Aikyam-Lab/Synoptic-Bench huggingface dataset:
WEAK HIGH PRESSURE EXTENDS FROM THE OHIO VALLEY INTO THE SOUTHERN ROCKIES WITH LOW PRESSURE ALONG THE TX GULF COAST. BY THE WEEKEND NW FLOW ALOFT WILL SETUP OVER THE PLAINS AS RIDGING STRENGTHENS OVER THE WESTERN CONUS. THE PATTERN WILL REMAIN UNCHANGED TO START THE WORK WEEK WITH NW FLOW OVER THE PLAINS AND RIDGING OVER THE ROCKIES. THE UNSEASONABLY WARM TEMPS WILL CONTINUE FOR BOTH MON AND TUE AND AT THIS POINT FEEL THAT MON MAYBE SLIGHTLY WARMER DUE TO INCREASED DOWNSLOPE.
648 PM EST THU JAN 22 2015 A RIDGE OF HIGH PRESSURE WILL LINGER ACROSS NORTHERN NEW ENGLAND TONIGHT. A WEAK WARM FRONT WILL CROSS THE REGION ON FRIDAY. LOW PRESSURE LOOKS TO DEVELOP NEAR THE DELMARVA FRIDAY NIGHT THEN RACE NORTHEASTWARD.
AN AREA OF LOW PRESSURE ALONG THE NORTHERN GULF COAST WILL MOVE EAST NORTHEAST OVERNIGHT AND INTO THE FLORIDA PANHANDLE ON FRIDAY. /ISSUED 410 PM EST THU JAN 22 2015/ LOW PRESSURE IS DEVELOPING, AS EXPECTED, OVER THE WESTERN GULF OF MEXICO. THIS LOW WILL TRACK EAST NORTHEAST, TOWARDS THE FLORIDA PANHANDLE TONIGHT. AN ASSOCIATED WARM FRONT WILL BE WELL TO THE NORTH OF SOUTH FLORIDA AS IT DOES. AS THE ASSOCIATED COLD FRONT APPROACHES FRIDAY NIGHT, SHOWERS, AND POSSIBLY SOME THUNDERSTORMS, WILL BEGIN TO MOVE INTO THE AREA FROM THE GULF.
AN UPPER LEVEL TROUGH CURRENTLY OVER FAR WESTERN TEXAS MOVES ACROSS TEXAS TONIGHT INTO FRIDAY. EXPECT BOUNDARY LAYER TEMPERATURES TO BE ABOVE FREEZING AND HAVE GONE WITH A RAIN/SNOW MIX AND NO SNOW ACCUMULATIONS. ALTHOUGH GROUND TEMPERATURES WILL REMAIN ABOVE FREEZING KEEPING THEM SLIGHT. THE PRECIPITATION ENDS FROM WEST TO EAST LATE FRIDAY MORNING TO MIDDAY AS THE TROUGH AXIS MOVES ACROSS OUR AREA.
HIGH PRESSURE RIDGING WILL BEGIN TO BUILD OVER THE WESTERN U.
LOWS WILL BOTTOM OUT IN THE LOW TO MID 20S ACROSS THE REGION. BROAD STRETCHING OF MID-LEVEL TROF OVER THE GREAT LAKES BETWEEN THE SOUTHERN STREAM STORM AND THE NEXT CLIPPER MOVING OUT THE CANADIAN ROCKIES. AS THE HIGH PRESSURE WEAKENS. EXPECT TO SEE THE LOW LEVEL INVERSION ERODE DURING THE EARLY MORNING HOURS FRIDAY.
MVFR CONDITIONS ARE EXPECTED TO PREVAIL OVERNIGHT ALONG WITH ADDITIONAL -RA AS AN UPPER LEVEL LOW SWINGS ACROSS TX. CONDITIONS ARE FCST TO IMPROVE AROUND MID MORNING FRI AS THE UPPER LOW EXITS THE REGION AND DRIER AIR BEGINS TO FILTER INTO S TX. COLD FRONT HAS PUSHED OFF THE MIDDLE TEXAS COAST WITH A COLD AIRMASS ALREADY SETTLED INTO THE REGION WITH COLD AIR ADVECTION CONTINUING THROUGH THE NIGHT AS BREEZY/WINDY NORTHERLY WINDS PERSIST. ADDITIONAL RAIN /MAINLY LIGHT/ IS PROG TO DEVELOP OVERNIGHT AS MUCH OF THE CWA BECOMES PLACED IN THE RRQ OF A 110KT H25 JET STREAK AND A MID LEVEL TROUGH AXIS APPROACHES THE REGION. RAIN CHANCES WILL DECREASE EARLY FRIDAY AS MID LEVEL TROUGH BEGINS TO SHIFT EAST AND LLVL MOISTURE DECREASES.
708 PM EST THU JAN 22 2015 HIGH PRESSURE WILL BUILD INTO THE AREA THIS EVENING AND GIVE US A GENERALLY CLEAR AND COLD NIGHT FOLLOWED BY SUNSHINE FOR FRIDAY.
FARTHER INLAND, WEST AND SOUTH OF LAKE OKEECHOBEE, TEMPERATURES ARE FORECAST TO DIP INTO THE LOWER 60S BY DAYBREAK FRIDAY. AN AREA OF LOW PRESSURE ALONG THE NORTHERN GULF COAST WILL MOVE EAST NORTHEAST OVERNIGHT AND INTO THE FLORIDA PANHANDLE ON FRIDAY. /ISSUED 410 PM EST THU JAN 22 2015/ LOW PRESSURE IS DEVELOPING, AS EXPECTED, OVER THE WESTERN GULF OF MEXICO. THIS LOW WILL TRACK EAST NORTHEAST, TOWARDS THE FLORIDA PANHANDLE TONIGHT. AN ASSOCIATED WARM FRONT WILL BE WELL TO THE NORTH OF SOUTH FLORIDA AS IT DOES. AS THE ASSOCIATED COLD FRONT APPROACHES FRIDAY NIGHT, SHOWERS, AND POSSIBLY SOME THUNDERSTORMS, WILL BEGIN TO MOVE INTO THE AREA FROM THE GULF.
924 PM EST THU JAN 22 2015 HIGH PRESSURE WILL EXPAND ACROSS THE LOWER GREAT LAKES TONIGHT THEN BUILD TO NEW ENGLAND ON FRIDAY.
522 PM CST THU JAN 22 2015 QUIET AND MILD WEATHER IN THE SHORT TERM AS HIGH PRESSURE CONTINUES TO MOVE TO THE EAST WITH SOUTH SOUTHWEST FLOW DEVELOPING AHEAD OF THE NEXT TROUGH THAT MOVES IN FRIDAY.
548 PM CST THU JAN 22 2015 MAIN FORECAST CHALLENGES FOR THIS AFTERNOON CENTER ON THE POTENTIAL FOR FREEZING RAIN AND SLEET LATE TONIGHT AND FRIDAY MORNING. THE PRECIPITATION WILL FALL INTO THE WARMER AIR ALOFT RESULTING IN FREEZING RAIN OR SLEET AT THE SURFACE. HAVE OPTED FOR A WINTER WEATHER ADVISORY FOR FREEZING RAIN AND SLEET FROM KOOCHICHING AND ITASCA SOUTHEAST TO DOUGLAS AND BAYFIELD, WI. TEMPERATURES WILL REMAIN RELATIVELY WARM OVERNIGHT WITH MINS IN THE UPPER 20S NORTHWEST TO THE LOW 20S SOUTHEAST. LEAVING A MIX OF DRIZZLE AND FREEZING DRIZZLE BEHIND IN NORTHEAST MINNESOTA. TRENDED HIGH TEMPERATURES A FEW DEGREES COOLER THAN PREVIOUS FORECAST WITH MAXES IN THE LOW TO MIDDLE 30S.
PARTS OF SOUTH CENTRAL KANSAS WILL BE SLIGHTLY WARMER FROM 20 TO 24 DEGREES. FOR FRIDAY, WEST WINDS AROUND 8 MPH BECOME NORTHWESTERLY LATE AT 10 TO 15 MPH AS A TROUGH OF LOW PRESSURE MOVES ACROSS KANSAS. HIGHS WILL BE AROUND 50 WITH SLIGHTLY COOLER TEMPS ACROSS FAR WESTERN KANSAS. MEDIUM RANGE MODELS INDICATE A LARGE SCALE UPPER LEVEL TROUGH OF LOW PRESSURE TRANSITIONING EASTWARD ACROSS THE EASTERN CONUS GIVING WAY TO A NORTHWESTERLY FLOW ALOFT ACROSS THE WESTERN HIGH PLAINS EARLY IN THE PERIOD. MEANWHILE, UPPER LEVEL RIDGING OFF THE COAST OF THE PACIFIC NORTHWEST IS EXPECTED TO PUSH ASHORE THIS WEEKEND.
A TROUGH OF LOW PRESSURE IS CURRENTLY WORKING ACROSS WEST TEXAS WITH AN ABUNDANCE OF ENERGY RIDING THROUGH OUR AREA AT THE MOMENT. RAIN SHOULD EXIT THE ENTIRE AREA BY FRIDAY NIGHT WITH HIGH PRESSURE BUILDING BACK INTO THE AREA.
THERMAL RIDGE WILL BUILD INTO THE STATE WITH TEMPERATURES REBOUNDING FROM TODAYS MUTED HIGHS.
552 PM CST Thu Jan 22 2015 Area of high pressure extends from northeast Kansas into west central Illinois early this afternoon. The high will be settling southward across the CWA this evening, but forecast soundings show a tight inversion around 2000 feet hanging in place. With that area keeping the clouds longer, the temperatures will remain more elevated in eastern Illinois, but went with lows in the lower 20s across the northwest CWA where the clouds should break up sooner. Any of these waves have at least the potential for a little light snow or light rain, depending on the low-level thermal profiles, but dry conditions are expected more often than not.
CHATTANOOGA AIRPORT, TN 66 72 51 75 / 80 80 10 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 65 71 48 70 / 80 80 10 0 OAK RIDGE, TN 64 71 46 71 / 80 80 10 0 TRI CITIES AIRPORT, TN 61 72 44 67 / 60 80 10 0.
HIGH PRESSURE WILL WORK INTO THE AREA LATER TODAY PROVIDING DRY CONDITIONS FOR MOST OF THE WEEKEND.
NORTHERLY FLOW ALOFT WITH A WEAK RIDGE ACROSS THE NORTHERN ROCKIES AND A STRONG S/WV MOVING SOUTH TOWARDS NORTHERN MINNESOTA. HIGH PRESSURE CONTINUES SOUTH AND EAST FRIDAY ALLOWING FOR RETURN FLOW/WAA INTO THE REGION.
SPC HAS PLACED OUR THE WESTERN TWO THIRDS OF THE CWA IN A SLIGHT RISK FOR SEVERE WEATHER WITH THE LOWER VALLEY AND COASTAL REACHES IN A MARGINAL RISK.
WIDESPREAD LIGHT RAIN AND SNOW OVER WESTERN NEBRASKA YESTERDAY HAS MOISTENED UP BOUNDARY LAYER SOME AND WILL AFFECT THE HIGH AND LOW TEMPERATURE FORECAST SOMEWHAT.
419 AM EDT FRI APR 10 2015 SHOWERS AND THUNDERSTORMS THROUGH THIS MORNING WITH THE PASSAGE OF A COLD FRONT. BEFORE HIGH PRESSURE MOVES IN FOR THE WEEKEND. BUT WILL END QUICKLY AS DRIER AND COOLER AIR FILTERS IN FROM THE WEST.
314 AM CDT FRI APR 10 2015 A COUPLE OF UPPER LEVEL LOWS WERE AFFECTING THE FORECAST AREA AT 07Z. THEIR ASSOCIATED TROFS WERE ROTATING THROUGH THE AREA AS WELL AND DRIVING SOME PCPN. THE UPPER LOW/TROF IN NW MN IS PROGGED TO MOVE TO SE MN BY 18Z TODAY. BUT DO HAVE SOME POPS FROM 20Z TO 22Z OVER SOUTHERN SAWYER COUNTY WHERE ENOUGH FORCING FROM THE PASSING UPPER TROF MAY GENERATE A FEW SHOWERS. HIGH PRESSURE WILL BE BUILDING ACROSS THE REST OF THE FORECAST AREA.
AT THE SURFACE, HIGH PRESSURE WILL SHIFT OFF TO THE EAST THROUGH THE DAY. LEE HIGH PLAINS TROUGHING WILL STRENGTHEN BY THIS EVENING IN RESPONSE TO THE ORTHOGONAL FLOW WRT THE ROCKIES.
THIS EVENING THROUGH FRIDAY NIGHT UPPER LEVEL ANALYSIS HAS CLOSED LOW PUSHING INTO IOWA. WITH WEAK RIDGING OVER THE WESTERN CONUS. HIGH PRESSURE RESIDES OVER THE CENTRAL ROCKIES. UPPER LEVEL RIDGE CROSSES THE NORTHERN PLAINS EARLY.
149 AM EDT FRI APR 10 2015 LOW PRESSURE WILL MOVE THROUGH THE CENTRAL GREAT LAKES TONIGHT AND DRAG A COLD FRONT THROUGH THE AREA. A SECONDARY COLD FRONT WILL DROP ACROSS THE AREA FRIDAY EVENING.
557 AM EDT FRI APR 10 2015 HIGH PRESSURE WILL BUILD INTO THE AREA BEHIND THE FRONT TODAY. TIGHTENING PRESSURE GRADIENT AS HIGH PRESSURE BUILDS IN TODAY WILL PRODUCE SOME WIND GUSTS OVER 30 MPH. SHARP H5 TROF DIGS INTO THE GREAT LAKES TONIGHT BRINGING WITH IT A SECONDARY TROF. ALONG THIS TROF THERE WILL BE A SLIGHT CHANCE OF RAIN SHOWERS IN THE EXTREME NORTHERN COUNTIES FOR THE FIRST HALF OF TONIGHT. THE CORE OF THE HIGH PRESSURE BUILDS IN FOR THE LATER PART OF TONIGHT.
However, a secondary cold front will slide through the region this afternoon, but will not see any clouds or precipitation with it. So cooler, less humid and mostly sunny skies to prevail today with northwest winds remaining gusty to near 25 mph at times.
ALTHOUGH A FEW SITES HAVE SLIPPED TO BELOW FREEZING. AMPLE SUNSHINE AND A LIGHT WESTERLY WIND ALONG WITH WARMING TEMPERATURES ALOFT WILL MAKE FOR A VERY NICE AND NOTICEABLY WARMER DAY WITH HIGHS IN THE MID TO UPPER 60S. NORMAL HIGHS FOR TODAY GENERALLY RANGE FROM THE LOWER TO MID 60S.
325 AM CDT Fri Apr 10 2015 (Today and Tonight) Cooler temperatures and possible rain highlight the forecast for the next 24 hours. A cold front has pushed south of our Interstate 10 corridor, and cooler air has moved into West Central Texas. Highs today will be much cooler that the past couple days, with numbers likely ranging from around 70, north of the Interstate 20 corridor, to the mid 70s along the Interstate 10 corridor.
359 AM CDT Fri Apr 10 2015 Cold front currently near the Pecos River will continue to shift south into Mexico today.
305 AM CDT Fri Apr 10 2015 Much cooler and less humid conditions are expected across central and southeast Illinois today in the wake of Thursday evening's cold front. While high temperatures should average at least 15 degrees cooler than yesterday, they will still be near normal levels for early April. Breezy westerly winds will persist for much of the day, with a gradual decrease in speed toward evening as high pressure begins to build into the area. Quiet start to the weekend on tap as high pressure drifts through the Midwest.
655 AM EDT FRI APR 10 2015 HIGH PRESSURE WILL BUILD INTO THE AREA BEHIND THE FRONT TODAY. TIGHTENING PRESSURE GRADIENT AS HIGH PRESSURE BUILDS IN TODAY WILL PRODUCE SOME WIND GUSTS OVER 30 MPH. SHARP H5 TROF DIGS INTO THE GREAT LAKES TONIGHT BRINGING WITH IT A SECONDARY TROF. ALONG THIS TROF THERE WILL BE A SLIGHT CHANCE OF RAIN SHOWERS IN THE EXTREME NORTHERN COUNTIES FOR THE FIRST HALF OF TONIGHT. THE CORE OF THE HIGH PRESSURE BUILDS IN FOR THE LATER PART OF TONIGHT.
341 AM CDT FRI APR 10 2015 HIGH PRESSURE DRIFTING SLOW THROUGH THE REGION WILL ENSURE A COOLER AND LESS HUMID START TO THE WEEKEND. ESP SUN AS WINDS TURN SOUTHERLY OD THE WEST SIDE OF THE HIGH. MODELS DO TEND TO AGREE THAT ANOTHER COLD FRONT WILL MOVE IN TO START THE WORK WEEK.
359 AM EDT FRI APR 10 2015 MAINLY DRY AND WINDY CONDITIONS ARE EXPECTED TODAY BEHIND A STRONG COLD FRONT.
326 AM EDT FRI APR 10 2015 A WARM FRONT WILL LIFT NORTH INTO THE AREA TODAY WHILE LOW PRESSURE APPROACHES FROM THE WEST. A TRAILING COLD FRONT WILL MOVE THROUGH TONIGHT. HIGH PRESSURE WILL THEN BUILD EASTWARD AND INTO OUR REGION THROUGH THE WEEKEND.
TEMPERATURES ARE EXPECTED TO BE SLIGHTLY COOLER IN THE EAST TODAY BUT A LITTLE WARMER IN THE WEST. CLEAR TO PARTLY CLOUDY SKIES TONIGHT WITH TEMPERATURES HOLDING ABOVE FREEZING MOST AREAS.
WEAK RETURN FLOW WILL DEVELOP TONIGHT WITH WEAK TO MODEST ELEVATED MOISTURE TRANSPORT ACROSS THE HIGH PLAINS.
COLD FRONT LIKELY WON'T EXIT THE MID STATE UNTIL AFTER 12Z, WITH PRECIPITATION ENDING FROM WEST TO EAST DURING THE MORNING, PERHAPS SOME LINGERING SHOWERS ALONG THE CUMBERLAND PLATEAU INTO THE AFTERNOON. EXPECT DRY, COOLER WEATHER THIS WEEKEND AS HIGH PRESSURE MOVES ACROSS THE REGION.
BASED ON SFC TEMPS AND THE CORE OF THE COLDEST AIR IN THE LOWEST 8K IN THE ATMOSPHERIC COLUMN.
FRIDAY NIGHT THROUGH THURSDAY NIGHT FLATTENED RIDGE PATTERN WILL CONTINUE DURING THE EARLY PORTION OF THE FORECAST PERIOD.
639 AM EDT FRI APR 10 2015 SHOWERS AND THUNDERSTORMS THROUGH THIS MORNING WITH THE PASSAGE OF A COLD FRONT. BEFORE HIGH PRESSURE MOVES IN FOR THE WEEKEND. BUT WILL END QUICKLY AS DRIER AND COOLER AIR FILTERS IN FROM THE WEST.
SURFACE WINDS SOUTHERLY AHEAD OF A COLD FRONT THAT EXTENDED FROM NEAR KTXK TO KGGG AND KPSN WITH WEST TO NORTHWEST WINDS OF 6-12 KNOTS IN WAKE OF THE BOUNDARY.
HIGH PRESSURE OVER CALIFORNIA WILL LEAD TO SLIGHTLY WARMER TEMPERATURES ALONG WITH DRY WEATHER THROUGH THE WEEKEND.
146 AM EDT FRI APR 10 2015 CIRCULATION AROUND ATLANTIC HIGH PRESSURE WILL MAINTAIN A MOIST SOUTHWESTERLY FLOW ACROSS OUR REGION INTO FRIDAY.
LONG WAVE TROUGH CONTINUES TO PUSH THROUGH THE UPPER MS VALLEY WITH PRIMARY PV ANOMALY/SHORT WAVE DRIVING MUCH OF THE LARGER SCALE FORCING THROUGH THE GREAT LAKES AND INTO ONTARIO. WITH FORECAST SOUNDINGS AND RAW MODEL TEMP CONSENSUS SUPPORTING HIGHS CLOSER TO NAM RATHER THAN WARMER GFS MOS VALUES.
629 AM EDT FRI APR 10 2015 COLD FRONT WILL TRACK ACROSS THE AREA THIS MORNING WITH A SECONDARY SURGE OF COOLER AIR THIS EVENING.
538 AM EDT FRI APR 10 2015 MAINLY DRY AND WINDY CONDITIONS ARE EXPECTED TODAY BEHIND A STRONG COLD FRONT.
151 AM EDT FRI APR 10 2015 STRONG HIGH PRESSURE RIDGING SOUTHWEST INTO THE STATE FROM THE CANADIAN MARITIMES WILL CONTINUE TO KEEP MOIST AND COOL CONDITIONS OVER THE REGION THROUGH EARLY TODAY. LOW PRESSURE WILL MOVE THROUGH THE GREAT LAKES THIS MORNING. DRAGGING A COLD FRONT ACROSS PENNSYLVANIA TODAY.
850/700 MB THETA-E RIDGE AXIS ALSO ALONG INTERSTATE 25 THIS AFTERNOON.
MOSTLY CLEAR SKIES, LIGHT WINDS AND DEWPOINTS IN THE HIGH 20S TO LOWER 30S WILL RESULT IN LOWS IN THE LOWER TO MID 30S WITH AREAS OF FROST.
443 AM EDT FRI APR 10 2015 COLD FRONT WILL TRACK ACROSS THE AREA THIS MORNING WITH A SECONDARY SURGE OF COOLER AIR THIS EVENING.
318 AM EDT FRI APR 10 2015 THE LATEST SURFACE MAP FEATURES DEEP LOW PRESSURE WRAPPING INTO MICHIGAN. WITH A COLD FRONT ALIGNED SOUTH AND THEN SOUTHWEST. TWO DISTINCT SHORT WAVE TROUGHS ARE ROTATING THROUGH WITHIN THE NORTHERN STREAM. PLENTY OF CONVECTION HAS BEEN FIRING UP JUST AHEAD OF THE COLD FRONT. AS THE COLD FRONT PASSES THROUGH AND LIKELY CLEARS THE EASTERN END OF THE COMMONWEALTH BY NOON. HIGH PRESSURE WILL SETTLE IN ACROSS THE OHIO VALLEY TONIGHT. WITH CLEARING SKIES AND MUCH COOLER LOWS THAN WE HAVE BEEN SEEING OVER THE PAST SEVERAL DAYS.
00Z UPPER AIR PLOTS INDICATED THE RIGHT REAR QUADRANT OF THE UPPER LEVEL JET WAS LIKELY AIDING THIS RE-DEVELOPMENT OF STORMS AHEAD OF THE COLD FRONT. ALTHOUGH SOME STRAY SHOWERS AND/OR STORMS ARE CERTAINLY POSSIBLE IN ADVANCE OF THE PRE-FRONTAL TROUGH. CLEARING AND COOLER TONIGHT WITH NO SIGNIFICANT CHANGES MADE TO THE PREVIOUS GRIDS.
TODAY SHIFTING RIDGE AXIS OF ATLANTIC HIGH PRESSURE SOUTHWARD ACROSS THE REGION TODAY.
THE ACTIVITY HAS BEEN LESS ORGANIZED THAN EXPECTED AS CLUSTERS OF SHOWERS AND THUNDERSTORMS HAVE DEVELOPED WELL AHEAD OF THE COLD FRONT. AT 3 AM THE COLD FRONT WAS LOCATED JUST EAST OF MEMPHIS. WITH THE LOW LEVEL INFLOW DECREASING AND VEERING.
HOWEVER SOME OF THE HIGH RES MODELS SUGGEST AN ISOLATED THUNDERSTORM COULD FORM OVER THE EAST CENTRAL PLAINS OF COLORADO THIS EVENING AS ACTIVITY SHIFTS EASTWARD INTO NORTHWEST KANSAS. WITH AFTERNOON HUMIDITIES FALLING BELOW 15 PERCENT ACROSS SOME OF THE HIGHER VALLEYS. SHOULD SEE A NICE REBOUND IN TEMPERATURES FROM YESTERDAY WITH READINGS BACK IN THE 60S FOR THE LOWER ELEVATIONS TO AROUND 70 ACROSS PORTIONS OF THE SOUTHEAST PLAINS. LEE TROFFING TONIGHT SHOULD KEEP LOWS ON THE MORE MILD SIDE.
659 AM EDT FRI APR 10 2015 A WARM FRONT WILL LIFT NORTH INTO THE AREA TODAY WHILE LOW PRESSURE APPROACHES FROM THE WEST. A TRAILING COLD FRONT WILL MOVE THROUGH TONIGHT. HIGH PRESSURE WILL THEN BUILD EASTWARD AND INTO OUR REGION THROUGH THE WEEKEND.
322 AM EDT FRI APR 10 2015 STRONG HIGH PRESSURE RIDGING SOUTHWEST INTO THE STATE FROM THE CANADIAN MARITIMES WILL CONTINUE TO KEEP MOIST AND COOL CONDITIONS OVER THE REGION THROUGH EARLY TODAY. LOW PRESSURE WILL MOVE THROUGH THE GREAT LAKES THIS MORNING. DRAGGING A COLD FRONT ACROSS PENNSYLVANIA TODAY.
A strong cold front passes through Friday night bringing the next round of showers and breezy winds.
312 AM CDT FRI APR 10 2015 FLATTENING UA RIDGING WILL BE PROGRESSING OVERHEAD TODAY. A BACKDOOR COLD FRONT HAS PUSHED SOUTH ACROSS THE SOUTHERN PLAINS LATE LAST NIGHT AND HAS SINCE MOVED TO ACROSS THE DAVIS MOUNTAINS AND EDWARDS PLATEAU AREAS PER 07Z METARS. 75 INCHES /ESPECIALLY ACROSS THE SRN AND ERN ZONES/ ALL AID IN MOISTENING THE LOW LEVELS AS WELL AS PROMOTING A CHANCE OF PRECIP ACROSS PORTIONS OF THE THE SRN AND ERN ZONES. DUE TO THE INFILTRATION OF THE LOW LEVEL MOISTURE. OR SOME 8-10 DEGREES COOLER THAN YESTERDAY.
101 AM EDT FRI APR 10 2015 LOW PRESSURE WILL MOVE THROUGH THE CENTRAL GREAT LAKES TONIGHT AND DRAG A COLD FRONT THROUGH THE AREA. A SECONDARY COLD FRONT WILL DROP ACROSS THE AREA FRIDAY EVENING.
135 AM EDT FRI APR 10 2015 SHOWERS AND THUNDERSTORMS THROUGH THIS MORNING WITH THE PASSAGE OF A COLD FRONT. BEFORE HIGH PRESSURE MOVES IN FOR THE WEEKEND. BIGGEST CONCERN OVERNIGHT WILL BE TIMING THE EXIT OF THE FIRST ROUND OF SHOWERS/STORMS AND THE ENTRANCE OF THE ACTIVITY ASSOCIATED WITH THE MAIN COLD FRONT. SO WILL MOVE THE HIGHER POPS TOWARD THE EAST AHEAD OF THE SURFACE BOUNDARY. SHOWERS WILL END QUICKLY BEHIND THE FRONT AS DRIER AND COOLER AIR FILTERS IN FROM THE WEST.
THE HIGH RIP CURRENT RISK THAT WAS IN EFFECT FOR THE MIAMI DADE COUNTY BEACHES HAS EXPIRED WITH A MODERATE RISK OF RIP CURRENTS THIS EVENING FOR ALL THE ATLANTIC COAST BEACHES. /ISSUED 247 PM EDT THU APR 9 2015/ A RIDGE OF HIGH PRESSURE WILL CONTINUE TO DOMINATE THE WEATHER ACROSS THE REGION TONIGHT BRINGING DRY CONDITIONS TO THE REGION. THIS AREA OF HIGH PRESSURE WILL BEGIN TO SHIFT OFF TO THE EAST ON FRIDAY. TEMPERATURES ON FRIDAY AFTERNOON WILL REMAIN ON THE WARM SIDE AS THEY RISE INTO THE MID 80S ACROSS BOTH COASTS TO THE LOWER 90S ACROSS THE INTERIOR.
306 AM CDT Fri Apr 10 2015 A much cooler airmass was spreading over extreme southeast Kansas and the Missouri Ozarks this morning. Temperatures fell into the low to mid 40s, under clearing skies and light northwest breezes.
THE LACK OF A WELL-DEFINED TRIGGER SHOULD VANISH WITH THE ARRIVAL OF A POTENT MID LEVEL SHRTWV AND SFC COLD FRONT THIS EVENING. THE CURRENT AIRMASS WILL BE REPLACED BY A COOLER DRIER ONE OF PACIFIC ORIGIN FOR FRI AND THE FIRST HALF OF THE WEEKEND. GOOD AGREEMENT EARLY ON IN THE EXTENDED WITH HIGH PRESSURE SLIPPING OFF TO THE EAST AND SOUTHERLY WARM AIR ADVECTION OVER THE HEARTLAND.
112 AM EDT FRI APR 10 2015 ATLANTIC HIGH PRESSURE WILL PREVAIL THROUGH FRIDAY.
417 AM EDT FRI APR 10 2015 SHOWERS AND THUNDERSTORMS ALONG AND AHEAD OF THE COLD FRONT APPROACHING NORTHWEST GA WILL SPREAD ACROSS THE FORECAST AREA TODAY.
/ISSUED 329 PM CDT THU APR 9 2015/ WEAK RIDGE ACROSS THE AREA WILL FLATTEN THROUGH LATE FRIDAY EVENING WITH FLOW ALOFT BACKING FROM ZONAL TO SOUTHWESTERLY. THE COLD FRONT HAS PUSHED LOW LEVEL MOISTURE DOWN INTO SOUTHEAST TEXAS AND WILL TAKE SOME TIME IN RETURNING TO WEST TEXAS.
436 AM MDT FRI APR 10 2015 SEVERAL DEGREES OF WARMING ARE EXPECTED TODAY AS A FLAT RIDGE DOMINATES THE REGION. THE FLOW WILL BECOME MORE SOUTHWEST THROUGH THE DAY AS THE RIDGE AXIS GRADUALLY SHIFTS EAST OF THE AREA AND LOW PRESSURE DROPS TO A POSITION WEST OF THE BAJA PENINSULA. GOOD DAYTIME HEATING WILL ALLOW A FEW CONVECTIVE SHOWERS TO DEVELOP OVER THE HIGHER MOUNTAINS. OVERNIGHT LOW TEMPERATURES WILL ALSO BE A FEW DEGREES WARMER THAN THIS MORNING'S.
439 AM CDT FRI APR 10 2015 THIS MORNING THE COLD FRONT WAS LOCATED ACROSS NORTHERN LOUISIANA INTO THE LAKES REGION OF LOUISIANA.
1219 AM CDT FRI APR 10 2015 FOR 06Z TAFS /ISSUED 957 PM CDT THU APR 9 2015/ A STRONG EARLY-SPRING COLD FRONT CONTINUES TO APPROACH NORTHERN ALABAMA/SOUTHERN TENNESSEE THIS EVENING. ALTHOUGH A SOMEWHAT BROKEN LINE OF DEEPER CONVECTION MARKS THE POSITION OF THE COLD FRONT ON RADAR IMAGERY. THE REMNANTS OF THIS PREFRONTAL CONVECTION WILL LIKELY SHIFT NORTHEASTWARD AND IMPACT THE REGION BETWEEN 06-10Z -- PRIOR TO ARRIVAL OF COLD FRONT. SHORT TERM MODEL GUIDANCE IS IN GOOD AGREEMENT ON ARRIVAL OF COLD FRONT INTO NW ALABAMA BETWEEN 10-12Z. LINEAR CONVECTION ALONG ADVANCING COLD FRONT MAY REINTENSIFY AFTER 12Z AS FRONT PUSHES INTO SOUTHEASTERN PORTION OF THE FORECAST AREA. AN ADDITIONAL BKN BAND OF TSRA MAY IMPACT EACH TERMINAL AS COLD FRONT PUSHES SEWD.
WEAK UPPER LEVEL HIGH PRESSURE CONTINUES TO SHIFT INTO THE REGION THIS EVENING AS A WEAK UPPER WAVE MOVES TOWARDS SOUTHEAST BRITISH COLUMBIA. THE STABILIZING AFFECTS OF THIS HIGH PRESSURE, COMBINED WITH THE LOSS OF DAYTIME HEATING, HAVE RESULTED IN THE DISSIPATION OF MOST OF THE SHOWERS OVER THE AREA. THE COLUMBIA BASIN WILL GENERALLY STAY ABOVE FREEZING, THOUGH A FEW POCKETS COULD LOWER TO AROUND 32 DEGREES BRIEFLY AROUND SUNRISE FRIDAY.
139 AM EDT FRI APR 10 2015 SHOWERS AND THUNDERSTORMS THROUGH THIS MORNING WITH THE PASSAGE OF A COLD FRONT. BEFORE HIGH PRESSURE MOVES IN FOR THE WEEKEND. BIGGEST CONCERN OVERNIGHT WILL BE TIMING THE EXIT OF THE FIRST ROUND OF SHOWERS/STORMS AND THE ENTRANCE OF THE ACTIVITY ASSOCIATED WITH THE MAIN COLD FRONT. SO WILL MOVE THE HIGHER POPS TOWARD THE EAST AHEAD OF THE SURFACE BOUNDARY. SHOWERS WILL END QUICKLY BEHIND THE FRONT AS DRIER AND COOLER AIR FILTERS IN FROM THE WEST.
GULF MOISTURE RETURN WILL WORK INTO THE HIGH PLAINS AHEAD OF THESE WAVES.
/ISSUED 807 PM EDT THU APR 9 2015/ MAIN STORY THROUGH THE SHORT TERM CONTINUES TO BE THE COLD FRONT PUSHING THROUGH THE STATE FRIDAY. WITH THE HIGHEST LIKELIHOOD OF SEVERE STORMS GENERALLY SOUTH OF A LINE FROM CARROLLTON. WITH HIGHS RUNNING 5 OR SO DEGREES COOLER FRIDAY AFTERNOON THAN THE AREA HAS SEEN THE LAST SEVERAL DAYS.
Storms and cold front are projected to be east of our IL counties by 11 pm, with strong west-southwest winds in their wake. Likewise, highs on Friday will be around 15-18F colder than today, but still in the low 60s. 19z/2pm surface analysis shows 998mb low centered over southeast Iowa, with cold front trailing southward into western Missouri. Once the front passes, windy and cooler weather will be on tap overnight with a slow west to east clearing trend by dawn. Low level thermal ridge and moisture axis extends into MO/IL ahead of the approaching front. Shear with strong upper jet and low level southern jet will make severe potential with severe storms possible on the cold front as it sweeps through.
COLD FRONT IS CURRENTLY NEAR A ERV-AUS LINE MOVING S AROUND 25 MPH.
high pressure fcst to slide south across the region with some hints that a backdoor cold front may creep into northern portions of the CWA during the afternoon. Highs should recover into the lower to middle 60s during the afternoon.
EXPECT PARTLY SUNNY SKIES THROUGH HIGH CIRRUS CLOUDS AS HIGH PRESSURE RIDGE HOLDS ON AHEAD OF APPROACHING COLD FRONT FROM THE NORTHWEST. DAILY RECORD HIGHS ARE IN THE LOWER 90S AND PROBABLY WILL FALL SHORT OF THESE TODAY.
COLD FRONT IS CURRENTLY LOCATED ROUGHLY ALONG A LINE FROM JACKSON TENNESSEE.
TODAY STARTS OUT WITH HIGH PRESSURE SITTING TO THE EAST. AFTER TODAY, A LOW PRESSURE SYSTEM OVER THE GREAT LAKES REGION WILL DRAG A COLD FRONT OVER THE FLORIDA PENINSULA.
PREFRONTAL TROF/WIND SHIFT SITUATED FROM ROUGHLY LIVINGSTON TO BELLVILLE WITH DRIER AIR & FRONT ITSELF LAGGING BEHIND A FEW HOURS.
HOWEVER CAPES ARE FCST TO BE ONLY IN THE 100-200 J/KG RANGE MAINLY OVER THE HIGHER TERRAIN. AT THIS TIME IT LOOKS LIKE PCPN WILL BE IN THE FORM OF WDLY SCT HIGH BASED SHOWERS WITH THE FOCUS MAINLY OVER THE HIGHER TERRAIN AND ACROSS THE PALMER DIVIDE. FOR THIS EVENING THE HIGH BASED SHOWERS SHOULD GRADUALLY END BEFORE MIDNIGHT. AS FOR HIGHS THIS AFTN READINGS WILL RISE BACK INTO THE LOWER TO MID 60S OVER NERN CO.