Aikyam-Lab/Synoptic-Bench huggingface dataset:
519 PM CST Tue Feb 22 2022 (Tonight) Cold and breezy conditions this afternoon behind strong cold front, which has pushed south of the area this afternoon. Models remain in fairly good agreement with spreading scattered areas of light to moderate sleet, with occasional freezing rain, into eastern Oklahoma during the morning hours, moving into northwest Arkansas by late morning. Further south, the wintry precipitation will likely trend more toward freezing rain with ice accumulations likely across southeast Oklahoma and northwest Arkansas.
328 PM CST Tue Feb 22 2022 Cold front still off to the NW, slowing considerably in parallel flow aloft.
511 PM EST Tue Feb 22 2022 Widespread rain will transition to scattered showers this eve as low pressure completes passage.
305 PM CST Tue Feb 22 2022 Mainly sunny throughout western NE with very cold temperatures from the low single digits north central to 10 to 13 above southwest. The large, positively tilted upper trough across the western U. Wednesday into Wednesday night, the base of the upper trough will advance from srn CA and NV to across the Four Corners. A very strong 120-140KT jet max from New Mexico northeast to across the Lower Great Lakes will provide weak upper level divergence. As the upper trough moves over CO, Snowfall could reach a half inch to inch near and south of I80 late Wednesday night invof an H7 trough axis.
EVENING SURFACE ANALYSIS HAD A COLD FRONT DRAPED ACROSS THE CWA JUST SOUTH OF THE INTERSTATE 20 CORRIDOR. STRONG CONVECTION WAS NOTED THIS EVENING OVER CENTRAL TEXAS AHEAD OF THE APPROACHING LOW PRESSURE SYSTEM. IT HAS BEEN A NICE BUT SOMEWHAT WARM DAY TODAY AS A COLD FRONT SLIDES DOWN INTO OUR REGION. ADDITIONAL SHOWERS AND SOME THUNDERSTORMS LOOK TO INCREASE ON MONDAY AS AN UPPER LEVEL LOW SPINS ACROSS WEST CENTRAL TEXAS.
1159 PM EDT SUN APR 26 2015 AVIATION A RIDGE OF HIGH PRESSURE STRETCHING FROM HUDSON BAY TO MINNESOTA WILL MOVE SLOWLY EAST THE NEXT COUPLE DAYS. SEVERAL VORTICITY MAXIMA PINWHEELING AROUND THE WESTERN SIDE OF THE LARGE UPPER LOW TO OUR EAST WILL SLING CLOUDS IN FROM THE NORTHEAST TONIGHT AND MONDAY.
923 PM EDT SUN APR 26 2015 A TROUGH WILL PUSH SOUTH ACROSS THE EASTERN GREAT LAKES TONIGHT AND LINGER THROUGH MONDAY.
HIGH PRESSURE WILL RETURN BEGINNING MONDAY AND REMAIN THROUGH MOST OF THE WEEK. THE MINIMAL RADAR ECHO ACTIVITY LATE THIS AFTERNOON OVER MAINLY THE HIGHER TERRAIN HAS DISSIPATED.
MOIST UPGLIDE CONTINUES AT 5000-8000FT AND 10000-20000FT AND SHOULD CONTINUE THROUGHOUT THE NIGHT WITH SOME SLIGHT DRYING NOTED BELOW 10000FT CIGS MAY LIFT BUT AS UPPER TROUGH APPROACHES SATURDAY AFTERNOON CIG AT 5000-7000FT SHOULD RETURN.
ISSUED AT 300 CST FRI JAN 1 2016 THIS AFTERNOON A MID-UPPER LOW WAS CUT-OFF OVER NORTHERN CA WHILE A SHARP. A BLOCKING UPPER-DECK RIDGE EXTENDED FROM THE NORTHERN ROCKIES TO BRITISH COLUMBIA. A SE-SURGING COLD FRONT WILL CROSS KS & WITH CLEAR SKIES SAT NIGHT WILL BE CHILLY. WITH LOW PRESSURE DEVELOPING ALONG THE FRONT RANGE S/SE FLOW WILL RETURN TO ALL AREAS MON NIGHT. AS HIGH PRESSURE REMAINS SOUTH OF THE STATE.
951 PM EST FRI JAN 1 2016 A SERIES OF TROUGHS WILL TRAVERSE THE GREAT LAKES OVER THE WEEKEND BRINGING PERIODS OF LAKE EFFECT SNOW.
WINDS ARE N 10-15KT FOR A FEW THOUSAND FEET AND THEN BACK TO NW AND EVENTUALLY W AT 20-60 KTS UNDER THE CIRRUS AND 70-100KTS ABV THE HIGH CLOUDS. /ISSUED 335 PM CST FRI JAN 1 2016/ WATER VAPOR IMAGERY CONTINUES TO SHOW A REX BLOCK OVER THE WEST COAST AND A TROUGH OF LOW PRESSURE ALONG THE EAST COAST THIS AFTERNOON. AND TOPPED OUT IN THE LOWER 50S. TEMPERATURES MAY BE A COUPLE OF DEGREES WARMER.
623 PM EST FRI JAN 1 2016 A SERIES OF TROUGHS WILL TRAVERSE THE GREAT LAKES OVER THE WEEKEND BRINGING PERIODS OF LAKE EFFECT SNOW.
HOWEVER, THE SYNOPTIC MODELS ARE SHOWING PERHAPS A WEAK TROUGH MOVING ACROSS THE AREA, HELPING TO SUPPORT THESE SHOWERS. /ISSUED 348 PM EST FRI JAN 1 2016/ HIGH PRESSURE IS FINALLY BEGINNING TO BREAK DOWN AHEAD OF A COLD FRONT THAT IS MAKING ITS WAY TOWARD SOUTH FLORIDA. MODELS ARE SHOWING A THETA-E RIDGE SITTING OVER CENTRAL FLORIDA THROUGH THE WEEKEND.
EVENING SURFACE ANALYSIS DEPICTS A COLD FRONT MOVING SOUTHWARD CENTERED OVER NORTHERN TEXAS. NORTHERLY WINDS WILL INCREASE TO 15-20 KNOTS OFFSHORE AND NEAR 15 KNOTS NEAR SHORE OVERNIGHT AS HIGH PRESSURE ATTEMPTS TO BUILD INTO OUR REGION FROM THE WEST.
A STRONG UPPER HIGH OVER SOUTH-CENTRAL BRITISH COLUMBIA WILL WEAKEN ON SATURDAY.
HIGH PRESSURE CONTINUES OVER THE PACIFIC NORTHWEST WITH AN UPPER LEVEL LOW OVER THE WESTERN GREAT BASIN. THIS LOW WILL SHIFT NORTHWARD ON SATURDAY AND BE OVER THE FORECAST AREA BUT IT HAS VERY LITTLE MOISTURE ASSOCIATED WITH IT. SO WILL CONTINUE WITH LOW CLOUD STRATUS DECK TRAPPED BENEATH THE COLUMBIA BASIN INVERSION ALONG WITH SOME FREEZING FOG.
Near the surface, an area of high pressure is drifting slowly east across west Texas. Afternoon temperatures will continue to moderate this afternoon, helped along by some westerly downslope, into the lower 40s.
/ISSUED 348 PM EST FRI JAN 1 2016/ HIGH PRESSURE IS FINALLY BEGINNING TO BREAK DOWN AHEAD OF A COLD FRONT THAT IS MAKING ITS WAY TOWARD SOUTH FLORIDA. MODELS ARE SHOWING A THETA-E RIDGE SITTING OVER CENTRAL FLORIDA THROUGH THE WEEKEND.
HIGH PRESSURE CONTINUES TO BUILD IN FROM THE WEST AND WILL ALLOW TEMPERATURES TO FALL INTO THE 20S BY MORNING.
I ANTICIPATE THE HINDERED RADIATIONAL COOLING CONDITIONS WILL RESULT IN LOWS TONIGHT A BIT OF WARMER THAN BLENDED GUIDANCE AND THE FORECAST WAS TRENDED THAT WAY. TOMORROW SHOULD BE A BIT WARMER THAN TODAY. ALTHOUGH WE CANNOT RULE OUT A FEW LIGHT SPRINKLES OR SHOWERS MAKING IT UP TO THE HIGHWAY 84 CORRIDOR DURING THIS TIME.
355 PM MST FRI JAN 1 2016 I70 NEARLY DELINEATES THE FRIGID TEMPS THAT CUTS ACROSS THE NRN VALLEY COMPARED WITH THE WARMER VALUES OVER THE CENTRAL AND SRN VALLEYS. WARMER AIR ALOFT MEANS STRONG STABLE LAYER AT THE SURFACE WITH HARDLY ANY WIND OR MIXING. ISENTROPIC UPGLIDE ACCOMPANIES THE WARMER AIR AND MANAGES TO GENERATE SOME HIGH CLOUDS. A FEW FLURRIES ARE POSSIBLE FOR THE HIGHER ELEVATIONS OF THE ABAJOS BUT CONFIDENCE IS SO LOW. AN ACTIVE PERIOD LOOKS TO BE IN STORE FOR MUCH OF THE CWA AS LOW PRESSURE TO OUR NORTHWEST CONTINUES TO DRIFT TO THE PACIFIC NORTHWEST BRINGING RIDGING TO OUR AREA. THIS WILL BE A 'DIRTY' RIDGE AS MOISTURE FROM THE PACIFIC GETS ENTRAINED OVERHEAD KEEPING CLOUDS IN THE PICTURE THROUGH FRIDAY.
1005 PM EST FRI JAN 1 2016 HIGH PRESSURE WILL BUILD SOUTH OF THE AREA INTO SATURDAY.
TEMPERATURES WERE RUNNING A COUPLE OF DEGREES WARMER THIS EVENING BUT WITH CONTINUED NORTH WIND THROUGH THE NIGHT FORECAST LOWS WERE STILL ON TRACK. I ANTICIPATE THE HINDERED RADIATIONAL COOLING CONDITIONS WILL RESULT IN LOWS TONIGHT A BIT OF WARMER THAN BLENDED GUIDANCE AND THE FORECAST WAS TRENDED THAT WAY. TOMORROW SHOULD BE A BIT WARMER THAN TODAY. ALTHOUGH WE CANNOT RULE OUT A FEW LIGHT SPRINKLES OR SHOWERS MAKING IT UP TO THE HIGHWAY 84 CORRIDOR DURING THIS TIME.
635 PM EST FRI JAN 1 2016 COOL CANADIAN HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE AREA OVER THE NEXT SEVERAL DAYS. A SHALLOW SFC TROF IS FORECAST TO RIPPLE ACROSS THE OHIO RIVER VALLEY. MIN TEMPS ARE FORECAST TO RANGE FROM THE LOW 20S ACROSS THE RIDGES TO THE UPPER 20S WITHIN THE VALLEYS. FOOTHILL AND PIEDMONT AREAS SHOULD SEE LOWS IN THE LOW TO THE MID 30S.
649 PM EST FRI JAN 1 2016 A COLD FRONT WILL REMAIN OFFSHORE AS COOL HIGH PRESSURE BUILDS INTO THE REGION FROM THE WEST.
433 PM MST FRI JAN 1 2016 NO BIG WEATHER CONCERNS THE NEXT SEVERAL DAYS AS AN UPPER LEVEL RIDGE WILL BE THE MAIN DRIVER OF WEATHER CONDITIONS ACROSS THE REGION.
1010 PM EST FRI JAN 1 2016 COOL HIGH PRESSURE BUILDS INTO THE REGION FROM THE WEST TO BEGIN THE WEEKEND.
544 PM CST FRI JAN 1 2016 HIGH PRESSURE WILL CONTINUE OVER THE AREA THROUGH THE PERIOD.
820 PM MST FRI JAN 1 2016 CONTINUED THE TREND OF LOWERING OVERNIGHT LOWS IN THE HIGH MOUNTAIN VALLEYS. GIVEN LACK OF MIXING THROUGH TOMORROW ALSO LOWERED THE HIGH TEMPS SEVERAL DEGREES IN THOSE HIGH MOUNTAIN VALLEYS. TEMPERATURES IN ZONES 30/32 ALREADY BELOW ZERO SO HAVE DROPPED THE EXPECTED LOWS IN THE HIGH VALLEYS OVERNIGHT. FCST REGION WILL REMAIN UNDER LIGHT WEST-NORTHWESTERLY FLOW ALOFT WITH A SHORT WAVE UPPER RIDGE BUILDING UP FROM NEW MEXICO ON SATURDAY.
BUT THE BOUNDARY LYR FLOW QUICKLY BACKS TO THE SW OVERNIGHT AHEAD OF A DEEPENING NRN GREAT LAKES TROUGH.
433 PM MST FRI JAN 1 2016 UPDATED AVIATION DISCUSSION I70 NEARLY DELINEATES THE FRIGID TEMPS THAT CUTS ACROSS THE NRN VALLEY COMPARED WITH THE WARMER VALUES OVER THE CENTRAL AND SRN VALLEYS. WARMER AIR ALOFT MEANS STRONG STABLE LAYER AT THE SURFACE WITH HARDLY ANY WIND OR MIXING. ISENTROPIC UPGLIDE ACCOMPANIES THE WARMER AIR AND MANAGES TO GENERATE SOME HIGH CLOUDS. A FEW FLURRIES ARE POSSIBLE FOR THE HIGHER ELEVATIONS OF THE ABAJOS BUT CONFIDENCE IS SO LOW. AN ACTIVE PERIOD LOOKS TO BE IN STORE FOR MUCH OF THE CWA AS LOW PRESSURE TO OUR NORTHWEST CONTINUES TO DRIFT TO THE PACIFIC NORTHWEST BRINGING RIDGING TO OUR AREA. THIS WILL BE A 'DIRTY' RIDGE AS MOISTURE FROM THE PACIFIC GETS ENTRAINED OVERHEAD KEEPING CLOUDS IN THE PICTURE THROUGH FRIDAY.
635 PM EST FRI JAN 1 2016 HIGH PRESSURE WILL BUILD SOUTH OF THE AREA INTO SATURDAY AS A TROUGH OF LOW PRESSURE REMAINS OVER EASTERN CANADA.
A DRY NORTHERLY FLOW WILL CONTINUE OVER THE AREA WITHIN THE LOW LEVELS MAINTAINING VFR.
THE EASTERN EDGE OF A MIDDLE AND UPPER RIDGE AXIS IS POSITIONED ACROSS SOUTH FLORIDA AND THE KEYS. AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. LATEST AVAILABLE LAND AND MARINE SURFACE ANALYSIS AND OBSERVATIONS AS OF 900 PM DETAIL A SURFACE COLD FRONT FROM THE WESTERN ATLANTIC SOUTHWEST ACROSS CENTRAL FLORIDA TO THE BAY OF CAMPECHE. TEMPERATURES ACROSS THE ISLAND REMAIN IN THE HI 70S WITH DEWPOINTS IN THE LOWER TO MID 70S.
Tonight's mins should be near or perhaps just a wee bit above those of this morning, as 03z temps are running a degree or two warmer than those of 24 hours ago, with a similar mixing/wind trend expected. SHORT TERM: (Through Late Tonight) Generally westerly flow with some variations slightly to the south or north will prevail tonight as a weak trof of low pressure moves through the region. mainly in the low to mid 20s.
953 PM EST FRI JAN 1 2016 HIGH PRESSURE WILL BUILD SOUTH OF THE AREA INTO SATURDAY.
THE FIRST WEEK OF 2016 WILL SETTLE INTO A COOLER PATTERN. THE BEGINNING OF THE FIRST FULL WEEK OF THE NEW YEAR WILL START OFF UNDER A DEEPENING UPPER TROUGH. A BUILDING UPPER RIDGE OVER THE PACIFIC NORTHWEST WILL FURTHER AMPLIFY THE TROUGH MOVING THROUGH THE NORTHEAST AND THE MID ATLANTIC REGIONS.
THE 00Z SOUNDING CONTINUED TO DEPICT A STRONG INVERSION IN THE LOWER LEVELS OF THE COLUMN. SOME DRIER AIR HAS WORKED INTO THE LOWER LEVELS. UPPER LEVEL RIDGE THAT WAS CENTERED OVER THE WESTERN ATLANTIC AND BARELY EXTENDING INTO THE GULF OF MEXICO HAS NOW BEEN PUSHED WELL SOUTH INTO THE CARIBBEAN. THE EASTERN HALF OF THE UNITED STATES UNDER UPPER LEVEL TROUGH WHILE JUST WEST OF THE LOCAL AREA IS A WEAK RIDGE AND FINALLY CLOSED LOW WEST OF THE ROCKIES. FRONTAL BOUNDARY THATS BEEN THE FOCUS OF RAINFALL HAS DRIFTED SOUTHWARD WITH THE SHEAR ZONE BETWEEN THE TROUGH AND RIDGES.
541 PM CST FRI JAN 1 2016 AT H5 HUGE RIDGE OVER THE WESTERN CONUS. BLOCKING PATTERN WITH UPPER LOW ANCHORED OVER NORTHERN CALIFORNIA AND HIGH OVER NORTHERN WASHINGTON. UPPER LOW OVER HUDSON BAY WITH TROUGH INTO THE EASTERN CONUS. THE RIDGE WILL CONTINUE OVER THE NEXT 24 HOURS. A 500HPA RIDGE. THINKING WARMING PATTERN AND 15 TO 20KT WINDS AT 850HPA WILL BE ENOUGH TO GO ON THE HIGH END OF GUIDANCE FOR MIN TEMPS. KEPT WITH SLIGHTLY COOLER TEMPS IN THE RIVER VALLEYS WHERE SURFACE WINDS WILL LIKELY BE LIGHTER THAN SURROUNDING AREAS AND IN THE PANHANDLE WHERE LOWS HAVE BEEN CONSISTENTLY COLDER THAN THE SANDHILLS.
647 PM EST FRI JAN 1 2016 HIGH PRESSURE MOVING INTO THE REGION WILL MEAN FEWER CLOUDS AND FLURRIES THROUGH THE WEEKEND.
TEMPERATURES HAVE PLUMMETED IN SOME OF THE HIGH VALLEYS SO HAVE LOWERED OVERNIGHT LOWS. HIGH PRESSURE WILL MAINTAIN MOSTLY CLEAR SKIES AND STRONG INVERSIONS AT HELENA AND BOZEMAN WILL LIKELY RESULT IN A RETURN OF OVERNIGHT FOG. HIGH PRESSURE ALOFT CONTINUES TO PROVIDE DRY AND STABLE CONDITIONS.
DRY AIR WILL PERSIST IN THE LOW/MID LEVELS. WITH THE UPSTREAM MID-LVL VORT/TROUGH ARRIVING THIS EVENING. A SECONDARY MID-LVL TROUGH IS PROGGED TO DEVELOP OVER MANITOBA EARLY SAT. BUT FORTUNATELY BROAD SFC RIDGING CENTERED OVER THE CENTRAL ROCKIES AND STRETCHING FROM THE CANADIAN ROCKIES TO THE WESTERN GULF OF MEXICO. WHICH COULD RESULT IN WARMER LOWS IN THE LOW/MID 20S.
UPPER LOW IN NORTHERN NV/CA WILL LIFT NORTH THROUGH THE AREA ON SATURDAY. SCATTERED MID-LEVEL CLOUDS SPREADING NWD FROM NEVADA AFTER 12Z AS UPPER LOW MOVES NWD INTO CENTRAL OREGON.
502 PM MST FRI JAN 1 2016 TEMPERATURES IN ZONES 30/32 ALREADY BELOW ZERO SO HAVE DROPPED THE EXPECTED LOWS IN THE HIGH VALLEYS OVERNIGHT. FCST REGION WILL REMAIN UNDER LIGHT WEST-NORTHWESTERLY FLOW ALOFT WITH A SHORT WAVE UPPER RIDGE BUILDING UP FROM NEW MEXICO ON SATURDAY.
UPPER LEVEL NORTHWEST FLOW WILL REMAIN OVER THE AREA TONIGHT AND SATURDAY BEFORE RIDGING BUILDS OVER THE PLAINS.
WITH MANY LOCATIONS ACROSS THE NORTH AT OR BELOW FREEZING. A RESIDUAL COLD FRONT WAS STILL SLOWLY SINKING SOUTH THROUGH THE FLORIDA PANHANDLE.
900 PM EST FRI JAN 1 2016 A COLD FRONT CONTINUES TO SLUGGISHLY MOVE SOUTHWARD THIS EVENING. BRINGING SLIGHTLY COOLER/DRIER AIR. AND A COOLER/WETTER WEEKEND.
1045 PM EST FRI JAN 1 2016 RADAR AND SFC OBS SHOW THE COLD FRONT PUSHING SE ACROSS EC FL THIS EVENING. THE FIRST "COOLDOWN" IN A LONG TIME WL OCCUR AS TEMPS FALL INTO THE LOWER TO MID 60S BY DAYBREAK SAT AND ONLY RECOVER MINIMALLY 65 TO 73 DEGREES DURING THE DAY DUE TO SIGNIFICANT LINGERING CLOUDINESS ALONG WITH THE NORTHERLY WINDS CONTINUING TO ADVECT A POST FRONTAL AIRMASS SOUTHWARD. COLD FRONT HAS JUST PUSHED SOUTH OF NOAA BUOY 009 WITH WIND SHIFT OUT OF THE NORTH.
337 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL CONTINUE TO PROVIDE SEASONABLY WARM AND DRY WEATHER INTO THE WEEKEND.
129 AM EDT FRI JUL 24 2015 HIGH PRESSURE OVER OHIO WILL MOVE TO THE EAST COAST THROUGH SATURDAY.
HIGH PRESSURE WILL BE LOCATED OVER THE REGION TODAY. THE HIGH WILL BE PUSHED OFF TO THE EAST TONIGHT. AS THE HIGH CONTINUES TO PUSH TO THE EAST ON SATURDAY.
HIGH PRESSURE WILL CONTINUE TO DOMINATE OVER THE NEXT COUPLE OF DAYS WITH ABOVE NORMAL TEMPERATURES AND DRY CONDITIONS.
330 AM EDT FRI JUL 24 2015 HIGH PRESSURE OVER THE AREA TODAY AND WEAKENS OVER THE WEEKEND.
143 AM EDT FRI JUL 24 2015 LOW PRESSURE PUSHES OFF THE COAST LATE FRIDAY MORNING. HIGH PRESSURE BUILDS OVER THE AREA FRIDAY THROUGH THE UPCOMING WEEKEND. WILL KEEP THE LOW CHC POPS THERE. HIGH PRESSURE BUILDING DOWN FROM THE NORTH WILL PREVAIL FROM FRIDAY THROUGH THE WEEKEND, WITH GRADUALLY WARMING TEMPERATURES AND A DRIER AIRMASS GRADUALLY PUSHING FARTHER SOUTH ACROSS THE REGION. LOOK FOR WARM, PLEASANT DAYS UNDER A PARTLY TO MOSTLY SUNNY SKY (MORE CLOUDS SE ON FRI COINCIDENT WITH LINGERING MID- UPPER TROUGH AND LOW PRESSURE OFFSHORE).
330 AM CDT FRI JUL 24 2015 A MID AND UPPER LEVEL RIDGE.
401 AM CDT FRI JUL 24 2015 KNOCKING ON THE DOOR OF TRIPLE DIGIT HEAT AGAIN TODAY AS THE UPPER LEVEL RIDGE IS EXPECTED TO BUILD AND EXPAND FURTHER INTO THE FOUR STATE REGION FROM W CNTRL TX.
429 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TODAY AND WILL REMAIN OVER THE AREA THROUGH THE WEEKEND.
122 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL CONTINUE OVER THE AREA TONIGHT AND FRIDAY WITH TRANQUIL WEATHER AND COMFORTABLE TEMPERATURES FOR LATE JULY. LOW TEMPERATURES WILL DROP INTO THE LOWER 60S. SURFACE ANALYSIS DEPICTS HIGH PRESSURE CENTERED OVER THE SOUTHERN GREAT LAKES/MIDWEST REGION. HIGH PRESSURE CENTER WILL DRIFT SLOWLY EASTWARD ON FRIDAY AND UPPER LEVEL RIDGING WILL ALSO PUSH INTO THE REGION WHICH WILL TREND OUR AREA TOWARD WARMER AND MORE HUMID CONDITIONS. COLD FRONT. THOUGH FOLD OVER OF LOW LEVEL THETA-E RIDGE AND NEAR 70F SFC DEWPOINTS SUGGEST POTENTIAL FOR MODERATE BOUNDARY LAYER DESTABILIZATION ALONG THE MAIN FRONT OR LEADING CONVECTIVE OUTFLOW BY MID AFTN-EARLY EVE.
WILL DETERMINE IF WE GET FOG LATER TONIGHT AS HIGH PRESSURE BUILDS OVERHEAD. AND THEN DRIER AND COOLER AIR ARRIVES MID TO LATE IN THE UPCOMING WEEK. AS WE REMAIN ON THE NORTHERN PERIPHERY OF THE SOUTHERN CONUS MID LEVEL RIDGE.
145 AM EDT FRI JUL 24 2015 HIGH PRESSURE OVER THE AREA TODAY AND WEAKENS OVER THE WEEKEND. INITIALLY HIGH PRESSURE DOMINATES THE SURFACE.
137 AM EDT FRI JUL 24 2015 HIGH PRESSURE, WILL KEEP MOST OF CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA, PLEASANT AND DRY INTO SATURDAY.
THE SEABREEZE WILL FORM ALONG THE MISSISSIPPI COAST AND THE LOW LEVEL JET WILL WEAKEN.
HIGH PRESSURE CENTERED OVER THE EASTERN LAKES WILL CONTINUE TO SLOWLY DRIFT EAST TODAY PROVIDING ONE MORE DRY DAY. INTO THE 60S TODAY BUT INTO THE LOWER/MID 70S ON SATURDAY. TEMPS WILL BE COOLER NEAR THE LAKE SATURDAY AFTERNOON HIGHS WILL LIKELY REACH THE MID 80S BUT LOWER CONFIDENCE ACROSS THE SOUTHERN CWA.
THE LOW LEVEL DRYING. PASSAGE OF THIS WAVE APPEARS TO TEMPORARILY DIVERT THE MONSOON MOISTURE PLUME EASTWARD AWAY FROM THE FCST AREA ALLOWING DRIER AND WARMER AIR TO SPREAD OVER THE AREA. GUSTY MICROBURST WINDS AND LIGHTNING MOST LIKELY MAIN PRODUCTS OF THIS HIGH BASED CONVECTION.
123 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL BUILD IN THROUGH THE END OF THE WEEK. A WARM FRONT APPROACHES FROM THE SOUTHWEST SATURDAY NIGHT.
An upper level trough along or just off the Atlantic seaboard will continue to deepen while a strong ridge remains centered over Texas placing our local region in deep northwest flow. At the surface, a weak area of low pressure will move southeastward off the coast of South Carolina dragging a frontal boundary southward into our CWA by this evening. Despite the high prospects for rain, max temps should still reach the lower to mid 90s with peak heat indices in the 100 to 105 degree range.
631 AM EDT FRI JUL 24 2015 HIGH PRESSURE OVER THE AREA TODAY WEAKENS OVER THE WEEKEND.
HIGH PRESSURE ACROSS THE SOUTHERN GREAT LAKES WILL KEEP THINGS DRY THROUGH EARLY SATURDAY.
629 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY WEATHER AND SEASONABLE TEMPERATURES TODAY AND TONIGHT. THIS HIGH WILL SHIFT OFF TO THE EAST FOR SATURDAY AS AN UPPER LEVEL DISTURBANCE APPROACHES THE GREAT LAKES REGION.
223 AM PDT FRI JUL 24 2015 SOME LINGERING CLOUDS WILL PERSIST TODAY AS AN UPPER LOW WEAKENS AND DRIFTS EASTWARD.
512 AM EDT FRI JUL 24 2015 UPPER LEVEL LOW PRESSURE WILL MOVE ACROSS THE AREA TODAY THROUGH TONIGHT.
BUT GLOBAL GUIDANCE STILL SUGGESTS THE POSSIBILITY OF A WEAK INVERTED TROUGH MOVING THROUGH EASTERN ARIZONA FRIDAY AFTERNOON. CONSEQUENTLY TEMPERATURES WILL CLIMB SLIGHTLY AND APPROACH THE 110 DEGREE MARK IN THE NORMALLY WARMER LOCATIONS. BUT IT WILL BE DEPENDENT ON THE HOW FAR WEST THE RIDGE OF HIGH PRESSURE EXPANDS.
328 AM EDT FRI JUL 24 2015 LOW PRESSURE WILL SLOWLY DROP SOUTH THROUGH THE REGION TODAY CAUSING SCATTERED SHOWERS AND THUNDERSTORMS. HIGH PRESSURE WILL BUILD IN FROM THE NORTHEAST TONIGHT AND SATURDAY.
421 AM EDT FRI JUL 24 2015 HIGH PRESSURE, WILL KEEP MOST OF CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA, PLEASANT AND DRY INTO SATURDAY.
WITH RAIN CHANCES COMING TO AN END AS THE UPPER RIDGE AXIS OUT W STRENGTHENS/EXPANDS JUST TO THE E. THE LATTER HALF OF THE GLOBAL MODEL RUNS KEEP THE UPPER RIDGE PATTERN WELL CENTERED ACROSS THE SRN PLAINS/LOWER MS VALLEY REGIONS.
a fairly quiet night is expected across the fcst area despite the gradual northward lifting of a warm front now positioned across the Southern Plains. and have gone with a dry fcst through the night as the 850 ridge axis sharpens overhead. aforementioned warm front to continue lifting north through the area. with all signs pointing towards a very warm afternoon across western Missouri and eastern Kansas as low-level moisture pools ahead of cold front that should stall across southern Nebraska. which will be a few degrees cooler than the those experienced with last week/s heat event. there will be growing concerns for heavy rain/flash flooding as low-level moisture transport increases in response to the low-level jet. much of the extended time frame looks unsettled as no real breakdown of the Southern Plains upper ridge is expected at this time.
654 AM EDT FRI JUL 24 2015 LOW PRESSURE ALONG THE NORTH CAROLINA COAST WILL GRADUALLY MOVE EAST NORTHEAST THROUGH TONIGHT. HIGH PRESSURE WILL BUILD IN FROM THE NORTHWEST TODAY AND INFLUENCE THE WEATHER THROUGH THE WEEKEND.
QUASI-STATIONARY BOUNDARY REMAINS SITUATED OVER THE TENNESSEE VALLEY THIS MORNING, AND IS EXPECTED TO FINALLY DRIFT OFF TO THE SOUTH, ALLOWING SLIGHTLY COOLER, DRIER AIR TO FILL IN BEHIND. EXPECT DRY WEATHER TO LAST THROUGH THE WEEKEND AS AN UPPER RIDGE BUILDS TO OUR WEST.
A WAVE OF LOW PRESSURE TRACKING EASTWARD ALONG A STALLED FRONT ACROSS NORTHERN SOUTH CAROLINA WILL TRACK SLOWLY OFF THE CAROLINA COAST TODAY. WEAK HIGH PRESSURE WILL EXTEND INTO THE REGION FROM THE NORTH THROUGH THE UPCOMING WEEKEND. LOWS TONIGHT IN THE LOWER 60S ACROSS THE VA BORDER COUNTIES AND LOW 70S ELSEWHERE. THIS WILL BE COURTESY OF THE MID/UPPER TROUGH WHICH WILL BE LOCATED OVER THE EASTERN SEABOARD WITH THE TROUGH AXIS OFFSHORE.
422 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL KEEP WARM AND DRY WEATHER IN PLACE TODAY THROUGH SATURDAY MORNING.
327 AM EDT FRI JUL 24 2015 HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY WEATHER AND SEASONABLE TEMPERATURES TODAY AND TONIGHT. THIS HIGH WILL SHIFT OFF TO THE EAST FOR SATURDAY AS AN UPPER LEVEL DISTURBANCE APPROACHES THE GREAT LAKES REGION.
248 AM CDT FRI JUL 24 2015 HIGH PRESSURE WILL REMAIN IN CONTROL OF THE WEATHER ACROSS CENTRAL AND SOUTHEAST ILLINOIS FOR ONE MORE DAY. THE LOW LEVEL FLOW TRENDING FROM EASTERLY TO SOUTHERLY. ON THE BACK SIDE OF THE DEPARTING HIGH PRESSURE RIDGE. UPPER PATTERN CONTINUES TO SHIFT TO A WARMER AND MORE HUMID PATTERN WHICH WILL PERSIST FOR SEVERAL DAYS. UPPER RIDGE CURRENTLY BUILDING FROM THE SOUTHERN PLAINS WILL GRADUALLY BECOME MORE WEST-EAST ACROSS THE SOUTHERN U.
628 AM EDT FRI JUL 24 2015 HIGH PRESSURE, WILL KEEP MOST OF CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA, PLEASANT AND DRY INTO SATURDAY.
THESE DRY CONDITIONS WILL BE ACCOMPANIED BY WARMER TEMPERATURES AND BREEZY AFTERNOONS.
WEAK HIGH PRESSURE WILL EXTEND INTO THE REGION FROM THE NORTH THROUGH THE UPCOMING WEEKEND. DRIER LOW-LEVEL AIR TO OUR NORTH WILL FILTER IN TODAY AS HIGH PRESSURE BUILDS ACROSS THE OH VALLEY AND DEWPOINTS FALL INTO THE MID AND UPPER 60S. LOWS TONIGHT WILL BE A FEW DEGREES COOLER THAN THOSE OF THIS MORNING. THIS WILL BE COURTESY OF THE MID/UPPER TROUGH WHICH WILL BE LOCATED OVER THE EASTERN SEABOARD WITH THE TROUGH AXIS OFFSHORE.
A DISTURBANCE ROTATING AROUND AN INCOMING UPPER TROUGH WILL GIVE A CHANCE OF SHOWERS TO THE AREA ON SATURDAY.
235 AM EDT FRI JUL 24 2015 WEAK/MOISTURE-STARVED WARM FRONT CONTINUES TO GRADUALLY LIFT NE THRU OUR CWA EARLY THIS MORNING. WARM FRONT THEN LIFTS NE OF OUR CWA BY MIDDAY OR SO. WEAK SURFACE RIDGING BUILDS BACK INTO THE AREA IN THE WAKE OF THE WARM FRONT AND IN ADVANCE OF THE APPROACHING COLD FRONT. UPSTREAM COLD FRONT SLIDES THRU MICHIGAN TONIGHT. THE NEXT COLD FRONT TO MOVE THROUGH THE FORECAST AREA, IS A PRETTY TYPICAL COLD FRONT WITH TEMPERATURES ENDING UP IN THE LOWER TO MID 70S ON THE BACK SIDE OF THE FRONT.
DRY UPPER TROUGH MOVING INLAND OVER THE NORTH STATE THIS MORNING.
THE FRONT WILL PUSH JUST SOUTH OF THE AREA FRIDAY NIGHT WITH HIGH PRESSURE RIDGING INTO THE REGION FROM THE NORTH SATURDAY. AN UPPER RIDGE WILL AMPLIFY OVER THE CENTRAL PLAINS THROUGH TONIGHT WITH NORTHWESTERLY FLOW ALOFT ACROSS THE SOUTHEASTERN STATES. OVERNIGHT LOWS IN THE LOW TO MID 70S STILL LOOKS REASONABLE. SATURDAY STILL APPEARS DRY WITH HIGH PRESSURE RIDGING INTO THE AREA FROM THE NORTH BEHIND THE FRONT. THE MEDIUM-RANGE MODELS DISPLAY UPPER TROUGHING JUST OFF THE SOUTHEAST COAST WITH RIDGING EXTENDING FROM THE SOUTHERN PLAINS INTO THE LOWER MISSISSIPPI VALLEY.
555 AM EDT FRI JUL 24 2015 UPPER LEVEL LOW PRESSURE WILL MOVE ACROSS THE AREA TODAY THROUGH TONIGHT.
329 AM MDT FRI JUL 24 2015 VIRTUALLY NO CHANGE IN THE LARGE SCALE FLOW WITH A STATIONARY UPPER RIDGE OVER THE SOUTH CENTRAL CONUS FLANKED BY TROUGHS NEAR THE WEST AND EAST COASTS. THE LATEST SHORT RANGE MODELS REFLECT LITTLE OVERALL CHANGE WITH THE UPPER RIDGE PARKED OVER SOUTH CENTRAL CONUS.