Aikyam-Lab/Synoptic-Bench huggingface dataset:
545 AM CST TUE FEB 10 2015 FOR 12Z TAFS /ISSUED 257 AM CST TUE FEB 10 2015/ WATER VAPOR IMAGERY AND RAP H5 ANALYSIS INDICATED A DEPARTING TROF TO THE EAST OF THE CWFA, WITH AN UPPER RIDGE SHIFTING EASTWARD ACROSS THE CENTRAL PLAINS. OTHERWISE, AT THE SFC, HIGH PRESSURE OVER THE OHIO VALLEY WILL SHIFT TO THE EAST THROUGH THE DAY, ALLOWING WINDS TO SHIFT FROM NORTHERLY TO NORTHEASTERLY BY THIS AFTN. AS A RESULT OF THE RIDGING ALOFT AND INCREASED SUNSHINE TODAY, TEMPERATURES WILL WARM INTO THE UPPER 40S TO AROUND 50.
648 AM EST TUE FEB 10 2015 HIGH PRESSURE OVER THE WESTERN LAKES WILL MOVE ACROSS THE GREAT LAKES TODAY.
A SERIES OF COLD FRONTS WILL AFFECT CENTRAL ALABAMA OVER THE NEXT 10 DAYS. COLD FRONT NUMBER ONE HAS EXITED EAST AND SOUTH EARLY THIS MORNING.
COLD FRONT HAS PUSHED WELL SE OF THE AREA BUT A BLANKET OF LOW CLOUDS PERSISTS ACROSS MUCH OF THE AREA IN IT'S WAKE. SHARP GRADIENT BETWEEN DEPARTING LOW PRESSURE OFFSHORE AND HIGH PRESSURE BUILDING IN WILL PRODUCE SCA CONDITIONS FOR ALL LEGS TODAY.
611 AM EST TUE FEB 10 2015 HIGH PRESSURE OVER THE WESTERN LAKES WILL MOVE ACROSS THE GREAT LAKES TODAY.
AN UPPER LEVEL RIDGE IS FORECAST TO DOMINATE THE AREA FOR MOST OF TODAY WITH A NORTHWEST FLOW ALOFT. THE UPPER LEVEL FLOW WILL SHIFT TO THE SOUTHWEST AS AN UPPER LEVEL TROUGH APPROACHES FROM THE WEST.
MAIN LOW PRESSURE CENTER MOVING OFF THE CAROLINA COAST THIS MORNING WITH THE PRESSURE GRADIENT RELAXING OVER THE REGION THROUGH THIS AFTERNOON. AS THIS LOW CENTER MOVES EAST IT WILL ALSO PULL THE DEEP MOISTURE OFF SHORE WITH IT ALLOWING DRIER AIR TO PUSH INTO THE STATE.
COLD FRONT STILL ANTICIPATED TO MOVE THROUGH AREA LATE TONIGHT/EARLY WED. -HOWERTON GFS/ECMWF REMAIN IN SURPRISINGLY GOOD AGREEMENT WITH RIDGE BUILDING IN THE WESTERN US AND TROUGHING IN THE EAST. SENDING MUCH COOLER AIR INTO THE AREA ON SAT. THERE WAS SUFFICIENT AGREEMENT BETWEEN MODELS AND SURROUNDING OFFICES TO HEDGE COOLER THAN GUIDANCE FOR NOW. BUT THE LIFR CEILINGS ALREADY TAKE IT INTO THE LOWEST CATEGORY.
355 AM PST Tue Feb 10 2015 Dry and warmer conditions return for the remainder of the week. High pressure will build over the region the remainder of the week for a return of dry and mild weather.
/ISSUED 357 AM CST TUE FEB 10 2015/ ANOTHER PLEASANT DAY IS IN STORE FOR SOUTHEAST TEXAS AS THE REGION REMAINS ON THE EASTERN PERIPHERY OF A 500 MB RIDGE. ONSHORE FLOW WILL HELP ADVECT SOME COOLER AIR TOWARDS COASTAL SITES. AND MORE OF A NORTHWESTERLY FLOW BECOMES ESTABLISHED AS AN UPPER TROUGH SWINGS ACROSS THE GREAT LAKES.
324 AM MST TUE FEB 10 2015 POORLY ORGANIZED AND FRACTURED TROUGH WILL DROP SOUTHEAST INTO THE ROCKIES AND NRN PLAINS TODAY DRAGGING A SERIES OF COLD FRONTAL SURGES THRU THE CWA. THOUGH AT LEAST THE ECMWF SUGGESTS THIS MAY CHANGE IN THE VICINITY OF THE PINE RIDGE THIS MORNING.
QPF MAXIMA EXPECTED TO BE PLACED JUST NORTH OF THE LOW TRACK. ALTHOUGH THE HIGHER QPF AMOUNTS WILL BE ASSOCIATED WITH LOWER SNOW RATIOS.
459 AM CST TUE FEB 10 2015 CLEAR TO MOSTLY CLEAR WITH JUST A FEW INTERMITTENT CLOUDS FEATHERING INTO OUR EASTERN ZONES IN THE WAKE OF THIS BACK DOOR COLD FRONT. THIS COLD FRONT IS ALREADY WELL TO OUR SOUTHWEST WITH THE NEXT HIGH PRESSURE AREA FOR MIDWEEK LOOKING A BIT COLDER STILL COMING DOWN THE FRONT RANGE.
12Z TBW SOUNDING PROFILE DEPICTS A COOLER AND DRIER AIRMASS IN THE POST-FRONTAL ENVIRONMENT. CURRENT TEMP AND WIND FORECAST ARE ON TRACK WITH TEMPS LEANING TOWARDS THE WARMER MAV VERSUS THE COOLER MET OUTPUT. NORTHWEST WINDS ACROSS THE COASTAL WATERS WILL MAINTAIN THEIR SCEC RANGE THROUGH THE DAY BEFORE THEY SUBSIDE TONIGHT AND BECOME NE AS HIGH PRESSURE BUILDS INTO THE AREA.
503 AM EST TUE FEB 10 2015 LOW PRESSURE WILL MOVE FARTHER OFF THE SOUTHEAST COAST TODAY. A PRESSURE RIDGE APPROACHING FROM THE WEST WILL EXTEND THROUGH THE FORECAST AREA TONIGHT AND WEDNESDAY.
1004 AM EST TUE FEB 10 2015 LOW PRESSURE WILL MOVE FARTHER OFF THE SOUTHEAST COAST TODAY. A PRESSURE RIDGE APPROACHING FROM THE WEST WILL EXTEND THROUGH THE FORECAST AREA TONIGHT AND WEDNESDAY.
608 AM EST TUE FEB 10 2015 LOW PRESSURE WILL EXIT INTO THE CANADIAN MARITIMES TODAY AS HIGH PRESSURE BUILDS IN FROM THE NORTHWEST. THE HIGH WILL CREST OVER THE AREA TONIGHT AND WEDNESDAY.
MODELS ARE IN GOOD AGREEMENT SHOWING AN UPPER RIDGE BUILDING INTO THE FORECAST AREA TODAY IN RESPONSE TO A LARGE UPPER LOW NEAR 160 W.
High pressure to our north will ridge across our region this afternoon, allowing the current moderate north winds to subside and become more variable tonight. Highs today will be near normal, with lows tonight a little cooler than this morning, but still near normal.
A RIDGE OF HIGH PRESSURE WILL DEVELOP OVER THE EAST PACIFIC LATE TODAY THROUGH THE END OF THE WEEK.
THE UPPER TROUGH MAKES IT EASTWARD ACROSS THE FORECAST AREA WEDNESDAY MORNING INTO EARLY AFTERNOON.
THIS WILL PUSH THE WEAK COLD FRONT FROM NEAR THE I-70 CORRIDOR THIS MORNING INTO THE SAN JUAN MTNS THIS AFTERNOON. BY WEDNESDAY NIGHT THE TROUGH THAT DROPPED THROUGH THE AREA SHOULD BE RETREATING TO THE SOUTH AND SOUTHWEST.
I WILL PROLONG THE HIGHER AMOUNTS OF CLOUD COVER BY A COUPLE/FEW HOURS.
09Z SURFACE ANALYSIS PLACES AN ARCTIC COLD FRONT FROM THE TEXAS PANHANDLE BACK THROUGH THE NORTHERN GULF COAST AND CAROLINA COAST.
944 AM EST TUE FEB 10 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION LATER TODAY THROUGH WEDNESDAY.
530 AM CST Tue Feb 10 2015 Warmer temperatures are expected to return this afternoon for much of the region as southerly winds mix down increasing 925 hPa temps as warm as +8 C across eastern KS and far western MO, resulting in high temperatures in the lower to mid 50s. A strong cold front will sweep through the region late tonight into early Wednesday morning, resulting in falling temperatures through much of the day Wednesday.
601 AM EST TUE FEB 10 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION LATER TODAY THROUGH WEDNESDAY.
521 AM EST TUE FEB 10 2015 LOW PRESSURE WILL MOVE FARTHER OFF THE SOUTHEAST COAST TODAY. A PRESSURE RIDGE APPROACHING FROM THE WEST WILL EXTEND THROUGH THE FORECAST AREA TONIGHT AND WEDNESDAY.
CANCELLED THE FREEZING RAIN ADVISORY ACROSS THE SOUTH CENTRAL AND THE WINTER WEATHER ADVISORY THAT WAS IN EFFECT FOR BURKE. UPDATE TO CANCEL THE FREEZING RAIN ADVISORY NORTHWEST AND WEST. ALSO CANCELLED MANY COUNTIES IN SOUTH CENTRAL NORTH DAKOTA THAT WERE IN THE FREEZING RAIN ADVISORY. THE LOW WILL MOVE EAST AND INTO THE JAMES RIVER VALLEY BY MID AFTERNOON. ROUGHLY A 14MB PRESSURE GRADIENT FROM NORTHWEST TO SOUTHEAST SETS UP BEHIND THE DEPARTING THE LOW PRESSURE THIS AFTERNOON. WITH THE ONGOING PRECIPITATION AND EXPECTATION THAT THE FREEZING RAIN/SLEET WILL CHANGE TO SNOW IN THE JAMES RIVER VALLEY. CANADIAN HIGH PRESSURE WILL ROTATE SOUTHEAST ACROSS NORTH DAKOTA WEDNESDAY LEADING TO DRY CONDITIONS AND BELOW NORMAL TEMPERATURES.
HIGH PRESSURE ALOFT WILL DEVELOP ACROSS THE GREAT BASIN BY MIDWEEK.
950 AM EST TUE FEB 10 2015 LOW PRESSURE WILL EXIT INTO THE CANADIAN MARITIMES TODAY AS HIGH PRESSURE BUILDS IN FROM THE NORTHWEST. THE HIGH WILL CREST OVER THE AREA TONIGHT AND WEDNESDAY.
SFC RIDGING WILL PERSIST ACROSS THE REGION THROUGH THE TAF PERIOD. A 25-30KT SWRLY LLJ SHOULD ALSO RESULT IN SOME MVFR CIGS DEVELOPING AFTER 09Z IN THE HIGHER TERRAIN OF OVER SE OK/ADJACENT WRN AR. /ISSUED 459 AM CST TUE FEB 10 2015/ CLEAR TO MOSTLY CLEAR WITH JUST A FEW INTERMITTENT CLOUDS FEATHERING INTO OUR EASTERN ZONES IN THE WAKE OF THIS BACK DOOR COLD FRONT. THIS COLD FRONT IS ALREADY WELL TO OUR SOUTHWEST WITH THE NEXT HIGH PRESSURE AREA FOR MIDWEEK LOOKING A BIT COLDER STILL COMING DOWN THE FRONT RANGE.
THE EFFECTS OF THIS LOW ARE MORE NOTICEABLE AT H8 WHERE MUCH STRONGER WINDS ARE NOTED IN WAA REGIME OVER NTX. THE HIGHER SPEEDS WILL BE OUT ACROSS THE ROLLING PLAINS BUT EVEN THEN. MUCH COOLER TEMPERATURES WILL THUS BE IN STORE WHEN COMPARED TO THE PAST SEVERAL DAYS. BUT DOWNGLIDE AND DECREASING OMEGA FIELDS SHOULD QUICKLY ENSUE BY SOMETIME LATE AFTERNOON/EARLY EVENING BEHIND THE UPPER TROUGH.
TEMPERATURES WILL MODERATE WEDNESDAY AHEAD OF AN ARCTIC COLD FRONT. ALSO MAINTAINED THE PATCHY FREEZING DRIZZLE AND DENSE FOG WORDING AS SEVERAL OBS AND WEB CAMERAS ARE STILL SHOWING FOG AS OF THIS HOUR. COLD POOL ALOFT WILL MODIFY TODAY AS MID AND UPPER LEVEL RIDGE MOVES INTO THE UPPER MIDWEST. MODELS ARE SHOWING A SITUATION WHERE LOW MOISTURE REMAINS TRAPPED UNDER THE EASTWARD MOVING RIDGE. EVEN THOUGH THE RIDGE CONTINUES TO MOVE EASTWARD AND IN TURN WARM AIR ADVECTION INCREASES TONIGHT. THE NEXT COLD FRONT WILL MOVE THROUGH THE WESTERN GREAT LAKES AND UPPER MIDWEST WEDNESDAY MORNING AND REACH CENTRAL OHIO BY WEDNESDAY EVENING. BUT A PRE-FRONTAL TROUGH WILL BEGIN THE COLD AIR ADVECTION WEDNESDAY AFTERNOON. ANY PRECIP THAT FALLS WITH THE TROUGH WILL BE LIGHT. THE FIRST FRONT WILL CLEAR THE AREA WEDNESDAY EVENING WITH THE EXITING TROUGH.
503 AM EST TUE FEB 10 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION LATER TODAY THROUGH WEDNESDAY.
SHALLOW MOISTURE WILL STREAM NORTHWARD LATER TONIGHT AHEAD OF A STRONG COLD FRONT THAT WILL MOVE THROUGH NORTH TEXAS ON WEDNESDAY. WINDS ARE EXPECTED TO INCREASE THROUGH THE AFTERNOON WITH SOME MVFR CIGS JUST BEHIND THE COLD FRONT. A 925-850MB THERMAL RIDGE WILL NOSE INTO OUR WESTERN WE HAVE RAISED HIGHS INTO THE LOWER 80S WEST OF I-35.
541 AM CST TUE FEB 10 2015 UPDATE TO CANCEL THE FREEZING RAIN ADVISORY NORTHWEST AND WEST. ALSO CANCELLED MANY COUNTIES IN SOUTH CENTRAL NORTH DAKOTA THAT WERE IN THE FREEZING RAIN ADVISORY. THE LOW WILL MOVE EAST AND INTO THE JAMES RIVER VALLEY BY MID AFTERNOON. ROUGHLY A 14MB PRESSURE GRADIENT FROM NORTHWEST TO SOUTHEAST SETS UP BEHIND THE DEPARTING THE LOW PRESSURE THIS AFTERNOON. WITH THE ONGOING PRECIPITATION AND EXPECTATION THAT THE FREEZING RAIN/SLEET WILL CHANGE TO SNOW IN THE JAMES RIVER VALLEY. CANADIAN HIGH PRESSURE WILL ROTATE SOUTHEAST ACROSS NORTH DAKOTA WEDNESDAY LEADING TO DRY CONDITIONS AND BELOW NORMAL TEMPERATURES.
912 AM EST TUE FEB 10 2015 A STRENGTHENING LOW PRESSURE SYSTEM WILL REMAIN LARGELY TO THE SOUTH OF OUR AREA TODAY.
AN UPPER LEVEL TROUGH EXTENDING FROM SOUTHERN NM INTO EASTERN OKLAHOMA WILL BE MOVING SLOWLY EAST ACROSS N CENTRAL TEXAS FRIDAY WHILE KEEPING A FAIRLY ZONAL FLOW ALOFT OVER DEEP SOUTH TEXAS. RIDGE REMAINS IN CONTROL ALOFT OVER MOST OF THE SOUTHERN PORTION OF THE GULF STREAMING PACIFIC MOISTURE ACROSS CENTRAL MEXICO AND THE LOWER VALLEY.
335 PM CST THU JAN 15 2015 LATEST SATELLITE IMAGERY SHOWED THE SHORT WAVE TROUGH PUSHING THROUGH THE REGION AT MID AFTERNOON. OPTED TO GO WITH THE MORE COOLER MODEL WITH LOWS IN THE LOWER TO MIDDLE 20S. MODELS ARE SHOWING SOME HIGH THIN CLOUDS AND A LOW LEVEL GRADIENT WHICH MAY IMPAIR THE EASTERN AREAS FROM REACHING THE LOWER 20S. FULL SUNSHINE ON FRIDAY WILL SEND HIGHS NEAR NORMAL LEVELS INTO THE LOWER 50S.
WITH TEMPERATURES HOVERING NEAR FREEZING AND A FEW LOCATIONS JUMPING UP ABOVE FREEZING AT THE SURFACE. MULTIPLE REPORTS OF SLEET FALLING ACROSS NORTHWESTERN ALABAMA AND SOME ICING ON BRIDGES PROMPTED THE ISSUANCE OF A WINTER WEATHER ADVISORY THAT RUNS THROUGH 6 PM THIS EVENING. TEMPERATURES SHOULD HOLD AT TO SLIGHTLY ABOVE FREEZING DURING THIS TIME FRAME AND WE EXPECT A CONTINUED MIXTURE OF RAIN/SLEET. THESE CONDITIONS WILL ALLOW FOR ICING ON BRIDGES AND OVERPASSES. THIS EVENING TEMPERATURES ARE EXPECTED TO DROP BACK DOWN BELOW FREEZING AND WE MAY SEE SOME ICY CONDITIONS ON ROADWAYS OVERNIGHT.
THE LOW CLOUDS AND SOME FOG/DRIZZLE REMAIN TRAPPED UNDER THE INVERSION AROUND 2500 FEET AND OVER THE LAST FEW HOURS THE MID/HIGH CLOUDS AND SOME LIGHT RAIN HAVE MOVED OVER LOCATIONS FROM THE TAMPA BAY AREA NORTHWARD. HIGH PRESSURE WILL BEGIN TO BUILD IN BRINGING SOME MORE COOL DRY AIR INTO THE FORECAST AREA WHICH SHOULD HELP TO GRADUALLY CLEAR SKIES FROM NORTH TO SOUTH DURING THE DAY. HIGHS ON FRIDAY WILL REMAIN BELOW NORMAL WITH TEMPERATURES CLIMBING INTO THE LOWER 60S NORTH TO THE UPPER 60S SOUTH. THE FORECAST AREA WILL BE UNDER THE INFLUENCE OF WEAK MID LEVEL RIDGING SANDWICHED BETWEEN TWO TROUGHS.
1156 AM EST THU JAN 15 2015 HIGH PRESSURE OVER THE LOCAL AREA WILL MOVE SOUTHEAST AND WEAKEN OVER THE CAROLINAS BY THIS EVENING. LOW PRESSURE WILL MOVE EAST ACROSS THE NORTHERN GREAT LAKES AND FORCE A TRAILING COLD FRONT TO CROSS THE AREA FRIDAY AFTERNOON.
ALSO THE LOW CLOUDS ARE PERSISTING IN THE UPPER GUNNISON BASIN. THEREFORE AGAIN ADDED SOME FOG TO THE LOWER VALLEYS THAT SAW FOG THIS MORNING.
DRY HIGH PRESSURE WILL BUILD INTO THE REGION ON FRIDAY.
HIGHS WILL BE IN THE LOWER 50S ACROSS THE HILL COUNTRY TO THE MID AND UPPER 50S ALONG THE I-35 CORRIDOR AND COASTAL PLAINS. THIS WILL ALLOW THE RETURN OF SOUTHERLY FLOW ACROSS THE AREA AND HIGH TEMPERATURES TO REACH THE LOWER 60S.
SW winds 7-14 mph today ahead of a weak short wave trof over central WI/IA that moves into central IL this evening and passes through dry. Forecast warming up through the week going into the weekend with some temps expected above freezing for some locations on Friday.
COLD AIR ADVECTION WILL OCCUR ON THE BACKSIDE OF THIS LOW AND A TIGHT BAROCLINIC ZONE WILL SET UP NEAR OR JUST WEST OF OUR CWA BY LATE AFTERNOON. THIS BAROCLINIC ZONE WILL THEN SINK A BIT FURTHER SOUTH BEFORE MOVING BACK NORTHEAST ON FRIDAY AHEAD OF A LOW LEVEL TROUGH. THE LOW LEVEL FLOW WILL VEER THROUGH THE DAY FRIDAY AND BECOME EAST FOR A TIME BEFORE BECOMING SOUTHEAST. AS THE 850MB TROUGH MOVES IN. WE DID ADD SOME FLURRIES/PATCHY FREEZING DRIZZLE TO AREAS MAINLY WEST AND SOUTH OF HIGHWAY 53 ON FRIDAY. THE CHANCES OF FREEZING DRIZZLE AND VERY LIGHT SNOW. STRONG WARM AIR ADVECTION IN ADVANCE OF APPROACHING TROF AND COLD FRONT WILL GENERATE THE LIGHT PRECIPITATION. GIVING FREEZING DRIZZLE.
401 PM EST THU JAN 15 2015 HIGH PRESSURE OVER THE LOCAL AREA WILL MOVE SOUTHEAST AND WEAKEN OVER THE CAROLINAS BY THIS EVENING. LOW PRESSURE WILL MOVE EAST ACROSS THE NORTHERN GREAT LAKES AND SLIP A COLD FRONT ACROSS THE AREA FRIDAY MORNING.
345 PM CST THU JAN 15 2015 (Tonight and Friday) Finally, a sunny and relatively warmer day across West Central Texas with temperatures in the mid 50s areawide. Radiational cooling set up tonight, so overnight lows at or below freezing for most locations. Warmer on Friday with highs climbing well into the 60s.
TODAY THROUGH FRIDAY NIGHT CURRENT SURFACE ANALYSIS HAS HIGH PRESSURE OVER THE NORTHERN ROCKIES WITH A BROAD TROUGH OVER THE CENTRAL PLAINS. UPPER LEVEL ANALYSIS SHOWS AN AREA OF LOW PRESSURE OVER THE HUDSON BAY REGION. WITH A STRONG RIDGE OF HIGH PRESSURE OVER THE WEST COAST. QUIET WEATHER AND A WARMING TREND WILL CONTINUE THROUGH THE END OF THE WORK WEEK AS THE UPPER RIDGE SLOWLY SLIDES EAST INTO THE ROCKIES. ALLOWING FOR THE CONTINUED ADVECTION OF WARMER AIR. WHILE SOME LOCATIONS AROUND THE BLACK HILLS WILL LIKELY REACH INTO THE LOW 50S. TEMPERATURES ON FRIDAY WILL BE COMPARABLE TO TODAY WITH SOME LOCATIONS A LITTLE WARMER DUE TO LESS SNOW COVER AND THE THERMAL RIDGE BEING CENTERED OVER THE CWA.
334 PM CST THU JAN 15 2015 SUNNY SKIES AND RISING HEIGHTS BEHIND A DEPARTING UPPER TROUGH LED TO A WARMER DAY TODAY WHERE TEMPERATURES CLIMBED INTO THE LOWER TO MID 50S. EVEN WARMER TEMPERATURES ARE SLATED FOR FRIDAY AS LEE TROUGHING INDUCING DOWNSLOPING SOUTHWEST WINDS WILL HELP TO BUMP TEMPERATURES UP INTO THE LOWER TO MID 60S.
A DRY SLOT WORKED INTO THE CENTRAL SECTIONS OF THE AREA EARLIER THIS MORNING AND HAS LIMITED THE HEAVIER PRECIPITATION TO THE SOUTH WHERE THE TEMPERATURES ARE WELL ABOVE FREEZING.
SNOW AND SHOWERS AND FLURRIES ARE FORECAST TO ACCOMPANY THAT COLD FLOW REGIME WITH INCH OR LESS ACCUMULATIONS FOR THE RIDGES AND I 80 CORRIDOR AS ACCUMULATION POTENTIAL WL BE HAMPERED BY LOW INVERSION LVLS AND SHALLOW MSTR.
HIGH PRESSURE AT THE SURFACE AND ALOFT STRENGTHENS OVER THE REGION TODAY. THEN IS FLATTENED INTO FRIDAY AS THE NEXT TROUGH WORKS INTO THE PACIFIC NW. MEANWHILE SKIES ARE MOSTLY CLEAR IN THE HIGH COUNTRY. RIDGE DURING THE END OF THE SHORT-TERM. THIS WILL AID THE NEXT TROUGH WHICH STRENGTHENS A BIT AS IT SLIDES QUICKLY PAST NORTHERN CO FRI NIGHT AND SAT. BROAD RIDGING AND MAINLY NW FLOW ALOFT DOMINATE SAT NIGHT THROUGH SUN NGT. THEN A SERIES OF WEAK DISTURBANCES RIDE OVER THE TOP OF THE RIDGE MON AND TUE.
THESE CLOUDS MAY SLOW THE EROSION OF THE STRATUS IN THE LOWER TREASURE VALLEY. THERE IS ALSO A CHANCE THAT MALHEUR COUNTY AND THE LOWER TREASURE VALLEY MAY END UP IN AN ADVISORY AS WELL. THE UPPER RIDGE AXIS IS OVER THE REGION THIS MORNING AND HAS ALLOWED THE INVERSION CLOUDS TO REMAIN LOCKED IN NEARLY ALL SE OREGON/SW IDAHO VALLEYS. THE LOCATIONS THAT WILL SEE FOG THIS MORNING WILL BE IN THE HIGHER ELEVATION VALLEYS /LIKE THE LONG VALLEY/ WHERE THE TOP OF THE INVERSION IS SHALLOW. TOTAL AMOUNTS WILL GENERALLY RANGE FROM 1-2 INCHES IN THE LOWER VALLEYS AND 2-5 INCHES IN THE MOUNTAIN VALLEYS.
1218 PM EST THU JAN 15 2015 HIGH PRESSURE WILL CONTINUE OVER THE AREA TODAY.
LATEST SATELLITE IMAGERY SHOWED THE SHORT WAVE TROUGH APPROACHING THE REGION FROM THE PLAINS. AREA RADARS WERE PICKING UP ONLY LIGHT RAIN IN OUR CWA AS THE TEMPS HAVE RISEN ABOVE FREEZING. WILL LEAVE SNOW/SLEET/RAIN WORDING IN ALONG THE HIGHWAY 82 CORRIDOR THROUGH ABOUT 15Z. LOOKING FOR THE UPPER TROUGH TO SWEEP THROUGH THE AREA LATER THIS MORNING. LOW TEMPERATURES WILL DIP DOWN INTO THE LOWER TO MID 20S TONIGHT. WHICH COULD KEEP THE FAR EASTERN ZONES FROM FALLING INTO THE LOWER 20S OVERNIGHT. WITH MUCH OF THE AREA IN THE LOWER 50S.
TEMPERATURES WILL DROP BACK INTO THE LOW TO MID 20S. HIGH PRESSURE WILL REMAIN IN CONTROL ACROSS EASTERN KY. WHICH MAY SEE A FEW MORE CLOUDS DUE TO A COLD FRONTAL BOUNDARY SITTING WELL NORTH OF THE REGION. THE PERIOD WILL BEGIN WITH RIDGING AT THE SFC AND ALOFT BEING THE DOMINANT WEATHER MAKER.
251 PM CST Thu Jan 15 2015 A fair amount of sunshine this afternoon along with sw winds 8-14 mph was giving milder temps in the mid 30s to lower 40s (mildest from Jacksonville sw and in southeast IL) Bloomington was cold spot just shy of freezing at 31F. A weak surface trof over southeast parts of WI/IA will pass se through central IL dry tonight with some patches of mid level clouds with more clouds arriving later this evening and overnight ne of I-74. Surface temperatures will be slightly cooler across the CWA tomorrow.
340 PM EST THU JAN 15 2015 LOW PRESSURE PASSING WELL TO OUR SOUTH WILL SPILL A LITTLE LIGHT SNOW INTO COASTAL AREAS THIS EVENING. AN ARCTIC COLD FRONT WILL CROSS THE REGION ON FRIDAY.
/ISSUED 940 AM CST THU JAN 15 2015/ MUCH OF MID STATE CURRENTLY IN BETWEEN GULF SYSTEM AND UPPER TROUGH DROPPING DOWN FROM NORTHWEST. WITH TEMPS AT OR BELOW FREEZING EXPECT WHERE IT FALLS THE LIGHT PRECIP WILL IMPACT BRIDGES AND OVERPASSES AND THUS TRAVEL.
TEMPERATURES IN NORTH GEORGIA ARE HOVERING A TAD UNDER FORECAST TEMPS AND SO COULD SEE SOME BRIEF CONTINUATION OF THE FREEZING FOG. VERTICAL TEMPERATURE PROFILES KEEP THE LOWER 5-7KFT OF THE ATMOSPHERE ABOVE FREEZING DURING THIS TIME PERIOD SO I AM NOT INCLUDING ANY SNOW IN THE FORECAST ACROSS NORTH GEORGIA WITH THIS SYSTEM. ISOLATED PATCHES OF DENSE FOG ACROSS NORTH GEORGIA WITH TEMPERATURES AROUND FREEZING MAY PRODUCE SOME LIGHT FREEZING FOG. HOWEVER I HAVE ISSUED A SPECIAL WEATHER STATEMENT FOR NORTH GEORGIA FOR THE SMALL POTENTIAL FOR ISOLATED SLICK SPOTS ON BRIDGES AND OVERPASSES.
THUS FAR HAVE ONLY SEEN MONTICELLO ARKANSAS REPORT LIGHT RAIN FROM THESE ECHOES BUT TEMPERATURES ARE JUST ABOVE FREEZING. WITH TEMPERATURES AT OR BELOW FREEZING. TEMPERATURES SHOULD RISE ABOVE FREEZING BY MID-MORNING OR SO CHANGING THE PRECIPITATION OVER TO RAIN.
1221 PM EST THU JAN 15 2015 HIGH PRESSURE OVER THE LOCAL AREA WILL MOVE SOUTHEAST AND WEAKEN OVER THE CAROLINAS BY THIS EVENING. LOW PRESSURE WILL MOVE EAST ACROSS THE NORTHERN GREAT LAKES AND FORCE A TRAILING COLD FRONT TO CROSS THE AREA FRIDAY AFTERNOON.
A DIFFUSE TROUGH AXIS EXTENDED FROM A LOW OVER SW ONTARIO S-SW ACROSS THE EASTERN DAKOTAS INTO EASTERN NEB. THIS COMBINATION SHOULD LEAD TO MUCH WARMER TEMPERATURES THAN YESTERDAY AND HAVE HIGHS FROM AROUND 30 IN THE NORTHEAST TO NEAR 40 IN THE FAR SOUTH. A WEAK COLD FRONT DRIFTS SOUTH. POSSIBLY INTO THE HIGHWAY 20 CORRIDOR TOWARD MORNING RESULTING IN LITTLE MORE THAN A WIND SHIFT FROM W TO NW. STRONG THERMAL GRADIENT WILL EXIST NEAR THE UNITED STATES/ CANADA BORDER AS A LOW PRESSURE SYSTEM TRACK'S ALONG THIS GRADIENT. MAXIMUM TEMPERATURES SHOULD BE SEVERAL DEGREES COOLER COMPARED TO TODAY.
This will mean somewhat above average temperatures will be maintained until mid week, when a dry cold front is progged to move through the region (Tue night), and heights will drop a bit.
302 PM CST THU JAN 15 2015 THE MAIN CHALLENGE WILL BE THE POTENTIAL FOR FREEZING DRIZZLE/MIXED PRECIP THEN SOME SNOW FRI INTO SAT.
MOISTURE WILL DEEPEN ACROSS THE ENTIRE REGION THIS EVENING AND THEREFORE EXPECT TO SEE SOME PATCHES OF MAINLY LIGHT RAIN ACROSS THE AREA OVERNIGHT WITH THE HIGHEST POPS FROM THE INTERSTATE 4 CORRIDOR NORTHWARD.
MUCH QUIETER PATTERN FOR THE NEXT 5 OR 6 DAYS ACROSS THE FORECAST AREA AS HIGH PRESSURE ALOFT BUILDS IN FOR AWHILE.
1254 PM EST THU JAN 15 2015 A COLD FRONT WILL BRING SNOW SHOWERS TONIGHT INTO FRIDAY. PATCHY DENSE FREEZING FOG HAS DISSIPATED. A COLD FRONT MOVING OUT OF THE GREAT LAKES WILL USHER IN ANOTHER ROUND OF SNOW SHOWERS TONIGHT INTO FRIDAY. HIGH PRESSURE RETURNS FRIDAY NIGHT WITH ANOTHER SHOT OF ARCTIC AIR.
TEMPS WILL BE A LITTLE BIT WARMER. WITH PLENTY OF SUNSHINE IN THE FORECAST FOR FRIDAY AS HIGH PRESSURE BUILDS INTO THE AREA.
1030 AM CST THU JAN 15 2015 WV IMAGERY SHOWS POSITIVELY TILTED UPPER TROF MAKING ITS WAY ACROSS OUR REGION ATTM. /ISSUED 639 AM CST THU JAN 15 2015/ AN UPPER LEVEL TROUGH OF LOW PRESSURE APPROACHING FROM THE NORTHWEST WILL PROVIDE AREAS OF LIGHT RAIN OR SPRINKLES EARLY THIS MORNING FOR PARTS OF THE FOUR STATE REGION. HIGH PRESSURE ON THE SURFACE AND ALOFT WILL MOVE OVER THE AREA PROVIDING NORTHWEST WINDS 7-10 KNOTS THROUGH 16/00Z THEN LIGHT AND VARIABLE TO NEAR CALM OVERNIGHT.
A sneak peak into tonight shows the clear skies trend continuing for much of the region with a weak ridge building in late. Otherwise slighty warmer temperatures are expected today compared to yesterday due to weak low level warm air advection across th area and plenty of solar insolation late this morning and afternoon.
COLD FRONT WILL MOVE THROUGH THE REGION TODAY. THE LOW LEVEL BAROCLINIC ZONE WILL GET HUNG UP ACROSS THE WESTERN/SOUTHERN FA TONIGHT AS THE NEXT WAVE APPROACHES IN THE WEST/NORTHWEST FLOW ALOFT. TEMPERATURES TODAY WILL BE DEPENDENT ON THE ACTUAL LOCATION OF THE LOW LEVEL BAROCLINIC ZONE. THE LOW LEVEL BAROCLINIC ZONE WILL ADVECT BACK EASTWARD.
A COLD FRONT WILL MOVE THROUGH TONIGHT BRINGING ONLY A SLIGHT CHANCE OF LIGHT SNOW.
300 PM MST THU JAN 15 2015 AN UPPER LEVEL RIDGE OVER THE NORTHERN AND CENTRAL ROCKIES WILL FLATTEN AS AN UPPER LEVEL TROUGH MOVES OVER THE PACIFIC NORTHWEST. BUT A LITTLE WARMER THAN LAST NIGHT. AS FLOW ALOFT INCREASES AND A LEE SIDE TROUGH DEEPENS.
LATEST RADAR IMAGERY SHOWS LARGE AREA OF LIGHT TO MODERATE RAIN OVERSPREADING THE NORTHERN FL PENINSULA AHEAD OF MID LEVEL S/W TROUGH THAT WILL SWING THROUGH THE REGION LATE TONIGHT. AS THE AXIS OF THE MID LEVEL TROUGH CLEARS FLORIDA FRIDAY. DRIER AND COOLER AIR WILL BEGIN TO WORK DOWN THE PENINSULA. CLOUD COVER WILL DECREASE FROM NORTH TO SOUTH OVER THE REGION DURING THE DAY BUT EVEN WITH MORE SUNSHINE TEMPS WILL REMAIN COOLER THAN NORMAL WITH HIGHS IN THE 60S. A WEAK SHORT WAVE TROUGH WILL SLIDE EWD FROM TX ACROSS THE GULF COAST STATES THROUGH SAT NIGHT.
FOR TODAY AND UPR RIDGE BUILDS OVR THE STATE FROM THE WEST WITH TEMPS ALOFT WARMING AND DRY CONDITIONS. WITH UPPER 40S TO MID 50S ALONG THE I-25 CORRIDOR AND SERN PLAINS AND IN THE UPPER 30S TO MID 40S OVER THE HIGH VALLEYS.
1216 PM EST THU JAN 15 2015 HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY. LOW PRESSURE TRACKING NORTH OF THE REGION WILL PULL A WARM FRONT ACROSS THE STATE THIS EVENING FOLLOWED BY A COLD FRONT ON FRIDAY. CURRENTLY INVERTED TROUGH EXTENDS WESTWARD FROM OCEAN LOW INTO THE GULF OF MAINE. THIS EVENING THE TROUGH BECOMES MORE ACTIVE WITH SOME LIGHT SNOW POSSIBLE ACROSS THE SOUTHEASTERN PORTION OF THE FORECAST AREA AND ALONG COASTAL SECTIONS. LATE TONIGHT A STRONG COLD FRONT APPROACHES FROM THE NORTHWEST. LOW PRESSURE TRACKING THROUGH CENTRAL QUEBEC WILL PULL A COLD FRONT ACROSS THE AREA ON FRIDAY.
1055 AM CST THU JAN 15 2015 SURFACE AND UPPER-LEVEL HIGH PRESSURE WILL ALLOW FOR VFR CONDITIONS ACROSS AREA TERMINALS THROUGH 16/18Z.