Aikyam-Lab/Synoptic-Bench huggingface dataset:
913 PM EST THU FEB 18 2016 HIGH PRESSURE WILL BUILD OVER THE AREA THROUGH FRIDAY. A WARM FRONT LIFTS OVER THE WESTERN HALF OF THE AREA FRIDAY NIGHT WHILE A COLD FRONT SINKS AND STALLS OVER THE MID-ATLANTIC FOR THE WEEKEND.
913 PM EST THU FEB 18 2016 WARMER TEMPERATURES WILL ARRIVE FRIDAY AND CONTINUE THROUGH MUCH OF THE WEEKEND. LOWERED MIN TEMPS 2 TO 3 DEGREES MAINLY ACROSS THE NORTH AND INTO THE SOUTHEAST RIDGES BASED ON CURRENT READINGS. HIGH CLOUDS STREAMING NORTHEAST TONIGHT AS A WARM FRONT APPROACHES THE AREA FROM THE SOUTHWEST. WARM FRONT MOVES WELL NORTH OF THE FORECAST AREA FRIDAY. SOUTHEAST FLOW DURING THE EVENING COULD KEEP SOME COOLER TEMPERATURES ACROSS DUJ AND VICINITY. BUT THINK THAT ANY FREEZING RAIN THREAT IS MINIMAL.
HIGH PRESSURE AND WARMING TEMPERATURES ARE EXPECTED TO PREVAIL OVER THE NEXT SEVERAL DAYS.
HIGH PRESSURE WILL SETTLE TO THE NORTHWEST OF THE REGION ON FRIDAY LEADING TO MUCH LIGHTER WINDS THAN EVIDENT TODAY.
954 PM EST THU FEB 18 2016 HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND.
915 PM EST THU FEB 18 2016 HIGH PRESSURE OVER THE AREA WITH CLEAR SKIES AND LIGHT WINDS WILL ALLOW TEMPS TO BOTTOM OUT A FEW DEGREES BELOW NORMAL INLAND.
Low level thermal ridging along with a leeside trough will continue to lead to very warm conditions for this time of year.
ALTHOUGH CLOUDS WILL BE ON THE INCREASE IN ADVANCE OF A WARM FRONT. THIS WARM FRONT WILL LIFT THROUGH AND BRING MUCH WARMER TEMPERATURES AND WINDY CONDITIONS FOR FRIDAY.
A WARMER H85 LEVEL WITH SOUTHERLY FLOW WILL CREATE WARMER CONDITIONS FOR FRIDAY.
However, warm temperatures are forecast once again, with afternoon highs in the low/mid 80s.
THE PATTERN ALOFT FEATURED UPPER RIDGING IN THE INTERIOR CONUS IN BETWEEN TROUGHS ALONG THE WEST AND EAST COASTS. DRAGGING AN ASSOCIATED COLD FRONTAL BOUNDARY ACROSS OUR REGION. HEADING INTO FRIDAY THE AIRMASS COOLS AROUND 10C COMPARED TO TODAY FOLLOWING THAT COLD FRONT.
SOME SLIGHTLY HIGHER WINDS ARE EXPECTED ACROSS THE NORTH BY FRIDAY MIDDAY THROUGH THE AFTERNOON AS THE RIDGE WEAKENS AND PUSHES OFF THE COAST AND SURFACE PRESSURE GRADIENTS BEGIN TO INCREASE ACROSS THE NORTHWEST PART OF ALABAMA IN RESPONSE. 08 HIGH PRESSURE WILL SETTLE ACROSS THE AREA THROUGH THE FIRST HALF OF THE WEEKEND.
This should enable low temperatures to dip to around 40-43 degrees in most locations, with coastal locations slightly warmer, and typically cold locations slightly cooler.
622 PM EST THU FEB 18 2016 HIGH PRESSURE MOVES EAST TONIGHT.
820 PM MST THU FEB 18 2016 SHOWERS CROSSING SOUTH CENTRAL SOUTH DAKOTA ARE MIXING STRONGER WINDS DOWN TO THE SURFACE SO HAVE MOVED UP THE START TIME FOR THE HIGH WIND WARNING THAT WAS SET TO GO INTO EFFECT LATER THIS EVENING FOR THOSE AREAS. LATEST SFC ANALYSIS SHOWS LOW PRESSURE CENTERED OVER THE FAR SOUTHEASTERN CORNER OF MONTANA WITH A WARM FRONT. AS RIDGE OVER THE CENTRAL CONUS SHIFTS EASTWARD. AND LIGHTER WINDS/COOLER TEMPS TO THE NORTH. SWEEPING A COLD FRONT THROUGH THE CWA IN THE EVENING. HAVE ADDED SOUTH CENTRAL SD TO THE HIGH WIND WARNING. TEMPS WILL BE COOLER.
426 PM MST THU FEB 18 2016 COLD FRONT WILL MOVE THROUGH TONIGHT BRINGING A THREAT OF BRIEF GUSTY WINDS. OTHERWISE SLIGHTLY COOLER TEMPERATURES ON FRIDAY BUT STILL WELL ABOVE NORMAL.
953 PM CST THU FEB 18 2016 LATE EVENING SURFACE MAP SHOWED A 988MB LOW PRESSURE OVER THE NORTHERN HIGH PLAINS WITH LOW LEVEL PRESSURE TROF EXTENDING SOUTH INTO THE TX PANHANDLE. 1038MB PRESSURE RIDGE WAS CENTERED OVER NEW YORK. WITH A PRESSURE TROF EXTENDING SOUTH DOWN THE EASTERN SEABOARD. THIS WILL ALLOW LOW TEMPERATURES TO BE MUCH WARMER THAN LAST NIGHT EVEN UNDERNEATH CLEAR SKIES. A COLD FRONT WILL SINK SOUTHWARD OUT OF THE PLAINS ON FRIDAY AND STALL OUT OVER THE I-44 CORRIDOR IN MISSOURI.
THE PRESSURE-RISE COMPONENT WILL ENCOURAGE THE DOWNWARD MOMENTUM TRANSFER OF STRONG WINDS IN THE IMMEDIATE WAKE OF THE COLD FRONT. WE WILL INCLUDE A WIND ADVISORY FOR THE NRN PORTION OF OUR AREA FROM 19/06Z-19/18Z WHERE THE HIGHEST PROBABLY OF STRONG SURFACE WINDS WILL EXIST.
WITH HIGH PRESSURE IN CONTROL PROMOTING A MOSTLY CLEAR SKY. ALLOW LOWS TO DROP INTO THE LOW TO UPPER 30S ACROSS MUCH OF THE VALLEY. WITH MOST PLACES REMAINING JUST ABOVE THE FREEZING MARK. CHATTANOOGA AIRPORT, TN 39 63 47 62 / 0 0 20 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 34 61 46 59 / 0 0 20 40 OAK RIDGE, TN 35 63 46 59 / 0 0 20 30 TRI CITIES AIRPORT, TN 31 58 40 56 / 0 0 20 30.
No fog worries tonight as we sit west of high pressure over the mid Atlantic providing us with brisk southeasterly breezes and strong southerly flow just off the surface.
BASED ON RECENT REAL-TIME DATA AND INCOMING COMPUTER SIMULATIONS HAVE RECENTLY EXPANDED THE HIGH WIND WARNING TO ALSO INCLUDE PUBLIC ZONES 78/79/84 AND 85 AS WELL AS EXTENDING ALL HIGH WIND HIGHLIGHTS TO 12Z FRIDAY. THE HIGHEST WINDS SHOULD BE NOTED ALONG AND WEST OF INTERSTATE 25. ESPECIALLY NEAR THE HIGHER TERRAIN.
537 PM EST THU FEB 18 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION OVERNIGHT.
MID-LEVEL RIDGE CONTINUES TO STRENGTHEN AS SEEN ON WATER VAPOR IMAGERY AND WILL CONTINUE TO BUILD EAST OVERNIGHT. HIGH CLOUDS SPILLING OVER THE UPPER RIDGE WILL ALSO MOVE EAST WITH GENERALLY CLEAR SKIES EXPECTED. TEMPS WERE ON TRACK TONIGHT AS WELL AND EXPECTED TO DROP INTO THE LOWER TO MIDDLE 40S.
825 PM CST THU FEB 18 2016 HIGH PRESSURE OVER THE EASTERN U.
610 PM CST THU FEB 18 2016 UPPER LEVEL RIDGE DOMINATING THE PLAINS WITH A THERMAL RIDGE AXIS ACROSS THE HIGH PLAINS TODAY. PACIFIC COLD FRONT HAS STARTED TO CROSS THE ROCKIES. A PACIFIC COLD FRONT WILL MOVE ACROSS THE AREA OVERNIGHT. WILL GO AHEAD AND UPGRADE PORTIONS OF CWA FROM THE HIGH WIND WATCH TO A HIGH WIND WARNING. EVEN THOUGH WE SEE A COLD FRONTAL PASSAGE OVERNIGHT. THE FAST MOVING PACIFIC FRONT WILL ONLY BRING SLIGHTLY COOLER TEMPS FOR FRIDAY. SHOULD SEE MORE SUN AND SIDED WITH THE WARMER GUIDANCE.
816 PM EST THU FEB 18 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION OVERNIGHT.
THE UPPER LEVEL TROUGH WILL CONTINUE TO BRING SHOWERY WEATHER AND COOL CONDITIONS TONIGHT. ANOTHER COLD FRONT WILL BRING GUSTY WINDS AND A PERIOD OF HEAVY RAIN FRIDAY MORNING.
1021 PM EST THU FEB 18 2016 A WARM FRONT OVER THE MISSISSIPPI VALLEY WILL LIFT NORTHWARD ACROSS THE GREAT LAKES. LOW PRESSURE WILL CROSS THE NORTHERN GREAT LAKES ON FRIDAY WITH AN OCCLUDED FRONT DROPPING ACROSS THE AREA AND BECOMING STATIONARY FRIDAY NIGHT.
754 PM MST THU FEB 18 2016 LATEST SFC ANALYSIS SHOWS LOW PRESSURE CENTERED OVER THE FAR SOUTHEASTERN CORNER OF MONTANA WITH A WARM FRONT. AS RIDGE OVER THE CENTRAL CONUS SHIFTS EASTWARD. AND LIGHTER WINDS/COOLER TEMPS TO THE NORTH. SWEEPING A COLD FRONT THROUGH THE CWA IN THE EVENING. HAVE ADDED SOUTH CENTRAL SD TO THE HIGH WIND WARNING. TEMPS WILL BE COOLER.
643 PM EST THU FEB 18 2016 HIGH PRESSURE WILL BUILD IN THROUGH TONIGHT. A WARM FRONT WILL APPROACH FRIDAY NIGHT.
LATE EVENING LOCAL SOUNDING SHOWS A DEEP NORTHERLY WIND ALOFT THROUGH THE UPPER LAYERS AS RIDGING IS PITCHING THROUGH THE LOWER MS VALLEY.
SOUTHERLY WINDS WILL REMAIN IN PLACE ACROSS ARKANSAS WITH A RIDGE OF HIGH PRESSURE CENTERED OVER THE STATE. A COLD FRONT WILL APPROACH THE STATE ON FRIDAY.
MOVED UP THE START TIME OF THE HIGH WIND WARNING. TEMPERATURES WILL BE WARMER THAN AVERAGE THE NEXT COUPLE OF DAYS DUE IN PART TO THE GOOD MIXING AND ALSO TO ALMOST FLAT FLOW ALOFT. COOLER TEMPS WILL ACCOMPANY THE TROUGH AS WILL A SLIGHT CHANCE FOR SOME LIGHT SNOW ACROSS THE EAST.
741 PM MST THU FEB 18 2016 THE COLD FRONT HAD MOVED TO A KLXV-20W KCEZ LINE BY 7 PM THIS EVENING. THESE WINDS ARE AHEAD OF A VIGOROUS COLD FRONT THAT AT 2PM HAD MOVED INTO NORTHEAST UT. UDOT WEBCAMS ALONG 191 INDICATED SNOW AND BLOWING SNOW ALONG THE RIDGE OF THE EASTERN UINTAS. TEMPERATURES WILL BE A LITTLE COOLER MOST PLACES AS COMPARED TO TODAY'S.
834 PM EST THU FEB 18 2016 HIGH PRESSURE WILL MOVE EAST OF THE REGION OVERNIGHT.
WHILE CONFIDENCE IN THE LOW CIGS IS HIGH. THE CONFIDENCE IN THE LOWER VISIBILITY IS LOW TO MODERATE.
637 PM EST THU FEB 18 2016 HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND.
A WEAK COLD FRONT WILL ENTER OKLAHOMA TOMORROW MORNING.
LARGE DRY SLOT IN THE WAKE OF WEEKEND UPPER TROUGH HAS OUR SFC WINDS NW-SW 5-15KTS. ANOTHER SHORT WAVE IN THE PATTERN IS WORKING OVER THE FOUR CORNERS ATTM AS FRESH HIGH PRESSURE DROPS DOWN THE FRONT RANGE.
UA RIDGING WILL BE THE DOMINATE SYNOPTIC SCALE FEATURE FOR TODAY THUS ALLOWING FOR A MUCH QUIETER. THE PRESENCE OF THE UA RIDGE WILL BE RATHER BRIEF AS ANOTHER UA LOW APPROACHES THE REGION FROM THE WEST TONIGHT. DEEPENING SFC LEE TROUGHING IN RESPONSE TO THE APPROACHING UA LOW WILL RESULT IN SFC WINDS REMAINING ON THE BREEZY SIDE. WATER VAPOR IMAGERY SHOWING THE NEXT UPPER TROUGH OVER THE WRN CONUS. THIS TROUGH WILL PRODUCE A CLOSED LOW OVER THE 4-CORNERS BY THIS EVENING AS A STRONG UPPER JET STREAK DIVES INTO THE BASE OF THE TROUGH. AS THIS JET STREAK ROUNDS THE BASE OF THE TROUGH TONIGHT.
DEW POINTS AHEAD OF THE COLD FRONT WERE IN THE 50S AND WERE IN THE 30S AND 40S ACROSS THE SOUTHERN PLAINS AND LOWER MISSISSIPPI VALLEY. THE WIDESPREAD RAIN BECOMES MORE SHOWERY ONCE THE COLD FRONT MOVES THROUGH.
152 PM CST MON DEC 14 2015 Yet another warm/dry across the CWFA as downslope winds aid in surface pressure falls across Ern NM and the amplification of a low level thermal ridge. Meanwhile a broad upper low is slowly moving thru the Ern Great Basin and e of the 4-Corners region by 12Z. This upper low will push out a dry Pacific front arriving in the w around 06Z and in the e around 12Z. Despite the downslope winds Tue in will be cooler largely in part to Hypsometric considerations. Thickness will rise Fri along with some MSLP falls, so warmer M50s to M60s. Warmer yet Sat-Sun supported by ensemble + temp departures from 85h-5h. Warm and dry today with RH/s of 15-20 pct across the lower elevations of Trans Pecos/SE NM.
ALLOWING OVERNIGHT LOWS TO FALL MAINLY INTO THE LOWER TO MID 40S. AN UPPER LVL TROUGH OVER THE THE MID ROCKIES.
THE CLEAR SKIES SHOULD LAST FOR AT LEAST A FEW HOURS BEFORE CLOUDS FROM THE UPPER LEVEL LOW MOVE INTO OUR AREA. THERE IS A SLIGHT CHANCE FOR SOME LIGHT SHOWERS IN THE NORTHERN MOST COUNTIES TONIGHT BUT OVERALL THINGS SHOULD BE DRY THROUGH THE SHORT TERM PERIOD AS SFC/MID LEVEL RIDGING TAKES OVER. BUT EITHER WAY A SHIFT TO MORE WESTERLY WIND DIRECTION SHOULD INTRODUCE COOLER AIR THAN WE HAVE SEEN THE PAST FEW NIGHTS. WE WILL SEE CLEARING SKIES FROM SOUTH TO NORTH AS THE HIGH PRESSURE BUILDS INTO THE REGION.
LARGE DRY SLOT IN THE WAKE OF WEEKEND UPPER TROUGH HAS OUR SFC WINDS NW-SW 5-15KTS. VFR TUES AS A SHORT WAVE IN THE PATTERN IS WORKING OVER THE FOUR CORNERS ATTM AS FRESH HIGH PRESSURE DROPS DOWN THE FRONT RANGE.
SHOWERS WILL DIMINISH MIDDAY AS AS A DISTURBANCE OVER FAR SOUTHWEST WASHINGTON MOVES AWAY SOUTHEAST AWAY FROM THE AREA AND WEAK HIGH PRESSURE BUILDS INTO THE REGION.
DIDNT THROW IN ANY FZDZ SUCH AS DOESNT APPEAR TO BE ENOUGH LIFT IN THE LOWEST LAYERS FOR ITS PRODUCTION. LOW PRESSURE WILL BE OVER NEBRASKA AT THAT TIME AND THERE WILL BE A SHARP INCREASE IN FRONTOGENESIS AND LIFT TO MOVE INTO SE ND IN THE NR 03Z AND LIFT NORTH INTO NRN AREAS BY 09Z. ALTHOUGH GFS IN PARTICULAR INDICATES A SECOND HEAVIER AREA OF SNOW IN PARTS OF WCNTRL MN RIGHT WEST OF THE UPPER LOW CENTER.
/ISSUED 437 AM CST MON DEC 14 2015/ THE STRONG UPPER LEVEL LOW PRESSURE SYSTEM RESPONSIBLE FOR A VARIETY OF WEATHER THE PAST COUPLE DAYS.
THE CENTER OF LOW PRESSURE LIFTS INTO THE GREAT LAKES AND TOWARD NEW ENGLAND OVERNIGHT. ADDITIONAL CLOUD COVER WILL MOVE BACK IN LATER THIS EVENING AND OVERNIGHT AS THERE IS STILL PLENTY OF CLOUD COVER ON THE BACKSIDE OF THIS LOW. SOME RESIDUAL CLOUD COVER WILL HANG AROUND NETN AND SWVA TOMORROW AS THE LOW CONTINUES TO PULL AWAY. HIGH PRESSURE BEGINS TO BUILD BACK IN TOMORROW AND EARLY MORNING CLOUDS SHOULD DISSIPATE GIVING WAY TO SUNSHINE AND HIGHS IN THE LOW TO MID 60S. WE START OUT UNDER AN UPPER RIDGE. THEN THE RIDGE SHIFTS EAST AS AN UPPER TROUGH DIGS IN AND A COLD FRONT SWINGS THROUGH.
Scattered showers will move back into/develop in the forecast area this afternoon as the upper low lifts toward western MI. Strong low pressure, currently centered over eastern Iowa, will continue to impact central and southeast Illinois today. The cold front associated with the system currently extends southeast across northern Illinois, and has already cleared entire forecast area. That being said, daytime highs will still be well above normal, in the lower 50s, for the middle of December. However, the upper low/cold pool driving the surface system is still centered near the KS/MO border area.
CLEAR SKIES CURRENTLY PREVAIL OVER MUCH OF THE ENTIRE STATE OF TEXAS AS THE STATE TEMPORARILY RESIDES UNDER THE INFLUENCE OF BROAD HIGH PRESSURE SITUATED BETWEEN TROUGHS OF LOW PRESSURE TO OUR EAST AND WEST. THE FLOW HAS BECOME SOUTHEASTERLY IN RESPONSE TO HIGH PRESSURE SHIFTING NORTHEAST INTO THE NORTHERN GULF.
As of mid-afternoon, water vapor imagery with 500 mb heights showed a deep anomalous closed low near Chicago with plume of high PWATS extending along the eastern seaboard. Meanwhile, another vigorous closed low lies over the intermountain West. Wrap around cyclonic showers were rotating through the lower Ohio Valley with temperatures in the mid 50s. Plan on mostly cloudy to overcast skies with lows in the low/mid 40s.
CHANGES WILL TRY TO OCCUR TOWARD TUESDAY AM AS DEEPER SOUTHERLY FLOW STRENGTHENS WITH APPROACHING UPPER STORM IN THE ROCKIES AND SFC COLD FRONT PASSAGE BY EARLY PM ON TUE. A COLD FRONT WILL REACH KDRT BY 12Z TUESDAY. THIS WILL LEAD TO AFTERNOON HIGH TEMPS REBOUNDING INTO THE LOW TO MID 70S.
344 PM CST MON DEC 14 2015 INTENSE LOW PRESSURE SYSTEM THAT BROUGHT RECORD RAINFALL TO IOWA. THE PRESSURE GRADIENT WILL DECREASE OVERNIGHT WITH THE STATE BETWEEN THE DEPARTING LOW PRESSURE TO THE NORTHEAST AND THE NEXT SYSTEM DEVELOPING ON THE LEE SIDE OF THE ROCKIES. BEST FOG POTENTIAL IS ACROSS THE WEST AND SOUTHWEST WHERE THE GRADIENT WEAKENS THE MOST TO NEARLY A DEFAULT RIDGE BETWEEN THE TWO SYSTEMS. ANOTHER LOW PRESSURE SYSTEM WILL BEGIN TO AFFECT THE AREA TUESDAY. AND IF TEMPERATURES ARE NEAR OR BELOW FREEZING. ESPECIALLY TUESDAY NIGHT MAY HAVE CHANCES FOR FREEZING RAIN OR DRIZZLE. FAVORING LATER ONSET TO PRECIPITATION ALLOWING FOR ICE INTRODUCTION IN THE NORTHWEST AND WARMER TEMPERATURES ELSEWHERE.
LOWS TONIGHT WILL BE A FEW DEGREES WARMER AS WESTERLY SURFACE WIND REMAINS UP OVERNIGHT OFFSETTING ANY RADIATIONAL COOLING THAT WOULD OCCUR UNDER EXPECTED CLEAR SKIES. COOLER AIR WILL START TO PUSH IN BEHIND A PACIFIC FRONT WHICH COULD LIMIT MIXING AND ALSO KEEP WIND SPEEDS JUST UNDER ADVISORY CRITERIA.
WITH DRY WEATHER EXPECTED THIS EVENING THROUGH TUESDAY AS HIGH PRESSURE BRIEFLY MOVES INTO THE AREA. IT WILL BE COOLER TOMORROW THAN THE LAST COUPLE DAYS. BUT STILL HIGHS WILL STILL BE AROUND 10 DEGREES ABOVE NORMAL IN THE LOW 40S.
1244 PM EST MON DEC 14 2015 A COLD FRONT WILL MOVE ACROSS THE REGION THROUGH EARLY AFTERNOON.
1042 AM CST MON DEC 14 2015 Previous update reflected removing pops from northwest Arkansas and adjusting sky condition as the upper low continues to lift further northeast away from the forecast area.
A COLD FRONT WILL MOVE THROUGH THE MID-ATLANTIC STATES THIS EVENING.
232 PM CST MON DEC 14 2015 THE STRONG UPPER LOW THAT BROUGHT THE HEAVY RAIN/WINTER WX TO THE REGION OVER THE WEEKEND IS NOW APPROACHING THE GREAT LAKES. LOW PRESSURE IS STACKED UNDER THE UPPER LOW OVER THE GREAT LAKES WITH A TROUGH EXTENDING FROM THE LOW INTO THE NORTHERN MO. UPPER LOW OVER THE GREAT BASIN WILL APPROACH THE PLAINS TONIGHT AND BY 18Z TUE WILL BE OVER NW KS/SW NEBRASKA. THE BEST SNOW CHANCES WITH THIS SYSTEM WILL BE OVER THE HIGH PLAINS OF NEBRASKA AND WY. MAY END UP INSERTING SOME FLURRIES WITH FUTURE FORECASTS THU AS SOME ENERGY DIVES DOWN THE BACKSIDE OF THE TROUGH.
351 PM EST MON DEC 14 2015 GUSTY WINDS ALONG A QUICK MOVING COLD FRONT THIS AFTERNOON.
1011 AM CST MON DEC 14 2015 A 984 MB LOW PRESSURE SYSTEM IS LOCATED OVER THE UPPER MISSISSIPPI VALLEY THIS MORNING. WINDS WILL START TO DIMINISH LATER THIS AFTERNOON AS LOW PRESSURE TRACKS INTO THE GREAT LAKES AND WEAK SURFACE RIDGING STARTS TO BUILD INTO THE REGION. TEMPERATURES WILL BE A BIT COOLER TODAY.
COLDER AIR WILL SPILL IN ON THE BACKSIDE OF THE LOW PUT ANY CHANGE OVER TO SNOW WILL BE BRIEF AND NOT AMOUNT TO MUCH IN THE WAY OF ACCUMULATION. IT WILL ALSO BE QUITE BREEZY TODAY AS THE LOW PULLS OUT. TONIGHT WILL BE COOLER AND THERE IS A GOOD POSSIBILITY THAT THERE WILL BE FOG AS HIGH PRESSURE BUILDS INTO THE REGION.
SW sfc flow will gradually veer to W as a cold front moves thru the area near the end of the forecast. /issued 310 AM CST MON DEC 14 2015/ One upper low is departing the area but another will quickly follow tonight. The first low has scoured out the low level moisture so there will not be a chance for rain with this next system, though there will be a return of strong winds to the Guadalupe Mountains. Today will be the warmest day of this forecast period as the next upper low brings a cold front that will keep cooler air in the region through the week. Tuesday will be windy behind the cold front, then a broad upper ridge will help the winds diminish the latter half of the week.
103 PM EST MON DEC 14 2015 A FEW SHOWERS ARE POSSIBLE THIS AFTERNOON UNDER THE INFLUENCE OF AN INTENSE UPPER LOW CENTER. COOLER AIR WILL CONTINUE TO SPREAD INTO THE REGION WITH SLOWLY FALLING TEMPERATURES THIS AFTERNOON.
221 PM CST MON DEC 14 2015 THE STRONG AREA OF LOW PRESSURE CIRCULATING EAST INTO THE GREAT LAKES REGION HAS CONTINUED TO DRAG LOWER CLOUDS REALLY CLOSE TO THE FORECAST AREA AS OF 20Z THIS AFTERNOON. LOW LEVEL DRYING HAS LIMITED THE LOW CLOUDS FROM MAKING IT INTO THE FORECAST AREA AND WILL CONTINUE WITH MOSTLY CLEAR TO CLEAR CONDITIONS TONIGHT. TEMPS THIS AFTERNOON HAVE BEEN SLOWLY RISING TO THE MID 60S AND EXPECT TEMPS TO FALL TO NEAR GUIDANCE VALUES OF THE LOW TO MID 40S BY TUESDAY MORNING.
135 PM EST MON DEC 14 2015 GUSTY WINDS ALONG A QUICK MOVING COLD FRONT THIS AFTERNOON.
259 PM CST MON DEC 14 2015 VISIBLE SATELLITE IMAGERY SHOWS CLOUDLESS SKIES ACROSS SOUTHEAST TEXAS THIS AFTERNOON AS A RESULT OF SUBSIDENCE OVERSPREADING THE REGION IN THE WAKE OF YESTERDAY/S UPPER LOW. MOISTURE WILL SLOWLY BEGIN RETURNING OVERNIGHT AS SOUTHERLY ONSHORE FLOW RESUMES AND THIS WILL KEEP OVERNIGHT LOWS A FEW DEGREES WARMER THAN WHAT WAS OBSERVED THIS MORNING. WITH TEMPERATURES FALLING INTO THE LOW 50S INLAND AND MID 60S ALONG THE COAST. ANOTHER UPPER LOW SWINGING ACROSS THE ROCKY MOUNTAINS INTO THE CENTRAL PLAINS IS EXPECTED TO SEND A COLD FRONT INTO THE REGION.
TODAY THROUGH TUESDAY NIGHT A STRONG UPPER LOW IS MOVING INTO MISSOURI. NEXT SYSTEM IS CURRENTLY AN OPEN TROUGH DIGGING INTO THE WESTERN CONUS. AN AREA OF HIGH PRESSURE STRETCHES ACROSS THE DAKOTAS AGAIN. LIGHT EASTERLY WINDS AND PLENTY OF LOW LEVEL MOISTURE HAVE RESULTED IN WIDESPREAD DENSE FREEZING FOG ACROSS THE SD PLAINS. WITH PERIODIC REPORTS OF FREEZING DRIZZLE. FORECAST SOUNDINGS ARE INDICATIVE OF MORE PATCHY FREEZING DRIZZLE. ESPECIALLY ACROSS CENTRAL SD WITH A WARMER INVERSION. LOW PRESSURE SYSTEM STRENGTHENS TODAY AS IT SHIFTS OVER THE ROCKIES. TROUGH BECOMES NEGATIVELY TILTED TONIGHT AS 700MB LOW MOVES OVER NORTHEASTERN CO AND BEGINS TO TRANSITION NORTHEASTWARD THROUGH THE CENTRAL PLAINS. ENHANCED FORCING OVER THE SOUTHERN PLAINS NEARER THE LOW MAY RESULT IN AMOUNTS CLOSER TO 8-10 INCHES THERE. AS UPPER LOW LIFTS NORTHEAST.
A cold front extends from a stacked area of low pressure over the Great Lakes region, through the Ohio and Tennessee Valleys, into the Southeast.
THE LOW PRESSURE SYSTEM BRINGING THE SNOW IS CENTERED ALONG THE ID/NV/UT BORDER AND WILL ONLY MAKE SLOW EASTWARD PROGRESS TODAY, KEEPING A STEADY FLOW OF MOISTURE FOR ADDITIONAL SNOWFALL THROUGH THE DAYTIME HOURS TODAY AND INTO THIS EVENING. LATEST WATER VAPOR IMAGERY SHOWS A MID/UPPER LEVEL LOW SPINNING OVER NORTHERN NEVADA WITH A PLUME OF MOISTURE SURGING NORTH INTO MONTANA.
313 PM CST MON DEC 14 2015 SUNNY SKIES PREVAIL ACROSS NORTH TEXAS THIS AFTERNOON WITH TEMPERATURES RANGING FROM THE LOWER 60S NEAR THE RED RIVER TO THE LOWER 70S SOUTH AND WEST OF THE METROPLEX. THE UPPER TROUGH TO THE WEST WILL SPREAD SOME FORCING FOR ASCENT ACROSS THE AREA TOMORROW AFTERNOON. A COLD FRONT WILL ALSO MOVE IN FROM THE WEST. THE COMBINATION OF FORCING FROM THE UPPER TROUGH AND THE FRONT ALONG WITH SOME MOISTURE SHOULD BE SUFFICIENT FOR A FEW SHOWERS TO DEVELOP TOMORROW AFTERNOON AND EVENING MAINLY ACROSS THE SOUTHEAST HALF OF THE CWA.
1239 PM EST MON DEC 14 2015 GUSTY WINDS ALONG A QUICK MOVING COLD FRONT THIS AFTERNOON.
AM EXPECTING TEMPS TO GAIN TOWARD THE FREEZING MARK AND NOT CREATE LONG-LIVED IMPACTS DURING THE 10AM TO 4PM HOURS. BUT THE UINTA BASIN IS QUITE COLD AND MOISTURE IS BEING PUMPED UP WITH THE CENTER OF THE LOW PRESSURE SYSTEM IN IDEAL POSITION TO ALLOW 2 TO 5 INCHES TO ACCUMULATE IN THE VALLEY AGAIN. THIS CLOSED LOW WILL BE NEAR THE FOUR-CORNERS REGION THIS EVENING AND WILL MOVE SLOWLY EAST OVER THE HIGH PLAINS BY LATE TOMORROW. WARMER TEMPERATURES AT THE LOWER ELEVATIONS SHOULD LIMIT ACCUMULATIONS BELOW ADVISORY CRITERIA.
421 PM EST MON DEC 14 2015 A COLD FRONT TRAILING GREAT LAKES LOW PRESSURE WILL MOVE EAST TONIGHT. HIGH PRESSURE AND A DRY AIRMASS ARE EXPECTED FOR TUESDAY.
WEAK UPPER LEVEL ENERGY AND APPROACHING COLD FRONT WOULD PROVIDE THE SUPPORT TO PRODUCE A FEW SHOWERS.
HIGH PRESSURE AND A DRIER AIRMASS MOVES IN BEHIND THIS SYSTEM AND CLEARS THINGS OUT THROUGH THE REST OF THE SHORT TERM. THERE IS NOT A LOT OF COOLER AIR BEHIND THIS FRONT SO NOT EXPECTING TEMPS TO DIP MUCH LOWER THAN THEY HAVE BEEN OVER THE PAST FEW DAYS.
A Pacific air mass will move in, bringing cooler temperatures with highs only in the 40s this afternoon. It will be nice to see some sunshine later today as the upper low exits east. Cooler air means overnight lows falling into the 30s tonight.
234 PM CST MON DEC 14 2015 Our region will be under a brief period of ridging between systems tonight and Tuesday.
ISSUED BY NATIONAL WEATHER SERVICE HUNTSVILLE AL 321 PM CST MON DEC 14 2015 HIGH PRESSURE CONTINUES TO GRADUALLY SHIFT NWD OUT OF THE NWRN GULF IN THE WAKE OF A COLD FRONTAL PASSAGE EARLY THIS MORNING. WITH TEMP TRENDS REMAINING SEASONABLY WARM THX IN PART TO A WEAK RIDGE PATTERN QUICKLY LIFTING OVER THE SE STATES. THIS SHOULD ALSO ALLOW GULF MOISTURE TO QUICKLY FILL BACK INTO THE LOWER MS VALLEY HEADING INTO MID WEEK. THIS STILL LOOKS TO PUSH A COLD FRONT INTO THE CNTRL GULF REGION EARLY WED. SEASONABLY COOLER AND DRIER AIR IS THEN XPCTED BY THE END OF THE WORK WEEK. WITH THE GLOBAL MODEL SUITES HINTING AT A LARGE DOME OF HIGH PRESSURE OUT OF THE PLAINS STATES BUILDING EWD INTO THE REGION THU INTO FRI.
/ISSUED 1011 AM CST MON DEC 14 2015/ A 984 MB LOW PRESSURE SYSTEM IS LOCATED OVER THE UPPER MISSISSIPPI VALLEY THIS MORNING. WINDS WILL START TO DIMINISH LATER THIS AFTERNOON AS LOW PRESSURE TRACKS INTO THE GREAT LAKES AND WEAK SURFACE RIDGING STARTS TO BUILD INTO THE REGION. TEMPERATURES WILL BE A BIT COOLER TODAY.
308 PM CST MON DEC 14 2015 CONCERNS IN THE SHORT TERM ARE FOG FORMATION TONIGHT ALONG WITH SOME POSSIBLE FREEZING RAIN AHEAD OF THE WINTER STORM ON TUESDAY AFTERNOON. SOME LIGHT PRECIPITATION WILL BEGIN ACROSS THE WEST AND SOUTH TONIGHT AND WITH A LACK OF ICE CRYSTALS ALOFT THERE COULD BE SOME SCATTERED LIGHT FREEZING RAIN AREAS BUT LITTLE ACCUMULATION.
THE UPPER LOW RESPONSIBLE FOR THE WINTRY WEATHER WILL MOVE TO THE SOUTHEAST THROUGH TONIGHT WITH THE WINDS AND SNOWS SUBSIDING THIS EVENING. POST COLD FRONTAL WINDS AS WERE GUSTING TO 49 MPH AT TWF AND 38 MPH AT MUO AS OF 3 AM. RADAR/SATELLITE SHOWED AN UPPER LOW CIRCULATION OVER SW IDAHO WHICH WILL BE SLOW TO EXIT S-CENTRAL IDAHO TODAY WHERE A SNOW AND BLOWING SNOW ADVISORY WILL CONTINUE. TEMPERATURES DROPPED BELOW 32 ACROSS SOUTH CENTRAL IDAHO AND WILL CHANGE LITTLE TODAY DUE TO SNOW SHOWERS EXPECTED OVER FAR SE OWYHEE AND TWIN FALLS COUNTIES UNDER THE UPPER LOW.
A WEAK COLD FRONT WILL BRING A FEW RAIN SHOWERS AND POSSIBLY A THUNDERSTORM LATER TODAY.