Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE WEAK HIGH PRESSURE RIDGE CURRENTLY OVER THE FORECAST AREA WILL BE FORCED EAST OF THE AREA BY A LOW PRESSURE TROUGH CURRENTLY ALONG THE PACIFIC COAST. AS THE TROUGH APPROACHES THE ROCKY MOUNTAINS, IT WILL SPLIT SOMEWHAT, SENDING SOME ENERGY INTO THE SOUTHWEST U. THE PASSAGE OF THE TROUGH AND AN ASSOCIATED WEAK FRONTAL BOUNDARY WILL CAUSE BREEZY AND GUSTY WESTERLY DOWNSLOPE WINDS TO DEVELOP OVER THE PLAINS OF NORTH CENTRAL MONTANA. PRECIPITATION AND WIND WILL DECREASE TEMPORARILY THURSDAY EVENING IN THE IMMEDIATE WAKE OF THE TROUGH, BUT THE MOIST WESTERLY FLOW ALOFT WILL STRENGTHEN AGAIN LATER THURSDAY NIGHT INTO FRIDAY.
THE HIGH CLOUDS WILL REMAIN ACROSS THE FORECAST AREA THROUGH THE DAY WHICH WILL LIMIT TEMPERATURES FROM WARMING UP TOO MUCH BUT WE SHOULD SEE HIGH TEMPERATURES 5-10 DEGREES WARMER COMPARED TO YESTERDAY. FLOW ALOFT WILL GRADUALLY BECOME MORE CYCLONIC OVERNIGHT AS A TROUGH OVER THE WESTERN UNITED STATES CONTINUES TO MOVE EAST AND DEEPEN INTO A CLOSED LOW.
THIS MOISTURE IS AHEAD OF THE NEXT PACIFIC TROUGH. THE RIDGE AXIS HAS MOVED OVER WESTERN CO THIS AFTERNOON. WITH A FEW SHOWERS BEGINNING OVER THE NORTHWEST CORNER LATE TONIGHT AS THE TROUGH APPROACHES. THE TROUGH WILL SPLIT WITH ITS ASSOCIATED COLD FRONT DRAPED ACROSS CENTRAL UTAH BY THURSDAY MORNING. A CLOSED LOW WILL DEVELOP DUE TO THE SPLITTING TROUGH AND KEEP MOST OF THE MOISTURE WITH THIS SYSTEM OVER ARIZONA AND NEW MEXICO. SOME LOCATIONS WILL RECEIVE 2 TO 4 INCHES OF SNOW BUT WITH THE LOW TRACKING SO FAR SOUTH AND THE NORTHERN TROUGH MAKING A QUICK PASSAGE. HIGH PRESSURE WILL BUILD IN OVER THE WEEKEND YIELDING A SUNNY BUT COOL WEEKEND.
608 AM EDT THU OCT 29 2015 A COLD FRONT MOVES ACROSS THE REGION TODAY.
A COLD FRONT WILL PUSH THROUGH THE REGION OVERNIGHT. HIGH PRESSURE WILL FOLLOW THE FRONT INTO THE EASTERN U. FIRST OF THE HIGH LEVEL VARIETY IN ADVANCE OF A SERIES OF SOUTHERN STREAM PERTURBATIONS FROM THE SOUTHERN PLAINS TO THE CA COAST. FOLLOWED QUICKLY BY A BAND OF CEILINGS AROUND 5000 FT THAT WILL ACCOMPANY A COLD FRONT FORECAST TO CROSS CENTRAL NC LATE THIS AFTERNOON AND THIS EVENING. TEMPERATURES WILL BE NOTICEABLY COOLER THAN PREVIOUS DAYS. SOME LOWER 30S WILL BE POSSIBLE OVER THE NORTHERN PIEDMONT/IN CLOSEST PROXIMITY TO THE CENTER OF THE HIGH. DOWNSTREAM OF THE UPPER TROUGH DIGGING INTO THE SOUTHWEST US/SOUTHERN PLAINS.
311 AM EDT THU OCT 29 2015 A COLD FRONT WILL SWING THROUGH BY MID-MORNING.
355 AM CDT THU OCT 29 2015 YESTERDAY'S COLD FRONTAL PASSAGE HAS BROUGHT COOLER TEMPERATURES TO THE AREA WITH 3 AM READING IN THE MID TO UPPER 50S INLAND AND IN THE LOW TO MID 60S AT THE BEACHES.
359 AM EDT THU OCT 29 2015 A COLD FRONTAL BOUNDARY WAS MOVING SOUTHEAST THROUGH THE FORECAST AREA OVERNIGHT. HIGH PRESSURE WILL THEN BUILD IN FROM THE WEST FOR THE REMAINDER OF THE PERIOD.
159 AM EDT THU OCT 29 2015 LOW PRESSURE WILL LIFT NORTHEAST THROUGH THE GREAT LAKES REGION PROVIDING A CONTINUED CHANCE OF SHOWERS TONIGHT. A PAIR OF COLD FRONTS WILL MOVE THROUGH OVERNIGHT. USHERING IN DRIER AND COOLER CONDITIONS THOUGH THE END OF THE WEEK.
356 AM MDT THU OCT 29 2015 RELATIVELY QUIET WEATHER IN PLACE ACROSS THE AREA TODAY AS AN UPPER LEVEL RIDGE SHIFTS FROM THE ROCKY MOUNTAINS THIS MORNING INTO THE PLAINS BY THIS AFTERNOON. MODELS CONTINUE TO SHOW THE UPPER LEVEL TROUGH AXIS PUSHING ACROSS SOUTHEAST WYOMING LATE TONIGHT AND EARLY FRIDAY.
EXPECT A PLEASANT AFTN WITH TEMPERATURES TOPPING OUT IN THE LOWER 80S. THIS WILL FURTHER ENHANCE THE SLY FLOW IN THE LOWER LVLS.
A SURFACE FRONTAL TROUGH CURRENTLY LIES ACROSS OUR SOUTHERNMOST ZONES AND CONTINUES TO BLEED TOWARD SOUTH FLORIDA. WEAK HIGH PRESSURE SETTLING SOUTH WILL TRY TO REINFORCE THE LOW LEVEL NORTHWEST/WEST FLOW. TEMPERATURES SHOULD BE A FEW DEGREES COOLER. HIGHS IN THE LOWER 80S VOLUSIA COAST TO MID 80S INTERIOR AND SRN SECTIONS.
446 AM EDT THU OCT 29 2015 LARGE-SCALE ANALYSIS -- THE DEEP LAYER MEAN SUBTROPICAL ANTICYCLONE SHIFTED EASTWARD DURING THE LAST 24 HOURS. ASSOCIATED RIDGES EXTEND WESTWARD TO THE PACIFIC COAST OF MEXICO. THE HIGH EQUIVALENT TEMPERATURE VALUES NEAR THE SURFACE HAVE YIELDED A MODERATELY UNSTABLE ATMOSPHERE. AND LOW-LEVEL FLOW BECOMES MORE DIFLUENT THANKS TO A SLOWLY EXPANDING ANTICYCLONE OVER THE EASTERN UNITED STATES.
445 AM CDT THU OCT 29 2015 A COLD FRONT LOCATED ACROSS THE EXTREME NRN TX PNHDL AS OF THIS WRITING WILL CONTINUE MOVG SWD ACROSS THE REST OF THE FCST AREA THIS MORNING. PERIODS OF MID AND HIGH LEVEL CLOUDS WILL CONTINUE TO INVADE THE REGION TODAY IN ADVANCE OF AN UPPER LEVEL LOW PRESSURE SYSTEM CURRENTLY ORGANIZING OVER THE SWRN STATES. SHOWERS AND A FEW TSTMS WILL CONTINUE ACROSS THE FCST AREA FRIDAY AS THE UPPER LEVEL LOW PRESSURE SYSTEM TRANSLATES EWD ACROSS NM AND INTO WRN TX. ANOTHER COLD FRONT WILL MOVE THRU THE FCST AREA LATE FRIDAY AFTERNOON AND EVENING. MODELS ARE IN REASONABLE AGREEMENT HANDLING THIS PARTICULAR UPPER LEVEL LOW THRU FRIDAY NIGHT. THE WEEKEND WILL BE DRY WITH WARMER TEMPS.
536 AM EDT THU OCT 29 2015 A WEAK COLD FRONT WITH LIMITED MOISTURE WILL MOVE THROUGH THE FORECAST AREA LATE THIS AFTERNOON AND EVENING.
EXCEPT AT THE HIGHER ELEVATIONS AROUND AND AFTER MIDNIGHT WHERE SOME SNOW MAY MIX. WET ROADS MAY SEE SOME ISOLATED SLICK SPOTS DEVELOPING IN THE HIGHER ELEVATIONS OF THE NORTHEAST MOUNTAINS BY MORNING AS TEMPERATURES FALL INTO THE LOWER 30S UP THERE. UPPER TROUGH TOMORROW.
Precip along an approaching cold front is still expected to dissipate prior to reaching our Georgia and Alabama counties. A secondary cold front should push into the area late tonight, but no rain is expected to accompany the front with very dry air through the depth of the troposphere.
607 PM CST TUE FEB 16 2016 A highly amplified upper pattern remains in place across the lower 48 this afternoon. remaining in-between the western ridge and eastern U. trough. ridge east. not a whole lot to talk about as cold advection stratus will remain with us for a good part of the night before a weak warm front starts to lift through the area early Wednesday morning. expect winds to gradually shift to the southeast which should allow warmer air to work back into the region. tomorrow's afternoon highs will be noticeably warmer than today's.
STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP WEDNESDAY MORNING IN ADVANCE OF AN APPROACHING COLD FRONT THAT WILL SPREAD WIDESPREAD RAINFALL OVER THE REGION WEDNESDAY AFTERNOON AND EVENING.
High pressure over the central Plains will track into Missouri tonight. Temperatures expected to fall into the lower 20s across the far northern CWA, but range into the upper 20s south of I-72.
901 PM CST TUE FEB 16 2016 A band of light rain and snow has been progressing southeast across our forecast area, triggered by lift ahead of the advancing cold front. Thermal profiles are supporting enough melting in the lowest levels for light rain to reach the ground in areas south of Lincoln to Mattoon. Northwest winds behind the cold front should increase enough to keep dense fog out of the picture, but patchy fog could still develop. High pressure over the central Plains will track into Missouri tonight. Temperatures expected to fall into the lower 20s across the far northern CWA, but range into the upper 20s south of I-72.
GUSTY WINDS CONTINUE ACROSS THE CHEYENNE RIDGE AND AREAS ALONG AND WEST OF THE LARAMIE RANGE THIS AFTERNOON. WINDS WILL BE RELATIVELY SUBDUED WEDNESDAY AS AN UPPER LEVEL RIDGE SHIFTS ACROSS THE ROCKIES. WITH THE RIDGE IN PLACE DRY CONDITIONS WILL PREVAIL TONIGHT THROUGH WEDNESDAY NIGHT.
THE THREAT FOR DENSE FOG SHOULD END WITH A WEAK COLD FRONTAL PASSAGE AROUND 3-4 AM. A WEAK PRE FRONTAL TROUGH EXTENDED ACROSS THE NORTHERN HALF OF SE TX WITH A COLD FRONT EXTENDING FROM ABOUT KSHV TO SOUTH OF KACT TO KJCT. SFC DEW PTS ARE IN THE LOWER 60S AT KPSX AND THE SREF/HRRR FAVORS THE MATAGORDA BAY REGION FOR FOG OVERNIGHT. AHEAD OF THE WEAK TROUGH. /ISSUED 510 PM CST TUE FEB 16 2016/ A COLD FRONT WAS MOVING INTO THE KCLL AND KUTS AREAS AT 23Z. UPPER LEVEL RIDGING OVER THE WESTERN U.
A trough of low pressure at the surface will develop along the lee of the Rockies through early this evening as an upper level ridge axis approaches the central and northern Rockies. Given the light winds expected with this boundaries along with clear skies will stay close to the latest guidance with the lows tonight mainly around 32 degrees. A westerly down slope flow will improve on Wednesday as the upper ridge axis crosses the central and northern Rockies.
858 PM EST TUE FEB 16 2016 LOW PRESSURE OVER QUEBEC WILL LIFT NORTH EASTERN CANADA TONIGHT. LOW PRESSURE OVER EAST TENNESSEE PASSES SOUTH OF THE AREA TONIGHT.
TOOK A CLOSE LOOK AT EXPECTED FREEZING LEVELS ACROSS THE NORTH IN PARTICULAR AND ALSO LOOKED AT THE EXACT WEST TO EAST TERMINATION OF THE RAINFALL. WEDNESDAY LOOKS CLOUDY AND STILL RATHER COOL WITH HIGHS GENERALLY IN THE LOWER TO MID 40S. COULD SEE SOME PATCHY FREEZING FOG LATE WEDNESDAY NIGHT AS DECREASING CLOUDS COUPLES WITH NEUTRAL DELTA DEWPOINTS. FOR THE FREEZING FOG TO GET INTO FULL SWING.
HIGH PRESSURE WILL WILL SHIFT EAST WEDNESDAY AHEAD OF THE NEXT PACIFIC STORM SYSTEM.
THE CENTER OF THE LOW IS LOCATED OVER MIDDLE TN AND RECENT RADAR TRENDS AND SATELLITE IMAGERY INDICATE A SURGE OF DRY AIR COMING IN FROM WEST TN. HOWEVER, EVEN WITH THE DRIER AIR, THE LOWER LEVELS WILL REMAIN FAIRLY SATURATED DUE TO RECENT RAINFALL AND ARRIVAL OF COLDER AIR JUST OFF THE SURFACE WHICH SHOULD KEEP DEWPOINT DEPRESSIONS VERY MINIMAL. SKIES BEGIN TO CLEAR OUT TOMORROW AS HIGH PRESSURE DEVELOPS TO OUR NORTH. RIDGING DEVELOPS LATER THIS WEEK AND WE TRANSITION OUT OF THE PERSISTENT COLD NORTHERLY FLOW TO MORE OF A MILD/WARMING SOUTHERLY FLOW. EXPECT TEMPS TO WARM INTO THE LOWER 60S ON THUR, THEN CLOSE TO 70 DEGREES BY FRI.
834 PM EST TUE FEB 16 2016 A PLEASANT AND NOTABLY COOLER NIGHT IS ON TAP FOR TONIGHT. HIGH PRESSURE WILL GRADUALLY BUILD IN OVER THE WATERS THROUGH THE NEXT COUPLE OF DAYS.
726 PM EST TUE FEB 16 2016 LOW PRESSURE WILL TRACK ACROSS TENNESSEE THIS AFTERNOON AND EVENING. HIGH PRESSURE BUILDS IN WEDNESDAY AND WEDNESDAY NIGHT.
937 PM EST TUE FEB 16 2016 ON THE HEELS OF A COLD FRONTAL PASSAGE. WEAK HIGH PRESSURE WILL BUILD IN LATE TONIGHT INTO WEDNESDAY. ANOTHER COLD FRONT WILL THEN MOVE THROUGH THE AREA WEDNESDAY NIGHT.
AN AREA OF LOW PRESSURE OVER TENNESSEE AND SOUTHERN KENTUCKY WILL MOVE QUICKLY TO THE EAST AS MODELS MOVE AN UPPER TROUGH EAST OVER THE GREAT LAKES TONIGHT.
922 PM EST TUE FEB 16 2016 A COLD FRONT WILL PUSH SOUTHEAST ACROSS CENTRAL PA WEDNESDAY.
HIGH PRESSURE WILL BUILD INTO THE REGION TONIGHT AS THE H5 TROUGH CONTINUES TO SWING THROUGH THE TENNESSEE/MISSISSIPPI VALLEY. SLIGHTLY COOLER H85 LEVELS WILL ALSO LEAD TO RELATIVELY COOLER TEMPERATURES WEDNESDAY.
510 PM CST TUE FEB 16 2016 A COLD FRONT WAS MOVING INTO THE KCLL AND KUTS AREAS AT 23Z. UPPER LEVEL RIDGING OVER THE WESTERN U.
/issued 329 PM CST TUE FEB 16 2016/ (Tonight and Wednesday) Weak cold front has pushed across most of West Central Texas this afternoon, leaving northeast winds in its wake. However, cold air drainage locations will see temperatures much cooler readings once again.
HOT AND DRY WEATHER WILL CONTINUE THROUGH TUESDAY DUE TO HIGH PRESSURE AND WEAK OFFSHORE FLOW. A TROUGH OF LOW PRESSURE WILL BRING COOLER WEATHER FOR MID TO LATE WEEK.
AS WAVE TRACKS PAST AND THE LOWER TO MID LEVEL FRONTAL BOUNDARY DRIFTS EAST. AS MOISTURE PROFILES SHALLOW OUT BEHIND WAVE LATER TONIGHT AND GET A THERE WILL BE A CHANCE FOR SOME PATCHY FREEZING DRIZZLE DEVELOPING. COULD SEE AT LEAST A WEAK REPEAT OF THE OTHER DAY WHEN THE FOG WORKED TOWARD ADVECTING UP ALONG THE BUFFALO RIDGE AND LASTING WELL INTO THE DAY. SOME ROOM FOR TEMPS TO FALL THIS EVENING WITH SOME BREAKING OF THE LOWER CEILINGS. BUT PLENTY OF CLOUDS AND MOISTURE IN THE LOWER LAYERS SHOULD KEEP TEMPS FROM BOTTOMING OUT AS FLOW WORKS AROUND TOWARD THE SOUTHEAST. WHERE GREATEST CHANCE TO BREAK OUT OF THE CLOUDS AND EXPERIENCE SOME OF THE WARMER TEMPS ALOFT.
A WEAK PRE FRONTAL TROUGH EXTENDED ACROSS THE NORTHERN HALF OF SE TX WITH A COLD FRONT EXTENDING FROM ABOUT KSHV TO SOUTH OF KACT TO KJCT. SFC DEW PTS ARE IN THE LOWER 60S AT KPSX AND THE SREF/HRRR FAVORS THE MATAGORDA BAY REGION FOR FOG OVERNIGHT. AHEAD OF THE WEAK TROUGH. /ISSUED 510 PM CST TUE FEB 16 2016/ A COLD FRONT WAS MOVING INTO THE KCLL AND KUTS AREAS AT 23Z. UPPER LEVEL RIDGING OVER THE WESTERN U.
HIGH PRESSURE SPREADS INTO THE AREA TONIGHT WITH DRIER CONDITIONS FOR THE REST OF THE WEEK.
600 PM EST TUE FEB 16 2016 HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN THROUGH THE UPCOMING WEEKEND. BUT NOT ENOUGH FOR TEMPS TO FALL ANY LOWER THAN THE LOWER-MIDDLE 40S INLAND FROM THE INTRA- COASTAL AND UPPER 40S ON BARRIER ISLANDS. A DEEP LONG WAVE TROUGH WILL PREVAIL EAST OF THE APPALACHIANS AND WILL AID IN ALLOWING A WEAK BACKDOOR COLD FRONT TO DROP THROUGH LATE IN THE DAY INTO WEDNESDAY EVENING.
/ISSUED 506 PM EST TUE FEB 16 2016/ HIGH PRESSURE WILL BEING IN THROUGH WEDNESDAY. COLD FRONT QUIETLY CROSSING SOUTH FLORIDA THIS EVENING, WITH MUCH CALMER CONDITIONS OCCURRING THAN THOSE OF THIS MORNING. NORTHWEST WINDS WILL TURN NORTHEAST BY TUESDAY AS HIGH PRESSURE BUILDS INTO THE REGION. AS EXPANSIVE DEEP-LAYER RIDGE DOMINATES THE REGION.
There is some potential for another dense fog event since the low levels are already saturated from precip. The low level moisture will be persistent through Wednesday, and low clouds should hold tough through the day.
KEPT THE FREEZING DRIZZLE MENTION GOING IN THE FORECAST.
Upper ridging will build in tomorrow before we see more zonal flow through the end of the week. Lee troughing will turn winds to the south by tonight while a thermal ridge develops in the lower levels.
21Z ANALYSIS SHOWS A SURFACE COLD FRONT FROM CENTRAL WI TO ALONG THE IA/IL BORDER. A DRIER AIR MASS WILL ACCOMPANY THIS HIGH. CURRENT CLEAR AREA ACROSS NORTH-CENTRAL MN WILL MOVE SOUTH WITH THIS HIGH. TEMPERATURES WILL BE A BIT COOLER THAN TODAY WITH HIGHS MAINLY IN THE 20S.
942 PM EST TUE FEB 16 2016 THE NEXT WEAK LOW PRESSURE SYSTEM SKIRTS SOUTHERN PORTIONS OF THE AREA TONIGHT.
HIGH PRESSURE WILL CONTINUE TO DOMINATE THE REGION TODAY RESULTING IN ABOVE NORMAL DAYTIME HIGH TEMPERATURES.
654 PM EST TUE FEB 16 2016 A WEAK COLD FRONT WILL MOVE ACROSS THE FORECAST AREA LATE TONIGHT.
RAIN AND SNOW SHOWERS WILL TAPER OFF AND COOLER AIR WILL ARRIVE TONIGHT.
650 PM EST TUE FEB 16 2016 STRONG LOW PRESSURE IS CURRENTLY MOVING THROUGH THE REGION WITH THE TREND BEING FOR RAIN TO CHANGE BACK TO SNOW THROUGH THE LATE AFTERNOON INTO EARLY EVENING BEFORE PRECIPITATION ENDS. STRONG LOW PRESSURE CURRENTLY MOVING THROUGH THE HEART OF THE CWA. THIS TREND WILL CONTINUE AS THE LOW MOVES NORTHEAST THROUGH NORTHERN NEW ENGLAND INTO QUEBEC OVER THE NEXT SEVERAL HOURS. AREAS JUST S/E OF THESE COUNTIES INCLUDING ELMIRA, BINGHAMTON WILL SEE A BIT LESS BUT MAY STILL SEE SLICK ROADS AND TREACHEROUS TRAVEL AS THE CHANGE OVER OCCURS AND TEMPS FALL BELOW FREEZING. WE'LL SEE ANOTHER PERIOD OF COLD BUT RELATIVELY SEASONAL TEMPERATURES ON WEDNESDAY WITH THE POTENTIAL FOR LIGHT SNOW SHOWERS AS WELL DUE TO A COLD FRONT AND ASSOCIATED UPPER LEVEL DISTURBANCE MOVING THROUGH.
BUT AN OVERALL DRIER AND WARMER TREND IS EXPECTED AS THE WEEKEND APPROACHES. THE EARLY EVE UPDATE FEATURED SOME COSMETIC ADJUSTMENTS TO ALREADY SMALL PRECIP PROBS AND WEATHER AS LIGHT SNOW AND POSSIBLY SOME FREEZING DRIZZLE ARE ANTICIPATED. ALBEIT WEAK ADVECTION UNDER UPR TROFG WITH AXIS STRETCHING FM THE GREAT LAKES TO THE EASTERN GULF.
/ISSUED 439 PM CST TUE FEB 16 2016/ THERE ARE NO SHORT TERM WEATHER PROBLEMS OTHER THAN A CHANCE FOR FOG OVER SOME SOUTHWEST PORTIONS OF THE FORECAST AREA TONIGHT NEAR THE LOWER ATCHAFALAYA RIVER AND PARISHES TO THE EAST. MOISTURE ADVECTION AND COOL WATER WILL CREATE A MORE FAVORABLE ENVIRONMENT FOR FOG BEFORE DRIER AIR ASSOCIATED WITH THE COLD FRONT MOVES THROUGH BETWEEN LATE EVENING AND ABOUT 3 AM. COOLER BUT STILL PLEASANT CONDITIONS WITH DRY AIR AND MILD TEMPERATURES CAN BE EXPECTED ON WEDNESDAY.
AND IF SURFACE TEMPS ARE BELOW FREEZING. IT COULD BE LIGHT FREEZING RAIN. WEAK HIGH PRESSURE WAS LOCATED ACROSS THE REGION AT 20Z WITH ANOTHER WEAK CLIPPER SYSTEM OVER WESTERN NORTH DAKOTA. THE EXTENT AND DURATION OF THE CLOUD FIELD ALONG WITH THE AREAL COVERAGE OF THE REMAINING SNOW FIELD WILL IMPACT TEMPERATURES ON WEDNESDAY AS WARMER AIR SPREADS INTO THE REGION.
WEAK HIGH PRESSURE WILL REMAIN OVER THE ZONES TONIGHT AND THE AIRMASS WILL GENERALLY REMAIN DRY. ALSO ADDED AREAS OF FREEZING FOG TO THE NORTHEAST ZONES AND FRESHENED FIRST PERIOD POPS AND QPF.
838 PM EST TUE FEB 16 2016 WEAK COLD FRONTAL BOUNDARY TO PUSH THROUGH SOUTHEAST GEORGIA LATE TONIGHT AND WASHING OUT ACROSS NORTHEAST FLORIDA EARLY WEDNESDAY MORNING. HIGH PRESSURE BUILDS WEST OF THE REGION WITH MOSTLY SUNNY SKIES AND MAX TEMPS VERY CLOSE TO CLIMO VALUES IN THE 60S ACROSS SE GA AND NEAR 70 ACROSS NE FL.
Aside from a few passing high clouds skies should remain mostly clear overnight allowing temps to drop near or a little below freezing in most areas. /ISSUED 233 PM CST TUE FEB 16 2016/ The persistent and quite amplified positive PNA pattern of the past 7 to 10 days (western CONUS ridge/eastern CONUS trough) will break down temporarily over the coming week. South winds return on Wednesday as the ridge slides east.
931 PM CST TUE FEB 16 2016 BEHIND A COLD FRONT THAT DROPPED THROUGH THE REGION EARLIER TODAY. WITH TEMPS OVER CENTRAL MO IN THE LOWER 40S. AS THE HIGH PRESSURE CENTER DROPS INTO EAST CENTRAL AR BY SUNRISE. A COLD FRONT WILL CONTINUE TO MOVE THROUGH THE MID SOUTH FOR THE REMAINDER OF THIS AFTERNOON INTO THIS EVENING. SHORT TERM MODELS INDICATE CYCLONIC FLOW WILL REMAIN IN PLACE ACROSS THE LOWER MISSISSIPPI VALLEY FOR WEDNESDAY AND WEDNESDAY NIGHT WITH HIGHS TOMORROW IN THE MIDDLE TO UPPER 40S NEAR THE TENNESSEE RIVER AND LOWER TO MIDDLE 50S ELSEWHERE.
RIDGE CONTINUES TO BUILD INTO THE FORECAST AREA TONIGHT KEEPING THE SKIES MOSTLY CLEAR. THE RIDGE WILL DOMINATE THE WEATHER WEDNESDAY ACROSS THE FORECAST AREA WITH PARTLY TO MOSTLY SUNNY SKIES WITH TEMPS IN THE 20S.
516 PM CST TUE FEB 16 2016 ISSUED AT 250 PM| CST TUE FEB 16 2016 UPPER RIDGE TO THE WEST AND TROUGH OVER THE EASTERN CONUS WITH NORTHERN PLAINS IN NORTHWEST FLOW. WEST COAST RIDGE IS SLOWLY PROGRESSING EAST. NORTHWEST FLOW TONIGHT WILL BEGIN TO FLATTEN AS THE RIDGE AXIS MOVES TOWARDS THE ROCKIES. UNTIL THE RIDGE MOVES FURTHER EAST. A WEAK DISTURBANCE IS DRIFTING ACROSS THE HIGH PLAINS THROUGH THE OVERNIGHT HOURS AND EXPECT TO SEE A FEW RETURNS ON RADAR. ALSO WARMER AIR ARRIVES OVERHEAD. WARMER MAV/EC GUIDANCE SUGGEST UPPER 50S TO MID 60S FOR ALL BUT FAR NORTHEASTERN ZONES. THUS FORECAST FOLLOWS THE WARMER SIDE OF GUIDANCE.
UPPER TROF AXIS IS NOW MOVING INTO NERN GA WITH LOCAL RADARS SHOWING THE -RA HAS MOVED EAST OF THE TN VALLEY.
717 PM EST TUE FEB 16 2016 UPPER AIR PATTERN CONSISTS OF A 500 MB RIDGE IN THE WESTERN U. WITH A TROUGH IN THE UPPER GREAT LAKES THIS MORNING. THIS TROUGH MOVES EAST INTO THE LOWER GREAT LAKES WED MORNING WITH THE RIDGE MOVING INTO THE ROCKIES 00Z THU.
1006 PM EST TUE FEB 16 2016 A WEAK TROUGH MAY BRING A FEW SNOW SHOWERS TONIGHT INTO WEDNESDAY.
BUT HAVE PLENTY OF REMNANT CHAFF STREAKS SETTLING THROUGH THE LOWER ELEVATIONS. THE LOW LEVEL WINDS WILL CONTINUE TO TURN MORE FROM THE NORTH OVERNIGHT AND GAIN A FEW KNOTS. NO PRECIPITATION IS EXPECTED WITH THE STABLE CONDITIONS IN PLACE AND ADDITIONAL DRYING OF THE LOWER LAYERS.
TONIGHT: TEMPERATURES A BIT TRICKY WITH GOOD RADIATIONAL COOLING THIS EVENING AS RIDGE MOVES QUICKLY EAST. WED: RELATIVELY LIGHT WINDS ANTICIPATED ON WED AS WEAK RIDGE MOVES THROUGH AND RETURN FLOW DEVELOPS WED NIGHT. BUT WOULD NOT BE SURPRISED IF IT GOES A FEW/SEVERAL DEGREES WARMER. DEEP UPPER TROUGH REMAINS OVER THE EASTERN CONUS WITH NW FLOW ALOFT STILL IN PLACE OVER THE PLAINS. ALTHOUGH GFDI VALUES WILL BE IN THE HIGH END OF HIGH CATEGORY.
923 PM EST TUE FEB 16 2016 A WEAK COLD FRONT WILL MOVE ACROSS THE FORECAST AREA LATE TONIGHT.
559 PM CST TUE FEB 16 2016 Stubborn cloudiness persists over the region this afternoon as a low pressure system moves eastward generally over the I70 corridor. Surface counter-clockwise flow should help keep the low cloudiness over much of the region through the evening and into the overnight. A cold frontal boundary also pushed through this morning and has caused our surface winds to increase and veer northerly. Winds will begin to shift to a more southerly direction late Wednesday as high pressure moves east of the Ozarks into the southern Appalachians. Temperatures are going to warm well above average with much of the region hitting the lower 70s.
SKIES WILL REMAIN MOSTLY SUNNY WITH A NORTHWEST BREEZE AND HIGHS IN THE LOW TO MID 70S. BUT AS WEAK LOW PRESSURE PUSHES EAST TOWARD THE CAROLINA COAST TONIGHT.
HIGH AMPLITUDE RIDGING EXISTS TO OUR WEST AND THIS WILL PROVIDE NWRLY FLOW ALOFT MUCH OF THE NEXT 24 HOURS. HIGH PRESSURE WILL SETTLE INTO THE REGION THIS EVENING ALLOWING WINDS TO VEER. LEE TROUGH RAPIDLY SETS UP TOMORROW TO OUR WEST ALLOWING BREEZY SOUTHWESTERLY WINDS WITH SPEEDS IN THE TEENS ONCE AGAIN.
/ISSUED 233 PM CST TUE FEB 16 2016/ The persistent and quite amplified positive PNA pattern of the past 7 to 10 days (western CONUS ridge/eastern CONUS trough) will break down temporarily over the coming week. South winds return on Wednesday as the ridge slides east.
732 PM EST TUE FEB 16 2016 STRONG LOW PRESSURE IS CURRENTLY MOVING THROUGH THE REGION WITH THE TREND BEING FOR RAIN TO CHANGE BACK TO SNOW THROUGH THE LATE AFTERNOON INTO EARLY EVENING BEFORE PRECIPITATION ENDS. STRONG LOW PRESSURE CURRENTLY MOVING THROUGH THE HEART OF THE CWA. THIS TREND WILL CONTINUE AS THE LOW MOVES NORTHEAST THROUGH NORTHERN NEW ENGLAND INTO QUEBEC OVER THE NEXT SEVERAL HOURS. AREAS JUST S/E OF THESE COUNTIES INCLUDING ELMIRA, BINGHAMTON WILL SEE A BIT LESS BUT MAY STILL SEE SLICK ROADS AND TREACHEROUS TRAVEL AS THE CHANGE OVER OCCURS AND TEMPS FALL BELOW FREEZING. WE'LL SEE ANOTHER PERIOD OF COLD BUT RELATIVELY SEASONAL TEMPERATURES ON WEDNESDAY WITH THE POTENTIAL FOR LIGHT SNOW SHOWERS AS WELL DUE TO A COLD FRONT AND ASSOCIATED UPPER LEVEL DISTURBANCE MOVING THROUGH.
335 PM PST TUE FEB 16 2016 HIGH PRESSURE WILL CONTINUE TO DOMINATE THE REGION TODAY RESULTING IN ABOVE NORMAL DAYTIME HIGH TEMPERATURES.
LOOKS LIKE CLOUDS WILL BE AROUND OVERNIGHT WITH TEMPS DOWN IN THE LOW TO MIDDLE 30S BY DAYBREAK WEDNESDAY.
WEAK COLD FRONT MID AFTERNOON WAS MOVING INTO THE NORTHERN HILL COUNTRY AND CENTRAL TEXAS.
RESULTING IN HIGH TEMPERATURES THAT ARE 5 TO 8 DEGREE WARMER THAN THOSE EXPERIENCED ON TUESDAY. THE UPPER RIDGE IN PLACE OVER THE WESTERN UNITED STATES CONTINUES EAST OVER THE INTERMOUNTAIN REGION TONIGHT. AND THE HIGH PLAINS BY LATE WEDNESDAY AFTERNOON.
Most locations should see the rain/snow mix, but still minimal impacts are expected with temps at or above freezing. Clipper low digging well into the Mississippi Valley is on an otherwise favorable track for snow, but boundary-layer temps remain just enough above freezing to create a lot of precip-type issues. That said, we are seeing mostly a rain/snow mix over the Lower Ohio Valley so far, with just very slight slushy accumulations on elevated surfaces. Still a very marginal situation with temps at or just above freezing, so expect a half inch or less in most locations.
708 PM EST TUE FEB 16 2016 A WEAK TROUGH MAY BRING A FEW SNOW SHOWERS TONIGHT INTO WEDNESDAY.
745 PM EST TUE FEB 16 2016 THE NEXT LOW PRESSURE SYSTEM SKIRTS SOUTHERN PORTIONS OF THE AREA TONIGHT.
229 PM PST TUE FEB 16 2016 HOT AND DRY WEATHER WILL CONTINUE THROUGH TUESDAY DUE TO HIGH PRESSURE AND WEAK OFFSHORE FLOW. A TROUGH OF LOW PRESSURE WILL BRING COOLER WEATHER FOR MID TO LATE WEEK.
439 PM CST TUE FEB 16 2016 THERE ARE NO SHORT TERM WEATHER PROBLEMS OTHER THAN A CHANCE FOR FOG OVER SOME SOUTHWEST PORTIONS OF THE FORECAST AREA TONIGHT NEAR THE LOWER ATCHAFALAYA RIVER AND PARISHES TO THE EAST. MOISTURE ADVECTION AND COOL WATER WILL CREATE A MORE FAVORABLE ENVIRONMENT FOR FOG BEFORE DRIER AIR ASSOCIATED WITH THE COLD FRONT MOVES THROUGH BETWEEN LATE EVENING AND ABOUT 3 AM. COOLER BUT STILL PLEASANT CONDITIONS WITH DRY AIR AND MILD TEMPERATURES CAN BE EXPECTED ON WEDNESDAY.