Aikyam-Lab/Synoptic-Bench huggingface dataset:
938 AM MST FRI MAR 4 2016 A WEAK TROUGH AND SURFACE FRONT WILL CONTINUE MOVING THROUGH NW CO AND NE UT TODAY AND BRING A BANK OF MID AND HIGH LEVEL CLOUDS TO THE AREA. WARM AND DRY CONDITIONS WILL PREVAIL THROUGHOUT THE SHORT TERM PERIOD AS A LOW AMPLITUDE HIGH PRESSURE RIDGE PASSES OVER THE CENTRAL ROCKIES. DUE TO THE /DIRTY/ NATURE OF THE RIDGE. THIS WAVE MAY ALSO PRODUCE A FEW LIGHT SHOWERS OVER THE HIGHER MOUNTAINS DURING THE AFTERNOON. THE MORE INTERESTING WEATHER FEATURE WILL BE IN THE FORM OF A SIGNIFICANT PACIFIC LOW PRESSURE SYSTEM. FLOW ACROSS THE REGION VEERS TO THE SOUTHWEST ON SATURDAY NIGHT AHEAD OF A SHORT WAVE TROUGH EJECTED FROM THE DEEPER SYSTEM OFF THE WEST COAST.
1105 AM EST FRI MAR 4 2016 ARCTIC HIGH PRESSURE WILL CREST OVER THE AREA LATE TONIGHT INTO FRIDAY. LOW PRESSURE MOVING OFF THE MID ATLANTIC STATES WILL PASS WELL SOUTH OF THE AREA FRIDAY INTO FRIDAY NIGHT. TEMPS SHOULD RECOVER TO AFTN HIGHS ABOUT 10 DEG WARMER THAN YSTDY WITH NRN PTNS OF THE FA REMAINING MCLR. CLDS WILL BEGIN TO DECREASE ACROSS E CNTRL AND DOWNEAST PTNS OF THE FA LATE TNGT AS THE LOW TRACKS TO S OF ERN NOVA SCOTIA. WHATS LEFT OF THE SFC HI WILL CONT RIDGING ACROSS THE N TNGT ALLOWING ONE MORE NGT OF RADIATIONAL COOLING AND LOW TEMPS WELL BELOW ZERO OVR BROAD VLY AREAS. HIGH PRESSURE DOMINATES WITH SLOWLY MODERATING TEMPERATURES.
940 AM PST FRI MAR 4 2016 High pressure over the region will result in one dry day today.
1140 AM CST FRI MAR 4 2016 A cool and quiet night is underway early this morning, with high pressure moving through the mid Mississippi Valley.
A COLD FRONT OVER THE LAKE OKEECHOBEE REGION WILL CONTINUE TO MOVE SOUTHWARD THROUGH SOUTH FLORIDA THIS AFTERNOON AND STALL OVER THE FLORIDA KEYS TONIGHT INTO SATURDAY. AS HIGH PRESSURE MOVES QUICKLY EAST ACROSS THE SOUTHEASTERN UNITED STATES. A LOW PRESSURE SYSTEM WILL ALSO MOVE SOUTHEAST FROM CENTRAL CANADA THROUGH THE GREAT LAKES AND INTO THE MID ATLANTIC STATES THIS WEEKEND.
1057 AM CST FRI MAR 4 2016 HIGH PRESSURE BRINGING VFR SKC AND LGT WINDS TO AREA.
DRY, STABLE CONDITIONS FROM HIGH PRESSURE RIDGING MOVING ACROSS THE STATE WILL KEEP SKIES MOSTLY CLEAR TODAY.
LOW TEMPERATURES WILL COOL TO THE LOWER 40S INLAND WITH MID/UPPER 40S CLOSER TO THE COAST. LOW AMPLITUDE TROUGHING ALOFT WITH CONTINUED LOW LEVEL DRYING WILL RESULT IN DRY CONDITIONS UNDER MOSTLY SUNNY TO PARTLY CLOUDY SKIES. A WEAK INVERTED TROUGH MAY DEVELOP OFFSHORE. HIGHS IN THE MID/UPPER 60S COAST TO THE LOWER/MID 70S INLAND WILL PREVAIL.
MAINLY CLEAR SKIES WILL CONTINUE AS A HIGH PRESSURE RIDGE SLOWLY EXITS THE AREA TO THE EAST.
256 PM CST FRI MAR 4 2016 CLOUDS HAVE STUCK AROUND A BIT LONGER TODAY IN THE WAKE OF YESTERDAYS TROUGH. NORTHWEST FLOW ALOFT HAS HELPED KEEP THE CLOUDS AROUND AS WELL BEHIND THE LOW.
646 AM EDT SUN JUN 14 2015 A PROLONGED HEAT WAVE WILL CONTINUE THROUGH MID-WEEK AS AN UPPER RIDGE REMAINS ANCHORED OVER THE SOUTHEAST STATES WITH A THERMAL TROUGH OF LOW PRESSURE ACROSS THE PIEDMONT OF NORTH CAROLINA.
IF THE 4 KM NAM IS CORRECT, THEN A SECOND AREA OF STORMS MAY DEVELOP THROUGH THE OVERNIGHT IN ASSOCIATION WITH THE LOW LEVEL JET. AGAIN, DON'T HAVE THE HIGHEST CONFIDENCE IN ANY OF THE MODELS AND BROAD BRUSHED THE POPS. ADDITIONAL STORMS ARE POSSIBLE SUNDAY AFTERNOON AS A WEAK UPPER LOW MOVES ACROSS WESTERN KANSAS WITH STEEPENING MID LEVEL LAPSE RATES, FAIRLY LOW CAPE, AND PRACTICALLY NO CAP. TEMPERATURES WILL BOTTOM OUT IN THE 60S TONIGHT AND MAX OUT IN THE LOW TO MID 80S FOR TOMORROW.
WE WILL SEE A GRADUAL WEAKENING OF THE CYCLONIC FLOW THROUGH THE DAY AS LOW- AMPLITUDE RIDGING WORKS ITS WAY INTO THE COASTAL REGIONS TONIGHT AND INTO IDAHO BY MONDAY MORNING.
HIGHS WILL BE IN THE LOW TO MID 80S. ISOLATED DAMAGING WIND GUSTS MAY BE POSSIBLE IN THE STRONGER STORMS BUT THREAT IS ON THE LOWER END OF THE SPECTRUM.
SHRA/TSRA SHOULD REDEVELOP LATE SUNDAY MORNING ACROSS THE HIGH TERRAIN AND LATER IN THE AFTN ACROSS THE EASTERN PLAINS.
WINDS ALOFT HAVE DECREASED SOME SINCE YDAY AS RIDGE HAS BUILT NNW FROM THE SERN CONUS. ANOTHER SHRTWV OVER THE SRN PLAINS EXPECTED TO LIFT NE INTO THE WRN GRTLKS REGION TONIGHT AND THEN EAST OVER THE TOP OF THE SERN CONUS RIDGE ON SUNDAY.
312 AM EDT SUN JUN 14 2015 A PROLONGED HEAT WAVE WILL CONTINUE THROUGH MID-WEEK AS AN UPPER RIDGE REMAINS ANCHORED OVER THE SOUTHEAST STATES WITH A THERMAL TROUGH OF LOW PRESSURE ACROSS THE PIEDMONT OF NORTH CAROLINA.
319 AM MDT SUN JUN 14 2015 COLORADO REMAINS UNDER WEAK LOW PRESSURE ALOFT WITH VERY WEAK FLOW ALOFT. MODELS SHOWING SOME OF THIS DRYING WITH LACK OF QPF BY LATE AFTERNOON WITH FOCUS AREAS OF THE HIGHER FOOTHILLS AND FURTHER EAST ALONG A LINE FROM LIMON THRU JULESBURG. WILL ADJUST GRIDS A BIT TO SHOW THIS HIGHER PROBABILITY OF STORMS THERE. SURFACE COLD FRONT WILL MOVE SOUTHWARD OVER THE PLAINS BETWEEN 06-12Z WITH STRATUS AND SHOWERS DEVELOPING ALONG AND BEHIND THE FRONT. UPPER LEVEL ZONAL FLOW DOMINATES NORTHERN PORTIONS OF THE CONUS WITH A TROUGH DIPPING SOUTH. A BACK DOOR COLD FRONT WILL MOVE INTO EASTERN COLORADO MONDAY MORNING INCREASING FAVORABLE UPSLOPE FLOW ALONG THE FOOTHILLS.
A FEW SHOWERS/WEAK STORMS HAVE DEVELOPED OFF THE HIGHER TERRAIN OF THE BLACK HILLS THIS AFTERNOON. A WEAK COLD FRONT BISECTS THE FORECAST AREA. SURFACE COLD FRONT WILL STALL OUT ACROSS THE SOUTH DAKOTA PLAINS THIS EVENING. THE SURFACE COLD FRONT SHOULD SHIFT SLOWLY EAST OVER SOUTH CENTRAL SD INTO WESTERN NEB.
423 AM EDT SUN JUN 14 2015 HIGH PRESSURE OFF THE SOUTHEAST COAST OF THE U. LG SCALE FORCING IS WEAK EARLY THIS MORNING BENEATH UPPER RIDGING. CENTRAL PA REMAINS ON NORTHERN PERIPHERY OF SUBTROPICAL RIDGE MONDAY. A LITTLE BETTER DIRECTIONAL SHEAR WITH WEAK SHORT WAVE DROPPING SE THROUGH THE RIDGE LATE SUNDAY.
400 AM EDT SUN JUN 14 2015 A WARM FRONT WILL MOVE NORTH OF THE AREA ACROSS LAKE ERIE TODAY.
SHOWERS AND FOG WILL CONTINUE OVER MUCH OF THE SRN AND ERN CWA THIS MORNING ENDING BY LATE MORNING AS LOW PRESSURE MOVES AWAY.
Instability will also be good with a band of ML CAPE values over 2000 j/kg along the NM/TX border southward towards the Lower Trans Pecos. Expect the wet pattern to continue over the next few days with the weak upper level trough continuing its slow progression east. The high moisture will continue and the potential for localized flash flooding caused by heavy rainfall will be possible tomorrow and Monday. A weak ridge tries to build from the west by mid week, which could cut precip chances down a little.
/ISSUED 300 PM EDT SAT JUN 13 2015/ LARGE AREA OF CLOUDS/THUNDERSTORMS ASSOCIATED WITH THE BROAD LOW PRESSURE OVER THE YUCATAN PENINSULA IS FORECAST TO MOVE NORTHWEST INTO THE GULF OF MEXICO THROUGH THE EARLY PART OF THE UPCOMING WEEK, WHILE AT THE SAME TIME STRONG HIGH PRESSURE SFC AND ALOFT SETS UP OVER THE SOUTHEASTERN UNITED STATES AND WESTERN ATLANTIC.
A WEAK TROUGH ALOFT AND DEEPER MOISTURE (APPROXIMATELY 0. DRIER AIR WILL FINALLY MOVE IN FROM THE WEST AS A FLAT RIDGE OF HIGH PRESSURE EXPANDS ACROSS THE DESERT SOUTHWEST INTO TX.
UPPER LEVEL RIDGE WILL BE IN PLACE FOR THE SHORT TERM PERIOD.
WE/LL CONTINUE TO INCREASE COVERAGE IN THE COMING DAYS AS A WEAK UPPER TROUGH SITS OVER THE PLAINS AND COPIOUS AMOUNTS OF TROPICAL MOISTURE SURGES INLAND OVER THE TX COASTAL BEND WITH A HIGH CHANCE FOR A CYCLONE IN THE GULF. ROTATING N AROUND THE DIRTY UPPER RIDGE ANCHORED OVER THE SE CONUS.
354 AM EDT SUN JUN 14 2015 HIGH PRESSURE WILL BUILD DOWN FROM QUEBEC TODAY. THIS HIGH WILL MOVE EAST OF THE REGION TONIGHT INTO MONDAY.
SOME WARMING IS ANTICIPATED TOWARD MIDWEEK WITH HIGH PRESSURE STRENGTHENING ALONG THE COAST.
348 AM EDT SUN JUN 14 2015 A WEAK FRONTAL BOUNDARY IS SLOWLY SINKING AND WILL STALL OUT NEAR NEAR THE POTOMAC RIVER TODAY BEFORE MOVING TO THE NORTHEAST MONDAY NIGHT AS A LOW PRESSURE SYSTEM PASSES BY TO THE NORTH.
HIGH TEMPERATURES WILL CONTINUE TO BE IN THE 90S FOR THE LOWER ELEVATIONS WITH 70S AND 80S IN THE SIERRA, WITH A SLIGHT COOL DOWN BY THE END OF THE WEEK. A FLAT RIDGE WILL BRING TEMPERATURES ABOUT 10 DEGREES ABOVE NORMAL -- 90S IN THE LOWER ELEVATIONS AND 70S AND 80S IN THE SIERRA.
HIGH PRESSURE AT THE SFC IS SUPPORTED BY AN UPPER LEVEL HIGH.
SKIES ARE PARTLY TO MOSTLY CLOUDY WITH TEMPERATURES GENERALLY IN THE LOWER 80S ALONG WITH EAST TO SOUTHEAST WINDS RANGING BETWEEN 15 AND 20 MPH. A WESTERN ATLANTIC RIDGE IS LOCKED IN ACROSS THE CENTRAL PORTION OF THE FLORIDA PENINSULA. WHILE A BROAD AREA OF LOW PRESSURE IS LOCATED ON THE NORTHERN PORTION OF THE YUCATAN PENINSULA.
SHORT TERM (TODAY THROUGH MONDAY NIGHT) PRIOR TO DAWN THE REGION WAS UNDER THE INFLUENCE OF THE UPPER RIDGE CENTERED OFF THE SOUTH CAROLINA COAST. 5 WAS NOTED IN THE EAST UNDER THE STRONGER INFLUENCE OF THE UPPER RIDGE. EXPECT THE BEST CHANCE OF RAIN TO BE ACROSS THE WEST AND THE LOWEST POPS IN THE EAST WHERE THE RIDGE INFLUENCE WILL BE THE BEST. MODELS SHOWS THAT THE MEAN RIDGE FROM THE EAST WILL HAVE A STRONGER INFLUENCE ACROSS THE REGION ON MONDAY. THIS WILL BE REFLECTED BY THE LOWER POPS ACROSS THE NORTHEAST HALF OF THE REGION. TEMPS WILL BE GENERALLY SEASONAL WITH HIGHS AROUND 90 AND LOWS IN THE LOWER 70S.
MINOR COOLING WAS NOTED ELSEWHERE EXCEPT IN THE NRN SJV AND EWD INTO THE SIERRA WHERE TEMPS WERE CLOSE TO PERSISTENCE OR JUST A TAD WARMER THAN FRI.
435 AM EDT SUN JUN 14 2015 A WEAK COLD FRONT WILL STALL ACROSS THE REGION TODAY.
The exiting low pressure system will keep northwesterly flow over the region today with a few showers and thunderstorms lingering across northwest Montana. Monday appears to be dry as a subtle ridge of high pressure moves over the region.
1229 AM CDT SUN JUN 14 2015 FOR 06Z TAFS /ISSUED 1019 PM CDT SAT JUN 13 2015/ ISOLATED SHRA/TSRA CONTINUES TO DISSIPATE THIS EVENING AS HIGH PRESSURE BUILDS ACROSS THE TN VALLEY. HIGH PRESSURE WILL CONTINUE TO BUILD WESTWARD ACROSS THE TN VALLEY OVERNIGHT AND INTO SUNDAY.
409 AM EDT SUN JUN 14 2015 HIGH PRESSURE MOVES OFFSHORE TODAY. A WARM FRONT LIFTS INTO THE AREA TONIGHT INTO MONDAY.
138 AM EDT SUN JUN 14 2015 HIGH PRESSURE MOVES OFFSHORE TODAY. A WARM FRONT LIFTS INTO THE AREA TONIGHT INTO MONDAY.
UNSETTLED WEATHER WILL PERSIST THROUGH MIDWEEK AS AN UPPER-LEVEL RIDGE OF HIGH PRESSURE REMAINS ANCHORED OVER THE SOUTHEAST CONUS AND DEEP-LAYER GULF MOISTURE CONTINUES TO BE TRANSPORTED NORTHWARD AROUND THE HIGH INTO THE MIDWEST.
DELTA BREEZE WILL KEEP TYPICAL INFLUENCED AREAS COOLER THAN SURROUNDING LOCATIONS.
125 AM EDT SUN JUN 14 2015 HIGH PRESSURE WILL BUILD DOWN FROM THE NORTHWEST ACROSS THE REGION THROUGH SUNDAY.
421 AM EDT SUN JUN 14 2015 ATLANTIC HIGH PRESSURE WILL PERSIST INTO MID WEEK. AS AN INLAND TROUGH OF LOW PRESSURE REMAINS IN PLACE THROUGH LATE WEEK. MAINLY CLEAR SKIES EARLY THIS MORNING UNDER STRONG DEEP LAYERED RIDGING. TEMPS AND DEW POINTS BOTH IN THE LOWER TO MID 70S. THE STRONG RIDGE OVERHEAD ENHANCING MID LEVEL WARMTH/SUBSIDENCE ALONG WITH POOR LAPSE RATES ONCE AGAIN.
314 AM CDT Sun Jun 14 2015 08Z water vapor imagery continues to show a disorganized area of mid level low pressure from the southern Rockies through the central plains. For highs today, models have slightly warmer temps at 925 MB and 850 MB. Because of this have highs a degree or two warmer than yesterday's expecting most areas to warm into the lower 80s.
MID LEVEL ANTICYCLONE CENTERED JUST TO OUR NORTH WILL PRODUCE SUBSIDENCE AND CONFINE MOISTURE TO A SHALLOW LAYER.
139 AM EDT SUN JUN 14 2015 HIGH PRESSURE ALONG THE SOUTHEAST ATLANTIC COAST WILL GRADUALLY STRENGTHEN THROUGH SUNDAY. SFC COLD FRONT EXTENDS E-W ALONG THE MASON-DIXON INTO THE OHIO VALLEY. HIGH PRESSURE WAS CENTERED OVER GEORGIA AND THE SOUTHEAST ATLANTIC COAST.
UPPER LEVEL JET CORE WILL PROGRESSIVELY MOVE THE UPPER LOW OVER NORTHERN MANITOBA EASTWARD BY MONDAY. THIS WILL STABILIZE THE ATMOSPHERE AND HELP BRING IN A COOLER AIR MASS. MAINLY IN THE HIGHER TERRAIN. MONDAY LOOKS DRY AS AN UPPER LEVEL RIDGE ATTEMPTS TO BUILD OVER THE NORTHERN ROCKIES.
COULD ALSO SEE SOME DEVELOPMENT ALONG THE PINE RIDGE WHERE SATELLITE IMAGERY SHOWS ANOTHER AREA OF PERSISTENT CU/TOWER CU WITHIN AN AREA OF CONVERGENCE ASSOCIATED WITH THE SFC FRONT AND ELEVATED TERRAIN. A STRONGER COLD FRONT WILL PUSH SOUTH ACROSS THE CWA LATER SUNDAY AFTERNOON. INSTABILITY VALUES WILL INCREASE WITH HEATING OF THE DAY LIKELY BACK INTO THE 500 TO 1500 J/K RANGE WITH THUNDERSTORMS INITIATING OFF THE COLD FRONT. AND ESPECIALLY AS THE COLD FRONT BACKS UP AGAINST THE MOUNTAINS IN THE LATE AFTERNOON AND EVENING.
412 AM CDT SUN JUN 14 2015 SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS EXPECTED AGAIN TODAY AS AMPLE MOISTURE CONTINUES TO STREAM INTO AREA AROUND PERIPHERY OF SURFACE AND MID/UPPER LEVEL RIDGING. MAIN PLAYER IN THE EVENTUAL TRACK OF THIS SYSTEM WILL BE STRENGTH AND WESTWARD EXTENT OF MID/UPPER LEVEL RIDGE OVER THE SOUTHEAST CONUS. 00Z MODELS INDICATE THE RIDGE WILL BUILD WESTWARD TOWARD NORTH CENTRAL GULF COAST BY MONDAY.
TEMPERATURES A BIT WARMER ON SUN AND MON. WEAK UPPER RIDGING COUPLED WITH THE WEAKER ONSHORE FLOW WILL RESULT IN WARMER TEMPS TODAY. THIS SHOULD RESULT IN SOME MARINE CLOUDS PUSHING INTO THE COAST RANGE MON MORNING AND POTENTIALLY THROUGH THE LOWER GAPS IN THE CENTRAL OREGON COAST RANGE.
230 AM EDT SUN JUN 14 2015 HIGH PRESSURE OFF THE SOUTHEAST COAST OF THE U. LG SCALE FORCING IS WEAK EARLY THIS MORNING BENEATH UPPER RIDGING. CENTRAL PA REMAINS ON NORTHERN PERIPHERY OF SUBTROPICAL RIDGE MONDAY. A LITTLE BETTER DIRECTIONAL SHEAR WITH WEAK SHORT WAVE DROPPING SE THROUGH THE RIDGE LATE SUNDAY.
156 AM EDT SUN JUN 14 2015 A WARM FRONT WILL PUSH NORTHEAST INTO OUR AREA SUNDAY AFTERNOON AND EVENING AND THEN DROP BACK SOUTH OF THE REGION BY MONDAY AS A COLD FRONT. WEAK HIGH PRESSURE WILL CONTINUE OVER THE REGION INTO THE OVERNIGHT HOURS. A WARM FRONT AND ASSTD UPPER LEVEL WAVE SEEN ON THE WATER VAPOR IMAGERY OVER OHIO TRACKS E-NE. THIS FIRST WARM FRONTAL WAVE WORKS THRU THE REGION MAINLY FROM THE AFTERNOON INTO THE EVENING. AN UPPER LEVEL RIDGE WILL MOVE OVER THE AREA SUNDAY AND SUNDAY NIGHT. AT THE SURFACE A WARM FRONT WILL PUSH THROUGH FROM THE WEST WITH LIFT. A BREAK MIDDAY BEFORE ANOTHER WEAK COLD FRONT MONDAY NIGHT.
543 AM CDT SUN JUN 14 2015 LATEST UPPER AIR ANALYSIS/WATER VAPOR SATELLITE IMAGERY CONTINUED TO SHOW A DEEP LAYER RIDGE OVER THE SE CONUS. WITH BROAD TROFFING OVER THE SOUTHERN ROCKIES. AN UPPER TROF WAS ALSO NOTED OVER THE SOUTHERN GULF JUST NORTH OF THE YUCATAN PENINSULA. AS THE REGION REMAINS WITHIN A LONG FETCH OF DEEP TROPICAL MSTR FLOWING AROUND THE RIDGE TO THE EAST.
HIGH PRESSURE BUILDS INTO THE REGION FROM THE NORTH ON MONDAY.
251 AM PDT SUN JUN 14 2015 HIGH PRESSURE WILL CONTINUE TO MOVE INTO THE REGION TODAY BRINGING DRIER CONDITIONS AND CONTINUED ABOVE NORMAL TEMPERATURES THROUGH THE WEEK.
ISOLATED THUNDERSTORMS WILL REMAIN POSSIBLE MAINLY IN THE HIGHER TERRAIN OF SOUTHERN NEVADA AND NORTHWEST ARIZONA TODAY BEFORE A DRY.
153 AM EDT SUN JUN 14 2015 WITH UPPER LEVEL RIDGING REMAINING CENTERED OVER THE SOUTHEASTERN STATES.
An upper level ridge of high pressure remains over the east coast as an upper level trough remains over the western U.
330 AM EDT SUN JUN 14 2015 A PROLONGED HEAT WAVE WILL CONTINUE THROUGH MID-WEEK AS AN UPPER RIDGE REMAINS ANCHORED OVER THE SOUTHEAST STATES WITH A THERMAL TROUGH OF LOW PRESSURE ACROSS THE PIEDMONT OF NORTH CAROLINA.
A BRIEF PERIOD OF DRY AND WARM WEATHER WILL GET UNDERWAY TODAY AS MID LEVEL RIDGING INCREASES FROM THE WEST. SYSTEM WILL BEGIN KICKING OUT TO THE EAST BY FRIDAY AFTERNOON/NIGHT AS JET ENERGY ROUNDS BASE OF TROF AND PULLS OUT INTO THE SOUTHERN PLAINS.
156 AM EDT THU OCT 29 2015 COLD FRONT CROSSES EARLY TONIGHT. COOLER AIR THURSDAY THROUGH FRIDAY. HIGH PRESSURE CROSSES LATE FRIDAY.
430 AM EDT THU OCT 29 2015 ISOLATED SHOWERS AHEAD OF THE NEXT COLD FRONT SWEEPING THROUGH THE REGION ALREADY ENTERING THE FAR NORTHWEST CORNER OF THE STATE. DRY CONDITIONS TONIGHT AND FRIDAY AS WEAK UPPER RIDGING BUILDS INTO THE SOUTHEASTERN U. BETWEEN THE EXITING UPPER TROUGH AND THE NEXT SYSTEM DIGGING INTO THE SOUTHERN ROCKIES AND HIGH PLAINS. NEAR SEASONAL TEMPERATURES SHOULD PREVAIL TONIGHT AND FRIDAY AFTER A SLIGHTLY WARMER THAN NORMAL DAY TODAY.
SHOWERS WILL DIMINISH OVER WESTERN WASHINGTON TODAY AS AN UPPER LEVEL TROUGH MOVES EAST OF THE AREA.
414 AM EDT THU OCT 29 2015 A COLD FRONT MOVES ACROSS THE REGION TODAY.
422 AM CDT THU OCT 29 2015 THE 09Z SURFACE ANALYSIS AND SATELLITE OBSERVATIONS SHOW A STRONG LOW PRESSURE SPINNING OVER THE GREAT LAKES REGION THIS MORNING WITH A COLD FRONT EXTENDING S/SWRD INTO THE CENTRAL/SOUTHERN PLAINS STATES. THE COLD FRONT WILL MOVE THROUGH LATER THIS AFTERNOON BUT WITH DRIER AIR ALOFT ARRIVING JUST BEFORE THE FRONT NOT EXPECTING ANYTHING IN THE WAY OF SHOWERS AS THE FRONT MOVES THROUGH.
1242 AM CDT THU OCT 29 2015 FOR 06Z TAFS /ISSUED 929 PM CDT WED OCT 28 2015/ AHEAD OF A SFC COLD FRONT CROSSING OVER THE MS RIVER VALLEY, ISOLATED SHOWERS HAVE DEVELOPED AND ARE MAINLY PROJECTED TO MOVE FROM CENTRAL MS TO CENTRAL AL. VFR CONDITIONS WILL CONTINUE ACROSS N AL/S MIDDLE TN AS ISOLATED -SHRA CROSS THE AREA AHEAD OF A SFC COLD FRONT. WINDS WILL THEN CHANGE TO NORTHERLY AFTER 14Z AS THE SFC COLD FRONT APPROACHES.
1138 PM MDT WED OCT 28 2015 06Z TAF CYCLE MID TO HIGH LEVEL CLOUDINESS MAY THIN OUT FROM WEST TO EAST PRIOR TO 29/15Z AS UPPER AIR PATTERN TRANSITIONS FROM WEAK RIDGE/ZONAL FLOW TO SOUTHWEST WINDS ALOFT IN ADVANCE OF UPPER LEVEL TROF.
353 AM EDT THU OCT 29 2015 A COLD FRONT WILL MOVE EAST ACROSS THE REGION TODAY. HIGH PRESSURE ARRIVES TONIGHT INTO FRIDAY FROM THE WEST. THIS HIGH WILL MOVE OFFSHORE THIS WEEKEND.
A large upper trough dominates much of eastern North America this morning with an upper low deepening over the Great Lakes. Max temps will be in the lower 80s in most areas with dew points in the lower to mid 60s, not quite as humid as recent days.
400 AM EDT THU OCT 29 2015 A COLD FRONT OVER OHIO WILL MOVE THROUGH THE AREA TODAY. HIGH PRESSURE WILL BUILD OVER THE REGION FRI AND SAT.
638 AM EDT THU OCT 29 2015 A COLD FRONT HAS PUSHED THROUGH THE AREA THIS MORNING LEAVING COOLER AND DRIER CONDITIONS IN ITS WAKE.
554 AM EDT THU OCT 29 2015 A WEAK COLD FRONT WITH LIMITED MOISTURE WILL MOVE THROUGH THE FORECAST AREA LATE THIS AFTERNOON AND EVENING.
THE UPPER LEVEL TROUGH APPROACHING UTAH WILL SETTLE ACROSS THE STATE TODAY. HIGH PRESSURE WILL RETURN FOR THE FIRST HALF OF THE WEEKEND.
428 AM CDT THU OCT 29 2015 An upper trough is currently over the western conus and is expected to deepen and move eastward during the day. Temperatures will be warmer this afternoon compared with yesterday with highs mostly in the mid 70s to lower 80s. As this upper trough begins to move over the region, rain and storm chances will spread eastward and significantly increase tonight into Friday morning.
A few areas of light fog remain ahead of the next cold front which is currently near Interstate 40. /issued / Cold front presently entering northeast Oklahoma will bring much lower dew points to at least the northern half of the forecast area for today, and for most areas, a slightly cooler afternoon.
359 AM CDT THU OCT 29 2015 Cold front presently entering northeast Oklahoma will bring much lower dew points to at least the northern half of the forecast area for today, and for most areas, a slightly cooler afternoon.
LARGE SCALE ASCENT WILL SPREAD OVER THE SRN PLAINS OVERNIGHT TONIGHT/EARLY FRIDAY MORNING AHEAD OF A LARGE UPPER TROUGH DIGGING SEWD FROM THE GREAT BASIN TOWARDS NRN MEXICO.
154 AM EDT THU OCT 29 2015 A WEAK COLD FRONT WITH LIMITED MOISTURE WILL MOVE THROUGH THE FORECAST AREA LATE THIS AFTERNOON AND EVENING.
428 AM EDT THU OCT 29 2015 A COLD FRONT HAS PUSHED THROUGH THE AREA THIS MORNING LEAVING COOLER AND DRIER CONDITIONS IN ITS WAKE.
A LARGE UPPER LEVEL LOW CONTINUES TO PROGRESS EASTWARD ACROSS THE GREAT LAKES THIS MORNING. SLIGHTLY DRIER AIR WILL MOVE INTO THE REGION AS HIGH PRESSURE SEEPS IN FROM THE NORTH. TONIGHT SHOULD BE ONE OF THE COOLER NIGHTS WE HAVE SEEN IN A WHILE. HIGH PRESSURE WILL REMAIN IN PLACE FRIDAY. WITH EASTERLY WINDS AND AFTERNOON TEMPERATURES IN THE LOW TO MID 80S.
518 AM EDT THU OCT 29 2015 A COLD FRONT WILL SWING THROUGH BY MID-MORNING.
SFC FRONT CURRENTLY LOCATED ACROSS DEEP S TX BUT XPCTD TO PUSH NWRD ACROSS THE REGION DRNG THE DAY THURS AS AN EFFECTIVE WARM FRONT. ENERLY SFC WINDS 5 TO 10 KTS TONIGHT GRADUALLY BECMG SERLY /SUSTAINED 10 TO 20 KTS/ AND GUSTY DRNG THE DAY THURS AS WARM FRONT PUSHES N.
435 AM CDT THU OCT 29 2015 A COLD FRONT ACROSS NORTHERN OKLAHOMA WILL CONTINUE TO SHIFT SOUTHWARD TODAY. IN RESPONSE TO INCREASING ISENTROPIC ASCENT AHEAD OF THE APPROACHING TROUGH.
A LARGE WEST COAST TROUGH WAS STRETCHED FROM BRITISH COLUMBIA ALL THE WAY DOWN TO NORTHERN BAJA THIS MORNING. THE TROUGH WAS SPLITTING WITH MUCH OF THE JET INDUCED ENERGY ON ITS WEST SIDE DIGGING IT INTO SOUTHERN ARIZONA. THE LESS ENERGETIC NORTHERN PORTION OF THE TROUGH WILL PROGRESS THROUGH THE ROCKIES. SOUTHWEST FLOW AHEAD OF THE DIGGING TROUGH HAD ALREADY PULLED IN GOOD MOISTURE THIS MORNING. MAINLY WITH AND AFTER THE COLD FRONT THAT WORKS ACROSS THE NORTH TODAY AND THROUGH THE CENTRAL TO SOUTHERN ZONES INTO THIS EVENING.
VFR wx will prevail thru the day in advance of another upper level trough.
A COLD FRONT WILL PUSH THROUGH THE REGION OVERNIGHT. HIGH PRESSURE WILL FOLLOW THE FRONT INTO THE EASTERN U. FIRST OF THE HIGH LEVEL VARIETY IN ADVANCE OF A SERIES OF SOUTHERN STREAM PERTURBATIONS FROM THE SOUTHERN PLAINS TO THE CA COAST. FOLLOWED QUICKLY BY A BAND OF CEILINGS AROUND 5000 FT THAT WILL ACCOMPANY A COLD FRONT FORECAST TO CROSS CENTRAL NC LATE THIS AFTERNOON AND THIS EVENING. TEMPERATURES WILL BE NOTICEABLY COOLER THAN PREVIOUS DAYS. SOME LOWER 30S WILL BE POSSIBLE OVER THE NORTHERN PIEDMONT/IN CLOSEST PROXIMITY TO THE CENTER OF THE HIGH.
TEMPS WILL RISE TO THE 60'S ACROSS MUCH OF THE AREA TODAY AND OVERNIGHT TEMPS WILL BE AT LEAST 10 DEGREES COOLER TOMORROW MORNING COMPARED TO THIS MORNING.
LOW PRESSURE WILL MOVE THROUGH THE AREA TODAY WITH PARTLY TO MOSTLY CLOUDY SKIES AND A CHANCE OF SHOWERS MAINLY OVER THE EASTERN PORTIONS OF THE FORECAST AREA.
316 AM CDT THU OCT 29 2015 A LARGE TROUGH CONTINUED TO DIG INTO THE MIDWEST OVERNIGHT. WITH AN UPPER LEVEL LOW POSITIONED OVER THE GREAT LAKES REGION. MEANWHILE A RIDGE BEGAN BUILDING INTO THE WESTERN STATES. STRONG NORTHWESTERLY FLOW BEHIND THE DEPARTING LOW PRESSURE SYSTEM CONTINUES TO SURGE COOLER AIR INTO THE REGION. AS OF 08Z TODAY LOWS HAVE DRIFTED INTO THE LOW TO MID 30S. HOWEVER TEMPS COULD QUICKLY FALL NEAR FREEZING UNDER LIGHT WINDS. WARMER SOUTHERLY FLOW RETURNS TO THE REGION THURSDAY NIGHT AS THE HIGH PRESSURE RIDGE PROGRESSES EASTWARD.
320 AM CDT THU OCT 29 2015 Dry air subsidence continues to push southward into northeast Kansas this morning behind the expansive upper low lifting over Lake Michigan. For tonight, a mid level trough deepens over the inter-mountain west, gradually phasing with a northern stream wave as it pushes eastward towards the CWA Friday. Increasing high clouds late Thursday evening from the approaching system may keep lows from falling to the freezing mark in the 34 to 36 degree range.
HIGH PRESSURE ARRIVES THURSDAY NIGHT INTO FRIDAY FROM THE WEST.
534 AM EDT THU OCT 29 2015 A COLD FRONT WILL SWING THROUGH BY MID-MORNING.
128 AM EDT THU OCT 29 2015 A COLD FRONT WILL CROSS THE AREA LATER TONIGHT.
SPLIT FLOW TROF WILL BEGIN TO WORK ACROSS OUR FORECAST AREA TODAY. FORCING IS RELATIVELY WEAK AND WILL NEED TO COMBAT DOWNSLOPE IN THE LOWER LEVELS. DEEPENING LEE SIDE SURFACE TROF WILL RESULT IN INCREASED GAP FLOW POTENTIAL AT LIVINGSTON AND NYE BY FRIDAY NIGHT. THE LOWER ELEVATIONS MAY SEE SOME VIRGA OR LIGHT SHOWERS.
345 AM CDT THU OCT 29 2015 AN UPPER LEVEL TROUGH OF LOW PRESSURE THAT BROUGHT OUR FIRST TASTE OF WINTER WEATHER WILL EXIT THE REGION TODAY. A WEAK TROUGH WILL SLOWLY CROSS THE REGION ON FRIDAY. THIS TROUGH SHOULD PASS THROUGH THE CWA DRY.