Aikyam-Lab/Synoptic-Bench huggingface dataset:
321 PM EDT SAT SEP 12 2015 DEEP TROUGH REMAINS ANCHORED OVER THE OHIO RIVER VALLEY THIS AFTERNOON WITH THE COLDEST AIR OF THE SEASON WELL ENTRENCHED ACROSS THE AREA. ACTIVITY WILL SLOWLY DIMINISH BY LATE EVENING AND OVERNIGHT AS HIGH PRESSURE BEGINS TO WORK IN FROM THE WEST. HIGH PRESSURE WILL MAKE EVEN MORE PROGRESS ON SUNDAY WITH SKIES CLEARING. UPPER LEVEL RIDGING WILL BEGIN TO TAKE HOLD OF THE REGION TO START OFF THE EXTENDED. THIS UPPER LEVEL RIDGE WILL EXPAND AND STRENGTHEN THROUGH MID WEEK. THE UPPER LEVEL RIDGING WILL BEGIN TO BREAK DOWN.
A disorganized area of low pressure remains off the coast, with high pressure centered over the Great Basin. Temperatures across the forecast area are running considerably cooler than yesterday, owing largely to increased cloud cover.
100 PM CDT SAT SEP 12 2015 QUIET WEATHER CONTINUES TODAY AS COOL HIGH PRESSURE PREVAILS OVERHEAD. MIXING TO ABOUT 900 MB SUNDAY SHOULD BRING HIGHS ABOUT 10 DEGREES WARMER OVER TODAY.
THESE WINDS WILL DEVELOP AS COOLER AND DRIER AIR MOVES OVER THE WARMER LAKE WATERS AND EASILY TRANSPORTS DOWN STRONGER BOUNDARY LAYER WINDS FROM ALOFT TO THE SURFACE.
The upper-levels across the eastern CONUS are dominated by an amplified longwave trough. Within this trough is a +PV anomaly moving out of the Middle Mississippi Valley and an elongated area of +PV from the northwestern Gulf coast up the Appalachian chain. At the surface, and locally, a cold front is draped from Panama City Beach, through Camilla, and Cordele. This will increase the northerly flow, tighten the temperature gradients and force the cooler and drier air into the region under a CAA regime. Expect overnight lows to range from the upper 50s across southeast Alabama, to the low 60s from Panama City through Tallahassee and Valdosta, to the upper 60s across the southeast Big Bend.
202 PM EDT SAT SEP 12 2015 AN APPROACHING COLD FRONT WILL MOVE THROUGH THE FORECAST AREA THIS EVENING.
135 PM EDT SAT SEP 12 2015 AN UPPER LEVEL TROUGH OVER THE AREA WILL SLOWLY MOVE OFF TO THE EAST THROUGH SUNDAY.
AN UPPER LEVEL SHORT WAVE TROUGH WILL TRAVERSE THE AREA SUNDAY AND SUNDAY NIGHT WHICH WILL COMBINE WITH THE LOW LEVEL MOISTURE AND INSTABILITY TO HELP PRODUCE SOME SHOWERS AND THUNDERSTORMS. UPPER LEVEL RIDGE ACROSS THE WESTERN U.
249 PM EDT SAT SEP 12 2015 UPPER LOW MOVES ACROSS TONIGHT INTO SUNDAY WITH UNSEASONABLY COOL WEATHER. HIGH PRESSURE FOR MUCH OF NEXT WORK WEEK. 5H TROF AXIS TO SWING THROUGH THE FORECAST AREA TONIGHT INTO SUNDAY. AS VORTICITY MAX ROUNDS OUT BASE OF TROF IN CYCLONIC FLOW OVER WESTERN VA TONIGHT. SHALLOW STRATCU ON BACKSIDE OF TROF. HIGH PRESSURE WILL BUILD OVER THE REGION SUNDAY NIGHT AND REMAIN THROUGH MOST OF THE WORK WEEK.
A COLD FRONT WILL MOVE INTO SE GA THIS EVENING. COOLER AIR WILL FILTER IN BEHIND THE FRONT. WITH LOWS IN THE LOWER/MID 60S FOR MOST OF SE GA. LOW TEMPS AROUND 10 DEGREES WARMER AT THE COAST DUE TO A NNE FLOW OFF THE WARMER OCEAN.
314 PM CDT SAT SEP 12 2015 COOLER AND DRIER AIR HAS ALREADY BEGUN MOVING INTO THE AREA. DEWPOINTS CURRENTLY RANGE FROM UPPER 50S TO UPPER 60S ACROSS THE AREA AND TEMPS SITTING IN THE LOWER 80S. SUNDAY NIGHT SHOULD BE A COUPLE DEGREES COOLER THAN TONIGHT. AM CARRYING LOW TO MID 50S THROUGH THE PEARL AND PASCAGOULA DRAINAGE AREAS WHICH IS ON THE HIGHER SIDE OF.
324 PM CDT SAT SEP 12 2015 AS THE LONGWAVE TROUGH CONTINUES TO DIG ACROSS THE SOUTHEASTERN PORTIONS OF THE CONUS. HIGH PRESSURE WILL GRADUALLY WORK ITS WAY ACROSS THE MIDDLE MISSISSIPPI RIVER VALLEY AND ALLOW BREEZY AND AT TIMES GUSTY SOUTHERLY WINDS TO RETURN TO CENTRAL AND SOUTHEAST KANSAS.
240 PM CDT SAT SEP 12 2015 Vorticity maximum centered between Springfield and Decatur this afternoon per water vapor imagery, within the deep upper trough that covers much of the Midwest. Drier air in the lower levels have resulted in a bit of small hail accompanying the heavier showers. Series of weak vort maxes/lobes in the mid MS river valley rotating through the bottom of the trof, with main max near Quad Cities moving SSE. Models drift the upper trof to the east into Sunday, allowing warming low and mid level flow to begin to work into state. Upper ridge begins to build toward area and slow warming trend into midweek.
347 PM EDT SAT SEP 12 2015 AN UPPER LEVEL LOW WILL PROVIDE MUCH COOLER TEMPERATURES THIS WEEKEND.
THE MAIN UPPER TROUGH OVER THE GREAT LAKES WILL CONTINUE TO PULL FURTHER AWAY FROM OUR REGION. EVEN WITH CLEAR SKIES WE SHOULD HAVE SOME DECENT MIXING WITH SOUTHWEST WINDS AT THE SURFACE THANKS TO A TROUGH DIGGING INTO EASTERN MONTANA. A COLD FRONT WILL BE MOVING INTO NORTHWESTERN PARTS OF THE STATE. BUT OUR CWA WILL REMAIN FIRMLY IN THE WARM SECTOR WITH 850MB TEMPS IN THE LOW 20S C. THE COLD FRONT WILL COME DOWN INTO THE NORTHWESTERN COUNTIES SUNDAY NIGHT AND DROP READINGS BACK BELOW 50.
652 PM EDT SAT SEP 12 2015 LOW PRESSURE APPROACHES FROM THE SOUTHWEST THIS EVENING AND THEN LIFTS NORTHEAST ALONG A FRONTAL BOUNDARY. HIGH PRESSURE BUILDS EAST FOR THE UPCOMING WEEK. SE FLOW MAY GUST UP TO 20 MPH THIS EVENING AS THE GRADIENT WINDS TIGHTEN AHEAD OF THE LOW. WINDS WILL THEN RAMP DOWN AS WEAK LOW PRESSURE RESIDES OVER THE AREA. OVERNIGHT LOWS WILL RANGE FROM THE LOWER 60S INLAND. ANOTHER WEAK FRONTAL WAVE REMAINS ACROSS THE AREA ON SUN IN RESPONSE TO A DIGGING UPPER TROF APPROACHING FROM THE OH AND TN VALLEYS. LIFT ASSOCIATED WITH THE INCOMING UPPER TROF SHOULD BE SUFFICIENT FOR WIDESPREAD SHOWERS. THE LOW COOLER CONDITIONS WORKING INTO THE AREA.
726 AM EDT MON APR 27 2015 A TROUGH WILL MOVE SOUTH ACROSS THE EASTERN GREAT LAKES TODAY.
921 AM EDT MON APR 27 2015 A SURFACE COLD FRONT CONTINUES TO NUDGE SOUTH. WITH PERHAPS SOME ADDITIONAL SHOWERS FORMING ALONG THE COLD FRONT AS IT MOVES SOUTH ACROSS NE FL. NE LOW LEVEL FLOW WILL RESULT IN COOLER HIGH TEMPERATURES. MVFR/AREAS OF IFR CONDITIONS ARE DEVELOPING AS A COLD FRONT MOVES SOUTH INTO NE FLORIDA.
610 AM CDT MON APR 27 2015 HIGH PRESSURE FROM WESTERN HUDSON BAY INTO NEBRASKA WILL MOVE LITTLE TODAY WITH LITTLE CHANGE IN THE WEATHER FROM YESTERDAY.
CHATTANOOGA AIRPORT, TN 47 70 52 64 / 10 40 70 60 KNOXVILLE MCGHEE TYSON AIRPORT, TN 42 67 48 63 / 10 10 50 60 OAK RIDGE, TN 43 67 48 63 / 10 10 50 60 TRI CITIES AIRPORT, TN 37 65 45 61 / 0 10 30 60.
/ISSUED 359 AM CDT MON APR 27 2015/ AS THE UPPER LOW NEARS THE AREA TODAY WE WILL SEE MORE WIDESPREAD RAIN SHOWER AND THUNDERSTORM CHANCES. THIS LOW WILL TRACK DIRECTLY OVER THE AREA TODAY. THE MAIN DEFORMATION ZONE FROM THIS LOW WILL BE LOCATED TO THE NORTH OF THE AREA IN THE TEXAS PANHANDLE. COOL AND DAMP LOWER ATMOSPHERE EARLY TUESDAY ON THE BACK-SIDE OF THE DEPARTING UPPER LOW ALONG THE RED RIVER TO OUR EAST. AIRMASS WILL GRADUALLY DRY LATER TUESDAY AS THE UPPER LOW PULLS FURTHER TO THE EAST.
MUCH COOLER AND DRIER AIR IN PLACE THIS MORNING AS THE COLD FRONT THAT PASSED THROUGH THE REGION YESTERDAY IS LOCATED GENERALLY OFFSHORE. HIGHS TODAY WILL BE MUCH COOLER THAN THIS PAST WEEKEND THANKS TO THE FROPA AND ABUNDANT CLOUD COVER. /15/ CONSENSUS OF THE GLOBAL MODELS IS FOR THE UPPER LOW TO OPEN UP AND MOVE EAST OF THE ARKLAMISS.
MORNING FORECAST APPEARS TO BE IN PRETTY GOOD SHAPE AS THE UPPER RIDGE CONTINUES TO BUILD INTO THE NORTHERN ROCKIES TODAY. REMAINDER OF THE FORECAST LOOKS TO BE ON TRACK WITH WARMER CONDITIONS AND MOSTLY CLEAR TO PARTLY CLOUDY SKIES EXPECTED FOR THE NEXT DAY OR TWO. FEW TO SCATTERED THIN HIGH CLOUDS ARE EXPECTED THIS MORNING WITH CLEARING SKIES BY MIDDAY AS A RIDGE OF HIGH PRESSURE BUILDS INTO THE REGION.
946 AM MDT MON APR 27 2015 MID LEVEL DRYING IS WORKING WESTWARD INTO SOUTHEAST CO AROUND THE NRN PERIPHERY OF THE CLOSED LOW. STILL LIKELY TO SEE SOME HEALTHY SNOWFALL RATES THIS MORNING ACROSS THE HIGHER ELEVATIONS OF THE SOUTHEAST MOUNTAINS. \/HODANISH WEAK TROUGHINESS WILL BE OVER THE REGION AS MAIN LOW MOVES OFF TO OUR SOUTHEAST. TEMPS TONIGHT WILL BE ON THE COOL SIDE WITH SOME AREAS ON THE PLAINS TOUCHING THE FREEZING MARK.
AS WE HEAT UP AND THE UPPER LOW NEAR WICHITA FALLS CONTINUES TO TREK EAST THIS SHOULD PLACE SETX IN A FAVORABLE REGION FOR SEVERE WEATHER WITH SYNOPTIC SCALE LIFT. COLD FRONT SHOULD ARRIVE IN THE HOUSTON AREA AFTER 2 AM WITH MODERATE COLD ADVECTION. THE HIGH RESOLUTION HRRR MODEL AGREED WITH THE GLOBAL MODELS IN MOVING THE CURRENT CONVECTION EAST OF THE AREA WHILE POSSIBLY DEVELOPING MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON AS THE UPPER LOW IN NM MOVES INTO THE SOUTHERN PLAINS. AT LEAST MVFR CONDITIONS ARE POSSIBLE FROM KHOU TO THE COAST AHEAD OF THE COLD FRONT.
705 AM EDT MON APR 27 2015 HIGH PRESSURE OVER THE UPPER GREAT LAKES WILL REMAIN NEARLY STATIONARY THE NEXT FEW DAYS AS A LOW PRESSURE SYSTEM MOVES SLOWLY EAST FROM TEXAS TO GEORGIA.
WV IMAGERY AND 12Z UPPER AIR ANALYSIS INDICATE A CLOSED OFF UPPER LEVEL LOW SHIFTING SLOWLY EASTWARD ACROSS THE SOUTH PLAINS. MEANWHILE, UPPER LEVEL RIDGING IS PUSHING ASHORE INTO THE PACIFIC NORTHWEST AND NORTHERN CALIFORNIA. NEAR THE SURFACE, AN AREA OF HIGH PRESSURE IF MOVING EASTWARD OUT OF THE NORTHERN PLAINS INTO THE UPPER MIDWEST. SEVERAL UPPER LEVEL WAVES WILL ROTATE AROUND AN UPPER LOW WHICH WILL MOVE EAST ACROSS WESTERN OKLAHOMA TODAY. FURTHER SOUTH WHERE MORE CLOUDS ARE LIKELY ALONG WITH A IMPROVING CHANCES FOR PRECIPITATION WILL UNDERCUT GUIDANCE FAVORING THE COOLER 2M NAM TEMPS. SKIES WILL BEGIN TO CLEAR FROM NORTHWEST TO SOUTHEAST TONIGHT AS THE UPPER LOW CONTINUES TO MOVE EAST ACROSS OKLAHOMA.
1038 AM EDT MON APR 27 2015 MARINE A HIGH PRESSURE RIDGE WILL REMAIN IN CONTROL OF THE WEATHER PATTERN THROUGH THE UPCOMING WEEK AND PRODUCE FAIR WEATHER. HIGH PRESSURE WILL CONTINUE TO BRING FAIR AND SEASONABLY COOL WX EARLY THIS WEEK. SOME PATCHY FROST IS POSSIBLE DURING THE EARLY MORNING HOURS TUESDAY WITH NEAR CALM TO CALM WINDS AND THE RIDGE IN PLACE. HIGH PRESSURE WILL PRODUCE FAIR WX WITH A MIX OF SUN AND CLOUDS TUESDAY.
The low cloud clouds should break up or rise to low end VFR by early afternoon. A cold front will move south across West Central Texas late this afternoon and evening. /ISSUED 443 AM CDT Mon Apr 27 2015/ (Today and Tonight) A strong upper level low will move east from eastern New Mexico into Oklahoma during the next 24 hours. Highs will range from in the lower 70s across the Big Country to the lower 80s across the Heartland and Northwest Hill Country. For tonight, will continue the highest chances of rain across the northern half of the area due to wrap around moisture associated with the upper level low. Also, a cold front will move south across West Central Texas, with winds becoming north at 10 to 20 mph.
1139 AM CDT Mon Apr 27 2015 Chilly and dry northwest flow at the surface has kept temperatures in the lower to middle 40s this morning, with scattered clouds. With prevailing surface ridging for the first part of the week, expect the E/NE winds to persist through at least mid week. At this point widespread frost is not anticipated, as temperatures will be too warm, and winds should stay up around 5 kts, but can't rule out a very isolated area of frost or two near the IA/MO border where sheltering from the wind and low terrain could contribute to temperatures in the lower to middle 30s and some very patchy frost. This dry pattern will likely persist until late this week, before the pattern switches back to a potentially active pattern for the Plains and the Lower Missouri River region.
LATEST 11Z SURFACE ANALYSIS SHOWS HIGH PRESSURE OVER SOUTHERN ONTARIO AND NORTHERN MINNESOTA AND LATEST METARS OVER SOUTHWEST WISCONSIN AND SOUTHEAST MINNESOTA REPORTING NORTHERLY WINDS OF 5 TO 10 KNOTS. WITH HIGH PRESSURE DOMINATING THE AREA THROUGH TAF PERIOD.
833 AM PDT Mon Apr 27 2015 High pressure will bring dry weather and above normal temperatures to the area through the week.
428 AM PDT MON APR 27 2015 High pressure will build into the region today and linger through Tuesday for a couple of days of nice weather.
1118 AM CDT MON APR 27 2015 UPDATED THE FORECAST THIS MORNING TO SIGNIFICANTLY REDUCE HIGH TEMPERATURES IN THE NORTH CENTRAL AND FAR WESTERN PORTION OF THE CWA WHERE THE COLD FRONT HAS PUSHED THROUGH. THE REGION CURRENTLY SITS BETWEEN HIGH PRESSURE TO THE EAST AND A WEAK TROUGH/STATIONARY FRONT TO THE WEST. THE TROUGH IS FINALLY EXPECTED TO PUSH EAST LATER TODAY AND TONIGHT. THE HIGHEST POPS REMAIN ACROSS THE NORTHERN CWA TONIGHT. THE FAR NORTHWEST CWA MAY DROP INTO THE LOW 30S TONIGHT DUE TO CLEARING SKIES BEHIND THE FRONT.
626 AM CDT MON APR 27 2015 THE REGION CURRENTLY SITS BETWEEN HIGH PRESSURE TO THE EAST AND A WEAK TROUGH/STATIONARY FRONT TO THE WEST. THE TROUGH IS FINALLY EXPECTED TO PUSH EAST LATER TODAY AND TONIGHT. THE HIGHEST POPS REMAIN ACROSS THE NORTHERN CWA TONIGHT. THE FAR NORTHWEST CWA MAY DROP INTO THE LOW 30S TONIGHT DUE TO CLEARING SKIES BEHIND THE FRONT.
COLD AIR ADVECTION STILL IN PLACE IN THE LOW LEVELS AS NORTHERLY FLOW AROUND A LARGE LOW OFF THE COAST OF MAINE CONTINUES. THIS WILL BRING WARMER 850 MB TEMPERATURES TO PORTIONS OF NORTHERN ALABAMA. BUT WILL STRENGTHEN/VEER TO ENE ARND 28/09Z AS LOW PRESSURE DEVELOPS OVER THE NW GULF. CLOSED UPPER LEVEL LOW LOCATED NEAR THE NM/TX BORDER AND SW FLOW IN THE UPPER LEVELS WILL ALLOW FOR CIRRUS CLOUDS TO STREAM INTO THE AREA AND KEEP CONDITIONS PARTLY CLOUDY TODAY. AS THE CLOSED LOW SHIFTS EAST THROUGH OK/TX TODAY. WE DONT BEGIN TO SATURATE THE LOWER LEVELS UNTIL LATER ON TUESDAY AND SHOWERS SHOULD START IN THE AFTERNOON.
100 PM EDT MON APR 27 2015 A PERSISTENT UPPER LEVEL LOW OVER THE CANADIAN MARITIMES TODAY WILL SHIFT SOUTHWEST INTO THE GULF OF MAINE AND PRODUCE A FEW SHOWERS. THE LOW WILL SHIFT SLOWLY EAST TUESDAY.
630 AM CDT Mon Apr 27 2015 A strong upper level low is currently moving slowly across the southern Plains this morning. Southerly flow ahead of this feature is trying to advect moisture into the forecast area, but persistent northeasterly flow at the surface--courtesy of high pressure over the western Great Lakes--is keeping much of this moisture at bay. Somewhat better chances for showers/isolated thunderstorms will begin to kick in later this afternoon into tonight, as the center of the upper low gets closer to the region. For the rest of the forecast area, a combination of somewhat chilly air aloft and cloud cover moving up from the south will help limit temperatures today and Tuesday, with highs generally around 60 over southwestern Missouri, to the the low to mid 60s over central Missouri, where cloud cover won't be as extensive.
MOST OF THE ACTIVITY FOR HERE SHOULD HOLD OFF UNTIL TONIGHT INTO TUESDAY AS THE LOW PROGRESSES ACROSS THE COASTAL REGION. 16 /ISSUED 508 AM CDT MON APR 27 2015/ COOLER AND DRIER AIR HAS SPREAD ACROSS ALL OF CENTRAL ALABAMA EARLY THIS MORNING. THE COLD FRONT HAS MOVED INTO EXTREME SOUTHERN ALABAMA AND THE NORTHERN FLORIDA PANHANDLE. THE VERY POTENT UPPER LEVEL CLOSED LOW OVER THE SOUTHWEST STATES WILL SLOWLY MOVE EASTWARD. WHICH BRINGS THE LOW FARTHER NORTH INTO SOUTHERN ALABAMA. WITH THE VAST MAJORITY OF SOLUTIONS KEEPING THE LOW ALONG THE COAST. IF THE LOW DID TRACK FARTHER NORTH. WE'LL CONTINUE TO MONITOR THE LATEST TRENDS IN THE TRACK OF THE LOW. WITH THE LOW TRACKING OFF TO OUR SOUTH. THE HIGHEST RAINFALL AMOUNTS WILL CERTAINLY BE ALONG OUR SOUTHERN COUNTIES WHERE MOISTURE VALUES AND THUNDERSTORM CHANCES WILL BE HIGHEST.
A LONG WAVE RIDGE IS IN PLACE ALONG THE WEST COAST. THE THERMAL TROUGH WILL SWING INLAND OVER THE WEST SIDE VALLEYS THIS AFTERNOON. THE RIDGE WILL BREAK TO THE EAST OF THE AREA THIS EVENING. THE THERMAL TROUGH WILL MOVE OVER THE EAST SIDE TUESDAY. A COMPLEX TWO PART SHORT WAVE EJECTED FROM THE UPSTREAM TROUGH WILL MOVE ONSHORE TUESDAY NIGHT.
THUNDERSTORM ACTIVITY WILL PERSIST TUESDAY NIGHT AS A COLD FRONT MOVES ACROSS THE WATERS.
A RIDGE OF HIGH PRESSURE OVER THE WEST COAST WILL BRING DRY WEATHER AND INTERIOR TEMPERATURES WELL ABOVE NORMAL TODAY.
SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND EVENING AS AN UPPER LOW MOVES INTO THE REGION. IN A REGION OF UPPER DIFFLUENCE AND LOW-MID LVL WAA IN ADVANCE OF AN UPPER LEVEL LOW. SLIDING EAST WITH THE UPPER LOW. RAIN CHANCES TAPER OFF BY TUESDAY EVENING AS THE UPPER LOW MOVES AWAY FROM THE REGION. RIDGING ALOFT WILL MAINTAIN DRY AND TRANQUIL WEATHER FOR THE MIDDLE TO LATTER PART OF THE WEEK.
CURRENTLY THE UPPER LEVEL LOW IS CENTERED OVER NEW MEXICO WITH A BROAD AREA OF DIFFLUENCE ALOFT FROM NORTH TO SOUTH CENTRAL TEXAS. A COLD FRONT IS MOVING SOUTHEAST ACROSS THE AREA WITH A LINE OF THUNDERSTORMS DEVELOPING WITH FROPA. AS THIS LOW MOVES FURTHER EAST TODAY. THE CLOSED LOW MOVES SLOWLY EAST INTO NORTHERN TEXAS AND OKLAHOMA WITH A RELAX PRESSURE GRADIENT EXPECTED OVERNIGHT. OVERNIGHT THE SURGE OF HIGH PRESSURE WILL MAKE IT THROUGH THE AREA INCREASING NORTHERLY WINDS TUESDAY. THICKNESS VALUES CONTINUE TO SHOW A LOWERING TREND WITH THIS LOW WHICH WILL ALLOW FOR TEMPS TO REMAIN IN THE MID TO UPPER 70S AND NEAR 80S ALONG THE RGV. THIS WILL POSSIBLY BE THE LAST TIME WE WILL SEE TEMPS THIS LOW UNTIL FALL.
1030 AM EDT MON APR 27 2015 A PERSISTENT UPPER LEVEL LOW OVER THE CANADIAN MARITIMES TODAY WILL SHIFT SOUTHWEST INTO THE GULF OF MAINE AND PRODUCE A FEW SHOWERS. THE LOW WILL SHIFT SLOWLY EAST TUESDAY.
LINGERING LOW LEVEL MOISTURE FROM THE EXITING LOW PRESSURE SYSTEM TO OUR EAST WILL ALLOW FOR A FEW AFTERNOON SHOWERS OVER EASTERN ARIZONA TODAY AND TUESDAY. WITH TEMPERATURES ACROSS THE LOWER DESERTS APPROACHING THE 100 DEGREE MARK DURING THE MIDWEEK TIME FRAME. WHILE HEIGHTS ALOFT REMAIN FAIRLY STABLE TODAY AS WE STILL SEE INFLUENCE FROM THE EXITING TROUGH TO OUR EAST. THE PACIFIC RIDGE WILL EDGE INTO WESTERN ARIZONA WITH 500MB HEIGHTS APPROACHING 580DM. THE BIG STORY WILL BE THE WARMING TEMPERATURES AS THE UPPER RIDGE BEGINS TO SHIFT OVERHEAD. HIGHS TUESDAY SHOULD PEAK OUT IN THE LOWER 90S ACROSS THE DESERTS.
MVFR CONDITIONS EXPECTED TO DEVELOP IN RESPONSE TO A COLD FRONT NEAR THE END OF THE TAF PERIOD. CONCUR WITH THE GFS DETERMINISTIC THAT AN UPPER LOW WILL MOVE SLOWLY EWD ACRS NRN TX/OK DRG THE PERIOD. AS THE FOREGOING UPPER LOW MOVES EAST OF THE REGION TUESDAY.
HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH TUESDAY. OVERALL THINGS STILL LOOK ON TRACK FOR A WARMER DAY AS THE MID/UPPER LOW DEPARTS AND THE RIDGE ALOFT BUILDS ON IN FROM THE WEST.
1114 AM EDT MON APR 27 2015 AN UPPER TROUGH WILL MOVE SOUTH ACROSS THE MID ATLANTIC STATES TODAY AND EARLY TONIGHT.
1043 AM EDT MON APR 27 2015 HYDRO A HIGH PRESSURE RIDGE WILL REMAIN IN CONTROL OF THE WEATHER PATTERN THROUGH THE UPCOMING WEEK AND PRODUCE FAIR WEATHER. HIGH PRESSURE WILL CONTINUE TO BRING FAIR AND SEASONABLY COOL WX EARLY THIS WEEK. SOME PATCHY FROST IS POSSIBLE DURING THE EARLY MORNING HOURS TUESDAY WITH NEAR CALM TO CALM WINDS AND THE RIDGE IN PLACE. HIGH PRESSURE WILL PRODUCE FAIR WX WITH A MIX OF SUN AND CLOUDS TUESDAY.
841 AM MST MON APR 27 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 AND TUESDAY. WITH TEMPERATURES ACROSS THE LOWER DESERTS APPROACHING THE 100 DEGREE MARK DURING THE MIDWEEK TIME FRAME. STILL HAS SOME INFLUENCE ACROSS ARIZONA WITH ELEVATED NORTHERLY WINDS DOWN THE LOWER COLORADO RIVER AND SOME INCREASED MOISTURE ACROSS THE EASTERN HALF OF THE STATE. WHILE HEIGHTS ALOFT REMAIN FAIRLY STABLE TODAY AS WE STILL SEE INFLUENCE FROM THE EXITING TROUGH TO OUR EAST. THE PACIFIC RIDGE WILL EDGE INTO WESTERN ARIZONA WITH 500MB HEIGHTS APPROACHING 580DM. THE BIG STORY WILL BE THE WARMING TEMPERATURES AS THE UPPER RIDGE BEGINS TO SHIFT OVERHEAD. HIGHS TUESDAY SHOULD PEAK OUT IN THE LOWER 90S ACROSS THE DESERTS.
THE HIGH RESOLUTION HRRR MODEL AGREED WITH THE GLOBAL MODELS IN MOVING THE CURRENT CONVECTION EAST OF THE AREA WHILE POSSIBLY DEVELOPING MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON AS THE UPPER LOW IN NM MOVES INTO THE SOUTHERN PLAINS. AT LEAST MVFR CONDITIONS ARE POSSIBLE FROM KHOU TO THE COAST AHEAD OF THE COLD FRONT. A COLD FRONT WILL CROSS SE TX TONIGHT AND THIS FEATURE COULD ALSO SERVE AS A FOCUS FOR ADDITIONAL SHRA/TSRA. THE FRONT WILL USHER IN COOLER TEMPS AND BRISK NORTHWEST WINDS.
IN THE LOW LEVELS OF THE ATMOSPHERE. AN AREA OF LOW PRESSURE WILL DEVELOP OVER THE NORTHWEST GULF OF MEXICO THIS AFTERNOON. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS THE FLORIDA STRAITS TODAY.
908 AM EDT MON APR 27 2015 A TROUGH WILL MOVE SOUTH ACROSS THE EASTERN GREAT LAKES TODAY.
744 AM EDT MON APR 27 2015 AVIATION A HIGH PRESSURE RIDGE WILL REMAIN IN CONTROL OF THE WEATHER PATTERN THROUGH THE UPCOMING WEEK AND PRODUCE FAIR WEATHER. HIGH PRESSURE WILL CONTINUE TO BRING FAIR AND SEASONABLY COOL WX EARLY THIS WEEK. SOME PATCHY FROST IS POSSIBLE DURING THE EARLY MORNING HOURS TUESDAY WITH NEAR CALM TO CALM WINDS AND THE RIDGE IN PLACE. HIGH PRESSURE WILL PRODUCE FAIR WX WITH A MIX OF SUN AND CLOUDS TUESDAY.
1035 AM EDT MON APR 27 2015 HIGH PRESSURE WILL BUILD SOUTH INTO THE REGION THROUGH TUESDAY.
COOLER AND DRIER AIR HAS SPREAD ACROSS ALL OF CENTRAL ALABAMA EARLY THIS MORNING. THE COLD FRONT HAS MOVED INTO EXTREME SOUTHERN ALABAMA AND THE NORTHERN FLORIDA PANHANDLE. THE VERY POTENT UPPER LEVEL CLOSED LOW OVER THE SOUTHWEST STATES WILL SLOWLY MOVE EASTWARD. WHICH BRINGS THE LOW FARTHER NORTH INTO SOUTHERN ALABAMA. WITH THE VAST MAJORITY OF SOLUTIONS KEEPING THE LOW ALONG THE COAST. IF THE LOW DID TRACK FARTHER NORTH. WE'LL CONTINUE TO MONITOR THE LATEST TRENDS IN THE TRACK OF THE LOW. WITH THE LOW TRACKING OFF TO OUR SOUTH. THE HIGHEST RAINFALL AMOUNTS WILL CERTAINLY BE ALONG OUR SOUTHERN COUNTIES WHERE MOISTURE VALUES AND THUNDERSTORM CHANCES WILL BE HIGHEST.
634 AM CDT MON APR 27 2015 WEAK HIGH PRESSURE WILL BE IN CONTROL OF TODAYS WEATHER IN WHAT SHOULD BE A VERY PLEASANT DAY. THEREFORE PREFERRED THE GUIDANCE VALUES WHICH HAD 30S IN THE LOW LYING LOCATIONS FOR NORTHWEST IA. COLD FRONT IS EXPECTED TO SHIFT SOUTH ACROSS THE FORECAST AREA ON TUESDAY.
306 PM EDT SUN AUG 2 2015 RELATIVELY QUIET FORECAST PERIOD AS WEAK HIGH PRESSURE NORTH OF THE AREA AND NW TO WEST FLOW ALOFT DOMINATE THE NORTHWEST MAJORITY OF THE CWA WITH ABNORMALLY DRY THERMAL PROFILES AND MOSTLY CAPPED CONVECTIVE ENVIRONMENT. THE FAR SOUTHEAST PORTION OF THE AREA LOOKS TO BE INFLUENCED BY THE EVOLUTION OF A WEAK AREA OF LOW PRESSURE SLOWLY TRACKING NEWD FROM THE FL PANHANDLE THIS EVENING TO OFF THE FAR SE GA COAST BY MONDAY AFTERNOON.
320 PM EDT SUN AUG 2 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS TO START THE WORK WEEK. ATTENTION WILL THEN TURN TO THE LOW PRESSURE SYSTEM CURRENTLY OVER WISCONSIN. WHILE THE LOW MOVES EAST OVERNIGHT. THE ASSOCIATED COLD FRONT WILL SLIDE TO THE SOUTHEAST. OVERNIGHT LOWS SHOULD REMAIN A BIT WARMER THAN LAST NIGHT CONSIDERING WINDS WILL NOT GO CALM AS WELL AS HIGH CLOUDS MOVING IN BEFORE THE FRONT. MONDAY HIGHS WILL BE A FEW DEGREES COOLER THAN TODAY WITH THE ARRIVAL OF THE COLD FRONT.
218 PM PDT SUN AUG 2 2015 COOLER WEATHER THIS WEEK.
COLD FRONT IS A LITTLE SLOWER TO MOVE INTO THE REGION.
509 PM EDT SUN AUG 2 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH MONDAY.
THE HIGHEST TEMPERATURES ARE EXPECTED ACROSS SOUTHEAST OKLAHOMA AND THE RIVER VALLEY OF WEST-CENTRAL ARKANSAS.
401 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL KEEP FAIR WEATHER OVER THE REGION THIS AFTERNOON AND TONIGHT. A COLD FRONT IS EXPECTED TO PASS THROUGH ON MONDAY ACCOMPANIED BY SCATTERED TO NUMEROUS.
THE GFS/ECMWF BOTH INDICATE THAT THE LOW LEVEL THERMAL RIDGE (H850 TEMPS ~ 22 DEG C) WILL SHIFT A LITTLE MORE TO THE NORTH EARLY THIS WEEK.
320 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL KEEP THINGS QUIET WITH NEAR NORMAL TEMPERATURES TO ROUND OUT THE WEEKEND. A COLD FRONT WILL BRING SHOWERS AND THUNDERSTORMS TO THE AREA MONDAY. ANOTHER QUIET DAY IS EXPECTED OVER CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA TODAY AS WEAK HIGH PRESSURE CONTINUES TO PREVAIL OVER THE REGION. TEMPS WILL RISE INTO THE LOWER 80S THIS AFTERNOON AND FALL INTO THE 60S TONIGHT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP AHEAD OF THE APPROACHING COLD FRONT MID MONDAY AFTERNOON.
304 PM CDT SUN AUG 2 2015 A COLD FRONT HAS MOVED THROUGH THE REST OF OUR NORTHWEST WISCONSIN ZONES AS OF 20Z. HIGHS WILL ONLY BE IN THE MID 60S FAR NORTH AND THE LOWER TO MID 70S ACROSS OUR SOUTHERN ZONES. KEEPING THE NORTHLAND SLIGHTLY COOLER THAN NORMAL.
300 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL REMAIN IN CONTROL ON MONDAY WITH A COLD FRONT APPROACHING FROM THE WEST.