Aikyam-Lab/Synoptic-Bench huggingface dataset:
447 AM CDT SAT OCT 24 2015 PERSISTENT HEAVY CONVECTION CONTINUES TO TRAIN ALONG BOUNDARY ORIENTED PARALLEL TO UPPER TROUGH FLOW. FROM BOTH THE SWD SHIFT OF THE UPPER TROUGH.
155 AM EDT SAT OCT 24 2015 AVIATION A LOW PRESSURE SYSTEM WILL MOVE INTO THE GREAT LAKES REGION TONIGHT AND SATURDAY AND BRING RAIN SHOWERS AND PERHAPS ISOLATED THUNDERSTORMS.
THIS EVENING THROUGH SATURDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER EASTERN SD. UPPER LEVEL ANALYSIS SHOWS TROF OVER THE EASTERN DAKOTAS AND NEB. DRY WEATHER AND NEAR TO SLIGHTLY ABOVE AVERAGE TEMPERATURES CAN BE EXPECTED OVER THE WEEKEND AS A WEAK RIDGE SLOWLY MOVES ACROSS THE PACIFIC NW AND THE ROCKIES. WITH 20S IN SOME VALLEY AREAS AND OVER THE HIGHER HILLS. WITH A WEAK SURFACE TROF SWITCHING WINDS TO THE NORTHWEST ACROSS NORTHEAST WY AND FAR WESTERN SD IN THE AFTERNOON.
317 AM CDT SAT OCT 24 2015 COOLER WEATHER HAS ARRIVED. SUBJECTIVE 00Z UPPER AIR ANALYSIS INDICATES NORTHERN STREAM UPPER=LEVEL TROUGH FROM THE IA/NEB BORDER THROUGH THE DAKOTAS AND INTO MB. SOUTHERN STREAM TROUGH LAGGED A BIT. TROUGH AT 850MB EXTENDED FROM THE DAKOTAS/MN BORDER THROUGH CENTRAL NEB/CENTRAL KS AND INTO NORTHERN TX. AHEAD OF THAT TROUGH. WITH COLD FRONT EXTENDING THROUGH CENTRAL IA/NORTHEASTERN MO/EASTERN KS/CENTRAL OK. COOLER POST-FRONTAL AIRMASS WILL KEEP TEMPS AROUND THE 60S THIS WEEKEND. WITH HIGH PRESSURE SLIDING ACROSS THE REGION TONIGHT/SUNDAY.
1045 PM PDT FRI OCT 23 2015 NEW AVIATION DISCUSSION LIGHT OFFSHORE WINDS AND HIGH PRESSURE WILL BRING ABOVE NORMAL TEMPERATURES INTO THE WEEKEND. WEAK LOW PRESSURE WILL QUICKLY MOVE THROUGH ON SUNDAY TO INCREASE THE CLOUD COVER.
400 AM EDT SAT OCT 24 2015 HIGH PRESSURE MOVES OFFSHORE TODAY. A COLD FRONT WILL CROSS THE REGION LATE TONIGHT AND SUNDAY MORNING.
CLOUD COVER MOVING IN AS HIGH PRESSURE SHIFTS EAST AND AN UPPER LEVEL SYSTEM APPROACHES.
620 AM EDT SAT OCT 24 2015 HIGH PRESSURE CENTERED OVER NORTHERN NEW ENGLAND MOVES OFF THE NORTHEAST COAST AS A FRONTAL SYSTEM MOVES INTO THE GREAT LAKES REGION TODAY. A COLD FRONT CROSSES THE AREA SUNDAY.
328 AM CDT SAT OCT 24 2015 08z/3am surface analysis shows 1004mb low over western Wisconsin, with cold front extending southward through eastern Iowa into Missouri. Meanwhile behind the boundary, windy and much cooler conditions are noted across the Plains. Rain chances will come to an end from west to east this afternoon as front pushes into Indiana, followed by windy and cooler conditions. High temperatures will likely be achieved during the morning, ranging from the lower 60s in the Illinois River Valley to the middle 70s south of I-70. High pressure will build into the Midwest tonight into Sunday, providing quiet weather with afternoon highs in the lower to middle 60s and overnight lows in the upper 30s and lower 40s.
LIGHT WINDS AND CLEAR SKIES WILL ALLOW TEMPERATURES TO DROP BELOW FREEZING OVER A VAST MAJORITY OF THE FORECAST AREA. A WEAK RIDGE WILL ALSO BUILD ACROSS THE AREA OVER THE WEEKEND SUPPRESSING PRECIPITATION CHANCES.
COOLER TEMPERATURES EXPECTED SUNDAY. AHEAD OF THE SURFACE COLD FRONT. THE COLD FRONT WILL REACH THE WESTERN REACHES OF THE CWA BY THE END OF THE DAY. FRONT WILL BE EAST OF THE RIDGES SUNDAY MORNING WITH LEFTOVER SHOWERS. IN THE EARLY MORNING OVER THE RIDGES.
MID/UPPER LEVEL RIDGING WILL NOSE ACROSS THE AREA TODAY. WITH WARM HIGHS IN THE LOWER/MID 80S FOR MOST LOCATIONS. WITH SEASONABLY MILD LOWS IN THE LOWER/MID 60S. SOME DIFFERENCES IN THE MODELS AS THE WEAK TROUGH MOVES A BIT CLOSER TO THE COAST. HIGHS WILL ONCE AGAIN TOP OUT IN THE LOWER/MID 80S. AN UPPER RIDGE WILL BE OVER THE REGION SUNDAY NIGHT.
THERE IS NOT A SIGNIFICANT DEGREE OF COLD AIR ADVECTION BEHIND THE COLD FRONT.
SATURDAY NIGHT THROUGH SUNDAY, WEAK UPPER LEVEL RIDGING AMPLIFIES OVER THE NORTHERN ROCKIES AHEAD OF AN UPPER LEVEL TROUGH MOVING TOWARD THE WEST COAST. A WEAK EMBEDDED DISTURBANCE MOVING THROUGH THE UPPER RIDGE SATURDAY NIGHT THROUGH SUNDAY MORNING COULD PRODUCE A FEW LIGHT SHOWERS OVER THE CENTRAL MT MTNS, OTHERWISE DRY CONDITIONS WILL PREVAIL THROUGH THE WEEKEND. SURFACE WINDS WILL REMAIN RELATIVELY LIGHT, BECOMING EASTERLY LATE SATURDAY THROUGH SUNDAY AS HIGH PRESSURE SLIDES SOUTHEAST FROM THE CANADIAN PRAIRIES TO THE NORTHERN PLAINS STATES.
254 AM CDT SAT OCT 24 2015 UPPER TROUGH CURRENTLY STRETCHES FROM THE UPPER MISSISSIPPI VALLEY INTO THE SOUTHERN HIGH PLAINS. AT THE SURFACE A COLD FRONT STRETCHES FROM THE WESTERN GREAT LAKES. HIGH PRESSURE WILL REMAIN SITUATED OVER THE CENTRAL PLAINS PROVIDING PLENTY OF SUN AND SEASONAL TEMPS. THE PROGRESSIVE NATURE OF THIS TROUGH SHOULD LIMIT ANY KIND OF WIDESPREAD HEAVY RAINFALL EVENT. EVEN THOUGH SOME COOLER AIR WILL SPILL SOUTH MID WEEK BEHIND THE DEPARTING WAVE. IT STILL LOOKS LIKE TEMPS WILL BE CLOSE TO OR A FEW DEGREES COOLER THAN SEASONAL READINGS.
A low pressure system will move from the upper Midwest this morning into the Great Lakes region and into southeastern Canada by early Sunday morning. This low will drag a cold front through the forecast area this evening into the overnight hours. Ahead of the cold front this morning, light returns are showing up on radar. Temperatures today will top out in the lower to mid 70s ahead of the cold front. The front will bring cooler air with it. Lows tonight will dip into the 50s, with highs Sunday in the lower to mid 60s.
348 AM CDT SAT OCT 24 2015 Upper trough extending from NM down into Northern Mexico this morning will continue to slowly push east.
THE 500 MB TROUGH THAT IS PUSHING INTO WEST TX EARLY THIS MORNING IS FORCING WHAT REMAINS OF PATRICIA OVER CENTRAL MEXICO TO THE NORTHEAST PRETTY QUICKLY THIS MORNING. AS PATRICIA BREAKS APART OVER THE HIGHER TERRAIN OF MEXICO MUCH OF THE TROPICAL MOISTURE FROM THE STORM WILL CONTINUE STREAMING NORTHEAST AHEAD OF THE 500 MB TROUGH MOVING IN FROM THE WEST. THIS TROUGH AXIS WILL ALSO PUSH A COLD FRONT INTO SOUTHERN TX LATE SAT NIGHT INTO EARLY SUN. THE 500 MB TROUGH AXIS AND ASSOCIATED COLD FRONT WILL MOVE OVER THE TX COASTLINE LATER IN THE DAY ON SUN WHICH WILL ALLOW DRIER AIR TO START FILTERING INTO THE REGION FROM THE WEST RESULTING IN LOWER CONV CHCS.
A WEAK RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE AREA THROUGH SATURDAY. AN UPPER LEVEL LOW PRESSURE SYSTEM OFF THE COAST WILL LIFT A WEAK WARM FRONT UP THE COAST SATURDAY.
416 AM CDT SAT OCT 24 2015 UPPER TROF WILL CROSS THE STATE THIS MORNING WITH CLOUDINESS REMAINING OVER THE AREA TO START THE DAY. AS THE TROF PASSES THIS MORNING.
850 TROUGH AXIS AND FGEN REGION ALONG WITH UPPER JET SUPPORT. STILL DECREASING CLOUDS AND LIGHTER WINDS WITH THE UPPER RIDGE BUILDING IN MAY LEAD TO FOG FORMATION LATE TONIGHT OVER THE MOIST GROUND. COOLER NORTHWEST FLOW OVER LAKE SUPERIOR MAY DEVELOP LAKE CLOUDS WHICH WILL COMPLICATE OVERNIGHT LOWS OVER THE NORTH.
06Z SURFACE ANALYSIS HAS THE COLD FRONT IN CENTRAL OKLAHOMA FROM NE OF SEMINOLE TO LAWTON AND FARTHER SOUTHWEST INTO WRN N TX. THE UPPER LEVEL TROUGH CONTINUES TO PUSH EASTWARD. THE SFC COLD FRONT WILL CONTINUE TO PUSH S/SE INTO NRN TX. INTERACTING WITH THE STALLED WARM FRONT OVER NRN TX. THE REMAINING RAIN IS EXPECTED TO SLIDE S/SE AS THE COLD FRONT PUSHES SOUTH. INFLUENCE THE DEEPENING TROUGH OVER TX INTO NRN MEXICO.
trough and will likely aid in seeding the atmosphere to produce quicker/higher amounts of precipitation later today (Saturday). 6 inches likely south of a line from Poplar Bluff to Owensboro Kentucky, associated primarily with the cold frontal passage through the area. Weak forcing instability in place, so added limited/differential PoPs for thunderstorm activity, in advance of cold front today and tonight.
Light and variable winds across the region for the next few hours before a cold front moves south through the region early morning, bringing strong NE winds to all locations.
523 AM EDT SAT OCT 24 2015 A COLD FRONT WILL MOVE OUT OF THE MIDWEST AND BRING A ROUND OF SHOWERS TO THE REGION LATER TODAY INTO THE OVERNIGHT. HIGH PRESSURE OVER NEW ENGLAND WILL CONTINUE EAST AND OFF CANADIAN MARITIMES. MEANWHILE A COLD FRONT WILL MOVE OUT OF THE MIDWEST. NEAR TERM OPERATIONAL MODELS ARE IN GOOD AGREEMENT WITH THE TIMING OF THE COLD FRONT. AND MOVING OFF TO THE SOUTHEAST OF THE LOWER SUSQ VALLEY AROUND OR SHORTLY AFTER SUNRISE SUNDAY. 75" OVER THE NW MOUNTAINS TO ONLY A TENTH OR TWO OVER THE LOWER SUSQ. HIGHS OVER THE NW WILL BE COOLER. AFTER THE COLD FRONT MOVES THROUGH SUNDAY.
515 AM EDT SAT OCT 24 2015 HIGH PRESSURE WILL CREST OVER THE REGION EARLY THIS MORNING THEN MOVE EAST THIS AFTERNOON. LOW PRESSURE WILL TRACK NORTHWEST OF MAINE TONIGHT THROUGH SUNDAY. DRAWING A COLD FRONT ACROSS THE REGION SUNDAY.
AHEAD OF THE SURFACE COLD FRONT. FRONT WILL BE EAST OF THE RIDGES SUNDAY MORNING WITH LEFTOVER SHOWERS. IN THE EARLY MORNING OVER THE RIDGES.
With low level cold air advection behind the cold front as well as low level cloudiness, especially during the morning hours, forecasting a non diurnal temperature trend with nearly steady or even slowly falling temperatures during the daytime hours.
336 AM MDT SAT OCT 24 2015 THE WATER VAPOR LOOP SHOWED A UPPER TROUGH AXIS FROM WEST OF HUDSON BAY CANADA SOUTH ACROSS THE EASTERN DAKOTAS TO THE SOUTHERN ROCKIES. TEMPERATURES RANGED FROM THE LOWER 30S TO LOWER 40S. MID/HIGH CLOUDS WERE INCREASING OVER THE INTERMTN WEST WITH A UPPER RIDGE AXIS ALONG THE PACIFIC COAST. UPPER RIDGE PROGRESSES EAST ACROSS THE INTERMTN WEST NEXT 24 HOURS AS THE PACIFIC TROUGH NEARS THE WEST COAST.
134 AM EDT SAT OCT 24 2015 HIGH PRESSURE MOVING TOWARD NORTHERN NEW ENGLAND WILL QUICKLY GIVE WAY TO A FRONTAL SYSTEM MOVING IN FROM THE UPPER MIDWEST. THE HIGH MOVES OFFSHORE BY THIS AFTERNOON. A COLD FRONT WILL THEN CROSS THE AREA ON SUNDAY.
451 AM EDT SAT OCT 24 2015 A COLD FRONT WILL MOVE OUT OF THE MIDWEST AND BRING A ROUND OF SHOWERS TO THE REGION LATER TODAY INTO THE OVERNIGHT. HIGH PRESSURE OVER NEW ENGLAND WILL CONTINUE EAST AND OFF CANADIAN MARITIMES. MEANWHILE A COLD FRONT WILL MOVE OUT OF THE MIDWEST. NEAR TERM OPERATIONAL MODELS ARE IN GOOD AGREEMENT WITH THE TIMING OF THE COLD FRONT. AND MOVING OFF TO THE SOUTHEAST OF THE LOWER SUSQ VALLEY AROUND OR SHORTLY AFTER SUNRISE SUNDAY. 75" OVER THE NW MOUNTAINS TO ONLY A TENTH OR TWO OVER THE LOWER SUSQ. HIGHS OVER THE NW WILL BE COOLER. AFTER THE COLD FRONT MOVES THROUGH SUNDAY.
IN LIGHT OF THE RECENT RAINFALL AND COOLER TEMPERATURE FORECAST. PLENTIFUL BREAKS IN THESE DECKS SUPPORT THE COOLER FORECAST WITH FOG. AS REMAINING RAINFALL IS NOW FOCUSED ACROSS THE RED RIVER VALLEY WITH CLEARING SKIES APPROACHING THE HIGHWAY 83 CORRIDOR. CURRENT SURFACE ANALYSIS PLACES LOW OVER EASTERN SOUTH DAKOTA WITH BROAD RIDGE OVER THE NORTHERN ROCKIES INTO THE PACIFIC NORTHWEST. UPPER LEVEL ANALYSIS PLACES MODEST RIDGING OVER THE NORTHWESTERN CONUS WITH TROUGH CUTTING THROUGH THE NORTHERN/CENTRAL PLAINS SLIDING INTO THE MIDWEST. TROUGH WILL CONTINUE ITS EASTWARD PROGRESSION WITH PRECIPITATION CONTINUING TO DIMINISH FROM WEST TO EAST.
BUT STILL EXPECT AXIS OF RAINFALL TO REDEVELOP MORE OVER THE NORTHWEST HALF OF THE STATE AS A COLD FRONT NEARS THE STATE.
TEMPERATURES DIPPED INTO THE LOW 30S TO MID 40S WITH LOWEST TEMPERATURES OVER EAST COLORADO AND WARMEST TEMPERATURES OVER NORTHWEST KANSAS. A HIGH PRESSURE IS CENTERED OVER THE HIGH PLAINS. A DRY FORECAST HAS BEEN ISSUED AS ZONAL FLOW IS EXPECTED ACROSS THE HIGH PLAINS. A LEE TROUGH DEEPENS OVER CENTRAL COLORADO. WE ISSUED A FROST ADVISORY AS A RESULT OF LOWS IN THE LOW/MID 30S UNDER CLEAR SKIES AND LIGHT WINDS.
1210 AM CDT SAT OCT 24 2015 EXPECT A SUPER WET ARKLATEX ALL WEEKEND AS A COLD FRONT OVER THE OK/TX PNHDL MEETS TROPICAL MOISTURE FROM HURRICANE PATRICIA NOW INLAND OVER SW MEXICO.
A high pressure area will move across the state with northwesterly winds eventually becoming light/southerly by midnight tonight. With the high pressure and lower dewpoints, have the concern for frost for Sunday morning. Weak lee troughing will continue through the overnight period, so there will be light southerly winds, which could result in some mixing.
328 AM CDT SAT OCT 24 2015 As of 3 am this morning, a cold front was currently located near Anderson to Bolivar to near Osage Beach. Temperatures will be seasonable with highs in the lower to middle 60s. Otherwise, drier and cooler air will continue to move into the Missouri Ozarks Sunday appears to be a nice day with some sunshine and some high clouds towards the south.
310 AM PDT SAT OCT 24 2015 LIGHT OFFSHORE WINDS AND HIGH PRESSURE WILL BRING ABOVE NORMAL TEMPERATURES THROUGH THE WEEKEND. WEAK LOW PRESSURE WILL QUICKLY MOVE THROUGH ON SUNDAY TO INCREASE THE CLOUD COVER.
355 AM PDT SAT OCT 24 2015 HIGH PRESSURE ALOFT AND WEAK OFFSHORE LOWER LEVEL FLOW WILL BRING WARMING TODAY WITH LOCALLY GUSTY NORTHEAST WINDS NEAR THE COASTAL FOOTHILLS.
352 AM CDT SAT OCT 24 2015 Cold front currently from far NW AR through south central OK and making slow progress southeastward.
THIS WAS DUE TO HIGH PRESSURE (SUBSIDENCE) AND FAIRLY DRY LOW/MID LEVELS OF THE ATMOSPHERE ACROSS THE TN VALLEY. AS A RESULT WILL REMOVE LOW POPS FOR THIS EVENING BUT WILL KEEP THE LOW POPS AFTER 06Z MAINLY FOR LOCATIONS WEST OF I65 (EXPECTING ONLY VERY LIGHT/SCT SHRA OVERNIGHT).
643 AM EDT SAT OCT 24 2015 TODAY WILL FEATURE MILD TEMPERATURES AND CHANCES FOR RAIN SHOWERS IN ADVANCE OF A COLD FRONT THAT WILL SWING THROUGH THE AREA LATER THIS AFTERNOON.
TODAY THROUGH SUNDAY NIGHT LONGWAVE TROUGH IS CROSSING THE CNTRL CONUS WITH THE MAIN AXIS NOW OVER ERN MT TO THE BLKHLS. SUNSHINE IS EXPECTED TODAY AS HIGH PRESSURE BUILDS IN. BUT SWITCH BACK TO THE NW AS A WEAK TROUGH CROSSES THE AREA THIS AFTN.
226 AM EDT SAT OCT 24 2015 HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE WEEKEND.
IT WILL BE DRY WITH WARMER TEMPERATURES THIS WEEKEND.
1039 PM EST FRI MAR 4 2016 A RIDGE OF HIGH PRESSURE WILL MOVE THROUGH EARLY SATURDAY.
LOW PRESSURE WILL BRING A MIX OF RAIN AND SNOW SATURDAY INTO SATURDAY NIGHT. HAVE GONE WITH A BIT COOLER SOLUTION WITH A BLEND OF LOW LEVEL THICKNESS. ALLOWING FOR A RAIN SNOW MIX INTO THE AFTERNOON MAINLY FROM PITTSBURGH NORTHWARD AND IN THE RIDGES. STILL EXPECT LITTLE ACCUMULATION DAYLIGHT HOURS SATURDAY WITH POSSIBLY A COATING IN THE HIGHER ELEVATIONS. TEMPERATURES FALL OFF WITH A BETTER CHANCE FOR SOME ACCUMULATING SNOW IN THE RIDGES WITH AN INCH OR TWO POSSIBLE.
ALSO RAISED TEMPERATURES EAST WHERE CLOUDS PERSIST BUT LOWERED MIN TEMPERATURES WEST AS THEY HAVE BEEN FALLING RAPIDLY INTO THE LOWER 20S. CURRENT SURFACE ANALYSIS PLACES WEAK LOW OVER THE RED RIVER VALLEY WITH COLD FRONT DROPPING TO THE SOUTH INTO THE CENTRAL PLAINS. UPPER LEVEL ANALYSIS PLACES PLACES RIDGE OVER AND JUST TO THE LEE OF THE ROCKIES WITH TROUGH PUSHING TOWARDS THE MIDWEST. MILD TEMPERATURES EXPECTED OVER THE AREA AS UPPER RIDGE GRADUALLY MOVES OVER. WARMER AIR CONTINUES TO PUSH IN BRINGING VERY MILD AND BREEZY CONDITIONS.
WITH SUSTAINED SPEEDS ARND 8 KTS AND GUSTS UP TO 16 KTS PSBL THRU MID-AFTN -- PRIOR TO THE ARRIVAL OF A REINFORCING COLD FRONT. ARE INDICATING THAT THE LOW CLOUDS SHOULD BEGIN TO DISSIPATE BY MID EVENING FROM WEST TO EAST ACROSS THE FORECAST AREA. HAVE FOLLOWED CLOSER TO THE SLIGHTLY COOLER NAM TEMP GUIDANCE FOR TONIGHTS LOW TEMPS.
752 PM EST FRI MAR 4 2016 THE COLD FRONT IS CURRENTLY PUSHING THROUGH SOUTH FLORIDA THIS EVENING AND SHOULD STALL OUT OVER THE FLORIDA KEYS AFTER MIDNIGHT. A COLD FRONT OVER THE LAKE OKEECHOBEE REGION WILL CONTINUE TO MOVE SOUTHWARD THROUGH SOUTH FLORIDA THIS AFTERNOON AND STALL OVER THE FLORIDA KEYS TONIGHT INTO SATURDAY. AS HIGH PRESSURE MOVES QUICKLY EAST ACROSS THE SOUTHEASTERN UNITED STATES. A LOW PRESSURE SYSTEM WILL ALSO MOVE SOUTHEAST FROM CENTRAL CANADA THROUGH THE GREAT LAKES AND INTO THE MID ATLANTIC STATES THIS WEEKEND.
Morning lows will be in the lower 40s inland with upper 40s near the coast.
Upper level ridge will begin to nudge eastward into the area late Saturday and despite the surface frontal passage, we should still see temperatures climb into the 60s in most locations.
SOME CONCERN ABOUT SOME FOG DEVELOPMENT LATER TONIGHT BUT IT SHOULD BE PATCHY WITH A WEAK DOWN VALLEY FLOW APPARENT KEEPING SOME MIXING GOING IN THE LOW LEVELS.
754 PM EST FRI MAR 4 2016 LOW PRESSURE SOUTH OF THE REGION WILL MOVE EAST INTO THE OPEN ATLANTIC TONIGHT. HIGH PRESSURE WILL REMAIN ACROSS THE AREA THROUGH THIS WEEKEND. HIGH PRESSURE ACROSS THE NORTH WILL BRING A CLEAR AND VERY COLD NIGHT TONIGHT WITH LOWS NEAR 20 BELOW IN SOME OF THE NORTHERN VALLEYS. A LARGE AREA OF LOW PRESSURE PASSING WELL SOUTH OF THE AREA WILL BRING BREEZY CONDITIONS ALONG THE COAST TONIGHT INTO SATURDAY WITH MORE TRANQUIL CONDITIONS OVER THE NORTH. SATURDAY WILL BE SUNNY WITH SOME MODERATION IN TEMPERATURES AFTER A COLD START AS HIGH PRESSURE REMAINS ACROSS THE REGION.
951 PM CST FRI MAR 4 2016 Building mid-level ridging over the western CONUS as depicted on water-vapor imagery will produce continued warming conditions into the early weekend as it pushes eastward over the Central Plains. Fire weather conditions should improve beyond today as a weak cold front will cross the region this evening. Saturday will be pleasant with slightly cooler, though still above-normal temperatures as northwesterly surface flow continues through the early weekend. Temperatures north of I-70 will hover in the low to mid 50s by the afternoon with low to mid 60s expected for areas south of the Missouri River.
COLD FRONT HAS SETTLED TO OUR SOUTH. HIGH PRESSURE RIDGE WILL PUSH TO THE EASTERN SEABOARD LATE TONIGHT AND OFFSHORE ON SAT. THE PRESSURE GRADIENT WILL GRADUALLY WEAKEN AND EXPECT A COASTAL TROUGH TO DEVELOP LATE TONIGHT. DAYTIME HEATING WILL CAUSE COASTAL TROUGH TO BREAK DOWN AND A RATHER LIGHT NORTHEAST FLOW WILL DEVELOP AND SPREAD INLAND. A COASTAL TROUGH WILL DEVELOP LATE. AFTER EARLY MORNING COASTAL TROUGH WITH LIGHT WINDS NEAR SHORE. HIGH PRESSURE RIDGE PUSHING OFF THE EASTERN SEABOARD WILL VEER WINDS AROUND TO THE NORTHEAST/EAST.
AN ASSOCIATED COLD FRONT ADVANCING THROUGH PORTIONS OF NERN NEB AS OF MID AFTERNOON. SHOULD HAVE MOVED THROUGH ALL OF THE AREA BY LATE EVENING WITH BUILDING HIGH PRESSURE IN ITS WAKE. A LONGER-WAVELENGTH RIDGE WILL BECOME ESTABLISHED FROM THE ROCKIES THROUGH MS VALLEY. BETWEEN A TROUGH SHIFTING OFF THE EAST COAST AND AN UPSTREAM SYSTEM MOVING FROM THE FAR ERN PACIFIC INTO THE INTERIOR WEST. 12Z MODEL GUIDANCE CONTINUES TO INDICATE THE PRESENCE OF ONE OR MULTIPLE WEAK PERTURBATIONS WHICH WILL MOVE THROUGH THE MEAN RIDGE OVER THE CNTRL U.
HIGH PRESSURE WILL SLIDE ACROSS THE AREA TONIGHT AND BOUNDARY LAYER WINDS DIMINISH. DEWPOINTS WILL REMAIN IN THE LOW TO UPPER 30S TONIGHT. AND EXPECT OVERNIGHT LOWS TO FOLLOW SUIT WITH TEMPS IN THE LOW TO MID 30S BY SUNRISE SATURDAY MORNING. HIGH PRESSURE QUICKLY RETURNS AS MID LEVEL RIDGING BUILDS ACROSS THE EASTERN CONUS.
705 PM EST FRI MAR 4 2016 A RIDGE OF HIGH PRESSURE WILL MOVE THROUGH EARLY SATURDAY.
544 PM CST FRI MAR 4 2016 WATER VAPOR THIS AFTERNOON SHOWS A STRONG MID-LEVEL TROUGH DROPPING SOUTHEASTWARD ACROSS THE DAKOTAS. DEEPENING LOW PRESSURE WAS LOCATED NORTHERN MN WITH A WARM FRONT EXTENDING SOUTHWARD ALONG THE DAKOTAS/MN BORDER. LOOK FOR THE AREA OF LOW PRESSURE TO DROP SOUTHEAST. THIS COULD PRESENT THE OPPORTUNITY FOR SOME DRIZZLE/FREEZING AS WELL AFTER THE SNOW EXITS. WILL KEEP WINTER WEATHER ADVISORY GOING FOR TAYLOR COUNTY AND KEEP AN EYE ON FREEZING DRIZZLE POTENTIAL FARTHER TO THE SOUTHWEST. LARGE RIDGE OF HIGH PRESSURE BUILDS INTO THE REGION SATURDAY FOR DECREASING STRATUS CLOUDS/INCREASING SUN BY AFTERNOON FROM WEST TO EAST.
WITH FREEZING DRIZZLE LINGERING BEHIND. THE BIG STORY FOR TONIGHT WILL CONTINUE TO BE THE SNOW AND FREEZING DRIZZLE ACROSS THE AREA. CARLTON COUNTY AND INTO PORTIONS OF NW WI DUE TO THE CURRENT SNOW COVERED AND SLIPPERY ROAD CONDITIONS AND LINGERING FREEZING DRIZZLE. THE FREEZING DRIZZLE IS EXPECTED TO LINGER INTO THE NIGHT.
900 PM MST FRI MAR 4 2016 UPPER RIDGE AXIS IS BEGINNING TO SHIFT TO EASTERN MONTANA IN RESPONSE TO AN UPPER TROF NOW APPROACHING THE WEST COAST. HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY AND STABLE CONDITIONS OVERNIGHT.
645 PM CST FRI MAR 4 2016 WILL ADD SOME FREEZING DRIZZLE IN THE EAST THROUGH 9Z. UPPER RIDGE TO BUILD OVER THE FA FOR THIS WEEKEND. THIS SHOULD HELP BOOST TEMPERATURES WITH WARMEST VALUES OVER THE WEST WITH COOLER TEMPERATURES EASTWARD. MIXING AND CONTINUED WARM ADVECTION WILL KEEP TEMPERATURES VERY MILD SATURDAY NIGHT WITH MINIMUMS A FEW DEGREES EITHER SIDE OF FREEZING.
547 PM CST FRI MAR 4 2016 OBSERVATIONS AND SPOTTERS REVEAL QUITE A BIT OF FREEZING DRIZZLE BEHIND THE MAIN AREA OF SNOW. WITH FREEZING DRIZZLE LINGERING BEHIND. THE BIG STORY FOR TONIGHT WILL CONTINUE TO BE THE SNOW AND FREEZING DRIZZLE ACROSS THE AREA. CARLTON COUNTY AND INTO PORTIONS OF NW WI DUE TO THE CURRENT SNOW COVERED AND SLIPPERY ROAD CONDITIONS AND LINGERING FREEZING DRIZZLE. THE FREEZING DRIZZLE IS EXPECTED TO LINGER INTO THE NIGHT.
HIGH PRESSURE ALOFT WILL GIVE WAY TO AN INCREASINGLY MOIST SOUTHWEST FLOW THIS WEEKEND.
841 PM EST FRI MAR 4 2016 HIGH PRESSURE WILL BUILD NORTH OF THE REGION TONIGHT.
434 PM MST FRI MAR 4 2016 THE LAST DREGS OF A PASSING WEAK TROUGH WILL EXIT TO THE EAST WITH HIGH CLOUDS GIVING WAY TO CLEARING SKIES BEFORE MIDNIGHT. A LARGE AMPLITUDE TROUGH MOVES ONSHORE BRINGING A STRONG MOISTURE TAP FUELED BY A CLOSED LOW OVER THE GULF OF ALASKA.
527 PM CST FRI MAR 4 2016 Building mid-level ridging over the western CONUS as depicted on water-vapor imagery will produce continued warming conditions into the early weekend as it pushes eastward over the Central Plains. Fire weather conditions should improve beyond today as a weak cold front will cross the region this evening. Saturday will be pleasant with slightly cooler, though still above-normal temperatures as northwesterly surface flow continues through the early weekend. Temperatures north of I-70 will hover in the low to mid 50s by the afternoon with low to mid 60s expected for areas south of the Missouri River.
AFTER THE LOW LAYER DISSIPATES FLIGHT WEATHER SHOULD BECOME VFR THROUGH THE REMAINDER OF THE PERIOD ALTHOUGH.
659 PM EST FRI MAR 4 2016 HIGH PRESSURE WILL CONTROL OUR WEATHER TONIGHT.
HIGH PRESSURE WILL BUILD INTO THE REGION FROM THE NORTHWEST TONIGHT.
HIGH PRESSURE IS BUILDING INTO NORTHEAST COLORADO BEHIND THE MORNING COLD FRONT. IT IS A BIT COOLER TODAY. WITH GUIDANCE TEMPERATURES WARMER SATURDAY.
641 PM EST FRI MAR 4 2016 HIGH PRESSURE WILL TAKE CHARGE TONIGHT.
SKIES ARE PARTLY CLOUDY WITH TEMPERATURES IN THE LOWER 70S ALONG KEYS COMMUNITIES. A SNAKE LIKE TROUGH/WEAK COLD FRONT DRAPED ACROSS SOUTH CENTRAL FLORIDA AND THE ADJACENT ATLANTIC AND GULF WATERS WILL SAG SOUTHWARD. WHILE AN EXPANSIVE AREA OF HIGH PRESSURE BRIDGES ACROSS THE FRONTAL BOUNDARY. GIVEN THE LOW LEVEL FLOW VEERING TO NORTHEAST AND INCREASING.
Lows tonight ahead of trailing cold front will be mild and leaned above model guidance which results in expected mins in the mid 30s to low 40s range.
A DIRTY RIDGE WILL SHIFT EAST ACROSS NORTH TEXAS SATURDAY. THE TERM DIRTY RIDGE REFERS TO AN UPPER LEVEL RIDGE THAT BRINGS CLOUDS INSTEAD OF THE MOSTLY CLEAR SKIES THAT ARE ASSOCIATED WITH MOST UPPER LEVEL RIDGES.
HIGH PRESSURE CONTINUES TO HOLD SWAY ACROSS THE REGION THIS AFTERNOON, WITH VERY FEW CLOUDS NOTED ON VISIBLE SATELLITE.
1039 PM EST FRI MAR 4 2016 LOW PRESSURE SOUTH OF THE REGION WILL MOVE EAST INTO THE OPEN ATLANTIC OVERNIGHT. HIGH PRESSURE WILL REMAIN ACROSS THE AREA THROUGH THIS WEEKEND. HIGH PRESSURE ACROSS THE NORTH WILL BRING A CLEAR AND VERY COLD NIGHT TONIGHT WITH LOWS NEAR 20 BELOW IN SOME OF THE NORTHERN VALLEYS. A LARGE AREA OF LOW PRESSURE PASSING WELL SOUTH OF THE AREA WILL BRING BREEZY CONDITIONS ALONG THE COAST TONIGHT INTO SATURDAY WITH MORE TRANQUIL CONDITIONS OVER THE NORTH. SATURDAY WILL BE SUNNY WITH SOME MODERATION IN TEMPERATURES AFTER A COLD START AS HIGH PRESSURE REMAINS ACROSS THE REGION.
AND STILL SEEING A NARROW BAND OF SHOWERS EXTENDING FROM THE LOWER MISSOURI RIVER VALLEY INTO THE EASTERN I90 CORRIDOR AT THIS TIME. GENERALLY LOOKING AT LOWS IN THE LOWER TO MID 20S ACROSS THE AREA. UPPER LEVEL RIDGING BUILDS INTO THE CENTRAL PLAINS. HIGHS OVER THIS AREA WILL BE IN THE LOWER 40S.
658 PM EST FRI MAR 4 2016 AVIATION AN AREA OF LOW PRESSURE OVER MINNESOTA WILL TRACK SOUTHEAST TONIGHT AND THROUGH SOUTHWEST LOWER MICHIGAN ON SATURDAY.