Aikyam-Lab/Synoptic-Bench huggingface dataset:
WESTERN AREAS HAD TO GO UP A DEG OR TWO AND EASTERN WERE GENERALLY STEADY WITH FORT PAYNE EXPECTED TO GET AROUND FREEZING TONIGHT. WITH A COLD FRONT APPROACHING ON THURSDAY. THE TIMING OF THE LOWER OF THE CIGS COULD BE OFF +- AN HOUR OR TWO IN EITHER DIRECTION. THIS HIGH SLIDING TO THE EAST HAS RESULTED IN LIGHT/VARIABLE WINDS THIS MORNING. MID AFTERNOON HIGH TEMPERATURES HAVE RISEN INTO THE LOW/MID 50S. A NW FLOW CONTINUED FROM THE NE PLAINS TO THE SE COAST AS WEAK UPPER RIDGING MOVES ACROSS THE DEEP SOUTH. ALONG WITH A UPPER TROUGH NOW PROGRESSING EASTWARD ACROSS THE EASTERN PLAINS WILL BRING INCREASING CLOUDS AND A CHANCE OF RAIN TO THE AREA BEGINNING TOMORROW. A COLD FRONT SHOULD MOVE ACROSS THE AREA SUN EVENING. HIGHS DURING THE WEEKEND WILL REMAIN A TAD COOLER THAN NORMAL.
THESE WILL TAPER OFF THIS EVENING AS A TRANSIENT UPPER RIDGE SLIDES IN LATER TONIGHT. THE CLOUDS ARE AHEAD OF AN ELONGATED PACIFIC TROUGH THAT REACHES THE WEST COAST THURSDAY NIGHT. AN UPPER LOW DEVELOPS IN THE SOUTHERN PORTION OF THIS TROUGH AND CIRCULATES A GOODLY AMOUNT OF PACIFIC MOISTURE INTO THE DESERT SOUTHWEST.
CHATTANOOGA AIRPORT, TN 32 54 34 46 / 10 30 20 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 29 51 32 39 / 10 30 30 10 OAK RIDGE, TN 28 49 32 41 / 10 30 30 10 TRI CITIES AIRPORT, TN 21 50 30 36 / 10 50 60 10.
HIGH PRESSURE RIDGE ALOFT AND ON THE SURFACE CONTINUE TO SHIFT EAST FROM THE FORECAST AREA. COLD FRONT MOVES SWD ACROSS AREA. WHICH IS ONLY A FEW DEGREES COOLER THAN THE NORMAL MAX TEMP FOR TODAY. THE NEXT COLD FRONT SHOULD BEGIN TO MOVE ACROSS THE AREA FROM NW TO SE SHORTLY AFTER SUNRISE THURSDAY. HIGH TEMPS THURSDAY WILL BE NOTICEABLY COOLER NORTH OF A LINE FROM KJSO-KELD WHERE SOME PLACES MAY BE 15-20 DEGREES COOLER THAN TODAY.
712 PM EST WED JAN 28 2015 HIGH PRESSURE EXTENDING FROM THE GREAT LAKES TO THE GULF COAST WILL BUILD EAST ACROSS THE AREA TONIGHT AND MOVE OFFSHORE THURSDAY. A COLD FRONT WILL MOVE ACROSS THE REGION THURSDAY NIGHT.
VFR WEATHER CONDITIONS SHOULD PREVAIL THROUGH THE FORECAST PERIOD ALTHOUGH CEILINGS WILL DROP TO AROUND FIVE THOUSAND FEET AROUND 20Z AND A MOISTURE STARVED COLD FRONT BUILDS THROUGH THE REGION.
HIGH PRESSURE WILL BUILD OVER THE FORECAST AREA TONIGHT INTO THURSDAY.
BEFORE INCREASING TO 15-20 KNOTS FROM THE NORTH/NORTHEAST BY EARLY THURSDAY MORNING BEHIND A COLD FRONT SET TO COME THROUGH OVERNIGHT. A COLD FRONT WILL THEN FOLLOW AFTER MIDNIGHT WITH THE WINDS SWINGING AROUND TO THE NORTH. THE UPPER LOW CURRENTLY OFF THE CALIFORNIA COAST IS FORECAST TO DIP A LITTLE FARTHER SOUTH THAN PREVIOUSLY FORECAST SHIFTING SOME OF THE BEST LARGE SCALE LIFT TO THE SOUTH OF THE AREA.
SFC COLD FRONT MOVG ACROSS THE REGION WILL BE A DRY ONE WITH NO PRECIPITATION EXPECTED. HELPING TO FLATTEN THE UPPER RIDGE THAT BROUGHT THE UNSEASONABLY WARM WEATHER TO THE AREA THE PAST COUPLE OF DAYS. DESPITE THE LOWER MID AND UPPER-LEVEL HEIGHTS ASSOCIATED WITH THE UPPER TROUGH. TEMPERATURES THIS AFTERNOON ONCE AGAIN SOARED INTO THE UPPER 60S TO THE LOWER 70S. IN ADDITION WINDS WERE BREEZY THIS AFTERNOON FROM A TIGHTENING PRESSURE GRADIENT ON THE SOUTH SIDE OF THE UPPER TROUGH. THE UPPER TROUGH WILL PUSH A COLD FRONT INTO THE AREA LATER TONIGHT. ATTENTION THEN TURNS TO AN UPPER-LEVEL TROUGH THAT WILL LIFT OUT OF THE EASTERN PACIFIC THURSDAY.
811 PM CST WED JAN 28 2015 HAVE EXPANDED THE ADVISORY TO THE ENTIRE AREA AS MORE WIDESPREAD REPORTS OF FREEZING DRIZZLE HAVE STARTED TO COME IN AND CONDITIONS APPEAR TO BECOMING FAVORABLE FOR FZDZ OVER MUCH OF THE AREA. A CHECK ACROSS THE CWA INDICATES ANY FREEZING DRIZZLE IS QUITE LOCALIZED AT THIS POINT. THE LOW CLOUDS KEPT TEMPERATURES FROM REACHING THE FREEZING MARK AT MOST LOCATIONS. THE MAIN FOCUS FOR TONIGHT WILL BE THE POTENTIAL FOR FREEZING DRIZZLE AND ALSO THE CHANCE FOR SOME LIGHT SNOW OR SLEET/FREEZING RAIN. HAVE OPTED TO ISSUE A FREEZING RAIN ADVISORY FOR A PORTION OF NW WI. AND WITH THE PASSAGE OF A COLD FRONT LATER TONIGHT AND ON THURSDAY.
MODELS HAVE SOME IN THE LOWER AND MID LEVELS FOR MUCH OF THE CWA OVERNIGHT. THURSDAY'S HIGHS LOOK TO BE 3-6 C COOLER THAN THIS AFTERNOON'S HIGHS.
Clouds will increase across the PAH forecast area tonight with the approach of a cold front.
Model guidance trend has been upward with regards to afternoon highs, especially in the western areas and thus trended slightly warmer than previous forecast. Will likely see readings in the lower 70s across southeast Kansas and far western Missouri. but will drag a cold front across the area late Wednesday night into the early morning hours of Thursday.
618 PM EST WED JAN 28 2015 HIGH PRESSURE WILL MOVE IN FROM THE OHIO VALLEY TONIGHT AND OFFSHORE ON THURSDAY.
COLD FRONT MOVES SWD ACROSS AREA. WHICH IS ONLY A FEW DEGREES COOLER THAN THE NORMAL MAX TEMP FOR TODAY. THE NEXT COLD FRONT SHOULD BEGIN TO MOVE ACROSS THE AREA FROM NW TO SE SHORTLY AFTER SUNRISE THURSDAY. HIGH TEMPS THURSDAY WILL BE NOTICEABLY COOLER NORTH OF A LINE FROM KJSO-KELD WHERE SOME PLACES MAY BE 15-20 DEGREES COOLER THAN TODAY.
LOW PRESSURE JUST WEST OF KENORA AT MID AFTERNOON MOVING EAST. LOW LEVEL MOISTURE LOOKS TO REMAIN IN PLACE TONIGHT WITH BUFKIT SOUNDINGS SHOWING THE POTENTIAL FOR SOME PATCHY FREEZING DRIZZLE/FLURRIES IF ANY PRECIP FALLS. HIGH PRESSURE AND DRIER COLDER AIRMASS MOVING IN SHOULD ALLOW FOR SOME CLEARING.
THE NAM12 TRIES TO RE-ESTABLISH THE RIDGE INTO THE COASTAL AREAS TONIGHT. AND IN A FEW AREAS INTO THE LOW 80S. TOMORROW'S TEMPERATURES WILL A BIT COOLER DUE TO MORE CLOUD COVER ASSOCIATED WITH THE NEXT COLD FRONT THAT SHOULD MOVE THROUGH THE AREA THURSDAY AFTERNOON AND NIGHT.
EARLY AFTERNOON WATER VAPOR IMAGERY SHOWED THE UPPER LEVEL TROUGH CROSSING THE HIGH PLAINS. WITH ITS ASSOCIATED SURFACE COLD FRONT THROUGH THE NE PANHANDLE. DEPICTING A PROGRESSIVE LARGE SCALE FLOW ACROSS THE LOWER 48. UPPER TROUGH TRACKS EAST ACROSS THE GREAT PLAINS AND MIDWEST THROUGH THURSDAY. DRIER NORTHWESTERLY FLOW DOWNSTREAM OF INTERMOUNTAIN WEST UPPER RIDGE WILL BECOME THE DOMINANT FEATURE.
935 PM EST WED JAN 28 2015 HIGH PRESSURE WILL MOVE OFF TO THE SOUTHEAST OF THE REGION TONIGHT.
954 PM EST WED JAN 28 2015 LOW PRESSURE OVER THE NORTHERN PLAINS WILL MOVE ACROSS THE CENTRAL LAKES TOMORROW LIFTING A WARM FRONT ACROSS THE AREA. THE LOW WILL MOVE EAST OF THE LAKES TOMORROW NIGHT DRAGGING A COLD FRONT ACROSS THE AREA.
HELPING TO FLATTEN THE UPPER RIDGE THAT BROUGHT THE UNSEASONABLY WARM WEATHER TO THE AREA THE PAST COUPLE OF DAYS. DESPITE THE LOWER MID AND UPPER-LEVEL HEIGHTS ASSOCIATED WITH THE UPPER TROUGH. TEMPERATURES THIS AFTERNOON ONCE AGAIN SOARED INTO THE UPPER 60S TO THE LOWER 70S. IN ADDITION WINDS WERE BREEZY THIS AFTERNOON FROM A TIGHTENING PRESSURE GRADIENT ON THE SOUTH SIDE OF THE UPPER TROUGH. THE UPPER TROUGH WILL PUSH A COLD FRONT INTO THE AREA LATER TONIGHT. ATTENTION THEN TURNS TO AN UPPER-LEVEL TROUGH THAT WILL LIFT OUT OF THE EASTERN PACIFIC THURSDAY.
557 PM CST WED JAN 28 2015 COLD FRONT WILL MOVE THROUGH THE STATE OVERNIGHT.
DEWPOINTS ACRS SW LA AND SE TX ARE IN THE LOWER 50S WITH MIDDLE AND UPPER 40S ACRS ERN PORTIONS OF THE AREA. OVERNIGHT LOWS ARE EXPECTED TO RUN ABOUT 5-10 DEGREES WARMER THAN LAST NIGHT WITH LOWS IN THE LOWER TO MIDDLE 50S ACRS ALL BUT THE ERN-MOST ZONES WHERE TEMPERATURES WILL BE IN THE UPPER 40S/NR 50.
THOUGHT IT WAS PRUDENT TO EXPAND THE FREEZING RAIN ADVISORY. DONT THINK THE EXPANDED ADVISORY AREA WILL SEE AS WIDESPREAD OF A LIGHT ICE GLAZE BECAUSE OF SOME ABOVE FREEZING READINGS. DEWPOINTS ARE IN UPPER 20S OVER MUCH OF FORECAST AREA LEADING TO A WET-BULB BELOW FREEZING WITH PRECIPITATION.
CRYSTAL CLEAR SKIES ARE CURRENTLY PRESENT ACROSS ALL OF THE SOUTHEASTERN UNITED STATES THIS AFTERNOON WITH HIGH PRESSURE FIRMLY IN CONTROL.
616 PM CST Wed Jan 28 2015 Near-record warm temperatures will be swept out of the region tonight by a fairly strong cold front, which will pack a bit of a punch with sharply colder temperatures and northwest winds gusting between 25 and 35 mph after midnight.
EVENING SURFACE ANALYSIS DEPICTS HIGH PRESSURE (1025 MILLIBARS) SETTLING OVER GEORGIA. DEEP TROUGHING IS SLOWLY MOVING EASTWARD OFF THE SOUTHEASTERN SEABOARD. DEWPOINTS WERE GENERALLY RUNNING IN THE LOW TO MID 30S. A COLD FRONT WILL RAPIDLY APPROACH OUR REGION ON THURS NIGHT. HIGH PRESSURE WILL THEN BUILD TO THE NORTH OF OUR REGION ON FRI NIGHT AND SAT.
538 PM CST WED JAN 28 2015 LOW PRESSURE OVER EASTERN NEBRASKA WILL MOVE EAST AND PASS EAST OF THE CWA BY LATER TONIGHT. FEEL THE DRIZZLE THREAT WILL END BEFORE THE SUB- FREEZING TEMPS GET INTO THE CENTRAL COUNTIES AND DID NOT PLAY WITH ANY FREEZING PRECIP OTHER THAN THE NORTHEAST. THE CONCERN WITH THIS SYSTEM IS THE STRENGTH OF THE NORTHERN SYSTEM AND THE PHASING WITH LARGE UPPER LOW IN THE SOUTHWESTERN UNITED STATES. THIS PULLED MUCH MORE MOISTURE NORTHWARD ALONG AND INVERTED TROF AND PRODUCED A LARGE AMOUNT OF SNOWFALL ACROSS IOWA.
COLD FRONT TO PASS THROUGH THE REGION OVERNIGHT TURNING WINDS NORTHWESTERLY. INCLUDE THE HIGH FIRE DANGER THREAT THROUGH THE EARLY EVENING.
/ISSUED 251 PM CST WED JAN 28 2015/ STILL MILD AND SUNNY CONDITIONS TODAY AND THURSDAY AS CONTINENTAL HIGH PRESSURE MODERATES AND MOVES EAST. A FAST-MOVING SYSTEM MOVES THROUGH THE MIDDLE PLAINS STATES INTO THE OHIO VALLEY THURSDAY THAT USHERS CANADIAN HIGH PRESSURE SOUTHWARD.
540 PM CST Wed Jan 28 2015 A low pressure system currently centered over western Iowa will track eastward across northern Illinois from around midnight to 6 a. As it does so, a warm frontal boundary followed by a cold front will push across central Illinois in quick succession. The warm front will cause temperatures to remain steady or even rise slightly through much of the night, with primarily upper 30s and lower 40s expected, followed by little increase in temperatures after sunrise as the cold front pushes east across the area. Winds will gradually turn from SSE this afternoon to SSW overnight, shifting abruptly to northwest after the cold frontal passage.
UPPER TROUGH SWINGS ACROSS THE AREA LATE TONIGHT AND DURING THE DAY ON THURSDAY SO WE COULD SEE SCATTERED LIGHT SHOWERS AFTER 12Z THURSDAY CONTINUE THROUGHOUT THE DAY.
The 7 pm EST regional surface analysis showed a ridge from the Piedmont to the northeast Gulf of Mexico, with a relatively cool, dry airmass in place. Tonight promises to be much like last night, with lows in the lower to mid 30s and frost in our normally colder interior locations.
918 PM EST WED JAN 28 2015 HIGH PRESSURE WILL MOVE IN FROM THE WEST OVERNIGHT AND OFFSHORE ON THURSDAY.
752 PM EST WED JAN 28 2015 HIGH PRESSURE WILL MOVE OFF TO THE SOUTHEAST OF THE REGION TONIGHT.
340 PM MST WED JAN 28 2015 ANOTHER LOW PRESSURE SYSTEM APPROACHES THURSDAY FOR CLOUDY CONDITIONS THURSDAY AND A SLIGHT CHANCE OF SHOWERS OVER THE HIGHER TERRAIN.
HIGH PRESSURE WILL CONTINUE TO MOVE EAST AND BEGIN TO DEPART THE REGION. THIS COMBINED WITH WINDS DIMINISHING THROUGH THE EVENING WILL ALLOW TEMPERATURES TO FALL INTO THE LOW TO MID 30S ACROSS INTERIOR AL COUNTIES WITH UPPER 30S AND LOW 40S ACROSS SOUTHERN MS AND NORTHWEST FL. TEMPERATURES ON THURSDAY WILL BE A FEW DEGREES WARMER THAN TODAY WITH LOW 70S ACROSS MUCH OF THE AREA AND MID TO UPPER 60S ALONG THE IMMEDIATE COASTLINE. AMPLIFYING A PROGRESSIVE TROUGH OVER THE EASTERN THIRD OF THE COUNTRY.
THIS HIGH SLIDING TO THE EAST HAS RESULTED IN LIGHT/VARIABLE WINDS THIS MORNING. MID AFTERNOON HIGH TEMPERATURES HAVE RISEN INTO THE LOW/MID 50S. A NW FLOW CONTINUED FROM THE NE PLAINS TO THE SE COAST AS WEAK UPPER RIDGING MOVES ACROSS THE DEEP SOUTH. ALONG WITH A UPPER TROUGH NOW PROGRESSING EASTWARD ACROSS THE EASTERN PLAINS WILL BRING INCREASING CLOUDS AND A CHANCE OF RAIN TO THE AREA BEGINNING TOMORROW. A COLD FRONT SHOULD MOVE ACROSS THE AREA SUN EVENING. HIGHS DURING THE WEEKEND WILL REMAIN A TAD COOLER THAN NORMAL. WITH A COLD FRONT APPROACHING ON THURSDAY. THE TIMING OF THE LOWER OF THE CIGS COULD BE OFF +- AN HOUR OR TWO IN EITHER DIRECTION.
THE NEXT COLD FRONT IS CURRENTLY MOVING THROUGH THE CENTRAL PLAINS AND SHOULD CROSS THE RED RIVER TOWARD SUNRISE. TEMPERATURES ON THURSDAY WILL BE CONSIDERABLY COOLER THAN TODAY WITH HIGHS MAINLY IN THE 60S. TOMORROW MORNING/S COLD FRONT WAS LOCATED FROM THE OKLAHOMA PANHANDLE TO SOUTHEAST IOWA LATE THIS AFTERNOON. WINDS WILL REMAIN SOUTHERLY AT 9-13KTS TONIGHT BUT VEERING SOUTHWESTERLY AFTER 07Z AS A PRE-FRONTAL TROUGH ARRIVES. BRECKENRIDGE. A COLD FRONT ARRIVES TONIGHT BRINGING MUCH COOLER TEMPERATURES. COOLER TEMPERATURES WILL BE FELT BEHIND THE FRONT BUT TEMPERATURES WILL NOT CONTINUOUSLY FALL THROUGH THE DAY.
734 PM EST WED JAN 28 2015 HIGH PRESSURE WILL ENTER THE REGION TONIGHT AND THURSDAY.
626 PM CST WED JAN 28 2015 A COLD FRONT WILL BRING A WIND SHIFT TO ALL TERMINALS BY 10-12Z THURSDAY. AS A COLD FRONT MAKES ITS WAY SOUTHEAST ACROSS OKLAHOMA AND NORTH TEXAS.
THE LAST OF THE LOW CLOUDS ARE BURNING OFF IN THE UMPQUA BASIN AND SHOULD BE MAINLY CLEAR THIS EVENING.
THE CULPRIT FOR THE INCREASING WINDS IS THE COMBINATION OF THE LARGE RIDGE OVER THE EASTERN UNITED STATES.
928 PM CST WED JAN 28 2015 MIDEVENING GOES WATER VAPOR IMAGERY SHOWED CONSIDERABLE HIGH CLOUDINESS SPREADING EAST THROUGH THE LOWER/MIDDLE MS RIVER VALLEY IN ADVANCE OF AN UPPER LOW ALONG THE NE/KS BORDER. THIS SYSTEM WILL HELP TO ADVANCE A SURFACE COLD FRONT THROUGH THE REGION ON THURSDAY.
1039 PM EST WED JAN 28 2015 HIGH PRESSURE WILL MOVE OFF TO THE SOUTHEAST OF THE REGION TONIGHT.
350 AM CDT Tue Mar 17 2015 Significantly cooler temperatures are anticipated in the wake of a strong cold front which swept through the region early this morning; however, highs are still expected to reach or even slightly exceed their seasonal normals in the mid to possibly upper 50s. Cooler air filtering in under the upper trough and cloud cover/evaporative cooling associated with any rain showers will make Wednesday the coolest day in the forecast period, with highs remaining in the lower to mid 50s.
A DRY COLD FRONT WILL MOVE THROUGH LATE TUESDAY NIGHT. WITH COOLER CONDITIONS EXPECTED WEDNESDAY.
1141 PM MDT MON MAR 16 2015 NEAR RECORD WARMTH WILL CONTINUE LATE THIS AFTERNOON AND AGAIN TUESDAY AFTERNOON THANKS TO THE REGION BEING UNDER THE CONTROL OF A STRONG RIDGE OF HIGH PRESSURE ALOFT. THE CUT OFF LOW OVER BAJA CALIFORNIA WILL BEGIN TO MOVE NORTHEAST TUESDAY AND AN UPPER LEVEL TROUGH RACING EAST ACROSS THE PACIFIC WILL WEAKEN AS IT CROSSES THE GREAT BASIN AND UTAH TUES NIGHT. INCREASING MID AND UPPER LEVEL MOISTURE ASSOCIATED WITH THESE TWO SYSTEMS WILL CONVERGE OVER EASTERN UT AND WESTERN CO GIVING THE HIGHER TERRAIN AT LEAST A SLIGHT CHANCE FOR SHOWERS BY TUESDAY NIGHT.
AN UPPER LEVEL TROUGH NEARING THE COAST EARLY THIS MORNING WILL SWING THROUGH THE AREA TODAY. THE TROUGH AXIS WILL SHIFT EAST OF THE AREA THIS EVENING AND ANY SHOWERS WILL END OVERNIGHT.
250 AM CDT TUE MAR 17 2015 SURFACE MAP THIS MORNING HAS STRONG AREA OF HIGH PRESSURE BUILDING FROM THE NORTHERN PLAINS INTO THE UPPER MISSISSIPPI RIVER VALLEY REGION. HIGH PRESSURE WILL CONTINUE BUILDING IN FROM THE NORTHERN PLAINS WITH THE PRESSURE CENTER NEARING SW MN/NW IA BY LATE THIS AFTERNOON. THE HIGH WILL DRIFT OVERHEAD TONIGHT WITH WINDS DECOUPLING AND TEMPERATURE DROPPING INTO THE TEENS ACROSS CENTRAL WI. WILL ALSO SEE AN INCREASE IN HIGH/MID CLOUD AFTER MIDNIGHT IN RESPONSE TO WEAK LIFT OUT AHEAD OF A MID-LEVEL TROUGH MOVING INTO THE DAKOTAS. THERE WILL BE A CHANCE OF LIGHT RAIN WEST OF THE MISSISSIPPI RIVER WEDNESDAY AHEAD OF A WEAK MID-LEVEL TROUGH AND ASSOCIATED FRONTOGENESIS.
609 AM EDT TUE MAR 17 2015 COLD FRONT BRINGS LIGHT RAIN SHOWERS TODAY. FOLLOWED BY A COOLER WEDNESDAY.
An early morning surface analysis shows a pronounced cold front along a Detroit to Indianapolis to St Louis line, noted by southwest flow ahead and strong north/northeast flow in its wake. Meanwhile, the upper levels feature a ridge of high pressure over the Gulf of Mexico with a closed low off the west coast of Mexico. For today, St Patrick's Day, our luck with unseasonably warm temperatures and pleasant spring-like weather the past couple of days will run out as a strong cold front slides through the Ohio Valley. Canadian high pressure then builds into lower Great Lakes tonight and positions itself over Chicago by Wednesday morning. Look for lows in the lower 30s, with upper 20s possible in the typical colder, sheltered locations.
408 AM EDT TUE MAR 17 2015 A COLD FRONT WILL BRING SNOW OR RAIN SHOWERS TO THE NORTH COUNTRY TODAY.
SLIGHTLY COOLER TEMPERATURES WILL RETURN TOMORROW. EVEN COOLER WEDNESDAY.
419 AM EDT TUE MAR 17 2015 A COLD FRONT WILL BRING CLOUDS AND SPRINKLES THIS MORNING. COOLER CONDITIONS ARE EXPECTED FOR THE REST OF THE WEEK.
153 AM EDT TUE MAR 17 2015 A COLD FRONT WILL BRING THE CLOUDS AND SPRINKLES THROUGH THE MORNING. COOLER CONDITIONS ARE EXPECTED FOR THE REST OF THE WEEK.
326 AM EDT TUE MAR 17 2015 LOW PRESSURE WILL TRACK FROM MONTREAL TO NOVA SCOTIA TODAY AND DRAG A COLD FRONT ACROSS THE REGION. LOW PRESSURE LOOKS TO PASS JUST TO OUR SOUTH OVER THE WEEKEND. WE CONTINUE WITH A WESTERN RIDGE AND EASTERN TROUGH PATTERN. WE BEGIN THE PERIOD WITH HIGH PRESSURE.
440 AM EDT TUE MAR 17 2015 COLD FRONT BRINGS LIGHT RAIN SHOWERS TODAY. FOLLOWED BY A COOLER WEDNESDAY.
400 AM CDT TUE MAR 17 2015 EARLY MORNING SFC ANALYSIS SHOWS HIGH PRESSURE CENTERED OVER THE WRN GULF CONTINUING TO PREVAIL OVER THE FORECAST AREA. WATER VAPOR IMAGERY SHOWS THE AREA LYING UNDER RIDGING ALOFT. ONE MORE DRY DAY ON TAP TODAY WHILE THE RIDGING ALOFT BEGINS TO WEAKEN WITH THE APPROACH OF THE BAJA SYSTEM. POPS FURTHER INCREASE THROUGH WEDNESDAY AS THE LOW OPENS AND EJECTS ENEWD ACROSS THE REGION.
HIGH TEMPERATURES IN THE MID TO EVEN UPPER 80S ARE EXPECTED ACROSS INLAND AREAS WITH SLIGHTLY COOLER CONDITIONS FOR THE BEACHES.
COLD FRONT IS CURRENTLY PUSHING THROUGH THE TEXAS PANHANDLE EARLY THIS MORNING AND SHOULD BE ACROSS OUR NORTHERN ZONES BY 12Z THEN CLEARING THE SOUTH BY 15Z. TEMPERATURES TODAY WILL BE SHARPLY COOLER AS COMPARED TO WHAT WE SAW YESTERDAY. LOWS WILL BE A BIT COOLER AS WELL. DECAYING UPPER TROUGH WILL BE PUSHING ACROSS THE SOUTH PLAINS WEDNESDAY MORNING KEEPING ISOLATED SHOWER ACTIVITY IN PLACE INTO PERHAPS EARLY AFTERNOON BEFORE SUBSIDENCE TAKES HOLD LOCALLY THEREAFTER.
Have trended twd the warmer guidance across much of the CWA. Regardless, with the strength of this ridge, have trended cooler for tonight largely based on current temps behind the fnt.
A MORE CONGEALED CLOUD BASE SHOULD OCCUR IN THE HIGHER TERRAIN OF THE OUACHITAS AS POST-FRONTAL NE FLOW AND INCREASING MOISTURE WILL LIKELY BE ENOUGH TO GENERATE MVFR CIGS OF BKN025-030 AT KHOT.
THE LOW CLOUDS ARE EXPECTED TO DECREASE TOWARD MIDDAY ON TUE. WITH HIGHS BEING AROUND 30 DEGREES COOLER THAN TODAY. TEMPS OVR THE REST OF THE AREA WL BE COOLER AS WELL. IS RATHER DRY AND ONLY DELIVERS A QUICK SHOT OF PRECIP WED EVE BEFORE THE TROUGH SHIFTS TO THE SE OVER SW KS AND THE TX PANHANDLE. WILL STAY THE COURSE WITH CHANCE POPS OVER THE LOWER ELEVATIONS AND LIKELY POPS FOR THE HIGHER ELEVATIONS ALONG THE DVD AND ERN FRONT RANGE. MOST OF THE LOWLANDS WOULD SEE RAIN. AS HIGH PRESSURE BUILDS BEHIND THE DEPARTING TROUGH.
404 AM EDT TUE MAR 17 2015 A COLD FRONT WILL BRING SNOW OR RAIN SHOWERS TO THE NORTH COUNTRY TODAY.
BY TONIGHT A WAVE WILL HELP SWING WARMER AIR ALOFT INTO THE AREA AND THE COMBINATION OF THE UPPER LEVEL WAVE AND MID LEVEL FRONT COULD ALLOW FOR SOME LIGHT RAIN TO DEVELOP. HOWEVER A LOT OF DRY AIR EXISTS IN THE LOWEST FEW THOUSAND FEET OF THE ATMOSPHERE SO NOT TOO EXCITED ABOUT THE POTENTIAL.
WARM HIGH PRESSURE CENTERED OVER THE GULF COAST WILL YIELD TO A MAINLY DRY COLD FRONT THAT WILL CROSS OUR REGION THIS AFTERNOON AND EVENING. COLDER CANADIAN HIGH PRESSURE WILL FOLLOW FOR TONIGHT THROUGH WEDNESDAY NIGHT. MAYBE A BIT WARMER IN URBAN AREAS THOUGH. ) TO THE LOWER 50S ELSEWHERE (POSSIBLY EVEN MID 50S IN SOME URBAN AREAS). WEST-SOUTHWEST LOW-LEVEL FLOW WILL CONTINUE ON TUESDAY WITH LEE SIDE TROUGHING AT THE SURFACE AND NORTHWESTERLY FLOW ALOFT. 1000-850MB THICKNESSES SHOULD START OUT ABOVE 1380M IN THE MORNING AND 850MB TEMPS WILL APPROACH 15C BEFORE SLOWLY FALLING DURING THE AFTERNOON AS A COLD FRONT APPROACHES FROM THE NORTHWEST. MUCH COOLER AIR WILL RUSH IN BEHIND THE FRONT TUESDAY NIGHT AS ANOTHER COLD CANADIAN HIGH BUILDS ACROSS THE MIDWEST AND THICKNESSES TAKE A 70M DIVE TO AROUND 1300M OVERNIGHT.
301 AM EDT TUE MAR 17 2015 MAIN FEATURE OF INTEREST THIS MORNING CONTINUES TO BE A COLD FRONT DIVING SOUTHWARD INTO THE OHIO RIVER VALLEY. SOUTHWEST FLOW AHEAD OF THE FRONT IS HELPING TO CREATE A GOOD RIDGE/VALLEY SPLIT ACROSS THE AREA THIS MORNING WITH COOL 40 DEGREE READINGS IN THE VALLEYS WITH TEMPERATURES NEAR 60 IN THE BLUEGRASS AND SOME OF THE RIDGES. THIS WILL PUT HIGHS INTO THE LOWER 60S FOR MOST AREAS TODAY. ALLOWING VALLEY LOCATIONS TO FALL WELL INTO THE 20S WITH READINGS IN THE LOWER 30S ON THE RIDGES.
542 AM CDT Tue Mar 17 2015 Significantly cooler temperatures are anticipated in the wake of a strong cold front which swept through the region early this morning; however, highs are still expected to reach or even slightly exceed their seasonal normals in the mid to possibly upper 50s. Cooler air filtering in under the upper trough and cloud cover/evaporative cooling associated with any rain showers will make Wednesday the coolest day in the forecast period, with highs remaining in the lower to mid 50s.
1030 PM PDT MON MAR 16 2015 NEW AVIATION DISCUSSION AN UPPER LEVEL LOW PRESSURE SYSTEM WILL BRING COOLING TEMPERATURES AND INCREASING CLOUDS TO THE REGION THROUGH MID WEEK.
A COLD FRONT WILL CROSS NORTHERN UTAH LATE TODAY THROUGH TONIGHT. HIGH PRESSURE WILL FOLLOW FOR THE LATTER PORTION OF THE WEEK.
644 AM EDT TUE MAR 17 2015 A COLD FRONT WILL BRING CLOUDS AND SPRINKLES THIS MORNING. COOLER CONDITIONS ARE EXPECTED FOR THE REST OF THE WEEK.
419 AM MDT TUE MAR 17 2015 POST FRONTAL AIRMASS WITH MUCH COOLER TEMPERATURES AND STRATUS HAS NOW SPREAD OVER THE NE CO PLAINS AND INTO THE URBAN CORRIDOR AND FOOTHILLS. WHICH WOULD GENERALLY DOWNSLOPE OFF THE PALMER RIDGE. MOISTURE MOVING UP FROM THE SOUTH HAS SLOWED DOWN A BIT AND MAY NOT MAKE IT IN TIME FOR THE EXPECTED SCATTERED SHOWERS OVER THE HIGH MOUNTAINS THIS AFTERNOON. THE NORTHERN WAVE WILL PUSH A COLD FRONT ACROSS THE PLAINS DURING THE DAY. WE DO EXPECT SHOWERS TO DEVELOP IN THE HIGH COUNTRY THROUGH THE DAY WITH CONTINUED MOISTENING. WITH A FEW SPREADING ONTO THE PLAINS BY LATER IN THE AFTERNOON WITH LOW LEVEL SUPPORT BEHIND THE COLD FRONT.
222 AM EDT TUE MAR 17 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF CHILLY AIR TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
314 AM CDT TUE MAR 17 2015 A POTENT COLD FRONT PLOWED SOUTHWARD THROUGH THE STATE DURING THE EVENING AND OVERNIGHT HOURS. AFTER A RECORD WARM DAY TEMPERATURES HAVE DROPPED BACK DOWN WITH THE COLD FRONTAL PASSAGE INTO THE 40S AND 50S DURING THE OVERNIGHT HOURS. THE HIGHEST AMOUNTS ARE EXPECTED IN AREAS BORDERING OKLAHOMA AND MISSOURI.
POSSIBLY CLEARING AROUND MIDNIGHT OR SO AS HIGH PRESSURE DROPS IN FROM THE NORTH. AS THE HIGH EXITS TUE NIGHT ANOTHER LOW MOVES OFF THE ROCKIES INTO THE PLAINS.
1239 AM CDT TUE MAR 17 2015 HIGH PRESSURE CENTER WAS AT THE BORDER OF SASKATCHEWAN/MONTANA/NORTH DAKOTA. HIGH PRESSURE WILL BUILD SOUTHEAST FROM CANADA TONIGHT AND IS PROGGED TO BE OVER THE WESTERN DAKOTAS BY 12 UTC TUESDAY. HIGH PRESSURE WILL BUILD ACROSS THE STATE OVERNIGHT. A QUIET TUESDAY IS FORECAST WITH NOW WEAKENING HIGH PRESSURE IN PLACE ACROSS THE NORTHERN PLAINS. HIGHS ON TUESDAY WHILE BEING MUCH COOLER FROM THE RECENT WARM SPELL WILL STILL BE ABOVE AVERAGE IN THE LOWER TO MID 40S. THE WARMEST READINGS WITH HIGHS IN THE LOWER 40S WILL OCCUR OUTSIDE OF THE MAIN SNOW AREA LOCATED ACROSS THE FAR NORTH CENTRAL.
WARM AND BREEZY CONDITIONS FOR TODAY AS PRESSURE GRADIENT TIGHTENS WITH COLD FRONT TO THE NW APPROACHING. A DRY COLD FRONT WILL PUSH ACROSS THE AREA TONIGHT BETWEEN 06Z-12Z.