Aikyam-Lab/Synoptic-Bench huggingface dataset:
WATER VAPOR IMAGERY SHOW AN UPPER LOW SLIDING DOWN THE WEST SIDE OF THE CASCADES TONIGHT ABOUT AS PREDICTED BY MODELS.
THIS RAIN IS BEING PRODUCED BY 900 TO 800 MB FRONTOGENESIS AND A SURFACE WARM FRONT IN NORTHERN IOWA. 12Z MODELS CONTINUE TO SHOW THAT THE WARM FRONT WILL MOVE SLOWLY NORTH TO THE INTERSTATE 90 CORRIDOR TONIGHT AND INTO CENTRAL MINNESOTA AND NORTHERN WISCONSIN ON WEDNESDAY. THIS FRONTOGENESIS AND WARM FRONT WILL CONTINUE TO BE FOCUS OF RAIN.
COURTESY OF AN UPPER LEVEL HEIGHT RIDGE OVER THE SOUTHEAST STATES.
IR SATELLITE IMAGERY CONTINUES TO SHOW THE DEVELOPMENT OF AN UPPER LEVEL LOW OVER THE FLORIDA PENINSULA THAT WILL GRADUALLY DEVELOP A SURFACE REFLECTION DURING THE DAY ON WEDNESDAY. LATEST TRENDS CONTINUE TO INDICATE THAT WE WON'T SEE ANY IMPACTS FROM THE LOW. WITH UPPER LEVEL RIDGING PREVENTING ANY WESTWARD MOVEMENT OF THE SYSTEM. UPPER LEVEL RIDGING WILL REMAIN THE DOMINANT PLAYER IN THE FORECAST.
THINK THIS WILL CONTINUE TONIGHT WITH THE HIGHEST RAIN CHANCES AND RAINFALL TOTALS MAINLY NEAR I-35. SHOWER AND THUNDERSTORM CHANCES WILL CONTINUE THROUGH THIS WEEKEND AHEAD OF AN APPROACHING CLOSED LOW.
1034 PM EDT TUE MAY 5 2015 CURRENTLY - A PRONOUNCED UPPER LEVEL TROUGH IN THE SOUTHERN STREAM IS ALIGNED OVER THE EASTERN GULF OF MEXICO AND WESTERN CARIBBEAN. THE PROXIMITY OF THE MID AND UPPER LEVEL TROUGH HAS INCREASED DEEP LAYERED MOISTURE. AS THE TROUGHING CENTERED NEAR OR NORTH OF THE BAHAMAS CONTINUES STRENGTHENING. THE MID AND UPPER TROUGH AXIS WILL SWING FURTHER EASTWARD. AMPLE DEEP LAYERED MOISTURE AND TROUGHING ALOFT.
/ISSUED 342 PM EDT TUE MAY 5 2015/ UPPER LEVEL RIDGE WILL CONTINUE TO DOMINATE THE FORECAST AREA IN THE SHORT TERM. EVEN WITH THE DEVELOPMENT AND LOCATION OF AN AREA OF LOW PRESSURE DEVELOPING JUST OFF THE EAST COAST OF FL ON WEDNESDAY. WITH THE LOCATION OF THE RIDGE OVER THE REGION. INSTABILITIES DO INCREASE TODAY AND WEDNESDAY ACROSS THAT AREA BUT NOTHING MAJOR WITH HIGH PRESSURE KEEP THINGS SUBDUED. 01 INITIAL CONCERN IS THE EXPECTED DEVELOPMENT OF AN AREA OF LOW PRESSURE SYSTEM OFF THE EAST COAST OF FLORIDA ON WEDNESDAY.
WE WILL ALSO SEE HEIGHT FALLS IN RESPONSE TO THE UPPER LEVEL TROF MOVING INTO THE PACIFIC NORTHWEST.
629 PM CDT TUE MAY 5 2015 A WARM FRONT REMAINS DRAPED ACROSS EASTERN NEBRASKA AND WESTERN IOWA THIS AFTERNOON WITH A FEW ISOLATED SHOWERS AROUND THE BOUNDARY ACROSS NORTHEAST NEBRASKA. A MID LEVEL NEGATIVELY TILTED TROUGH AXIS EXTENDS ACROSS THE FOUR CORNERS AREA INTO NORTHEASTERN NEW MEXICO. THIS WAVE WILL CONTINUE TO MOVE NORTHEAST OVERNIGHT BRINGING INCREASING SHOWERS AND THUNDERSTORMS TO THE HIGH PLAINS.
FOG WILL BE MUCH OF LOCALIZED THE NEXT FEW HOURS AS THE CENTER OF LOW PRESSURE APPROACHES THE AREA.
THE UPPER LEVEL LOW IS CURRENTLY SITUATED OVER SOUTHWEST COLORADO SO SHOWERS AND THUNDERSTORMS ARE STILL MOVING FROM SOUTHEAST TO NORTHWEST ACROSS EASTERN UT AND WESTERN CO. WED MORNING THE UPPER TROUGH WILL BE EAST OF THE AREA WITH BRIEF RIDGING. WED NGT THE RIDGE WILL PUSH NORTH AND A DRY SLOT WILL SPREAD ACROSS THE FOUR CORNERS AND SOUTHERN HALF OF THE FORECAST AREA.
736 PM EDT TUE MAY 5 2015 AVIATION A WARM FRONT IN NORTHERN INDIANA WILL LIFT NORTHWARD THROUGH MICHIGAN TONIGHT AND WEDNESDAY.
1234 AM EDT WED MAY 6 2015 HIGH PRESSURE WILL EXTEND OVER THE AREA FROM OFFSHORE THROUGH WEDNESDAY. LOW PRESSURE WILL FORM NEAR THE BAHAMAS BY WEDNESDAY THEN DRIFT NORTH AND LINGER JUST OFF THE SOUTHEAST COAST THROUGH THE WEEKEND. HIGH PRESSURE CENTERED OVER THE ATLANTIC WILL RIDGE WEST INTO THE CAROLINAS OVERNIGHT WITH LIGHT WINDS BUT RADIATIONAL COOLING WILL BE SLIGHTLY LIMITED BY DEBRIS HIGH CLOUDINESS FROM AN AREA OF DISTURBED WEATHER VICINITY OF THE BAHAMAS STREAMING NORTHWARD ACROSS EASTERN NC. RIDGE ALOFT WILL REMAIN OVER THE AREA ON WEDNESDAY. HIGH PRESSURE WILL BE PINCHED AS LOW PRESSURE DEVELOPS OFF THE FLORIDA COAST. DRY CONDITIONS WILL CONTINUE OVER EASTERN NORTH CAROLINA ALLOWING HIGH TEMPERATURES TO RISE INTO THE LOWER 80S AWAY FROM THE WATERS. POTENTIAL LOW PRESSURE SYSTEM WILL DEVELOP OVER THE SW ATLANTIC TO AFFECT THE AREA LATE WEEK.
AS THE UPPER LOW SPINS OVER EASTERN CO AND ROTATES SOME ENERGY TO THE EAST.
805 PM EDT TUE MAY 5 2015 A COLD FRONT WILL SLIDE ACROSS THE REGION TONIGHT FROM CANADA.
740 PM EDT TUE MAY 5 2015 HIGH PRESSURE OFF THE MID ATLANTIC COAST WILL CONTINUE TO BRING GENERALLY CLEAR SKIES THROUGH TONIGHT.
IR SATELLITE IMAGERY CONTINUES TO SHOW THE DEVELOPMENT OF AN UPPER LEVEL LOW OVER THE FLORIDA PENINSULA THAT WILL GRADUALLY DEVELOP A SURFACE REFLECTION DURING THE DAY ON WEDNESDAY. LATEST TRENDS CONTINUE TO INDICATE THAT WE WON'T SEE ANY IMPACTS FROM THE LOW. WITH UPPER LEVEL RIDGING PREVENTING ANY WESTWARD MOVEMENT OF THE SYSTEM. VFR CONDITIONS ARE EXPECTED FOR THE NEXT 24 HOUR AS HIGH PRESSURE REMAINS IN CONTROL.
SHOWERS AND THUNDERSTORMS WILL DECREASE OVERNIGHT AS LOW PRESSURE MOVES TO THE EAST OF THE AREA.
/ISSUED 258 PM EDT TUE MAY 5 2015/ LOW PRESSURE WILL CONTINUE TO PUSH NORTH AND AWAY FROM THE AREA THIS WEEK. SFC LOPRES TROF OVER NRN BAHAMAS HAD FLARE UP OF CONVECTION NEAR IT THIS AFTERNOON. THE LOW WILL CONTINUE TO MOVE NORTH AND AWAY FROM SOUTH FLORIDA OVER THE NEXT SEVERAL DAYS.
Winds will start to back and become more southerly overnight in response to a low pressure system which will be lifting from NM into the central plains.
A MORE PRONOUNCED TROUGH IS FORECAST TO DROP INTO NE CA BY DAYBREAK TOMORROW.
1038 PM EDT TUE MAY 5 2015 A WARM FRONT WILL MOVE NORTH OF THE REGION TONIGHT WITH RAIN CHANCES IN THE FORECAST INTO WEDNESDAY. UPPER LEVEL RIDGE WILL BUILD ACROSS REGION THROUGH THE PERIOD WITH WARM TEMPERATURES AND ONLY SPOTTY. MAINLY DIURNAL SHOWERS OR ISOLATED STORMS ESPECIALLY ALONG THE RIDGES. UPPER RIDGE REMAINS IN CONTROL THROUGH THE WEEKEND WITH WARM TEMPERATURES.
/ISSUED 343 PM CDT TUE MAY 5 2015/ AIRMASS RECOVERY CONTINUES TO MAKE PROGRESS THIS AFTERNOON AS TEMPERATURES HAVE WARMED INTO THE LOW 70S ACROSS THE WESTERN AND SOUTHERN SOUTH PLAINS. EXPECT STORMS TO CONTINUE THROUGH THIS EVENING AS THE PREVIOUSLY MENTIONED UPPER TROUGH MOVES THROUGH THE SOUTH PLAINS INTO THE TEXAS PANHANDLE. BUT COULD STILL SEE LINGERING SHOWERS/STORMS WITH ONSET OF THE LOW LEVEL JET AND PLENTY OF MOISTURE ACROSS THE ROLLING PLAINS.
630 PM CDT TUE MAY 5 2015 SUBTLE WARM FRONT CREEPING NORTHWARD ACROSS THE AREA.
1049 PM EDT TUE MAY 5 2015 FORECAST CONTINUES ON TRACK WITH HIGH PRESSURE IN CONTROL ACROSS THE REGION. /ISSUED 342 PM EDT TUE MAY 5 2015/ UPPER LEVEL RIDGE WILL CONTINUE TO DOMINATE THE FORECAST AREA IN THE SHORT TERM. EVEN WITH THE DEVELOPMENT AND LOCATION OF AN AREA OF LOW PRESSURE DEVELOPING JUST OFF THE EAST COAST OF FL ON WEDNESDAY. WITH THE LOCATION OF THE RIDGE OVER THE REGION. INSTABILITIES DO INCREASE TODAY AND WEDNESDAY ACROSS THAT AREA BUT NOTHING MAJOR WITH HIGH PRESSURE KEEP THINGS SUBDUED. 01 INITIAL CONCERN IS THE EXPECTED DEVELOPMENT OF AN AREA OF LOW PRESSURE SYSTEM OFF THE EAST COAST OF FLORIDA ON WEDNESDAY.
1002 PM EDT TUE MAY 5 2015 A WARM FRONT WILL MOVE NORTH OF THE REGION TONIGHT WITH RAIN CHANCES IN THE FORECAST INTO WEDNESDAY. UPPER LEVEL RIDGE WILL BUILD ACROSS REGION THROUGH THE PERIOD WITH WARM TEMPERATURES AND ONLY SPOTTY. MAINLY DIURNAL SHOWERS OR ISOLATED STORMS ESPECIALLY ALONG THE RIDGES. UPPER RIDGE REMAINS IN CONTROL THROUGH THE WEEKEND WITH WARM TEMPERATURES.
EXTENSIVE CLOUD COVER OVER SOUTH TEXAS THIS AFTERNOON AS HIGH MOISTURE IN THE LOWER LEVELS TRAPPED BENEATH A STRONG MID LEVEL INVERSION.
644 PM CDT TUE MAY 5 2015 SLOWED DOWN THE HIGHER POPS UNTIL MORE AFTER 12Z. SHOULD BE A LITTLE WARMER ACROSS THE SOUTH FOR THESE REASONS. AFTER THE PCPN ENDS THU NIGHT IT LOOKS NOTICEABLY COOLER FOR FRI.
625 PM CDT TUE MAY 5 2015 FOR 00Z TAFS /ISSUED 214 PM CDT TUE MAY 5 2015/ THE 19Z SURFACE ANALYSIS INDICATED THAT A LARGE AREA OF HIGH PRESSURE WAS RIDGING SOUTHWEST DOWN THE APPALACHIANS INTO THE TENNESSEE VALLEY REGION.
CLOUDS WILL SLOWLY INCREASE FROM SOUTH TO NORTH TONIGHT AS SOUTHERLY FLOW ON THE BACK SIDE OF DEPARTING RIDGE AXIS CONTINUES TO SLOWLY INTENSIFY. WEDNESDAY SHOULD BE A CLOUDY AND SOMEWHAT COOLER DAY IN MOST LOCATIONS.
906 PM EDT TUE MAY 5 2015 HIGH PRESSURE WILL EXTEND OVER THE AREA FROM OFFSHORE THROUGH WEDNESDAY. LOW PRESSURE WILL FORM NEAR THE BAHAMAS BY WEDNESDAY THEN DRIFT NORTH AND LINGER JUST OFF THE SOUTHEAST COAST THROUGH THE WEEKEND. HIGH PRESSURE CENTERED OVER THE ATLANTIC WILL RIDGE WEST INTO THE CAROLINAS OVERNIGHT WITH LIGHT WINDS BUT RADIATIONAL COOLING WILL BE SLIGHTLY LIMITED BY DEBRIS HIGH CLOUDINESS FROM AN AREA OF DISTURBED WEATHER VICINITY OF THE BAHAMAS STREAMING NORTHWARD ACROSS EASTERN NC. RIDGE ALOFT WILL REMAIN OVER THE AREA ON WEDNESDAY. HIGH PRESSURE WILL BE PINCHED AS LOW PRESSURE DEVELOPS OFF THE FLORIDA COAST. DRY CONDITIONS WILL CONTINUE OVER EASTERN NORTH CAROLINA ALLOWING HIGH TEMPERATURES TO RISE INTO THE LOWER 80S AWAY FROM THE WATERS. POTENTIAL LOW PRESSURE SYSTEM WILL DEVELOP OVER THE SW ATLANTIC TO AFFECT THE AREA LATE WEEK.
SURFACE COLD FRONT THAT BROUGHT WIDESPREAD LIGHT TO OCCASIONALY MODERATE RAIN AND ISOLATED THUNDERSTORMS THIS AFTN/EVE IS CURRENTLY LOCATED FROM NEAR HAVRE TO A LITTLE EAST OF WHITE SULPHUR SPRINGS. DRIER AND COOLER CONDITIONS STILL LOOKING GOOD FOR TOMORROW.
RIDGE EXTENDS FROM NORTHERN MO INTO SE TX WITH LEE TROUGHING STRENGTHENING OVER THE HIGH PLAINS. SOUNDINGS INDICATE THERE WILL BE PLENTY OF CLOUD ICE WITH THE THERMAL PROFILE IN THE LOWEST COUPLE THOUSAND FEET DICTATING THE PRECIP TYPE. ECMWF AND GFS AGREE ON DIGGING A PRONOUNCED TROUGH OVER THE CENTRAL GREAT BASIN MON AND VERY SLOWLY MIGRATING IT EAST FOR TUE. STORMS SHOULD DEVELOP ALONG A COLD FRONT AS IT SURGES SOUTHEAST WED AFTERNOON-WED EVENING. THE HIGHEST SPEEDS WILL BE WEST OF I-135 WHERE SUSTAINED SPEEDS IN THE 20-25 MPH RANGE WILL BE COMMON WITH GUSTS IN THE 30-35 MPH RANGE. COLD FRONT WILL PUSH THROUGH DURING THE DAY SAT. FLIPPING WINDS AROUND TO THE NORTHWEST AND USHERING-IN SOME COOLER AIR.
WITH GUIDANCE SLOWING DOWN EASTWARD PROGRESSION OF PRECIP TONIGHT AND FRIDAY MORNING DECIDED TO REMOVE ANY MENTION OF FREEZING RAIN. KEEPING LOWS JUST ABOVE FREEZING. SOUTHERLY WINDS OF 15 TO 20 MPH AHEAD OF THE LOW WILL AID IN MIXING. BEHIND THE LOW CAA WILL MIX DOWN NORTHERLY WINDS OF 20 TO 35 KTS. THE PERIOD BEGINS WITH UPPER LEVEL RIDGING BUILDING INTO THE REGION WITH DRY AND WARMER TEMPERATURES EXPECTED. WHILE THE RIDGE BUILDS INTO THIS REGION. A TROUGH WILL DEVELOP ALONG WITH WEST COAST.
WITH THE 500 MB TROUGH HOLDING BACK OVER MICHIGAN. TODAY AND TONIGHT WILL BE THE CALM AFTER THE STORM AS HIGH PRESSURE AND DRY AIR THRU THE COLUMN BUILD INTO MICHIGAN. HIGH PRESSURE. HIGH PRESSURE WILL SLIDE OFF TO THE EAST SATURDAY YIELDING A MILDER SOUTHERLY FLOW.
FLIGHT CATEGORIES REMAIN VFR THROUGH FRIDAY AS HIGH PRESSURE OVER THE REGION SLOWLY DRIFTS EAST. VFR CONDITIONS WILL PREVAIL ACROSS DEEP SOUTH TEXAS THROUGH THE NEXT 24 HOURS AS HIGH PRESSURE BUILDS INTO THE REGION. SMALL CRAFT ADVISORIES ARE NO LONGER IN EFFECT FOR THE LAGUNA MADRE OR THE LOWER TEXAS GULF WATERS. COLD FRONT SURGED SOUTHWARD THROUGH THE RIO GRANDE VALLEY AS EXPECTED THIS MORNING. WITH SURFACE DEWPOINTS OVERNIGHT RANGING FROM THE LOW-MID 40S OUT WEST TO LOW 50S NEAR THE COAST. SO IT LOOKS LIKE LOW TEMPS IN THE LOW-MID 50S WILL BE THE RULE ACROSS THE RGV AND RANCHLANDS. SURFACE WINDS VEER BACK TO SE IN RESPONSE TO TROUGHING IN THE LEE OF THE ROCKIES. DEWPOINTS RISE BACK TO THE LOW 60S.
341 AM CDT FRI MAR 25 2016 HIGH PRESSURE IN PLACE ACROSS THE STATE CURRENTLY. WITH THE LARGE AREA OF HIGH PRESSURE TO SHIFT EAST THROUGH THE DAY. SOUTHERLY TO PICK UP AHEAD OF AN APPROACHING LOW PRESSURE SYSTEM SITUATED ACROSS THE DAKOTAS. H85 TEMPS WARM TO THE SINGLE DIGITS ABOVE FREEZING. NORTHERN CWA WITH SNOW COVER WILL REMAIN COOLER LIKELY ONLY TOPPING OUT IN THE UPPER 30S TO AROUND 40. 00 RUNS OF THE NAM/EC/GFS HAVE ALL SLOWED THE PROGRESSION OF THE SYSTEM AND ATTENDANT COLD FRONT THROUGH THE REGION ON SATURDAY.
354 AM EDT FRI MAR 25 2016 A SURFACE COLD FRONT IS ALIGNED FROM THE EASTERN OHIO VALLEY DOWN THROUGH THE GULF STATES. MUCH COOLER AIR IS ADVECTING IN ACROSS THE COMMONWEALTH. TEMPERATURES WILL LIKELY CONTINUE TO DROP DOWN INTO THE LOW TO MID 40S THROUGH THE MID-MORNING HOURS. SKIES WILL CLEAR OUT TONIGHT AS HIGH PRESSURE STRENGTHENS TO OUR NORTHEAST. WITH LOWS IN THE SHELTERED VALLEYS DOWN IN THE LOW 30S. WITH BROADER VALLEYS AND RIDGETOPS COOLING OFF TO THE 35 TO 40 DEGREE RANGE. CLEAR SKIES AND LIGHT WINDS SHOULD YIELD ANOTHER DECENT RIDGE/VALLEY SPLIT FOR SATURDAY NIGHT WITH VALLEYS FALLING TO AROUND 40.
At 06Z, the cold front was analyzed to stretch along the western edge of the Appalachian mountain range, diagonally across Alabama and across the southeastern tips of Mississippi and Louisiana.
654 AM EDT FRI MAR 25 2016 A COLD FRONT WITH RAIN SHOWERS WILL MOVE THROUGH THE REGION THIS MORNING. THE WEEKEND WILL BE DRY AND MILD WITH HIGH PRESSURE.
/ISSUED 246 AM CDT FRI MAR 25 2016/ 06Z SFC ANALYSIS SHOWS THAT THE COLD FRONT HAS NOW JUST PASSED SE OF THE I-59 CORRIDOR. OTHERWISE SHOULD BE A SPLENDID DAY WITH MUCH WARMER TEMPS REACHING THE L-M70S. WILL INTRODUCE A SLIGHT CHC OF -SHRA BY LATE SATURDAY NIGHT AS THE WARM FRONT APPROACHES.
1202 AM CDT FRI MAR 25 2016 DRIER AIR ASSOCIATED WITH COLD FRONT SHOULD GRADUALLY MOVE SOUTHEAST THROUGH COASTAL AREAS AND CLEAR OUT THE LOWER LEVEL CLOUDS AND ANY RESTRICTED VSBYS OVER THE NEXT 1 TO 3 HOURS. /ISSUED 753 PM CDT THU MAR 24 2016/ UPDATED THE FIRST PERIOD OF THE FORECAST TO KEEP A SLIGHT CHANCE OF SHOWERS ALONG AND AHEAD OF THE COLD FRONT OVER PORTIONS OF THE NORTHSHORE OF LAKE PONTCHARTRAIN AND SOME COASTAL AREAS. A FEW OF THESE COULD BECOME STRONG WITH GUSTY WINDS AND FREQUENT LIGHTNING UNTIL THE COLD FRONT PUSHES THROUGH LATER THIS EVENING TO SHORTLY AFTER MIDNIGHT. /ISSUED 412 PM CDT THU MAR 24 2016/ GRAVITY WAVE INDUCED SQUALL LINE IN ADVANCE OF THE COLD FRONT HAS BROUGHT SOME DRAMA TO THE AREA THIS AFTERNOON.
546 AM EDT FRI MAR 25 2016 HIGH PRESSURE BUILDING INTO THE REGION TODAY WILL BRING A COOLER AIRMASS. WARMER TEMPERATURES WILL RETURN FOR THE WEEKEND AS A SOUTHERLY FLOW DEVELOPS. HIGH PRESSURE WILL BUILD IN FROM THE WEST TODAY. WE WILL START TO GET INTO SOME RETURN FLOW THROUGH THE DAY ON SATURDAY AS THE HIGH PUSHES OFF TO THE EAST.
A COLD FRONT WAS CROSSING CENTRAL ALABAMA AND WAS VERY CLOSE TO INTERSTATE 59. DOES THE CLEARING IN THE WEST PROGRESS EASTWARD (WITH THE ADVANCING COLD FRONT NOW MOVING THROUGH).
FAIR WEATHER AND WARMER TEMPERATURES CAN BE EXPECTED TODAY BEFORE A SLIGHT COOLDOWN AND BREEZY NORTH WINDS ARRIVE ON SATURDAY.
423 AM EDT FRI MAR 25 2016 LATEST SURFACE ANALYSIS SHOWS COLD FRONT JUST NOW ENTERING NW PORTIONS OF THE STATE AND THEN IT MEANDERS DOWN THROUGH PORTIONS OF EASTERN ALABAMA WITH A CONTINUED AREA OF LIGHT SHRA MARKING ITS LEADING EDGE. AFOREMENTIONED BOUNDARY BEGINS TO LIFT NORTHWARD ACROSS THE CWA SATURDAY NIGHT AS A WARM FRONT WITH A SURGE OF MOISTURE BEHIND IT.
Lots of sunshine will help produce afternoon highs warmer than yesterday, mainly in the mid to upper 70s.
348 AM CDT FRI MAR 25 2016 STRONG COLD FRONT HAS MOVED SOUTH INTO NORTHEAST NORTH DAKOTA THIS MORNING. HAVE SEEN RAIN CHANGE TO FREEZING RAIN BEFORE CHANGING TO SNOW ACROSS SOME PARTS OF THIS AREA. WILL MONITOR MODEL TRENDS/CURRENT CONDITIONS AS COLD FRONT PUSHES SOUTH AND ADJUST HIGHS AND SNOW CHANCES ACCORDINGLY.
TODAY SHOULD WARM NICELY INTO THE LOW 70S ALONG THE COAST. TEMPERATURES TONIGHT WILL RANGE FROM THE LOW 60S ALONG THE COAST AND RIO GRANDE. TO THE LOW TO MID 50S INLAND.
SAW A QUICK DROP IN TEMPS AS THE SOUTHERN LINE OF SHOWERS AND STORMS MOVED THROUGH THE AREA OVER THE PAST FEW HOURS SO TEMPERATURES ARE CURRENTLY IN THE LOW TO MID 60S ACROSS MANY SPOTS. FORECAST FOR FRIDAY IS A BIT TRICKY AS THE COLD FRONT OVER THE PANHANDLE WILL REMAIN MAINLY STATIONARY LEAVING WEST-CENTRAL AND SW FLORIDA IN THE WARM SECTOR THROUGHOUT THE DAY TODAY. DAMAGING WINDS WOULD BE POSSIBLE ALONG WITH HAIL AS COOLER MID-LEVEL TEMPS IN THE -10C TO -12C RANGE ARE PRESENT. THIS COOLER MID-LEVEL AIR HELPED SUPPORT SOME GOLF BALL SIZE HAIL YESTERDAY IN OKEECHOBEE COUNTY SO THE POTENTIAL IS CERTAINLY THERE. MID-LEVEL TROUGH OVER THE CENTRAL STATES SATURDAY NIGHT WILL BE MOVING ACROSS THE EASTERN U.
THIS ACTIVITY WILL CONTINUE THROUGH THE MORNING AS THE TROUGH SLIDES THROUGH DRIVING THE COLD FRONT ASSOCIATED WITH THIS SYSTEM SOUTH OF THE I-70 CORRIDOR. DURING THE LATTER PART OF THE NIGHT A SECOND TROUGH CLOSES OFF OVER NORTHEAST UTAH DROPPING TO NEAR GREEN RIVER BY 12Z/SAT. MODELS INDICATED SNOWFALL WILL INCREASE OVER THE SAN JUANS AND THE SOUTH-CENTRAL MOUNTAINS SATURDAY MORNING AS THE LOW TRACKS OVER SOUTHWEST COLORADO. THE HIGHER VALLEYS WILL ALSO SEE SNOW. ADVECTION OF COLDER AIR DURING THE DAY WILL TRANSLATE TO SOMEWHAT COOLER OVERNIGHT LOWS FOR MOST AREAS THOUGH CLOUDS WILL MITIGATE THE INFLUENCE OF COLDER AIR.
DEEPER MOISTURE REMAINS BEHIND THE COLD FRONT WHICH IS NOT EXPECTED TO MOVE INTO WESTERN MN UNTIL LATE TONIGHT. TEMPS WILL BE A FEW DEGREES COOLER WHERE DEEPER SNOW COVER REMAINS IN SC MN. WITH LOW 50S ON THE LEE OF THE BUFFALO RIDGE IN WC MN.
CHATTANOOGA AIRPORT, TN 66 42 72 52 / 0 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 63 40 71 50 / 10 0 10 10 OAK RIDGE, TN 63 38 72 51 / 0 0 10 10 TRI CITIES AIRPORT, TN 63 36 71 44 / 10 0 10 10.
THE SFC LEE TROUGH WILL DEEPEN AND PROGGED SOUNDINGS EXHIBITING ABL MIXING UP TO AOA 600 MB WILL BE TAPPING INTO 700 MB WIND SPEEDS OF 20-30 KTS. AND TO ALL BUT PERHAPS THE LOW ROLLING PLAINS BY THE END OF THE SHORT TERM PERIOD.
345 AM CDT FRI MAR 25 2016 NEAR ZONAL FLOW ALOFT THIS MORNING WILL BECOME SOUTHWEST BY THIS AFTERNOON WITH A BROAD LONGWAVE TROUGH BECOMING ESTABLISHED ACROSS INTERMOUNTAIN WEST.
HIGH PRESSURE WILL ALLOW FOR LIGHT WINDS TO BACK OUT OF THE N-NE OVERNIGHT.
MOISTURE BEGINS ITS RETURN TONIGHT AS A WARM FRONT APPROACHES FROM THE SOUTH LEADING TO A CLOUDY, MORE HUMID AND SLIGHTLY WARMER DAY. SURFACE PRESSURE BEGIN TO LOWER OVER THE SOUTHERN PLAINS AS LOW PRESSURE TROUGH MOVES INTO THE 4 CORNERS AREA. THIS WILL ALLOW YESTERDAY'S COLD FRONT TO RETURN AS A WARM FRONT AS WINDS VEER SOUTHEAST. THE FRONT APPROACHES AND MOVES NORTH OF THE LOWER VALLEY BY MIDNIGHT AND INTO THE NORTHERN RANCHLANDS SATURDAY MORNING. SOME DRIZZLE TO ACCOMPANY THE WARM FRONT BUT NOT LOOKING FOR SHOWERS WITH MOISTURE DEPTH STILL LIMITED.
358 AM EDT FRI MAR 25 2016 HIGH PRESSURE BUILDING INTO THE REGION TODAY WILL BRING A COOLER AIRMASS. WARMER TEMPERATURES WILL RETURN FOR THE WEEKEND AS A SOUTHERLY FLOW DEVELOPS. HIGH PRESSURE WILL BUILD IN FROM THE WEST TODAY. WE WILL START TO GET INTO SOME RETURN FLOW THROUGH THE DAY ON SATURDAY AS THE HIGH PUSHES OFF TO THE EAST.
346 AM CDT FRI MAR 25 2016 PLEASANT WEATHER ON TAP TODAY W/ MOSTLY SUNNY SKIES AND HIGHS IN THE LOW 70S.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW HIGH PRESSURE WILL STRENGTHEN OVER THE REGION TODAY AND TEMPS WILL TAKE A DIP AS WINDS BECOME NORTHERLY.
UNSETTLED WEATHER WILL CONTINUE TODAY AS ANOTHER COLD FRONT AND UPPER LEVEL DISTURBANCE MOVE ACROSS THE FORECAST AREA.
WHICH SHOULD INCREASE TOWARD MORNING DUE TO THE INFLUENCES OF THE UPR TROF. WHILE ANOTHER UPR TROF WORKS ITS WAY SOUTH INTO THE STATE WITH THE MAIN ENERGY BEING BACK OVR THE GREAT BASIN. MAINLY THE HIGH ELEVATIONS OF LAKE COUNTY. MAIN CONCERN IN THE EXTENDED WILL BE A LOW PRESSURE SYSTEM THAT WILL TRACK OUT OF THE PACIFIC NORTHWEST ON FRIDAY. BUT IT LOOKS LIKE A COLD FRONT WILL MOVE THROUGH THE ERN PLAINS FRI NIGHT. SLIGHT TREND OVER THE PAST COUPLE OF DAYS HAS BEEN TO SHIFT THE HIGHER SNOW POTENTIAL TO THE SRN ZONES S OF HGWY 50. ALONG WITH THE HIGHER ELEVATIONS S OF HGWY 50 ALONG I-25.
A cold front is making its way through the Northern Rockies this morning producing widespread snow showers. While snow showers will occur in the lower valleys of western Montana, accumulations are not expected on the road surfaces to impact travel. Snow showers will diminish early this evening as a ridge of high pressure noses its way into the region.
429 AM EDT FRI MAR 25 2016 LOW LEVEL MOISTURE LINGERS IN THE WAKE OF A COLD FRONT TODAY. A HIGH PRESSURE SYSTEM ARRIVES FOR THE WEEKEND. WAVE MOVING UP THROUGH THE MIDDLE OHIO VALLEY FINALLY WHIPPING COLD FRONT THROUGH THE FCST AREA EARLY THIS MORNING. WE START OFF THE WEEKEND WITH WEAK HIGH PRESSURE. THE TEMPS WILL MODERATE QUITE NICELY AS THE HIGH SLIDES EAST AND BRINGS RETURN FLOW TO THE REGION.
TIMING OF MID LEVEL TROUGH AXIS ACROSS NE OREGON AROUND NOON AND CENTRAL ID AROUND 4 PM MAXES INSTABILITY /0-3KM CAPE/ OF 500 J/KG ACROSS VALLEY COUNTY AND KEPT ISOLATED THUNDERSTORMS ACROSS THERE. COLD DOME OF HIGH PRESSURE FOLLOWS THIS SYSTEM FOR TONIGHT AND EARLY SATURDAY RESULTING IN FROST/FREEZE EVERYWHERE SATURDAY MORNING. MILDER SE-SW RETURN FLOW AHEAD OF THE NEXT PACIFIC COLD FRONT WILL BRING HIGHS BACK TO NORMAL SATURDAY.
AND AS THE HIGH SLIDES OFF TO THE EAST WINDS WILL COME AROUND TO THE SOUTH. HIGHS WILL RANGE FROM THE UPPER 60S TO THE LOWER 70S AND LOWS TONIGHT WILL BE COOL.
06Z SFC ANALYSIS SHOWS THAT THE COLD FRONT HAS NOW JUST PASSED SE OF THE I-59 CORRIDOR. OTHERWISE SHOULD BE A SPLENDID DAY WITH MUCH WARMER TEMPS REACHING THE L-M70S. WILL INTRODUCE A SLIGHT CHC OF -SHRA BY LATE SATURDAY NIGHT AS THE WARM FRONT APPROACHES.
351 AM EDT FRI MAR 25 2016 LOW PRESSURE AND ITS COLD FRONT WILL FINISH CROSSING THE AREA THIS MORNING.
SEPARATELY, A LARGE CLUSTER OF STRONG STORMS HAS DEVELOPED OVER THE LOWER KEYS AND FLORIDA BAY THAT IS NOW TRACKING NE TOWARDS THE MAINLAND AS IT TURNS INTO THE FLOW. MODELS ARE SHOWING A SMALL INCREASE IN MID LEVEL RIDGING SAT AND SUN OVER SOUTH FLORIDA, ALLOWING FOR SOME DRY AIR ADVECTION AND A SLIGHT WARMING IN MID LEVEL TEMPS. AFTERNOON HIGHS REMAIN VERY WARM IN THE MID-UPPER 80S, THOSE THE INCREASE IN EASTERLY FLOW MAY KEEP THE IMMEDIATE EAST COAST METRO IN THE LOW 80S ON SUN.
BEFORE BECOMING SOUTHWEST AHEAD OF THE 250 MB UPPER TROUGH MOVING INTO THE NORTHERN PLAINS.
440 AM EDT FRI MAR 25 2016 RAIN CONTINUES ACROSS THE NORTH COUNTRY THIS MORNING WITH POCKETS OF FREEZING RAIN CHANGING TO RAIN IN WARMING TEMPERATURES BEFORE TAPERING OFF THIS AFTERNOON. HIGH PRESSURE BUILDS IN FOR THE WEEKEND AND BRINGS SUNSHINE AND DRIER CONDITIONS.
RAPID COLD FRONTAL SWEEP THROUGH ALL BUT FAR SERN QUARTER CWA BY 00 UTC WITH LEADING ISOLD-SCT TSRA EXITING CWA. HIGH PRESSURE WILL MOVE ACROSS THE REGION FOR THE START OF THE PERIOD.
155 AM EDT FRI MAR 25 2016 A LOW IN SOUTHERN MICHIGAN WILL MOVE NORTHEAST INTO MAINE FRIDAY PULLING A COLD FRONT ACROSS THE AREA TONIGHT. HIGH PRESSURE MOVES EAST ACROSS THE REGION LATE FRIDAY INTO SATURDAY.
CLEAR/CLEARING SKY WITH RIDGE OF HIGH PRESSURE BUILDING INTO THE SOUTHERN APPALACHIANS.
WITH THE AREA POSITIONED BETWEEN THE RIDGE AND TROUGH, EXPECT MAINLY DRY CONDITIONS WITH ONLY CHANCE OR SLIGHT CHANCE OF LIGHT RAIN OVER NORTHWEST PORTIONS OF THE AREA, MAINLY IN DOUGLAS AND COOS COUNTIES. THE UPPER RIDGE WILL GRADUALLY SHIFT INLAND OVER THE AREA FRIDAY NIGHT. HOWEVER A LOW POSITIONED IN THE GULF OF ALASKA WILL MOVE OVER THE RIDGE AND BRING A WARM FRONT TO THE COAST BY EARLY SATURDAY MORNING.
428 AM EDT FRI MAR 25 2016 AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL STRENGTHEN OVER THE REGION TODAY AND TEMPS WILL TAKE A DIP AS WINDS BECOME NORTHERLY.
343 AM CDT FRI MAR 25 2016 Today through Tonight, an upper level trough across WY and western CO will move east-southeast and amplify across western KS Tonight, then lift east-northeast across the state late tonight. Tonight, a combination of ascent ahead of the upper level trough and isentropic lift, in advance of residual moisture return at 850mb, will cause an area of light rain to develop across the CWA after midnight.
353 AM CDT FRI MAR 25 2016 AT H5 RIDGE OFF THE PACIFIC COAST INTO THE GULF OF ALASKA WITH WAVE DROPPING THROUGH NORTHWEST FLOW IN NORTHERN ROCKIES AND ANOTHER IN THE GREAT LAKES REGION. COOLER WEST OVER THE NEBRASKA PANHANDLE AND WARMER TO THE SOUTH AND EAST BUT TEMPERED BY SNOW FIELD FROM KIML TO SUTHERLAND AND FROM STAPLETON TO ONEILL.
425 AM EDT FRI MAR 25 2016 A COLD FRONT WITH RAIN SHOWERS WILL MOVE THROUGH THE REGION THIS MORNING. THE WEEKEND WILL BE DRY AND MILD WITH HIGH PRESSURE.