Aikyam-Lab/Synoptic-Bench huggingface dataset:
/ISSUED 913 PM CST MON FEB 2 2015/ THE UPPER LEVEL LOW NEAR THE BAJA WILL CONTINUE TO SHEAR OUT AS THE UPPER TROUGH MOVES TOWARD THE STATE TONIGHT. WATER VAPOR IMAGERY SHOWS UPPER LOW OVER CABO SAN LUCUS MEXICO WITH HIGH CLOUDS MOVING OVER THE REGION. UPPER LOW SHOULD EDGE CLOSER WITH A COASTAL TROUGH DEVELOPING TOMORROW.
LOWERED MAX TEMP GRID FOR TODAY CLOSER IN LINE WITH THE COOLER NAM MOS OR A BLEND WITH GFS MOS. WHILE SHELTERED VALLEYS OF NE TN AND SW VA COULD DROP TO THE COOLER GFS MOS MINS.
1220 AM EST TUE FEB 3 2015 HIGH PRESSURE ALONG WITH DRY AIR WILL REMAIN IN CONTROL THROUGH TUESDAY.
256 AM CST TUE FEB 3 2015 WV IMAGERY THIS MORNING SHOWING UPPER LEVEL LOW AMPLITUDE RIDGE ALONG THE WEST COAST WITH DECENT MOISTURE STREAMING DOWN THRU THE PAC NW AND INTO THE NRN ROCKIES.
A BROAD AREA OF HIGH PRESSURE ALOFT WILL ENCOMPASS THE FAR WESTERN U. WITH THE RIDGE AXIS HANGING NEAR THE WEST COAST. THERE IS YET ONE MORE ROUND OF LIGHT PRECIPITATION EXPECTED ALONG A WARM FRONT AS IT LIFTS NORTHWARD ACROSS THE AREA ON WEDNESDAY.
407 AM EST TUE FEB 3 2015 A COLD FRONT, THAT JUST MOVED THROUGH SOUTH FLORIDA, IS SITTING ACROSS THE FLORIDA STRAITS THIS MORNING. MODELS ARE SHOWING THAT HIGH PRESSURE WILL BUILD OVER THE AREA TODAY. THE HIGH WILL KEEP THE WEATHER QUIET OVER SOUTH FLORIDA TODAY AND WEDNESDAY. BY WEDNESDAY NIGHT, A LOW PRESSURE SYSTEM, DEVELOPING OVER THE WESTERN GULF, WILL BEGIN TO MOVE INTO THE EASTERN GULF.
WEAK UPPER TROUGH PASSES TO THE SOUTHWEST OF THE FORECAST AREA TUESDAY AFTERNOON AND EVENING.
403 AM EST TUE FEB 3 2015 A WEAK AREA OF HIGH PRESSURE WILL BRING PARTIAL SUNSHINE TO THE NORTH COUNTRY TODAY.
443 AM EST TUE FEB 3 2015 HIGH PRESSURE WILL MOVE EAST OF THE OHIO VALLEY TODAY AS LOW PRESSURE DEVELOPS OVER THE UPPER MIDWEST. THIS LOW WILL TRACK EAST THROUGH THE GREAT LAKES REGION TONIGHT AND DROP A COLD FRONT THROUGH THE OHIO VALLEY WEDNESDAY.
437 AM EST TUE FEB 3 2015 HIGH PRESSURE BUILDS TODAY FROM THE WEST. NEXT COLD FRONT CROSSES WEDNESDAY NIGHT.
TEMPERATURES WILL BE WELL ABOVE NORMAL TODAY AS A SOUTHWESTERLY DOWNSLOPE FLOW DRAWS WARMER AIR INTO THE REGION WITH H85 TEMPERATURES CLIMBING UP TO AROUND 10C ACROSS MUCH OF CENTRAL AND SOUTHWEST KANSAS. HIGHS MAY ONLY REACH THE 50S(F) IN CENTRAL KANSAS AS A COOLER AIR MASS BEGINS TO SINK SOUTHWARD INTO THE AREA LATER TODAY. THE GENERAL PATTERN OVER THE NEXT TWO WEEKS WILL FEATURE UPPER LEVEL RIDGING OVER THE WESTERN UNITED STATES AND TROUGHING OVER THE EAST.
431 AM EST TUE FEB 3 2015 HIGH PRESSURE BUILDS OVERNIGHT INTO TUESDAY. NEXT COLD FRONT CROSSES WEDNESDAY NIGHT.
WITH LOW PRESSURE ALONG THE FRONT ACROSS FAR SOUTHEAST SD. UPPER LEVEL ANALYSIS CONTINUES TO SHOW LOW PRESSURE OVER HUDSON BAY. TEMPS RANGE FROM THE 20S ACROSS FAR NORTHWEST SD TO THE LOWER 40S ACROSS FAR SOUTHWEST SD. WITH THE HIGHEST TEMPERATURES OVER SOUTHERN AND WESTERN PORTIONS OF THE CWA. HIGHS SHOULD GENERALLY RANGE FROM THE MID TO UPPER 20S ACROSS FAR NORTHWEST SD TO THE LOW TO MID 40S ACROSS MUCH OF NORTHEAST WY AND SOUTHWEST SD.
350 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL CROSS THE ARA TONIGHT AND MOVE OFF THE SOUTHEAST COAST ON SUNDAY.
345 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL SETTLE OVERHEAD TONIGHT AND SUNDAY.
302 PM CDT SAT APR 11 2015 259 PM CDT HIGH PRESSURE IS CENTERED OVER THE MIDWEST THIS AFTERNOON BRINGING QUIET WEATHER THROUGH TONIGHT. LOWS TONIGHT ARE EXPECTED TO BE IN THE LOW TO MID 40S. THUNDERSTORMS ARE PROGGED TO DEVELOP ON THE LOW LEVEL JET THIS EVENING AND TONIGHT ACROSS THE CENTRAL PLAINS WITH SOME MODELS. UPPER WAVE IS PROGGED TO DIG INTO THE NORTHERN PLAINS SUNDAY THEN INTO THE UPPER MIDWEST SUNDAY EVENING WITH AN ATTENDANT SURFACE COLD FRONT MOVING ACROSS THE MISSISSIPPI RIVER NEAR MIDNIGHT SUNDAY NIGHT.
332 PM EDT SAT APR 11 2015 AS HIGH PRESSURE BUILDS INTO THE NORTH COUNTRY TONIGHT, SKIES WILL CLEAR OUT AND REMAIN SUNNY THROUGH SUNDAY WITH A PLEASANTLY WARM DAY EXPECTED.
633 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL CROSS THE AREA TONIGHT AND MOVE OFF THE SOUTHEAST COAST ON SUNDAY.
HIGH PRESSURE WAS CENTERED ALONG THE OHIO VALLEY THIS AFTERNOON AND EXTENDED DOWN ACROSS TN. MAINLY CLEAR AND COOL CONDITIONS ARE EXPECTED AS THE HIGH PRESSURE REMAINS IN CONTROL. LOWS WILL BE 2-3 DEGREES WARMER THAN LAST NIGHT. THE HIGH PRESSURE SYSTEM WILL MOVE OFF THE EAST COAST.
WITH PROBABILITIES INCREASING AREAWIDE ON SUNDAY AS DEEP GULF MOISTURE PUSHES WELL INLAND WITH THE PASSAGE OF THE WARM FRONT. 13 THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE TONIGHT AS A FRONTAL BOUNDARY LIFTS BACK NORTH AS WARM FRONT. MOISTURE LADEN AIR TRAVERSING COOLER SHELF WATERS WILL RESULT IN PATCHY FOG.
123 PM EDT SAT APR 11 2015 GUSTY WINDS CONTINUE TODAY DAY AS COOLER AIR MOVES INTO THE NORTH COUNTRY. FOLLOWED BY DRIER AND COOLER CONDITIONS. A WARMING TREND BEGINS ON SUNDAY ALONG WITH PLENTY OF SUNSHINE AS HIGH PRESSURE MOVES ACROSS THE NORTH COUNTRY.
400 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL CROSS THE AREA TONIGHT AND MOVE OFF THE SOUTHEAST COAST ON SUNDAY.
The lower levels of the atmosphere is relatively dry with surface dewpoints in the lower to middle 30s. Temperatures will warm up into the lower to middle 70s and southerly winds may gust up to 25 mph.
257 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL BRING DRY WEATHER THROUGH THE WEEKEND. ANY REMAINING STRATOCU SHOULD DISSIPATE BY SUNSET UNDER BUILDING HIGH PRESSURE. WARM ADVECTION WILL CONTINUE SUNDAY AS HIGH PRESSURE BEGINS TO SHIFT EAST.
WINDS CURRENTLY ABOVE ALL FORMS OF GUIDANCE ACROSS THE AREA WHICH IS LEADING TO SOME CONCERN ABOUT THE WINDS LATER TODAY AND TONIGHT ASSOCIATED WITH COLD FRONT.
339 PM EDT SAT APR 11 2015 A COLD FRONT AND ASSOCIATED SHOWER ACTIVITY WILL CONTINUE TO MOVE EAST OF THE AREA.
339 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT THROUGH SUNDAY.
108 PM EDT SAT APR 11 2015 AVIATION HIGH PRESSURE WILL BUILD IN AND BRING FAIR WEATHER THIS WEEKEND.
A SECONDARY COLD FRONT WILL MOVE ACROSS VA AND NC THROUGH THIS EVENING. CANADIAN HIGH PRESSURE WILL FOLLOW AND BUILD ACROSS THE MIDDLE ATLANTIC STATES THROUGH SUN. A SECONDARY COLD FRONT WAS ANALYZED OVER CENTRAL AND SE VA THIS AFTERNOON. 1025 MB CANADIAN HIGH PRESSURE CENTERED OVER INDIANA. AS THE HIGH BECOMES CENTERED OVER VA BY 12Z. FROM A MARITIME SURGE THAT MAY LINK WITH THE PASSING COLD FRONT THIS EVENING. LOWS MOSTLY IN THE LOWER TO MIDDLE 40S. HIGH PRESSURE BUILDS IN OVERNIGHT AND. AT LEAST THE WESTERN END OF HIGH PRESSURE CONTINUES OVER CENTRAL NORTH CAROLINA THROUGH SUNDAY NIGHT. THE NAM PROVIDES FOR MORE OF A RETURN FLOW WITH FASTER EASTWARD PROGRESS OF LOW PRESSURE OUT OF THE SOUTH PLAINS TOWARD THE LOWER MISSISSIPPI VALLEY. IN MUCH SLOWER IN THE EASTWARD PROGRESS OF LOW PRESSURE.
259 PM EDT SAT APR 11 2015 HIGH PRESSURE OVER INDIANA WILL TRACK EAST.
145 PM EDT SAT APR 11 2015 HIGH PRESSURE BRINGS DRY WEATHER THIS WEEKEND WITH A WARMING TREND.
AN ALL DAY SOAKING RAIN ON SUNDAY AS PRECIP WATER VALUES SHOULD REACH ABOUT TWO STANDARD DEVIATIONS ABOVE THE NORM FOR APRIL DUE TO UPPER LEVEL LOW PRESSURE DEVELOPING OVER WEST TEXAS. /ISSUED 413 AM CDT SAT APR 11 2015/ COLD FRONT THIS MORNING IS STATIONARY FROM SOUTH CENTRAL LA ACROSS THE NORTHERN GULF. UPPER LOW CURRENTLY WEST OF BAJA WILL BE MOVING EAST THROUGH THE DAY AS WELL AND WILL BE BE ACROSS THE SOUTHWEST STATES AND N.
245 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL BUILD OVER THE REGION FROM THE NORTH TONIGHT AND SUNDAY.
THE HIGHER CHANCE FOR DEVELOPMENT OF STORMS WILL BE NEAR A COLD FRONT IN SOUTHWESTERN KANSAS LATE AFTERNOON AND EVENING.
HIGH PRESSURE WILL CONTINUE TO SHIFT EAST OF THE FORECAST AREA TONIGHT INTO SUNDAY. THIS IS IN RESPONSE TO A MID/UPPER LEVEL LOW PRESSURE SYSTEM TREKING EAST ACROSS NORTHERN MEXICO. AS THE NOW WARM FRONT LIFTS NORTH THROUGH THE CWA.
MOSTLY CLEAR SKIES AND DRY WEATHER WILL REMAIN THROUGH THE SHORT TERM AS HIGH PRESSURE SLOWLY MOVES EAST.
112 PM EDT SAT APR 11 2015 HIGH PRESSURE OVER THE MIDWEST WILL BUILD EAST ACROSS THE REGION TODAY.
THE PRIMARY LARGE-SCALE WEATHER SYSTEM OF INTEREST IS A DEEP RIDGE WHICH EXTENDS WESTWARD FROM THE SUBTROPICAL NORTH ATLANTIC. THIS RIDGE IS EXPECTED TO VACILLATE NEAR THE FLORIDA KEYS FOR MUCH OF THE UPCOMING WEEK. BECAUSE OF THE PROXIMITY OF LARGE-SCALE RIDGING.
Mostly clear skies and light winds prevail beneath the high, with current temps mainly in the upper 40s and lower 50s. As the high shifts off to the east, S/SE winds will gradually increase across the area today. A large area of high pressure is currently centered over central Illinois. Expect temperatures to be a little bit cooler than yesterday, although still near normal in the lower to mid 60s.
Have therefore continued warm trend aoa the warmer guidance.
409 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL KEEP DRY WEATHER ACROSS THE AREA THROUGH SUNDAY.
202 PM EDT SAT APR 11 2015 A COLD FRONT AND ASSOCIATED SHOWER ACTIVITY WILL CONTINUE TO MOVE EAST OF THE AREA.
WEAK S/WV TROUGH AND ASSOCIATED THETA-E ADVECTION ALLOWING FAIRLY EXTENSIVE SHOWER/WEAK STORM PRODUCTION AND IS EXPECTED TO DECREASE IN COVERAGE BY AFTERNOON.
A PASSING WEATHER SYSTEM WILL BRING A CHANCE FOR A FEW SHOWERS AND THUNDERSTORMS MAINLY SUNDAY ALONG WITH COOLER TEMPERATURES.
450 PM CDT SAT APR 11 2015 259 PM CDT HIGH PRESSURE IS CENTERED OVER THE MIDWEST THIS AFTERNOON BRINGING QUIET WEATHER THROUGH TONIGHT. LOWS TONIGHT ARE EXPECTED TO BE IN THE LOW TO MID 40S. THUNDERSTORMS ARE PROGGED TO DEVELOP ON THE LOW LEVEL JET THIS EVENING AND TONIGHT ACROSS THE CENTRAL PLAINS WITH SOME MODELS. UPPER WAVE IS PROGGED TO DIG INTO THE NORTHERN PLAINS SUNDAY THEN INTO THE UPPER MIDWEST SUNDAY EVENING WITH AN ATTENDANT SURFACE COLD FRONT MOVING ACROSS THE MISSISSIPPI RIVER NEAR MIDNIGHT SUNDAY NIGHT.
I WILL LEAVE THE LOW POPS WE HAVE IN EASTERN PARTS OF WASHINGTON AND PHILLIPS COUNTIES. SAME IDEA FOR THE LOW POPS WE HAVE IN THE CENTRAL MOUNTAINS. MAINLY DRY AND WARMER WEATHER WILL OCCUR TODAY WITH CONTINUED WARM ADVECTION. THIS PLUME OF HIGHER THETA-E AIR IS CURRENTLY IN WEST CENTRAL TEXAS BUT SHIFTS NORTHWARD RATHER QUICKLY ON INCREASING SOUTHERLY LOW LEVEL FLOW AHEAD OF THE LEE TROUGH. HIGHS SHOULD STILL REACH THE LOWER TO MID 70S OVER THE PLAINS.
BOTH HI RES MODELS ARE ABOUT 5 DEG WARMER THAN PREV FCST INDICATES. MODELS ARE IN GOOD AGREEMENT WITH TEMPS RISING INTO THE LOW/MID 70S PERHAPS FOR THE VALLEY. TEMPS WILL BE COOLER THAN SAT.
325 PM EDT SAT APR 11 2015 AS HIGH PRESSURE BUILDS INTO THE NORTH COUNTRY TONIGHT, SKIES WILL CLEAR OUT AND REMAIN SUNNY THROUGH SUNDAY WITH A PLEASANTLY WARM DAY EXPECTED.
220 PM CDT SAT APR 11 2015 215 AM CDT A QUIET AND PLEASANT SATURDAY ACROSS THE REGION AS HIGH PRESSURE SCOOTS ACROSS CENTRAL ILLINOIS INTO INDIANA DURING MIDDAY. BEING TO THE NORTH OF THE HIGH CENTER. SO CONTINUE THE FORECAST HIGHS IN THE LOWER 60S FOR MOST LOCATIONS. MTF 240 AM CDT UPPER TROUGH WILL WILL MOVE SOUTHEAST INTO THE NORTHERN PLAINS EARLY SUNDAY WITH SOUTHERLY LOW LEVEL WINDS IN OUR AREA RESULTING WARM AND MODEST MOISTURE ADVECTION.
1238 PM CDT SAT APR 11 2015 FOR 18Z TAFS /ISSUED 1029 AM CDT SAT APR 11 2015/ STARTED OFF THIS MORNING AROUND 20 DEGREES COOLER THAN YESTERDAY WITH THE COLD FRONTAL PASSAGE YESTERDAY AND CLOUDS MOVED OUT AFTER MIDNIGHT. IT WILL SHAPE UP TO BE A NICE DAY REACHING INTO THE 70S AS HIGH PRESSURE IN THE GREAT LAKES BUILDS INTO THE TN VALLEY.
THE HIGH PRESSURE WILL PROVIDE CLEAR SKIES FOR TONIGHT. THE CLEAR SKIES AND LIGHT WINDS UNDER THE HIGH WILL PROVIDE FOR RADIATIONAL COOLING CONDITIONS WHICH WILL ALLOW TEMPERATURES TO DROP BACK INTO THE 30S. RETURN FLOW ON THE BACKSIDE OF THE HIGH SUNDAY WILL PUSH THE HIGHS INTO THE MID 60S ACROSS THE NORTH AND THE LOWER 70S ACROSS THE SRN TIER OR TWO OF COUNTIES.
/ISSUED 1109 AM CDT SAT APR 11 2015/ HIGH PRESSURE REMAINS OVER THE MIDSOUTH THIS MORNING. HIGHS SHOULD REACH INTO THE LOWER TO MID 70S. AS OF 4AM TEMPERATURES ACROSS THE REGION ARE IN THE LOW TO UPPER 40S UNDER CLEAR SKIES. A COUPLE DEGREES MORE OF COOLING ARE EXPECTED BEFORE SUNRISE WITH LOWS BOTTOMING OUT IN THE LOW TO MID 40S. JUST A PICTURE PERFECT DAY ACROSS THE MID-SOUTH WITH HIGHS IN THE LOW TO MID 70S. A SLIGHTLY WARMER NIGHT IS EXPECTED OVERNIGHT WITH LOWS AROUND 50 DEGREES. THE WEATHER PATTERN WILL BECOME QUITE UNSETTLED AS AN UPPER LEVEL LOW OVER BAJA CALIFORNIA IS EXPECTED TO BECOME CUTOFF FROM THE MAIN FLOW OUT WEST.
544 PM CDT SAT APR 11 2015 259 PM CDT HIGH PRESSURE IS CENTERED OVER THE MIDWEST THIS AFTERNOON BRINGING QUIET WEATHER THROUGH TONIGHT. LOWS TONIGHT ARE EXPECTED TO BE IN THE LOW TO MID 40S. THUNDERSTORMS ARE PROGGED TO DEVELOP ON THE LOW LEVEL JET THIS EVENING AND TONIGHT ACROSS THE CENTRAL PLAINS WITH SOME MODELS. UPPER WAVE IS PROGGED TO DIG INTO THE NORTHERN PLAINS SUNDAY THEN INTO THE UPPER MIDWEST SUNDAY EVENING WITH AN ATTENDANT SURFACE COLD FRONT MOVING ACROSS THE MISSISSIPPI RIVER NEAR MIDNIGHT SUNDAY NIGHT.
THIS AFTERNOON, THE COLD FRONT CURRENTLY EXTENDS FROM VALDOSTA TO PANAMA CITY, THEN ALONG THE GULF COAST. MODEL DATA SUGGESTS THIS COLD FRONT WILL STALL OUT ALONG THE GULF COAST FOR AT LEAST THE NEXT 24 HOURS. TONIGHT WILL BE MOSTLY CLOUDY WITH LOWS IN THE LOW TO MID 60S.
230 PM EDT SAT APR 11 2015 A COLD FRONT AND ASSOCIATED SHOWER ACTIVITY WILL CONTINUE TO MOVE EAST OF THE AREA.
IT SEEMS THAT SO FAR THIS SEASON THUNDERSTORMS HAVE ONLY FIRED OVER OUR FORECAST AREA WHEN A FRONT OR TROUGH PASSAGE PROVIDED A BETTER FORCING MECHANISM. MAINLY OVER RIDGES AND MOUNTAINS. TEMPERATURES ACROSS THE NORTH WILL BE 3-6 DEGREES COOLER THAN TODAY'S. A RELATIVELY DRY AIR MASS BENEATH A FLAT RIDGE PORTENDS QUIET WEATHER TO BEGIN THE WEEK.
606 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL BRING DRY WEATHER THROUGH THE WEEKEND. ANY REMAINING STRATOCU SHOULD DISSIPATE BY SUNSET UNDER BUILDING HIGH PRESSURE. WARM ADVECTION WILL CONTINUE SUNDAY AS HIGH PRESSURE BEGINS TO SHIFT EAST.
256 PM CDT SAT APR 11 2015 A WARM FRONT OVER SE TX AND SOUTH LA.
HIGH PRESSURE WILL BRIDGE NORTH OF THE BOUNDARY AND ONSHORE WINDS WILL DEVELOP. QUICKER INLAND PUSH OF SEA BREEZE SHOULD BRING THE LOWEST POPS TO THE COAST SOUTH OF CANAVERAL. TAIL END OF FRONTAL IS STILL PROGGED TO HANG UP NORTH OF THE COASTAL WATERS WHILE HIGH PRESSURE TO THE NORTH BRIDGES THE BOUNDARY AND DEVELOPS AN ONSHORE GRADIENT WIND FLOW. HIGH PRESSURE WILL SHIFT OFFSHORE EARLY IN THE WEEK WITH A RIDGE AXIS SETTLING INTO CENTRAL FLORIDA BY TUE. WINDS THEN BECOME MORE ONSHORE INTO SUNDAY AS FRONT WEAKENS AND HIGH PRESSURE BUILDS TOWARD THE MID ATLANTIC COAST. HIGH PRESSURE WILL PUSH SEAWARD AND WINDS WILL VEER TO SOUTHEAST MON THEN SOUTH/SOUTHEAST ON TUE.
HAVE KEPT THE LOW POP IN THE FAR SOUTHWEST FOR LATE THIS AFTERNOON. THE NEXT CONCERN WILL BE A COLD FRONT THAT MOVES INTO THE NORTHWEST DURING THE MORNING HOURS.
A COLD FRONTAL PASSAGE WILL BRING SCATTERED SHOWERS TO THE AREA TONIGHT AND NORTHWEST WIND GUSTS OF 40 TO 50 MPH SUNDAY. WINDS WILL SHIFT TO THE NORTHWEST WITH THE COLD FRONTAL PASSAGE AND THAT/S A MESSAGE THAT WE ARE CONTINUING TO CONVEY TO THOSE WITH FIRE WEATHER INTERESTS. THE RED FLAG WARNING IS ON TRACK EVEN THOUGH HIGHS ONLY IN THE LOWER 50S F WILL TAKE A BIT OF THE EDGE OFF OF THE SITUATION.
A STATIONARY FRONT JUST OFFSHORE THE SE TX/S LA COASTS SHULD BEGIN TO LIFT BACK N AS A WARM FRONT THIS EVENING. WITH THE LOWER CIGS REACHING THE I-20 TERMINALS OF E TX/N LA BY 12Z. SHOULD ALSO SEE AREAS OF LIFR CIGS/FG DEVELOP NEAR/JUST N OF THE WARM FRONT OVER DEEP E TX JUST PRIOR TO 12Z. /ISSUED 1056 AM CDT SAT APR 11 2015/ WARM FRONT OVER SE TX/SOUTH LA WILL MAKE LITTLE NWD PROGRESS THIS AFTN AND AIRMASS ON 12Z SHV SOUNDING QUITE DRY.
INFLUENCE OF SURFACE RIDGING DOMINATES INTO AT LEAST SUNDAY MORNING AS DRY AIRMASS AND SUBSIDENCE PREVAILS.
334 PM CDT SAT APR 11 2015 VERY PLEASANT EARLY APRIL AFTERNOON IN PROGRESS WITH TEMPS IN THE LOWER TO MIDDLE 60S UNDER SUNNY SKIES AND WINDS NOT AS STRONG BUT STILL GUSTY AT TIMES FROM SOUTH AROUND 10 MPH WITH GUSTS TO 20 MPH. THE NICE WEATHER COMES COMPLIMENTS OF LARGE EXPANSE OF HIGH PRESSURE CENTERED OVER THE OHIO VALLEY. STRENGTHENING RETURN FLOW ON BACKSIDE OF THE HIGH DRAWING LOW LEVEL MOISTURE NORTHWARD THROUGH THE SOUTHERN PLAINS. AND THUS HAVE MAINLY SIDED TOWARD GUIDANCE BLEND FAVORING LOWER SIDE EAST AND WARMER SIDE FAR WEST/SOUTHWEST. UPPER LEVEL TROUGH SWINGS ACROSS THE REGION PROVIDING MODERATE FORCING/DEEP LAYER SHEAR. SHOWERS AND THUNDERSTORMS SHOULD ACCOMPANY A COLD FRONT AS IT PUSHES ACROSS THE CWA BUT I AM NOT EXPECTING ANY SEVERE WEATHER.
WITH SOME INCREASE IN CLOUDS LATER AT NIGHT LOWS WILL DROP INTO THE LOWER 50S. ON SUNDAY A COLD FRONT SLIDES ACROSS THE AREA DURING THE DAY. WITH DECENT MIXING IT WILL BE ANOTHER WARM DAY WITH HIGHS UP INTO THE LOWER AND MID 70S. STILL LOOKING LIKE THE POTENTIAL FOR THUNDERSTORM DEVELOPMENT IN OUR EASTERN ZONES DURING THE AFTERNOON AS AN UPPER LEVEL TROUGH SWINGS INTO THE REGION.
120 PM PDT SAT APR 11 2015 WEAK HIGH PRESSURE WILL BRING A SLIGHT WARMING TREND TO THE AREA THROUGH SUNDAY.
303 PM CDT SAT APR 11 2015 259 PM CDT HIGH PRESSURE IS CENTERED OVER THE MIDWEST THIS AFTERNOON BRINGING QUIET WEATHER THROUGH TONIGHT. LOWS TONIGHT ARE EXPECTED TO BE IN THE LOW TO MID 40S. THUNDERSTORMS ARE PROGGED TO DEVELOP ON THE LOW LEVEL JET THIS EVENING AND TONIGHT ACROSS THE CENTRAL PLAINS WITH SOME MODELS. UPPER WAVE IS PROGGED TO DIG INTO THE NORTHERN PLAINS SUNDAY THEN INTO THE UPPER MIDWEST SUNDAY EVENING WITH AN ATTENDANT SURFACE COLD FRONT MOVING ACROSS THE MISSISSIPPI RIVER NEAR MIDNIGHT SUNDAY NIGHT.
632 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL BUILD OVER THE REGION FROM THE NORTH TONIGHT AND SUNDAY.
401 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL MAINTAIN DRY AND TRANQUIL WEATHER THROUGH SUNDAY.
243 PM EDT SAT APR 11 2015 HIGH PRESSURE WILL SETTLE OVERHEAD TONIGHT AND SUNDAY.
131 PM EDT SAT APR 11 2015 A COLD FRONT WILL MOVE OFFSHORE THIS MORNING. HIGH PRESSURE WILL BUILD OVER THE REGION FROM THE NORTH SATURDAY AND SUNDAY.
333 PM CDT SAT APR 11 2015 LOW LEVEL THETA-E HAS SLOWLY BEEN ON THE INCREASE THIS AFTERNOON FORMING A NORTH-SOUTH ORIENTED RIDGE ALONG THE DRYLINE PER THE RAP ANALYSIS. A LOW LEVEL JET DEVELOPING THIS EVENING MAY BE ABLE TO KEEP CONVECTION GOING FOR A LITTLE WHILE BUT WEAK SHORT WAVE RIDGING AHEAD OF AN UPPER LEVEL TROUGH WILL ACT TO DAMPEN THE EFFECT. SEVERE CHANCES WILL BE MUCH LOWERED WITH MUCH LESS SHEAR IN CLOSER PROXIMITY TO THE UPPER LEVEL TROUGH. AS THE AFOREMENTIONED UPPER LEVEL TROUGH APPROACHES WEST TEXAS.
1258 PM CDT SAT APR 11 2015 215 AM CDT A QUIET AND PLEASANT SATURDAY ACROSS THE REGION AS HIGH PRESSURE SCOOTS ACROSS CENTRAL ILLINOIS INTO INDIANA DURING MIDDAY. BEING TO THE NORTH OF THE HIGH CENTER. SO CONTINUE THE FORECAST HIGHS IN THE LOWER 60S FOR MOST LOCATIONS. MTF 240 AM CDT UPPER TROUGH WILL WILL MOVE SOUTHEAST INTO THE NORTHERN PLAINS EARLY SUNDAY WITH SOUTHERLY LOW LEVEL WINDS IN OUR AREA RESULTING WARM AND MODEST MOISTURE ADVECTION.
WITH THE HIGH SLIDING ACROSS THE OH VALLEY TONIGHT. THIS WILL SET UP A RIDGE VALLEY TEMPERATURE DIFFERENCE. RETURN FLOW ON THE BACK SIDE OF THE HIGH ON SUNDAY WILL RESULT IN MAXIMUM TEMPERATURES ABOUT 10 DEGREES WARMER THAN TODAY. THE MODELS HAVE TRENDED SLOWER WITH THE RETURN OF MOISTURE SUNDAY NIGHT AND HAVE REMOVED THE LOW CHANCE OF RAIN SHOWERS FROM THE SOUTHWEST PART OF THE FORECAST AREA FOR LATE SUNDAY NIGHT.
A COOL UPPER TROUGH WILL MOVE INLAND OVER THE PACIFIC NORTHWEST THROUGH TONIGHT. WEAK HIGH PRESSURE WILL SHIFT OVER THE AREA ON SUNDAY.
242 PM CDT Sat Apr 11 2015 High pressure will drift eastward into the Appalachians tonight, allowing light S/SE return flow to continue across central Illinois. Given the very dry airmass initially in place beneath the high and a continued easterly component to the low-level flow tonight, think the GFS is too aggressive. Further west where clouds arrive sooner, lows will mainly be in the lower to middle 40s. 12Z models have trended slower with the cold front expected to move through the area Sun night/Mon.
COLD FRONT IS SOUTH OF CENTRAL ALABAMA THIS MORNING. MID LEVEL TROUGH AXIS IS MOVING EAST OF THE AREA NOW. AS HIGH PRESSURE CROSSES THE OHIO RIVER VALLEY TODAY. DEEPER MOISTURE LINGERING ALONG THE GULF COAST WILL BE PULLED NORTHWARD ON SUNDAY AS A SHORT WAVE TROF TRACKS EASTWARD ACROSS THE NORTHERN UNITED STATES. AN UPPER LOW OVER THE SOUTHWEST UNITED STATES WILL PUSH INTO SOUTH TEXAS AND PULL DEEPER TROPICAL MOISTURE INTO THE GULF COAST REGION.
AHEAD OF A LOW LATITUDE CLOSED UPPER LOW APPROACHING NRN BAJA. AS THE LOW ACCELERATES EWD TONIGHT.
Temps will be fairly chilly with low temps ranging from the mid 30s to the lower 40s from NW to SE.
906 PM EST THU FEB 26 2015 THE COLD FRONT IS IN PLACE ACROSS SOUTH FLORIDA WITH A FEW LINGERING LIGHT RAIN SHOWERS CONTINUING ACROSS THE SOUTHERN ZONES. THE HIGH SURF ADVISORY AND RIP CURRENT RISK WILL BE ALLOWED TO EXPIRE AT 10PM WITH THE WIND DIRECTION CHANGE AND THE SEA SWELLS DIMINISHING. AND REMOVE THE HIGH SURF/RIP CURRENT HEADLINES. AND WILL ALLOW THE HIGH SURF AND RIP CURRENT ADVISORY TO EXPIRE AT 10PM.
A RIDGE OF HIGH PRESSURE OVER THE EASTERN PACIFIC WILL KEEP SKIES MOSTLY CLEAR THROUGH TONIGHT.
FOR 00Z AVIATION DISCUSSION BELOW MINIMAL SENSIBLE WEATHER HIGHLIGHTS IN THE SHORT TERM PERIOD OTHER THAN THE LOW TEMPERATURES TONIGHT. HIGH PRESSURE WILL BUILD ACROSS THE REGION.
854 PM CST THU FEB 26 2015 HIGH PRESSURE WILL MOVE INTO THE STATE TONIGHT. THE HIGH WILL BRING IN COLDER TEMPERATURES AND LOWS WILL BE IN THE SINGLE DIGITS TO LOWER 20S. THESE ARE SLOWLY ERODING FROM THE NORTHWEST AS STRONG HIGH PRESSURE MOVES INTO ARKANSAS.
703 PM EST THU FEB 26 2015 LOW PRESSURE OFF THE MID-ATLANTIC COAST WILL CONTINUE MOVING OUT TO SEA OVERNIGHT. CANADIAN HIGH PRESSURE WILL BUILD INTO THE AREA FOR THE WEEKEND. LOW PRESSURE OFF THE MID-ATLANTIC COAST WILL CONTINUE MOVING NORTHEAST AND OUT TO SEA. CANADIAN HIGH PRESSURE CENTERED OVER THE NORTHERN PLAINS WILL SLIP SOUTHEAST INTO THE CENTRAL MS RIVER VALLEY OVERNIGHT.
EXISTING ARCTIC HIGH PRESSURE WILL SUSTAIN A DRY/STABLE ENVIRONMENT INTO FRIDAY. SETTLING INTO A SOUTHWEST DIRECTION BY AFTERNOON AS THE HIGH SLIPS TO THE EAST. RIDGING OVER THE NORTHERN GREAT LAKES THEN SLIDES SOUTH OVER THE AREA ALLOWING FOR DRIER NORTHERLY AIR TO TAKE OVER THIS EVENING INTO THE OVERNIGHT HOURS. RECORD LOWS FOR FEB 27 DETROIT AREA: -4 (1934) FLINT AREA: -14 (1994) SAGINAW: -8 (1934) EXPANSIVE HIGH PRESSURE (1040+ MB) OVER CENTRAL CANADA EXTENDING SOUTH INTO THE PLAINS THIS AFTERNOON. WITH THE CENTER OF THE HIGH SLIDING THROUGH THE OHIO VALLEY VALLEY FRIDAY NIGHT.
A STORM SYSTEM WILL THEN BRING SHOWERS AND COOLER TEMPERATURES TO THE AREA TOMORROW THROUGH THE WEEKEND.
A COLD FRONT WILL MOVE ACROSS AIRPORTS THIS EVENING. WEAK IMPULSE ALONG THE BASE OF THE TROUGH WILL MOVE ACROSS OUR AREA TONIGHT.
RECENT SATELLITE SUGGESTS WE WILL BE IN AND OUT OF MID LEVEL SO WE WILL SIDE SLIGHTLY WARMER THAN HIGH-RES GUIDANCE AND HAVE LOWS IN TEENS AND 20S. * QUIET BUT CONTINUED COLD HIGH PRESSURE OVER CENTRAL PLAINS BUILDS INTO NEW ENGLAND FRIDAY SHOULD SEE GOOD AMOUNT OF SUNSHINE DESPITE TEMPERATURES STAYING WELL BELOW NORMAL.
525 PM CST THU FEB 26 2015 COLD FRONT HAS MOVED SOUTH ACROSS AREA. /ISSUED 321 PM CST THU FEB 26 2015/ FOLLOWING TODAYS COLD FRONT.
DRY WEATHER PREVAILS OVERNIGHT AS SPRAWLING HIGH PRESSURE BUILDS IN FROM THE CENTRAL PLAINS. * QUIET BUT CONTINUED COLD HIGH PRESSURE OVER CENTRAL PLAINS BUILDS INTO NEW ENGLAND FRIDAY SHOULD SEE GOOD AMOUNT OF SUNSHINE DESPITE TEMPERATURES STAYING WELL BELOW NORMAL.
A REINFORCING COLD FRONT WILL CONTINUE TO MOVE ACROSS THE FORECAST AREA TONIGHT.
810 PM EST THU FEB 26 2015 A WEAK COLD FRONT WAS LOCATED FROM WEST PALM BEACH SOUTHWEST TO THE NAPLES AREA THIS EVENING. /ISSUED 557 PM EST THU FEB 26 2015/ A WEAK COLD FRONT IS MOVING ACROSS SOUTH FLORIDA THIS EVENING.
1000 PM CST THU FEB 26 2015 SHORT WAVELENGTH UPPER LEVEL RIDGE OVER SOUTHERN MAN/SOUTHERN SASK WILL MOVE SOUTH ACROSS THE AREA TONIGHT. HIGH PRESSURE SYSTEM WILL MOVE TO WESTERN IA BY MORNING. HIGH PRESSURE IN EASTERN MONTANA THIS AFTN WILL TRACK SOUTHEAST THROUGH SOUTH DAKOTA AND INTO IOWA TONIGHT. SKIES CLEAR TONIGHT BUT ENOUGH OF A GRADIENT ON THE NORTH SIDE OF THE HIGH TO CONTINUE 5-7 KT WIND IN ERN ND/RRV WHILE EASTERN FCST AREA GOES LIGHT/VARIABLE. TONIGHT WILL SEE LOW TEMPS A BIT WARMER THAN LAST NIGHT IN MOST AREAS AS THE COLDEST 925 MB WINDS SHIFT SOUTH OF THE AREA. A BIT WARMER AGAIN ON FRIDAY WITH SUNSHINE AS WARMER 850MB/925MB AIR DROPS SOUTH.