Aikyam-Lab/Synoptic-Bench huggingface dataset:
HIGH PRESSURE OVER THE REGION THIS MORNING WILL MOVE OFFSHORE TODAY AS A COLD FRONT APPROACHES THE MOUNTAINS FROM THE WEST. WIDESPREAD SHOWERS WILL ACCOMPANY THE AFOREMENTIONED COLD FRONT AS IT CROSSES CENTRAL NORTH CAROLINA THURSDAY MORNING. TODAY: CHILLY HIGH PRESSURE OVER CENTRAL NC WILL SHIFT OFFSHORE LATER THIS MORNING AS A COLD FRONT PROGRESSES EAST OF THE MISSISSIPPI TOWARD THE TN/OH VALLEY. A 50 KT SSW LOW-LEVEL JET (AT 1000-1500 FT AGL) IS PROGGED TO PRECEDE THE COLD FRONT AS IT PROGRESSES ACROSS CENTRAL NC IN THE 06-15Z TIME FRAME THU MORNING. A CHANCE FOR SHOWERS WILL PERSIST IN THE WAKE OF THE FRONT OR PRE-FRONTAL TROUGH FROM THE TRIANGLE NORTH AND EAST THU AFTERNOON AS THE UPPER LEVEL TROUGH PROGRESSES INTO VA AND STRONG DCVA OVERSPREADS THE REGION.
UPPER AIR ANALYSIS LAST EVENING SHOWED ZONAL FLOW OVER TEXAS WITH A TROUGH EXTENDING FROM ND TO THE FOUR CORNERS REGION. HIGH PRESSURE WAS CENTERED OVER THE GULF AND WINDS ACROSS OUR CWA WERE FROM THE SOUTHEAST. THERE WAS A COLD FRONT MOVING THROUGH THE PANHANDLE. THE UPPER LEVEL TROUGH WILL SWING THROUGH TEXAS TODAY AND BRING THE COLD FRONT DOWN FROM THE NORTH. WINDS WILL BECOME NORTHERLY BEHIND THE FRONT AS HIGH PRESSURE BUILDS IN. THE HIGH WILL MOVE QUICKLY OFF TO THE EAST.
654 AM EDT WED APR 6 2016 THE COLD PRESSURE RIDGE IN THE FORECAST AREA EARLY TODAY WILL BE OFF THE COAST THIS AFTERNOON. WARMING WILL OCCUR IN THE SOUTH FLOW ON THE BACKSIDE OF THE HIGH AND AHEAD OF AN APPROACHING COLD FRONT. THE PRESSURE RIDGE EXTENDING THROUGH THE FORECAST AREA EARLY WILL BE OFF THE COAST THIS AFTERNOON. THE MODELS SHOW THE COLD FRONT MOVING INTO THE AREA LATE. FOLLOWED THE HIGHER LOW TEMPERATURE GUIDANCE BECAUSE OF MIXING ASSOCIATED WITH THE FRONT. THE BULK OF THE SHOWERS ASSOCIATED WITH THE COLD FRONT SHOULD BE EXITING THE FORECAST AREA EARLY THURSDAY.
A COLD FRONT MOVED QUICKLY EASTWARD ACROSS THE CWA OVER THE LAST FEW HOURS. THESE FACTORS WOULD GIVE THE PINE RIDGE THE BEST CHANCE FOR A POTENTIAL WARNING. QUIET WEATHER FOR WED/THU ON THE EASTERN FRINGE OF BROAD UPPER-LEVEL RIDGING ENCOMPASSING MUCH OF THE WESTERN CONUS.
349 AM EDT WED APR 6 2016 LOW PRESSURE OVER THE UPPER MIDWEST WILL MOVE ACROSS THE CENTRAL LAKES THIS EVENING. DRAGGING A COLD FRONT ACROSS THE FORECAST AREA. THE LOW WILL DRIFT INTO QUEBEC WITH A SERIES OF TROUGHS ROTATING ACROSS THE GREAT LAKES INTO THE WEEKEND. TEMPS WILL WARM INTO THE 50S AND DEW POINTS CREEP INTO THE 40S AHEAD OF THE APPROACHING COLD FRONT. MODELS IN GOOD AGREEMENT TRACKING THE LOW ACROSS SE LOWER MICHIGAN THIS EVENING AND ACROSS LAKE HURON OVERNIGHT. DRAGGING STRONG COLD FRONT ACROSS THE FORECAST AREA. DEEP UPPER TROUGH DIGS OVER THE AREA BY THE WEEKEND.
1207 AM CDT WED APR 6 2016 LOW PRESSURE OVER THE PLAINS GRADUALLY GATHERING STRENGTH AND MOVING NORTHEAST WITH TIME THIS EVENING. OTHER THAN ELEVATED RAIN AND SNOW SHOWERS/SOME -FZRA DUE TO LIFT ALONG THE WARM FRONT EARLIER TODAY. SFC MOISTURE HAS BEEN SLOW TO RETURN OVER MOST OF THE AREA THUS FAR WITH SFC DEW POINTS SOUTHWEST OF THE REGION ONLY IN THE LOWER TO MID 40S FROM KS SOUTH TO OK THIS AFTERNOON. BY MIDNIGHT THE LOW WILL BE NEARING KDSM WITH SHIELD OF RAIN/SCT THUNDER EXTENDING ENE. TOWARD 12Z A SECONDARY COLD FRONT WILL ARRIVE OVER THE NORTHWEST. GUSTY WINDS TODAY IN ADVANCE OF THE UPPER LEVEL TROUGH. UPPER LEVEL LOW TO CROSS THE CWA WEDNESDAY.
HIGH PRESSURE ALOFT WILL BRING US A VERY WARM DAY TODAY.
332 AM EDT WED APR 6 2016 THE COLD PRESSURE RIDGE IN THE FORECAST AREA EARLY TODAY WILL BE OFF THE COAST THIS AFTERNOON. WARMING WILL OCCUR IN THE SOUTH FLOW ON THE BACKSIDE OF THE HIGH AND AHEAD OF AN APPROACHING COLD FRONT. THE PRESSURE RIDGE EXTENDING THROUGH THE FORECAST AREA EARLY WILL BE OFF THE COAST THIS AFTERNOON. THE MODELS SHOW THE COLD FRONT MOVING INTO THE AREA LATE. FOLLOWED THE HIGHER LOW TEMPERATURE GUIDANCE BECAUSE OF MIXING ASSOCIATED WITH THE FRONT. THE BULK OF THE SHOWERS ASSOCIATED WITH THE COLD FRONT SHOULD BE EXITING THE FORECAST AREA EARLY THURSDAY.
HIGH PRESSURE WILL BRING DRY AND WARMER CONDITIONS FOR THE NEXT COUPLE DAYS.
MADE SOME MINOR ADJUSTMENTS FOR STRONGER WINDS OVER THE HIGHER MOUNTAINS.
533 AM EDT WED APR 6 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION TODAY. LOW PRESSURE WILL APPROACH TONIGHT INTO THURSDAY LIFTING A WARM FRONT ACROSS THE AREA.
247 AM PDT WED APR 6 2016 Warm and dry weather will continue into Thursday, with afternoon highs near 80 degrees in the lower elevations.
335 AM PDT WED APR 6 2016 WELL ABOVE NORMAL TEMPERATURES WILL CONTINUE INTO WEDNESDAY DUE TO HIGH PRESSURE AND OFFSHORE FLOW. A COUPLE OF LOW PRESSURE SYSTEMS WILL BRING COOLER WEATHER AND A CHANCE OF RAIN TO MOST OF THE AREA FOR THE END OF THE WEEK AND THE WEEKEND. ALSO THERE IS A GRIP OF HIGH LEVEL MOISTURE MOVING UP FROM THE UPPER LOW AND THIS CIRRUS SHIELD WILL ATTENUATE THE SUNSHINE. THE UPPER LOW ALSO MOVES CLOSER TO THE COAST AND ITS LIFT ALONG WITH THE ONSHORE FLOW WILL BE ENOUGH TO CREATE A LARGE BATCH OF MARINE LAYER STRATUS THAT WILL COVER THE COASTS AND ALMOST ALL OF THE VLYS. THE UPPER LOW OPENS UP INTO A BROAD NEG TILTED TROF AND WILL SWING THROUGH THE AREA.
IS THE CLASSIC SPRING SIGNAL FOR WARMER THAN ANTICIPATED MAXES. RIDGE MOVES CLOSER WITH LIGHTER WINDS AND LOSS OF DOWNSLOPE FLOW SO MAXES AND MINIMUMS FRI NIGHT MAY BE A DEGREE OR FEW COOLER. BREEZY NORTHWEST WINDS WILL PREVAIL IN WAKE OF THE COLD FRONT.
A HIGH AMPLITUDE RIDGE OF HIGH PRESSURE WILL BUILD IN BRINGING A RETURN TO SUNNY SKIES AND WARM TEMPS EXCEPT FOR THE PARK AND GORE RANGES THAT MAY SEE SOME CLOUDS HANG ON THROUGH NOON. THE RIDGE AXIS GETS CLOSER CAUSING A BUMP IN TEMPS AS THE SUNSHINE CONTINUES. AN AREA OF LOW PRESSURE WILL BE APPROACHING THE SAN DIEGO AREA THURSDAY AND DUE TO ITS TRAJECTORY OVER THE PACIFIC OCEAN. THE LOW WILL ENTRAIN PLENTY OF MOISTURE. ONCE THE LOW HITS THE MAINLAND IT WILL LOSE ITS CHARACTERISTICS JUST LEAVING THE MOISTURE TO CONTINUE MOVING NEWRD.
A COASTAL THERMAL TROUGH WILL MOVE INLAND ON THURSDAY AND RESULT IN A RETURN OF COOLER ONSHORE FLOW AT THE COAST WHILE TEMPERATURES PEAK INLAND.
TODAY THROUGH THURSDAY NIGHT INCREASING CLOUD COVER AND SRLY FLOW HAVE KEPT TEMPS WARMER OVERNIGHT THAN IN PREVIOUS NIGHTS. WITH SCATTERED SHRA ONGOING OVER NERN OK INTO SWRN MO ALONG A COLD FRONT. THIS COLD FRONT WILL MOVE SE THROUGH THE STATE THIS WED.
ACROSS THE LOWER ELEVATIONS. DEWPOINTS ARE COMING UP BEHIND THE COLD FRONT.
432 AM EDT WED APR 6 2016 APPROACHING LOW PRESSURE SYSTEM FROM THE WEST WILL HELP TO DEVELOP STRONG SOUTHERLY WINDS LATER TODAY AND TONIGHT.
Moisture and lift will continue along and just north of this boundary as an upper low moves very slowly east across northern Mexico and southern Texas. An upper level trough will cross the west central high plains late week as the upper low, located in south Texas mid week, begins to lift north northeast.
WEAK PACIFIC TROUGH WILL STILL PRODUCE LIGHT RAIN AND SNOW SHOWERS THIS MORNING IN IDAHO.
UPPER RIDGE AXIS LOCATED ALONG THE SPINE OF THE APPALACHIANS THIS MORNING. ACROSS THE LOWER AND MID MS VALLEYS.
NO RAINFALL IS EXPECTED TODAY OR FOR THE NEXT FEW DAYS FOR THAT MATTER AS STRONG HIGH PRESSURE WILL BUILD OVER THE AREA. TEMPERATURES WILL CLIMB INTO THE UPPER 70S ALONG THE COAST WITH MOST AREAS GETTING INTO THE LOW 80S THIS AFTERNOON.
AS AN UPPER LOW MOVES SLOWLY ACROSS NORTHERN MEXICO.
HIGH PRESSURE AND MOSTLY CLEAR SKIES WILL REMAIN THROUGH THE DAY WITH TEMPERATURES SEVERAL DEGREES ABOVE NORMAL FOR THIS TIME OF YEAR. CHATTANOOGA AIRPORT, TN 74 52 76 56 / 0 0 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 71 48 75 53 / 0 0 0 10 OAK RIDGE, TN 72 49 75 52 / 0 0 0 10 TRI CITIES AIRPORT, TN 71 42 75 46 / 0 0 0 0.
755 AM EST TUE MAR 8 2016 HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY WEATHER AND MUCH ABOVE NORMAL TEMPERATURES THROUGH AT LEAST THE MIDDLE OF THE WEEK.
UPPER RIDGING WILL BEGIN TO BUILD IN FROM THE SOUTHWEST TODAY FOR DRY WEATHER WITH SEASONABLE TEMPERATURES. A PLUME OF AROUND 1" PWAT IS EXPECTED TO RIDE UP THE WEST SIDE OF THE RIDGE AXIS AND MOVE OVER THE SF BAY AREA TUESDAY NIGHT.
AND WEDNESDAY A WARM FRONT WILL WORK NORTH ACROSS THE AREA THIS MORNING. SURFACE DEWPOINTS EXPECTED TO CLIMB INTO THE LOWER TO MID 50S ACROSS MUCH OF THE AREA. A WARM FRONT WITH ISOLATED SHOWERS IS NOTED WITH A WIND SHIFT FROM MINNESOTA TO NORTHERN WISCONSIN. TOTALS IN THE LOWER TO MID 50S MAINLY THIS MORNING ABOVE AN INVERSION SO ELEVATED CONVECTION ANTICIPATED. FOCUS OF CONVECTION TONIGHT INTO WEDNESDAY WILL THEN BE ALONG OR NEAR A COLD FRONT WHICH IS PROGGED TO SLIDE OVER THE REGION TONIGHT. MID LEVEL HEIGHTS INCREASE IN THE WAKE OF THE SHORT WAVE TROUGH SO WILL KEEP POPS MINIMAL.
SOME MARINE SPRINKLES ON PBI RADAR OFFSHORE SOUTH FL SHOULD REMAIN CONFINED SOUTH OF THE TREASURE COAST TODAY AS THEY WOULD HAVE TO ENCOUNTER A VERY STRONG RIDGE TO THEIR NORTH FOR ANY FURTHER PROGRESS TWD THE LCL AREA.
The highest rainfall totals are still focused on the southeastern half of the area, with 4 to 7 inches possible. There continue to be minor fluctuations with where the heaviest band of rain sets up, but recent trends have definitely honed in on south central Missouri for the highest totals. This rainfall will occur over a period several days, beginning today and persisting in periodic fashion into this weekend as the main upper level low finally lifts through the area. As alluded to above, the main upper low will (finally) exit to the northeast late this weekend. but will keep it on the low end of MVFR.
THIS IS THE RESULT OF A WEAKENING COLD FRONT AS IT MOVES INTO AND THROUGH THE REGION EXITING OVERNIGHT. THIS WILL BE FOLLOWED BY A WARM FRONTAL SYSTEM WEDNESDAY. THE WARM FRONT WILL ARRIVE INTO CENTRAL OREGON WEDNESDAY MORNING AND THEN SLOWLY LIFT NORTH INTO WASHINGTON WEDNESDAY NIGHT. WILL SEE INCREASING SOUTHERLY WINDS ASSOCIATED WITH THE WARM FRONT LATE WEDNESDAY AND WEDNESDAY NIGHT.
/issued 348 AM CST TUE MAR 8 2016/ Current radar shows plenty of convection across the area this morning courtesy of a large upper level low approaching from the west. Precipitation will increase tonight into tomorrow as the low interacts with a cold front moving south into the Permian Basin. Cooler temperatures will behind the front will stabilize the boundary layer further diminishing the chances for severe weather so hopefully we will see just some much needed rainfall.
AS THE UPPER LEVEL LOW OVER SONORA STATE OF NORTHWESTERN MEXICO DRIFTS TO THE EAST ANOTHER SPEED MAX ROTATES AROUND IT INTO TEXAS TONIGHT. STORMS MAY LINGER NEAR THE HIGHWAY 77 CORRIDOR AREA WEDNESDAY MORNING.
930 AM EST TUE MAR 8 2016 HIGH PRESSURE ALONG THE CAROLINA COAST WILL STAY ANCHORED IN PLACE THROUGH THE END OF THE WEEK.
605 AM EST TUE MAR 8 2016 HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY WEATHER AND MUCH ABOVE NORMAL TEMPERATURES THROUGH AT LEAST THE MIDDLE OF THE WEEK.
EXPECT THE LOW LEVEL MOISTURE TRANSPORT TO CONTINUE OVER MOST OF SOUTHERN KS FOR THE DAYTIME HOURS AS ANOTHER WEAK IMPULSE MOVES NORTHEAST OUT OF THE SRN PLAINS AND THEN ACROSS THE ERN HALF OF KS. BOTH THE GFS AND ECMWF ARE SIMILAR IN PUSHING THE STATIONARY FRONT BACK TO THE SOUTHEAST ON THU AS A COLD FRONT. THE UNCERTAINTY COMES ON HOW THE MEDIUM RANGE MODELS HANDLE THE SOUTHERN STREAM CLOSED LOW EXPECTED TO BE LOCATED OVER SRN TX. THE GFS HAS BEEN CONSISTENT IN LIFTING THIS LOW STRAIGHT NORTH OVER ERN KS FOR LATE THU THRU FRI. NOW SHEARING THIS UPPER LOW STRAIGHT EAST INTO THE GULF COAST STATES. AS A SLOW MOVING COLD FRONT SLIDES SOUTHWARD ACROSS THE REGION INTO TONIGHT.
942 AM CST TUE MAR 8 2016 THE MAIN PRECIP SHIELD WITH THE UPPER LOW REMAINS TO OUR SOUTHWEST. BUT SOME SCATTERED SHOWERS HAVE STARTED TO DEVELOP OVER THE EASTERN CWA BORDER AND SOME ISOLATED CELLS HAVE STARTED GOING UP OVER GRIGGS/STEELE COUNTIES JUST BEHIND THE SFC COLD FRONT. ADJUSTED POPS TO JUST INCLUDE SOME SCATTERED SHOWER/ISOLATED THUNDER MENTION FOR THE NEXT FEW HOURS BEFORE THE MAIN UPPER LOW COMES OUT BY MID DAY. COLD AIR CONTINUES TO FILTER IN ON THE BACKSIDE OF THE LOW OVER OUR NORTHWESTERN COUNTIES. NORTHWEST WINDS COULD GET A LITTLE GUSTY THIS AFTERNOON BEHIND THE LOW. ANY GUSTY WINDS WILL DIE DOWN QUICKLY TONIGHT AS HIGH PRESSURE BUILDS IN BEHIND THE DEPARTING LOW. SO IT WILL REMAIN ON THE COOLER SIDE. FOR MOST OF THIS TIME WINDS ALSO LOOK TO STAY ON THE LOWER SIDE.
713 AM EST TUE MAR 8 2016 HIGH PRESSURE ALONG THE CAROLINA COAST WILL STAY ANCHORED IN PLACE THROUGH THE REST OF THIS WEEK.
402 AM CST TUE MAR 8 2016 UPPER RIDGE AXIS LOCATED ALONG THE SPINE OF THE APPALACHIANS THIS MORNING. ACROSS THE LOWER AND MID MS VALLEYS.
With strong high pressure parked over the Western Atlantic, moderate south to southeast winds will continue today.
NEARER TO THE UPPER LOW. A COLD FRONT HAS SWEPT THROUGH THE FORECAST AREA. TEMPERATURES WILL BE COOLER TODAY WITH H85 TEMPS RECOVERING TO 8C BY LATE AFTERNOON IN SWRN NEBR TO AROUND 2C IN THE NORTHEAST. HIGHS KEPT VERY NEAR PREVIOUS FORECAST IN THE LOW TO MID 50S NCTRL TO THE UPPER 50S SOUTH. A CLOSED UPPER LOW WILL MOVE ACROSS NCTRL MEXICO AS SHOWERS AND THUNDERSTORMS DEVELOP IN EARNEST ACROSS THE SOUTHERN PLAINS INTO THE MISSISSIPPI VALLEY. A NORTHERN STREAM TROUGH WILL ADVANCE ACROSS MONTANA INTO CNTRL WY AND WRN CO. SKIES ACROSS WRN NEBR WILL RANGE FROM CLEAR TO PARTLY CLOUDY WITH WEAK HIGH PRESSURE. LOWS TONIGHT WILL BE COLDER THAN THE PAST FEW NIGHTS RANGING FROM THE MID TO UPPER 20S WRN SANDHILLS TO THE LOWER 30S FAR SERN ZONES.
918 AM EST TUE MAR 8 2016 ATLANTIC HIGH PRESSURE WILL EXTEND ACROSS THE AREA THIS WEEK WITH TEMPERATURES WELL ABOVE NORMAL. CHARACTERIZED BY AN INTENSIFYING DEEP LAYERED RIDGE ACROSS THE EASTERN U. WITH A POWERFUL UPPER LOW QUICKLY CUTTING OFF FROM THE MAIN BELT OF THE WESTERLIES JUST SOUTH OF THE FOUR CORNERS REGION. THE BUILDING UPPER RIDGE OVER THE AREA WILL PROMOTE ANOTHER DRY AND WARM DAY WITH TEMPERATURES RANGING FROM NEAR 80 ACROSS PARTS OF INTERIOR SOUTHEAST GEORGIA TO THE UPPER 50S/LOWER 60S ALONG THE BEACHES. ATLANTIC HIGH PRESSURE WILL MAINTAIN A LOW LEVEL ONSHORE FLOW. IT SHOULD BE A RATHER MILD NIGHT WITH LOWS IN THE LOWER 50S INLAND FROM THE WARMER COASTAL COMMUNITIES.
IT WILL BE A COOLER DAY TODAY THAN YESTERDAY. WEDNESDAY WILL BE DRY WITH WEAK HIGH PRESSURE PREVAILING ACROSS THE REGION.
540 AM CST TUE MAR 8 2016 WATER VAPOR SATELLITE DATA CONFIRMS A LARGE CUTOFF UPPER LOW CURRENTLY CENTERED NEAR THE NORTHERN TIP OF THE BAJA PENINSULA THIS MORNING. WHILE A DOWNSTREAM RIDGE -- CURRENTLY EXTENDING FROM THE FLORIDA PENINSULA NORTH-NORTHWESTWARD INTO EAST TENNESSEE -- AMPLIFIES AND MIGRATES EASTWARD ACROSS THE SOUTHEASTERN ATLANTIC COAST.
THE FOCUS WILL SHIFT TO THE AREA OVER AND EAST OF THE CENTRAL MOUNTAINS AS A COLD FRONT MOVES THROUGH THE EASTERN PLAINS. AN UPPER LEVEL LOW PRESSURE SYSTEM PASSING SOUTH OF NEW MEXICO WILL DRAW A MOIST BACK DOOR COLD FRONT THROUGH THE AREA TODAY.
THE CUTOFF UPPER LOW CURRENTLY OVER THE GULF OF CALIFORNIA WILL TRACK ACROSS NORTHERN MEXICO DURING THE DAY TODAY. LOWS SHOULD BE MAINLY IN THE 60S OVERNIGHT WITH HIGHS ON WEDNESDAY 5-10 DEGREES COOLER.
921 AM EST TUE MAR 8 2016 HIGH PRESSURE CENTER REMAINS JUST EAST OF JACKSONVILLE OVER THE WRN ATLC PROVIDING A MILD SOUTHEASTERLY FLOW ACROSS THE REGION. THIS ALONG WITH HIGH PRESSURE RIDGE ALOFT OVER THE FLORIDA PENINSULA WILL KEEP DRY CONDS IN PLACE.
641 AM EST TUE MAR 8 2016 HIGH PRESSURE OVER THE CAROLINAS WILL MAINTAIN A RIDGE ACROSS THE LOCAL AREA THROUGH MID WEEK.
/ISSUED 514 AM CST TUE MAR 8 2016/ STAGE IS BEING SET FOR PROLONGED HEAVY RAIN EVENT AS DEEP UPPER LOW OVER SOUTH CA DIGS SE INTO NORTHERN MEXICO. BEFORE STILL DIGGING UPPER TROUGH BRINGS TOTAL SATURATION.
NORTHWEST WINDS COULD GET A LITTLE GUSTY THIS AFTERNOON BEHIND THE LOW. ANY GUSTY WINDS WILL DIE DOWN QUICKLY TONIGHT AS HIGH PRESSURE BUILDS IN BEHIND THE DEPARTING LOW. SO IT WILL REMAIN ON THE COOLER SIDE. FOR MOST OF THIS TIME WINDS ALSO LOOK TO STAY ON THE LOWER SIDE.
646 AM EST TUE MAR 8 2016 DRY WEATHER WILL PERSIST TODAY IN THE CIRCULATION AROUND HIGH PRESSURE CENTERED TO THE SOUTHEAST.
823 AM MST TUE MAR 8 2016 ANTICIPATE SOME ISOLATED SHOWERS OR SPRINKLES ACROSS THE HIGHER TERRAIN EAST OF PHOENIX TODAY. TEMPERATURES THERE WILL ALSO BE MUCH WARMER.
1023 AM EST TUE MAR 8 2016 HIGH PRESSURE THROUGH WEDNESDAY WITH A SIGNIFICANT WARMING TREND. LOW PRESSURE WITH RAIN BY LATE WEEK. CONTINUED BUILDING OF THE ANOMALOUS WARM UPPER RIDGE OVER THE EASTERN U. WILL COMBINE TO BRING A WARMER AND DRY TUESDAY. AS THE UPPER RIDGE BUILDS.
COOLER AIR AND CLOUD COVER SUPPORTS TEMPERATURES STRUGGLING TO MOVE VERY MUCH TODAY. WE WILL SEE THE SLOW PASSAGE OF A LONGWAVE TROF WEDNESDAY NIGHT.
An upper level low will be located across northern Mexico this evening and slowly advance east.
The deeper closed off mid level low pressure over the Baja will gradually track eastward. Even the low level shear does not appear to be very supportive of any wind threat. Drier air in the lower levels should also prevent any storm development behind the front. Models continue to exhibit spread in solutions with regards to the upper low and how it affects the region through the period.
1035 AM EST TUE MAR 8 2016 DRY WEATHER WILL PERSIST TODAY IN THE CIRCULATION AROUND HIGH PRESSURE CENTERED TO THE SOUTHEAST.
AND THE REGION IS BECOMING BETTER PLACED WITHIN A LARGE-SCALE UPPER DIFLUENCE ZONE AS THE LARGE POWERFUL UPPER LOW CONTINUES TO TAKE SHAPE OVER NORTHWEST MEXICO. FOR TONIGHT LOWER LEVELS SHOULD FURTHER MOISTEN WHILE THE UPPER LOW DRIFTS A LITTLE FURTHER EAST. A SURFACE COLD FRONT WILL BE GRADUALLY TAKING BETTER SHAPE ACROSS THE SOUTHERN PANHANDLE AND WILL BE POISED TO SAG SOUTHWARD EITHER TONIGHT OR EARLY WEDNESDAY WHICH SHOULD INCREASE RAIN OR SHOWER CHANCES AT THAT TIME. RMCQUEEN MODELS ARE STILL STRUGGLING WITH THE EVOLUTION OF THIS CLOSED LOW ALREADY IMPACTING THE AREA EARLY THIS MORNING.
A RELATIVELY WEAK COLD FRONT MOVES ONSHORE THIS MORNING ON THE NOSE OF A 170KT JET. AS THE COLD FRONT DISSIPATES OVER THE REGION A WARM FRONT BRINGS A BROAD SWATH THE STRATIFORM PRECIP WEDNESDAY MORNING. WINDS INCREASE IN THE COASTAL WATERS AHEAD OF THE COLD FRONT WITH BOTH THE NAM AND THE GFS SHOWING BL WINDS IN THE 50-60KT RANGE WEDNESDAY AFTERNOON.
An upper level ridge remains in place across the CWA with the axis along the Florida peninsula this morning and will slide eastward off the Florida coast by this evening. While the area will remain dry in terms of rain today, the low level southeasterly flow will continue to bring increased moisture at the low levels.
AN AIRMASS BROUGHT INTO SOUTHEAST MT FROM A WEAK CANADIAN COLD FRONT. RECENT OBSERVATION AT BEACH SUGGESTS SOME DRIZZLE AND FOG MAY ACCOMPANY THIS LOW CLOUD NEAR THE DAKOTAS BORDER. BUT W/ TEMPS A BIT ABOVE FREEZING. EXPECT THIS LOW LEVEL MOISTURE TO MIX OUT FAIRLY QUICKLY THIS MORNING AS HIGH RES MODELS HAVE BEEN SHOWING CONSISTENTLY. THIS ENERGY WILL TRACK EAST AND REACH OUR WESTERN AREAS AT A DIURNALLY FAVORABLE TIME FOR SHOWERS TO DEVELOP ALONG A COLD FRONTAL PASSAGE. THOUGH A BIT COOLER IN THE WEST AND WARMER IN THE EAST. WINDS WILL BEGIN TO INCREASE IN THE GAP AREAS WEDNESDAY NIGHT IN RESPONSE TO TIGHTENING GRADIENTS ASSOCIATED WITH LEE SIDE TROF IN CENTRAL MT.
ALONG WITH WEAK SFC CONVERGENCE AS A PRE FRONTAL TROUGH SWINGS ACROSS THE STATE. MEANWHILE IN THE NORTHERN STREAM A MODEST TROUGH WILL INITIALLY BE SOMEWHAT PHASED WITH THE SOUTHERN LOW AND MEANDER ACROSS THE NORTHERN ROCKIES AND HIGH PLAINS.
935 AM EST TUE MAR 8 2016 DRY WEATHER WILL PERSIST TODAY IN THE CIRCULATION AROUND HIGH PRESSURE CENTERED TO THE SOUTHEAST.
702 AM EST TUE MAR 8 2016 HIGH PRESSURE ALONG THE CAROLINA COAST WILL STAY ANCHORED IN PLACE THROUGH THE REST OF THIS WEEK.
WITH HIGH PRESSURE DOMINATING AT THE SURFACE AND ALOFT.
SKIES ARE MAINLY CLEAR W/ TEMPS RANGING IN MID 30S TO THE LOWER 40S WITH A GENERAL WNW FLOW. A MORE POTENT CUTOFF UPPER LOW MOVES ACROSS THE SOUTHERN TX REGION.
514 AM CST TUE MAR 8 2016 STAGE IS BEING SET FOR PROLONGED HEAVY RAIN EVENT AS DEEP UPPER LOW OVER SOUTH CA DIGS SE INTO NORTHERN MEXICO. BEFORE STILL DIGGING UPPER TROUGH BRINGS TOTAL SATURATION.
Temperatures are running around 5-10 degrees cooler compared to 24 hours ago across NorCal and range from the upper teens and and lower 20s in the mountain valleys to the mid 30s to mid 40s elsewhere.
A CLOSED LOW OVER MEXICO WILL MOVE SLOWLY NORTHEAST AND SPREAD CLOUDS AND SCATTERED PRECIPITATION OVER THE SOUTHERN SECTIONS OF THE FORECAST AREA TODAY. MAINLY OVER THE HIGHER TERRAIN ABOVE 9000 FEET.
SHORT TERM: (Through Late This Afternoon) Low pressure over South Dakota will move northeast today, pushing a weak cold front down into extreme northwest Missouri. Max temp forecast actually looks pretty close to the generally warmer MAV numbers across the area.
A CLOSED UPPER LOW WILL ROTATE SLOWLY EASTWARD ACROSS NORTHERN MEXICO WHILE A MID LEVEL RIDGE AXIS AMPLIFIES EAST OF THE MISSISSIPPI RIVER.
UPPER LEVEL RIDGING PERSISTS OVER THE MID SOUTH AHEAD OF A STRONG UPPER LEVEL LOW OVER NORTHWEST MEXICO.
209 AM PST TUE MAR 8 2016 Slick, icy roads along with areas of freezing fog possible early this morning. With mid to high level clouds clearing out quickly early this morning and with yesterday's precipitation, some locations may see freezing fog.
532 AM EST TUE MAR 8 2016 HIGH PRESSURE THROUGH WEDNESDAY WITH A SIGNIFICANT WARMING TREND. LOW PRESSURE WITH RAIN BY LATE WEEK. CONTINUED BUILDING OF THE ANOMALOUS WARM UPPER RIDGE OVER THE EASTERN U. WILL COMBINE TO BRING A WARMER AND DRY TUESDAY. AS THE UPPER RIDGE BUILDS.
IN THE LOW TO MID LEVELS OF THE ATMOSPHERE. A LARGE AREA OF HIGH PRESSURE WILL BE CENTERED JUST OFF THE SOUTHEAST COAST OF THE UNITED STATES THIS AFTERNOON. A RIDGE OF HIGH PRESSURE WILL AMPLIFY OVER THE FLORIDA PENINSULA TODAY.
/ISSUED 359 AM CST TUE MAR 8 2016/ COLD FRONT MOVING SOUTH AND EAST ACROSS THE PANHANDLES THIS MORNING WILL BECOMING QUASI-STATIONARY BY THIS AFTERNOON AND THIS EVENING BEFORE CONTINUING TO PUSH SOUTH AGAIN TONIGHT.
FOG TONIGHT AND A COOLER MONDAY HIGHLIGHT THE SHORT TERM FORECAST. THE CEILING AND VISIBILITY FIELDS FROM THE 12 AND 18 UTC 4KM NAM NEST AND THE 18-19 UTC HRRR ITERATIONS IN CONJUNCTION WITH SOUNDINGS FROM THE 12 UTC GLOBAL MODELS CONTINUE TO DEPICT THE LOW LEVEL MOISTURE ACROSS NEBRASKA AND THE SOUTHERN PLAINS THIS AFTERNOON PROPAGATING NORTH AND BEGINNING TO IMPACT CENTRAL AND EASTERN NORTH DAKOTA BY 07-09 UTC TONIGHT. AND WOULD NOT BE SURPRISED IF A DENSE FOG ADVISORY IS NEEDED GIVEN THE SIGNAL IN THE HIGH RESOLUTION VISIBILITY FORECASTS FOR TONIGHT INTO MONDAY MORNING. A COLD FRONT IS EXPECTED TO PROPAGATE INTO WESTERN NORTH DAKOTA THROUGH THE AFTERNOON. BY MONDAY EVENING THERE IS A LONGWAVE TROUGH ESTABLISHED OVER THE FRONT RANGE WITH A SOUTHERN STREAM LOW OVER COLORADO. THE LONGWAVE TROUGH MOVES EAST AS THE SOUTHERN LOW MOVES NORTHEASTWARD.
617 PM EST SUN NOV 15 2015 A WEAK COLD FRONT WILL CROSS THE AREA LATE TONIGHT.
519 PM CST SUN NOV 15 2015 WHAT A GORGEOUS NOVEMBER DAY WITH FULL SUN ACROSS THE AREA AND TEMPERATURES THIS AFTERNOON IN THE MIDDLE 50S TO THE LOWER 60S. THIS WAS DUE TO A STRONG MID-LEVEL RIDGE OF HIGH PRESSURE EXTENDING FROM THE OHIO RIVER VALLEY THROUGH THE DAKOTAS. THINGS CHANGE OVERNIGHT TONIGHT AS THE RIDGE OF HIGH PRESSURE MOVES OFF TO THE EAST AND A TROUGH OF LOW PRESSURE APPROACHES FROM THE PLAINS. THE MID-LEVEL TROUGH CONTINUES TO MOVE ACROSS THE REGION ON MONDAY WHILE A DEEPER LONG WAVE TROUGH DIGS INTO THE HIGH PLAINS. SHOWERS SHOULD CONTINUE TO INCREASE ACROSS THE REGION MONDAY NIGHT AS THE PLAINS MID-LEVEL TROUGH CONTINUES TO DEEPEN.
AHEAD OF IT A SHORT WAVE TROUGH CURRENTLY OVER NORTHEAST COLORADO WILL TRANSLATE THROUGH WESTERN NEBRASKA INTO THE DAKOTAS THIS EVENING.
TEMPERATURES WILL MODERATE THROUGH THE UPCOMING WEEK AS A RIDGE OF HIGH PRESSURE BUILDS BACK TO OUR REGION. COLD FRONT HAS PUSHED THROUGH THE AREA AND CONDITIONS ARE IMPROVING. KSFO BRIDGE APPROACH. CONDITIONS WILL IMPROVE ON MONDAY AS HIGH PRESSURE BUILDS OVER THE EASTERN PACIFIC.
1003 PM EST SUN NOV 15 2015 HIGH PRESSURE OVER THE SOUTHERN AND CENTRAL APPALACHIANS WILL DOMINATE OUR WEATHER THROUGH MIDWEEK.
CHATTANOOGA AIRPORT, TN 39 63 50 68 / 0 10 10 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 34 61 48 67 / 0 0 10 10 OAK RIDGE, TN 35 61 48 67 / 0 10 10 10 TRI CITIES AIRPORT, TN 30 62 40 66 / 0 0 10 10.