Aikyam-Lab/Synoptic-Bench huggingface dataset:
TEMPERATURES WILL WARM INTO THE LOWER 90S ACROSS THE EAST AND ALONG THE RED RIVER AND MID TO UPPER 90S ELSEWHERE. THE UPPER LEVEL RIDGE THAT HAS DOMINATED THE WEATHER ACROSS THE REGION FOR MUCH OF THE LAST WEEK WILL WEAKEN AS A TROUGH DEEPENS ACROSS THE EASTERN THIRD OF THE UNITED STATES AND AN UPPER RIDGE BUILDS ACROSS THE WESTERN UNITED STATES. THIS WILL ALLOW A COLD FRONT THAT CURRENTLY EXTENDS ACROSS THE CENTRAL PLAINS FROM NORTHWESTERN MISSOURI INTO SOUTHEAST COLORADO TO MOVE SOUTHEAST.
314 PM EDT THU JUN 25 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE FROM THE OHIO VALLEY THIS EVENING TO THE ATLANTIC COAST BY FRIDAY MORNING.
HIGH PRESSURE WILL SLOWLY DRIFT WEST ACROSS THE STATE ON TEXAS FRIDAY RESULTING IN A DRY AND HOT DAY FOR SOUTH CENTRAL TEXAS WITH HIGHS IN LOWER 90S.
346 PM CDT THU JUN 25 2015 SHOWERS AND THUNDERSTORM HAVE FORMED NEAR A NEARLY STATIONARY UPPER LEVEL TROUGH OVER SOUTHERN LA AND MS THIS AFTERNOON.
THIS TROUGH WAS KICKING OFF SCATTERED SHOWERS AND THUNDERSTORMS ACROSS NORTH CENTRAL WISCONSIN. A PRETTY SEASONABLY NORMAL DAY IN PLACE ACROSS THE AREA WITH TEMPERATURE READINGS IN THE MIDDLE 7OS TO THE LOWER 80S. BUT THEN LOOK TO RAPIDLY DWINDLE AFTER SUNSET WITH LOSS OF HEATING AND EXIT OF THE TROUGH.
A BRIEF DRY BREAK FRIDAY WILL BE FOLLOWED BY A STRONGER LOW PRESSURE SYSTEM AND HEAVIER RAIN FOR THE WEEKEND.
DEEP LOW PRESSURE IS PROJECTED TO SPREAD RAIN OVER THE AREA AGAIN THIS WEEKEND. DEVELOPING LOW PRESSURE OVER THE GREAT LAKES WILL RESUME RETURN FLOW. MOIST ADVECTION AS THE TROUGH TO THE WEST AMPLIFIES. MODELS WERE IN GENERAL AGREEMENT IN DEVELOPMENT OF A DEEP AND CUTOFF UPR/MID LOW PRESSURE SYSTEM OVER THE GREAT LAKES THIS WEEKEND.
STRONG UPPER RIDGE CONTINUES TO DEVELOP THROUGH THE WEEKEND.
WHILE THE UPPER TROF WILL PASS OVER SOUTHERN WISCONSIN. THE LOW WILL YET AGAIN TRACK TO THE SOUTH OF THE STATE KEEPING MUCH OF THE MOISTURE AND PRECIP OUT OF WISCONSIN.
CLOUD COVER TODAY WILL THIN ENOUGH FOR THE ATMOSPHERE TO RECOVER DUE TO HEATING, AS HIGHS CLIMB INTO THE LOW 80S NORTH AND AROUND 90 TOWARD LAWRENCEVILLE. 07Z/2AM SURFACE ANALYSIS SHOWS LOW PRESSURE CENTERED OVER SOUTHWEST IOWA. WITH HIGH TEMPERATURES RANGING FROM THE LOWER 80S FAR NORTH AROUND GALESBURG AND LACON TO THE LOWER 90S SOUTH OF I-70. INTERACTING WITH A COLD FRONT TO PRODUCE ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS.
A BROAD WESTERN ATLANTIC RIDGE EXTENDS ACROSS THE FLORIDA PENINSULA AND NEAR OUR COUNTY WARNING AREA. AS A RESULT OF THE CLOSE PROXIMITY TO THE RIDGE AXIS.
441 PM CDT THU JUN 25 2015 THE HIGHLY AMPLIFIED UPPER LEVEL FLOW ADVERTISED BY MEDIUM RANGE MODELS SEVERAL DAYS AGO HAS NOW BEGUN. A STRONG UPPER LEVEL RIDGE WILL ANCHOR ITSELF OVER THE INTERMOUNTAIN WEST WHILE A DECENT ERN US TROF DEVELOPS. THIS PLACES TX AND OK PNHDLS IN NW TO NORTHERLY FLOW ALOFT THROUGH THE WEEKEND WHICH IS USUALLY FAVORABLE FOR STEERING TSTMS OFF THE HIGHER TERRAIN OF ERN NM AND SERN CO INTO PARTS OF OUR AREA. A WEAK COLD FRONT IS SLATED TO MOVE THRU THE REGION LATE TONIGHT AND FRIDAY.
WITH HIGH PRESSURE TO THE NORTH OF THE AREA. TODAY THROUGH FRIDAY NIGHT UPPER LEVEL ANALYSIS HAS WEAK RIDGE OVER THE PACIFIC COAST WITH NORTHWEST FLOW ACROSS THE NORTHERN PLAINS. WEAK HIGH PRESSURE IS LOCATED ACROSS THE DAKOTAS WITH LOW PRESSURE AND STATIONARY BOUNDARY ACROSS CENTRAL WYOMING. TEMPS LOOK TO BE ON THE COOLER SIDE. UPPER FLOW BECOMES MORE AMPLIFIED AS UPPER RIDGE BUILDS ACROSS THE GREAT BASIN AND INTO THE NORTHERN AND CENTRAL ROCKIES. UPPER RIDGE CONTINUES TO BUILD INTO THE AREA FRIDAY NIGHT.
613 PM EDT THU JUN 25 2015 A RATHER DIFFUSE SURFACE PRESSURE PATTERN WILL BECOME MORE DEFINED ON FRIDAY AS LOW PRESSURE DEVELOPS AND DEEPENS OVER THE LOWER OHIO VALLEY AND MOVES NORTHEAST INTO THE REGION FRIDAY NIGHT.
UPPER LEVEL HIGH PRESSURE OVER THE SOUTHWESTERN U. THIS RIDGING WILL STRENGTHEN TONIGHT. MAY SEE A FEW CUMULUS CLOUDS OVER THE HIGHER PEAKS OF THE CASCADES LATE TODAY. HIGH TEMPS THIS AFTERNOON WILL WARM BY 5 TO 8 DEGREES OVER YESTERDAY'S HIGHS DUE TO THE BUILDING HIGH PRESSURE ALOFT. MODELS CONTINUE TO SHOW HIGH PRESSURE OVER THE WESTERN HALF OF THE COUNTRY BUT THERE HAVE BEEN A FEW CHANGES FROM PREVIOUS RUNS.
FOCUS IS ON THE SEASONABLY STRONG LOW PRESSURE CENTER MOVING THROUGH THE OHIO RIVER VALLEY.
THE HIGHEST HEAT INDICES ARE OCCURRING IN THE DELTA REGION WHERE SOME HAVE BEEN AROUND 102-105 DEGREES. FRIDAY SHOULD SEE A LITTLE MORE IN THE WAY OF CONVECTION AS AN UPPER TROUGH MOVES TOWARD THE LOWER MISSISSIPPI RIVER VALLEY. THIS WILL BRING A COLD FRONT TOWARD THE ARKLAMISS REGION. SHOWERS AND STORMS WILL BE A LITTLE MORE NUMEROUS FRIDAY AFTERNOON AND EVENING AND SHOULD CONTINUE ALONG AND AHEAD OF THE COLD FRONT.
THE CONTINUED WEAKENING OF MID-LEVEL RIDGING/SUBSIDENCE. /ISSUED 615 AM CDT THU JUN 25 2015/ HIGH PRESSURE LINGERING OVERHEAD WILL HELP SUPPRESS MOST CONVECTION FOR MOST OF TODAY. AS THE RIDGE TO THE EAST WEAKENS THESE NEXT COUPLE OF DAYS. WE ARE STILL LOOKING FOR THE AMPLIFICATION OF THE UPPER RIDGE TO THE WEST.
140 PM PDT THU JUN 25 2015 AFTERNOON TEMPERATURES WILL REMAIN ABOVE NORMAL ACROSS INLAND AREAS WITH COOLER CONDITIONS ALONG THE COASTAL AREAS THROUGH FRIDAY.
331 PM EDT THU JUN 25 2015 A WEAK AREA OF LOW PRESSURE WILL MOVE FROM THE OHIO VALLEY THIS EVENING TO THE ATLANTIC COAST BY FRIDAY MORNING.
WEAK HIGH PRESSURE WILL BE OVER THE AREA TODAY THRU FRIDAY WITH LIGHT WINDS. ENOUGH SFC HEATING OF THE DAY TO REACH CONVECTIVE TEMPS IN THE LOWER 80S TO FORM CUMULUS IN THE AFTN.
200 PM PDT THU JUN 25 2015 HIGH PRESSURE WILL BRING FAIR AND WARM WEATHER THIS WEEK WITH SOME COASTAL CLOUDS EACH NIGHT AND MORNING.
423 PM EDT THU JUN 25 2015 SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH MAINLY THIS EVENING ALONG A COLD FRONT MOVING ACROSS THE REGION. FOCUS IS ON THE SEASONABLY STRONG LOW PRESSURE CENTER MOVING THROUGH THE OHIO RIVER VALLEY.
313 PM EDT THU JUN 25 2015 A WEAK COLD FRONT WILL STALL TO OUR SOUTH BY THIS EVENING. WEAK LOW PRESSURE WILL TRACK EAST ALONG THE FRONT. PASSING SOUTH OF NEW ENGLAND TONIGHT AND FRIDAY AS HIGH PRESSURE BUILDS IN FROM THE WEST.
1218 PM CDT THU JUN 25 2015 VFR CONDITIONS WILL AGAIN BEEN SEEN THROUGH THE PERIOD AS HIGH PRESSURE REMAINS IN CONTROL.
148 PM EDT THU JUN 25 2015 HIGH PRESSURE CONTINUES TO MOVE EAST OF OHIO. WHICH WILL ALLOW LOW PRESSURE TO MOVE ACROSS THE AREA BY THURSDAY EVENING.
118 PM EDT THU JUN 25 2015 AN UPPER-LEVEL RIDGE ACROSS THE SOUTHERN STATES WILL HOLD HOT TEMPERATURES ACROSS THE FORECAST AREA THROUGH FRIDAY.
109 PM EDT THU JUN 25 2015 HIGH PRESSURE CONTINUES TO MOVE EAST OF OHIO. WHICH WILL ALLOW LOW PRESSURE TO MOVE ACROSS THE AREA BY THURSDAY EVENING.
340 PM CDT THU JUN 25 2015 HIGH PRESSURE NEARBY FOR MUCH OF THE SHORT TERM PERIOD LEADING TO GENERALLY FAIR WEATHER. WITH A BASICALLY UNCAPPED ENVIRONMENT AND THE DEVELOPMENT OF 500-1000+ J/KG MLCAPE A FEW STORMS WERE ABLE TO FIRE DESPITE THE BROAD /BUT NOT ESPECIALLY STRONG/ AREA OF HIGH PRESSURE ACROSS THE UPPER MIDWEST. BEST AREA FOR STORMS IS ALONG THE HIGHER TERRAIN OF NORTHEAST MINNESOTA. LOWS IN THE LOW TO MID 50S. WITH THE BEST CHANCES ACROSS THE HIGHER TERRAIN INLAND.
405 PM EDT THU JUN 25 2015 A RATHER DIFFUSE SURFACE PRESSURE PATTERN WILL BECOME MORE DEFINED ON FRIDAY AS LOW PRESSURE DEVELOPS AND DEEPENS OVER THE LOWER OHIO VALLEY AND MOVES NORTHEAST INTO THE REGION FRIDAY NIGHT.
THE UPPER PATTERN BEGINS TO AMPLIFY WITH A SHORT WAVE TROUGH SWEEPING ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS OVERNIGHT TONIGHT. THE PATTERN CONTINUES TO AMPLIFY WITH A LARGE AREA OF HIGH PRESSURE BUILDING OVER THE WESTERN UNITED STATES. A LOW PRESSURE CENTER DEEPENING OFF THE WEST COAST.
THE AFOREMENTIONED COLD FRONT WILL MOVE SOUTH THROUGH THE AREA OVERNIGHT INTO FRIDAY MORNING. STAGNANT MID- LEVEL FLOW BECOMES NORTHWEST BY TONIGHT AS LONG-AWAITED AMPLIFICATION OF WESTERN CONUS RIDGE GETS UNDERWAY. CHANCES FOR THUNDERSTORMS REMAIN IN FORECAST FOR NORTHWESTERN SECTIONS THIS AFTERNOON AS INSTABILITY INCREASES ALONG PRE-FRONTAL SURFACE TROF AND LEAD VORTICITY MAXIMUM EMERGES FROM STRENGTHENING MID-LEVEL FLOW. COLD FRONT REACHES NORTHERN SECTIONS BY DAYBREAK FRIDAY.
ESPECIALLY AIDED BY THE OUTFLOW FROM THE CLUSTER OF STORMS COMING OFF THE HIGHER TERRAIN OF GREENLEE COUNTY. HIGH PRESSURE WILL BRIEFLY STRENGTHEN AND RECONSOLIDATE SLIGHTLY OVER NORTHERN ARIZONA WHICH WILL RESULT IN LESSER CHANCES OF SHOWERS AND THUNDERSTORMS FROM TUCSON NORTH AND WEST WITH THE BULK OF THE STORMS SOUTH AND EAST OF TUCSON AND ESPECIALLY NEAR THE NEW MEXICO AND INTERNATIONAL BORDERS. HIGH PRESSURE ALOFT WILL BE LOCATED OVER THE GREAT BASIN RESULTING IN FAVORABLE EASTERLY FLOW WITH CONSIDERABLE MOISTURE. THERE WILL BE EMBEDDED WEAK INVERTED TROUGHS IN THE FLOW TO OUR SOUTH THAT WILL LIKELY ENHANCE CONVECTION.
300 PM PDT THU JUN 25 2015 UPDATED AIR QUALITY SECTION A RIDGE OF HIGH PRESSURE PARKED OVER THE FOUR CORNERS REGION WILL BRING DRY WEATHER AND ABOVE NORMAL TEMPERATURES TO THE CENTRAL CA INTERIOR THROUGH FRIDAY.
ESPECIALLY OVER THE HIGHER TERRAIN OF EASTERN ARIZONA. WARMER THAN NORMAL DAYTIME TEMPS WILL ALSO PERSIST. THE HIGHEST STORM COVERAGE IS EXPECTED OVER THE WHITE MOUNTAINS.
256 PM CDT THU JUN 25 2015 SKIES REMAIN MOSTLY SUNNY OVER MUCH OF THE FORECAST AREA THIS AFTERNOON WITH TEMPERATURES IN THE LOW TO MID 90S. TEMPERATURES ARE ACTUALLY RUNNING A COUPLE OF DEGREES COOLER THAN YESTERDAY AND HEAT INDEX VALUE ARE ALSO NOT QUITE AS HIGH AS WELL. THIS FRONT WILL START TO MOVE SOUTH AS A COLD FRONT ON FRIDAY. TEMPERATURES WILL BE A LITTLE COOLER WITH THE INCREASE IN CLOUDS AHEAD OF THE FRONT AS HIGHS WILL BE MAINLY IN THE LOWER 90S. THE COLD FRONT WILL CONTINUE TO MOVE SOUTH AND WILL REACH NORTHERN SECTIONS OF THE FORECAST AREA FRIDAY NIGHT SO THERE WILL BE A BETTER CHANCE OF THUNDERSTORMS.
102 PM CDT THU JUN 25 2015 IFR DOMINATING WITH VERY WEAK UPPER TROUGH FORMING OVERHEAD. /ISSUED 225 AM CDT THU JUN 25 2015/ UPPER LEVEL RIDGE WILL CONTINUE TO BUILD ACROSS THE GREAT BASIN OVER THE NEXT 24 HOURS RESULTING IN NORTHERLY TO NORTHWESTERLY FLOW ACROSS THE REGION. THE LOW CLOUD RISK APPEARS LESS FRIDAY MORNING THAN WE WILL LIKELY SEE THIS MORNING. AS THE UA RIDGE IS PROGGED TO BECOME RE-ESTABLISHED AND AMPLIFY NW OF THE FOUR-CORNERS REGION BY LATE WEEK. THE AMPLIFICATION OF THE SAID UA RIDGE IS SHOWN TO BE QUITE IMPRESSIVE AS 500 MB HEIGHT FIELDS ARE EXPECTED TO CLIMB TO AOA 597 DAM THAT WILL BE CENTERED ACROSS SERN NV/SWRN UT. WITH THE UA RIDGE TO OUR WEST THIS WILL RESULT IN NWRLY FLOW ALOFT DOMINATING ACROSS THE SOUTHERN PLAINS.
COLDER AIR ALOFT ASSOCIATED WITH THE TROF SHOULD KEEP PRECIPITATION ALL SNOW SO KEPT FREEZING RAIN MENTION OUT OF THE FORECAST TONIGHT. CLOUDS AND PRECIPITATION CHANCES WILL DECREASE OVERNIGHT LEAVING A PARTLY CLOUDY TO MOSTLY SUNNY DAY ON TUESDAY AS BRIEF RIDGING BUILDS OVER THE AREA. WINDS WILL INCREASE ALONG THE FRONT RANGE TUESDAY AS LEE SIDE TROFFING BEGINS.
A WEAK TROUGH WILL BRING CLOUDS AND SMALL CHANCES FOR LIGHT PRECIPITATION TONIGHT AND AGAIN TUESDAY EVENING.
Dewpoints remain in the low/mid 30s under clear skies, so we will likely continue to see a downward trend for the next few hours. A weak cold front will enter the northern Big Country late in the day.
622 PM EST MON JAN 18 2016 ARCTIC HIGH PRESSURE WILL CONTINUE TO PRODUCE VERY COLD CONDITIONS TONIGHT THROUGH TUESDAY.
Dry conditions will persist tonight as short range models indicate a generally weak upper level ridge of high pressure shifting eastward across the Western High Plains tonight. Although an attendant cold front is projected to push through western Kansas by mid-day providing increased forcing, little moisture is associated with this system. Low temperatures tonight will not be as cold as a prevailing south to southeasterly low level flow draws warmer air northward into central and much of southwest Kansas. A cold front will push through western Kansas by early afternoon Tuesday allowing colder air to briefly filter back into the area curtailing any significant warm up. Medium range models indicate a weak upper level ridge of high pressure moving eastward across the Western High Plains Tuesday night while a much drier air mass remains settled across the high plains of western Kansas.
WILL KEEP A MENTION OF PATCHY FREEZING FOG ACROSS PORTIONS OF WESTERN/NORTHWEST OKLAHOMA FOR LATE TONIGHT. PATCHY FREEZING FOG WAS ADDED TO WESTERN AREAS LATER TONIGHT SINCE SURFACE MOISTURE CONTINUES TO INCREASE IN THESE AREAS.
SOME OF THE 00Z MODELS ARE RATHER PROGRESSIVE WITH THE COLD FRONT AND UPPER TROUGH.
TUESDAYS MAX TEMPERATURES WILL BE ABOUT 5 TO 10 DEGREES COOLER THAN TODAY. THE ASSOCIATED COLD FRONT IS EXPECTED TO PUSH SOUTH INTO THE STATE JUST AFTER MIDNIGHT.
AN AREA OF LOW PRESSURE TRACKING THROUGH EASTERN MONTANA WILL PASS THROUGH THIS REGION OVERNIGHT AND TUESDAY. CONTINUING WITH THE HIGH POP/LOW QPF THINKING HERE AS THIS SYSTEM HAS RATHER LIMITED MOISTURE TO WORK WITH. WITH TEMPERATURES EITHER LEVELING OFF OR STARTING TO WARM UP AS LOW LEVEL WAA ACCOMPANIES THIS LOW PRESSURE SYSTEM.
HIGH PRESSURE IS BUILDING INTO THE AREA AND WILL CONTINUE TO BUILD IN THROUGH TUE AFTERNOON. TEMPS ACROSS NORTH GA WILL ONLY GET UP TO NEAR FREEZING FOR HIGHS TUESDAY AND INTO THE MID 40S ACROSS CENTRAL GA.
HIGH PRESSURE ALOFT WILL BECOME ESTABLISHED ACROSS THE REGION LATE IN THE WEEK.
WITH MORE CLOUDS ANTICIPATED TEMPERATURES SHOULD BE WARMER THAN GUIDANCE DESPITE THE LIGHT WINDS.
HIGH PRESSURE AND A RELATIVELY DRY AIR MASS WILL PREVAIL THROUGH THE NIGHT AND MORNING WITH LIGHT WINDS. THE HIGH WILL MOVE OFF TO THE EAST ON TUESDAY AFTERNOON WITH SOUTHEAST WINDS RETURNING AND A FEW CLOUDS. AS HIGH PRESSURE MOVES EAST, LIGHT SOUTHERLY WINDS WILL BEGIN A WARMING TREND ON TUESDAY.
MOST OF THE LOWER CLOUDS HAVE DISSIPATED LEAVING A MOSTLY CLEAR SKY OVER NW MN. BUT ALSO RUNNING INTO DRY AIR WITH UPPER LEVEL TROUGH OVER ERN ONTARIO/QUEBEC AND DRIER MID AND HIGH LEVEL AIRMASS WRAPPING AROUND IT. A SOUTH WIND (ALTHOUGH LIGHT) WILL BE GOING ON TONIGHT IN ERN ND AND WITH THICKENING HIGH CLOUDS EXPECT NOT A LARGE TEMP DROP WITH COLLABORATION AMONG OFFICES WENT MORE ALONG THE LINES OF THE WARMER TEMP GUIDANCES. ALSO QUITE A BIT OF DRY AIR IN THE LOWEST LEVELS SO NOT MUCH ACCUM IS EXPECTED.
622 PM CST MON JAN 18 2016 ANOTHER COLD ONE IS EXPECTED TONIGHT WITH SLIGHTLY WARMER TEMPERATURES MOVING IN TOMORROW AND A CHANCE FOR LIGHT SNOW ACROSS WESTERN MINNESOTA IN THE AFTERNOON. THERE ARE HIGH CLOUDS SPILLING OUT ACROSS THE DAKOTAS OVER THE TOP OF THE LOW STRATUS IN ADVANCE OF THIS FEATURE.
/ISSUED 259 PM CST MON JAN 18 2016/ HIGH PRESSURE HAS BROUGHT ANOTHER DAY OF SUNNY SKIES AND LGT WINDS TO AREA. THIS HIGH WILL BEGIN TO MOVE EASTWARD. WITH POSSIBLY SLIGHTLY COOLER TEMPS ACROSS EXTREME NORTHERN CWA.
WILL BE IN A QUIET WEATHER PATTERN TONIGHT WITH A STRONG ARCTIC HIGH PRESSURE IN CONTROL. CHATTANOOGA AIRPORT, TN 16 35 24 37 / 0 0 10 70 KNOXVILLE MCGHEE TYSON AIRPORT, TN 12 29 16 34 / 0 0 10 70 OAK RIDGE, TN 11 30 21 35 / 0 0 10 70 TRI CITIES AIRPORT, TN 6 24 12 33 / 0 0 10 70 TN.
938 PM EST MON JAN 18 2016 DRY HIGH PRESSURE IS RIDGING ACROSS THE AREA FROM THE NW. CURRENT FORECAST IS ON TRACK FOR TONIGHT WITH TEMPERATURES FALLING INTO THE LOWER 30S ACROSS LEVY COUNTY WHERE A FREEZE WARNING IS IN PLACE.
A weak cold front will enter the northern Big Country late in the day.
An Arctic high pressure system is over the area this afternoon with mostly sunny skies and temperatures struggling to climb into the middle 20s. Overnight lows will be in the lower teens out east to around 20 across far southwest Missouri. We are expecting mostly a sleet and snow wintry mix across the area with some potential for light freezing drizzle. The freezing rain potential has decreased from previous model runs due to less of a warm nose across southern Missouri. we expect a wintry mix of sleet and some snow along with some freezing drizzle potential. There may be a hundredth or two of freezing drizzle accumulations and up to a quarter of an inch of sleet accumulations total.
LOW CLOUDS WILL BEGIN TO DEVELOP PRIMARILY ACROSS AREAS WEST OF I-35 AFTER MIDNIGHT DUE TO ISENTROPIC ASCENT OVER THE SHALLOW COLD AIR MASS IN PLACE FROM LAST NIGHT/S COLD FRONT. TOMORROW IS STILL EXPECTED TO BE MUCH WARMER THAN TODAY WITH HIGHS IN THE MID 50S TO MID 60S.
THERE IS ANOTHER DISTURBANCE MOVING THROUGH WASHINGTON AND OREGON THIS EVENING THAT IS EXPECTED TO PASS THROUGH THE HIGH PRESSURE RIDGE AND MAY ACT ON THE LOW LEVEL STRATUS THROUGH IDAHO FALLS. SO DROPPED THE FREEZING DRIZZLE IN FAVOR OF RAIN OR SNOW MIXED.
LOW PRESSURE IS EXPECTED TO DEEPEN IN THE NEXT 12-18 HOURS, BUT IT'S NOT EXPECTED TO DEEPEN RAPIDLY.
1019 PM EST MON JAN 18 2016 COLD AND DRY CANADIAN HIGH PRESSURE WILL BUILD INTO OUR REGION THROUGH MID WEEK. A LOW PRESSURE SYSTEM WILL BRING RAIN TO THE AREA LATE IN THE WEEK.
HIGH PRESSURE AND LOW PRESSURE WILL TAKE TURNS CROSSING INDIANA FOR THE NEXT SEVERAL DAYS. HIGH PRESSURE WILL CONTROL HOOSIER STATE WEATHER INTO TUESDAY NIGHT.
947 PM CST MON JAN 18 2016 HIGH PRESSURE WAS BUILDING OVER SE TEXAS THIS EVENING AND SHOULD MOVE EAST OF THE STATE LATER TONIGHT. LIGHT ONSHORE WINDS HAVE ALREADY DEVELOPED AND EXPECT TEMPERATURES TO IN TURN BE WARMER THAN LAST NIGHT. 26 5 28 0 41 THE HIGHEST NUMBER OF NEW RECORDS WERE HIGH MIM TEMPERATURES FOLLOWED BY HIGH MAX TEMPERATURES. YOU COULD SAY THAT 41 MORNINGS HAD LOW TEMPERATURES WHICH WERE THE HIGHEST ON RECORD. AND THAT 28 AFTERNOONS EXPERIENCED THE HIGHEST DAYTIME HIGHS ON RECORD.
ARCTIC HIGH PRESSURE IN CONTROL ACROSS THE REGION. WINDS HAVE BEEN DIMINISHING THIS AFTERNOON AND TEMPS RANGE FROM THE UPPER TEENS ALONG THE KENTUCKY BORDER TO THE LOWER 30S FROM TUPELO SOUTH. HIGH PRESSURE WILL SLOWLY MOVE EAST INTO THE OHIO VALLEY WITH LIGHT NE FLOW TONIGHT BECOMING EAST ON TUESDAY. EXPECT LOWS FROM THE UPPER SINGLE DIGITS IN PARIS TO THE LOWER 20S NEAR CLARKSDALE.
ANOTHER COLD ONE IS EXPECTED TONIGHT WITH SLIGHTLY WARMER TEMPERATURES MOVING IN TOMORROW AND A CHANCE FOR LIGHT SNOW ACROSS WESTERN MINNESOTA IN THE AFTERNOON. THERE ARE HIGH CLOUDS SPILLING OUT ACROSS THE DAKOTAS OVER THE TOP OF THE LOW STRATUS IN ADVANCE OF THIS FEATURE.
532 PM CST MON JAN 18 2016 HIGH PRESSURE WAS BUILDING INTO THE FORECAST AREA FROM THE WEST AT 2030Z. A SFC TROF WAS LOCATED OVER WESTERN LAKE SUPERIOR. THIS TROF ALONG WITH PRONOUNCED WIND SHEAR AND DRIER AIR MOVING OVER THE LAKE. THE RIDGE AXIS REMAINS IN CHARGE THROUGH 18Z TUESDAY. THE HIGH IS STILL NEARBY BUT WEAKENING.
LEADING MID LEVEL WARM FRONT RESPONSIBLE FOR THE THICKER CLOUDS WILL HAVE LITTLE IMPACT ON SNOW DEVELOPMENT. TEMPERATURES TONIGHT ARE A LITTLE TRICKY AS MANY AREAS WARMED INTO THE HIGHER END SINGLE DIGITS TO AROUND 10F. HEDGES TOWARD WARMER END OF AVAILABLE GUIDANCE NUMBERS.
Only a few showers linger over the higher terrain. Also, with many wet surfaces and recent snow melt, refreezing roads can be expected after sunset, especially back roads, driveways, and the like.
805 PM MST MON JAN 18 2016 HIGH PRESSURE OVER THE WESTERN STATES WILL FLUCTUATE IN STRENGTH BUT KEEP WEATHER SYSTEMS TO THE NORTH OF ARIZONA THROUGH THE WEEK.
increasing surface moisture will help to keep temps warmer compared to last night. Cooler temps remaining over Northeast Oklahoma into Northwest Arkansas will allow for the onset of precip Tuesday afternoon/evening to be potentially a wintry mix of rain/freezing rain.
628 PM EST MON JAN 18 2016 COLD AND DRY CANADIAN HIGH PRESSURE WILL BUILD INTO OUR REGION THROUGH MID WEEK. A LOW PRESSURE SYSTEM WILL BRING RAIN TO THE AREA LATE IN THE WEEK. THE WARMTH THE SUNSHINE WOULD BRING IS GOING TO BE OFFSET BY STRONG COLD ADVECTION AT THE SURFACE AS ANOTHER ARCTIC COLD FRONT PUSHES EAST OF THE CWA. HIGH PRESSURE WILL BEGIN TO MOVE INTO THE AREA.
SURFACE WINDS VEER SLIGHTLY INTO TOMORROW AFTERNOON AS HIGH PRESSURE NEARS THE EASTERN SEABOARD.
THEY WILL HELP TO KEEP TEMPERATURES WARMER THAN FORECAST. WITH THE RIDGE AXIS OVERHEAD. THE RIDGE AXIS SLIDES EAST OF THE REGION ON TUESDAY AS A WEAK UPPER LEVEL TROUGH MOVES OUT OF THE NORTHERN PLAINS INTO UPPER MISSISSIPPI RIVER VALLEY. TEMPERATURES WILL BE A LITTLE WARMER TOMORROW AS THE ARCTIC AIRMASS PUSHES EAST OF THE AREA.
UPDATES HAVE BEEN MADE TO THE CURRENT FORECAST TONIGHT TO JUST SLIGHTLY ADJUST THE LOWS DOWNWARD. A FEW OF THE MORE ISOLATED COOLER SPOTS WILL COME IN NEAR 10 DEGREES IF NOT COOLER IN THE NORTH. NORTHERLY WINDS WILL PREVAIL AS SFC RIDGING BUILDS IN FROM THE NW.
MANY UPSTREAM SITES (INCLUDING THE SW WYOMING CORNER) HAVE SURFACE DEW POINTS IN THE LOWER 30S. RAP13 MODEL SPITTING OUT SOME DECENT QPF VALUES FOR THE HIGH COUNTRY. THE NEXT TROUGH MOVES IT. THE FIRST WEAK TROUGH WILL BRING NW FLOW AND LIKELY SNOW TO THE MOUNTAINS TUE NIGHT. THE GFS SHOWS A SECOND WEAK TROUGH DROPPING INTO THE AREA LATE TUE NIGHT RIGHT ON THE HEALS OF THE FIRST. THEN THE THIRD TROUGH IN THE LITTLE PACKAGE OF ACTIVITY WILL DIG INTO THE AREA WED NIGHT. A STRONG RIDGE WILL BRING DRIER AIR AND CLEARER SKIES TO THE AREA THU. THE CLEAR SKIES COMBINED WITH FRESH SNOW ON THE GROUND WILL PROBABLY BRING BACK THE VERY COLD TEMPERATURES TO THE HIGH MOUNTAIN VALLEYS. THE MIDRANGE MODELS SHOW ANOTHER SERIES OF TROUGHS AFFECTING THE AREA SAT THROUGH MON.
756 PM MST MON JAN 18 2016 UPPER TROUGH WAS SWINGING THROUGH THE AREA WITH ECHOES ON KBLX RADAR PRIMARILY EAST OF BILLINGS. FREEZING RAIN AND SNOW WITH THE RADAR RETURNS. DRYING TREND OCCURRING ON THE BACK SIDE OF THE TROUGH AND HAVE THUS LOWERED POPS OVER THE WEST AND PARTS OF THE CENTRAL ZONES. COLDER AIR ALOFT ASSOCIATED WITH THE TROF SHOULD KEEP PRECIPITATION ALL SNOW SO KEPT FREEZING RAIN MENTION OUT OF THE FORECAST TONIGHT. CLOUDS AND PRECIPITATION CHANCES WILL DECREASE OVERNIGHT LEAVING A PARTLY CLOUDY TO MOSTLY SUNNY DAY ON TUESDAY AS BRIEF RIDGING BUILDS OVER THE AREA. WINDS WILL INCREASE ALONG THE FRONT RANGE TUESDAY AS LEE SIDE TROFFING BEGINS.
PRECIPITATION TYPE WILL MAINLY BE RAIN IN THE LOWER ELEVATIONS AND SNOW IN THE MOUNTAINS BUT ONCE AGAIN SOME COLD AIR TRAPPED ALONG THE EAST SLOPES OF THE WASHINGTON CASCADES WILL ALLOW FOR LOWER SNOW LEVELS AND SOME SNOW ACCUMULATIONS IN THE LOWER ELEVATIONS.
CANT RULE OUT SOME SPOT SHOWERS AND MT TOP OBSCD ACROSS THE HIGH TERRAIN NEAR THE COLORADO BORDER. FMN SHOULD SEE THE LOWEST CLOUD DECKS OF ALL OF THE TERMINAL SITES. WEST WINDS WILL INCREASE ACROSS THE HIGHER TERRAIN THIS EVENING AND CONTINUE THROUGH THE NIGHT.
THIS TROF PASSAGE WL VEER WINDS BRIEFLY TO THE NW DURING THE EVENING AND LEAVE THE DOOR OPEN FOR A BRIEF PERIOD OF LAKE ENHANCEMENT OVER VILAS CNTY.
A BRIEF RETURN OF FOG/FREEZING FOG IS POSSIBLE ACROSS THE EASTERN PANHANDLES. /ISSUED 337 PM CST MON JAN 18 2016/ LOW CLOUDINESS AND FREEZING FOG OR FOG FINALLY CLEARING OUT BUT STILL LINGERING ACROSS THE FAR EASTERN SECTIONS OF THE PANHANDLES BY THIS AFTERNOON. PATCHY FREEZING FOG COULD POSSIBLY REDEVELOP OVER THE NORTHEASTERN QUARTER OR SO OF THE FORECAST AREA. UPPER TROUGH TO PUSH ACROSS THE PANHANDLES TUESDAY WITH COLD FRONT MOVING THROUGH THE FORECAST AREA TUESDAY MORNING. DESPITE THE COLD FRONTAL PASSAGE TUESDAY. FRONT SHOULD FINALLY CLEAR OUT THE LOW CLOUDS AND ANY RESIDUAL FOG OR FREEZING FOG BY 18Z TUESDAY.
QUIET WEATHER PATTERN THOUGH THE TAF PERIOD WITH A STRONG ARCTIC HIGH PRESSURE IN CONTROL.
401 PM CST MON JAN 18 2016 STATUS HAS CONTINUED TO POSE ISSUES THIS AFTERNOON AS IT LINGERS ALONG THE RIDGE AXIS. DECENT BUST POTENTIAL IF CLEARING DOES OCCUR FARTHER EAST AND UNDERNEATH THE RIDGING. WIND CHILLS WILL BE CLOSE TO ADVISORY BUT WITH THE RIDGE NEARBY.
931 PM EST MON JAN 18 2016 THE NEAR TERM SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE AND LOW PRESSURE WILL TAKE TURNS CROSSING INDIANA FOR THE NEXT SEVERAL DAYS. HIGH PRESSURE WILL CONTROL HOOSIER STATE WEATHER INTO TUESDAY NIGHT.
535 PM CST MON JAN 18 2016 STATUS HAS CONTINUED TO POSE ISSUES THIS AFTERNOON AS IT LINGERS ALONG THE RIDGE AXIS. DECENT BUST POTENTIAL IF CLEARING DOES OCCUR FARTHER EAST AND UNDERNEATH THE RIDGING. WIND CHILLS WILL BE CLOSE TO ADVISORY BUT WITH THE RIDGE NEARBY.
HIGH PRESSURE CONTINUES TO STRETCH FROM THE NORTHERN PLAINS STATES TO THE NORTHERN GULF LEADING TO A LIGHT NORTHERLY FLOW AND COLD TEMPS TONIGHT AND EARLY TUE. TONIGHT'S LOWS WILL BE SLIGHTLY COOLER THAN LAST NIGHT INCLUDING THE IMMEDIATE COAST WHERE A LIGHT FREEZE COULD ALSO OCCUR IN SOME LOCATIONS. LOWS TONIGHT WILL FALL TO THE LOWER TO MIDDLE 20S WELL INLAND AND THE UPPER 20S TO LOWER 30S NEAR THE COAST.