Aikyam-Lab/Synoptic-Bench huggingface dataset:
1005 PM CDT Mon Apr 5 2021 A mid-level ridge will advance slowly eastward across the TN Valley region overnight, with tranquil weather conditions expected to persist through Tuesday morning. Increasing ridging will continue the warming trend as high temperatures peak in the upper 70s to low 80s Tuesday and Wednesday. Increasing southerly flow will transport warm, moist Gulf air into the Southeast, raising dew points from the low 50s on Tuesday into the upper 50s by Wednesday and increasing cloud cover.
(Today and tonight) A strong, breezy southerly wind will continue today into this evening in advance of a trough/low moving across the northern and central Rockies. Winds ahead of an approaching cold front may be slightly weaker across the western 1/3 of Oklahoma with stronger wind gusts in central and north central Oklahoma. This evening, the dryline will briefly retreat to the west before a fast moving cold front pushes across the area overnight. Closer to the approaching trough, a few elevated storms may develop across north central Oklahoma with large hail the main concern.
This low level jet will shift east later this morning. With the Idaho's low approaching, the lee trough east of the Rockies will strengthen keeping wind speeds elevated overnight. Westerly winds will increase to 20-30 mph by late morning with the highest speeds expected up across our northwestern counties. RH values will be bone dry with RH values in the single digits everywhere except the eastern Rolling Plains which should only drop into the lower teens. A cold front will push through the region by early Wednesday as an upper low passes to our north and east.
Unseasonably hot weather will continue across much of the region today along with the addition of gusty west winds as a low pressure system passes over northern Nevada. Breezy northwest winds are expected this evening as a surface cold front makes its way through southern NV and through the rest of the CWA overnight. A cold front was moving through the Las Vegas Valley at 04Z, turning winds to the northwest. A cold front was moving through the northern Mojave Desert at 04Z, and winds will shift to northerly behind it as it crosses the desert overnight.
252 AM MDT Tue Apr 6 2021 Upper low is currently located in far northern UT (a position much further south than we thought a couple days ago) with a large area of diffluent flow over WY and into southeast MT. Despite the very southerly track of the upper low (straddling the WY/CO border today), moist isentropic ascent will continue to bring precip to most of the southern half of our cwa. Light precip will linger invof Carter county into the evening before tapering off, as upper low moves into the central plains. Skies will clear from west to east as ridge begins to build from the west.
349 AM EDT Tue Apr 6 2021 High pressure centered south of the region will result in a continuation of dry and warm conditions. A slow moving cold front will bring an increasing chance of rain for mid to late week. Another warm spring day ahead as a mid-level ridge axis amplifies over the Ohio Valley. Temperatures fall into the low to mid 50s. Have limited this potential to far SW portions of the forecast area, with a slow spread to the east as the upper low advances eastward into the evening.
231 AM EDT Tue Apr 6 2021 High pressure remains centered across the southeastern states with a weak stationary front across the area. Another area of low pressure approaches from the west later in the week. Meanwhile, low pressure is off the NE coast. Despite some of the high res guidance trying to show some light rain this morning, the low levels are dry as advertised with dewpoint depressions of 10-15 degrees, so outside of an isolated sprinkle not much is expected.
328 AM EDT Tue Apr 6 2021 High pressure will prevail through Wednesday night.
A few minor updates to the forecast were made for the winds overnight and to keep temperatures a little warmer where winds keep up for the overnight, otherwise forecast remains on track.
The mid-state will squeak out one more dry day today as SFC/LL high pressure and weak upper ridging slowly break down. Additionally, fairly deep ML/UL trough will remain across the eastern US the next bunch of days. Showers will be minimal most of Thu trough Fri, but a SFC wave and more favorable upper support will accompany the front on Sat, thus we will see a another big increase in shower/storm activity late Fri night/Sat.
A slow-moving low pressure system will move into the region tonight with rain and thunderstorm chances expanding northward into the Upper Midwest.
/issued 310 AM CDT Tue Apr 6 2021/ High pressure remains over the Southeastern United States this morning with upper ridging occurring aloft. An upper level low pressure system will move from the Rockies into the Central Plains by Wednesday. Showers and thunderstorms are expected to develop along and ahead of the cold front. The system will be occluding as the cold front begins to push into the Mid-South, pinching off the instability.
651 AM EDT Tue Apr 6 2021 High pressure through tonight. Leaned toward higher end of guidance envelop for high temperatures today and toward the lower end in the valleys for lows tonight. However, the low level west to northwest flow may transport enough moisture atop the mixing layer to reintroduce cloud across the north overnight tonight. Upper ridge will strengthen over the area on Wednesday, with very warm temperatures, and for the most part dry conditions.
432 AM CDT Tue Apr 6 2021 Unseasonably warm conditions will continue today and tonight with upper level ridging over our area along with continued south- southwest winds. An upper level low over northern UT early this morning will move east-southeastward through KS on Wednesday, then east-northeastward from west central MO to northeast MO Wednesday night. Convection will move into northeast and central MO late tonight as upper level divergence increases over this area ahead of the approaching upper level low, and as low level moisture convergence increases on the nose of a strong southwesterly low level jet extending into southwest MO. The showers and storms will shift east of the forecast area by late Wednesday night as a dry slot moves into our area south of the upper level low.
943 AM EDT Tue Apr 6 2021 No meaningful changes to the ongoing forecast as high pressure remains in firm control. Short Term (Today and Wednesday): Deep ridging will prevail resulting in quiet/dry conditions.
613 AM CDT Tue Apr 6 2021 Mild conditions are currently occurring across the area early this morning, as temperatures are in the upper 50s to the lower 60s. The pressure gradient will tighten across the area today ahead of the low. Another warm day is on tap for day, with highs expected to top out in the upper 70s to the lower 80s. Also, overnight as the upper level low moves into the plains, the cap for an elevated lifted parcel will begin to weaken across the area. As the upper level low moves across the plains a front will move east across the area. The front should be around the Highway 65 corridor by mid-day Wednesday.
Compact upper low currently located over northern Utah/southeast Idaho. For today, upper low tracks through Colorado this afternoon. so high confidence that much of northeast Wyoming and the higher terrain of southwest South Dakota will change over to snow. For the higher terrain of the Pine Ridge in southwest South Dakota, snowfall intensity will pick up this afternoon into evening.
A Pacific Northwest low will exit the area this afternoon, resulting in cooler temperatures and lingering showers in its wake. High pressure will return by Wednesday, resulting in dry conditions as temperatures remain mild.
355 AM MDT Tue Apr 6 2021 Key Messages: 1) Cooler weather today after 3 straight days with most sites hitting record high temperatures. Heaviest snowfall expected along the Pine Ridge with 3-5 inches. An upper level low is quickly progressing into northern UT with latest GOES WV imagery showing a large cloud shield over much of central Wyoming. Widespread 1 to 3 inches of snowfall is expected for lower elevations north of the North Platte River Valley while locally higher amounts are likely along the Pine Ridge.
443 AM CDT Tue Apr 6 2021 Upper low continues to move southeast out of the Intermountain West and into the Rockies early this morning. The best chances will come tonight with the better forcing associated with the cold front.
658 AM EDT Tue Apr 6 2021 High pressure centered south of the region will result in a continuation of dry and warm conditions. A slow moving cold front will bring an increasing chance of rain for mid to late week. Another warm spring day ahead as a mid-level ridge axis amplifies over the Ohio Valley. Temperatures fall into the low to mid 50s. Have limited this potential to far SW portions of the forecast area, with a slow spread to the east as the upper low advances eastward into the evening.
Tuesday will see slightly below average temperatures as CAA continues to advect cooler temperatures. Upper-level ridging gives the active short- term a nice quiet end. With the trough moving east across the Central Plains Wednesday night, clear skies and colder temperatures will continue across the state.
High pressure aloft will dominate our weather this week.
551 AM CDT Tue Apr 6 2021 Unseasonably warm conditions will continue today and tonight with upper level ridging over our area along with continued south- southwest winds. An upper level low over northern UT early this morning will move east-southeastward through KS on Wednesday, then east-northeastward from west central MO to northeast MO Wednesday night. Convection will move into northeast and central MO late tonight as upper level divergence increases over this area ahead of the approaching upper level low, and as low level moisture convergence increases on the nose of a strong southwesterly low level jet extending into southwest MO. The showers and storms will shift east of the forecast area by late Wednesday night as a dry slot moves into our area south of the upper level low.
1050 AM EDT Tue Apr 6 2021 High pressure will gradually build into the region over the next few days and bring relatively quiet weather to the North Country. Upper low that was just south of Nova Scotia this time last night has moved southward and taken the stronger low level flow with it. Dry weather is expected for the entire area tonight for Wednesday as well as upper ridging starts to slowly build into the area. High temperatures will be several degrees warmer than today with highs in the mid 50s to mid 60s.
Warm temperatures continue today with highs across the lower deserts near 90 degrees. Highs will rebound back into the lower and middle 90s during the latter half of the week with no chance of rain in the forecast period. Although this feature is well removed from the CWA a weak trough axis associated with this trough is currently sweeping through the area, leading to a reduction in upper level heights compared to the last few days. Over the next day as the system moves east, somewhat cooler air will filter in, leading to a minimal decline in temperatures. High temperatures will be near 90 degrees today across the lower deserts.
Winds will slowly diminish in the lowlands tonight, but remain windy over the mountains. Most areas will be slightly cooler on Wednesday, but critical fire weather conditions will be possible again for portions of the state.
644 AM EDT Tue Apr 6 2021 High pressure remains centered across the southeastern states with a weak stationary front across the area. Another area of low pressure approaches from the west later in the week. Meanwhile, low pressure is off the NE coast. Despite some of the high res guidance trying to show some light rain this morning, the low levels are dry as advertised with dewpoint depressions of 10-15 degrees, so outside of an isolated sprinkle not much is expected.
Dry conditions as afternoon temps warm into the low 80s across east-central FL. Favorable boating conditions across the local waters for the next several days as high pressure remains in control.
Short Term (Today and Wednesday): Deep ridging will prevail resulting in quiet/dry conditions.
An upper level trough is swinging eastward away from the Great Basin area and a ridge is building into California behind it. Some patches of high clouds tracking across the top of the building ridge are passing over central California, while our temperatures are running seasonably cool and on track for morning lows to bottom out right around normal.
944 AM EDT Tue Apr 6 2021 High pressure will prevail through Wednesday night.
623 AM EDT Tue Apr 6 2021 Low pressure south of Nova Scotia will remain nearly stationary through today and then move southeast Wednesday.
935 AM EDT Tue Apr 6 2021 High pressure continues across the area today, with afternoon highs on track to reach into the upper 70s near the coast and lower to mid 80s inland. High pressure in place across the area will keep light winds and slight seas through the end of the week.
549 AM EDT Tue Apr 6 2021 A stalled warm front will remain draped across western Pennsylvania through midweek, as ridge of high pressure remains over the eastern part of the state.
749 AM EDT Tue Apr 6 2021 High pressure centered south of the region will result in a continuation of dry and warm conditions. A slow moving cold front will bring an increasing chance of rain for mid to late week. Another warm spring day ahead as a mid-level ridge axis amplifies over the Ohio Valley. Temperatures fall into the low to mid 50s. Have limited this potential to far SW portions of the forecast area, with a slow spread to the east as the upper low advances eastward into the evening.
/issued 400 AM CDT Tue Apr 6 2021/ SHORT TERM (Now through Wednesday): Low pressure develops across the Plains, strengthening the pressure gradient along the lower Texas coast. A dryline is expected to work east across the CWA Wednesday afternoon, dropping RH values into the teens and boosting temperatures into the upper 90s and just over 100 degrees across portions of Zapata, Jim Hogg, and Starr counties, with low to mid 90s across the low to mid RGV.
450 AM CDT Tue Apr 6 2021 Upper low continues to move southeast out of the Intermountain West and into the Rockies early this morning. The best chances will come tonight with the better forcing associated with the cold front.
847 AM EDT Tue Apr 6 2021 Low pressure south of Nova Scotia will remain nearly stationary through today and then move southeast Wednesday.
613 AM CDT Tue Apr 6 2021 (Today and tonight) A strong, breezy southerly wind will continue today into this evening in advance of a trough/low moving across the northern and central Rockies. Winds ahead of an approaching cold front may be slightly weaker across the western 1/3 of Oklahoma with stronger wind gusts in central and north central Oklahoma. This evening, the dryline will briefly retreat to the west before a fast moving cold front pushes across the area overnight. Closer to the approaching trough, a few elevated storms may develop across north central Oklahoma with large hail the main concern.
Weak upper level ridging will keep Western Washington dry today.
A few areas on the lee side of the high terrain (St. The overnight breezes are keeping overnight temperatures a bit warmer than previous nights for much of the area. Winds on Tuesday will shift to become northwesterly as the trough over northern Utah continues to move eastward. Temperatures will be a few degrees cooler area wide on Tuesday. The rest of the forecast period will be characterized but building high pressure and warming.
558 AM MDT Tue Apr 6 2021 Key Messages: 1) Cooler weather today after 3 straight days with most sites hitting record high temperatures. Heaviest snowfall expected along the Pine Ridge with 3-5 inches. An upper level low is quickly progressing into northern UT with latest GOES WV imagery showing a large cloud shield over much of central Wyoming. Widespread 1 to 3 inches of snowfall is expected for lower elevations north of the North Platte River Valley while locally higher amounts are likely along the Pine Ridge.
Recent model trends show areas south of the warm front could reach 80 degrees, while areas north of front stay in the 60s.
Upper low continues to move southeast out of the Intermountain West and into the Rockies early this morning. The best chances will come tonight with the better forcing associated with the cold front.
331 AM MDT Tue Apr 6 2021 Clouds and light mountain snow lingering over the southern half of the region will exit the area today, leaving skies mostly clear tonight through Wednesday, as breezy southwest winds and warmer than normal temperatures move back into the area.
733 AM EDT Tue Apr 6 2021 High pressure will gradually build into the region over the next few days and bring relatively quiet weather to the North Country. Upper low that was just south of Nova Scotia this time last night has moved southward and taken the stronger low level flow with it. Dry weather is expected for the entire area tonight for Wednesday as well as upper ridging starts to slowly build into the area. High temperatures will be several degrees warmer than today with highs in the mid 50s to mid 60s.
Showers and thunderstorms will develop Wednesday afternoon and evening along and ahead of a cold front.
Even with the cooling, afternoon highs will peak six to eight degrees warmer than normal.
At 500 mb, there was a closed low over southern ID, with 12 hour height falls in excess of 100 meters over northeast NV and northwest UT. Thermal ridge at 700 mb was in place from Mexico northward across NM and CO. Surface analysis early this morning indicated a low pressure center of around 990 mb over northeast CO with a nearly stationary front extending northeast from the low across NE into southeast SD, northwest IA and then up into southern MN. Dewpoints in our area were mostly in the lower or mid 50s, but 30s were noted north of the front in the far northwest corner of the forecast area (dewpoints at KYKN and KONL were in the mid 30s).
At the surface, high pressure straddles Florida, with moderate northeast to east breezes observed across the coastal waters of the Florida Keys. Temperatures are in the mid to upper 70s with dewpoints in the lower 60s, a few degrees higher than yesterday at this time. A high pressure system centered off the east coast of Florida will shift southeastward today through Wednesday.
640 AM CDT Tue Apr 6 2021 (Today and tonight) An upper level low will track east across Colorado today and into Kansas by tomorrow morning. Temperatures will warm into the mid and upper 80s for most of the area this afternoon, except west of the dryline, where highs should climb into the lower 90s. For tonight, a weak cold front will work its way south across the northern half of the forecast area late tonight.
Wednesday will be warm again, with increasing cloud cover throughout the day, as thunderstorms in association with an occluding low pressure approach from the west.
It sure felt chilly yesterday after experiencing such a warm weekend! Highs yesterday only made it into the 40s for many valley locations as low pressure brought rain and snow to our region. Further north, away from the southern Idaho low pressure system, temperatures were much warmer. Zooming out across the northern hemisphere, itâs apparent that the atmosphere is currently in a spring-like blocking pattern. Strong upper level ridging exists over the Aleutian Islands in the northeast Pacific while a cold arctic airmass resides over Alaska.
709 AM EDT Tue Apr 6 2021 A stalled warm front will remain draped across western Pennsylvania through midweek, as ridge of high pressure remains over the eastern part of the state.
337 PM EDT Tue Apr 6 2021 High pressure will remain over the Southeast through midweek as a weak frontal boundary lingers overhead.
309 PM EDT Tue Apr 6 2021 High pressure remains centered across the southeastern states with a weak stationary front across the area. Another area of low pressure approaches from the west later in the week. Backdoor cold front has moved southward across the area today. Another mild day across the area on Wednesday away from the coast as the backdoor cold front washes out with heights building across the area. Generally light winds combined with rising heights should allow for temps as warm or even warmer than today across the area. In fact, am forecasting temps in the lower 80s across the interior sections as latest guidance suggests that the high pressure across New England will hold off moving southward until later Wed night. Coastal areas will be cooler on Wednesday - generally in the 60s.
Temperatures as of 11 AM CDT have warmed into the lower to middle 70s across the Mid-South with sunny skies prevalent. /issued 310 AM CDT Tue Apr 6 2021/ High pressure remains over the Southeastern United States this morning with upper ridging occurring aloft. An upper level low pressure system will move from the Rockies into the Central Plains by Wednesday. Showers and thunderstorms are expected to develop along and ahead of the cold front. The system will be occluding as the cold front begins to push into the Mid-South, pinching off the instability.
205 PM EDT Tue Apr 6 2021 High pressure through tonight. High pressure aloft will keep warm and dry weather conditions through Wednesday. Plenty of sunshine under some warm air advection will allow for max temperatures to reach the lower 80s across the lowlands, ranging into the lower 60s higher elevations Wednesday afternoon. Upper ridge will strengthen over the area on Wednesday, with very warm temperatures, and for the most part dry conditions.
The bufkit soundings from Mobridge to Aberdeen and to Watertown all show strong ll north to northeast winds bringing in this dry air. The upper ridge will break down today as the upper low advances into the Rockies.
A weak cold front moved through the region overnight bringing some gusty north winds and cooler temperatures to the region with current temperatures running about 7-12 degrees below 24 hours ago.
Temperatures will trend seasonably cooler with periods of rain from late week into the weekend. Low temps in the low 40s NE to around 50F SW will be +10-20F above climo. Upper ridging will begin to build into the region Wednesday, supplying partly to mostly sunny and unseasonably warm conditions.
Upper ridge over the region today with a dry westerly flow. Models continue to indicate an upper level trough and cold front moving through the Pacific northwest Wed and Thu.
1111 AM EDT Tue Apr 6 2021 High pressure through tonight. Leaned toward higher end of guidance envelop for high temperatures today and toward the lower end in the valleys for lows tonight. However, the low level west to northwest flow may transport enough moisture atop the mixing layer to reintroduce cloud across the north overnight tonight. Upper ridge will strengthen over the area on Wednesday, with very warm temperatures, and for the most part dry conditions.
Southerly winds will continue to gust to near 35 or 40 mph this afternoon for most locations and will remain gusty through the night in advance of an approaching upper level system and associated cold front. Some portions of northeast Oklahoma, particularly KBVO could hang on to lower clouds tomorrow morning with the affects of wrap around cloud cover on the backside of the upper low. Low clouds have spread over much of eastern Oklahoma this morning as low level moisture is on the increase ahead of an approaching cold front.
Deep ridging will prevail throughout the short term period resulting in quiet/mostly dry conditions for South FL and the local waters.