Aikyam-Lab/Synoptic-Bench huggingface dataset:
Although we will have a cold front move through the area Tuesday night, no precipitation is expected at this time.
Cold front proggd to reach the northwest cwa early Tuesday and then exit the southeast early in the afternoon.
An upper-trough and cold front will approach the region on Tuesday. A warm front will move north across the ArkLaTex during the day, bringing increased instability across the region ahead of the cold front. Showers and thunderstorms will be possible ahead of the cold front, but the strongest convection will be confined to the approaching cold front during the evening.
(This evening through Tuesday) The base of a mid-level trough is expected to be situated along the Rocky Mountains by Tuesday afternoon. In response to this upper- level feature, a cold front will move through the area starting in the morning in far NW OK, making its way down to SE OK by the afternoon. Ahead of this cold front in SE OK, surface dewpoints should be in the upper 50s to lower 60s with some elevated instability. Gusty northerly winds are likely behind the front, bringing with it cooler temperatures across the area.
One more warm day is expected for most tomorrow before a cold front moves through.
High pressure at the surface is promoting tranquil weather across the Tennessee valley this morning. Based on current obs/trends, have adjusted temperatures up a degree or two and think most locations should peak in the low to mid 60s by this afternoon. An upper level trough moving across the Plains Tuesday will be the main focus in the short term period. WAA on Tuesday will return temperatures to the low to mid 70s and moisture advection will also return dewpoints to the upper 50s to near 60. By Tuesday afternoon, a warm front lifts northward from the Gulf of Mexico, bringing increased rain chances Tuesday afternoon/evening.
Clear skies are expected overnight under high pressure. In response to a deepening trough over the central U. Tuesday, high pressure will shift with developing southwest flow aloft and increase warm, moist advection into the region.
VFR to prevail through the period beneath dry high pressure center. Chattanooga Airport, TN 44 73 57 66 35 / 0 10 90 80 30 Knoxville McGhee Tyson Airport, TN 41 72 55 66 33 / 0 10 80 90 40 Oak Ridge, TN 41 73 54 65 33 / 0 10 90 80 40 Tri Cities Airport, TN 33 73 52 67 32 / 0 10 70 90 50.
Temperatures will be slightly below the seasonal normal with highs this afternoon ranging from the low 60s in northern GA to the low 70s across south central GA. Clear skies and sunny weather continue into tomorrow, but with stronger SE flow on the backside of high pressure, we begin to see a moisture return to the area.
A large area of high pressure is currently covering much of the eastern U. As the area of high pressure moves east tonight south winds will continue to bring milder air into the region. Temperatures will not be as chilly as they were early this morning with lows Tuesday morning in the low to mid 40s. By Tuesday, a cold front will approach the Mid-South from the northwest. Temperatures will be warmer on Tuesday with highs in the upper 60s to mid 70s. The cold front will move through much of the Mid-South Tuesday night with thunderstorms becoming more widespread.
High pressure to the north will move off the east coast tonight while a weak mid-level trough in the southern stream aloft brings the front located over south Florida back north. The warm front will traverse the area on Tuesday bringing showers and scattered thunderstorms from late tonight through Tuesday.
To the west, a low will track NE from North Dakota through central Canada tomorrow, from which an associated cold front will bring rain to the area as soon as Tuesday evening. Pressure gradients aloft will tighten up between the high over the east coast and the approaching low, which will bring breezy conditions through the day tomorrow.
A cold front will shift winds to the north mid to late Tuesday morning. Even at 2 am, the southerly winds were in the 15 to 20 mph across the northern South Plains into the southern Texas Panhandle as the Low-level Jet begins to strengthen in response to a mid-level trough moving into the central Rockies and a deepening lee-side trough. An elongated upper trough associated with an upper low moving across southern Canada will bring a cold front southward tomorrow bringing some of the coolest air to the region we have seen in quite a while. For most areas in the FA the high tomorrow will be 10-20 cooler than today's high.
Broad upper-level trough that brought damaging winds and mountain snow will continue to move out of the region today. The northerly component of the winds will also work to clear skies and cool temps down to the low to mid 50s for Monday highs in the lower elevations. Breezy winds will generally subside this evening as the trough axis makes its way into the Great Plains and leaves an upper-level ridge in its wake.
The highest gusts have been reported in proximity to the front and warm temperatures are promoting deep surface mixing, which is tapping into even higher wind speeds. The current forecast is leaning towards the lower end of guidance. Gusty winds in some of the snow showers could lower visibility locally, and cold air advection could support flash freezing given the warm road temps. Temperatures will be much cooler tonight behind the front, but more noticeable tomorrow as highs drop some 15 to 20 degrees from those found today.
A cold front moving into northeastern NM around 09Z will result in a northerly wind shift across the plains.
1144 AM MDT Mon Mar 29 2021 Based on this morning's observations across the central and northern Rocky Mountains Region and the state of Wyoming, surface cold front is just starting to push into northwest Wyoming with winds shifting into the north around Yellowstone NP. Do not expect widespread strong winds, but this is typically a favorable pattern for the Cheyenne Ridge with strong northwest winds and strong subsidence behind the front.
245 PM EDT Mon Mar 29 2021 High pressure through Tuesday. Strong midweek cold front followed by a sharp cold spell to end the work week. A high pressure system will provide dry weather through Tuesday.
656 PM EDT Mon Mar 29 2021 High pressure building into the region will bring clearing skies and an end to windy conditions tonight.
Some IFR cigs will be possible for several hours Tuesday morning across portions of Deep E TX/WCntrl LA, primarily affecting LFK, although these cigs may briefly affect the TYR/GGG/SHV terminals by mid-morning ahead of a Nwd advancing warm front.
Winds will shift to w-nw and increase by 18Z Tue, then shifting ne at or just beyond the forecast period as a cold front surges s. /issued 249 PM CDT Mon Mar 29 2021/ Upper trough comes down out of the NW today and develops into a broad trough from Canada to NM Tuesday.
Winds will increase again across the plains behind a cold front which will move through the area between 10 PM and 1 AM. Strong cold front later this evening. A strong cold front was about 50 miles north of Cheyenne WY. For now went with highest pops over the higher elevations of the Pikes Peak Region mainly during the morning hours tomorrow. With temps below freezing it will be snow, and cannot rule out the roads becoming icy as temps will drop quickly after the front goes by. Temps will likely not get above freezing over N El Paso, with 30s and 40s over the rest of the plains. With upslope developing and the trough hanging back, we may see some light precip along the mtns/plains interface tomorrow, and have ~30- 40 POPS over this region through the day tomorrow.
644 PM CDT Mon Mar 29 2021 As of 630pm the cold front is visible as a fine line on a 0. The high-resolution guidance continues to indicate the strongest winds will be present behind the front beginning within the next hour (between 00-01z). Meanwhile, to our northwest, a strong cold front has pushed through western South Dakota into northern Nebraska, producing north/northwesterly wind gusts in excess of 60 MPH along the way. Given the "ground truth" of high winds upstream, we went ahead and expanded the High Wind Warning by 1-2 counties. Temperatures will also be significantly cooler, with highs struggling to reach 50 degrees most places.
Surface temperatures valid 29/22Z were generally running 4 to 7 degrees warmer than 24 hours ago. A trough base will pass through the Four Corners region Tuesday, bringing a slight moderation in temperatures compared this afternoon along with some westerly breezes.
1036 PM EDT Mon Mar 29 2021 Although the mean-layer ridge has been squelched over the past couple of days, there are signs on water vapor of it making a comeback. High pressure reaches west across Florida, and supports moderate easterly breezes across the coastal waters of the Florida Keys.
932 PM CDT Mon Mar 29 2021 Will enjoy another night of clear skies and slightly warmer temperatures, as we transition from zonal flow aloft to southwest ahead of a trough that will dig into the northern Plains and Midwest on Tuesday. As high pressure shifts off to the east, southerly flow will increase ahead of an approaching cold front from the west. The end result will likely be our warmest day of the upcoming week as temperatures will surge into the low to mid 70s by Tuesday afternoon (about 10 degrees higher than today). Models hint at the potential for some isolated to widely scattered showers developing along and ahead of a warm front that will be shifting NE across the region late in the day.
720 PM EDT Mon Mar 29 2021 High pressure building into the region will bring clearing skies and an end to windy conditions tonight.
658 PM CDT Mon Mar 29 2021 Cooler and windy conditions on Tuesday, with moderating temperatures late in the week and continued dry weather highlight the forecast. A cold front across eastern North Dakota will occlude with a warm from across western Minnesota as they propagate across the Northland this evening, with a secondary cold front propagating through Tuesday. Westerly winds will increase tonight into Tuesday in steep low level lapse rates and cold air advection behind the series of cold fronts with 35-45kts at the top of the mixed layer.
707 PM CDT Mon Mar 29 2021 Wind speeds across the west have diminished below warning criteria, so have allowed the High Wind Warning to expire. Areas east of the front peaked as high as the lower 80s. High pressure builds in at the sfc in central SD Tuesday night.
A strong low level jet will bring winds of 40 to 50kts just off the surface a few hours after sunset over all terminals with the highest winds expected over our NE OK TAF sites. Tomorrow morning will see moisture beginning to surge northward ahead of an incoming cold front. /Issued 230 PM CDT Mon Mar 29 2021/ Intense cyclone passing across southern Canada has aided a broad fetch of strong winds through the Plains and these winds will only gradually subside this evening. The system cold front will move into NE OK tomorrow morning and clear NW AR and SE OK by late evening or early morning hours on Wed.
Upper ridge builds in Tue and Wed with mainly clear skies. Broad upper-level trough that brought damaging winds and mountain snow will continue to move out of the region today. The northerly component of the winds will also work to clear skies and cool temps down to the low to mid 50s for Monday highs in the lower elevations. Breezy winds will generally subside this evening as the trough axis makes its way into the Great Plains and leaves an upper-level ridge in its wake.
655 PM CDT Mon Mar 29 2021 Cancelled the Red Flag Warning across the north and west as cooler temperatures, increased relative humidity and rain/snow showers have moved in. At the surface a low was centered over far southern Manitoba, with a cold front draped across the far eastern Dakotas. Strong pressure rises along and behind the cold front were responsible for wind gusts in the 50 to 60 mph range this afternoon across much of western North Dakota. The upper level pattern for the remainder of the week transitions to a long wave ridge across the western and central CONUS, with more zonal flow over the Northern Plains. Warmer and dry conditions arrive with this pattern, with widespread highs in the 60s and 70s likely.
623 PM CDT Mon Mar 29 2021 (This evening through Tuesday) The base of a mid-level trough is expected to be situated along the Rocky Mountains by Tuesday afternoon. In response to this upper- level feature, a cold front will move through the area starting in the morning in far NW OK, making its way down to SE OK by the afternoon. Ahead of this cold front in SE OK, surface dewpoints should be in the upper 50s to lower 60s with some elevated instability. Gusty northerly winds are likely behind the front, bringing with it cooler temperatures across the area.
1007 PM EDT Mon Mar 29 2021 High pressure will migrate offshore through Tuesday.
Lows will be in the lower and mid 50s. As an upper trough moves east across the northern and central Plains into the Midwest, associated cold front will push south into the Big Country on Tuesday afternoon. Temperatures will begin to turn cooler later in the afternoon behind the front across the northern Big Country. The GFS continues to show a low-level thermal ridging pattern just ahead of the front in the mid-to-late afternoon. Although we will have a cold front move through the area Tuesday night, no precipitation is expected at this time.
A strong cold front will exit the region tonight, but unseasonably cold temperatures will persist through Tuesday. High pressure will build across the region by midweek and remain in place heading into the upcoming weekend, resulting in a substantial warming trend. The strong but mostly dry cold front has made its way into southern Utah this evening. However, still seeing a few gusts in excess of 40 mph over the higher terrain of northern Utah, particularly the Uintas.
953 PM EDT Mon Mar 29 2021 High pressure building into the region will bring clearing skies and an end to windy conditions tonight.
446 PM CDT Mon Mar 29 2021 High pressure centered over the southeastern part of the country near Tennessee and North Carolina will continue to move eastward. A warm front will be approaching the area tonight from the south. The increased cloud cover will keep temperatures warmer. The passing warm front will bring a chance for showers and thunderstorms on Tuesday due to the inflow of moisture from the Gulf of Mexico in combination with daytime heating.
A frontal boundary south of the area this evening will slowly work its way northward into northeast Florida overnight as a warm front. High pressure to the north will move off the east coast tonight while a weak mid-level trough in the southern stream aloft brings the front located over south Florida back north. The warm front will traverse the area on Tuesday bringing showers and scattered thunderstorms from late tonight through Tuesday.
The beginning of April receives much warmer weather. The beginning of April receives much warmer weather.
Breezy to windy conditions will continue well into this evening for many places as a dry cold front approaches Arizona form the northwest.
702 PM EDT Mon Mar 29 2021 Breezy conditions will settle in through Tuesday across the region, with the strongest wind gusts coming late Tuesday morning into Tuesday afternoon ahead of a cold front.
High pressure will be in control over the area through mid-week with dry weather and warming temperatures.
/issued 446 PM CDT Mon Mar 29 2021/ High pressure centered over the southeastern part of the country near Tennessee and North Carolina will continue to move eastward. A warm front will be approaching the area tonight from the south. The increased cloud cover will keep temperatures warmer. The passing warm front will bring a chance for showers and thunderstorms on Tuesday due to the inflow of moisture from the Gulf of Mexico in combination with daytime heating.
The beginning of April receives much warmer weather.
The stalled front just north of Lake Okeechobee is expected to lift northward into Tuesday as a warm front. Greatest chance for rain and a few storms will be near to northwest of the I-4 corridor into Tuesday afternoon where focus for boundary interactions near the warm front will occur. Lows will remain mild in the mid to upper 60s over much of the region tonight, with highs in the low to mid 80s along the coast and in the mid to upper 80s inland Tuesday afternoon. A slight chance of showers after midnight along the Treasure Coast will lift northward towards morning along the warm front.
Winds will then pick up to around 20 knots with gusts to around 30 knots behind a cold front early Tuesday morning. Winds should start easing tomorrow night as high pressure filters in overhead.
727 PM EDT Mon Mar 29 2021 High pressure will slide offshore tonight and Tuesday.
909 PM CDT Mon Mar 29 2021 Wind speeds have increased again across the western and central part of the area in response to stong CAA behind an exiting cold front, with gusts in excess of 60 mph currently being noted in some locations. Wind speeds across the west have diminished below warning criteria, so have allowed the High Wind Warning to expire. Areas east of the front peaked as high as the lower 80s. High pressure builds in at the sfc in central SD Tuesday night.
1057 PM EDT Mon Mar 29 2021 Breezy conditions will settle in through Tuesday across the region, with the strongest wind gusts coming late Tuesday morning into Tuesday afternoon ahead of a cold front.
1041 PM EDT Mon Mar 29 2021 High pressure will slide offshore tonight and Tuesday.
18Z surface data has deep low pressure in southern Manitoba province. A cold front ran south and then southwest from the low across the central parts of North and South Dakota. Dew points ahead of the cold front were mainly in the 30s with 20s and 30s behind the front. Tonight windy conditions will continue as the next cold front approaches the area. On Tuesday windy and much cooler temperatures will be seen across the area.
/issued 249 PM CDT Mon Mar 29 2021/ Upper trough comes down out of the NW today and develops into a broad trough from Canada to NM Tuesday. By Wednesday morning this trough is moving east with high pressure building in from the west.
128 AM EDT Tue Mar 30 2021 High pressure will slide offshore tonight and Tuesday.
Once the warm front lifts out of the region, it will allow us to remain warm and humid until the next cold front moves into our area Wednesday. This cold front will help increase chances for showers and thunderstorms on Wednesday as well.
910 PM PDT Mon Mar 29 2021 After cold temperatures for tonight, dry and warmer weather will return for the middle of the week. Today through Wednesday evening: The jet stream on the backside of our departing cold front is nosing south along the Washington Coast while the last bit of energy is pushing through eastern Washington this afternoon. The cold pool aloft is shifting east as well with the upper level trough. While the airmass remains cooler, temperatures will top out about 10 degrees cooler today for most places. A dry and much calmer (wind-wise) forecast is on tap through mid- week under a building ridge of high pressure as this feature moves inland from the west.
Extended the High Wind Warning to the east as the stronger winds have spread across pretty much the entire CWA. Wind speeds have increased again across the western and central part of the area in response to strong CAA behind an exiting cold front, with gusts in excess of 60 mph currently being noted in some locations. Wind speeds across the west have diminished below warning criteria, so have allowed the High Wind Warning to expire. Areas east of the front peaked as high as the lower 80s. High pressure builds in at the sfc in central SD Tuesday night. Cooler temps continue Wednesday, but that is short lived as a strong upper ridge develops over the rockies and moves into the midwest over the weekend.
1034 PM CDT Mon Mar 29 2021 Extended the High Wind Warning to the east as the stronger winds have spread across pretty much the entire CWA. Wind speeds have increased again across the western and central part of the area in response to strong CAA behind an exiting cold front, with gusts in excess of 60 mph currently being noted in some locations. Wind speeds across the west have diminished below warning criteria, so have allowed the High Wind Warning to expire. Areas east of the front peaked as high as the lower 80s. High pressure builds in at the sfc in central SD Tuesday night. Cooler temps continue Wednesday, but that is short lived as a strong upper ridge develops over the rockies and moves into the midwest over the weekend.
255 AM CDT Tue Mar 30 2021 Some isolated sprinkles were able to squeeze out of the atmosphere overnight as a cold front pushed through the region. Elevated fire weather concerns continue with relative humidity dipping into the low 20s to low 30s this afternoon across much of the region. Behind the system that moves across the region today, large scale ridging is expected to form over the western half of the country. This ridging looks to remain in place through the weekend for a several day stretch of dry weather.
248 AM CDT Tue Mar 30 2021 Winds remained gusty this morning as a cold front approached the area from the west. The cold front from the west is expected to move through the area today bringing with a wind shift and cooler air for the short term. Today: Cold front will push across the area but should come through dry as forecast soundings indicate there is a lack of moisture in the column. Highs will range from the lower 50s in our nw cwa to the lower 60s in our se. Lows will bottom out in the mid 20s nw to the lower 30s se.
Wind speeds have increased again across the western and central part of the area in response to strong CAA behind an exiting cold front, with gusts in excess of 60 mph currently being noted in some locations. Wind speeds across the west have diminished below warning criteria, so have allowed the High Wind Warning to expire. Areas east of the front peaked as high as the lower 80s. High pressure builds in at the sfc in central SD Tuesday night. Cooler temps continue Wednesday, but that is short lived as a strong upper ridge develops over the rockies and moves into the midwest over the weekend.
Issued by National Weather Service Quad Cities IA IL 335 AM CDT Tue Mar 30 2021 The cold front is through much of central Iowa and pushing into eastern Iowa with GOES-East Nighttime Microphysics RGB showing plenty of low clouds following behind the front. Those clouds will continue to slide through the state today as a longwave trough moves over the region.
1225 AM CDT Tue Mar 30 2021 A strong cold front will race southward across the region tonight with northerly winds spiking up.
332 AM EDT Tue Mar 30 2021 Dry weather will continue today as high pressure shifts offshore. Rain chances return tonight and Wednesday ahead of a cold front that should push through Wednesday night.
(Today and tonight) The cold front over northwestern Oklahoma will push southeast through the day ushering in cooler temperatures, although the frontal passage in the south will be late enough that warm temperatures in the upper 70s and lower 80s are expected again today in north Texas and far southern Oklahoma. One interesting thing to note in the models is the RAP signal of getting some showers developing east of OKC around daybreak tomorrow as the upper-level trough moves over the area.
The winds will then weaken and shift wly with the passage of cold front from 13Z-19Z Tue. Cold front proggd to reach the northwest cwa early Tuesday and then exit the southeast early in the afternoon.
350 AM CDT Tue Mar 30 2021 Gusty winds and elevated fire weather conditions will continue this morning and today as the pressure gradient remains tight ahead of and along a cold front. High temperatures will be several degrees cooler today as a result of the front, ranging from around 60 degrees over far western Missouri to the upper 60s near the Missouri/Arkansas border. The lingering rain will move east of the area on Wednesday morning, with a much cooler and drier air mass moving into the region behind the cold front.