Aikyam-Lab/Synoptic-Bench huggingface dataset:
NORTHEAST WINDS WILL USHER IN SOME COOLER TEMPERATURES. MID LEVEL MOISTURE BEGINS REBOUNDING FROM THE SOUTH TONIGHT AS AN UPPER LOW IN THE CENTRAL ROCKIES NOSES INTO THE HIGH PLAINS.
The arrival of a cold front will bring gusty winds to much of the Inland Northwest Sunday.
LOW PRESSURE WILL KEEP UNSEASONABLY COOL CONDITIONS AND SCATTERED SHOWERS AND THUNDERSTORMS OVER THE AREA THROUGH SUNDAY.
THE DEEP UPPER LEVEL TROUGH ALONG THE EASTERN SEABOARD MOVES EAST OVER THE WESTERN ATLANTIC ALLOWING THE RIDGE OVER THE CENTRAL STATES TO BUILD INTO THE REGION. CLEAR SKIES WILL PREVAIL AND DAYTIME MAXIMUM TEMPERATURES WILL CLIMB A FEW DEGREES HIGHER TODAY IN RESPONSE TO THE STACKED HIGH PRESSURE BUILDING INTO THE REGION.
/ISSUED 417 AM CDT SAT MAY 7 2016/ THE LARGE UPPER LOW IS STILL HANGING OUT OVER NV/CA EARLY THIS AM. WV SHOWS A GOOD DEAL OF DRY AIR SOUTH OF THE LOW WHICH IS BEING PUSHED NORTHEASTWARD INTO BAJA/SONORA MX. THE HIGHEST DEWPOINTS IN THE STATE ARE IN THE UPPER 50S/LOW 60S IMMEDIATELY ALONG THE GOMEX COAST. A DRYLINE IS EXPECTED TO BEGIN AN EASTWARD PUSH DURING THE LATE MORNING AS THE UPPER LOW CASHES OUT OF VEGAS AND MAKES ITS WAY TO THE FOUR CORNERS REGION. ALDRICH ELONGATED UPPER LEVEL LOW WILL MORPH INTO THE WEST CENTRAL PLAINS ON SUNDAY LEAVING BRISK SOUTHWESTERLIES ALOFT BEFORE BECOMING ABSORBED BY A BATCH OF ENERGY BEING SLUNG SOUTHWARD OUT OF THE CANADIAN ROCKIES.
WITH SLOW MOVEMENT OF UPPER LOW. -HOWERTON KEY DURING THIS PERIOD WILL BE TRACK/EVOLUTION OF SOUTHWESTERN US UPPER LOW. MEDIUM RANGE MODELS THIS MORNING SUGGEST LOW WILL TRACK INTO THE CENTRAL PLAINS AND ULTIMATELY GET ADSORBED BY NORTHERN STREAM LOW/TROUGH.
WITH EVEN WARMER CONDS EXPECTED COMPARED TO FRI. MAX TEMPS TODAY WL WARM INTO THE LOWER AND MID 80S AT MANY LOCATIONS.
CIRCULATION FROM UPPER LOW OVER THE GREAT BASIN CONTINUES TO PUSH CLOUDS AND MOISTURE ACROSS EXTREME SOUTHWEST MONTANA. DEEP UPPER LEVEL LOW REMAINS OVER THE GREAT BASIN WITH ASSOCIATED CLOUDS COVERING THE SOUTHERN THIRD OF MONTANA.
WATER VAPOR IMAGERY SHOWS A CLOSED UPPER LOW OVER THE NEW ENGLAND STATES WITH A BROAD UPPER TROF OVER THE EASTERN UNITED STATES. THIS SYSTEM WILL MOVE QUICKLY EASTWARD TODAY AS ANOTHER SHORT WAVE TROF MOVES ACROSS THE GREAT LAKES REGION. THE EXITING UPPER LOW WILL ALLOW FOR HEIGHT RISES ACROSS THE CENTRAL GULF COAST REGION. TEMPERATURES WILL BE MUCH WARMER THAN THE PREVIOUS SEVERAL MORNINGS WITH LOWS SUNDAY MORNING IN THE MIDDLE TO UPPER 50S.
946 AM EDT SAT MAY 7 2016 HIGH PRESSURE WILL BUILD FROM THE WEST TODAY. MODELS ARE DEPICTING A WEAK COASTAL TROUGH DEVELOPING THIS AFTERNOON. WITH READINGS REACHING THE LOWER 80S.
1001 AM EDT SAT MAY 7 2016 A COLD FRONT WILL BRING SHOWERS AND POSSIBLE THUNDERSTORMS LATER TODAY. THE PERSISTENT UPPER LEVEL LOW WILL FINALLY DRIFT OFF THE NEW JERSEY COAST THIS AFTERNOON. WOULD THINK THE FRONT WOULD USE UP A GOOD DEAL OF WHAT ENERGY IS AVAILABLE AS IT RUNS INTO THE RIDGE ALOFT. COLD FRONT WILL COMPLETE ITS PASSAGE ACROSS THE REGION THIS EVENING. STILL SEEING DIFFERENCES IN MODEL SOLUTIONS WITH THE EFFECT OF A WARM FRONT.
409 AM PDT SAT MAY 7 2016 AN AREA OF LOW PRESSURE WILL ALLOW FOR THE CONTINUATION OF UNSETTLED WEATHER THROUGH THE WEEKEND. THIS SYSTEM WILL BRING THE THREAT OF SHOWERS AND THUNDERSTORMS TO MUCH OF THE REGION ALONG WITH COOLER TEMPERATURES. CYCLONIC FLOW WITH EMBEDDED VORT MAXES CONTINUES TO IMPACT THE REGIONS WEATHER AS A LARGE SCALE CLOSED LOW CENTER SLOWLY DRIFTS INTO NV. SMALL HAIL WILL ONCE AGAIN BE THREAT AS FREEZING LEVELS WILL BE LOW. TODAY LOOKS TO BE THE LAST DAY OF THE LARGE SCALE IMPACT OF THE UPPER LOW AS THE ENERGY MOVES THROUGH THIS EVENING WE WILL SEE THE LOW START TO MAKE MORE EASTWARD PROGRESSION ON SUNDAY AND WE ARE LIMITING SHOWERS TO THE SIERRA AS WE ARE STILL ON THE EXTREME WESTERN PERIPHERY OF THE LOW.
THIS COUPLED WITH THE UPPER RIDGE AXIS CENTERING ITSELF OVER THE REGION LATER TODAY WILL HELP PUSH AFTERNOON HIGH TEMPERATURES INTO THE LOWER TO MID 80S. CLOUDS WILL BE LIMITED TO THIN CIRRUS SPILLING OVER THE RIDGE SO EXPECT ANOTHER MOSTLY SUNNY DAY ACROSS THE REGION. AN UPPER LEVEL TROUGH OUT WEST WILL GRADUALLY PIVOT EAST THROUGH SUNDAY AND INDUCE ENOUGH LIFT ACROSS THE NW HALF OF OUR REGION TO GENERATE SOME ISOLATED TO WIDELY SCATTERED CONVECTION.
958 AM EST Wed Feb 1 2017 A cold front crosses later today.
Tranquil weather conditions will continue over much of NM through the weekend as dry high pressure shifts south of the area.
An upper level trough currently moving across the region is progged to be east of the area by mid morning resulting in a fairly flat ridge building across the area. A weak cold front that is progged to move into S TX Thu, will interact with the moisture to bring a slight chc of -SHRA's to the VCT area and possibly a few -SHRA's farther south. Temps are expected to be cooler Thu, especially across the northern areas.
Southwest winds this morning will turn to the northwest, then north as a cold front moves through the area today. /issued 349 AM CST Wed Feb 1 2017/ (Today and Tonight) A cold front will drop south across the area during the next 24 hours. Cooler temperatures for tonight with lows mainly in the 30s. A cold front drops south of the area by Thursday morning.
SHORT TERM (Today through Thursday): A fairly dry 500 mb trough will be moving over the RGV today and Thurs. Although no significant pops are expected due to the limited moisture associated with this trough axis some increase in the overall cld cover will occur with its passage. A cold front will push down into central and southern TX today and tomorrow but will not have enough strength to clear the RGV. Since the S-SE low level flow will persist throughout the short term and the daytime heating will be relatively decent will lean towards the warmer side of the ECMWF/NAM guidance as the GFS appears a bit too cool.
This cloud cover to increase across the area later today as a ridge of high pressure moves west to east across the state.
547 AM EST Wed Feb 1 2017 A weak cold front crosses later today.
631 AM EST Wed Feb 1 2017 Fair and warmer weather through Thursday, with breezy conditions continuing.
High pressure will build in through the rest of the week. ILN/s 12Z sounding shows the freezing level around 1000 feet AGL. The precip was mainly rain with mixed rain and snow along the higher elevation over Clinton and Fayette Ohio Counties. At the surface, ridging will build into the region.
514 AM CST Wed Feb 1 2017 Update for 12z TAF issuance Some mid and high level moisture will remain through most of today and with light east winds will be a bit cooler than yesterday. has a broad trough over the eastern half with some ridging along the west coast. Low level cold air advection indicates that Thursday will be a couple degrees cooler than today.
Nearly zonal flow aloft will persist over the region south of a broad upper level trough over southern Canada and the northern United States, with weak ridging residing over northern Mexico and the American Desert Southwest.
The GOES LIFR probability image indicates the lowest visibilities generally west of highway 99 and east of interstate 5 in between Wasco and Mendota. An upper low is forecast to move very slowly east toward the pacific northwest and northern California coastline over the next 24 hours, bringing a period of unsettled weather to central California the rest of the week.
Cooler temperatures are expected across the Hill Country overnight with lows in the lower 40s and near 60 across the Coastal Plains. Thursday's high will be on the cooler side and slightly above climate normals with mid 60s across the Hill Country to near 70 along Interstate 35.
High pressure will build in through the rest of the week. At the surface, ridging will build into the region.
Have left the highlites for the mountains the same.
A secondary cold front to our north is expected to shift through the northern counties later this afternoon and the rest of the forecast area overnight. and high pressure building over the northern Plains and into the Midwest.
Temperatures in western Nebraska ranging in the lower to mid 20s. Better accumulation potential in the eastern panhandle closer to the Pine Ridge area, but up to half an inch will be possible in the narrow bands. An upper level trough extending from northern Washington and Northern Montana will move slowly eastward today. The highest chances near 80 percent this morning across northern Sheridan and northwest Cherry county. Much cooler air already in place across the region, with daily highs already having occurred at midnight most locations. Daytime highs from the lower 20s northwest to the the upper 20s southeast. The above mentioned synoptic features will persist, as an upper trough moves into the West Coast.
538 AM CST Wed Feb 1 2017 Back door cold front poised just to the north of the forecast area at 09z with temperatures falling off into the single digits and teens north of the front. As such, have sided towards cooler guidance values, but did not go as extreme as the ADJMAV guidance.
High pressure continues to influence the weather over the Florida peninsula producing sunny skies and warm temperatures for the next several days. High pressure ridging across central Florida will produce a predominant east southeast flow across the coastal waters today. The high shifts slightly northward on Thursday which will cause the winds to back to the northeast for the remainder of the week and into the weekend.
605 AM EST Wed Feb 1 2017 High pressure will persist through Thursday.
501 AM CST Wed Feb 1 2017 Dry weather is expected today and tonight as high pressure builds across the region in the wake of a cold front. Early morning water vapor imagery showed a broad upper level trough centered over Hudson Bay.
Later today and tonight the low level moisture values will steadily increase in response to the persistent S-SE surface winds. /issued 403 AM CST Wed Feb 1 2017/ SHORT TERM (Today through Thursday): A fairly dry 500 mb trough will be moving over the RGV today and Thurs. Although no significant pops are expected due to the limited moisture associated with this trough axis some increase in the overall cld cover will occur with its passage. A cold front will push down into central and southern TX today and tomorrow but will not have enough strength to clear the RGV. Since the S-SE low level flow will persist throughout the short term and the daytime heating will be relatively decent will lean towards the warmer side of the ECMWF/NAM guidance as the GFS appears a bit too cool.
Tonight we should dry out and cool down as high pressure to our northwest builds into the region. causing temperatures to be roughly 10 degrees cooler than today for highs.
Cold advection increases tonight and especially Thursday and northerly flow continues in the low levels. Highs on Thursday will be about 10 degrees cooler than today. Tonight we should dry out and cool down as high pressure to our northwest builds into the region. causing temperatures to be roughly 10 degrees cooler than today for highs.
High pressure will weaken today as an area of low pressure over the eastern Pacific approaches the California coast.
515 AM CST Wed Feb 1 2017 Cold front is dropping south across the northern CWA early this morning, with moderate cold air advection behind it and a switch from northwest winds to more northerly winds. Highs today will be much cooler than recent days, with highs in the teens. Lows both tonight and tomorrow night were dropped a few degrees, and tended to lean on the cooler guidance numbers, especially in the James valley.
The low humidity levels when combined with the elevated surface winds and dry fuels produced conditions almost favorable for fire spread. A cold front will be moving into the forecast area by late in the day as a series of upper disturbances moving into the base of a broad mid level trough of low pressure across the central parts of the country help nudge the system south.
634 AM EST Wed Feb 1 2017 Scattered light rain and snow showers will end as high pressure builds into the area. The lower levels were still relatively warm with limited ice introduction in the cloud layer, so rain and snow showers are possible through the day.
Today Through Thursday Night SFC obs data shows a cold front just south of the MO/AR border early this morning. The moisture levels will continue to rise through this afternoon across the SRN half of the state before the slow moving cold front drops south. Expect the cold front to be along the I-40 corridor late this afternoon. High temps will range significantly as one would expect with a cold front bisecting the state. with highs only in the low to mid 50s across NRN AR. The cold front will continue it's SWD progression this evening. expect dry and much cooler conditions. The short term period will also end on a near or even below normal note temp wise north of the cold front stalled south of AR.
/Issued 307 AM CST Wed Feb 1 2017/ A cold front has pushed into northeast OK tonight.
529 AM EST Wed Feb 1 2017 Fair and warmer weather through Thursday, with breezy conditions continuing.
with an increasing srly flow expected as low pressure deepens over nrn TX, have elected to bring in VFR ceilings later today. Upper air sounding from KLCH at 01/00Z showed an overall dry air mass with the exception of some moisture in the lowest levels.
1035 AM EST Wed Feb 1 2017 High pressure remains draped across the Florida Peninsula, driving moderate northeast breezes across the Florida Keys and area coastal waters.
Mesoscale models like the HRRR and RAP13 continue to show some patchy fog developing over far west central Kansas for a few hours around and shortly after daybreak before diminishing so am still looking for some patchy fog to develop mainly along the Highways 96/50 corridor west of Scott City and Lakin.
Broad but shallow trof over North America with dominate Hudson Bay low and ridge along with west coast. High pressure over northeast Montana this morning with weak wave in the northern flow expected to bring a reinforcing shot of cold air to the region.
An upper level trough will dig southeast out of central Canada into the Great Lakes States and amplify a longer wave-length trough across the east central US.
14 UTC surface analysis shows an area of high pressure over the Central Florida Peninsula. While it's rather dry aloft, the low level flow will continue to increase low level moisture, and expect a few clouds to develop this afternoon beneath the subsidence inversion. Expect temperatures to warm into the low to mid 70s across the region today.
East Central Florida Forecast Discussion 858 AM EST Wed Feb 1 2017 Overnight ridge squarely over the region brought optimal radiational cooling and 30s were reported in some spots south to Lake Okeechobee. An onshore breeze will keep the beaches a little cooler with a little moisture sneaking into the Treasure Coast by late afternoon. Light winds INVOF ridge axis giving way to a modest onshore sea breeze along the DAB-SUA corridor from 18Z-23Z. Proximity of ridge axis to the area will keep winds below 10KT with seas 2FT or less over the waters.
Skies may very well scatter out late evening into the overnight as drier low level air begins to filter into area from large high pressure to the west. After a brief lull during the early afternoon, an approaching cold front with deepening diurnal mixed layer will reinvigorate shower activity. This front will usher in a much cooler airmass with 850mb temps dropping from about -7C ahead of the front down to -15 to -20C behind the front by Thursday morning. High pressure building into the region with drier air should support some scattering out of clouds at times through the end of the week. High pressure with dry cold air and fresh snow on the ground will lead to highs only in the low 20s with lows possibly dipping into the single digits (depending on amount of clearing).
Dew point temperatures were running cooler than observations so increased them a couple of degrees. This change also helps with the relative humidity which was running cooler than observations. The low humidity levels when combined with the elevated surface winds and dry fuels produced conditions almost favorable for fire spread. A cold front will be moving into the forecast area by late in the day as a series of upper disturbances moving into the base of a broad mid level trough of low pressure across the central parts of the country help nudge the system south.
A very slow moving cold front stretched from west Tennessee into east Arkansas to the north of the Interstate 40 corridor. North of the front it will remain much cooler with highs only in the lower to middle 50s.
1034 AM EST Wed Feb 1 2017 A cold front crosses later today.
Winds will veer in advance of a cold front that will reach the Metroplex this afternoon. Meanwhile, a trough extended from Bowie to just east of Comanche with southwesterly winds and dewpoints in the 20s to lower 30s. Highs today will be cooler across the northwestern counties and will range from the mid 60s northwest to the upper 70s to around 80 degrees across Central Texas.
A moist southwesterly flow will set up over the region by Thursday morning as an upper level low begins to move inland off the Pacific Ocean.
629 AM EST Wed Feb 1 2017 High pressure in place will provide another dry day with fair conditions across South Florida.
Upper level ridge is broken down and a very wet and snowy period will develop for all of southern Idaho. For today and tonight, the moderate to heavy snow will be limited to the central Idaho mountains and the highlands in the Idaho-Wyoming border region, where there is a current Winter Storm Warning in effect.
Surface boundary is working its way southward through Middle Tennessee early this morning with rapidly dropping temperatures and a cooler air mass spreading in behind the front.
Clear skies and cold advection from an arctic high pressure system was allowing temperatures to drop to near or below zero mainly north and east of the Missouri River. High temperatures will struggle to reach the low teens. The rest of the week looks dry with an upper level ridge moving in. We will transition to a more active pattern this weekend as the ridge breaks down and westerly flow kicks in.
Surface pressure gradient ahead of high pressure centered in MT will again make for brisk winds. Associated secondary cold front will bring a reinforcing shot of cold air.
534 AM CST Wed Feb 1 2017 A high pressure system will continue to build into the region today and Thursday.
TFJ Broad but shallow trof over North America with dominate Hudson Bay low and ridge along with west coast. High pressure over northeast Montana this morning with weak wave in the northern flow expected to bring a reinforcing shot of cold air to the region.
434 AM CST Wed Feb 1 2017 Dry weather is expected today and tonight as high pressure builds across the region in the wake of a cold front. Early morning water vapor imagery showed a broad upper level trough centered over Hudson Bay.
Cold front was located across northern Arkansas early this morning.
As the system draws in moisture from two separate sources, Pacific and Gulf, a weak warm front will slowly lift north through the day tomorrow arriving across the southern half of our CWA by early afternoon and spreading over our entire area by tomorrow evening.
1140 AM EST Mon Jan 16 2017 Weak high pressure remains over the local area through tonight. A warm front lifts north through the area Tuesday morning.
249 PM EST Mon Jan 16 2017 Warm frontal boundary lifts north today and tonight for warmer temperatures and rain showers. Cold front Tuesday night. Shower activity will increase across the region tonight and on Tuesday, as a low pressure system across the central U. Cold front crosses Tuesday night, with showers diminishing in its wake. Any thunderstorms ahead of the cold front should diminish prior to the start of the period, as driving upper level short wave trough lifts out into the northeastern U. , actually outrunning the surface cold front.
317 PM CST Mon Jan 16 2017 (Tonight and Tuesday) A weak cold front will move into the Big Country this evening and through the I-10 corridor midnight. While no rain is expected tonight, an upper low moving east into the El Paso region Tuesday, will bring lift and moisture over the front. Went closer to the cooler GFS MOS guidance temperatures Tuesday given cloudy skies and rainfall. 04 (Tuesday Night through next Monday) A northeasterly moving upper low over central New Mexico Tuesday night will continue the southwest flow aloft over the forecast area.
Clouds will fill back in and lower tonight as a cold front approaches from the west. Patches of locally dense fog are possible again late tonight into early Tuesday, but winds increasing ahead of the cold front should help hinder widespread fog development tonight. By late morning, showers are possible across the northwestern portion of the forecast area as the cold front nears.
Latest look at the web cams underneath the higher cloud tops in eastern Cheyenne county are not showing much in the way of snowfall. It appears as if the low level moisture is starting to scour out due to decent subsidence. An area of light snow and/or freezing rain continues to pivot from the southern Nebraska Panhandle into far southeastern Wyoming this morning. Any lingering threat of freezing rain along I-80 from Sidney to Kimball should end soon as forecast soundings still show cooling profiles through the night, but any snow on top of the ice that has already accumulated will yield hazardous travel. The Winter Adzy for Snow/Freezing rain still looks good but expect we will be able to cancel it early.
Cannot completely rule out some light fog/light freezing fog late tonight into Tuesday morning as the boundary layer remains moist from heavy precipitation over the weekend. However, a light northwest wind which is forecast to bring a slow decrease in surface dewpoints throughout the night does not support widespread or significant fog/freezing fog formation. Temperatures profiles could perhaps be just cold enough to support light sleet or perhaps light freezing rain in northern Oklahoma if moisture were to be deep enough to support precipitation in these locations.
411 PM EST Mon Jan 16 2017 A ridge of high pressure will be over the north country through midday Tuesday. A low pressure area will move northeast through the eastern Great Lakes on Tuesday.
1224 PM EST Mon Jan 16 2017 A stationary front just south of our area lifts north as a warm front through early morning. Cold front Tuesday night. With slight ridging aloft and little surface focus decreased POPs some through the remainder of this morning. A cold front crosses Tuesday for another half to an inch of QPF area wide.
High pressure along the Mid-Atlantic Coast will move east into the Atlantic overnight as a cold front approaches from the west.
Although, we are already a bit ahead of temperatures 24 hours ago at this time for some areas, so should be on track to see readings a few degrees warmer today compared to yesterday.
/issued 324 AM CST Mon Jan 16 2017/ SHORT TERM (Today through Tuesday): The most recent surface analysis indicates a cold front over central Texas from roughly Paris to Eagle Pass.
Wraparound flow from the closed low, that is currently over northern Texas/western Oklahoma, is still drawing in enough moisture and getting enough lift to make it over the mountains and cause snowfall. Tuesday, the snow finally ends as a ridge of high pressure builds into the area. Most models do show a small area of circulation forming over Arizona early Tuesday morning and actually closing off forming a weak upper level low.
1243 PM EST Mon Jan 16 2017 Aviation A low pressure system will track from Texas today through Michigan on Tuesday. This system will result in a wintry mix of precipitation for the region that changes to rain as some warmer air tries to move in.
1148 AM CST Mon Jan 16 2017 /18Z TAFS/ West winds 10 KTS or less will shift north overnight as a weak cold front with north winds 10 KTS or less moves through. A weak cold front will move across the area tonight, clearing the I-10 corridor after midnight.
A warm front will lift northward today with light winds. A cold front will then approach from the west throughout the day.