Aikyam-Lab/Synoptic-Bench huggingface dataset:
301 PM EDT SAT APR 4 2015 HIGH PRESSURE WILL BUILD OVER OUR REGION TONIGHT AND EARLY SUNDAY MORNING.
CLOSED LOW AND THE DEPARTING RIDGE WILL BRING A SMALL CHANCE OF SHOWERS INTO THE WESTERN COUNTIES IN SOUTHEAST MISSOURI TOWARD SUNSET ON SUNDAY.
403 AM CDT SUN MAR 8 2015 THE UPPER LOW THAT HAS REMAINED NEARLY STATIONARY OVER NORTHERN BAJA THE PAST SEVERAL DAYS HAS BEGUN TO SHIFT EASTWARD OVER NORTHERN MEXICO AND SOUTHERN ARIZONA. AHEAD OF THIS UPPER LOW. THIS WILL ALLOW FOR THE WARMER TEMPS TODAY TO BE CONFINED TO NORTHEAST OKLAHOMA WHERE 60S SHOULD BE COMMON. CLOUD COVER AND RAIN CHANCES LOOK TO KEEP TEMPS A BIT COOLER WITH 50S BEING COMMON.
137 AM EST SUN MAR 8 2015 HIGH PRESSURE MOVES OFF THE COAST TONIGHT. A WEAK TROUGH OF LOW PRESSURE DROPS INTO THE AREA LATE SUNDAY. BEFORE HIGH PRESSURE RETURNS FOR MONDAY.
637 AM EDT SUN MAR 8 2015 A WEAK COLD FRONT WILL EXIT THE REGION EARLY THIS MORNING.
412 AM EDT SUN MAR 8 2015 HIGH PRESSURE DOMINATES.
THIS NORTHERLY SURGE WILL BE CAPABLE OF GENERATING NORTHERLY WINDS GUSTING TO AROUND 25 KNOTS AT TIMES OVER EASTERN SECTIONS FROM LATER TONIGHT INTO AT LEAST SUNDAY MORNING IN COMBINATION WITH COOLER MAXIMUM TEMPERATURES SUNDAY. WEAK UPPER LOW WILL STILL BE MEANDERING ITS WAY SOUTH OF THE BORDER MONDAY.
332 AM PDT Sun Mar 8 2015 Above normal temperatures will continue through the first part of this week under strong high pressure. A weather system will bring a chance of showers and cooler weather mid week. Fair skies continue this morning under strong high pressure.
IF THERE IS AN AREA OF THE CWA THAT STANDS A CHANCE AT SEEING LIGHT FREEZING RAIN OR SLEET OR SNOW. IT'S ALONG AND EAST OF A LINE FROM MOBRIDGE TO FAULKTON TO MILLER. DRY CONDITIONS ARE EXPECTED AS UPPER RIDGING ASSOCIATED WITH NORTHERN BRANCH JET OF SPLIT FLOW PATTERN SETS UP.
337 AM CDT Sun Mar 8 2015 (Today and Tonight) An upper level trough that is currently centered over Arizona will approach West Central Texas today and tonight. It ends up leaving a broad weak trough axis across Texas through mid week, but it looks to remain dry for West Central Texas.
401 AM EDT SUN MAR 8 2015 BENIGN ZONAL FLOW ALOFT AND AMORPHOUS RIDGING AT THE SURFACE WILL GIVE US FAIR WEATHER TODAY. MODELS AGREE ON WARM AIR ADVECTION/ISENTROPIC LIFT AHEAD OF AN APPROACHING LARGE SCALE MID/UPPER LEVEL TROUGH BRINGING INCREASING CLOUDS FOR MONDAY.
THINK THE HIGHWAY 2 CORRIDOR WILL BE ON THE EDGE AGAIN. TEMPS SHOULD BE A LITTLE WARMER ON SUNDAY BUT WILL DEPEND ON CLOUD COVER. MONDAY LOOKS EVEN BETTER FOR WARMING WITH SOUTHWEST WINDS AGAIN AND WARMER 925MB TEMPS. TUE MAY BE JUST A LITTLE COOLER THAN MONDAY BUT OVERALL VERY NICE.
1202 AM EST SUN MAR 8 2015 A WEAK COLD FRONT WILL WASH OUT OVER THE REGION LATE TONIGHT INTO SUNDAY MORNING. HIGH PRESSURE WILL BRING A PERIOD OF DRY WEATHER SUNDAY AND MONDAY.
AS A SHORT WAVE TROUGH AND ASSOCIATED COLD FRONT MOVE THROUGH COLORADO. TEMPS THIS AFTERNOON SHOULD END UP ABOUT 5-10 DEGREES COOLER THAN YESTERDFAY'S HIGHS. GENERALLY IN THE LOWER TO MID 50S OVER THE PLAINS. AS THE BULK OF THE UPPER TROUGH MOVES THROUGH FROM THE NW. THE BEST SHOT OF ANY ORGANIZED PRECIP WILL BE LATE IN THE WEAK AS BOTH THE GFS AND EC SHOW A BROAD WEAK TROUGH MOVING ACROSS THE REGION.
IT WILL BE COOLER WITH A FRONT MOVING THROUGH DENVER EARLY THIS MORNING AROUND 12Z. OTHERWISE IT WILL BE DRY WITH TEMPERATURES ABOUT 5 DEGREES COOLER THAN YESTERDAY. A WEAK UPPER LEVEL TROUGH WILL BE OVER THE SOUTHERN ROCKIES WHILE A RIDGE RESIDES OVER THE WESTERN STATES.
108 AM EST SUN MAR 8 2015 HIGH PRESSURE WILL MOVE SOUTHEAST INTO THE OHIO VALLEY TONIGHT PROVIDING FAIR WEATHER ACROSS OUR AREA. WITH SOME BACKING OF SFC FLOW/RECOVER OF THERMAL FIELD BY AFTN AND LACK OF STRATUS HAVE LARGELY DISCARDED COLD NAM MOS TEMPS IN FAVOR OF WARMER/LATEST ECE.
441 AM EDT SUN MAR 8 2015 FAIRLY BENIGN PATTERN WITH HIGH PRESSURE BUILDING TO THE NORTH.
343 AM CDT SUN MAR 8 2015 328 AM CDT THE BIG PICTURE FEATURES A WEAK HIGH PRESSURE RIDGE SCOOTING OVER THE REGION EARLY THIS MORNING. A WEAK LOW PRESSURE SYSTEM SLIDES FROM NORTHERN MN TO SOUTHEAST ONTARIO THIS EVENING. RAISED LOWS THIS MORNING SINCE TEMPS REMAIN ON THE WARMER SIDE. ALSO RAISED HIGHS TODAY BE A DEGREE OR TWO CONSIDERING YESTERDAY WAS WARMER THAN EXPECTED IN MANY LOCATIONS. HIGH PRESSURE MOVES IN THIS EVENING WITH CLOUDS CLEARING OUT. JEE 340 AM CDT BROAD HIGH PRESSURE WILL SETTLE TO THE SOUTHEAST OF THE AREA OFF TO THE ATLANTIC SEABOARD WHILE LOW PRESSURE TRACKS TOWARDS JAMES BAY. AS THE NORTHERN LOW SHIFTS EAST HIGH PRESSURE BUILDS INTO THE UPPER MIDWEST WITH A WEAK COLD FRONT MOVING DOWN PART OF OF THE LAKE.
A DRY NORTHWEST FLOW WILL CONTINUE OVER THE REGION WITH AN UPPER RIDGE AXIS CENTERED TO OUR WEST.
WATER VAPOR IMAGERY SHOWS THE LEAD BUT WEAKER SHORT WAVE TROUGH OVER COAHUILA/NUEVO LEON MOVING NORTHEAST TOWARD SOUTH TEXAS. THE MORE IMPRESSIVE SYSTEM IS THE UPPER LOW OVER NORTHWEST MEXICO THIS MORNING. THE UPPER LOW IS EXPECTED TO MOVE SOUTHEAST TO THE TEXAS BIG BEND MONDAY MORNING AND THEN EAST INTO THE HILL COUNTRY MONDAY AFTERNOON. MODELS SUGGEST A COUPLED UPPER JET STRUCTURE LATE TONIGHT INTO MONDAY MORNING THAT WILL ENHANCE LARGE SCALE LIFT AS 90 KNOT 25H JET LIFTS OUT OF SOUTHWEST TEXAS INTO OZARKS WHILE ANOTHER 90 KNOT JET STREAK ROUNDS THE BASE OF THE TROUGH AND MOVES NORTHEAST TOWARD SOUTH TEXAS WITH REGION IN THE FAVORABLE LEFT EXIT REGION.
347 AM CDT SUN MAR 8 2015 NORTHWEST MID/UPPER FLOW PREVAILED ACROSS THE CENTRAL CONUS WHILE A SLOW MOVING TROUGH WAS SITUATED OVER THE SOUTHWEST.
406 AM EDT SUN MAR 8 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TONIGHT THROUGH MONDAY.
306 AM CDT SUN MAR 8 2015 EARLY MRNG WATER VAPOR IMAGERY INDICATES A WEAK SHRTWV TROF MOVG THROUGH EASTERN SD. MODELS ARE IN GOOD AGREEMENT THAT THE WRN US RIDGE WILL DEVELOP EWD INTO THE NORTHERN PLAINS FOR MOST OF THE WORK WEEK. BUT THE GFS IS MUCH STRONGER LEADING TO COOLER TEMPERATURES.
A 1028 MB HIGH PRES RIDGE WAS LOCATED ALONG THE SE U. HIGHS WELL INTO THE 70S INLAND BUT ONSHORE FLOW FOR IMMEDIATE COASTAL AREAS WILL HELP PRODUCE COOLER HIGHS IN THE MID TO UPPER 60S THERE.
352 AM EDT SUN MAR 8 2015 WEAK HIGH PRESSURE WILL BE OVER THE REGION THROUGH MONDAY WITH A COUPLE OF TROUGHS PASSING THROUGH.
A WEAK LOW PRESSURE SYSTEM IS PUSHING THROUGH SOUTHERN ARIZONA AND NORTHWEST MEXICO THIS MORNING. ANOTHER WEAK IMPULSE DIVING DOWN THE BACK SIDE OF A WEAK TROUGH POSITION IMMEDIATELY DOWNSTREAM WILL BRING ANOTHER SLIGHT CHANCE OF THUNDERSTORMS NEAR EASTERN MOUNTAINS MONDAY AFTERNOON BEFORE WE SEE SEVERAL DEGREES OF ADDITIONAL WARMING BY MID WEEK.
314 AM MDT SUN MAR 8 2015 SATELLITE WATER VAPOR IMAGES SHOWED AN UPPER RIDGE CENTERED NEAR THE WEST COAST WHILE A CLOSED LOW SLOWLY TRACKED EAST ALONG THE AZ/MEXICO BORDER. MOISTURE WRAPPING NORTH INTO NM AHEAD OF THE UPPER LOW WAS BEING SHUNTED EAST BEFORE HAVING MUCH EFFECT ON OUR AREA. THE UPPER TROUGH EXITS TO THE SOUTHEAST MONDAY MORNING WITH INCREASING SYNOPTIC SUBSIDENCE INDICATED IN THE Q-G VERTICAL VELOCITY FIELDS MONDAY AFTERNOON BUT MAY STILL SEE A FEW LINGERING SHOWERS OVER THE SAN JUANS. SHOWERS WILL COME TO AN END MONDAY NIGHT AS HIGH PRESSURE BUILDS INTO THE REGION.
354 AM CDT SUN MAR 8 2015 MID/UPPER LEVEL BLOCKING THAT WAS SITUATED ALONG THE WEST COAST HAS WEAKENED SOMEWHAT THIS MORNING. AS THE LOW SOUTH OF THE FORMER REX BLOCK MOVES ACROSS NW MEXICO. TO THE LOWER 40S ON THE PLATEAU. THIS MORNING SHOULD BE THE LAST DAY FOR A WHILE (WEEK OR SO) THAT LOW TEMPERATURES WILL REMAIN ABOVE FREEZING.
Cirrus streaming out of the desert SW trof has begun to overspread the sthrn CWA this evng. SHORT TERM: (Through Late Tonight) Warm southwest flow has pushed temperatures into the low to mid 60s across most of the area along and west of the Mississippi today. A weak cold front will try to dip into the area tonight, but it looks like persistent low level west-southwest flow will mostly confine the front to parts of Illinois and northern Missouri. Regardless, it does look like temperatures will be a little cooler than last night's highs due to the lighter winds and better radiational cooling conditions.
435 AM CDT SUN MAR 8 2015 AN UPPER LEVEL LOW OVER NORTHWESTERN MEXICO IS BEGINNING TO SLOWLY MOVE EASTWARD. AND IS EXPECTED TO OPEN INTO A TROUGH THIS AFTERNOON. A WEAK COLD FRONT WILL CROSS THE PANHANDLES FROM THE NORTHWEST THIS AFTERNOON. AS THE UPPER LEVEL TROUGH APPROACHES TONIGHT. KEEPING JUST SLIGHT CHANCE MENTION AS THE BETTER MOISTURE SLIPS FURTHER SOUTH AND EASTWARD AHEAD OF THE BASE OF THE TROUGH. GENERALLY KEEPING A BROAD TROUGH OVER THE AREA BUT DISAGREEING ON THE DEVELOPMENT OF ANOTHER UPPER LEVEL LOW OVER NEW MEXICO/ARIZONA.
611 AM EDT SUN MAR 8 2015 WEAK LOW PRESSURE WILL SLOWLY CROSS THE REGION TODAY. ANOTHER AREA OF LOW PRESSURE WILL MOVE EAST THROUGH NORTHERN NEW ENGLAND ON MONDAY.
333 AM EDT SUN MAR 8 2015 WEAK LOW PRESSURE WILL SLOWLY CROSS THE REGION TODAY. ANOTHER AREA OF LOW PRESSURE WILL MOVE EAST THROUGH NORTHERN NEW ENGLAND ON MONDAY.
617 AM EDT SUN MAR 8 2015 THE DRY PRESSURE RIDGE EXTENDING INTO THE FORECAST AREA TODAY WILL SHIFT FARTHER OFF THE SOUTHEAST COAST MONDAY. THE DRY PRESSURE RIDGE IN THE FORECAST AREA WILL DOMINATE TODAY. THE RIDGE WILL BE FARTHER OFFSHORE TONIGHT. A DEVELOPING WARM FRONT WITH WEAK ISENTROPIC MAINLY IN THE WEST PART OF THE FORECAST AREA CLOSER TO THE DEEPER MOISTURE. EXPECT HIGHS IN THE LOWER TO MIDDLE 70S AND LOWS NEAR 50.
405 AM EDT SUN MAR 8 2015 BENIGN ZONAL FLOW ALOFT AND AMORPHOUS RIDGING AT THE SURFACE WILL GIVE US FAIR WEATHER TODAY. MODELS AGREE ON WARM AIR ADVECTION/ISENTROPIC LIFT AHEAD OF AN APPROACHING LARGE SCALE MID/UPPER LEVEL TROUGH BRINGING INCREASING CLOUDS FOR MONDAY. A STRONG UPPER LEVEL TROUGH ACROSS THE SW CONUS WILL LEAD TO PHASING OF THE SOUTHERN STREAM AND NORTHERN STREAM JET ACROSS THE OHIO RIVER VALLEY THROUGH THE EXTENDED.
1017 PM MST SAT MAR 7 2015 LATEST SURFACE ANALYSIS PLACED THE WEAK COLD FRONT FROM CENTRAL THROUGH EAST CENTRAL WY. A WEAK COLD FRONT APPROACHING FROM THE NORTHEAST LAYS GENERALLY ALONG A LINE FROM SOUTH CENTRAL NEBRASKA TO JUST NORTH OF CHADRON TO A LOW CENTERED IN SOUTH CENTRAL MONTANA. WE SHOULD SEE SLIGHTLY COOLER TEMPERATURES WITH GUSTY NORTH WINDS SUNDAY.
1247 AM EST SUN MAR 8 2015 HIGH PRESSURE DOMINATES.
COLD FRONT EXPECTED TO PASS TERMINALS BETWEEN 14Z AND 16Z SUNDAY. THE MAIN AVIATION CONCERN WILL BE A COLD FRONT MOVING THROUGH THE PANHANDLES DURING THE LATE MORNING HOURS ON SUNDAY.
1257 AM EST SUN MAR 8 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TONIGHT THROUGH MONDAY.
1150 PM CST Sat Mar 7 2015 Overall pattern will be marked by northwest flow aloft from the Canadian Rockies through the Great Lakes with an upper trough evolving over the Southern Plains. Chewed through the low-level inversion and then began mixing down from the 800mb level.
HIGH PRESSURE CONTINUES TO DOMINATE AREA WEATHER OVERNIGHT AND SUNDAY.
Clouds will continue to decrease tonight as a weak ridge of high pressure builds over the region. The air mass behind an associated cold front is slightly cooler and slightly more moist and the development of Local fog is possible by morning. High pressure will build aloft again Sunday, the air mass will be dry, and temps will trend upwards.
616 AM EDT SUN MAR 8 2015 WEAK HIGH PRESSURE WILL BE OVER THE REGION THROUGH MONDAY WITH A COUPLE OF TROUGHS PASSING THROUGH.
408 AM EDT SUN MAR 8 2015 A WEAK COLD FRONT WILL EXIT THE REGION EARLY THIS MORNING.
1235 AM EST SUN MAR 8 2015 HIGH PRESSURE MOVES OFF THE COAST TONIGHT. A WEAK TROUGH OF LOW PRESSURE DROPS INTO THE AREA LATE SUNDAY. BEFORE HIGH PRESSURE RETURNS FOR MONDAY.
OTHERWISE STRONG HIGH PRESSURE BUILDING INTO THE AREA WILL MAINTAIN WARM AND DRY CONDITIONS THROUGH THE FIRST HALF OF THE WEEK.
The airmass will continue to modify today, with high temperatures reaching the lower to mid 70s across the region.
341 AM EDT SUN MAR 8 2015 HIGH PRESSURE REMAINS CENTERED NEAR THE SOUTHEAST COAST TODAY. A WEAK COLD FRONT DROPS THROUGH THE AREA THIS AFTERNOON. BEFORE HIGH PRESSURE RETURNS FOR MONDAY. THE NEXT LOW PRESSURE SYSTEM AFFECTS THE AREA LATE MONDAY NIGHT THROUGH THE MIDDLE OF THE WEEK. LATEST SFC ANALYSIS REVEALS ~1029 MB HI PRES CENTERED NR THE GA/SC CST WITH A COLD FRNT/TROF OF LO PRES LOCATED NR THE OH VALLEY. HIGH PRESSURE TO THE SOUTH WILL PIVOT OFF THE MID-ATLANTIC/SOUTHEAST COAST BY MONDAY NIGHT.
AMPLIFYING NORTHERN STREAM ENERGY IS THEN SHOWN BY THE 00Z SUITE TO APPROACH THE LOWER PENINSULA BY 00Z THIS EVENING.
430 AM EDT SUN MAR 8 2015 THE DRY PRESSURE RIDGE EXTENDING INTO THE FORECAST AREA TODAY WILL SHIFT FARTHER OFF THE SOUTHEAST COAST MONDAY. THE DRY PRESSURE RIDGE IN THE FORECAST AREA WILL DOMINATE TODAY. THE RIDGE WILL BE FARTHER OFFSHORE TONIGHT. A DEVELOPING WARM FRONT WITH WEAK ISENTROPIC MAINLY IN THE WEST PART OF THE FORECAST AREA CLOSER TO THE DEEPER MOISTURE. EXPECT HIGHS IN THE LOWER TO MIDDLE 70S AND LOWS NEAR 50.
416 AM CDT SUN MAR 8 2015 328 AM CDT THE BIG PICTURE FEATURES A WEAK HIGH PRESSURE RIDGE SCOOTING OVER THE REGION EARLY THIS MORNING. A WEAK LOW PRESSURE SYSTEM SLIDES FROM NORTHERN MN TO SOUTHEAST ONTARIO THIS EVENING. RAISED LOWS THIS MORNING SINCE TEMPS REMAIN ON THE WARMER SIDE. ALSO RAISED HIGHS TODAY BE A DEGREE OR TWO CONSIDERING YESTERDAY WAS WARMER THAN EXPECTED IN MANY LOCATIONS. HIGH PRESSURE MOVES IN THIS EVENING WITH CLOUDS CLEARING OUT. JEE 340 AM CDT BROAD HIGH PRESSURE WILL SETTLE TO THE SOUTHEAST OF THE AREA OFF TO THE ATLANTIC SEABOARD WHILE LOW PRESSURE TRACKS TOWARDS JAMES BAY. AS THE NORTHERN LOW SHIFTS EAST HIGH PRESSURE BUILDS INTO THE UPPER MIDWEST WITH A WEAK COLD FRONT MOVING DOWN PART OF OF THE LAKE.
405 AM CDT SUN MAR 8 2015 PACIFIC MOISTURE WILL CONTINUE TO FILTER INTO NORTH TEXAS THE NEXT COUPLE OF DAYS AS A DEEP SOUTHERN BRANCH UPPER TROUGH APPROACHES THE STATE. MUCH OF THE RAINFALL THIS MORNING WILL BE LIGHT DUE TO DRY AIR IN THE LOWEST 5000 FT OF THE ATMOSPHERE.
1237 AM EST SUN MAR 8 2015 WEAK LOW PRESSURE WILL SLOWLY CROSS THE REGION TONIGHT THROUGH SUNDAY. ANOTHER AREA OF LOW PRESSURE WILL MOVE EAST THROUGH NORTHERN NEW ENGLAND ON MONDAY.
637 AM EDT SUN MAR 8 2015 WEAK HIGH PRESSURE WILL BRING A PERIOD OF DRY WEATHER SUNDAY AND MONDAY.
653 AM EDT SUN MAR 8 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TONIGHT THROUGH MONDAY.
A LITTLE COOLER TEMPS WERE NOTED IN NORTHEAST NEBRASKA WHERE LOW LEVEL COOL ADVECTION WAS BEING REALIZED AS COOLER SUB-ZERO 850 AIR IN THE DAKOTAS WAS ADVECTING SOUTH THIS AFTERNOON. EXPECT SURFACE TEMPERATURES TO HOLD ABOVE FREEZING DURING TIME OF PRECIPITATION. SO NOT EXPECTING ANY FREEZING RAIN. THUS TEMPERATURES SHOULD BE COOLER THAN TODAY. THEN HIGH PRESSURE SETTLING OVER THE AREA SUNDAY NIGHT WILL ALLOW FOR TEMPS TO RADIATE BACK DOWN INTO THE 20S ALL AREAS. OUR WARMING TREND THEN BEGINS MONDAY AS SOUTHWEST WINDS RETURN ON BACKSIDE OF RETREATING HIGH PRESSURE.
MAIN TROUGH WILL APPROACH MONDAY AND MONDAY NIGHT. WILL KEEP FORECAST DRY AFTER MONDAY NIGHT BUT THIS WILL HAVE TO BE WATCHED WITH MID-UPPER LEVEL LOW LINGERING THROUGH THE WEEK.
1220 AM EST SUN MAR 8 2015 A WEAK CLIPPER SYSTEM TRACKS ACROSS THE GREAT LAKES OVERNIGHT AND PUSHES IT'S WEAK COLD FRONT THROUGH OUR REGION EARLY SUNDAY FOLLOWED BY HIGH PRESSURE. A WEAK FRONT PASSES THROUGH ON MONDAY WITH WEAK HIGH PRESSURE BUILDING IN ITS WAKE MONDAY NIGHT.
438 AM EDT SUN MAR 8 2015 WEAK HIGH PRESSURE WILL BRING A PERIOD OF DRY WEATHER SUNDAY AND MONDAY.
WINDS ALOFT WILL PICK FROM THE S/SW IN RESPONSE TO THE APPROACHING UPPER LOW MOVING EAST FROM BAJA.
BUT WEAK LEE TROUGHING WILL CREATE BREEZY CONDITIONS AROUND KLVM AND BIG TIMBER. AS 500-MB RIDGING PERSISTS OVER THE REGION. TEMPERATURES THROUGH THE PERIOD WILL BE VERY WARM UNDER THE INFLUENCE OF THE UPPER LEVEL RIDGE.
A COLD FRONT ENTERS THE REGION AND FROPA APPEARS TO COMMENCE JUST BEYOND THE VALID PERIOD OF THE TAF. /ISSUED 322 PM CST SAT MAR 7 2015/ AS A CLOSED LOW MOVES ACROSS THE SOUTHWESTERN US/NW MEXICO AND WEAKENS PRECIPITATION WILL COME IN TWO WAVES. THIS INITIAL AREA OF LIFT WILL COME OUT AHEAD OF THE TROUGH BUT IS NOT EXPECTED TO BE VERY STRONG. THE LOW LEVELS WILL STILL BE SLOW TO MOISTEN.
438 AM CDT SUN MAR 8 2015 UPPER TROF CONTINUES TO DIG ESEWD ACROSS THE SWRN CONUS.
WINDS ARE CALM AND THE DRY AIR WILL ALLOW TEMPERATURES TO FALL TO NEAR OR JUST BELOW FREEZING IN MOST AREAS.
547 AM EDT SUN MAR 8 2015 WEAK COLD FRONT MOVES EAST TODAY. ANOTHER HIGH PRESSURE BUILDS BEHIND THE FRONT TONIGHT.
HIGH PRESSURE WILL BEGIN TO WEAKEN ON SUNDAY WITH A RETURN ONSHORE FLOW.
419 AM EDT SUN MAR 8 2015 WEAK COLD FRONT MOVES EAST TODAY. ANOTHER HIGH PRESSURE BUILDS BEHIND THE FRONT TONIGHT.
621 PM EST THU JAN 22 2015 HIGH PRESSURE WILL BUILD IN THROUGH FRIDAY BEHIND AN EXITING COLD FRONT. SEVERAL AREAS OF LOW PRESSURE WILL BRING UNSETTLED WEATHER OVER THE WEEKEND. LAST OF THE FLURRIES SHOULD BE ENDING SHORTLY AS HIGH PRESSURE AND MID LEVEL DRYING CONTINUES. AND CRITICAL THICKNESS VALUES SEEM TO BE ON THE WARM SIDE IN THE LOWER LEVELS.
643 PM CST THU JAN 22 2015 MAIN ISSUE IS THE POTENTIAL FOR VERY LIGHT FREEZING RAIN FRIDAY MORNING. WEAK TROUGH APPROACHES IN NORTHWEST FLOW TONIGHT. WARM ADVECTION AHEAD OF THE TROUGH WILL RESULT IN TEMPS ALOFT RISING TO 5C AROUND 900MB. PROFILES SUGGEST FREEZING RAIN WILL BE THE MAIN THREAT. MAYBE A BIT OF SLEET TOO BUT MOSTLY FREEZING RAIN. THE TROUGH AXIS WILL BE THROUGH OUR AREA. WITH WESTERN MN HAVING MORE DRY AIR PRESENT IN THE LOW LEVELS.
A LOOK AT SATELLITE SHOWS HIGH AND MID LEVEL CLOUDS MOVING OVER THE FORECAST AREA FROM A WEAK WARM FRONT THAT WILL BRUSH PAST THE AREA BY TOMORROW. THERE ARE SOME SOME LIGHT RETURNS ON THE RADAR HOWEVER, THIS FRONT IS PUSHING INTO A FAIRLY STRONG RIDGE AND CONSIDERING THAT NONE OF THE GROUND STATIONS HAVE REPORTED MEASURABLE PRECIPITATION, SUSPECT THE RETURNS ARE FALLING AS VIRGA AND EVAPORATING BEFORE THEY REACH THE GROUND. BY FRIDAY AFTERNOON, RIDGING BEGINS TO REBUILD AND PUSHES ANY CHANCE OF PRECIPITATION NORTH OF THE FORECAST AREA. THIS RIDGE WILL BE STRONGER THAN THE ONE EARLIER THIS WEEK AND THE RESULTANT INVERSIONS WILL BE EVEN STRONGER. THIS WILL HERALD THE RETURN OF VALLEY FOG AND LOW CLOUDS AND VERY WARM RIDGETOP TEMPERATURES.
ESPECIALLY IN THE LOW-LEVELS. ATMOSPHERIC MOISTURE IS EXPECTED TO CONTINUE TO INCREASE INTO THE DAY TOMORROW AHEAD OF AN APPROACHING COLD FRONT. AN AREA OF LOW PRESSURE CROSSING THE NORTHERN GULF OF MEXICO WILL CAUSE WINDS AND SEAS TO RAPIDLY BUILD OVER THE COASTAL WATERS EARLY FRIDAY.
A COLD FRONT HAS MOVED THROUGH THE AREA. THE TROUGH AXIS WILL BE TRANSITING OVERHEAD BY AFTN.
725 PM EST THU JAN 22 2015 A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION OVERNIGHT.
700 PM EST THU JAN 22 2015 HIGH PRESSURE WILL BUILD INTO THE AREA THIS EVENING AND GIVE US A GENERALLY CLEAR AND COLD NIGHT FOLLOWED BY SUNSHINE FOR FRIDAY.
WITH MAYBE THE LOWER ACADIANA ZONES STILL SEEING A LITTLE BIT OF HEAVIER PRECIP. BASED ON ALL THIS LOWERED POPS SOMEWHAT FOR THE REMAINDER OF THE NIGHT. A TROUGH OF LOW PRESSURE IS CURRENTLY WORKING ACROSS WEST TEXAS WITH AN ABUNDANCE OF ENERGY RIDING THROUGH OUR AREA AT THE MOMENT. RAIN SHOULD EXIT THE ENTIRE AREA BY FRIDAY NIGHT WITH HIGH PRESSURE BUILDING BACK INTO THE AREA.
THE NORTHERN VALLEY IS ABOVE FREEZING. AND WILL REMAIN ABOVE FREEZING. THE AREA FROM TVF TO BJI IS CURRENTLY BELOW FREEZING. FARTHER EAST WHERE TEMPS A BIT COOLER AND LAYER ALOFT A TAD LESS WARM SOME FREEZING RAIN IS PSBL. MOST MODELS TAKE BEST COVERAGE INTO THE RRV WHERE AIRMASS IS WARMER. FRIDAY NIGHT WILL BE A TAD COOLER AS WARM AIR ALOFT DROPS SOUTH AND WINDS ARE LIGHTER.
FARTHER EAST WHERE TEMPS A BIT COOLER AND LAYER ALOFT A TAD LESS WARM SOME FREEZING RAIN IS PSBL. MOST MODELS TAKE BEST COVERAGE INTO THE RRV WHERE AIRMASS IS WARMER. FRIDAY NIGHT WILL BE A TAD COOLER AS WARM AIR ALOFT DROPS SOUTH AND WINDS ARE LIGHTER.
MOISTURE IN THE FORM OF RAINFALL EXTENDS NORTH AND EAST OF THE LOW WITH THE LEADING EDGE OF THE PRECIP AS FAR AS MS AND NRN AL. IN TERMS OF EXPECTED FREEZING LEVELS. THIS IS BASED ON BOTH THE GFS AND NAM EXPECTED FREEZING LEVELS. LOW TEMPS WILL DROP TO NEAR FREEZING SOUTH AND A FEW DEGREES BELOW THAT ACROSS THE NORTH.
CHANCES OF RAIN WILL PERSIST AS THE UPPER TROUGH MOVES OVER SE TEXAS ON FRIDAY. AND THEN GIVE WAY TO A BUILDING RIDGE OF HIGH PRESSURE.
931 PM EST THU JAN 22 2015 HIGH PRESSURE WILL BUILD IN THROUGH FRIDAY BEHIND AN EXITING COLD FRONT. SEVERAL AREAS OF LOW PRESSURE WILL BRING UNSETTLED WEATHER OVER THE WEEKEND. LAST OF THE FLURRIES SHOULD BE ENDING SHORTLY AS HIGH PRESSURE AND MID LEVEL DRYING CONTINUES. AND CRITICAL THICKNESS VALUES SEEM TO BE ON THE WARM SIDE IN THE LOWER LEVELS.
THE FREEZING LEVEL SHOULD BE NEAR 4500 FEET OVERNIGHT AND RISE TO NEAR 7000 FEET ON FRIDAY.
614 PM EST THU JAN 22 2015 HIGH PRESSURE WILL BUILD EAST ACROSS THE THE OHIO VALLEY. OFFERING SLIGHTLY COOLER AND DRY CONDITIONS THROUGH THE REST OF THE WEEK.
SHORT TERM (Now through Monday): Strong H5 ridging will persist over the Desert Southwest and its effect will extend southeast over the area. Replacement high pressure from the Plains will move south into the northwest Gulf on Monday. Otherwise, fairly seasonal weather will prevail, albeit a bit warmer than normal.
1059 PM CDT Sat Aug 15 2020 The cold front has moved through the region with a few residual clouds lingering south of the Interstate 70 corridor. Temperatures this afternoon range from the upper 70s where cloud cover remains to the low to mid 80s elsewhere with drier air filtering in behind the front. Northwest flow aloft will prevail as the region will remain sandwiched between ridging to the west and troughing to the east with high pressure at the surface. High temperatures will generally reside in the mid 80s with lows in the low to mid 60s with essentially zero chances for rain. The conditions persist through the day Sunday thanks to high pressure and dry low level air.
Temperatures are still expected to be hot today, mid 90s to near 104, as the upper high remains just to our west. Outflow boundaries remain across the region and will aid with development of additional convection again this afternoon and evening across the FA as another weakness moves around the upper high. Additional convection may come from the higher terrain of NM as the region remains under northerly to north-northwesterly flow aloft.
Cold front appears to be just northwest of the OH river at this time.
The front exits by late Monday morning with another slightly cooler airmass building in.
331 AM EDT Sun Aug 16 2020 Synopsis/Discussion/Marine -Storms exiting this morning -Showers and weak storms possible Monday -Mild weather this upcoming week --Storms exiting this morning-- Convection from the approaching cold front continues to move eastward through central Michigan. The upper level trough continues to move through Central Canada with cooler air dropping down across the state today. Given it is still summertime, Max Temperatures will still be in the low 80s with northerly flow dominating today. --Showers and weak storms possible Monday-- As the upper low drops down toward the Great Lakes a secondary front will move through Moday.
255 AM MDT Sun Aug 16 2020 The midlevel high pressure has become centered over the southern end of the Great Basin and will remain quasi-stationary for the next few days. Highs will run well above normal again today, but like yesterday areas under the thicker smoke will remain a few degrees cooler than surrounding areas.
214 AM EDT Sun Aug 16 2020 A weak cold front will move through through the area today, bringing drier conditions to the region. Morning lows in the lower 70s. By Monday, the the stationary front will begin to progress as a cold front to the east off the SC coast with a more zonal flow developing over the area. Both the ECMWF and GFS show a developing trough west of the region in response to large dome of high pressure across the western portion of the country.
VFR conditions expected the next 24 hours, with light northeasterly winds behind a weak cold front. Temperatures for tomorrow morning were left as is but don't be surprised if they are a degree or two warmer than forecast thanks to the cloud debris keeping it a little warmer.