Aikyam-Lab/Synoptic-Bench huggingface dataset:
THERE WILL BE ENOUGH MOISTURE COMBINED WITH DECENT LAPSE RATES FOR SCT SHOWERS AND ISOLD STORMS OVER THE HIGHER TERRAIN THIS AFTN WITH WDLY SCT ACTIVITY ALONG THE FRONT RANGE MAINLY THIS EVENING. ON WEDNESDAY A WEAK UPPER LEVEL RIDGE AXIS WILL MOVE ACROSS COLORADO. TRANSITIONING FROM NORTHWEST/WESTERLY THROUGH THE DAY AS WEAK UPPER LEVEL RIDGE AXIS SHIFTS FM UTAH INTO WESTERN COLORADO. SOME LOW LEVEL CONVERGENCE ALONG THE FRONT RANGE WITH SFC EAST TO SOUTHEASTERLY WINDS IN THE AFTN WHICH WOULD INDUCE A DENVER CYCLONE. STRONGEST SHEAR WOULD BE IN THE LOW LEVELS.
WILL LIKELY BE A BIT COOLER WHEN IT DOES RAIN AND WARMER WHEN IT DOES NOT. LATER TODAY THERE WILL BE A CHANCE FOR SOME DIURNALLY DRIVEN THUNDERSTORMS AND THEN TONIGHT A COLD FRONT WILL MOVE THROUGH THE REGION WITH ANOTHER CHANCE OF SHOWERS. WINDS WILL BE MAINLY WESTERLY THROUGH THE DAY BECOMING NORTHERLY TO NORTHEASTERLY AS THE COLD FRONT MOVES THROUGH TONIGHT.
1154 AM EDT TUE APR 21 2015 A TROUGH/SECONDARY COLD FRONT WILL MOVE ACROSS THE AREA LATE TODAY USHERING IN MUCH COOLER CONDITIONS.
THE PANHANDLE AREA WILL REACH THE LOW 80S TODAY. TONIGHT TEMPERATURES WILL GET DOWN INTO THE UPPER 50S FOR MOST OF THE INLAND AREAS WHILE THE COAST WIL BE IN THE LOW 60S.
NORTH TO NORTHWEST WINDS BEHIND THE COOL FRONT WILL CONTINUE ACROSS THE WATERS THIS AFTERNOON THEN VEER AROUND TO THE NORTHEAST AND EAST TONIGHT AND INCREASE SOME AS HIGH PRESSURE MOVES BY TO THE NORTH.
THANKS TO INCREASED SUNSHINE, HIGH TEMPERATURES WILL BE A FEW DEGREES WARMER THAN YESTERDAY, WITH READINGS CLIMBING INTO THE LOWER TO MIDDLE 60S.
BROAD TROUGHING OVER THE EASTERN STATES WILL BECOME WELL ESTABLISHED AS THE ASSOCIATED UPPER LOW SWINGS ACROSS THE NORTHERN GREAT LAKES TODAY. WITH THE TROUGH IN PLACE AND JET SAGGING FARTHER SOUTH.
440 AM PDT TUE APR 21 2015 A WEAK LOW PRESSURE SYSTEM OFF THE CALIFORNIA COAST WILL MOVE INLAND TODAY BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING.
1009 AM EDT TUE APR 21 2015 A STRONG LOW PRESSURE SYSTEM OVER THE GREAT LAKES WILL BRING VERY WINDY CONDITIONS TODAY ALONG WITH A CHANCE OF SHOWERS AT TIMES TONIGHT INTO WEDNESDAY MORNING.
359 AM CDT THU APR 7 2016 WATER VAPOR LOOP INDICATED UPPER LEVEL TROUGH WAS OVER NORTHEAST ND AND WILL MOVE SOUTHEAST TODAY. NEXT UPPER LEVEL TROUGH WAS OVER NORTH MAN AND WILL MOVE OVER SOUTHWEST ONTARIO TONIGHT. MAN TROUGH WILL KEEP PRECIP ACTIVE IN THE FAR EASTERN ZONES FOR TONIGHT AND FRI. NEXT UPPER TROUGH OVER THE NORTHEAST PACIFIC WILL MOVE INTO SOUTHERN MAN SAT NIGHT.
HIGH TEMPERATURES WILL REACH INTO THE LOW TO MID 40S TODAY. MUCH DISCUSSION ABOUT WHETHER TO ISSUE HEADLINES FOR THE SUB- FREEZING TEMPERATURES THIS WEEKEND BASED ON GROWTH. LOW LEVEL WARM/MOIST ADVECTION IN ADVANCE OF THE LOW SHOULD ALLOW PRECIP TO INITIALLY BE MAINLY LIQUID WITH COLD/DRY AIR ADVECTION FRI AFTN/NIGHT SUPPORTING A TRANSITION TO SNOW.
359 AM CDT THU APR 7 2016 EARLY MORNING SURFACE ANALYSIS SHOWED THE COLD FRONT THAT MOVED ACROSS THE REGION YESTERDAY HAS FINALLY PUSHED INTO THE OFFSHORE WATERS. AN UPPER DISTURBANCE DROPPING SOUTH OUT OF CANADA EARLY THIS MORNING ON WATER VAPOR IMAGERY WILL HELP PUSH THE CENTRAL PLAINS COLD FRONT TOWARDS THE REGION TODAY.
High pressure will be the main story through the rest of this week, pushing temperatures today some 15 to 20 degrees above normal.
Light/variable sfc flow will generally veer around to NW today, as a weak cold front approaches and moves thru tonight. Weak upper ridging and returning southerly winds will allow for a quick warm-up this afternoon. A weak cold front will slowly move across the area tonight before washing out during the day Friday. Meanwhile, an upper trough will move onshore into S CA and weaken late this week.
1145 PM MDT WED APR 6 2016 A HIGH AMPLITUDE RIDGE WILL REMAIN OVER THE REGION THROUGH THURSDAY NIGHT. A SIGNIFICANT INCREASE IN CLOUD COVER IS EXPECTED ON FRIDAY PROGRESSING FROM SOUTHWEST TO NORTHEAST AS A CLOSED LOW OVER THE EASTERN PACIFIC PUMPS MOISTURE INTO THE FOUR CORNERS. THIS WILL KEEP MAX TEMPERATURES ON FRIDAY A FEW DEGREES COOLER OVER THE FOUR CORNERS.
428 AM EDT THU APR 7 2016 A SLOW MOVING COLD FRONT, WILL BRING RAIN TO THE REGION TODAY.
FORECAST MODEL SOUNDINGS AND PV ANALYSIS INDICATE THAT UPPER RIDGING CENTERED ALONG A WESTERN NEVADA TO FAR WEST TEXAS AXIS AT 00Z THURSDAY IS PROJECTED TO BECOME LOCATED ALONG A SOUTHERN IDAHO INTO CENTRAL NEW MEXICO AXIS BY 00Z FRIDAY. THIS FIRST WAVE WILL BRING SOME SNOW AND RAIN SHOWERS TO THE MOUNTAINS BUT WEAKENS CONSIDERABLY AS IT MOVES INTO THE RIDGE OVER COLORADO.
DEEP EASTERN STATES UPPER TROUGH WITH ASSOCIATED SHORT WAVE ENERGY MOVES VERY SLOWLY EAST ACROSS THE REGION TODAY BRINGING SOME LIGHT RAIN SHOWERS COOLER TEMPERATURES. THE RAIN SHOWERS WILL GRADUALLY TAPER OFF ACROSS THE REGION TONIGHT BUT MAY CONTINUE IN THE HIGHER ELEVATIONS ACROSS SOUTHWEST VIRGINIA AND ALONG THE NORTH CAROLINA BORDER THROUGH THE OVERNIGHT HOURS.
505 AM CDT THU APR 7 2016 WEAK HIGH PRESSURE AROUND 1016MB HAS FAIR SKIES OVERHEAD WITH QUITE A RANGE OF TEMPERATURES FROM LOWER 40S WHERE WINDS ARE CALM. BUT OUR HIGHS WILL END UP WARMER TODAY THAN YESTERDAY AND WELL ABOVE AVERAGE WITH A SLIGHT BACKING IN THE WINDS TO W/SW. REINFORCING HIGH PRESSURE IS ON THE WAY AND WILL SPILL IN FROM THE NORTH EARLY TOMORROW WITH FRESH COOL AIR ADVECTION AS A 1024MB HIGH ARRIVES ON NORTHERLY WINDS TO WRAP UP THE WORK WEEK.
A LOW PRESSURE SYSTEM TO OUR SOUTH WILL BRING THICKER CLOUDS AND AN INCREASING CHANCE OF SHOWERS TODAY.
A STRONG RIDGE WILL PRODUCE ANOTHER DAY OF NEAR RECORD HIGH TEMPERATURES. THOUGH THE COOLER READINGS WILL STILL BE GENERALLY ABOVE NORMAL. A BROAD UPPER LEVEL TROUGH WILL MOVE INTO SOUTHERN CALIFORNIA AS THE STRONG RIDGE SHIFTS EAST OF THE CASCADES. THE MAIN LOW PRESSURE WILL CONTINUE TO MOVE EAST INTO SOUTHERN NEVADA BUT THE WRAPPED AROUND MOISTURE IS EXPECTED TO BE DEEP ENOUGH TO SPREAD NORTH INTO SOUTHERN OREGON THIS WEEKEND. THE ECMWF ON THE OTHER HAND WANTS TO BRING A COLD FRONT THROUGH IN A MORE CONSOLIDATED JETSTREAM FLOW WITH A MUCH COLDER AIR INTO SOUTHERN OREGON AROUND WED OR THURSDAY.
542 AM EDT THU APR 7 2016 SHOWERS AND THUNDERSTORMS WILL OCCUR ALONG A COLD FRONT EARLY THIS MORNING. COLD HIGH PRESSURE WILL DOMINATE OVER THE WEEKEND. RADAR SHOWED THE BAND OF SHOWERS AND THUNDERSTORMS AHEAD OF THE COLD FRONT EXITING THE EAST MIDLANDS EARLY THIS MORNING. LEANED TOWARD THE HIGHER TEMPERATURE GUIDANCE TODAY BECAUSE OF A RELATIVELY WARM START. THE TROUGH WILL BEGIN TRACKING AWAY FROM THE AREA FRIDAY. CANADIAN HIGH PRESSURE WILL DOMINATE EARLY IN THE PERIOD.
608 AM EDT THU APR 7 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW AN UPPER TROUGH OVER THE EASTERN U.
THE HIGH MOISTURE PROFILE SUPPORTS MVFR CLOUD THROUGH MUCH OF TODAY. SHORT WAVELENGTH RIDGING WILL PUSH ACROSS THE STATE OVERNIGHT. ISSUED 348 AM EDT THU APR 7 2016 LONGWAVE TROUGH NOW POSITIONED OVER THE GREAT LAKES WILL HOLD THROUGH THE FIRST HALF OF THE WEEKEND. WHILE DEEPENING AS A STRONG VORT MAX ENTERS THE TROUGH WITH THE HELP OF A 140KT JET. THIS WILL REINFORCE THE WESTERN SIDE OF THE TROUGH. THIS WILL BE ENOUGH TO KEEP WET BULB TEMPS BELOW FREEZING SO ANY SHOWER ACTIVITY SHOULD BE SNOW HEADING INTO THE WEEKEND. CAA PATTERN WILL KICK UP IN THE WAKE OF THE EXITING LOW PRESSURE SYSTEM. AND LL LAPSE RATES STEEPEN IN THE LOWEST 5KFT. THIS WILL BE A SHORT DRY PERIOD WITH THE NEXT CLIPPER ALREADY ADVANCING SOUTHWARD THROUGH THE TROUGH.
Periodic mid cloud ceilings possible NE OK / NW AR with gusty afternoon winds behind passing cold front. One change from the previous forecast has been to increase wind speeds during the afternoon, siding with the higher guidance values. The front should have little effect on the high temperatures today, given that there should still be a westerly, downslope component to the winds. The lower dew points and the well above normal afternoon temperatures will lead to very low afternoon relative humidities.
543 AM CDT THU APR 7 2016 A NEW COLD FRONT WILL DROP SOUTH THROUGH THE AREA TODAY. EXPECT THE COLD FRONT ASSOCIATED WITH THIS INCREASED CLOUD COVER TO DROP SOUTH THROUGH THIS STATE BY LATE THIS AFTERNOON.
One change from the previous forecast has been to increase wind speeds during the afternoon, siding with the higher guidance values. The front should have little effect on the high temperatures today, given that there should still be a westerly, downslope component to the winds. The lower dew points and the well above normal afternoon temperatures will lead to very low afternoon relative humidities.
346 AM CDT THU APR 7 2016 (Today and Tonight) Today will be sunny and dry with afternoon highs in the mid 80s, around 10 degrees warmer than average for this date. Upper level ridging will continue to build into the area from the west while at the surface a weak cold front will move south through the forecast area overnight tonight shifting winds to the east. lows tomorrow morning under mostly clear skies will be in the low to mid 50s, still around 5 degrees warmer than average for this date.
314 AM EDT THU APR 7 2016 SHOWERS AHEAD OF A COLD FRONT TODAY WILL GIVE WAY TO CLEARING LATER IN THE DAY. A SERIES OF DRY COLD FRONTS WILL BRING INCREASINGLY COLD AIR INTO THE AREA OVER THE WEEKEND.
UPPER LEVEL RIDGE WILL CONTINUE TO BUILD ACROSS THE PACIFIC NORTHWEST TONIGHT INTO THURSDAY. EXPECT MOSTLY SUNNY TOMORROW WITH LESS CIRRUS AS THE RIDGE AXIS WILL BE OVER THE AREA. UPPER LOW MOVING INTO CALIFORNIA ON FRIDAY WITH RIDGE REMAINING OVER THE REGION. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE LOW WILL REMAIN SOUTH OF THE FORECAST AREA. A SLIGHT CHANCE OF SHOWERS IS FORECAST FOR DESCHUTES COUNTY FOR FRIDAY NIGHT AS A CLOSED LOW OFF THE CALIFORNIA COAST CIRCULATES MOISTURE AND ENERGY OVER SOUTHERN OREGON.
A SERIES OF COLD FRONTS WILL CROSS CENTRAL NC THROUGH FRIDAY NIGHT.
THE UPPER RIDGE AXIS FROM MEXICO NORTHWEST INTO THE DESERT SOUTHWEST IS EXPECTED TO MOVE TO THE EAST AND BE FROM THE SOUTHERN HIGH PLAINS INTO SOUTH TEXAS FRIDAY. VEIL OF CIRRUS WILL BE OVER SOUTH TEXAS TODAY WITH MID/HIGH LEVEL CLOUDINESS INCREASING FROM THE WEST AS THE RIDGE AXIS MOVES EAST TONIGHT AND FRIDAY. THE LOW LEVEL THERMAL PROFILE WILL BE SLIGHTLY WARMER THAN YESTERDAY AND EXPECT HIGHS TO BE NEAR YESTERDAY'S HIGHS FOR COASTAL PLAINS AND WARMER OVER THE BRUSH COUNTRY. A SHORT WAVE TROUGH DIVING THROUGH THE PLAINS TODAY AND THROUGH THE MID MISSISIPPI RIVER VALLEY WILL LEAD TO ANOTHER SURGE OF HIGH PRESSURE THAT WILL MOVE THROUGH EAST/SOUTHEAST TEXAS ON FRIDAY AND INCREASE ONSHORE FLOW OVER THE NORTHWEST GULF INTO SOUTH TEXAS. SLIGHTLY COOLER LOW LEVEL THERMAL PROFILE WILL RESULT IN HIGHS 1-2 CATEGORIES LOWER ON FRIDAY.
414 AM EDT THU APR 7 2016 LOW PRESSURE JUST EAST OF LAKE HURON WITH A COLD FRONT TRAILING SOUTHWARD ACROSS EASTERN OHIO WILL MOVE EASTWARD THROUGH THE MORNING. ANOTHER AREA OF LOW PRESSURE WILL DIVE INTO THE CENTRAL GREAT LAKES ON FRIDAY.
EXPECT THE COLD FRONT ASSOCIATED WITH THIS INCREASED CLOUD COVER TO DROP SOUTH THROUGH THIS STATE BY LATE THIS AFTERNOON.
WITH WEAK HIGH PRESSURE BUILDING FROM THE WEST THIS AFTERNOON. THE AIRMASS BEHIND THIS BOUNDARY IS NOTICEABLY COOLER.
437 AM EDT THU APR 7 2016 SHOWERS AND THUNDERSTORMS WILL OCCUR ALONG A COLD FRONT EARLY THIS MORNING. COLD HIGH PRESSURE WILL DOMINATE OVER THE WEEKEND. SHOWERS AND THUNDERSTORMS WERE IN THE FORECAST AREA EARLY THIS MORNING AHEAD OF THE COLD FRONT. THE HIGH-RESOLUTION MODELS AND RADAR TRENDS SUPPORT THE SHOWERS EXITING THE FORECAST AREA EARLY THIS MORNING. LEANED TOWARD THE HIGHER TEMPERATURE GUIDANCE TODAY BECAUSE OF A RELATIVELY WARM START. THE TROUGH WILL BEGIN TRACKING AWAY FROM THE AREA FRIDAY. CANADIAN HIGH PRESSURE WILL DOMINATE EARLY IN THE PERIOD.
526 AM EDT THU APR 7 2016 SHOWERS AND THUNDERSTORMS WILL OCCUR ALONG A COLD FRONT EARLY THIS MORNING. COLD HIGH PRESSURE WILL DOMINATE OVER THE WEEKEND. RADAR SHOWED THE BAND OF SHOWERS AND THUNDERSTORMS AHEAD OF THE COLD FRONT EXITING THE EAST MIDLANDS EARLY THIS MORNING. LEANED TOWARD THE HIGHER TEMPERATURE GUIDANCE TODAY BECAUSE OF A RELATIVELY WARM START. THE TROUGH WILL BEGIN TRACKING AWAY FROM THE AREA FRIDAY. CANADIAN HIGH PRESSURE WILL DOMINATE EARLY IN THE PERIOD.
HAVE BUMPED THE LOWS TONIGHT DOWN ABOUT A DEGREE TO ACCOUNT FOR THIS COOLING BUT WITH DEW POINTS STILL IN THE MID 40S. DO NOT EXPECT THE LOWS TO GET MUCH LOWER THAN PREVIOUSLY FORECAST. LN /ISSUED 918 PM CDT WED APR 6 2016/ THE FINAL LINE OF SHOWERS AND THUNDERSTORMS ARE EXITING JACKSON AND DEKALB COUNTIES AS OF 02Z ALONG A WEAKLY DEFINED WARM FRONT. THE COLD FRONT IS PROBABLY NEAR THE ALABAMA/MISSISSIPPI BORDER BUT THAT IS ALSO DIFFICULT TO PINPOINT AS THE ONLY DIFFERENCE IS A SLIGHT DECREASE IN DEW POINTS BEHIND IT AND DIMINISHING WINDS. WITH TEMPS STILL IN THE LOWER 50S.
411 AM EDT THU APR 7 2016 AVIATION SECTION UPDATED AN UPPER TROUGH OVER THE EASTERN U.
454 AM EDT THU APR 7 2016 WIDESPREAD SHOWERS WILL MOVE ACROSS CENTRAL PA THIS MORNING WITH THE HEAVIEST RAIN FOCUSED OVER THE LOWER SUSQUEHANNA VALLEY. AN ANOMALOUS UPPER LEVEL TROUGH WILL GRIP THE REGION THROUGH THE FIRST HALF OF THE WEEKEND AND BRING UNSEASONABLY COLD TEMPERATURES STRONG GUSTY WINDS AND THE POTENTIAL FOR ACCUMULATING LATE-SEASON SNOW.
HI RES GUIDANCE STILL SHOWS THE POTENTIAL FOR ANOTHER 2 TO 3 INCHES OVERNIGHT FOR THE HIGH TERRAIN. EXPECT LINGERING PRECIP TO POSSIBLY MIX WITH OR CHANGE OVER TO FREEZING DRIZZLE AROUND DAYBREAK. OTHERWISE THE REGIONS WEATHER IS BEING DOMINATED BY A DEEP COLD UPPER TROUGH LOCKED OVER THE AREA. HAVE THE HIGHEST POPS ON FRIDAY WITH THE ALBERTA CLIPPER SYSTEM MOVING THROUGH AND KEPT THE HIGHEST POPS AND QPF IN NORTH TO NORTHEAST WIND LAKE EFFECT SNOWBELTS ALONG LAKE SUPERIOR. GFS AND ECMWF SHOW A 500 MB TROUGH OVER THE NORTHERN PLAINS 12Z SUN. THIS TROUGH MOVES INTO THE UPPER GREAT LAKES SUN NIGHT INTO MON AND LINGERS INTO MON NIGHT AS COLDER AIR ALOFT AT 850 MB MOVES IN.
A SERIES OF PACIFIC STORM SYSTEMS WILL MOVE INTO THE REGION BEGINNING TODAY BRINGING COOLER TEMPERATURES AND INCREASING CHANCES FOR RAIN AND MOUNTAIN SNOW TO MUCH OF THE SOUTHERN GREAT BASIN AND MOJAVE DESERT. SATELLITE IMAGERY SHOWS LOW PRESSURE SPINNING OFF THE COAST CONTINUING ITS APPROACH TOWARDS THE SOUTHWEST.
/ISSUED 359 AM CDT THU APR 7 2016/ EARLY MORNING SURFACE ANALYSIS SHOWED THE COLD FRONT THAT MOVED ACROSS THE REGION YESTERDAY HAS FINALLY PUSHED INTO THE OFFSHORE WATERS. AN UPPER DISTURBANCE DROPPING SOUTH OUT OF CANADA EARLY THIS MORNING ON WATER VAPOR IMAGERY WILL HELP PUSH THE CENTRAL PLAINS COLD FRONT TOWARDS THE REGION TODAY.
THEREAFTER A POTENT SHORT WAVE TROUGH MOVING INTO THE SOUTHEASTERN STATES WILL DRIVE A COLD FRONT SOUTH THROUGH THE FORECAST AREA LATER TONIGHT AND EARLY THURSDAY MORNING. SOME ADDITIONAL MVFR CIGS/VSBYS MAY AFFECT KTPA/KPIE/KLAL/KSRQ BETWEEN 08-13Z AS A COLD FRONT MOVES SOUTH THROUGH THE REGION. A WEAK COLD FRONT APPROACHING FROM THE NORTHWEST WILL MOVE SOUTH THROUGH COASTAL WATERS LATER TONIGHT AND THURSDAY MORNING. A SECONDARY COLD FRONT WILL MOVE SOUTH THROUGH THE WATERS FRIDAY NIGHT.
PREFRONTAL TROUGH STARTING TO SHIFT WINDS NORTHERLY ACROSS THE OKLAHOMA PANHANDLE. AND A COLD FRONT CURRENTLY ACROSS NORTHERN KANSAS IS EXPECTED TO MOVE THROUGH THE PANHANDLES LATER THIS MORNING. UPPER LEVEL LOW SPINNING OFF THE BAJA COAST WILL SEND UP SOME A LITTLE MOISTURE IN THE FORM OF INCREASING HIGH CLOUDS THIS AFTERNOON AND EVENING. THIS LOW IS EXPECTED TO BECOME MORE OF AN OPEN WAVE BY FRIDAY AND SHIFT UPPER LEVEL FLOW MORE ZONAL ACROSS THE PANHANDLES.
THE FRONTAL BOUNDARY HAS STALLED ALONG THE COAST AND HIGH BOUNDARY LAYER MOISTURE REMAINS OVER THE COASTAL BEND WITH DEWPOINT TEMPERATURES IN THE LOWER TO MID 60S. CIRRUS SHIELD WILL LINGER OVER THE REGION TODAY AS THE UPPER LEVEL RIDGE FROM THE SOUTHERN ROCKIES INTO MEXICO MOVES TO THE EAST.
338 AM MDT THU APR 7 2016 LITTLE CHANGE FROM YESTERDAY WITH PLENTY OF SUNNY SKIES IN THE PICTURE AS THE RIDGE OF HIGH PRESSURE CONTINUES TO INFLUENCE OUR WEATHER. AN AREA OF LOW PRESSURE OVER THE PACIFIC IS THE CULPRIT BEHIND THIS INCREASED MOISTURE BUT AS THE MOISTURE MOVES INTO OUR AREA. THE FORCING MECHANISM LOOKS TO BE MORE AN OPEN WAVE/TROUGH THAN ANY LOW PRESSURE CENTER. THIS SYSTEM IS ALSO QUITE WARM SO SOME SNOW IS POSSIBLE AT THE HIGHEST ELEVATIONS BUT DO NOT ANTICIPATE MUCH IN THE WAY OF ACCUMULATION.
324 AM EDT THU APR 7 2016 PERIODIC RAIN AND SNOW SHOWERS WILL PERSIST INTO THE WEEKEND WITH THE AREA UNDER UPPER LOW PRESSURE. SHOWER COVERAGE WILL EASE THIS MORNING AS A COLD FRONT EXTENDING FROM GREAT LAKES LOW PRESSURE COMPLETES PASSAGE ACROSS THE UPPER OHIO VALLEY REGION. EASTERN CONUS UPPER TROUGH WILL QUICKLY ESCALATE POPS AGAIN. WITH A COUPLE INCHES ANTICIPATED ON THE HIGHER RIDGE TOPS. THE AFOREMENTIONED UPPER TROUGH IS FORECAST TO PERSIST ACROSS THE REGION THROUGH THE WEEKEND.
An active short term period will continue with some chances for rain as well as for freezing temperatures. Those showers will move east by mid day or so and another wave will dive through the upper level trough to the west of the area.
FREEZING TEMPERATURES EXPECTED IN THE NORTHERN-MOST COUNTIES LATEST WV IMAGERY SHOWS A COUPLE OF UPPER LEVEL LOWS LIFTING OUT OF OHIO AND THE GREAT LAKES REGION WITH THE COLD FRONTAL ZONE/ENHANCED MOISTURE/ PUSHING EAST OUT OF KENTUCKY. THIS WAVE WILL HELP DEEPEN THE TROF AND SHIFT THE TROF AXIS FURTHER SOUTH. AN IMPRESSIVE LONGWAVE TROUGH WILL STILL BE IN PLACE OVER THE EASTERN PART OF THE CONTINENT AT THE START OF THE PERIOD. THE GREATEST CHANCE OF THIS IS OVER OUR EASTERN COUNTIES AND AT THE HIGHER ELEVATIONS IN THE SOUTHEAST.
620 AM EDT THU APR 7 2016 LOW PRESSURE JUST EAST OF LAKE HURON WITH A COLD FRONT TRAILING SOUTHWARD ACROSS EASTERN OHIO WILL MOVE EASTWARD THROUGH THE MORNING. ANOTHER AREA OF LOW PRESSURE WILL DIVE INTO THE CENTRAL GREAT LAKES ON FRIDAY.
HIGH PRESSURE CENTER CURRENTLY OVER WESTERN WYOMING THIS AFTERNOON. WILL KEEP THE HIGH WIND WARNING GOING THROUGH THE AFTERNOON. WINDS WILL BE ON THE DECREASE TONIGHT INTO THURSDAY AS THE UPPER LEVEL RIDGE AXIS APPROACHES. BEAUTIFUL DAY ON TAP FOR FRIDAY AS GFS 700MB TEMPERATURES CLIMB ABOVE FREEZING ACROSS THE CWA.
309 AM EDT THU APR 7 2016 RAIN SHOWERS WITH COLD FRONT THIS MORNING.
516 AM EDT THU APR 7 2016 PERIODIC RAIN AND SNOW SHOWERS WILL PERSIST INTO THE WEEKEND WITH THE AREA UNDER UPPER LOW PRESSURE. SHOWER COVERAGE WILL EASE THIS MORNING AS A COLD FRONT EXTENDING FROM GREAT LAKES LOW PRESSURE COMPLETES PASSAGE ACROSS THE UPPER OHIO VALLEY REGION. EASTERN CONUS UPPER TROUGH WILL QUICKLY ESCALATE POPS AGAIN. WITH A COUPLE INCHES ANTICIPATED ON THE HIGHER RIDGE TOPS. THE AFOREMENTIONED UPPER TROUGH IS FORECAST TO PERSIST ACROSS THE REGION THROUGH THE WEEKEND.
651 AM EDT THU APR 7 2016 RAIN SHOWERS WITH COLD FRONT THIS MORNING.
/ISSUED 933 PM CDT WED APR 6 2016/ COLD FRONT HAS PUSHED THROUGH THE REGION. AT 3 PM CDT SURFACE ANALYSIS EXTENDS A COLD FRONT FROM NORTHERN INDIANA SOUTHWESTWARD THROUGH THE MISSOURI BOOTHEEL AND INTO SOUTH CENTRAL ARKANSAS. H5 ANALYSIS EXTENDS A TROUGH AXIS FROM NORTHERN WISCONSIN SOUTHWARD THROUGH NORTHERN LOUISIANA. A REINFORCING COLD FRONT WILL MOVE THROUGH LATE ON THURSDAY AS A SUBTLE WAVE MOVES THROUGH THE UPPER ROUGH AXIS ALOFT.
222 AM EDT THU APR 7 2016 SHOWERS AND THUNDERSTORMS WILL OCCUR ALONG A COLD FRONT EARLY THIS MORNING. COLD HIGH PRESSURE WILL DOMINATE OVER THE WEEKEND. SHOWERS AND THUNDERSTORMS WERE IN THE FORECAST AREA EARLY THIS MORNING AHEAD OF THE COLD FRONT. THE HIGH-RESOLUTION MODELS AND RADAR TRENDS SUPPORT THE SHOWERS EXITING THE FORECAST AREA EARLY THIS MORNING. LEANED TOWARD THE HIGHER TEMPERATURE GUIDANCE TODAY BECAUSE OF A RELATIVELY WARM START. THE TROUGH WILL BEGIN TRACKING AWAY FROM THE AREA FRIDAY. CANADIAN HIGH PRESSURE WILL DOMINATE EARLY IN THE PERIOD.
AND ONLY SLOWLY DECREASE INTO THE LOWER 40S ACROSS NORTHERN LOUISIANA. REINFORCEMENT OF CANADIAN HIGH PRESSURE WILL SEND ANOTHER SURGE OF COOL AND DRY AIR ACROSS THE AREA EARLY FRIDAY MORNING.
ALTHOUGH SOME INCREASED MIXING IN THE LOWER LEVELS ASSOCIATED WITH THE FRONTAL PASSAGE HAS LIMITED MUCH IN THE WAY OF MORE WIDESPREAD DEVELOPMENT. THE BRUNT OF THE COOLER AIR LOOKS TO BE DISPLACED ABOUT 6-12 HRS BEHIND THIS NEXT FRONTAL PASSAGE. WITH A STRONG DOME OF 1026-1028MB HIGH PRESSURE AT THE SFC BUILDING SWD ACROSS THE GREAT LAKES/OH VALLEY STATES IN THE WAKE OF THE FRONTAL PASSAGE. NEAR FREEZING TEMPS LOOK POSSIBLE BY SAT MORNING. AS ANOTHER COLD FRONT APPROACHES FROM THE NW.
THE RISK OF HAIL ACROSS THE REST OF THE FORECAST AREA HAS DECREASED DUE TO THE STABILIZATION OF THE LOWER ATMOSPHERE. THE SURFACE COLD FRONT WAS ANALYZED ACROSS THE NORTHWEST CORNER OF THE STATE AND WILL CONTINUE MOVING EAST. PREFRONTAL TROUGH WILL CONTINUE MOVING EAST AND WILL PROVIDE A FOCUS FOR THE LINE OF SHOWERS AND THUNDERSTORMS WITH GREATEST SEVERE WEATHER POTENTIAL IN THE SHORT TERM.
641 AM EDT THU APR 7 2016 A SLOW MOVING COLD FRONT, WILL BRING RAIN TO THE REGION TODAY.
BUT A COLD FRONT WILL DROP INTO THE DELTA BY EARLY EVENING. THIS DRY COLD FRONT WILL MOVE SOUTHEAST ACROSS THE AREA THROUGH THE EVENING INTO THE OVERNIGHT HOURS. LOOKS LIKE A NICE WEEKEND ON TAP FOR THE ARKLAMISS WITH HIGH PRESSURE RIDGING ONCE AGAIN RE-ESTABLISH ITSELF OVER THE REGION ON FRIDAY. COOLER NORTHERLY FLOW WILL PREVAIL ON FRIDAY WITH HIGH TEMPERATURES RANGING FROM THE MID 60S IN THE NORTH TO MID 70S IN THE SOUTH. A COOL NIGHT IS ON TAP FOR FRIDAY NIGHT WITH LOWS FALLING BACK INTO THE LOW/MID 40S ACROSS THE AREA.
1101 PM PDT WED APR 6 2016 Amplifying high pressure over the region will bring a rapid warming trend to the Inland Northwest. A weak cold front will bring cooler temperatures and the chance for mountain showers for the weekend. A ridge of high pressure will amplify over Eastern Washington and Northern Idaho and allow for unseasonably warm temperatures temperatures that peak on Friday.
ANOTHER COLD FRONT WILL ENTER THE REGION DURING THE AFTERNOON. /ISSUED 1005 PM CDT WED APR 6 2016/ COLD FRONT HAS NOW JUST CLEARED OUR FAR SE PARISHES IN N CNTRL LA WITH COOLER AND DRIER AIR FILTERING INTO THE REGION THIS EVENING.
HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE WESTERN U. PRECIP DUE TO DRY AIR IN THE LOW LEVELS AND A LACK OF ANY SIGNIFICANT LIFTING. A HIGH PRESSURE RIDGE IS BUILDING TO THE WEST AND CENTRAL AND SOUTHWEST MONTANA ARE UNDERNEATH BRISK NORTHWEST FLOW ALOFT. THE HIGH PRESSURE RIDGE WILL BE OVER THE ROCKIES FRIDAY AND TEMPERATURES WILL BE TRENDING UPWARD.
MUCH OF THIS IS BEING SUSTAINED BY THE LEFT EXIT REGION OF A 140KT JET AT 300MB AND SURFACE CONVERGENCE ALONG A COLD FRONT. GENERALLY ACROSS THE HIGHWAY 83 CORRIDOR. WHEN COUPLED WITH LOW FREEZING LEVELS.
AS FOR HIGHS READINGS WILL DROP BACK INTO THE LOWER TO MID 60S OVER NERN CO.
213 AM EDT THU APR 7 2016 RAIN SHOWERS WITH COLD FRONT THIS MORNING.
Cooler air will filter into the region with H85 temperatures down a little from yesterday with values ranging a little below 10C across central Kansas to near 15C in extreme southwest Kansas. Look for highs only up into the mid to upper 60s across central Kansas to the lower 70s(F) closer to the Oklahoma border.
Weak upper ridging and returning southerly winds will allow for a quick warm-up this afternoon. A weak cold front will slowly move across the area tonight before washing out during the day Friday. Meanwhile, an upper trough will move onshore into S CA and weaken late this week.
200 AM EDT THU APR 7 2016 LOW PRESSURE OVER LAKE HURON WILL MOVE EAST ACROSS ONTARIO EARLY THIS MORNING WITH A COLD FRONT CROSSING THE REGION BY SUNRISE. THE LOW WILL DRIFT INTO QUEBEC WITH A SERIES OF TROUGHS ROTATING ACROSS THE GREAT LAKES INTO THE WEEKEND. CORE OF THE LOW LEVEL JET IS OVERHEAD NOW AND SHOULD PROGRESS UP THE LAKESHORE TOWARD BUFFALO FOR THE REMAINDER OF THE NIGHT.
453 AM CDT THU APR 7 2016 WEAK HIGH PRESSURE AROUND 1016MB HAS FAIR SKIES OVERHEAD WITH QUITE A RANGE OF TEMPERATURES. BUT OUR HIGHS WILL END UP WARMER TODAY THAN YESTERDAY AND WELL ABOVE AVERAGE WITH A SLIGHT BACKING IN THE WINDS TO W/SW. REINFORCING HIGH PRESSURE IS ON THE WAY AND WILL SPILL IN FROM THE NORTH EARLY TOMORROW WITH FRESH COOL AIR ADVECTION AS A 1024MB HIGH ARRIVES ON NORTHERLY WINDS TO WRAP UP THE WORK WEEK.