Aikyam-Lab/Synoptic-Bench huggingface dataset:
305 PM CST SUN MAR 1 2015 THE MAIN CHALLENGE WILL BE STRONG COLD FRONT MON NIGHT/TUE. LIGHT SNOW CHANCES SHOULD INCREASE WITH MOISTURE GETTING FOCUSED ALONG THE COLD FRONT BY MORNING.
A STRONG RIDGE REMAINS IN PLACE ALONG 135W AND IT ISN'T GOING ANYWHERE ANYTIME SOON. A STRONG SHORT WAVE WILL MOVE DOWN THE FRONTSIDE OF THE RIDGE TONIGHT INTO MONDAY.
SUNNY SKIES AND SLIGHTLY WARMER TEMPERATURES CAN BE EXPECTED TODAY. AS THE HIGH RES GUIDANCE DOES NOT SO MUCH OUTSIDE OF FALLON COUNTY. THIS WILL QUICKLY GIVE WAY A STRONG ARCTIC COLD FRONT.
336 PM EST SUN MAR 1 2015 HIGH PRESSURE WILL BUILD INTO THE AREA FROM THE NORTH MONDAY PUSHING A COLD FRONTAL BOUNDARY THROUGH THE AREA.
843 AM PST SUN MAR 1 2015 A COLD LOW PRESSURE SYSTEM CENTERED JUST NORTH OF POINT CONCEPTION WILL MOVE VERY SLOWLY SOUTHWARD TODAY.
AS TEMPS FALL TO NEAR FREEZING. A COLD FRONT WILL PUSH INTO THE MID STATE TODAY BRINGING PATCHY LIGHT RAIN AHEAD OF IT, AND FOG, LIGHT RAIN AND LOW CLOUDS BEHIND IT.
MAIN WX FEATURE GOING INTO TODAY AND CARRYING ON INTO THE EVENING HOURS WILL FOCUS AROUND THE CUTOFF UPPER LOW CURRENTLY SITTING JUST OFF THE WEST COAST. 500/700MB RIDGE WILL BUILD INTO THE ROCKIES FROM THE SE DURING THE DAY. MODELS DO SHOW AN INVERTED TROUGH AND EVENTUALLY A SURFACE SYSTEM MOVING ASHORE AND INTO THE SW PORTION OF THE COUNTRY GOING INTO THE EVENING AND OVERNIGHT HOURS. POSITIONING OF THIS SYSTEM OVER COLORADO/UTAH BY 12Z MONDAY WILL HAVE INCREASED CHANCES FOR LIGHT SNOW OVERNIGHT IN EASTERN COLORADO DUE TO THE COMBINATION OF MOISTURE FEED FROM TROUGH/RIDGE. SOUTHERLY GRADIENT/WAA COMBINED WITH DECREASING CLOUD COVER DURING THE DAY WILL ALLOW FOR DAYTIME TO REACH INTO THE LOWER TO MID 30S AND OVERNIGHT LOWS DROPPING TO AROUND 20F. THE NEXT SHORT WAVE TROUGH WILL MOVE ACROSS THE FORECAST AREA BETWEEN 06Z-12Z MONDAY NIGHT.
WITH CURRENT AIR TEMPERATURES IN THE LOWER 80S AND DEWPOINT TEMPERATURES IN THE LOWER 70S. A SPRAWLING HIGH PRESSURE CELL EXTENDS FROM THE NORTH ATLANTIC TO THE BAHAMAS. A LARGE REGION OF HIGH PRESSURE WILL MOVE SWIFTLY OVER THE WESTERN NORTH ATLANTIC THIS EVENING.
ALTHOUGH SOME CUMULUS IS STARTING TO DEVELOP OVER THE RIDGES. A STRONG RIDGE REMAINS IN PLACE ALONG 135W AND IT ISN'T GOING ANYWHERE ANYTIME SOON. A STRONG SHORT WAVE WILL MOVE DOWN THE FRONTSIDE OF THE RIDGE TONIGHT INTO MONDAY.
355 PM CST Sun Mar 1 2015 (Tonight and Tomorrow) Extensive cloud cover continues across all of West Central Texas with most locations in the 30s, except along the Interstate 10 corridor, where temperatures have climbed into the lower 40s. Temperatures across much of the Big Country will already be near to just above freezing, and as temperatures slowly drop to near or below freezing, areas of light freezing rain/freezing drizzle will develop by late evening. Some minor icing of bridges, overpasses and exposed surfaces will be possible, and this is covered in a Special Weather Statement. Temperatures should climb back above freezing at all locations by mid to late morning, with a transition to all liquid precipitation.
257 PM CST SUN MAR 1 2015 LIGHT RAINS CONTINUE TO SWEEP ACROSS THE MID-STATE THIS AFTERNOON AS A WEAK COLD FRONT APPROACHES FROM THE NORTHWEST. THIS COLD FRONT WILL BREAK INTO MIDDLE TENNESSEE OVER THE NEXT COUPLE OF HOURS AND HELP TEMPERATURES START TO FALL OFF. SUB-FREEZING SURFACE TEMPERATURES AND A DEEP ELEVATED WARM LAYER WILL OPEN UP SEVERAL AREAS IN THE MID-STATE FOR SOME FREEZING DRIZZLE. AND WITH THIS AFTERNOON'S TEMPERATURES REACHING THE LOW TO MIDDLE 40S. A GENERALLY WET PATTERN FOR THE NEXT COUPLE OF DAYS CONTINUES MONDAY WITH MORE LIGHT RAIN AS A WARM FRONT LIFTS BACK TO THE NORTH.
350 PM EST SUN MAR 1 2015 SKIES WILL SLOWLY CLEAR INTO TONIGHT AS HIGH PRESSURE BUILDS ACROSS THE REGION.
SCATTERED FLURRIES ARE EXPECTED WITH TROUGH OF LOW PRESSURE MOVING THROUGH REGION LATER THIS AFTERNOON AND EVENING. INTERMITTENT VERY LIGHT SNOW OR FLURRIES IS EXPECTED TO CONTINUE DURING THE DAY AS THE UPPER TROUGH CURRENTLY OVER MT MOVES TO THE UPPER MS RIVER VALLEY BY 00Z MON. THE UPPER TROUGH WILL AID IN DRIVING A COLD FRONT ACROSS SRN WI THIS EVENING. CLOUDS WILL GRADUALLY INCREASE THROUGH THE AFTERNOON AS LOW PRESSURE APPROACHES FROM THE PLAINS.
254 PM EST SUN MAR 1 2015 LOW PRESSURE WILL MOVE EAST AND CROSS THE REGION OVERNIGHT.
POSSIBLY MIXING WITH SOME FREEZING RAIN AND EVENTUALLY SNOW BEFORE TAPERING OFF MONDAY MORNING/EARLY AFTERNOON. EXPECT THE FREEZING RAIN TO OCCUR AS THE RAIN IS SWITCHING OVER TO SNOW. EXPECT TEMPS TO BE SLIGHTLY COOLER IN THE AFTERNOON.
A COLD LOW PRESSURE SYSTEM CENTERED NEAR POINT CONCEPTION WILL DRIFT SOUTHEAST ACROSS SOUTHERN CALIFORNIA THROUGH MONDAY ACCOMPANIED BY SHOWERS.
THE RTMA ANALYSIS SHOWED SOME TEMPS RIGHT AROUND FREEZING BUT SINCE THEN HAVE SEEN SOME SLIGHT WARMING AS WINDS BECOME MORE EASTERLY AS OPPOSED TO NORTHEAST. TROUGH.
SLIGHTLY COOLER TEMPERATURES WILL RETURN TOMORROW.
LATEST STLT TRENDS INDICATE SCT STRATOCU OVER WRN PORTIONS OF THE AREA WHILE HIGH CLOUDS STREAM AROUND AN UPPER LVL RIDGE OVER THE REGION. REGION IS UNDER HIGH PRESSURE RIDGING NORTHWEST FROM THE CENTRAL GULF. ONE MORE DRY DAY IS EXPECTED AS HIGH PRESSURE REMAINS OVER THE AREA.
1124 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF CHILLY AIR TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
1015 PM EDT MON MAR 16 2015 A COLD FRONT WILL BRING THE CHANCE FOR SHOWERS TONIGHT AND TUESDAY MORNING. WITH COOLER CONDITIONS FOR THE REST OF THE WEEK. WARM FRONT HAS PUSHED NORTHWARD WITH WARM ADVECTION ALLOWING FOR TEMPERATURES TO RAISE A DEGREE OR TWO WITHIN THE LAST HOUR. ANTICIPATE THIS WILL START TO FALL OFF AS THE COLD FRONT APPROACHES. HAVE ADJUSTED POPS ACCORDINGLY TO TAKE INTO ACCOUNT THE LULL IN PRECIP UNTIL THE COLD FRONT APPROACHES TUESDAY MORNING PER THE LATEST HI RES AND DETERMINISTIC MODEL DATA. SHOWER CHANCES WILL LINGER LONGEST ALONG THE RIDGES WITH THE HELP OF UPSLOPE IN COLD NW FLOW.
749 PM EDT MON MAR 16 2015 LOW PRESSURE WILL APPROACH FROM THE NORTHWEST TONIGHT AND CROSS THE REGION DURING THE DAY ON TUESDAY. QUIET BUT UNSEASONABLY COLD WEATHER WILL FOLLOW IN THE THE WAKE OF THIS LOW FOR THE REST OF THE WEEK. LOW PRESSURE LOOKS TO PASS JUST TO OUR SOUTH OVER THE WEEKEND. SOME STRENGTHENING AND SHARPENING OF THE LOW IS EXPECTED.
A WEAK TROUGH OF LOW PRES ALOFT WILL APPROACH THE REGION TONIGHT FROM THE SW. A RIDGE OF HIGH PRES IS EXPECTED TO BUILD OVER THE REGION LATER IN THE WEEK FOR A RETURN TO DRY WEATHER.
1141 PM CDT MON MAR 16 2015 LOW PRESSURE WAS MOVING TO THE NORTH OF THE AREA TODAY. THIS LOW PRESSURE WAS HELPING TO USHER IN MOISTURE FROM THE GULF OF MEXICO. AN UPPER LEVEL RIDGE OVER THE CENTRAL UNITED STATES WAS ALLOWING TEMPERATURES TO WARM CLOSE TO RECORD HIGHS. ONCE THIS COLD FRONT MOVES THROUGH. THE MET IS THE LOWEST MODEL GUIDANCE WHILE THERE IS GOOD AGREEMENT BETWEEN THE REST OF THEM. NORTHERN ZONES WILL BE CLOSE TO 5 DEGREES COOLER TONIGHT. NORTHWEST MID-LEVEL FLOW WILL RESULT IN COOLER TEMPERATURES THROUGH THE UPCOMING WEEKEND AS 1000-500MB THICKNESS VALUES REMAIN NEAR OR BELOW 540 DAM AND CYCLONIC FLOW ALOFT PERSISTS.
VFR CONDITIONS WILL PREVAIL AT ALL SITES WHILE A COLD FRONT MOVES ACROSS THE REGION EARLY TUESDAY MORNING. WINDS WILL SUBSIDE AS WE GO INTO THE EVENING AS A PRE-FRONTAL TROUGH APPROACHES. A COLD FRONT IS CURRENTLY PUSHING SOUTH ACROSS NEBRASKA AND NOW INTO NORTHWEST KANSAS. VFR CONDITIONS WILL PREVAIL AT ALL SITES WHILE A COLD FRONT MOVES ACROSS THE REGION OVERNIGHT. A COLD FRONT WILL MOVE INTO NORTHEAST OKLAHOMA BEFORE SUNRISE WITH GUSTY NORTH WINDS. THE UPPER LOW WHICH HAS RESIDED OFF THE WESTERN COAST OF MEXICO FOR SEVERAL DAYS WILL LIFT NORTHWARD INTO THE PLAINS TUESDAY NIGHT WITH A LARGE PLUME OF DEEP MOISTURE STREAMING ATOP THE RECENT FRONTAL SURFACE.
MAIN UPDATE THIS EVENING WAS TO ADJUST THE TIMING OF THE WIND SHIFT/COLD FRONT OVERNIGHT BASED ON THE LATEST HI-RES MODEL DATA. A COLD FRONT WILL ALSO MOVE ACROSS THE AREA TUESDAY MORNING SHIFTING WINDS TOWARDS THE NE. ELEVATED LOW LEVEL WINDS AND INCREASING MID-HIGH CLOUD FROM THE SOUTH WILL KEEP LOW TEMPS FROM DROPPING MUCH (~10 DEGREES ABOVE AVG) TOMORROW AM AHEAD OF A COLD FRONT MOVING INTO NORTHERN OK. THE COLD FRONT WILL THEN QUICKLY MOVE INTO SOUTH CENTRAL OK SHORTLY AFTER LUNCHTIME TOMORROW.
1246 AM EDT TUE MAR 17 2015 HIGH PRESSURE WILL REMAIN CENTERED TO THE SOUTHWEST OVERNIGHT. A COLD FRONT WILL MOVE THROUGH LATE THIS AFTERNOON AND EVENING.
VFR CONDITIONS WILL PREVAIL AT ALL SITES WHILE A COLD FRONT MOVES ACROSS THE REGION OVERNIGHT. A COLD FRONT WILL MOVE INTO NORTHEAST OKLAHOMA BEFORE SUNRISE WITH GUSTY NORTH WINDS. THE UPPER LOW WHICH HAS RESIDED OFF THE WESTERN COAST OF MEXICO FOR SEVERAL DAYS WILL LIFT NORTHWARD INTO THE PLAINS TUESDAY NIGHT WITH A LARGE PLUME OF DEEP MOISTURE STREAMING ATOP THE RECENT FRONTAL SURFACE.
WINDS WILL SUBSIDE AS WE GO INTO THE EVENING AS A PRE-FRONTAL TROUGH APPROACHES. A COLD FRONT IS CURRENTLY PUSHING SOUTH ACROSS NEBRASKA AND NOW INTO NORTHWEST KANSAS. VFR CONDITIONS WILL PREVAIL AT ALL SITES WHILE A COLD FRONT MOVES ACROSS THE REGION OVERNIGHT. A COLD FRONT WILL MOVE INTO NORTHEAST OKLAHOMA BEFORE SUNRISE WITH GUSTY NORTH WINDS. THE UPPER LOW WHICH HAS RESIDED OFF THE WESTERN COAST OF MEXICO FOR SEVERAL DAYS WILL LIFT NORTHWARD INTO THE PLAINS TUESDAY NIGHT WITH A LARGE PLUME OF DEEP MOISTURE STREAMING ATOP THE RECENT FRONTAL SURFACE.
TEMPS WILL FALL OFF RAPIDLY TONIGHT GIVEN THE MOSTLY CLEAR SKIES AND NEAR CALM WINDS WITH LOW LEVEL RIDGING.
UPPER LEVEL RIDGE DEGRADATION ANTICIPATED THRU 17/24Z. /ISSUED 313 PM CDT MON MAR 16 2015/ UPPER RIDGE AXIS IS ORIENTED JUST TO THE WEST OF TN THIS AFTERNOON. THE UPPER RIDGE IS EXPECTED TO FLATTEN OVER THE NEXT 24 HOURS. A COLD FRONT.
OTHER THAN SOME HIGH CLOUDS WHICH ARE CURRENTLY SPILLING OVER THE UPPER RIDGE TO OUR WEST. MIN TEMPS WILL FALL INTO THE LOW TO MID 50S IN MOST AREAS.
HIGH PRESSURE WILL BUILD SOUTHEAST FROM CANADA TONIGHT AND IS PROGGED TO BE OVER THE WESTERN DAKOTAS BY 12 UTC TUESDAY. HIGH PRESSURE WILL BUILD ACROSS THE STATE OVERNIGHT. A QUIET TUESDAY IS FORECAST WITH NOW WEAKENING HIGH PRESSURE IN PLACE ACROSS THE NORTHERN PLAINS. HIGHS ON TUESDAY WHILE BEING MUCH COOLER FROM THE RECENT WARM SPELL WILL STILL BE ABOVE AVERAGE IN THE LOWER TO MID 40S.
THE MAIN FEATURE WILL BE A POTENT COLD FRONT DROPPING SOUTH THROUGH THE REGION ON TUESDAY. WARM AIR ADVECTION WILL PERSIST AHEAD OF THE FRONT AND CONDITIONS WILL BE FAVORABLE FOR RIDGE/VALLEY TEMPERATURE DIFFERENCES TO DEVELOP UNDER MOSTLY CLEAR SKIES THIS EVENING.
High pressure at the surface extends from the Canadian Prairies SE across Eastern MT and the Dakotas while low pressure develops in the Great Basin, allowing easterly surface winds to persists tonight, especially at eastern terminals.
926 PM CDT MON MAR 16 2015 THE STRONG COLD FRONT RACED DOWN THE LAKESHORE WITH GUSTS TO 30 KNOTS AND RAPIDLY FALLING TEMPERATURES. BUT TEMPERATURES WILL ALL EVENTUALLY REACH THE LOWER TO MID 30S. THE COLD FRONT HAS EXITED THE FAR SOUTH THIS EVENING WITH DECENT PUSH OF NNE WINDS ASSOCIATED WITH POST FRONTAL PRESSURE RISES. HIGH PRESSURE WILL WORK INTO IA/MN REGION LATER TUESDAY. MEDIUM UNSEASONABLE WARMTH ACROSS SRN WI WILL BE REPLACED BY MORE NORMAL MID MARCH TEMPERATURES AS A COLD FRONT SWEEPS THROUGH THE AREA THIS EVENING. SURFACE/850 RIDGE AXIS REMAINS TO OUR WEST WHICH ALLOWS FOR PLENTY OF MIXING TO SUSTAIN A COOL NW BREEZE.
A COLD FRONT WILL MOVE THROUGH THE TAF SITES TUESDAY MORNING SHIFTING WINDS. MAIN UPDATE THIS EVENING WAS TO ADJUST THE TIMING OF THE WIND SHIFT/COLD FRONT OVERNIGHT BASED ON THE LATEST HI-RES MODEL DATA. A COLD FRONT WILL ALSO MOVE ACROSS THE AREA TUESDAY MORNING SHIFTING WINDS TOWARDS THE NE. ELEVATED LOW LEVEL WINDS AND INCREASING MID-HIGH CLOUD FROM THE SOUTH WILL KEEP LOW TEMPS FROM DROPPING MUCH (~10 DEGREES ABOVE AVG) TOMORROW AM AHEAD OF A COLD FRONT MOVING INTO NORTHERN OK. THE COLD FRONT WILL THEN QUICKLY MOVE INTO SOUTH CENTRAL OK SHORTLY AFTER LUNCHTIME TOMORROW.
611 PM CDT MON MAR 16 2015 FOR 00Z TAFS /ISSUED 417 PM CDT MON MAR 16 2015/ THE LOWER AND UPPER LEVEL HIGH PRESSURE CONTINUES TO INFLUENCE THE REGION TODAY. A CLOSED UPPER LEVEL LOW REMAINS OVER THE GULF OF CALIFORNIA AS THE UPPER LEVEL RIDGE BLOCKS IT. THIS LOW WILL PROVIDE OUR WEATHER LATER THIS WEEK. TEMPS WILL BE WARM AGAIN TOMORROW BEFORE THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN AND THE COLD FRONT MOVES THROUGH IN THE LATE AFTERNOON. AS THE RIDGE BREAKS DOWN. CLOUD COVER WILL START TO STREAM INTO THE REGION AND THE LOW PRESSURE IN THE GULF OF CALIFORNIA WILL BECOME AN OPEN WAVE IN THE SOUTHERN PLAINS. THE NAM AND GFS WERE A FASTER SOLUTION THAN THE ECMWF ON THE MOVEMENT OF THE LOW ACROSS THE SOUTHEASTERN STATES.
A COLD FRONT WILL ALSO MOVE ACROSS THE AREA TUESDAY MORNING SHIFTING WINDS TOWARDS THE NE. ELEVATED LOW LEVEL WINDS AND INCREASING MID-HIGH CLOUD FROM THE SOUTH WILL KEEP LOW TEMPS FROM DROPPING MUCH (~10 DEGREES ABOVE AVG) TOMORROW AM AHEAD OF A COLD FRONT MOVING INTO NORTHERN OK. THE COLD FRONT WILL THEN QUICKLY MOVE INTO SOUTH CENTRAL OK SHORTLY AFTER LUNCHTIME TOMORROW.
A COLD FRONT WILL PUSH THROUGH THE REGION ON TUESDAY.
1015 PM EDT MON MAR 16 2015 A COLD FRONT WILL PUSH SOUTH THROUGH THE AREA TONIGHT INTO TOMORROW MORNING.
SHOWERS WL BEGIN TO AFFECT THE LRD AREA BY MIDNIGHT AND THEN INCREASE IN COVERAGE AND INTENSITY THROUGH THE MORNING HOURS AS THE MID/UPR CLOSED LOW ACROSS THE SRN BAJA BEGINS TO EJECT NEWD. LOW LEVEL FLOW WILL VEER TO SOUTHEAST LATER TONIGHT AND BRING IN HIGHER MOISTURE OVER THE COOLER SHELF WATERS TO PROVIDE PATCHY FOG OVER THE NEARSHORE WATERS AND BAYS. MID/UPPER LEVEL LOW NEAR THE SOUTHERN TIP OF BAJA CALIFORNIA BEGINNING TO PIVOT TO THE NORTHEAST WITH THE UPPER TROUGH AXIS EXPECTED TO TAKE ON A NEGATIVE TILT AS SYSTEM MOVES NORTHEAST TO THE TEXAS BIG BEND TUESDAY NIGHT. A STRONG JET STREAK OF 90-100 KNOTS ROUNDING THE BASE OF THE UPPER TROUGH WILL MOVE INTO THE BRUSH COUNTRY TUESDAY EVENING.
1225 AM EDT TUE MAR 17 2015 AVIATION A COLD FRONT WILL MOVE THROUGH TONIGHT AND PUT AN END TO THE MILD WEATHER. SOME LIGHT RAIN WILL MOVE IN OVERNIGHT AND COULD END AS FLURRIES AFTER MIDNIGHT THEN MUCH COOLER WEATHER WILL SETTLE IN FOR THE REST OF THE WEEK. ONLY FORECAST ISSUE IN THE NEAR TERM IS TIMING THE PRECIP ALONG THE COLD FRONT OVERNIGHT. FAIR WEATHER IS EXPECTED THROUGH THE REST OF THE PERIOD AS HIGH PRESSURE HOLDS SWAY.
/ISSUED 309 PM EDT MON MAR 16 2015/ A FEW SHOWERS OVER THE INTERIOR AREAS THIS AFTERNOON AS A VERY WEAK CENTER OF LOW PRESSURE DISSIPATES OVER SOUTH FLORIDA. AS THIS LOW FADES AWAY, HIGH PRESSURE WILL BUILD OVER THE CWA. HOWEVER, THERE DOES APPEAR TO BE A WEAK TROUGH THAT MOVES ACROSS SOUTH FLORIDA TOMORROW AS WELL. NOT EXPECTING ANY PRECIPITATION WITH THIS TROUGH, BUT CLOUD COVER WILL INCREASE AND THERE COULD BE A FEW SPRINKLES, POSSIBLY NEAR THE HOMESTEAD AREA. LOOKING AT THE MODELS, IT APPEARS THAT THE LOW DEVELOPS EACH DAY FOR THE NEXT FEW DAYS, SO IT IS MORE LIKELY A THERMAL LOW FORMING OVER THE INTERIOR.
842 PM EDT MON MAR 16 2015 A SHARP CHANGE TO MUCH COLD WEATHER IS IN STORE LATE TONIGHT INTO TUESDAY BEHIND A STRONG COLD FRONT. 18Z SFC ANALYSIS SHOWED COLD FRONT EXTENDING FROM THE NORTHERN GREAT LAKES BACK THROUGH NEBRASKA WITH WEAK FRONTAL WAVE IN SE MINNESOTA.
A sfc cold front that extends from the Great Lakes into Neb will continue to move south into the cwfa late tonight. Cold front to sweep through the remainder of the CWA early Tuesday.
LOW LEVEL RIDGE AXIS CURRENTLY ACROSS NORTH FL WILL CONTINUE TO PRESS SOUTH ACROSS CENTRAL FL OVERNIGHT AND REACH SOUTH FL BY MORNING. EVEN CALM AT TIMES DUE TO RIDGE AXIS OVERHEAD. LOWS GENERALLY IN THE LOWER 60S. (MODIFIED) THE LOW LEVEL RIDGE AXIS WILL BE SOUTH OF THE AREA AND THE INCREASING OFFSHORE (WEST) FLOW WILL DELAY SEA BREEZE DEVELOPMENT. HIGH PRESSURE RIDGE AXIS EXTENDING FROM GULF ACROSS NORTH FLORIDA WILL SLIDE SOUTH INTO THE REGION THIS EVENING AND THEN INTO SOUTH FLORIDA OVERNIGHT AS ANOTHER BACK DOOR FRONT APPROACHES LATE IN THE DAY ON TUESDAY.
736 PM EDT MON MAR 16 2015 A COLD FRONT WILL BRING THE CHANCE FOR SHOWERS TONIGHT AND TUESDAY MORNING. WITH COOLER CONDITIONS FOR THE REST OF THE WEEK. A FEW SPRINKLES HAVE MATERIALIZED ALONG AND JUST BEHIND A WARM FRONT LIFTING NORTHWARD TOWARD NEW YORK. A LULL IN THE PRECIP SHOULD OCCUR UNTIL THE COLD FRONT APPROACHES TUESDAY MORNING.
855 PM PDT MON MAR 16 2015 AN UPPER LEVEL LOW PRESSURE SYSTEM WILL BRING COOLING TEMPERATURES AND INCREASING CLOUDS TO THE REGION THROUGH MID WEEK.
CHATTANOOGA AIRPORT, TN 51 73 46 62 / 0 10 10 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 50 69 40 60 / 0 20 10 10 OAK RIDGE, TN 49 69 39 59 / 0 20 10 10 TRI CITIES AIRPORT, TN 45 67 34 55 / 0 30 10 10.
1040 PM CDT MON MAR 16 2015 HAVE INCREASED WIND SPEEDS IN THE GRIDS BEHIND THE COLD FRONT BASED ON UPSTREAM OBSERVATIONS. A STRONG COLD FRONT WILL MOVE RAPIDLY SOUTH ACROSS THE TERMINAL SITES THIS EVENING AND TONIGHT. /ISSUED 401 PM CDT MON MAR 16 2015/ HIGH CLOUDS STREAMING ACROSS THE PANHANDLES THIS AFTERNOON FROM AN UPPER LEVEL LOW OVER MEXICO. HIGH TEMPERATURES ARE IN THE LOW 70S TO UPPER 80S ACROSS THE PANHANDLES WITH GUSTY SOUTHWEST WINDS. A COLD FRONT WILL CROSS THE PANHANDLES TONIGHT AND EARLY TUESDAY MORNING. THE DRY CONDITIONS OF LATE WILL GIVE WAY TO SEVERAL CHANCES FOR PRECIPITATION THROUGHOUT THE WEEK AS THE UPPER LEVEL LOW MOVES EASTWARD AND VARIOUS DISTURBANCES IN THE UPPER LEVEL FLOW CROSS THE AREA.
A WEAK TROUGH WILL MOVE THROUGH TO THE NORTHWEST OF THE AREA TONIGHT. AND THIS IS CAUSING THE REMNANTS OF THE FRONT TO MOVE BACK NORTH AS A WARM FRONT. THE ASSOCIATED COLD FRONT WILL PUSH ONSHORE TUESDAY.
638 PM CDT MON MAR 16 2015 LOW PRESSURE WAS MOVING TO THE NORTH OF THE AREA TODAY. THIS LOW PRESSURE WAS HELPING TO USHER IN MOISTURE FROM THE GULF OF MEXICO. AN UPPER LEVEL RIDGE OVER THE CENTRAL UNITED STATES WAS ALLOWING TEMPERATURES TO WARM CLOSE TO RECORD HIGHS. ONCE THIS COLD FRONT MOVES THROUGH. THE MET IS THE LOWEST MODEL GUIDANCE WHILE THERE IS GOOD AGREEMENT BETWEEN THE REST OF THEM. NORTHERN ZONES WILL BE CLOSE TO 5 DEGREES COOLER TONIGHT. NORTHWEST MID-LEVEL FLOW WILL RESULT IN COOLER TEMPERATURES THROUGH THE UPCOMING WEEKEND AS 1000-500MB THICKNESS VALUES REMAIN NEAR OR BELOW 540 DAM AND CYCLONIC FLOW ALOFT PERSISTS.
716 PM EDT MON MAR 16 2015 RETURN FLOW AROUND A DEPARTING HIGH AND A COLD FRONT DROPPING SOUTHEAST TO THE GREAT LAKES BROUGHT ABOVE NORMAL TEMPERATURES TODAY. THE COLD FRONT WILL PUSH SOUTH THROUGH THE AREA TONIGHT INTO TOMORROW MORNING.
930 PM EDT MON MAR 16 2015 A COLD FRONT WILL APPROACH FROM THE NORTH TONIGHT BEFORE PASSING THROUGH THE AREA TUESDAY MORNING AND MIDDAY.
INCREASING MOISTURE HAS ALREADY STARTED TO OVERSPREAD MUCH OF THE LOWER MS VALLEY EWD. 09 /ISSUED 417 PM CDT MON MAR 16 2015/ THE LOWER AND UPPER LEVEL HIGH PRESSURE CONTINUES TO INFLUENCE THE REGION TODAY. A CLOSED UPPER LEVEL LOW REMAINS OVER THE GULF OF CALIFORNIA AS THE UPPER LEVEL RIDGE BLOCKS IT. THIS LOW WILL PROVIDE OUR WEATHER LATER THIS WEEK. TEMPS WILL BE WARM AGAIN TOMORROW BEFORE THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN AND THE COLD FRONT MOVES THROUGH IN THE LATE AFTERNOON. AS THE RIDGE BREAKS DOWN. CLOUD COVER WILL START TO STREAM INTO THE REGION AND THE LOW PRESSURE IN THE GULF OF CALIFORNIA WILL BECOME AN OPEN WAVE IN THE SOUTHERN PLAINS. THE NAM AND GFS WERE A FASTER SOLUTION THAN THE ECMWF ON THE MOVEMENT OF THE LOW ACROSS THE SOUTHEASTERN STATES.
/ISSUED 318 PM CDT MON MAR 16 2015/ HIGH PRESSURE AT THE SURFACE EXTENDS FROM THE BAHAMAS TO NEAR LAKE CHARLES. THE UPPER RIDGE IS CENTERED JUST SOUTH OF LOUISIANA WITH AN UPPER LOW REMAINING PARKED NEAR THE SOUTHERN TIP OF BAJA CALIFORNIA. TEMPERATURES THIS AFTERNOON HAVE WARMED INTO THE LOWER 80S IN AREAS NOT AFFECTED BY LAKE/SEA BREEZES.
CHATTANOOGA AIRPORT, TN 51 73 46 62 / 0 10 10 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 49 69 40 60 / 0 20 10 10 OAK RIDGE, TN 49 69 39 59 / 0 20 10 10 TRI CITIES AIRPORT, TN 45 67 34 55 / 0 30 10 10.
1158 PM EDT MON MAR 16 2015 LOW PRESSURE WILL APPROACH FROM THE NORTHWEST TONIGHT AND CROSS THE REGION DURING THE DAY ON TUESDAY. QUIET BUT UNSEASONABLY COLD WEATHER WILL FOLLOW IN THE THE WAKE OF THIS LOW FOR THE REST OF THE WEEK. LOW PRESSURE LOOKS TO PASS JUST TO OUR SOUTH OVER THE WEEKEND. AFTER A SHORT PERIOD SHOULD SEE WARMER AIR MIX DOWN TO THE SFC. AND RAISE SF TEMPS ABV FREEZING. SOME STRENGTHENING AND SHARPENING OF THE LOW IS EXPECTED.
1035 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF CHILLY AIR TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
/ISSUED 304 PM EDT MON MAR 16 2015/ NORTHWEST UPPER FLOW ON THE DOWNHILL SIDE OF THE GULF OF MEXICO UPPER RIDGE FLATTENS THROUGH THE PERIOD AS THE RIDGE WEAKENS. WEAK COLD FRONT PUSHES THROUGH ON TUESDAY.
521 PM MDT MON MAR 16 2015 EARLY AFTERNOON WV IMAGERY AND RAP H5 ANALYSIS SHOW RIDGE IN PLACE ACROSS THE SOUTHERN/CENTRAL PLAINS WITH WESTERLY FLOW ACROSS THE NORTHERN PLAINS. IS STRONG WINDS THAT WILL DEVELOP BEHIND COLD FRONT. WINDS SHOULD BE ON A DECREASING TREND AS HIGH PRESSURE BUILDS INTO THE PLAINS EARLY TUESDAY MORNING.
MILD CONDITIONS WILL CONTINUE THROUGH THE NIGHT ACROSS MID TN WITH EXPECTED COLD FRONT NOT ARRIVING UNTIL DAYLIGHT TUESDAY. UPPER LEVEL RIDGE DEGRADATION ANTICIPATED THRU 17/24Z. /ISSUED 313 PM CDT MON MAR 16 2015/ UPPER RIDGE AXIS IS ORIENTED JUST TO THE WEST OF TN THIS AFTERNOON. THE UPPER RIDGE IS EXPECTED TO FLATTEN OVER THE NEXT 24 HOURS. A COLD FRONT.
1042 PM EDT MON MAR 16 2015 LOW PRESSURE WILL APPROACH FROM THE WEST OVERNIGHT.
711 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF CHILLY AIR TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
930 PM EDT MON MAR 16 2015 CLEAR SKIES ARE OVER THE AREA UNDER HIGH PRESSURE TO THE WEST WITH THE SEA BREEZE WANING.
641 PM CDT Mon Mar 16 2015 A sfc cold front that extends from the Great Lakes into Neb will continue to move south into the cwfa late tonight. Cold front to sweep through the remainder of the CWA early Tuesday.
UPPER LEVEL RIDGE DEGRADATION ANTICIPATED THRU 18/06Z. MILD CONDITIONS WILL CONTINUE THROUGH THE NIGHT ACROSS MID TN WITH EXPECTED COLD FRONT NOT ARRIVING UNTIL DAYLIGHT TUESDAY. UPPER LEVEL RIDGE DEGRADATION ANTICIPATED THRU 17/24Z. /ISSUED 313 PM CDT MON MAR 16 2015/ UPPER RIDGE AXIS IS ORIENTED JUST TO THE WEST OF TN THIS AFTERNOON. THE UPPER RIDGE IS EXPECTED TO FLATTEN OVER THE NEXT 24 HOURS. A COLD FRONT.
Tomorrow will have a cold front blow into the area before noon and pass through most TAF sites during the afternoon. But expect it to lurch northeastward tonight as another ua trough moves ashore over SoCal, then translate northeastward over, or just south of, the forecast area Tuesday night. The front is expected to move south to near the higher terrain by Tuesday afternoon. Mid and upper level subtropical moisture spreading north ahead of the ua trough will combine with low level moisture spreading northwestward from the Gulf of Mexico to put PWats above 1" over the eastern half of the forecast area. Heavy rainfall could be a problem, especially Tuesday afternoon over southwest Texas, then shifting northeastward over the Permian Basin Tuesday night within the deformation zone to the north and west of the ua trough.
A STRONG COLD FRONT WILL MOVE RAPIDLY SOUTH ACROSS THE TERMINAL SITES THIS EVENING AND TONIGHT. /ISSUED 401 PM CDT MON MAR 16 2015/ HIGH CLOUDS STREAMING ACROSS THE PANHANDLES THIS AFTERNOON FROM AN UPPER LEVEL LOW OVER MEXICO. HIGH TEMPERATURES ARE IN THE LOW 70S TO UPPER 80S ACROSS THE PANHANDLES WITH GUSTY SOUTHWEST WINDS. A COLD FRONT WILL CROSS THE PANHANDLES TONIGHT AND EARLY TUESDAY MORNING. THE DRY CONDITIONS OF LATE WILL GIVE WAY TO SEVERAL CHANCES FOR PRECIPITATION THROUGHOUT THE WEEK AS THE UPPER LEVEL LOW MOVES EASTWARD AND VARIOUS DISTURBANCES IN THE UPPER LEVEL FLOW CROSS THE AREA.
830 PM EDT MON MAR 16 2015 MILD CONDITIONS WILL LAST THROUGH EARLY TUESDAY BEFORE A COLD FRONT BRINGS A RETURN OF CHILLY AIR TO THE REGION LATER TUESDAY AND TUESDAY NIGHT.
DEEP CLOSED UPPER LOW CONTINUES TO SPIN ACROSS THE BAJA REGION OF OLD MEXICO THIS EVENING.