Aikyam-Lab/Synoptic-Bench huggingface dataset:
500mb ridge across the western United States and a 500mb trough across the eastern U. The pressure gradient will increase across the lower Texas coast Sunday as high pressure across the western Gulf of Mexico moves eastward and low pressure develops across west Texas.
339 AM CDT Sat Mar 26 2022 The forecast area remains under persistent northwest flow aloft, thanks to our position between stout H5 ridging centered over the Four Corners and deep troughing over the Mid-Atlantic and Northeast CONUS. Tonight, winds will relax as high pressure over the Red River Valley begins to move south and ease the pressure gradient.
1258 AM CDT Sat Mar 26 2022 Quiet weather is expected through the short term as strong upper level ridging builds across the western US. Moderate warm air advection will allow for daytime highs to rise into the 50s tomorrow with some locations across southwest Nebraska reaching the low 60s.
An upper-level trough with a closed low will eject east out of the New England region, allowing for northwesterly flow into the southeastern region. On the westward side of the ejecting trough, a tightening pressure gradient will create gusty conditions this afternoon and evening. Areas east of I-55 and north of I-20 will experience the highest sustained winds and gusts. A large upper trough will be in place across the eastern United States on Sunday, which will leave our area under northwest flow aloft. This pattern will eventually transition to upper ridging as we head into the new work week.
This pattern will be short lived however as a low pressure system moves into the region from the Pacific.
358 AM EDT Sat Mar 26 2022 A low pressure system moving through the region will bring a chance of snow showers today. High pressure and a drier air mass will build into the region through Sunday. Upper level low evident on satellite imagery over far southern lower Michigan early this morning is forecast to shift east across the lower Great Lakes through this afternoon. Based on current radar trajectories, will plan to hit central portions of our fa with the highest pops, where the main band of pcpn currently across Indiana should shift east into our area through the morning hours. Lows tonight will be in the low to mid 30s. We will remain unseasonably cold though with daytime highs only ranging from the mid 30s north to the lower 40s in the south.
An upper level low was moving across the Ohio Valley, through a broad upper level trough over the eastern conus early this morning. The upper level trough axis will shift east of the area by this afternoon, and another dry surface cold front will push towards the FL/GA border before stalling. Highs will be near 70 to the lower 70s across southeast Georgia, and the low to mid 70s across northeast Florida. Overnight lows will be in the low to mid 40s across interior southeast Georgia, the mid to upper 40s across interior northeast Florida and coastal southeast Georgia, and the lower 50s across coastal northeast Florida.
Models depict high pressure dominating the GOMEX and extending into the Florida peninsula. This will bring back afternoon highs in the low-mid 80s, and Even near 90 values around the Lake region.
Highs today will only reach into the lower to middle 30s with brisk northwest winds 15 to 30 mph.
233 AM MDT Sat Mar 26 2022 Current surface analysis shows main frontal boundary remains south and west of the region, along the lee of the Rockies, with general area of high pressure stretching from south central Canada through the eastern Plains. Upper level analysis shows trough over the eastern US, with low pressure over the southern Great Lakes region. Ridge continues to build across the western US, with fast northwest flow starting to shift east of the area. Skies are generally partly cloudy, with some mid and high clouds spilling over the ridge.
322 AM CDT Sat Mar 26 2022 Low pressure centered over the Ohio Valley and Great Lakes is quickly moving east this morning, placing us in steady northwesterly flow. Northeastern counties may only approach the low 50s while locations along the Alabama border could reach 60 degrees.
Dry cold front has cleared all of SW KS, with elevated northeast winds noted in the post-frontal airmass. Sunrise Saturday temperatures near normal, in the lower 30s. There will be a large temperature gradient across the CWA by late afternoon, ranging from the lower 60s far northeast, to the lower 80s far southwest. Light winds will trend more easterly Saturday night/early Sunday as another weak dry inconsequential cold front arrives.
Cloud cover continues to persists over eastern Minnesota and western Wisconsin early this morning, but skies will continue to clear out this morning as much drier air filters in to the region behind a cold front.
Upper level ridging over the western USA remains in place for west to northwesterly flow aloft with variable mid and high level clouds overnight.
A relatively strong ridge remains in place over the west with 500 mb heights near the 97th percentile over the Desert Southwest. Strong, dry, northwesterly flow between these features will persist across the Mid-South today in the wake of a cold front.
Skies will remain clear and forecasted low to mid 40s look reasonable considering we are right on the back side of high pressure by daybreak.
249 AM CDT Sat Mar 26 2022 Short term forecast looks to be pretty quiet overall with cooler temperatures for this time of year as we continue in northwest flow aloft. Water vapor imagery continues to show the upper level low pushing slowly off to our east with the center over MI/IN border. A prominent upper level ridge remains over the western part of the United States, which is continuing to bring us northwest flow aloft. This has been the norm over the past several days as we are in this blocking pattern. Highs for Sunday will be a tad warmer, especially in our western CWA as winds will shift to the southeast at 850mb and at the surface. The trough over the eastern CWA, will cause winds to turn from the north to the southeast as it pushes east.
300 AM MDT Sat Mar 26 2022 Overnight GOES-W WV imagery showed the upper level ridge centered over the Intermountain West, with northwesterly flow downstream across the Rocky Mountains and High Plains. There are intervals of mid and high clouds topping the ridge and spreading southeast over the CWA. A weak surface boundary extended northwest to southeast over the high plains, with light northeasterly winds to the east and westerly winds to the west. The surface boundary will move little over the next 24 hours which will keep the cooler temperatures confined north of the Platte Valley with lower to mid 60s this afternoon. High temperatures to the south and west of the boundary will warm into the upper 60s and low 70s for lower elevations, with 40s and 50s for the higher elevations.
A closed mid/upper low will be dropping SE from the Great Lakes to the central Appalachians tonight. McD Chattanooga Airport, TN 61 34 58 38 62 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 57 30 56 32 58 / 0 0 0 0 0 Oak Ridge, TN 57 30 56 32 58 / 0 0 0 0 0 Tri Cities Airport, TN 51 27 50 26 53 / 10 0 0 0 0 NC.
Surface analysis this afternoon places a weak cold front from the Upper and Middle Mississippi Valley back through portions of the Southern Plains. The aforementioned cold front will move south into the Mid-South tonight, bringing a reinforcement of cool air. A combination of relatively clear skies, light to nearly calm winds, and temperatures dropping back into the 30s late Saturday night into Sunday morning will produce conditions favorable for the development of frost and perhaps a freeze for areas that drop down to near freezing.
Temperatures again notably warmer across southwestern sections and cooler to the northeast.
140 AM EDT Sat Mar 26 2022 Showery, unsettled conditions will continue through the weekend as a large upper level low remains overhead.
Another mid-level short wave impulse will round the base of an eastern CONUS trough today, passing across the Commonwealth by late afternoon or early evening. Temperatures are expected to remain above freezing at the surface today. High pressure will begin to nose its way into the region tonight, setting up favorable conditions for frost and/or temperatures in the mid 20s, more so over our southwest where there will be lighter winds and better clearing.
1043 PM MDT Fri Mar 25 2022 Strengthening H5 ridging across the western US continues to bring much above normal temps to western WY trough the short term period. Gradient also increases across the state, allowing southwest flow to increase for the higher elevations and the Wind Corridor from KRKS to KCPR. Strong upper level ridging continues on Sunday, keeping conditions dry and abnormally warm. With 700mb temperatures reaching +4C to +7C, highs will peak around 20F above normal, generally in the mid 70s across the lower elevations. The ridge will begin breaking down by Sunday night as a low moves onshore the West Coast.
The forecast area remains under persistent northwest flow aloft, thanks to our position between stout H5 ridging centered over the Four Corners and deep troughing over the Mid-Atlantic and Northeast CONUS. Tonight, winds will relax as high pressure over the Red River Valley begins to move south and ease the pressure gradient.
A cold front will switch the winds around to the northeast at GUY late in this forecast. /Issued 243 AM CDT Sat Mar 26 2022/ Surface winds will come around to the south today as the high builds off to the east of the Panhandles. On Sunday, as an upper level disturbance moves southeast on the leading edge of an upper high, it will help to pull a backdoor cold front across the Panhandles, this will help to cool off the northeast half of the Panhandles on Sunday over today. However, the southwest Texas Panhandle will likely get warmer on Sunday as the cooling affect from the front will be later in the day for these areas.
The weak reinforcing cold front has pushed just south of the area, currently across SOFL, leaving behind dry and clear conditions. Gentle N/NW winds with cooler than normal temperatures today. Winds become NW and increase to 15-20 kts tonight as the pressure gradient tightens between high pressure building in the GOMEX and a low departing the NE seaboard.
959 AM EDT Sat Mar 26 2022 As of 12z this morning a dry cold front was moving through the region. Models depict high pressure dominating the GOMEX and extending into the Florida peninsula. This will bring back afternoon highs in the low-mid 80s, and Even near 90 values around the Lake region.
505 AM MDT Sat Mar 26 2022 Current surface analysis shows main frontal boundary remains south and west of the region, along the lee of the Rockies, with general area of high pressure stretching from south central Canada through the eastern Plains. Upper level analysis shows trough over the eastern US, with low pressure over the southern Great Lakes region. Ridge continues to build across the western US, with fast northwest flow starting to shift east of the area. Skies are generally partly cloudy, with some mid and high clouds spilling over the ridge.
Next dry cold frontal boundary will once again increase W-NW winds to 12-15 knots with gusts of 18-25 knots at times from 16-17Z onward through sunset when winds diminish again to 4-6 knots for tonight. An upper level low was moving across the Ohio Valley, through a broad upper level trough over the eastern conus early this morning. The upper level trough axis will shift east of the area by this afternoon, and another dry surface cold front will push towards the FL/GA border before stalling. Highs will be near 70 to the lower 70s across southeast Georgia, and the low to mid 70s across northeast Florida. Overnight lows will be in the low to mid 40s across interior southeast Georgia, the mid to upper 40s across interior northeast Florida and coastal southeast Georgia, and the lower 50s across coastal northeast Florida.
At the upper levels, a broad western CONUS ridge will slightly amplify through the day, keeping us in northwest flow aloft. Highs will also be cooler than yesterday, ranging from the lower 20s northeast to the lower 40s southwest. Ridging starts to nudge in on Sunday as surface winds become southeasterly and breezy.
922 AM EDT Sat Mar 26 2022 A low pressure system moving through the region will bring a chance of snow showers today. High pressure and a drier air mass will build into the region through Sunday. Upper level low evident on satellite imagery over far southern lower Michigan early this morning is forecast to shift east across the lower Great Lakes through this afternoon. Even with air temps in the lower/mid 30s, the warm road temps should inhibit any notable accumulation on roads, so impacts should be minimal, even in the heavier/steadier shower activity. Lows tonight will be in the low to mid 30s. We will remain unseasonably cold though with daytime highs only ranging from the mid 30s north to the lower 40s in the south.
1000 AM CDT Sat Mar 26 2022 Even though skies are clear temps are slow to rise this morning within the cold air dome of high pressure across the region. High pressure continues to push into the area keeping winds breezy and skies mostly clear.
The trend of very warm temperatures will continue for at least two more days as flow aloft turns southerly by Sunday ahead of the next approaching Pacific upper level trof.
with afternoon highs ranging from the mid 30s across northeastern zones to the low 40s along the US-50 corridor. Sunday will feature ample sun for most locales as the center of the high pressure reaches Indiana.
930 AM CDT Sat Mar 26 2022 Mid to upper level cloud cover continues to stream over the ridge to the west through our area. At the upper levels, a broad western CONUS ridge will slightly amplify through the day, keeping us in northwest flow aloft. Highs will also be cooler than yesterday, ranging from the lower 20s northeast to the lower 40s southwest. Ridging starts to nudge in on Sunday as surface winds become southeasterly and breezy.
Short term forecast looks to be pretty quiet overall with cooler temperatures for this time of year as we continue in northwest flow aloft. Water vapor imagery continues to show the upper level low pushing slowly off to our east with the center over MI/IN border. A prominent upper level ridge remains over the western part of the United States, which is continuing to bring us northwest flow aloft. This has been the norm over the past several days as we are in this blocking pattern. Highs for Sunday will be a tad warmer, especially in our western CWA as winds will shift to the southeast at 850mb and at the surface. The trough over the eastern CWA, will cause winds to turn from the north to the southeast as it pushes east.
Will likely have this stratus deck linger through the morning as well, but is progged to clear out later into the afternoon as a drier airmass filters into the region as high pressure begins to build into the Upper Midwest. Expect the northwesterly upper-level flow to establish itself over the region for the remainder of the weekend as the high slowly works its way southeastward, which will help keep things cooler and dry with lighter winds across southern WI for the next few days. Looking at colder temps today with highs only topping off in the middle 30s, but if clouds clear out quicker, then temps could end up being a few degrees warmer than the current forecast. Similar daytime temps and maybe even a degree or a few warmer are expected for Sunday as the high slowly tracks across WI.
721 AM EDT Sat Mar 26 2022 Unsettled conditions are expected through the weekend as a large upper level low remains overhead. Scattered valley rain and mountain snow showers will become more numerous this afternoon and evening, and change to all snow Sunday as a cold front sweeps through.
In the wake of this front high pressure will continue to build in over the area with pleasant dry weather with ample sunshine and slightly below normal temperatures expected for the remainder of today, with similar conditions expected on Sunday. After a cool start with temperatures in the 40s and 50s from north to south temperatures will rebound back into the lower 70s north, and mid to upper 70s central and south during the afternoon with low humidity supporting very comfortable outdoor conditions. High pressure will continue to build into the Gulf of Mexico from the west through the remainder of the weekend, with a tightening pressure gradient this afternoon and evening supporting winds increasing into the Exercise Caution or perhaps low end Small Craft Advisory range.
523 AM MDT Sat Mar 26 2022 Overnight GOES-W WV imagery showed the upper level ridge centered over the Intermountain West, with northwesterly flow downstream across the Rocky Mountains and High Plains. There are intervals of mid and high clouds topping the ridge and spreading southeast over the CWA. A weak surface boundary extended northwest to southeast over the high plains, with light northeasterly winds to the east and westerly winds to the west. The surface boundary will move little over the next 24 hours which will keep the cooler temperatures confined north of the Platte Valley with lower to mid 60s this afternoon. High temperatures to the south and west of the boundary will warm into the upper 60s and low 70s for lower elevations, with 40s and 50s for the higher elevations.
649 AM EDT Sat Mar 26 2022 A low pressure system moving through the region will bring a chance of snow showers today. High pressure and a drier air mass will build into the region through Sunday. Upper level low evident on satellite imagery over far southern lower Michigan early this morning is forecast to shift east across the lower Great Lakes through this afternoon. Based on current radar trajectories, will plan to hit central portions of our fa with the highest pops, where the main band of pcpn currently across Indiana should shift east into our area through the morning hours. Lows tonight will be in the low to mid 30s. We will remain unseasonably cold though with daytime highs only ranging from the mid 30s north to the lower 40s in the south.
Low pressure centered over the Ohio Valley and Great Lakes is quickly moving east this morning, placing us in steady northwesterly flow. Northeastern counties may only approach the low 50s while locations along the Alabama border could reach 60 degrees.
Temperatures are in the lower 70s, only a few degrees above the morning lows.
641 AM CDT Sat Mar 26 2022 High pressure continues to push into the area keeping winds breezy and skies mostly clear.
Upper level analysis places ridge over the western CONUS, resulting in northwest flow over the plains. For our little neck of the woods, some high clouds continue to stream into the area over the ridge. On Sunday, south-southeast winds will increase on the backside of the high, resulting in somewhat warmer temperatures.
249 PM CDT Sat Mar 26 2022 The main concern during the overnight period will be the possibility of frost/freezing conditions as temperatures drop near or below the freezing mark, especially north of the TN River. Despite strong continental flow, afternoon temperatures have risen into the lower 60s across much of the area under abundant sunshine. Gradient winds will lessen by early morning on Sunday, and the upper trough axis currently sitting over the Atlantic Coast will shift east. A broad upper ridge will slowly stretch east through the Rockies, and moisture return will begin to increase over the ArkLaTex region.
Northwest flow will keep us on the cool side for the remainder of the weekend, and even get some freezing temps and frost across the area tonight into Sunday morning.
At 19z GOES water vapor imagery depicts broad ridging over the western two-thirds of the conus and cyclonic flow toward the east coast anchored by an upper PV anomaly ejecting from the Great Lakes region. Surface pressure field remains compressed in the wake of yesterday's cold frontal passage, and combined with persistent cold air advection has led to another cool and blustery day. Expecting winds to fall off considerably overnight into Sunday as the ridge axis moves through. Next significant pattern shift quickly arrives as a large trough drops into the western conus.
211 PM MDT Sat Mar 26 2022 Western CONUS ridge will build and slowly shift east as a deep upper trough digs in the eastern Pac. The exception will be over the WY BH tonight and possibly around the Pine Ridge area late as a stronger round of WAA ensues tonight, supporting isolated rain or snow showers. Upper ridge will shift east and allow warmer conds Sun with temps in the 50s and 60s (possibly lower 70s over far western Campbell county). Thicker cirrus will linger across the area on the front side of the ridge Sunday, limiting insolation and temp rises, esp across NW SD.
Mid to upper level cloud cover continues to stream over the ridge to the west through our area. At the upper levels, a broad western CONUS ridge will slightly amplify through the day, keeping us in northwest flow aloft. Highs will also be cooler than yesterday, ranging from the lower 20s northeast to the lower 40s southwest. Ridging starts to nudge in on Sunday as surface winds become southeasterly and breezy.
A trough digging off the coast will produce southwest to south flow overhead, allowing for the warmest temperatures of the year so far.
/Issued 1230 PM CDT Sat Mar 26 2022/ /Through Sunday/ A stalled frontal zone draped through western North Texas and southern Oklahoma is beginning to lift back northward in response to upper ridging and strengthening southerly low-level flow. A few high temperature readings in the low 90s are possible in this area, while the rest of the forecast area tops out in the 80s. Overnight lows will be several degrees warmer than previous nights, mainly in the 50s and upper 40s. The upper ridge will continue to build overhead tomorrow leading to numerous 90+ high temperature readings west of I-35.
The high will slide east across the area overnight, and the resulting light winds will produce effective radiational cooling. Minimum temperatures will dip below freezing tonight, posing a risk for sprouted tender vegetation. Cool temperatures will continue Sunday under the cold air advection along the eastern side of the low-level ridge and increased cloud cover. Winds will remain light through the day tomorrow as the high pushes deeper into the forecast area. Cool temperatures will continue overnight Sunday with lows near freezing across the region.
Weak warm front moving slowly north through the area today and tonight.
303 PM EDT Sat Mar 26 2022 Highlights: ** Continued below normal temperatures, with below freezing temperatures tonight ** Light scattered snow/rain showers to continue through this evening Broad upper level troughing has remained to the NE of Indiana throughout today, and will continue over through most of tonight. These scattered showers have lead to slightly a cooler surface layer, further enforcing precipitation through a shallower PBL. Expect temperatures to be in the low 40s with a significant cool off into the low 20s overnight. Temperatures will be on a warming trend for the first half of the work week as upper NW flow weakens and ridging moves in.
Expecting mainly cool and clear conditions with afternoon high temps ranging from the lower 40s N to upper 40s S.
(This afternoon through Sunday) The upper ridge over AZ and NM will continue to drift eastward through the weekend and be associated with hot conditions in southwestern OKlahoma and adjacent parts of Texas by Sunday afternoon. Easterly winds around the base of the ridge will exist over roughly the northern half of Oklahoma tonight and through Sunday. There will effectively by a front in the southern part of Oklahoma with increasing south winds in the south in response to a deepening surface pressure trough east of the Rockies. To the north of this boundary, easterly winds and more humid and cooler air will exist.