Aikyam-Lab/Synoptic-Bench huggingface dataset:
1200 AM MDT WED AUG 26 2015 HIGH PRESSURE CENTERED OVER EASTERN CO AND NEW MEXICO WILL FORCE WINDS ALOFT TO BECOME MORE SOUTHERLY. THE THICKENING CLOUDS AHEAD OF THE TROUGH WILL ALSO PRODUCE WARMER LOW TEMPS TONIGHT. GENERAL TROUGHINESS STAYS OVERHEAD THURSDAY ALLOWING MORE PRECIP ACROSS MUCH OF THE CWA BEFORE SHIFTING TO THE FRONT RANGE BY THURSDAY EVENING. HIGH PRESSURE THEN BUILDS IN OVERHEAD.
/ISSUED 803 PM CDT TUE AUG 25 2015/ THE 00Z SOUNDING CONTINUES TO INDICATE THE DEEP LAYER RIDGING AND A VERY DRY AND STABLE AIRMASS ARE DOMINATING THE AREA. THERE IS NO INSTABILITY NOTED IN THE LOW AND MID-LEVELS OF THE ATMOSPHERE WITH AN LCL THAT HIGH.
UPPER LEVEL HIGH PRESSURE WILL REMAIN CENTERED TO THE WEST OF THE REGION THE NEXT FEW DAYS. MODELS REMAIN CONSISTENT WITH SUPPRESSING THE UPPER RIDGE BEGINNING THURSDAY AS AN UPPER WAVE SLIDES INTO THE CENTRAL PLAINS.
706 PM CDT TUE AUG 25 2015 LOW PRESSURE THAT HAS BROUGHT CLOUDS TO MOST OF THE UPPER GRT LAKES THE PAST COUPLE OF DAYS. HIGH PRESSURE WAS BUILDING INTO THE AREA FROM THE WEST. THIS HIGH PRESSURE WILL DOMINATE OUR WEATHER IN THE SHORT TERM. WITH THE HIGH PRESSURE MOVING INTO THE AREA. WITH THE HIGH PRESSURE MOVING INTO THE AREA TONIGHT. THERE IS A POSSIBILITY THAT TEMPERATURES COULD DROP SLIGHTLY COOLER THAN LAST NIGHT. WITH THE HIGH PRESSURE AND CLEAR SKIES FORECAST FOR TONIGHT.
212 AM CDT WED AUG 26 2015 High pressure will remain across the area through Thursday night.
MUCH COOLER AND DRIER AIRMASS IN PLACE TODAY. TEMPERATURES JUST NOW REACHING THE LOW 80S ACROSS THE NORTH WITH MID TO UPPER 80S SOUTH.
746 PM EDT TUE AUG 25 2015 A WEAK COLD FRONT WILL STALL OVER THE AREA TONIGHT AND WEDNESDAY.
203 AM EDT WED AUG 26 2015 LINGERING CLOUDS ASSOCIATED WITH A DEEP LOW PRESSURE AREA WILL PERSIST THROUGH THE REST OF TONIGHT. LOWS TONIGHT WILL BE IN THE LOWER TO MIDDLE 50S. ALREADY BEGINNING TO SEE THE TROF AXIS SHIFTING AND NARROWING AS RIDGING STARTS BUILDING TO THE WEST. ANOMALOUSLY COLD SYSTEM FOR THIS PERIOD WITH SEVERAL SHORT WAVES AND WEAK SURFACE BOUNDARIES ACROSS THE WESTERN PORTION OF THE TROF. AS THE TROF BEGINS TO LIFT EAST. THIS WAVE WILL TRAVERSE THE RIDGE AND AMPLIFY IN THE LEE OF THE ROCKIES BY THURSDAY.
Will hold on to a slight (20%) PoP until 06z over the SE Big Bend as this area is still ahead of the cold front. A deep trough over the east coast will begin to break down and move off shore on Thursday. While highs will still be in the lower 90s, the apparent temperature will be much lower than we have seen over the last week. Lows will be in the 60s on Wednesday night, even dropping to the low 60s for southeast Alabama and the western Panhandle.
1052 PM EDT TUE AUG 25 2015 HIGH PRESSURE WILL MOVE EAST FROM THE PLAINS THROUGH THE WEEK. AM SLIGHTLY CONCERNED THAT MIN TEMPS MAY BE A TAD WARMER THAN EARLIER ANTICIPATED. HIGH PRESSURE FROM THE PLAINS WILL SLIDE EASTWARD THIS AFTERNOON INTO TONIGHT AND MOVE YESTERDAYS COLD FRONT WITH A COUPLE OF WAVES OF LOW PRESSURE ALONG IT EASTWARD TO THE ATLANTIC COAST. MOSTLY CLEAR CONDITIONS ANTICIPATED OVERNIGHT WITH LOW TEMPERATURES FROM THE LOWER 40S IN THE COLDER VALLEYS TO THE LOWER 60S IN THE PIEDMONT. LONGWAVE UPPER TROUGH ASSOCIATED WITH GREAT LAKES LOW PRESSURE CENTER WILL CONTINUE TO SLIDE EAST WEDNESDAY.
1048 PM CDT TUE AUG 25 2015 Quiet weather pattern persisting this afternoon as upper ridging continues to build across the Central and Northern Rockies. although a degree or two warmer as 850-hPa temps continue to moderate through the overnight period. Much of the same on Wednesday with high pressure once again providing a pleasant and seasonal day. Next weather feature of interest expected to start impacting the area early Thursday morning as a weak warm front slowly approaches from the west.
THERE MAY BE SOME RIVER VALLEY FOG LATE TONIGHT DUE TO THE COOL AIR OVER THE WARMER RIVER WATER.
500 MB PATTERN SHOWED A HIGH CENTERED OVER CO AND A RIDGE EXTENDING FROM THAT HIGH UP INTO CENTRAL CANADA. A TROUGH WAS LOCATED OFF THE COAST OF THE PACIFIC NW. A THERMAL RIDGE WAS OVER THE ROCKIES. THIS WILL CONTINUE TO LIFT NWD AND EVENTUALLY ROTATE AROUND THE MID TROPOSPHERIC RIDGE OVER THE ROCKIES. A RIDGE OF HIGH PRESSURE AT THE SURFACE WILL CONTINUE TO SLIDE SLOWLY EWD TONIGHT AND WEDNESDAY. BUT AGAIN THE HIGHEST INSTABILITY STAYS TO OUR WEST.
REST OF FORECAST LOOKS TO BE ON TRACK WITH DRY AND PLEASANT CONDITIONS AS HIGH PRESSURE RIDGE BUILDS IN FROM THE NORTH.
A TROUGH OF LOW PRESSURE WILL HANG AROUND THE NORTHERN GULF OF MEXICO THROUGH LATE IN THE WEEK.
346 AM EDT WED AUG 26 2015 A SLOW MOVING COLD FRONT WILL CROSS THE AREA TODAY AND MOVE EAST OF THE REGION TONIGHT. AN UPPER LEVEL TROUGH WILL MOVE OVER THE AREA THURSDAY.
530 PM MDT TUE AUG 25 2015 HIGH PRESSURE OVER THE INTERIOR WESTERN US WILL MAINTAIN WARM AND DRY CONDITIONS FOR NORTH CENTRAL AND SOUTHWEST MONTANA. THE UPPER RIDGE BEGINS TO FLATTEN ON THURSDAY AS ANOTHER WEAK WAVE EJECTS FROM THE PACIFIC NORTHWEST.
731 PM EDT TUE AUG 25 2015 HIGH PRESSURE WILL MOVE EAST FROM THE PLAINS THROUGH THE WEEK. HIGH PRESSURE FROM THE PLAINS WILL SLIDE EASTWARD THIS AFTERNOON INTO TONIGHT AND MOVE YESTERDAYS COLD FRONT WITH A COUPLE OF WAVES OF LOW PRESSURE ALONG IT EASTWARD TO THE ATLANTIC COAST. MOSTLY CLEAR CONDITIONS ANTICIPATED OVERNIGHT WITH LOW TEMPERATURES FROM THE LOWER 40S IN THE COLDER VALLEYS TO THE LOWER 60S IN THE PIEDMONT. LONGWAVE UPPER TROUGH ASSOCIATED WITH GREAT LAKES LOW PRESSURE CENTER WILL CONTINUE TO SLIDE EAST WEDNESDAY.
High pressure is in control of our weather regime and persistence (plus a degree or two) will be the rule.
1008 PM EDT TUE AUG 25 2015 A WEAK COLD FRONT WILL STALL OVER THE AREA TONIGHT AND WEDNESDAY.
A LARGE AMPLITUDE UPPER LEVEL TROUGH ACROSS THE EASTERN CONUS AND INTO THE CENTRAL GULF WITH DEEP TROPICAL MOISTURE ACROSS THE FLORIDA STRAITS AND INTO THE NORTHWEST BAHAMAS. THE SURFACE TO LOW LEVEL SOUTHERLY WINDS WILL ADVECT IN DEEPER TROPICAL MOISTURE INTO THE REGION TODAY WHILE THE UPPER LEVEL TROUGH CONTINUES TO DEEPEN INTO THE GULF WITH SOUTH FLORIDA EAST OF THE TROUGH AXIS. WITH THE AXIS OF THE UPPER LEVEL LOW STILL REMAINING IN THE NORTHERN TO CENTRAL GULF AND SOUTHERLY FLOW CONTINUING TO BRING TROPICAL MOISTURE INTO THE REGION. THURSDAY'S MID-LEVEL TEMPERATURES ARE FORECAST TO REMAIN COOLER THAN SEASONAL NORMS.
156 AM MDT WED AUG 26 2015 EARLY AFTERNOON WV IMAGERY AND RAP UPPER LEVEL ANALYSIS SHOWS RIDGE IN PLACE ACROSS CENTRAL ROCKIES. AT THE SURFACE LEE TROUGH IS IN PLACE ACROSS EASTERN COLORADO WITH MAIN AXIS EXTENDING ACROSS SE COLORADO INTO SW KANSAS. CONVECTIVE INITIATION WILL MAINLY BE ALONG TROUGH AXIS AND ALONG HIGHER TERRAIN IN COLORADO (WEST OF OUR CWA.
729 PM EDT TUE AUG 25 2015 COOLER CONDITIONS AND SPARSE SHOWER CHANCES CAN BE EXPECTED UNTIL HIGH PRESSURE BEGINS TO REBUILD FOR THE WEEKEND. COLDER MID-LEVEL AIR WILL CONTINUE TO FLOOD OVER THE CWA OVERNIGHT AS THE UPPER LOW CENTERED OVER NORTHERN ONTARIO MOVES TOWARD WESTERN QUEBEC TONIGHT. FRIES THE CLOSED UPPER LOW TO THE NORTH OF THE GREAT LAKES THROUGH IS FORECAST TO BEGIN FILLING ON THURSDAY. WITH IMPROVEMENT ANTICIPATED ON THURSDAY AS THE HIGH BEGINS TO BUILD.
FORECAST CHALLENGES ALSO INCLUDE THE IMPACT OF THE WEAK DISTURBANCE RIDING UP THROUGH THE RIDGE OF HIGH PRESSURE LATER THIS WEEK.
SREF PROBABILITIES ARE ON THE LOW SIDE FOR LOCATIONS MAINLY SOUTH AND WEST OF THE BIG AIRPORTS AND AWAY FROM THE COAST. THEN SPREADING INLAND SUN/MON WITH THE APPROACH/PASSAGE OF AN INVERTED TROF/TUTT LOW FROM THE GULF.
UPPER TROUGH AXIS WILL REMAIN WEST OF THE AREA PROVIDING A MOIST SW STEERING FLOW. EXPECT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS IN THE AFTERNOON/EVENING AS UPPER TROUGH DIGS SOUTH INTO THE GULF OF MEXICO.
SUBTROPICAL ANTICYCLONES WERE CENTERED OVER THE SOUTHERN HIGH PLAINS AND WESTERN NORTH ATLANTIC. WHILE A COLD-CORE CYCLONE WAS CENTERED OVER EASTERN CANADA WITH A TROUGH EXTENDING SOUTH TO THE NORTHEASTERN GULF OF MEXICO. A WEAK AREA OF HIGH PRESSURE WILL EXTEND OVER THE FLORIDA KEYS AND ADJACENT COASTAL WATERS OVERNIGHT THROUGH THURSDAY.
932 PM EDT TUE AUG 25 2015 A COLD FRONT WILL REMAIN STALLED OVER NORTHEAST NORTH CAROLINA TONIGHT. HIGH PRESSURE NUDGES INTO THE REGION WEDNESDAY. PUSHING THE COLD FRONT OFFSHORE WEDNESDAY NIGHT INTO THURSDAY. WEAK HIGH PRESSURE WILL BUILD NORTH OF THE AREA FOR THE LATTER HALF OF THE WEEK. LOW TEMPS WILL RANGE FROM THE LOW 60S OVER THE PIEDMONT TO THE LOW 70S ALONG THE COAST. RESIDUAL TROUGH ALOFT WILL LINGER GENERALLY FM THE OH VLY TO THE GULF CST STATES THROUGH THE EXTENDED FCST PD. SFC COLD FRONT CONTS TO SLOWLY MOVE TOWARDS THE SE VA COAST. THE COLD FRONT STALLS ALONG THE COAST THROUGH WEDNESDAY MORNING AND THEN MOVES SE AWAY FROM THE FORECAST AREA WEDNESDAY AFTN. HIGH PRESSURE BUILDS IN FROM THE NORTH WEDNESDAY NIGHT AND THURSDAY.
808 PM EDT TUE AUG 25 2015 MARINE A LARGE SLOW MOVING LOW PRESSURE SYSTEM OVER THE LAKE SUPERIOR REGION WILL CONTINUE TO PRODUCE FALL LIKE WEATHER THROUGH WEDNESDAY WITH EXTENSIVE CLOUD COVER AND VERY COOL TEMPERATURES.
A WEAK COLD FRONT EXTENDED ACROSS THE FAR NE SECTION OF THE HGX CWA FROM ABOUT MIDWAY TO COLDSPRING TO ROMAYOR. DEW PTS ARE IN THE MID/UPPER 60S BEHIND THE BOUNDARY AND IN THE LOW/MID 70S AHEAD OF IT. 850 MB HIGH PRESSURE WAS LOCATED OVER NORTH TEXAS WITH A RIBBON OF DEEPER MSTR FROM FWD TO SHV. THE HIGH WAS LOCATED OVER THE TEXAS PANHANDLE WITH SLIGHTLY DEEPER MSTR NEAR LCH. HIGH PRESSURE AT 250 MB WAS LOCATED OVER SOUTH CENTRAL NEW MEXICO WITH A WEAK 250 TROF AXIS OVER EAST TEXAS EXTENDING SW TOWARD LAREDO.
737 PM EDT TUE AUG 25 2015 A LARGE AND VERY SLOW MOVING UPPER LEVEL TROUGH OF LOW PRESSURE OVER EASTERN CANADA WILL IMPACT THE NORTH COUNTRY RIGHT THROUGH THE END OF THE WEEK.
CURRENT MIN TEMPS IN THE LOWER TO MID 70S LOOKS ON TRACK.
1135 PM EDT TUE AUG 25 2015 AN UNSEASONABLY STRONG UPPER TROUGH WILL DOMINATE THE WEATHER PATTERN OVER PENNSYLVANIA THROUGH THURSDAY.
148 AM EDT WED AUG 26 2015 HIGH PRESSURE WILL MOVE EAST FROM THE PLAINS THROUGH THE WEEK. AM SLIGHTLY CONCERNED THAT MIN TEMPS MAY BE A TAD WARMER THAN EARLIER ANTICIPATED. HIGH PRESSURE FROM THE PLAINS WILL SLIDE EASTWARD THIS AFTERNOON INTO TONIGHT AND MOVE YESTERDAYS COLD FRONT WITH A COUPLE OF WAVES OF LOW PRESSURE ALONG IT EASTWARD TO THE ATLANTIC COAST. MOSTLY CLEAR CONDITIONS ANTICIPATED OVERNIGHT WITH LOW TEMPERATURES FROM THE LOWER 40S IN THE COLDER VALLEYS TO THE LOWER 60S IN THE PIEDMONT. LONGWAVE UPPER TROUGH ASSOCIATED WITH GREAT LAKES LOW PRESSURE CENTER WILL CONTINUE TO SLIDE EAST WEDNESDAY.
832 PM EDT TUE AUG 25 2015 COOLER CONDITIONS AND SPARSE SHOWER CHANCES CAN BE EXPECTED UNTIL HIGH PRESSURE BEGINS TO REBUILD FOR THE WEEKEND. COLDER MID-LEVEL AIR WILL CONTINUE TO FLOOD OVER THE CWA OVERNIGHT AS THE UPPER LOW CENTERED OVER NORTHERN ONTARIO MOVES TOWARD WESTERN QUEBEC TONIGHT. FRIES THE CLOSED UPPER LOW TO THE NORTH OF THE GREAT LAKES THROUGH IS FORECAST TO BEGIN FILLING ON THURSDAY. WITH IMPROVEMENT ANTICIPATED ON THURSDAY AS THE HIGH BEGINS TO BUILD.
924 PM EDT TUE AUG 25 2015 HIGH PRESSURE OVER THE CENTRAL UNITED STATES WILL SLOWLY MOVE EAST OVER THE NEXT SEVERAL DAYS.
A WEAK COLD FRONT EXTENDED ACROSS THE FAR NE SECTION OF THE HGX CWA FROM ABOUT MIDWAY TO COLDSPRING TO ROMAYOR. DEW PTS ARE IN THE MID/UPPER 60S BEHIND THE BOUNDARY AND IN THE LOW/MID 70S AHEAD OF IT. 850 MB HIGH PRESSURE WAS LOCATED OVER NORTH TEXAS WITH A RIBBON OF DEEPER MSTR FROM FWD TO SHV. THE HIGH WAS LOCATED OVER THE TEXAS PANHANDLE WITH SLIGHTLY DEEPER MSTR NEAR LCH. HIGH PRESSURE AT 250 MB WAS LOCATED OVER SOUTH CENTRAL NEW MEXICO WITH A WEAK 250 TROF AXIS OVER EAST TEXAS EXTENDING SW TOWARD LAREDO. SREF PROBABILITIES ARE ON THE LOW SIDE FOR LOCATIONS MAINLY SOUTH AND WEST OF THE BIG AIRPORTS AND AWAY FROM THE COAST.
845 PM EDT TUE AUG 25 2015 A COLD FRONT WILL REMAIN STALLED OVER NORTHEAST NORTH CAROLINA TONIGHT. HIGH PRESSURE NUDGES INTO THE REGION WEDNESDAY. PUSHING THE COLD FRONT OFFSHORE WEDNESDAY NIGHT INTO THURSDAY. WEAK HIGH PRESSURE WILL BUILD NORTH OF THE AREA FOR THE LATTER HALF OF THE WEEK. RESIDUAL TROUGH ALOFT WILL LINGER GENERALLY FM THE OH VLY TO THE GULF CST STATES THROUGH THE EXTENDED FCST PD. SFC COLD FRONT CONTS TO SLOWLY MOVE TOWARDS THE SE VA COAST. THE COLD FRONT STALLS ALONG THE COAST THROUGH WEDNESDAY MORNING AND THEN MOVES SE AWAY FROM THE FORECAST AREA WEDNESDAY AFTN. HIGH PRESSURE BUILDS IN FROM THE NORTH WEDNESDAY NIGHT AND THURSDAY.
THE MID/UPPER RIDGE OVER THE SOUTHERN ROCKIES IS PROGGED TO EXPAND EASTWARD TOWARD THE AREA THROUGH EARLY THU WITH RISING HEIGHTS/INCREASING THICKNESS SUPPORTING RISING TEMPERATURES ACROSS THE AREA.
803 PM CDT TUE AUG 25 2015 THE 00Z SOUNDING CONTINUES TO INDICATE THE DEEP LAYER RIDGING AND A VERY DRY AND STABLE AIRMASS ARE DOMINATING THE AREA. THERE IS NO INSTABILITY NOTED IN THE LOW AND MID-LEVELS OF THE ATMOSPHERE WITH AN LCL THAT HIGH.
1136 PM CDT TUE AUG 25 2015 LOW PRESSURE THAT HAS BROUGHT CLOUDS TO MOST OF THE UPPER GRT LAKES THE PAST COUPLE OF DAYS. HIGH PRESSURE WAS BUILDING INTO THE AREA FROM THE WEST. THIS HIGH PRESSURE WILL DOMINATE OUR WEATHER IN THE SHORT TERM. WITH THE HIGH PRESSURE MOVING INTO THE AREA. WITH THE HIGH PRESSURE MOVING INTO THE AREA TONIGHT. THERE IS A POSSIBILITY THAT TEMPERATURES COULD DROP SLIGHTLY COOLER THAN LAST NIGHT. WITH THE HIGH PRESSURE AND CLEAR SKIES FORECAST FOR TONIGHT.
627 PM CDT TUE AUG 25 2015 HIGH PRESSURE WILL CONTINUE OVER ARKANSAS.
The next significant round of wind, showers, and cooler weather looks to arrive for the upcoming weekend. This wave will accelerate northward overnight as it squeezes between the high over the southwest and deep low off the coast and should reach WA after midnight.
214 AM EDT WED AUG 26 2015 A WEAK COLD FRONT SLOWLY CROSSES THE EASTERN PORTIONS OF THE TRI- STATE OVERNIGHT. HIGH PRESSURE THEN BUILDS IN FROM THE WEST THROUGH THURSDAY NIGHT.
825 PM EDT TUE AUG 25 2015 A LARGE AND VERY SLOW MOVING UPPER LEVEL TROUGH OF LOW PRESSURE OVER EASTERN CANADA WILL IMPACT THE NORTH COUNTRY RIGHT THROUGH THE END OF THE WEEK.
142 AM EDT WED AUG 26 2015 AVIATION A LARGE SLOW MOVING LOW PRESSURE SYSTEM OVER THE LAKE SUPERIOR REGION WILL CONTINUE TO PRODUCE FALL LIKE WEATHER THROUGH WEDNESDAY WITH EXTENSIVE CLOUD COVER AND VERY COOL TEMPERATURES.
HIGH THE 250 MB UPPER LOW WILL BECOME CENTERED JUST EAST OF JAMES BAY CANADA BY EVENING AS AN UPPER RIDGE BUILDS FROM THE CENTRAL ROCKIES TOWARD THE NEBRASKA AND SOUTH DAKOTA AREA WITH A NORTHWEST FLOW ACROSS SOUTHERN WISCONSIN. A LAKE BREEZE IS EXPECTED DURING THE AFTERNOON AS THE RIDGE AXIS APPROACHES LAKE MICHIGAN.
759 PM EDT TUE AUG 25 2015 A TROUGH OF LOW PRESSURE IN THE UPPER ATMOSPHERE WILL PROVIDE COOL TEMPERATURES AND PARTLY TO MOSTLY CLOUDY SKIES THROUGH WEDNESDAY.
1246 AM EDT WED AUG 26 2015 A COLD FRONT WILL SLOWLY APPROACH LATE TONIGHT.
For Wednesday and Thursday, the consensus here is for the upper ridge to strengthen overhead.
A cold front will push into the area around 09z for CNM and HOB and afterward for the other terminals bringing elevated and gusty northwest to north winds to the area.
651 PM EST FRI JAN 15 2016 AVIATION ONE AREA OF LOW PRESSURE CROSSING LAKE MICHIGAN THIS EVENING WILL TRACK THROUGH LOWER MICHIGAN TONIGHT.
THIS PRECIP IS JUST AHEAD OF A COLD FRONT. SURGE OF COLD AIR EXPECTED TO DROP TEMPS INTO THE UPPER 20S NORTHERN PLATEAU AND INTO THE LOWER 30S MOST OTHER LOCATIONS. COLD FRONT POISED TO MOVE THROUGH THE AREA THIS EVENING. A SLIGHT CHANCE OF SNOW FLURRIES WILL PERSIST AS A MID LEVEL UPPER TROUGH IS STILL LOCATED UPSTREAM.
631 PM EST FRI JAN 15 2016 A COLD FRONT IS CURRENTLY PUSHING THROUGH THE AREA AND TEMPERATURES WILL FALL INTO THE UPPER 20S TO LOWER 30S FOR LATE TONIGHT AND TOMORROW.
911 PM EST FRI JAN 15 2016 LOW PRESSURE OVER THE CAROLINAS WILL TRACK NORTHEAST AND OUT TO SEA OVERNIGHT. WITH CANADIAN HIGH PRESSURE BUILDING IN THE WAKE. RESULTING IN TEMPS DROPPING BELOW FREEZING EVERYWHERE.
BUT THEY MAY TEMPORARILY WARM AS A COLD FRONT MOVES THROUGH THE AREA LATE THIS EVENING INTO THE OVERNIGHT. THOSE CLOUDS SLOWLY ERODED FROM WEST TO EAST AHEAD OF AN APPROACHING COLD FRONT.
WEAK RIDGING AT THE SFC AND ALOFT EXPECTED TO PREVAIL TONIGHT. UPSTREAM UPPER TROF EVIDENT IN WATER VAPOR SATELLITE IMAGERY NEAR THE FOUR CORNERS EXPECTED TO CONTINUE TRANSLATING EWD TONIGHT. THE LOW IS FCST TO SUBSEQUENTLY DEEPEN AND TRACK TWD THE ENE OVER THE NORTHERN GULF SAT AFTERNOON AND NIGHT. WHILE POPS TAPER OFF INLAND INTO THE LOW/MID RANGE CHANCE CATEGORY. THE EXPECTED CLOUDS/RAIN ARE FCST TO HOLD TEMPERATURES DOWN GENERALLY IN THE LOWER 60S.
A COLD FRONT WILL SWEEP ACROSS CENTRAL INDIANA TONIGHT. PUSHING COOLER.
ECMWF HAS CONTINUED TO COME IN LINE WITH THE STRONGER GFS (AND IS NOW ACTUALLY A FEW MB LOWER) IN TERMS OF SURFACE RESPONSE TO THE AMPLIFIED SHORT WAVE TROUGH TRAILING TODAY'S LEAD SYSTEM. THE PARENT H50 TROUGH WILL TRACK RAPIDLY EWD FROM SOUTH TX ACROSS THE NRN GOMEX SAT-SAT NIGHT. WHICH WILL BE MUCH COOLER (MAINLY 40S WITH MID 50S MARTIN COAST).
846 PM CST FRI JAN 15 2016 THE MID LEVEL TROUGH DISCUSSED EARLIER HAS EXITED THE SOUTHEAST. THAT CAA COULD STILL PRODUCE SOME FLURRIES OUT OF THE LOW CLOUD DECK.
IT WILL LIKELY BE IN THE HIGHER ELEVATIONS OF THE ARKLATEX WHERE TRUE WET-BULBING WILL BE NOTED AT THE SURFACE.
MODELS ARE SIMILAR IN DEVELOPING PRECIPITATION LATE TONIGHT ALONG AND NEAR THE 7H TROUGH AXIS WITH HEAVIER AMOUNTS OVER SOUTHWEST AND SOUTH CENTRAL OKLAHOMA BETWEEN 9-18Z SATURDAY. SURFACE TEMPERATURES SHOULD STAY NEAR OR JUST ABOVE FREEZING.
LATEST OBSERVATIONS AND SATELLITE IMAGERY INDICATE THAT THE COLD FRONT IS STARTING TO MOVE THROUGH NW ALABAMA AS OF 930PM. COLD FRONT CONTINUES TO MAKE SEWD PROGRESS EARLY THIS EVENING AND IS ON SCHEDULE TO REACH MSL/01-02Z AND HSV/03-04Z.
THOSE CLOUDS SLOWLY ERODED FROM WEST TO EAST AHEAD OF AN APPROACHING COLD FRONT.
ARCTIC HIGH PRESSURE WILL CONTINUE ITS SLOW DESCENT SOUTH INTO THE NORTHERN PLAINS TONIGHT AND SATURDAY.
VERY WEAK HIGH PRES WILL BUILD OVER THE AREA TONIGHT IN THE WAKE OF THE LOW PRESSURE SYSTEM THAT MOVED OVER SRN GA TODAY. AS THE LOW MOVES FURTHER NEWD. THE AIRMASS IS NOT ESPECIALLY COOL BEHIND THE LOW AND SO MINS TONIGHT ARE FCST TO DROP ONLY TO THE UPPER 40S N TO MID 50S ACROSS THE SRN TIER OF ZONES.
AIDED BY AN UPPER TROUGH AXIS LIFTING INTO THE GREAT LAKES STATES. THERE'S BEEN A LITTLE BIT OF A NWD SHIFT IN THE MODEL BIASES WITH REGARD TO THE NEXT UPPER TROUGH AXIS AND ASSOCIATED SFC WAVE MAKING ITS WAY EWD OUT OF THE WRN GULF LATE SAT AFTERNOON/EVENING. AS A STRONG DOME OF HIGH PRESSURE BUILDS SEWD ACROSS THE NRN/MID PLAINS. ALTHOUGH THERE ARE NOTICEABLE DISCREPANCIES BETWEEN THE GLOBAL MODELS WITH RESPECT TO AIR MASS RECOVERY AND AMPLIFICATION OF THE UPPER TROUGH FEATURES. COLD FRONT CONTINUES TO MAKE SEWD PROGRESS EARLY THIS EVENING AND IS ON SCHEDULE TO REACH MSL/01-02Z AND HSV/03-04Z.
828 PM MST FRI JAN 15 2016 A 130 KNOT JET OVER THE INTERMOUNTAIN WEST WILL DRIVE A SHORT WAVE TROUGH SOUTH ACROSS WYOMING AND COLORADO TONIGHT.
553 PM CST FRI JAN 15 2016 20z/2pm surface analysis shows cold front pushing east of the I-57 corridor, as the area of rain ahead of the boundary exits into Indiana. While temperatures are still in the lower to middle 40s across the E/SE KILX CWA, readings have dropped into the lower to middle 30s further west across the remainder of the area. Large high pressure ridge will move into the area and affect the CWA beginning tomorrow.
Cooler conditions are occurring across the area this afternoon, behind a cold front that passed through the region last night.
/ISSUED 331 PM CST FRI JAN 15 2016/ AN UPPER TROUGH WILL MOVE FAIRLY QUICKLY ACROSS THE PANHANDLES TONIGHT AND SATURDAY MORNING. AS THE UPPER TROUGH PROGRESSIVELY MOVES OFF TO THE EAST BY 18Z SATURDAY.
Some areas of the Columbia Basin will see a wintry mix of rain, snow, and freezing rain.
IN THIS SUPER FAST PROGRESSIVE FLOW LAST NIGHTS SYSTEM IS ALREADY PUSHING INTO EASTERN ARIZONA AS THE OBLIGATORY RIDGING IS STRENGTHENING ALONG 130W.
WEAK COLD FRONT TO OUR W WILL PUSH E OF THE MID STATE BY THE LATE EVENING HRS. WITH YET AGAIN ANOTHER REINFORCING SHOT OF A COLD CANADIAN SFC BASED HIGH PRESSURE AIR MASS INFLUENCING THE MID STATE.
NEXT SYSTEM ON TRACK TO REACH THE OREGON COAST SATURDAY MORNING WITH THE WARM FRONT/PRECIPITATION MOVING ACROSS THE AREA ON SATURDAY. PRECIPITATION WITH THE WARM FRONT. TREASURE VALLEY IS CURRENTLY NEAR FREEZING AND SHOULD REMAIN SO UNTIL THE SOUTHEAST WINDS INCREASE SATURDAY MORNING.
621 PM EST FRI JAN 15 2016 LOW PRESSURE MOVING THROUGH THE CENTRAL GREAT LAKES WILL PULL A COLD FRONT EAST ACROSS THE AREA TONIGHT. A TROUGH WILL LINGER OVER THE EASTERN GREAT LAKES AT THE SURFACE THIS WEEKEND WHILE A RIDGE BUILDS OVER THE OHIO VALLEY ON SATURDAY.
641 PM EST FRI JAN 15 2016 A LOW PRESSURE SYSTEM WILL BRING SOME RAIN OVERNIGHT INTO SATURDAY MORNING. REMAINDER OF THE AFTERNOON STAYS QUIET AND MILD WITH SOUTHERLY FLOW AND HIGH CLOUDS STREAMING NORTH AHEAD OF LOW PRESSURE SYSTEM. CLOUDS THICKEN UP LATER THIS EVENING AS DUAL LOW PRESSURE SYSTEMS APPROACH SUPPORTED BY UPPER LEVEL WAVE. ESPECIALLY IN THE HIGHEST ELEVATION AREAS ABOVE 1500-1800 FEET FROM NORTHERN SULLIVAN THROUGH DELAWARE COUNTIES. HOWEVER RIGHT NOW, LOOKS LIKE MAINLY JUST A RAIN/SNOW CONCERN AS DESCRIBED ABOVE WITH LESS OF A THREAT OF FREEZING RAIN. IN TERMS OF SNOW ACCUMULATION, A COATING UP TO LOCALLY 2-3 INCHES WILL BE POSSIBLE IN THE AFOREMENTIONED AREAS THROUGH THE HIGHER TERRAIN OF THE CATSKILLS BUT OTHERWISE NOT EXPECTING MUCH.
528 PM CST FRI JAN 15 2016 /00Z TAFS/ A cold front is situated over western north TX this evening but is expected to remain north of I-20 for the most part overnight. As this low moves east, westerly winds will increase around 12z, becoming northwesterly at around 15 kts during the morning hours as a cold front swings through the CWA. /issued 348 PM CST FRI JAN 15 2016/ (Tonight and Saturday) Upper low over the 4-corners region will move east along the the Red River Saturday. Gusty north winds otherwise expected Saturday as a cold front moves along the I-20 corridor around 6 AM and south of I-10 by Noon. Cooler Saturday with skies clearing in the mid/late afternoon.
/ISSUED 245 PM CST FRI JAN 15 2016/ Colder air will continue to filter into the region tonight behind the cold front that pushed through the area earlier this morning.
THOUGH THE HIGHEST ELEVATIONS COULD SEE A MIX OF RAIN AND SNOW/FLURRIES. THE WARM SOUTHERLY WINDS COMBINED WITH THE CLOUD COVER SHOULD KEEP TEMPERATURES ABOVE FREEZING OVERNIGHT ACROSS MOST VALLEY LOCATIONS. THE HIGHER TERRAIN OF SW VIRGINIA AND THE APPALACHIANS COULD SEE SUB-FREEZING TEMPERATURES. CHATTANOOGA AIRPORT, TN 40 47 32 46 / 40 0 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 36 42 31 41 / 50 10 40 20 OAK RIDGE, TN 34 43 30 42 / 60 10 30 20 TRI CITIES AIRPORT, TN 35 42 30 40 / 40 10 50 40.
CANADIAN COLD FRONT IS SAGGING THROUGH NORTHEAST MT WHERE TEMPS HAVE BEEN STEADILY FALLING TODAY.
455 PM MST FRI JAN 15 2016 A RELATIVELY WEAK COLD FRONT AND UPPER TROUGH WILL CONTINUE MOVING ESE THIS EVENING. WITH THE TROUGH CLEARING THE AREA TO THE EAST BY 03Z. WITH FRESH SNOW IN THE LOWER VALLEYS. FOG IS A POSSIBILITY OVERNIGHT IN THE LOWER ELEVATIONS OF THE COLORADO RIVER VALLEY.
631 PM EST FRI JAN 15 2016 THE SYNOPSIS SECTION HAS BEEN UPDATED BELOW A COLD FRONT WILL SWEEP ACROSS CENTRAL INDIANA TONIGHT. PUSHING COOLER.
525 PM CST FRI JAN 15 2016 A STRONG CLOSED LOW SPINNING ACROSS CENTRAL CANADA WILL SLOWLY SPIN SOUTHWARD INTO THE GREAT LAKES REGION THROUGH THE WEEKEND.
551 PM CST FRI JAN 15 2016 SATELLITE AND OBSERVATIONS INDICATE THE LOW CLOUDS FROM THIS MORNING ARE BREAKING UP WITH MORE SUNSHINE THIS AFTERNOON. SURFACE ANALYSIS HAS A WEAK HIGH PRESSURE SYSTEM ACROSS THE AREA AND WINDS HAVE BEEN SLOWLY DECREASING A LITTLE THIS AFTERNOON. AN ARCTIC COLD FRONTAL BOUNDARY WILL SURGE SOUTH AS AN UPPER LOW PRESSURE SYSTEM TRANSLATES SOUTHEAST FROM MANITOBA TO THE UPPER GREAT LAKES REGION.