Aikyam-Lab/Synoptic-Bench huggingface dataset:
LOW PRESSURE WAS LOCATED OVER WEST CENTRAL ARKANSAS THIS AFTERNOON WITH A COLD FRONT EXTENDING SOUTH FROM THE LOW INTO EXTREME EASTERN TEXAS. THIS LOW WILL TRACK EAST TONIGHT AND REACH THE MISSISSIPPI RIVER BY SATURDAY MORNING. AS THE LOW MOVES EAST TONIGHT.
THE BLENDED TOTAL PRECIPITABLE WATER PRODUCT SHOWS DRIER AIR WRAPPING AROUND THE LOW THAT THE PERSISTENT SOUTHWEST MID LEVEL FLOW WILL EVENTUALLY BRING OVER OUR CWA AND HELP END THE RAIN.
THE LOW WILL CONTINUE TO WAFFLE UNTIL SATURDAY. AS A LOW PRESSURE SYSTEM MOVES ACROSS THE GREAT LAKES AND DRAGS A FRONT ACROSS THE EASTERN PART OF THE U.
WEAK COLD FRONT SET UP ACROSS ERN OK WILL BEGIN TO DRIFT SWD OVERNIGHT.
A TROUGH EXTENDS FROM THE WESTERN GREAT LAKES. INTO NORTHERN MO AND DOWN INTO LOW PRESSURE OVER WESTERN AR. HIGH PRESSURE IS CENTERED OVER WY AND EXTENDS INTO THE CENTRAL ROCKIES. FOR SAT AND SUN UPPER RIDGING IS EXPECTED TO STRENGTHEN OVER THE DESERT SOUTHWEST INTO THE HIGH PLAINS. THIS WILL ALLOW A COLD FRONT TO PUSH ACROSS THE NORTHERN PLAINS ON MON AND WILL BE GENERALLY ALONG THE KS/NEBRASKA BORDER BY MON EVENING. THERE IS GOOD AGREEMENT BETWEEN THE GFS AND ECMWF THAT A COLD FRONT WILL MOVE THROUGH MON NIGHT INTO TUE MORNING. PAST WED SOME SIGNIFICANT MODEL DIFFERENCES START TO SHOW UP WITH HOW THEY HANDLE TROUGHING OVER EASTERN CANADA. THE GFS DIGS THIS FEATURE OVER ONTARIO WHILE THE ECMWF HAS THE TROUGH MUCH FURTHER EAST.
THE LOW LEVEL RIDGE AXIS WILL REPOSITION ACROSS CENT FL WHICH WILL PRODUCE A MORE SOUTHERLY FLOW.
504 PM MDT FRI MAR 13 2015 UPPER RIDGE AXIS CURRENTLY OVER THE NORTHERN ROCKIES WILL BUILD SOUTHEASTWARD THROUGH SATURDAY. WINDS WILL BE LIGHT UNDER THE RIDGE.
WEAK COLD FRONT SET UP ACROSS ERN OK WILL BEGIN TO DRIFT SWD OVERNIGHT. /ISSUED 524 PM CDT FRI MAR 13 2015/ LATEST REGIONAL MOSAIC RADAR SHOWS THAT THE HEAVY RAIN AXIS ALONG THE WARM FRONT HAS LIFTED WELL NWD.
LT W-SW WINDS WILL PERSIST ACRS THE AREA THROUGH SATURDAY AS LOW PRES CNTRD OVER WRN ARK LIFTS SLOWLY NE LEAVING AN ELONGATED TROF AXIS ACRS THE AREA. SOME PATCHY FOG COULD ACCOMPANY THE LOW CLOUDS OVERNIGHT RESULTING IN MVFR VSBYS. SOUTHWEST FLOW AROUND THE LOW ACROSS THE AREA. A LITTLE MORE SUNSHINE IS EXPECTED ON SATURDAY AS LOW LEVEL CLOUDS ARE EXPECTED TO SCATTER OUT BY AFTERNOON WITH MORE OF A WESTERLY WIND IN THE LOW LEVELS TO BRING IN SOME DRIER AIR.
1025 PM EDT FRI MAR 13 2015 KBYX DETECTS ISOLATED SHOWERS OVER OFFSHORE GULF OF MEXICO WATERS NORTH-NORTHWEST OF THE LOWER KEYS. IN THE LOW LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL SHIFT SOUTHWARD DOWN THE FLORIDA PENINSULA OVERNIGHT. AN ANTICYCLONE WILL BE CENTERED OVER THE BAHAMAS TONIGHT. A RIDGE OF HIGH PRESSURE WILL BE LOCATED OVER THE SOUTHEAST BAHAMAS OVERNIGHT.
A LONG WAVE UPPER LEVEL RIDGE HAS MOVED OFF TO THE EAST AND THE PACIFIC NORTHWEST IS UNDER INCREASING SOUTHWEST FLOW ALOFT.
CANNOT RULE OUT SPOTTY BR WITH RIDGE AXIS SHIFTING OVER FA HOWEVER DOES NOT APPEAR WIDESPREAD ENOUGH TO WARRANT MENTION IN FORECAST. UPPER LEVEL RIDGE OVER THE ROCKIES WILL SHIFT OVER THE RED RIVER VALLEY ON SAT. UPPER LEVEL TROUGH OVER THE GULF OF AK WILL MOVE INTO NORTHERN CANADA. COOLER WEATHER WILL MOVE OUT OF CANADA SUN NIGHT/MON MORNING. COLD FRONT WILL MOVE OUT OF CANADA SUN NIGHT/MON MORNING.
1002 PM EDT FRI MAR 13 2015 LOW PRESSURE WILL MOVE IN FROM THE SOUTHWEST ON SATURDAY.
It now appears that the LOW will simply be left behind over southern MO on Saturday, spin, and shear itself out with time heading into the latter part of the weekend as the main flow aloft becomes from the northwest.
THE LOW LEVEL STRATUS FIELD CONTINUES TO ERODE ACROSS THE NORTH CENTRAL THROUGH THE JAMES RIVER VALLEY THIS AFTERNOON. THIS YIELDS HIGHS IN THE LOWER TO MID 70S ALONG AND WEST OF THE MISSOURI RIVER.
LOW PRESSURE AS LOCATED OVER HURON WI AND AN ATTENDANT COLD FRONT EXTENDED SOUTH THROUGH WESTERN WI AND INTO CENTRAL IA. BEHIND THIS COLD FRONT WAS COOLER AND DRIER AIR AND A STRONGER NW WIND. THIS LOW TO OUR NORTH WILL HELP TO KEEP THE LOW FROM THE SOUTH ADVECTING UP INTO THE AREA FOR THE REST OF TODAY AND TONIGHT. WE WILL SLIGHTLY COOLER TEMPERATURES TOMORROW. THE GFS IS AN OUTLIER WITH COOLER TEMPS. THE ECMWF WHICH SEEMS TO BE DOING MUCH BETTER WHICH WOULD MAKES US SLIGHTLY WARMER THAN FORECAST TEMPS.
/ISSUED 345 PM CDT Fri Mar 13 2015/ (Tonight and Saturday) Large upper level trough axis remains parked across the Southern Plains late this afternoon. Embedded Upper level low is drifting north into Oklahoma. Stronger northerly flow on its back side will aid the push of a cold front into West Central Texas late tonight and early Saturday. Most of the rain would be closer to the upper low itself across north Texas and southern Oklahoma, but GFS shows a little as far southwest as the Big Country and Heartland. More cloud cover tonight will keep temperatures a little warmer, with readings Saturday afternoon just a degree or two cooler than what we are looking at for today. A closed low developing over western Mexico will drop south off the west coast of Mexico overnight and Saturday.
ALTERNATING AIR MASSES WILL BRING A SOMEWHAT NOTICEABLE ROLLER COASTER RIDE BEGINNING ON SATURDAY WHEN A RATHER WEAK COLD FRONT DIPS INTO THE CNTRL PLAINS.
/ISSUED 306 PM CDT FRI MAR 13 2015/ MID/UPPER LEVEL LOW RESPONSIBLE FOR THE LOW CLOUDS AND RAIN THE PAST FEW DAYS HAS FINALLY EJECTED AWAY FROM THE AREA AND IS LOCATED OVER THE ARKLATEX REGION THIS AFTERNOON. AREA OF LOW PRESSURE IS PERSISTING OVER MEXICO AND THIS WILL KEEP SOME CLOUDS AND UNSETTLED WEATHER IN THE FORECAST FOR THE END OF THE WEEKEND INTO MID WEEK. THIS BOUNDARY WILL GENERALLY LOSE DEFINITION OVERNIGHT AND INTO SATURDAY AS ONSHORE FLOW RETURNS IN ADVANCE OF MID/UPPER LOW OVER NRN MEXICO.
LARGE LOW PRESSURE AREA CONTINUES SPINNING NEAR THE ARKLATEX REGION THIS EVENING. DRIER AIR BEGINS WORKING ITS WAY INTO WEST CENTRAL ALABAMA AFTER MIDNIGHT AS THE LOW OPENS AND SHIFTS A CHUNK OF ITS ENERGY NORTHEASTWARD.
646 PM CDT Fri Mar 13 2015 Upper low continues to move north out of the Arklatex this evening.
736 PM EDT FRI MAR 13 2015 WEDGE CONDITIONS WILL SCOUR OUT EARLY SATURDAY AS THE PARENT HIGH LIFTS NORTHEASTWARD AND A WARM FRONT ADVANCES NORTH OF THE FORECAST AREA. A COLD FRONT WILL MOVE THROUGH THE REGION SATURDAY NIGHT.
AND BECOMING NORTH/NORTHEAST AT 5 TO 10 MPH SATURDAY AS A COLD FRONT PASSES THROUGH THE REGION.
820 PM EDT FRI MAR 13 2015 A LOW PRESSURE SYSTEM MOVING THROUGH THE OHIO VALLEY WILL BRING A CHANCE OF RAIN TO AREAS ALONG AND SOUTH OF HIGHWAY 24 TONIGHT. HIGH PRESSURE WILL THEN RETURN TO THE REGION TOMORROW. LOWS TONIGHT WILL BE IN THE LOWER 40S WITH HIGHS ON SATURDAY AROUND 50 DEGREES. OVERNIGHT LOWS WILL REMAIN IN THE LOW 40S GIVEN ABUNDANT CLOUDS. UPPER TROUGH WILL BE MOVING SOUTH ACROSS THE REGION SATURDAY NIGHT.
TEMPS WILL BE A LITTLE COOLER TONIGHT THAN WHAT WE HAVE SEEN. ESPECIALLY AS THE COOLER AIR SURGES IN DURING THE EVENING AND OVERNIGHT. AFTER THE COLD FRONTAL PASSAGE TONIGHT. HIGH PRESSURE WILL SETTLE OVER IOWA ON SATURDAY.
725 PM EDT FRI MAR 13 2015 FRONT PUSHES NORTH AS A WARM FRONT TONIGHT. THEN BACK SOUTH AS COLD FRONT SATURDAY.
THE COLD FRONT IS PASSING THROUGH SRN WI THIS EVENING. THE ASSOCIATED UPPER TROUGH AND LOW PRESSURE AREA WILL TRACK ACROSS THE NRN GREAT LAKES THROUGH SAT.
UPPER LEVEL RIDGE OVER THE ROCKIES WILL SHIFT OVER THE RED RIVER VALLEY ON SAT. UPPER LEVEL TROUGH OVER THE GULF OF AK WILL MOVE INTO NORTHERN CANADA. COOLER WEATHER WILL MOVE OUT OF CANADA SUN NIGHT/MON MORNING. COLD FRONT WILL MOVE OUT OF CANADA SUN NIGHT/MON MORNING.
Fastest northward surge of moisture around the periphery of upper low will fall short of reaching the far southeast corner of the county warning area.
UPPER AIR ANALYSIS INDICATING THAT THE CANADIAN NUMERICAL MODEL IS DEPICTING THE UPPER LOW OVER SOUTHEAST OK FAIRLY ACCURATELY AT 00Z (7 PM CDT). LITTLE NORTHEASTWARD MOVEMENT IS EXPECTED, WITH THE UPPER LOW EXPECTED TO REACH THE SOUTHWEST CORNER OF MISSOURI (SOUTH OF JOPLIN) AROUND 1 AM CDT SATURDAY MORNING. HOWEVER, THE FOCUS OF LIFT SHOULD BE EVEN NARROWER, SO IMPACTED AREAS WITH THE HIGHEST RAINFALL SHOULD BE SMALLER IN AREAL COVERAGE.
543 PM MDT FRI MAR 13 2015 UPPER RIDGE AXIS CURRENTLY OVER THE NORTHERN ROCKIES WILL BUILD SOUTHEASTWARD THROUGH SATURDAY. WINDS WILL BE LIGHT UNDER THE RIDGE.
HIGHLY AMPLIFIED FLOW PATTERN WITH AN UPPER RIDGE OVER WYOMING AND AN EVOLVING UPPER LOW OVER NORTHERN MEXICO WILL REMAIN OVER THE REGION THROUGH SATURDAY. NORTH-CENTRAL AND NORTHEAST COLORADO WILL REMAIN UNDER WEAK NORTHERLY FLOW THROUGH THE NEXT 24-36 HOURS AS THE UPPER RIDGE AXIS DROPS OVER COLORADO. DRIER AND WARMER CONDITIONS WILL PREVAIL THROUGH SATURDAY AS THE UPPER RIDGE STRENGTHENS OVER THE STATE. SATURDAY AFTERNOON TEMPERATURES SHOULD BE 5-10 DEGREES WARMER THAN THIS AFTERNOON. UPPER LEVEL RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THE WEEKEND.
AS OF EARLY AFTERNOON, A COLD FRONT WAS PUSHING SOUTH, BUT IT WILL MORE OR LESS ACT LIKE AN ORDINARY WIND SHIFT AS THERE IS NO COLD AIR BEHIND THE FRONT TO SPEAK OF REALLY. WE WILL SEE SOME SLIGHTLY COOLER 850MB TEMPERATURES LATER TONIGHT INTO TOMORROW, BUT THE AIRMASS IS OF PACIFIC ORIGIN WITH DOWNSLOPE MODIFICATION.
STRONG HIGH PRESSURE OVER THE SOUTHWEST WILL BRING RECORD BREAKING HEAT THIS WEEKEND.
1012 mb low pressure deepening a bit more along the southern AR/OK border with a warm front extending ne along the Ohio river. Lows tonight to range from the lower 40s over the IL river valley where less cloud cover, to the upper 40s in southeast IL. The shorter range models are in very good agreement that a cold front will already be east and south of the state by daybreak Saturday.
CKV AND BNA SHOULD IMPROVE TO VFR AT THE END OF THE TAF PERIOD AFTER THE COLD FRONT MOVES THROUGH AND PRECIP ENDS.
952 PM EDT FRI MAR 13 2015 FRONT PUSHES NORTH AS A WARM FRONT TONIGHT. THEN BACK SOUTH AS COLD FRONT SATURDAY.
FRIES A SOUTHERN STREAM DISTURBANCE IS FORECAST TO PHASE WITH THE NORTHERN STREAM AND RESULT IN AN EASTERN CANADIAN CLOSED LOW. AND COLD FRONT PASSAGE FOR THE THE UPPER OHIO ON SATURDAY.
932 PM EDT FRI MAR 13 2015 A WARM FRONT IS WEAKENING AS IT NUDGES NORTH ACROSS SE GA.
GIVEN THE HIGH PWATS. SOME BREEZY AND PERHAPS GUSTY SOUTHEAST WINDS COULD OCCUR THIS EVENING AND OVERNIGHT ALONG THE HIGH TERRAIN AND SURROUNDING FOOTHILLS OF THE EAST TENNESSEE MOUNTAINS. AM EXPECTING THE AVERAGE SUSTAINED SPEEDS TO REMAIN SHORT OF ADVISORY CRITERIA /WITH THEVERY LOCALIZED EXCEPTION OF THE HIGHER PEAKS OF THE SMOKIES ABOVE 5000 FEET/. CHATTANOOGA AIRPORT, TN 51 68 51 69 / 100 50 30 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 50 65 46 65 / 100 60 40 0 OAK RIDGE, TN 51 65 45 65 / 100 60 50 0 TRI CITIES AIRPORT, TN 46 63 42 60 / 100 60 60 10.
630 PM CDT FRI MAR 13 2015 FOR 00Z TAFS /ISSUED 320 PM CDT FRI MAR 13 2015/ CURRENT WATER VAPOR IMAGERY SHOWS THE BROAD UPPER LEVEL LOW CURRENTLY SITUATED ACROSS THE ARKLATEX. WITH UPPER LEVEL RIDGING ACROSS THE WEST COAST AND ACROSS THE FAR SOUTHEASTERN STATES. LOW PRESSURE WAS CONTINUING TO MOVE SLOWLY ACROSS CENTRAL ARKANSAS. WITH A WEAK COLD FRONT EXTENDING SOUTHWARD THROUGH EASTERN LOUISIANA. HIGH PRESSURE SETTLING ON THE LEEWARD SIDE OF THE APPALACHIANS WAS PRODUCING EASTERLY WINDS ACROSS THE FORECAST AREA. THE AFOREMENTIONED COLD FRONT WILL APPROACH THE FORECAST AREA.
THOUGH THE PERSIST MID LEVEL TROUGH WILL BE SLOW TO CLEAR THE AREA AND LIGHT PRECIP MAY PERSIST ACROSS FAR E OK / W AR WELL INTO SATURDAY AFTERNOON.
A LOW PRESSURE SYSTEM WILL BE NEAR SOUTHERN BAJA CALIFORNIA INTO SATURDAY AFTERNOON.
1055 PM MDT FRI MAR 13 2015 UPPER RIDGE AXIS CURRENTLY OVER THE NORTHERN ROCKIES WILL BUILD SOUTHEASTWARD THROUGH SATURDAY. WINDS WILL BE LIGHT UNDER THE RIDGE.
429 AM CDT MON MAR 30 2015 ALL IS QUIET ACROSS THE KS NEIGHBORHOOD AS LARGE BUT WEAK LOWER- DECK HIGH PRESSURE COVERS THE CENTRAL AND SOUTHERN U. TODAY-TUESDAY NIGHT: A WEAK LOWER-DECK TROF SETTLING S/SE SHOULD REACH CENTRAL KS LATE THIS AFTERNOON. THIS WILL FORCE THE WEAK HIGH PRESSURE SE ACROSS THE LOWER MS VALLEY TO ENABLE SOUTHERLY FLOW TO RETURN TO THE KICT NEIGHBORHOOD.
HIGH PRESSURE RIDGE WILL SLIDE SOUTH AS A COOL FRONT MOVES INTO SOUTHEAST GA THIS AFTERNOON. AN UPPER TROUGH WILL APPROACH THE REGION FROM THE WEST TUESDAY.
A SOUTHERN STREAM MID LEVEL TROUGH WILL EJECT FROM OFF THE WEST COAST OF MEXICO AND ACROSS THE SOUTHEAST STATES LATE THIS WEEK BUT BOTH THE GFS AND ECMWF SHOW LIMITED MOISTURE RETURN WITH THE FEATURE AND THUS INDICATE MINIMAL POPS.
402 AM MDT MON MAR 30 2015 A COUPLE OF QUITE MILD/WARM DAYS WILL OCCUR OVER THE CWA TODAY THROUGH TUESDAY AS AN UPPER RIDGE APPROACHES TODAY THEN SHIFTS EAST ACROSS THE REGION ON TUESDAY. SIMILAR PATTERN FOR TUESDAY THOUGH A BIT STRONGER LEE TROUGH SHOULD EXIST OVER THE HIGH PLAINS. MAX TEMPS SHOULD BE ABOUT 4-7 DEGREES WARMER OVER THE PLAINS AS A THERMAL RIDGE MOVES ACROSS WITH 700MB TEMPS WARMING TO ABOUT 5-8C TUESDAY AFTERNOON. MID LEVEL MOISTURE SHOULD BEGIN TO STEP UP A BIT TUESDAY AFTERNOON AS THE UPPER RIDGE AXIS MOVES EAST OF THE CWA AND WSW UPPER FLOW SETS UP.
301 AM EDT MON MAR 30 2015 A COLD FRONT WILL MOVE THROUGH THE FORECAST AREA TODAY. THE PRESSURE RIDGE BEHIND THE FRONT WILL MOVE OVER THE FORECAST AREA TONIGHT. HIGH PRESSURE WILL BE CENTERED SOUTH OF THE REGION TUESDAY. THE HIGH-RESOLUTION MODELS DISPLAY SHOWERS IN THE WEST PART OF THE FORECAST AREA THIS MORNING. LEANED TOWARD THE WARMER TEMPERATURE GUIDANCE BASED ON A RELATIVELY WARM START AND EXPECTED AFTERNOON SUN WITH A WESTERLY AND SOMEWHAT DOWNSLOPE FLOW. HIGH PRESSURE BEHIND THE FRONT WILL BE CENTERED NEAR THE FORECAST AREA TONIGHT. THE TEMPERATURE GUIDANCE WAS CLOSE WITH LOWS MAINLY IN THE LOWER 40S. THE MODELS DISPLAY A PRESSURE RIDGE SOUTH OF THE FORECAST AREA TUESDAY AND TUESDAY NIGHT. THIS FEATURE SHOULD LIMIT MOISTURE AHEAD OF A COLD FRONT FORECAST TO SINK SOUTHWARD AND INTO THE AREA TUESDAY NIGHT.
AS THE HIGH PRESSURE SLOWLY SHIFTS EAST THIS MORNING, THE DRIEST AIR WILL BECOME DISPLACED BY SLIGHTLY HIGHER DEW POINT AIR ON THE RETURN FLOW SIDE OF THE SURFACE ANTICYCLONE.
DRY AND UNSEASONABLY WARM CONDITIONS WILL CONTINUE THROUGH THE TUESDAY BEFORE THE FIRST IN A SERIES OF STORMS BRINGS PERIODS OF GUSTY WINDS AND COOLER TEMPERATURES.
With good mixing in the lower atmosphere, the afternoon will be breezy, with west and south winds of 10 to 15 mph. A big change will occur during the day Tuesday when a cold front moves through the area.
THE RIDGE OF HIGH PRESSURE ALOFT RE-AMPLIFIES OVER THE ROCKY MOUNTAIN AND INTERMOUNTAIN REGIONS TONIGHT AND MONDAY. NORTHERLY SURFACE WINDS WILL CONTINUE TO DECREASE THROUGH THE REMAINDER OF THE LATE AFTERNOON TODAY AND THIS EVENING AS HIGH PRESSURE SPREADS ACROSS THE CENTRAL PLAINS. ANOTHER SURFACE LEE TROUGH IS EXPECTED TO DEEPEN ALONG THE EASTERN COLORADO BORDER AREA AS THE HIGH PRESSURE AREA CONTINUES TO MOVE FURTHER EAST OVERNIGHT AND THROUGH MONDAY MORNING.
THE BULK OF TODAY SHOULD BE RATHER PLEASANT WITH MOST AREAS SEEING PLENTY OF SUNSHINE THIS MORNING AS A WEAK HIGH PRESSURE RIDGE SLIDES OFF TO THE EAST. THERE IS STRONG WARM AIR ADVECTION AHEAD OF THE LOW WITH A RATHER TIGHT AND FAIRLY DEEP FRONTOGENETIC RESPONSE STRETCHING ACROSS THE NORTHEAST PORTION OF THE FORECAST AREA BY EARLY EVENING. SO WILL CONTINUE WITH THE HIGHER POPS THERE. AS THE LOW PULLS AWAY QUICKLY AFTER MIDNIGHT TONIGHT. WINDS WILL SHIFT NNE TUESDAY MORNING AND EAST TUE AFTERNOON IN THE WAKE OF LOW PRESSURE TRACKING THROUGH THE GREAT LAKES. THIS WILL KEEP TEMPS COOLER NEAR THE LAKE.
THERMAL RIDGE WILL BUILD INTO THE STATE BY 00Z AND EXPECT READINGS TO CLIMB INTO THE 70S FOR MOST LOCATIONS WITH 60S HOLDING ON IN THE FAR NORTHEAST PORTIONS OF THE CWA. WE START WITH TONIGHT THROUGH TUESDAY AS BEING A GENERALLY WARM AND QUIET PERIOD WITH A BUILDING RIDGE ACROSS THE ROCKIES THAT TRANSLATES INTO THE UPPER MIDWEST. HIGHS THROUGH MIDWEEK WILL BE WARM WITH READINGS IN THE LOW TO MID 70S.
HIGH PRESSURE WILL KEEP WEATHER QUIET ACROSS THE AREA TODAY.
126 AM EDT MON MAR 30 2015 A COLD FRONT WILL PASS ACROSS THE OHIO VALLEY TONIGHT. HIGH PRESSURE WILL BUILD OVER THE MISSISSIPPI VALLEY ON MONDAY AND SLOWLY MOVE TO THE EAST COAST. COLD FRONT WILL ENTER FORECAST AREA AFTER 05Z AND SWEEP THROUGH BEFORE DAYBREAK. HIGH PRESSURE BUILDS BEHIND THE FRONT AND SKIES SHOULD EXPERIENCE AT LEAST SOME CLEARING AND ALLOW FOR INSOLATION TO WARM THINGS UP DURING THE DAYLIGHT HOURS MONDAY AND TUESDAY. A TRAILING COLD FRONT IS NOTED ON THE MODELS AND A FEW ARE STARTING TO INDICATE THAT PRECIP MAY DEVELOP ALONG IT TUESDAY AFTERNOON AND EVENING. HIGH PRESSURE WILL QUICKLY BUILD NORTH OF THE REGION OVERNIGHT TUESDAY. FORECAST PERIOD BEGINS WITH A HIGH PRESSURE RIDGE CENTERED OVER THE UPPER OHIO VALLEY.
HIGH PRESSURE WILL DOMINATE THE WEATHER FOR TODAY. A COUPLE OF STORM SYSTEMS DURING THE WEEK WILL BRING MUCH COOLER AIR TO THE REGION WITH TEMPERATURES FALLING TO NEAR OR BELOW NORMAL.
SURFACE OBSERVATIONS AND RADAR DATA FROM LATE YESTERDAY EVENING REVEALED A COLD FRONT ACROSS THE EDWARDS PLATEAU.
SO ONLY A FEW SHOWERS WILL POP UP MID-AFTERNOON ACROSS THE HIGHER TERRAIN.
Highs will therefore reach the low to mid 60s, with the warmer temperatures toward the west side of the state.
300 AM MDT MON MAR 30 2015 04Z WATER VAPOR IMAGERY/RAP ANALYSIS INDICATED BROAD RIDGING ACROSS THE WESTERN CONUS WITH TROUGH MOVING ACROSS THE GREAT LAKES AREA. SHORT WAVE TROUGH NOTED ALONG NORTHERN EDGE OF RIDGE NEAR NORTHERN MONTANA BORDER. WITH SECOND TROUGH UNDERCUTTING RIDGE IN SOUTHERN NEVADA. HIGH PRESSURE WAS IN PLACE ACROSS THE AREA WITH RETURN FLOW DEVELOPING ACROSS WESTERN CWA. HUMIDITIES WILL LIKELY FALL TO THE 10 TO 20 PERCENT RANGE THROUGH THE AFTERNOON WITH HIGHER TDS COINCIDING WITH WARMER TEMPS SO LOW HUMIDITIES WILL PREVAIL.
COLD FRONT EXTENDS FROM A CLOSED LOW IN NORTH CENTRAL TEXAS TO CENTRAL OKLAHOMA WHILE ANOTHER WEAK BOUNDARY EXTENDS ACROSS THE RED RIVER OF NORTH TEXAS AND INTO SOUTHERN ARKANSAS.
WE'LL SEE HIGH PRESSURE WORK INTO AND ACROSS THE TENNESSEE VALLEY TODAY. THE HIGH SETTLES ACROSS THE SOUTHEAST U. AS A LOW PRESSURE SYSTEM RACES ACROSS THE UPPER OHIO VALLEY.
505 AM EDT MON MAR 30 2015 A COLD FRONT WILL MOVE THROUGH THE FORECAST AREA TODAY. THE PRESSURE RIDGE BEHIND THE FRONT WILL MOVE OVER THE FORECAST AREA TONIGHT. HIGH PRESSURE WILL BE CENTERED SOUTH OF THE REGION TUESDAY. THE HIGH-RESOLUTION MODELS DISPLAY SHOWERS IN THE WEST PART OF THE FORECAST AREA THIS MORNING. LEANED TOWARD THE WARMER TEMPERATURE GUIDANCE BASED ON A RELATIVELY WARM START AND EXPECTED AFTERNOON SUN WITH A WESTERLY AND SOMEWHAT DOWNSLOPE FLOW. HIGH PRESSURE BEHIND THE FRONT WILL BE CENTERED NEAR THE FORECAST AREA TONIGHT. THE TEMPERATURE GUIDANCE WAS CLOSE WITH LOWS MAINLY IN THE LOWER 40S. THE MODELS DISPLAY A PRESSURE RIDGE SOUTH OF THE FORECAST AREA TUESDAY AND TUESDAY NIGHT. THIS FEATURE SHOULD LIMIT MOISTURE AHEAD OF A COLD FRONT FORECAST TO SINK SOUTHWARD AND INTO THE AREA TUESDAY NIGHT.
300 AM EDT MON MAR 30 2015 AFTER A COLD FRONT CROSSES THE REGION THIS MORNING. LOW PRESSURE TRACKING ACROSS THE REGION TONIGHT INTO TUESDAY WILL BRING ANOTHER ROUND OF PRECIPITATION. COLD FRONT IS CURRENTLY MOVING ACROSS THE REGION THIS MORNING. DAYTIME HIGHS WILL BE SLIGHTLY WARMER THAN YESTERDAY. THE BREAK FROM PRECIPITATION WILL BE RELATIVELY SHORT LIVED AS LOW PRESSURE TRACKS RIGHT ACROSS THE FORECAST AREA TONIGHT INTO TUESDAY. RANGING FROM THE LOWER 40S IN THE NORTH WITH EXTENSIVE CLOUD COVER TO THE UPPER 50S IN THE SOUTH WHERE A LITTLE BIT OF SUN IS EXPECTED. BUT PARTIAL CLEARING IS EXPECTED AS HIGH PRESSURE MOVES INTO THE REGION.
THE NORTHLAND HAD GUSTY NW WINDS DUE TO THE EARLIER PASSAGE OF A STRONG COLD FRONT. TEMPERATURES RANGED FROM THE LOWER 30S OVER THE FAR EAST TO THE MIDDLE TO UPPER 40S OVER THE WEST. HIGH PRESSURE WILL BEGIN TO MOVE INTO THE REGION FROM THE WEST TONIGHT. A LOW PRESSURE TROUGH WILL MOVE INTO THE NORTHERN PLAINS AND MINNESOTA/WISCONSIN REGION MONDAY. THE MODELS SUGGEST THIS BAND COULD BE FOCUSED ALONG A LOW/MID LEVEL FRONTOGENETICAL BAND THAT WILL MOVE ACROSS THE NORTHLAND WITH THE TROUGH BOUNDARY. HIGH TEMPERATURES WILL BE COOLER IN THE UPPER 30S AND LOWER 40S OVER THE NE FORECAST AREA DUE TO THE CLOUD COVER AND RAIN. THE VORT MAX MOVES OFF AND HIGH PRESSURE BUILDS OVER THE AREA AND LINGERS THROUGH TUESDAY NIGHT.
400 AM EDT MON MAR 30 2015 HIGH PRESSURE TODAY AND TONIGHT. COLD FRONT TUESDAY/TUESDAY NIGHT. SWIFT MOVING COLD FRONT EXITS THE MOUNTAINS AFTER 12Z THIS MORNING IN A CLEAN SWEEPING FASHION WITHOUT LINGERING LOW LEVEL MOISTURE. BUT THE DRY AIR WILL NOT EXHIBIT THE LOW DEWPOINTS SEEN BEFORE THE CURRENT FRONT ARRIVED. LAST CLIPPER TYPE LOW PRESSURE SYSTEM AND COLD FRONT IN NORTHWEST FLOW ALOFT. THE TRACK OF THE LOW ITSELF BY ALL THE MODELS WILL BE JUST NORTH OF OUR AREA.
HIGH PRESSURE WILL MOVE IN FOR THE EARLY PARTS OF THE WEEK.
131 AM EDT MON MAR 30 2015 A COLD FRONT MOVES THROUGH OVERNIGHT. ADDITIONAL COLD FRONTS WILL MOVE THROUGH THE OHIO VALLEY FOR THE UP COMING WORK WEEK.
Weak cold front moving through the region this hour, with showers out ahead of it and east of the forecast area. High pressure behind this front will move into the Tennessee Valley by this evening.
TODAY THROUGH TUESDAY NIGHT CURRENT SURFACE MAP PLACES WEAK TROF ACROSS THE WESTERN DAKOTAS. UPPER LEVEL RIDGE BUILDS ACROSS THE NORTHERN PLAINS TODAY.
506 AM EDT MON MAR 30 2015 LOW PRESSURE WILL APPROACH FROM THE WEST TODAY AND TRACK NORTH OF THE AREA TONIGHT. A COLD FRONT WILL CROSS THE REGION EARLY TUESDAY.
LITTLE CHANGE IN FORECASTS THROUGH TONIGHT WITH TEMPS RISING TO NEAR RECORD HIGHS TODAY WITH ONLY SOME HIGH CLOUDINESS UNDER UPPER RIDGE. UPPER RIDGE WILL PASS EAST OF US TONIGHT AS A MODERATELY STRONG UPPER TROUGH COMES INLAND FROM THE PACIFIC. SURFACE COLD FRONT WILL PASS THROUGH EASTERN OREGON SHORTLY BEFORE SUNRISE. AND WESTERN IDAHO TUESDAY MORNING FOLLOWED BY GUSTY WEST WINDS AND SIGNIFICANTLY COOLER TEMPS.
357 AM CDT Mon Mar 30 2015 (Today and Tonight) Weak upper level ridging over the forecast area this morning will deamplify through tonight with a northwest flow aloft becoming pseudo-zonal by this afternoon. An upper low west of the Baja Peninsula will move east over northern Mexico by tomorrow morning with low to mid level moisture on the increase over the forecast area. Temperatures will be cooler today, generally in the lower 80s, but still above seasonal norms. Tonight will also be warmer than normal with morning lows on Tuesday in the upper 50s to around 60 degrees.
A WEAK COLD FRONT WAS NOTED ON SURFACE OBSERVATIONS ACROSS NORTH CENTRAL TEXAS AND MAY HELP PROVIDE ENOUGH CONVERGENCE FOR SOME ISOLATED SHOWERS AND STORMS.
RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION DURING THIS PERIOD.
416 AM CDT MON MAR 30 2015 A SURFACE COLD FRONT WAS RAPIDLY MOVING ACROSS NORTHERN MISSISSIPPI AT 08Z. AS THE UPPER TROUGH AND SURFACE FRONT APPROACH.
WITH THE MIDLVL RIDGE AXIS CENTERED OVER UTAH ON MON. 700MB TEMPS RISE TO AROUND 7C WITH WIDESPREAD HIGHS IN THE 70S TO THE EAST OF THE LARAMIE RANGE SO IT WILL BE ABOUT 5 DEGREES WARMER THAN MON.
429 AM EDT MON MAR 30 2015 CURRENT SURFACE ANALYSIS SHOWS A COLD FRONT STRETCHING FROM THE CENTRAL GREAT LAKES BACK THROUGH THE LOWER MISSISSIPPI RIVER VALLEY. A LOW PRESSURE WAVE HAS DEVELOPED ALONG THE BOUNDARY. THERE IS A SIGNIFICANTLY COOLER AND DRIER AIRMASS ACROSS WESTERN GA. AS THIS AREA WILL RECEIVE THE BEST HEATING AND HAVE THE HIGHEST DEWPOINTS/MOISTURE.
522 AM EDT MON MAR 30 2015 AFTER A COLD FRONT CROSSES THE REGION THIS MORNING. LOW PRESSURE TRACKING ACROSS THE REGION TONIGHT INTO TUESDAY WILL BRING ANOTHER ROUND OF PRECIPITATION. COLD FRONT IS JUST ABOUT TO EXIT THE REGION. SOME LIGHT DRIZZLE MAY CONTINUE FOR ANOTHER COUPLE OF HOURS BEHIND THE COLD FRONT ITSELF. DAYTIME HIGHS WILL BE SLIGHTLY WARMER THAN YESTERDAY. THE BREAK FROM PRECIPITATION WILL BE RELATIVELY SHORT LIVED AS LOW PRESSURE TRACKS RIGHT ACROSS THE FORECAST AREA TONIGHT INTO TUESDAY. RANGING FROM THE LOWER 40S IN THE NORTH WITH EXTENSIVE CLOUD COVER TO THE UPPER 50S IN THE SOUTH WHERE A LITTLE BIT OF SUN IS EXPECTED. BUT PARTIAL CLEARING IS EXPECTED AS HIGH PRESSURE MOVES INTO THE REGION.
SURFACE ANALYSIS HAS A HIGH PRESSURE SYSTEM IN EASTERN KANSAS EARLY THIS MORNING AND A LOW PRESSURE SYSTEM ON THE HIGH PLAINS. WINDS AHEAD OF THE TROUGH INCREASE FROM THE SOUTHWEST. THE TROUGH IS THROUGH THE AREA THIS EVENING.