Aikyam-Lab/Synoptic-Bench huggingface dataset:
1028 AM MST WED FEB 11 2015 FAST NORTHWEST UPPER LEVEL FLOW IN PLACE WITH TROF TO THE EAST AND RIDGE BUILDING TO THE WEST. TODAY THROUGH THURSDAY NIGHT UPPER RIDGE IS AMPLIFYING OVER THE WESTERN CONUS AS TROUGH MAKES ITS WAY TO THE EAST COAST. COOLER BUT MORE SEASONABLE TEMPS ARE EXPECTED TODAY WITH A COLD AIRMASS OVER THE NORTHERN PLAINS. HIGHS WILL RANGE FROM NEAR 30 ACROSS NORTHWEST SD TO THE LOWER 40S IN NORTHEAST WY AND SOUTHWEST SD. CANADIAN LOW PRESSURE WILL HELP PUSH COLD AIR EASTWARD AND ALLOW WARMER AIR TO RETURN TO THE AREA ON THURSDAY.
246 PM MST WED FEB 11 2015 TONIGHT-THURSDAY: LATEST WATER VAPOR LOOP WAS SHOWING THE UPPER LEVEL RIDGE CONTINUING TO DOMINATE THE REGION. THERE IS SOME CIRRUS BEGINNING TO SPILL OVER THE RIDGE WHICH IS EXPECTED TO MOVE OVER THE AREA BEGINNING TONIGHT AND CONTINUING THROUGH TOMORROW.
140 PM EST WED FEB 11 2015 LOW PRESSURE WILL SLIDE THROUGH LOWER ONTARIO TONIGHT, SPREADING LIGHT SNOW INTO NY AND PA.
347 PM CST WED FEB 11 2015 A FEW SPRINKLES CAN BE EXPECTED THROUGH EARLY THIS EVENING BEHIND THE COLD FRONT.
214 PM MST WED FEB 11 2015 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.
NICE DAY IN STORE FOR CENTRAL ALABAMA WITH WEAK SFC RIDGING IN PLACE. TAKE SOME TIME TO ENJOY THE WARMER WEATHER BEFORE THE BIG COOL DOWN ARRIVES! 19 18Z TAF DISCUSSION. A STRONG COLD FRONT WILL MOVE THROUGH LATE TONIGHT.
FOG IN MTN VALLEYS WILL BURN OFF SLOWLY OWING TO THE HIGH CLOUDS PREVENTING FULL SUN. UPPER RIDGE WILL BUILD OVER THE REGION FOR DRY WEATHER THROUGH THURSDAY. PATCHY VALLEY FOG HAS BEEN OBSERVED IN BAKER CITY AND MCCALL AND IS ALSO POSSIBLE IN THE LOWER TREASURE VALLEY/UPPER WEISER BASIN THIS MORNING. FOG POTENTIAL DIMINISHES TONIGHT BUT STILL POSSIBLE IN THE LOWER TREASURE VALLEY AND LONG VALLEY.
141 PM CST WED FEB 11 2015 COLD FRONT PERCHED TO THE NORTH WILL BE HEADING THIS WAY AS WE MOVE THROUGH THE SHORT TERM.
1143 AM CST WED FEB 11 2015 COMBINATION OF SATL PIX/SFC OBS SHOWING EXTENSIVE LLVL CLOUD COVER MOVING ALONG WITH A COLD FRONT WITH THE LEADING EDGE OF THE BNDRY EXTENDING FROM ABOUT SRN IA TO NW KS.
1153 AM CST WED FEB 11 2015 POLAR COLD FRONT IS MOVING THROUGH THE CWA THIS MORNING.
326 PM EST WED FEB 11 2015 WEAK LOW PRESSURE WILL APPROACH FROM THE WEST TONIGHT AND WILL SLOWLY CROSS THE REGION ON THURSDAY. LOW PRESSURE WILL REDEVELOP OFFSHORE WELL SOUTH OF NEW ENGLAND THURSDAY NIGHT AND WILL RAPIDLY INTENSIFY AS IT MOVES NORTHEAST OVERNIGHT.
1019 AM CST WED FEB 11 2015 THE FORECAST IS GENERALLY ON TRACK WITH WEAK HIGH PRESSURE OVER THE AREA. WARMER THAN NORMAL TEMPERATURES ARE EXPECTED TODAY AND TONIGHT THEN TURNING MUCH COLDER THURSDAY AND THURSDAY NIGHT. EARLY MORNING SURFACE ANALYSIS HAD A RIDGE AXIS JUST TO THE NORTHWEST OF OUR CWA. THIS RIDGE WILL WEAKEN OVER OUR CWA TODAY. THE CLOSED LOW WILL DROP SOUTH OVER THE DESERT SOUTHWEST TODAY AND HELP BRING A FEW HIGH AND MID CLOUDS OUR WAY. THE WEAK DRY COLD FRONT WILL DROP INTO OUR NORTHWEST ZONES AROUND MIDNIGHT TONIGHT AND DRIFT THROUGH OUR CWA THURSDAY MORNING.
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.
THE WINDS AND COOLER TEMPS ARE MAKING IT FEEL EVEN COOLER WITH WIND CHILLS IN THE 30S IN MANY PLACES. COOLER WIND CHILLS WILL CONT THIS AFTERNOON. THE MAIN RESULT WILL BE COOLER TEMPERATURES TODAY INTO THURSDAY.
/ISSUED 837 AM CST Wed Feb 11 2015/ Update to begin the High Wind Warning in the Guadalupe Mountains earlier. A cold front continues to push south into west Texas this morning with gusty winds behind it delayed somewhat, except over southeast New Mexico where surface pressure rises are nearly 2 mb/hr. Considering the hefty surface pressure rises over southeast New Mexico, have decided to begin the High wind Warning in the Guadalupes at 11/15Z. Will go ahead and update the forecast to begin the High Wind Warning earlier.
THIS IN ADVANCE OF A PRE-FRONTAL TROF AND ARCTIC COLD FRONT. THE AREA WILL REMAIN IN THE STRONGLY SUBSIDENT REGION SW OF THE POTENT VORTICITY MAXIMUM/UPPER JET STREAK/TROF OVER THE OH VALLEY AND UPPER CUMBERLAND REGION, SO PRECIP IS VERY UNLIKELY IN THE LOWER/MIDDLE TN VALLEY.
TONIGHT THE UPPER LEVEL LOW WILL SLIDE EAST TOWARDS ARKANSAS AND BRING A SECOND ROUND OF PRECIPITATION EARLY FRIDAY. OVERNIGHT LOW TEMPERATURES WILL REMAIN JUST ABOVE FREEZING ACROSS CENTRAL ARKANSAS AND A RAIN SNOW MIX WILL BE POSSIBLE. TEMPERATURES WILL LOWER TO NEAR FREEZING.
TEMPERATURES IN SOME LOCATIONS COULD GET CLOSE TO RECORD HIGHS, BUT MUCH WILL DEPEND ON THE EXTENT OF THE LOW CLOUDS AND FOG AND HOW QUICKLY THEY WILL BURN OFF. KRBG AND KMFR WILL BE AFFECTED BY THE LOWER CONDITIONS. HIGH PRESSURE NOW BUILDING OVER THE WATERS WILL PERSIST THROUGH THE WEEKEND.
1122 PM CST THU JAN 22 2015 QUIET AND MILD WEATHER IN THE SHORT TERM AS HIGH PRESSURE CONTINUES TO MOVE TO THE EAST WITH SOUTH SOUTHWEST FLOW DEVELOPING AHEAD OF THE NEXT TROUGH THAT MOVES IN FRIDAY.
1258 AM EST FRI JAN 23 2015 HIGH PRESSURE WILL BUILD EAST ACROSS THE THE OHIO VALLEY. OFFERING SLIGHTLY COOLER AND DRY CONDITIONS THROUGH THE REST OF THE WEEK.
HIGH PRESSURE OVER CALIFORNIA WILL STRENGTHEN FROM FRIDAY INTO THE WEEKEND.
SHORT TERM: (Through Late This Afternoon) A low pressure system moving through the southern CONUS will have very little effect on today's weather except for an increase in high level clouds across the southern CWA. Intermittent periods of clouds and not a particularly strong cold front later will yield min temps above normal for this time of year, with mid-upper 20s.
FEEDING INTO BROAD RIDGING ALONG THE WEST COAST. STRONG WESTERLY FLOW WITH THIS SYSTEM ACROSS THE NRN PLAINS HAS TAPPED SOME OF THE "WARMER" AIR IN THE WESTERN CONUS. WITH A TONGUE OF WARMER AIR ALOFT NOW PRESSING INTO THE UPPER MIDWEST/FAR WESTERN GREAT LAKES THIS MORNING. DESPITE AXIS OF WARMER AIR GETTING STRETCHED INTO NRN MICHIGAN TODAY. FORECAST THERMAL PROFILES ARE CERTAINLY COOLER THAN THEY WERE A FEW DAYS BACK.
SUBFREEZING TEMPERATURES WERE NOTED ABOVE ROUGHLY 2500 FT. WITH A DRY LAYER BELOW THE FREEZING LEVEL TO THE SURFACE. WETBULBING SHOULD OCCUR WITHIN THE BOUNDARY LAYER WITH THE FREEZING LAYER LOWERING TO BELOW 1000 FT. SURFACE TEMPERATURES APPEAR TO REMAIN ABOVE FREEZING. IT APPEARS THAT TRAVEL CONDITIONS SHOULD NOT BE HAMPERED MUCH WITH ABOVE FREEZING AIR AND ROAD TEMPERATURES. SURFACE ANALYSIS THIS AFTERNOON PLACES AN AREA OF LOW PRESSURE NEAR THE TEXAS GULF COAST.
1025 PM MST THU JAN 22 2015 AFTERNOON GOES WATER VAPOR ANIMATION DEPICTED A RATHER AMPLIFIED LARGE SCALE PATTERN ACROSS THE LOWER 48. A BROAD LOW AMPLITUDE RIDGE DOMINATED THE GULF COAST REGION. WITH A DEFORMATION ZONE STRETCHED OUT FROM NEW ENGLAND THROUGH THE MIDWEST TO A POTENT UPPER LEVEL TROUGH OVER SOUTHERN ROCKIES. A HIGH AMPLITUDE RIDGE EXTENDED FROM SOUTHERN CANADA INTO THE INTERMOUNTAIN WEST. A TROUGH BISECTED THE DAKOTAS INTO WESTERN NEBRASKA AND NORTHEAST COLORADO. A HIGH PRESSURE RIDGE STRETCHED FROM COLORADO TO IDAHO. TEMPERATURES RANGED FROM THE LOW 30S TO LOW 40S.
THIS WOULD LEAD ONE TO BELIEVE THAT FREEZING RAIN WOULD BE THE PRECIPITATION TYPE IF THERE IS ENOUGH LIFT. HAVE KEPT A MENTION OF SNOW ALONG WITH THE FREEZING RAIN CHANCES.
256 AM CST Fri Jan 23 2015 An upper level trough is currently located across western Texas early this morning and will track east into the Gulf coast states by tonight. Warmer conditions will occur this weekend as highs warm into the 50 both afternoons.
LOW PRESSURE DEVELOPING OVER THE NORTHERN GULF OF MEXICO WILL INCREASE THE GRADIENT ACROSS SOUTH FLORIDA WITH A SE SURFACE WIND INCREASING TO 12-15 KNOTS AFT 14-15Z. FARTHER INLAND, WEST AND SOUTH OF LAKE OKEECHOBEE, TEMPERATURES ARE FORECAST TO DIP INTO THE LOWER 60S BY DAYBREAK FRIDAY. AN AREA OF LOW PRESSURE ALONG THE NORTHERN GULF COAST WILL MOVE EAST NORTHEAST OVERNIGHT AND INTO THE FLORIDA PANHANDLE ON FRIDAY. /ISSUED 410 PM EST THU JAN 22 2015/ LOW PRESSURE IS DEVELOPING, AS EXPECTED, OVER THE WESTERN GULF OF MEXICO. THIS LOW WILL TRACK EAST NORTHEAST, TOWARDS THE FLORIDA PANHANDLE TONIGHT. AN ASSOCIATED WARM FRONT WILL BE WELL TO THE NORTH OF SOUTH FLORIDA AS IT DOES. AS THE ASSOCIATED COLD FRONT APPROACHES FRIDAY NIGHT, SHOWERS, AND POSSIBLY SOME THUNDERSTORMS, WILL BEGIN TO MOVE INTO THE AREA FROM THE GULF.
1155 PM EST THU JAN 22 2015 A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION OVERNIGHT.
UPPER RIDGE OF HIGH PRESSURE BUILDING IN OVER THE REGION WILL PROVIDE CLEARING CONDITIONS AND WARMER TEMPERATURES FOR THE WEEKEND.
422 AM EST FRI JAN 23 2015 HIGH PRESSURE OVER THE REGION WILL BE DISPLACED AS A TROUGH OF LOW PRESSURE DEVELOPS INTO EASTERN KENTUCKY TODAY AND THEN SUBSEQUENTLY MOVES OFF TO THE EAST TONIGHT.
300 AM MST FRI JAN 23 2015 FAIR AND DRY WEATHER IS EXPECTED TODAY AND OVER THE WEEKEND ALONG WITH GENERALLY WARMER TEMPERATURES.
318 AM CST FRI JAN 23 2015 UPPER LOW CURRENTLY SPINNING ACROSS W TX WILL EJECT NEARLY DUE E TODAY. MID LEVEL HEIGHTS WILL RISE SIGNIFICANTLY THROUGH THE WEEKEND IN THE WAKE OF THE EXITING UPPER TROF.
EVEN WITH TEMPERATURES WELL ABOVE FREEZING. AND ALTHOUGH IT IS NOT TRUE FREEZING RAIN. STILL IS RAIN THAT IS FREEZING. WILL NEED TO ISSUE A FREEZING RAIN ADVISORY FOR ALL AREAS EXPECTED TO RECEIVE -RA. FARTHER EAST WHERE TEMPS A BIT COOLER AND LAYER ALOFT A TAD LESS WARM SOME FREEZING RAIN IS PSBL. MOST MODELS TAKE BEST COVERAGE INTO THE RRV WHERE AIRMASS IS WARMER. FRIDAY NIGHT WILL BE A TAD COOLER AS WARM AIR ALOFT DROPS SOUTH AND WINDS ARE LIGHTER.
431 AM EST FRI JAN 23 2015 A WARM FRONT WILL LIFT ACROSS NORTHERN MAINE INTO TONIGHT WITH SOME LIGHT SNOW.
TEMPERATURES WILL LOWER TO NEAR FREEZING. TONIGHT THE UPPER LEVEL LOW WILL SLIDE EAST TOWARDS ARKANSAS AND BRING A SECOND ROUND OF PRECIPITATION EARLY FRIDAY. OVERNIGHT LOW TEMPERATURES WILL REMAIN JUST ABOVE FREEZING ACROSS CENTRAL ARKANSAS AND A RAIN SNOW MIX WILL BE POSSIBLE.
OVERRUNNING PRECIP IN THE FORM OF LIGHT TO MODERATE RAIN TO THE NORTH OF THE LOW CENTER WILL BLANKET CENTRAL ALABAMA THRU THE OVERNIGHT HOURS. WITH THE HIGHEST TOTALS IN THE SOUTH. BUT THE UPPER TROUGH AXIS WILL CROSS OVER THE AREA FRIDAY NIGHT WITH ANOTHER ROUND OF LIGHT PRECIPITATION. PERHAPS A SHORT BURST OF SNOW WITH THE PASSAGE OF THE UPPER TROUGH. FORECAST SOUNDINGS SORTA WAVER AROUND THE FREEZING MARK WITH ENOUGH MOISTURE IN THE COLUMN TO WARRANT KEEPING THE SLIGHT CHANCE/CHANCE WORDING. SURFACE TEMPERATURES WILL BE ABOVE FREEZING SO NO CHANCE OF ACCUMULATION.
350 AM CST FRI JAN 23 2015 THE UPPER LOW RESPONSIBLE FOR OUR PRECIPITATION EVENT WILL SWING THROUGH THE REGION TODAY. THE FROZEN HYDROMETEORS FULLY MELTED IN THE 2000FT LAYER ADJACENT TO THE GROUND THAT REMAINS ABOVE FREEZING. THE PRECIPITATION TODAY WILL BE ASSOCIATED WITH THE LARGE-SCALE LIFT APPROACHING WITH THE 500MB TROUGH. ANY SNOW WOULD POSE NO SIGNIFICANT IMPACTS TO TRAVEL AS SURFACE TEMPERATURES REMAIN ABOVE FREEZING. 25 /ISSUED 1143 PM CST THU JAN 22 2015/ /06Z TAF ISSUANCE/ UPPER LOW OVER FAR WEST TEXAS IS MAKING SLOW YET STEADY PROGRESS. WITH THE TROUGH AXIS EXPECTED TO BE ALONG OR EAST OF THE INTERSTATE 35 CORRIDOR BY MIDDAY FRIDAY. IN ASSOCIATION WITH THE APPROACHING UPPER LOW.
338 AM EST FRI JAN 23 2015 AREA OF LOW PRESSURE NEAR NEW ORLEANS AT THIS HOUR, WILL CONTINUE ON A TREK THROUGH THE PANHANDLE AND SOUTHEASTERN US TODAY. WITH PRIMARY SHRTWV AND BASE OF LONGWAVE UPPER TROUGH OVER SW TEXAS, COLD FRONT WILL ONLY GRADUALLY MOVE THROUGH THE GULF OF MEXICO THIS AFTERNOON.
303 AM CST Fri Jan 23 2015 Upper longwave trough axis was currently rotating over western Texas, progged to shift east later today. As this trough tracks over the Great Lakes region this afternoon, it will surge a weak cold front southward into northeast Kansas during the late afternoon. Despite the strong mixing of the boundary layer to 900 MB, the cooler temps aloft and increasing mid level clouds result in highs in the lower 50s. This will also keep lows a bit warmer in the upper 20s.
224 AM EST FRI JAN 23 2015 HIGH PRESSURE THROUGH FRIDAY MORNING.
A low pressure system will track from near the panhandle of Florida to the outer banks of North Carolina between 12Z (6 AM CST) this morning and 06Z (midnight CST) tonight. If temperatures were a bit warmer, this forecast would be fairly straight-forward, but with readings starting out around the freezing mark, and per 1000-850 MB critical thicknesses and model soundings, precipitation should start out as snow, but with QPF amounts being so light, expect little to no snow accumulation in the 12-15Z time frame. As the lower levels of the atmosphere begin to warm a few degrees starting around 15Z precipitation should become a rain/snow mix. Therefore only minor snow accumulations (< 1") are expected generally south and east of a line from Central City to Murray Kentucky with the highest probability over the far southern Pennyrile area.
1154 PM CST THU JAN 22 2015 UPPER LEVEL TROF AXIS POSITIONED JUST TO OUR WEST WILL PASS ACROSS WEST TEXAS OVER THE NEXT 6HRS.
1257 AM EST FRI JAN 23 2015 HIGH PRESSURE WILL BUILD INTO THE AREA THIS EVENING AND GIVE US A GENERALLY CLEAR AND COLD NIGHT FOLLOWED BY SUNSHINE FOR FRIDAY.
UPPER LEVEL RIDGE WILL REMAIN OVER THE REGION TONIGHT WITH A DRY AND STABLE AIRMASS REMAINING IN PLACE.
TEMPERATURES RIGHT AROUND FREEZING WITH DOT INDICATING ROAD SURFACE TEMPERATURES ABOVE FREEZING OVER SE ND. WILL BE SEEING VERY MILD START MOST AREAS AND WHILE COLUMN DOES COOL WE SHOULD STILL SEE MAXIMUM TEMPERATURES ABOVE FREEZING.
AN UPPER LEVEL TROUGH WILL PROGRESS EASTWARD, AWAY FROM KANSAS TODAY AND TONIGHT. TEMPERATURES WILL CONTINUE A GRADUAL WARMING TREND TODAY, WITH SUNNY SKIES AND WESTERLY DOWNSLOPE FLOW LEADING TO WARMER HIGHS IN THE UPPER 40S TO LOWER 50S. ON THE HIGH PLAINS, IT ONLY TAKES A BRIEF DROP OFF IN WINDS AT NIGHT FROM 10 TO 5 KTS TO RESULT IN A SHORT-LIVED, DOWNWARD SPIKE IN TEMPERATURES.
Even if weak cold air advection aloft can switch the precip to light snow early in the evening, sfc temps should remain above freezing until the precip comes to an end before midnight.
ALONG THE PARENT COLD CORE UPPER TROUGH AS IT APPROACHES THE REGION FROM THE W. SFC TEMPS WILL REMAIN WELL ABOVE FREEZING FRIDAY MORNING THUS NO ICE ACCUMULATIONS ARE EXPECTED.
135 AM EST FRI JAN 23 2015 A RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION OVERNIGHT.
ONE IN A SERIES OF MID LEVEL S/WV TROUGHS/CLIPPER SYSTEMS MOVING NOW SOUTHEAST TOWARDS NORTHERN MN/NORTHERN GREAT LAKES REGION. BOTH SURFACE/GROUND TEMPERATURES AND AIR TEMPERATURES BELOW FREEZING SO ANY PRECIPITATION THAT IS REACHING THE GROUND WILL FREEZE ON CONTACT.
ALTHOUGH PATCHY RAIN STILL OVER CENTRAL TX NEAR CORE OF UPPER LOW. WITH PERIODS OF -RA WITH REDUCED VSBYS EXPECTED EVEN THROUGH THE AFTERNOON AS A COLD CORE UPPER TROUGH SLOWLY MOVES THROUGH THE AREA. BUT ANY MIX THAT MAY FALL WILL NOT ACCUMULATE AS SFC TEMPS WILL REMAIN WELL ABOVE FREEZING. CURRENT WATER VAPOR LOOP IS INDICATING THE UPPER LOW CLOSING OFF OVER SW NM AS PACIFIC MOISTURE CONTINUES TO FEED NEWRD ALTHOUGH SOME DRY SLOTTING IS BEGINNING TO SHOW UP SOUTH OF THE LOW ACROSS NRN MEXICO. DUE TO THE RELATIVELY WARM GROUND TEMPERATURES AND AMBIENT TEMPERATURES STAYING JUST ABOVE FREEZING ON FRIDAY MORNING.
1149 PM EST THU JAN 22 2015 HIGH PRESSURE WILL EXPAND ACROSS THE LOWER GREAT LAKES TONIGHT THEN BUILD TO NEW ENGLAND ON FRIDAY.
1144 PM CST THU JAN 22 2015 UPPER AIR AND SATELLITE IMAGERY SHOW A SHARP WSW/ENE ORIENTATED UPPER LEVEL TROUGH AXIS DRAPED THROUGH THE CENTRAL PLAINS. HIGH PRESSURE EXTENDS FROM SRN IA INTO ERN CO. WITH A TROUGH AXIS EXTENDING SOUTH INTO WRN NEB FROM LOW PRESSURE OVER CENTRAL CANADA. THIS UPPER LEVEL TROUGH AXIS WILL CONTINUE TO SAG SOUTH OF THE CWA TONIGHT INTO TOMORROW. BUT THE LOWER LEVELS ARE EXPECTED TO REMAIN DRY. FORECAST HIGHS ARE IN THE LOWER 50S FOR THE MAJORITY OF THE CWA.
A LOW PRESSURE SYSTEM WILL TRACK BY DURING THE PERIOD.
1143 PM CST THU JAN 22 2015 /06Z TAF ISSUANCE/ UPPER LOW OVER FAR WEST TEXAS IS MAKING SLOW YET STEADY PROGRESS. WITH THE TROUGH AXIS EXPECTED TO BE ALONG OR EAST OF THE INTERSTATE 35 CORRIDOR BY MIDDAY FRIDAY. IN ASSOCIATION WITH THE APPROACHING UPPER LOW. AS WE NOW AWAIT THE STRONG DYNAMIC LIFT FROM THE UPPER TROUGH ITSELF WHICH WAS NOW MOVING ACROSS FAR WEST TEXAS. PALESTINE LINE BUT IT WOULD NOT BE ANYTHING OF SIGNIFICANCE WITH TEMPERATURES REMAINING ABOVE FREEZING. WE DO NOT ANTICIPATE ANY HIGHLIGHTS BUT AREAS WELL WEST-NORTH OF DFW MAY BRIEFLY HIT FREEZING AROUND DAYBREAK FRIDAY MORNING. SLOWING DOWN AS YOU APPROACH BRIDGES OR OVERPASSES ON YOUR MORNING COMMUTE STILL WOULD BE A GOOD IDEA.
1257 AM PST FRI JAN 23 2015 HIGH PRESSURE OVER THE PACIFIC WILL EXPAND INTO THE WEST COAST THIS WEEKEND.
339 AM EST FRI JAN 23 2015 HIGH PRESSURE OVER THE OHIO VALLEY/LOWER GREAT LAKES WILL MOVE OFF THE MID ATLANTIC COAST LATE TODAY.
THEN PRECIP MOVES BACK IN AS THE MAIN UPPER LEVEL TROUGH AXIS MOVES ACROSS THE AREA TONIGHT. COLDER AIR ARRIVES WITH THE TROUGH AXIS WITH TEMPS ALOFT DROPPING BELOW FREEZING NEAR/AFTER 06Z. TEMPS AT THE SURFACE REMAIN AT TO SLIGHTLY ABOVE FREEZING AROUND THE START OF ANY MIXED PRECIP. THERE MAY BE A FEW SLICK SPOTS ON SECONDARY ROADS AND ELEVATED SURFACES /BRIDGES AND OVERPASSES/.
High temperatures will range from the upper 30s across the east where clouds will persist longest to the lower 40s along/west of I-55 where sunshine will prevail this afternoon.
946 PM EST THU MAR 5 2015 A STRONG RIDGE OF HIGH PRESSURE WILL MOVE ACROSS THE NORTH COUNTRY OVERNIGHT.
1003 PM EST THU MAR 5 2015 ANALYSIS SHOWS WEAKENING HIGH PRESSURE ACROSS SOUTHERN FLORIDA AND THE KEYS LATE THIS EVENING. THE HIGH PRESSURE ACROSS SOUTH FLORIDA AND THE KEYS WILL CONTINUE TO WEAKEN OVERNIGHT WHILE SLIDING FURTHER INTO THE WESTERN NORTH ATLANTIC.
633 PM CST THU MAR 5 2015 HIGH CLOUDS CONTINUE TO STREAM OVER UPPER RIDGE BRINGING INCREASED CLOUD COVER MAINLY TO WESTERN PARTS OF THE AREA. A DRY WARM FRONT WILL CONTINUE TO PIVOT EAST ACROSS CENTRAL NORTH DAKOTA THIS AFTERNOON. WEAK WARM AIR ADVECTION WILL CONTINUE THROUGH FRIDAY LEADING TO WARMER FORECAST HIGHS THAN WHAT WAS OBSERVED TODAY.
HIGH PRESSURE HAS CONTINUED TO BUILD ACROSS THE REGION TONIGHT. MEANWHILE HIGH PRESSURE IS BUILDING EAST INTO EASTERN KENTUCKY. HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT AND CENTER ITSELF OVER THE AREA BY LATE TONIGHT. WILL CONTINUE AN SPS THROUGH EARLY TOMORROW MORNING ADDRESSING THE SLICK ROADS AND REFREEZING TONIGHT.
COOLER AND DAMP ON FRIDAY. COLD FRONT MOVING INTO NORTH CENTRAL FLORIDA THIS EVENING AS IT CONTINUES TO MOVE SOUTHEASTWARD. WINDS WILL QUICKLY VEER TO OUT OF THE NORTH BEHIND THE BOUNDARY AS HIGH PRESSURE BUILDS ACROSS THE SOUTHEAST. SUSPECT THE MODELS MAY BE UNDERPLAYING THE STRENGTH OF THE LOW LEVEL COLD DUE TO ITS VERY SHALLOW NATURE. VFR CONDITIONS EXPECTED THROUGH THIS EVENING WITH MVFR/IFR CIGS GRADUALLY DEVELOPING OVERNIGHT IN ASSOCIATION WITH AN APPROACHING COLD FRONT. SOUTHERLY WINDS WILL SHIFT TO SOUTHWEST/WEST THIS EVENING AND NORTHWEST/NORTH LATE OVERNIGHT WITH THE APPROACH AND PASSAGE OF A COLD FRONT.
508 PM EST THU MAR 5 2015 A WAVE OF LOW PRESSURE WILL TRACK SOUTH OF PENNSYLVANIA THIS EVENING.
544 PM EST THU MAR 5 2015 CANADIAN HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY.
909 PM CST THU MAR 5 2015 FRIGID NIGHT ON TAP AS VERY COLD SFC/LL HIGH PRESSURE SLIDES DOWN INTO THE MID-SOUTH TOWARD 12Z. THOSE SNOW COVERED AREAS EXPECTED TO BOTTOM OUT OVERNIGHT BUT AREAS TO THE EAST/SOUTH MAY END UP A FEW DEGREES WARMER THAN CURRENTLY FORECAST. AS WELL AS WEAK TROUGH EXTENDING OUT OF THE CAROLINAS.
1028 PM EST THU MAR 5 2015 HIGH PRESSURE WILL BUILD SOUTH OF NEW ENGLAND TONIGHT THROUGH FRIDAY.
HIGH PRESSURE WILL BE OVER THE AREA TONIGHT AND THROUGH THE PERIOD.
452 PM CST THU MAR 5 2015 ARCTIC HIGH PRESSURE OVER THE REGION TODAY PROVIDING SUNNY SKIES BUT COLD TEMPERATURES. WARM AIR ADVECTION DEVELOPS LATER TONIGHT AS WINDS TURN SOUTHERLY ON THE BACK SIDE OF THE DEPARTING HIGH PRESSURE RIDGE. A BAND OF MID LEVEL CLOUDS SHOULD ALSO MOVE ACROSS THE CWA LATER TONIGHT IN ASSOCIATION WITH AN UPPER LEVEL TROUGH. PARTLY CLOUDY SKIES AND SOUTH TO SOUTHWEST WINDS WILL BRING WARMER TEMPERATURES INTO THE CWA. TO THE LOWER 40S IN OUR FAR SOUTHWEST COUNTIES. MODELS CONTINUE TO DIVERGE INTO SEPARATE CAMPS WITH REGARD TO THE AMOUNT OF SURFACE WARMING EARLY IN THE WEEK AND THEN EVEN MORE SO LATE IN THE WEEK WITH LARGE DIFFERENCES IN THE SOUTHWARD PENETRATION OF A STRONG COLD FRONT.
919 PM EST THU MAR 5 2015 HIGH PRESSURE WILL BUILD IN THROUGH FRIDAY.
IT WILL STILL GET COLD AND FREEZING TEMPS ARE STILL EXPECTED OVER A LARGE PART OF THE AREA. THE LAST WIDESPREAD FREEZE FOR SE TX OCCURRED ON FEB 26TH AND FREEZING TEMPS HAVE OCCURRED IN NOV. HAVE TWEAKED TEMPS TO GO SLIGHTLY COOLER OVER PARTS OF THE WESTERN ZONES AND SLIGHTLY WARMER EAST PRIMARILY FOR WET GROUND AND CIRRUS SHIELD.
1014 PM EST THU MAR 5 2015 CANADIAN HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY.
707 PM EST THU MAR 5 2015 A WEAK LOW PRESSURE SYSTEM WILL TRACK ALONG AN ARCTIC COLD FRONT WELL SOUTH OF THE AREA THROUGH THIS EVENING. HIGH PRESSURE MOVES EAST THROUGH FRIDAY THEN PASSES SOUTH OF THE REGION THIS WEEKEND AS SEVERAL WEAK IMPULSES PASS TO THE NORTH.
452 PM CST Thu Mar 5 2015 Large area of high pressure at the surface continues to invade the Midwest. As the high shifts to the south and east, southerly winds will pick up across western and northwestern areas and temperatures will level off/slowly rise overnight.
546 PM CST THU MAR 5 2015 AT 19Z WATER VAPOR IMAGERY SHOWED A DEEP TROUGH EXTENDING FROM EASTERN CANADA DOWN INTO THE LOWER MISSISSIPPI RIVER VALLEY WITH RIDGING ACROSS THE WEST COAST. THIS WAS BRINGING WARMER AIR ALOFT AND WITH DOWNSLOPE WESTERLY WINDS. THIS WILL SPREAD THE WARMER AIRMASS ACROSS THE ENTIRE FORECAST AREA. LOWS TONIGHT ARE EXPECTED TO BE WARMER THAN THE PAST FEW NIGHTS DUE TO THE WARMER AIR. SKIES SHOULD BE MOSTLY SUNNY AS THE MODELS ARE SHOWING LITTLE MOISTURE OVER THE AREA AS MOST OF THE CLOUD COVER MOVING OVER THE RIDGE IN SOUTHWEST CANADA WILL PASS ACROSS THE DAKOTAS AS THE RIDGE BEGINS TO BROADEN CAUSING MORE WESTERLY FLOW THAN NORTHERLY FLOW LOCALLY. THE LOW LEVEL FLOW WILL ALSO BE WESTERLY.
HIGH PRESSURE BUILDING ACROSS THE WEST COAST WILL MAINTAIN DRY WEATHER CONDITIONS AND ABOVE AVERAGE TEMPERATURES THROUGH THE UPCOMING WEEKEND. UPPER LEVEL HIGH HAS SETTLED OVER THE STATE AND TEMPERATURES ARE RUNNING IN THE MID 60S TO MID 70S TODAY WHILE LIGHT OFFSHORE FLOW HAS BROUGHT CLEAR SKIES. SIMILAR OR SLIGHTLY WARMER TEMPERATURES ARE EXPECTED FRIDAY WITH LITTLE CHANGE IN THE WEATHER PATTERN.
626 PM EST THU MAR 5 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT AND LAST THROUGH FRIDAY NIGHT WITH DRY BUT COLD WEATHER.
THERE ARE A FEW REPORTS OF SLEET IN THE PINEBELT REGION BUT TEMPERATURES HAVE STAYED ABOVE FREEZING AND NO TRAVEL ISSUES ARE ANTICIPATED THERE AS THE PRECIPITATION ENDS LATE THIS AFTERNOON. WE HAVE BEEN CONCERNED ABOUT ISSUES WITH REFREEZING FOR TONIGHT GIVEN THAT TEMPERATURES ARE EXPECTED TO FALL WELL INTO THE 20S AND TEENS. SKIES HAVE CLEARED OVER MOST OF THE AREA AND THIS IS ALLOWING TEMPERATURES TO RISE ABOVE FREEZING AS DRY NORTHERLY WINDS HELP TO DRY OFF THE ROADS. WHILE REFREEZING MAY OCCUR IN SOME LOCATIONS.
HIGH CLOUDS CONTINUE TO STREAM OVER UPPER RIDGE BRINGING INCREASED CLOUD COVER MAINLY TO WESTERN PARTS OF THE AREA. A DRY WARM FRONT WILL CONTINUE TO PIVOT EAST ACROSS CENTRAL NORTH DAKOTA THIS AFTERNOON. WEAK WARM AIR ADVECTION WILL CONTINUE THROUGH FRIDAY LEADING TO WARMER FORECAST HIGHS THAN WHAT WAS OBSERVED TODAY.
830 PM EST THU MAR 5 2015 HIGH PRESSURE WILL BUILD SOUTH OF NEW ENGLAND TONIGHT THROUGH FRIDAY.
MEANWHILE HIGH PRESSURE IS BUILDING EAST INTO EASTERN KENTUCKY. HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT AND CENTER ITSELF OVER THE AREA BY LATE TONIGHT. WILL CONTINUE AN SPS THROUGH EARLY TOMORROW MORNING ADDRESSING THE SLICK ROADS AND REFREEZING TONIGHT.