Aikyam-Lab/Synoptic-Bench huggingface dataset:
Currently have NE winds diminishing and veering to the east at most sites at the cold front continues to push south further away from terminals. Sfc analysis shows the cold front has barely dipped into the nrn-tiered zones, w/the colder air lagging back in the South Plains. WV imagery shows the upper ridge still to the west, but much flatter/dampened than 24 hrs ago, yielding zonal flow aloft at the moment. Cold front will move thru overnight, and bring temps closer to normal Monday.
COLD FRONT IS MAKING A SLOW PROGRESS SOUTHEAST TOWARDS THE FORECAST AREA. EXPECTING IT WILL TAKE SEVERAL MORE HOURS BEFORE ATMOSPHERE MOISTENS UP AND THE COLD FRONT GETS CLOSE ENOUGH FOR RAIN SHOWERS TO AFFECT THE AREA.
837 PM EDT SUN MAR 29 2015 HIGH PRESSURE OVER THE SOUTHEASTERN UNITED STATES WILL MOVE SOUTHWARD INTO SOUTH FLORIDA TONIGHT. THIS WILL ALLOW FOR A LITTLE BIT COOLER AIR TO WORK INTO THE EAST COAST METRO AREAS FROM THE INTERIOR AREAS TONIGHT. THE LOWS HAVE BEEN DROP DOWN A COUPLE OF DEGREES FOR THE EAST COAST METRO AREAS TONIGHT INTO THE MID 50S WELL INLAND AREAS TO LOWER 60S COASTAL AREAS. HIGH PRESSURE WILL PREVAIL ACROSS THE AREA THROUGH THE ENTIRE WEEK. THE TROUGH OVER THE EAST COAST OF THE U.
646 AM EST FRI FEB 27 2015 HIGH PRESSURE BUILDS INTO THE REGION THROUGH SATURDAY NIGHT.
TEMPS BEHIND THE CDFNT WERE IN THE SINGLE DIGITS/TEENS WHILE AHEAD OF THE CDFNT TEMPS WERE IN THE LOWER 30S.
928 AM EST FRI FEB 27 2015 STRONG HIGH PRESSURE OVER THE CENTRAL PLAINS WILL MOVE ACROSS THE LOWER LAKES SATURDAY THEN MOVE OFF THE MID ATLANTIC COAST SATURDAY NIGHT.
403 AM CST FRI FEB 27 2015 THE FIRST OF TWO SHORT WAVE TROUGHS IS APPROACHING WESTERN OKLAHOMA THIS MORNING. AN ADVISORY FOR UP TO 4 INCHES OF SNOW REMAINS EFFECTIVE FOR THIS AREA WITH PART OF NORTH TEXAS LIKELY TO HAVE CLOSER TO THIS HIGHER AMOUNT.
NEAR VERTICALLY STACKED UPPER LOW OVER NW WA WAS ALREADY SPREADING SNOW NEAR HARNEY- DESCHTES COUNTY BORDER PER TRIPCHECK WEBCAMS. MORE SNOW THERE IS POSSIBLE AFTER TEMPS COOL OFF THIS EVENING AS THE LOW PIVOTS ACROSS SE OREGON TONIGHT. ON THE SOUTH AND EAST FLANK OF THE LOW INSTABILITY LOOKS TO BE MAXIMIZED UNDER COLDEST AIR ALOFT AND WARMEST HIGHS SO KEPT A LOW CHANCE OF THUNDERSTORMS FROM NW OF BURNS TO S OF TWIN FALLS 18Z-06Z TONIGHT. ON SATURDAY RAIN AND SNOW IS EXPECTED GENERALLY SOUTH OF A BURNS-EMMETT-IDAHO CITY LINE AS THE LOW EXPANDS OVER NV. MAY NEED TO EXTEND THE HARNEY COUNTY SNOW ADVISORY PAST THIS AFTERNOON IF TEMPS LOOK COOL ENOUGH AND THE LOW TRACK IS MAINTAINED ACROSS SE OREGON.
COLD HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE ARKLAMISS TODAY AS STRONG COLD AIR ADVECTION KEEPS TEMPERATURES COOL. HIGHS TODAY WILL RANGE FROM NEAR FREEZING IN THE DELTA TO THE UPPER 40S IN HATTIESBURG.
VCT TAF SITE A BIT FARTHER NORTH AND AWAY FROM DEVELOPING COASTAL TROUGH COULD SEE VFR CIGS FOR A TIME THIS AFTERNOON. MAIN FEATURE OF THE SHORT TERM FORECAST IS A COASTAL TROUGH THAT IS FORECAST TO DEVELOP TODAY. NOT REALLY SEEING ANY INDICATION OF THE TROUGH SO FAR EARLY THIS MORNING. AS THIS TROUGH DEVELOPS IT WILL LEAD TO AN ISENTROPIC LIFT PATTERN ACROSS THE REGION. COASTAL TROUGH WILL BEGIN TO WEAKEN AND MOVE EASTWARD ON SATURDAY.
Temperatures are well below freezing and will not get above freezing across most of the Permian Basin and southeast New Mexico this afternoon. An upper trough will begin developing just off the coast of California over the weekend with the upper flow becoming westerly to southwesterly.
A LARGE SPRAWLING UPPER TROUGH HAS GOBBLED UP THE ENTIRE COUNTRY WITH THE EXCEPTION OF FLORIDA. THERE IS ALSO A MID LEVEL TROUGH AXIS STRUNG OUT ACROSS THE SRN GREAT LAKES. MOST OF THE COUNTRY WAS DOMINATED BY A LARGE 1038MB HIGH PRESSURE WHICH WAS CENTERED SMACK DAB IN THE MIDDLE OF THE COUNTRY. HECK THE LAST TIME IT BROKE FREEZING IN GAYLORD WAS OVER A MONTH AGO. HIGH PRESSURE WILL BE IN CONTROL SATURDAY INTO SATURDAY NIGHT LEADING TO MOSTLY CLEAR CONDITIONS.
A MUCH COOLER AIR MASS WILL MOVE INTO THE AREA TODAY AND THE COMBINATION OF THE TWO WILL BRING INCREASING SHOWERS OVER MOST OF THE AREA TODAY. THE UPPER TROUGH WILL GRADUALLY MOVE SOUTH TONIGHT, BUT THE TROUGH AXIS IS STILL EXPECTED TO BE IN NORTHERN CAL EARLY SATURDAY MORNING. THE UPPER TROUGH WILL MOVE SOUTH SATURDAY AND PRECIPITATION WILL DECREASE FROM NORTH TO SOUTH AND SKIES WILL CLEAR OUT.
504 AM CST Fri Feb 27 2015 A very cold but dry day is on tap across central Illinois today as high pressure builds into the region.
1003 AM EST FRI FEB 27 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TODAY AND MOVE OFF TO THE EAST LATER SATURDAY.
A STORM SYSTEM WILL BRING SHOWERS AND COOLER TEMPERATURES TO THE AREA TOMORROW THROUGH THE WEEKEND.
639 AM EST FRI FEB 27 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TODAY AND MOVE OFF TO THE EAST LATER SATURDAY.
SO WILL UPDATE TO EXTEND THE LOW/SLIGHT CHANCE POP AND MENTION OF FLURRIES INTO THE AFTERNOON.
630 AM EST FRI FEB 27 2015 STRONG HIGH PRESSURE OVER THE CENTRAL PLAINS WILL MOVE ACROSS THE LOWER LAKES SATURDAY THEN MOVE OFF THE MID ATLANTIC COAST SATURDAY NIGHT.
649 AM EST FRI FEB 27 2015 HIGH PRESSURE BUILDS INTO THE REGION THROUGH SATURDAY NIGHT.
633 AM EST FRI FEB 27 2015 A STABLE STRATUS DECK WITH MVFR CIGS RANGING FROM 010-020 FT IN THE WAKE OF THE COLD FRONT THAT MOVED THROUGH YESTERDAY WILL CONTINUE TO IMPACT THE REGION TODAY. NNW WINDS WILL GRADUALLY VEER TO THE NORTHEAST THROUGH THE 24 HR PERIOD AS HIGH PRESSURE BUILDS EASTWARD NORTH OF THE TERMINALS. DEWPOINTS IN THE WAKE OF THE FRONT RANGE FROM THE MID 50S ACROSS THE GULF COAST TO THE LOW TO MID 60S ACROSS THE ATLANTIC COAST WITH ALL OBSERVATIONS REPORTING LIGHT NORTHERLY SURFACE WINDS.
AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. THE 12Z MORNING SOUNDING INDICATED THE LOWER TO MID TROPOSPHERE WAS SOMEWHAT MOIST WITH PWAT AT 1. THE CENTER OF 1040 MB ARCTIC HIGH PRESSURE OVER THE CENTRAL PLAINS WILL BEGIN TO BLEED EASTWARD TOWARDS THE OHIO VALLEY BY DAYS END. THIS WILL ALLOW FOR STRONGER SURFACE WINDS ACROSS THE WATERS WEST OF THE SEVEN MILE BRIDGE OUT BEYOND THE TORTUGAS. HAWK CHANNEL FROM THE WEST END OF THE SEVEN MILE BRIDGE THROUGH HALFMOON SHOAL. AND THE LOWER STRAITS OF FLORIDA SOUTH OF THE DRY TORTUGAS. AS A STRONG HIGH PRESSURE SYSTEM BUILDS NORTHWEST TO NORTH OF THE FLORIDA KEYS TONIGHT MVFR CONDITIONS WITH BRIEF IFR CONDITIONS ARE POSSIBLE AT THE KEY WEST AND MARATHON TERMINALS THROUGH LATE MORNING.
956 AM EST FRI FEB 27 2015 HIGH PRESSURE BUILDS INTO THE REGION THROUGH SATURDAY NIGHT.
/ISSUED 312 AM EST FRI FEB 27 2015/ LATEST SURFACE ANALYSIS SHOWS STRONG HIGH PRESSURE OVER THE CENTRAL PLAINS WITH RIDGING NOTED THROUGH THE TENNESSEE VALLEY AND NORTH GEORGIA.
925 AM EST FRI FEB 27 2015 THE COLD FRONT WHICH MOVED SOUTH THROUGH THE REGION YESTERDAY IS NOW ACROSS THE FLORIDA STRAITS EARLY THIS MORNING AND WILL SOON BECOME STATIONARY BY AFTERNOON. REVIEW OF 12Z RAOB DATA SHOWS A DEEP LAYERED SOUTHWEST FLOW OVERRIDING THE LOW-LEVEL (SURFACE-925MB) NORTHEAST FLOW WHICH IS AND WILL CONTINUE TO PRODUCE CONSIDERABLE CLOUDINESS ACROSS THE REGION TODAY AND INTO THE WEEKEND. IT WILL BE A COOL AND DAMP DAY WITH THE CLOUDS AND LOW RAIN CHANCES KEEPING TEMPERATURES BELOW NORMAL WITH HIGHS ONLY EXPECTED TO REACH INTO THE LOWER 60S ACROSS THE NATURE COAST. A LARGE RIDGE OF HIGH PRESSURE WILL REMAIN NORTH OF THE WATERS THROUGH THE WEEKEND RESULTING IN ENHANCED EASTERLY FLOW WITH EVENING SURGES.
THE MAIN UPDATE THIS MORNING WAS TO MOVE THE HIGHER POPS A LITTLE FURTHER NORTH AND TOWARDS THE GULF COAST. /ISSUED 633 AM EST FRI FEB 27 2015/ A STABLE STRATUS DECK WITH MVFR CIGS RANGING FROM 010-020 FT IN THE WAKE OF THE COLD FRONT THAT MOVED THROUGH YESTERDAY WILL CONTINUE TO IMPACT THE REGION TODAY. NNW WINDS WILL GRADUALLY VEER TO THE NORTHEAST THROUGH THE 24 HR PERIOD AS HIGH PRESSURE BUILDS EASTWARD NORTH OF THE TERMINALS. DEWPOINTS IN THE WAKE OF THE FRONT RANGE FROM THE MID 50S ACROSS THE GULF COAST TO THE LOW TO MID 60S ACROSS THE ATLANTIC COAST WITH ALL OBSERVATIONS REPORTING LIGHT NORTHERLY SURFACE WINDS.
The high pressure is keeping winds on the light side, but with the cold temperatures the light northerly wind is resulting in wind chills currently in the 10 below to zero range and will continue into the mid morning hours before gradually warming. On Saturday an upper level trough will dig into the southwestern U. Initially the atmosphere will be all below freezing and all snow will occur. The heaviest snow will occur generally along and north an A Cassville to Springfield to Salem Missouri line where one to four inches are expected with the heaviest generally along and north of the Highway 54 corridor.
CLOUDS WILL BE ON THE INCREASE DURING THE DAY AS WEAK TROUGH MOVES OUT OF BRITISH COLUMBIA INTO THE NORTHERN ROCKIES.
743 AM EST FRI FEB 27 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO THE AREA FOR THE WEEKEND AND TEMPERATURES WILL REMAIN BELOW NORMAL. BROAD CYCLONIC 500MB FLOW BECOMES GENERALLY ZONAL TODAY AND TONIGHT WITH DRY HIGH PRESSURE OVER THE REGION AND PWAT VALUES AROUND A THIRD OF AN INCH. IF SOME PRECIPITATION DEVELOPS LATE SATURDAY NIGHT THERE IS SOME POSSIBILITY OF LIGHT FREEZING RAIN BUT AGAIN CONFIDENCE IS LOW IN THIS SCENARIO AT THIS TIME AND WILL MAINTAIN A DRY FORECAST.
510 AM MST FRI FEB 27 2015 12Z TAF CYCLE WIDESPREAD MVFR AND IFR CONDITIONS IN SNOW AND FREEZING FOG WILL AFLICT LOCATIONS ALONG AND E OF THE CONTDVD THROUGH MUCH OF THE DAY. ONE UPPER LEVEL TROUGH WILL EXIT EASTWARD WITH PRECIPITATION ENDING ACROSS S AND E AREAS BY MID DAY.
533 AM CST FRI FEB 27 2015 UNSEASONABLY COLD TEMPERATURES WILL ONCE AGAIN PLAGUE THE REGION AS ARCTIC HIGH PRESSURE CENTERED OVER THE FORECAST AREA THIS MORNING SLIDES SOUTHEAST INTO THE MID MISSISSIPPI VALLEY THIS AFTERNOON. READINGS WILL REACH THE LOWER TEENS TO LOWER 20S WITH THE WARMEST HIGHS IN SOUTH CENTRAL SD AND MISSOURI VALLEY WHERE LITTLE OR NO SNOWCOVER EXISTS. WIND CHILLS ARE EXPECTED TO STAY WARMER THAN ADVISORY CRITERIA. IT WILL BE WARMER ON SATURDAY WITH HIGHS LOWER/MID 20S EAST TO LOWER 30S THROUGH SOUTH CENTRAL SD.
515 AM CST FRI FEB 27 2015 1038 MB HIGH CENTERED OVER WESTERN IOWA WITH HIGH PRESSURE BUILDING ACROSS CENTRAL ALABAMA EARLY THIS MORNING WITH NORTHERLY FLOW AND TIGHTER BUT NOT OUTRAGEOUS SURFACE PRESSURE GRADIENTS. NORTHERLY WINDS WILL BE PRESENT THIS MORNING BUT DON'T EXPECT THEM TO BE TOO ROBUST AS BOUNDARY WAS ON THE WEAK SIDE AND RIDGE WILL BE SLIDING CLOSER TOWARD INDIANA AND MORE WIDESPREAD WITH GRADIENTS WEAKENING TODAY. SHOULD SEE A CHILLY START WITH EFFECTS OF THE RIDGE. TO THE EAST OVER OHIO/PENNSYLVANIA ALLOWING FOR THE LOW LEVEL WINDS TO TURN FROM NORTHERLY TO EASTERLY DURING THE DAY WITH THE RIDGE SLIDING TO THE MID ATLANTIC COAST BY SATURDAY NIGHT WITH LITTLE DECREASE IN STRENGTH.
1038 MB HIGH CENTERED OVER WESTERN IOWA WITH HIGH PRESSURE BUILDING ACROSS CENTRAL ALABAMA EARLY THIS MORNING WITH NORTHERLY FLOW AND TIGHTER BUT NOT OUTRAGEOUS SURFACE PRESSURE GRADIENTS. NORTHERLY WINDS WILL BE PRESENT THIS MORNING BUT DON'T EXPECT THEM TO BE TOO ROBUST AS BOUNDARY WAS ON THE WEAK SIDE AND RIDGE WILL BE SLIDING CLOSER TOWARD INDIANA AND MORE WIDESPREAD WITH GRADIENTS WEAKENING TODAY. SHOULD SEE A CHILLY START WITH EFFECTS OF THE RIDGE. TO THE EAST OVER OHIO/PENNSYLVANIA ALLOWING FOR THE LOW LEVEL WINDS TO TURN FROM NORTHERLY TO EASTERLY DURING THE DAY WITH THE RIDGE SLIDING TO THE MID ATLANTIC COAST BY SATURDAY NIGHT WITH LITTLE DECREASE IN STRENGTH.
THE UAH MIPS CEILOMETER ALSO INDICATES HYDROMETEORS FALLING FROM THE LOW CLOUD DECK. TEMPS BEHIND THE CDFNT WERE IN THE SINGLE DIGITS/TEENS WHILE AHEAD OF THE CDFNT TEMPS WERE IN THE LOWER 30S.
403 AM PST Fri Feb 27 2015 A weather system will move into the area today, leading to cooler and wetter weather into the weekend. An upper level trough is currently situated off the Washington coast, with northwesterly flow persisting aloft across California. The aforementioned trough will continue to shift southward through the course of the day. Given the convective nature of today's precipitation, showers could be hit- or-miss especially across the lower elevations. Still expecting roughly 4-8" of snow accumulation above 5500 ft this afternoon through Saturday, with up to a foot at the highest elevations. Given the high traffic volume across the Sierra on Fri/Sat, some spinouts, slower travel, and chain controls should be expected. The upper low shifts overhead Saturday, and moves south Saturday night.
Temperatures will struggle to reach freezing north of an Ozona to Mason line today. Due to saturation in only the low levels, freezing drizzle or light freezing rain are expected to be the predominant precipitation type.
512 AM CST FRI FEB 27 2015 HIGH PRESSURE IS THE DOMINATE FEATURE ACROSS THE NORTHERN PLAINS THIS MORNING. AND SLIGHTLY WARMER TEMPERATURES ARE EXPECTED. A VERY WEAK UPPER LEVEL TROUGH AND ASSOCIATED SURFACE REFLECTION WILL SLIDE ACROSS THE REGION SATURDAY.
HIGH PRESSURE WILL DRIFT EAST ACROSS THE REGION BRINGING SUNNY SKIES AND A CLEAR NIGHT. DESPITE HIGH PRESSURE RIDGE AXIS WELL OFF TO THE WEST. HIGH PRESSURE RIDGE PASSES JUST TO THE SOUTH OF WI TONIGHT. HIGH PRESSURE WILL DRIFT EAST THROUGH THE DAY. SOUTHERLY WINDS WILL BRING SLIGHTLY WARMER AIR BACK INTO SOUTHERN WI.
COOLER TEMPERATURES AND SOME MOUNTAIN SNOW TODAY THROUGH SATURDAY.
Freezing drizzle is occurring in Midland, so the Winter Weather Advisory has been expanded to include central and southern portions of the Permian Basin. Freezing fog is also possible across this area due to the low dew point depressions. Freezing drizzle and freezing fog have been added to the forecast grids for this morning to reflect these changes. Temperatures are well below freezing and will not get above freezing across most of the Permian Basin and southeast New Mexico this afternoon. An upper trough will begin developing just off the coast of California over the weekend with the upper flow becoming westerly to southwesterly.
900 AM EST FRI FEB 27 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO THE AREA FOR THE WEEKEND AND TEMPERATURES WILL REMAIN BELOW NORMAL. BROAD CYCLONIC 500MB FLOW BECOMES GENERALLY ZONAL TODAY AND TONIGHT WITH DRY HIGH PRESSURE OVER THE REGION AND PWAT VALUES AROUND A THIRD OF AN INCH. IF SOME PRECIPITATION DEVELOPS LATE SATURDAY NIGHT THERE IS SOME POSSIBILITY OF LIGHT FREEZING RAIN BUT AGAIN CONFIDENCE IS LOW IN THIS SCENARIO AT THIS TIME AND WILL MAINTAIN A DRY FORECAST.
AS THE LOW DROPS INTO OREGON THIS AFTERNOON. THE LEADING EDGE OF THE TROUGH WILL MOVE INTO CENTRAL CALIFORNIA WITH 500-MB HEIGHTS OVER THE CENTRAL SAN JOAQUIN VALLEY ARE FORECAST TO FALL TO 5520 METERS BY 00Z SATURDAY /1600 PST TODAY/. 62 INCH IN THE HIGHER ELEVATIONS OF THE SOUTHERN SIERRA NEVADA/ COULD SEE 4-6 INCHES OF SNOW NEAR THE CREST.
WINDS INCREASE, AS COLD ARCTIC HIGH PRESSURE MOVES EAST INTO THE MISSOURI VALLEY, WITH SOUTHEAST WINDS AT 10 TO 20 MPH. A STRONG UPPER LEVEL TROUGH WILL BE DROPPING SOUTH OVER THE WESTERN STATES AT THE BEGINNING OF THE PERIOD ON SATURDAY WHILE AT THE SAME TIME, AN UPPER LEVEL WAVE WILL BE DROPPING SOUTH FROM CANADA INTO THE NORTHERN PLAINS.
COLDEST MIDLEVEL TEMPERATURES PUSHING OUT OF THE STATE TODAY IN COMBINATION WITH AN SURFACE ANTICYCLONE PUSHING INTO PORTIONS OF OHIO WILL ALLOW WIND DIRECTIONS OVER SOUTHEASTERN MICHIGAN TO MAKE A CONCERTED MOVE TO SOUTHWESTERLY. COLD AIRMASS WILL REMAIN IN PLACE INTO EARLY THIS WEEKEND ALTHOUGH TEMPERATURES WILL MODERATE EVER SO SLIGHTLY AS THE LATEST ARCTIC HIGH PRESSURE SHIFTS TO THE EAST OF THE AREA SATURDAY NIGHT. HIGHS ON SATURDAY WILL CLIMB TO AROUND 20F WITH LOWS THAT NIGHT HOLDING INTO THE SINGLE DIGITS TO NEAR 10F AS BOTH THE COLDEST AIR SHIFTS EAST AND EXPANDING CLOUD COVER WORKS INTO THE AREA WITH THE APPROACH OF A LOW PRESSURE SYSTEM.
547 AM CST FRI FEB 27 2015 HIGH PRESSURE WAS MOVING INTO THE CENTRAL PLAINS EARLY THIS MORNING. WITH HIGH PRESSURE IN PLACE AND FRESH SNOW COVER. HIGH PRESSURE WILL BE MOVING OFF TO THE EAST SATURDAY.
1003 AM EST FRI FEB 27 2015 HIGH PRESSURE WILL BUILD OVER THE AREA TODAY AND REMAIN THROUGH THE WEEKEND.
High pressure will be the dominant feature today with mostly sunny skies and a dry airmass in place. Afternoon high temperatures will be above normal and reach the low to mid 80s across the area.
A COLD FRONT WILL PUSH THROUGH FROM NORTH TO SOUTH TUESDAY MORNING. TEMPS ARE ALREADY WARMING UP OVER THE HIGHER ELEVATIONS. THE COLD FRONT OF THIS SYSTEM MAY HAVE A SLIGHT DIP IN IT AS IT COMES ACROSS THE AREA. BUT WILL LIKELY RISE INTO THE 50S TO NEAR 60F IN THE SOUTH BEFORE THE COLD FRONT ARRIVES.
THIS FRONT WILL WAVE NORTHWARD AS A WARM FRONT TODAY. ON TUESDAY AN UPPER TROUGH WILL PUSH THE FRONT EASTWARD AND OUT OF THE FORECAST AREA.
WEST TO NORTHWEST MID TO UPPER FLOW WILL BE PRESENT ACROSS THE REGION TODAY AS A LARGE TROUGH MOVES FURTHER EAST INTO THE ATLANTIC AND AN UPPER RIDGE BUILDS EAST ACROSS THE REGION FROM THE SOUTHERN PLAINS. THIS ALL RESULTS IN A DRY AND VERY WARM DAY ACROSS THE AREA WITH HIGHS CLIMBING INTO THE LOW 80S WITH UPPER 70S CLOSER TO THE COAST.
AN UPPER LEVEL RIDGE WILL BE IN PLACE ALOFT WITH HIGH PRESSURE EAST OF WESTERN KANSAS AT THE SURFACE. A TROUGH OF LOW PRESSURE WILL BE LOCATED AROUND THE KS/CO BORDER THROUGH TOMORROW LEADING TO SOUTHWEST WINDS ACROSS WESTERN KANSAS. AS FOR TEMPERATURES, LOWS TONIGHT LOOK TO DIP TO AROUND 40 DEGREES WITH HIGHS TOMORROW REACHING INTO THE LOWER TO MID 80S.
408 AM CDT MON MAR 16 2015 A STRONG UPPER RIDGE WILL BUILD EASTWARD INTO ALABAMA TODAY AND TONIGHT. A SHORT WAVE TROF MOVING THROUGH THE OHIO VALLEY REGION WILL PUSH A WEAK COLD FRONT INTO NORTH ALABAMA ON TUESDAY. THE POST-FRONTAL COOLER AIR WILL NOT REACH CENTRAL ALABAMA IN TIME TO PROVIDE ANY COOLER TEMPERATURES TUESDAY AFTERNOON.
631 AM EDT MON MAR 16 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE TO NEAR THE SOUTHERN TIP OF LAKE MICHIGAN THIS EVENING. AS IT MOVES EASTWARD OVERNIGHT IT WILL DRAG A COLD FRONT ACROSS THE REGION. HIGH PRESSURE WILL BEGIN TO BUILD INTO NORTHERN OHIO AND NW PA TUESDAY AFTERNOON.
MODELS ARE IN FAIR AGREEMENT NOW FINALLY WITH THE PASSAGE OF THE COLD FRONT ON MONDAY. THIS HIGH DRIFTS ACROSS THE AREA TUESDAY INTO TUESDAY NIGHT BRINGING MUCH COOLER TEMPS TO THE REGION THAN WHAT WE HAVE BEEN USED TO.
Then it is expected to become quite windy tonight as a cold front sweeps through the region.
IT COULD HAVE GOTTEN WARMER. A COLD FRONT WILL BEGIN TO DROP SOUTH INTO NORTHERN MINNESOTA LATER TONIGHT. HIGHS ON MONDAY SHOULD RANGE FROM THE LOWER 40S OVER THE NORTHERN FORECAST AREA TO THE UPPER 40S AND LOWER 50S OVER THE SOUTH. THE MODELS CONTINUE TO INDICATE THAT A MID-LEVEL FRONTOGENETICAL BAND WILL SPREAD OUT OF NORTH DAKOTA INTO NORTHERN MINNESOTA AND NW WISCONSIN LATE TONIGHT AND MONDAY WITH THE PASSAGE OF THE COLD FRONT. THE CENTER OF THE HIGH PRESSURE WILL BE IN THE DAKOTAS BUT VERY DRY AIR WILL PUSH INTO THE FORECAST AREA.
A FAIRLY STRONG COLD FRONT WILL START TO WORK INTO THE AREA BY LATE MORNING. OVER CENTRAL PARTS OF SOUTH DAKOTA THERE WILL BE PLENTY OF WIND JUST AS THE FRONT HITS BUT THE LOWEST RELATIVE HUMIDITY LIKELY TO BE ABOUT 35 TO 40 PERCENT AND THEN QUICKLY RISING AS THE COOLER AIR SETTLES IN.
411 AM CDT MON MAR 16 2015 UPPER LOW CHURNING ACROSS BAJA SUR THIS MORNING WILL CONTINUE TO USHER IN MID-HIGH CLOUDS THROUGH THE DAY. WILL SEE TEMPERATURES DROP INTO THE 40S ON THE CAPROCK WHILE LOCALES IN THE LOWER ELEVATIONS EAST OF THE CAPROCK ESCARPMENT REMAIN IN THE UPPER 40S TO MID 50S.
645 AM EDT MON MAR 16 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE TO NEAR THE SOUTHERN TIP OF LAKE MICHIGAN THIS EVENING. AS IT MOVES EASTWARD OVERNIGHT IT WILL DRAG A COLD FRONT ACROSS THE REGION. HIGH PRESSURE WILL BEGIN TO BUILD INTO NORTHERN OHIO AND NW PA TUESDAY AFTERNOON.
THE 06Z RUN OF THE NAM12 ALREADY HAS A SURFACE COLD FRONT STARTING TO CREEP SOUTH OF THE PALMER DIVIDE BETWEEN NOON AND 3 PM TODAY. BRINGING COOLER AIR. BUT COULD BE SOME FLURRIES OVER THE HIGHER TERRAIN ABOVE 6500 TO 7000 FEET.
355 AM EDT MON MAR 16 2015 SNOW SHOWERS WILL END THIS EVENING AS LOW PRESSURE MOVES AWAY FROM THE REGION. A RIDGE OF HIGH PRESSURE WILL ALLOW FOR A BRIEF PERIOD OF MAINLY DRY WEATHER OVERNIGHT INTO MONDAY WITH MILDER TEMPERATURES. A SERIES OF COLD FRONTS WILL BRING SCATTERED SNOW SHOWERS MONDAY NIGHT THROUGH TUESDAY NIGHT.
A BROAD AREA OF UPPER LEVEL RIDGING WILL BUILD INTO THE CENTRAL PLAINS TODAY WITH VERY WARM TEMPERATURES FORECAST. AT THE SURFACE A TROUGH OF LOW PRESSURE WILL PUSH INTO NORTHWEST KANSAS BY EVENING WITH SOUTH WINDS INCREASING TO 15 TO 25 MPH AHEAD OF THIS TROUGH INTO SOUTHWEST AND SOUTH CENTRAL KANSAS. THE COLD FRONT WILL PUSH THROUGH THE DODGE CITY AREA AROUND OR SHORTLY AFTER MIDNIGHT WITH INCREASING CLOUDS, ALONG WITH SHIFTING AND INCREASING NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH. OVERNIGHT LOWS WILL RANGE FROM THE UPPER 30S AND LOWER 40S, WITH WARMER MID 40S IN THE MEDICINE LODGE AREA.
400 AM EDT MON MAR 16 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE TO NEAR THE SOUTHERN TIP OF LAKE MICHIGAN THIS EVENING. AS IT MOVES EASTWARD OVERNIGHT IT WILL DRAG A COLD FRONT ACROSS THE REGION. HIGH PRESSURE WILL BEGIN TO BUILD INTO NORTHERN OHIO AND NW PA TUESDAY AFTERNOON.
A DRY COLD FRONT WILL MOVE THROUGH LATE TUESDAY NIGHT.
WARMEST DAY OF THE SEASON SO FAR IS EXPECTED TODAY WITH HIGHS TOPPING OFF IN THE LOW TO MID 70S. RIDGING ALOFT WILL RESULT IN DRY WEATHER THROUGH MID-WEEK WHEN A SYSTEM APPROACHES FROM THE SOUTHWEST. A COLD FRONT IS PROGGED TO MOVE THROUGH THE AREA TONIGHT.
HIGHS WILL BE COOLER TODAY WITH THICK CLOUD COVER AND COLD ADVECTION. THE MID LEVEL RIDGE BUILDS A BIT MORE TONIGHT AND TUESDAY AND THIS GENERATES MID LEVEL WARM ADVECTION OVER CENTRAL AND WESTERN ZONES.
WILL INCREASE CHANCES ACROSS NORTH-CENTRAL WISCONSIN TO ACCOUNT FOR THE HIGHER LIKELIHOOD OF RAIN. COLDER - BUT MORE SEASONABLE - AIR MOVES IN MONDAY NIGHT IN THE WAKE OF A SOUTHWARD MOVING COLD FRONT. MOVING FROM BROAD RIDGING TO A MORE ZONAL TO NORTHWEST FLOW. A WEST-EAST COLD FRONT WILL PASS THROUGH THE AREA FROM THE NORTH.
A RIDGE WILL REMAIN OVER THE PLAINS TONIGHT AND MONDAY. THE GFS IS SLOWER WITH THE TROUGH MOVING OVER THAT AREA, WHICH COULD LEAD TO A POSSIBLE EXPANSION OF THE CRITICAL AREA. MAX TEMPERATURES MONDAY WILL DEPEND ON THE LOCATION OF THE TROUGH. MAX TEMPERATURES COULD RANGE FROM THE LOWER TO MID 80S. COLD FRONTAL PASSAGE MONDAY NIGHT WILL BRING AN END TO THE WARM TEMPERATURES WITH GUSTY NORTHEAST WINDS THROUGH THE NIGHT. HIGH TEMPERATURES ON TUESDAY WILL BE IN THE LOW TO MID 50S.
SLIGHTLY DRIER AIR WILL MAKE IT FEEL MORE COMFORTABLE OUTDOORS THE NEXT FEW DAYS BUT TEMPERATURES WILL STILL REMAIN ABOVE NORMAL FOR THIS TIME OF THE YEAR WITH LOWS IN THE LOWER 60S EXCEPT FOR SOME 50S ACROSS THE NATURE COAST WITH DAYTIME HIGHS TODAY AND TUESDAY CLIMBING TO AROUND 80 ALONG THE COAST.
High cloudiness will otherwise continue to spread northeast from an upper low over Baja California. A few light showers may approach the I-10 corridor late tonight as the Baja upper low begins a move to the northeast.
332 AM CDT MON MAR 16 2015 A GENERALLY MEAN AMPLITUDE RIDGE PREVAILS ACROSS THE CONUS WITH A CUTOFF MID-LEVEL LOW MEANDERING OVER THE GULF OF CALIFORNIA WHILE AMPLIFIED RIDGING DEVELOPS OVER THE NORTHERN GULF OF MEXICO. 77 A HIGH PRESSURE SYSTEM OVER THE GULF OF MEXICO WILL BE THE DOMINANT PLAYER FOR SENSIBLE WEATHER OVER THE NEXT COUPLE OF DAYS.
DEW POINTS WERE IN THE 30S FROM THE GREAT LAKES INTO THE NORTHERN PLAINS WITH 40S AND HIGHER FROM THE SOUTHERN PLAINS INTO THE LOWER OHIO VALLEY. TONIGHT A STRONG COLD FRONT WILL SWEEP THROUGH THE AREA WITH BREEZY CONDITIONS. COOLER TEMPS CLOSER TO NORMAL WITH TRENDS SUPPORTING MAINLY DRY FOR THE EXTENDED. HIGH PRESSURE BUILDS IN TUESDAY NIGHT FOR DRY AND COLDER NIGHT AS WINDS DIMINISH BENEATH MAINLY CLEAR SKIES.
324 AM MDT MON MAR 16 2015 HIGH PRESSURE WILL CONTINUE TO DOMINATE TODAY. HIGH CLOUDS SHOULD AGAIN INCREASE THIS AFTERNOON AS MORE HIGH LEVEL MOISTURE ROTATES AROUND THE TOP OF THE RIDGE AND INTO THE FORECAST AREA FROM THE NORTH. IN SPITE OF THE HIGH CLOUDS. ON TUE A NORTHERN BRANCH COLD FRONT WILL PUSH UP AGAINST THE FRONT RANGE TO OUR EAST. ALSO MOISTURE WILL BEGIN TO BE DRAWN UP FROM THE SOUTH AS THE SOUTHERN BAJA LOW PRESSURE SYSTEM OPENS UP AND MOVES INTO CHIHUAHUA. THE INCREASED CLOUDS MAY SHAVE A COUPLE DEGREES OFF THE HIGH TEMPERATURES.
436 AM EDT MON MAR 16 2015 HIGH PRESSURE WILL REMAIN CENTERED TO THE SOUTHWEST THROUGH TONIGHT. A COLD FRONT WILL MOVE THROUGH TUESDAY.