Aikyam-Lab/Synoptic-Bench huggingface dataset:
/ISSUED 537 PM CST WED FEB 11 2015/ CLEAR SKIES TONIGHT AS A COLD FRONT PUSHES THRU DRG THE OVERNIGHT HOURS. WINDS WILL PICKUP TOMORROW BEHIND THE FRONT AS HIGH PRESSURE BUILDS IN. A WEAK RIDGE AT THE SURFACE IS SHIFTING SOUTH AND EAST WHILE A COLD FRONT QUICKLY SLIDES SOUTH ACROSS SOUTHERN AR AND NORTH TX. A COOLER AIR MASS WILL BEGIN TO ENTER THE REGION BY EARLY THU AS A DEEP UPPER TROUGH AND ASSOCIATED CANADIAN RIDGE MOVES INTO THE EASTERN HALF OF THE COUNTRY.
For the plains it looks like southwest winds will be slower to develop over the east slopes than was earlier anticipated so have extended areas of freezing fog for the rest of tonight and also added areas of freezing fog for Thursday morning for a portion of the northern zones bordering the Canadian border. Southwest winds are occurring over the Rocky Mountain Front and have removed the mention of freezing fog there for the rest of this evening.
COLD FRONT MOVED THROUGH OUR AREA OVERNIGHT WITH GUSTY NORTHWEST WINDS BRINGING MUCH COLDER AIR INTO THE PLAINS TODAY. THIS HIGH IS FORECAST TO SETTLE INTO NORTH DAKOTA LATER TONIGHT AND MOVE THROUGH IOWA ON THURSDAY.
142 AM EST THU FEB 12 2015 LOW PRESSURE WILL APPROACH FROM THE WEST TODAY WHILE A SECONDARY LOW DEVELOPS ALONG THE MID ATLANTIC COAST.
A dry cold front will move through early this morning bringing cooler, drier air. Expect mostly sunny skies today with highs in the low 60s for northwest portions of the CWA and mid to high 60s elsewhere.
Cold Arctic high pressure will build in behind this wave and this will keep temps around 15 degrees below normal across the whole area. With sun angle getting higher, and should be lots of sun this afternoon, and winds should be on the decrease; will follow closer to the warmer guidance, the MAV.
THE PATTERN ALOFT WILL FEATURE AN AMPLIFIED REGIME WITH UPPER RIDGING OVER THE ROCKIES. NORTHWEST FLOW ACROSS THE CENTRAL PLAINS AND A TROUGH ALONG THE EAST COAST.
STRONG SUBSIDENCE VIA COLD ADVECTION AND DAVA IN THE WAKE OF THE UPPER TROUGH WILL MAINTAIN MO CLEAR TO PTLY CLOUDY SKIES TODAY. THE RIDGE AXIS OF THE ARCTIC HIGH WILL SHIFT EWD ACROSS THE STATE WITH LGT SWLY WINDS DEVELOPING LATE ALONG WITH AN INCREASE IN MID TO HIGH CLOUDS VIA WARM ADVECTION.
/06Z TAF CYCLE/ VFR CONTINUES TO PREVAIL THIS EVENING ACROSS ALL SITES AS OF 12/05Z WITH NORTH WIND SHIFT FROM COLD FRONT JUST NOW STARTING TO AFFECT KAUS.
333 AM EST THU FEB 12 2015 A STRONG BUT DRY COLD FRONT WILL MOVE THROUGH THE FORECAST AREA TODAY.
1157 PM CST Wed Feb 11 2015 Cold front has pushed through the area today and a lower cloud bank has been trailing behind the front into southern Missouri. Temperatures ranging from mid to upper 30s in central MO to the low 50s over south central MO. Upper level wave was located from northern MN into Manitoba and is expected to carve out a deep trough over the eastern U.
MAINLY FOR HOURLY TRENDS AS THE LEAD COLD FRONT HAS TRIGGERED SNOW SHOWERS AND VEERED THE WIND TO THE WEST. THE WINTER WEATHER ADVISORY FOR THE RIDGES HAS BEEN MAINTAINED WITH MENTION OF BLOWING SNOW. SNOW SQUALLS WILL LIKELY IMPACT AREAS OUTSIDE THE RIDGES PERIODICALLY UNTIL AFOREMENTIONED LIMITATIONS DOMINATE. MOISTURE AND HEAT FLUX FROM THE GREAT LAKES AGGREGATE WILL ONCE AGAIN DRIVE CONVECTIVE SNOW SHOWERS ALONG AND BEHIND THE COLD FRONT. GOOD CRYSTAL GROWTH SHOULD ONCE AGAIN BE REALIZED IN SNOW SQUALLS THAT DEVELOP BEHIND THE COLD FRONT. WIND CHILL VALUES WILL BE BELOW -10F ALMOST EVERYWHERE AND MAY PUSH -25F IN THE HIGHER ELEVATIONS OF THE EAST.
A COLD FRONT CURRENTLY POSITIONED OVER CENTRAL TEXAS WILL MOVE TOWARDS SOUTH TEXAS TONIGHT. BEFORE CLEARING AS THE COLD FRONT BRINGS DRIER AIR INTO THE REGION. AFTERNOON TEMPERATURES ON THURSDAY WILL BE AROUND 10 TO 15 DEGREES COOLER THAN TODAY. WITH LOWS IN THE LOWER TO MID 50S.
WITH TROUGHING EXTENDING INTO THE REGION. WITH A TRAILING COLD FRONT PUSHING DOWN TO THE LAKE REGION BY 00Z THIS EVENING. LIGHT WINDS THIS MORNING WILL SHIFT TO THE WEST AHEAD OF THE COLD FRONT. THE COLD FRONT WILL PUSH THROUGH THE REGION THIS EVENING.
A BACKDOOR COLD FRONT WILL APPROACH HALF OF THE FORECAST AREA BY MORNING AND THEN STALL OUT. THIS BOUNDARY WILL RETURN NORTH AS A WARM FRONT THROUGH THE DAY. FARTHER EAST WILL BE INFLUENCED MORE BY THE COLD HIGH PRESSURE CENTER LOCATED ACROSS THE MIDWEST AND SHOULD SEE HIGHS ONLY TOPPING OUT TO THE LOWER 40S. HAVE GONE WITH SLIGHTLY COOLER LOWS AS INDICATED BY THE NAM.
/ISSUED 344 PM CST WED FEB 11 2015/ A COLD FRONT THAT PASSED THROUGH THE REGION EARLY THIS MORNING CONTINUES TO PROVIDE BORDERLINE ADVISORY WINDS. OVERNIGHT LOWS ARE EXPECTED TO DIP BELOW FREEZING TONIGHT FOR MUCH OF THE FA AS CAA CONTINUES TO FUNNEL IN FROM THE NORTH. CLOUD COVER SHOULD DECREASE FROM NORTH TO SOUTH OVERNIGHT AS THE UPPER LEVEL LOW TO OUR NORTHWEST PUSHES SOUTHWARD.
THE ADVERTISED UPPER TROUGH IS BUILDING SOUTHEAST OUT OF THE GREAT LAKES THIS MORNING AND WILL BE MOVING ACROSS THE FORECAST AREA TODAY. A HEALTHY NORTHWEST FLOW WILL PRODUCE OROGRAPHIC LIFT ACROSS THE HIGHER TERRAIN AND DUE TO THE RATHER COLD TEMPERATURES ALOFT.
254 AM MST THU FEB 12 2015 LATEST UPPER AIR ANALYSIS INDICATES THE UPPER TROUGH OVER THE GREAT LAKES AND THE RIDGE OVER THE WEST COAST HAVE CHANGED LITTLE. SATELLITE IMAGERY INDICATES MOISTURE ADVECTION OVER THE PACIFIC NORTHWEST MOVING AROUND THE RIDGE WHICH WILL EVENTUALLY MOVER OVER THE PLAINS. AT THE SURFACE A BACKDOOR COLD FRONT WAS MOVING INTO THE AREA. LOW CLOUDS WERE MOVING IN BEHIND THE COLD FRONT. THIS MORNING THE COLD FRONT WILL MOVE TO THE KS/CO BORDER THEN TURN INTO A WARM FRONT AND PUSH BACK EAST ACROSS THE REST OF THE AREA. WEST OF THE FRONT TEMPERATURES WILL BE MUCH WARMER THAN YESTERDAY AND SOUTH WINDS WILL BE BREEZY WITH GUSTS UP TO 30 MPH. WITH A WARMER AIR MASS IN PLACE LOWS WILL BE WARMER THAN LAST NIGHT.
THIS EVENING THROUGH THURSDAY NIGHT UPPER LEVEL ANALYSIS HAS RIDGE BUILDING OVER THE WESTERN CONUS AS TROF DIGS ACROSS THE EASTERN CONUS. HIGH PRESSURE IS MOVING INTO NORTH DAKOTA WITH LIGHT NORTH WINDS ACROSS THE AREA. HELPING PUSH COLD AIR EASTWARD AND ALLOW WARMER AIR TO RETURN TO THE AREA.
TEMPS BY THURS MORNING ARE EXPECTED TO BE SIMILAR OR A FEW DEGREES WARMER THAN LAST NIGHT.
THE SOUTH CENTRAL FROM BISMARCK TO LINTON HAS BEEN A BIT WARMER.
GUSTING TO ABOVE 20 KTS THROUGH THE MORNING AS AN ARCTIC HIGH PRESSURE AREA SLIDES TOWARD THE PAH FORECAST AREA. THE CENTER OF HIGH PRESSURE WILL BE OVER THE REGION BY ABOUT MIDNIGHT THU NIGHT. MOSTLY CLEAR SKIES SHOULD RETURN FRI AS LOW LEVEL WINDS TAKE ON A MORE SRLY COMPONENT AHEAD OF THE NEXT COLD FRONT. AFTERNOON TEMPS SHOULD REBOUND TO MOSTLY ABOVE FREEZING.
THE FORECAST FOR TONIGHT APPEARS TO BE ON TRACK, WITH HIGH PRESSURE KEEPING MUCH THE AREA CLEAR OF ALL BUT HIGH LEVEL CLOUDS. THE WORST AND LONGEST LASTING CONDITIONS ARE MOST LIKELY TO BE IN THE UMPQUA VALLEY AND IN THE LOWER ROGUE VALLEY NEAR GRANTS PASS.
A DRY COLD FRONT MOVING THROUGH TENNESSEE WILL PUSH INTO NW GA JUST BEFORE DAYBREAK.
SHORT WAVE TROUGH BUILDS ACROSS THE SOUTHERN APPALACHIAN REGION TODAY BRINGING A PERIOD OF MVFR CEILINGS FROM AROUND 10Z-20Z.
257 AM MST THU FEB 12 2015 LATEST UPPER AIR ANALYSIS INDICATES THE UPPER TROUGH OVER THE GREAT LAKES AND THE RIDGE OVER THE WEST COAST HAVE CHANGED LITTLE. SATELLITE IMAGERY INDICATES MOISTURE ADVECTION OVER THE PACIFIC NORTHWEST MOVING AROUND THE RIDGE WHICH WILL EVENTUALLY MOVER OVER THE PLAINS. AT THE SURFACE A BACKDOOR COLD FRONT WAS MOVING INTO THE AREA. LOW CLOUDS WERE MOVING IN BEHIND THE COLD FRONT. THIS MORNING THE COLD FRONT WILL MOVE TO THE KS/CO BORDER THEN TURN INTO A WARM FRONT AND PUSH BACK EAST ACROSS THE REST OF THE AREA. WEST OF THE FRONT TEMPERATURES WILL BE MUCH WARMER THAN YESTERDAY AND SOUTH WINDS WILL BE BREEZY WITH GUSTS UP TO 30 MPH. WITH A WARMER AIR MASS IN PLACE LOWS WILL BE WARMER THAN LAST NIGHT.
AN ARCTIC HIGH PRESSURE WILL CONTINUE ITS SOUTHEAST TREK ACROSS THE NORTHERN PLAINS TONIGHT. THE CENTER OF THE HIGH PRESSURE WILL PASS THROUGH THE FAR NORTHEAST PORTIONS OF THE FORECAST AREA. A LOW PRESSURE AREA MOVES OFF THE DIVIDE AND INTO THE NEBRASKA PANHANDLE. CONTINUED CLOUDINESS AND COLD AIR ALOFT WILL KEEP NORTH CENTRAL NEBRASKA MUCH COOLER WITH MAX TEMPS NEAR FREEZING.
106 AM CST THU FEB 12 2015 AN ARCTIC HIGH PRESSURE WAS SURGING INTO THE NORTHERN PLAINS THIS AFTERNOON. A RIGOROUS H5 TROF AND VORT MAX IS PROGGED TO MOVE THROUGH WI AND IL TONIGHT. COLD AIR ASSOCIATED WITH HIGH PRESSURE WILL ALREADY BE IN PLACE ACROSS THE AREA. HIGH PRESSURE CONTINUES TO BUILD INTO THE AREA.
A STRONG COLD FRONT WAS LOCATED BETWEEN CKV AND BNA AT 05Z, AND WAS CONTINUING TO SURGE SOUTHWARD.
A NORTH TO NORTHWESTERLY ALOFT WILL BE OVER THE REGION AHEAD OF AN UPPER LEVEL RIDGE BUILDING IN FROM THE WEST. IT WILL BE DRY IN THE LOWER LEVELS BUT SOME MID LEVEL CLOUDINESS MAY LINGER OVER THE CWFA THROUGH THE DAY.
335 AM CST Thu Feb 12 2015 Incoming cold front has made for a brisk and cold night across eastern Kansas tonight, along with a band of clouds and some light flurries.
1123 PM CST WED FEB 11 2015 VFR CONDITIONS TO PREVAIL THROUGH THE TERMINAL FORECAST PERIOD AS HIGH PRESSURE CONTINUES TO BUILD AREAWIDE.
IN THE WAKE OF A STRONG COLD FRONTAL PASSAGE ON WEDNESDAY, STRONG COLD AIR ADVECTION BUILDING SOUTHEASTWARD ALONG WITH ARCTIC HIGH PRESSURE WILL KEEP TEMPERATURES FROM MAKING IT OUT OF THE 20S TODAY. TONIGHT THE HIGH WILL SLIDE OFF TO THE SOUTH AND EAST OF OUR REGION.
227 AM CST THU FEB 12 2015 HIGH PRESSURE WILL CONTINUE TO NOSE SOUTHWARD INTO THE MISSOURI VALLEY TODAY WITH A COLD NORTHERLY WIND.
RIDGE AXIS MOVES EAST BY FRI WITH DOWNSLOPE FLOW. TIMING OF COLD FRONT ON SAT REMAINS A CHALLENGE. HIGHS ON TUE COULD BE SEVERAL DEGREES COOLER THAN CURRENTLY FORECAST. NLY WINDS 5KTS OR LESS WILL BECOME NELY AND INCREASE ACRS TO 13-17KTS/15-20MPH SUSTAINED DUE TO REINFORCEMENT INDUCED BY INCREASED INFLUENCE OF APPROACHING INVERTED RIDGE AXIS.
SKIES HAVE CLEARED OUT IN THE WAKE OF A COLD FRONT THAT MOVED THROUGH THE REGION EARLIER TODAY. A VIGOROUS MID LEVEL TROUGH CURRENTLY ALONG THE SOUTHERN MANITOBA/ONTARIO PROVINCE LINE WILL DROP SOUTH THROUGH THE REGION THIS EVENING. WITH THE COLD FRONT/SURGE.
A REINFORCING SHOT OF COOLER AIR WILL BRUSH THE AREA OVERNIGHT. ELEVATED FIRE WEATHER CONDITIONS WILL DEVELOP IN THE WARMER AREAS WHERE RH WILL DIP INTO THE LOWER 20S AND WINDS WILL GUST UP TO 30KTS.
245 AM MST THU FEB 12 2015 A HIGH PRESSURE SYSTEM WILL SLOWLY BUILD OVER THE REGION THROUGH THE WEEKEND.
/ISSUED 811 PM CST WED FEB 11 2015/ FIRST COLD FRONT HAS PUSHED THROUGH THE AREA. A REINFORCING COLD FRONT WILL MOVE THROUGH EARLY THURSDAY MORNING WITH A NOTICEABLE UPTICK IN NORTHERLY WINDS AND PERHAPS ANOTHER BAND OF POST FRONTAL LOW CLOUDS. A COLD FRONT HAS PUSHED ACROSS THE MIDSOUTH. LOWS TONIGHT WILL BE IN THE UPPER 20S TO LOW 30S FOR MOST OF THE MIDSOUTH WITH HIGHS TOMORROW ONLY 5-10 DEGREES WARMER.
CLOUDS ARE STARTING TO THIN ACROSS MUCH OF THE AREA AS UPPER RIDGING BUILDS INTO THE REGION. ALL OF THIS SATURATION SHOULD BE WARMER THAN -10C GIVEN THERMAL PROFILES. AND WITH SUB- FREEZING SURFACE TEMPERATURES WE CANNOT ENTIRELY RULE OUT SOME FREEZING DRIZZLE. WARMER FOR THU AS LOW-LEVEL DOWNSLOPE FLOW RETURNS TO AREAS EAST OF THE LARAMIE RANGE. DRY NW FLOW ALOFT CONTINUES INTO FRI ON THE EAST SIDE OF THE RIDGE. 12Z MEDIUM RANGE MODELS ARE IN GOOD AGREEMENT PROGGING THE UPPER RIDGE PATTERN TO DEAMPLIFY AS TROUGHING TAKES SHAPE OVER THE NORTHERN ROCKIES.
339 AM CST THU FEB 12 2015 COLD FRONT HAS PUSHED WELL SOUTH OF THE AREA THIS MORNING WITH TEMPERATURES NOW IN THE UPPER 20S AND 30S AREAWIDE.
HIGH PRESSURE CONTINUES TO BUILD INTO WESTERN KANSAS THIS AFTERNOON BEHIND A COLD FRONT THAT PUSH THROUGH OVERNIGHT. DRIER AIR WAS PUSHING INTO THE AREA WHICH HAD ERODED THE LOW CLOUD LAYER FROM EARLIER THIS MORNING. WITH HIGH PRESSURE SETTLING INTO SOUTHWEST KANSAS, WINDS SHOULD GO LIGHT AND VARIABLE TONIGHT INTO THURSDAY MORNING. A WARM FRONT WILL PUSH OUT ACROSS WESTERN KANSAS.
937 PM MST WED FEB 11 2015 AVIATION SECTION UPDATED ISOLATED SHOWERS AND SLIGHTLY ELEVATED CLOUD TOPS ARE QUICKLY MOVING SOUTH INTO NEW MEXICO AS THE UPPER LEVEL TROUGH EXITS SOUTH OUT OF THE FORECAST AREA. HIGH PRESSURE WILL GRADUALLY BUILD EAST INTO THE REGION OVER THE NEXT COUPLE OF DAYS. WEAK NORTHWEST FLOW WILL KEEP TEMPERATURES COOLER THAN THEY HAVE BEEN.
1001 PM CST WED FEB 11 2015 COLD FRONT CONTINUES TO MAKE STEADY PROGRESS ACROSS THE REGION TONIGHT. /ISSUED 515 PM CST WED FEB 11 2015/ VFR CONDITIONS TO PREVAIL THROUGH THE TERMINAL FORECAST PERIOD AS HIGH PRESSURE CONTINUES TO BUILD AREAWIDE.
254 AM CST THU FEB 12 2015 AN UPPER LOW THAT HAS BEEN MOVING SOUTH OR SOUTH SOUTHWEST OVER WESTERN NEW MEXICO DURING THE LAST 24 HOURS HAS MOVED INTO THE NORTHWESTERN PART OF THE MEXICAN STATE OF CHIHUAHUA SOUTH OF DOUGLAS ARIZONA AS OF 2 AM. THE LOW WILL MOVE SOUTHWEST INTO SOUTHERN SONORA TODAY AND THEN WEST ACROSS BAJA CALIFORNIA TONIGHT.
THE COLD FRONT HAS CLEARED THE AREA AS OF 03Z. STUMPF THE MAIN ISSUE IN THE NEAR TERM IS THE ARRIVAL OF THE LOWER CIGS OF AROUND 2000FT. WIND GUSTS TAPER OFF THURSDAY EVENING AS HIGH PRESSURE MOVES OVER THE AREA.
LAKE EFFECT SNOW SHOWERS ARE CRANKING UP OVER VILAS COUNTY AS ENHANCEMENT OCCURS WITH THE UPPER TROF PASSAGE.
HAVE INCREASED CLOUD COVER A BIT ACROSS THE NORTHERN AND NORTHEAST COUNTIES JUST BEFORE SUNRISE THURSDAY TO TAKE INTO ACCOUNT THE STRATUS DECK THAT HAS FORMED BEHIND THE COLD FRONT ACROSS CENTRAL TENNESSEE.
344 AM EST THU FEB 12 2015 A STRONG BUT DRY COLD FRONT WILL MOVE THROUGH THE FORECAST AREA TODAY.
1138 PM CST WED FEB 11 2015 SOME FOG HAS DEVELOPED OVER BPT AND LCH THIS EVE AHEAD OF A COLD FRONT THAT IS PROJECTED TO MAKE THE COAST AROUND SUNRISE. /ISSUED 537 PM CST WED FEB 11 2015/ CLEAR SKIES TONIGHT AS A COLD FRONT PUSHES THRU DRG THE OVERNIGHT HOURS. WINDS WILL PICKUP TOMORROW BEHIND THE FRONT AS HIGH PRESSURE BUILDS IN. A WEAK RIDGE AT THE SURFACE IS SHIFTING SOUTH AND EAST WHILE A COLD FRONT QUICKLY SLIDES SOUTH ACROSS SOUTHERN AR AND NORTH TX. A COOLER AIR MASS WILL BEGIN TO ENTER THE REGION BY EARLY THU AS A DEEP UPPER TROUGH AND ASSOCIATED CANADIAN RIDGE MOVES INTO THE EASTERN HALF OF THE COUNTRY.
722 PM EST SAT JAN 17 2015 HIGH PRESSURE OVER THE REGION WILL MOVE OFFSHORE THIS AFTERNOON. AN UPPER LEVEL DISTURBANCE AND COLD FRONT CROSSING THE AREA TONIGHT INTO SUNDAY WILL BRING ANOTHER CHANCE FOR SHOWERS. HIGH PRESSURE CONTINUES TO MOVE NORTHEASTWARD AWAY FROM THE REGION AS MOISTURE MOVES INTO THE COASTAL COUNTIES. WEAK LOW PRESSURE WILL CONTINUE TO DEVELOP AND HAS BEGUN MOVING NORTHWARD UP THE COAST. THE MAIN UPPER TROUGH WILL CONTINUE TO DEEPEN AND MOVE THROUGH THE REGION DURING THE DAY.
JET WILL SHIFT SLIGHTLY EAST TONIGHT AND STRENGTHEN AS UPPER LEVEL RIDGE OVER THE ROCKIES SHIFTS EAST. DEEPENING MID LEVEL TROUGH CLEARS FA TO THE EAST TONIGHT.
543 PM CST SAT JAN 17 2015 UPPER LEVEL PV ANOMALY PASSING ACROSS EASTERN NEBRASKA AND WEST CENTRAL IOWA WITH SUBSIDENCE REGION OF THE SYSTEM JUST SOUTH OF THE REGION AND THAT HAS BEEN THE AREA WITH THE HIGHEST WIND GUSTS TODAY.
Precipitation could be rain or snow or freezing rain or a mix of these types of precipitation. For this latter area precipitation should be either rain or snow with just a small threat for freezing precipitation.
404 PM CST SAT JAN 17 2015 TODAY TEMPS MANAGED TO CLIMB THE LOW TO MID 60S ON SOUTH WINDS AND CLEAR SKIES. A COLD FRONT MOVING THROUGH CENTRAL TEXAS THIS AFTERNOON IS EXPECTED TO PUSH THROUGH DURING THE OVERNIGHT HOURS.
SOME WARM AIR ALOFT HAS BEEN ADVANCING OVER FREEZING SURFACE TEMPERATURES. SO FAR PRECIPITATION APPEARS TO BE SNOW WITH A GRADUAL CHANGE TO RAIN AS SURFACE TEMPERATURES WARM NEAR OR ABOVE FREEZING. ADDED WORDING TO THE FORECAST FOR A CHANCE OF FREEZING RAIN THIS EVENING.
A DRY COLD FRONT WILL MOVE THROUGH SUNDAY WITH GUSTY WNW FLOW EXPECTED IN ITS WAKE THROUGH THE AFTERNOON HOURS. /ISSUED 305 PM EST SAT JAN 17 2015/ A QUICK RETURN TO EASTERLY FLOW TODAY HAS ALLOWED TEMPERATURES TO WARM IN THE LOW/MID 70S THIS AFTERNOON. HIGH PRESSURE ALONG THE EASTERN SEABOARD WILL MOVE EASTWARD TONIGHT AS A TROUGH MOVES INTO THE OHIO VALLEY. A TROUGH ACROSS THE OHIO VALLEY SUNDAY MORNING WILL PUSH EASTWARD. AND AN INVERTED TROUGH OVER FLORIDA WILL PUSH SOUTHWARD AS A COLD FRONT. THE COLD FRONT WILL PUSH THROUGH SOUTH FLORIDA SUNDAY AFTERNOON. HIGHS WILL REACH THE LOWER 70S NORTHWEST AND GULF COAST TO THE UPPER 70S SOUTHEAST.
856 PM CST SAT JAN 17 2015 THE DRY COLD FRONT IS SAGGING THROUGH CENTRAL ARKANSAS CURRENTLY. A DRY COLD FRONT PASSING FROM NORTHWEST TO SOUTHEAST THROUGH THE AREA OVERNIGHT WILL BE ACCOMPANIED BY A BAND OF LOWER CLOUDS - RESULTING IN A FEW HOURS OF CIGS MOSTLY IN THE 2000-4000 FT RANGE IN ROUGHLY THE 06-10Z TIME FRAME. AN UPPER LEVEL TROUGH WILL BRING A DRY COLD FRONT THROUGH THE REGION LATER TONIGHT.
Snow will transition to rain overnight across the lower valleys, as snow levels rise with a period of light freezing drizzle/rain possible as surface temperatures will be slow to warm. The greatest threat for light freezing rain will be across the lower valleys of Northwest Montana but the possibility will exist for the Missoula and Bitterroot valleys, along with the Salmon area. if KGPI cannot warm to above freezing this evening, there may be a period of freezing rain overnight, starting around 18/0600Z. A MIX OF SNOW AND FREEZING RAIN TO IMPACT MOUNTAIN PASSES AND. Northwest Montana valleys will continue to have a particularly difficult time of warming above freezing ahead of the moisture swath. Consequently, the relatively warm moisture aloft will fall as snow and freezing rain at valley elevations of northwest Montana.
645 PM EST SAT JAN 17 2015 AVIATION LOW PRESSURE OVER NORTHERN LAKE SUPERIOR WILL MOVE SLOWLY SOUTHEAST TONIGHT AND SUNDAY. DESPITE THE PASSAGE OF A COLD FRONT TONIGHT. WILL THEREFORE BE FORECASTING A MIXTURE OF LIGHT RAIN AND SNOW IN THE LOW LEVEL MOIST CYCLONIC FLOW PATTERN LATE TONIGHT AND SUNDAY WITH LITTLE TO NO ACCUMULATION. THE EXCEPTION WILL BE NEAR AND NORTH OF ABOUT M-46 WHERE COOLER TEMPS SUPPORT MAINLY ALL SNOW. ESPECIALLY IN THE HIGHER ELEVATIONS NEAR AND NORTH OF U. ANOTHER SFC FRONT/TROUGH DROPS SOUTH THROUGH THE AREA ON SUNDAY NIGHT SHIFTING WINDS TO THE NORTH.
920 PM EST SAT JAN 17 2015 UPDATE LOW PRESSURE OVER NORTHERN LAKE SUPERIOR WILL MOVE SLOWLY SOUTHEAST TONIGHT AND SUNDAY. DESPITE THE PASSAGE OF A COLD FRONT TONIGHT. WILL THEREFORE BE FORECASTING A MIXTURE OF LIGHT RAIN AND SNOW IN THE LOW LEVEL MOIST CYCLONIC FLOW PATTERN LATE TONIGHT AND SUNDAY WITH LITTLE TO NO ACCUMULATION. THE EXCEPTION WILL BE NEAR AND NORTH OF ABOUT M-46 WHERE COOLER TEMPS SUPPORT MAINLY ALL SNOW. ESPECIALLY IN THE HIGHER ELEVATIONS NEAR AND NORTH OF U. ANOTHER SFC FRONT/TROUGH DROPS SOUTH THROUGH THE AREA ON SUNDAY NIGHT SHIFTING WINDS TO THE NORTH.
THE WARMER VALUES REFLECT WELL-MIXED AIR BEHIND THE WARM FRONT. THE COLDER VALUES ARE IN THE WIND-PROTECTED VALLEYS AND IN ERN-MOST IDAHO ZONES STILL AHEAD OF THE WARM FRONT. AND PROBABLY LIGHT FREEZING RAIN IN THE COLDER VALLEYS ALTHOUGH WE HAVE NO ACTUAL REPORTS OF IT.
WEAK COLD FRONT SAGGING THROUGH AR AND CURRENTLY CLOSE TO KLIT. /ISSUED 522 PM CST SAT JAN 17 2015/ CURRENTLY SEEING A COLD FRONT MOVE THROUGH THE STATE WHICH IS LOCATED JUST WEST OF KHOT AND KLIT.
830 PM EST SAT JAN 17 2015 HIGH PRESSURE OVER THE REGION WILL MOVE OFFSHORE THIS AFTERNOON. AN UPPER LEVEL DISTURBANCE AND COLD FRONT CROSSING THE AREA TONIGHT INTO SUNDAY WILL BRING ANOTHER CHANCE FOR SHOWERS. HIGH PRESSURE CONTINUES TO MOVE NORTHEASTWARD AWAY FROM THE REGION AS MOISTURE MOVES INTO THE COASTAL COUNTIES. WEAK LOW PRESSURE WILL CONTINUE TO DEVELOP AND HAS BEGUN MOVING NORTHWARD UP THE COAST. THE MAIN UPPER TROUGH WILL CONTINUE TO DEEPEN AND MOVE THROUGH THE REGION DURING THE DAY. LAKE WATER COOL IN THE LOW TO MID 50S BUT WITH WEST WINDS AROUND 20 KTS WITH A FEW GUSTS POSSIBLY NEAR 30KTS NEAR SHORE.
825 PM EST SAT JAN 17 2015 COASTAL TROF REMAINS OVER THE COASTAL WATERS WITH A FEW LIGHT SHOWERS AND WILL TEND TO MOVE SLOWLY AWAY FROM THE COASTAL COUNTIES AFTER MIDNIGHT. COASTAL TROF WILL SLOWLY BREAK DOWN AS IT DRIFTS OFF TOWARDS THE NORTHEAST AND EXPECT NORTHEAST FLOW TO WEAKEN AND BECOME SOUTHWEST AFTER MIDNIGHT.
LOWS ARE GOING TO RANGE FROM THE LOWER 30S TO LOWER 40S BUT MAY OCCUR AT DIFFERENT TIMES.
544 PM CST Sat Jan 17 2015 A cold front has pushed through the forecast area early this afternoon.
652 PM EST SAT JAN 17 2015 A COLD FRONT WILL MOVE INTO THE REGION TONIGHT AND PASS OFF TO THE EAST EARLY SUNDAY.
933 PM EST SAT JAN 17 2015 A COLD FRONT OVER THE PLAINS WILL MOVE ACROSS THE AREA SUNDAY MORNING.
VERY LITTLE SURFACE MOISTURE IS ASSOCIATED WITH THIS COLD FRONT.
/ISSUED 317 PM CST SAT JAN 17 2015/ A COLD FRONT IS MOVING THROUGH THE REGION THIS AFTERNOON BUT TEMPERATURES CONTINUE TO RISE BEHIND THIS FRONT.
A DRY COLD FRONT WILL MOVE ACROSS THE AREA AFTER MIDNIGHT. /ISSUED 404 PM CST SAT JAN 17 2015/ TODAY TEMPS MANAGED TO CLIMB THE LOW TO MID 60S ON SOUTH WINDS AND CLEAR SKIES. A COLD FRONT MOVING THROUGH CENTRAL TEXAS THIS AFTERNOON IS EXPECTED TO PUSH THROUGH DURING THE OVERNIGHT HOURS.
659 PM EST SAT JAN 17 2015 A COLD FRONT OVER THE PLAINS WILL MOVE ACROSS THE AREA SUNDAY MORNING.
/ISSUED 225 PM EST SAT JAN 17 2015/ MAIN FOCUS ON SHORT TERM WILL BE WITH ANY PRECIP CHANCES ACROSS NORTH GEORGIA LATE TONIGHT INTO SUNDAY MORNING WITH AN APPROACHING UPPER TROUGH AND TRANSLATED SFC COLD FRONT. GENERAL CONSENSUS OF GUIDANCE INDICATES THAT WHILE THE TROUGH AMPLIFIES AND DIGS SOUTHWARD. PROGGED THERMAL PROFILES HAVE SOME DISCREPANCIES WITH THE WARMER NAM INDICATING MAINLY A LIGHT RAIN. SFC TEMPS WERE MAINLY ABOVE FREEZING FOR OVERNIGHT LOWS TONIGHT THOUGH SOME SPOTTY 31-32 DEG ARE POSSIBLE IN THE NE.
A WARM FRONT CONTINUES TO MOVE ACROSS THE FORECAST AREA THIS EVENING PRODUCING RAIN ACROSS MOST OF THE FORECAST AREA. THE WARM FRONT WILL LIFT TO THE NORTH OVERNIGHT WITH DECREASING PRECIPITATION AND INCREASING SOUTHERLY WINDS. THEN A COLD FRONT WILL SWEEP THROUGH THE FORECAST AREA EARLY SUNDAY SWITCHING WINDS TO WESTERLY AND END PRECIPITATION FOR ALL LOCATIONS EXCEPT CASCADE CREST AND EASTERN MOUNTAINS WHERE SOME SHOWERS WILL PERSIST.
522 PM CST SAT JAN 17 2015 CURRENTLY SEEING A COLD FRONT MOVE THROUGH THE STATE WHICH IS LOCATED JUST WEST OF KHOT AND KLIT.
1047 PM EST SAT JAN 17 2015 HIGH PRESSURE OVER THE REGION WILL MOVE OFFSHORE THIS AFTERNOON. AN UPPER LEVEL DISTURBANCE AND COLD FRONT CROSSING THE AREA TONIGHT INTO SUNDAY WILL BRING ANOTHER CHANCE FOR SHOWERS. HIGH PRESSURE CONTINUES TO MOVE NORTHEASTWARD AWAY FROM THE REGION AS MOISTURE MOVES INTO THE COASTAL COUNTIES. WEAK LOW PRESSURE WILL CONTINUE TO DEVELOP AND HAS BEGUN MOVING NORTHWARD UP THE COAST. THE MAIN UPPER TROUGH WILL CONTINUE TO DEEPEN AND MOVE THROUGH THE REGION DURING THE DAY. LAKE WATER COOL IN THE LOW TO MID 50S BUT WITH WEST WINDS AROUND 20 KTS WITH A FEW GUSTS POSSIBLY NEAR 30KTS NEAR SHORE.
615 PM CST SAT JAN 17 2015 HIGH CLOUDS ARE BEGINNING TO SPILL INTO WESTERN NORTH DAKOTA AHEAD OF BROAD PACIFIC RIDGING OVER THE NORTHERN ROCKIES. WHILE COLD FRONT SWEEPS THROUGH THE MIDWEST. UPPER LEVEL ANALYSIS SHOWS RIDGE OVER THE WESTERN CONUS. WITH TROUGH MOVING INTO THE MIDWEST. SKIES HAVE CLEARED WITH THE DEPARTURE OF THE TROUGH. QUIET WEATHER WILL CONTINUE AS TROUGH CONTINUES ITS EASTWARD PROGRESSION. WARM FRONT LIFTS THROUGH THE AREA AS LIGHT PRECIPITATION STARTS TO DEVELOP PRIMARILY OVER THE NORTHWEST SPREADING TOWARDS THE NORTH CENTRAL THROUGH THE AFTERNOON WITH THE APPROACHING TROUGH. THIS WILL BRING A CONCERN FOR FREEZING RAIN OVER PORTIONS OF THE AREA. PARTICULARLY TOWARDS THE NORTH WHERE COOLER SURFACE TEMPS ARE EXPECTED.
REINFORCING COLD FRONT REACHES THE NORTHERN CWA BY DAYBREAK THEN QUICKLY SWEEPS SWD THROUGH THE AREA BY LATE MORNING. ANOTHER STOUT HIGH PRESSURE CENTER WITH BREEZY/WINDY W TO WNW WINDS WILL SURGE SEWD INTO FL. GUSTY W/NW WINDS SUNDAY AS HIGH PRESSURE BUILDS IN FROM THE WEST SUPPORTING 15-20 KTS WITH GUSTS UP TO 27 KTS. COLD FRONT WILL SWEEP RAPIDLY SOUTHWARD OVER THE ATLC BY EARLY AFTERNOON WITH NW WINDS PICKING UP TO NEAR 20KT OFFSHORE.
930 PM EST SAT JAN 17 2015 A QUIET NIGHT UNDER A RIDGE OF HIGH PRESSURE. 00Z TBW SOUNDING SHOWS SOUTHEAST FLOW AT THE LOWER LEVELS. HIGH PRESSURE RIDGING SOUTHWEST ALONG THE EASTERN SEABOARD AND OVER FLORIDA WILL PRODUCE BENIGN WEATHER CONDITIONS THROUGH SUNDAY AFTERNOON WHEN A WEAK COLD FRONT MOVES NORTH OF FLORIDA.