Aikyam-Lab/Synoptic-Bench huggingface dataset:
High pressure is centered over the mid-Mississippi Valley this morning. Through Monday near normal temperatures for the date and clear conditions are expected as the ridge remains in place. Late Monday into mid week the ridge will move into the Atlantic and the return flow will get underway.
430 AM MST Sun Mar 7 2021 Current surface map shows elongated low across central North Dakota with cold front into northwest South Dakota/northeast Wyoming.
347 AM CST Sun Mar 7 2021 (Issued 347 AM CST Sun Mar 7 2021) Today and Tonight: Look for increasing southerly winds today as high pressure departs the area. Temperatures will get into the lower to mid 50s west of MSN and in the upper 40s to perhaps lower 50s in southeast WI this afternoon.
431 AM MST Sun Mar 7 2021 The forecast period starts out with a ridge over the Central High Plains and northwest flow aloft over the Tri-State area. Average high temperatures for this time of year generally range from the low to mid-50s. Monday afternoon, the ridge moves to the east with the Tri-State area coming under southwest flow aloft. A lee trough is expected to develop over Eastern Colorado through the day with a tightening pressure gradient over Northwestern Kansas.
846 AM EST Sun Mar 7 2021 It is cooler, drier, and breezier than it was this time yesterday with strong high pressure settling in overhead. However, the subsidence associated with the high pressure is clearing things out across the area, and it should be a beautiful day overall. A strong ridge of high pressure overhead is producing a tight pressure gradient, and subsequently gustier NE winds throughout the day. With high pressure regaining control, gusty NE winds are settling across the area, producing hazardous seas across coastal waters. Conditions start to improve some this afternoon, but will still remain at cautionary levels for the next few days with the strong high pressure remaining in control.
606 AM EST Sun Mar 7 2021 Dry high pressure will dominate the weather through the week ahead with plenty of sunshine each day.
1000 AM EST Sun Mar 7 2021 Chilly high pressure will extend across the central Appalachians and southern mid Atlantic through Monday.
419 AM CST Sun Mar 7 2021 Tranquil weather conditions exist across the TN Valley this morning, provided by strong north-northwest flow aloft on the western side of an amplified trough over the Eastern CONUS. At the surface, a ridge axis extending southwestward from a high centered over the northern Great Lakes will continue to build southeastward into the region this morning. The north-northwest flow regime will slowly diminish today, as the trough begins to lift northeastward and a mid-level ridge shifts eastward across the Upper- MS Valley.
In wake of the cold front which passed through our entire region overnight, an expansive region of high pressure reaching from the Upper Great Lakes southward to the Gulf coast region, will press southward down the Sunshine State and into our area by tonight. This will result in much drier and slightly cooler air to overspread our entire region. A well pronounced western Atlantic ridge axis reaching well into the Gulf coast region will gradually weaken and retreat further eastward, while lower pressure persist in the Northwest Caribbean Sea.
908 AM EST Sun Mar 7 2021 High pressure will ridge into the North country through early Monday.
615 AM EST Sun Mar 7 2021 High pressure and a dry airmass will provide for mostly sunny and seasonable conditions today.
(Today and tonight) Lee trough will be developing today, with occasionally gusty south winds returning.
308 AM MST Sun Mar 7 2021 After last evenings cold front we anticipate high temperatures about 5-10 degrees cooler today than yesterday with readings generally in the 50s. In the meantime, an upper low will drop to a postion off the Pacific northwest coast. A short wave will eject from this upper low and track southwest to northeast into our region by Monday night.
/issued 259 AM CST Sun Mar 7 2021/ Northerly mid-level winds continue across the Mid-South this morning on the backside of a relatively deep trough over the East Coast. A narrow ridge is located over the Central CONUS building as far north as Hudson Bay. This ridge will expand over the next few days, resulting in anomalous 500 mb geopotential heights from the Intermountain West to the Mid-Atlantic region. Winds will be light in proximity to the surface anticyclone but will become more southerly tonight as the high slides east.
Dunn Previous Discussion: /Rest of Tonight through Monday Night/ Surface observations late this evening reveal an area of high pressure centered near Memphis, TN. Weak mid level ridging builds in on Monday and southerly winds will increase to 15-20 mph.
A weak mountain wave over the higher elevations, with some downslope wind spilling off the lower foothills, has kept these areas mild overnight. The flow aloft is decreasing with the mountaintop inversion also fading this morning, so the stronger winds in the higher elevations should be decreasing and it looks like this is beginning to happen. Our forecast was about 3-5 degrees warmer than yesterday. We nudged them down slightly, generally in line with the warmer NAM MOS guidance and HRRR. The upper level ridge axis is east of Colorado Monday with southwest flow aloft over the state.
1141 AM CST Sun Mar 7 2021 (Today and tonight) Lee trough will be developing today, with occasionally gusty south winds returning.
240 PM EST Sun Mar 7 2021 As a positively-tilted trough axis propagates off the east coast of the United States, a ridge axis is settling in over the central Plains. This will occur as winds shift from NE to E then SE this weekend, slowly filtering in more moisture and warmer air across the peninsula. VFR prevails with high pressure in control. Due to the position and tight pressure gradient of the high, winds remain out of the NE and gustier at times, particularly during the daytime hours. With a strong area of high pressure in control, gusty NE winds remain across coastal waters.
250 PM CST Sun Mar 7 2021 A warming trend will continue with an upper level ridge over the region coupled with increasing south-southwesterly surface/low level flow. Not only will the daytime highs become warmer, but the nighttime lows will also become quite mild due to rising surface dew points along with more nocturnal boundary layer mixing.
238 PM EST Sun Mar 7 2021 A strong area of Canadian high pressure will continue to expand across the area through Monday before drifting offshore during the middle of the week. A cold front is expected to slowly approach from the north toward the end of the week. High pressure is located just to our northwest, and will move directly overhead tonight. The stubborn upper trough that has influenced our weather over the past several days will finally press offshore tonight. High pressure at the surface will follow within the zone of subsidence behind it. One of the cooler nights this winter (even though it is almost spring.
200 PM EST Sun Mar 7 2021 Chilly high pressure will extend across the central Appalachians and southern mid Atlantic through Monday.
227 PM EST Sun Mar 7 2021 The short term period will be ridge-dominated, with large-scale subsidence bringing dry conditions to north and central Georgia. At the upper levels today, the CWA is sandwiched between an exiting longwave trough to the east and a broad ridge building into the central portion of country. Tomorrow, the upper-level ridge axis will shift further east, while at the surface, the high pressure center will shift over the southern Appalachians. Highs tomorrow will generally be several degrees warmer than today --- in the mid- to upper 60s.
A warm up is coming, however, as ridging begins to rebuild and allows temps to reach into the mid 70s for much of the western CWA on Monday.
Upper level ridging is starting to take hold over the southeastern CONUS as an upper trough progresses over the east coast. This ridge will maintain its hold over the region through the near term period. At the surface, high pressure will settle directly over the southeast today. Current dew points range from the upper teens north of Highway 84 to the lower to mid 20s south of Highway 84 to just north of I-10. Temperatures across the local area range from the upper 50s north of Highway 84 to the lower 60s south. It will then be a bit warmer on Monday, as highs are forecast to be in the upper 60s at the coast and in the lower 70s inland.
1209 PM EST Sun Mar 7 2021 Dry high pressure will dominate the weather through the week along with plenty of daily sunshine. Low pressure will move farther away from the Southeast coast today as high pressure across the Great Lakes and Mississippi Valley shifts slowly eastward. Clear skies and light winds should create an unseasonably chilly night with lows likely falling below freezing for all but the beaches. Clear skies are expected on Monday as the high builds across the area during the afternoon. High pressure overhead Monday night for good radiational cooling down into the mid 30s.
High pressure was centered over northwest Mississippi at this time. The high will slowly move east across north Mississippi this evening with continued clear skies and dry weather expected. Temperatures will still be on the chilly side with lows Monday morning in the low to mid 30s. Temperatures will be a little warmer on Monday as south winds begin to bring milder air into the region.
1250 PM EST Sun Mar 7 2021 Chilly high pressure will extend across the central Appalachians and southern mid Atlantic through Monday.
/issued 1024 AM CST Sun Mar 7 2021/ Skies are sunny across the Mid-South this morning with temperatures ranging in the low to mid 50s. Another nice afternoon is in store across the region with continued sunny skies and temperatures warming into the low to mid 60s. /issued 259 AM CST Sun Mar 7 2021/ Northerly mid-level winds continue across the Mid-South this morning on the backside of a relatively deep trough over the East Coast. A narrow ridge is located over the Central CONUS building as far north as Hudson Bay. This ridge will expand over the next few days, resulting in anomalous 500 mb geopotential heights from the Intermountain West to the Mid-Atlantic region. Winds will be light in proximity to the surface anticyclone but will become more southerly tonight as the high slides east.
The short term period will be ridge-dominated, with large-scale subsidence bringing dry conditions to north and central Georgia. At the upper levels today, the CWA is sandwiched between an exiting longwave trough to the east and a broad ridge building into the central portion of country. Tomorrow, the upper-level ridge axis will shift further east, while at the surface, the high pressure center will shift over the southern Appalachians. Highs tomorrow will generally be several degrees warmer than today --- in the mid- to upper 60s.
359 PM EST Sun Mar 7 2021 Temperatures have reached the lower to mid 70s this afternoon across the Florida Keys behind a cold front that moved through the region late last night. Dew points have been steady near 60 degrees since this morning, owing to fairly warm Bayside and Gulf side nearshore water temps that are hanging onto the lower to mid 70s. This event is driven by a high pressure cell that is forecast to strengthen to 1036 mb, translating from the eastern U.
Low temperatures should range from around 40 over our northern CWFA to the lower and mid 40s elsewhere inland. Otherwise, look for warmer highs tomorrow afternoon (lower to mid 70s inland.
156 PM CST Sun Mar 7 2021 Despite the fact that a weak cold front will pass through the area late tonight and Monday morning, spring continues to make its presence known with above normal temperatures.
A mid to upper level trough over the Eastern United States will continue to move eastward into the Atlantic Waters, as high pressure builds into the Southeastern United States. Until that time our position along the southern periphery of the low-level ridge will keep the pressure gradient robust resulting in breezy winds and hazardous beach and marine conditions. While generally dry weather is anticipated with high pressure in control enough low-level moisture persists for periodic low-end shower chances at times for the Atlantic waters and east coast.
1026 AM MST Sun Mar 7 2021 Current surface map shows elongated low across central North Dakota with cold front into northwest South Dakota/northeast Wyoming.
Overnight lows should be a few degrees warmer overall, with afternoon highs on Monday, warming into the upper 60s to lower 70s.
High pressure dominates the eastern half of the CONUS from the Great Lakes to the Gulf Coast. Temperatures will once again rise into the 60s across the region, and likely a few degrees warmer than yesterday. While temperatures have been warmer as of late, and some buds are starting to bloom, I am not confident in how much into the spring growing season we truly are so will hold off on any mention of this in the HWO/graphics now. At the same time, a large closed upper-level low is expected to dive into the Desert Southwest and carve out a western mean longwave trough. A stout sub-tropical ridge will also build in over the Gulf of Mexico with subsequent height rises and continued warming over the area.
Mostly sunny skies are expected this afternoon with highs warming into the upper 40s to the lower 50s across the Bluegrass and I-75 corridor. Highs should warm to around 60 in the I-65 corridor and into the lower 60s out west of I-65.
An ultra dry profile is shown in WV satellite and in model soundings due to deep subsidence on the downstream side of the upper level ridge. Thicker cirrus spilling through the upper level ridge overhead also helps support temperatures that are expected to settle into the 20s before midnight. These clouds usher in the surface warm sector by afternoon which exhibits moderate SW wind flow and a well-defined low level thermal ridge in model projections. This nudges high temperatures into the lower 60s up through the Detroit metro area with the help of at least partial sunshine. The temperature gradient sharpens toward the I-69 corridor and northward where highs in Tri Cities and northern Thumb are placed in the lower to mid 50s.
With high pressure overhead, rather fair weather is expected on Monday with high temperatures warmer than Sunday, with highs climbing into the mid to upper 60s for much of the region.
00z soundings from SGF, OUN, FWD, LZK and AMA showed very dry air in the low and mid levels. Southerly winds will be slightly higher tonight therefore low temps will likely only drop into the lower 40s, with the exception of valleys and lower elevations. A mid level ridge will be building into the area again we went closer to NBM 75th percentile for highs with readings a degree or two warmer than Today.
The MSLP gradient maintains over the southern plains between a low over Colorado and the strong, persistent high pressure over the deep south.
The high though will continue to promote sinking air keeping South Central Texas dry for most of the week. It will traverse the state this afternoon through Monday morning, but with very limited moisture (dewpoints in the 30s and low 40s) and the already mentioned high pressure in place no precipitation is expected. Lows tonight are expected to be 3-5 degrees warmer than last night (thanks in part to increasing cloud cover), with highs tomorrow 2-4 degrees warmer than tonight. That translate to lows tonight in the mid to upper 40s and highs tomorrow in the lower 70s.
1225 PM EST Sun Mar 7 2021 Aviation - Warming trend and mostly dry through mid week - Wet toward the end of the week -- Warming trend and mostly dry through mid week -- High pressure over Michigan will provide plenty of sunshine today.
1103 AM CST Sun Mar 7 2021 Upper level ridging and high pressure at the surface continue to dominate the weather across the central portion of the country. Winds will push to between 10 to perhaps 20 mph in central and NE MO, which coupled with the low humidity and dry fuels, will result in elevated fire danger in those areas. BSH Southwest upper level flow will remain atop the central portion of the country through much of the workweek as a deep upper trough slowly digs into the southwestern CONUS.
Southerly flow at the surface with lingering dry air will allow the airmass to heat very well, and we'll stay on the higher end of guidance in terms of afternoon highs.
Temperatures today will be cooler than normal for this time of year with afternoon high temperatures in the upper 60s across the north and low 70s across the south. Overnight lows tonight will be in the mid to upper 40s across the north and interior, and in the low 50s from Brevard county southward, except in the mid to upper 50s across the immediate coast along the Treasure Coast.
300 PM EST Sun Mar 7 2021 High pressure remains over the area through much of this week. High pres will be ridging into the region overnight. Winds become calm after sunset, and with clr skies and low TD's, strong radiational cooling is expected again, leading to lows in the mid/upr 20s away from the coast, to the low/mid 30s immediate coast. Mostly dry weather expected with high pressure dominating through the period.
209 PM CST Sun Mar 7 2021 (Issued 210 PM CST Sun Mar 7 2021) Tonight through Monday night: Temperatures this afternoon have reached the low to mid 40s, with filtered sunshine as a batch of cirrus moves through the region. Lows tonight should reach the low to mid 30s. Lows tomorrow night will again fall into the low to mid 30s.
949 AM CST Sun Mar 7 2021 High pressure to the east looks to rmn in place tdy drifting into the southeast US with southerly flow continuing into tomorrow. High pressure is centered over the mid-Mississippi Valley this morning. Through Monday near normal temperatures for the date and clear conditions are expected as the ridge remains in place. Late Monday into mid week the ridge will move into the Atlantic and the return flow will get underway.
Diegan Chattanooga Airport, TN 61 33 65 37 68 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 56 29 61 35 65 / 0 0 0 0 0 Oak Ridge, TN 56 30 62 35 64 / 0 0 0 0 0 Tri Cities Airport, TN 51 22 58 32 62 / 0 0 0 0 0.
High pressure centered over the mid Mississippi Valley is resulting in easterly winds, at times a bit gusty, at observing sites in SE TX and SW LA. /issued 949 AM CST Sun Mar 7 2021/ High pressure to the east looks to rmn in place tdy drifting into the southeast US with southerly flow continuing into tomorrow. High pressure is centered over the mid-Mississippi Valley this morning. Through Monday near normal temperatures for the date and clear conditions are expected as the ridge remains in place. Late Monday into mid week the ridge will move into the Atlantic and the return flow will get underway.
1208 PM EST Sun Mar 7 2021 Dry high pressure will dominate the weather through the week along with plenty of daily sunshine. Low pressure will move farther away from the Southeast coast today as high pressure across the Great Lakes and Mississippi Valley shifts slowly eastward. Clear skies and light winds should create an unseasonably chilly night with lows likely falling below freezing for all but the beaches. Clear skies are expected on Monday as the high builds across the area during the afternoon. High pressure overhead Monday night for good radiational cooling down into the mid 30s.
238 PM CST Sun Mar 7 2021 Dry conditions and warmer than normal temperatures are expected across the area for the beginning of the new week.
Strengthening high pressure will build to the north Tonight. A few spots could briefly reach freezing. The high will build just to the north Monday, with sunny skies expected. Due to the position of the high, the flow will become more onshore. Strong high pressure will be centered just north of the forecast area Monday night keeping skies clear.
high temperatures are likely to reach the low 50s while further south some near 60 degree readings look possible given the 925 mb temps shown to rise into the 5 to 8 deg C range.
344 PM EST Sun Mar 7 2021 High pressure will settle in across the area through Monday, then move off the coast by the middle of the week. The rest of the afternoon will be sunny with gusty northerly winds as high pressure builds into the region and low pressure shifts further east across the Atlantic.
1024 AM CST Sun Mar 7 2021 Skies are sunny across the Mid-South this morning with temperatures ranging in the low to mid 50s. Another nice afternoon is in store across the region with continued sunny skies and temperatures warming into the low to mid 60s. /issued 259 AM CST Sun Mar 7 2021/ Northerly mid-level winds continue across the Mid-South this morning on the backside of a relatively deep trough over the East Coast. A narrow ridge is located over the Central CONUS building as far north as Hudson Bay. This ridge will expand over the next few days, resulting in anomalous 500 mb geopotential heights from the Intermountain West to the Mid-Atlantic region. Winds will be light in proximity to the surface anticyclone but will become more southerly tonight as the high slides east.
Progressive upper level high pressure passing east tonight with southwest flow aloft to follow Monday. /issued 252 AM CST Sun Mar 7 2021/ Pleasant weather is in store for today as another low amplitude ridge builds in over the forecast area. The trend towards warmer nights will also continue with lows bottoming out in the upper 30s area-wide Monday morning. A large upper low/trough will dig southward along the West Coast the first half of the week before shifting more eastward the second half of the week.
Highs will warm into the upper 60s to the lower 70s.
300 PM CST Sun Mar 7 2021 Progressive upper level high pressure ridge will pass east later tonight followed by increasing southwest flow aloft. Also expecting a very modest increase in low level moisture to continue tonight into Monday with surface dewpoints in the lower to middle 40s spreading across much of the area although morning stratus signals for early Monday still look weak. Temperatures expected to be milder tonight and a little warmer Monday.
Meanwhile, mid level ridging will continue across the region through the short term. So, temperatures should be a bit cooler than today, but not by much.
Flow will back more Monday afternoon and night, as un upper trough moves onto the Pacific Northwest shore. Clouds will increase as energy kicks out from the western trough and this will provide ascent for increasing shower chances for western zones starting Monday afternoon. The best chance of likely precipitation will be west of Billings and over the high country.
The low pressure center off the west coast is still expected to eject a more organized disturbance, that will reach the the Northern Rockies on Monday.
353 PM EST Sun Mar 7 2021 Center of surface anticyclone has become positioned this afternoon in a lake aggregate fashion over the northern Lake Huron basin. Surface warm front/warm sector is shown to push eastward across all of the area between 9- 12Z with a quasi-stationary front developing along the northern flank of the warm sector across northern Lower Peninsula. The HRRR remains much warmer across the Tri Cities and does not support the same frontal behavior through much of the afternoon.
1247 PM EST Sun Mar 7 2021 High pressure through the middle of this week with a warming trend. A high pressure system will provide dry weather for tonight and Monday.
1234 PM EST Sun Mar 7 2021 High pressure will ridge into the North country through early Monday.
CD Chattanooga Airport, TN 61 33 65 37 68 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 56 29 61 35 65 / 0 0 0 0 0 Oak Ridge, TN 56 30 62 35 64 / 0 0 0 0 0 Tri Cities Airport, TN 51 22 58 32 62 / 0 0 0 0 0.
1021 AM MST Sun Mar 7 2021 Temperatures will continue to be 10 to 20 degrees above normal Sunday as this ridge continues to sit over the Plains. Another effect of this ridge sitting to the east of SE Wyoming and the Nebraska panhandle is the low humidities.