LOW PRESSURE SYSTEM MOVES INLAND. LATEST STREAMLINE ANALYSIS SHOWS THE APEX OF THE AMPLIFIED RIDGE EXTENDING ALL OF THE WAY INTO WESTERN CANADA. DEPICTING THE RIDGE TRANSLATING EASTWARD YIELDING A CONTINUATION OF THE WELL-ABOVE NORMAL TEMPERATURES. TODAY SHOULD BE THE WARMEST DAY OF THE YEAR SO FAR WITH HIGH TEMPERATURES IN THE LOWER 90S IN THE LOWER DESERTS. MIGRATE INTO THE DESERT SOUTHWEST MONDAY AS THE RIDGE SLIDES TO OUR EAST.
527 AM EDT SUN MAR 20 2016 A TROUGH OF LOW PRESSURE WILL MAINTAIN LIGHT RAIN AND SNOW CHANCES THROUGH SUNDAY NIGHT. WITH AN INVERTED SFC TROF EXTENDING N INTO WRN PA. LGT PCPN CHCS SHOULD INCREASE AS AN UPR TROF APPROACHES THE RGN LATER TODAY. THOUGH THE COLDER TEMPS IN RIDGES SE OF PIT SHOULD RESULT IN MAINLY LGT SNOW. THE CROSSING UPR TROF SHOULD PROVIDE THE BEST CHCS FOR LGT RAIN AND SNOW THIS EVE. THOUGH ONLY LGT ACCUMULATIONS ARE EXPECTED MAINLY IN THE HIGHER TERRAIN SE OF PIT WHERE COLDER TEMPS AND PREDOMINANTLY LGT SNOW IS EXPD. ANY PCPN SHOULD END BY MON MRNG AS THE TROF EXITS AND RIDGING BUILDS.
639 AM EDT SUN MAR 20 2016 A MID-LEVEL TROUGH WILL MOVE ACROSS THE AREA TODAY. HIGH PRESSURE WILL SLIDE ACROSS THE REGION ON MONDAY. SOUTHERLY FLOW ON THE BACK SIDE OF THIS HIGH WILL BRING WARMER TEMPERATURES DURING THE MIDDLE OF THE WEEK. MID LEVEL TROUGH OVER THE MID MISSISSIPPI VALLEY EARLY THIS MORNING WILL TRACK ACROSS THE AREA TODAY. COOLER TEMPERATURES ALOFT ASSOCIATED WITH THIS ALONG WITH HEATING SHOULD LEAD TO AN EXTENSIVE CUMULUS FIELD TODAY. TROUGH WILL SWING AWAY FROM THE REGION AND FLOW WILL BECOME ZONAL THROUGH THE PERIOD. AXIS OF HIGH PRESSURE WILL MOVE SOUTHEAST ACROSS THE REGION ON MONDAY. GUIDANCE TEMPERATURES LOOKED IN THE BALLPARK FOR SUNDAY NIGHT AND MONDAY WITH READINGS SLIGHTLY WARMER THAN PERSISTENCE. SOUTHERLY FLOW WILL ENSUE ON THE BACK SIDE OF THE HIGH.
357 AM CDT SUN MAR 20 2016 H5 ANALYSIS FROM EARLIER THIS EVENING HAD A CLOSED LOW OVER SRN IOWA WITH A LOW AMPLITUDE TROUGH ACROSS THE MID AND LOWER MISSISSIPPI AND OHIO VALLEYS. RIDGING WAS PRESENT ACROSS THE WESTERN CONUS AND EXTENDED WELL NORTH INTO WESTERN CANADA. CLOSED LOW PRESSURE WAS LOCATED OVER THE GULF OF ALASKA WITH A SECOND LOW LOCATED OVER SWRN ALASKA. HIGH PRESSURE WAS PRESENT ACROSS WESTERN KS AND SWRN NEBRASKA. DECIDED TO TREND HIGHS MORE TOWARD THE WARMER MAV GUIDANCE. LOWS WILL BE SEASONAL TONIGHT WITH READINGS IN THE LOWER 20S IN THE PLATTE RIVER VALLEY.
HIGH PRESSURE WILL BRING UNSEASONABLY WARM TEMPERATURES TO UTAH SUNDAY.
A COLD FRONT IN THE FLORIDA PAN HANDLE WILL REACH TAMPA BAY AROUND 15Z AND FORT MYERS AROUND 18Z. THE COLD FRONT IS STILL FORECAST TO MOVE ACROSS THE REGION DURING THE DAY SUNDAY BRINGING AN END TO THE RAIN CHANCES AND USHERING IN A MUCH COOLER DRIER AIRMASS FOR THE START OF THE WORK WEEK. IN FACT THE LATEST MOS FORECAST MINS FOR MONDAY NIGHT ARE NOW IN THE LOWER TO MID 30S ACROSS THE NATURE COAST AND GUIDANCE DOES NOT INDICATE ANY CLOUDS WHICH WOULD LIMIT RADIATION COOLING.
1230 AM CDT SUN MAR 20 2016 While similar processes are at play with respect to above freezing temperatures yet snow mixing in (steep low- to mid-level lapse rates, moisture available in the dendritic growth zone, etc. Mosaic radar imagery is showing very widely scattered showers (rain and snow) across the northern half of the forecast area, rotating south and eastward around an associated low pressure system. The question is whether or not some of it is reaching the ground, thanks to a very dry layer in the lower atmosphere. The wrench in the forecast lows for tonight will be the cloud cover: the more cover, the less likely of too much of a dip below freezing, which is the scenario that appears to be setting up with the aforementioned low.
301 AM CDT SUN MAR 20 2016 06Z SFC DATA HAS A WEAK INVERTED TROF RUNNING FROM NORTHEAST IOWA INTO SOUTHERN INDIANA. DEW POINTS WERE IN THE 30S AROUND THE TROF WITH 20S ACROSS THE REMAINDER OF THE GREAT LAKES AND MIDWEST. DRY CONDITIONS LOOK TO BE IN STORE FOR THE AREA AS HIGH PRESSURE MOVES IN FROM THE PLAINS.
THEN BREEZY AND COOLER FOR MID WEEK. WATER VAPOR IMAGERY AND 20/00Z UPPER-AIR PLOTS SHOW AN AMPLIFIED RIDGE AXIS JUST TO OUR WEST THAT EXTENDS FROM JUST WEST OF THE BAJA PENINSULA AND NORTH NORTHEAST ACROSS SRN CALIFORNIA THROUGH THE GREAT BASIN AND INTO THE NORTHERN ROCKIES. IR IMAGERY SHOWS CIRRUS LEVEL MOISTURE SPILLING OVER THE TOP OF THE RIDGE ACROSS PARTS OF SRN CALIFORNIA. MODELS INDICATE THAT THIS RIDGE AXIS WILL MOVE EAST THROUGH MONDAY.
A COLD FRONT WILL MOVE INLAND TODAY WILL BRING RAIN TO THE COAST THIS MORNING. PRECIPITATION WILL TAPER OFF TO SHOWERS THIS AFTERNOON AND EVENING AFTER THE COLD FRONT HAS MOVED THROUGH.
318 AM EDT SUN MAR 20 2016 LOW PRESSURE ALONG THE CAROLINA COAST WILL TRACK TO THE NORTHEAST TODAY. AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL MOVE THROUG THE MID ATLANTIC LATE THIS AFTERNOON. HIGH PRESSURE WILL BUILD INTO THE AREA FOR MOST OF THE WEEK. PNS ISSUED ERLR FOR SAT SN - 7" IN THE HIGHLANDS OF W. THIS WL TRACK NE AHD OF THE UPR LVL TROF. LATER CHCS FOR PCPN WL BE AS THE UPR LVL TROF REACHES THE APLCHNS DURG THE 00-06Z TIMEFRAME. HIGHS IN THE LOW 40S. AND THE CHCS OF PCPN WL CONT IN THE EVE AS THE UPR TROF SWINGS THRU. UPSLOPE SNSH IN THE HIGHLANDS COULD PRODUCE 1-2" LATE THIS AFTN/TNGT.
MUCH LIGHTER WINDS WILL ALLOW LOW TEMPERATURES TO FALL CLOSE TO FREEZING ACROSS PARTS OF OUR NORTH/NORTHEAST COUNTIES AND BOTTOM OUT IN THE MID 40S AT THE COAST.
313 AM EDT SUN MAR 20 2016 LOW PRESSURE ALONG THE CAROLINA COAST WILL TRACK TO THE NORTHEAST TODAY. AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL MOVE THROUG THE MID ATLANTIC LATE THIS AFTERNOON. HIGH PRESSURE WILL BUILD INTO THE AREA FOR MOST OF THE WEEK. PNS ISSUED ERLR FOR SAT SN - 7" IN THE HIGHLANDS OF W. THIS WL TRACK NE AHD OF THE UPR LVL TROF. LATER CHCS FOR PCPN WL BE AS THE UPR LVL TROF REACHES THE APLCHNS DURG THE 00-06Z TIMEFRAME. HIGHS IN THE LOW 40S. AND THE CHCS OF PCPN WL CONT IN THE EVE AS THE UPR TROF SWINGS THRU.
326 AM MDT SUN MAR 20 2016 BUILDING UPPER RIDGE ADVANCING ON EASTERN COLORADO AT THIS TIME WILL LEAD TO WARMER AND DRIER CONDITIONS FOR THE ENTIRE FORECAST AREA DURING THE NEXT 24 HOURS. WHEREAS WINDS IN THE HIGH COUNTRY. RIDGING ALOFT WILL BE ACROSS COLORADO ON MONDAY WHILE THE FLOW ALOFT INCREASES AND BECOMES MORE WESTERLY. THIS WILL LEAD TO STRONGER DOWNSLOPE WESTERLY FLOW AND MUCH WARMER TEMPERATURES COMPARED TO SUNDAY. MUCH OF THE SNOW OVER THE ADJACENT PLAINS WILL HAVE MELTED BY MONDAY AFTERNOON SO EXPECT TEMPERATURES TO CLIMB INTO THE LOWER 70S OVER THE PLAINS.
243 AM MDT SUN MAR 20 2016 TEMPS WILL WARM INTO MONDAY AS A RIDGE ALOFT MOVES OVERHEAD. THE RIDGE AXIS WILL BE OVER WESTERN WY BY THIS AFTN WITH 700 MB TEMPS RISING TO AROUND 0C. THE RIDGE AXIS ALOFT WILL MOVE EASTWARD AND BE DIRECTLY OVER THE CWA BY MONDAY AFTERNOON. MOISTURE WILL INCREASE ALOFT BY TUES IN THE SOUTHWESTERLY FLOW AHEAD OF THE APPROACHING UPPER TROUGH.
1202 AM CDT SUN MAR 20 2016 THE SHOWERS HAVE EXITED MINNESOTA AND ARE NOW MAINLY CONFINED TO IOWA UNDERNEATH THE UPPER LOW. OUR HIGHS TOMORROW MIGHT END UP A BIT WARMER THAN WHAT IS CURRENTLY IN THE FORECAST /WHICH IS MAINLY LOWER 40S RIGHT NOW/.
540 AM CDT SUN MAR 20 2016 THE UPPER TROUGH THAT HAS IMPACTED THE CENTRAL CONUS IS MOVING EASTWARD TODAY.
WITH AN UPPER LOW SPINNING ACROSS THE UPPER MIDWEST. AS UPPER LEVEL RIDGING BUILDS ACROSS THE DESERT SOUTHWEST AND INTO THE GREAT BASIN. WATER VAPOR IMAGERY IS ALSO INDICATING AN EMBEDDED SHORT WAVE CONTINUING TO TRANSLATE DOWN THE BACKSIDE OF THE LOW ACROSS THE CENTRAL HIGH PLAINS AT THIS TIME. NORTHWEST FLOW PROGGED TO MODERATE ACROSS THE REGION AS UPPER LEVEL RIDGING CONTINUES TO BUILD EAST. WARMING ALOFT UNDER THE BUILDING RIDGE WILL ALLOW FOR TEMPERATURES TO WARM BACK TO NEAR SEASONAL AVERAGES TOMORROW. WINDS AT 700MB WILL BE AROUND 20 KNOTS WITH A WEAK LEE TROUGH OVER THE PLAINS.
NORTHERLY WINDS IN THE LOWEST 4200 FEET ARE DELIVERING COOLER AND DRIER AIR IN THE WAKE OF A COLD FRONT THAT HAS MOVED OFFSHORE THIS EVENING. /ISSUED 401 PM CDT SAT MAR 19 2016/ COLD FRONT IS CURRENTLY MOVING THROUGH THE FORECAST AREA. WINDS HAVE NOTICEABLY PICKED UP BEHIND THE FRONT AS MUCH COOLER AND DRIER AIR MOVES INTO THE REGION. COLD AIR ADVECTION CONTINUES SUNDAY WITH TEMPERATURES STRUGGLING TO REACH THE LOWER 60S. LOW TEMPERATURES ARE FORECAST TO BOTTOM OUT IN THE MID TO UPPER 30S FOR AREAS GENERALLY ALONG AND NORTH OF THE I-10/12 CORRIDOR AND IN THE LOW TO MID 40S FOR AREAS SOUTH OF THE I-10/12 CORRIDOR. SOME PLACES MAY FLIRT WITH THE FREEZING MARK SUNDAY NIGHT INTO MONDAY MORNING.
COLD FRONT THAT PASSED THROUGH THE AREA CONTINUES TO STEAM SOUTHWARD ACROSS THE GULF OF MEXICO. STRONG HIGH PRESSURE HAS BEGUN TO BUILD ACROSS THE AREA WITH POST FRONTAL SURGE OF COLDER AIRMASS. BELIEVE STRONG CAA WILL KEEP HIGHS LIMITED TO UPPER 50S TO AROUND 60S SO HAVE KEPT THE FCST TEMPS ON THE LOWER SIDE OF GUIDANCE WHICH IS NEAR THE NAM/MET. TEMPERATURES WILL BE QUICKLY MODERATING GOING INTO MONDAY AS UPPER LEVEL TROUGH RACES EASTWARD AND 500MB HEIGHTS JUMP UP.
SHORT TERM: (Through Late This Afternoon) Upper low currently over the region will continue to slowly drop swd. For portions of central MO where more breaks are possible, have trended slightly warmer, tho still below guidance.
WAA DEVELOPS IN EARNEST ON MONDAY AS THE CWA WILL BE BETWEEN THE EXITING HIGH AND A TROUGH TO THE WEST. TEMPERATURES ACROSS THE EAST WILL STILL BE A BIT COOLER ON SUNDAY. HIGHS WILL RANGE FROM THE UPPER 30S EAST TO THE LOWER 50S WEST. THE WAA REALLY KICKS IN ON MONDAY WITH HIGHS RANGING FROM THE UPPER 40S EAST TO THE LOWER TO MID 60S WEST.
304 AM EDT SUN MAR 20 2016 A TROUGH OF LOW PRESSURE WILL MAINTAIN LIGHT RAIN AND SNOW CHANCES THROUGH SUNDAY NIGHT. WITH AN INVERTED SFC TROF EXTENDING N INTO WRN PA. LGT PCPN CHCS SHOULD INCREASE AS AN UPR TROF APPROACHES THE RGN LATER TODAY. THOUGH THE COLDER TEMPS IN RIDGES SE OF PIT SHOULD RESULT IN MAINLY LGT SNOW. THE CROSSING UPR TROF SHOULD PROVIDE THE BEST CHCS FOR LGT RAIN AND SNOW THIS EVE. THOUGH ONLY LGT ACCUMULATIONS ARE EXPECTED MAINLY IN THE HIGHER TERRAIN SE OF PIT WHERE COLDER TEMPS AND PREDOMINANTLY LGT SNOW IS EXPD. ANY PCPN SHOULD END BY MON MRNG AS THE TROF EXITS AND RIDGING BUILDS.
THE UPPER LOW OVER MO AND ITS TROUGH AXIS THAT EXTENDS INTO THE LOWER GREAT LAKES WILL MOVE INTO THE OHIO RIVER VALLEY LATER TODAY WHILE ANOTHER UPPER TROUGH WILL MOVE ACROSS THE NRN GREAT LAKES THIS AFT AND EVE. 925 MB TEMPS AROUND 0C YIELDS HIGHS IN THE LOWER 40S TODAY WHICH AGREES WELL WITH MOS GUIDANCE.
RAINFALL EXITING QUICKLY TO THE EAST THIS MORNING AS UPPER TROUGH DIVES SOUTHEASTWARD. LINGERING CLOUD COVER AND COLD ADVECTION WILL KEEP TEMPERATURES SOMEWHAT COOL ACROSS THE NORTH WITH HIGHS IN THE LOWER TO MID 70S.
1254 PM EDT SAT OCT 10 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL PROVIDE THE NORTH COUNTRY WITH DRY CONDITIONS AND SEASONAL TEMPERATURES TODAY.
1208 PM EDT SAT OCT 10 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SUNDAY.
SLIGHTLY ELEVATED NRLY WINDS BEHIND THE COLD FRONT WHICH PASSED EARLIER THIS MORNING CAN BE EXPECTED THROUGH THE DAY. A WEAK COLD FRONT IS MOVING ACROSS THE REGION THIS MORNING WITH WINDS BECOMING MORE NORTHERLY ALL THE WAY TO THE COASTAL WATERS. BEHIND THE SECOND SHORT WAVE THE FLOW ALOFT WILL BECOME MORE NORTHERLY AS A RIDGE BUILDS OVER THE PLAINS. THIS WILL SERVE TO PUSH IN A DRIER, COOLER, AND MORE SEASONABLE AIR MASS OVER THE AREA TODAY THAT WILL LINGER THROUGH SUNDAY.
723 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL MOVE ACROSS THE REGION TODAY AND WILL SETTLE SOUTH OF NEW ENGLAND TONIGHT AND SUNDAY.
1016 AM CDT SAT OCT 10 2015 TEMPS STARTING OUT 5-8 DEGREES COOLER THAN THIS TIME YDAY NORTH OF I-10 AND 0-5 DEGREES COOLER TO THE SOUTH.
955 AM MST SAT OCT 10 2015 A LOW PRESSURE SYSTEM ACROSS NORTHERN MEXICO WILL CONTINUE DRIFTING WESTWARD. A LOW PRESSURE SYSTEM WILL BRING SLIGHTLY COOLER TEMPERATURES. IR/WATER VAPOR SATELLITE IMAGERY THIS MORNING SHOW AN UPPER LEVEL LOW CENTERED/SPINNING JUST WEST OF THE BAJA PENINSULA IN THE PACIFIC. THERE IS A FAIR AMOUNT OF LIGHTNING ASSOCIATED WITH THE COLDER CORE OF THE LOW OUT OVER WATERS OF THE GULF AND THE PACIFIC. BUT REGIONAL UPPER AIR PLOTS/MODEL 500MB TEMPS SHOW WARMER AIR ALOFT OVER MOST OF ARIZONA/SOUTHEAST CALIFORNIA THAT WOULD THWART FAVORABLE LAPSE RATES/CONVECTIVE POTENTIAL FOR STORMS TO FORM OVER OUR FORECAST AREA. UNDER THE RIDGE OF HIGH PRESSURE THAT HAS BEEN IN PLACE FOR THE LAST DAY OR TWO. AND CLOSER TO 100 DEGREES ALONG PORTIONS OF THE LOWER COLORADO RIVER AND SOUTHEAST CALIFORNIA NEAR BLYTHE AND EL CENTRO.
741 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SUNDAY.
732 AM EDT SAT OCT 10 2015 AN UPPER RIDGE MOVING TOWARD THE AREA FROM THE W WILL KEEP NW FLOW TODAY. BUT FLOW FLATTENS OUT AS THE RIDGE MOVES TO JUST W OF THE AREA BY 12Z SUN. THE PRESSURE GRADIENT TIGHTENS UP TODAY AND TONIGHT AS THE HIGH THAT WAS OVER THE AREA EARLY TONIGHT SHIFT E AND A BROAD TROUGH MOVES INTO CENTRAL NORTH AMERICA. THE STRONG SW-WSW FLOW WILL ADVECT A WARMER AIRMASS INTO THE AREA.
1130 AM CDT SAT OCT 10 2015 ANOTHER PLEASANT AUTUMN DAY ON TAP AS HEIGHTS RISE WITH UPPER RIDGE SPREADING EAST. FLOW ACROSS NORTHERN TIER WILL BE IMPACTED BY STRONG SHORT WAVE TROUGH.
ANALYSIS SHOWS A VERY WEAK TROUGH NEARBY. TEMPERATURES ALONG THE ISLAND CHAIN ARE IN THE LOWER 80S.
1219 PM EDT SAT OCT 10 2015 A COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON BRINGING SHOWERS AND A FEW THUNDERSTORMS. ANOTHER COLD FRONT.
A LOW PRESSURE SYSTEM CURRENTLY LOCATED OVER THE BAJA PENINSULA WILL MOVE WEST OUT OVER THE PACIFIC WATERS AND MAY BE A FACTOR IN OUR WEATHER BY MIDWEEK.
711 AM EDT SAT OCT 10 2015 HIGH PRESSURE BUILDING THE REGION THIS MORNING WILL PROVIDE THE NORTH COUNTRY WITH DRY CONDITIONS AND SEASONAL TEMPERATURES TODAY.
/ISSUED / PRECIP IS SLOWLY WINDING DOWN ACROSS THE MID STATE AS THE UPPER TROUGH SLIDES EASTWARD OVERNIGHT. BACKSIDE OF THE TROUGH SHOULD START IMPACTING THE AREA LATER THIS MORNING. TEMPS WILL BE A BIT COOLER THANKS TO FROPA.
SOME LINGERING STRATOCU CIGS ARE AFFECTING A FEW TAF SITES THIS MORNING BUT VFR CONDITIONS WILL DOMINATE THIS PERIOD AS COOLER AND DRIER AIR CONTINUES TO FILTER INTO THE AREA. /ISSUED 432 AM CDT SAT OCT 10 2015/ THE COLD FRONT HAS PUSHED OFFSHORE THE SE TX/SRN LA COASTS THIS MORNING. BEFORE DIMINISHING FROM NW TO SE WITH THE PASSAGE OF THE TROUGH. MUCH DRIER AIR WILL RESULT IN PLEASANT TEMPS TONIGHT AS SFC RIDGING BUILDS S OVERHEAD.
AS AN UPPER-LEVEL TROUGH OVER THE PACIFIC NORTHWEST TRACKS INTO THE NORTHERN ROCKIES LATER TODAY. STRONG WINDS WILL PERSIST INTO SUNDAY AS A COLD FRONT PASSES THROUGH THE TREASURE STATE.
DRY CONDITIONS TODAY UNDER THE NORTHWEST TO SOUTHEAST ORIENTED MID AND UPPER LEVEL RIDGE. THE CUT-OFF LOW OVER THE PAC COAST CONTINUES TO DRIFT WEST THIS MORNING. A STRENGTHENING HIGH PRESSURE RIDGE OVER TX/NM WILL RESUME A DAYTIME WARMING TREND THAT SHOULD ACCELERATE SUNDAY. DEW POINTS IN THE 50S SPILLING IN FROM NORTH CENTRAL TX BEHIND TODAYS WEAK COLD FRONT SHOULD ENABLE TEMPS CLOSER TO NORMALS FOR OCT 11.
621 AM CDT SAT OCT 10 2015 HIGH PRESSURE HAS SHIFTED EAST OF THE REGION RESULTING IN A WEAK SOUTHERLY FLOW EARLY THIS MORNING. BREEZY CONDITIONS DEVELOP AGAIN AHEAD OF A COLD FRONT.
High clouds and locally breezy conditions over the higher elevations of the Sierra this weekend.
SOUTHWESTERLY WINDS HAVE INCREASED TO BTWN 15 TO 25 KTS AS SHORT WAVE TROUGH PROMOTES BOUNDARY LAYER MIXING. BUT MUCH WARMER AFTERNOON. AND SUBTLE HEIGHT RISES ALOFT LEAD TO HIGH TEMPS IN THE LOWER TO MID 80S. THE LEE TROUGH WILL SHIFT EAST INTO THE PLAINS ON SUNDAY AHEAD OF AN UPPER TROUGH ADVANCING ACROSS THE NORTHERN ROCKIES INTO THE NORTHERN PLAINS. THE AFOREMENTIONED UPPER TROUGH WILL HELP PUSH A COLD FRONT SOUTH THROUGH THE AREA SUNDAY NIGHT.
TEMPERATURES ARE MAINLY IN THE LOWER 60S ACROSS THE ENTIRE REGION. TEMPERATURES WILL BE SEVERAL DEGREES COOLER WITH MOST LOCATION REMAINING IN THE LOWER TO MIDDLE 70S THIS AFTERNOON WITH LOWER HUMIDITY.
744 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL GIVE INCREASING SUNSHINE WITH COOLER TEMPERATURES TODAY. DRY AND WARMER SUNDAY AND COLUMBUS DAY. SUNSHINE WILL BE ON THE INCREASE FOR THE AFTERNOON WITH TEMPERATURES RECOVERING INTO THE 60S OUTSIDE OF THE RIDGES. THIS WILL ALLOW LOWS INTO THE LOWER 40S WITH TEMPERATURES INTO THE 30S IN SHELTERED VALLEYS AND IN THE RIDGES. PATCHY FROST ADDED TO THE WEST VIRGINIA RIDGES AND GARRETT COUNTY MARYLAND AS DEW POINTS INTO THE MID 30S WITH A GOOD RADIATION NIGHT LOOKS TO ALLOW SOME FROST TO FORM.
A WEAK TROUGH WILL MOVE ACROSS THE REGION THIS AFTERNOON. POSSIBLY REACHING THE LOW 90S AHEAD OF A STRONG COLD FRONT.
641 AM CDT SAT OCT 10 2015 Sunny and dry conditions can be expected today as high pressure moves across the area. By afternoon, the high pressure should be east enough of the area to allow southerly winds to return. Temperatures will be a roller-coaster ride over the next few days, before the upper pattern transitions to a more persistent northwest flow and a steadier period of cooler temperatures mid to late week.
515 AM MDT SAT OCT 10 2015 HIGH PRESSURE RIDGE ALOFT THROUGH TODAY WILL FLATTEN TONIGHT WITH THE RAPID APPROACH OF NORTHERN STREAM TROUGH CURRENTLY OFF PAC NW COAST.
DRIER AND WARMER CONDITIONS WILL ENSUE WITH THESE DOWNSLOPE BREEZES IN PLACE. FLAT RIDGING WILL BUILD ACROSS THE INTERMOUNTAIN WEST INTO THE HIGH PLAINS FOR THE WEEKEND. THESE DOWNSLOPE BREEZES COMBINED WITH WARMER AIR ADVECTING IN ALOFT WILL PROMOTE TEMPERATURES CLIMBING INTO THE MID 70S TO NEAR 80 ON THE CAPROCK AND LOW-MID 80S EAST OF THE ESCARPMENT. POLAR JET FLOW WILL REMAIN WELL NORTH OF THE AREA AS UPPER LEVEL LOW CONTINUES TO MEANDER WEST OF BAJA.
1052 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL BUILD IN TODAY BRINGING FAIR WEATHER WITH COOLER TEMPERATURES UNDER PARTLY CLOUDY SKIES.
1016 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION LATER TODAY THEN MOVE SOUTH TONIGHT THROUGH SUNDAY.
1151 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL GIVE INCREASING SUNSHINE WITH COOLER TEMPERATURES TODAY. DRY AND WARMER SUNDAY AND COLUMBUS DAY. SUNSHINE WILL BE ON THE INCREASE FOR THE AFTERNOON WITH TEMPERATURES RECOVERING INTO THE 60S OUTSIDE OF THE RIDGES. THIS WILL ALLOW LOWS INTO THE LOWER 40S WITH TEMPERATURES INTO THE 30S IN SHELTERED VALLEYS AND IN THE RIDGES. PATCHY FROST ADDED TO THE WEST VIRGINIA RIDGES AND GARRETT COUNTY MARYLAND AS DEW POINTS INTO THE MID 30S WITH A GOOD RADIATION NIGHT LOOKS TO ALLOW SOME FROST TO FORM.
1221 PM EDT SAT OCT 10 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION THIS AFTERNOON THEN MOVE SOUTH TONIGHT THROUGH SUNDAY.
High clouds and locally breezy conditions over the higher elevations of the Sierra this weekend. The state of CA has high pressure ridging across Central CA while two low pressure systems flank that ridge to the northwest (Gulf of Alaska) and to the south (off the coast of Baja California). The ridge will weaken slightly this weekend as a pulse of energy associated with the Gulf of Alaska low moves into the Pac NW.
931 AM EDT SAT OCT 10 2015 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL RESULT IN DRY WEATHER FOR THE WEEKEND. ANOTHER LARGE AND COOL HIGH PRESSURE SYSTEM WILL THEN SETTLE ACROSS THE REGION FOR MUCH OF THE NEXT WORK WEEK. SURFACE ANALYSIS LATE THIS MORNING SHOWS HIGH PRESSURE IN PLACE OVER ILLINOIS AND MICHIGAN. GIVEN FULL SUN TODAY AND LATEST GUIDANCE TRENDING WARMER. CONTINUED TO TREND HIGHS AND LOWS WARMER THAN MAVMOS DURING THIS TIME.
1038 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL BUILD OVERHEAD TODAY THROUGH SUNDAY.
1036 AM MDT SAT OCT 10 2015 HIGH PRESSURE RIDGE ALOFT THROUGH TODAY WILL FLATTEN TONIGHT WITH THE RAPID APPROACH OF NORTHERN STREAM TROUGH CURRENTLY OFF PAC NW COAST.
HIGH PRESSURE DRIFTS ACROSS TONIGHT THROUGH SUNDAY NIGHT.
LOCALLY WINDY CONDITIONS WITH SOME PATCHY BLOWING DUST MAY DEVELOP OVER THE YAKIMA VALLEY AND THE LOWER BASIN IN WASHINGTON LATE THIS AFTERNOON. WILL MAKE FURTHER INVESTIGATIONS OF THE WIND SPEEDS AHEAD OF AND WITH THE SYSTEM'S COLD FRONT, WHICH MOVES THROUGH THE AREA THIS EVENING.
1125 AM EDT SAT OCT 10 2015 HIGH PRESSURE WILL MOVE ACROSS THE REGION TODAY AND WILL SETTLE SOUTH OF NEW ENGLAND TONIGHT AND SUNDAY.
THESE ARE ABOUT 10 DEGREES COOLER THAN 24 HOURS AGO! VISIBLE SATELLITE SHOWS BROKEN TO OVERCAST SKIES THAT BLANKET THE REGION WITH CEILINGS CONTINUING TO IMPROVE THROUGHOUT THE MORNING/EARLY AFTERNOON. THE COLD FRONT PASSED THROUGH LAST NIGHT AND THE UPPER LEVEL LOW IS PROGRESSING THROUGH THIS MORNING. AS THE TROUGH MOVES OFF TO THE EAST. LATEST SATELLITE DATA CONFIRMS THAT OVERCAST DECK OF LOW STRATUS CONTINUES TO SPREAD SEWD IN THE WAKE OF AN UPPER LOW OVER NRN GEORGIA.