Aikyam-Lab/Synoptic-Bench huggingface dataset:
HIGH PRESSURE AHEAD OF THE DAKOTAS COLD FRONT WILL SHIFT EAST TONIGHT. BUT READING SHOULD REMAIN ABOVE FREEZING. BANDED MOISTURE AND WEAK FORCING WITH THE UPPER TROUGH SHOULD CONTINUE THE SLIGHT CHANCE OF LIGHT SHOWERS ASSOCIATED.
WITH SOME SUNSHINE PEAKING THROUGH THE CLOUDS ACROSS THE PANHANDLE AND FURTHER WEST IN THE HIGH COUNTRY AS DRIER AIR FILTERS INTO THESE LOCATIONS. A FEW SHOWERS ARE DEVELOPING OFF THE HIGHER PEAKS THIS AFTERNOON AND EXPECT LIGHT SHOWERS TO BECOME MORE WIDELY SCATTERED IN COVERAGE THROUGH THE AFTERNOON AS THE DEFORMATION BAND REMAINS OVERHEAD IN ADVANCE OF AN UPPER LEVEL TROUGH APPROACHING FROM THE NORTHWEST. EXPECT PRECIP TYPE TO BE SNOW IN THE MOUNTAINS AND WOULD NOT BE SURPRISED TO SEE SOME SNOW MIX DOWN INTO THE HIGH VALLEYS AND PERHAPS THE WYOMING PLAINS AT TIMES AS WELL. THE UPPER TROUGH WILL MOVE OVER THE FORECAST AREA TONIGHT AND SOUTHEAST OF THE AREA ON TUESDAY. FIRST DEVELOPING IN THE HIGH VALLEYS OUT WEST AS WINDS LIGHTEN AND TEMPS COOL AND THEN OUT EAST WITHIN THE CONTINUED VERY MOIST BOUNDARY LAYER.
A RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE SOUTHERN APPALACHIANS WITH ONLY SOME HIGH CLOUDS ANTICIPATED OVERNIGHT. THE HIGH PRESSURE WILL ALLOW WINDS TO BE LIGHT/CALM OVERNIGHT ALONG WITH MOSTLY CLEAR SKY PRODUCING GOOD RADIATIONAL COOLING CONDITIONS. CHATTANOOGA AIRPORT, TN 47 69 52 62 / 10 30 90 80 KNOXVILLE MCGHEE TYSON AIRPORT, TN 43 66 49 62 / 10 10 70 80 OAK RIDGE, TN 44 66 50 63 / 10 10 60 80 TRI CITIES AIRPORT, TN 37 64 44 62 / 0 10 30 70 TN.
824 PM CDT MON APR 27 2015 A LARGE SHIELD OF RAIN ASSOCIATED WITH A UPPER LOW MEANDERING ACROSS WEST TEXAS WILL CONTINUE TO PIVOT ACROSS THE SOUTH PLAINS REGION TONIGHT. /ISSUED 629 PM CDT MON APR 27 2015/ UPPER LOW LOCATED JUST EAST OF KLBB EARLY THIS EVENING TO MOVE SLOWLY TO THE ESE OVERNIGHT TO A POSITION BTWN KSPS AND KABI BY 12Z TUESDAY. LIGHT TO MODERATE RAIN TO PERSIST THROUGH THE NIGHT WITH LIFT ON THE NORTH AND WEST FLANKS OF THE UPPER LOW.
A WEAK LOW PRESSURE SYSTEM WILL APPROACH THE WEST COAST. THIS LOW WILL BRING COOLER TEMPERATURES AND A GRADUAL INCREASE IN THE NIGHT AND MORNING CLOUDS AND FOG. WINDS WILL BE MUCH WEAKER THE REST OF THE WEEK BUT LINGERING OFFSHORE GRADIENTS AND THE RIDGE ALOFT WILL MAINTAIN TEMPS WELL INTO THE 80S AND SOME LOW 90S AT LEAST FOR THE INLAND AREAS THROUGH THU.
For tomorrow expect mid and upper level clouds to slowly increase ahead of a slow approaching upper low. This low looks to bring a 20-30% chance of rain showers to south central KY late tomorrow night.
LN /ISSUED 252 PM CDT MON APR 27 2015/ CURRENT WATER VAPOR IMAGERY SHOWS THE FORECAST AREA NESTLED IN BETWEEN TWO POTENT UPPER LEVEL LOWS. WEAK UPPER LEVEL RIDGING WAS BUILDING INTO THE AREA. AS THE LOW OVER TEXAS SLOWLY PUSHES EASTWARD. WAS HELPING KEEP TEMPS IN THE LOW TO MID 60S. THE UPPER LOW OVER TEXAS WILL CONTINUE ITS EASTWARD PROGRESSION OVERNIGHT. AS THE UPPER LOW MOVES OVER THE AREA. STILL LOOKS LIKE THERE MAY BE ENOUGH FORCING AS THE TROUGH MOVES INTO THE FORECAST AREA.
A COLD FRONT WILL MOVE THROUGH WESTERN WASHINGTON TUESDAY.
629 PM CDT MON APR 27 2015 UPPER LOW LOCATED JUST EAST OF KLBB EARLY THIS EVENING TO MOVE SLOWLY TO THE ESE OVERNIGHT TO A POSITION BTWN KSPS AND KABI BY 12Z TUESDAY. LIGHT TO MODERATE RAIN TO PERSIST THROUGH THE NIGHT WITH LIFT ON THE NORTH AND WEST FLANKS OF THE UPPER LOW.
928 PM EDT MON APR 27 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.
COLD FRONT WILL THEN MOVE THROUGH SOUTH TEXAS LATE TONIGHT INTO EARLY TUESDAY MORNING. USHERING IN COOLER AND DRIER AIR. WITH TEMPERATURES IN THE LOWER TO MIDDLE 70S. COOL NIGHT IN STORE TOMORROW NIGHT AS TEMPERATURES FALL INTO THE LOWER AND MIDDLE 50S TO NEAR 60 ALONG THE COAST.
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.
A COLD FRONT WILL CROSS THE AREA LATE TUESDAY AFTERNOON AND EVENING. MADE A FEW MINOR CHANGES TO THE LOW TEMPERATURES TONIGHT MAINLY TO ADJUST THEM DOWN A LITTLE.
A closed upper low was nearly stationary over north Texas this afternoon, with a broad rain and cloud shield along its northern and northeast flank across Oklahoma and into southern Kansas. The presence of high clouds would keep low temperatures a few degrees warmer while clear skies would suggest lows in the upper 30s to lower 40s and some potential for valley fog. At this time, would lean toward the slightly cooler temperatures as any clouds look to be very thin and focused over southern Kansas. Tuesday will be slightly warmer in the upper 60s to around 70 with a north breeze and scattered high clouds. Meanwhile a mid/upper ridge builds over the central Rockies and eventually northern plains behind the Great Lakes low.
920 PM EDT MON APR 27 2015 MID-LEVEL CUTOFF LOW OVER THE SOUTHERN PLAINS WILL DRIFT EAST INTO THE LOWER MISSISSIPPI VALLEY TUESDAY WITH WAVES OF ENERGY MOVING ACROSS THE GULF OF MEXICO AND FLORIDA.
THE N EXTENT OF THE LOW CEILINGS/ETC. REMAINING PRECIP ACROSS CENTRAL OK WILL SLOWLY TRANSITION S/SE AS THE H5 LOW TRACKS ALONG THE RED RIVER VALLEY AND THE WARM FRONT DRIFTS BACK SOUTH. WITH A BROAD RIDGE EXTENDED ACROSS THE LENGTH OF THE SRN CONUS. BUT PRECIP CHANCES LOOK POSSIBLE TO RETURN BY MON AS A COLD FRONT MOVES IN OFF THE CENTRAL PLAINS.
1013 PM EDT MON APR 27 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.
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.
625 PM CDT MON APR 27 2015 BROAD HIGH PRESSURE ACROSS THE MIDWEST AND WESTERN GREAT LAKES BROUGHT CLEAR SKIES AND LIGHT N/NE WINDS TO E IOWA/W ILLINOIS THROUGH THIS AFTN. TEMPS WERE IN THE LOW TO MID 60S AND DEWPOINTS WERE IN THE 30S. JUST SLIGHTLY WARMER INTO THE UPPER 60S WITH CONTINUED DRY CONDITIONS.
SCATTERED RAIN SHOWERS WILL DIMINISH OVERNIGHT AS UPPER LEVEL LOW PRESSURE ALONG THE EAST COAST DRIFTS OUT TO SEA.
SHOWERS ARE WINDING DOWN ACROSS SOUTHERN CO AS THE UPPER LOW CONTINUES TO PULL AWAY TO THE EAST INTO TX/OK. SOME RESIDUAL ENERGY DROPPING DOWN THE WEST SIDE OF THE UPPER LOW MAY HELP KEEP SOME ISOLATED SHOWERS GOING ALONG THE CONTINENTAL DIVIDE THROUGH THE NIGHT. THIS MAY HELP TO KEEP TEMPERATURES JUST ABOVE FREEZING FOR NORMAL COLD POCKETS ALONG THE I-25 CORRIDOR. THE PALMER DIVIDE AND RATON RIDGE MAY SEE JUST ENOUGH CLEARING TOWARDS MORNING TO SEE TEMPERATURES HIT THE FREEZING MARK. AND 30S AND 40S FOR THE HIGHER MOUNTAINS.
UPPER LOW CONTINUES TO MAKE SLOW PROGRESS ACROSS THE SRN PLAINS. RAIN SHIELD ON THE NORTH SIDE OF THE LOW CONTINUES TO FLIRT WITH THE KS/OK BORDER. AS DRIER AIR IN THE LOW LAYERS KEEPS ANY PRECIP FROM REACHING INTO KS. KETCHAM TONIGHT-TUE: WILL CONTINUE TO LINGER POPS ALONG OK BORDER TONIGHT AS UPPER LOW SLOWLY DRIFTS EAST. LOWS SHOULD BE SLIGHTLY COOLER IN NORTH WITH LESS CLOUDS AND DRIER AIR. RIDGING WILL BE THE RULE ON FRI-SAT. -HOWERTON LARGE UPPER LOW CONTINUES TO MAKE SLOW PROGRESS ACROSS SW OK AT THIS TIME. WITH A LARGE EXPANSE OF SHRA TO THE NORTH OF THIS LOW.
705 PM EDT MON APR 27 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.
1159 PM EDT MON APR 27 2015 AVIATION HIGH PRESSURE WILL BRING CLEARING SKIES AND DIMINISHING WINDS TONIGHT.
1118 PM CDT MON APR 27 2015 HIGH PRESSURE TO OUR NORTH THIS EVENING WILL CONTINUE TO BRING QUIET WEATHER TO THE REGION FOR THE NEXT SEVERAL DAYS. ALL THE ACTIVE WEATHER IS LOCATED OVER THE SOUTHERN PLAINS AS AN UPPER LEVEL STORM SLOWLY TRACKS EAST INTO THE LOWER MISSISSIPPI VALLEY OVER THE NEXT SEVERAL DAYS. HIGH PRESSURE DOMINATING CENTRAL ILLINOIS AGAIN FOR TONIGHT. NORTHERLY WINDS WILL BECOME LIGHT AND SOMEWHAT VARIABLE TONIGHT AS THE RIDGE AXIS MOVES OVER THE REGION.
LINGERING ON THE BACKSIDE OF A LOW PRESSURE SYSTEM CURRENTLY LOCATED OVER NORTHERN TEXAS. A MUCH WARMER DAY TODAY.
THE GREATEST RISK FOR FROST WILL LIKELY BE ACROSS MUCH OF NORTHERN INDIANA INTO SOUTHWESTERN LOWER MICHIGAN AS LOWS FALL INTO THE LOWER TO MIDDLE 30S. TEMPERATURES WILL REBOUND ON TUESDAY WITH HIGHS REACHING INTO THE LOWER 60S IN MOST LOCATIONS. AREAS ALONG THE LAKE SHORE WILL SEE MUCH COOLER READING. 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.
Despite low temperatures in our cold spots in the low-mid 30s yesterday, we did not receive any frost reports here (not to say it didn't happen). For tomorrow expect mid and upper level clouds to slowly increase ahead of a slow approaching upper low. This low looks to bring a 20-30% chance of rain showers to south central KY late tomorrow night.
/ISSUED 927 PM CDT MON APR 27 2015/ THE BROAD AREA OF LIGHT RAIN CONTINUES TO ROTATE AROUND THE UPPER LOW AND WILL AFFECT MORE NORTHERN OKLAHOMA MUCH OF THE NIGHT. SHOWERS MAY REDEVELOP UNDER THE CENTER OF THE LOW OVER SOUTHWEST OKLAHOMA BEFORE MORNING.
THE UPPER LOW RESPONSIBLE FOR DISTURBANCES CAUSING THE PERIODIC SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE ARKLATEX EASRLY TUESDAY AFTERNOON AND 24 HOURS FROM NOW WILL BE LIFTING ACROSS THE MISSISSIPPI RIVER, WITH IMPROVING CONDITIONS BEYOND. THE PESKY UPPER LEVEL LOW OVER NORTHWEST TEXAS IS PROGGED TO SLIDE EAST INTO THE ARKLATEX BY TUESDAY AFTERNOON. UPPER LEVEL DISTURBANCES AROUND THE UPPER LOW ARE EXPECTED TO SET OFF INSTABILITY SHOWERS AND THUNDERSTORMS AROUND AEX. THE UPPER LOW PASSAGE TUESDAY EVENING WILL SPELL AN END TO THIS UNSTABLE AND INCLEMENT PATTERN. COOLER AND DRIER AIR WILL EVENTUALLY PUT AN END TO THE SVR WX AND PRECIP. EXPECTED LOWS IN THE LOWER 50S. DRAGGING A COLD FRONT THROUGH THE COASTAL WATERS.
943 PM MDT MON APR 27 2015 AS THE RECENT LOW PRESSURE SYSTEM CONTINUES TO TRACK EASTWARD ACROSS TX. A RIDGE OF HIGH PRESSURE BUILDS OVER THE INTERMOUNTAIN WEST ON TUESDAY.
AN UPPER LEVEL LOW PRESSURE SYSTEM WILL SHIFT SLOWLY EAST TO THE LOWER MISSISSIPPI VALLEY BY LATE TUESDAY NIGHT.
927 PM CDT MON APR 27 2015 THE BROAD AREA OF LIGHT RAIN CONTINUES TO ROTATE AROUND THE UPPER LOW AND WILL AFFECT MORE NORTHERN OKLAHOMA MUCH OF THE NIGHT. SHOWERS MAY REDEVELOP UNDER THE CENTER OF THE LOW OVER SOUTHWEST OKLAHOMA BEFORE MORNING.
733 PM EDT MON APR 27 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.
1135 PM CDT MON APR 27 2015 THE FORECAST AREA WAS LOCATED UNDER A SHORT WAVE RIDGE EARLY THIS AFTERNOON WITH MAIN WEATHER FEATURES WELL NORTH AND SOUTH OF THE AREA. THIS TREND IS EXPECTED TO CONTINUE THROUGH TUESDAY WITH A NORTHERN STREAM TROUGH LIFTING TOWARD THE GREAT LAKES AND SOUTHERN STREAM CLOSED LOW TRACKING TOWARD THE LOWER MISSISSIPPI VALLEY. HAVE INCLUDED A SLIGHT POP FOR NORTHWESTERN PARTS OF THE AREA TUESDAY AFTERNOON AS TRAILING END OF THE UPPER TROUGH MOVES ACROSS BUT INSTABILITY AND MOISTURE LOOK TO BE QUITE LIMITED.
ADDITIONAL WAVES OF SHWRS/TSTMS MAY CONTINUE THROUGH THE DAY ON TUESDAY AS A SLOW MOVING UPPER LOW FINALLY BEGINS TO EJECT OUT OF THE TX PANHANDLE ALONG 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. ANOTHER DISTURBANCE EMBEDDED WITHIN THE MAIN UPPER LOW HAS GENERATED CONVECTION. SOME OF THESE STORMS COULD BECOME SEVERE GIVEN THE DEEP LAYER FORCING AND STRONG ISENTROPIC LIFT AHEAD OF THE UPPER LOW. THE UPPER LOW IS FCST TO MOVE DIRECTLY OVHD. DRIVING A COLD FRONT THROUGH THE REGION AND EFFECTIVELY ENDING THUNDER FOR THE REGION. MOISTURE WILL WRAP AROUND THE UPPER LOW AND KEEP SHWRS IN MAINLY OVER THE NRN HALF OF THE ARKLATEX UNTIL THE UPPER LOW FINALLY MOVES E OF THE REGION LATE TUESDAY NIGHT.
1018 PM EDT MON APR 27 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.
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.
1117 PM CDT MON APR 27 2015 SATELLITE DATA THIS EVENING SHOWS A NICE LOOKING UPPER LOW SPIRALING OVER NORTHWEST TEXAS. WE WILL CONTINUE MAINTAIN CHANCE OF SHOWERS AND ISOLATED STORMS OVERNIGHT DUE TO THE PROXIMITY OF THE UPPER LOW.
THE LOW PRESSURE SYSTEM ACROSS TEXAS IS EXPECTED TO DRIFT TO THE EAST ALLOWING WINDS TO TURN MORE TOWARD THE NORTH OVERNIGHT. TEMPERATURES WILL BE A LITTLE WARMER TONIGHT.
MOST OF THE RAIN HAS ENDED THIS EVENING AND A LULL IN THE ACTIVITY IS EXPECTED UNTIL CLOSE TO MORNING WHEN THE UPPER LEVEL LOW OVER TEXAS DRAWS CLOSER AND HELPS DEVELOP ANOTHER ROUND OF RAIN WITH A FEW THUNDERSTORMS. TAF SITES WILL DEVELOP MVFR/IFR CONDITIONS THROUGH TUESDAY MORNING WITH WIDESPREAD RAIN AND A FEW TSTMS AS AN UPPER LEVEL LOW MOVES ACROSS THE REGION. THIS ALL COMES AHEAD OF A DEVELOPING LOW IN THE GULF OF MEXICO AND A CUTOFF UPPER LOW OVER NORTH CENTRAL TEXAS. MODELS CONTINUE TO INDICATE THAT THIS LOW WILL DEVELOP THROUGH TONIGHT AND TRACK TO THE EAST THROUGH THE DAY TOMORROW. THE UPPER LOW WILL ALSO TRACK TO THE EAST TOMORROW AND TOMORROW NIGHT OVER NORTHERN MISSISSIPPI/MID-SOUTH.
/ISSUED 346 PM CDT MON APR 27 2015/ UPPER LEVEL LOW OVER THE NORTHERN SOUTH PLAINS WILL CONTINUE TO MOVE EAST INTO SOUTHERN OKLAHOMA/NORTHERN TEXAS TONIGHT.
900 PM MST MON APR 27 2015 A WARMING TREND WILL CONTINUE THROUGH THE WEEK AS HIGH PRESSURE BUILDS INTO THE REGION.
932 PM CDT MON APR 27 2015 UPPER LOW CONTINUES TO MAKE SLOW PROGRESS ACROSS THE SRN PLAINS. RAIN SHIELD ON THE NORTH SIDE OF THE LOW CONTINUES TO FLIRT WITH THE KS/OK BORDER. AS DRIER AIR IN THE LOW LAYERS KEEPS ANY PRECIP FROM REACHING INTO KS. KETCHAM TONIGHT-TUE: WILL CONTINUE TO LINGER POPS ALONG OK BORDER TONIGHT AS UPPER LOW SLOWLY DRIFTS EAST. LOWS SHOULD BE SLIGHTLY COOLER IN NORTH WITH LESS CLOUDS AND DRIER AIR. RIDGING WILL BE THE RULE ON FRI-SAT. -HOWERTON LARGE UPPER LOW CONTINUES TO MAKE SLOW PROGRESS ACROSS SW OK AT THIS TIME. WITH A LARGE EXPANSE OF SHRA TO THE NORTH OF THIS LOW.
619 PM CDT Mon Apr 27 2015 All regional precipitation was confined to Oklahoma and southern Kansas today as an upper level low was gradually shifting across the Texas Panhandle. The center of this low is expected to track directly over the Red River Valley, which will limit rain from affecting southern Missouri the rest of today and into Tuesday. Therefore, for the exception of areas along the Arkansas border, we expect dry weather through Tuesday despite cloud cover and cooler temperatures.
906 PM EDT MON APR 27 2015 UPDATE HIGH PRESSURE WILL BRING CLEARING SKIES AND DIMINISHING WINDS TONIGHT.
TEMPERATURES HAVE ALREADY SOARED INTO THE LOW 90S ALONG THE EAST COAST METRO AREAS AND INTO THE MID 90S ACROSS THE INTERIOR. A WEAK COLD FRONT IS POSITIONED ACROSS CENTRAL FLORIDA AND IS SLOWLY MOVING TO THE SOUTH. THE FRONT IS THEN EXPECTED TO PUSH BACK TO THE NORTH AS A WARM FRONT BY TUESDAY AS A POSITIVELY TILTED H5 TROUGH MOVES EAST AND INTO THE LOWER MISSISSIPPI VALLEY.
633 PM CDT MON APR 27 2015 FOR 00Z TAFS /ISSUED 252 PM CDT MON APR 27 2015/ CURRENT WATER VAPOR IMAGERY SHOWS THE FORECAST AREA NESTLED IN BETWEEN TWO POTENT UPPER LEVEL LOWS. WEAK UPPER LEVEL RIDGING WAS BUILDING INTO THE AREA. AS THE LOW OVER TEXAS SLOWLY PUSHES EASTWARD. WAS HELPING KEEP TEMPS IN THE LOW TO MID 60S. THE UPPER LOW OVER TEXAS WILL CONTINUE ITS EASTWARD PROGRESSION OVERNIGHT. AS THE UPPER LOW MOVES OVER THE AREA. STILL LOOKS LIKE THERE MAY BE ENOUGH FORCING AS THE TROUGH MOVES INTO THE FORECAST AREA.
1152 PM CDT Mon Apr 27 2015 All regional precipitation was confined to Oklahoma and southern Kansas today as an upper level low was gradually shifting across the Texas Panhandle. The center of this low is expected to track directly over the Red River Valley, which will limit rain from affecting southern Missouri the rest of today and into Tuesday. Therefore, for the exception of areas along the Arkansas border, we expect dry weather through Tuesday despite cloud cover and cooler temperatures.
MAINLY OVER THE HIGHER TERRAIN WHERE SUFFICIENT INSTABILITY EXISTS. OTHERWISE HIGH TEMPERATURES SHOULD BE ABLE TO CLIMB BACK INTO THE LOWER TO MID 60S WITH MORE SUNSHINE RETURNING.
OVERNIGHT LOWS SHOULD RANGE FROM THE 30S OVER NW WISCONSIN AND THE ARROWHEAD TO THE LOW 40S OVER THE WESTERN FORECAST AREA. THERE SHOULD BE CLEARING SKIES IN THE AFTERNOON AS HIGH PRESSURE BEGINS TO BUILD INTO THE REGION IN THE WAKE OF THE PASSING COLD FRONT. HIGH TEMPERATURES WILL PRIMARILY BE IN THE LOW TO MIDDLE 60S. MID-LEVEL RIDGE WILL GRADUALLY MOVE EAST ACROSS THE NORTHERN PLAINS INTO THE UPPER MIDWEST THROUGH THE LATTER HALF OF THE WORK WEEK.
1049 PM CDT MON APR 27 2015 A MID TO UPPER LEVEL LOW CHURNING EASTWARD OUT OF THE TEXAS PANHANDLE WITH A COLDER AIR MASS ROTATING AROUND ITS WESTERN FLANK AND PUSHING A COLD FRONTAL BOUNDARY TO THE EASTERN EDGE OF THE EDWARDS PLATEAU. THIS LOW TO MID-LEVEL BOUNDARY THE FOCUS FOR LATE AFTERNOON CONVERGENCE. AHEAD OF THE COLD FRONT. THE UPPER LOW WILL BE EAST OF THE NE TX BY TOMORROW NIGHT.
942 PM EDT MON APR 27 2015 AN UPPER LEVEL LOW WILL PROVIDE UNSETTLED WEATHER AND CLOUDS THROUGH MIDWEEK AS IT MEANDERS NEARBY. SHOWERS CONTINUE TO PERSIST ACROSS SOUTHERN MAINE AND THE UPPER LEVEL LOW CONTINUES TO IMPACT THE AREA. LOW TEMPERATURES WILL RANGE FROM MID 30S TO THE LOWER 40S. THE UPPER LOW WILL SHIFT A BIT FURTHER EAST. CLOUDS LINGER TUESDAY NIGHT ALONG WITH A FEW STRAY SHOWERS OR FLURRIES AS THE LOW REMAINS NEARLY STATIONARY OFFSHORE. MEAN LOW PRESSURE WILL CONTINUE TO MEANDER AROUND OUR REGION THROUGH MUCH OF THE FORECAST PERIOD. STRONG LOW PRESSURE IS EXPECTED TO DEVELOP OFF THE MID ATLANTIC COAST LATE THIS WEEK. SCA CONDITIONS MAY DEVELOP LATE IN THE WEEK AND THE WEEKEND AS LOW PRESSURE PASSES WELL SOUTH OF THE WATERS.
TONIGHT-TUE: WILL CONTINUE TO LINGER POPS ALONG OK BORDER TONIGHT AS UPPER LOW SLOWLY DRIFTS EAST. LOWS SHOULD BE SLIGHTLY COOLER IN NORTH WITH LESS CLOUDS AND DRIER AIR. RIDGING WILL BE THE RULE ON FRI-SAT. -HOWERTON LARGE UPPER LOW CONTINUES TO MAKE SLOW PROGRESS ACROSS SW OK AT THIS TIME. WITH A LARGE EXPANSE OF SHRA TO THE NORTH OF THIS LOW.
900 PM PDT Mon Apr 27 2015 High pressure will bring mainly dry weather and above normal temperatures to the area through the week.
850 PM CDT MON APR 27 2015 HIGH PRESSURE TO OUR NORTH THIS EVENING WILL CONTINUE TO BRING QUIET WEATHER TO THE REGION FOR THE NEXT SEVERAL DAYS. ALL THE ACTIVE WEATHER IS LOCATED OVER THE SOUTHERN PLAINS AS AN UPPER LEVEL STORM SLOWLY TRACKS EAST INTO THE LOWER MISSISSIPPI VALLEY OVER THE NEXT SEVERAL DAYS. HIGH PRESSURE DOMINATING CENTRAL ILLINOIS AGAIN FOR TONIGHT. NORTHERLY WINDS WILL BECOME LIGHT AND SOMEWHAT VARIABLE TONIGHT AS THE RIDGE AXIS MOVES OVER THE REGION.
648 PM CDT MON APR 27 2015 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.
A MID LEVEL RIDGE IS IN PLACE ACROSS PARTS OF THE UPPER MS VALLEY REGION. MEANWHILE A CLOSED LOW IS ROTATING ACROSS THE SOUTHERN PLAINS. HIGH PRESSURE IS CENTERED NORTH OF THE GREAT LAKES WITH RIDGING EXTENDING SOUTH AND SOUTHEAST INTO THE OH AND TN VALLEYS. WITH SEVERAL AREAS IN THE LOWER 30S. RIDGING SHOULD DOMINATE INTO TUESDAY EVENING.
608 PM CDT MON APR 27 2015 HIGH PRESSURE DOMINATING CENTRAL ILLINOIS AGAIN FOR TONIGHT. NORTHERLY WINDS WILL BECOME LIGHT AND SOMEWHAT VARIABLE TONIGHT AS THE RIDGE AXIS MOVES OVER THE REGION.
609 PM CDT MON APR 27 2015 THE FORECAST AREA WAS LOCATED UNDER A SHORT WAVE RIDGE EARLY THIS AFTERNOON WITH MAIN WEATHER FEATURES WELL NORTH AND SOUTH OF THE AREA. THIS TREND IS EXPECTED TO CONTINUE THROUGH TUESDAY WITH A NORTHERN STREAM TROUGH LIFTING TOWARD THE GREAT LAKES AND SOUTHERN STREAM CLOSED LOW TRACKING TOWARD THE LOWER MISSISSIPPI VALLEY. HAVE INCLUDED A SLIGHT POP FOR NORTHWESTERN PARTS OF THE AREA TUESDAY AFTERNOON AS TRAILING END OF THE UPPER TROUGH MOVES ACROSS BUT INSTABILITY AND MOISTURE LOOK TO BE QUITE LIMITED.
155 PM EDT SUN JUL 19 2015 MORE SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY OUT AHEAD OF APPROACHING COLD FRONT WHICH WILL CROSS THE REGION OVERNIGHT.
AGAIN TODAY RIDGING ALOFT AND A POCKET OF WARM MID LEVEL TEMPERATURES HAVE PRECLUDED THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS FOR MOST OF OUR CWA.
TONIGHT AND MONDAY NARROW HIGH PRESSURE WAS RIDGING FROM NEBRASKA TO SOUTHERN WISCONSIN TODAY. LOCALLY A TROUGH OF LOW PRESSURE WAS SLIDING OVER THE GREAT LAKES REGION EARLY TODAY. BEST LOW LEVEL LAPSE RATES ORIGINATING OVER UPPER MICHIGAN AND FAR NORTHERN WISCONSIN CLOSER TO THE TROUGH. WEAK UPPER RIDGING BUILDS INTO THE AREA EARLY THIS EVENING PRIOR TO ANOTHER SHORT WAVE TROUGH TO APPROACH FROM SOUTHERN CANADA LATE TONIGHT INTO MONDAY. A COLD FRONT AND REINFORCING SHOT OF COOL DRY AIR ASSOCIATED WITH THE TROUGH IS TRACKING A BIT FASTER. MONDAY NIGHT THROUGH SUNDAY AFTER A COLD FRONT DEPARTS THE REGION MONDAY.
RIDGING ALOFT STILL EXPECTED TO WEAKEN AS THE MAIN HIGH PRESSURE CENTER SHIFTS MORE WESTWARD. AREA WILL FALL ON THE EASTERN PORTION OF THE RIDGE IN A FAVORABLE MOISTURE POOLING REGION. A BROAD RIDGE OF HIGH PRESSURE OVER MUCH OF THE NORTHERN GULF WILL MAINTAIN A LIGHT TO MODERATE SOUTHWESTERLY FLOW OVER THE MARINE AREA THROUGH MUCH OF THE WEEK.
EXPECT LIGHT SOUTHWEST WINDS TO DIMINISH TO 5 MPH OR LESS WITH LOWS IN THE LOWER TO MID 70S. WITH OFFSHORE FLOW IN THE MORNING AND CONVECTIVE DEVELOPMENT PROBABLY HOLDING OFF UNTIL LATER IN THE AFTERNOON ACROSS CENTRAL AREAS SHOULD SEE HIGHS INTO THE LOWER 90S.
137 PM EDT SUN JUL 19 2015 A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE LOCAL AREA THIS AFTERNOON AND EVENING.
100 PM CDT SUN JUL 19 2015 UPDATED FOR 18Z AVIATION DISCUSSION BELOW MUCH QUIETER AND COOLER MORNING ACROSS THE UPPER MIDWEST WITH A COLD FRONT JUST EAST OF THE AREA. WHICH HAS ANOTHER WEAK COLD FRONT EXTENDING SOUTHWEST TO SOUTHERN MANITOBA. ANOTHER COLD FRONT IS JUST MOVING OUT OF THE HIGHER TERRAIN OF ALBERTA.
SLIGHTLY COOLER. AN ACTIVE ZONAL FLOW PATTERN THIS WEEK WITH ONE UPPER TROUGH TO APPROACH THE PANHANDLES FROM THE CENTRAL AND SOUTHERN ROCKIES LATER TODAY AND TONIGHT. AND THEN A SECOND UPPER TROUGH LATE MONDAY AND MONDAY NIGHT.
1252 PM CDT SUN JUL 19 2015 HIGH PRESSURE CENTERED OVER THE ROCKIES HAS SPRAWLED EASTWARD ENCOMPASSING MUCH OF THE NORTHERN PLAINS AND UPPER MIDWEST. DEW POINTS HAVE FALLEN INTO THE 50S OVERNIGHT WITH THE ARRIVAL OF THE DRIER CONTINENTAL AIRMASS ACCOMPANYING THE HIGH. A PIECE OF ENERGY FROM THE SOUTHWEST MONSOON WILL EJECT EASTWARD AND EVENTUALLY GET CAUGHT UP ON THE SOUTHERN PERIPHERY OF THE CANADIAN TROUGH. THE LONGER TERM INITIALLY HAS A COLD FRONT EXITING THE CWA MONDAY MORNING WITH A COUPLE OF MAINLY DRY DAYS FOLLOWING. MILD AND SOMEWHAT COOLER THROUGH ABOUT MIDWEEK. THEN TRENDING WARMER INTO THE WEEKEND. MODELS HAVE TRENDED A BIT FASTER WITH THE COLD FRONT FOR MONDAY.
THIS SHOULD ALLOW LOWS TO DROP INTO THE LOWER TO MID 60S PER SHORT TERM BLENDED MODEL GUIDANCE. WITH THE COLD FRONT LAGGING BEHIND IT SOMEWHAT.
EXPECTING SCATTERED TO NUMEROUS SHOWERS AND STORMS DEVELOPING OVER AND NEAR THE HIGHER TERRAIN LATE THIS MORNING AND AFTERNOON. WITH STORMS MOVING OFF THE HIGHER TERRAIN AND ACROSS THE EASTERN PLAINS THROUGH THE AFTERNOON AND EVENING AND ROLLING OUT INTO WESTERN KANSAS THROUGH THE OVERNIGHT HOURS. HIGHS TO BE SLIGHTLY COOLER THAN PREVIOUS DAYS WITH MILD OVERNIGHT LOWS.
ISSUED AT 213 CDT SUN JUL 19 2015 DURING THE LONGER TERM WE/LL SEE THE UPPER LOW CURRENTLY CENTERED TO OUR NORTH RETREAT NORTHWARD AS RIDGING BUILDS OVER THE CENTRAL CONUS INTO CENTRAL CANADA BY MIDWEEK. WITH TROUGHING OVER ALASKA/NORTHWEST CANADA AND QUEBEC AND THE NORTHEAST CONUS. ALTHOUGH THE MEAN RIDGE POSITION WON/T CHANGE MUCH BY THE WEEKEND.
337 PM EDT SUN JUL 19 2015 A COLD FRONT WILL PUSH OFFSHORE TONIGHT WITH SHOWERS AND THUNDERSTORMS AHEAD OF IT. HIGH PRESSURE WILL BUILD IN FROM THE WEST ON MONDAY.
NOR AT THE LOWER LEVELS. 41 NO ISSUES AS HIGH PRESSURE REMAIN IN PLACE.