Aikyam-Lab/Synoptic-Bench huggingface dataset:
UPPER RIDGE TO BUILD OVER THE FA FOR THIS WEEKEND. THIS SHOULD HELP BOOST TEMPERATURES WITH WARMEST VALUES OVER THE WEST WITH COOLER TEMPERATURES EASTWARD. MIXING AND CONTINUED WARM ADVECTION WILL KEEP TEMPERATURES VERY MILD SATURDAY NIGHT WITH MINIMUMS A FEW DEGREES EITHER SIDE OF FREEZING. THERMAL RIDGE AXIS SHIFTS OVER THE FA SUNDAY. MOST AREAS WILL BE ABLE TO STAY ABOVE FREEZING SUNDAY NIGHT.
AN U/L DISTURBANCE WILL DIG THROUGH THE OHIO RIVER VALLEY TODAY WITH THE TROUGH AXIS EXTENDING OVER THE SOUTHEAST U. THE L/W TROUGH WILL PUSH OFF THE EASTERN SEABOARD TONIGHT AND SUNDAY WITH A WEAK COLD FRONT PUSHING ACROSS WEST CENTRAL AND SOUTHWEST FLORIDA.
HIGH PRESSURE MOVES EAST WHICH ALLOWS FOR SOUTHERLY WINDS TO DEVELOP. DEWPOINTS LOOK TO DROP INTO THE LOW TO MID 20S OVER THE SOUTHWEST CWA. EVEN WARMER AIR AT 925/850MB MOVES INTO THE REGION.
MID LEVEL RIDGING OVER THE DESERT SOUTHWEST WILL SHIFT EAST TODAY AND TONIGHT. A MID LEVEL SHORT WAVE TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST ON SUNDAY. HIGH PRESSURE WILL STILL BE STRONG OVER THE SOUTHEAST UNITED STATES AND THE NORTHERN GULF OF MEXICO ON SUNDAY. HIGH CLOUDS WILL SLOWLY INCREASE AS THE MAIN RIDGE SHIFTS EAST AND FLOW FROM THE EASTERN PACIFIC HAS A CLEARER PATH OVER THE AREA.
HIGH PRESSURE BUILDS IN SUNDAY. MAINLY IN THE HIGHER ELEVATIONS OF THE WV MOUNTAINS. A VERY TRANQUIL PERIOD AS HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT DOMINATE.
ONSHORE FLOW WILL KEEP THE BEACHES COOLER WITH TEMPS ONLY IN THE LOW TO MID 60S. AN INVERTED COASTAL TROUGH WILL DEVELOP BUT ANY ASSOCIATED STRAY SHOWER OR TWO SHOULD REMAIN OFFSHORE. AN UPPER TROUGH WILL PIVOT ACROSS THE REGION TONIGHT AND THIS WILL DRIVE A DRY COLD FRONT THROUGH THE AREA. UPPER LEVEL TROUGH WILL MOVE OFF THE EAST COAST OF THE CONUS ON SUNDAY. AND A DRY COLD FRONT WILL CLEAR THE REGION BY SUNDAY MORNING.
LATEST PROGS CONTINUE THE TREND OF DEEPENING THIS TROF A BIT THIS EVENING. MID LEVEL DRYING IN THE WAKE OF THE WAA MAY YIELD A PERIOD OF PATCHY FREEZING DRIZZLE BEFORE THE 850 LOW DROPS IN AND A SLIGHT COLDER AIR MASS SLIPS SOUTHWARD INTO THE AREA FROM THE NORTH. NOT SEEING MUCH SNOW WRAPPING INTO THE LOW OVER MINNESOTA SO FAR THIS AFTERNOON IN THE WAKE OF THE INITIAL BAND. FREEZING DRIZZLE POTENTIAL MAY WARRANT THE ADVISORY FOR THE OVERNIGHT HOURS.
304 AM EST SAT MAR 5 2016 RAIN AND SNOW WILL MOVE ACROSS THE AREA TODAY BEFORE MUCH WARMER CONDITIONS ARRIVE THROUGH THE REST OF THE WEEK. WITH WEAK WARM ADVECTION AND TEMPERATURES STARTING OFF NOT ALL THAT FAR BELOW FREEZING. AND TEMPERATURES LIKELY TO CLIMB ABOVE FREEZING EVEN WHERE PRECIPITATION MAY NOT CHANGEOVER FROM SNOW NORTH OF I-80. ACROSS THE RIDGES. HIGH PRESSURE WILL BUILD INTO THE REGION SUNDAY IN THE WAKE OF THE DEPARTING CLIPPER SYSTEM.
CURRENT WATER VAPOR IMAGERY AND RAP UPPER AIR ANALYSIS INDICATES A TROUGH ACROSS THE NORTHERN MISSISSIPPI RIVER VALLEY WITH NORTHWESTERLY FLOW ACROSS THE FORECAST AREA. THIS TROUGH WILL BE THE MAIN FEATURE FOR THE SHORT-TERM FORECAST. HIGH PRESSURE IS IN PLACE WITH CALM WINDS AND MOSTLY CLEAR SKIES. THE AFOREMENTIONED TROUGH WILL DIVE SOUTHEASTWARD INTO THE OHIO RIVER VALLEY WITH CLOUDS INCREASING ACROSS THE NORTHERN COUNTIES LATE IN THE MORNING. MODEL SOUNDINGS SUPPORT ENOUGH SATURATION FOR LIGHT PRECIPITATION TO DEVELOP THIS AFTERNOON WITH THE NORTHERN HALF OF THE AREA HAVING THE HIGHEST CHANCES. THE COLD FRONT WILL MOVE THROUGH THE AREA BETWEEN 00-06Z WITH COLDER AIR IN THE LOW LEVELS MOVING IN BEHIND THE FRONT.
LOW PRESSURE WILL BRING A MIX OF RAIN AND SNOW SATURDAY INTO SATURDAY NIGHT. HAVE GONE WITH A BIT COOLER SOLUTION WITH A BLEND OF LOW LEVEL THICKNESS. ALLOWING FOR A RAIN SNOW MIX INTO THE AFTERNOON MAINLY FROM PITTSBURGH NORTHWARD AND IN THE RIDGES. STILL EXPECT LITTLE ACCUMULATION DAYLIGHT HOURS SATURDAY WITH POSSIBLY A COATING IN THE HIGHER ELEVATIONS. TEMPERATURES FALL OFF WITH A BETTER CHANCE FOR SOME ACCUMULATING SNOW IN THE RIDGES WITH AN INCH OR TWO POSSIBLE. SNOW WILL END AS FLURRIES IN THE SOUTHEAST RIDGES DAYBREAK SUNDAY. HIGH PRESSURE BRINGS CLEARING SKIES FOR SUNDAY WITH THE BEGINNING OF A WARMING TREND AS HIGHS MOVE TO NEAR THE SEASONAL AVERAGE.
HIGH PRESSURE BUILDS IN SUNDAY. MAINLY IN THE HIGHER ELEVATIONS OF THE WV MOUNTAINS. A HIGH PRESSURE SYSTEM WILL BUILD IN ON SUNDAY.
WITH A NORTHWEST FLOW TONIGHT AHEAD OF AN UPPER RIDGE OVER THE EASTERN PLAINS. EXPECT ANY PRECIPITATION TO BE MAINLY DRIZZLE/FREEZING DRIZZLE UNTIL MID MORNING. MOISTURE DOES REMAIN IN THE LOWER LAYERS. ESPECIALLY AROUND 2 THSD FT JUST BELOW THE LOWERING INVERSION THROUGH THE AFTERNOON AND INTO THE EVENING.
1029 PM MST FRI MAR 4 2016 INITIAL COLD FRONT THROUGH THE EASTERN PLAINS EARLIER THIS AFTERNOON. THOUGH SOME COOLER TEMPS AND GUSTY NE WINDS WILL CONTINUE TO SPREAD SOUTH BEHIND THE SECONDARY FRONT. NARROW BAND OF MID LEVEL MOISTURE AND SOME MODEST CONVECTIVE CLOUDINESS SINKING SOUTH ALONG THE FRONT RANGE THIS AFTERNOON MAY STILL PRODUCE A FLURRY/SPRINKLE OVER THE HIGHER TERRAIN OF TELLER COUNTY AND ACROSS THE MOSQUITO RANGE THROUGH SUNSET. UPPER RIDGE SHIFTS EASTWARD INTO THE CENTRAL PLAINS WITH FLOW GRADUALLY BENDING BACK TOWARD THE SOUTHWEST DURING THE DAY. SURFACE WINDS ACROSS THE PLAINS WILL INCREASES AS LEE TROUGH DEEPENS.
AN ASSOCIATED COLD FRONT ADVANCING THROUGH PORTIONS OF NERN NEB AS OF MID AFTERNOON. SHOULD HAVE MOVED THROUGH ALL OF THE AREA BY LATE EVENING WITH BUILDING HIGH PRESSURE IN ITS WAKE. A LONGER-WAVELENGTH RIDGE WILL BECOME ESTABLISHED FROM THE ROCKIES THROUGH MS VALLEY. BETWEEN A TROUGH SHIFTING OFF THE EAST COAST AND AN UPSTREAM SYSTEM MOVING FROM THE FAR ERN PACIFIC INTO THE INTERIOR WEST. 12Z MODEL GUIDANCE CONTINUES TO INDICATE THE PRESENCE OF ONE OR MULTIPLE WEAK PERTURBATIONS WHICH WILL MOVE THROUGH THE MEAN RIDGE OVER THE CNTRL U. BUT RELATIVELY STRONG SWLY WINDS JUST ABOVE THE GROUND WILL PROMOTE TURBULENT MIXING OF WARMER AIR ALOFT WITH HIGHS WARMING INTO THE 60S.
1232 AM EST SAT MAR 5 2016 HIGH PRESSURE WILL SETTLE OVER THE AREA TONIGHT INTO SATURDAY. A WEAK COLD FRONT WILL PUSH OFFSHORE SATURDAY NIGHT. HIGH PRESSURE WILL EXTEND ACROSS THE AREA SUNDAY THROUGH MID WEEK. HAVE MADE FURTHER DOWNWARD ADJUSTMENTS TO THE LOW TEMPERATURE FORECAST.
HIGH CLOUDS CONTINUE TO STREAM OVER ARIZONA TONIGHT AS A LARGE WEST COAST TROUGH DISPLACES THE RIDGE THAT HAS BEEN OVER OUR REGION FOR MANY WEEKS. S/WV ACTIVITY WITHIN THIS TROUGH WILL NOT BE VERY IMPRESSIVE ACROSS ARIZONA.
324 AM CST SAT MAR 5 2016 IN THE WAKE OF THE CURRENT SHRTWV TROF MOVG INTO THE GREAT LAKES THIS MRNG THE CNTRL/NRN PLAINS WILL SEE H5 HEIGHT RISES OF 100-110 M TODAY AS THE SHRTWV RIDGE OVER THE INTERMOUNTAIN WEST DEVELOPS EWD. THE 08Z SFC ANALYSIS INDCD A RIDGE AXIS FM SW NEB INTO ERN SD. THIS YIELDS HIGHS AROUND 50 EAST TO THE LOWER 60S FAR WEST.
PERIODS OF RAIN ARE FORECAST ACROSS THE HIGHER TERRAIN THIS WEEKEND. A SHORT WAVE TROUGH EMBEDDED IN A MOIST SOUTHWESTERLY FLOW ALOFT WILL MOVE THROUGH THE REGION TONIGHT AND SATURDAY. THE TROUGH WILL MOVE TO OUR NORTHEAST LATE SATURDAY. DOWNSLOPE DRYING INFLUENCED BY STRONG SE-SW WINDS IN THE LOWER-MIDDLE LEVELS OF THE ATMOSPHERE WILL KEEP QPF AMOUNTS ON THE LOW SIDE ACROSS THE TREASURE VALLEY. A COLD FRONT WILL SWING THROUGH ON SUNDAY. WHILE MUCH COOLER.
HIGHS SAT WILL BE A TAD WARMER THAN TODAY RANGING FROM THE UPPER 60S TO NEAR 70 FOR MOST INLAND AREAS. AND THE MID 60S NEAR THE IMMEDIATE COAST MOSTLY DUE TO THE COOLER NEAR SHORE WATER TEMPS.
328 AM EST SAT MAR 5 2016 HIGH PRESSURE WILL RESIDE OVER THE MID ATLANTIC TODAY. WEAK LOW PRESSURE MOVES QUICKLY THROUGH TONIGHT INTO EARLY SUNDAY MORNING. HIGH PRESSURE RETURNS FOR SUNDAY AND THROUGH THE MIDDLE OF THE WEEK. A DEEP CYCLONE OFF THE CNDN MARITIMES AND A WK CLIPPER CROSSING THE GRTLKS. WHICH WL KEEP TEMPS ON THE LOWER SIDE.
A low pressure system is currently making its way through Idaho and has brought widespread rain showers to valleys and high elevation snow to central Idaho. The center of the low is currently located to the west of Grangeville, along the Idaho/Oregon border. The low is expected to continue moving southeast and will bring rain showers and high elevation snow to west central Montana, southwest Montana and central Idaho this evening.
319 PM EDT MON OCT 26 2015 QUIET CONDITIONS WILL LEAD OFF THE PERIOD WITH AN INCREASING SOUTHERLY FLOW ALLOWING FOR WARMER OVERNIGHT TEMPERATURES IN THE UPPER 30S TO LOWER 40S. CLOUDS WILL BE ON THE INCREASE TUESDAY WITH RAIN CHANCES INCREASING AS WELL AS STRONG LOW PRESSURE MOVES TOWARDS THE REGION. WITH REGARDS TO FOCUS THEN SHIFTS TO SECONDARY TROUGH WITH A NARROW BAND OF POSSIBLE CLEARING AND INCREASE IN INSTABILITY TIMED OUT FOR EASTERN AREAS IN THE AFTERNOON.
LOW PRESSURE IS CURRENTLY CENTERED OVER SOUTHWEST LOUISIANA. THE LOW WILL MOVE SLOWLY EAST TODAY AND WILL CONTINUE TO SPREAD MOISTURE NORTHWARD INTO THE FORECAST AREA. THE LOW WILL START TO MOVE NORTH INTO SOUTHWEST MISSISSIPPI.
Taking a look at Texas Tech Mesonet data this morning, many locations were in the 30s in and around the Concho Valley area with a few locations near freezing, and Sterling City hitting the freezing mark.
In the meantime, high plains lee troughing will continue today. A cold front will traverse across the state. Have the highest pops along west-central Kansas, where the frontogenesis the most most pronounced in addition in closer proximity to the 100-110 kt 250-hPa passing jet streak.
Highs will be mostly in the lower 70s. Lows will be mainly in the lower to mid 40s. will lead to breezy and slightly warmer conditions for Tuesday.
SOME TWEAKS TO THE TEMPERATURES TO ACCOUNT FOR THE SLIGHTLY WARMER TRENDS.
STILL SEEING GUSTY WINDS IN THE EAST THIS EVENING DUE TO THE INFLUENCE OF THIS LOW AND THE BUILDING RIDGE TO THE NORTH. HIGH PRESSURE WILL REMAIN IN CONTROL TUESDAY AND TUESDAY NIGHT WITH PLEASANT CONDITIONS EXPECTED. TEMPERATURES WILL WARM SLIGHTLY TOMORROW WITH HIGHS INTO THE LOWER AND MIDDLE 80S AREA WIDE.
WITH THE REMNANTS OF THE WEEKEND RAIN EVENT SWEEPING NEWD INTO THE LOWER MISSISSIPPI VALLEY. WINDS WILL FINALLY SHIFT BACK TO THE SOUTH LATE TOMORROW AFTERNOON AS THE RIDGE MOVES OFF TO THE EAST. TUESDAY NIGHT WILL WITH LOWS ONLY FALLING TO THE LOWER 60S.
HIGH WIND WATCH FOR HARLAN AND LETCHER COUNTIES TUESDAY NIGHT POTENTIAL HIGH WIND MOUNTAIN WAVE EVENT SETTING UP FOR TUESDAY NIGHT AS LOW PRESSURE MOVES INTO THE MID MS VALLEY AND HIGH PRESSURE REMAINS OVER THE NORTHEAST PART OF THE COUNTRY. ALSO THE FORECAST SOUNDINGS IN THE LOWER LEVELS ARE STABLE WITH A POSSIBLE INVERSION EXTENDING TO NEAR OR ABOVE 850 MB. ABUNDANT MOISTURE WILL ALSO BE PULLED NORTH INTO THE REGION IN ADVANCE OF THE LOW PRESSURE SYSTEM MOVING NORTH FROM THE GULF COAST TOWARDS THE MID MS VALLEY.
THE MID LEVEL LOW OVER SOUTHWEST LOUISIANA WILL MOVE NORTHEAST AND OPEN INTO A SHORT WAVE TROUGH BY THIS EVENING. A WEAK SHORT WAVE TROUGH WILL MOVE QUICKLY THROUGH TEXAS ON TUESDAY THAT COULD PROVIDE SOME HIGH CLOUDS OVER THE VICTORIA CROSSROADS TUESDAY MORNING.
THE HIGH TEMPERATURE FORECAST TODAY FOLLOWS A BLEND OF THE WARMER GUIDANCE PLUS BIAS CORRECTION.
309 PM PDT MON OCT 26 2015 WARM TODAY AND TUESDAY UNDER WEAK HIGH PRESSURE ALOFT WITH PATCHY NIGHT AND MORNING LOW CLOUDS AND FOG NEAR THE COAST.
WINDS WILL SLOWLY WEAKEN EACH SUBSEQUENT HOUR AS THE LOW FURTHER RETREATS EASTWARD AND THE REGIONAL AIR MASS TEMPERATURE PROFILE MODIFIES PER SLOWLY THINNING CLOUD COVER.
LOW CLOUD SHIELD COVERS MIDDLE TENNESSEE THIS AFTERNOON WITH LIGHT RAIN MOVING IN AHEAD OF A SLOW-MOVING LOW PRESSURE SYSTEM CENTERED ALONG THE LOUISIANA COAST. THE LOW CENTER IS RELATIVELY DEEP -- 1001 MB AT 18Z -- BUT IS SLOWLY FILLING AS IT MOVES ONSHORE.
305 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL DOMINATE REGIONAL WEATHER CONDITIONS THROUGH TUESDAY WITH DRY WEATHER AND SEASONABLY COOL TEMPERATURES.
An upper level trough moving across the Rockies this morning will move out into the central U. The highest chances will be eastern half of the area and lesser chances towards southeast Kansas. It appears this will mainly be light and steady rain showers with the highest QPF east of Highway 65 with an average of a 0.
141 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL BRING FAIR WEATHER THROUGH TUESDAY AFTERNOON.
S-SE WINDS ALOFT WILL CONTINUE TO FEED MOISTURE TO THE AREA AND THAT COUPLED WITH THE LIFT FROM THE LOW WILL KEEP WIDESPREAD RAIN SHOWERS IN THE FORECAST OVERNIGHT. THERE IS A 3-5 DEG OR MORE DIFFERENCE IN GUIDANCE FOR LOWS TONIGHT MOSTLY SPLIT BETWEEN THE NAM/GFS WITH THE NAM BEING THE COOLER GUIDANCE. 850MB WINDS ON BOTH NAM/GFS ARE 50-60 KT WITH THIS JET BUT THE LIMITING FACTOR ON SURFACE WINDS WILL BE A STRONG CAP BELOW 850MB KEEPING THE HIGHER WINDS FROM MIXING DOWN. NOT MUCH DIFFERENCE IN THE FORECAST FOR TUESDAY IN TERMS OF PRECIP WITH WIDESPREAD SHOWERS CONTINUING AND COOLER THAN NORMAL TEMPS. IN THE LOWER TO MIDDLE 60S.
THE VORT MAX AT THE BASE OF THE TROF (CURRENTLY OVER UT/AZ) WILL APPROACH TONIGHT AND BE OVERHEAD AT DAYBREAK TUE.
DRY WEATHER AND ABOVE NORMAL AFTERNOON TEMPERATURES CAN BE EXPECTED OVER THE DISTRICT THROUGH TUESDAY WHILE A RIDGE OF HIGH PRESSURE BUILDS OVER THE STATE. A STORM SYSTEM OVER THE EASTERN PACIFIC WILL BRING COOLER TEMPERATURES. UPPER RIDGING WHICH BUILT INLAND INTO CA OVERNIGHT AND THIS MORNING IS PROVIDING FOR A MOSTLY SUNNY DAY ACROSS OUR AREA. 12Z WRF IS INDICATING THAT THE RIDGE WILL BREAK DOWN ON TUESDAY AS AN ELONGATED UPPER TROUGH APPROACHES THE WESTERN CONUS COAST.
THE FAIRLY DYNAMIC SYNOPTIC HEIGHT PATTERN AS A SHALLOW 5H TUESDAY TROUGH PASSAGE FOLLOWS ON THE HEELS OF THIS EXITING LOW INTO THE SE'ERN U.
FOLLOWED BY THE RETURN OF HIGH PRESSURE ALOFT MIDWEEK.
Change is on the way, however, thanks to an approaching upper trough from the west and Patricia's remnants making its way up the Mississippi River Valley over the next couple of days. While decent chances look to exist across the entire forecast area for tomorrow, trends continue to indicate that the higher amounts and better chances will be across the eastern third to two-thirds of the forecast area, particularly in eastern MO. As for some of the higher res models, such as the WRF-NMM and ARW, am favoring the NMM over the ARW given the consensus that it falls in line with as compared to the GFS and ECMWF. The low in the Gulf is just now coming onshore so expect the models to align themselves better with one another (hopefully) for the 12Z and next 00Z model runs.
WEAK HIGH PRESSURE WILL BUILD OVER THE REGION TODAY AND TUESDAY BRINGING WARMER TEMPERATURES BACK TO THE REGION ALONG WITH PERIODS OF HIGH CLOUDS.
332 PM CDT MON OCT 26 2015 LARGE AREA OF HIGH PRESSURE OVER THE NORTHEAST CONUS WILL CONTINUE TO SHIFT EAST OVERNIGHT AND COMBINED WITH LOW PRESSURE OVER THE GULF COAST WILL LEAD TO INCREASING SOUTHEAST FLOW TONIGHT.
A LEE TROUGH CONTINUES TO DEEPEN OVER CENTRAL COLORADO WITH A TIGHTENING SURFACE PRESSURE GRADIENT OBSERVED OVER THE HIGH PLAINS. BECOMING BREEZY BY MID MORNING AS A LEE TROUGH TO THE WEST DEEPENS. SLIGHTLY COOLER TEMPERATURES ARE FORECAST AS TEMPERATURES ALOFT HAVE FALLEN TONIGHT AND BREEZY CONDITIONS SHOULD CAUSE A MORE DEEPLY MIXED BOUNDARY LAYER. SLIGHTLY WARMER TEMPERATURES, 2. AN INCOMING COLD FRONT, 3. THE COLD FRONT MAKES ITS BIG PUSH SOUTH OVER THE HIGH PLAINS TUESDAY EVENING.
Some areas will still see lows in the middle 30s while others will hold in the lower 40s this morning. On a large scale, a deep closed low continued to spin over southern Louisiana and pull ample moisture north around the system. Currently, these showers should be scattered in nature through that period, but could also see areas of drizzle develop given the lift and quality moisture in the low levels.
THIS UPPER TROUGH WILL SLIDE ACROSS OUR FORECAST AREA LATER TONIGHT INTO TUESDAY. THERE WILL BE LITTLE IF ANY CHANGE IN TEMPERATURES THROUGH TUESDAY WITH LOWS STILL AROUND 40 AND HIGHS IN THE LOWER 60S. SHOWING UPPER LEVEL TROUGHING IN PLACE ACROSS THE REGION TUESDAY EVENING. AN EXTENSION OF LOW PRESSURE SPINNING OVER N/CENTRAL CANADA. THIS UPPER LEVEL SYSTEM WILL BE PUSHING A STRONGER COLD FRONT THROUGH THE REGION.
A MID LEVEL DRY SLOT LIFTING NORTH AHEAD OF THE UPPER LOW RESULTED IN MORE LIMITED COVERAGE OF RAIN OVER NORTH MS THIS AFTERNOON. TUESDAY WILL SEE THE UPPER LOW CONTINUE TO WEAKEN. AS IT CONSOLIDATES INTO CYCLONIC FLOW AHEAD OF AN UPPER LEVEL TROF LIFTING THROUGH THE PLAINS. THE MIDLEVEL TROF WILL EXIT TUESDAY EVENING.
232 PM PDT MON OCT 26 2015 CLOUDS WILL BE ON THE INCREASE TOMORROW AS AN AREA OF LOW PRESSURE NEARS THE CALIFORNIA COAST.
Initial subsident flow should enhance insolation across the area in the afternoon on Tuesday; supporting some of the guidance which forecasts temperatures as high as the low 70s in the far west and southwest counties.
AND CONDITIONS SHOULD BE FAIRLY QUIET FOR MUCH OF THE DAY AS BRIEF UPPER RIDGING POPS UP BETWEEN SYSTEMS. CLOUDS AND PRECIP ALONG WITH WARMER AIR BEHIND THE FRONT WILL KEEP LOWS OVERNIGHT IN THE UPPER 30S TO 40S. LARGE TROUGHING WILL SET IN OVER THE NORTHERN ROCKIES AND PLAINS.
Issued by National Weather Service SPRINGFIELD MO 245 PM CDT MON OCT 26 2015 A pleasant Autumn day is underway across the region this afternoon, with temperatures at 2 PM ranging from the low 60s north to upper 60s south.
626 PM EDT MON OCT 26 2015 HIGH PRESSURE BUILDING OVER NEW ENGLAND WILL BRING FAIR AND DRY WEATHER INTO TUESDAY.
THIS WILL LEAD TO GUSTY NW WINDS FOR THE DAYTIME HOURS ON WED WITH COOLER TEMPS MOVING INTO THE REGION FOR WED AFTN/WED NIGHT. AS THE UPPER RIDGE QUICKLY MOVES EAST OF THE AREA ON THU.
613 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION OVERNIGHT THROUGH TUESDAY.
ESPECIALLY ACROSS THE ERN AND NRN SECTIONS OF THE AREA AS THE UPPER LOW EJECTS NEWRD. A DRY AND WARMING TREND WILL FOLLOW FOR MID WEEK AS WE CLEAR OUT AND SEE OUR TEMPERATURES RETURN TO SEASONAL AVERAGES AFTER THIS PROLONGED PERIOD OF WET AND COOLER CONDITIONS.
623 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL CREST OVER THE REGION TONIGHT AND WILL GRADUALLY SHIFT OFFSHORE ON TUESDAY.
328 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT THROUGH TUESDAY.
WIDE SPREAD LOW CLOUDS AND GUSTY NORTHWEST WINDS PREVAIL OVER THE LOWER TEXAS GULF WATERS THIS MORNING. SKIES WILL GRADUALLY CLEAR AND WINDS WILL WEAKEN TODAY ACROSS THE GULF WATERS AS THE AREA OF LOW PRESSURE OVER SOUTHWEST LOUISIANA THIS MORNING MOVES FARTHER NORTHEAST TODAY. HIGH TEMPERATURES TODAY WILL BE IN THE LOW 80S. TUESDAY WILL BE A FEW DEGREES WARMER WITH HIGH TEMPERATURES IN THE LOW TO MID 80S.
THIS LOW WILL CONTINUE TO TRACK TO THE EAST THEN NORTHEAST.
348 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL BRING FAIR WEATHER THROUGH TUESDAY AFTERNOON.
AN AREA OF LOW PRESSURE WILL CONTINUE TO BRING LOWER CEILINGS AND STRONGER WINDS TO THE TERMINALS.
HIGH PRESSURE OVER NY STATE WILL MOVE OFF THE NEW ENGLAND COAST TUESDAY.
BUT WILL KEEP A NON MEASURABLE MENTION DUE TO THE MID LEVEL RIDGE SLIDING OVER.
TEMPERATURES OVERNIGHT WILL BE SLIGHTLY COOLER THAN LAST NIGHT. ALLOWING FOR LOWS IN THE LOW TO MID 40S. BUT AGAIN DRY AIR IN THE LOWER TROPOSPHERE WILL LIMIT COVERAGE AND QPF AMOUNTS. AN UPSTREAM DISTURBANCE WITHIN UPPER NRN STREAM TROUGH WILL DROP SOUTHEAST TUESDAY NIGHT AND BRING A 30 POPS FOR LIGHT RAIN SHOWERS TO PORTIONS OF SHERIDAN AND WRN CHERRY COUNTY WITH A SLIGHT CHANCE FOR MOST OF REMAINING FA. A RATHER STRONG COLD FRONT WILL BRING H85 WINDS OF AROUND 35KTS ACROSS THE FA.
1046 AM PDT MON OCT 26 2015 It will be cooler, mostly cloudy with scattered showers this afternoon and again tonight. Clouds should decrease late tonight into Tuesday as high pressure returns briefly to the Inland Northwest.
EXPECT LOWS IN THE LOW 40S NORTH TO UPPER 40S SOUTH.
1214 PM CDT MON OCT 26 2015 BAND OF LIGHT PRECIPITATION ACROSS CENTRAL MINNESOTA INTO NORTHERN WISCONSIN THIS MORNING IS BEING FORCED BY A WEAK SHORT WAVE TROUGH OVER NORTHWEST MINNESOTA AND FROM FRONTOGENESIS ALONG THE WEAK SURFACE BOUNDARY. THE SHORT WAVE TROUGH WILL MOVE PAST THE AREA AFTER SUNRISE WITH THE 26.
259 PM CDT MON OCT 26 2015 THE CLOSED UPPER LOW OVER SOUTHERN MISSISSIPPI HAS BECOME LESS DEFINED AND WILL EVENTUALLY BECOME AN OPEN WAVE. A MID LEVEL DRY SLOT TO THE EAST OF THE UPPER LOW HAS BEEN SHIFTING STEADILY EASTWARD AND HAS MOVED INTO SOUTHWEST ALABAMA.
305 PM EDT MON OCT 26 2015 HIGH PRESSURE BUILDING OVER NEW ENGLAND WILL BRING FAIR AND DRY WEATHER INTO TUESDAY.
123 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL RESULT IN DRY CONDITIONS AND SEASONABLE TEMPERATURES TODAY. STRENGTHENING SOUTHERLY FLOW AHEAD OF AN APPROACHING COLD FRONT WILL PULL ABUNDANT MOISTURE UP INTO THE AREA THROUGH MID WEEK.
/ISSUED 1155 AM CDT MON OCT 26 2015/ MOISTURE WRAPPING AROUND THE UPPER LOW ALONG THE LOWER MS RIVER CONTINUES TO FORCE POCKETS OF LIGHT TO MODERATE RAIN WWRD OVER PARTS OF N LA/S AR/E TX. /ISSUED 552 AM CDT MON OCT 26 2015/ UPPER LOW SLOWLY MOVG EAST OVER THE AREA. SW STATES UPPER TROF WILL BEGIN TO PUMP DEEP SW FLOW LATER IN THE WEEK.
248 PM MDT MON OCT 26 2015 UPPER LEVEL TROF WILL MOVE ACROSS COLORADO THROUGH THIS EVENING. AHEAD OF THE TROF AXIS. BEHIND THE TROF. WINDS AND SHOWERS ACROSS THE AREA WILL BE TRENDING DOWNWARD AS THE UPPER TROUGH CONTINUES TO PASS OVER THE AREA.
AN UPPER LOW WILL CONTINUE TO SHIFT EAST-SOUTHEAST ACROSS THE PACIFIC NORTHWEST TODAY. DID INCREASE POPS FOR LATE MORNING INTO EARLY AFTERNOON OVER THE EASTERN COLUMBIA BASIN DUE TO AN AREA OF SHOWERS ASSOCIATED WITH THE UPPER LOW CENTER MOVING EAST FROM YAKIMA COUNTY. ALSO ADDED A SLIGHT MENTION OF THUNDERSTORMS OVER THE GRANDE RONDE VALLEY AND WALLOWA COUNTY ZONES FOR THIS AFTERNOON AS THE UPPER LOW EXPECTED TO PASSES OVERHEAD.
A SECOND AREA OF PRONOUNCED PRECIP IS BEING OBSERVED ACROSS THE PACIFIC NORTHWEST WITH A TROUGH MOVING INLAND. HIGH PRESSURE AND QUIET WEATHER IS DOMINATING THE GREAT LAKES REGION. THE LOW/HIGH FORCING WILL SUBSIDE AND SHIFT EAST THROUGH THE MORNING. THE WARM FRONT CURRENTLY STRETCHED OUT EAST-WEST ACROSS SOUTHERN MN WILL LIFT NORTH AND THE SOUTHERLY LLJ JET WILL AGAIN INCREASE TONIGHT OVER THE DAKOTAS AND SLOWLY TRANSLATE EAST TOWARD WESTERN MN BY TUESDAY MORNING. THE MID LATITUDE CYCLONE SEASON IS UPON US.
A COLD FRONT WILL PROGRESS SOUTH ACROSS THE REGION TUESDAY NIGHT.
319 PM EDT MON OCT 26 2015 HIGH PRESSURE WILL CREST OVER THE REGION TONIGHT AND WILL GRADUALLY SHIFT OFFSHORE ON TUESDAY.
WITH THE HIGHEST RAIN CHANCES CLOSER TO THE UPPER WAVE OVER E ND. TUESDAY SHOULD SEE SLIGHTLY WARMER HIGHS WITH 850 MB TEMPS CLIMBING TO 3-6C. A STRONGER UPPER LOW WILL DIVE INTO THE N PLAINS WED NIGHT BRINGING A COLD FRONT THROUGH OVERNIGHT.
SHORT TERM: (Through Late This Afternoon) High level cloudiness continues to stream northeastward through the southeastern portion of the forecast area early this morning, mainly southeast of STL, north of the surface and upper level low over southern LA. As the surface/upper level low shifts slowly northward today, cloudiness will spread northward through the forecast area with showers moving into portions of southeast MO this afternoon. Despite the increasing cloudiness the high temperatures should be similar to yesterday if not a couple of degrees warmer, and slightly above normal for late October.
THOUGH LIGHT NORTHERLY TO EASTERLY WINDS WILL LINGER OVER THE EASTERN ZONES WHERE SURFACE RIDGING WILL BE SLOWER TO EXIT.
LOW LEVEL FLOW IS INCREASING FROM S/SE FLOW AHEAD THE LOW. THIS LOW WILL CROSS WY THIS MRNG. NOT A WHOLE LOT OF MOISTURE IS PRESENT WITH THIS SYSTEM AS 00Z KRAP AND FORECAST SOUNDINGS SHOW DRIER LAYER IN THE LOWER ATMOSPHERE. A SECOND STRONG WAVE WILL ROUND THE BACKSIDE OF A TROUGH CROSSING THE CNTRL CONUS TUES. A COLD FRONT WILL CROSS THE CWA TUE AFTN WITH NW WINDS BECOMING GUSTY BEHIND THE BOUNDARY.
THE COMPACT UPPER LOW OVER E TX/LA WILL PICK UP SPEED MOVING EAST TODAY WITH WRAP-AROUND LOW CLOUDS EXPECTED TO DISSIPATE OVER CENTRAL AND EASTERN COUNTIES BY MIDDAY.
LONGWAVE TROF IS SLOWLY PUSHING ACROSS THE NORTHERN ROCKIES THIS AM. THE WAVE WILL GRADUALLY PIVOT NORTH BUT AS WE REMAIN UNDER THE BROAD UPPER TROF WILL MAINTAIN LOW POPS/SHOWERS.
TIGHTENING CIRCULATION AROUND THE LOWER MISSISSIPPI VALLEY LOW PRESSURE SYSTEM IS PULLING MOIST AIR ACROSS THE SOUTHERN APPALACHIANS THIS AFTERNOON.
ISSUED BY NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 1020 AM PDT MON OCT 26 2015 SLIGHTLY WARMER TODAY UNDER WEAK HIGH PRESSURE WITH PATCHY EARLY MORNING LOW CLOUDS AND FOG NEAR THE COAST.