Aikyam-Lab/Synoptic-Bench huggingface dataset:
923 AM EST MON FEB 9 2015 A TROUGH IS MOVING ACROSS THE EASTERN GREAT LAKES HEADING FOR THE NEW ENGLAND COAST. IN THE BASE OF THE TROUGH. AND THE LARGER UPPER LOW MOVING ACROSS WESTERN TENNESSEE AND KENTUCKY. WITH THE TROUGH MOVING CLOSER TO THE KEYS AREA WILL NOT ADJUST RAIN CHANCES IN THE SHORT TERM. WINDS IN THE GRIDS WERE A BIT ON THE HIGH SIDE AND HAVE ADJUSTED ACCORDINGLY FOR OBSERVATIONS AND LOWERED THE FORECAST WINDS OVERNIGHT AND TUESDAY SLIGHTLY DUE TO LESS CYCLONIC FLOW IN THE LOWER LEVELS THAN THE PAST FEW RUNS. WHILE THE TROUGH MOVES FURTHER OUT TO SEAS.
TODAY THROUGH TUESDAY NIGHT UPPER RIDGE AXIS IS OVER THE ROCKIES. AND A LOW PRESSURE SYSTEM IS DIGGING INTO THE PACIFIC NORTHWEST. WITH HIGH PRESSURE OVER THE EASTERN DAKOTAS. THE AXIS OF THE UPPER RIDGE WILL TRANSITION EASTWARD OVER THE NORTHERN PLAINS TODAY. WHILE SOUTHEAST SURFACE WINDS INCREASE AHEAD OF THE APPROACHING TROUGH. FORECAST SOUNDINGS ARE STILL INDICATIVE OF SOME LIGHT FREEZING RAIN ACROSS NORTHERN SD OVERNIGHT. WILL HOLD OFF ON ANY POSSIBLE FREEZING RAIN ADVISORIES. MAIN UPPER TROUGH AXIS MOVES OVER THE NORTHERN PLAINS TUESDAY. A COLD FRONT WILL BEGIN PASSING THROUGH. ALTHOUGH ONCE AGAIN TEMP FORECAST WILL BE TRICKY WITH CLOUDS AND SPEED OF COLD FRONT.
545 AM CST Mon Feb 9 2015 With the cold front well to the east, high pressure ridge to the west, and northwest flow over the region; am expecting cloudy skies to continue today, with northerly winds of around 15 mph.
321 AM MST MON FEB 9 2015 NEAR RECORD WARMTH WILL CONTINUE TODAY WITH HIGH PRESSURE ALOFT OVER THE REGION.
SHOWERS WILL DECREASE IN COVERAGE OVERNIGHT AS UPPER LEVEL RIDGING BEGINS TO BUILD OVER THE WEST COAST. UPPER LEVEL RIDGING WILL BUILD OVER THE WEST COAST BEHIND THE DEPARTING LOW PRESSURE SYSTEM LEAVING NORTHWEST CALIFORNIA DRY BEGINNING TUESDAY THROUGH THE REMAINDER OF THE WEEK. GUSTY WINDS ALONG THE NORTH COAST WILL EASE INTO THE AFTERNOON AS THE POTENT LOW PRESSURE SYSTEM SHIFTS TO THE NORTHEAST.
THE PREVIOUSLY ADVERTISED TROUGH AXIS CONTINUES TO BISECT THE REGION ROUGHLY FROM BEEVILLE TO ALICE. THE SLIGHTLY INCREASED WINDS BEHIND THIS BOUNDARY SHOULD IMPROVE VISIBILITIES AS THE TROUGH SLOWLY MOVES EASTWARD EARLY THIS MORNING. A WEAK NORTHERLY FLOW WILL PERSIST TODAY AS HIGH PRESSURE BUILDS INTO TO REGION BEHIND THE BOUNDARY. THE AIRMASS SHOULD BE ONLY SLIGHTLY COOLER. WITH DAYTIME TEMPERATURES FOLLOWING SUIT BEING ONLY A FEW DEGREES COOLER THAN YESTERDAY STILL RANGING IN THE UPPER 70S TO NEAR 80 DEGREES. COOLER TEMPERATURES ARE IN STORE FOR TONIGHT WITH THE DRIER AIRMASS.
631 AM EST MON FEB 9 2015 A COLD FRONT WILL PUSH THROUGH THE REMAINDER OF THE REGION THIS MORNING. HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT INTO TUESDAY. THE HIGH WILL MOVE EAST TUESDAY NIGHT AS ANOTHER LOW PRESSURE SYSTEM AND COLD FRONT APPROACH FROM THE WEST.
WIDESPREAD LIFR/IFR CONDITIONS EXIST OVER MUCH OF SOUTHEAST TEXAS THIS MORNING IN ADVANCE OF A WEAK COLD FRONT. A WEAK COLD FRONT IS EXPECTED TO MOVE OFF SHORE BY MID-MORNING AND SCOUR OUT ANY REMAINING FOG.
AS A COLD FRONT NEARS FROM THE NW. A PRE- FRONTAL TROUGH EAST OF THE MAIN FRONT ALONG WITH WEAK LIFT/UPGLIDE WAS HELPING LIGHT SHOWERS TO FORM ACROSS THE AREA DURING THE OVERNIGHT. THINK SOME OF THE HIGHER ELEVATED TERRAIN OVER NE AL COULD RECEIVE SOME PATCHY DRIZZLE. SOME OF IT POSSIBLY FREEZING LATE. MODIFIED CANADIAN HIGH PRESSURE BUILDING IN FROM THE NW WILL BRING COOLER TEMPS TO THE AREA TODAY. THEN DRAMATICALLY COOLER WEATHER IS EXPECTED FOR THE LATTER WEEK AND BEYOND.
A PREFRONTAL TROUGH WILL MOVE THROUGH THE TERMINALS AROUND 12Z TUESDAY.
Drier and warmer conditions return Tuesday. Closed upper low along the Oregon coast will open up and lift out through the PacNW today. High pressure rebuilds Tuesday for a return of drier and milder weather.
A LOW PRESSURE MOVING NORTH JUST OFFSHORE THE OREGON COAST WILL CONTINUE SHOWERS ACROSS THE AREA THROUGH TUESDAY MORNING. THE LOW WILL PRODUCE A BRIEF PERIOD OF GUSTY WINDS FOR THE COAST TODAY. HIGH PRESSURE AND DRIER WEATHER ARE EXPECTED FOR THE REST OF THE WEEK.
HIGH PRESSURE WILL RETURN FOR THE LATTER HALF OF THE WEEK.
INCREASING RAIN CHANCES THIS AFTERNOON AND EVENING WITH A AREA OF WEAK LOW PRESSURE OVER THE GULF WILL CONTINUE TO SHIFT EASTWARD. THE MID LEVEL TROUGH AXIS MOVES QUICKLY FROM THE EASTERN GULF. ANY COOLER AIR ADVECTING IN WITH THE TROUGH FROM LATE EVENING INTO THE FIRST PART OF THE OVERNIGHT HOURS IS OFFSET BY SLIGHTLY WARMER AIR. DECREASING RAIN CHANCES OVERNIGHT AS THE LOW TRANSITS QUICKLY AWAY FROM THE AREA. AXIS OF DIGGING TROUGH ALOFT WILL SWING ACROSS THE PENINSULA BY SUNRISE.
A COLD FRONT MOVES THROUGH AROUND MIDDAY. CIGS ARE EXPECTED TO LOWER AGAIN TONIGHT TOWARD THE LOWER END OF THE MVFR RANGE WITH BOUNDARY LAYER COOLING.
A BAND OF WARM ADVECTION PRECIPITATION WILL OCCUR FROM THE LOW SOUTH- SOUTHEASTWARD AS IT MOVES INTO WRN ND TONIGHT AND REACHES DVL BASIN PRIMARILY AFTER 09Z AND THE RRV NR 12Z TUE. WITHOUT MUCH FREEZING PRECIPITATION PARTS OF SE ND MAY NOT HAVE ADVISORY LEVEL SNOWFALL.
408 AM CST MON FEB 9 2015 PREFRONTAL TROF CONTINUES TO ADVANCE ACROSS THE REGION EARLY THIS MORNING HELPING TO CLEAR SKIES AND ALLOWING FOR A SLIGHT UPTICK IN NW WINDS. WHICH HAVE AIDED IN STIRRING THE LOW LEVELS JUST ENOUGH TO FEND OFF THE DEVELOPMENT OF WIDESPREAD FOG AS TEMP/DEW POINT SPREADS REMAIN ONLY A DEGREE OR TWO AT MOST LOCATIONS. SOME PATCHY FOG IS STILL LINGERING OVER OUR SRN TIER AHEAD OF THE ADVANCING TROF BUT THIS SHOULD GRADUALLY DISSIPATE NEAR DAYBREAK OR SHORTLY THEREAFTER. THE APPROACHING THE COLD FRONT HAS ENTERED EXTREME NRN AR/NE OK AS OF 09Z AND WILL CONTINUE ON A STEADY SWRD PROGRESSION TODAY AS IT EVENTUALLY MAKES IT DOWN TO THE GULF COAST LATER THIS EVENING. THE SLIGHT DELAY IN THE ARRIVAL OF COOLER AND DRIER AIR BEHIND THE FRONT.
HOWEVER THE LOWER VISIBILITIES WILL CONTINUE TO MOVE FURTHER SOUTH AND SPREAD ACROSS THE COASTAL PLAINS. CONDITIONS ARE EXPECTED TO IMPROVE MID MORNING BECOMING VFR THROUGH THE REST OF THE TAF PERIOD AS A WEAK TROUGH BOUNDARY MOVES FURTHER EAST AND SOUTH. THE PREVIOUSLY ADVERTISED TROUGH AXIS CONTINUES TO BISECT THE REGION ROUGHLY FROM BEEVILLE TO ALICE. THE SLIGHTLY INCREASED WINDS BEHIND THIS BOUNDARY SHOULD IMPROVE VISIBILITIES AS THE TROUGH SLOWLY MOVES EASTWARD EARLY THIS MORNING. A WEAK NORTHERLY FLOW WILL PERSIST TODAY AS HIGH PRESSURE BUILDS INTO TO REGION BEHIND THE BOUNDARY. THE AIRMASS SHOULD BE ONLY SLIGHTLY COOLER. WITH DAYTIME TEMPERATURES FOLLOWING SUIT BEING ONLY A FEW DEGREES COOLER THAN YESTERDAY STILL RANGING IN THE UPPER 70S TO NEAR 80 DEGREES. COOLER TEMPERATURES ARE IN STORE FOR TONIGHT WITH THE DRIER AIRMASS.
612 AM EST MON FEB 9 2015 A COLD FRONT WILL PUSH THROUGH LATER TODAY.
RAIN ASSOCIATED WITH A WARM FRONT OFFSHORE WILL SPREAD INLAND DURING THE OVERNIGHT HOURS. FOLLOWED BY A COLD FRONT MOVING THROUGH THE AREA WEDNESDAY EVENING.
949 PM EDT TUE MAR 10 2015 A LOW PRESSURE SYSTEM WILL MOVE FROM THE OHIO VALLEY.
1116 PM EDT TUE MAR 10 2015 WEAK LOW PRESSURE MOVING SOUTH OF KEYSTONE STATE TONIGHT WILL BRING SOME RAIN TO THE AREA INTO EARLY WEDNESDAY MORNING.
753 PM PDT Tue Mar 10 2015 A weak weather system will move through the region tonight through Wednesday bringing some light precipitation and cooler temperatures.
941 PM MDT TUE MAR 10 2015 SUNNY SKIES AND MILD TEMPERATURES CONTINUED TODAY AS A RIDGE OF HIGH PRESSURE PERSISTED OVER THE WEST COAST. THOUGH PROBABLY A BIT COOLER THAN MOS GUIDANCE GIVEN TREND FROM THE LAST TWO NIGHTS. THE WEATHER PATTERN STARTS TO SHIFT WEDNESDAY AS A PACIFIC TROUGH BEGINS TO PUSH EASTWARD THROUGH THE RIDGE CAUSING IT TO FLATTEN AND FORCING ITS AXIS EAST OF THE DIVIDE. FLOW ALOFT TURNS TO THE SOUTHWEST AND WARMER AIR IS ADVECTED ACROSS THE FORECAST AREA. THIN CIRRUS WILL SWEEP OVER THE REGION AHEAD OF THE TROUGH. CLOUDS WILL INCREASE AS A WEAKENED PACIFIC TROUGH PUSHES ACROSS THE GREAT BASIN DRIVING A COOL FRONT ACROSS THE FORECAST AREA.
THIS EVENING THROUGH WEDNESDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTH CENTRAL CANADA. A WEAK SURFACE TROF STRETCHES SOUTHWEST OF THE LOW INTO ND. UPPER LEVEL ANALYSIS SHOWS STRONG RIDGE IN PLACE OVER THE WESTERN CONUS. THE WARMEST DAY OF THE WORK WEEK FOR MOST AREAS WILL BE ON WEDNESDAY AS THE THERMAL AXIS OF RIDGE PASSES ACROSS DURING THE DAY. AS A SURFACE TROF MOVES SLOWLY ACROSS THE AREA AND PRESSURE GRADIENT TIGHTENS.
The lows tonight will still be fairly mild and slightly above normal.
LATEST MODEL RUNS HAVE BACKED UPPER LEVEL WINDS MORE SOUTHERLY OVER EAST TEXAS AND GULF AS BROAD UPPER TROUGH OVER TX / MEXICO MERGES WITH ENERGY MOVING THROUGH WESTERN STATES.
DEWPOINTS ARE IN THE LOW 50S AND THINK MIN TEMPS WILL LIKELY REACH THIS RANGE.
HIGH PRESSURE WILL MOVE OVERHEAD LATE TONIGHT WITH LIGHT WINDS. A BIT COOLER AIRMASS AND LIGHT WINDS SHOULD ALLOW TEMPS TO FALL INTO THE 20S. GFS A TAD COOLER). SIDED WITH WARMER ECMWF.
A DRY COLD FRONT WAS MOVING INTO EASTERN MINNESOTA. THE FRONT WILL SWEEP EAST OF THE REGION BY EARLY THIS EVENING WITH HIGH PRESSURE SETTLING IN FOR THE OVERNIGHT HOURS. IT WILL BE A LITTLE COOLER ON WEDNESDAY WITH HIGHS MAINLY IN THE 50S.
1148 PM CDT TUE MAR 10 2015 A WEAK FRONTAL BOUNDARY SLIDES SOUTH ACROSS THE FORECAST AREA TONIGHT INTO EARLY WEDNESDAY USHERING IN SLIGHTLY COOLER TEMPERATURES FOR WEDNESDAY BUT WELL ABOVE NORMAL.
Upper trof that moved into the forecast area on Tuesday retrogrades and weakens through the day, keeping light winds through much of the day until heating mixes winds out to southerly in the afternoon.
HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE AREA THROUGH TOMORROW AFTERNOON. GRADIENTS WILL SWITCH TO SOUTHERLY TOMORROW AS A LEE TROUGH OF LOW PRESSURE DEVELOPS OVER THE NORTHEAST COLORADO PLAINS. LEADING TO HIGH TEMPERATURES ABOUT 5 DEGREES WARMER THAN THIS AFTERNOON.
HIGH PRESSURE TONIGHT WILL GIVE WAY TO A MILD SOUTHWEST FLOW OVER THE AREA WEDNESDAY.
WARM TEMPERATURES WILL CONTINUE WITH HIGHS IN THE LOWER 80S ALONG THE VOLUSIA COAST TO 85-87 DEGS ACROSS THE INTERIOR. ATLC SUBTROPICAL RIDGE WILL MILD/WARM CONDITIONS WITH A STRONG MARINE INFLUENCE. THE ATLC RIDGE WILL BE REINFORCED BY A CONTINENTAL RIDGE THAT WILL BUILD E/SE FROM THE MIDWEST/GREAT LAKES TO THE MID ATLC COAST THRU THE LATTER HALF OF THE WEEK. A MID/UPR LVL RIDGE CENTERED NE OF THE BAHAMAS WL FURTHER LIMIT INSTABILITY. UPSTREAM HGHTS FALLS FROM LATE WEEK INTO THE WEEKEND OVER THE CENTRAL PLAINS AND TX WL WEAKEN THE RIDGE NR FL.
HIGH PRESSURE AND NEAR RECORD WARMTH WILL RETURN ONCE AGAIN THIS WEEKEND. HIGH PRESSURE AND NEAR RECORD WARM TEMPERATURES ARE EXPECTED TO RETURN THIS WEEKEND.
A NEARLY STATIONARY UPPER TROUGH WILL RETROGRADE SLIGHTLY AND CLOSE OFF OVER THE EASTERN PORTION OF THE AREA BY TOMORROW EVENING AS SOUTHEASTERN RIDGE STRENGTHENS.
THE DEEP CUT OFF UPPER LOW IS STILL DIGGING SOUTHWARD ACROSS THE RIO GRANDE INTO MEXICO. THE RICH TROPICAL PLUME IS DRAPED OVER THE ENTIRE WESTERN GULF AND THE LOWER MISSISSIPPI VALLEY WITH EXTREMELY DEEP SOUTHWEST FLOW ON OUR LATEST SOUNDING ABOVE 500 MB. NORTH WINDS IN THE LOW LEVELS WILL VEER A BIT TO NORTHEAST FOR WEDNESDAY WITH LITTLE IN THE SUNSHINE EXPECTED.
610 PM MDT TUE MAR 10 2015 SUNNY SKIES AND MILD TEMPERATURES CONTINUED TODAY AS A RIDGE OF HIGH PRESSURE PERSISTED OVER THE WEST COAST. THOUGH PROBABLY A BIT COOLER THAN MOS GUIDANCE GIVEN TREND FROM THE LAST TWO NIGHTS. THE WEATHER PATTERN STARTS TO SHIFT WEDNESDAY AS A PACIFIC TROUGH BEGINS TO PUSH EASTWARD THROUGH THE RIDGE CAUSING IT TO FLATTEN AND FORCING ITS AXIS EAST OF THE DIVIDE. FLOW ALOFT TURNS TO THE SOUTHWEST AND WARMER AIR IS ADVECTED ACROSS THE FORECAST AREA. THIN CIRRUS WILL SWEEP OVER THE REGION AHEAD OF THE TROUGH. CLOUDS WILL INCREASE AS A WEAKENED PACIFIC TROUGH PUSHES ACROSS THE GREAT BASIN DRIVING A COOL FRONT ACROSS THE FORECAST AREA.
/ISSUED 309 PM EDT TUE MAR 10 2015/ SPRAWLING MID-LEVEL HIGH PRESSURE EXTENDING FROM THE SUBTROPICAL WESTERN ATLANTIC ACROSS FLORIDA WILL REMAIN LOCKED IN PLACE THROUGH THE REST OF THE WORK WEEK AND INTO THE WEEKEND AS LARGE AND STRONG MID-LEVEL TROUGH OVER THE SOUTHERN PLAINS AND NORTHERN MEXICO REMAINS NEARLY STATIONARY. THIS WILL RESULT IN DEEP LAYERED HIGH PRESSURE INFLUENCING SOUTH FLORIDA WITH WARM AND BREEZY CONDITIONS THROUGH MOST OF THE FORECAST PERIOD.
617 PM CDT TUE MAR 10 2015 FOR 00Z TAFS /ISSUED 250 PM CDT TUE MAR 10 2015/ THE 19Z SURFACE ANALYSIS INDICATED THAT THE FORECAST AREA WAS WELL SOUTH OF THE WARM FRONT THAT WAS EXTENDING FROM WEST TO EAST ACROSS SOUTH CENTRAL KENTUCKY. A WEAK TRAILING COLD FRONT WAS MOVING SOUTHEAST THROUGH WEST TENNESSEE AND INTO NORTHWEST MISSISSIPPI. TEMPS ACROSS THE FORECAST AREA WERE IN THE LOW TO MID 60S. THE MODELS ARE IN FAIR AGREEMENT INVOLVING SLOWLY MOVING THE WEAK COLD FRONT THROUGH NORTH ALABAMA BETWEEN THE 12Z AND 18Z TIME FRAME ON WEDNESDAY.
1004 PM EDT TUE MAR 10 2015 LOW PRESSURE WILL MOVE UP THE OHIO VALLEY THIS EVENING AS ANOTHER LOW TRACKS EAST ACROSS EASTERN CANADA. THE CANADIAN LOW WILL FORCE A COLD FRONT TO DROP ACROSS THE AREA WEDNESDAY.
/ISSUED 335 PM EDT TUE MAR 10 2015/ WITH UPPER RIDGING OVER THE BAHAMAS AND A DEEP TROUGH OVER THE CENTRAL PLAINS. SOUTHWEST FLOW ALOFT FROM THE LOWER MISSISSIPPI TO THE TENNESSEE VALLEYS WILL KEEP A STREAM OF GULF MOISTURE INTO THE DEEP SOUTH WITH LITTLE VARIATION IN OVERALL PATTERN. AS IS TYPICAL GFS IS ON THE LOW SIDE WITH AROUND 200 WITH THE NAM QUITE A BIT HIGHER WITH 700-800 J/KG.
THANKS TO A WEAK RIDGE OF HIGH PRESSURE. /ISSUED 244 PM CDT TUE MAR 10 2015/ WITH A PERSISTENT UPPER LOW IN PLACE OVER THE SOUTHERN PLAINS.
This moisture has been interacting with low pressure over western Kentucky to produce widespread rain from the Deep South northward into Illinois and Indiana. Trof over the central US will weaken tomorrow, allowing brief ridging to move through the area.
1204 AM EDT WED MAR 11 2015 A LOW PRESSURE SYSTEM WILL MOVE FROM THE OHIO VALLEY.
637 PM CDT TUE MAR 10 2015 STAGNANT UPPER LEVEL TROUGH REMAINS ACROSS WEST TEXAS INTO THE SOUTHERN AND CENTRAL PLAINS. AS UPPER TROUGH OVER UPPER RED RIVER VALLEY OF TX/OK BECOMES A CLOSED LOW.
725 PM CDT TUE MAR 10 2015 TEMPERATURES SOARED TODAY AHEAD OF THE COLD FRONT THAT MOVED THROUGH. THE COOLER AIR BEHIND THE FRONT IS AT -2 TO -4C AT 850 MB COMPARED TO +4 TO +6 PREFRONTAL. WITH THE RIDGE OF HIGH PRESSURE OVER THE REGION ON WEDNESDAY THERE WILL BE NO PRECIPITATION. SFC RIDGING MOVES OFF TO THE EAST OF THE FORECAST AREA WEDNESDAY NIGHT ALLOWING FOR A WAA PATTERN TO EMERGE. RIDGING ALOFT REMAINS OVER THE EASTERN PORTION OF THE AREA.
701 PM EDT TUE MAR 10 2015 THERE HAS BEEN A SUBSTANTIAL DIMINISHING TREND IN THE LOW CLOUDS THIS EVENING. TEMPERATURES WILL REMAIN RELATIVELY MILD TONIGHT WITH LOWS IN THE LOWER TO MID 30S FOR THE MOST PART. A WEAK COLD FRONT WILL SLIDE THROUGH SOUTHEAST MICHIGAN NEAR SUNRISE WEDNESDAY. NORTHWEST WINDS OFF FROZEN SAGINAW BAY WILL LIKELY KEEP NORTHERN THUMB REGION NOTICEABLY COOLER.
ACROSS THE CWA 2 PM TEMPERATURES RANGED FROM 40 AT FREEPORT TO THE LOWER TO MID 60S IN OUR FAR SW COUNTIES. A WEAK COLD FRONT EXTENDED FROM A CLIPPER SYSTEM NEAR JAMES BAY ON ACROSS CENTRAL MN TO NEB. SKIES WILL BE CLEAR WITH WINDS BECOMING NORTHERLY AS A WEAK COLD FRONT DROPS INTO THE CWA. AND HIGH PRESSURE BUILDS INTO SOUTHERN MN. MINIMUM TEMPERATURES SHOULD RANGE FROM THE LOWER 30S NORTH TO THE MID TO UPPER 30S SOUTH. WITH A DRY AIRMASS IN PLACE AND HIGH PRESSURE OVER THE REGION. WITH A NORTHEAST WIND THIS SHOULD KEEP NW IL COOLER THAN THE REMAINDER OF THE CWA.
1012 PM EDT TUE MAR 10 2015 WEAK LOW PRESSURE MOVING SOUTH OF KEYSTONE STATE TONIGHT WILL BRING SOME RAIN TO THE AREA INTO EARLY WEDNESDAY MORNING.
UPPER RIDGE FROM THE SOUTHERN CALIFORNIA COAST STRETCHING TO THE NORTHERN ROCKIES WILL PUSH EAST TO CROSS OVER THE STATE WEDNESDAY. A COUPLE DEGREES WARMER THAN LAST NIGHTS READINGS. CONTINUED CLEAR SKIES AND LIGHT WINDS TOMORROW WILL LIKELY PRODUCE THE WARMEST MAX TEMPERATURES OF THE WEEK AS THEY PUSH A FEW DEGREES WARMER OVER TODAY'S READINGS. THE UPPER RIDGE SHIFTS INTO THE CENTRAL PLAINS STATES AS AN UPPER LEVEL TROUGH MOVES INTO THE WESTERN U.
748 PM EDT TUE MAR 10 2015 LOW PRESSURE EMERGING FROM THE SOUTHERN PLAINS WILL SPREAD RAIN OVER THE REGION TONIGHT. WARMER WEATHER WILL CONTINUE THROUGH THE WEEK.
A ridge of high pressure will continue mainly clear skies across the region tonight.
AND HIGH PRESSURE AT THE SFC. ON THU THERE WILL BE RAMP-UP OF POPS AND CLOUD COVER AS ANOTHER LOW PRESSURE SYSTEM EJECTS FROM A PERSISTENT SWRN CONUS LONGWAVE MID/UPPER TROF.
HIGH PRESSURE AND NEAR RECORD WARMTH WILL RETURN ONCE AGAIN THIS WEEKEND. HIGH PRESSURE AND NEAR RECORD WARMTH WILL RETURN ONCE AGAIN THIS WEEKEND. HIGH PRESSURE AND NEAR RECORD WARM TEMPERATURES ARE EXPECTED TO RETURN THIS WEEKEND.
SURFACE ANALYSIS THIS EVENING SHOWS THE HIGH PRESSURE RIDGE AXIS STRETCHED JUST NORTH OF TAMPA BAY HELPING THE SEA BREEZE GET A GOOD PUSH INLAND ACROSS THE NORTHERN ZONES. SOUTH OF TAMPA BAY THE SEA BREEZE COLLISION NEAR THE I 75 CORRIDOR WAS ABLE TO TAP INTO SOME MOISTURE STACKED IN THE LOWER LEVELS.
DID ADJUST OVERNIGHT LOW TEMPERATURES HIGHER DUE TO THE DEWPOINTS STILL HOLDING IN THE LOW 60S AND TO BETTER DEPICT THE FRONT SLOWLY MOVING SOUTHEAST ACROSS NW AL DURING OVERNIGHT HOURS BEFORE STALLING.
TEMPERATURES ARE IN THE 50S/60S ACROSS THE REGION WITH THE WARMER READINGS WHERE THE SKIES ARE CLEAR. THE SHORT-TERM WILL BE DOMINATED BY TROUGHING ALOFT WHICH WILL KEEP THE WEATHER PRETTY CONSISTENT WITH HIGHS TOMORROW IN THE 60S/70S AND LOWS IN THE 40S/50S TONIGHT AND TOMORROW NIGHT.
712 PM CDT TUE MAR 10 2015 850 MB TROUGH IS STILL EXPECTED TO SLIDE SOUTHEASTWARD OVERNIGHT AND ENHANCE OUR LOW LEVEL LIFT.
THERE IS A CHANCE THAT SOME LINGERING IFR STRATUS MAY REDEVELOP ALONG AND IN THE WAKE OF THIS TROUGH. TEMPERATURES WILL REMAIN RELATIVELY MILD TONIGHT WITH LOWS IN THE LOWER TO MID 30S FOR THE MOST PART. A WEAK COLD FRONT WILL SLIDE THROUGH SOUTHEAST MICHIGAN NEAR SUNRISE WEDNESDAY. NORTHWEST WINDS OFF FROZEN SAGINAW BAY WILL LIKELY KEEP NORTHERN THUMB REGION NOTICEABLY COOLER.
THE COLUMN DRIES OUT BY MORNING AS HIGH PRESSURE MOVES INTO THE REGION. BY MIDDAY THE HIGH MOVES OVERHEAD SO WINDS WILL BE LIGHT. SUNNY SKIES SHOULD BRING TEMPERATURES IN THE LOWER TO MID 50S IN SOUTH-CENTRAL WI.
A SHARP UPPER-DECK TROF THAT EXTENDS SW ACROSS KS & OK TO EXTREME SOUTHERN MEXICO IS STATIONARY CAUSING A WEAK SURFACE WEAK SURFACE TROF EXTENDING FROM SOUTHEAST NEBRASKA TO THE TX PANHANDLE TO MOVE VERY SLOWLY SE. TEMPERATURES ACROSS THE KICT COUNTY WARNING AREA RANGE FROM THE LOWER 70S ALONG AND WEST OF GENERALLY I-135 WHERE WESTERLY 10 TO 15 MPH WINDS ARE PREVALENT TO THE MID 60S IN SOUTHEAST KS. TONIGHT-THU EVENING: MOSTLY CLEAR SKIES AND TEMPERATURES ABOVE/WELL ABOVE NORMAL WILL PERSIST OVER ALL AREAS AS FAIRLY STRONG HIGH PRESSURE MOVES NE FROM TX ACROSS KS AND MO. BY WEDNESDAY AFTERNOON & EVENING THE HIGH SHOULD BE CENTERED GENERALLY OVER MO. BY WEDNESDAY AFTERNOON THE HIGH SHOULD COVER ALL OF THE EASTERN U. AS WEAK LOWER-MID LEVEL TROFFING DEVELOPS FROM THE DAKOTAS TO THE WESTERN PLAINS.
/ISSUED 710 PM EDT TUE MAR 10 2015/ WITH UPPER RIDGING OVER THE BAHAMAS AND A DEEP TROUGH OVER THE CENTRAL PLAINS. SOUTHWEST FLOW ALOFT FROM THE LOWER MISSISSIPPI TO THE TENNESSEE VALLEYS WILL KEEP A STREAM OF GULF MOISTURE INTO THE DEEP SOUTH WITH LITTLE VARIATION IN OVERALL PATTERN. AS IS TYPICAL GFS IS ON THE LOW SIDE WITH AROUND 200 WITH THE NAM QUITE A BIT HIGHER WITH 700-800 J/KG.
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS AS RIDGING AND DRIER AIR MOVES INTO THE STATE. AS AN UPPER LEVEL TROUGH GRADUALLY EXITS EASTWARD. A RIDGE OF HIGH PRESSURE WILL CROSS WEDNESDAY RESULTING IN THE WARMEST DAY OF THE WEEK. AN UPPER LEVEL LOW PRESSURE SYSTEM WILL DROP SOUTHWARD THROUGH THE STATE AND INTO NORTHWEST MEXICO DURING THE LATTER HALF OF THE WEEK. A BACK DOOR COLD FRONT WILL ALSO ARRIVE WITH COOLER TEMPERATURES.
THE LOW CLOUDS ARE CURRENTLY MIXING OUT OVER MUCH OF THE AREA SOUTH AND EAST OF GRR AND ALSO ALONG THE U. THERE IS A WEAK SFC COLD FRONT DROPPING THROUGH TONIGHT BUT THE WINDS WITH THE FRONT ARE NOT PARTICULARLY STRONG AND IT IS QUESTIONABLE HOW MUCH DRIER THE AIR WILL ADVECT IN BEHIND THE FRONT. ALSO WITH THE LOW LEVEL WINDS BECOMING WESTERLY THIS MAY PUSH THE EXTENSIVE MARINE FOG OVER LK MI INLAND.
/ISSUED 253 PM CDT Tue Mar 10 2015/ A somewhat stationary upper trough continues to linger over the region today, with the trough axis sitting over our northwestern zones this afternoon. Currently seeing some showers and isolated thunderstorms across the higher terrain regions thanks to some weak upper forcing and afternoon sfc heating. The trough axis will shift slightly to the east tonight, becoming a cutoff low Wednesday then meander over the Red River area through the remainder of the week.
A ridge of high pressure with clear skies will give way to increasing clouds on Wednesday.
WEAK LOW PRESSURE WILL SHIFT EAST EARLY THIS MORNING WITH RAIN DIMINISHING.
THE TROUGH WILL MOVE ONSHORE WEDNESDAY WITH A FEW SPOTTY SHOWERS POSSIBLE IN THE MOUNTAINS.
724 PM EDT TUE MAR 10 2015 WEAK LOW PRESSURE MOVING SOUTH OF KEYSTONE STATE TONIGHT WILL BRING SOME RAIN TO THE AREA INTO EARLY WEDNESDAY MORNING.
614 PM CDT TUE MAR 10 2015 A WEAK FRONTAL BOUNDARY SLIDES SOUTH ACROSS THE FORECAST AREA TONIGHT INTO EARLY WEDNESDAY USHERING IN SLIGHTLY COOLER TEMPERATURES FOR WEDNESDAY BUT WELL ABOVE NORMAL.
A SHALLOW BUT DISTINCT WARM THERMAL ADVECTION LAYER IN THE LOWER TROPOSPHERE WAS ANALYZED. A HIGH PRESSURE CELL WILL EXTEND FROM THE WESTERN NORTH ATLANTIC TO THE SOUTHEASTERN UNITED STATES OVERNIGHT THROUGH WEDNESDAY.
TEMPERATURES SHOULD WARM A FEW MORE DEGREES TOMORROW OUT AHEAD OF AN APPROACHING COLD FRONT.
and light winds with high pressure over the area will make for a good fog setup.
WATER VAPOR IMAGERY SHOWS ADDITIONAL DISTURBANCES ROUNDING THE CNTL CONUS TROF CURRENTLY OVER THE WRN GULF. A BIG SLOPPY MESS AS A STATIONARY UPPER TROF OVER WEST TEXAS AND AN UPPER LEVEL RIDGE ANCHORED OVER THE BAHAMAS HAS RESULTED IN A FRONTAL BOUNDARY JUST EAST OF THE TERMINALS WITH LOOSE GRADIENT AND PRECIP WATER VALUES REMAINING ABOUT TWICE NORMAL FOR THIS TIME OF YEAR. IFR TO LIFR WILL BE THE RULE UNTIL THIS PATTERN CHANGES WITH THE LIFTING OF THE TEXAS UPPER TROF. A SERIES OF UPPER LEVEL LOWS HAVE BEEN TRACKING OUT OF THE GULF AND ACROSS THE REGION WITH SHOWERS AND AREAS OF RAIN. IN ADDITION SE TX WILL BE A BIT COOLER BEHIND THE WEAK FRONT OVERNIGHT.
759 PM EDT TUE MAR 10 2015 WEAK LOW PRESSURE MOVING SOUTH OF KEYSTONE STATE TONIGHT WILL BRING SOME RAIN TO THE AREA INTO EARLY WEDNESDAY MORNING.
639 PM CDT TUE MAR 10 2015 HIGH PRESSURE WILL PUSH SOUTH FROM DAKOTAS OVERNIGHT TONIGHT. COLD ADVECTION WILL PRECEDE THE ARRIVAL HIGH PRESSURE TONIGHT AND WILL RESULT IN MORE LIMITED MIXING TO AROUND 925 MB ON WEDNESDAY. THE 925 MB TEMPERATURES WILL BE AROUND 4 C COOLER ON WEDNESDAY THAN TODAY AND WITH LIGHT SOUTHEAST WINDS ORIGINATING FROM THE HIGH. WILL LEAD TO PLEASANT YET COOLER TEMPERATURES THAN TODAY.
846 PM EDT TUE MAR 10 2015 LOW PRESSURE EMERGING FROM THE SOUTHERN PLAINS WILL SPREAD RAIN OVER THE REGION TONIGHT. WARMER WEATHER WILL CONTINUE THROUGH THE WEEK.
OTHER THAN BRIEF MVFR WEDNESDAY AFTERNOON, EXPECTING IFR TO LIFR TO PREVAIL UNTIL THE UPPER TROF OVER TEXAS LIFTS. WATER VAPOR IMAGERY SHOWS ADDITIONAL DISTURBANCES ROUNDING THE CNTL CONUS TROF CURRENTLY OVER THE WRN GULF. A BIG SLOPPY MESS AS A STATIONARY UPPER TROF OVER WEST TEXAS AND AN UPPER LEVEL RIDGE ANCHORED OVER THE BAHAMAS HAS RESULTED IN A FRONTAL BOUNDARY JUST EAST OF THE TERMINALS WITH LOOSE GRADIENT AND PRECIP WATER VALUES REMAINING ABOUT TWICE NORMAL FOR THIS TIME OF YEAR. IFR TO LIFR WILL BE THE RULE UNTIL THIS PATTERN CHANGES WITH THE LIFTING OF THE TEXAS UPPER TROF. A SERIES OF UPPER LEVEL LOWS HAVE BEEN TRACKING OUT OF THE GULF AND ACROSS THE REGION WITH SHOWERS AND AREAS OF RAIN. IN ADDITION SE TX WILL BE A BIT COOLER BEHIND THE WEAK FRONT OVERNIGHT.
SIMONS ISLAND WHERE SEA FOG CAN POTENTIALLY PRODUCE OCNL IFR WITH THE WARMER DEWPOINTS OVERRIDING THE COOLER SEA SURFACE TEMPERATURES FROM 02Z TO 15Z.
746 PM EDT TUE MAR 10 2015 HIGH PRESSURE CENTERED WELL OFF THE SOUTHEAST COAST WILL CIRCULATE WARM AND MOIST AIR INTO THE FORECAST AREA AHEAD OF A FRONTAL SYSTEM SLOWLY APPROACHING FROM THE NORTH AND WEST.
ALONG A WEAK LOW LEVEL CONVERGENCE BOUNDARY AND THETA-E RIDGE.