Aikyam-Lab/Synoptic-Bench huggingface dataset:
1128 PM CST FRI JAN 16 2015 /06Z TAFS/ COLD FRONT HAS STARTED PUSHING INTO NORTHWESTERN KANSAS AND GIVEN THE TIMING OF THIS FRONT. A COLD FRONT IS STILL ON TRACK TO PUSH ACROSS THE AREA OVERNIGHT. LEADING TO RENEWED ALBEIT NORTHERLY WINDS FOR SATURDAY ALONG WITH SLIGHTLY COOLER HIGH TEMPERATURES. A COLD FRONT WILL PUSH ACROSS THE TERMINALS DURING THE OVERNIGHT HOURS. /ISSUED 317 PM CST FRI JAN 16 2015/ A SURFACE LEE TROUGH HAS DEEPENED ACROSS THE CENTRAL AND SOUTHERN HIGH PLAINS TODAY BENEATH A PERTURBED QUASI-ZONAL FLOW OVER THE WESTERN HALF OF THE CONUS. FORCING A SURFACE COLD FRONT SOUTH THROUGH THE PANHANDLES EARLY SATURDAY MORNING.
1247 AM EST SAT JAN 17 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
254 AM CST Sat Jan 17 2015 A cold front will move through the region this afternoon and while this won't be a huge temperature altering event, it does make the forecast a little more challenging for several reasons.
TODAY THROUGH SUNDAY NIGHT CURRENT SURFACE MAP SHOWS COLD FRONT MOVING THROUGH WESTERN SOUTH DAKOTA.
THE NEW 00Z NAM GUIDANCE IS WARMER THAN SOME FORECAST LOWS. /ISSUED 359 PM CST FRI JAN 16 2015/ SFC RIDGING HAS NOW SETTLED SE INTO WRN AL/CNTRL MS/CNTRL LA INTO SE TX THIS AFTERNOON. WILL BE EYEING THE NEXT COLD FRONT SET TO ENTER OUR NW ZONES SATURDAY EVENING. SHOULD SEE THE SKY CLEAR ONCE AGAIN FOR SUNDAY AS SFC RIDGING QUICKLY BUILDS SE INTO THE AREA.
A COOLER AIR WILL BE IN PLACE WITH HIGH TEMPERATURES MAINLY IN THE MID 30S TO LOWER 40S. NORTHWEST WINDS BEHIND THE COLD FRONT THAT IS EXITING OFF TO THE EAST SUNDAY MORNING.
UPPER LEVEL TROF WILL APPROACH THE REGION BY DAYBREAK. IN THE NORMALLY WARMER AREAS MIXED RAIN/SNOW SHOWERS COULD OCCUR.
1247 AM EST SAT JAN 17 2015 HIGH PRESSURE BUILDING INTO THE REGION TONIGHT WILL MOVE OFFSHORE SATURDAY. AN UPPER LEVEL DISTURBANCE AND COLD FRONT CROSSING THE AREA SATURDAY NIGHT INTO SUNDAY WILL BRING ANOTHER CHANCE FOR SHOWERS. OVERNIGHT LOWS SHOULD BE AT OR JUST BELOW THE FREEZING MARK. EXPECT SATURDAY TO BE MOSTLY SUNNY AND DRY AS A WEAK UPPER LEVEL RIDGE MOVES ACROSS THE REGION THROUGH THE DAY. THIS WILL TRIGGER AN AREA OF LOW PRESSURE TO FORM OFF THE ATLANTIC COAST. THE MAIN UPPER TROUGH DEEPENS THROUGH THE DAY SUNDAY. TEMPERATURES SUNDAY MAY ACTUALLY BE WARMER.
HIGH PRESSURE WILL REMAIN OVER THE REGION FOR THE NEXT SEVERAL DAYS. A BUILDING HIGH PRESSURE RIDGE AND A STRENGTHENING INVERSION COULD CAP MUCH OF THIS MOISTURE AND LEAD US BACK TO A LOW STRATUS REGIME IN MUCH OF THE SJ VLY FOR THE WEEKEND.
338 AM CST Sat Jan 17 2015 A cold front will move south through the region today, with somewhat breezy north winds in its wake for this afternoon (particularly across Permian Basin region).
A WARM FRONT WILL LIFT TO THE NORTHEAST ACROSS THE AREA TODAY AND TONIGHT. IT WILL BE THE MOISTURE ALONG THE WARM FRONT THAT WILL BRING PRECIPITATION TO OUR AREA. THE SNOW LEVELS WILL CONTINUE TO RISE BEHIND THE WARM FRONT AS THE SNOW IS EXPECTED TO CHANGE TO RAIN IN MCCALL BY MIDNIGHT. WE ARE NOT EXPECTING ANY SNOW OR EVEN A RAIN/SNOW MIX IN THE LOWER VALLEYS /INCLUDING THE TREASURE AND WESTERN MAGIC VALLEYS/ WITH THIS EVENT AS THE SNOW LEVELS WILL RISE TO WELL ABOVE VALLEY FLOORS. TEMPERATURES WILL BE MILDER ON SUNDAY AS WARMER AIR WORKS IN BEHIND THE WARM FRONT.
It will be a mild and breezy day today as a cold front will approach the area late this afternoon. The upper level flow shifts again by mid week with a trough digging across the Midwest and Great Lakes Region.
349 AM EST SAT JAN 17 2015 HIGH PRESSURE AND WARMER SATURDAY. A COLD FRONT CROSSES ON SUNDAY WITH UPSLOPE SUNDAY NIGHT.
HIGH PRESSURE LINGERING OVER THE AREA IS BRINGING CLEAR SKIES AND RELATIVELY CALM WINDS TO THE AREA. THE CALM WINDS AND COOLER TEMPS MAY ALLOW FOR FOG DEVELOPMENT MAINLY FOR KCSV AND KCKV.
1240 AM EST SAT JAN 17 2015 /ISSUED 820 PM EST FRI JAN 16 2015/ WEAK HIGH PRESSURE WILL CONTINUE ACROSS THE REGION OVERNIGHT. AS THE LOW LEVEL FETCH SHIFTS TO HAVING A SOUTHERN COMPONENT LATE SATURDAY INTO THE OVERNIGHT. OTHERWISE NEXT AMPLIFYING TROUGH WITH SOME MOISTURE ENHANCEMENT APPROACHES THE FAR NORTH PART OF THE CWA BY EARLY SUNDAY MORNING.
A FEW FAIR WEATHER CUMULUS (BASES ~ 2 KFT) POSSIBLE BY SATURDAY AFTERNOON AS HIGH PRESSURE MOVES EAST AND A LIGHT SOUTHEAST FLOW DEVELOPS.
A cold front will shift should decrease by sunset. Overnight, an upper trough currently over the PacNW will dig into the Midwest, and drop a weak cold front into the region, w/buffer soundings putting fropa at KMAF around 17Z. Still, temp progs suggest afternoon highs Saturday will remain well abv normal, and a few degrees warmer than today's.
1059 PM CST Fri Jan 16 2015 Warm and dry weather occurred today with high pressure off to the south and low pressure moving into the High Plains. A zonal upper level flow pattern changes a bit with some eastern Pacific ridging allowing colder air to drop south into the area, but not overly cold.
1144 PM CST Fri Jan 16 2015 Another afternoon with little to talk about as tranquil and unseasonably warm conditions prevail over the lower Missouri Vly. a weak cold front will swing across the area early to mid morning on Saturday. With strong sfc ridging cutting off any return flow from the GOM. continued warm air advection ahead of the front overnight will prevent temps from falling below freezing along and south of I-70. all statistical model guidance shows a normal diurnal temp curve through the afternoon with highs climbing up into the lower to middle 50s for most areas.
COOL CANADIAN HIGH PRESSURE WILL BUILD OVER THE REGION TODAY, BRINGING FAIR WEATHER, LIGHT WINDS, AND SLIGHTLY BELOW NORMAL TEMPERATURES. UPPER LEVEL TROF WILL APPROACH THE REGION BY DAYBREAK. IN THE NORMALLY WARMER AREAS MIXED RAIN/SNOW SHOWERS COULD OCCUR.
1130 PM EST FRI JAN 16 2015 ARCTIC HIGH PRESSURE WILL BUILD IN FROM THE WEST TONIGHT AND SATURDAY. A WARM FRONT CROSSES NEW ENGLAND SATURDAY NIGHT.
BREEZY CONDITIONS WILL RETURN DURING THE AFTERNOON HOURS AHEAD OF AN APPROACHING COLD FRONT. NO PRECIPITATION WILL ACCOMPANY THE PASSAGE OF THE COLD FRONT. COLD FRONT SEEN LATER SATURDAY NIGHT TO SUNDAY AND DUE TO LACK OF MOISTURE.
A SPRAWLING HIGH PRESSURE SYSTEM IS DOMINATING THE SOUTHERN US WITH CLEAR SKIES AREA-WIDE. TEMPERATURES WILL LIKELY BE A FEW DEGREES WARMER AS STRONGER SOUTHWEST WINDS WILL PROMOTE GOOD MIXING FROM 850 MB AND REALIZE WARMER TEMPS ALOFT. A MOSTLY DRY FRONTAL PASSAGE WILL OCCUR AS A LOW PRESSURE SYSTEM MOVES EAST ALONG THE SOUTHERN PROVINCES OF CANADA. HIGH LEVEL CLOUDS WILL INCREASE AND OVERSPREAD THE TAF SITES LATER SATURDAY AFTERNOON AND EVENING AHEAD OF A COLD FRONT.
WEAK COLD FRONT MOVG INTO KS WILL BRING LITTLE CHANGE TO WX ASIDE FROM SOME UPPER LVL CLOUDS SAT NIGHT INTO SUNDAY. SOUTHERN STREAM JET TO BRING MOSTLY MID LVL MOISTURE BACK INTO AREA LATER IN WEEK AS ANOTHER WEAK COLD FRONT MOVES SOUTH THRU AREA AND PHASES WITH JET.
A WEAK COLD FRONT TNT WL LOWER HIGHS ON SUNDAY CLOSER TO NORMAL MID JANUARY VALUES.
LOW PRESSURE WILL CONTINUE TO TRACK ALONG THE CANADIAN BORDER TODAY AND TNT WHILE THE UPPER TROUGH OVER THE NRN PLAINS DIGS SEWD INTO THE GREAT LAKES AND OHIO RIVER VALLEY FOR TNT. THE 50KT LOW LEVEL JET AND LOW TO MID LEVEL THERMAL RIDGE WILL SHIFT EWD BY THIS AFTERNOON WITH A COLD FRONT ENTERING THE WRN CWA. THE COLD FRONT SHOULD MAKE IT TO LAKE MI BY EVENING. SO STILL LOOKING AT HIGHS IN THE LOW TO MID 30S.
311 AM CST SAT JAN 17 2015 AN UPPER LEVEL TROUGH CURRENTLY EXTENDING FROM MANITOBA TO COLORADO WILL DEEPEN TODAY WHILE SHIFTING EAST ACROSS THE PLAINS. A COLD FRONT WILL PUSH SOUTHEAST THROUGH THE SOUTHERN PLAINS AND THEN NORTH AND CENTRAL TEXAS LATER TODAY. WITH A FEW SPOTS APPROACHING THE FREEZING MARK. SLIGHTLY WARMER CONDITIONS ARE EXPECTED SUNDAY NIGHT AS LIGHT SOUTH WINDS RETURN.
ANOTHER UPPER LEVEL TROUGH WILL FORCE A DRY COLD FRONT INTO AND THROUGH THE FORECAST AREA LATE TONIGHT INTO EARLY SUNDAY MORNING.
THIS EVENING THROUGH SATURDAY NIGHT 21Z SURFACE ANALYSIS HAD LOW PRESSURE OVER CENTRAL SK WITH COLD FRONT INTO NORTHERN ID. COLD FRONT WILL ENTER CWA LATE THIS EVENING AND SLICE THROUGH THE CWA THROUGH EARLY SATURDAY MORNING. PARTICULARLY OVER THE HIGHER TERRAIN. WEAK HIGH PRESSURE SLIDES INTO THE FOUR CORNERS AREA WITH DECENT WESTERLY GRADIENT ACROSS WESTERN PORTIONS OF THE CWA.
BUT THEN WARMER TEMPERATURES MOVE IN FOR SUNDAY. A LOW PRESSURE SYSTEM WILL MOVE INTO THE REGION LATE SUNDAY AND SUNDAY NIGHT AND BRING WIDESPREAD PRECIPITATION TO THE AREA. STILL EXPECT TEMPS TO DROP OVERNIGHT AS THE CLOUD COVER SHOULD DISSIPATE AND WITH WIND CHILLS ALREADY IN THE -10 TO -20 RANGE IN THE LOWER ELEVATIONS THE ADVISORIES AND WARNINGS SHOULD PAN OUT FAIRLY WELL.
142 AM CST Sat Jan 17 2015 Low pressure riding along the Canadian border will move into the Great Lakes by this evening. As it does, it drops down the bulk moisture over the High plains, resulting in increasingly cloudy skies for us. Pops drop off after midnight as the primary Long Wave trof moves just east of our area.
Temperatures are mostly ranging in the upper 20s and low 30s across the area at this hour, however a few cool spots have really radiated out and can be found in the low and mid 20s. Will leave mention of some patchy fog across the area this morning, and continue to monitor for any freezing fog problems if it hangs on longer than expected toward dawn. Expecting highs to mostly range between 50 to 55 degrees, with the higher values across south central KY. These numbers are closer to the GFS guidance than the much cooler NAM guidance. A trough axis and associated cold front will swing through the area late tonight through dawn tomorrow. The trough axis quickly scoots east Sunday morning, with any lingering morning rain confined to the east.
However, the increasing southerly winds will help keep temperatures quite a bit milder than they were last night, and also help keep the low levels of the atmosphere mixed up better. 1026 mb high pressure over central Ontario and ridging southward across the Ohio & TN river valleys will slip off to the east and continue fair wx over IL tonight. Models have trended a bit warmer behind the frontal passage on Sunday with our low level flow more westerly than northwest, and 925-850 mb temperature profiles a few degrees warmer than what we saw yesterday.
HIGH PRESSURE NORTH OF THE AREA IS STILL EXPECTED TO PUSH EAST AND INTO THE WESTERN ATLANTIC USHERING IN NORTHEASTERLY WINDS FOR THE EAST COAST SITES LATER IN THE MORNING. PLEASANT CONDITIONS ARE EXPECTED OVERNIGHT WITH CLEAR SKIES AND LOW TEMPERATURES RANGING FROM THE UPPER 40S WSW OF LAKE OKEECHOBEE TO THE LOWER 60S ALONG THE SE FLORIDA COAST. /ISSUED 352 PM EST FRI JAN 16 2015/ A COLD FRONT MOVED THROUGH THE REGION EARLY THIS MORNING. HIGH PRESSURE WILL BUILD EASTWARD. TEMPERATURES TONIGHT WILL BE SLIGHTLY COOLER. HIGH PRESSURE WILL PUSH INTO THE WESTERN ATLANTIC ON SATURDAY. AND TEMPERATURES WILL WARM BACK INTO THE LOW/MID 70S. A LARGER TROUGH WILL PUSH INTO THE SOUTHEAST SATURDAY NIGHT INTO SUNDAY. AND ANOTHER COLD FRONT WILL PUSH SOUTHWARD THROUGH SOUTH FLORIDA SUNDAY AFTERNOON.
A decent southerly flow at the surface will persist thru tonight and will make sites that drop below freezing in the minority, with most expected to bottom out in the mid 30s.
1141 PM CST FRI JAN 16 2015 WARM FRONT EXPECTED TO LIFT NORTH THROUGH THE AREA OVERNIGHT AS LOW PRESSURE SHIFTS EAST ALONG THE CANADIAN BORDER. ANY FOG WOULD BE FAVORED NORTH OF WARM FRONT OR NEAR/NORTH OF I-80 LATE THIS EVENING INTO THE OVERNIGHT BEFORE FRONTAL PASSAGE. PRETTY MUCH NEAR STEADY TO RISING FROM HERE ON OUT WITH WARM FRONTAL PASSAGE AND INCREASING HIGH CLOUDINESS. 12Z UA ANALYSIS HAS AN UPPER LEVEL DISTURBANCE ACROSS THE PLAINS WITH AN 850MB RIDGE OVER THE WESTERN GREAT LAKES. 18Z SFC ANALYSIS HAS A COLD FRONT FROM CENTRAL OHIO INTO SOUTHWEST WISCONSIN. A WARM FRONT RAN FROM A LOW NEAR KFSD INTO SOUTHEAST IOWA. THE WARM FRONT WILL SLOWLY MOVE THROUGH THE AREA TONIGHT SO THERE SHOULD BE AN INITIAL DROP IN TEMPERATURES THIS EVENING FOLLOWED BY STEADY OR VERY SLOWLY RISING TEMPERATURES OVERNIGHT.
424 AM EST SAT JAN 17 2015 A WARM FRONT WILL CONTINUE TO LIFT NORTH OF THE REGION TODAY. PROVIDING INCREASED SOUTHERLY WINDS AND NOTICEABLY WARMER TEMPERATURES. HIGHS TODAY WILL GENERALLY BE IN THE LOWER 40S. 5 G/KG PER RUC/NAM PRECEDENT TO FROPA/TROF PASSAGE OF HIGH BELTED NRN UPR GRTLKS. SHARP MID LEVEL TROUGH OVER THE AREA TO START GRADUALLY EXITS EAST ON SUNDAY WITH ADEQUATE MOISTURE DEPTH/CYCLONIC FLOW/STEEPENING LOW LEVEL LAPSE RATES WITHIN CAA REGIME TO SUPPORT A FEW SNOW SHOWERS THROUGH MID AFTN (ESPECIALLY NORTH GIVEN SOME LAKE ENHANCEMENT).
1235 AM EST SAT JAN 17 2015 A MOSTLY DRY COLD FRONT STALLS IN NORTHERN WEST VIRGINIA OVERNIGHT. BEFORE RETREATING NORTH AS A WARM FRONT ON SATURDAY. A COLD FRONT CROSSES ON SUNDAY. A COLD FRONT WILL PASS THROUGH OVERNIGHT SATURDAY AND INTO SUNDAY BRINGING A CHANCE RAIN SHOWERS. THE RAIN WILL TRANSITION TO SNOW OVERNIGHT ON SUNDAY AS THE TEMPERATURES DROP BEHIND THE COLD FRONT.
352 AM EST SAT JAN 17 2015 HIGH PRESSURE MOVES INTO EAST INTO THE REGION TODAY BEFORE SHIFTING OFFSHORE TONIGHT. PRECIPITATION BEGINS TO SPREAD INTO NEW ENGLAND SUNDAY AS LOW PRESSURE ORGANIZES AND MOVES NORTH ALONG THE ATLANTIC COASTLINE.
A SOUTHERLY WIND WILL SHIFT TO THE NORTHWEST SATURDAY MORNING BEHIND A COLD FRONT. COLD FRONT WILL ENTER NORTHWEST OKLAHOMA 10-12Z AND PROGRESS QUICKLY SOUTHWARD OVER TERMINALS THROUGH 18Z. A WEAK DRY COLD FRONT.
HIGH PRESSURE IS IN PLACE ACROSS THE AREA AT THE SURFACE THIS MORNING WITH NEAR ZONAL FLOW ALOFT. THE HIGH PRESSURE CENTER WILL LIFT OUT TO THE NE TODAY AS CLOUDS AND MOISTURE INCREASE ACROSS THE AREA. LOW TEMPERATURES WILL BE IN THE MID 40S NORTH TO THE LOWER 50S INLAND TO NEAR 60 ALONG THE COAST CENTRAL AND SOUTHERN ZONES. HIGH PRESSURE WILL THEN BUILD INTO THE AREA FROM THE WEST FOR SUNDAY AS THE UPPER TROUGH SWINGS THROUGH THE REGION.
1125 PM CST FRI JAN 16 2015 VFR WITH SW WINDS TURNING NW BY DAYBREAK AHEAD OF A COLD FRONT.
OBS ARE RUNNING A FEW DEGREES WARMER THAN THE HOURLY GRIDS. LAV GUIDANCE HAS COME IN JUST A LITTLE BIT WARMER IN A FEW AREAS SO WILL BLEND THOSE NUMBERS WITH THE PREVIOUS FORECAST. HIGH PRESSURE RIDGE WILL ALLOW FOR DRY CONDITIONS AND VFR FOR THE MOST PART ACROSS CENTRAL ALABAMA. AS TEMPERATURES HAVE BEEN ABLE TO RISE INTO THE LOWER 50S NORTH TO THE MID AND UPPER 50S SOUTH. ANOTHER SUNNY DAY IS EXPECTED ON SATURDAY WITH EVEN WARMER TEMPERATURES IN THE UPPER 50S AND LOWER 60S WITH RISING HEIGHTS.
TODDY'S UPPER LEVEL PATTERN WILL FEATURE A WEAK RIDGE AXIS THIS MORNING OUT AHEAD OF AN ADVANCING WEAK BUT DRY WAVE. I AM EXPECTING TEMPS TO BE SEVERAL DEGREES WARMER THAN YESTERDAY. POPS WILL BE ON THE LOW SIDE HOWEVER AS MANY AREAS MAY ONLY SEE A TRACE OF RAINFALL. THE PREVAILING NEW AIRMASS WILL BE RATHER MILD AND WILL TAKE THE FORM OF WEAK HIGH PRESSURE OVER THE GULF COAST.
328 AM CST SAT JAN 17 2015 FINALLY SOME WARMER TEMPERATURES ACROSS THE MIDSOUTH.
1236 AM EST SAT JAN 17 2015 HIGH PRESSURE WILL GIVE THE AREA A VERY COLD NIGHT ALONG WITH SCATTERED FLURRIES SOUTHEAST OF LAKE ONTARIO. UPPER LEVEL TROF WILL APPROACH THE REGION BY DAYBREAK. IN THE NORMALLY WARMER AREAS MIXED RAIN/SNOW SHOWERS COULD OCCUR.
859 PM PST FRI JAN 16 2015 After a brief break in the rainy and snowy weather tonight, a wet and warmer storm system will arrive Saturday and persist through Sunday delivering valley rain and mountain snow. Locally heavy snow is possible over the higher mountains.
WENT WARMER SUN WITH GOOD INSOLATION AND DOWNSLOPE FLOW AS WINDS BACK DURING THE DAY. MON: COOLER AIR BEHIND ANOTHER FRONT WILL DROP TEMPERATURES SLIGHTLY. THERE IS MORE UNCERTAINTY IN HIGHS IN SOUTHEAST KS WHERE ECMWF IS A BIT COOLER.
THIS PRECIP IS ALL FREEZING RAIN AND WILL QUICKLY MOVE EAST OVER THE NEXT COUPLE OF HOURS. TEMPERATURES ARE RAPIDLY RISING TO ABOVE FREEZING BEHIND THESE ENHANCED ECHOES. WITH LOW LEVEL MOISTURE EXPECTED TO REMAIN IN PLACE THIS EVENING YET BEFORE THE WARM FRONT MOVES THROUGH. ATTENTION THEN TURNS TO THE STRONG WINDS DEVELOPING SATURDAY AS LOW PRESSURE MOVES EAST ALONG THE CANADIAN BORDER.
336 AM CST SAT JAN 17 2015 A WEAK UPPER LEVEL TROUGH IS CURRENTLY MOVING TO THE EAST ACROSS THE SOUTHERN MISSISSIPPI VALLEY. HIGH PRESSURE CONTINUES TO MOVE OFF OF THE ATLANTIC COAST. AN UPPER LEVEL TROUGH. THE COLD FRONT SHOULD PASS THROUGH THE AREA BY DAYBREAK ON SUNDAY. UPPER LEVEL RIDGING WILL BUILD IN BEHIND THIS TROUGH. WITH HIGH PRESSURE DEVELOPING ALONG THE GULF COAST. THE NORTHERLY WINDS BEHIND THE WEAK COLD FRONT WILL QUICKLY SHIFT TO THE SOUTH BY SUNDAY NIGHT.
337 AM EST SAT JAN 17 2015 THE COLD FRONT WHICH SWEPT ACROSS SOUTH FLORIDA YESTERDAY HAS USHERED IN A NOTICEABLE CHANGE IN AIRMASS WITH DEWPOINTS IN THE UPPER 40S FROM NAPLES TO THE LAKE OKEECHOBEE REGION TO THE 50S SOUTHEAST. THE TRAILING COLD FRONT IS FORECAST TO MOVE ACROSS SOUTH FLORIDA SUNDAY AFTERNOON.
LOW LEVEL ANTICYCLONIC FLOW IS HELPING TO BREAK UP THE LOWER CLOUD DECK SOMEWHAT ACROSS THE SOUTHWEST HALF OF THE CWA. WITH A WARM FRONT LIFTING BACK INTO THE CWA BY SATURDAY. NEXT PUSH OF COLD AIR ARRIVES SUNDAY WITH A COLD FRONT. TROUGH. PRECIPITATION MAY START AS ALL SNOW ALONG THE RIDGES AND NORTH OF I-80 BEFORE CHANGING OVER BEFORE RAIN MIXES IN SUNDAY MORNING.
333 AM CST SAT JAN 17 2015 COLD FRONT CURRENTLY FROM CENTRAL KS THROUGH NW OK WILL SWEEP THROUGH THE FORECAST AREA TODAY WITH MINIMAL EFFECT ON HIGH TEMPS.
330 AM CST SAT JAN 17 2015 HIGH PRESSURE RIDGE AT THE SURFACE EXTENDS FROM QUEBEC TO THE MISSISSIPPI COAST. HIGH PRESSURE WILL CONTINUE TO MOVE EASTWARD TODAY.
1030 PM CST FRI JAN 16 2015 WARMING AND DRYING FLOW SHOULD GRADUALLY EAT INTO THE LOW CLOUD DECK TRAPPED BENEATH THE INVERSION IN THE FAR NORTHEAST PART OF OUR AREA IN SOUTHWEST MINNESOTA TONIGHT. SATURDAY WILL BRING A QUICK PASSAGE OF THE TROUGH/FRONT WITH TEMPERATURES WARMING SOME MORE IN THE MORNING WITH THE MIXING. AN AREA OF LOW LEVEL MOISTURE AND INSTABILITY ASSOCIATED WITH THE UPPER TROUGH WILL ALSO PASS. WITH WEST-SOUTHWEST LOW LEVEL FLOW AND DIMINISHING SNOW COVER AIDING IN MIXING SOME OF THE WARMER TEMPERATURES ALOFT DOWN TO THE SURFACE.
1040 PM CST FRI JAN 16 2015 FOR 06Z TAFS /ISSUED 849 PM CST FRI JAN 16 2015/ TEMPS ATTM ARE IN THE LOW/MID 30S WITH DEWPOINTS MAINLY IN THE UPPER 20S. WILL KEEP PATCHY FREEZING FOG IN FCST BUT DONT THINK IT WILL BE AS WIDESPREAD OR THICK AS LAST NIGHTS. HOWEVER ANOTHER UPPER TROF/CDFNT WILL BRING MORE MID/HIGH CLOUDS ARND 00Z SATURDAY EVENING.
WINDS WILL SHIFT FROM WESTERLY TO NORTHERLY TONIGHT AS A WEAK COLD FRONT PASSES THROUGH SOUTH FLORIDA. DRY AIR WILL BE REINFORCED THIS WEEK BY A PAIR OF COLD FRONTS. WEAK COLD FRONT WILL SILENTLY PASS THROUGH SOUTH FLORIDA TONIGHT.
607 PM EST TUE JAN 27 2015 LOW PRESSURE OFF CAPE COD WILL CONTINUE TO GRADUALLY MOVE NORTHEAST OVERNIGHT.
THE MARQUEZ RAWS AT 2500 FEET IN SAN BENITO COUNTY REPORTED THE HIGHEST TOTAL AT THREE TENTHS OF AN INCH. THE LONGWAVE RIDGE OVER THE AREA WILL REMAIN KEEPING WEATHER DRY AND MILD.
910 PM EST TUE JAN 27 2015 INTENSE LOW PRESSURE NR CAPE COD THIS EVENING WILL LIFT NORTHEAST OVERNIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION FOR WED.
322 PM MST TUE JAN 27 2015 THE UPPER RIDGE AXIS HAS SHIFTED EAST OF COLORADO. COOLER AIR WILL BEGIN MOVING INTO NORTHERN COLORADO AS THE LEE TROUGH IN PLACE THIS AFTERNOON MOVES EASTWARD.
THE PCPN WAS SPREADING NNE AS A WEAK UPPER LOW IN NRN NV MOVES TOWARD YELLOWSTONE BY MIDNIGHT. AND THEN INTO MONTANA OVERNIGHT AS A WEAKENING OPEN TROUGH. HIGH PRESSURE ALOFT WILL REBUILD BEHIND THE DEPARTING TROUGH.
513 PM PST TUE JAN 27 2015 UPDATED AVIATION SECTION HIGH PRESSURE WILL BUILD INTO THE REGION BY MIDWEEK RESULTING IN WARMING TEMPERATURES AND DECREASING CLOUDINESS.
701 PM EST TUE JAN 27 2015 HIGH PRESSURE WILL CONTINUE TO BUILD IN FROM THE WEST TONIGHT AND MOVE EAST ON WEDNESDAY.
ANOTHER QUIET NIGHT IS IN STORE ACROSS SOUTH TEXAS WITH HIGH PRESSURE OVER THE WESTERN GULF OF MEXICO. THE UPPER LEVEL RIDGE AXIS WILL REMAIN WEST OF THE REGION THROUGH THE PERIOD.
WINDS WILL REMAIN LIGHT OVERNIGHT WITH TEMPERATURES FALLING THROUGH THE LOWER 30S AND 20S AND EVENTUALLY BOTTOMING OUT IN THE LOW TO MID TEENS BY EARLY WEDNESDAY MORNING. SKIES WILL EVENTUALLY CLEAR OUT TONIGHT ALLOWING SURFACE TEMPS TO BOTTOM OUT INTO THE LOWER TEENS. SOME CONCERN HERE IS WITH ANY FREEZING OR SUB FREEZING VALLEY TEMPERATURES AS THE RAIN MOVES INTO THE AREA. TEMPS WILL WARM JUST ENOUGH WHERE FREEZING PRECIP WONT BE A THREAT AND IF THE COLUMN DOES WET BULB.
953 PM EST TUE JAN 27 2015 HIGH PRESSURE WILL CONTINUE TO BUILD IN FROM THE WEST TONIGHT AND MOVE EAST ON WEDNESDAY.
/ISSUED 247 PM CST TUE JAN 27 2015/ RIDGING ACROSS THE AREA WILL QUICKLY TRANSITION TO SOUTHWESTERLY FLOW ALOFT THIS EVENING AS AN UPPER LEVEL DISTURBANCE TRANSLATES EASTWARD FROM NORTHERN NEVADA INTO THE CENTRAL PLAINS.
FRONTAL TROUGH SLIDING SOUTHEAST OVER THE ATLANTIC WILL ALLOW NORTH/SOUTH ORIENTED HIGH PRESSURE RIDGE TO PUSH TOWARDS THE EASTERN PART OF THE COUNTRY AND INDUCE A NORTHERLY WIND FLOW OVER THE AREA LATE TONIGHT AND WED. LITTLE CHANGE IS INDICATED IN TEMPERATURES WITH LOWS TONIGHT IN THE LOWER/MID 40S AND HIGHS WED IN THE LOWER/MIDDLE 60S. WINDS BEHIND FRONTAL TROUGH SLIDING SOUTHEAST OVER THE ATLANTIC WILL TURN MORE NORTHERLY OVERNIGHT.
647 PM EST TUE JAN 27 2015 INTENSE LOW PRESSURE NR CAPE COD THIS EVENING WILL LIFT NORTHEAST OVERNIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION FOR WED.
HIGH PRESSURE (1027 MILLIBARS) WAS BUILDING SOUTHWARD FROM THE GREAT LAKES STATES. DEEP TROUGHING PREVAILS OVER THE EASTERN THIRD OF THE NATION. HIGH PRESSURE WILL BUILD OVER THE OHIO VALLEY ON WEDNESDAY.
CHATTANOOGA AIRPORT, TN 27 48 32 54 / 0 0 10 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 21 44 28 50 / 0 0 10 40 OAK RIDGE, TN 23 43 30 49 / 0 0 10 40 TRI CITIES AIRPORT, TN 16 39 24 46 / 10 0 10 40.
40 DEWPOINTS WERE RISING INTO THE LOWER 50S ALONG THE NEARSHORE WATERS. WITH THE WATER TEMPERATURE ALSO IN THE LOWER 50S.
700 PM EST TUE JAN 27 2015 AVIATION AN AREA OF HIGH PRESSURE SITUATED OVER THE GREAT LAKES REGION WILL KEEP THE WEATHER DRY THROUGH WEDNESDAY.
1016 PM EST TUE JAN 27 2015 LOW PRESSURE BETWEEN CAPE COD AND NOVA SCOTIA WILL CONTINUE TO GRADUALLY MOVE NORTHEAST OVERNIGHT. HIGH PRESSURE OVER THE MISSISSIPPI VALLEY WILL BUILD INTO THE CAROLINAS THROUGH WEDNESDAY INTO WEDNESDAY NIGHT.
A COLD FRONT WILL MOVE ACROSS THE TERMINAL SITES LATE WEDNESDAY MORNING INTO THE AFTERNOON HOURS.
ISSUED BY NATIONAL WEATHER SERVICE HASTINGS NE 559 PM CST TUE JAN 27 2015 QUIET WEATHER CONDITIONS WILL CONTINUE AS UPPER RIDGING MOVES TOWARD THE CENTRAL PLAINS TONIGHT.
The 7 pm EST regional surface analysis showed a couple of northeast- southwest oriented troughs across the Southeast, but the pressure gradient was weaker than 24 hours ago. The combination of light winds and a cool, dry airmass will allow temperatures to fall into the mid 30s in our normally coldest inland sites; with a few spots perhaps briefly reaching freezing around sunrise.
709 PM EST TUE JAN 27 2015 LOW PRESSURE OFF CAPE COD WILL CONTINUE TO GRADUALLY MOVE NORTHEAST OVERNIGHT.
FOR 00Z AVIATION FORECAST 1026 MBAR HIGH CENTERED OVER LAKE MICHIGAN THIS EVENING RIDGING DOWN THROUGH THE OHIO AND TENNESSEE VALLEYS.
1051 PM EST TUE JAN 27 2015 INTENSE LOW PRESSURE NR CAPE COD THIS EVENING WILL LIFT NORTHEAST OVERNIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION FOR WED.
824 PM EST TUE JAN 27 2015 INTENSE LOW PRESSURE NR CAPE COD THIS EVENING WILL LIFT NORTHEAST OVERNIGHT. HIGH PRESSURE WILL BUILD OVER THE REGION FOR WED.
908 PM EST TUE JAN 27 2015 THE ROBUST UPPER LEVEL LOW NEAR THE NEW ENGLAND COAST CONTINUES TO ;LIFT OUT TO THE NORTH. A LARGE AREA OF HIGH PRESSURE IS SLIDING EASTWARD ACROSS THE GULF OF MEXICO. WINDS ARE HIGHER ON THE UPPER KEYS THAN THE LOWER LIKELY DUE TO THE COLD AIR DRAINING OFF THE MAINLAND. THE TRAILING RIDGE WILL MOVE OVER THE GULF WILL BE ABSORBED BY A LARGER AREA OF HIGH PRESSURE MOVING INTO THE OHIO RIVER VALLEY. A TROUGH WILL SPREAD EASTWARD ACROSS THE FRONT RANGE WEDNESDAY NIGHT FRAGMENTING THE RIDGE IN THE EAST. WHILE THE TROUGH TREKS EASTWARD THE SOUTHERN FRAGMENT OF THE RIDGE WILL MOVE SOUTHWARD OVER THE FLORIDA PENINSULA.
641 PM EST TUE JAN 27 2015 HIGH PRESSURE AND A DRY AND COLD AIRMASS WILL PUSH ACROSS THE AREA TONIGHT AND WEDNESDAY.