Aikyam-Lab/Synoptic-Bench huggingface dataset:
749 AM EST THU NOV 12 2015 A COLD FRONT WILL BRING SHOWERS TODAY ALONG WITH GUSTY WINDS. MORNING UPDATE TO RECONFIGURE POPS AS FIRST WIND SHIFT HEADING EAST OF THE RIDGES AND TAKING DEEPER MOISTURE WITH IT. FOLLOWED BY MORE WIDESPREAD SHOWERS LATE DAY AS STACKED LOW PRESSURE SURFACE AND ALOFT MOVES ACROSS GREAT LAKES. THE FIRST TO CHANGE WILL BE THE HIGHEST RIDGE TOPS AND THEN THE FAR NORTH.
STRONG LOW PRESSURE OVER THE GREAT LAKES WILL PRODUCE STRONG GRADIENT WINDS TODAY. THIS LOW PRESSURE SYSTEM WILL MOVE UP THE ST. BUT A LOW PRESSURE TROUGH WILL EXTEND BACK TOWARDS THE GREAT LAKES.
450 AM CST THU NOV 12 2015 AN INTENSE AREA OF LOW PRESSURE THAT WAS CENTERED EAST OF EAU CLAIRE WI EARLY THIS MORNING WILL CONTINUE TO MOVE NORTHEAST TODAY. DEBATED ON CANCELING THE HIGH WIND WARNING. BUT INCREASE ONCE AGAIN BY NOON AS THE COMBINATION OF STRONG LAPSE RATES IN THE LOWEST 1KM AND CAA CONTRIBUTE TO SFC WIND SPDS OF 25-35 MPH. AS THE AREA OF LOW PRESSURE CONTINUES TO MOVE OFF TO THE NE THIS MORNING.
NO OTHER CONCERNS FOR TODAY AS HIGH PRESSURE CONTINUES TO BUILD INTO THE CWA.
1021 AM EST THU NOV 12 2015 A DRY COLD FRONT WITH LIMITED MOISTURE WILL CROSS THE AREA LATE THIS AFTERNOON.
Partially clear skies across northwest Montana this morning will allow some patchy dense freezing fog to develop through midday today.
659 AM EST THU NOV 12 2015 A COLD FRONT WILL MOVE THROUGH TONIGHT. HIGH PRESSURE WILL BUILD INTO THE REGION FOR THIS WEEKEND. HIGH PRESSURE MOVES QUICKLY OFF THE SOUTHEAST COAST AS THE COLD FRONT APPROACHES FROM THE WEST.
THIS TROF WILL CONT SE AND MOVE THRU HERE TONIGHT. SOME PATCHES OF CIRROSTRATUS WILL ARRIVE LATE AHEAD OF THE APPROACHING TROF. IT ACTUALLY COULD TURN P/CLOUDY FOR A TIME AS THE TROF MOVES THRU. WEAK RIDGING IS EXPECTED ACROSS THE PLAINS FOR THE END OF THE WEEK AND START OF THE UPCOMING WEEKEND.
Otherwise, low clouds wrapping around the back side of the low now cover all but our far southern counties. Expect today's highs to range from the middle 50s to the lower 60s.
THERE IS SOME LOWER LEVEL MOISTURE IN THE MTNS NORTH OF I-70 WHICH COULD LEAD A FEW LIGHT -SHSN OVER THE HIGHER PEAKS SO WILL MENTION SOME LOW POPS OVER THE GORE RANGE FOR THIS MORNING.
/issued 331 AM CST THU NOV 12 2015/ Weak upper ridge over the area will result in mild wx for the region the next several days. An upper trough will develop along the CA Coast early Friday. As this trough moves east a chance of rain will return to the forecast.
/ISSUED 407 AM CST THU NOV 12 2015/ COLD FRONT NEARLY THROUGH THE CWA THIS HOUR WITH A FEW LINGERING SHOWERS ACROSS NORTHEAST MISSISSIPPI. THE LEADING EDGE OF A COOLER AND DRIER AIRMASS WILL SETTLE INTO THE MIDSOUTH THE NEXT 24 HOURS.
A THIN BAND OF SHOWERS AHEAD OF A COLD FRONT IS MOVING ACROSS NORTHWEST CENTRAL ALABAMA THIS MORNING. WITH AN AREA OF SCATTERED RAIN LAGGING ABOUT 1 HOUR BEHIND AND JUST AHEAD OF THE COLD FRONT. DRIER AIR WILL WORK IN FROM THE NORTHWEST AS HIGH PRESSURE BUILDS INTO THE SOUTHEASTERN CONUS. TEMPERATURES WILL WARM INTO THE MID 60S TO MID 70S TODAY BEFORE COOLER AIR ARRIVES. OVERNIGHT LOWS WILL FALL INTO THE LOW TO MID 40S. 14 THE COOLEST AIR OF THE SEASON WILL MOVE INTO THE REGION ON FRIDAY AND INTO THE WEEKEND BEHIND A DEPARTING TROUGH.
DEEP UPPER LOW WILL QUICKLY SWING A COLD FRONT THROUGH THE REGION THIS MORNING SPREADING SHOWERS ACROSS THE ENTIRE AREA AS IT RACES EASTWARD. THE FIRST TO CHANGE WILL BE THE HIGHEST RIDGE TOPS AND THEN THE FAR NORTH.
WINDS PICKED UP QUITE A BIT AHEAD OF THE APPROACHING COLD FRONT WHICH IS CURRENTLY JUST WEST OF THE CWA.
1030 AM EST THU NOV 12 2015 A COLD FRONT CROSSES THE LOCAL AREA THIS AFTERNOON. HIGH PRESSURE BUILDS ACROSS THE REGION TONIGHT THROUGH THE UPCOMING WEEKEND. THE HIGH WILL BE SLOW TO BUILD EAST THRU THE WEEKEND. SCNDRY TROF SWINGS ACROSS THE RGN FRI NITE / SAT WITH DECENT CAA BEHIND IT. UPR-LEVEL RIDGING DEVELOPS ALONG THE ERN SEABOARD ALLOWING FOR RISING TEMPS. LIGHT AND VARIABLE WINDS WILL INCREASE FROM THE SOUTH AND SOUTHWEST DURING THE LATE MORNING AND AFTN AHEAD OF A COLD FRONT.
1029 AM EST THU NOV 12 2015 LOW PRESSURE MOVING NORTHEAST THROUGH THE GREAT LAKES WILL LIFT A WARM FRONT TOWARD THE REGION TODAY WHICH WILL STALL SOUTH OF NEW ENGLAND BY THIS EVENING. A COLD FRONT WILL QUICKLY FOLLOW OVERNIGHT. LOW PRESSURE WILL MOVE EAST THROUGH SOUTHERN QUEBEC ON FRIDAY AND WILL DRIVE A SECONDARY COLD FRONT TOWARD THE REGION WHICH WILL CROSS THE REGION FRIDAY NIGHT.
A WEAK SHORT WAVE TROUGH WILL KEEP CLOUD COVER OVER THE AREA THROUGH MIDDAY.
537 AM CST THU NOV 12 2015 MAIN ISSUE TODAY WILL BE THE CONTINUED WIND ON THE BACKSIDE OF A LOW PRESSURE SYSTEM MOVING INTO THE GREAT LAKES. WITH THE WINDS REMAINING STRONGER ALONG THE BUFFALO RIDGE. WILL BE WARMER THERE BUT STILL LOOKS TO BE A HARD FREEZE ACROSS THE ENTIRE REGION TONIGHT WITH LOWS IN THE 20S.
DRY AND WARMER WEATHER IS EXPECTED FOR THE REST OF THIS WEEK. CHANCES FOR SHOWERS AND MUCH COOLER DAYTIME TEMPS WILL DEVELOP.
832 AM MST THU NOV 12 2015 15Z SURFACE ANALYSIS SHOWED TROUGH FROM NORTHWEST MN INTO WEST CENTRAL SD MOVING SOUTHEAST THROUGH CWA. FAST FLOW ALOFT WILL MIX DOWN BEHIND THE TROUGH. ANOTHER DEEP NE PAC UPPER TROUGH WILL DIG INTO WESTERN NOAM.
COLD FRONT NOW MOVING INTO MIDDLE TN AS INDICATED BY AREA OBS.
1011 AM EST THU NOV 12 2015 LOW PRESSURE MOVING ACROSS THE GREAT LAKES WILL PUSH A COLD FRONT THROUGH OUR AREA THIS AFTERNOON AND EVENING. WARM FRONT ALOFT IS FINISHING ITS PUSH THROUGH THE AREA. ON THE FRONT SIDE OF LARGE LOW PRESSURE SYSTEM.
641 AM EST THU NOV 12 2015 LOW PRESSURE MOVING ACROSS THE GREAT LAKES WILL PUSH A COLD FRONT THROUGH OUR AREA THIS AFTERNOON AND EVENING.
SKIES ARE PARTLY CLOUDY AND WILL SEE SOME JUST SOME PASSING HIGH CLOUDS OVER THE NEXT FEW DAYS AS A LARGE AREA OF HIGH PRESSURE SETTLES INTO THE MID MISSISSIPPI VALLEY TO MAKE FOR A NICE FALLISH WEEKEND JUST A BIT BELOW THE MID MONTH AVERAGE FOR NOVEMBER. THE RAIN CLOUDS WILL GATHER ONCE MORE FOR WHAT IS SURE TO BE SOME MUCH HIGHER TOTALS WITH AN OVERRUNNING EVENT ON THE ORDER OF DAYS AS ANOTHER COLD FRONT PLOWS INTO PUSH OUT THE HEAVY RAINFALL INTO MIDWEEK.
435 AM CST THU NOV 12 2015 LINE OF SHRA JUST AHEAD OF THE FRONT ALONG WITH THE COLD FRONT IT- SELF ARE BOTH CONTINUING TO MOVE SOUTH INTO THE GULF THIS MORNING. DESPITE THE WEAK RIDGING ALOFT. WE COULD BE RETAINING SOME MID/UPPER LEVEL HIGH CLOUDS THE REST OF THE WEEK GIVEN THE PERSISTENT TRAJECTORY OF THE SUB-TROPICAL JET. MODELS IN FAIRLY GOOD AGR- EEMENT WITH THE DEVELOPMENT OF A VERY DEEP/STRONG UPPER LOW ACROSS THE STATE FOR NEXT MON INTO TUES. COLD FRONT SHOULD COME OFF THE COAST AROUND 6-7 AM AND BOOST WINDS TO SCA. HIGH PRESSURE BUILDS OVER TX AND WINDS BECOME NORTHEAST.
THE LOWER LEVEL WINDS ARE MOSTLY WEST THEN NORTH ABOVE 500 MB 10Z.
621 AM EST THU NOV 12 2015 AN AREA OF SHOWERS AHEAD OF A COLD FRONT HAS MOVED EAST OF THE AREA THIS MORNING. THE COLD FRONT WILL CROSS EARLY THIS MORNING AND USHER IN STRONG WINDS. HIGH PRESSURE WILL BUILD OVER THE MIDWEST ON FRIDAY AS AN UPPER LEVEL TROUGH PASSES BY LATE FRIDAY. TRUE COLD FRONT IS CURRENTLY BISECTING INDIANA AND WILL TRAVERSE EAST THROUGH CWA IN THE 12-15Z TIME FRAME. WINDS WILL SHIFT WEST AND THEN THE HIGHER GUSTS WILL BEGIN TO AFFECT THE AREA. A SECONDARY UPPER LEVEL TROUGH WILL CROSS IN THE LATE DAY AND OVERNIGHT TEMPS WILL DROP TO THE FREEZING MARK FOR JUST ABOUT EVERYONE UNDER RAPIDLY CLEARING SKIES.
EARLY VISIBLE SATELLITE PHOTOGRAPHS SHOW PARTLY CLOUDY SKIES WITH TEMPERATURES IN THE LOWER TO 80S. AN ELONGATED AREA OF HIGH PRESSURE IS LOCATED OVER THE SUNSHINE STATE AND THE ADJACENT ATLANTIC AND GULF WATERS.
539 AM CST THU NOV 12 2015 AN INTENSE AREA OF LOW PRESSURE THAT WAS CENTERED EAST OF EAU CLAIRE WI EARLY THIS MORNING WILL CONTINUE TO MOVE NORTHEAST TODAY. DEBATED ON CANCELING THE HIGH WIND WARNING. BUT INCREASE ONCE AGAIN BY NOON AS THE COMBINATION OF STRONG LAPSE RATES IN THE LOWEST 1KM AND CAA CONTRIBUTE TO SFC WIND SPDS OF 25-35 MPH. AS THE AREA OF LOW PRESSURE CONTINUES TO MOVE OFF TO THE NE THIS MORNING.
405 AM CST THU NOV 12 2015 LATEST WATER VAPOR IMAGERY SHOWS THE STRONG UPPER CLOSED LOW MOVING INTO THE GREAT LAKES REGION. THE LOW ASSOCIATED WITH THE AFOREMENTIONED UPPER LOW WAS WELL NORTH OF THE AREA. WITH THE COLD FRONT MOVING INTO THE TN VALLEY. HIRES GUIDANCE CONTINUES THE WEAKENING TREND AS THE COLD FRONT MOVES THROUGH THE FORECAST AREA. AS HIGH PRESSURE BEGINS TO SETTLE INTO THE AREA.
THE COLD FRONT IS DRAPED ACROSS NORTHERN MISSISSIPPI. BIGGEST IMPACT WITH THIS FRONT IN TERMS OF SENSIBLE WEATHER WILL BE FAR COOLER TEMPERATURES THAN WHAT WE'VE EXPERIENCED AS OF LATE. OVERNIGHT LOWS WILL PLUMMET INTO THE LOW 40S TONIGHT IN THE INTERIOR AND UPPER 40S TO LOW 50S ALONG AND NEAR THE COAST.
511 AM CST THU NOV 12 2015 MUCH COOLER AND DRIER AIR HAS SETTLED IN FROM YESTERDAYS COLD FRONT PASSAGE, WITH FROST POSSIBLE FOR THE NEXT FEW HOURS UNTIL SUNRISE. WITH CLEAR NIGHT SKIES AND LIGHT TO CALM WINDS THURSDAY NIGHT/FRIDAY MORNING, STRONG RADIATIONAL COOLING WILL DROP TEMPS DOWN TO FREEZING ACROSS WESTERN AND NORTHERN OKLAHOMA, RESULTING IN THE FIRST WIDESPREAD FREEZE IN THAT AREA.
COLD FRONT HAS MOVED THROUGH THE AREA AND ITS MAINLY DRY AND NOT QUITE AS COLD AS PREVIOUSLY EXPECTED WITH TEMPERATURES ALONG THE HIGH-LINE IN THE 25 TO 30 RANGE. WEAK RIDGING/ZONAL FLOW ON SAT WILL TURN SW FOR SAT NIGHT AHEAD OF THE NEXT PACIFIC TROUGH. WIND CONCERNS WILL CONTINUE IN KLVM AND NYE WITH THE LEE TROUGH CONTINUING TO REINFORCE ITSELF. MODELS SHOWED THE PACIFIC TROUGH SPLITTING AS IT MOVES INTO THE REGION SUN THROUGH MON. THE 700 MB COLD FRONT WILL USHER PRECIPITATION CHANCES INTO MUCH OF THE AREA SUN NIGHT WITH PRECIPITATION TURNING TO A RAIN/SNOW MIX AS 850 MB COOLS TO BELOW ZERO DEGREES C.
407 AM CST THU NOV 12 2015 COLD FRONT NEARLY THROUGH THE CWA THIS HOUR WITH A FEW LINGERING SHOWERS ACROSS NORTHEAST MISSISSIPPI. THE LEADING EDGE OF A COOLER AND DRIER AIRMASS WILL SETTLE INTO THE MIDSOUTH THE NEXT 24 HOURS.
HIGH PRESSURE BUILDS WITH A MODEST WARMING TREND TODAY AND FRIDAY AFTERNOON.
LOWS WILL STILL FALL INTO THE LOWER 30S. WIND CHILLS WILL FALL INTO THE LOWER 20S FOR COLDEST NIGHT SO FAR THIS FALL SEASON. SFC TEMPS WILL RESPOND TO THE COOLER AIR ALOFT REACHING THE MIDDLE 40S IN THE NORTHERN DVN CWA TO NEAR 50 F FAR SOUTH.
A DRY COLD FRONT WILL ACROSS THE AREA TODAY. HIGH PRESSURE WILL BUILD TOWARD THE AREA FROM THE WEST FRIDAY INTO THE WEEKEND. TODAY: A DEEP STACKED LOW PRESSURE SYSTEM CURRENTLY LOCATED ACROSS THE UPPER MIDWEST THIS MORNING WILL CONTINUE TO LIFT EAST- NORTHEASTWARD INTO THE GREAT LAKES REGION TODAY. ATTENDANT TRAILING COLD FRONT WILL CROSS WEST TO EAST THROUGH THE AREA THIS AFTERNOON AND EVENING. LOW TEMPS RANGING FROM THE LOWER TO MID 40S ACROSS THE PIEDMONT TO MID TO UPPER 40S ELSEWHERE. A REINFORCING COLD FRONT WILL MOVE ACROSS CENTRAL NC ON FRIDAY AS A SECONDARY S/W TROUGH MOVES THROUGH THE L/W TROUGH ACROSS THE NORTHEAST U. CORE OF COLD AIR ASSOCIATED WITH THE L/W TROUGH ALONG THE EASTERN SEABOARD WILL BE IN OUR VICINITY AT THE START OF THE WEEKEND.
/ISSUED 345 AM CST THU NOV 12 2015/ The closed low that moved through the Central Plains yesterday continued to lift northeast into the Great Lakes region with the associated cold front through the Ohio River Valley into the Gulf Coast states early this morning.
410 AM CST THU NOV 12 2015 A THIN BAND OF SHOWERS AHEAD OF A COLD FRONT IS MOVING ACROSS NORTHWEST CENTRAL ALABAMA THIS MORNING. WITH AN AREA OF SCATTERED RAIN LAGGING ABOUT 1 HOUR BEHIND AND JUST AHEAD OF THE COLD FRONT. DRIER AIR WILL WORK IN FROM THE NORTHWEST AS HIGH PRESSURE BUILDS INTO THE SOUTHEASTERN CONUS. TEMPERATURES WILL WARM INTO THE MID 60S TO MID 70S TODAY BEFORE COOLER AIR ARRIVES. OVERNIGHT LOWS WILL FALL INTO THE LOW TO MID 40S. 14 THE COOLEST AIR OF THE SEASON WILL MOVE INTO THE REGION ON FRIDAY AND INTO THE WEEKEND BEHIND A DEPARTING TROUGH.
618 AM CST THU NOV 12 2015 FOR 12Z TAFS /ISSUED 405 AM CST THU NOV 12 2015/ LATEST WATER VAPOR IMAGERY SHOWS THE STRONG UPPER CLOSED LOW MOVING INTO THE GREAT LAKES REGION. THE LOW ASSOCIATED WITH THE AFOREMENTIONED UPPER LOW WAS WELL NORTH OF THE AREA. WITH THE COLD FRONT MOVING INTO THE TN VALLEY. HIRES GUIDANCE CONTINUES THE WEAKENING TREND AS THE COLD FRONT MOVES THROUGH THE FORECAST AREA. AS HIGH PRESSURE BEGINS TO SETTLE INTO THE AREA.
618 AM EST THU NOV 12 2015 A COLD FRONT CROSSES THE AREA TODAY. HIGH PRESSURE BUILDS ACROSS THE REGION TONIGHT THROUGH THE UPCOMING WEEKEND. LOW PRS MOVES ENE ACROSS THE GT LAKES RGN TODAY WITH ITS TRAILING COLD FRONT PROGGED TO CROSS THE FA THIS AFTRN BEFORE MOVING OFFSHORE THIS EVENING. THE HIGH WILL BE SLOW TO BUILD EAST THRU THE WEEKEND. SCNDRY TROF SWINGS ACROSS THE RGN FRI NITE / SAT WITH DECENT CAA BEHIND IT. UPR-LEVEL RIDGING DEVELOPS ALONG THE ERN SEABOARD ALLOWING FOR RISING TEMPS. LIGHT AND VARIABLE WINDS WILL INCREASE FROM THE SOUTH AND SOUTHWEST DURING THE LATE MORNING AND AFTN AHEAD OF A COLD FRONT.
947 AM EST THU NOV 12 2015 A COLD FRONT WILL CROSS THE REGION THIS AFTERNOON WITH GUSTY WINDS. COLD FRONT ADVANCING INTO EASTERN OHIO AND WILL ACCELERATE ACROSS REGION THIS AFTERNOON. MAINLY NORTHERN TIER AND RIDGES. THE FIRST TO CHANGE WILL BE THE HIGHEST RIDGE TOPS AND THEN THE FAR NORTH.
TEMPERATURES SHOULD BE ONLY A COUPLE OF DEGREES COOLER TODAY ALONG WITH LIGHT WINDS AND ALONG WITH MOSTLY CLEAR SKIES DURING THE DAY. RATHER ADEQUATE SFC RIDGING HAS SETTLED IN ACROSS THE REGION THIS MORNING. DURING WHICH TIME LOW AMPLITUDE UA RIDGING WILL BE PASSING OVERHEAD AND WEAK SFC LEE TROUGHING WILL PROMOTE THE RETURN OF SRLY SFC FLOW WITH MODEST AFTN BREEZES.
WINDS DECREASE OVERNIGHT AS HIGH PRESSURE MOVES INTO THE AREA.
ON SUN AND UPR TROF WL MOVE OVR THE WEST COAST WITH INCREASING SW FLOW ALOFT OVR THE FORECAST AREA BUT STILL DRY CONDITIONS. THE UPR TROF WL THEN MOVE FROM THE GREAT BASIN INTO WRN CO DURING THE DAY MON. WITH THE MTNS AND HIGH VALLEYS SEE THE HIGHEST CHANCES. TEMPS WL ALSO BE COOLER ON MON. THE GFS TRACKS THE LOW EASTWARD ALONG THE SRN CO BORDER MON NIGHT AND THEN MOVING INTO SWRN KS BY 00Z WED. BUT FOR NOW WL NOT STAY ON THE WARMER SIDE OF GUIDANCE.
Temperatures have already begun warming and will likely see readings at or above freezing in the next hour. /issued 331 AM CST THU NOV 12 2015/ Weak upper ridge over the area will result in mild wx for the region the next several days. An upper trough will develop along the CA Coast early Friday. As this trough moves east a chance of rain will return to the forecast.
SFC WINDS WILL PREVAIL N/NW FROM 5-10 KTS TODAY BEHIND THE RECENTLY DEPARTED COLD FRONT. SKIES ARE PARTLY CLOUDY AND WILL SEE SOME JUST SOME PASSING HIGH CLOUDS OVER THE NEXT FEW DAYS AS A LARGE AREA OF HIGH PRESSURE SETTLES INTO THE MID MISSISSIPPI VALLEY TO MAKE FOR A NICE FALLISH WEEKEND JUST A BIT BELOW THE MID MONTH AVERAGE FOR NOVEMBER. THE RAIN CLOUDS WILL GATHER ONCE MORE FOR WHAT IS SURE TO BE SOME MUCH HIGHER TOTALS WITH AN OVERRUNNING EVENT ON THE ORDER OF DAYS AS ANOTHER COLD FRONT PLOWS INTO PUSH OUT THE HEAVY RAINFALL INTO MIDWEEK.
A NE-SW ORIENTED COLD FRONT WAS ANALYZED OVER LOWER ACADIANA EARLY THIS MORNING. COOL AND DRY HIGH PRESSURE WILL BUILD INTO THE AREA BEHIND THE FRONT YIELDING A DRY WEATHER PATTERN THROUGH THE REMAINDER OF THE WEEK.
642 AM EST THU NOV 12 2015 A DRY COLD FRONT WITH LIMITED MOISTURE WILL CROSS THE AREA LATE THIS AFTERNOON.
Friday: Will continue to be very dry as the high center shifts east across southern MO and AR.
THERE ARE STRONG PRESSURE FALLS OF -5 IN 3 HOURS OVER THE EASTERN LAKE SUPERIOR AND ALMOST 3 HOUR 6 MB RISES BEHIND THE LOW OVER IOWA. ANOTHER SHOT OF UPPER LEVEL SUPPORT FOR MORE PRECIPITATION WILL ARRIVE WITH A STRONG SHORT WAVE TROUGH THAT WILL MOVE ACROSS MINNESOTA AND WISCONSIN THIS AFTERNOON AND TONIGHT. THE CHANGEOVER WILL OCCUR EARLIEST IN NORTHEAST MINNESOTA AS COLDER AIR DRAWS IN BEHIND THE LOW.
NUMEROUS WIND GUSTS OF 55 TO 60 MPH OVERNIGHT WITH THE HIGHEST GUSTS NEARLY COINCIDENT WITH THE STRONGEST PRESSURE GRADIENT WHICH WAS OVER 80 UBARS/KM AND IMMEDIATELY AHEAD OF THE PRESSURE RISE COUPLET. WILL KEEP THE HIGH WIND WARNING IN PLACE OVER THAT REGION WHILE DOWNGRADING EARLY TO AN ADVISORY SOUTH WHERE THE GUSTS HAVE DROPPED FURTHER. RIDGE OF HIGH PRESSURE WILL PASS ACROSS THE STATE FRIDAY AFTERNOON AND EVENING WITH WARM ADVECTION DEVELOPING FRIDAY NIGHT AS THE SYSTEM SHIFTS TO THE EAST. TONIGHT AND FRIDAY NIGHT WILL REPRESENT THE BEST CHANCES FOR DES MOINES TO REACH FREEZING FOR LOWS FOR THE FIRST TIME THIS SEASON BUT STILL NOT A CERTAINTY WITH WINDS HOLDING TEMPERATURES UP A BIT TONIGHT THEN WARM ADVECTION AFTER MIDNIGHT FRIDAY NIGHT.
COLD FRONT CONTINUES TO PUSH THROUGH SOUTHEASTERN PORTIONS OF THE AREA. BEHIND A COLD FRONT. SNOW IS EXPECTED TO CHANGE OVER TO RAIN THIS AFTERNOON ACROSS THE SOUTHERN JAMES VALLEY AS BOUNDARY LAYER TEMPERATURES RISE ABOVE FREEZING. DUE TO THE RAPID PROGRESSION OF PRECIPITATION AND THE LOW QPF NATURE OF THESE SHOWERS. UPPER RIDGE BUILDS IN BEHIND DEPARTING SYSTEM BRINGING WARMING TEMPERATURES AND DRY CONDITIONS THROUGH THE WEEKEND. NEXT TROUGH MOVES ONSHORE AND PUSHES EAST TO START THE UPCOMING WEEK.
641 AM CST THU NOV 12 2015 COLD FRONT CONTINUES TO PUSH THROUGH SOUTHEASTERN PORTIONS OF THE AREA. BEHIND A COLD FRONT. SNOW IS EXPECTED TO CHANGE OVER TO RAIN THIS AFTERNOON ACROSS THE SOUTHERN JAMES VALLEY AS BOUNDARY LAYER TEMPERATURES RISE ABOVE FREEZING. DUE TO THE RAPID PROGRESSION OF PRECIPITATION AND THE LOW QPF NATURE OF THESE SHOWERS. UPPER RIDGE BUILDS IN BEHIND DEPARTING SYSTEM BRINGING WARMING TEMPERATURES AND DRY CONDITIONS THROUGH THE WEEKEND. NEXT TROUGH MOVES ONSHORE AND PUSHES EAST TO START THE UPCOMING WEEK.
CONDITIONS SHOULD IMPROVE BY MID MORNING BUT A COLD FRONT MOVING INTO THE AREA WILL BRING OCCASIONAL MVFR CEILINGS FROM MID MORNING THROUGH THIS AFTERNOON ALONG WITH ISOLATED SHOWERS. THE COLD FRONT IS DRAPED ACROSS NORTHERN MISSISSIPPI. BIGGEST IMPACT WITH THIS FRONT IN TERMS OF SENSIBLE WEATHER WILL BE FAR COOLER TEMPERATURES THAN WHAT WE'VE EXPERIENCED AS OF LATE. OVERNIGHT LOWS WILL PLUMMET INTO THE LOW 40S TONIGHT IN THE INTERIOR AND UPPER 40S TO LOW 50S ALONG AND NEAR THE COAST.
COLD FRONT IS PUSHING ACROSS THE RIO GRANDE VALLEY THIS MORNING. WITH THE FRONT MOVING THROUGH THE LOWER VALLEY NEAR DAWN OR NOT LONG THEREAFTER. THEN BECOMING MORE SCATTERED AND CONCENTRATED OVER THE LOWER VALLEY THROUGH EARLY AFTERNOON. PATCHY LIGHT TO MDT FOG HAS SET UP ACROSS THE LOWER VALLEY. WITH COOLER AIR FILTERING IN BEHIND THE FRONT. WINDS WILL DIMINISH TONIGHT AS HIGH PRESSURE SETTLES OVER THE AREA. LOW TEMPS WILL RANGE FROM THE UPPER 50S OVER THE RANCHLANDS TO THE UPPER 60S NEAR THE COAST AND THE LOWER VALLEY. WINDS WILL SHIFT SLIGHTLY MORE TO NORTHEAST ON FRIDAY AS HIGH PRESSURE SHIFTS EAST. HIGH TEMPS WILL AGAIN FROM THE 60S OVER THE UPPER VALLEY TO THE MID 70S OVER THE LOWER VALLEY.
756 AM EST THU NOV 12 2015 A DRY COLD FRONT WITH LIMITED MOISTURE WILL CROSS THE AREA LATE THIS AFTERNOON.
A WEAK RIDGE WILL DRIFT ACROSS THE REGION AND A STORM SYSTEM DIRECTLY BEHIND IT WILL USHER CLOUDS INTO THE AREA THIS AFTERNOON. AFTN TEMPS TODAY ARE FORECAST TO BE AT OR SLIGHTLY ABOVE NORMAL WITH WARMER TEMPS EXPECTED ON FRIDAY AS SNOW LEVELS INCREASE ABOVE 5K FEET.
A FLATTENED UPPER RIDGE WILL BUILD ACROSS THE WRN HALF OF THE CONUS AS TROUGHING LINGERS ACROSS THE GREAT LAKES AND UPPER NEW ENGLAND REGIONS. UPPER LEVEL TROUGH DIGS INTO THE OHIO VALLEY ON FRIDAY AS A RIDGE BUILDS OVER THE CENTRAL PLAINS.
As a result, temperatures will be cooler, and winds will be much lighter today than yesterday, shifting from north/northeast to the east/southeast tonight.
CHATTANOOGA AIRPORT, TN 68 41 61 35 / 30 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 66 39 57 31 / 40 0 0 0 OAK RIDGE, TN 66 38 57 31 / 40 0 0 0 TRI CITIES AIRPORT, TN 66 37 54 29 / 60 0 0 0 TN.
1012 AM EST THU NOV 12 2015 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW STRONG LOW PRESSURE OVER THE GREAT LAKES WILL PRODUCE STRONG GRADIENT WINDS TODAY. THIS LOW PRESSURE SYSTEM WILL MOVE UP THE ST. BUT A LOW PRESSURE TROUGH WILL EXTEND BACK TOWARDS THE GREAT LAKES.
THIS IS DUE TO A RIDGE OF HIGH PRESSURE BUILDING OVER THE INTERIOR WEST.
A NEARLY VERTICALLY STACKED LOW PRESSURE SYSTEM WILL CONTINUE PRODUCING SHOWERS AND EMBEDDED THUNDERSTORMS OVER SOUTHEASTERN SOUTH DAKOTA THROUGH AT LEAST THURSDAY MORNING.
720 PM EDT WED SEP 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE NORTH COUNTRY WILL CONTINUE TO DOMINATE THE REGIONS WEATHER RIGHT THROUGH THE WEEKEND, WITH NO RAIN IN THE FORECAST.
737 PM EDT WED SEP 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE NORTH COUNTRY WILL CONTINUE TO DOMINATE THE REGIONS WEATHER RIGHT THROUGH THE WEEKEND, WITH NO RAIN IN THE FORECAST.
747 PM CDT WED SEP 23 2015 SKIES HAVE CLEARED OUT FOR THE MOST PART (LITTLE BLOB OF CIRRUS MOVING EASTWARD THROUGH THE AREA FOR THE NEXT COUPLE OF HOURS) AND TEMPERATURES SLOWLY FALLING FROM THE HIGHS IN THE LOW TO MID 90S AGAIN. HUFFMAN A DEEP LAYER HIGH PRESSURE RIDGE OVER CENTRAL AND EASTERN TEXAS WILL SLOWLY RECEDE AWAY FROM SOUTHEAST TEXAS OVER THE NEXT COUPLE OF DAYS. THIS WILL ALLOW FOR AN UPPER LOW PRESSURE TROUGH TO MOVE OVER THE FORECAST AREA OVER THE UPCOMING WEEKEND.
821 PM EDT WED SEP 23 2015 HIGH PRESSURE WILL REMAIN IN PLACE ACROSS THE REGION AT LEAST THROUGH THE WEEKEND RESULTING IN DRY WEATHER WITH SEASONABLY WARM AFTERNOONS AND COOL NIGHTS. HIGH PRESSURE WILL PRODUCE ANOTHER FAIR NIGHT ACROSS WESTERN AND NORTH-CENTRAL NEW YORK. HIGH PRESSURE WILL CONTINUE TO MAINTAIN ITS GRIP ON THE REGION THURSDAY WITH GENERALLY FAIR WEATHER EXPECTED. THE ONLY FLY IN THE OINTMENT WILL BE A WEAK BACKDOOR COLD FRONT THAT WILL SLIDE SOUTH ACROSS THE LOWER GREAT LAKES IN RESPONSE TO THE CENTER OF THE HIGH PRESSURE SYSTEM SHIFTING FROM NORTHERN ONTARIO INTO QUEBEC.
935 PM CDT WED SEP 23 2015 SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP AND PROPAGATE ALONG AN 850MB WARM FRONT NEAR THE CANADIAN BORDER IN NORTH DAKOTA. THE DRIVER FOR THIS APPEARS TO BE FOCUS FROM THE LOW LEVEL JET AND WARM ADVECTION. CONFIDENCE NOT HIGH IN EITHER AREA OR OTHER AREAS OF PCPN THAT MAY DEVELOP SO HAVE KEPT PCPN CHANCES ON THE LOW SIDE. SO AT THIS POINT ND POINTS IN THE FA SHOULD BE WARMER THAN THOSE IN MN.
/ISSUED 236 PM CDT WED SEP 23 2015/ TRANQUIL WEATHER MAY BE COMING TO AN END BY THE END OF THE WEEK AS AN UPPER LEVEL LOW PRESSURE SYSTEM. WILL RETROGRADE WESTWARD INTO THE LOWER MISSISSIPPI VALLEY. SATELLITE IMAGES ALREADY SHOWS A LITTLE MORE CU DEVELOPMENT ACROSS NORTHEAST MISSISSIPPI TODAY AHEAD OF THE APPROACHING LOW PRESSURE SYSTEM.
A TROUGH IN PLACE AT THE SURFACE AND ALOFT WILL KEEP RAIN CHANCES ON THE INCREASE.
Little change to the going weather situation is expected over the next 24 hours, with expansive surface ridging expected to remain in control over the region. Lows tonight should again dip into the upper 50s and lows 60s, though a few of the usual cool spots may fall into the low or mid 50s over the eastern Ozarks. Thursday should be all but identical today, with highs in the low 80s and partly to mostly sunny skies.
716 PM EDT WED SEP 23 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION FOR THE NEXT SEVERAL DAYS.
UPPER LOW BRINGS MOISTURE INTO THE AREA LATE THIS WEEK INTO THE WEEKEND. HIGH PRESSURE OVERHEAD WITH CLEAR SKIES AND CALM WINDS WILL AGAIN LEAD TO RIVER VALLEY FOG LATER TONIGHT. BUT IT MAY NOT BE AS INTENSE IN EXTENT AND DENSITY AS IT WAS THIS MORNING DUE TO THE WARMER TEMPERATURES TODAY AND LACK OF RESIDUAL MOISTURE. AND MODELS ARE STARTING TO TREND TOWARDS MOISTURE SPREADING INTO THE LOWLANDS. WITH CHANCE TO SLIGHT CHANCE ACROSS THE LOWLANDS. PARTICULARLY ACROSS THE LOWLANDS. DRY FORECAST WITH HIGH PRESSURE TO OUR NORTH.
WITH HIGH PRESSURE TO THE NORTH AND A WEAK LOW TO THE SOUTHEAST.
A BROAD/WEAK UPPER LOW POSITIONED OVER THE FLORIDA PANHANDLE WAS SENDING HIGH ALTITUDE MOISTURE NORTHWARD. THIS LOWERED BIGGER PICTURE LOW TEMPERATURES INTO THE LOWER 60S FOR OUR CENTRAL AREAS. 73 /ISSUED 238 PM CDT WED SEP 23 2015/ THE 19Z SURFACE ANALYSIS INDICATED THAT A BROAD AREA OF HIGH PRESSURE WAS RIDGING BACK SOUTHWEST INTO THE LOWER OHIO AND TENNESSEE VALLEY REGION. A WEAK UPPER LEVEL LOW WILL SLOWLY DEVELOP AND MOVE ACROSS SOUTHEAST ALABAMA/SOUTHERN GEORGIA FROM FLORIDA BY LATE THURSDAY.