Aikyam-Lab/Synoptic-Bench huggingface dataset:
AS HIGH PRESSURE CENTERED OVER THE OH VALLEY REGION DOMINATES THE OVERALL PATTERN. THE LARGE DOME OF HIGH PRESSURE WILL CONTINUE TO GRADUALLY MAKES ITS WAY EWD INTO THE MID ATLANTIC COAST. THIS WILL AT LEAST RESULT IN SLIGHTLY WARMER TEMP TREND BY THE LATTER HALF OF THE WEEKEND PERIOD.
852 PM MST FRI DEC 4 2015 COLORADO UNDER A MODERATE SOUTHWEST FLOW ALOFT AHEAD OF NEXT WEAK TROF ACROSS THE NORTHERN ROCKIES AND GREAT BASIN. AS THE TROF APPROACHES WESTERN CO LATER TONIGHT. ASSOCIATED COLD FRONT STILL EXPECTED OVER NORTHEAST COLORADO DURING THE MORNING HOURS AS LOW LEVEL WINDS SHIFT NORTHERLY. THE TROUGH AXIS WILL BE LOCATED ALONG THE WESTERN CO BORDER BY 12Z SAT AND WILL MAKE IT TO THE EASTERN BORDER BY 00Z. THEN THE LOWER LEVELS WILL START TO MOISTEN UP TOWARDS 12Z. WL KEEP ISOLD TO SCT POPS IN THE HIGH COUNTRY AFT 09Z. WITH DECREASING QG ASCENT AFTER 18Z FOLLOWING THE PASSAGE OF THE UPPER TROUGH AXIS. UPPER LEVEL TROUGH WILL MOVE EAST OF THE AREA SATURDAY EVENING.
TEMPERATURES THIS AFTERNOON HAVE TRENDED A LITTLE WARMER THAN YESTERDAY WITH A FEW SPOTS MANAGING TO HIT THE 60 DEGREE MARK IN THE PAST HOUR OR TWO.
THE LOW CLOUDS WILL THEN DECREASE BY LATE MORNING AND A COLD FRONT WILL MOVE THROUGH THE DHT AND GUY TAF SITES SATURDAY AFTERNOON. /ISSUED 409 PM CST FRI DEC 4 2015/ THE HIGH CLOUDS PASSING THROUGH THE PANHANDLES THIS AFTERNOON HAVE KEPT HIGH TEMPS FROM REACHING INTO THE 60S LIKE YESTERDAY. THE WEAK AND DRY COLD FRONT SHOULD BE THROUGH THE SOUTHERN TEXAS PANHANDLE BY LATE AFTERNOON WHEN WINDS WILL BECOME LIGHTER AND NORTHERLY.
WITH A LEE TROUGH AHEAD OF THE SYSTEM DEVELOPING ALONG THE FRONT RANGE OF THE ROCKIES TONIGHT INTO EARLY SAT. SO FN-CONVERGENCE NOTED AS THIS TROUGH MOVES ACROSS. EXPECT SURFACE TEMPS TO STAY ABOVE FREEZING. BEFORE EASING A BIT ACROSS CENTRAL KANSAS JUST AHEAD OF A WEAK COLD FRONT.
HOWEVER NO STRATUS DEVELOPMENT IS EXPECTED WITH WINDS IN THE LOWEST 5 KFT RELATIVELY WEAK.
528 PM CST FRI DEC 4 2015 HIGH PRESSURE WILL DOMINATE THROUGH THE PERIOD WITH WIDESPREAD VFR CONDITIONS EXPECTED.
409 PM CST FRI DEC 4 2015 THE HIGH CLOUDS PASSING THROUGH THE PANHANDLES THIS AFTERNOON HAVE KEPT HIGH TEMPS FROM REACHING INTO THE 60S LIKE YESTERDAY. THE WEAK AND DRY COLD FRONT SHOULD BE THROUGH THE SOUTHERN TEXAS PANHANDLE BY LATE AFTERNOON WHEN WINDS WILL BECOME LIGHTER AND NORTHERLY.
a ridge axis extends from the Ohio Valley southwest to deep south TX. Ridging aloft and at the surface will maintain quiet weather this evening.
1042 PM EST FRI DEC 4 2015 RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH THE WEEKEND. CLEAR AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND AS HIGH PRESSURE SETTLES OVERHEAD.
ANY LINGERING SHOWERS WILL DECREASE, THEN LARGELY END THIS EVENING AS A TRANSITORY UPPER RIDGE MOVES ACROSS THE REGION. ALSO MAY SEE SOME FOG NEAR THE COLUMBIA RIVER IN THE LOWER BASIN OVERNIGHT. LIGHTER AMOUNTS OF SNOW AND/OR FREEZING RAIN WILL BE POSSIBLE FOR THE YAKIMA VALLEY, THE GORGE AND THE SIMCOE HIGHLANDS, BUT CONFIDENCE ON AMOUNTS IS LOW AND WILL HOLD OFF ON HIGHLIGHTS IN THESE AREAS.
638 PM EST FRI DEC 4 2015 A LARGE RIDGE OF HIGH PRESSURE OVER THE LOWER OHIO RIVER VALLEY FRIDAY AFTERNOON WILL BUILD NORTHEAST AND BECOME CENTERED OVER PENNSYLVANIA FOR THIS WEEKEND.
1038 PM EST FRI DEC 4 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION OVERNIGHT THROUGH THE WEEKEND.
227 PM PST FRI DEC 4 2015 HIGH PRESSURE BRINGS DRIER WEATHER SATURDAY WITH NEAR AVERAGE TEMPERATURES.
626 PM EST FRI DEC 4 2015 HIGH PRESSURE OVER THE REGION WILL BE PROVIDING CLEAR AND CALM CONDITIONS OVERNIGHT AT ALL TAF SITES.
724 PM EST FRI DEC 4 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT THROUGH THE WEEKEND.
450 PM MST FRI DEC 4 2015 HIGH CLOUDS IN THE WARM ADVECTION AHEAD OF THE NEXT LITTLE TROUGH WILL SPREAD ACROSS THE FORECAST AREA THIS EVENING THEN THE MAIN AREA OF INSTABILITY AND MOISTURE WILL REACH NW CO AND NE UT AFTER MIDNIGHT TONIGHT. TOWARD SUNRISE THE TROUGH WILL DEEPEN A BIT AND START DIGGING SOUTH. A WELL DEFINED UPPER LEVEL TROUGH WILL MOVE THROUGH EASTERN UTAH AND WESTERN COLORADO. COOLER AIR WILL ACCOMPANY THIS SYSTEM. SO THIS COMBINED WITH CLOUD COVER WILL BRING NOTICABLY COOLER MAX TEMPS FOR MUCH OF THE REGION. A TRANSITORY RIDGE WILL QUICKLY MOVE OVER THE AREA SATURDAY NIGHT.
640 PM CST FRI DEC 4 2015 A WEAK COLD FRONT WILL TRAVERSE THE FORECAST AREA TONIGHT. THE TURBULENCE IN THE LOW LEVELS SHOULD ALSO HELP TO INHIBIT ANY FOG FORMATION WHERE SNOWMELT OCCURRED DURING THE DAY. IT IS APPARENT THAT THE LOW-LEVEL INVERSION IS ONLY SLOWLY BEING ERODED IN SOUTHERLY FLOW. A MODEST COLD FRONT WILL CROSS THE AREA TONIGHT.
708 PM EST FRI DEC 4 2015 DRY HIGH PRESSURE WILL REMAIN ACROSS THE REGION THROUGH THE REST OF THE WEEK.
HIGH PRESSURE SYSTEM OVER THE MIDWEST WILL CONTINUE TO BE IN CONTROL OF THE WEATHER TONIGHT.
1019 PM EST FRI DEC 4 2015 LARGE AREA OF STRONG HIGH PRESSURE AND DRY AIR REMAINS LOCKED OVER THE ERN HALF OF THE US LATE THIS EVENING. WITH PRONOUNCED RIDGING EXTENDING THRU MICHIGAN. HIGH PRESSURE OVER FAR SW INDIANA WILL SHIFT EAST. MIGHT IT EXPAND BACK OUT AGAIN AFTER SUNSET? OUR LOW LEVEL FLOW WILL BACK MORE TO THE SSW AS THE HIGH MOVES EASTWARD. A LARGE AREA OF HIGH PRESSURE OVER THE NORTHEASTERN UNITED STATES WILL CONTINUE TO DOMINATE NORTHERN MICHIGAN'S WEATHER THROUGHOUT THIS FORECAST PERIOD.
645 PM EST FRI DEC 4 2015 RELATIVELY QUIET FCST PERIOD ON TAP AS REGIME WILL BE DOMINATED BY A STRONG RIDGE ACROSS THE EAST CONUS.
Temperatures are still on track to fall into the lower to mid 40s for most locations, which is close to normal for this time of year.
Where there are temperatures below freezing, the fog may deposit some icing on roads which could produce some slick spots.
/ISSUED 342 PM CST FRI DEC 4 2015/ AN UPPER TROUGH DIGGING ACROSS THE WEST COAST INTO THE GREAT BASIN WILL SWING EASTWARD TONIGHT. THUS DISPLACING A SHORT ROUND OF RIDGING ALOFT. A LEE TROUGH ACROSS EASTERN COLORADO WILL SLIDE SOUTH AND ATTEMPT TO VEER WINDS SOUTHWEST. WARMING H85 TEMPERATURES AND DOWNSLOPE BREEZES SHOULD PROMOTE TEMPERATURES WARMING INTO THE LOW-MID 60S.
AN UPPER TROUGH AND COLD FRONT WILL MAKE ITS WAY ACROSS NORTHERN NEVADA THROUGH THIS EVENING. HIGH PRESSURE WILL GRADUALLY BUILD INTO THE REGION WITH DRY AND CHILLY CONDITIONS BEGINNING SATURDAY.
TEMPERATURES ARE IN THE LOWER TO MID 70S. IN THE LOW LEVELS OF THE ATMOSPHERE. THE WESTERN EXTENT OF AN ATLANTIC RIDGE OF HIGH PRESSURE WILL BE LOCATED NEAR ANDROS ISLAND TONIGHT. A RIDGE OF HIGH PRESSURE WILL BE CENTERED OVER THE SOUTHEASTERN BAHAMAS OVERNIGHT.
/ISSUED 335 PM CST FRI DEC 4 2015/ MID-AFTERNOON SFC ANALYSIS SHOWS HIGH PRESSURE PLANTED OVER THE OHIO VALLEY. WATER VAPOR IMAGERY SHOWS WEAK RIDGING UPSTREAM OVER TX/SRN PLAINS. THE SRN PLAINS RIDGE WILL PUSH EWD IN RESPONSE TO A STRONG TROF PUSHING OUT OF THE ROCKIES. BY MID-WEEK THE HIGH IS PROGGED TO PUSH OFF TO OUR EAST.
626 PM EST FRI DEC 4 2015 A LARGE AREA OF CANADIAN HIGH PRESSURE WILL DRIFT SLOWLY EAST ACROSS THE REGION THROUGH THE WEEKEND PROVIDING SUNNY SKIES AND SLOWLY MODERATING TEMPERATURES.
STRONG SOUTHERLY WINDS AHEAD OF A COLD FRONT IN EASTERN NORTH DAKOTA WITH LIGHT TO MODERATE SOUTHWEST TO WEST WINDS OVER WESTERN NORTH DAKOTA WILL KEEP TEMPERATURES RATHER UNIFORM ACROSS THE FORECAST AREA TONIGHT. A WEAK COLD FRONT WILL TRAVERSE THE FORECAST AREA TONIGHT. THE TURBULENCE IN THE LOW LEVELS SHOULD ALSO HELP TO INHIBIT ANY FOG FORMATION WHERE SNOWMELT OCCURRED DURING THE DAY. IT IS APPARENT THAT THE LOW-LEVEL INVERSION IS ONLY SLOWLY BEING ERODED IN SOUTHERLY FLOW. A MODEST COLD FRONT WILL CROSS THE AREA TONIGHT.
HIGH PRESSURE OVER OHIO WILL KEEP WINDS CALM. THE CURRENT WEATHER GRIDS INCLUDE A MENTION OF PATCHY FREEZING FOG NEAR BODIES OF WATER.
A WEAK TROUGH OF LOW PRESSURE WILL PUSH THROUGH THE SOUTHERN GREAT BASIN AND MOHAVE DESERT THIS EVENING. BEHIND THE TROUGH WILL BE A FEW DEGREES OF COOLING ON SATURDAY AND SOME LOCALLY GUSTY NORTH WINDS DOWN THE COLORADO RIVER VALLEY.
534 PM EST FRI DEC 4 2015 RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH THE WEEKEND. MAINLY CLEAR SKIES ARE ANTICIPATED OVERNIGHT AS RIDGE OF HIGH PRESSURE MOVES OVER THE REGION. CLEAR AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND AS HIGH PRESSURE SETTLES OVERHEAD.
Weak upper level trough was over eastern Kansas this afternoon while another trough was moving into California. As high pressure moves off to the east tonight low pressure will continue to deepen along the lee of the Rockies, which will keep the lower boundary layer mixed overnight. Lows tonight will be warmer than the previous two nights and range from the upper 30s in north central Kansas to the lower 30s across east central Kansas. Despite the warm southerly winds the cloud cover as well as lower sun angle will lead to temperatures a few degrees cooler than today, but still above normal for early December with readings in the lower to mid 50s.
600 PM EST FRI DEC 4 2015 HIGH PRESSURE OVER FAR SW INDIANA WILL SHIFT EAST. MIGHT IT EXPAND BACK OUT AGAIN AFTER SUNSET? OUR LOW LEVEL FLOW WILL BACK MORE TO THE SSW AS THE HIGH MOVES EASTWARD. A LARGE AREA OF HIGH PRESSURE OVER THE NORTHEASTERN UNITED STATES WILL CONTINUE TO DOMINATE NORTHERN MICHIGAN'S WEATHER THROUGHOUT THIS FORECAST PERIOD.
512 PM CST FRI DEC 4 2015 HIGH PRESSURE OVER THE CENTRAL U. WILL RIDGE INTO SE TX TONIGHT.
/ISSUED 512 PM CST FRI DEC 4 2015/ HIGH PRESSURE OVER THE CENTRAL U. WILL RIDGE INTO SE TX TONIGHT.
648 PM EST FRI DEC 4 2015 RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH THE WEEKEND. MAINLY CLEAR SKIES ARE ANTICIPATED OVERNIGHT AS RIDGE OF HIGH PRESSURE MOVES OVER THE REGION. CLEAR AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND AS HIGH PRESSURE SETTLES OVERHEAD.
HIGH PRESSURE TO THE NORTH AND A STALLED BOUNDARY ACROSS SOUTH FLORIDA WILL KEEP A TIGHT PRESSURE GRADIENT ACROSS THE AREA WITH MODERATE AND GUSTY WINDS POSSIBLE. TEMPERATURES ARE ON TRACK TO FALL INTO THE 50S NORTH TO THE LOWER TO MID 60S CENTRAL AND SOUTH.
805 PM EST FRI DEC 4 2015 STRONG HIGH PRESSURE WILL REMAIN TO THE NORTH TONIGHT. LOWS OVER INLAND SE GA SHOULD DIP INTO THE LOWER TO MID 40S. WITH LOWS AT THE NE FL BEACHES IN THE LOWER 60S.
916 PM EST FRI DEC 4 2015 RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND SLOWLY MODERATING TEMPERATURES THROUGH THE WEEKEND. CLEAR AND DRY CONDITIONS WILL PERSIST THROUGH THE WEEKEND AS HIGH PRESSURE SETTLES OVERHEAD.
643 PM EST FRI DEC 4 2015 AVIATION HIGH PRESSURE WILL REMAIN IN CONTROL OF THE AREA THROUGH THE WEEKEND AND PRODUCE FAIR AND MILD WEATHER FOR THIS TIME OF YEAR.
THE RIDGE REMAINS IN PLACE THROUGH THE SHORT TERM.
UPPER LEVEL TROUGH AND ACCOMPANYING SHOWERS OVER IDAHO WILL MOVE EAST OF THE AREA OVERNIGHT.
949 PM CST FRI DEC 4 2015 SFC RIDGING REMAINS ANCHORED FROM THE OH VALLEY SW INTO ECNTRL TX THIS EVENING.
as ridge of high pressure currently west of the Mississippi River shifts slowly eastward today. As the high approaches, the winds will switch to the N by midday, then eventually to the W/NW by late afternoon. Due to the sunshine, high temperatures will be a few degrees warmer than guidance in the lower 30s.
702 AM EST SAT JAN 23 2016 THE STORM SYSTEM OVER THE EAST COAST WILL CONTINUE TO MOVE EASTWARD TODAY AS HIGH PRESSURE BUILDS OVER THE OHIO VALLEY.
533 AM CST SAT JAN 23 2016 Well, it has been a week since we have reached freezing at Kansas City and it may happen today as the warm-up begins. Sunday an upper level trough will shift east through the eastern Rockies into the central Plains. This will force an associated cold front into the area late Sunday night. Temperatures will be hovering just below freezing across northern MO allowing for freezing drizzle.
422 AM CST SAT JAN 23 2016 HIGH PRESSURE HAS SLID EAST OF THE AREA THIS MORNING. DRIVING AN AREA OF LOW PRESSURE AT THE SFC WITH IT. THOUGH IT WILL BE WARMER. IT WILL SEND A COLD FRONT INTO WRN/CENTRAL MN. AS THE LOW APPROACHES LAKE SUPERIOR.
612 AM CST SAT JAN 23 2016 QUIET WEATHER EARLY IN THE SHORT TERM AS UPPER RIDGING REMAINS ACROSS THE CENTRAL US. MILD WEATHER STILL EXPECTED FOR SUNDAY WITH NEARLY NORMAL TEMPS AS LOW PRESSURE BEGINS TO ORGANIZE ACROSS THE FRONT RANGE OF THE ROCKIES.
AN UPPER LEVEL LOW IS JUST COMING ONSHORE IN WRN OREGON AND NW CA THIS MORNING. A COLD FRONT WILL MOVE THROUGH TONIGHT.
AN UPPER RIDGE AXIS WAS SHIFTING INTO THE DAKOTAS THIS MORNING. THIS WILL ALLOW AN INCREASE IN MID LEVEL MOISTURE AS SOUTHWEST FLOW MOVES IN ON THE FRONT SIDE OF THE NEXT APPROACHING UPPER TROUGH. A WESTERN UPPER TROUGH MOVES INLAND TODAY AND WILL SLIDE INTO THE GREAT BASIN AND SPLIT TONIGHT. THIS SPLITTING TROUGH WILL TRACK ACROSS THE FORECAST AREA LATE TONIGHT AND SUNDAY. THE MAIN SURGE OF COLD AIR WILL TAKE PLACE SUNDAY NIGHT AS THE TROUGH SLIDES EAST AND NORTHWEST FLOW TAKES OVER.
Most of the precipitation came in the form of a NCFR (Narrow Cold Frontal Rainband), which brought heavy rain rates but only for a few moments. Looking upstream, convective showers in association with the upper low have begun to move inland along the Northern Coast.
WRAP AROUND CLOUDS FROM THE MID AND UPPER LEVEL LOW OVER THE MID ATLC CONTINUES OVER THE AREA WITH A COLD AIRMASS IN PLACE. JAX SOUNDING SHOWS FREEZING LEVEL IS ABOUT 1200 FT SO WITH RELATIVELY DRY AND COLD CONDITIONS IN THE LOWEST LEVELS. COLD AND BLUSTERY WITH HIGHS STAYING IN THE LOWER TO MID 40S WITH SKY COVER IMPROVING VERY GRADUALLY IN THE AFTN FROM S TO N.
AFTERNOON HIGH TEMPS WILL RANGE FROM THE LOW TO MID 40S NORTH OF I-20. ABOUT 20 DEGREES WARMER THAN SATURDAY NIGHT.
CURRENTLY - A LOW PRESSURE SYSTEM MOVING OFF NEAR THE CAROLINA COAST IS RESPONSIBLE FOR A LARGE AND STRONG WIND FIELD. COOLER NEARSHORE WATERS HAVE DELAYED THE ONSET OF STRONG WINDS FOR MUCH OF THE ISLAND CHAIN. DESPITE PASSAGE OF THE COLD FRONT. AND MINOR COASTAL FLOODING IS EXPECTED ALONG THE LOW LYING BAY SIDE COMMUNITIES THROUGH TODAY. THE PREVIOUSLY MENTIONED LOW WILL MIGRATE FURTHER NORTHEASTWARDS WHILE A LOOSE HIGH PRESSURE MOVES EASTWARD INTO THE SOUTHEASTERN UNITED STATES AND CENTRAL GULF OF MEXICO. THE MORE NORTHWEST TO NORTH FLOW OVERNIGHT INTO SUNDAY NIGHT WILL BRING IN COOLER AIR.
A LOW PRESSURE SYSTEM WILL BRING A MIX OF RAIN AND SNOW TO NORTHERN NEVADA LATER TODAY AND TONIGHT.
355 AM PST SAT JAN 23 2016 A WEAKENING COLD FRONT WILL MOVE ACROSS FAR SOUTHERN CALIFORNIA THIS AFTERNOON AND EARLY EVENING BRINGING A PERIOD OF LIGHT PRECIPITATION ALONG AND WEST OF THE MOUNTAINS AND IN THE UPPER DESERTS WITH STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS THIS EVENING.
400 AM MST SAT JAN 23 2016 AN UPPER LEVEL RIDGE WILL BE OVER THE STATE TODAY AND WILL BE SHIFTING EASTWARD TONIGHT AS AN UPPER LEVEL TROF MOVES INTO THE GREAT BASIN.
511 AM CST SAT JAN 23 2016 High pressure over the Ozarks will keep temperatures on the cool side for one more day with morning lows in the upper teens to lower 20s and wind chills in the upper single digits to lower teens this morning. This will be the beginning of a warm up however as an upper level ridge makes its way over the region tonight. The upper ridge will move quickly across the region though as another upper level trough moves into the plains Sunday night.
258 AM PST SAT JAN 23 2016 A MODERATE WINTER STORM SYSTEM AND COLD FRONT PASSAGE TODAY WILL CREATE GUSTY WINDS AND PERIODS OF MODERATE TO HEAVY SNOW IN THE SIERRA. A MIX OF RAIN AND SNOW IS EXPECTED FOR THE LOWER VALLEYS. CURRENT RADAR IMAGERY SHOWS THE COLD FRONT LOCATED NEAR THE SIERRA CREST. WINDS WILL BECOME SOUTHWEST-WEST AFTER THE COLD FRONT PASSAGE AND PEAK GUSTS SHOULD REMAIN AT SIMILAR SPEEDS THROUGH THE MORNING HOURS BEFORE SHOWING A DECREASING TREND THIS AFTERNOON.
THIS IS NOT THE TYPICAL CASE THOUGH WITH A MATURE CYCLONE ALONG THE EAST COAST AND EXPANSIVE DRY SLOT ROTATING IN FROM THE NORTHEAST. /ISSUED 306 AM CST SAT JAN 23 2016/ THE DEEP FULLY MATURE CYCLONE HAS SHIFTED EAST TO THE MID ATLANTIC STATES THIS MORNING WITH CYCLONIC FLOW ALOFT OVER THE MID SOUTH THAT SHOULD PERSIST THROUGH TODAY. HIGH TEMPERATURES SHOULD REMAIN NEAR OR BELOW FREEZING TODAY. THIS WILL BE ESPECIALLY TRUE ACROSS AREAS WITH REMAINING SNOWPACK WHERE LOW TEMPERATURES SHOULD PLUMMET INTO THE LOWER TEENS. HIGH PRESSURE MOVES EAST ON SUNDAY WITH A RETURN TO SOUTHERLY LOW LEVEL FLOW AND MODERATING TEMPERATURES.
912 AM EST SAT JAN 23 2016 LOW PRESSURE OFF THE MID ATLANTIC COAST WILL MOVE OUT TO SEA TODAY. HIGH PRESSURE WILL BUILD INTO THE OHIO VALLEY TONIGHT AND WILL MOVE EAST OF THE AREA ON SUNDAY.
THE CYCLONIC FLOW IN THE WAKE OF THE MASSIVE EAST COAST LOW PRESSURE SYSTEM WILL CONTINUE TO WEAKEN AS THE EAST COAST SYSTEM CONTINUES TO PULL AWAY TO THE EAST. THE LOWER CIGS ARE INDICATIVE OF AN INCREASINGLY SHALLOW FRONTAL INVERSION AS AIRMASS MODIFICATION CONTINUES INTO SUNDAY. CIRRUS WILL THICKEN SOMEWHAT TONIGHT AS IT COMES OVER THE TOP OF AN UPPER RIDGE SETTLING OVER THE SOUTHERN PLAINS. A STRONG UPPER LEVEL TROUGH WILL BE LIFTING OUT OF THE SOUTHERN ROCKIES INTO TX AND OK. UPPER LEVEL RIDGING AND AN INCREASING LOW LEVEL SOUTHERLY FLOW WILL FACILITATE ADDITIONAL WARMING ON SUNDAY.
These areas could experience a wintry mix today of rain/snow and potentially even light freezing rain. A weak cold front moves through tonight allowing snow levels to drop to most valley locations by Sunday morning.
HIGH PRESSURE WILL BUILD ACROSS THE GREAT BASIN MID WEEK.
FREEZING TEMPERATURES WILL CONTINUE TO SPREAD ACROSS THE HILL COUNTRY AND OVER AREAS ALONG THE I-35 CORRIDOR THIS MORNING. THE RETURN OF SOUTH AND SOUTHWEST WINDS WITHIN THE BOUNDARY LAYER TRANSLATES TO WARMER TEMPERATURES WITH ESTIMATED DAYTIME HIGHS IN THE MID TO UPPER 60S MOST AREAS.
503 AM CST SAT JAN 23 2016 12Z TAF CYCLE AN UPPER RIDGE WILL BUILD IN ACROSS THE PANHANDLES TODAY AND THEN WILL MOVE EAST AWAY FROM THE AREA TONIGHT AND SUNDAY. TAKING A LOOK AT TODAYS WEATHER WE SHOULD SEE HIGH TEMPERATURES SEVERAL DEGREES WARMER THAN YESTERDAY DUE TO AREA WIDE DOWNSLOPING WINDS. AN APPROACHING COLD FRONT WILL ALLOW DOWNSLOPING WINDS TO INCREASE FURTHER AND HELP PUSH HIGH TEMPERATURES TOWARDS THE 70 MARK. BRIEFLY CRITICAL FIRE WEATHER CONDITIONS WILL BE POSSIBLE ACROSS THE SOUTHWESTERN TEXAS PANHANDLE WHERE WINDS WILL BE THE STRONGEST AND RELATIVE HUMIDITIES WILL BE THE LOWEST.
HIGH PRESSURE WILL CONTINUE TO PULL SOUTH WITH SOUTHERLY WINDS INCREASING THROUGH THE DAY AND WAA RETURNING ACROSS THE WEST.
HIGH PRESSURE EXPECTED TO RETURN BY SUNDAY WITH PERIODS OF POSSIBLE DENSE FOG ACROSS THE SAN JOAQUIN VALLEY FOR MUCH OF THE NEXT WORK WEEK. THE COLD FRONT WHICH HAS BEEN SLOW TO PUSH THROUGH CENTRAL CALIFORNIA WILL FINALLY MOVE EAST OF THE AREA LATER TODAY. SHORT RANGE MODELS INDICATE THAT THE COLD FRONT WILL EAST OF THE CENTRAL CALIFORNIA INTERIOR BEFORE SUNSET WITH MORE UNSTABLE AIR PUSHING AT AROUND THAT TIME. UPPER LEVEL TROF EXITS THE REGION AND MOVES INTO THE FOUR CORNERS AREA BY MIDDAY SUNDAY.
/ISSUED 306 AM CST SAT JAN 23 2016/ THE DEEP FULLY MATURE CYCLONE HAS SHIFTED EAST TO THE MID ATLANTIC STATES THIS MORNING WITH CYCLONIC FLOW ALOFT OVER THE MID SOUTH THAT SHOULD PERSIST THROUGH TODAY. HIGH TEMPERATURES SHOULD REMAIN NEAR OR BELOW FREEZING TODAY. THIS WILL BE ESPECIALLY TRUE ACROSS AREAS WITH REMAINING SNOWPACK WHERE LOW TEMPERATURES SHOULD PLUMMET INTO THE LOWER TEENS. HIGH PRESSURE MOVES EAST ON SUNDAY WITH A RETURN TO SOUTHERLY LOW LEVEL FLOW AND MODERATING TEMPERATURES.
341 AM MST SAT JAN 23 2016 SW FLOW ALOFT WILL BE OVER THE AREA AS AN UPPER LEVEL TROUGH MOVES INTO THE GREAT BASIN TONIGHT. THE HRRR HAS READINGS IN THE 50S TO LOWER 60S EXCEPT OVER PORTIONS OF WELD COUNTY WHERE LINGERING SNOW COVER AND LESS DOWNSLOPE KEEP READINGS IN THE LOWER TO MID 40S. MEANWHILE THE RAP HAS HIGHS 5 TO 10 DEGREES COOLER IN MOST AREAS EXCEPT FOR LINCOLN COUNTY WHERE LESS CLOUD COVER WILL EXIST. MODELS HAVE FAIRLY STRONG SOUTHWESTERLY FLOW ALOFT FOR THE CWA SUNDAY MORNING WITH AN UPPER TROUGH AXIS OVER UTAH. THE TROUGH AXIS IS OVER THE CWA.
631 AM EST SAT JAN 23 2016 AVIATION A HIGH PRESSURE RIDGE WILL BRING FAIR WEATHER WITH PARTLY CLOUDY SKIES AND SEASONABLE TEMPERATURES TODAY. A TROUGH OF LOW PRESSURE WILL BRING A FEW FLURRIES TO NORTH AND CENTRAL LOWER MICHIGAN SUNDAY.
606 AM EST SAT JAN 23 2016 THE STORM SYSTEM OVER THE EAST COAST WILL CONTINUE TO MOVE EASTWARD TODAY AS HIGH PRESSURE BUILDS OVER THE OHIO VALLEY.
958 AM EST SAT JAN 23 2016 LOW PRESSURE OFF THE MIDDLE ATLANTIC COAST WILL CONTINUE TO MOVE EASTWARD THIS AFTERNOON AS HIGH PRESSURE BUILDS OVER THE OHIO VALLEY.
TEMPS IN THE LOWER/MID 30S. HIGH PRESSURE EXPECTED TO SETTLE OVER THE REGION WITH CONTINUED CLEAR SKIES AND LIGHT AND VARIABLE WINDS BY THE AFTERNOON. AS HIGH PRESSURE SLOWLY RETREATS EAST. THE LOW IS EXPECTED TO BE MUCH WEAKER AND REMAIN WELL NORTH OF THE REGION. MOST NOTICABLE BY MON WILL BE THE MUCH WARMER LOWS IN THE LOWER 40S C LA TO THE UPPER 50S SE TX. COOLER AND DRIER AIR FILTERS AS THE LOW MOVES EAST. DML THE PRESSURE GRADIENT WILL CONTINUE TO RELAX AS HIGH PRESSURE BUILDS SOUTH INTO THE REGION. WINDS WILL GRADUALLY SHIFT EAST THEN SOUTHEAST BY SUNDAY AS THE HIGH MOVES EAST OF THE AREA.
/ISSUED 344 AM CST SAT JAN 23 2016/ HIGH PRESSURE CENTERED JUST NORTHWEST OF COLLEGE STATION THIS MORNING WITH A VERY DRY AIRMASS OVERHEAD (PW 0. UPPER RIDGING ALONG THE ROCKIES INTO MEXICO DRY NW FLOW ALOFT IN PLACE THROUGH SUNDAY MORNING. TODAY AFTER A CHILLY START NEAR OR JUST BELOW FREEZING (CXO 30 AT 3 AM/CLL 32/IAH 36/GLS 41) TEMPERATURES SHOULD SLOWLY WARM UP INTO THE MID TO UPPER 40S BY LATE MORNING AND TOP OUT THIS AFTERNOON IN THE LOWER TO MID 50S BENEATH FULL JANUARY SUN. FLOW STRENGTHENING IN THE AFTERNOON AND OVERNIGHT WHICH WILL ALLOW FOR WARMER READINGS SUNDAY AND STILL UNDER MOSTLY SUNNY TO SUNNY SKIES WITH JUST A LITTLE CIRRUS SNEAKING IN FROM THE NORTHWEST.
OROGRAPHIC LIFT ALONG THE HIGH TERRAIN WILL KEEP THINGS GOING THERE THROUGH THIS EVENING. COMBINED WITH THE SUBFREEZING TEMPERATURES WILL HELP TO MAINTAIN HAZARDOUS TRAVEL CONDITIONS ON ANY UNTREATED ROADS. CHATTANOOGA AIRPORT, TN 32 22 44 27 / 40 10 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 29 18 37 22 / 60 10 0 0 OAK RIDGE, TN 31 18 38 23 / 60 10 0 0 TRI CITIES AIRPORT, TN 26 15 36 17 / 80 10 0 0 NC.
935 AM EST SAT JAN 23 2016 HIGH PRESSURE WILL BUILD ACROSS THE NORTH TODAY AND TONIGHT AS THE BIG STORM MOVING OFF THE MID ATLANTIC COAST PASSES WELL TO OUR SOUTH. HIGH PRESSURE WILL REMAIN ACROSS OUR REGION ON SUNDAY. THIS LOW IS BRINGING SIGNIFICANT WINTER STORM TO MID- ATLANTIC STATES WITH SNOW BEING MEASURED IN FEET AS OPPOSED TO INCHES. HIGH PRESSURE WILL BE OVER THE AREA SUNDAY BRINGING SUNNY TO PARTLY CLOUDY SKIES.
1059 AM EST SAT JAN 23 2016 LOW PRESSURE WILL YIELD WIDESPREAD SNOW OVER THE AREA. WITH HIGH PRESSURE BUILDING OVERHEAD ON SUNDAY. HIGH PRESSURE WILL BUILD OVERHEAD TONIGHT AS MASSIVE LOW CONTINUES ITS TREK OVER THE ATLANTIC. SOME LIGHT SNOW MAY BE POSSIBLE UNTIL LATE TONIGHT IN THE RIDGES.
616 AM EST SAT JAN 23 2016 HIGH PRESSURE WILL BUILD ACROSS THE WESTERN GREAT LAKES UPSTREAM OF THE BLOCKBUSTER SNOWSTORM ALONG THE EAST COAST.
635 AM EST SAT JAN 23 2016 HIGH PRESSURE WILL BUILD ACROSS THE NORTH TODAY AND TONIGHT AS THE BIG STORM MOVING OFF THE MID ATLANTIC COAST PASSES WELL TO OUR SOUTH. HIGH PRESSURE WILL REMAIN ACROSS OUR REGION ON SUNDAY. THIS LOW IS BRINGING SIGNIFICANT WINTER STORM TO MID- ATLANTIC STATES WITH SNOW BEING MEASURED IN FEET AS OPPOSED TO INCHES. HIGH PRESSURE WILL BE OVER THE AREA SUNDAY BRINGING SUNNY TO PARTLY CLOUDY SKIES.
AS THE LOW PUSHES FARTHER TO OUR EAST. ASSOCIATED COLD FRONT WILL MOVE SOUTH INTO OUR AREA LATER TODAY AND THROUGH NORTH DAKOTA THIS EVENING. UPPER TROUGH APPROACHES THE PLAINS ON SUNDAY. THIS WILL BRING COOLER TEMPERATURES ALONG WITH CHANCES FOR SNOW SPREADING ACROSS THE AREA INTO THE EVENING.
955 AM EST SAT JAN 23 2016 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW LOW PRESSURE WILL CONTINUE TO PULL AWAY FROM THE REGION. ALLOWING HIGH PRESSURE TO BUILD ACROSS THE AREA FOR THE WEEKEND.
AND DECENT RADIATIONAL COOLING CONDITIONS WILL EXIST ALLOWING TEMPS TO FALL INTO THE LOW TO MID 20S AROUND SUNRISE SUNDAY MORNING. THE WARMUP BEGINS SUNDAY WITH HIGHS BACK INTO THE UPPER 40S AND LOWER 50S AS MID LEVEL RIDGING BUILDS ACROSS THE SOUTHEAST.