Aikyam-Lab/Synoptic-Bench huggingface dataset:
1240 PM EDT THU JUL 9 2015 LOW PRESSURE WILL CROSS THE AREA TODAY. DRY WEATHER RETURNS ON FRIDAY WITH HIGH PRESSURE. STRATUS FROM THIS MORNING ACROSS MOST AREAS FROM PIT AND SOUTH HAS DISSIPATED AND HAS ALLOWED FOR THE LOW LEVELS TO BEGIN MIXING OUT. DAMAGING WIND GUSTS ARE THE PRIMARY THREAT AND LOCALIZED FLOODING DUE TO POSSIBLE TRAINING CELLS - AND RECENT RAINFALL - IS ALSO POSSIBLE IF A CONVECTIVE LINE BECOMES MORE ORIENTED TO THE APPROACHING COLD FRONT. THE FRONTAL PASSAGE WILL CAUSE DEW POINTS TO DROP TO MORE COMFORTABLE LEVELS BY LATE TONIGHT AND HIGH PRESSURE BEGINS TO DEVELOP FROM THE WEST TO HELP DIMINISH POPS. HIGH PRESSURE WILL BE IN PLACE AMID MOSTLY ZONAL FLOW. A LITTLE MORE SUNSHINE WILL BE APPARENT IN THE PERIOD AS A RESULT OF HIGH PRESSURE.
1134 AM EDT THU JUL 9 2015 LOW PRESSURE TRAVELING ACROSS NORTHERN OHIO WILL BRING THE LIKELIHOOD FOR SHOWERS AND A FEW THUNDERSTORMS TODAY.
755 AM CDT THU JUL 9 2015 MVFR/IFR CATEGORIES OVER THE FOUR STATE REGION WILL BE LIFTING TO VFR CONDITIONS DURING THE MID MORNING HOURS WITH THE LOWER CEILINGS AND VISIBILITY RESTRICTIONS ENDING. AS UPPER RIDGE BECOMES CENTERED OVER TX AND GRADUALLY INCREASES. AFTN HIGHS IN THE LOWER TO MID 90S.
933 AM EDT THU JUL 9 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION THIS MORNING AND WILL THEN MOVE EAST. WEAK AREAS OF LOW PRESSURE WILL PASS SOUTH OF THE AREA THROUGH FRIDAY.
1243 PM EDT THU JUL 9 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION THIS MORNING AND WILL THEN MOVE EAST. WEAK AREAS OF LOW PRESSURE WILL PASS SOUTH OF THE AREA THROUGH FRIDAY.
HIGH PRESSURE WILL BUILD IN FROM THE EAST ELSEWHERE.
/ISSUED 353 AM CDT Thu Jul 9 2015/ (Today and Tonight) The subtropical ridge over the southeast states will begin to build west into Texas the next 24 hours, and will be the main weather feature affecting our weather through tonight.
AS THE LOW TO MID LEVEL FLOW BECOMES MORE SOUTHERLY.
1151 AM EDT THU JUL 9 2015 UPDATE LOW PRESSURE WILL BRING RAIN TO SOUTHERN LOWER MICHIGAN THIS MORNING WITH IMPROVING CONDITIONS THIS AFTERNOON.
1011 AM EDT THU JUL 9 2015 AN AREA OF HIGH PRESSURE STRETCHES FROM THE NORTHERN GREAT LAKES TO ME WHILE LOW PRESSURE MOVES ALONG A STATIONARY FRONT ACROSS PENNSYLVANIA TO SOUTH OF NEW ENGLAND. A LOW PRESSURE SYSTEM MOVING ALONG THE FRONT WILL BRINGING A THREAT OF LIGHT RAIN AS FAR NORTH AS SOUTHERN VERMONT. INCREASING SOUTHERLY FLOW WILL HELP SURFACE TEMPERATURES CLIMB INTO THE 70S AS HIGH PRESSURE OVER MAINE CONTINUES TO SLIDE EAST WITH LOW PRESSURE SITTING JUST SOUTH OF LONG ISLAND ALONG A QUASI-STATIONARY FRONT EXTENDING WESTWARD. THE LOW PRESSURE SYSTEM MOVES ACROSS PA/SRN NY THE SOUTH OF NEW ENGLAND TONIGHT SO KEEPING A CHANCE OF SHOWERS IN FOR SOUTHERN SECTIONS. THE LOW WILL BE DEPARTING AND SKIES WILL BECOMING MOSTLY SUNNY WITH NW WINDS AND WARMER TEMPS INTO THE 70S AND LOW 80S.
1003 AM CDT THU JUL 9 2015 EXPECT DECREASING CLOUDS TODAY AS HIGH PRESSURE BUILDS IN BEHIND A DEPARTING LOW. COULD SEE SOME PATCHY FOG IN LOWER LYING AREAS LATER TONIGHT INTO EARLY FRIDAY MORNING AS HIGH PRESSURE BUILDS INTO THE AREA. 500 MB TROUGH EXTENDING SOUTH FROM CLOSED LOW OVER HUDSON BAY THAT SWEEPS ACROSS U. FORECAST CONFIDENCE HIGH 500 MB RIDGING DEVELOPS OVER THE PLAINS IN RESPONSE TO CLOSED LOW CURRENTLY MOVING ONSHORE OVER CENTRAL CALIFORNIA. WITH THE RIDGE AXIS CENTERED OVER MN/IA BY 12Z FRIDAY.
WITH COLD FRONT EXTENDING SOUTHWESTWARD INTO THE OZARKS. AS THE LOW PULLS FURTHER AWAY. WITH READINGS ONLY REACHING THE LOWER TO MIDDLE 70S. UPPER RIDGE WILL GRADUALLY BUILD INTO THE REGION OVER THE UPCOMING WEEKEND. HOWEVER 00Z JULY 9 GFS/ECMWF ARE BOTH WEAKER WITH THE RIDGE. THIS MEANS THE ONCE DRY FORECAST WILL NOW BE REPLACED BY A MORE UNSETTLED SCENARIO WHERE NOCTURNAL CONVECTION RIDING ALONG THE PERIPHERY OF THE RIDGE MAY IMPACT PARTS OF CENTRAL ILLINOIS.
345 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER TODAY AND TONIGHT.
407 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TODAY.
444 AM CDT TUE APR 28 2015 UPPER LOW CONTINUES TO SPIN OVER NORTH CENTRAL TEXAS THIS MORNING. UPPER LOW IS PROGGED TO CONTINUE HEADING EASTWARD TODAY AND TONIGHT. AN UNSEASONABLY COOL AND DRY AIRMASS WILL SETTLE IN AMID BRISK NORTHERLY WINDS AS BROAD LOW PRESSURE IS KICKED EASTWARD AND HIGH PRESSURE BUILDS SOUTH FROM THE PLAINS INTO WRN/CENTRAL TX. MEAN TROUGH DIGGING INTO THE ERN CONUS WILL RESULT IN ONLY A SLOW DAILY TEMPERATURE MODIFICATION. ACCELERATING TOWARD THE END OF THE WEEK AND INTO THE WEEKEND AS HIGH PRESSURE AT THE SFC SHIFTS EAST OF THE REGION AND FLAT UPPER RIDGING MOVES IN FROM THE WEST. 13 A BROAD AREA OF LOW PRESSURE OVER THE NORTHWEST GULF WILL CONTINUE TO TRACK EAST AND AWAY FROM THE AREA TODAY. WITH HIGH PRESSURE BUILDING INTO CENTRAL TEXAS.
A BROKEN LINE OF RAIN SHOWERS HAS DEVELOPED /POST-COLD FRONTAL/. A COLD FRONT CURRENTLY BISECTING THE REGION FROM THE NE TO THE SW WILL SLOWLY PUSH EASTWARD TONIGHT. TO THE LOWER 30S BY THE AFTERNOON. RH VALUES IN THE UPPER TEENS TO THE LOWER 20S ARE POSSIBLE FOR MOST OF THE CWA.
HIGH PRESSURE WILL KEEP THE WEATHER WARM AND DRY MUCH OF THE WEEK. AND COOLER DAYS. A HIGH PRESSURE RIDGE OVER CALIFORNIA HAS BROUGHT US THE WARM WEATHER. THE HIGH PRESSURE RIDGE WILL LEAN OVER UNDER A WEAK AMORPHOUS TROUGH THAT BEARS DOWN OVER THE WEST COAST WEDNESDAY THROUGH THE WEEKEND.
331 AM CDT Tue Apr 28 2015 Early this morning a mid-level ridge was in place across the western U. With the mid-level ridge advancing eastward toward the central U. Northerly upper flow will start the day across eastern Kansas on Wednesday while a ridge builds to the west from the southern Rockies to the Northern Plains through the day.
LATE THIS WEEK A SLOW MOVING UPPER LOW WILL BRING A RETURN OF COOL AND SHOWERY CONDITIONS. BLEND OF CONSALL AND LATEST LAMP SUPPORT LOWS FROM THE M30S OVR THE HIGHEST TERRAIN OF THE ALLEGHENIES. SLOWLY RISING HEIGHTS AND THE APPROACH OF HIGH PRESSURE AT THE SURFACE WILL BRING A FEW DAYS OF DRY AND NOTICEABLY MILDER CONDITIONS FOR TUESDAY AND WED. A SLOW MOVING SRN STREAM UPPER LOW WILL EMERGE INTO THE SERN TO MID ATLC STATES DURING THE MIDWEEK PERIOD. IN THE FORM OF A CLOSED LOW DROPPING SSE FROM THE UPPER GLAKES REGION.
305 AM CDT TUE APR 28 2015 WEAK COLD FRONT ENTERS NORTHWEST IOWA THIS AFTERNOON AND BRINGS SOME MID-LEVEL THETA-E ADVECTION AND VERY WEAK FRONTOGENETICAL FORCING (AND THAT IS DEPENDENT ON WHICH MODEL).
428 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD INTO AND OVER THE AREA FROM THE NORTHWEST TODAY INTO TONIGHT. THE HIGH WILL SLIDE OFF THE COAST ON WEDNESDAY.
MOSTLY CLEAR SKIES AND ABOVE NORMAL TEMPERATURES WILL CONTINUE EARLY THIS WEEK WITH HIGH PRESSURE ALOFT. GRADUAL COOLING AND A RETURN OF THE MARINE LAYER IS EXPECTED FOR THE SECOND HALF OF THE WEEK AS WEAK LOW PRESSURE DEVELOPS. THE HIGH OF 93 AT FILLMORE WAS THE WARMEST HIGH TEMP. AN UPPER LEVEL RIDGE EXTENDING FROM OFF THE SRN CA COAST INTO CENTRAL AND NRN CA THIS EVENING WILL BUILD INTO SRN CA LATER TONIGHT AND TUE. A FLAT UPPER RIDGE WILL LINGER OVER SRN CA ON WED. WITH WEAK UPPER RIDGING EXPECTED FOR THU.
LEADING EDGE OF MID LEVEL CLOUDS ASSOCIATED WITH THE TROUGH MAY REACH THE FAR NORTHWEST TOWARDS 00Z.
455 AM EDT TUE APR 28 2015 WATER VAPOR IMAGERY AND RAP ANALYSIS SHOW A MID LEVEL RIDGE EXTENDING FROM IA TO JAMES BAY. LEADING TO COOLER CONDITIONS ALONG THE LAKES. FAVORED THE WARMER SIDE OF GUIDANCE GIVEN THAT WARMER GUIDANCE HAS VERIFIED BETTER THE LAST COUPLE OF DAYS. SFC RIDGING TAKES MOVES SQUARELY BACK OVER THE CWA ON THU BEFORE MOVING OUT ON FRI EVENING AS UPPER LEVEL FLOW BECOMES MORE ZONAL. BUT SW-W FLOW AND AN OVERALL MUCH WARMER AIRMASS ON FRI WILL ALLOW FOR HIGH TEMPS IN THE 50S E AND THE 60S W. ANOTHER HIGH PRES WILL BUILD OVER HUDSON BAY AND EXTEND A RIDGE S INTO THE WRN GREAT LAKES WED/THU. AS THE HIGH BEGINS RIDGING S INTO THE UPPER LAKES LATE TONIGHT/WED.
307 AM CDT TUE APR 28 2015 LATEST WATER VAPOR SATELLITE IMAGERY SHOWS UPPER LEVEL LOW OVER NORTHEAST UNITED STATES. 00Z GFS/NAM/ECMWF INDICATING UPPER LEVEL CLOSED LOW/TROUGH TRACKING SOUTH INTO THE GREAT LAKES REGION WEDNESDAY INTO WEDNESDAY NIGHT. THE MODELS SHOW SLIGHT DIFFERENCES IN STRENGTH AND PLACEMENT WITH THE UPPER LEVEL CLOSED LOW/TROUGH.
SFC/LL INVERTED TROUGH EXPECTED TO SET UP ACROSS THE GULF COAST/DEEP SOUTH LATER TODAY. FOLLOWED BY A SHARP UPPER TROUGH OVER THE MID-SOUTH LATE TONIGHT.
250 AM MST TUE APR 28 2015 LINGERING LOW LEVEL MOISTURE FROM THE EXITING LOW PRESSURE SYSTEM TO OUR EAST WILL ALLOW FOR A FEW AFTERNOON SHOWERS OVER EASTERN ARIZONA TODAY. WITH TEMPERATURES ACROSS THE LOWER DESERTS APPROACHING THE 100 DEGREE MARK DURING THE LATTER PARK OF THE WEEK. THE VERY WESTERN FRINGES OF THE UPPER LOW OVER THE SOUTHERN PLAINS CONTINUES TO AFFECT EASTERN ARIZONA WITH OCCASIONAL STRATO- CU. WHILE THE PACIFIC RIDGE SLOWLY EDGES INTO WESTERN AND CENTRAL ARIZONA. FROM WEDNESDAY THROUGH THE EARLY WEEKEND THE PACIFIC RIDGE WILL DOMINATE ACROSS THE DESERT SOUTHWEST WITH 500MB HEIGHTS OF 578-580DM THROUGH THE PERIOD.
WATER VAPOR IMAGERY DEPICTS AN UPPER LOW CENTERED OVER NRN TX. COOLER TEMPS EXPECTED TONIGHT WITH MIN READINGS IN THE LOWER/MID 50S.
329 AM CDT TUE APR 28 2015 THE UPPER LOW THAT BROUGHT SOME MUCH NEEDED RAIN TO THE PANHANDLES IS STEADILY MOVING AWAY FROM THE AREA EARLY THIS MORNING.
602 AM EDT TUE APR 28 2015 CLEAR SKIES AND LIGHT WINDS WILL SET THE STAGE FOR FROST ACROSS MUCH OF THE REGION EARLY THIS MORNING WITH LOWS AROUND OR A FEW DEGREES ABOVE FREEZING. TEMPERATURES WILL REBOUND LATER TODAY WITH HIGHS REACHING INTO THE LOWER 60S IN MOST LOCATIONS. THE 12 NAM WAS VERIFYING TOO COOL AND TOO MOIST IN THE LOW LEVELS BASED ON AIRCRAFT SOUNDINGS. WINDS SHOULD REMAIN LIGHT WITH WEAK RIDGING OVER THE AREA. FAVORED THE WARMER GFS WITH HIGHS MAINLY IN THE LOWER 60S. THIS LOW EXPECTED TO MOVE ESE TO THE MID ATLANTIC COAST FRI WITH AN UPR RIDGE BUILDING INTO THE WRN GRTLKS IN ITS WAKE. THIS SHOULD RESULT IN FAIR WX WITH WARMER TEMPS IN OUR AREA.
411 AM EDT TUE APR 28 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY AND WEDNESDAY.
353 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TODAY.
HIGH PRESSURE WILL PROVIDE WARM TEMPERATURES AND SUNNY SKIES ACROSS NEVADA TODAY.
142 AM EDT TUE APR 28 2015 UPPER LEVEL LOW PRESSURE OVER THE AREA WILL MOVE OFF TO THE SOUTHEAST INTO TUESDAY THEN HIGH PRESSURE OVER LAKE SUPERIOR WILL BUILD SOUTHEAST OVER THE AREA TUESDAY AND WEAKEN.
356 AM EDT TUE APR 28 2015 HIGH PRESSURE IS SITUATED OFF THE COAST OF SOUTH CAROLINA. THE WEATHER WILL BE DOMINATED BY A WAVE OF LOW PRESSURE MOVING EAST ALONG THE OLD FRONTAL BOUNDARY ACROSS NORTH-CENTRAL FLORIDA. SEEMS LIKE THE LOW CENTER IS A LITTLE FURTHER SOUTH THAN IN PREVIOUS MODEL RUNS. ISENTROPIC LIFT AHEAD OF THE LOW PRESSURE SYSTEM WILL INCREASE BY LATE THIS AFTERNOON AND EVENING. THE LOW PRESSURE WAVE WILL SLOWLY MOVE EAST THROUGH WEDNESDAY. THE HIGHEST AMOUNTS SHOULD BE ACROSS THE SOUTHERN CWFA. CLOSEST TO THE LOW PRESSURE CENTER. THIS WILL ALLOW FOR THE BULK OF THE PRECIPITATION TO HAVE ENDED BUT STILL SOME RAIN POTENTIAL WITH THE UPPER LEVEL LOW LINGERING IN THE EAST.
BUT SHOWERS AND THUNDERSTORMS ARE DEVELOPING OUT AHEAD OF AN UPPER LOW THAT IS CENTERED OVER NORTHEAST TEXAS. THE UPPER LOW WILL SLOWLY TRECK EASTWARD TODAY AND SHOWERS WILL INCREASE ACROSS THE AREA THROUGH THE MORNING HOURS. A COOL DAY IS ON TAP WITH HIGHS ONLY IN THE LOW/MID 60S ACROSS THE AREA. BY THIS EVENING THE UPPER LOW WILL BE CENTERED OVER SOUTHERN ARKANSAS AND THE GFS SUGGESTS THAT DRIER AIR WILL BUILD IN FROM THE SOUTHWEST WITH PWATS FALLING BELOW AN INCH ACROSS THE WESTERN PORTIONS OF THE AREA. THE UPPER LOW WILL MOVE ACROSS THE NORTHERN PORTIONS OF THE STATE TONIGHT WITH A CONTINUED CHANCE FOR LIGHT RAINSHOWERS OVER MUCH OF THE AREA. HIGHS WILL BE A LITTLE WARMER ON WEDNESDAY.
AND WILL SLOWLY MOVE EAST AS PRECIP ROTATES AROUND UPPER LOW.
649 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER TODAY AND TONIGHT.
355 AM MST TUE APR 28 2015 A WARMING TREND WILL CONTINUE THROUGH THE WEEK AS HIGH PRESSURE BUILDS INTO THE REGION. THE UPPER LOW THAT AFFECTED THE SOUTHWEST STATES OVER THE WEEKEND WILL CONTINUE TO MOVE EAST THROUGH TEXAS. BY WEDNESDAY HIGH PRESSURE WILL BUILD IN OVER THE REGION BRINGING ABOVE NORMAL HIGH TEMPERATURES AND DRIER CONDITIONS INTO THE WEEKEND.
A WEAK TROUGH WILL DEVELOP NEAR THE WEST COAST FOR THE END OF THE WEEK WITH SHOWER AND THUNDERSTORM POTENTIAL INCREASING EACH DAY THROUGH THE WEEKEND. RIDGE OVER THE CWA WILL REMAIN IN PLACE TODAY BEFORE DRIFTING EAST WEDNESDAY. AS RIDGE MOVES EAST WEDNESDAY.
626 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TODAY.
646 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TODAY AND WEDNESDAY WITH DRY WEATHER.
SUNNY AND MUCH WARMER TODAY AS HIGH-AMPLITUDE UPPER RIDGE COMES WITH SURFACE THERMAL PRESSURE TROUGH RIGHT BEHIND. COLD FRONT CURRENTLY OFF THE NW COAST WILL COME INLAND AND THROUGH OREGON ZONES THIS EVENING AND IDAHO ZONES WEDNESDAY MORNING FOLLOWED BY BREEZY COOLER WX. MODELS AGREE ON A SHALLOW UPPER LEVEL TROUGH CROSSING SOUTHEAST OREGON AND SOUTHWEST IDAHO WEDNESDAY NIGHT. WITH ISOLATED SHOWERS OVER THE HIGHER TERRAIN.
WITH TEMPERATURES HAVING A HARD TIME DROPPING INTO THE LOWER 80S.
347 AM CDT Tue Apr 28 2015 An upper level low over the northern Permian Basin will push east today bringing an end to rain chances. A cold front associated with this low moved through the area yesterday and high pressure behind the front brought below normal temperatures.
UPPER AIR ANALYSIS AT 5H SHOWED A LOW OVER NORTHERN NEW MEXICO AND RIDGE AXIS FROM NORTHWEST GULF TO THE MINNESOTA AND 3H REVEALED A JET MAX OF 130 KNOTS BIG BEND TO WEST CENTRAL LOUISIANA. WATER VAPOR IMAGERY SHOWED THE UPPER LEVEL LOW OVER NORTH CENTRAL TEXAS AND TWO AREAS OF DARKENING OR DISTURBANCES OVER NORTHEAST TEXAS AND OVER SOUTHEAST LOUISIANA. UPPER LEVEL LOW WILL TRACK TO NORTH LOUISIANA AND ARKANSAS THIS EVENING. THE LOW WILL REMAIN POSITIVELY TILTED AND SOUTHWEST FLOW WILL BRING IN DRY AIR THIS AFTERNOON AND EVENING. THE MAIN TROUGH AXIS WILL SINK SOUTH AND PUSH THROUGH TEXAS AND LOUISIANA COAST BY 06Z TONIGHT AND COLD AIR ADVECTION WILL BEGIN.
134 AM PDT Tue Apr 28 2015 High pressure will bring mainly dry weather and above normal temperatures to the area through the week.
MID TO HIGH LEVEL CLOUDS WILL PREVAIL THRU 18Z DUE TO DRIER EASTERLY WINDS AT THE LOWER LEVELS. 14 /ISSUED 623 PM CDT MON APR 27 2015/ A CLOSED UPPER LOW OVER TEXAS WILL MOVE EASTWARD TONIGHT AND BECOME AN OPEN WAVE BY LATE TUESDAY AS IT INTERACTS WITH THE WESTERN EDGE OF TROUGHS TO THE NORTH AND NORTHEAST OF OUR AREA.
THE GREATEST RISK FOR FROST IS ACROSS MUCH OF NORTHERN INDIANA INTO SOUTHWESTERN LOWER MICHIGAN AS LOWS FALL INTO THE LOWER TO MIDDLE 30S. TEMPERATURES WILL REBOUND LATER TODAY WITH HIGHS REACHING INTO THE LOWER 60S IN MOST LOCATIONS. THE 12 NAM WAS VERIFYING TOO COOL AND TOO MOIST IN THE LOW LEVELS BASED ON AIRCRAFT SOUNDINGS. WINDS SHOULD REMAIN LIGHT WITH WEAK RIDGING OVER THE AREA. FAVORED THE WARMER GFS WITH HIGHS MAINLY IN THE LOWER 60S. THIS LOW EXPECTED TO MOVE ESE TO THE MID ATLANTIC COAST FRI WITH AN UPR RIDGE BUILDING INTO THE WRN GRTLKS IN ITS WAKE. THIS SHOULD RESULT IN FAIR WX WITH WARMER TEMPS IN OUR AREA.
224 AM EDT TUE APR 28 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY AND WEDNESDAY.
THE GREATEST RISK FOR FROST IS ACROSS MUCH OF NORTHERN INDIANA INTO SOUTHWESTERN LOWER MICHIGAN AS LOWS FALL INTO THE LOWER TO MIDDLE 30S. TEMPERATURES WILL REBOUND LATER TODAY WITH HIGHS REACHING INTO THE LOWER 60S IN MOST LOCATIONS. AND MIN TEMPS IN THE LOW-MID 30S. ANOTHER DRY DAY ON TAP FOR TOMORROW AS MID/UPPER LEVEL RIDGING SLIDES OVER THE GREAT LAKES.
317 AM CDT TUE APR 28 2015 MAIN CONCERNS IN THIS FORECAST CYCLE ARE THE FIRST 24 HOURS WITH CHANCES OF RAIN AND COOLER TEMPS. THE UPPER LOW PRESSURE SYSTEM CONTINUES TO SPIN OVER WEST CENTRAL TEXAS AND ROTATING ENERGY TO THE EAST.
TODAY THROUGH WEDNESDAY NIGHT UPPER LEVEL ANALYSIS HAS CUT-OFF LOW ACROSS TEXAS SLOWLY SHIFTING EAST AS RIDGE WORKS ITS WAY INTO THE NORTHERN AND CENTRAL ROCKIES. NORTHERN STREAM TROF IS NEARLY OUT OF WESTERN SOUTH DAKOTA WITH SKIES CLEARING ACROSS NORTHEAST WYOMING AND NORTHWEST SOUTH DAKOTA. COLD FRONT HAS CLEARED SOUTH CENTRAL SD WITH HIGH PRESSURE BUILDING INTO THE WESTERN DAKOTAS. SKIES WILL BECOME MOSTLY SUNNY TO PARTLY CLOUDY AS HIGH PRESSURE SETTLES INTO THE DAKOTAS. UPPER RIDGE AXIS MOVES INTO THE NORTHERN PLAINS WITH SUNNY SKIES AND WARMER TEMPERATURES EXPECTED.
HIGH PRESSURE WILL BUILD INTO THE REGION TUESDAY THROUGH WEDNESDAY WITH DRY WEATHER.
ADDITIONAL WAVES OF SHWRS/TSTMS MAY CONTINUE DURING THE AFTERNOON HOURS ON TUESDAY AS A SLOW MOVING UPPER LOW FINALLY BEGINS TO EJECT OUT OF W TX JUST SOUTH OF THE RED RIVER VALLEY TOWARD THE END OF THE TAF PERIOD. LITTLE TO NO IMPROVEMENT IN CIGS IS EXPECTED DURING THE AFTERNOON AS THE LOW MOVES OVERHEAD CONVECTION SHOULD BEGIN TO TAPER OFF FROM WEST TO EAST DURING THE LATE AFTERNOON THROUGH THE EVENING HOURS AS THE UPPER LOW SHIFTS EAST.
MODELS CONTINUED TO SHOW A RIDGE OF HIGH PRESSURE ALOFT BUILDING OVER THE REGION THIS WEEK. MEDIUM RANGE MODELS SHOW THE RIDGE BREAKING DOWN BY THE WEEKEND AS A SYSTEM APPROACHES THE SOUTHERN CALIFORNIA COAST.
1217 AM CDT TUE APR 28 2015 HIGH PRESSURE BUILDING SOUTH ACROSS THE NORTHERN PLAINS. MEANWHILE AN INVERTED TROUGH PERSISTS ALONG THE FRONT RANGE INTO WESTERN S DAKOTA. A LOW PRESSURE SYSTEM CONTINUES TO SLOWLY MOVE ACROSS THE SOUTHERN PLAINS TOWARDS THE SOUTHEAST CONUS. THE INVERTED TROUGH TO THE NORTHWEST WILL BEGIN TO PUSH EAST/SOUTHEAST OVERNIGHT INTO TOMORROW. TOMORROW THE TROUGH WILL CONTINUE TO PUSH SE ACROSS THE CWA. AN AMPLIFIED UPPER RIDGE AT THIS TIME WILL EXTEND FROM THE DESERT SOUTHWEST INTO SASKATCHEWAN CANADA WHILE AN AMPLIFIED TROUGH EXTENDS FROM THE GREAT LAKES REGION INTO THE LOWER MISSISSIPPI VALLEY.
402 AM MDT TUE APR 28 2015 A RIDGE WILL STRETCH ACROSS THE FORECAST AREA TODAY. MOISTURE FROM THE LAST DISTURBANCE ROTATING AROUND THE UPPER LOW CENTERED OVER TEXAS WILL FOCUS OVER SW CO IN THE MORNING. RIDGE WILL CONTINUE BUILDING OVER THE AREA WEDNESDAY, WHICH SHOULD BE WARMER AND DRIER.
328 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL BUILD INTO THE REGION TODAY AND WEDNESDAY WITH DRY WEATHER.
THE THINNER HIGH CLOUDS ACROSS THE NORTH SHOULD ALLOW THE COOLER PROJECTED LOWS THERE BE REALIZED. DEWPOINT BOUNDARY HOWEVER IS CONSIDERABLY FURTHER NORTH INDICATED BY A SUBTLE TROUGH AND ROUGHLY ALONG AND SOUTH OF A CSG TO MCN LINE. LOW PRESSURE WILL BEGIN TO DEVELOP ALONG THIS FRONT OVER THE NORTHERN GULF OF MEXICO AS CLOSED UPPER LOW MOVES SLOWLY EAST OUT OF TEXAS. AS UPPER LOW TRACKS ACROSS NORTHERN ALABAMA.
408 AM CDT Tue Apr 28 2015 An upper low is currently situated across the northern Big Country early this morning and will move east to the Arklatex region by late afternoon. Rain will gradually taper off today as the upper low moves away from the area. Gusty north winds will develop on the back side of the upper low today, along with cloudy skies through a good portion of the day. Temperatures today will be well below normal with highs mainly in the lower 60s. Clearing skies, light winds and a drier airmass will result in very chilly temperatures tonight, with the mercury falling into the lower and middle 40s by daybreak Wednesday. Northerly flow aloft develops by Tuesday night and Wednesday as the upper low heads off to the east.
607 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY.
137 AM EDT TUE APR 28 2015 A LOW PRESSURE AREA OVER NOVA SCOTIA WHICH HAS KEPT THE NORTH COUNTRY IN LOW CLOUDS AND LIGHT SHOWERS THE LAST SEVERAL DAY WILL SLOWLY MOVE SOUTHEAST OF NOVA SCOTIA OVERNIGHT AND TUESDAY.
127 AM EDT TUE APR 28 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY AND WEDNESDAY.
1112 PM MDT MON APR 27 2015 LATEST WV IMAGERY AND RAP ANALYSIS SHOWS LARGE SCALE CLOSED UPPER LOW CENTERED OVER TX PANHANDLE WITH MID LEVEL VORTICITY ROTATING THROUGH OK/SOUTHER KS. GOOD RADIATION CONDITIONS SHOULD ALLOW FOR LOCATIONS IN OUR CWA TO REACH FREEZING (POSSIBLY LOWER) TONIGHT. H5 RIDGE CONTINUES TO BUILD EAST AND TEMPS ALOFT WILL MODERATE A LITTLE. H5/H7 RIDGE BUILDS OVER THE ENTIRE WESTERN PORTION OF THE COUNTRY TUESDAY NIGHT. WITH RIDGE AXIS EXTENDING EASTWARD INTO THE WESTERN PLAINS THRU MIDWEEK. MODELS TREND THIS RIDGE TO FLATTEN.
154 AM EDT TUE APR 28 2015 A WEAK TROUGH OF LOW PRESSURE WILL PUSH THROUGH THE REGION THIS EVENING. WITH HIGH PRESSURE BUILDING BACK IN FROM THE WEST LATER TONIGHT THROUGH TUESDAY. THE HIGH WILL SLIDE OFF THE COAST ON WEDNESDAY.
200 AM EDT TUE APR 28 2015 HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY.
530 AM CDT TUE APR 28 2015 LATEST WATER VAPOR SATELLITE IMAGERY SHOWS UPPER LEVEL LOW OVER NORTHEAST UNITED STATES. 00Z GFS/NAM/ECMWF INDICATING UPPER LEVEL CLOSED LOW/TROUGH TRACKING SOUTH INTO THE GREAT LAKES REGION WEDNESDAY INTO WEDNESDAY NIGHT. THE MODELS SHOW SLIGHT DIFFERENCES IN STRENGTH AND PLACEMENT WITH THE UPPER LEVEL CLOSED LOW/TROUGH.
LOWERED TEMPERATURES BY A DEGREE OR TOW ACROSS THE SOUTHWEST WHERE TEMPERATURES HAVE FALLEN INTO THE LOW/MID 30S ALREADY. THE COLD FRONT HAS FINALLY PUSHED THROUGH ALL OF WESTERN AND CENTRAL NORTH DAKOTA. THIS SEEMS REASONABLE GIVEN THE WARMER SURFACE TEMPERATURES AND LOW LEVEL LAPSE RATES OVER THIS AREA.
639 AM EDT TUE APR 28 2015 DRY AND WARMER WEATHER IS EXPECTED TODAY AND WEDNESDAY.
MID-LEVEL COOLING) IS DESCENDING UPON THIS UPPER LOW'S WESTERN FLANK. WITH THE SOUTHERN EXTENT OF THE AIR MASS THE COLD FRONT THAT WILL BE ADVANCING SOUTH TO THE COAST OVER THE NEXT FEW HOURS. THE GENERAL SYNOPTIC SOUTHERN PLAINS FLOW PATTERN WILL BECOME MORE NORTH AND WEST AS TEXAS FALLS BETWEEN RETREATING EASTERN TROUGHING AND AMPLIFYING WESTERN CONUS RIDGING. A DRY REINFORCING FRONTAL PASSAGE WEDNESDAY AS WESTERN HIGH PRESSURE BUILDS IN AND FORTIFIES THE TAUNT OFFSHORE GRADIENT. WITH MORE MID-WEEK SUN TO WARM WEDNESDAY PM INTO THE LOWER TO MIDDLE 70S. HIGH PRESSURE AT THE SURFACE AND UPPER SOUTHWESTERN U. -BASED RIDGING THROUGH THE END OF THE WEEK WILL GUARANTEE SUBSEQUENT DAY WARMING BACK INTO THE LOWER 80S BY THE WEEKEND WITH CONTINUED LOW TO NIL POPS.
/ISSUED 143 PM CDT Mon Apr 27 2015/ Upper low centered west of Childress will meander around W TX before slowly wobbling to the east. An upper ridge over the western U. will build in behind the low and remain over the area the rest of the week. This ridge will result in warmer and dryer wx for the region. Currently have a strong cold front moving through the area today with a north wind spreading across the CWA. and Tatum should drop into the 30s the next couple of night but expecting they will stay above freezing.
/ISSUED 332 PM CDT MON APR 27 2015/ AN UPPER LEVEL LOW PRESSURE WILL MOVE EAST FROM THE TEXAS PANHANDLE TONIGHT AND ACROSS THE LOWER MISSISSIPPI AND TENNESSEE VALLEYS THROUGH WEDNESDAY. AS THE LOW MAKES ITS CLOSEST APPROACH TUESDAY NIGHT. AS THE UPPER LOW PULLS EAST ON WEDNESDAY.
403 AM CDT TUE APR 28 2015 THE COLD RAIN EVENT WILL WIND DOWN TODAY AS THE UPPER LOW SPINS EAST ACROSS NORTH TEXAS MORE OR LESS MAINTAINING CURRENT INTENSITY. IN THE WAKE OF TODAYS UPPER LEVEL LOW WE WILL BE LEFT WITH RISING HEIGHTS AND TEMPERATURES FOR THE REMAINDER OF THE WEEK WHICH WILL IN TURN LEAD TO WARMING TEMPERATURES.
323 AM CDT TUE APR 28 2015 H5 PATTERN TONIGHT HAS CLOSED LOW PRESSURE OVER THE TX PANHANDLE. RIDGING EXTENDED UP THE WEST COAST OF THE CONUS INTO THE CANADIAN PRAIRIE PROVINCES. DOWNSTREAM OF THE RIDGE. A SHORT WAVE TROUGH OF LOW PRESSURE EXTENDED FROM CENTRAL MANITOBA SWD INTO THE WESTERN DAKOTAS. A COLD FRONT EXTENDED FROM NERN NEBRASKA INTO THE SRN PANHANDLE. HIGH PRESSURE WAS NOTED ACROSS THE WESTERN DAKOTAS AND FAR NWRN NEBRASKA. HIGHS WILL BE IN THE LOWER TO MIDDLE 60S. HIGH PRESSURE WILL PUSH INTO NORTHERN. 00Z DETERMINISTIC DATA CONTINUES TO ADVERTISE THE BREAKDOWN OF AN UPPER LEVEL TRANSITORY RIDGE MID-WEEK.
AN AREA OF LOW PRESSURE OFF THE CALIFORNIA COAST WILL USHER IN DRIER AND COOLER AIR ACROSS THE SOUTHERN HALF OF THE FORECAST AREA THURSDAY.
UPPER LEVEL HIGH WILL BUILD IN FROM THE SE BEGINNING ON THURSDAY AND MOVE EAST OVER THE WEEKEND.