Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front will move across the northern terminals Friday afternoon and across the southern terminals Friday evening.
530 PM CST TUE FEB 9 2016 THE REGION REMAINS IN STRONG NORTHWESTERLY FLOW ALOFT IN BETWEEN A DEEP TROUGH EXTENDING FROM THE GREAT LAKES REGION INTO THE SOUTHEASTERN STATES AND AN AMPLIFIED RIDGE EXTENDING ACROSS THE WESTERN STATES. A TIGHTENING BAROCLINIC ZONE WILL SET UP ACROSS THE FORECAST AREA AS WARMER DOWNSLOPING TO OUR WEST MOVES EAST WITH COLDER AIRMASS STUCK WITHIN THE TROUGH.
/ISSUED 256 PM CST TUE FEB 9 2016/ HIGH PRESSURE OVER THE CENTRAL PLAINS WILL CONTINUE TO RIDGE IN TEXAS TONIGHT. HIGH PRESSURE WILL GRADUALLY MOVE EAST OVER THE NEXT COUPLE OF DAYS WITH ONSHORE WINDS RETURNING ON WEDNESDAY.
WINDS WILL TURN A LITTLE MORE NORTHWEST BEHIND A TROUGH ROTATING AROUND THE BROAD LOW PRESSURE SYSTEM OVER THE NORTHEAST STATES. A STREAM OF CIRROSTRATUS ACROSS THE SOUTH HALF SHOULD GRADUALLY SHIFT AWAY AS BROAD TROUGH ALOFT NUDGES EAST. MUCH COOLER THAN NORMAL. WEST WINDS HAVE REMAINED A BIT GUSTY KMCO NORTH AS A WEAK TROUGH WAS SLIDING THROUGH AND ENHANCING COLD ADVECTION/LOW LEVEL MIXING. THE WINDS WILL TURN MORE NORTHWEST OVERNIGHT BEHIND THE TROUGH. THERE WAS A BIT OF A DECREASE IN WINDS DURING THE DAY BUT A WEAK TROUGH CROSSING THE WATERS WAS ALREADY STARTING TO INCREASE THE GUSTINESS.
THE UPPER RIDGE WILL GRADUALLY WEAKEN WITH THE RIDGE AXIS SHIFTING EAST OVER THE NEXT FEW DAYS. TYPICALLY WHEN FRONTS LIKE THIS RUN INTO A RIDGE (ESPECIALLY ONE THAT IS RATHER STRONG FOR THIS TIME OF THE YEAR) THEY TEND TO WEAKEN AND DISSIPATE, HENCE THE REASONING FOR KEEPING POPS BELOW GUIDANCE. THE REST OF THE AREA WILL BE DRY WITH MORE CLOUD COVER AND COOLER TEMPERATURES, BUT STILL ABOVE NORMAL FOR THIS TIME OF THE YEAR.
414 PM CST TUE FEB 9 2016 LARGE CLOSED LOW IS WEAKENING AND PULLING AWAY FROM THE SOUTHEAST THIS AFTERNOON. WITH THE LONGWAVE TROUGH STILL SITUATED OVER THE TENNESSEE VALLEY. A LOBE OF LOW LEVEL FORCING ROTATING AROUND THE BACK SIDE OF THE TROUGH WILL PROVIDE LIFT FOR CONTINUED ISOLATED TO SCATTERED SNOW SHOWERS THROUGH THIS EVENING.
A STRONG RIDGE OF HIGH PRESSURE WILL BRING COOL BUT DRY WEATHER TO NORTHERN AND CENTRAL NEVADA FOR THE REMAINDER OF THIS WEEK.
519 PM CST TUE FEB 9 2016 THE BREEZY CONDITIONS LATE THIS AFTERNOON WILL GRADUALLY LESSEN OVERNIGHT AS HIGH PRESSURE MOVES ACROSS SW AR. WINDS HAVE BEEN SLIGHTLY LOWER TODAY THAN WHAT WAS SEEN YESTERDAY WITH MORE WIDESPREAD RH VALUES IN THE LOWER 20 PERCENT RANGE. OVERNIGHT LOW TEMPERATURES WILL BE A BIT COOLER THAN WHAT WAS SEEN THIS MORNING. HOWEVER TEMPERATURES WILL REBOUND NICELY ON WEDNESDAY WITH HIGHS RANGING FROM THE LOWER 40S TO UPPER 50S.
524 PM CST TUE FEB 9 2016 With upper ridge over the area and weak surface pressure gradient look for a light and variable wind. A high amplitude pattern with ridging over the western US and a deep trough extending from Hudson Bay to the Gulf Coast continues to maintain northwest flow aloft across southeast New Mexico and west Texas. Wednesday will be even warmer, with highs expected to be 10 to 15 degrees above normal area-wide.
AN UPPER LEVEL RIDGE WILL STAY WEST OF COLORADO TONIGHT AND WEDNESDAY. WEDNESDAY'S HIGH TEMPERATURES ARE 2-4 C WARMER THAN THIS AFTERNOON'S HIGHS. UPPER RIDGE OVER THE WEST WILL SLOWLY PROGRESS EASTWARD WITH THE NORTHWEST FLOW ALOFT EASING.
450 PM MST TUE FEB 9 2016 00Z TAF CYCLE STRONG HIGH PRESSURE SYSTEM ALOFT TO THE WEST OF NM WILL WEAKEN A BIT THROUGH THE FCST PERIOD.
WITH MORE IN THE HIGHER ELEVATIONS WITHIN THE WARNING. CHATTANOOGA AIRPORT, TN 21 33 25 43 / 40 10 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 20 28 21 39 / 40 10 10 10 OAK RIDGE, TN 21 29 20 38 / 40 10 10 10 TRI CITIES AIRPORT, TN 17 25 14 31 / 50 40 10 10 NC.
UPPER LEVEL JET DROPPING SOUTH LATER THIS EVENING IS EXPECTED TO BRING A MORE WIDESPREAD AREA OF SNOW ALONG AND EAST OF THE HIGHWAY 83 CORRIDOR. THIS WOULD IN TURN PRODUCE FREEZING DRIZZLE OR FREEZING RAIN.
OTHERWISE ADJUSTED TEMPERATURES A BIT THROUGH THE NIGHT WITH READINGS IN THE EAST A FEW DEGREES WARMER THAN PREVIOUSLY FORECAST. THERE REMAINS A SMALL THREAT OF LIGHT FREEZING DRIZZLE ON THE BACK EDGE OF THE PRECIPITATION SHIELD WEDNESDAY SO KEPT A SLIGHT CHANCE OF FREEZING DRIZZLE AS PREVIOUSLY FORECAST. UPPER LEVEL JET DROPPING SOUTH LATER THIS EVENING IS EXPECTED TO BRING A MORE WIDESPREAD AREA OF SNOW ALONG AND EAST OF THE HIGHWAY 83 CORRIDOR. THIS WOULD IN TURN PRODUCE FREEZING DRIZZLE OR FREEZING RAIN.
LARGE CLOSED LOW IS WEAKENING AND PULLING AWAY FROM THE SOUTHEAST THIS AFTERNOON. WITH THE LONGWAVE TROUGH STILL SITUATED OVER THE TENNESSEE VALLEY. A LOBE OF LOW LEVEL FORCING ROTATING AROUND THE BACK SIDE OF THE TROUGH WILL PROVIDE LIFT FOR CONTINUED ISOLATED TO SCATTERED SNOW SHOWERS THROUGH THIS EVENING.
VFR CONDITIONS WILL CONTINUE ACROSS THE AREA THROUGH THE NEXT 24 HOURS AS HIGH PRESSURE PROVIDES SUBSIDENCE OVER THE REGION. 500MB RIDGE ACROSS THE WESTERN UNITED STATES AND THE 500MB TROUGH ACROSS THE EASTERN U.
951 PM EST TUE FEB 9 2016 TONIGHT WEAK LOW PRESSURE LINGERS OVER THE AREA. ANOTHER WEAK LOW WILL PASS BY OFFSHORE ON WEDNESDAY WITH A TROUGH EXTENDING WESTWARD INTO NEW ENGLAND.
633 PM EST TUE FEB 9 2016 LOW PRESSURE WILL MOVE OFF THE EAST COAST TONIGHT. A DEEP UPPER TROUGH WILL ESTABLISH ITSELF OVER THE NORTHEASTERN US OVER THE NEXT SEVERAL DAYS BRINGING THE COLDEST AIR OF THE SEASON ALONG WITH A PROLONGED PERIOD OF SNOW SHOWERS TO WESTERN AND NORTHERN HIGHER ELEVATIONS. BUT WITH TEMPERATURES FALLING BELOW FREEZING. LOW TEMPS WILL FALL INTO THE LOW TO MID 20S TONIGHT. BECOMING A LONG WAVE TROUGH TONIGHT. DOWNSLOPE MAY ALLOW THE SE TO GET A DEG OR TWO WARMER THAN TODAY.
VFR CONDITIONS CONTINUE WITH HIGH PRESSURE BUILDING.
A LARGE SCALE PATTERN OF A RIDGE OVER THE WESTERN STATES AND A TROUGH OVER THE EAST WILL CONTINUE. COASTAL LOCATIONS SLIGHTLY WARMER. HIGH PRESSURE BUILDS IN WED. A DRY COLD FRONT MOVES THROUGH FRI.
253 PM PST TUE FEB 9 2016 HIGH PRESSURE WILL CONTINUE TO BRING DRY WEATHER TO THE CENTRAL CALIFORNIA INTERIOR FOR THE NEXT SEVERAL DAYS WITH PATCHY NIGHT AND MORNING FOG IN THE SAN JOAQUIN VALLEY. THE UPPER RIDGE AXIS HAS SHIFTED EAST OVER THE GREAT BASIN WITH DRY AND UNSEASONABLY MILD CONDITIONS CONTINUING ACROSS THE CENTRAL CALIFORNIA INTERIOR. AN OFFSHORE SURFACE FLOW HAS HELPED WARM UP THE LOWER ELEVATIONS EVEN MORE WITH WIDESPREAD READINGS IN THE 70S. FRESNO AND BAKERSFIELD HAD ALREADY BROKEN THE HIGH TEMPERATURE RECORD FOR THE DAY.
LOW PRESSURE TO THE NORTH WILL PROVIDE GUSTY WSW WINDS ON WEDNESDAY AND CONTINUATION OF VERY DRY CONDITIONS. THE SYNOPTIC SCALE PATTERN WILL GRADUALLY DEAMPLIFY WITH A TREND TOWARD HIGHER MID LEVEL HEIGHTS AS WESTERN RIDGE MOVES SLOWLY EASTWARD. MEANWHILE WEAK PERTURBATIONS IN THE NORTHWESTERLY FLOW ALOFT WILL OCCASIONALLY FORCE WEAK COLD FRONTS SOUTHWARD INTO THE AREA.
831 PM EST TUE FEB 9 2016 LOW PRESSURE WILL MOVE OFF THE EAST COAST TONIGHT. A DEEP UPPER TROUGH WILL ESTABLISH ITSELF OVER THE NORTHEASTERN US OVER THE NEXT SEVERAL DAYS BRINGING THE COLDEST AIR OF THE SEASON ALONG WITH A PROLONGED PERIOD OF SNOW SHOWERS TO WESTERN AND NORTHERN HIGHER ELEVATIONS. BUT WITH TEMPERATURES FALLING BELOW FREEZING. LOW TEMPS WILL FALL INTO THE LOW TO MID 20S TONIGHT. BECOMING A LONG WAVE TROUGH TONIGHT. DOWNSLOPE MAY ALLOW THE SE TO GET A DEG OR TWO WARMER THAN TODAY.
SOUTHWESTERLY FLOW SHOULD PREVAIL TOMORROW AND TEMPERATURES SHOULD CLIMB INTO THE MID 60S EAST TO LOWER 70S WEST WITH AFTERNOON HUMIDITIES STILL DOWN INTO THE LOWER TO MID 20 PERCENT WEST TO LOWER TO MID 30 PERCENT RANGE IN THE EAST. TIDE LEVELS ARE STILL SUPPRESSED AND WILL CONTINUE THE LOW WATER ADVISORY TIL MIDNIGHT THOUGH WITH LIGHTER WINDS ON TAP OVERNIGHT THE NORMAL TIDAL CYCLE SHOULD RETURN AND LEVELS SHOULD RISE BACK TOWARD NORMAL OVERNIGHT AND WEDNESDAY MORNING. /ISSUED 256 PM CST TUE FEB 9 2016/ HIGH PRESSURE OVER THE CENTRAL PLAINS WILL CONTINUE TO RIDGE IN TEXAS TONIGHT. HIGH PRESSURE WILL GRADUALLY MOVE EAST OVER THE NEXT COUPLE OF DAYS WITH ONSHORE WINDS RETURNING ON WEDNESDAY.
658 PM EST TUE FEB 9 2016 UPPER AIR PATTERN CONSISTS OF A 500 MB RIDGE IN THE WESTERN U. AND A CLOSED 500 MB LOW IN SOUTHERN ONTARIO WITH A TROUGH IN THE GREAT LAKES REGION. THIS TROUGH CONTINUES TO MOVE SLOWLY EAST INTO THE LOWER GREAT LAKES TONIGHT AS THE RIDGE MOVES INTO THE ROCKIES.
/ISSUED 232 PM CST TUE FEB 9 2016/ FCST AREA TO REMAIN UNDER NW UPPER LEVEL FLOW WITH UPPER LEVEL RIDGING OVER THE WRN CONUS AND A TROUGH ACROSS THE EAST. AS THE RIDGE NUDGES EWD WILL SEE HEIGHTS AND INCREASES INCREASE AS WELL.
/ISSUED 319 PM CST TUE FEB 9 2016/ A DEEP UPPER LEVEL LONGWAVE TROF OVER THE EASTERN HALF OF THE U.
909 PM EST TUE FEB 9 2016 A DEEP UPPER TROUGH WILL ESTABLISH ITSELF OVER THE NORTHEASTERN US OVER THE NEXT SEVERAL DAYS BRINGING THE COLDEST AIR OF THE SEASON ALONG WITH A PROLONGED PERIOD OF SNOW SHOWERS TO WESTERN AND NORTHERN HIGHER ELEVATIONS. LOW TEMPS WILL FALL INTO THE LOW TO MID 20S TONIGHT.
228 PM PST TUE FEB 9 2016 HIGH PRESSURE WILL CONTINUE TO BRING ABOVE AVERAGE TEMPERATURES ALONG WITH GENERALLY LIGHT WINDS THROUGH THE REST OF THE WEEK.
THE QUESTION MARKS ARE THE TRACK OF THE LOW. SHORT TERM FORECAST REMAINS MOSTLY QUIET AS THE WESTERN US RIDGE CONTINUES TO DOMINATE. MODELS ARE CONTINUING TO SHOW SOME LEE SIDE TROUGHING THAT WILL KEEP BRISK WINDS UP AROUND LIVINGSTON.
A SHALLOW TROUGH IS EXPECTED TO PASS THROUGH THIS EVENING. AND HIGHEST OVER WARMER STRAITS AND SOUTHEAST GULF WATERS.
920 PM CST TUE FEB 9 2016 WX MAP SHOWS PRESSURE GRADIENT FINALLY RELAXING AS THE HIGH PRESSURE RIDGE EDGES EASTWARD OVER LA. SLIGHTLY WARMER ON THE COAST. TEMPERATURES TONIGHT WILL GENERALLY RUN A LITTLE COOLER THAN LAST NIGHT. COUPLED WITH A WARMING THERMAL PROFILE AS THE UPPER TROF BEGINS TO EASE OUT TO THE EAST. HIGHS TOMORROW WILL BE A LITTLE WARMER. THERE IS SUFFICIENT AGREEMENT AT THIS TIME FOR A SMALL INCREASE IN POPS SUN NIGHT AND MON INTO THE LOW END CHANCE RANGE. 13 WINDS AND SEAS WILL CONTINUE TO GRADUALLY SUBSIDE TONIGHT AS HIGH PRESSURE BUILDS SOUTH INTO THE NORTHWEST GULF COAST REGION.
UPPER LEVEL RIDGE IS BEGINNING TO WEAKEN AND BECOME LESS AMPLIFIED OVER THE WESTERN UNITED STATES. EXCEPT LINGERING IN THE LOWER TREASURE VALLEY AND THE WEISER RIVER BASIN. WILL UPDATE THE FORECAST TONIGHT FOR LESS FOG DEVELOPMENT AS THE FOG HAS EVOLVED MORE INTO A LOW STRATUS DECK IN THE LOWER TREASURE VALLEY. HIGH PRESSURE ALOFT WILL MAINTAIN THE TEMPERATURE INVERSION FOR SEVERAL MORE DAYS.
STRONG HIGH PRESSURE ACROSS THE INTERIOR WEST WILL REMAIN THE DOMINANT WEATHER FEATURE THROUGH THE BALANCE OF THE WORK WEEK. THE AXIS OF THE STRONG RIDGE REMAINS ALONG THE UT/NV BORDER THIS EVE WITH A SOLID INVERSION IN PLACE IN MOST VALLEYS. THE RIDGE REMAINS PRETTY MUCH IN PLACE THRU FRI WITH MANY OF THE FORECAST ELEMENTS REMAINING THE SAME OR SIMILAR THROUGH THAT TIME.
WATER VAPOR SATELLITE TRENDS THIS EVENING PLACE A LONGWAVE TROUGH AXIS OVER THE PLAINS INTO THE SOUTHWEST UNITED STATES WHILE AN UPPER LEVEL LOW IS CENTERED NEAR THE MISSISSIPPI/ALABAMA GULF COAST. TEMPERATURES ACROSS THE MID SOUTH ARE IN THE LOWER TO MIDDLE 70S AT MOST LOCATIONS. THE HIGH WILL PUSH FURTHER TO THE NORTHEAST TONIGHT. THIS WILL ALLOW AN UPPER TROF CURRENTLY OVER THE CENTRAL PLAINS TO APPROACH NORTHEAST ARKANSAS LATE TONIGHT WHILE AN EASTERLY WAVE WILL MOVE NORTHWESTWARD ACROSS ALABAMA INTO NORTHEAST MISSISSIPPI BY SUNRISE.
723 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT.
1058 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT.
1257 AM EDT SAT AUG 29 2015 HIGH PRESSURE OVER THE AREA WILL KEEP IT DRY AND WARM TODAY INTO TONIGHT.
1051 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL DOMINATE THE REGION THROUGH SATURDAY AND PROVIDE THE REGION WITH DRY CONDITIONS AND CLEAR TO PARTLY CLOUDY SKIES.
/ISSUED 215 PM CDT FRI AUG 28 2015/ UPPER LEVEL RIDGE OVER THE FOUR CORNERS AREA WILL SLOWLY SHIFT EASTWARD THROUGH THE WEEKEND.
940 PM EDT FRI AUG 28 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH THE WEEKEND. ANOTHER QUIET NIGHT UNDER HIGH PRESSURE.
AN ISOLATED THUNDERSTORM DEVELOPED ACROSS THE LOWER KEYS LATE THIS AFTERNOON AND MOVED WEST ACROSS KEY WEST.
CHATTANOOGA AIRPORT, TN 68 85 70 83 / 10 30 30 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 65 86 68 83 / 0 20 20 50 OAK RIDGE, TN 65 86 68 83 / 0 10 20 50 TRI CITIES AIRPORT, TN 60 84 63 81 / 0 0 20 40.
1228 AM EDT SAT AUG 29 2015 A STATIONARY FRONT OFF THE COAST WILL DRIFT SLOWLY EAST THROUGH THE WEEKEND AS HIGH PRESSURE BUILDS INTO THE AREA FROM THE NORTH. THE HIGH WILL CONTINUE OVER THE AREA THROUGH MID WEEK.
HIGH PRESSURE WILL BRING A WARMING AND DRYING TREND THROUGH SATURDAY.
MOST OF THE HIGH RESOLUTION OUTPUT KEEPS IT JUST TO THE EAST. INTO SATURDAY THE HEAT AND HUMIDITY IS ON AS UPPER RIDGE BUILDS IN.
/ISSUED 1021 PM CDT FRI AUG 28 2015/ MADE ADJUSTMENTS TO THE RAIN CHANGES THROUGH THE WEEKEND WITH AN UPPER LEVEL TROUGH OF LOW PRESSURE MOVING SOUTHEAST INTO THE AREA ALONG WITH CLOUD COVER. /ISSUED 215 PM CDT FRI AUG 28 2015/ UPPER LEVEL RIDGE OVER THE FOUR CORNERS AREA WILL SLOWLY SHIFT EASTWARD THROUGH THE WEEKEND.
MOSTLY CLEAR SKIES AND CALM WINDS WILL SET THE STAGE FOR A RIDGE VALLEY TEMPERATURE SPLIT AND VALLEY FOG OVERNIGHT. TONIGHTS TEMPERATURES WILL BE QUITE A BIT WARMER THAN WHAT WE SAW LATE LAST NIGHT AND EARLY THIS MORNING.
1138 PM CDT FRI AUG 28 2015 VFR WILL PREVAIL BUT ABUNDANT MID-HIGH CLOUDS ARE EXPECTED AS WEAK MID AND UPPER LEVEL TROUGH AXIS SLIDES INTO THE REGION. S UPPER HIGH TODAY AND WILL DO SO THROUGH MID EVENING. AS A COASTAL MID LEVEL TROUGH CURRENTLY NEAR MOBILE ALABAMA DRIFTS WEST. THE EASTERN EXTENT OF THE UPPER HIGH OVER OUR AREA WILL WEAKEN AND ALLOW WEAK NORTH FLOW ALOFT OVER THE AREA THIS WEEKEND. A COLD FRONT WILL DRIFT SOUTHEAST NEAR OR INTO OUR NORTHWEST COUNTIES BY LATE IN THE WEEKEND.
1040 PM CDT FRI AUG 28 2015 LOW PRESSURE SYSTEM CONTINUES TO SLOWLY PUSH ACROSS THE CENTRAL PLAINS THIS AFTERNOON. ELSEWHERE THE RIDGE IS BUILDING ACROSS THE ROCKIES. TONIGHT WILL SEE THE CLOUDS SLOWLY CLEAR FROM WEST TO EAST AS THE LOW PRESSURE SYSTEM DRIFTS EASTWARD. TOMORROW WILL SEE WARM AIR ADVECTION AS ROCKIES RIDGE EXPANDS.
A LARGE RIDGE OF HIGH PRESSURE CURRENTLY CENTERED OVER SOUTHERN NEW ENGLAND WILL REMAIN IN CONTROL OF AREA WEATHER OVERNIGHT INTO SATURDAY MORNING. CALM WINDS AND CLEAR SKIES ASSOCIATED WITH THIS RIDGE WILL SET THE STAGE FOR A RIDGE VALLEY TEMPERATURE SPLIT AND VALLEY FOG OVERNIGHT INTO EARLY TOMORROW MORNING. MOSTLY CLEAR SKIES AND CALM WINDS WILL SET THE STAGE FOR A RIDGE VALLEY TEMPERATURE SPLIT AND VALLEY FOG OVERNIGHT. TONIGHTS TEMPERATURES WILL BE QUITE A BIT WARMER THAN WHAT WE SAW LATE LAST NIGHT AND EARLY THIS MORNING.
FORECAST IS STILL ON TRACK FOR LOW HUMIDITY CONDITIONS AND GUSTY WINDS TO DEVELOP AHEAD OF A PACIFIC COLD FRONT THAT WILL CROSS EAST OF THE CONTINENTAL DIVIDE BY EARLY SATURDAY EVENING.
1245 AM EDT SAT AUG 29 2015 LOW PRESSURE OVER IOWA WILL WEAKEN AS IT MOVES SLOWLY EAST THIS WEEKEND.
833 PM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE SLIDES EAST.
ALTHOUGH A GENERAL DETERIORATION IS EXPECTED OVER THE NEXT 24 HRS AS AN UPPER-LVL DISTURBANCE ROTATES NWWD AROUND A LARGER TROUGH LOCATED NEAR THE CENTRAL GULF COAST.
1021 PM CDT FRI AUG 28 2015 MADE ADJUSTMENTS TO THE RAIN CHANGES THROUGH THE WEEKEND WITH AN UPPER LEVEL TROUGH OF LOW PRESSURE MOVING SOUTHEAST INTO THE AREA ALONG WITH CLOUD COVER. /ISSUED 215 PM CDT FRI AUG 28 2015/ UPPER LEVEL RIDGE OVER THE FOUR CORNERS AREA WILL SLOWLY SHIFT EASTWARD THROUGH THE WEEKEND.
603 PM CDT FRI AUG 28 2015 VFR WILL PREVAIL WITH INCREASING MID-HIGH CLOUDS AS WEAK MID AND UPPER LEVEL TROUGH AXIS SLIDES INTO THE REGION. S UPPER HIGH TODAY AND WILL DO SO THROUGH MID EVENING. AS A COASTAL MID LEVEL TROUGH CURRENTLY NEAR MOBILE ALABAMA DRIFTS WEST. THE EASTERN EXTENT OF THE UPPER HIGH OVER OUR AREA WILL WEAKEN AND ALLOW WEAK NORTH FLOW ALOFT OVER THE AREA THIS WEEKEND. A COLD FRONT WILL DRIFT SOUTHEAST NEAR OR INTO OUR NORTHWEST COUNTIES BY LATE IN THE WEEKEND.
943 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD ACROSS THE STATE AND DRIFT OFF THE EAST COAST OVER THE WEEKEND. MUCH WARMER WEATHER WILL MOVE INTO REGION FOR THE WEEKEND. 8H RIDGE AXIS SLIDING INTO EASTERN PA.
AS THE LOW LEVEL MOISTURE CONTINUES TO INCREASE LOOK FOR AN MVFR/IFR DECK BETWEEN 8 TO 12Z FROM EAST TO WEST AS THE MORNING PROGRESSES.
/ISSUED 419 PM CDT FRI AUG 28 2015/ LATEST UPPER AIR ANALYSIS/WATER VAPOR SATELLITE IMAGERY REVEALED AN ELONGATED MEAN MID/UPPER TROF AXIS EXTENDING FROM THE MID ATLANTIC SOUTHWEST INTO THE CENTRAL GULF OF MEXICO. COMPRISING THE MEAN TROF ARE TWO DISTINCT FEATURES. THE UPPER LOW OVER THE NC GULF IS FCST TO BEGIN LIFTING OUT TO THE NE TOMORROW. WHILE THE LOW/MID LEVEL E-W ORIENTED TROF AXIS TO OUR SOUTH ALSO LIFTS NORTH AND WEAKENS. THE INCREASING MSTR DEPTH COUPLED WITH ANOTHER UPPER LEVEL TROF DIGGING OVER TEXAS WILL PROMPT THE RETURN OF AT LEAST LOW END RAIN CHANCES OVER THE GULF WATERS AND ADJACENT COASTAL AREAS. DISCREPANCIES APPEAR AMONG THE GLOBAL MODELS WITH THIS SECONDARY TROF DIGGING INTO TEXAS. 13 A LIGHT ONSHORE FLOW WILL DEVELOP INTO TONIGHT AS HIGH PRESSURE DRIFTS EAST OF THE AREA.
722 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL DOMINATE THE REGION THROUGH SATURDAY AND PROVIDE THE REGION WITH DRY CONDITIONS AND CLEAR TO PARTLY CLOUDY SKIES.
710 PM CDT FRI AUG 28 2015 FOR 00Z TAFS /ISSUED 313 PM CDT FRI AUG 28 2015/ THE LARGE HIGH PRESSURE RIDGE AXIS EXTENDING SOUTHWEST OUT OF THE NORTHEAST U. TEMPS WERE GENERALLY IN THE LOW TO MID 80S.
1109 PM CDT FRI AUG 28 2015 THE MPX AREA THIS AFTERNOON SITS BETWEEN AN AREA OF LOW PRESSURE SLOWLY MOVING EAST ACROSS IOWA AND A LOW PRESSURE TROUGH THAT SITS FROM NODAK BACK INTO NW ONTARIO. OTHER AREA TO WATCH FOR PRECIP IS THE TROUGH TO OUR NORTH. THE MPX AREA WILL FIND ITSELF IN A CULL BETWEEN THE LOW MOVING ACROSS IOWA THE TROUGH TO THE NORTH. UPR LVL RIDGING CURRENTLY OVER THE WRN CONUS WILL STEADILY SLIDE EWD OVER THE WEEKEND AND SETTLE OVER THE ERN CONUS FOR MUCH OF THE UPCOMING WEEK. THE DEEP RIDGING ALOFT ORIGINATING FROM THE SWRN CONUS WILL ALSO ALLOW WARMER HIGH PRES TO TAKE UP RESIDENCE AT THE SFC. THIS WILL PREVENT AN APPROACHING COLD FRONT FROM THE CANADIAN ROCKIES THRU THE NRN PLAINS TO EXIT THE DAKOTAS.
703 PM CDT FRI AUG 28 2015 AFTERNOON SURFACE MAP SHOWING LOW PRESSURE CENTERED NEAR OMAHA, WITH A WARM FRONT EXTENDING NORTHEAST ACROSS IOWA AND A COLD FRONT INTO CENTRAL KANSAS. MAIN ACTIVITY OF SHOWERS AND THUNDERSTORMS HAS BEEN CLOSER TO THE WARM FRONT AND TRACKING NORTH OF OUR FORECAST AREA. A GENERAL EASTWARD PROGRESSION OF THE BOUNDARIES IS EXPECTED OVER THE NEXT SEVERAL HOURS, WITH THE COLD FRONT APPROACHING THE ILLINOIS/IOWA BORDER TOWARD 3-4 AM. LOW PRESSURE AREA AND ASSOCIATED FRONT WEST OF THE AREA WILL CONTINUE TO SLOWLY MOVE EAST AND INTO THE CWA DURING THE WEEKEND.
However, given the upper trough west of the area, a few showers and thunderstorms may linger across the area through the night. Overnight lows in the low to mid 70s are expected.
/ISSUED / THE SURFACE UPPER LEVEL RIDGE SITUATED ACROSS THE BIG BEND INTO THE ARKLATEX REGION WILL KEEP SE TEXAS MOSTLY CLEAR TONIGHT.
731 PM EDT FRI AUG 28 2015 23Z WATER VAPOR AND H4 RAP ANALYSIS SHOWS THE EASTERN UNITED STATES LONGWAVE TROUGH THAT WAS IN PLACE 24 HOURS AGO. HAS WEAKENED AND CLOSED OFF INTO A SEMI-CLOSED LOW OVER THE NORTH- CENTRAL GULF COAST. THIS UPPER LOW. THE GRADIENT ACROSS THE EASTERN GULF OF MEXICO WILL REMAIN WEAK THROUGH SATURDAY ON THE FAR SOUTHERN PERIPHERY OF A HIGH PRESSURE RIDGE CENTERED ACROSS THE MID-ATLANTIC STATES.
631 PM CDT FRI AUG 28 2015 LOW PRESSURE SYSTEM CONTINUES TO SLOWLY PUSH ACROSS THE CENTRAL PLAINS THIS AFTERNOON. ELSEWHERE THE RIDGE IS BUILDING ACROSS THE ROCKIES. TONIGHT WILL SEE THE CLOUDS SLOWLY CLEAR FROM WEST TO EAST AS THE LOW PRESSURE SYSTEM DRIFTS EASTWARD. TOMORROW WILL SEE WARM AIR ADVECTION AS ROCKIES RIDGE EXPANDS.
534 PM MDT FRI AUG 28 2015 PRETTY QUIET WEATHER THIS AFTERNOON AS THE UPPER LEVEL TROUGH.
752 PM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES WILL MOVE EAST TO ATLANTIC COAST. WEAK LOW PRESSURE OVER THE UPPER MISSISSIPPI VALLEY WILL MOVE EAST AND CONTINUE TO WEAKEN. A PERSISTENT SUBTROPICAL RIDGE WILL EXTEND FROM THE WESTERN ATLANTIC INTO A SIZABLE CHUNK OF THE EASTERN CONUS.
1252 AM EDT SAT AUG 29 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TONIGHT.
1049 PM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES WILL MOVE EAST TO ATLANTIC COAST. WEAK LOW PRESSURE OVER THE UPPER MISSISSIPPI VALLEY WILL MOVE EAST AND CONTINUE TO WEAKEN. A PERSISTENT SUBTROPICAL RIDGE WILL EXTEND FROM THE WESTERN ATLANTIC INTO A SIZABLE CHUNK OF THE EASTERN CONUS.
ABOVE NORMAL TEMPERATURES ARE FORECAST INTO SATURDAY AS HIGH PRESSURE AND OFFSHORE FLOW PERSIST. THE HIGH WILL MOVE EAST BY LATE SATURDAY. AND WITH OUR WARMER WATER TEMPS IT'S BEEN DIFFICULT FOR A SEA BREEZE TO GET GOING. RELIEF IS ON THE WAY WITH THE UPPER LEVEL HIGH WHICH HAS BEEN THE CULPRIT OF OUR HOT WEATHER FINALLY SHIFTING EAST INTO THE HIGH PLAINS BY TOMORROW MORNING.
A BACK DOOR COLD FRONT. DIFFERENCES BETWEEN THE MODELS ON PLACEMENT OF THE CENTER OF THE UPPER HIGH FOR SATURDAY MAKE IT DIFFICULT TO PIN DOWN THE DIRECTION OF STORM MOTION.
AN OUTFLOW BOUNDARY HAS PUSHED NORTH AND INTERACTED WITH THE COLD FRONT. A WEAK COLD FRONT WAS STILL MAKING SLOW MOVEMENT TO THE SOUTH ACROSS THE TEXAS PANHANDLE. MODEL RUNS CONTINUE THE RELATIVELY QUIET EXTENDED PERIODS WITH A MID TO UPPER-LEVEL RIDGE AXIS ALONG OR NEAR THE TEXAS/NEW MEXICO BORDER.
705 PM EDT FRI AUG 28 2015 LOW PRESSURE OVER IOWA WILL WEAKEN AS IT MOVES SLOWLY EAST THIS WEEKEND.
727 PM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE SLIDES EAST.
733 PM EDT FRI AUG 28 2015 HIGH PRESSURE WILL DOMINATE THE REGION THROUGH SATURDAY AND PROVIDE THE REGION WITH DRY CONDITIONS AND CLEAR TO PARTLY CLOUDY SKIES.
DEPARTURE OF PCPN OVER THE NEXT 1 TO 2 HRS WL LEAVE A STABILIZED ENVIRONMENT OVER LAND AREAS WITH THE POTENTIAL OF SOME ISOLD THUNDER DEVELOPING OVER THE RELATIVELY WARMER MARINE AREAS INCLUDING THE GULF STREAM OVERNIGHT.
903 PM CDT FRI AUG 28 2015 THE SURFACE UPPER LEVEL RIDGE SITUATED ACROSS THE BIG BEND INTO THE ARKLATEX REGION WILL KEEP SE TEXAS MOSTLY CLEAR TONIGHT.
MODELS CONTINUE TO SHOW TROUGH/BOUNDARY APPROACHING.
920 PM PDT FRI AUG 28 2015 ABOVE NORMAL TEMPERATURES ARE FORECAST INTO SATURDAY AS HIGH PRESSURE AND OFFSHORE FLOW PERSIST. THE HIGH WILL MOVE EAST BY LATE SATURDAY.
1156 PM CDT FRI AUG 28 2015 LOW PRESSURE SYSTEM CONTINUES TO SLOWLY PUSH ACROSS THE CENTRAL PLAINS THIS AFTERNOON. ELSEWHERE THE RIDGE IS BUILDING ACROSS THE ROCKIES. TONIGHT WILL SEE THE CLOUDS SLOWLY CLEAR FROM WEST TO EAST AS THE LOW PRESSURE SYSTEM DRIFTS EASTWARD. TOMORROW WILL SEE WARM AIR ADVECTION AS ROCKIES RIDGE EXPANDS.
1220 AM EDT SAT AUG 29 2015 HIGH PRESSURE WILL DOMINATE THE REGION THROUGH SATURDAY AND PROVIDE THE REGION WITH DRY CONDITIONS AND CLEAR TO PARTLY CLOUDY SKIES.
1009 PM EDT FRI AUG 28 2015 A STATIONARY FRONT OFF THE COAST WILL DRIFT SLOWLY EAST THROUGH THE WEEKEND AS HIGH PRESSURE BUILDS INTO THE AREA FROM THE NORTH. THE HIGH WILL CONTINUE OVER THE AREA THROUGH MID WEEK.
837 PM EDT SAT MAY 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE CENTRAL APPALACHIANS WILL DRIFT EAST TO THE DELMARVA COAST TONIGHT.
849 PM CDT SAT MAY 23 2015 HIGH PRESSURE CENTERED OFF THE MID-ATLANTIC COAST CONTINUES TO BRING DRY LOW LEVEL AIR AND LIGHT SE WINDS INTO CENTRAL ILLINOIS WITH DEWPOINTS PRIMARILY IN THE 40S. WHILE LOW PRESSURE MOVING EASTWARD INTO THE CENTRAL PLAINS BRINGS MOIST SOUTHERLY FLOW INTO THE SOUTHERN PLAINS. AS THE LOW EDGES CLOSER OVERNIGHT. LOWS WILL BE UP SEVERAL DEGREES FROM LAST NIGHT WITH TEMPERATURES REACHING THE LOW 60S. HIGH PRESSURE CENTERED OVER WEST VIRGINIA WILL CONTROL THE WEATHER ACROSS CENTRAL ILLINOIS TONIGHT. 19Z/2PM OBSERVATIONS CONTINUE TO SHOW AN EASTERLY COMPONENT TO THE LOW-LEVEL FLOW AROUND THE HIGH. AS WESTERN CONUS UPPER LOW GRADUALLY LIFTS TOWARD THE NORTHERN PLAINS.
A LONG WAVE UPPER LEVEL RIDGE WILL BUILD INTO THE WEST COAST INTO SUNDAY NIGHT. THIS WILL BRING IN WARMER AND MORE STABLE CONDITIONS WITH WEAK OFFSHORE LOW LEVEL FLOW PEAKING SUNDAY NIGHT.