Aikyam-Lab/Synoptic-Bench huggingface dataset:
1024 PM CDT Sat Mar 26 2022 (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.
1044 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. Main upper trough will shift well south of the region with bulk of LL moisture, with the northern stream trough digging into the backside of the long wave trough as the main upper trough stalls.
Warmer temps will build into the region toward midweek, with precipitation chances making a return as well. The lone exception to this may be the far SW stretches of the local area, including parts of SE IN and N/NE KY, where a bit more sunshine will support warmer daytime highs in the lower 40s. Mostly clear skies should prevail in most areas due to the dry air under the anticyclone.
Dewpoints are now in the mid teens north to the lower 20s south. This should allow enough clear hours to again hit lows in the teens north the lower 20s south (again nearly identical to this morning), before the clouds arrive.
312 AM CDT Sun Mar 27 2022 Summary: Quiet and cold for today with warmer temps expected Monday. Main attention still remains on mid-week system which will bring accumulating snow, sleet, rain, and possibly freezing rain. There will be plenty of sun and thereâs a chance the higher sun angle against the low albedo trees may be able to overachieve on temperatures even with cold northwest flow aloft. Monday will be quiet as well with winds turning southerly as the ridge aloft pushes east. Temperatures will trend warmer with highs from around 30 in the Arrowhead to the upper 30s to around 40 in central Minnesota east into the Hayward area.
No changes are needed to the forecast this evening as high pressure builds over the area from the northwest. McD Chattanooga Airport, TN 58 37 61 43 76 / 0 0 0 10 10 Knoxville McGhee Tyson Airport, TN 54 32 56 39 69 / 0 0 0 10 10 Oak Ridge, TN 54 31 56 39 69 / 0 0 0 10 10 Tri Cities Airport, TN 49 25 52 32 61 / 0 0 0 10 20 TN.
Strawberries may be the closest to being most vulnerable to freezing temperatures, but agricultural experts indicated that commercial growers have taken steps to mitigate any significant damage potential. The duration of near or below freezing temperatures is likely be less than three hours in some areas. High pressure over southern Canada will keep us dry and cool for the period. In the upper levels troughs will be over both coasts with high pressure centered over the Plains.
252 AM CDT Sun Mar 27 2022 A cold front will continue to push southwest across the Panhandles today.
251 AM MDT Sun Mar 27 2022 Overnight GOES-W WV imagery showed the upper level ridge axis from the Four Corners to the Northern Rockies. The upper ridge axis to the west will translate east over the Rockies and into the Great Plains through Monday, as a potent upper level low pressure system moves ashore into CA. The flow aloft will become southwesterly and increase Monday, with the low level thermal ridge located over the eastern WY plains and NE Panhandle.
/NEW/ /Overnight through Monday/ Mid level ridging will prevail across the Southern Plains today into Monday keeping things hot and dry. Fire weather concerns will persist today, especially west of I-35 where afternoon humidity will drop to between 8-12% with temperatures in the lower 90s. Otherwise, it'll be mostly sunny today with highs ranging from the lower 80s east to lower 90s west. Monday will feature mostly sunny skies with highs a few degrees cooler in the mid 80s.
Forecast for the rest of the weekend and into Monday is generally benign, as a low/mid level ridge slides out of SE TX and migrates slowly EWD across the northern Gulf, deepening the southerly flow already in place across the region. Temperature-wise, highs the next couple of days will continue to climb into the upper 70s to lower 80s, with lows the most impacted by the returning MSTR, running 5 to 10 degrees warmer tonight vs.
Upper level ridging will build in from the west on Monday, and combined with the aforementioned southeasterly surface flow (should be on the breezy side Monday), we'll usher in some warmer air with temperatures getting back into the 50s and 60s.
1146 PM CDT Sat Mar 26 2022 Upper level ridging across the western CONUS will keep northwest flow aloft through Sunday night. Conditions on Sunday will be similar today, however 850 mb temperatures will be slightly warmer across the western CWA as the upper level ridge slowly moves east. Areas to the east, did blend temperatures slightly cooler, as temperatures aloft won't be as warm, generally around 0 to 5 degrees at 850mb and in the upper 40s to low 50s at the sfc. Upper level ridge moves east and becomes centered over the Plains Monday, this in combination with gusty southerly sfc winds will aid temperatures reaching the upper 70s to low 80s across western Nebraska.
Surface analysis this evening shows the frontal boundary which helped usher in some cooler, drier, and breezy conditions today is positioned well to the south over the Northern Gulf of Mexico. High pressure has settled into the area and is centered to our west over the Mid MS valley. Expect a window overnight where temperatures, mainly north of the TN River, will drop below freezing for a couple of hours. 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.
850 mb temperatures no warmer than -14 C will blanket the area, which means even with full mixing, daytime temperatures should stay in the 20s in most locations. We will be not much warmer than the record for coldest high temperature recorded on March 27. Synoptic scale lift in the low levels will also be lacking.
1014 PM CDT Sat Mar 26 2022 Looking at quiet and cool early Spring conditions continuing through the remainder of the weekend, as weak high pressure slides east across the region tonight into Sunday. Speaking of dry air, mixing into this dry layer this afternoon has dropped mid-afternoon dew points into the lower single digits in some areas. Not only is this indicative of the dryness which any attempt at light precip would have to overcome, but it also signals a potential for cooler than guidance overnight lows given the light winds within the ridge axis. Highs Sunday will stay on the cool side of normal, with readings topping out slightly warmer than today, in the mid 30s to mid 40s.
355 AM CDT Sun Mar 27 2022 Dry northwest flow will keep quiet weather conditions and cooler than normal temperatures in the forecast today and Monday. In the mid and upper levels, the area remains wedged between persistent troughing over the northeast CONUS and increasingly amplified ridging over the Rocky Mountains. Monday will be quite similar to today's weather, though cloud coverage will be a bit greater and temperatures will moderate a touch into the low to middle 50s across the region.
Under full sunshine, highs will rise into the lower 70s across southeast Georgia and coastal northeast Florida, and the mid 70s elsewhere. Weak high pressure to the west and northwest of the area will build into the area tonight, and winds will diminish.
Looking at the bigger picture, the ridge over the western CONUS is slightly weaker than 24 hours ago and and is shifting slowly to the east. At the surface, a weak cold front is sinking southward across the CWA and will shift winds from more of a northeasterly direction.
Expecting mainly cool and clear conditions with afternoon high temps ranging from the lower 40s N to upper 40s S. Highs Monday range from the mid/upper 40s in our northeastern areas, up to the low 50s in our southwest.
245 AM MDT Sun Mar 27 2022 Today through Monday: A ridge will move into place out west. This will make it a few degrees warmer each day until highs ranging from 50 to 70 degrees come to pass Monday with the crest of the ridge moving through.
Weak warm front moving through the area tonight then stalling over Southern British Columbia Sunday and Sunday night. Upper level trough Monday with upper level ridge building behind the trough Monday night.
Regional and global models have trended slightly cooler for areas north of I-44 with the warm front not progressing as far north as previously prog'd. The passage of the warm front shifts winds to the south and the combination of diabatic heating and strong WAA will lead to 90+ deg surface temperatures across parts of north Texas. With the limited progression of the warm front, an impressive thermal gradient will be observed tomorrow afternoon with temperatures ranging from the mid-60s (north Oklahoma) to low-70s (central Oklahoma) to low-90s (north Texas).
1040 PM MDT Sat Mar 26 2022 Strong H5 ridge continues to push slowly east across the western US during the next 24 hours, keeping weather tranquil and warm. With H7 temperatures peaking at +5 to +8C tomorrow, high temperatures will soar into the mid 70s for lower elevations, with even the higher mountain peaks approaching 40 degrees. This, along with the warmer temperatures mixing gusts down from aloft, will bring gustier sfc winds. The upper-level ridge that has been in place through the weekend will begin eroding on Monday as a strong Pacific low moves onto the West Coast.
410 AM EDT Sun Mar 27 2022 High pressure will build into the region today through Monday keeping very dry air in place with weakening winds.
High pressure will take hold from the NW throughout the day, centering itself over the state tonight, and then slowly drifting east Monday. Meanwhile, a strong upper level trough will remain in place across much of the eastern U. For overnight, with high pressure nearly overhead providing strong subsidence and light winds, expect good radiational cooling. Still looking at gusts between 10 and 15 kts, but continued sunshine will help to modify the atmosphere a bit warmer - with highs in the mid 40s to low 50s.
242 AM MDT Sun Mar 27 2022 Upper ridging will be the dominant upper feature through the short term period. At the surface, a nearly stationary front will be waffling near the Kansas-Colorado border area, separating cooler air to the east and much warmer air to the west. Maintained the trend of a more western location with cooler upper 50s to lower 60s across most of the forecast area Sunday afternoon, but temperatures warming into the upper 60s to lower 70s across far western locations (along and west of Highway 59), with possibly even warmer temperatures there.
223 AM MDT Sun Mar 27 2022 Upper ridging prevails through tonight and into Monday, with dry and warm conditions expected. This should give a warm start to Monday, which remain under the the ridge axis through much of the day. A broad upper level trough will move into the region Monday evening, bringing precip across the region through the night. There is also a slight possibility for thunder as this system as the cold front moves into the region Monday night, but potential is limited.
Even so, with soundings indicating dry air residing in the lower levels would expect a flurry at best.
315 AM CDT Sun Mar 27 2022 Upper level ridging continues to build eastward across the western half of the CONUS. As the high continues to build into the area today, we'll see notable weaker winds than yesterday. We'll see another night of efficient cooling tonight with weak winds and at least partly clear skies, dropping early morning lows back to near or below freezing once again.
It will continue to be a cloudy and unseasonably chilly (and breezy) afternoon for the area as we remain on the back (westward) side of a large area of low pressure centered over New England. Temperatures have held steady in the lower 30s, and these values are likely to change little through sunset as the deck of flurry producing strato-cu continues to blanket the area. Expect overnight low temperatures to once again drop into the upper teens to the lower 20s by early Monday morning. KJB Unseasonably cold conditions will continue into Monday on N/NE flow, with highs still struggling to reach the low 40s (mid 30s) in northeast Illinois (near Lake Michigan).
619 AM CDT Sun Mar 27 2022 Summary: Quiet and cold for today with warmer temps expected Monday. Main attention still remains on mid-week system which will bring accumulating snow, sleet, rain, and possibly freezing rain. There will be plenty of sun and thereâs a chance the higher sun angle against the low albedo trees may be able to overachieve on temperatures even with cold northwest flow aloft. Monday will be quiet as well with winds turning southerly as the ridge aloft pushes east. Temperatures will trend warmer with highs from around 30 in the Arrowhead to the upper 30s to around 40 in central Minnesota east into the Hayward area.
336 AM PDT Sun Mar 27 2022 Cooler with widespread showers tonight through Monday. Dry conditions are forecast across interior NorCal through this afternoon ahead of an approaching upper level low situated well offshore per latest satellite imagery. This system will bring cooler temperatures as well as widespread precipitation chances tonight into Monday. A dry pattern returns by mid-week as ridging builds in. Forecast highs in the Valley will be in the low to mid 70s.
Northwesterly flow aloft today will give way to upper ridging by Monday. Highs should be a few degrees higher than yesterday, but with a starting point near the zero mark readings even this afternoon will be still mostly below freezing. Southeasterly winds will pick up overnight as a trough develops to our west, bringing a bit more mixing than we are getting this morning, and clouds will be on the increase. The upper ridging should help temps rise back to near seasonal averages in the 30s and 40s, but winds will bring a very blustery feeling.
A cold front passage on Monday will drop temperatures several degrees and bring increased winds, along with chances for thunderstorms in the afternoon.
/Issued 252 AM CDT Sun Mar 27 2022/ A cold front will continue to push southwest across the Panhandles today.
617 AM MDT Sun Mar 27 2022 High pressure over the West will continue to bring dry and unseasonably warm weather to the forecast area today.
333 AM MDT Sun Mar 27 2022 High pressure over the West will continue to bring dry and unseasonably warm weather to the forecast area today.
611 AM CDT Sun Mar 27 2022 Upper level ridging continues to build eastward across the western half of the CONUS. As the high continues to build into the area today, we'll see notable weaker winds than yesterday. We'll see another night of efficient cooling tonight with weak winds and at least partly clear skies, dropping early morning lows back to near or below freezing once again.
This bndry is progged to slowly retreat Nwd later today into SE OK/SW and Scntrl AR in response to increasing SWrly low level winds, which will result in another warm afternoon S of the bndry over E TX/N LA as temps climb back into the lower/mid 80s.
401 AM CDT Sun Mar 27 2022 A mid level baroclinic zone will move east today and tonight as upper level ridging slowly approaches the high plains. Easterly winds today in the wake of a cold front will result in cooler highs in the 50s to mid 60s. Good radiational cooling tonight will allow temperatures to fall into the upper 20s to lower 30s from Dodge City to Hays where winds may go light after midnight, with slightly warmer readings elsewhere.
Dry northwest flow will keep quiet weather conditions and cooler than normal temperatures in the forecast today and Monday. In the mid and upper levels, the area remains wedged between persistent troughing over the northeast CONUS and increasingly amplified ridging over the Rocky Mountains. Monday will be quite similar to today's weather, though cloud coverage will be a bit greater and temperatures will moderate a touch into the low to middle 50s across the region.
Warm frontal rain showers continue to lift north through the day today. The trough will move through on Monday followed by a ridge building in Monday night.
210 AM PDT Sun Mar 27 2022 High pressure will give way to an approaching low pressure system tonight through Monday night.
949 AM CDT Sun Mar 27 2022 Summary: Quiet and cold for today with warmer temps expected Monday. Main attention still remains on mid-week system which will bring accumulating snow, sleet, rain, and possibly freezing rain. There will be plenty of sun and thereâs a chance the higher sun angle against the low albedo trees may be able to overachieve on temperatures even with cold northwest flow aloft. Monday will be quiet as well with winds turning southerly as the ridge aloft pushes east. Temperatures will trend warmer with highs from around 30 in the Arrowhead to the upper 30s to around 40 in central Minnesota east into the Hayward area.
435 AM CDT Sun Mar 27 2022 The ArkLaMiss region will remain under an upper ridge that extends from the far west Southern Plains to the Lower Mississippi Valley region. Overnight, the area is expected to remain partly cloudy with lows in the lower to upper 40s predominantly north of I-20 and lower to middle 50s south of I- 20. /AJ/ Dry weather will begin the week as upper ridging moves into the region from the west.
545 AM CDT Sun Mar 27 2022 Seasonably strong northwest flow aloft continues across the TN Valley this morning, in the gradient between a longwave trough across eastern North America and a high amplitude ridge situated across the western portion of the continent. Due to the presence of more cloud cover today compared to yesterday, highs will be several degrees cooler, ranging from the u40s-l50s/northeast to the u50s- l60s/southwest.
Seasonably strong northwest flow aloft continues across the TN Valley this morning, in the gradient between a longwave trough across eastern North America and a high amplitude ridge situated across the western portion of the continent. Due to the presence of more cloud cover today compared to yesterday, highs will be several degrees cooler, ranging from the u40s-l50s/northeast to the u50s- l60s/southwest.
/AJ/ The ArkLaMiss region will remain under an upper ridge that extends from the far west Southern Plains to the Lower Mississippi Valley region. Overnight, the area is expected to remain partly cloudy with lows in the lower to upper 40s predominantly north of I-20 and lower to middle 50s south of I- 20. /AJ/ Dry weather will begin the week as upper ridging moves into the region from the west.
Near record high temperatures are expected, with many valley locations across western Montana and north-central Idaho reaching the low to mid 70s. The lowest valleys in Idaho county Idaho, may even crack 80s. The strong ridge of high pressure will finally begin to breakdown late Monday, as a Pacific trough moves inland over the Intermountain West.
Clear skies, dry conditions and light winds this evening will permit temperatures to fall quickly after sunset with eventual lows in the L-M50s; perhaps some U40s in normally cooler rural locations of the interior. MClear skies and L/V winds this evening and overnight with high pressure moving into the area from the west. Min RH values will be in the low to mid 20s for much of the area, and while ERC values will be high, northwest to north wind speeds look to remain just below 15 mph.
Otherwise, deep layer ridging continues to slide east and is helping to push out a persistent upper level trough that has remained anchored over the eastern U. As this ridge slides further east and over top the Sunshine State, it will continue to filter in dry air across the region.
522 AM MDT Sun Mar 27 2022 Overnight GOES-W WV imagery showed the upper level ridge axis from the Four Corners to the Northern Rockies. The upper ridge axis to the west will translate east over the Rockies and into the Great Plains through Monday, as a potent upper level low pressure system moves ashore into CA. The flow aloft will become southwesterly and increase Monday, with the low level thermal ridge located over the eastern WY plains and NE Panhandle.
Dry weather will continue today, with dewpoints lowering to the lower 20s and upper teens throughout the day.
Low level south-southwesterly flow and a strengthening thermal ridge will allow temperatures to climb into the lower and possibly even the mid 90s.
646 AM EDT Sun Mar 27 2022 High pressure will build into the region today through Monday keeping very dry air in place with weakening winds.
In the wake of this boundary even drier air will advect into the forecast area the remainder of the day on northwest wind flow with afternoon humidity values falling into the 20 to 25 percent range as high pressure over the central Gulf maintains very pleasant dry weather with ample sunshine.
A mid level baroclinic zone will move east today and tonight as upper level ridging slowly approaches the high plains. Easterly winds today in the wake of a cold front will result in cooler highs in the 50s to mid 60s. Good radiational cooling tonight will allow temperatures to fall into the upper 20s to lower 30s from Dodge City to Hays where winds may go light after midnight, with slightly warmer readings elsewhere.
High pressure will move to the east today, leaving us with one last day of above normal day temperatures. Winds will increase out of the southwest today and Monday in advance of an approaching low pressure.
205 PM MDT Sun Mar 27 2022 Deep upper trough will shift east in the period with the front side ridge crossing the region Monday. WAA is ongoing across the area today, although SE LL winds (per a deepening lee side trough) continue to remain gusty on the SD plains. Upper trough will shift east Tue, with an associated cold front traversing the plains. Main upper trough will shift well south of the region with bulk of LL moisture and lift, with the northern stream trough digging into the backside of the long wave trough as the main upper trough stalls. This will support a period of cyclonic flow aloft from Tues through Wed, with chances for precip, best with the initial upper trough. Models are indicating another NW flow upper trough traversing the region Fri-Sat.
A change in airmass is forecast to occur on Tue, when a surface warm front moves northward through the PAH forecast area. at or below freezing in many areas. Highs on Mon will be a little warmer than today.
126 PM EDT Sun Mar 27 2022 Cool high pressure builds in tonight and remains on Monday.
A ridge of high pressure is centered over the Upper Midwest and stretches into the Middle Mississippi Valley and portions of the Lower Mississippi Valley late this morning. Looking at the bigger picture, the ridge over the western CONUS is slightly weaker than 24 hours ago and and is shifting slowly to the east. At the surface, a weak cold front is sinking southward across the CWA and will shift winds from more of a northeasterly direction.
Be prepared for mountain snow, rain showers in the lower elevations, notably cooler temperatures, and a few thunderstorms Monday. Southerly wind gusts of 30-45 mph in the lower elevations and gusts 60-80 mph for the Sierra ridges will continue this evening and into tonight as the weather system moves into California.