Aikyam-Lab/Synoptic-Bench huggingface dataset:
A WEAK TROUGH WILL REMAIN EAST OF THE APPALACHIANS. AMIDST AN AREA OF CANADIAN HIGH PRESSURE CENTERED NEAR THE MIDDLE ATLANTIC COAST. WITH AN UPPER LEVEL TROUGH OVER THE EAST COAST AND HIGH PRESSURE AT THE SURFACE. RESULTING IN TEMPS A DEGREE OR TWO WARMER. MON-THU: THE AFOREMENTIONED SHEAR AXIS WILL BE BRIEFLY OVERTAKEN BY A MID LEVEL RIDGE OVER THE SOUTHEAST STATES EARLY MON. MODELS SHOW THE EAST COAST TROUGH WEAKENING AND SHIFTING EAST. AND THE MID LEVEL RIDGE THAT IS OVER THE DESERT SOUTHWEST EARLY IN THE WEEK SHIFTS EASTWARD TO THE MID SOUTH AND INTERIOR SOUTHEAST BY FRI. AND WILL GENERALLY HAVE HIGHS IN THE LOWER 90S WITH LOWS WITHIN A COUPLE DEGREES OF 70 EACH DAY. AN AREA OF HIGH PRESSURE WILL MAINTAIN VFR CONDITIONS THROUGH THE WEEKEND.
626 AM EDT FRI AUG 14 2015 WEAK HIGH PRESSURE TO THE NORTH WILL BRING SEASONABLE WEATHER AND SOMEWHAT LOWER HUMIDITY OVER THE WEEKEND. AS HIGH PRESSURE REMAINS CENTERED TO OUR NORTH. A FORMER COLD FRONT WILL REMAIN STALLED WELL OFFSHORE THROUGH THIS PERIOD. THE REGION WILL BE UNDER A WEAKNESS ALOFT WITH RIDGING ACROSS THE ATLANTIC AND ACROSS THE SOUTHWEST.
345 AM CDT FRI AUG 14 2015 THE TENNESSEE VALLEY REMAINS SITUATED BETWEEN THE STRONG UPPER LEVEL RIDGE OVER THE WESTERN CONUS AND THE BROAD UPPER LEVEL TROUGH OVER THE EAST COAST. AN INVERTED TROUGH WAS NOTED ACROSS SOUTHERN ALABAMA. A FAIRLY STRONG UPPER TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST REGION TODAY. AND WILL BEGIN TO SHIFT THE UPPER RIDGE WESTWARD. DISTURBANCES MOVING AROUND THE EASTERN PERIPHERY OF THE RIDGE WILL MERGE WITH THE UPPER TROUGH. AMPLIFYING THE TROUGH OVER THE SOUTHEAST. THE SURFACE INVERTED TROUGH WILL SHIFT TO THE NORTHEAST TODAY. THE UPPER TROUGH WILL REMAIN ACROSS THE MID MISSISSIPPI VALLEY OVERNIGHT. AN UPPER LEVEL CLOSED LOW WILL DEVELOP TO THE WEST DURING THE DAY ON SATURDAY.
A WEAKENING UPPER TROUGH WILL GIVE WAY TO A BUILDING RIDGE OVER THE REGION BY THIS WEEKEND.
151 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL GIVE WAY TO A WEAK DISTURBANCE ALOFT CROSSING THE GREAT LAKES TODAY. WARM AND MUGGY CONDITIONS WILL PREVAIL TODAY WITH HIGHS IN THE LOW TO MID 80S. WK SW OVR SWRN ONTARIO ROUNDING TOP OF PERSISTENT SWRN US UPR RIDGE WILL SHEAR OUT ACRS THE LAKES THIS PD.
519 AM EDT FRI AUG 14 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT SEVERAL DAYS. SKIES ARE MOSTLY CLEAR UNDER THE NW FLOW ALOFT ON THE BACK SIDE OF A WEAKENING UPPER TROUGH OVER THE NERN US. SHORT WAVE ENERGY/WEAKENING COLD FRONT FEEDING DOWN OUT OF THE GR LAKES AND SRN CANADA COULD TRIGGER A SHOWER OR THUNDERSTORM OVER THE NORTH LATER TODAY. AVERAGING IN THE LOW TO MID 60S ACROSS THE FORECAST AREA. SATURDAY WILL CONTINUE WARM WITH THE HUMIDITY BEGINNING TO CREEP INTO THE NOTICEABLE RANGE AS DEWPOINTS CLIMB INTO THE LOW TO MID 60S. MODELS DEVELOP SOME MEASURE OF INSTABILITY AS A WEAK UPPER TROUGH/SHEAR AXIS IS MADE TO SETTLE DOWN OVER THE REGION DURING THE DAY.
236 AM CDT FRI AUG 14 2015 High pressure looks to hold firm across the Ohio river valley through much of the short term.
WEAK FRONTAL BOUNDARY/TROUGH WILL SHIFT FARTHER SOUTHWARD INTO LAKE/VOLUSIA COUNTIES BEFORE WEAKENING. THE 500MB TROUGH AXIS OVER THE EASTERN PANHANDLE LIFTS NORTHWARD AND ALLOWS UPPER LEVEL HIGHS OVER THE SOUTHERN PLAINS AND THE BAHAMA ISLANDS TO BUILD TOWARD EACH OTHER BUT NOT MERGE. THE PERSISTENT SW- NE ORIENT TROUGHING TRANSITIONS TO HIGH PRESSURE THAT UNDERCUTS THE MOISTURE THAT WAS WITH THE TROUGH. WEAK DISTURBANCES ROUNDING THE BASE OF THE TROUGH AND THE HIGH MOISTURE CONTENT COMBINE TO PRODUCE SCATTERED TO NUMEROUS SHOWERS AND STORMS LATE FRI MORNING THROUGH THE AFTERNOON.
A MID-LEVEL TROUGH OVER THE EASTERN SEABOARD OF THE UNITED STATES EXTENDS SOUTH INTO FLORIDA. THE TROUGH ALOFT WILL ERODE NORTHWARD ALLOWING THE FRONTAL BOUNDARY AND ASSOCIATED SURFACE MOISTURE TO SLOWLY RETREAT.
441 AM EDT FRI AUG 14 2015 A BROAD AREA OF HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY. A WEAK COLD FRONT WILL DISSIPATE OVER THE AREA SATURDAY NIGHT.
307 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL BUILD EAST AND CREST ACROSS THE AREA TODAY BEFORE SLIDING OFFSHORE.
335 AM CDT FRI AUG 14 2015 WEAK HIGH PRESSURE IS CURRENTLY SITUATED ACROSS THE REGION AND LOW LEVEL MOISTURE REMAINS HIGH /DEWPOINT DEPRESSIONS BASICALLY RANGE FROM 1 TO 3 DEGREES AT A MAJORITY OF THE OBS SITES/. BUT JUST HOW FAR NORTH THE THERMAL RIDGE EXTENDS IS UP FOR DEBATE. BUT LIKE MOST COLD FRONT SITUATIONS. WILL SEE THE LOW LEVEL JET INCREASE ACROSS THE EASTERN CWA LATER SATURDAY EVENING HOWEVER.
SHORT TERM MODELS (HRRR/RAP) HAVE BEEN CONSISTENT WITH TROUGH/WEAK FRONT IN THE NEBRASKA SANDHILLS BECOMING THE FOCUS FOR THUNDERSTORMS IN THE NEXT COUPLE HOURS. AN UPPER LEVEL RIDGE IS ACROSS THE AREA FRIDAY NIGHT INTO SATURDAY. THIS WILL HELP KEEP TEMPERATURES ON THE WARMER SIDE.
416 AM MDT FRI AUG 14 2015 VERY SUBTLE CHANGES TO THE LARGE SCALE PATTERN WITH A UPPER HIGH RIDGE FROM THE FOUR CORNERS NORTH INTO SOUTH CENTRAL CANADA. A UPPER LOW WAS SPINNING OFF THE OR/NORTHERN CA COAST. WITH A TROUGH ALONG THE ATLANTIC COAST. SURGES OF MONSOON MOISTURE WITH EMBEDDED WEAK DISTURBANCES ROTATING CLOCKWISE AROUND RIDGE TRIGGERED CLUSTERS OF DEEP CONVECTION ACROSS THE CENTRAL AND SOUTHERN HIGH PLAINS. THE UPPER RIDGE WILL HOLD SWAY OVER THE ROCKY MOUNTAINS AND PLAINS TODAY WITH NORTHWEST STEERING FLOW ALOFT.
315 AM EDT FRI AUG 14 2015 WEAK HIGH PRESSURE TO THE NORTH WILL BRING SEASONABLE WEATHER AND SOMEWHAT LOWER HUMIDITY OVER THE WEEKEND. AS HIGH PRESSURE REMAINS CENTERED TO OUR NORTH. A FORMER COLD FRONT WILL REMAIN STALLED WELL OFFSHORE THROUGH THIS PERIOD. THE REGION WILL BE UNDER A WEAKNESS ALOFT WITH RIDGING ACROSS THE ATLANTIC AND ACROSS THE SOUTHWEST.
356 AM EDT FRI AUG 14 2015 A BROAD AREA OF HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY. A WEAK COLD FRONT WILL DISSIPATE OVER THE AREA SATURDAY NIGHT.
WITH A WEAK INVERTED TROUGH DEVELOPING OFFSHORE TODAY. HIGHS TODAY WILL RANGE FROM THE LOWER/MID 90S ACROSS INTERIOR SE GA. LOWS IN THE LOWER/MID 7OS WILL PREVAIL TNGT. WEAK RIDGING AT THE SURFACE AND ALOFT WILL LEAD TO MAINLY DIURNALLY DRIVEN CONVECTION. WHILE OVERALL PATTERN WITH RIDGING AT THE SURFACE AND ALOFT WILL CONTINUE.
MINOR WOBBLES IN THE RIDGE AXIS ALOFT. AND A LITTLE MIXING OUT OF THE LOW LEVEL MOISTURE NEAR THE FRONT RANGE.
1246 AM CDT FRI AUG 14 2015 HIGH PRESSURE CONTINUES TO DOMINATE WITH WIDESPREAD VFR CONDITIONS CONTINUING THROUGH THE PERIOD.
Upper level low pressure off the NW CA coast will gradually move into the Pacific Northwest today. Main effects for our CWA will be breezy SWly winds through this evening mainly over the higher terrain and especially along and east of the Sierra crest. but is likely to re-appear Fri nite and Sat morning as winds turn Nly in the wake of the low pressure system moving into the Pac NW. Temperatures today should be similar to Thu over the Srn half of the CWA and a little cooler over the Nrn half of the CWA as a little CAA is forecast across the north with the passing of the upper low. More significant warming is expected during the weekend as ridging over the 4-Corners Region expands NWwd over CA.
156 AM EDT FRI AUG 14 2015 A WEAK RIDGE OF HIGH PRESSURE WILL BUILD INTO THE NORTH COUNTRY OVERNIGHT. THE THREAT FOR MORE SHOWERS AND ISOLATED THUNDERSTORMS WILL RETURN LATER FRIDAY AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE NORTHWEST.
259 AM PDT FRI AUG 14 2015 LOW PRESSURE CONTINUES TO SLOWLY LIFT ACROSS THE EASTERN PACIFIC TOWARDS THE AREA. THE LOW WILL LIFT ACROSS THE AREA QUICKLY TONIGHT AND EXIT THE AREA SATURDAY AS RAIN CHANCES WILL DROP OFF SHARPLY. COOLER THAN NORMAL TODAY WITH THE CLOUDS. UPPER LOW PRESENTLY OFFSHORE. THE LOW IS NOW STEADILY PROGRESSING TO THE NORTHEAST AND SPREADING SHOWERS QUICKLY FROM SOUTH TO NORTH. THE LOW WILL WEAKEN AND KICK NORTHEAST THROUGH THE DAY AND BY 06Z SAT WILL BE OUT OF THE AREA WITH A FEW LINGERING SHOWERS.
125 AM EDT FRI AUG 14 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT 3 TO 4 DAYS.
405 AM EDT FRI AUG 14 2015 MARINE A WEAK COLD FRONT WASHES OUT OVER SOUTHWEST LOWER MICHIGAN TODAY RESULTING IN SCATTERED AFTERNOON THUNDERSTORMS OVER AREAS AND EAST OF LANSING. OTHERWISE IT WILL PARTLY CLOUDY AND WARMER TODAY WITH HIGHS WELL UP INTO THE 80S.
139 AM EDT FRI AUG 14 2015 UPDATE A COLD FRONT WILL SLOWLY SINK SOUTH ACROSS LOWER MICHIGAN TONIGHT AND FRIDAY BEFORE WASHING OUT NEAR I-96.
636 AM EDT FRI AUG 14 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT SEVERAL DAYS. SKIES ARE MOSTLY CLEAR UNDER THE NW FLOW ALOFT ON THE BACK SIDE OF A WEAKENING UPPER TROUGH OVER THE NERN US. SHORT WAVE ENERGY/WEAKENING COLD FRONT FEEDING DOWN OUT OF THE GR LAKES AND SRN CANADA COULD TRIGGER A SHOWER OR THUNDERSTORM OVER THE NORTH LATER TODAY. AVERAGING IN THE LOW TO MID 60S ACROSS THE FORECAST AREA. SATURDAY WILL CONTINUE WARM WITH THE HUMIDITY BEGINNING TO CREEP INTO THE NOTICEABLE RANGE AS DEWPOINTS CLIMB INTO THE LOW TO MID 60S. MODELS DEVELOP SOME MEASURE OF INSTABILITY AS A WEAK UPPER TROUGH/SHEAR AXIS IS MADE TO SETTLE DOWN OVER THE REGION DURING THE DAY.
127 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL EXTEND FROM THE OHIO VALLEY EASTWARD INTO THE DELMARVA REGION THROUGH FRIDAY. HIGH PRESSURE WILL CONTINUE TO RIDGE INTO THE FORECAST AREA FRIDAY. TEMPERATURE GUIDANCE HAS BEEN CONSISTENT WITH HIGHS IN THE LOW 90S AND LOWS IN THE UPPER 60S FRIDAY NIGHT.
THIS LOW WILL MOVE ACROSS THE AREA FRIDAY AFTERNOON AND OVER CANADA FRIDAY NIGHT. A WEAK LOW PRESSURE SYSTEM WILL REMAIN OVER THE REGION ON SATURDAY.
230 AM EDT FRI AUG 14 2015 HIGH PRESSURE INTO THE WEEKEND WITH WEAK WIND FLOW.
610 AM EDT FRI AUG 14 2015 WEAK HIGH PRESSURE TO THE NORTH WILL BRING SEASONABLE WEATHER AND SOMEWHAT LOWER HUMIDITY OVER THE WEEKEND. AS HIGH PRESSURE REMAINS CENTERED TO OUR NORTH. A FORMER COLD FRONT WILL REMAIN STALLED WELL OFFSHORE THROUGH THIS PERIOD. THE REGION WILL BE UNDER A WEAKNESS ALOFT WITH RIDGING ACROSS THE ATLANTIC AND ACROSS THE SOUTHWEST.
359 AM MDT FRI AUG 14 2015 HIGH PRESSURE WILL BE CENTERED OVER NORTHWEST NEW MEXICO TO CLOSE OUT THE WEEK. OR JUST A LITTLE ABOVE NORMAL BENEATH THE HIGH PRESSURE RIDGE. A TROUGH WILL MOVE ALONG THE U. DRAGGING A WEAK COLD FRONT THROUGH THE NORTHERN ROCKIES. THE HIGH CENTER WILL BE PUSHED WEST AND SOUTH ALLOWING SOME OF THE WEST WIND FLOW INTO THE AREA.
145 AM EDT FRI AUG 14 2015 A WEAK RIDGE OF HIGH PRESSURE WILL BUILD INTO THE NORTH COUNTRY OVERNIGHT. THE THREAT FOR MORE SHOWERS AND ISOLATED THUNDERSTORMS WILL RETURN LATER FRIDAY AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE NORTHWEST.
UPPER LEVEL RIDGE BEGINS TO BREAKDOWN WITH THE APPROACH OF A STORM SYSTEM OVER THE N CALIFORNIA COAST. DESPITE THE BEGINNING OF THE RIDGE BREAKDOWN. AS THE RIDGE BREAKS DOWN. A PUSH OF MONSOONAL MOISTURE WILL RIDE THE BACK SIDE OF THE RIDGE BRINGING WITH IT THE CHANCE OF SOME AFTERNOON STORMS FROM BILLINGS WEST. HRRR SURFACE PRECIP PROGS SHOW NICE COVERAGE OF PULSE TYPE STORMS OVER THE HIGHER ELEVATION BY 20 UTC. IN CONCERT WITH THE UPPER LEVEL LOW MOVING OVER THE CANADIAN PRAIRIES BY SATURDAY MORNING.
343 AM CDT FRI AUG 14 2015 SFC RIDGING WILL REMAIN IN PLACE FOR A FEW MORE DAYS WITH NEAR PERSISTENT CONDITIONS. RIDGE AXIS SHIFTS EASTWARD OVER THE WEEKEND ALLOWING A LONGER FETCH OF SOUTHERLY FLOW TO DEVELOP WITH A RETURN OF HIGHER DEWPOINTS AND WARMER TEMPERATURES.
413 AM CDT FRI AUG 14 2015 THE LATEST SFC ANALYSIS WAS INDICATING THE RIDGE AXIS SINKING SOUTHWARD ACRS THE MID MS RVR AND OH RVR VALLEY REGIONS. WHILE LIGHT SOUTHERLY RETURN FLOW WAS CONVERGING ON A BOUNDARY/TROF COMPLEX ACRS THE NORTHERN PLAINS INTO THE NORTHWESTERN GRT LKS. WILL WALK OUT THE ABOVE MENTIONED SHOWERS/SPRINKLES OUT OF THEN THE MODELS ALL SUGGEST UPPER RIDGE AXIS TO ADJUST EASTWARD ACRS THE UPPER TO MID MS RVR VALLEY THROUGH THIS EVENING. BUT FEEL WITH CAP AND RIDGE ENHANCEMENT FURTHER TO THE WEST CLOSER TO THE DVN CWA. CONTINUED UPPER RIDGE AXIS ADJUSTMENT EASTWARD ACRS THE UPPER MS RVR VALLEY INTO THE CENTRAL PLAINS SHOULD MAKE FOR A FAIR LATE NIGHT WITH LOWS IN THE MID TO UPPER 60S.
244 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL BUILD SOUTH OF THE AREA TODAY. A WEAK COLD FRONT WILL APPROACH TONIGHT AND CROSS THE AREA ON SATURDAY.
600 AM EDT FRI AUG 14 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE FROM THE MISSISSIPPI VALLEY TO THE EASTERN SEABOARD WILL DOMINATE INDIANA WEATHER THROUGH THE WEEKEND.
413 AM EDT FRI AUG 14 2015 A STRENGTHENING RIDGE WILL DEVELOP OVER THE GREAT LAKES AND EASTERN UNITED STATES OVER THE NEXT SEVERAL DAYS. SKIES ARE MOSTLY CLEAR UNDER THE NW FLOW ALOFT ON THE BACK SIDE OF A WEAKENING UPPER TROUGH OVER THE NERN US. SHORT WAVE ENERGY/WEAKENING COLD FRONT FEEDING DOWN OUT OF THE GR LAKES AND SRN CANADA COULD TRIGGER A SHOWER OR THUNDERSTORM OVER THE NORTH LATER TODAY. AVERAGING IN THE LOW TO MID 60S ACROSS THE FORECAST AREA. SATURDAY WILL CONTINUE WARM WITH THE HUMIDITY BEGINNING TO CREEP INTO THE NOTICEABLE RANGE AS DEWPOINTS CLIMB INTO THE LOW TO MID 60S. MODELS DEVELOP SOME MEASURE OF INSTABILITY AS A WEAK UPPER TROUGH/SHEAR AXIS IS MADE TO SETTLE DOWN OVER THE REGION DURING THE DAY.
Upper level low pressure off the NW CA coast will gradually move into the Pacific Northwest later tonight and Friday. Main effects for our CWA will be breezy SWly winds through Friday evening mainly over the higher terrain and especially along and east of the Sierra crest. but is likely to reppear Fri nite and Sat morning as winds turn Nly in the wake of the low pressure system moving into the Pac NW. and on Fri should be similar to Thu over the Srn half of the CWA and a little cooler over the Nrn half of the CWA as a little CAA is forecast across the north with the passing of the upper low. More significant warming is expected on the weekend as ridging over the 4-Corners Region will expand NWwd over CA.
THE SHIFT TO DRY WESTERLY FLOW MEANS COOLER AIR MASS MOVING IN IS OFFSET BY CLEARER SKIES. SECOND SURGE ARRIVES LATER THIS AFTERNOON AHEAD OF COLD FRONT PASSAGE.
1202 AM CDT FRI AUG 14 2015 Dry conditions will prevail for the end of the work week and into the weekend as high amplitude upper ridge remains anchored over the western 2/3 of the US. a deep trough is poised off the west US coast and will move into the Pacific NW and begin to flatten the ridge as it moves through the northern tier.
656 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL PERSIST ACROSS THE AREA THROUGH THE WEEKEND. WK TROUGH ALOFT INVOF ERN STATES CONTS TO WEAKEN SUN NGT INTO MON. HIGH PRESSURE IS CENTERED OVER THE CENTRAL APPALACHIANS THIS MORNING.
THIS TREND WILL BEGIN TO BREAK DOWN TOMORROW AS A COLD FRONT PUSHES THROUGH THE AREA BEGINNING IN THE MORNING AND PUSHING THROUGH SOUTHERN TX PANHANDLE OVERNIGHT. THURSDAY WILL SEE SIMILAR TO SLIGHTLY COOLER TEMPS THAN TODAY AS THE COOL AIR LAGS BEHIND THE FRONT. LOWS THURSDAY NIGHT WILL BE ABOUT 10 DEGREES COOLER THAN TONIGHT AND WINDS PICKUP DUE TO A LLJ BRINGING 40 TO 45KT NORTHWEST FLOW OVER THE AREA AND MIXING THE COOLER AIR DOWN.
AN UPPER RIDGE AXIS AND LOW-LEVEL OFFSHORE FLOW WILL PREVAIL OVER WESTERN WASHINGTON THROUGH THURSDAY EVENING.
649 PM EDT WED OCT 14 2015 HIGH PRESSURE WILL BUILD ACROSS THE AREA THROUGH LATE WEEK.
239 PM CDT WED OCT 14 2015 THE 19Z SURFACE ANALYSIS INDICATED THAT THE RIDGE OF HIGH PRESSURE WAS REMAINING ACROSS THE SOUTHEAST WITH SUNNY SKIES ACROSS THE REGION. AND IN THE LOW-MID 80S IN NORTHWEST ALABAMA.
339 PM CDT WED OCT 14 2015 (Today and Tonight) Dry conditions will continue for the next 24 hours, with afternoon highs today slightly warmer than yesterday. Thus, highs today will likely be a couple degrees warmer, especially given sunny skies and relatively light surface winds.
A COLD FRONT IS MOVING SLOWLY SOUTHWARD EARLY THIS AFTERNOON. COOLER MORNING LOW TEMPERATURES CAN BE EXPECTED THURSDAY. WHILE POINTS SOUTH SHOULD GENERALLY BE IN THE LOW TO MID 60S. BROAD UPPER LONGWAVE TROUGH HOLDS OVER THE ENTIRE EASTERN U. THE WEAK SURFACE FRONT TO REMAIN STALLED ACROSS SOUTH FLORIDA TO THE FLORIDA STRAITS TO END THE WORK WEEK WITH HIGH PRESSURE FILTERING INTO THE DEEP SOUTH.
631 PM EDT WED OCT 14 2015 HIGH PRESSURE WILL BRIEFLY RIDGE INTO THE REGION FROM THE LOWER OHIO RIVER VALLEY TONIGHT. THE NEXT AREA OF LOW PRESSURE WILL PASS NORTH OF THE GREAT LAKES ON THURSDAY WITH THE ASSOCIATED COLD FRONT MOVING SOUTH ACROSS THE AREA THURSDAY NIGHT. HIGH PRESSURE WILL TEND TO BUILD ACROSS THE MIDWEST AND LOWER OHIO VALLEY THROUGH THE END OF THE WEEK. BUT A TROUGH WILL PERSIST ACROSS THE EASTERN GREAT LAKES. CURRENT DEW POINTS ARE STILL IN THE LOWER TO MIDDLE 40S AT THIS TIME BUT EXPECTING LOWER DEW POINT AIR TO PUSH EAST. THE RIDGE WILL BE SHORT LIVED BUT WILL BE ENOUGH TO ALLOW FOR SEASONABLE HIGHS ON THURSDAY. THE NEXT COLD FRONT WITH THE COLDEST AIR OF THE SEASON THUS FAR WILL PRESS IN QUICKLY THURSDAY EVENING.
333 PM EDT WED OCT 14 2015 A COLD FRONT MOVES OFFSHORE THIS EVENING. HIGH PRESSURE BRIEFLY PASSES OVER THE AREA THURSDAY.
FOR 18Z TAFS HIGH PRESSURE WILL CONTINUE TO SLIDE INTO THE REGION FROM THE NORTHWEST TODAY. WITH CLEAR SKIES AND MORE VARIABLE WINDS TOMORROW WITH THE HIGH DIRECTLY OVERHEAD.
303 PM EDT WED OCT 14 2015 HIGH PRESSURE WILL BUILD ACROSS THE AREA THROUGH LATE WEEK.
/ISSUED 641 AM CDT WED OCT 14 2015/ HIGH PRESSURE WILL REMAIN IN CONTROL OF THE WEATHER WITH VFR CONDITIONS PERSISTING THROUGH THE TAF CYCLE. /ISSUED 342 AM CDT WED OCT 14 2015/ MAIN CONCERNS IN THIS FORECAST CYCLE REMAIN THE HIGH WILD FIRE DANGER.
309 PM MDT WED OCT 14 2015 UPR RIDGING WL BE FOUND OVER THE AREA TONIGHT AND THURSDAY. MAINLY IN THE LOWER ELEVATION LOCATIONS INCLUDING THE ALAMOSA AREA. WL PROBABLY SEE A 2-3 HOURS PERIOD OF SUB FREEZING TEMPS AND THUS WL LEAVE THE FREEZE WARNING IN EFFECT. AS LOCATIONS CLOSER TO THE MOUNTAINS WL MOSTLY STAY ABOVE FREEZING. IT MAKES THE HIGH TEMPS FORECAST A LITTLE CHALLENGING. WHICH WL BE COOLER THAN TODAY BUT STILL ABOVE AVERAGE. WHILE GENERALLY COOLER CONDITIONS MOVE ACROSS THE PLAINS.
1219 PM CDT WED OCT 14 2015 THE FORECAST AREA WILL BE IN BETWEEN LOW PRESSURE POSITIONED OVER CENTRAL ONTARIO AND HIGH PRESSURE CENTERED OVER SOUTHERN IOWA. A COLD FRONT DRIFTS SOUTH AND INTO THE FORECAST AREA LATE TONIGHT INTO THURSDAY AS A TROUGH DROPS SOUTH OUT OF CANADA. THIS TROUGH WILL SPELL BIG CHANGES FOR TEMPERATURES OVER THE NEXT COUPLE OF DAYS. COOLER AIR STARTS TO TRICKLE IN DURING THE AFTERNOON HOURS. THE TROUGH THEN PUSHES THROUGH DURING THE LATE MORNING AND AFTERNOON HOURS AND COULD TRIGGER A FEW RAIN SHOWERS MAINLY NORTH OF INTERSTATE 90.
338 PM CDT WED OCT 14 2015 WEATHER CONCERNS EARLY THIS EVENING IS WHETHER -SHRA/SPRINKLES DEVELOP ALONG THE LEADING EDGE OF SLIGHTLY WARMER AIR MOVING ACROSS EASTERN SOUTH DAKOTA AND INTO THE SOUTHERN QUARTER OF MINNESOTA.
WEAK HIGH PRESSURE IS SITUATED OVER NORTHERN MO/SOUTHERN IA WITH LEE TROUGHING OVER THE SOUTHERN HIGH PLAINS. MAIN STORY FOR THE SHORT TERM WILL BE A COLD FRONT THAT IS STILL EXPECTED TO PASS THROUGH THE FORECAST AREA THU. AHEAD OF THE COLD FRONT.
145 PM MDT WED OCT 14 2015 UPPER LEVEL HIGH PRESSURE STRETCHES FROM THE SOUTHERN ROCKIES INTO THE PACIFIC NORTHWEST. AN UPPER LEVEL DISTURBANCE OVER THE NORTHERN PLAINS STATES WILL HELP PUSH A DRY COLD FRONT ACROSS NORTHEASTERN COLORADO THURSDAY MORNING. THIS FRONT WILL USHER IN COOLER TEMPERATURES AND PRODUCE GUSTY NORTH TO NORTHEASTERLY WINDS THROUGH EARLY AFTERNOON. TEMPERATURES ON THE PLAINS AND PALMER DIVIDE WILL BE 10 TO 15 DEGREES COOLER THAN TODAY WITH HIGH IN THE 60S. AS MINIMUM TEMPERATURES WILL FLIRT WITH THE FREEZING MARK ESPECIALLY ALONG THE SOUTH PLATTE RIVER.
HIGH PRESSURE OVER THE REGION WILL WEAKEN TONIGHT AS A PACIFIC WEATHER SYSTEM MOVES INTO THE REGION THURSDAY THROUGH THE WEEKEND.
159 PM EDT WED OCT 14 2015 HIGH PRESSURE CROSSES THURSDAY.
144 PM CDT WED OCT 14 2015 High pressure at the surface will move from the mid Ms valley across the lower and mid Oh valley tonight. As the High shifts further east tmrw, low level slys will commence ahead of a developing/approaching cold front. The passing cold front will encounter an atmos short on moisture as it drives thru.
The upper trough currently entering the Great Lakes Region is expected to dig southeast through the day Thursday. A fairly progressive yet shallow cold front pushes through the CWA during the afternoon, veering winds to the north at 10 to 15 mph sustained. The cold air lags far behind the sfc boundary, not deterring the highs to reach the upper 70s once again. Soundings however show the better probabilities of precip occurring south of the CWA due to the ample dry air in the low levels. Very high fire danger across northeast KS resides mostly near the Concordia area in the late afternoon where minimum RH values reach the lower 20s.
327 PM CDT WED OCT 14 2015 A COLD FRONT WILL MOVE SOUTH THROUGH THE CENTRAL PLAINS TONIGHT. THIS FRONT WILL USHER IN COOLER TEMPERATURES THURSDAY. WITH HIGHS ABOUT 10 TO 15 DEGREES COOLER THAN TODAY. THE STRONGEST COLD AIR ADVECTION WILL REMAIN CONFINED TO NORTHERN/NORTHWEST NEBRASKA WHERE HIGHS WILL ONLY TOP OUT IN THE LOWER TO MID 60S.
18Z SFC DATA HAS HIGH PRESSURE FROM THE MID MISSISSIPPI VALLEY TO THE GULF COAST. THE STRONGER WINDS ON THURSDAY WILL ALLOW THE ATMOSPHERE TO MIX DEEPER WHICH WILL ALLOW SLIGHTLY WARMER TEMPERATURES THAN WEDNESDAY. THE COLD FRONT WILL HAVE ALREADY MOVED THROUGH BY EARLY THURSDAY EVENING.
558 PM EDT WED OCT 14 2015 AN AMPLIFIED UPPER LEVEL TROUGH OVER EASTERN CANADA WILL DOMINATE THE REGIONAL WEATHER PATTERN THROUGH THE WEEKEND WITH TEMPERATURES AVERAGING BELOW NORMAL. SECONDARY UPPER TROF PUSHING INTO WESTERN AREAS THIS AFTERNOON ACCOMPANIED BY SCT SHOWERS ACROSS NW PA WHICH ARE NOW SPREADING INTO PARTS OF THE NW AND WEST CENTRAL MOUNTAINS. A MID TO HIGH CLOUD SHIELD ASSOCIATED WITH THIS UPPER TROF IS ALSO PUSHING THROUGH SOUTHEASTERN AREAS. LAKE EFFECT AND UPSLOPE RAIN SHOWERS WILL CONTINUE TO MOVE INTO THE NW/W CENTRAL AND PORTIONS OF THE LAUREL HIGHLANDS INTO THIS EVENING BEFORE TAPERING OFF LATE TONIGHT AS HIGH PRESSURE BUILDS EASTWARD ALONG THE APPALACHIANS. WHILE CENTRAL AND SOUTHEASTERN AREAS RANGE FROM THE LOWER TO MID 40S.
/issued 237 PM CDT WED OCT 14 2015/ An upper trough is impacting the northeastern conus and the Upper Midwest with a cutoff low off of the southern coast of California. Temperatures are expected to increase across the area today with highs mostly in the lower 90s across the Permian Basin. Conditions are expected to remain similar through Thursday with upper ridging impacting the area.
THE HIGH WILL PASS TO OUR EAST ON THURSDAY. AND A COLD FRONT WILL MOVE IN FROM THE NORTHWEST ON THURSDAY NIGHT.
AND HIGH PRESSURE AT THE SURFACE WILL KEEP SKIES CLEAR INTO THE EARLY MORNING HOURS. WSW FLOW IN THE LOW LEVELS WILL KEEP WAA OVER THE REGION THROUGH THE NIGHT AND LOW TEMPS IN THE LOW TO MID 40S ACROSS THE FORECAST AREA. THE BIGGER FORECAST CONCERN IS ON THURSDAY WHEN A COLD FRONT PASSES THROUGH THE REGION. AND FRONTOGENESIS/DEFORMATION IN THE LOWER LEVELS.
A MOSTLY DRY COLD FRONT WILL SWEEP QUICKLY THROUGH THE AREA ON THURSDAY NIGHT. WITH THE MORE URBAN AREAS STAYING IN THE LOW 40S. SECONDARY ISSUE IS THE COLD FRONT MOVING THROUGH THE AREA THURSDAY NIGHT. TEMPERATURES AS A LARGE DOME OF HIGH PRESSURE SETTLES OVER THE AREA IN THE WAKE OF THE FRONT WILL DROP TO SOME OF THE COOLEST READINGS SO FAR THIS YOUNG SEASON.
237 PM CDT WED OCT 14 2015 SURFACE MAP THIS AFTERNOON FEATURES HIGH PRESSURE CENTERED OVER IA WITH A WEAK COLD FRONT MOVING SOUTHEAST THROUGH NORTHERN MN. WILL BE WATCHING THAT COLD FRONT MOVE SOUTHWARD INTO THE REGION BY SUNRISE WHILE A MID-LEVEL TROUGH ROTATES SOUTHEASTWARD ACROSS THE NORTHERN PLAINS TOWARD THE RIVER REGION. AS THE MID-LEVEL TROUGH/STRONG 500-300MB PV ANOMALY PUSHES THROUGH DURING THE AFTERNOON. PLAN ON HIGHS THURSDAY IN THE MIDDLE 50S TO THE LOWER 60S.
137 PM EDT WED OCT 14 2015 HIGH PRESSURE WILL ALLOW FOR DRY CONDITIONS THROUGH THURSDAY. SHOWERS WILL BE POSSIBLE THURSDAY NIGHT AS A COLD FRONT PUSHES THROUGH. HIGH PRESSURE WILL SETTLE IN BEHIND THE FRONT FOR THE WEEKEND WITH THE COLDEST AIR OF THE SEASON. HIGH PRESSURE WILL PROVIDE GOOD RADIATIONAL COOLING TONIGHT.