Aikyam-Lab/Synoptic-Bench huggingface dataset:
1112 AM MDT SUN MAR 27 2016 UPPER RIDGE TRANSLATES OVER THE REGION TODAY RESULTING IN A DRY DAY ACROSS SOUTHERN COLORADO. SNOW COVER ALONG THE I-25 CORRIDOR MAY HOLD TEMPERATURES DOWN IN THE 40S FOR THE PALMER AND RATON RIDGES. SHOULD STILL SEE HIGHS IN THE LOWER 40S. FLOW ALOFT TRANSITIONS TO SOUTHWESTERLY AHEAD OF THE NEXT UPPER LOW MOVING INTO THE WESTERN U. LEE TROFFING AND WESTERLY DRAINAGE WINDS SHOULD HELP KEEP TEMPERATURES WARMER THAN THOSE OF THIS MORNING FOR MOST AREAS.
AND FROM THE LOWER MISSISSIPPI VALLEY TO THE TENNESSEE VALLEY AND NORTHERN MID ATLANTIC REGION WILL ALSO MOVE EAST TONIGHT. THE COLD FRONT IS EXPECTED MOVE THROUGH THE FORECAST AREA MOSTLY BETWEEN LATE EVENING IN THE WEST/NORTHWEST TO AROUND SUNRISE ON MONDAY MORNING IN COASTAL AREAS.
605 PM EDT SUN MAR 27 2016 A STRENGTHENING AREA OF LOW PRESSURE OVER SOUTHERN LOWER MICHIGAN WILL MOVE NORTHEAST OVERNIGHT AND DRAG A COLD FRONT ACROSS THE REGION. THE LOW WILL CONTINUE NORTHEAST ON MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA FROM THE WEST.
306 PM MDT SUN MAR 27 2016 UPPER LOW DROPS INTO THE GREAT BASIN OVERNIGHT INTO MONDAY AS UPPER RIDGE AXIS SLIDES EASTWARD INTO THE CENTRAL PLAINS. OVERNIGHT LOWS WILL DROP BELOW FREEZING AT MOST LOCATIONS AS WINDS DECOUPLE FOR A TIME EARLY IN THE NIGHT. BREEZY AND MUCH WARMER CONDITIONS DEVELOP. AND WILL KEEP SOME LOW POPS IN PLACE FOR THE HIGHER MOUNTAIN ZONES AFTER 19Z-20Z.
TONIGHT WILL SEE WEAK UPPER RIDGING GIVING WAY TO AN APPROACHING PACIFIC LOW PRESSURE SYSTEM. THE PRIMARY PERIOD OF INTEREST GETS UNDERWAY MONDAY AND MONDAY NIGHT AS A BROAD UPPER TROUGH AND CLOSED LOW FROM THE WEST BEGINS TO IMPACT THE REGION.
725 AM EDT SUN MAY 17 2015 A DISSIPATING FRONTAL BOUNDARY OR TROUGH WILL MOVE ACROSS THE AREA THIS MORNING BEFORE WASHING OUT. A BACKDOOR COLD FRONT WILL THEN DROP SOUTHWEST ACROSS NEW ENGLAND TONIGHT AND ACROSS THE AREA BY DAYBREAK MONDAY. THE FRONT STALLS JUST SOUTHWEST OF THE REGION ON MONDAY WITH HIGH PRESSURE BUILDING IN FROM THE NORTHEAST.
1000 AM EDT SUN MAY 17 2015 DEEP RIDGE AXIS CENTERED OFF THE CAROLINA COAST CONTINUES TO DOMINATE THE LCL WX PATTERN. RAP40 ANALYSIS A BAND OF H100-H70 MOISTURE BTWN ANDROS ISLAND AND APALACHICOLA EMBEDDED WITHIN THE DEEP ERLY FLOW GENERATED BY THE RIDGE. AN H85-H50 ANTICYCLONE BLANKETING THE FL PENINSULA HAS ALL BUT COLLAPSED THE MID LVL STEERING FLOW. HI PRES RIDGE AXIS CENTERED OFF THE CAROLINA COAST WILL MAINTAIN A GENTLE TO MODERATE E/SE BREEZE TODAY.
901 AM MST SUN MAY 17 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY. ANOTHER PACIFIC LOW PRESSURE SYSTEM IS FORECAST TO MOVE INTO THE REGION MONDAY.
OTHER THAN SOME SHRA EAST OF THE LOWER ATCHAFALAYA BASIN. AS THE UPPER LEVEL TROUGH CONTINUES TO KICK OFF TO THE NORTHEAST ON MONDAY.
744 AM EDT SUN MAY 17 2015 HIGH PRESSURE OFFSHORE WILL BRING AN INCREASE IN WARMTH AND HUMIDITY.
1015 AM EDT SUN MAY 17 2015 HIGH PRESSURE OFFSHORE WILL BRING AN INCREASE IN WARMTH AND HUMIDITY.
UPPER RIDGE CENTERED OVER FORECAST AREA THIS MORNING. HIGH PRESSURE RIDGE SHIFTS OVER THE WATERS MONDAY. LESSER RISK ANTICIPATED MONDAY WITH HIGH PRESSURE OVER THE AREA RESULTING IN SOME DECREASE IN WINDS AND SWELL.
1008 AM EDT SUN MAY 17 2015 A DISSIPATING FRONTAL BOUNDARY OR TROUGH WILL MOVE ACROSS THE AREA THIS MORNING BEFORE WASHING OUT. A BACKDOOR COLD FRONT WILL THEN DROP SOUTHWEST ACROSS NEW ENGLAND TONIGHT AND ACROSS THE AREA BY DAYBREAK MONDAY. THE FRONT STALLS JUST SOUTHWEST OF THE REGION ON MONDAY WITH HIGH PRESSURE BUILDING IN FROM THE NORTHEAST.
924 AM EDT SUN MAY 17 2015 A WARM FRONT NORTH OF LAKE ERIE WILL LIFT SLOWLY NORTH TODAY AND TONIGHT. A COLD FRONT WILL PASS THROUGH THE AREA LATE MONDAY NIGHT. HIGH PRESSURE WILL BUILD IN TOWARD MID WEEK. WARM FRONT JUST TO OUR NORTH WITH SOUTHERLY FLOW CONTINUING TO BRING MOIST AIR INTO THE AREA OUT OF THE GULF REGION. MONDAY AFTERNOON THUNDERSTORMS WILL INCREASE AHEAD OF A COLD FRONT.
925 AM PDT Sun May 17 2015 Variable clouds and mainly mountain showers and afternoon thunderstorms through the coming week as a series of weak low pressure systems move across California. Next little wave of energy drops south off the coast of the Bay Area today reinforcing the trough over the area and bringing another day of showers and thunderstorms over the mountains. Increased cloud cover will result in slightly cooler temperatures for most areas today. Satellite imagery shows cloud cover spreading inland as the next upper low drops southward, centered off the northwestern California coast. A vortmax associated with the upper low will track inland around the Bay area by around mid-day. Shower activity could spread into the northern Sacramento Valley Sunday night into Monday morning as the low shifts inland.
902 AM PDT SUN MAY 17 2015 A SERIES OF WEAK LOW PRESSURE SYSTEMS WILL MAINTAIN BELOW AVERAGE INLAND TEMPERATURES.
/ISSUED 445 AM CDT SUN MAY 17 2015/ UPPER LEVEL LOW CURRENTLY OVER WESTERN NEBRASKA STARTING TO LIFT NORTHWARD. AS THE UPPER LOW MOVES INTO THE GREAT LAKES REGION STRONG SOUTHWESTERLY FLOW ALOFT WILL BEGIN TO WEAKEN TODAY. THE FORECAST AREA WILL HAVE SOME TIME TO DRY OUT TODAY AND MOST OF MONDAY BEFORE ANOTHER UPPER LEVEL TROUGH CURRENTLY OVER THE PACIFIC MOVES INLAND AND ACROSS THE SOUTHWEST MONDAY. A SURFACE COLD FRONT WILL CROSS THE PANHANDLES ON MONDAY WITH SOME DISTINCT TIMING DIFFERENCES IN THE MODEL SOLUTIONS. 00Z GFS/ECMWF QUITE A BIT FASTER WITH A STRONGER GRADIENT WIND AND HAVE SIDED MORE WITH THAT SOLUTION AS HIGH PRESSURE STRENGTHENS OVER THE NORTHERN PLAINS.
646 AM CDT SUN MAY 17 2015 FOR 12Z TAFS /ISSUED 415 AM CDT SUN MAY 17 2015/ UNSETTLED WEATHER PERSISTED ACROSS MUCH OF THE LOWER 48. AS UPPER LEVEL BLOCKING CONTINUED OVER THE WESTERN STATES. WEAK UPPER RIDGING WAS IN PLACE OVER THE SE STATES. SOME OF THE HIGHER RESOLUTION MESOSCALE MODELS. THE APPROACH OF A COLD FRONT DURING MONDAY WILL BRING LIKELY RAIN CHANCES TO THE AREA.
1234 PM EDT SUN MAY 17 2015 WEAK LOW PRESSURE WILL CROSS THE REGION TODAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT INTO MONDAY.
750 AM EDT SUN MAY 17 2015 DRY WEATHER TODAY WITH HIGH PRESSURE AT THE SURFACE AND ALOFT.
SOME VEERING NOTED IN THE WIND PROFILE IN THE LOWER LEVELS WITH AROUND 200 M2/S2 OF HELICITY. THESE VALUES WILL LIKELY DROP WITH THE VEERING OF THE LOW LEVEL WINDS AND RE-COUPLING. THE PERSISTENT PATTER OF MID LEVEL TROUGHING IN THE WEST AND RIDGING IN THE EAST WITH SOUTHWEST FLOW WILL CONTINUE TODAY. THE UPPER RIDGE WILL SHIFT EASTWARD TONIGHT INTO MONDAY WITH UPPER TROUGHING DEEPENING OVER THE AREA. A FAIRLY STRONG SHORT WAVE WILL DRIVE THE COLD FRONT INTO THE AREA ON MONDAY.
RAINFALL IS BEGINNING TO SPREAD BACK INTO THE CWA AS THE MAIN UPPER LOW ENERGY BEGINS MOVING INTO THE REGION. AS THE LOW MOVES NORTH OF THE REGION LATE THIS AFTERNOON AND EVENING. RIGHT NOW IT APPEARS THE BEST POTENTIAL FOR WIND ADVISORY SPEEDS WILL BE ACROSS THE NORTHERN CWA AND ESPECIALLY INTO THE HIGHER ELEVATION COTEAU REGION OF NORTHEAST SD. WILL THEN BE WATCHING THE COOL CANADIAN HIGH PRESSURE BUILDING SOUTH OVER THE DAKOTAS MONDAY INTO MONDAY NIGHT.
LATEST MAV AGAIN INCREASED POPS FOR TODAY BUT WE SEE NO CLEAR MECHANISM FOR SHOWERS WITH SHORT WAVE UPPER RIDGE OVERHEAD. NEXT PACIFIC UPPER LOW COMES INLAND VIA CALIF LATE TONIGHT AND NEVADA MONDAY WITH MORE MOISTURE NOVING INTO OUR AREA FROM THE SOUTH. MET TEMPS ARE ALSO A LITTLE WARMER THAN MAV WHICH IS CONSISTENT WITH THE LOWER POPS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL FORM MAINLY OVER THE HIGHER TERRAIN THIS AFTERNOON. A RETURN TO MORE INSTABILITY MONDAY AS WARMER LOW LAYER AIR MOVES IN ON SOUTHWEST FLOW ALOFT. THE AREA WILL BE UNDER A BROAD TROUGH PATTERN WITH A SERIES OF UPPER LOWS MOVING SOUTH ALONG THE PACIFIC COAST THEN INLAND NEAR CALIFORNIA.
MORNING SURFACE ANALYSIS FROM 14Z SHOWS MODERATE SOUTHEASTERLY FLOW ACROSS THE REGION ON THE SOUTHWESTERN EDGE OF A HIGH PRESSURE AREA JUST OFF THE COAST OF SOUTH CAROLINA. A LOW LEVEL MOISTURE GRADIENT WAS IN PLACE ACROSS THE FORECAST AREA WITH DEWPOINTS IN THE LOWER 70S IN THE FLORIDA PANHANDLE TO THE MID 60S ACROSS SOUTH CENTRAL GEORGIA.
A WEAK UPPER LEVEL RIDGE WILL MOVE IN THE GREAT BASIN BY THIS AFTERNOON.
1041 AM EDT SUN MAY 17 2015 WEAK LOW PRESSURE WILL CROSS THE REGION TODAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT INTO MONDAY.
MUCH OF THE WESTERN UNITED STATES REMAINS UNDER THE INFLUENCE OF A BROAD BUT ILL-DEFINED UPPER LEVEL LOW WHICH SPANS ACROSS MUCH OF THE REGION. WEAK HIGH PRESSURE WILL BUILD INTO EASTERN WASHINGTON TODAY AND MONDAY.
1113 AM EDT SUN MAY 17 2015 DRY WEATHER THIS AFTERNOON AND TONIGHT WITH HIGH PRESSURE AT THE SURFACE AND ALOFT.
508 AM MST SUN MAY 17 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY. HOWEVER ANOTHER PACIFIC LOW PRESSURE SYSTEM IS FORECAST TO MOVE INTO THE REGION MONDAY.
1241 PM EDT SUN MAY 17 2015 A BACKDOOR COLD FRONT APPROACHES FROM THE NORTH THIS AFTERNOON. THE FRONT STALLS JUST SOUTHWEST OF THE REGION ON MONDAY WITH HIGH PRESSURE BUILDING IN FROM THE NORTHEAST.
758 AM EDT SUN MAY 17 2015 AVIATION A WARM FRONT WILL LIFT NORTH TODAY PUTTING SOUTHERN LOWER MICHIGAN IN AN INCREASINGLY WARM AND HUMID AIRMASS. A STRONG COLD FRONT WILL MOVE THROUGH MONDAY BRINGING A CONTINUED CHANCE FOR A SHOWER OR THUNDERSTORM.
739 AM EDT SUN MAY 17 2015 A WARM FRONT NORTH OF LAKE ERIE WILL LIFT SLOWLY NORTH TODAY AND TONIGHT. A COLD FRONT WILL PASS THROUGH THE AREA LATE MONDAY NIGHT. HIGH PRESSURE WILL BUILD IN TOWARD MID WEEK. WARM FRONT JUST TO OUR NORTH WITH SOUTHERLY FLOW CONTINUING TO BRING MOIST AIR INTO THE AREA OUT OF THE GULF REGION. MONDAY AFTERNOON THUNDERSTORMS WILL INCREASE AHEAD OF A COLD FRONT.
748 AM EDT SUN MAY 17 2015 WEAK LOW PRESSURE WILL CROSS THE REGION TODAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT INTO MONDAY.
837 AM EDT SUN MAY 17 2015 WEAK LOW PRESSURE OVER THE REGION WILL SHIFT SOUTHEAST TODAY AND HIGH PRESSURE WILL BUILD IN FROM THE NORTHEAST TONIGHT THROUGH MONDAY.
733 AM EDT SUN MAY 17 2015 CLOUDS THIS MORNING WILL GIVE WAY TO SUNSHINE AS HIGH PRESSURE BUILDS ACROSS THE AREA. THE NEXT CHANCES FOR RAIN WILL BEGIN LATE MONDAY AS A COLD FRONT APPROACHES THE REGION.
WHILE DEWPOINT TEMPERATURES ARE IN THE LOWER TO MID 70S.
SOME SHOWERS MAY DRIFT WEST OVER THE LOWLANDS LATE THIS AFTERNOON.
09 /ISSUED 415 AM CDT SUN MAY 17 2015/ UNSETTLED WEATHER PERSISTED ACROSS MUCH OF THE LOWER 48. AS UPPER LEVEL BLOCKING CONTINUED OVER THE WESTERN STATES. WEAK UPPER RIDGING WAS IN PLACE OVER THE SE STATES. SOME OF THE HIGHER RESOLUTION MESOSCALE MODELS. THE APPROACH OF A COLD FRONT DURING MONDAY WILL BRING LIKELY RAIN CHANCES TO THE AREA.
1037 AM EDT SUN MAY 17 2015 BERMUDA HIGH PRESSURE WILL CONTINUE TO PUMP HUMIDITY OVER THE REGION THE REMAINDER OF THIS WEEKEND. A BACK DOOR COLD FRONT WILL SLIDE SOUTH INTO THE AREA MONDAY BEFORE DISSIPATING.
747 AM EDT SUN MAY 17 2015 CLOUDS THIS MORNING WILL GIVE WAY TO SUNSHINE AS HIGH PRESSURE BUILDS ACROSS THE AREA. THE NEXT CHANCES FOR RAIN WILL BEGIN LATE MONDAY AS A COLD FRONT APPROACHES THE REGION.
1224 PM EDT SUN MAY 17 2015 WEAK LOW PRESSURE OVER THE REGION WILL SHIFT SOUTHEAST TODAY AND HIGH PRESSURE WILL BUILD IN FROM THE NORTHEAST TONIGHT THROUGH MONDAY.
429 AM PDT Sun May 17 2015 Variable clouds and mainly mountain showers and afternoon thunderstorms through the coming week as a series of weak low pressure systems move across California. Satellite imagery shows cloud cover spreading inland as the next upper low drops southward, centered off the northwestern California coast. A vortmax associated with the upper low will track inland around the Bay area by around mid-day. Shower activity could spread into the northern Sacramento Valley Sunday night into Monday morning as the low shifts inland.
MORE LOW-LEVEL MOISTURE WILL ADVECT IN WITH A FEW SPOTTY SHOWERS POSSIBLE CLOSER TO DAYBREAK AHEAD OF AND ALONG A QUICK MOVING COLD FRONT. WATER VAPOR IMAGERY SHOWS THE SHORT WAVE TROUGH MOVING INTO WEST TEXAS. THIS SHORT WAVE TROUGH WILL MOVE SOUTHEAST THROUGH CENTRAL TEXAS TONIGHT AND INTO SOUTHEAST TEXAS SATURDAY MORNING. MOISTURE WILL CONTINUE TO INCREASE IN THE LOWER LEVELS BUT LOW LEVEL WARM AIR ADVECTION IS NOT VERY STRONG. EXPECT ISOLATED TO SCATTERED SHOWERS TO FORM MAINLY AFTER MIDNIGHT AND SHIFT TO THE EAST AS THE COLD FRONT ADVANCES INTO THE COASTAL WATERS SATURDAY MORNING. COLD FRONT WILL ENTER THE COASTAL WATERS LATE TONIGHT.
HIGH PRESSURE WILL SLOWLY DRIFT WEST TO EAST OVER CENTRAL ALABAMA.
A FAST MOVING MINOR UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TRACKING SEWD ACOSS THE AREA EARLY THIS EVENING. THE WIND WILL BECOME SW AT ALL TERMINAL SITES BY MID MORNING SATURDAY AS A SURFACE TROF OF LOW PRESSURE BEGINS TO ORGANIZE IN ERN CO AND NERN NM.
VALLEYS ARE ALREADY DROPPING FAST WITH VALLEYS ALREADY INTO THE LOW TO MID 30S. LOWERED TEMPERATURES A BIT IN THE VALLEYS AND ON RIDGES TO MATCH THE COLDER GUIDANCE A BIT BETTER.
624 PM EST FRI FEB 5 2016 LOW PRESSURE WILL PASS SOUTH OF NOVA SCOTIA THIS EVENING WITH SNOW ENDING ACROSS EASTERN NEW ENGLAND.
548 PM CST FRI FEB 5 2016 AS LOW PRESSURE DROPS SOUTHEAST TOWARDS THE OZARKS. LIGHT WESTERLY WINDS WILL DEVELOP OVER THE HIGH PLAINS AND ADJACENT SANDHILLS. WESTERLY LOWER TROPOSPHERIC FLOW OFF THE HIGH PLAINS WILL PROMOTE A NOTICEABLE WARMUP. THE HIGH TEMPERATURE FORECAST WILL RANGE FROM THE UPPER 30S OVER THE DEEP SNOWPACK. CURRENT INDICATIONS ARE THAT THE WIND WILL BE NORTH TO NORTHWEST AT 25 TO 35 MPH AND GUSTING TO 45 OR 50 MPH WHICH IS BELOW THE HIGH WIND THRESHOLD.
930 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL MOVE EAST TONIGHT INTO SATURDAY AS A WEAK WEATHER DISTURBANCE ALOFT PASSES ACROSS THE GREAT LAKES.
408 PM CST FRI FEB 5 2016 CURRENT SURFACE ANALYSIS PLACES WEAK TROUGH MOVING THROUGH THE RED RIVER VALLEY WITH RIDGE OVER THE ROCKIES. UPPER LEVEL ANALYSIS PLACES RIDGE OVER THE WESTERN CONUS WITH TROUGH STRETCHING FROM THE SOUTHERN PLAINS NORTHWARD INTO THE UPPER MIDWEST. QUIET WEATHER CONTINUES TONIGHT AS RIDGE BUILDS EASTERLY AS A TROUGH PUSHES TOWARDS THE NORTHERN ROCKIES. TROUGH CONTINUES TO PUSH EASTERLY WITH UPPER LOW CLOSING OFF NEAR THE CANADIAN BORDER. COOLER AIRMASS STARTS TO WORK INTO WESTERN LOCATIONS LATER IN THE DAY WITH WESTERLY WIND INCREASING.
HIGH PRESSURE WAS SETTLING OVER THE FORECAST AREA THIS EVENING WITH SOME HIGHER LEVEL CLOUDS MOVING EAST ACROSS THE TN VALLEY. DEW POINTS WERE IN THE LOWER 20S AND TEENS.
549 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. STRATUS DECREASING ACROSS NORTH CENTRAL AND EAST CENTRAL PA THIS EVENING AS HIGH PRESSURE BUILDS AND INVERSION HEIGHTS LOWER. AN UPPER LEVEL LOW THAT WILL BE MOVING THROUGH THE SOUTHERN STATES WILL SLOWLY MAKE ITS WAY UP THE EASTERN SEABOARD. HOWEVER CURRENT ENSEMBLES SHOW A PROLONGED PERIOD OF LIGHT- MODERATE PRECIP FAVORING THE HIGHER WESTERN AND NORTHERN AREAS. THE SEEMINGLY MOST CERTAIN PART OF THE FORECAST IS THAT THE UPPER TROUGH IS EXPECTED TO BE SLOW MOVING OVER THE EASTERN US. HIGH PRESSURE OVER THE OHIO VALLEY WILL EXPAND NORTHEAST INTO PA.
548 PM CST FRI FEB 5 2016 WATER VAPOR IMAGERY THIS AFTERNOON SHOWING ELONGATED MID-LEVEL TROUGH ROTATING EAST THROUGH WESTERN MN/IA. WILL KEEP SNOW CHANCES ON THE LOWER END WITH POSSIBLY A DUSTING TO 1/2 INCH AT MOST. ALSO WILL SEE A CHANCE FOR SOME FOG OVERNIGHT ACROSS PORTIONS OF NORTHEAST IA/SOUTHEAST MN AS SOUTHWEST WINDS DRAW WARMER/MOIST AIR FROM THE PLAINS OVER THE COLD SNOW PACK. QUIET WITH SOME WARMING TAKES PLACE SATURDAY IN THE WARM SECTOR OF LOW PRESSURE TRACKING FROM THE ALBERTA ROCKIES AND ALONG THE U. PLAN ON HIGHS IN THE LOWER TO MIDDLE 30S. WARM AIR ADVECTION CONTINUES THROUGH SATURDAY NIGHT AS THE LOW TRACKS INTO NORTHERN MN.
503 PM EST FRI FEB 5 2016 WARMER TEMPERATURES ARE EXPECTED THROUGH THE WEEKEND.
916 PM CST FRI FEB 5 2016 WINDS HAVE ALREADY DROPPED OUT AT MOST PLACES SO THE HIGH CLOUDS MOVING OVER THE AREA TONIGHT WILL BE THE BIGGEST EFFECT ON LOW TEMPERATURES.
CURRENT SURFACE ANALYSIS PLACES WEAK TROUGH MOVING THROUGH THE RED RIVER VALLEY WITH RIDGE OVER THE ROCKIES. UPPER LEVEL ANALYSIS PLACES RIDGE OVER THE WESTERN CONUS WITH TROUGH STRETCHING FROM THE SOUTHERN PLAINS NORTHWARD INTO THE UPPER MIDWEST. QUIET WEATHER CONTINUES TONIGHT AS RIDGE BUILDS EASTERLY AS A TROUGH PUSHES TOWARDS THE NORTHERN ROCKIES. TROUGH CONTINUES TO PUSH EASTERLY WITH UPPER LOW CLOSING OFF NEAR THE CANADIAN BORDER. COOLER AIRMASS STARTS TO WORK INTO WESTERN LOCATIONS LATER IN THE DAY WITH WESTERLY WIND INCREASING.
924 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD OVER THE AREA TONIGHT, THEN MOVE OFFSHORE ON SATURDAY.
A SECOND AND MORE AMPLIFIED SHORT WAVE TROUGH FROM SOUTHWEST KANSAS ACROSS THE PAN HANDLES OF TEXAS AND OKLAHOMA AND INTO SOUTHEAST NEW MEXICO AND WEST TEXAS AND NORTHEAST MEXICO. TEMPERATURES WILL BE BELOW FREEZING BRIEFLY OVER PARTS OF SOUTHEAST OKLAHOMA AND MAY PROVIDE A PERIOD OF A MIX OF LIGHT FREEZING RAIN OR RAIN BEFORE TEMPERATURES WARM ABOVE FREEZING. BRIEF RIDGING ON THE SURFACE AND ALOFT WILL MOVE OVER THE AREA ALLOWING FOR A GRADUAL WARM UP IN TEMPERATURES THROUGH REMAINDER OF THE WEEKEND. A LARGE AMPLIFIED WEST COAST RIDGE DEVELOPS WITH A TROUGH OF LOW PRESSURE AMPLIFYING OVER THE EASTERN PARTS OF THE COUNTRY WITH A SUPPLY OF COLD AIR IN STORE FOR THE FOUR STATE REGION THROUGH AROUND MID WEEK. /ISSUED 1028 AM CST FRI FEB 5 2016/ SHORT WAVE TROUGH CENTERED OVER KS TO CONTINUE MOVING E THROUGH SATURDAY.
811 PM EST FRI FEB 5 2016 AVIATION A WEAK AREA OF HIGH PRESSURE IN IOWA WILL BUILD EAST TONIGHT THROUGH SATURDAY.
SATURDAY'S HIGHS ARE 5-7 C WARMER THAN TODAY'S HIGHS. THIS PATTERN WILL PRODUCE WINDY CONDITIONS FROM THE EAST SLOPES OF THE MOUNTAINS INTO THE HIGHER FOOTHILLS.
1009 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. AN UPPER LEVEL LOW THAT WILL BE MOVING THROUGH THE SOUTHERN STATES WILL SLOWLY MAKE ITS WAY UP THE EASTERN SEABOARD. HOWEVER CURRENT ENSEMBLES SHOW A PROLONGED PERIOD OF LIGHT- MODERATE PRECIP FAVORING THE HIGHER WESTERN AND NORTHERN AREAS. THE SEEMINGLY MOST CERTAIN PART OF THE FORECAST IS THAT THE UPPER TROUGH IS EXPECTED TO BE SLOW MOVING OVER THE EASTERN US. HIGH PRESSURE OVER PENNSYLVANIA WILL BRING A NEAR CERTAINTY OF WIDESPREAD VFR CONDS AND RELATIVELY LIGHT WIND BOTH TONIGHT AND SATURDAY.
MIDDLE TENNESSEE IS UNDER THE INFLUENCE OF HIGH PRESSURE SLIDING EAST OVER THE AREA.
607 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL MOVE SOUTHEAST OF THE AREA TONIGHT AS LOW PRESSURE MOVES ACROSS THE NORTHERN GREAT LAKES TO EASTERN ONTARIO. THE LOW WILL MOVE INTO QUEBEC SATURDAY.
507 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. THE BREAKS OF SUN AND GENERALLY ABOVE FREEZING TEMPS THERE WILL KEEP MOST PLACES FROM ACCUMULATIONS. AN UPPER LEVEL LOW THAT WILL BE MOVING THROUGH THE SOUTHERN STATES WILL SLOWLY MAKE ITS WAY UP THE EASTERN SEABOARD. HOWEVER CURRENT ENSEMBLES SHOW A PROLONGED PERIOD OF LIGHT- MODERATE PRECIP FAVORING THE HIGHER WESTERN AND NORTHERN AREAS. THE SEEMINGLY MOST CERTAIN PART OF THE FORECAST IS THAT THE UPPER TROUGH IS EXPECTED TO BE SLOW MOVING OVER THE EASTERN US. HIGH PRESSURE OVER THE OHIO VALLEY WILL EXPAND NORTHEAST INTO PA.
1007 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. AN UPPER LEVEL LOW THAT WILL BE MOVING THROUGH THE SOUTHERN STATES WILL SLOWLY MAKE ITS WAY UP THE EASTERN SEABOARD. HOWEVER CURRENT ENSEMBLES SHOW A PROLONGED PERIOD OF LIGHT- MODERATE PRECIP FAVORING THE HIGHER WESTERN AND NORTHERN AREAS. THE SEEMINGLY MOST CERTAIN PART OF THE FORECAST IS THAT THE UPPER TROUGH IS EXPECTED TO BE SLOW MOVING OVER THE EASTERN US. HIGH PRESSURE OVER PENNSYLVANIA WILL BRING A NEAR CERTAINTY OF WIDESPREAD VFR CONDS AND RELATIVELY LIGHT WIND BOTH TONIGHT AND SATURDAY.
611 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD OVERHEAD THROUGH SATURDAY.
/ISSUED 242 PM CST FRI FEB 5 2016/ A FAST-MOVING UPPER TROUGH WILL BRING A SMALL CHANCE FOR RAIN OVER CENTRAL AND EASTERN OKLAHOMA TONIGHT.
COLD FRONT WILL ALSO CONTINUE TO MOVE ACROSS THE REGION TONIGHT BRINGING SOME COLDER AIR TO THE FA. /ISSUED 242 PM CST FRI FEB 5 2016/ A FAST-MOVING UPPER TROUGH WILL BRING A SMALL CHANCE FOR RAIN OVER CENTRAL AND EASTERN OKLAHOMA TONIGHT.
TEMPS HAVE MANAGED TO SLIP INTO PREDOM THE LOWER/MID 30S OVER MUCH OF THE AREA. WITH DEW PT TRENDS IN THE LOWER/MID 20S. AS THE CENTER OF THE HIGH PRESSURE SETTLES OVER THE AREA. HIGH PRESSURE OVER THE THIS REGION WAS BRINGING LIGHT/ VARIABLE WINDS TO THE REGION.
BUT WITH THE TROUGH CLEARING THE AREA IN THE 01Z-03Z TIME FRAME. SW FLOW WILL VEER TO WNW BRIEFLY IN THE WAKE OF THIS TROUGH. BUT BACK TO SW ONCE AGAIN IN ADVANCE OF THE NEXT FAST APPROACH TROUGH. AS TROUGH WORKS THROUGH TERMINAL. SOLID LOW LEVEL (925-850 MB) THETA-E RIDGE/(2+ G/KG OF SPECIFIC HUMIDITY)/CONVERGENCE/ TRAVERSING THROUGH LOWER MICHIGAN TODAY GENERATING SOME LAKE MICHIGAN ENHANCED SCATTERED LIGHT SNOW SHOWER/FLURRY ACTIVITY (MAINLY NORTH OF I- 69). DESPITE BEING EMBEDDED UNDERNEATH AN UPPER LEVEL RIDGE OUT AHEAD OF THE CENTRAL NORTH AMERICAN TROUGH. WITH 500 MB CLOSED LOW/CIRCULATION DEVELOPING.
630 PM EST FRI FEB 5 2016 NO MAJOR CHANGES PLANNED TO THE OVERNIGHT FORECAST PACKAGE AT THIS TIME AS A COOL DOME OF HIGH PRESSURE DOMINATES TONIGHT. RESULTS IN LOWS GENERALLY AT OR BELOW FREEZING FOR ALL AREAS. POTENTIAL INCREASING FOR SOME ACCUMULATING SNOW ACROSS PORTIONS HIGH PRESSURE MOVING OVER THE SOUTHEAST WILL KEEP THE FORECAST AREA DRY THROUGH THE PERIOD. TEMPERATURES WILL BE COLD WITH OVERNIGHT LOWS NEAR OR JUST BELOW FREEZING TONIGHT AND SATURDAY NIGHT ACROSS THE AREA.
600 PM CST FRI FEB 5 2016 A northern stream short wave trof over the eastern Dakotas into central Nebraska, will track into nw IL by dawn Saturday. 1033 mb high pressure over the southern MS river valley and ridging northward into eastern MO and sw IL will gradually shift into the southeast states into Sat morning.
636 PM EST FRI FEB 5 2016 LOW PRESSURE WILL PASS SOUTH OF NOVA SCOTIA THIS EVENING WITH SNOW ENDING ACROSS EASTERN NEW ENGLAND.
748 PM EST FRI FEB 5 2016 WARMER-THAN-NORMAL TEMPERATURES ARE EXPECTED FOR THE WEEKEND.
825 PM EST FRI FEB 5 2016 WARMER-THAN-NORMAL TEMPERATURES ARE EXPECTED FOR THE WEEKEND.
DESPITE THE HIGH CLOUDS. THIS WON'T HAVE MUCH IMPACT ON TEMPERATURES AND IN FACT VALLEYS ARE ALREADY INTO THE MID 20S WITH RIDGES FALLING INTO THE LOW 30S. VALLEYS ARE ALREADY DROPPING FAST WITH VALLEYS ALREADY INTO THE LOW TO MID 30S. LOWERED TEMPERATURES A BIT IN THE VALLEYS AND ON RIDGES TO MATCH THE COLDER GUIDANCE A BIT BETTER.
SOUTH OF A LARGE CONTINENTAL HIGH PRESSURE CELL CENTERED OVER THE EASTERN UNITED STATES. AN AREA OF LOW PRESSURE WILL DEVELOP NEAR THE NORTHERN BAHAMAS SATURDAY.
933 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL MOVE SOUTHEAST OF THE AREA TONIGHT AS LOW PRESSURE MOVES ACROSS THE NORTHERN GREAT LAKES TO EASTERN ONTARIO. THE LOW WILL MOVE INTO QUEBEC SATURDAY.
954 PM EST FRI FEB 5 2016 LOW PRESSURE WILL PASS SOUTH OF NOVA SCOTIA THIS EVENING WITH SNOW ENDING ACROSS EASTERN NEW ENGLAND.
/ISSUED 325 PM CST FRI FEB 5 2016/ A weak upper low pressure was positioned over the Texas Panhandle this afternoon. This area of low pressure was progressing southeastward with increasing cloud cover over Eastern Oklahoma and Northwest Arkansas. A wind shift out of the northwest was also apparent to the west of a trof axis. the area of low pressure is expected to continue to push southeast into Central Texas and then into Eastern Texas Saturday morning. As the low moves through the region tonight into Saturday morning. mainly near the vicinity of the low. closer to the center of the low. where surface temps are expected to be near/below freezing. These conditions should keep temps a few degrees cooler compared to today. winds return out of the southwest ahead of a cold front dropping south through the Central United States.
644 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL MOVE EAST TONIGHT INTO SATURDAY AS A WEAK WEATHER DISTURBANCE ALOFT PASSES ACROSS THE GREAT LAKES.
917 PM EST FRI FEB 5 2016 HIGH PRESSURE WILL BUILD OVERHEAD THROUGH SATURDAY.