Aikyam-Lab/Synoptic-Bench huggingface dataset:
LOOK FOR LIGHT OVERALL WINDS GOING FROM NORTH TO RATHER VARIABLE DEPENDING ON THE EXACT PLACEMENT OF THE RIDGE. TEMPS HAVE BEEN ALLOWED TO FALL INTO THE LOWER 20S NORTH TO THE UPPER 20S SOUTH. WE'LL BE WARMER THAN YESTERDAY WITH SUNSHINE FILTERED THROUGH THE CIRRUS CLOUDS STREAMING IN FROM THE WEST. MOST LOCATIONS SHOULD BE AT LEAST 7-10 DEGREES WARMER THAN HIGHS YESTERDAY AS LOW LEVEL THICKNESSES BEGIN TO INCREASE. WE'LL HAVE ANOTHER COOL NIGHT TONIGHT BUT WARMER AS HIGH CLOUDS CONTINUE TO INCREASE.
241 PM EST TUE FEB 3 2015 HIGH PRESSURE ALONG WITH DRY AIR WILL REMAIN IN CONTROL THROUGH WEDNESDAY.
UPPER LOW PASSING SLOWLY WELL TO OUR SOUTH. WHILE A MODERATELY STRONG COLD FRONT WILL BE ON OUR DOOR STEP BY 18Z WEDNESDAY. SFC PRESSURE GRADIENT LIKELY NOT AS STRONG AS YESTERDAY AN UPPER LOW OVER SW OF THE BIG BEND MOVES TWD DEEP SOUTH TEXAS. MAGNITUDE OF INCREASE IN MID LEVEL HEIGHTS AND 1000-500MB THICKNESSES POINT TO HIGH TEMPS 10-15 DEGREES WARMER FOR MUCH OF THE FCST AREA COMPARED TO YESTERDAY. THE EXCEPTION BEING ACROSS THE NWRN ZONES WHERE TEMPS CLIMBED TO THE LOWER 60S ON STRENGTH OF GUSTY SW WINDS.
HIGH PRESSURE WILL BUILD ACROSS THE DESERT SOUTHWEST THROUGH THE WEEK BRINGING DRY CONDITIONS AND A WARMING TREND TO THE REGION. WATER VAPOR IMAGERY AND 03/12Z UPPER-AIR PLOTS SHOW THE UPPER LOW SPINNING OVER SOUTHERN CHIHUAHUA AND NORTHERN DURANGO MEXICO. STRONG RIDGING BEHIND THIS SYSTEM IS MOVING EASTWARD ACROSS THE EASTERN PACIFIC WATERS AND TOWARD THE WEST COAST. AS THIS AREA OF HIGH PRESSURE CONTINUES TO MOVE EAST. HIGH PRESSURE WILL BUILD ACROSS THE DESERT SOUTHWEST THROUGH THE WEEK BRINGING DRY CONDITIONS AND A WARMING TREND TO THE REGION.
914 AM PST TUE FEB 3 2015 A STAGNANT RIDGE OF HIGH PRESSURE OVER THE REGION WILL BRING MAINLY CLEAR SKIES WITH SLIGHTLY WARMER THAN NORMAL CONDITIONS MID-WEEK THROUGH THIS WEEKEND. HIGH PRESSURE ALOFT WILL CONTINUE THE CLEAR SKIES ACROSS SOUTHERN CALIFORNIA THIS AFTERNOON WITH SOME PASSING HIGH CLOUDS.
355 PM EST TUE FEB 3 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE EAST ACROSS THE GREAT LAKES TONIGHT. THE ASSOCIATED COLD FRONT WILL SAG SOUTH ACROSS THE AREA WEDNESDAY AND A WEAK WAVE OF LOW PRESSURE IS EXPECTED TO DEVELOP ON THE FRONT LATER WEDNESDAY.
1236 PM EST TUE FEB 3 2015 A WEAK AREA OF HIGH PRESSURE WILL BRING PARTIAL SUNSHINE TO THE NORTH COUNTRY TODAY.
THE UPPER LOW CONTINUES ACROSS NORTHERN MEXICO WITH RAIN SPREADING NORTHWARD ACROSS OUR CWA. THE LATEST WATER VAPOR SATELLITE LOOP SHOWS AN UPPER LOW CENTERED NEAR 25N 108W EARLY THIS MORNING. PLENTY OF MID AND UPPER LEVEL MOISTURE TO THE EAST OF THIS LOW CONTINUES TO FUNNEL NORTHWARD INTO TEXAS.
A WEAK WARM FRONT WILL MOVE NORTH ACROSS THE AREA ON WEDNESDAY BRINGING MORE LIGHT RAIN.
MODEL GUIDANCE COMING IN WARMER THAN INHERITED GRIDS AND HAVE ONLY BLENDED NEW SUPER BLEND WITH PREV FCST LOW. A COLD FRONT WILL MOVE FROM NORTH TO SOUTH AND DANGEROUS WIND CHILLS MAY DEVELOP AT LEAST IN THE NORTH.
1146 AM CST Tue Feb 3 2015 Quiet and warmer weather is expected. A weak sfc wave of low pressure will develop along the front south of the area along with post sfc frontal forcing developing precip for the cwfa Wednesday afternoon, then quickly exiting it by late evening. Farther south over the lower half of the cwfa, there will be more of a transition from rain to snow later in the afternoon and early evening.
1213 PM EST TUE FEB 3 2015 A WEAK AREA OF HIGH PRESSURE WILL BRING PARTIAL SUNSHINE TO THE NORTH COUNTRY TODAY.
330 PM EST TUE FEB 3 2015 HIGH PRESSURE WILL SHIFT OFFSHORE THIS EVENING. A BROAD AREA OF WEAK LOW PRESSURE WILL APPROACH FROM THE WEST ON WEDNESDAY AND WILL CROSS SOUTHERN QUEBEC WEDNESDAY NIGHT PULLING A TRAILING COLD FRONT THROUGH THE REGION.
COURTESY OF WEAK AND DRY NORTHWEST FLOW ALOFT AND A WEAK TROUGH EDGING SLOWLY EAST. AN ABRUPT CHANGE WILL FOLLOW AROUND MIDDAY WEDNESDAY WITH ARRIVAL OF A MODERATE STRENGTH CONTINENTAL COLD FRONT. THE TRENDS OF THE LATEST SEVERAL WRF/NAM RUNS HAVE COME AROUND TO A SLIGHTLY EARLIER AND NOTABLY STRONGER COLD FRONT PASSAGE. RMCQUEEN RATHER TRANQUIL WEATHER IS EXPECTED THROUGH MUCH OF THE EXTENDED AS THE SOUTH PLAINS IS POSITIONED BETWEEN EASTERN CONUS TROUGHING AND WESTERN CONUS RIDGING.
AND COASTAL TROUGHING ACROSS THE WESTERN GULF OF MEXICO WILL MAINTAIN A GOOD CHANCE OF RAIN THROUGH LATE TONIGHT. DRIER AIR FILTERS INTO THE AREA IN THE WAKE OF THE MID LEVEL FEATURE AND AS THE COASTAL TROUGH WEAKENS AND MOVES EAST. CLOUDS WILL DECREASE FROM WEST TO EAST THROUGH THE DAY WITH THE WARMEST TEMPERATURES WEDNESDAY AFTERNOON ACROSS THE WEST AND SLIGHTLY COOLER ACROSS THE EAST. HIGH TEMPERATURES WEDNESDAY WILL RANGE FROM THE UPPER 60S WEST TO THE LOW TO MID 60S NEAR THE COAST.
HIGH PRESSURE CENTER OVER THE TN VALLEY HAS SERVED TO ANCHOR VERY DRY AIR OVER THE REGION WITH WIDESPREAD DEWPOINTS IN THE 20S. ISENTROPIC ASCENT IN PROXIMITY TO THE LOW WILL PRODUCE WIDESPREAD RAINS OVER THE NORTHERN GULF AND INTO LA/MS. DOUBTS EXIST ON JUST HOW FAR NORTH MEASURABLE RAIN CAN MAKE IT WITH THIS SYSTEM AS VERTICAL MOTION WANES THE FURTHER NORTH AWAY FROM THE LOW CENTER AND THE CONTINUED EASTERLY LOW LEVEL FLOW WHICH SHOULD CONTINUE TO REINFORCE THE DRY AIR IN THE LOWER LEVELS.
320 PM CST TUE FEB 3 2015 A RAW DAY OUT THERE PER THE OVERCAST AND PERIODS OF LIGHT RAIN AND/OR DRIZZLE KEEPING AFTERNOON TEMPERATURE READINGS REGULATED TO THE LOWER TO MIDDLE 40S. THE LOW-MID LEVEL PRESSURE PATTERN ACROSS THE EASTERN TWO THIRDS OF THE UNITED STATES. THAT OF MID ATLANTIC HIGH PRESSURE STRETCHED BACK ACROSS THE STATE WITH LEESIDE AND SOUTHERN GULF TROUGHING WEDGED ALONG EITHER SIDE OF THE RIDGE AXIS.
429 PM EST TUE FEB 3 2015 HIGH PRESSURE WILL MOVE TO THE EAST TONIGHT. LOW PRESSURE WILL APPROACH WEDNESDAY THEN CROSS THE REGION WEDNESDAY NIGHT.
344 PM EST TUE FEB 3 2015 HIGH PRESSURE ALONG WITH DRY AIR WILL REMAIN IN CONTROL THROUGH WEDNESDAY.
343 PM CST TUE FEB 3 2015 WE WILL HAVE TO DEAL WITH SOME LOW CLOUDS AND LIGHT RAIN CHANCES ALONG WITH A MID WEEK COLD FRONT BEFORE THINGS WARM UP SIGNIFICANTLY FOR THE LATTER PART OF THE WEEK INTO THE WEEKEND. WATER VAPOR IMAGERY THIS AFTERNOON SHOWS A COMPACT UPPER LOW OVER NORTHEAST MEXICO QUICKLY MOVING TO THE NORTHEAST. TOMORROW WILL BE ABOUT 5 DEGREES WARMER THAN TODAY ACROSS MOST OF THE AREA AHEAD OF A STRONG COLD FRONT. WESTERLY WINDS AT 850MB WILL ALLOW TEMPS TO WARM INTO THE LOW/MID 60S WEST OF I-35 BY AFTERNOON BUT A STRONG COLD FRONT MOVES THROUGH NORTH TEXAS TOMORROW EVENING. TEMPERATURES WILL BE BELOW FREEZING NORTHWEST OF THE METROPLEX BUT THE DURATION IS EXPECTED TO BE SHORT AND ANY PRECIPITATION TOO LIGHT FOR SIGNIFICANT IMPACTS.
219 PM EST TUE FEB 3 2015 FAST MOVING LOW PRESSURE WILL SPREAD SOME LIGHT SNOW OVER THE REGION TONIGHT AND EARLY WEDNESDAY. A WEDNESDAY NIGHT COLD FRONT IS LIKELY TO BRING SNOW SHOWERS AND A REINFORCEMENT OF THE COLD AIR. MID CLOUD DECK IS ALREADY BEGINNING TO OVERSPREAD THE REGION IN ADVANCE OF THE FAST MOVING LOW PRESSURE SYSTEM THAT WILL MOVE ACROSS THE GREAT LAKES OVERNIGHT TONIGHT. LOW PRESSURE SYSTEM WILL QUICKLY MAKE ITS EXIT WEDNESDAY MORNING. WITH A COLD FRONT EXPECTED TO MAKE IT'S APPROACH WEDNESDAY NIGHT. THE MODEL SOLUTIONS DO NOT AGREE IN THE SPEED AND STRENGTH OF THE COLD FRONT PASSAGE OVERNIGHT WEDNESDAY. A STRONGER UPPER TROUGH WOULD SUPPORT MORE LIFT FOR SNOW THAN A FASTER FLAT TROUGH.
1000 AM MST TUE FEB 3 2015 HIGH PRESSURE OVER THE DESERT SOUTHWEST WILL BRING DRY CONDITIONS.
A FRONT OVER SOUTHERN OREGON WILL SLOWLY LIFT NORTH TODAY INTO THIS EVENING AS HIGH PRESSURE BUILDS OVER CALIFORNIA.
642 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE CAROLINA COAST WILL MOVE UP THE EAST COAST TONIGHT AND DEEPEN INTO A NOREASTER ON TUESDAY. ARCTIC HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH TUESDAY.
521 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE MIDDLE ATLANTIC COAST TONIGHT WILL CONTINUE MOVING NORTHEASTWARD.
524 PM CST MON JAN 26 2015 DOMINATE FEATURE THIS AFTN PER SATL PIX IS WELL AMPLIFIED/STAGNANT UPSTREAM RIDGE OVER THE WRN CONUS FORMING INTO A REX BLOCKING PATTERN.
318 PM MST MON JAN 26 2015 WITH THE HIGH PRESSURE RIDGE AXIS REMAINING OVER COLORADO TONIGHT. JUST DOWNSTREAM OF THE UPPER RIDGE AXIS. THE WARM AND DRY WEATHER WILL BE PRETTY MUCH DONE BEGINNING TUESDAY NIGHT AS THE UPPER RIDGE MOVES TO OUR EAST.
925 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE CAROLINA COAST WILL MOVE UP THE EAST COAST TONIGHT AND DEEPEN INTO A NOREASTER ON TUESDAY. ARCTIC HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH TUESDAY.
333 PM MST MON JAN 26 2015 A LOW PRESSURE CENTER OFF THE BAJA COAST WILL MOVE NORTHWARD AND INTO IDAHO BY TUESDAY NIGHT.
621 PM EST MON JAN 26 2015 LIGHT TO OCCASIONALLY MODERATE SNOW WILL SHIFT EASTWARD TONIGHT AS LOW PRESSURE DEVELOPS TOWARD THE COAST. GIVEN THAT QPF SHOULD BECOME MUCH LIGHTER OTHER THAN IN THE UPSLOPE AREAS SUCH AS THE RIDGES. SNOW SHOWERS AND FLURRIES SEEM LIKELY TO CONTINUE IN THE RIDGES INTO THE DAYTIME ON TUESDAY. DUE TO THE FACT THAT DAYTIME TEMPERATURES WERE AROUND FREEZING IN MANY SPOTS SOUTH OF THE TURNPIKE.
THE ANOMALOUS WRN USA RIDGE /500 MB HEIGHTS 2 STANDARD DEVIATIONS ABOVE NORMAL/ WILL GET SHUNTED EASTWARD ONTO THE PLAINS AS THE LOW OFF CA OPENS UP AND LIFTS NORTHWARD. AN UPPER LEVEL WAVE WILL MOVE INTO THE UPPER RIDGE LATE TUESDAY NIGHT.
944 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE MIDDLE ATLANTIC COAST TONIGHT WILL CONTINUE MOVING NORTHEASTWARD.
915 PM EST MON JAN 26 2015 LIGHT TO OCCASIONALLY MODERATE SNOW WILL SHIFT EASTWARD TONIGHT AS LOW PRESSURE DEVELOPS TOWARD THE COAST. GIVEN THAT QPF SHOULD BECOME MUCH LIGHTER OTHER THAN IN THE UPSLOPE AREAS SUCH AS THE RIDGES. THIS INCLUDES THE RIDGES AS WELL AS FOREST. INCREASINGLY EFFICIENT SNOW SHOWERS IN THE RIDGES SHOULD ALLOW FOR A CONTINUATION OF ACCUMULATION. DUE TO THE FACT THAT DAYTIME TEMPERATURES WERE AROUND FREEZING IN MANY SPOTS SOUTH OF THE TURNPIKE.
/ISSUED 250 PM EST MON JAN 26 2015/ A SERIES OF COLD FRONTS WILL REINFORCE BELOW AVERAGE TEMPERATURES INTO SOUTH FLORIDA UNTIL LATE WEEK. AS HIGH PRESSURE DOMINATES.
548 PM CST MON JAN 26 2015 NARROW AND SHARP UPPER LEVEL HIGH PRESSURE RIDGE AXIS WILL TRANSLATE OVERHEAD TONIGHT AND EARLY TUESDAY. AS SUBTROPICAL MOISTURE GETS PULLED NEWD IN THE CIRCULATION AROUND AN UPPER LOW OFF THE BAJA COAST. THIS LOW WILL WEAKEN AND LIFT N-NEWD TONIGHT AND TUESDAY. WITH SOME LOWER 40S OUT IN THE LOW ROLLING PLAINS.
CLOUDS CLEARING OUT AS UPPER TROUGH PULLS OUT OF THE AREA. TEMPERATURES RANGING FROM THE LOW 40S IN THE EAST TO 50 IN THE WEST.
303 PM MST MON JAN 26 2015 TEMPERATURES HAVE JUMPED WELL INTO THE 50S ACROSS THE LOWER VALLEYS THIS AFTERNOON. ONE DEGREE OFF THE RECORD AND TIED FOR OUR WARMEST DAY SINCE THE LAST DAY OF NOVEMBER AS STRONG RIDGING REMAINS PARKED OVER THE ROCKIES. LIFTING AN UPPER LOW OFF THE BAJA CALIFORNIA COAST NORTH NORTHEAST ACROSS NEVADA AND WESTERN UTAH. THE BEST DYNAMICS WITH THIS SYSTEM WILL BE PASSING WELL TO OUR WEST AND WITH SOME STRETCHING OF VORTICITY FIELDS AND SINKING MOTIONS UNDER THE RIDGE. AS THE SYSTEM GETS CAUGHT UP INTO THE RIDGE. THE DAMPENED TROUGH MOVES EAST ACROSS NE UT/NW CO ON WED. A LARGE-SCALE MEAN UPPER RIDGE WILL PERSIST ACROSS THE WESTERN STATES THE LAST HALF OF THE WEEK RESULTING IN CONTINUED SPLITTING FLOW IN OFF THE PACIFIC OCEAN.
DRY AND CHILLY WEST TO NORTHWEST FLOW ON THE BACKSIDE OF DEVELOPING LOW PRESSURE OFF THE MID ATLANTIC CONTINUES THIS EVENING. LARGE SCALE SUBSIDENCE ON THE BACKSIDE OF A WELL DEVELOPED TROUGH IN THE MID AND UPPER LEVELS OF THE ATMOSPHERE WILL KEEP SKIES CLEAR TONIGHT AND TOMORROW. EXPECT TEMPERATURES TO DROP INTO THE LOW 40S MOST PLACES ALONG AND WEST OF I-95 AND SLIGHTLY WARMER RIGHT ALONG THE COAST (ABOUT 5 TO 10 DEGREES BELOW NORMAL FOR THIS TIME OF YEAR).
552 PM CST Mon Jan 26 2015 Today's short wave diving into the mean eastern North American trof ended up remaining a little more robust than anticipated, despite indications yesterday that it would be much more sheared out and weaker by the time it arrived. One thing that will be need to be watched closely across the entire forecast area, at least through this evening, is the threat for freezing drizzle. One more cool day (but near normal for late January) is expected across central and southeast Illinois on Tuesday as northerly low level flow develops ahead of an approaching ridge of high pressure.
558 PM CST MON JAN 26 2015 STRONG WARM FRONT EXTENDED FROM EXTREME WESTERN WI TO NEAR OTTUMWA IA AND THEN INTO NORTH TX. DOPPLER RADAR/SURFACE OBS WERE INDICATING THE SNOW HAS SHIFTED INTO SE WI/NE IL WITH AN AREA OF FREEZING DRIZZLE IN SW WI. FORECAST FOCUS ON SOME FREEZING DRIZZLE EARLY THIS EVENING OTHERWISE MILDER TEMPERATURES. AREAS OF LIGHT FREEZING DRIZZLE IN NW IL SHOULD END EARLY THIS EVENING BUT CLOUDS SHOULD LINGER ACROSS MUCH OF THE CWA DURING THE NIGHT. FORECAST SOUNDINGS INDICATE A STRENGTHENING INVERSION AT 900 MB WHICH SHOULD TRAP THE LOW LEVEL MOISTURE BELOW. THE WARM FRONT WILL CONTINUE TO PUSH WEST TO EAST ACROSS THE CWA WHICH WILL BRING A WARMER NIGHT. I WILL FORECAST MAXIMUM TEMPERATURES IN THE LOWER 30S NE TO THE LOWER 40S SW.
648 PM MST MON JAN 26 2015 TEMPERATURES HAVE JUMPED WELL INTO THE 50S ACROSS THE LOWER VALLEYS THIS AFTERNOON. ONE DEGREE OFF THE RECORD AND TIED FOR OUR WARMEST DAY SINCE THE LAST DAY OF NOVEMBER AS STRONG RIDGING REMAINS PARKED OVER THE ROCKIES. LIFTING AN UPPER LOW OFF THE BAJA CALIFORNIA COAST NORTH NORTHEAST ACROSS NEVADA AND WESTERN UTAH. THE BEST DYNAMICS WITH THIS SYSTEM WILL BE PASSING WELL TO OUR WEST AND WITH SOME STRETCHING OF VORTICITY FIELDS AND SINKING MOTIONS UNDER THE RIDGE. AS THE SYSTEM GETS CAUGHT UP INTO THE RIDGE. THE DAMPENED TROUGH MOVES EAST ACROSS NE UT/NW CO ON WED. A LARGE-SCALE MEAN UPPER RIDGE WILL PERSIST ACROSS THE WESTERN STATES THE LAST HALF OF THE WEEK RESULTING IN CONTINUED SPLITTING FLOW IN OFF THE PACIFIC OCEAN.
755 PM PST MON JAN 26 2015 Areas of low clouds and fog will persist across portions of Inland Northwest as high pressure remains strong.
IN THE LOW LEVELS OF THE ATMOSPHERE. A RIDGE OF HIGH PRESSURE WILL BUILD EASTWARD ACROSS THE EASTERN GULF OF MEXICO OVERNIGHT. A TROUGH OF LOW PRESSURE WILL MOVE EASTWARD OVER THE FLORIDA PENINSULA TONIGHT.
215 PM PST MON JAN 26 2015 A COUPLE OF LOW PRESSURE SYSTEMS WILL IMPACT THE AREA THIS WEEK.
The 4 pm regional surface analysis showed a developing low pressure system, part of the large & powerful snow storm that will affect much of the Mid Atlantic and Northeast states, off the DELMARVA coast. Vapor imagery and upper air data showed a long wave trough over much of the eastern U. , and embedded short wave troughs may bring the northern portions of our forecast area some clouds at times through Tuesday. Though the airmass across our region was cool and dry, we expect that the surface winds will not quite go calm overnight, which should prevent low temperatures from reaching freezing.
536 PM CST Mon Jan 26 2015 Temperatures have warmed nicely this afternoon under mostly sunny skies, with readings ranging from the the low to mid 50s across southeastern Kansas and western Missouri, to the upper 40s across south central Missouri and the eastern Ozarks as of 2 PM. Heights aloft will continue to rise heading into the day Tuesday as an upper level ridge begins to move east toward the region. Winds on Tuesday will be light and variable for the most part, courtesy of a bit of surface ridging that will poke into the area from the northeast.
905 PM EST MON JAN 26 2015 THIS EVENINGS SOUNDINGS REFLECTS THE DRIER COOLER AIR SHOWING ON WV IMAGERY WITH PW AT 0. THE UPPER-LEVEL PATTERN FEATURES A LARGE RIDGE OUT WEST WITH A DEEP UPPER TROUGH OVER THE EAST.
652 PM EST MON JAN 26 2015 AVIATION A RIDGE OF HIGH PRESSURE WILL BUILD INTO LOWER MICHIGAN TONIGHT AND TUESDAY PROVIDING THE REGION WITH GENERALLY DRY AND COLD WEATHER.
622 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE CAROLINA COAST WILL MOVE UP THE EAST COAST TONIGHT AND DEEPEN INTO A NOREASTER ON TUESDAY. ARCTIC HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH TUESDAY.
TEMPERATURES WEST OF THE FRONT HAVE CLIMBED WELL INTO THE 40S ACROSS MOST OF THE REGION WITH DEW POINTS IN THE LOW TO MID 30S. AND THE FACT THE SOUTHERLY WINDS ON THE BACK SIDE OF THE RIDGE DONT ARRIVE UNTIL LATE IN THE DAY. EARLY AFTERNOON WATERVAPOR IMAGERY TOGETHER WITH GFS 500MB HEIGHTS AND WINDS SHOWED A BROAD AREA OF NORTHEAST FLOW ACROSS THE CENTRAL CONUS SANDWICHED BETWEEN THE NEGATIVELY TILTED RIDGE ALONG THE SPINE OF THE ROCKIES. AND MORE NOTABLY THE NEGATIVE TILTED UPPER LEVEL TROUGH DRIVING THE POWERFUL NOREASTER OVER THE NEW ENGLAND AREA.
AT THE SAME TIME A WEAK UPPER TROUGH IS EXPECTED TO MOVE NORTH INTO NEVADA TUESDAY AND THE MODELS SHOW SOME QPF BARELY MAKING IT INTO SOUTHERN MODOC AND SISKIYOU COUNTY.
UPPER LEVEL RIDGE OF HIGH PRESSURE OVER COLORADO HAS BROUGHT SUNNY SKIES AND WARMING TEMPERATURES ALOFT WHICH HAS ALLOWED TEMPERATURES TO GET CLOSE TO TYING RECORD HIGHS TODAY. SHOULD BE ANOTHER MILD NIGHT AS THE UPPER RIDGE AXIS SLOWLY SHIFTS EASTWARD OVER CO. LEE TROFFING SHOULD KEEP A RIBBON OF UPPER 30S FOR LOWS ALONG THE LOWER EASTERN SLOPES OF THE SE MTS/ADJACENT PLAINS. CHANGES START TO COME IN FOR TUESDAY AS THE TROF AXIS EXTENDING ACROSS THE DESERT SOUTHWEST WEAKENS AND LIFTS TO THE NORTHEAST. IT COULD BE A BATTLE BETWEEN THE HIGH CLOUDS TEMPERING HEATING SOME.
817 PM MST MON JAN 26 2015 A LOW PRESSURE SYSTEM WILL CONTINUE TO AFFECT THE REGION TONIGHT WITH PERIODS OF LIGHT RAIN. ANOTHER LOW PRESSURE SYSTEM WILL BRING ADDITIONAL MOISTURE AND RENEWED HIGHER CHANCES FOR PRECIPITATION LATE IN THE WEEK AND INTO THE WEEKEND. RAINFALL HAS LARGELY ENDED ACROSS SOUTHEAST CALIFORNIA AND FAR SOUTHWEST ARIZONA AS LOW PRESSURE CONTINUES TO ROTATE THROUGH THE AREA THIS EVENING. MODELS CONTINUE TO PUSH THE LOW OUT OF THE AREA RAPIDLY OVERNIGHT. THIS APPEARS TO BE EVIDENT ON RADAR NEAR NOGALES ALTHOUGH IT WILL STILL BE SEVERAL MORE HOURS BEFORE ANY OF THIS RAINFALL MAKES INTO THE LOWER AZ DESERTS.
/ISSUED 357 PM CST MON JAN 26 2015/ FAIRLY BENIGN WEATHER EXPECTED FOR THE NEXT FEW DAYS AS AN UPPER LEVEL RIDGE OF HIGH PRESSURE TRANSLATES ACROSS THE REGION.
THE LAST OF THE LOW CLOUDS ARE IN THE PROCESS OF MOVING OFFSHORE WITH MOSTLY CLEAR SKIES EXPECTED OVER LAND AREAS FOR THE REST OF THE OVERNIGHT PERIOD. THE WIND WILL MAKE IT FEEL COOLER WITH WIND CHILL READINGS IN THE UPPER 20S TO LOWER 30S AREA-WIDE LATE TONIGHT INTO THE EARLY TUESDAY MORNING. TUESDAY WILL BE A COOLER THAN NORMAL DAY WITH BREEZY CONDITIONS EXPECTED.
WEAK LOW PRESSURE TO OUR SOUTH WILL BRING A SLIGHT CHANCE OF LIGHT RAIN SHOWERS TO THE INTERIOR ON TUESDAY.
631 PM EST MON JAN 26 2015 LOW PRESSURE OFF THE MIDDLE ATLANTIC COAST TONIGHT WILL CONTINUE MOVING NORTHEASTWARD.
701 PM EST MON JAN 26 2015 LIGHT TO OCCASIONALLY MODERATE SNOW WILL SHIFT EASTWARD TONIGHT AS LOW PRESSURE DEVELOPS TOWARD THE COAST. GIVEN THAT QPF SHOULD BECOME MUCH LIGHTER OTHER THAN IN THE UPSLOPE AREAS SUCH AS THE RIDGES. SNOW SHOWERS AND FLURRIES SEEM LIKELY TO CONTINUE IN THE RIDGES INTO THE DAYTIME ON TUESDAY. DUE TO THE FACT THAT DAYTIME TEMPERATURES WERE AROUND FREEZING IN MANY SPOTS SOUTH OF THE TURNPIKE.
209 PM PST MON JAN 26 2015 A LOW PRESSURE SYSTEM PUSHES NORTH INTO THE SIERRA AND WESTERN NEVADA TONIGHT BRINGING PERIODS OF LIGHT VALLEY RAIN AND MOUNTAIN SNOW SHOWERS THROUGH TUESDAY.
STRONG RIDGE ALOFT WILL REMAIN IN PLACE THROUGH TUESDAY. MOS GUIDANCE SHOWS HIGHS A FEW DEGREES WARMER ON TUESDAY WHICH MEANS WE WILL BE GETTING CLOSE TO 70 DEGREES.
THE NORTHWEST WINDS WILL PREVAIL THROUGH TUESDAY MORNING BUT SHOULD GRADUALLY BECOME EAST/SOUTHEAST TUESDAY AFTERNOON AS A LEE TROUGH DEVELOPS ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS. /ISSUED 308 PM CST MON JAN 26 2015/ AN UPPER LEVEL RIDGE OVER THE CENTRAL PART OF THE COUNTRY WILL BRING ABOVE-NORMAL TEMPERATURES AND GENERALLY NICE WEATHER ACROSS NORTH TEXAS FOR THE NEXT COUPLE OF DAYS. AN UPPER LEVEL LOW OFF THE SOUTHERN CALIFORNIA COAST WILL BE WORTH WATCHING AS IT OPENS UP AND BEGINS TO ROTATE AROUND THE NORTHERN PERIPHERY OF THE RIDGE.
WINDS WILL BECOME NORTH/NORTHWEST AFTER A WEAK COLD FRONT MOVES INTO THE REGION TONIGHT.
435 PM PST MON JAN 26 2015 UPDATED AVIATION SECTION A COUPLE OF LOW PRESSURE SYSTEMS WILL IMPACT THE AREA THIS WEEK.
822 PM MST MON JAN 26 2015 UPPER RIDGE AXIS STRETCHES FROM EASTERN COLORADO INTO NORTHERN IDAHO. THIS UPPER RIDGE WILL PROVIDE A DRY AND MILD NIGHT.
WEAK UPPER LEVEL DISTURBANCES EMBEDDED IN UPPER LEVEL TROUGHING PROGRESSING EWD THRU 27/24Z WILL RESULT IN SOME ISO/SCT SNOW SHWRS THRU AT LEAST 27/06Z ACROSS ALL OF MID STATE. BUILDING RIDGING INFLUENCES FROM THE W SFC/ALOFT AFTER 27/17Z W TO 27/19Z E SHOULD RESULT IN EVENTUAL CEILING EROSIONS. THIS WILL BE CAUSED BY A WEAK DISTURBANCE THAT WILL PUSH DOWN THE BACKSIDE OF THE LARGER TROUGH OVER NEW ENGLAND THIS AFTERNOON. ALONG WITH BRIDGES AND OVERPASSES.
EXPECT THE MAIN AREA OF STRATUS AND PATCHY FOG TO BE ACROSS THE LOWER TREASURE VALLEY/WEISER BASIN AND LONG VALLEY LATER TONIGHT THROUGH TUESDAY. WINDS AND HIGH/MID CLOUDS WILL INCREASE AHEAD OF AN UPPER LOW OFF THE SOUTHERN CA COAST WHICH SHOULD LIFT ACROSS THE GREAT BASIN ON TUESDAY. UPPER LEVEL RIDGE WILL BEGIN TO BREAK DOWN LATER TONIGHT AS A TROUGH APPROACHES THE AREA FROM THE SOUTH.
WINTER WEATHER ADVISORY STILL LOOKS ON TRACK FOR THE SMOKIES, AND STILL HAVE BETTER CHANCES FOR ACCUMULATIONS IN THE HIGHER ELEVATIONS. CHATTANOOGA AIRPORT, TN 31 46 28 48 / 30 10 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 29 41 22 44 / 30 20 0 0 OAK RIDGE, TN 29 41 23 45 / 30 20 0 0 TRI CITIES AIRPORT, TN 26 37 18 41 / 30 30 0 0 TN.
WINDS WILL BECOME NORTH/NORTHWEST AFTER A WEAK COLD FRONT MOVES INTO THE REGION TONIGHT. THE LOW CLOUDS HAVE THINNED AND MOVED EAST TODAY. HAVE NOT SEE THE LOWER VALUES EXPECTED WITH ONLY SOME AREAS SEEING RH VALUES INTO THE 30S PERCENT RANGE. ALOFT THE DEEP UPPER TROUGH WAS OVER THE EASTERN SEABOARD.
446 PM MST MON JAN 26 2015 18Z WATER VAPOR IMAGERY INDICATED CWA ON EASTERN PERIPHERY OF 582 DM RIDGE OVER WESTERN COLORADO. MAIN FORECAST CONCERN WILL BE HOW MUCH WARMER THINGS GET TOMORROW AND IF COMBINATION OF WARMTH/WIND WILL CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS SOUTHERN PORTION OF CWA. TEMPERATURES ALOFT WILL WARM ABOUT 5C BY 12Z TOMORROW AND WITH RIDGE AXIS LIKELY KEEPING ANY MEANINGFUL CIRRUS TO THE WEST EXPECT A STRONG WARM UP TOMORROW WITH TEMPS EASILY REACHING THE MID 70S IN MANY LOCATIONS. BUT WITH FULL SUN AND SOUTHWESTERLY WINDS AM LEANING TOWARDS A WARMER SOLUTION THAN CURRENT DATA SUGGESTS. DEWPOINTS FALLING INTO THE LOWER 20S NOT OUT OF THE QUESTION.
The best precip chances will be over the high Sierra where 1-2 inches of snow will fall above 6000 feet. Upper low is spinning just west of San Diego.
TEMPERATURES AVERAGE ABOUT 2 TO 3 DEGREES LOWER /COOLER/ BELOW 7000 FEET THAN YESTERDAY AT THIS TIME AND ABOUT 4 TO 5 DEGREES HIGHER /WARMER/ ABOVE 7000 FEET. TEMPERATURES DID MANAGE TO WARM A FEW DEGREES WARMER THAN EXPECTED DUE TO DRYNESS OF THE AIR MASS.
539 PM CST MON JAN 26 2015 HIGH PRESSURE RIDGE WILL SHIFT SLOWLY EAST OVERNIGHT AND BE OVER CENTRAL MINNESOTA AND INTO NW IOWA BY MORNING. BEST POTENTIAL WILL BE OVER THE FAR WEST AS WINDS DIMINISH AS THE RIDGE NEARS FROM THE WEST.
MID LEVEL TROUGH MOVING SOUTHEAST THROUGH THE AREA EARLY TODAY.
BETTER CHANCE OF STORMS WILL BE THIS EVENING NEAR AND NORTH OF THE RETREATING WARM FRONT ACROSS KANSAS. WHICH WILL PUSH A COLD FRONT THROUGH A GOOD PORTION OF OKLAHOMA AND WESTERN NORTH TEXAS.
HIGH PRESSURE OVER ONTARIO WILL CAUSE FAIR WEATHER OVER THE AREA TONIGHT. HIGHS TODAY WILL BE IN THE LOW TO MID 30S. WITH LOWS TONIGHT IN THE LOW TO MID 20S. A WEAK UPPER UPPER LEVEL TROF AND AN ASSOCIATED CLIPPER TYPE OF SYSTEM WILL RACE SOUTHEAST ACROSS THE FORECAST AREA MONDAY.