Aikyam-Lab/Synoptic-Bench huggingface dataset:
OTHER ISOLATED SHOWERS AND THUNDERSTORMS DEVELOP ALONG THE COLD FRONT DROPPING THROUGH THE SOUTH DAKOTA. LESS STORM COVERAGE WILL HOLD UP THE PROGRESS OF THE COLD FRONT WHICH WILL BECOME STATIONARY ACROSS THE SWRN NEB AND BECOME THE FOCUS FOR SEVERE WEATHER SATURDAY AFTN. THE LATEST MODEL BLEND PLUS BIAS CORRECTION SHOWS DEW POINTS IN THE LOWER 50S ALONG I-80 SATURDAY AFTERNOON WHILE THE MET GUIDANCE SHOWS MID 50S.
1118 PM EDT FRI MAY 6 2016 A SLOW MOVING UPPER LOW WILL FINALLY MOVE EAST OFF THE COAST SATURDAY.
A COLD FRONT EXTENDED FROM NORTHERN MN TO NORTHERN CO AND WAS PUSHING SOUTHEAST. FORECAST FOCUS ON COLD FRONT PUSHING ACROSS THE AREA WITH SCATTERED SHOWERS AND A FEW THUNDERSTORMS. A MILD NIGHT AHEAD OF A COLD FRONT THAT WILL BE APPROACHING FROM THE NORTHWEST. COOLER AS THE FRONT CONTINUES TO SETTLE SOUTHWARD ACROSS THE CWA ACCOMPANIED BY SCATTERED SHOWERS AND A FEW THUNDERSTORMS.
Lows tonight will be around 10 degrees warmer than last night, with readings in the lower to middle 50s. Highs on Saturday will climb into the lower to middle 80s.
1043 PM CDT FRI MAY 6 2016 WEAK SHORT WAVE AND ATTENDANT SURFACE COLD FRONT WILL MOVING SOUTHWARD ACROSS THE FORECAST AREA TONIGHT. THE HIGHWAY 14 CONVECTION WOULD BE ASSOCIATED WITH LOW LEVEL CONVERGENCE ALONG THE COLD FRONT. AND KEPT THE HIGHER SCATTERED POPS IN OUR NORTHERN ZONES CLOSER TO THE ACTUAL FRONT. HIGHS SATURDAY WILL BE COOLER.
Upper level ridge over western Kansas will gradually build eastward to the east overnight. On Saturday a upper level trough will move southeast across the Great Lakes while the upper low over southern California moves east into the Rockies. Moisture return will be focused across the High Plains and will be limited in eastern and northern Kansas in the afternoon hours so at this time it will leave the forecast dry. Lows tonight will be mild in the mid and upper 50s with the lower boundary layer remaining mixed. Highs on Saturday will be warmest south of the frontal boundary with readings in the lower to middle 80s.
AN UPPER LEVEL LOW CURRENTLY OVER THE GREAT BASIN WILL CONTINUE TO GRADUALLY MOVE NORTH AND EAST TOWARDS WYOMING SENDING MOISTURE AND ENERGY TOWARDS OUR AREA. UPPER LEVEL LOW CURRENTLY OVER THE GREAT BASIN WILL CONTINUE TO SPIN MOISTURE AND ENERGY UP FROM THE SOUTH AS IT MOVES INTO SOUTHERN WYOMING. KEPT CHANCE TO LIKELY POPS IN PLACE FOR THE LOWER ELEVATIONS AND FOOTHILLS WITH CATEGORICAL FOR THE BIGHORN MOUNTAINS. OTHERWISE THE REST OF THE AREA WILL BE UNDER HIGH PRESSURE ALOFT AND AT THE SURFACE FOR MAINLY DRY BUT OCCASIONALLY CLOUDY CONDITIONS. PRECIPITATION AMOUNTS DO NOT APPEAR TO BE HIGH WITH THIS UPPER LEVEL LOW BUT MOST LOCATIONS SHOULD GET ANOTHER HEALTHY DOSE OF RAIN FROM 0. MOSTLY IN THE HIGHER ELEVATIONS AND THE WESTERN LOCALES WHERE INSTABILITY WILL BE THE GREATEST.
A COLD FRONT WILL THEN BRING SHOWERS AND ISOLATED THUNDERSTORMS SATURDAY AFTERNOON AND SATURDAY NIGHT. DRY AIR FEEDING INTO THE LOW LEVELS AHEAD OF IT IS ERODING SATURATION AND THE UPPER LOW ASSOCIATED WITH IT IS ALREADY BEGINNING TO FILL. IN THE WAKE OF THE UPPER LOW. DRY CONDITIONS WILL BE RELATIVELY SHORT LIVED WITH A COLD FRONT MOVING INTO THE REGION FROM THE NORTHWEST SATURDAY AFTERNOON. COLD FRONT WILL COMPLETE ITS PASSAGE ACROSS THE REGION SATURDAY EVENING.
941 PM EDT FRI MAY 6 2016 AN UPPER LEVEL LOW WILL BEGIN TO LIFT AWAY FROM THE AREA TONIGHT.
A LARGE UPPER LOW OVER SOUTHERN CALIFORNIA CONTINUES TO SEND MOISTURE THROUGH THE AREA ON AN EAST TO NORTHEAST FLOW. TOMORROW THE UPPER LOW WILL CREEP SLIGHT EASTWARD BUT WILL STILL SEND MOISTURE THROUGH THE SOUTHEASTERN FRINGE OF THE FORECAST AREA. CURRENT FORECAST HAS A SLIGHT CHANCE OF AFTERNOON SHOWERS AND THUNDERSTORMS IN THE HIGHER TERRAIN EAST OF JOHN DAY AND IN THE SOUTHERN UNION AND WALLOWA COUNTIES.
TEMPS HAVE SOARED INTO THE LOW 90S FOR MANY AREAS ACROSS NORTHEAST SD AND WEST CENTRAL MN THIS AFTERNOON. COLD FRONT CONTINUES TO MAKE ITS WAY SOUTH ACROSS THE REGION AND ABR HAS FALLEN BACK TO 86 DEGREES. ALSO SEEING WDLY SCT THUNDERSTORMS DEVELOPING ALONG THE COLD FRONT ACROSS SPINK AND CLARK COUNTIES. BUT HAD TO UPDATE WIND GRIDS A FEW TIMES TO REFLECT THE HIGHER SPEEDS MOVING THROUGH. TEMPS ON SATURDAY WILL BE COOLER IN THE WAKE OF TODAYS PASSING COLD FRONT.
TONIGHT AND SATURDAY MAIN FORECAST FOCUS TO BE ON THE PASSAGE OF A COLD FRONT TONIGHT AND POTENTIAL FOR ANY THUNDERSTORMS TO DEVELOP. THE 19Z MSAS SURFACE ANALYSIS SHOWED THIS COLD FRONT STRETCHED FROM AN AREA OF LOW PRESSURE OVER CENTRAL ONTARIO SOUTHWEST THROUGH NE MN. THIS COLD FRONT IS FORECAST TO DROP SE INTO NORTHERN WI THIS EVENING AND PASS THROUGH CENTRAL/EAST-CENTRAL WI AROUND OR SHORTLY AFTER MIDNIGHT. WEATHER CONDITIONS SHOULD BE LARGELY QUIET DURING THIS PERIOD WITH A RIDGE OF HIGH PRESSURE DRIFTING EASTWARD ACROSS THE AREA. IN THE WAKE OF A COLD FRONT. TEMPERATURES SHOULD BE COOLER AND WINDS CALMER THAN TODAY.
Other than the invading cirroform clouds in advance of the approaching low pressure system nearing the 4 corners region, most of the CWA experienced full insolation this afternoon, with temperatures following the forecast curve well through the day.
800 PM EDT FRI MAY 6 2016 A RELATIVELY COOL DRY NORTHWESTERLY FLOW CONTINUES ACROSS THE REGION AS LOW PRESSURE MEANDERS ALONG THE MID-ATLANTIC COAST AND HIGH PRESSURE DRIFTS SOUTH INTO THE WESTERN GULF OF MEXICO. THIS HIGH WILL BUILD EAST ACROSS THE GULF OVER THE WEEKEND CONTINUING THE PLEASANT DRY WEATHER WITH TEMPERATURES SLOWLY MODERATING.
ROTATING AROUND LARGE MID/UPPER LOW ACROSS THE EASTERN U.
A PACIFIC STORM SYSTEM WILL BRING COOLER TEMPERATURES AND ISOLATED SHOWERS AND THUNDERSTORMS THROUGH THIS WEEKEND. EXPECT THIS ACTIVITY TO EXPAND EASTWARD TONIGHT AS THE UPPER LOW TRACKS EASTWARD. COOLER TEMPERATURES AND INCREASED MOISTURE WILL THEN MOVE INTO THE AREA OVERNIGHT TONIGHT AND INTO THE WEEKEND. THE LOW IS PROGGED TO MOVE EASTWARD ACROSS THE STATE TODAY AND AS SUCH WILL RESULT IN INCREASING RAIN CHANCES FROM THE WEST.
UPPER LOW CONTINUES TO MOVE OFF FURTHER TO OUR NORTHEAST. CHATTANOOGA AIRPORT, TN 49 82 59 85 / 0 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 48 80 58 81 / 0 10 10 10 OAK RIDGE, TN 48 80 58 81 / 0 10 10 10 TRI CITIES AIRPORT, TN 45 75 56 76 / 10 20 30 30.
THIS EVENING THROUGH SATURDAY NIGHT LATEST SURFACE ANALYSIS SHOWS A TROUGH EXTENDING FROM DULUTH TO DENVER. THE COLD FRONT IS CURRENTLY LAGGING SLIGHTLY TO THE WEST OF THE TROUGH. THIS EVENING UP TO 1500J/KG MLCAPE WILL BE AVAILABLE AS LOW LEVEL MOISTURE INCREASES AHEAD OF THE COLD FRONT. NORTHWARD UPPER FLOW WILL INCREASE TO THE EAST OF THE SOUTHWESTERN CONUS UPPER LOW TONIGHT. THE UPPER LOW WILL MOVE NORTHEASTWARD. UPPER DIVERGENCE ALONG THE NOSE OF A 120KT JET ROUNDING THE UPPER LOW WILL INCREASE SYNOPTIC SCALE LIFT OVER THE FORECAST AREA THIS EVENING. THE UPPER LOW WILL MOVE INTO SOUTH CENTRAL WY.
817 PM CDT FRI MAY 6 2016 THE COLD FRONT HAS MOVED INTO NW WI AND EXTENDS FROM GRANTSBURG NORTHEASTWARD TO NEAR ASHLAND AT 810 PM. A COLD FRONT WAS MOVING THROUGH THE TWIN PORTS AND EVENTUALLY THROUGH NW WI THIS EVENING.
733 PM EDT FRI MAY 6 2016 A SLOW EVOLVING UPPER LOW ACROSS MUCH OF THE EASTERN THIRD OF THE COUNTRY WILL CONTINUE TO BE THE MAJOR DRIVER OF THE NORTH COUNTRY'S WEATHER THROUGH SATURDAY. THE NEXT CHANCE FOR WIDESPREAD RAIN IS WITH A STRONG COLD FRONT EXPECTED TO MOVE ACROSS THE NORTH COUNTRY SATURDAY NIGHT THROUGH MOTHERS DAY. FOR TONIGHT, I MAINTAIN LOW CHANCE POPS ACROSS OUR SOUTHERN AREAS THROUGH MIDNIGHT AS SOME LOW/MID LEVEL MOISTURE PIVOTS THROUGH THE AREA, BUT BY AND LARGE EXPECT MAINLY CLOUDY AND DRY CONDITIONS UNDER LIGHT SOUTHERLY WINDS AS THE UPPER LOW GYRES AROUND THE DC AREA. FOR SATURDAY, THE UPPER LEVEL LOW BEGINS TO SHIFT EAST OFF THE ATLANTIC COAST.
1037 PM EDT FRI MAY 6 2016 A SLOW EVOLVING UPPER LOW ACROSS MUCH OF THE EASTERN THIRD OF THE COUNTRY WILL CONTINUE TO BE THE MAJOR DRIVER OF THE NORTH COUNTRY'S WEATHER THROUGH SATURDAY. THE NEXT CHANCE FOR WIDESPREAD RAIN IS WITH A STRONG COLD FRONT EXPECTED TO MOVE ACROSS THE NORTH COUNTRY SATURDAY NIGHT THROUGH MOTHERS DAY. AND LOCALLY IN THE LOWER 50S FOR THE IMMEDIATE CHAMPLAIN VALLEY. FOR SATURDAY, THE UPPER LEVEL LOW BEGINS TO SHIFT EAST OFF THE ATLANTIC COAST.
816 PM EDT FRI MAY 6 2016 A SLOW MOVING UPPER LOW WILL FINALLY MOVE EAST OFF THE COAST SATURDAY.
HIGH PRESSURE WILL BEGIN TO SHIFT EAST OF THE STATE DURING THE EARLY MORNING HOURS ON SATURDAY.
VISIBLE SATELLITE TRENDS THROUGH 19 UTC SUGGEST SMOKE FROM CANADIAN WILDFIRES WILL INCREASE ACROSS WESTERN AND CENTRAL NORTH DAKOTA THROUGH THE AFTERNOON AND EVENING WITH A LONG FETCH OF NORTH TO NORTHWEST WINDS BEHIND THE COLD FRONT THAT PROPAGATED THROUGH THE AREA EARLIER TODAY. A QUIET AND DRY SATURDAY IS FAVORED BY THE 12 UTC GLOBAL SUITE WITH WEAK HIGH PRESSURE IN PLACE.
618 PM CDT FRI MAY 6 2016 As high pressure drifts east of the region, a cold front currently extending from northern Minnesota to South Dakota will drop slowly southward tonight. The pressure gradient ahead of the approaching front will support westerly winds of 5 to 10 mph, which will keep overnight lows several degrees warmer than in recent nights, with readings remaining in the middle to upper 50s. In response to that, a cold front extending southwest of the low will progress south through central Illinois Saturday afternoon.
/TONIGHT/ A COLD FRONT WILL APPROACH THE NORTHERN BORDER OF IOWA LATE THIS EVENING AND BE IN THE NORTHERN TIER OR TWO OF COUNTIES BY MIDNIGHT. BY 12Z THE FRONT WILL BE BISECTING THE STATE SOMEWHERE NEAR THE HIGHWAY 30 CORRIDOR. WE SHOULD SEE WIDELY SCATTERED TO ISOLATED THUNDERSTORMS ASSOCIATED WITH THE FRONT BEGINNING AROUND 9 OR 10 PM ACROSS THE FAR NORTH AND WORKING TOWARD THE HIGHWAY 20 CORRIDOR AFTER MIDNIGHT.
To our west, a deep cyclone continues to spin over the southwest CONUS. Afternoon temperatures are forecast to be slightly cooler than today, with highs generally in the mid 80s.
COLD FRONT PUSHING THROUGH SOUTHEASTERN COUNTIES THIS AFTERNOON SHOULD CLEAR THE REST OF THE CWA BY MIDNIGHT. HIGH PRESSURE BEHIND THE FRONT WILL ALLOW FOR LIGHTER WINDS IN THE WESTERN COUNTIES. COOLER UNDER THE HIGH PRESSURE.
LIGHT SOUTHEAST WINDS WILL CONTINUE THROUGH TONIGHT WITH HIGH PRESSURE ACROSS THE WESTERN GULF OF MEXICO. WINDS WILL INCREASE ON SATURDAY AS LOW PRESSURE STRENGTHENS ACROSS WEST TEXAS. MID LEVEL RIDGE ACROSS THE CENTRAL CONUS IS SANDWICHED BETWEEN TWO UPPER LOWS. THE RIDGE DOES SHIFT EAST BEGINNING SATURDAY AS THE EASTERN LOW BEGINS TO BECOME AFFECTED AND KICKED EASTWARD BY A TROUGH MOVING ACROSS CANADA. THUNDERSTORMS ON THE HIGHER TERRAIN OF THE SIERRA MADRES ARE EXPECTED TO DEVELOP LATE SATURDAY WITH CONVECTIVE DEBRIS CLOUDS STREAMING ACROSS THE AREA SATURDAY NIGHT.
ERVIN A COLD FRONT EXTENDED FROM NORTHERN MN TO NORTHERN CO AND WAS PUSHING SOUTHEAST. FORECAST FOCUS ON COLD FRONT PUSHING ACROSS THE AREA WITH SCATTERED SHOWERS AND A FEW THUNDERSTORMS. A MILD NIGHT AHEAD OF A COLD FRONT THAT WILL BE APPROACHING FROM THE NORTHWEST. COOLER AS THE FRONT CONTINUES TO SETTLE SOUTHWARD ACROSS THE CWA ACCOMPANIED BY SCATTERED SHOWERS AND A FEW THUNDERSTORMS.
736 PM EDT FRI MAY 6 2016 A SLOW MOVING UPPER LOW WILL FINALLY MOVE EAST OFF THE COAST SATURDAY.
THE LOW WILL MOVE SLOWLY NORTHEAST AND WILL BE OVER UTAH BY NOON SATURDAY. FLOW ALOFT WILL BECOME NORTHEASTERLY OVER THE MEDFORD CWA BETWEEN THE CUTOFF AND A RIDGE WHICH WILL BUILD IN FROM THE NORTHWEST.
HIGH PRESSURE CURRENTLY IS OVER NORTHWEST LOUISIANA. THE HIGH WILL MOVE SLOWLY SOUTHEAST DURING TH WEEKEND.
/ISSUED 906 PM CDT FRI MAY 6 2016/ HIGH PRESSURE REMAINS SETTLED OVER THE MIDSOUTH TONIGHT. HIGH PRESSURE CURRENTLY IS OVER NORTHWEST LOUISIANA. THE HIGH WILL MOVE SLOWLY SOUTHEAST DURING TH WEEKEND.
750 PM EDT FRI MAY 6 2016 A SLOW EVOLVING UPPER LOW ACROSS MUCH OF THE EASTERN THIRD OF THE COUNTRY WILL CONTINUE TO BE THE MAJOR DRIVER OF THE NORTH COUNTRY'S WEATHER THROUGH SATURDAY. THE NEXT CHANCE FOR WIDESPREAD RAIN IS WITH A STRONG COLD FRONT EXPECTED TO MOVE ACROSS THE NORTH COUNTRY SATURDAY NIGHT THROUGH MOTHERS DAY. FOR SATURDAY, THE UPPER LEVEL LOW BEGINS TO SHIFT EAST OFF THE ATLANTIC COAST.
940 PM EDT FRI MAY 6 2016 AN UPPER LEVEL LOW CENTERED OVER THE MID-ATLANTIC WILL GRADUALLY SHIFT OFFSHORE TONIGHT AND SATURDAY. LOW PRESSURE MOVING SLOWLY TO THE NORTH AND EAST OVERNIGHT WILL ALLOW FOR BREAKS IN PRECIP AND CLOUD COVER. SOME CLEARING OVERNIGHT WILL ALLOW FOR TEMPERATURES TO DROP INTO THE LOW 50S AND UPPER 40S ACROSS MUCH OF THE AREA WITH WARMER TEMPERATURES LIKELY WHERE CLOUDS ARE GREATER IN COVERAGE. -PWB/JLB THE UPPER LEVEL LOW WILL FINALLY SHIFT OFFSHORE THE MID-ATLANTIC/ CAROLINA COAST IN THIS PERIOD. SUPPLANTED BY A MUCH WARMER NORTHWEST (SAT) TO WESTERLY (SAT NIGHT) FLOW ALOFT. AND LOWS SAT NIGHT WILL BOTTOM OUT IN THE LOWER 60S.
816 PM EDT FRI MAY 6 2016 HIGH PRESSURE WILL MOVE OFF TO THE SOUTHEAST TONIGHT. A COLD FRONT WILL MOVE ACROSS THE REGION SATURDAY AFTERNOON AND EVENING AND THEN STALL ACROSS KENTUCKY.
1139 PM CDT FRI MAY 6 2016 Deep ridge within an omega pattern will begin to break down tonight, allowing a cold front to drop in from the north overnight. However, ridging will leave a moisture- starved airmass ahead of the front and make it difficult to get much more than an isolated shower or two.
VFR THROUGH THE NEXT 24 HOURS UNDER HIGH PRESSURE. A WEAK LOW PRESSURE SYSTEM WILL MOVE ACROSS THE GREAT LAKES AND OHIO VALLEY.
1155 PM CDT FRI MAY 6 2016 A high pressure ridge axis remains over the area this evening providing clear skies while a cold front currently draped from Lake Superior to western Nebraska approaches. Lows tonight will be considerably warmer than last night as the air mass has warmed up significantly and winds will enhance mixing. As high pressure drifts east of the region, a cold front currently extending from northern Minnesota to South Dakota will drop slowly southward tonight. The pressure gradient ahead of the approaching front will support westerly winds of 5 to 10 mph, which will keep overnight lows several degrees warmer than in recent nights, with readings remaining in the middle to upper 50s. In response to that, a cold front extending southwest of the low will progress south through central Illinois Saturday afternoon.
900 PM PDT FRI MAY 6 2016 A SLOW MOVING LOW PRESSURE SYSTEM WILL CONTINUE THE COOL AND RATHER UNSETTLED WEATHER PATTERN THIS WEEKEND. THE MARINE LAYER AND WEAK ONSHORE FLOW WILL KEEP COASTAL AREAS COOLER WITH AREAS OF NIGHT AND MORNING LOW CLOUDS AND FOG. THE UPPER LOW WILL GRADUALLY ACCELERATE INTO ARIZONA. AND OUR AREA WILL BECOME ON THE FAVORABLE BACKSIDE OF THE UPPER LOW TO GENERATE WRAPAROUND SHOWERS.
810 PM EDT FRI MAY 6 2016 AVIATION A COLD FRONT NEAR LAKE SUPERIOR WILL MOVE ACROSS LOWER MICHIGAN LATE TONIGHT AND SATURDAY MORNING.
1202 AM EDT SAT MAY 7 2016 AVIATION A COLD FRONT NEAR LAKE SUPERIOR WILL MOVE ACROSS LOWER MICHIGAN LATE TONIGHT AND SATURDAY MORNING.
VERY DRY AIR IS ROUNDING THE BASE OF THE TROUGH. INDICATING THIS IS A DEEP TROUGH. AHEAD OF THE TROUGH WAS A LARGE EXPANSE OF CLOUD COVER OVER THE GREAT BASIN. TO THE EAST OF THE TROUGH AN OMEGA RIDGE WAS OVER THE PLAINS WITH ANOTHER CLOSED CUTOFF LOW OVER THE EAST COAST.
/ISSUED 954 PM CDT FRI MAY 6 2016/ BROAD HIGH PRESSURE AT SURFACE COVERS THE GULF COAST STATES INCLUDING THE GULF THIS EVENING AS RIDGE ALOFT HOLDS CLOUD DEVELOPMENT IN CHECK. HIGH PRES RIDGE EXTENDS FM SRN ARK ACRS LA INTO THE NW GULF. LT VRBL WINDS TONIGHT WILL BECOME MORE SELY SATURDAY AS THE RIDGE BECOMES CNTRD EAST OF THE AREA. WITH UPPER LEVEL LOWS OVER THE MID ATLANTIC AND MOUNTAIN WEST. WITH AN UPPER LEVEL RIDGE BETWEEN THE TWO.
LOWS IN THE LOWER TO MID 50S LOOKED GOOD ACROSS THE AREA. THE HI RES SUGGESTED THERE WOULD BE SOME PATCHY FOG ALONG THE HIGHWAY 84 CORRIDOR. TWEAKED THE HOURLY VALUES TO ACCOUNT FOR THE SLIGHTLY WARMER VALUES IN THE WEST AND SLIGHTLY COOLER VALUES IN THE EAST.
A PRONOUNCED OMEGA BLOCKING PATTERN IS FIRMLY IN PLACE ACROSS THE CONUS WITH DUAL CUTOFF LOW PRESSURE AREAS CENTERED OVER SOUTHERN CALIFORNIA AND COASTAL NORTH CAROLINA. LONG WAVE RIDGING IS IN PLACE OVER THE GREAT PLAINS WHICH IS LEADING TO DRY NORTHERLY FLOW ACROSS THE LOCAL FORECAST AREA.
906 PM CDT FRI MAY 6 2016 HIGH PRESSURE REMAINS SETTLED OVER THE MIDSOUTH TONIGHT. HIGH PRESSURE CURRENTLY IS OVER NORTHWEST LOUISIANA. THE HIGH WILL MOVE SLOWLY SOUTHEAST DURING TH WEEKEND.
/ISSUED 938 PM CDT FRI MAY 6 2016/ CLOUDS AND WINDS HAVE FINALLY SUBSIDED ACROSS THE TENNESSEE VALLEY THIS EVENING AS A WEAKENING STACKED LOW PRESSURE SYSTEM MOVES OVER BALTIMORE MD, AND RIDGING BUILDS IN ITS WAKE. WINDS AT ALL SITES ACROSS THE AREA HAVE DECOUPLED, ALLOWING TEMPERATURES TO PLUMMET WITH NIGHTFALL; MOST RURAL LOCATIONS HAVE ALREADY REACHED THE LOWER 50S (TULLAHOMA IS 50 DEGREES AS OF 02Z/9 PM) WHILE THE MORE URBANIZED SITES ARE STILL HOVERING AROUND 60. BCC FOR 06Z TAFS: VFR CONDITIONS WILL CONTINUE THROUGH 08/06Z AS HIGH PRESSURE PERSISTS.
A COLD FRONT WILL SWEEP ACROSS THE AREA SATURDAY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS ON SATURDAY.
1009 PM EDT FRI MAY 6 2016 A SLOW MOVING UPPER LOW WILL FINALLY MOVE EAST OFF THE COAST SATURDAY.
A BROAD UPPER LEVEL LOW WAS MOVING INLAND ACROSS SOUTHERN CALIFORNIA ON FRIDAY EVENING. BANDS OF MOISTURE ROTATING AROUND THE LOW WILL MAINTAIN SHOWER CHANCES OVER OUR DISTRICT THROUGH SATURDAY EVENING.
VFR THROUGH THE NEXT 24 HOURS UNDER HIGH PRESSURE. A WEAK LOW PRESSURE SYSTEM WILL DROP A FRONT INTO THE OHIO VALLEY.
A COLD FRONT WILL MOVE SOUTH ACROSS THE WESTERN GREAT LAKES TONIGHT REACHING NORTHERN IL JUST AFTER SUNRISE AND THEN CONTINUING INTO CENTRAL IL BY EARLY/MID AFTERNOON.
A BROAD UPPER LEVEL LOW NOW CENTERED JUST OFF OF THE SOUTHERN CALIFORNIA COAST WILL SHIFT SLOWLY EASTWARD AND INLAND TODAY.
1008 PM EDT FRI MAY 6 2016 MARINE A COLD FRONT NEAR LAKE SUPERIOR WILL MOVE ACROSS LOWER MICHIGAN LATE TONIGHT AND SATURDAY MORNING.
840 PM CDT FRI MAY 6 2016 A high pressure ridge axis remains over the area this evening providing clear skies while a cold front currently draped from Lake Superior to western Nebraska approaches. Lows tonight will be considerably warmer than last night as the air mass has warmed up significantly and winds will enhance mixing. As high pressure drifts east of the region, a cold front currently extending from northern Minnesota to South Dakota will drop slowly southward tonight. The pressure gradient ahead of the approaching front will support westerly winds of 5 to 10 mph, which will keep overnight lows several degrees warmer than in recent nights, with readings remaining in the middle to upper 50s. In response to that, a cold front extending southwest of the low will progress south through central Illinois Saturday afternoon.
636 PM CDT FRI MAY 6 2016 FOR 00Z TAFS /ISSUED 404 PM CDT FRI MAY 6 2016/ ANOTHER BEAUTIFUL DAY ACROSS THE TN VALLEY WITH CURRENT TEMPS IN THE LOWER 70S. HOWEVER THE RIDGE WILL BEGIN TO BUILD INTO THE SOUTHEAST TONIGHT. A GREAT WEEKEND AND MOTHERS DAY IS IN STORE AS THE RIDGE CONTINUES TO BUILD INTO THE REGION THIS WEEKEND. TEMPS WILL WARM UP INTO THE LOWER 80S AND DRY CONDITIONS WILL PREVAIL.
HIGH PRES RIDGE EXTENDS FM SRN ARK ACRS LA INTO THE NW GULF. LT VRBL WINDS TONIGHT WILL BECOME MORE SELY SATURDAY AS THE RIDGE BECOMES CNTRD EAST OF THE AREA. WITH UPPER LEVEL LOWS OVER THE MID ATLANTIC AND MOUNTAIN WEST. WITH AN UPPER LEVEL RIDGE BETWEEN THE TWO.
A QUIET AND DRY WEATHER PATTERN WILL CONTINUE THROUGH THE WEEKEND UNDER HIGH PRESSURE INFLUENCE THAT REMAINS ANCHORED OVER THE DEEP SOUTH.
1050 AM EDT SUN JUN 26 2016 High pressure remains in control through Monday.
957 AM EDT SUN JUN 26 2016 High pressure will remain centered along the mid Atlantic coast today and tonight, and will slide off the coast on Monday.
/issued 504 AM CDT SUN JUN 26 2016/ Upper ridging will remain ovhd today expect will begin to gradually weaken with deep moisture on the increase. As the ridge begins to slowly shift wwd early this week, nw flow pattern to set up with convection to increase across mainly se OK and sw AR where upper flow is stronger, while more isold and diurnal convection expected to approach southern portions of the area durg the aftn in the form of a sea breeze.
TSRA complex has dissipated and low pressure system responsible for it has shifted north of KDRT producing SHRA well north of the terminal. The latest water vapor satellite imagery shows an upper low centered over west Texas early this morning. Convection to the east of the low continues. The upper low should move little today, with perhaps a slight northward drift. The upper low will weaken while moving farther west on Monday.
624 AM CDT SUN JUN 26 2016 At H5 main player is closed low centered over Winnipeg early this morning. Mainly zonal pattern over the western CONUS with weak ridging over the eastern CONUS ahead of the upper low over southcentral Canada. 850mb temperatures rise into the low 20s Celsius today over western Nebraska. Synoptic scale picture transitioning to a mean trough over eastern Canada and northeastern U. thanks in part to a blocking upper ridge over Sweeden and Finland region allowing low pressure to deepen over the northern Great Lakes through the week.
1006 AM EDT SUN JUN 26 2016 A back door cold front located over the southeastern United States will continue to move southwest into Central Florida this afternoon and dissipate. /issued 348 AM EDT SUN JUN 26 2016/ Broad upper level ridge remains in control of the weather pattern in South Florida for most of the forecast period. High temps will range between the low to mid 90s today with heat index values of 101 to 105 over Collier county.
Templer Previous Discussion: Synoptic Setup: A large area of hot high pressure sets over the Desert Southwest and lower Intermountain West. A weak ridge rides north out of this airmass through Idaho and Alberta. Mostly zonal flow runs from the Pacific Northwest through the High plains of Montana. A weak remnant trough sets over southern Saskatchewan. Farther west a large synoptic trough sets over the Gulf of Alaska. Today: The remnant trough to the north will drop into the Dakotas and generate enough instability as it clips northeast montana to bring about some showers and thunderstorms during the afternoon and evening hours.
The upper low currently over eastern Manitoba will move into Ontario today, leaving west to northwest flow aloft over the Northern Plains. Will keep winds on the higher end, but below advisory criteria with speeds around 25 kt sustained and gusts around 30 to 35 kts. As the upper low rotates, there should be some decent mid level moisture coming around the backside of the system. With the clouds and precip highs in the north will be close to the 70 mark, but the sunny south should see highs in the low 80s. Tonight, a few showers could linger in the northeast as the system pulls slowly away, but otherwise it should be drying out and winds diminishing as high pressure builds into the area. Lows should drop down into the low to mid 50s.
Upper level high starts over the Mid-South this Sunday and will slowly retrograde to the west today and into tonight. Unfortunately, the polar just means it is cooler than the maritime-tropical air mass it is replacing from the past few days.
1003 AM EDT SUN JUN 26 2016 High pressure will extend from the Northeast coast southwest through the Mid-Atlantic for the remainder of the weekend.
Upper low is still spinning over the Big Bend region of Texas this morning, and will gradually weaken through the period. Still, proximity of upper low may be enough to swing the balance to isolated showers/storms later on this afternoon. Should be warmer today than yesterday with less convection around. Weak to moderate onshore flow will continue through this evening, then diminish overnight as high pressure over the northeast gulf moves into the northwest gulf and weaken the pressure gradient.