Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE 9 AM EDT REGIONAL SURFACE ANALYSIS SHOWED A WEAK WARM FRONT FROM NORTHEAST TX TO ABOUT 25 MILES SOUTH OF APALACHICOLA. VAPOR IMAGERY AND UPPER AIR DATA SHOWED A BROAD, FLAT UPPER LEVEL RIDGE OVER THE GULF COAST.
A BROAD AND EXPANSIVE HIGH PRESSURE SYSTEM PREVAILS ACROSS THE NORTHWEST ATLANTIC OCEAN AND THE EASTERN UNITED STATES. HIGH PRESSURE OVER THE WESTERN ATLANTIC WILL MAINTAIN MODERATE TO FRESH EAST BREEZES THIS AFTERNOON. THIS HIGH PRESSURE SYSTEM WILL EXPAND AND PERSIST THROUGH LATE THIS WEEK.
1016 AM CDT MON APR 6 2015 WARM FRONT HAS PUSHED THROUGH AND IS NOW WELL NORTH OF THE FORECAST AREA. AS A DECENT GRADIENT IS PROGGED TO REMAIN IN PLACE ACROSS THE REGION TODAY AS LOW PRESSURE TRAVERSES THE SRN PLAINS. A COLD FRONT HAS STALLED ALONG THE COAST THIS PAST EVENING WITH TEMPS IN THE 60S AND A FEW 50S NORTH OF THE BOUNDARY AND 70S TO THE SOUTH. A MID TO UPPER LVL RIDGE WILL BUILD INTO THE AREA THIS AFTERNOON/EVENING AND LINGER OVER THE AREA INTO THE SECOND HALF OF THE WEEK.
928 AM EDT MON APR 6 2015 A SHORT WAVE TROUGH WILL SLIDE EAST ACROSS THE FORECAST AREA TODAY.
MORE AMPLIFIED FLOW IS INDICATED FOR LATE WEEK AS THE WESTERN STATES UPPER TROUGH PROGRESSES EASTWARD. LIKELY POPS WERE THUS MAINTAINED UNTIL COOL HIGH PRESSURE UNDER THE PASSING UPPER TROUGH DRIES THE WEEKEND. MID LEVEL MOISTURE AND CLOUDS OVER THE LOWER OHIO VALLEY WILL SPREAD EASTWARD ACROSS THE TAF SITES THIS MORNING BUT SHOULD REMAIN AT OR ABOVE 3. CONSIDERING HOW DRY THE LOWER LEVELS ARE AT THIS TIME.
AS A DECENT GRADIENT IS PROGGED TO REMAIN IN PLACE ACROSS THE REGION TODAY AS LOW PRESSURE TRAVERSES THE SRN PLAINS. A COLD FRONT HAS STALLED ALONG THE COAST THIS PAST EVENING WITH TEMPS IN THE 60S AND A FEW 50S NORTH OF THE BOUNDARY AND 70S TO THE SOUTH. A MID TO UPPER LVL RIDGE WILL BUILD INTO THE AREA THIS AFTERNOON/EVENING AND LINGER OVER THE AREA INTO THE SECOND HALF OF THE WEEK.
158 PM EDT THU MAR 26 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL OCCUR AHEAD OF A STRONG COLD FRONTAL SYSTEM THIS EVENING. A LARGE HIGH PRESSURE SYSTEM WITH COLD AIR WILL DOMINATE OUR REGION INTO THE WEEKEND. TEMPERATURES JUST ABOVE FREEZING IN MOUNTAINS TO MID 40S IN LOWER SUSQUEHANNA VALLEY.
CONVECTION IS FINALLY STARTING TO DEVELOP AHEAD OF THE COLD FRONT PRESENTLY FROM TUP-HKS-HEZ. BLOCKING EFFECT FROM LARGE CONVECTIVE AREA OVER THE NORTHERN GULF HAS ONLY ALLOWED WEAK MOISTURE CONVERGENCE ALONG THE BOUNDARY WITH DEWPOINTS MAINLY IN THE LOWER 60S IN ADVANCE.
404 PM EDT THU MAR 26 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL OCCUR AHEAD OF A STRONG COLD FRONTAL SYSTEM THIS EVENING. A LARGE HIGH PRESSURE SYSTEM WITH COLD AIR WILL DOMINATE OUR REGION INTO THE WEEKEND. TEMPERATURES JUST ABOVE FREEZING IN MOUNTAINS TO MID 40S IN LOWER SUSQUEHANNA VALLEY.
511 PM CDT THU MAR 26 2015 UPDATED THE SKY COVER GRIDS FOR TONIGHT SHOWING GRADUALLY CLEARING FROM THE NORTHWEST AS THE COLD FRONT PUSHES SOUTHEAST OF THE MIDSOUTH.
258 PM CDT THU MAR 26 2015 SKIES HAVE CLEARED OUT BEHIND THIS MORNING'S COLD FRONT. AND IT WILL BE COOL WITH LOW TEMPERATURES IN THE LOW TO MID 40S WELL INLAND AND IN THE LOW TO MID 50S AT THE COAST.
STRONG HIGH PRESSURE OVER THE REGION WILL ALLOW LOWER DESERT TEMPERATURES TO APPROACH RECORD LEVELS. IN THE THE LOW TO MID 90S. WEAK LOW PRESSURE. IS EXPECTED TO BRING SLIGHTLY COOLER TEMPERATURES AND AN INCREASE IN CLOUDINESS TO THE REGION.
140 PM PDT THU MAR 26 2015 A STRONG RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE REGION PROVIDING DRY WEATHER AND PUSHING TEMPERATURES WELL ABOVE NORMAL THROUGH THE END OF THE WEEK. SATELLITE LOOPS SHOW MAINLY CLEAR SKIES OVER THE WFO HANFORD WARNING/FORECAST AREA TODAY AS A BUILDING UPPER-LEVEL RIDGE IS FIRMLY IN PLACE.
249 PM CDT THU MAR 26 2015 12Z UA ANALYSIS HAS AN 850MB COLD FRONT FROM THE EASTERN GREAT LAKES INTO NORTHERN OKLAHOMA. WEAK TROFS WERE ACROSS THE NORTHERN PLAINS AND NORTHERN GREAT LAKES. 18Z SFC ANALYSIS HAS A COLD FRONT FROM NEAR KPIR TO KMKG. A WELL MIXED LOWER ATMOSPHERE HAS KEPT THE LOW CLOUDS FROM NORTHEAST IOWA INTO WISCONSIN FROM MAKING MUCH SOUTHWARD PROGRESS. THE WEAK COLD FRONT WILL MOVE THROUGH THE AREA THIS EVENING. THIS FEATURE COMBINED WITH A STABILIZING ATMOSPHERE MAY ALLOW THE LOW CLOUDS TO START MOVING SOUTH INTO THE AREA. THEN LOW TEMPERATURES TONIGHT COULD END UP BEING WARMER. IF THE LOW CLOUDS MOVE INTO THE AREA OVERNIGHT THEN THERE WOULD BE MORE CLOUDS AROUND FOR AT LEAST FRIDAY MORNING. THEN HIGH TEMPERATURES ON FRIDAY WOULD BE MUCH COOLER.
PRECIPITATION TYPE WILL BE SIMPLE WITH NO ABOVE FREEZING WARM LAYER ALOFT THROUGH THE DAY. EXCEPT SOME 50S EXTREME SOUTHWEST WHICH WILL MAKE IT 20 DEGREES WARMER THAN IN THE WET SNOW TODAY.
A CANDADIAN COLD FRONT EXTENDED FROM GREEN BAY TO THE TWIN CITIES TO ABERDEEN SOUTH DAKOTA. THIS WILL COLD AIR ALONG WITH SOME SNOW ON THE GROUND IN SOME PLACES WILL KEEP HIGH TEMPERATURES IN THE LOWER AND MID 30S. 12Z MODELS CONTINUE TO SHOW THAT A SHORT WAVE TROUGH WILL MOVE QUICKLY SOUTHEAST THROUGH WESTERN MINNESOTA AND WESTERN IOWA.
HIGH PRESSURE ALOFT WILL RESULT IN A SUNNY AND WARM DAY FOR FRIDAY.
MOSTLY SUNNY SKIES ACROSS THE REGION TODAY AS AN UPPER RIDGE EDGES INTO THE 4 CORNERS REGION. UPPER RIDGE REMAINS IN PLACE SO WARM AND DRY CONDITIONS WILL CONTINUE WITH N-NW FLOW CONTINUING. LOOK FOR A BIT WARMER OVERNIGHT TEMPS TONIGHT AS 700MB AND 850MB TEMPS WARM BY ABOUT 5 DEG C. GFS AND NAM MODELS HINTED AT AN ISOLATED AFTN SHOWER OVER THE HIGHER TERRAIN WHILE THE EC REFRAINED. BRINGING A SLIGHT CHANCE FOR A FEW SHOWERS ACROSS THE HIGHER TERRAIN OF THE EASTERN MOUNTAINS DURING THE EVENING.
OUR FAR SOUTHWESTERN ZONES WILL BE MUCH WARMER AND WINDIER THIS AFTERNOON WITH TEMPERATURES IN THE 50S AND LOWER 60S. AM MORE CONCERNED THAT WE COULD SEE SOME SNOW MIXED IN FRIDAY MORNING WHEN THE TEMPERATURES ARE COOLER. NOT EXPECTING ACCUMULATING SNOW DUE TO BOTH THE WARM GROUND AND SFC AIR TEMPERATURES THAT WILL LIKELY BE SEVERAL DEGREES ABOVE FREEZING. THIS WILL RESULT IN GENERALLY LIGHT WINDS WITH A WESTERLY COMPONENT PRIOR TO THE LOW TRACKING THROUGH AND THEN A NORTHEASTERLY WIND BEHIND THE LOW BY LATE AFTERNOON/EARLY EVENING.
COLD FRONT HAS WORKED EAST OF BNA AND WINDS ARE VEERING TO THE NORTH AT CSV NOW. /ISSUED 1015 AM CDT THU MAR 26 2015/ COLD FRONT EXTENDING FROM EASTERN KENTUCKY DOWN THROUGH NORTHWEST MIDDLE TENNESSEE.
MEDIUM COLD ADVECTION WITH PRONOUNCED AND VERY COLD THERMAL TROUGH IN THE MORNING HOURS.
A HIGH PRESSURE CENTER OVER THE TX PANHANDLE. AND A FRONTAL TROUGH OVER LA/WRN GULF. ANOTHER COLD FRONT WILL SWEEP RAPIDLY SOUTHWARD THROUGH N TX FRIDAY MORNING. /ISSUED 351 AM CDT THU MAR 26 2015/ THE COLD FRONT CONTINUES TO QUICKLY PUSH SOUTHEAST AND IS JUST ABOUT OUT OF THE CWA. TEMPERATURES WILL BE MUCH COOLER THAN YESTERDAY WITH COLD ADVECTION CONTINUING THROUGH THE DAY. HOWEVER THE SPRING SUNSHINE WILL HELP WARM TEMPS INTO THE LOW TO MID 60S BY LATE AFTERNOON. THE UPPER LEVEL PATTERN FRIDAY AND THIS WEEKEND WILL FEATURE A LARGE RIDGE ACROSS THE WESTERN U. WITH A DEEP TROUGH OVER THE EAST.
MODELS ARE IN AGREEMENT WITH MID-UPPER TROUGH IN MIDDLE OF U. THIS WILL PUSH A COLD FRONT AND LEADING EDGE WEATHER INTO THE NORTHERN ZONES TONIGHT AND THROUGH THE SOUTHERN ZONES FRIDAY. TWO AREAS OF CONVECTION EXIST WITH THE FIRST FROM FRANKIN COUNTY SOUTHWEST INTO THE GULF AND THE SECOND AREA OF CONVECTION ASSOCIATED WITH THE COLD FRONT FROM ST JOE BAY SOUTH INTO THE GULF. STRONG COLD FRONT AND RAIN CHANCES TO QUICKLY EXIT THE AREA FRIDAY NIGHT WITH STRONG HIGH PRESSURE BUILDING INTO THE REGION ON NW FLOW ALOFT.
124 PM EDT THU MAR 26 2015 THE COLD FRONT THAT MOVED THROUGH YESTERDAY WAS STALLED ACROSS SOUTHERN OHIO AND WESTERN PENNSYLVANIA.
A COLD FRONT STRETCHING FROM LOUISIANA INTO THE NW GULF OF MEXICO WILL CONTINUE TO PUSH SOUTHEASTWARD. THE UPPER LEVEL TROUGH WILL DIG SUFFICIENTLY TO SEND THIS FRONT ALL THE WAY ACROSS SOUTH FL BY FRI NIGHT. BEHIND THE FRONT FRI NIGHT, MUCH COOLER AND DRIER AIR WILL SWEEP DOWN THE PENINSULA.
SOME REDEVELOPMENT OF SHOWERS AND STORMS WILL BE POSSIBLE LATER TONIGHT AS THE PRIMARY COLD FRONT ARRIVES. TEMPERATURES SHOULD BEGIN FALLING BEHIND THE COLD FRONT LATER TONIGHT AND THE FALLING TEMPERATURES MAY CONTINUE THROUGH THE MORNING HOURS DURING THE DAYTIME TOMORROW.
LEFTOVER SHOWERS MAINLY CONFINED TO THE TERRAIN OF THE BLACK HILLS AND DOWNSTREAM CONVERGENCE AREA NEAR THE PINE RIDGE. LEFTOVER MORNING SHOWERS WILL END AS THE FRONT SHIFTS EAST AS A WARM FRONT WITH MUCH WARMER TEMPERATURES EXPECTED.
AN UPPER LEVEL RIDGE WILL LIKELY BE IN PLACE ACROSS NORTHERN ARIZONA THROUGH THE WEEKEND.
ALONG WITH THE WINDS TURNING TO THE NORTH WILL LIMIT HIGHS IN THE NORTH TO THE LOWER 40S. FORECAST SOUNDINGS SHOW A LOT OF COOL AIR WITH THIS SYSTEM WITH WARM AIR IN THE LOWEST 2KFT.
206 PM EDT THU MAR 26 2015 SHOWERS AND ISOLATED THUNDERSTORMS WILL OCCUR AHEAD OF A STRONG COLD FRONTAL SYSTEM THIS EVENING. A LARGE HIGH PRESSURE SYSTEM WITH COLD AIR WILL DOMINATE OUR REGION INTO THE WEEKEND. TEMPERATURES JUST ABOVE FREEZING IN MOUNTAINS TO MID 40S IN LOWER SUSQUEHANNA VALLEY.
STRENGTHENING HIGH PRESSURE ALOFT WILL THEN BRING EVEN WARMER TEMPERATURES. MOSTLY THIN CIRRUS LEVEL CLOUDS HAVE BEEN MOVING SOUTH ACROSS ARIZONA TODAY AS THE STATE IS ON FRONT SIDE OF AMPLIFYING UPPER RIDGE OVER THE WEST COAST.
STRONG HIGH PRESSURE WILL BRING RECORD HIGH TEMPERATURES TOMORROW AT MANY LOCALES.
308 PM EDT THU MAR 26 2015 LOW PRESSURE WILL MOVE ACROSS SOUTHERN NEW ENGLAND THIS EVENING.
AN UPPER RIDGE WILL SHIFT EAST THROUGH FRIDAY. A COLD FRONT WILL MOVE THROUGH WESTERN WASHINGTON FRIDAY NIGHT. A WEAK UPPER RIDGE WILL STEER WEATHER SYSTEMS INTO BRITISH COLUMBIA OVER THE WEEKEND.
RETURN TO WEST WIND IS SHORT LIVED AS A WEAK REINFORCING COLD FRONT PUSHES INTO THE ROLLING PLAINS WITH A RELAXED PRESSURE GRADIENT ACROSS THE SOUTH PLAINS. THIS MAY RESULT IN LIGHT AND VARIABLE WIND DURING THE DAY BUT TEMPERATURES WILL BE ABOUT 10 DEGREES WARMER THAN TODAY WITH MOSTLY CLEAR SKIES. JORDAN AMPLIFIED UA RIDGING IMPACTING THE WRN CONUS WILL GRADUALLY SHIFT EWRD TOWARDS THE SOUTHERN PLAINS THIS WEEKEND.
308 PM CDT THU MAR 26 2015 NORTHWEST WINDS HAVE INCREASED TO AROUND 15 TO 20 MPH WITH HIGHER GUSTS BEHIND A COLD FRONT THAT MOVED ACROSS THE REGION TODAY. TEMPERATURES TONIGHT TO FALL INTO THE UPPER 30S TO LOWER 40S AREAWIDE AS COOL HIGH PRESSURE BUILDS ACROSS THE REGION.
A LONGWAVE TROF OVER THE CENTRAL STATES DEEPENS WHILE ADVANCING INTO THE EASTERN STATES. A COLD FRONT CURRENTLY ADVANCING ACROSS MISSISSIPPI AND NORTHERN ALABAMA.
THE COMBINATION OF THE UPPER TROUGH WITH GOOD SPEED DIVERGENCE AND DIFFLUENCE ALOFT AS THE TROUGH MOVES EAST IS PROVIDING A FAVORABLE MID LEVEL ASCENT FOR SOME THUNDERSTORMS TO DEVELOP AND PRODUCE HAIL. HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE DAY AND FRIDAY NIGHT WITH TEMPERATURES IN THE UPPER 50S.
High pressure will continue to dominate weather through late Friday as ridge axis begins to shift eastward. Temperatures on Friday will be similar to today, maybe a degree or two warmer.
516 PM EDT THU MAR 26 2015 LOW PRESSURE WILL MOVE ACROSS SOUTHERN NEW ENGLAND THIS EVENING.
/ISSUED 935 AM CDT THU MAR 26 2015/ THE COLD FRONT HAS PASSED THROUGH OUR CWA AND TAKEN NEARLY ALL OF THE SHOWERS AND THUNDERSTORMS WITH IT. THE COLD FRONT HAS PUSHED SOUTH OF THE DRT/AUS/SAT/SSF TAF SITES. /ISSUED 606 AM CDT THU MAR 26 2015/ A STRONG COLD FRONT CONTINUES TO PUSH ACROSS THE AREA EARLY THIS MORNING. IN THE WAKE OF THE COLD FRONT.
UPPER AIR ANALYSIS THIS MORNING SHOWED THE TROUGH EXTENDING FROM THE WESTERN GREAT LAKES TO WEST TEXAS. AT THE SURFACE THE COLD FRONT HAS MOVED OFF THE COAST AND COOLER. THE UPPER TROUGH AXIS WILL MOVE ACROSS TEXAS TONIGHT AND NORTHWESTERLY FLOW WILL MOVE IN. LOOKING FOR DRY WEATHER WITH A CHILLY MORNING ON FRIDAY AND THEN WARMER THROUGH THE REST OF THE PERIOD.
Upper level trough rather prominent on water vapor satellite imagery this afternoon, generally marking the back edge of the cloud line. 850mb cold air advection into area after the cold front that has moved east of region, with pcpn cleared area.
A SHARP HIGH PRESSURE RIDGE WILL MOVE INTO IDAHO TONIGHT AND FRIDAY PROVIDING AFTERNOON HIGH TEMPERATURES NEAR RECORD VALUES IN THE SNAKE PLAIN.
SHOWERS AND THUNDERSTORMS, SOME POTENTIALLY WITH STRONGER WIND GUSTS, LOOK MOST LIKELY TO AFFECT APF/PBI NEAR THE END OF THE TAF PERIOD TOMORROW AS A STRONG COLD FRONT ARRIVES. /ISSUED 757 AM EDT THU MAR 26 2015/ COOLER TEMPS ALOFT AND BETTER MOISTURE PROFILE, IN COMBINATION WITH STRONGER SOUTHERLY FLOW, GIVES A MUCH BETTER CHANCE FOR SHOWERS AND A FEW STORMS TODAY. /ISSUED 414 AM EDT THU MAR 26 2015/ THE GLOBAL MODELS HAVE BEEN VERY CONSISTENT INDICATING MORE SOUTHERLY FLOW AND INCREASING MOISTURE ACROSS THE REGION TODAY IN ADVANCE OF A STRONG COLD FRONT FORECAST TO APPROACH THE EASTERN SEA BOARD AND INTO THE CENTRAL GULF TONIGHT INTO FRIDAY MORNING.
1107 AM MDT THU MAR 26 2015 18Z TAF CYCLE UPPER RIDGE BUILDING OVER NEW MEXICO WITH WEAK LEE TROF.
315 PM CDT THU MAR 26 2015 ACTIVE AND COOLER PATTERN IS IN PLACE ACROSS THE CONUS. SUBJECTIVE 12Z UPPER AIR ANALYSIS INDICATES 500MB TROUGH DIGGING INTO THE GREAT LAKES. WITH A COLD FRONT ACROSS MN/CENTRAL NEB TOWARD NM. THE REST OF THE NIGHT WILL BE DRY AND COOL AS HIGH PRESSURE SLIDES THROUGH THE AREA. A SHARP THERMAL GRADIENT WILL REMAIN ACROSS THE CWA AS UPPER-LEVEL TROUGH CONTINUES TO DIG INTO THE EAST AND RIDGING BUILDS TO THE WEST.
19Z SFC ANALYSIS REVEALED THAT YESTERDAYS COLD FRONT HAS NEARLY MADE IT TO THE SOUTHERN RIO GRAND VALLEY. A WEAK COLD FRONT WILL PUSH SOUTH INTO THE REGION THROUGH FRI MORNING. WITH LOWS FRI AM DIPPING INTO THE LOW/MID 30S ACROSS NRN OK. WITH A FEW SITES POSSIBLY DIPPING NEAR FREEZING FOR AN HOUR OR TWO. HIGHS WILL BE A TOUCH WARMER THAN TODAY. IN THE MID 60S IN OK TO THE LOW 70S IN WRN N TX FOR TMRW. EXPECT A SLOW WARM UP INTO THE WEEKEND AS A SHORT RIDGE BUILDS INTO THE FOUR CORNERS AND S/SW LL FLOW RETURNS TO THE REGION.
This will help keep temperatures a bit warmer ahead of this feature and model soundings are indicating that precipitation tonight will fall as rain with the exception of areas near the Missouri/Iowa border where snow may mix in but no accumulation is expected.
330 PM MDT THU MAR 26 2015 A LARGE RIDGE OF HIGH PRESSURE ALONG THE WEST COAST WILL BE SHIFTING FARTHER INLAND THROUGH FRIDAY. MOISTURE TOPPING THE RIDGE WILL RIDE THIS NW FLOW INTO CO THROUGH EVENING FOR SOME CLOUDINESS FOR NW CO AND DOWN ALONG THE DIVIDE. BOTH NAM AND GFS SHOW WEAK DISTURBANCES THESE SHOULD HAVE LITTLE EFFECT ON ANY OTHERWISE MOSTLY SUNNY AND WARMER DAY. TEMPERATURE GUIDANCE SUGGESTS THAT LOW TEMPS IN THE FRUIT GROWING AREAS OF THE GRAND VALLEY AND NORTH FORK VALLEY SHOULD GENERALLY STAY ABOVE FREEZING TONIGHT. COULD STILL SEE POCKETS OF FREEZING TEMPS THOUGH.
229 PM CDT THU MAR 26 2015 FRONTAL SYSTEM NOW EAST OF NASHVILLE WITH MUCH COOLER TEMPS POURING INTO THE MID STATE AT EARLY AFTERNOON. SHARP UPPER TROUGH AXIS DOWN THROUGH FAR WESTERN TENNESSEE WILL SHIFT SLOWLY EAST TONIGHT. LOWS TONIGHT DOWN INTO THE LOW TO MIDDLE 30S. THERE COULD BE AN ISOLATED SPOT OR TWO THAT CLIPS THE FREEZING MARK NEAR THE KENTUCKY BORDER TONIGHT FROM STEWART COUNTY EAST INTO ROBERTSON COUNTY. FRIDAY NIGHT TEMPS DOWN INTO THE LOW TO MIDDLE 20S SO LOOKING FOR A HARD FREEZE SOME AREAS.
559 PM EDT THU MAR 26 2015 A COLD FRONT WILL SLOWLY SHIFT SOUTH THROUGH OUR REGION TONIGHT AND FRIDAY.
MUCH OF THIS CLOUD COVER OVER NORTHERN ALABAMA IS IN ASSOCIATION WITH SEVERAL WEAK CONVERGENCE BOUNDARIES AHEAD OF THE MAIN COLD FRONT WHICH STRETCHES FROM WEST VIRGINIA SOUTHWEST INTO NW TN AND NORTHERN ARKANSAS. THEREFORE WILL KEEP THE LOW 20 TO 30 PERCENT CHANCE OF A SHOWER OR THUNDERSTORM THROUGH 1 PM. MUCH COOLER AIR WILL QUICKLY PUSH IN BEHIND THE FRONT. EXPECT HIGHS BEFORE THE FRONT PUSHES THROUGH TO REACH THE LOWER TO MID 70S EAST OF I-65 AND THE UPPER 60S IN NW AL AND IN HIGHER ELEVATIONS.
HIGH PRESSURE WILL REBUILD SAT AND SUN FOR A RETURN OF DRY WEATHER. IT IS RUNNING INTO A LONG-WAVE RIDGE AND WILL LIKELY SLOW DOWN AND WEAKEN CONSIDERABLY DURING THE NEXT 24 HOURS. LOW LEVEL MOISTURE WILL PUSH INTO THE INTERIOR VALLEYS BEHIND THE FRONT FRIDAY NIGHT AS N-NW FLOW INCREASES AND HIGH PRESSURE BUILDS OFFSHORE.
206 PM PDT THU MAR 26 2015 HIGH PRESSURE AND WELL ABOVE NORMAL AFTERNOON TEMPERATURES ARE EXPECTED THROUGH FRIDAY.
RELATIVELY QUIET WEATHER THIS MORNING AS SYSTEM PULLS AWAY TO THE SOUTH AND HIGH PRESSURE MOVES INTO THE MISSOURI RIVER VALLEY. SOUNDINGS WOULD INDICATE THE LOW LEVELS REMAIN QUITE DRY ACRS THE WEST AND WOULD ANTICIPATE SOME VIRGA AND AT MOST.
447 PM MDT THU MAR 26 2015 A LARGE RIDGE OF HIGH PRESSURE ALONG THE WEST COAST WILL BE SHIFTING FARTHER INLAND THROUGH FRIDAY. MOISTURE TOPPING THE RIDGE WILL RIDE THIS NW FLOW INTO CO THROUGH EVENING FOR SOME CLOUDINESS FOR NW CO AND DOWN ALONG THE DIVIDE. BOTH NAM AND GFS SHOW WEAK DISTURBANCES THESE SHOULD HAVE LITTLE EFFECT ON ANY OTHERWISE MOSTLY SUNNY AND WARMER DAY. TEMPERATURE GUIDANCE SUGGESTS THAT LOW TEMPS IN THE FRUIT GROWING AREAS OF THE GRAND VALLEY AND NORTH FORK VALLEY SHOULD GENERALLY STAY ABOVE FREEZING TONIGHT. COULD STILL SEE POCKETS OF FREEZING TEMPS THOUGH.
338 PM CDT THU MAR 26 2015 THE MAIN FORECAST ISSUE IN THE SHORT TERM PERIOD WILL BE PRECIPITATION AMOUNTS AND TYPE TONIGHT AND FRIDAY ASSOCIATED WITH A WEAK TROUGH OF LOW PRESSURE MOVING ACROSS WESTERN AND CENTRAL NORTH DAKOTA. A BUILDING WESTERN RIDGE WILL PUSH THE TROUGH INTO FAR EASTERN MONTANA AS A WARM FRONT.
535 PM EDT THU MAR 26 2015 A STRONG COLD FRONT WILL PUSH SOUTHEAST ACROSS THE REGION THIS EVENING. A LARGE HIGH PRESSURE SYSTEM WITH COLD AIR WILL DOMINATE OUR REGION INTO THE WEEKEND. RADAR SHOWING A DEVELOPING LINE OF CONVECTION ALONG COLD FRONT AT 21Z. AS IT ENTERS THE LOWER SUSQ VALLEY. LGT PRECIP RTS AND MARGINAL SFC TEMPS SHOULD LIMIT ANY MINOR ACCUMS TO THE HIGHER TERRAIN OF THE ALLEGHENIES. TEMPERATURES JUST ABOVE FREEZING IN MOUNTAINS TO MID 40S IN LOWER SUSQUEHANNA VALLEY.
HIGH PRESSURE WILL BUILD INTO THE REGION TONIGHT AND DOMINATE THE WEATHER THROUGH INTO FRIDAY NIGHT.
336 PM CDT THU MAR 26 2015 AS AN UPPER LEVEL TROUGH CONTINUES TO MOVE OFF TO OUR EAST TODAY.
A MUCH COOLER AND DRIER AIR MASS DESCENDS INTO THE UPPER MIDWEST TODAY. OTHERWISE COOL AND DRY AS HIGH PRESSURE MOVES ACROSS NORTHERN MINNESOTA TONIGHT INTO TOMORROW. COOLER. NEAR CALM WINDS AS THE HIGH PRESSURE BECOMES CENTERED OVER NORTHERN MINNESOTA. HIGHS IN THE LOW TO MID 30S. THE UPPER FLOW WILL BE NORTHWEST THROUGH MUCH OF THE PERIOD A WESTERN RIDGE PERSISTING.
Much above normal temperatures are expected for most areas due to the formation of surface lee troughing with downslope flow and mostly clear skies.
TONIGHT THROUGH FRIDAY RIDGE WILL CONTINUE TO BUILD INTO THE AREA WITH ISENTROPIC UPGLIDE CLOUDINESS GRADUALLY DECREASING TONIGHT LEAVING ALL BUT THE NE CORNER SUNNY OR MOSTLY SUNNY ON FRIDAY. A FEW FLURRIES WERE NOTED OVER THE HIGHER NRN MTNS THIS MORNING BUT THAT'S ABOUT IT. FRIDAY WILL BE ANOTHER 8-10 DEGREES WARMER FOR MANY AREAS. JUST WARMER.
CURRENT COLD FRONT NOW STRETCHING FROM SOUTHWESTERN LOUISIANA TO WESTERN TENNESSEE TO SOUTHERN OHIO.
WITH HIGH PRESSURE SINKING SOUTH AND LIGHT NORTHWEST FLOW BY MORNING. GENERALLY WENT CLOSE TO THE COOLER SIDE OF GUIDANCE MAINLY INLAND AREAS ALTHOUGH COULD BE COOLER NEAR THE COAST IF THOSE LIGHT SOUTHWEST LAND BREEZE WINDS KICK IN.
HIGH PRESSURE WILL SETTLE IN OVER THE REGION TONIGHT.
321 PM CDT THU MAR 26 2015 AS OF 19Z THE COLD FRONT MENTIONED IN EARLIER DISCUSSIONS WAS STARTING TO ENTER NW ALABAMA. ANOTHER ROUND OF LIGHT SHOWERS ARE POSSIBLE FRIDAY AFTERNOON AS THE UPPER LEVEL TROUGH AXIS SWINGS THROUGH THE AREA. A REINFORCING SHOT OF COLD AIR ARRIVES FRIDAY NIGHT WITH TEMPERATURES EXPECTED TO DROP TO FREEZING FOR MOST AREAS. DUE TO THE WARM TEMPERATURES OF LATE WE HAVE STARTED TO ENTER THE GROWING SEASON AND ANY TYPE OF BELOW FREEZING TEMPERATURES WOULD WARRANT SOME SORT OF FREEZE PRODUCT.
247 PM CDT THU MAR 26 2015 PRECIPITATION AND CLOUD COVER WILL CONTINUE TO DECREASE FROM THE WEST WITH THE DEPARTURE OF A STORM SYSTEM AND ATTENDANT COLD FRONT. THE CENTER OF THE HIGH PRESSURE AREA SLOWLY OVERSPREADING THE REGION IN THE WAKE OF THIS SYSTEM WILL TRACK TO JUST NORTH AND EAST OF OUR REGION BY THE END OF THE SHORT TERM PERIOD. THIS TRACK PUTS OUR CWA ON THE WESTERN FRINGES OF THE HIGH PRESSURE AREA.
208 PM EDT THU MAR 26 2015 A COLD FRONT WILL SLOWLY SHIFT SOUTH THROUGH OUR REGION TONIGHT AND FRIDAY.
358 PM CDT Thu Mar 26 2015 (Tonight and Friday) Look for dry conditions, cooler temperatures, and light winds. Overnight lows will be mainly in the lower to mid 40s, with possibly upper 30s at some locations along our Interstate 10 corridor.
534 PM CDT THU MAR 26 2015 A FAST MOVING BUT WEAK COLD FRONT WILL MOVE THROUGH THE TAF SITES OVERNIGHT.
HIGH PRESSURE IS FIRMLY IN CONTROL OF OUR WEATHER THIS AFTERNOON. 24 HOUR TRENDS ELSEWHERE SHOW MUCH WARMER TEMPERATURES, BUT ALSO HIGHER MOISTURE, WHICH WILL YIELD HIGHER CROSS-OVER TEMPERATURES AND INCREASE THE POTENTIAL FOR FOG. THIS WILL RESULT IN A COOL DOWN COMPARED TO TODAY, BUT IT WILL STILL BE WARMER THAN NORMAL IN MOST LOCATIONS.
426 PM CDT THU MAR 26 2015 A COLD FRONT IS EXITING LOWER ACADIANA THIS EVENING WITH TEMPERATURES FALLING ACROSS SOUTHEAST TEXAS AND WESTERN LOUISIANA. HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH THE WEEKEND WITH COOL MORNING LOWS AND MILD AFTERNOON HIGH TEMPERATURES.
HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
A STRONG HIGH PRESSURE RIDGE IS LOCATED DIRECTLY OVER CALIFORNIA THIS AFTERNOON. DOWNTOWN SAN FRANCISCO IS RUNNING 77F WHICH IS 11F WARMER THAN YESTERDAY AT 2PM. TEMPERATURES AT 850MB HAVE RISEN 4-6C OVER THE LAST 14 HOURS AND ARE CORRESPONDING TO SURFACE TEMPERATURES THAT ARE ANYWHERE BETWEEN 10 AND 25F DEGREES WARMER AT THE SURFACE. THIS HIGH PRESSURE SYSTEM IS NEARLY 2 STANDARD DEVIATIONS STRONGER THAN NORMAL WHICH TYPICALLY CORRESPONDS TO UNSEASONABLY WARM TEMPERATURES THAT ARE WITHIN A FEW DEGREES OF RECORD VALUES. TEMPERATURES ARE EXPECTED ONLY MARGINALLY COOLER ON FRIDAY AS THE RIDGE SHIFTS DOWNSTREAM INTO THE GREAT BASIN AND THE OFFSHORE GRADIENTS WEAKEN.
344 PM CDT Thu Mar 26 2015 A highly amplified upper level pattern with a large ridge over the western CONUS and deep trough axis over the MS Vly region will keep the region in a nw flow pattern in the near term. Otherwise will see the long wave trough axis start continue to shift east on Friday with decreasing clouds by afternoon.
HIGH PRESSURE AND WELL ABOVE NORMAL TEMPERATURES ARE EXPECTED THROUGH FRIDAY.
130 PM PDT THU MAR 26 2015 HIGH PRESSURE ALOFT OVER CALIFORNIA WILL BRING ANOTHER UNSEASONABLY WARM DAY FRIDAY.
CONVECTION OVER THE NORTHERN GULF COAST IS LIMITING SHOWER PRODUCTION IN THE VICINITY OF THE COLD FRONT THIS AFTERNOON. SOME CHILLY AIR BUILDING IN BEHIND THE FRONT AND TONS OF MOISTURE IN THE LOW LEVELS SO IT LOOKS LIKE MVFR DETERIORATING TO IFR FLIGHT WEATHER OVERNIGHT WITH SOME IMPROVEMENT ON FRIDAY.
144 PM CDT THU MAR 26 2015 COLD FRONT CONTINUES TO MAKE ITS WAY ACROSS THE REGION THIS AFTERNOON. /ISSUED 1020 AM CDT THU MAR 26 2015/ COLD FRONT CURRENTLY ALONG A LINE FROM EL DORADO TO THE TOLEDO BEND RESERVOIR.
154 AM EDT FRI MAR 20 2015 A BROAD AREA OF LOW PRESSURE WILL MOVE THROUGH KENTUCKY TONIGHT.
637 AM EDT FRI MAR 20 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TODAY. LOW PRESSURE WILL PASS OUT TO SEA SOUTH OF NEW ENGLAND TONIGHT AS A COLD FRONT APPROACHES FROM THE WEST.
LOW PRESSURE WILL BE EXITING THE MID ATLANTIC REGION TODAY. ALLOWING HIGH PRESSURE TO BUILD IN FROM THE WEST. HIGH PRESSURE WILL BE THE MAIN WEATHER FEATURE RIGHT THROUGH THE UPCOMING WEEKEND.
135 AM EDT FRI MAR 20 2015 HIGH PRESSURE OVER LAKE THE EASTERN LAKES WILL MOVE OFF THE NEW ENGLAND COAST OVERNIGHT. ALLOWING A LOW PRESSURE SYSTEM TO MOVE ACROSS THE UPPER OHIO VALLEY FRIDAY. THIS WILL BE FOLLOWED BY A MODIFIED ARCTIC COLD FRONT SATURDAY. HIGH PRESSURE OVER THE EASTERN GREAT LAKES WILL BE RETREATING OVERNIGHT. EARLY EVENING TEMPERATURES ARE NEAR FREEZING JUST DOWNWIND OF THE LAKE. ALL PRECIP SHOULD BE EAST OF THE AREA BY EARLY FRIDAY AFTERNOON AS WEAK HIGH PRESSURE SLIDES INTO THE OHIO VALLEY.
ALOFT THE CUT OFF UPPER LOW PRESSURE WAS OVER THE BAJA.
A WEAK COLD FRONT WILL BRING A SLIGHT CHANCE OF RAIN TO THE NORTH BAY ON FRIDAY NIGHT.