Aikyam-Lab/Synoptic-Bench huggingface dataset:
A SMALL LOW PRESSURE SYSTEM MOVING ACROSS THE MOHAVE DESERT AND ARIZONA TODAY WILL LEAD TO A CHANCE OF SHOWERS OVER MAINLY NORTHERN ARIZONA. STRONG NORTHERLY WINDS WILL DEVELOP OVER THE LOWER THE COLORADO RIVER VALLEY AND ADJACENT AREAS. TEMPERATURES REBOUND OVER THE WEEKEND AS HIGH PRESSURE BUILDS IN. BETTER OPPORTUNITY FOR PRECIP IN OUR FORECAST AREA WILL BE OVER THE HIGHER TERRAIN NORTHEAST AND EAST OF PHOENIX. MOST NOTICEABLY OVER THE LOWER COLORADO RIVER VALLEY. IT WILL ALSO INTRODUCE ADDITIONAL COOLING BRINGING HIGH TEMPS THURSDAY INTO THE 60S ON THE LOWER DESERTS.
441 AM CST WED JAN 21 2015 A WEAK SFC COLD FRONT IS SLOWLY DRIFTING SOUTH ACRS THE NRN CWA EARLY THIS MORNING. THE COLD FRONT MOVING ACRS THE AREA THIS MORNING IS EXPECTED TO MOVE OVER THE GULF DURING THE DAY TODAY. HIGH PRES BUILDING IN BEHIND THE FRONT WILL BRING ABOUT ONE MORE DRY DAY WITH AFTN HIGHS RUNNING A FEW DEGREES COOLER THAN YESTERDAY AS TEMPS TOP OUT IN THE MIDDLE AND UPPER 60S.
HIGH PRESSURE WILL KEEP MAINLY CLEAR SKIES AND ABOVE NORMAL TEMPERATURES OVER THE HIGHER ELEVATIONS TODAY WHILE THE SAN JOAQUIN VALLEY WILL SEE A CONTINUATION OF COOLER TEMPERATURES UNDER MOSTLY CLOUDY SKIES AS AN INVERSION PERSISTS.
554 AM CST WED JAN 21 2015 CLOUDS WILL THICKEN TODAY AS ISENTROPIC LIFT BEGINS TO SATURATE THE LOWER AND MID LEVELS. UPPER AIR ANALYSIS LAST EVENING SHOWED A BROAD SHALLOW TROUGH OVER THE EASTERN HALF OF THE COUNTRY WITH WEST-NORTHWESTERLY FLOW OVER TEXAS. A WEAK RIDGE WAS OVER THE SOUTHWEST WITH A SHARPER TROUGH ALONG THE WEST COAST. AT THE SURFACE A COLD FRONT HAS MOVED THROUGH MOST OF OUR CWA AND STRETCHES FROM GONZALES TO PLEASANTON TO EL INDIO. FOR THE REST OF THIS PERIOD THE WEST COAST TROUGH WILL MOVE THROUGH THE SOUTHWEST AND THE UPPER FLOW OVER US WILL TURN FROM WESTERLY TO SOUTHWESTERLY. LOW LEVEL MOISTURE WILL INCREASE BEFORE THE FRONT AND UPPER TROUGH GET HERE AND EXPECT A GOOD SOAKING RAIN FOR THE EASTERN HALF OF THE AREA.
640 PM EST FRI JAN 16 2015 A MOSTLY DRY COLD FRONT STALLS IN NORTHERN WEST VIRGINIA OVERNIGHT. BEFORE RETREATING NORTH AS A WARM FRONT ON SATURDAY.
/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.
913 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.
HIGH PRESSURE ACROSS THE STATE HAS KEPT CONDITIONS QUIET THROUGHOUT THE DAY. A WEAK COLD FRONT NE OF THE REGION INTRODUCED A DECK OF LLVL CLOUDS. WHILE LIKELY EXHIBITING A DECENT RIDGE VALLEY SPLIT THANKS TO LIGHT WINDS. HIGH PRESSURE. THIS WILL PULL WARMER. GENERALLY TOPPING OUT IN THE LOW TO MID 50S ACROSS THE EASTERN PORTION OF THE STATE. FROM THIS SYSTEM WILL EXTEND A COLD FRONT STRETCHING FROM MN TO NORTHERN TX.
522 PM EST FRI JAN 16 2015 A MOSTLY DRY COLD FRONT STALLS IN NORTHERN WEST VIRGINIA OVERNIGHT. BEFORE RETREATING NORTH AS A WARM FRONT ON SATURDAY.
AGREE WITH PREVIOUS FORECAST THAT PATCHY FOG AND FREEZING FOG IS POSSIBLE AFTER MIDNIGHT.
A COLD FRONT WAS FARTHER WEST OVER EASTERN MT AND WAS MORE OF A DEWPOINT DISCONTINUITY. WILL INCREASE POPS ON THE ND SIDE AFTER MIDNIGHT WITH COLD FRONT MOVING IN LATER TONIGHT. WILL ADD PATCHY FREEZING DRIZZLE ON THE ND SIDE. FORECAST CHALLENGE FOR TONIGHT WILL BE THREAT FOR FREEZING RAIN OR A WINTRY MIX OF PRECIPITATION. SOUTHERLY FLOW OVER DAKOTAS WILL CONTINUE TO BRING IN A MOISTER/WARMER AIRMASS. WITH THE THERMAL RIDGE OVER THE VALLEY AROUND 09Z SAT MORNING. MODEL P TYPE PLOTS AND BUFKIT SOUNDINGS BOTH INDICATED FREEZING RAIN POTENTIAL FROM LATE EVENING INTO THE EARLY MORNING HOURS. COOL FRONT WILL MOVE ACROSS REGION HOWEVER VERY EFFICIENT MIXING WITH 25 TO 35 MPH WINDS WILL KEEP TEMPS IN THE LOWER 30S FOR MUCH OF THE REGION.
739 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
FORECAST CHALLENGE FOR TONIGHT WILL BE THREAT FOR FREEZING RAIN OR A WINTRY MIX OF PRECIPITATION. SOUTHERLY FLOW OVER DAKOTAS WILL CONTINUE TO BRING IN A MOISTER/WARMER AIRMASS. WITH THE THERMAL RIDGE OVER THE VALLEY AROUND 09Z SAT MORNING. MODEL P TYPE PLOTS AND BUFKIT SOUNDINGS BOTH INDICATED FREEZING RAIN POTENTIAL FROM LATE EVENING INTO THE EARLY MORNING HOURS. COOL FRONT WILL MOVE ACROSS REGION HOWEVER VERY EFFICIENT MIXING WITH 25 TO 35 MPH WINDS WILL KEEP TEMPS IN THE LOWER 30S FOR MUCH OF THE REGION.
525 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.
521 PM CST FRI JAN 16 2015 FOR 00Z TAFS /ISSUED 315 PM CST FRI JAN 16 2015/ HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT WILL CONTINUE TO KEEP THE AREA CLEAR AND DRY OVERNIGHT. WILL CONTINUE THE MENTION OF FREEZING FOG IN THE LOW LYING AREAS OF THE FORECAST AREA. AND SIDED WITH THE COOLER GUIDANCE ON THIS. SOUTHWESTERLY FLOW BUILDS IN AT THE SURFACE AND ALOFT WHICH WILL USHER IN A WARMER AIR MASS FOR SATURDAY. GUIDANCE SEEMS TO BE COMING IN COOLER THAN THE PREVIOUS FORECAST WITH THE MET MUCH LOWER. WILL LEAN TOWARDS THE WARMER GUIDANCE.
523 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.
DUE TO THE MID-LEVEL RIDGE AXIS SLOWLY MOVING TO THE E/NE. ADJUSTED SLIGHTLY COOLER FOR LOWS CLOSER TO BLEND OF GEM/MAV OVERNIGHT DUE TO TEMPS FALLING QUICKER. ANOTHER COOL NIGHT IS IN STORE WITH FREEZING TEMPS CONFINED MAINLY EAST OF INTERSTATE 55. WHERE THE BEST AXIS OF HIGH PRESSURE WILL BE. FOR SATURDAY NIGHT LOW LEVEL RETURN FLOW WILL KEEP TEMPS ABOVE FREEZING IN THE MIDDLE TO UPPER 30S.
THIS WILL BRING PERIODS OF CLOUD COVER AND GUSTY WINDS TO THE LOWER ELEVATIONS EAST OF THE DIVIDE.
1041 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
BASED ON THE ORIENTATION OF THE RIDGE. MODERATING THE COOLER AIRMASS AND TRANSPORTING SCT-BKN MARINE STRATOCU ONSHORE AND INLAND THROUGH THE DAY. HIGHS WILL REACH THE LOW 70S OVER MUCH OF THE REGION WITH UPPER 60S ALONG THE VOLUSIA COAST AND MID 70S ACROSS THE SRN TREASURE COAST.
A DRY BACKDOOR COLD FRONT WILL SETTLE SOUTH THROUGH EASTERN VA TONIGHT AND INTO NORTHEASTERN NC ON SAT. HIGH PRESSURE WILL OTHERWISE EXTEND ACROSS THE REGION.
THIS WILL LIKELY FACILITATE SOME PATCHY FREEZING FOG AFTER MIDNIGHT AS TEMPERATURES FALL BELOW THE FREEZING MARK. SHOULDN'T BE TOO WIDESPREAD BUT THOSE WHO DO EXPERIENCE IT WILL WANT TO USE CAUTION DURING THE MORNING COMMUTE AS ROADS AND BRIDGES COULD BECOME SLICK.
520 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 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.
Overnight lows will mainly be in the lower to middle 30s, except upper 30s to near 40 right along the coast.
520 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
A DRY COLD FRONT WILL BRING STIFF N WINDS TO THE TERMINALS BY LATE SAT MORNING. AS SUCH OVERNIGHT TEMPS WILL NOT BE OVERLY COLD WITH LOWS IN THE LOWER TO MIDDLE 30S. WILL SEND DOWN A DRY AND BREEZY COLD FRONT DURING THE DAY /NRLY WIND SPEEDS OF 15-25 MPH/. THE COOLER AIR ASSOCIATED WITH THIS FRONTAL PASSAGE IS NOT EXCEPTIONAL COLD AND IN FACT. NWLY UPPER FLOW TO PERSIST ACROSS THE SRN PLAINS WITH A FAIRLY LOW AMPLITUDE WRN RIDGE AND ERN TROUGH PATTERN OVER THE CONUS.
948 PM EST FRI JAN 16 2015 AVIATION MILDER TEMPERATURES WILL PUSH INTO THE GREAT LAKES REGION THIS WEEKEND AS A LOW PRESSURE SYSTEM MOVES EAST ACROSS SOUTHERN CANADA. THERE IS A RISK FOR A BRIEF PERIOD OF LIGHT FREEZING RAIN AND SNOW ALONG AND NORTH OF THE U.
OCCASIONALLY MIXED WITH LIGHT RAIN/FREEZING RAIN WHERE THERE IS A LOSS OF ICE CRYSTALS IN THE COLUMN AND DEPENDENT ON SURFACE TEMPERATURE. CURRENT SURFACE ANALYSIS PLACES LOW/TROUGH DROPPED THROUGH SASKATCHEWAN WHILE UPPER LEVEL ANALYSIS PLACES SHORT WAVE SLIDING THROUGH THE ROCKIES. THOUGH EXPECT THE HIGHER AMOUNTS WILL REMAIN TO THE NORTH. THERMAL PROFILES CONTINUE TO SHOW SOME WARMER TEMPS ALOFT WHICH COULD RESULT IN A POTPOURRI OF PRECIPITATION TYPES. AS THE LOW PASSES TO THE NORTH.
600 PM CST Fri Jan 16 2015 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.
COOLER THERMAL PROFILES WITH THIS BAND OF PRECIPITATION SUPPORT MOSTLY SNOW. OCCASIONALLY MIXED WITH LIGHT RAIN/FREEZING RAIN WHERE THERE IS A LOSS OF ICE CRYSTALS IN THE COLUMN AND DEPENDENT ON SURFACE TEMPERATURE. CURRENT SURFACE ANALYSIS PLACES LOW/TROUGH DROPPED THROUGH SASKATCHEWAN WHILE UPPER LEVEL ANALYSIS PLACES SHORT WAVE SLIDING THROUGH THE ROCKIES. THOUGH EXPECT THE HIGHER AMOUNTS WILL REMAIN TO THE NORTH. THERMAL PROFILES CONTINUE TO SHOW SOME WARMER TEMPS ALOFT WHICH COULD RESULT IN A POTPOURRI OF PRECIPITATION TYPES. AS THE LOW PASSES TO THE NORTH.
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. HIGH PRESSURE WILL BUILD EASTWARD ACROSS THE REGION THROUGH THE 24 HR TAF CYCLE. COOLER AIR IN PLACE MAY KEEP THE EAST COAST WINDS OUT OF THE NNW THROUGH DAYBREAK SATURDAY BEFORE SHIFTING TO ONSHORE, WHICH IS HIGHLIGHTED WELL IN THE ARW/NMM OUTPUT. /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 WARM FRONT LIFTING NE INTO THE PACIFIC NW TONIGHT WILL SLOWLY LIFT THROUGH THE AREA SAT AS A VERY MOIST AND MILD AIR MASS OVERRUNS IT. A COLD WILL FOLLOW SAT NIGHT USHERING IN A MORE SHOWERY AND COOLER AIR MASS FOR SUN. WATER VAPOR PICTURES SHOWED THE FLAT UPPER RIDGE OFF THE COAST SHIFTING E JUST INSIDE OF 130W. LAYERED CLOUDS WERE SPILLING E OF THE RIDGE. WITH MODEL FORECAST H8 WINDS PEAKING AROUND 60 KT JUST AHEAD OF A COLD FRONT SAT EVENING MOISTURE TRANSPORT VALUES WILL BE HIGH. WITH THE PASSAGE OF THE COLD FRONT LATER SAT NIGHT WILL SEE SNOW LEVELS DROP AGAIN. BUT STILL SHOULD SEE AT LEAST A FEW INCHES OF SNOW IN THE CASCADES BEFORE TAPERING OFF MON AS ANOTHER FLAT RIDGE BUILDS IN.
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.
837 PM EST FRI JAN 16 2015 A MOSTLY DRY COLD FRONT STALLS IN NORTHERN WEST VIRGINIA OVERNIGHT. BEFORE RETREATING NORTH AS A WARM FRONT ON SATURDAY.
857 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
Have allowed the High Wind Warnings to expire. Satellite imagery shows clearing skies from the west as upper trof axis passes through central MT.
604 PM CST FRI JAN 16 2015 DEPARTING HIGH PRESSURE AND ADVANCING LOW PRESSURE HAVE RESULTED IN CLOUD COVER OVER MUCH OF THE FA. THIS WILL PUSH A WARM FRONT INTO THE FA. WILL SEE SOME SCATTERED FLURRIES OR PATCHY FREEZING DRIZZLE WITH THE ARRIVAL OF THE FRONT. WITH WAA AND THE APPROACH OF THE COLD FRONT. BETWEEN THE WARM AND COLD FRONTS. STILL HAVE A MENTION OF PATCHY FREEZING DRIZZLE/FREEZING RAIN THROUGH THE NIGHT.
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.
A WARM FRONT WILL LIFT NORTHWARD THROUGH WESTERN WASHINGTON ON SATURDAY MORNING.
647 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.
HIGH PRESSURE WILL BUILD EASTWARD ACROSS THE REGION THROUGH THE 24 HR TAF CYCLE. COOLER AIR IN PLACE MAY KEEP THE EAST COAST WINDS OUT OF THE NNW THROUGH DAYBREAK SATURDAY BEFORE SHIFTING TO ONSHORE, WHICH IS HIGHLIGHTED WELL IN THE ARW/NMM OUTPUT. /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.
550 PM CST FRI JAN 16 2015 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. HIGHS AROUND OR IN THE LOW 50S ARE POSSIBLE ACROSS THE EXTREME SOUTH/SOUTHWEST PARTS OF THE AREA WITH LOW 40S IN THE NORTH/NORTHEAST AREAS.
HIGH PRESSURE WILL REMAIN OVER THE REGION FOR THE NEXT SEVERAL DAYS. THE UPPER-LEVEL RIDGE IS FORECAST TO MOVE BACK OVER CALIFORNIA SATURDAY. AGAIN BRIEFLY WEAKENING THE RIDGE.
808 PM EST FRI JAN 16 2015 MOSTLY CLEAR SKIES PREVAIL THIS EVENING AS HIGH PRESSURE RIDGING CONTINUES TO BUILD IN.
HIGH PRESSURE WILL REMAIN OVER THE REGION FOR THE NEXT SEVERAL DAYS.
In fact, as of this afternoon, the trough axis and bulk of the storm have already pushed through western Montana. Most valleys have been able to mix out the cold pools due to strong westerly winds aloft and a weak cold front aloft.
UPDATES THIS EVENING TO END PRECIPITATION IN MOST OF THE LOWER SNAKE PLAIN AND EASTERN MAGIC VALLEY.
A cold front is expected to move through midday Saturday. 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.
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. 07 /ISSUED 315 PM CST FRI JAN 16 2015/ HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT WILL CONTINUE TO KEEP THE AREA CLEAR AND DRY OVERNIGHT. WILL CONTINUE THE MENTION OF FREEZING FOG IN THE LOW LYING AREAS OF THE FORECAST AREA. AND SIDED WITH THE COOLER GUIDANCE ON THIS. SOUTHWESTERLY FLOW BUILDS IN AT THE SURFACE AND ALOFT WHICH WILL USHER IN A WARMER AIR MASS FOR SATURDAY. GUIDANCE SEEMS TO BE COMING IN COOLER THAN THE PREVIOUS FORECAST WITH THE MET MUCH LOWER. WILL LEAN TOWARDS THE WARMER GUIDANCE.
643 PM EST FRI JAN 16 2015 AVIATION MILDER TEMPERATURES WILL PUSH INTO THE GREAT LAKES REGION THIS WEEKEND AS A LOW PRESSURE SYSTEM MOVES EAST ACROSS SOUTHERN CANADA. THERE IS A RISK FOR A BRIEF PERIOD OF LIGHT FREEZING RAIN AND SNOW ALONG AND NORTH OF THE U.
315 PM PST FRI JAN 16 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION FOR THE NEXT SEVERAL DAYS. THE UPPER-LEVEL RIDGE IS FORECAST TO MOVE BACK OVER CALIFORNIA SATURDAY. AGAIN BRIEFLY WEAKENING THE RIDGE.
1017 PM EST FRI JAN 16 2015 A WEAK COLD FRONT MOVED SOUTHWARD ACROSS THE FLORIDA KEYS AND ADJACENT COASTAL WATERS EARLIER TODAY.
BUT KEEPS THESE GUSTS CONFINED TO THE HIGHER AREAS.
COLD FRONT WILL ENTER NORTHWEST OKLAHOMA 10-12Z AND PROGRESS QUICKLY SOUTHWARD OVER TERMINALS THROUGH 18Z. A WEAK DRY 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.
717 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT.
708 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL GIVE THE AREA A VERY COLD NIGHT ALONG WITH SCATTERED FLURRIES SOUTHEAST OF LAKE ONTARIO.
636 PM EST FRI JAN 16 2015 HIGH PRESSURE WILL GIVE THE AREA A VERY COLD NIGHT ALONG WITH SCATTERED FLURRIES SOUTHEAST OF LAKE ONTARIO.
THE WEAKENING COLD FRONT IS CROSSING THE NRN CWA AT THIS TIME WITH A DISORGANIZED BAND OF SNOW SHOWERS. WARM FRONTAL CLOUDINESS SPREADS BACK INTO THE CWA FROM THE NW SAT AFTN AND SOME LIGHT PRECIP IS POSSIBLE ALONG THE ID BORDER SAT NIGHT INTO SUN.
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.
852 PM EST FRI JAN 16 2015 A QUIET JANUARY NIGHT ACROSS WEST CENTRAL AND SOUTHWEST FLORIDA AS COOLER. DRIER AIR ENTERS THE AREA BEHIND AN EXITING COLD FRONT. HIGH PRESSURE WILL BUILD IN OVER THE NORTHERN GULF OF MEXICO OVER THE NEXT 24 HOURS. WINDS WILL SHIFT TO NORTHEAST TONIGHT AND THEN EASTERLY SATURDAY AS HIGH PRESSURE MOVES BY TO THE NORTH.
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.
639 PM EST FRI JAN 16 2015 HIGH PRESSURE BUILDING INTO THE REGION TONIGHT WILL MOVE OFFSHORE SATURDAY.
AN AREA OF HIGH PRESSURE WILL RESULT IN DRY WEATHER. THE HIGH AT TIA WAS 71 DEGS.
808 AM EDT SUN MAR 15 2015 DRY HIGH PRESSURE WILL BUILD INTO THE REGION THROUGH MONDAY WITH TEMPERATURES ABOVE NORMAL.
935 AM PDT SUN MAR 15 2015 WITH HIGH PRESSURE ALOFT. SLIGHT COOLING IS EXPECTED BY MONDAY AS HIGH PRESSURE WEAKENS. NEAR NORMAL TEMPERATURES AND A RETURN OF THE MARINE LAYER CAN BE EXPECTED BY MID WEEK AS WEAK LOW PRESSURE APPROACHES FROM THE WEST. NO MAJOR CHANGES TO THE SHORT TERM FORECAST, BUT WILL PROBABLY BE THROWING IN SOME SMALL SHOWER CHANCES ON WED FOR THE MTNS AS MODELS SHOW SOME DECENT INSTABILITY AND MID LEVEL MOISTURE WITH THAT NEXT TROF. ***FROM PREVIOUS DISCUSSION*** THE RIDGE BREAKS DOWN MONDAY BUT HGTS REMAIN QUITE HIGH OFFSHORE FLOW PERSISTS FROM THE EAST AND REDEVELOPS FROM THE NORTH SO ONE LAST DAY OF VERY WARM TEMPS PERHAPS A DEGREE OR TWO COOLER THAN TODAY BUT THAT REALLY DEPENDS ON HOW MUCH HIGH CLOUDS THERE ARE.
A COLD FRONT WILL BE APPROACHING THE REGION FROM THE NORTH THIS AFTERNOON INTO TONIGHT. MODEL TREND THE PAST FEW DAYS, HAS BEEN TO SPEED UP COLD FRONTAL PASSAGE ACROSS SOUTH FLORIDA TO CLOSE THE WEEKEND.
CHATTANOOGA AIRPORT, TN 71 41 78 50 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 67 39 72 48 / 0 0 0 0 OAK RIDGE, TN 69 39 74 48 / 0 0 0 0 TRI CITIES AIRPORT, TN 63 36 70 43 / 0 0 0 10.
VERY WARM AND DRY SWLY FLOW OVER THE AREA AHEAD OF POLAR COLD FRONT FROM CENTRAL SASKATCHEWAN INTO SWRN ALBERTA. COLD FRONT WILL ENTER NORTHERN IOWA MONDAY AFTERNOON AND PASS SOUTH OF THE AREA MONDAY NIGHT. HIGH PRESSURE WILL BUILD INTO THE STATE TUE AND WED.
/ISSUED 319 AM CDT SUN MAR 15 2015/ WARMER TEMPERATURES ARE ON TAP FOR TODAY AND MONDAY AS HIGH PRESSURE PREVAILS AT THE SURFACE AND ALOFT.
EXPECT THE LOW CLOUDS TO SPREAD SOUTH THIS MORNING. THE LOW CLOUD COVER WILL TEND TO DISSIPATE.
THIS FRONT IS A REMNANT OF THE TROUGH AND UPPER LOW MOVING OFF THE NEW ENGLAND COAST. ANOTHER UPPER LOW IS SITTING OVER THE SOUTHERN END OF THE GULF OF CALIFORNIA. A DEEP LAYER RIDGE BUILDING OVER THE GULF OF MEXICO. THIS BLOCKING RIDGE WILL BE THE MAIN FACTOR TO THE FORECAST. THE UPPER LOW NEAR OLD MEXICO WILL RETROGRADE TO THE NORTHWEST SLIGHTLY DUE TO A STRONG UPPER LOW MOVING ACROSS CANADA AND A RIDGE OVER THE INTERMOUNTAIN WEST BLOCKING ITS EASTWARD PROGRESSION. TROUGH TO OUR NORTH WILL SLOWLY MOVE SOUTHEAST AS SEVERAL LOBES OF VORTICITY STRETCH EASTWARD AHEAD OF. AND ALONG THE SOUTHERN EDGE THE ADVANCING MID LEVEL RIDGE.
A WARM FRONT EXTENDED FROM A LOW OVER NORTH CENTRAL CANADA SOUTHWARD INTO THE EASTERN DAKOTAS - INCLUDING THE JAMES RIVER VALLEY. SOUTHWEST TO WEST WINDS OF 10 TO 20 MPH WERE OCCURRING OVER WESTERN AND MOST OF CENTRAL NORTH DAKOTA BEHIND THE WARM FRONT. A COLD FRONT IS FORECAST TO MOVE SOUTHEAST ACROSS THE STATE TODAY. THUS ANY MIXING OF THE LOWER/SURFACE LAYERS WITH H850 WOULD NOT TAP INTO VERY STRONG WINDS THIS AFTERNOON. 71 IN 2012 TONIGHT A SECONDARY COLD FRONT MOVES INTO NORTHERN NORTH DAKOTA AND MOVES SOUTHWARD ACROSS THE STATE. LACK OF SIGNIFICANT MOISTURE SOURCE SHOULD KEEP QPF/SNOW AMOUNTS ON THE LOW END. WILL KEEP POPS ON THE LOW END. WEST WINDS TO BECOME NORTHWEST THIS AFTERNOON WITH THE PASSAGE OF A COLD FRONT. ANOTHER SECONDARY COLD FRONT MOVES SOUTH FROM CANADA THIS EVENING.
1028 mb high pressure ridge over mid MS river valley will drift east into TN river valley this evening and continue fair and mild weather over central/se IL. Ridge of high pressure currently extending from Lake Superior to the Texas panhandle will settle southward into the Ohio River Valley today. Skies will initially be sunny during the morning: however, as a trough of low pressure tracks across the Upper Midwest into the Great Lakes, high clouds will stream southward into the area later in the day. Clouds may become thick enough to mitigate the warming trend somewhat, but am still expecting temps to be 3-6 degrees warmer than yesterday, with readings topping out in the middle to upper 60s.
MOST OF THE LOW CLOUDS FROM EARLIER HAVE SCATTERED OUT. WINDS WILL REMAIN LIGHT AND VARIABLE AS WEAK HIGH PRESSURE REMAINS OVER THE WRN GULF COAST REGION. WEAK HIGH PRESSURE IS RIDGING IN FROM THE NORTH THIS MORNING WHILE MID AND HIGH LEVEL MOISTURE IS STREAMING IN FROM THE PACIFIC. AN UPPER DISTURBANCE NEAR THE SOUTH END OF THE BAJA PENINSULA WILL SLOWLY RETROGRADE THROUGH THE NEXT 48 HRS WHILE RIDGING OCCURS LOCALLY.
430 AM PDT SUN MAR 15 2015 UPDATED AVIATION SECTION WITH HIGH PRESSURE ALOFT. SLIGHT COOLING IS EXPECTED BY MONDAY AS HIGH PRESSURE WEAKENS. NEAR NORMAL TEMPERATURES AND A RETURN OF THE MARINE LAYER CAN BE EXPECTED BY MID WEEK AS WEAK LOW PRESSURE APPROACHES FROM THE WEST. 586 DM UPPER RIDGE AND WEAK OFFSHORE FLOW FROM THE EAST (NEUTRAL IN THE N/S DIRECTION) WILL COMBINE TO MAKE FOR ANOTHER RECORD BREAKING DAY. THE RIDGE BREAKS DOWN MONDAY BUT HGTS REMAIN QUITE HIGH OFFSHORE FLOW PERSISTS FROM THE EAST AND REDEVELOPS FROM THE NORTH SO ONE LAST DAY OF VERY WARM TEMPS PERHAPS A DEGREE OR TWO COOLER THAN TODAY BUT THAT REALLY DEPENDS ON HOW MUCH HIGH CLOUDS THERE ARE.