Aikyam-Lab/Synoptic-Bench huggingface dataset:
Patchy frost is possible across the low-lying areas of the eastern Ozarks tonight into Saturday morning.
1225 PM CDT Fri Apr 11 2025 - Near freezing lows and frost possible for some early Saturday morning.
Big bubble no trouble for pretty much the entirety of the forecast as high pressure over the central US slowly drifts eastward into the southeast.
The large upper level trough has shifted far enough to the east to end the clouds dropping into our CWA from the north and the isolated light showers that developed over the northeast have dissipated. Global guidance continues to highlight a longwave upper level trough pattern continuing its eastward push towards the Atlantic coast. At the same time, a dry cold front over the Lower Tennessee Valley Region will track southward across our CWA later this evening. Expect overnight lows to drop into the low/mid 40s areawide.
For tonight, moderate to strong radiational cooling amid clear skies and light winds will allow for overnight lows to dip into the upper 50s over parts of the Northern Ranchlands to lower 60s along the Rio Grande Valley (just slightly cooler than normal levels). For Saturday night, slight winds out of the southeast will result in slightly warmer and humid conditions. That said, overnight lows are expected to be in the lower to mid 60s across Deep South Texas.
957 PM EDT Fri Apr 11 2025 - Major flooding continues on the lower White and lower East Fork White Rivers. - Significant river flooding continuing through at least the next 1 to 2 weeks in some spots on the lower White and lower Wabash. - Clear and Cold tonight with near to slightly below freezing lows.
631 PM CDT Fri Apr 11 2025 (This evening through Saturday Night) The upper level trough responsible for yesterday evening's frontal passage reaches the extent of its amplification along an axis running the length of the Appalachians tonight. From there, the trough lifts northeast towards New England, while a closed low develops as it moves off shore. This departure clears the way for the ridging which has remained over the Rocky Mountains for much of this week to press its own eastward advance, resulting in the ArkLaTex resuming its warming trend this weekend while skies remain mostly clear and weather conditions remain quiet. In truth, yesterday's surface boundary was only a cold front in the strictly academic sense, and today's high temperatures may well result in understandable questioning of whether such a front interacted with our area at all.
602 PM CDT Fri Apr 11 2025 (This evening through Saturday Night) Fair weather continues with a slightly warmer day and plenty of sunshine. Southerly surface winds will resume in the afternoon as the high shifts to our east. Highs will generally be in the low to mid 80s.
(This afternoon through Saturday) 500mb analysis shows an upper low across southwestern VA with a longwave through extending back towards the Lower Mississippi River Valley. The low center and trough will push eastward and offshore the east coast tonight. High pressure will build in from the northwest overnight and into tomorrow. The mid level low pressure center and trough are providing just enough lift for a widespread cu field and the showers.
754 PM EDT Fri Apr 11 2025 High pressure remains in place tonight.
323 PM MDT Fri Apr 11 2025 KEY MESSAGES: * A change in the weather pattern will bring potential for accumulating rain this weekend and cooler temperatures.
Today-Tonight: Modest low-level southerly return flow will prevail today, as an upper level ridge over the Rockies flattens and extends eastward over the Central Plains and the MSLP-850 mb height gradient reorients/tightens in response to modest surface pressure falls / lee trough development in Colorado. Expect dry conditions and warmer temps with highs in the mid- upper 70's. Sat-Sat night: Expect dry conditions and further warming as the upper level ridge departs (progressing east toward the MS River Valley), broad cyclonic flow aloft envelopes the western CONUS and low-level southerly flow persists. on the eastern periphery of a broad lee trough/cyclone that will slowly migrate eastward from CO into far western KS during the aft-eve.
631 PM EDT Fri Apr 11 2025 High pressure remains in place tonight.
638 PM CDT Fri Apr 11 2025 - Warm/dry weather continues on Saturday with high temperatures in the low 60s inland from Lake Michigan.
The cold front is currently extends from Ponte Vedra to just northwest of Ocala. Dry and cooler air behind the front will clear the skies through the predawn hours and lower temperatures into the upper 40s in SE GA and low/mid 50s in NE FL by daybreak Saturday. Scattered showers and thunderstorms will develop late this afternoon and push into the waters through the evening along a cold front.
633 PM EDT Fri Apr 11 2025 - Major flooding continues on the lower White and lower East Fork White Rivers. - Significant river flooding continuing through at least the next 1 to 2 weeks in some spots on the lower White and lower Wabash. - Clear and Cold tonight with near to slightly below freezing lows.
759 PM EDT Fri Apr 11 2025 A cold front extending from Panama City to St Simons Island (as of 2 pm) will continue to trek southeastward into northeast flow over the next few hours. Despite somewhat limited deep moisture, instability will build amid steep mid level lapse rates and reach levels sufficient to support convective development beneath the deep and pivoting upper trough. Dry and cooler air behind the front will clear the skies through the predawn hours and lower temperatures into the upper 40s in SE GA and low/mid 50s in NE FL by daybreak Saturday. High pressure conditions will settle in over the forecast area this weekend bringing dry weather conditions, mostly clear skies, and initially breezy northwesterly winds.
731 PM EDT Fri Apr 11 2025 (Through Saturday) Following frontal passage today, temperatures will dip overnight to the low 50s/high 40s across the region.
543 PM MDT Fri Apr 11 2025 KEY MESSAGES: * A change in the weather pattern will bring potential for accumulating rain this weekend and cooler temperatures.
636 PM CDT Fri Apr 11 2025 - Near freezing lows and frost possible for some early Saturday morning.
628 PM CDT Fri Apr 11 2025 Big bubble no trouble for pretty much the entirety of the forecast as high pressure over the central US slowly drifts eastward into the southeast.
723 PM EDT Fri Apr 11 2025 High pressure will lead to dry conditions and moderating temperatures through the weekend.
The broken line of storms associated with the incoming cold front is pushing through the Nature Coast counties and adjacent Gulf waters slightly ahead of schedule early this evening.
851 PM EDT Fri Apr 11 2025 High pressure will lead to dry conditions and moderating temperatures through the weekend.
A weakening cold front currently moving through Central Florida will gradually push southeastward and move across South Florida during the overnight hours into early Saturday morning. Behind the front, winds will gradually shift and become northwesterly which will usher in a much drier air mass to South Florida along with cooler temperatures. Low temperatures tonight will range from the upper 50s across interior portions of Southwest Florida to the lower to mid 60s along the coasts. Once the front passes, cooler and drier air will advect into the area with a gusty northwesterly wind flow. Temperatures will reach the lower 80s on Saturday afternoon.
Breezy conditions with gusts up to 30+ mph still possible throughout the Snake River Plain into the Lower Treasure Valley during the afternoon to evening period Saturday.
Early this morning, weak embedded vort maxes are observed entering the western high plains amid the upper ridging towards the northern plains. On Sunday in terms of highs, deterministic guidance (including short term models) continues to trend a few degrees cooler than the NBM with the frontal boundary location tracking faster, overall limiting the complete erosion of the capping layer and subsequent max temps in the upper 80s/low 90s.
308 AM EDT Sat Apr 12 2025 - Major flooding continues on the lower White and lower East Fork White Rivers. - Significant river flooding continuing through at least the next 1 to 2 weeks in some spots on the lower White and lower Wabash. - Clear and Cold tonight with near to slightly below freezing lows. - Brief warming trend begins on Sunday, but cooler air returns mid-week.
This afternoon, the pattern over the CONUS features an amplified mid- level trough over the eastern half of the country and a ridge over the Southwest and Rockies. The stronger southerly flow will quickly advect warmer temperatures and moisture into the area, so minimum RH values look to range from 25 to 35 percent as temperatures warm well into the 70s in eastern KS to near 80 degrees in more central areas of KS. Have maintained highs in the low to mid 80s for much of the area, but just a touch cooler in north-central KS.
(Today through Sunday) Surface ridging shifts over the Gulf today while lower pressure deepens over the Pan Handle. Farther east we'll stay mainly in the 80s with the assistance of the cooler Gulf waters.
114 AM EDT Sat Apr 12 2025 A weakening cold front currently moving through Central Florida will gradually push southeastward and move across South Florida during the overnight hours into early Saturday morning. Behind the front, winds will gradually shift and become northwesterly which will usher in a much drier air mass to South Florida along with cooler temperatures. Low temperatures tonight will range from the upper 50s across interior portions of Southwest Florida to the lower to mid 60s along the coasts. Once the front passes, cooler and drier air will advect into the area with a gusty northwesterly wind flow. Temperatures will reach the lower 80s on Saturday afternoon.
(Saturday through Sunday) Calm winds and clear skies are allowing for regional temperatures to fall into the low 50's and upper 40's this morning. Given the return to marginal southerly winds, and dew point temperatures trending on the drier side for at least one more afternoon, elected to go about 2-3 deg F warmer for this afternoon when compared to NBM. Warming trend only continues further into Sunday as a strong southerly Gulf breeze advects not only warmer air to the region but also supports sustained 10-15 mph winds. As a result, expect for highs to easily reach the mid and upper 80's area wide as the upper ridge axis settles directly over the ArkLaTex Sunday afternoon.
However, a secondary cold front will bring mostly cloudy conditions to most areas near and east of the I-65 corridor the rest of this evening into the overnight hours. This will help keep temperatures warmer overnight, but they should fall into the lower 40s behind the front around daybreak as winds become lighter and strong cold air advection occurs behind the front.
Updated at 257 AM CDT Sat Apr 12 2025 - Hot and windy conditions this weekend before cold front arrives on Sunday. A lee-side trough is currently developing in response to mid-level height falls associated with the approach of the upper jet maxima streaming towards the northern plains. This trough deepens and the resulting tightening of the pressure gradient leads to breezy south winds at 20 to 30 mph with gusts to 35 to 40 mph.
- A cold front will bring cooler temperatures early in the week before the heat returns midweek.
Dry under increasing high pressure. Discussion: We will begin today on the westerly side of the upper trough. Low pressure off of the Delmarva will continue its trek to the New England coast. Although we will be a touch warmer in some places today compared to yesterday, it'll still be a rather cool day compared to mid- April standards.
235 AM MDT Sat Apr 12 2025 KEY MESSAGES: * A change in the weather pattern will bring potential for accumulating rain today and Sunday with cooler temperatures.
- Limited fire weather concerns in northeast Oklahoma on Sunday, with gusty southerly winds and well above normal temperatures ahead of a cold front. A much milder night is expected tonight as south winds remain gusty thru the night with a tight gradient persisting over the area between high pressure to our east and lee side troughing to our west. Gusty winds to near advisory levels are forecast across NE OK into NW AR, as well as in the higher terrain areas.
The latest water vapor imagery is showing a large upper ridge extending from the southwest US into the Upper Midwest early this morning. The HREF moves the ridge across Missouri and Illinois tonight before turning the upper flow zonal during the day tomorrow. At the surface, high pressure was centered over central Illinois early this morning which coupled with the clear sky will promote areas of frost over the eastern CWA along with some locally dense river fog. This high will move off to the east today causing winds to turn out of the south. With mixing up to 800- 850mb, highs will range from the lower 70s over south central Illinois to the mid 80s over central Missouri.
Quiet weather conditions are expected overnight with Saturday morning low temperatures in the lower to middle 40s most areas, with some upper 30s for the typically cooler locations near and north of the 20/22 corridor. A high pressure pattern on Saturday will promote fair-weather conditions, featuring sunshine and high temperatures in the 60s.
347 AM EDT Sat Apr 12 2025 Low pressure will track up the east coast today bringing a mix of rain and snow to the area.
Windy conditions will develop this weekend as high pressure slowly moves east of the state. The high pressure over Arizona that has bringing the record high temperatures will begin to move east as a trough of low pressure moves into the PacNW tonight. The trough will bring increasing winds Saturday combined with very low humidity. High pressure is peaking over the region today before weakening slightly and shifting southeast as a trough moves by to our north this weekend. Though it will be just a couple degrees cooler on Saturday, this will still be in record territory for places like Prescott and Winslow and near- record at many other locations. The other story as the trough moves by to our north will be elevated southwest winds on Saturday and Sunday afternoons, along with very low humidity in the 5-10% range.
(Today through Sunday) The cold front will pass through the area early this morning with limited showers possible as a lack of available moisture will not support much shower development.
331 AM CDT Sat Apr 12 2025 - Breezy day today with warmer temperatures nearing 70 degrees.
(This evening through Saturday) Currently, an upper level ridge is centered over the southwest with an upper level trough over the eastern US. The ridge is expected to move to the east while flattening to zonal flow over the next couple days.
- A cold front moves through tomorrow bringing light precipitation chances to the northern and central Divide mountains. By daybreak, an upper level trough will have moved ashore into WA/OR. Out ahead of this trough, broad southwesterly flow will setup and as the gradient tightens winds will increase. Aloft, a 100+ kt jet streak will be supporting the trough and with deeper mixing, some of these winds will also likely mix to the surface. Outside of the winds, look for clouds to increase as the trough continues approaching from the west. The upper level trough and associated cold front will start moving across the area late tonight and through the day Sunday.
Winds will become southerly again this afternoon as high pressure shifts east.
1205 AM EDT Sat Apr 12 2025 - Major flooding continues on the lower White and lower East Fork White Rivers. - Significant river flooding continuing through at least the next 1 to 2 weeks in some spots on the lower White and lower Wabash. - Clear and Cold tonight with near to slightly below freezing lows. - Brief warming trend begins on Sunday, but cooler air returns mid-week.
451 AM EDT Sat Apr 12 2025 High pressure will lead to dry conditions and moderating temperatures through the weekend.
402 AM EDT Sat Apr 12 2025 Low pressure will move slowly north through tonight. The low will then track northeast through the Maritimes Sunday and Sunday night.
129 AM EDT Sat Apr 12 2025 A weak cold front will push offshore tonight.
1139 PM CDT Fri Apr 11 2025 - Fire weather concerns are critical on Saturday and elevated for Sunday - Temperatures warming to near 100 degrees for areas along the Colorado border on Saturday - Minor chances of rain (~20%) in northern Kansas Sunday night and across southwest Kansas midweek Current RAP mesoanalysis shows significant ridging building and moving over from off of the Rockies today. Sunday will see multiple cold fronts that will result in a cooler day than on Saturday. With the cold fronts, multiple wind shifts are expected throughout the day with winds ending up coming out of the north.
140 AM EDT Sat Apr 12 2025 High pressure will lead to dry conditions and moderating temperatures through the weekend.
Highs today in the low to mid-70s, with even the coastal locations remaining warm as the northwest flow inhibits the sea breeze, which will make some inroads along the Emerald Coast by evening. For tonight, excellent longwave/radiational cooling conditions will make for below average lows in the lower to middle 40s (warmer urban centers), which is closer to the 10th percentile of the guidance.
High pressure resides over the Gulf of America with broad, mid-level ridging aloft.
(Through Saturday) Following frontal passage today, temperatures will dip overnight to the low 50s/high 40s across the region. (Saturday night through Sunday night) High pressure will build at the surface and aloft through the day Sunday. Sunday night's temperatures will be slightly warmer with the overnight lows in the upper 40s to low 50s.
1150 PM CDT Fri Apr 11 2025 (This evening through Saturday Night) Fair weather continues with a slightly warmer day and plenty of sunshine. Southerly surface winds will resume in the afternoon as the high shifts to our east. Highs will generally be in the low to mid 80s.
1236 AM CDT Sat Apr 12 2025 Updated aviation portion for 06Z TAF issuance - Warm/dry weather continues on Saturday with high temperatures in the low 60s inland from Lake Michigan.
Temperatures have cooled into the low to mid 50s across the board with low clouds moving back in along the coastline. (This evening through Saturday) The upper level trough continues to move through the Pacific Northwest, which will continue to lower temperatures going into Saturday. Although there will be a gradual cool down from the surface cold front, temperatures will still remain slightly above seasonal temperatures. After the low clouds clear in the morning, expect a beautiful clear sky Saturday with the occasional high clouds funneling through the area.
1053 PM CDT Fri Apr 11 2025 Updated at 1050 PM CDT Fri Apr 11 2025 - Warm temperatures expected this weekend before cold front arrives on Sunday. Bunker (Saturday through Sunday night) Mid-level ridging will build into the area this weekend. Lee troughing along the Rockies will foster a return to southerly surface winds across the southern Plains.
- Unseasonably warm temperatures for both Saturday and Sunday with a cooler temps for the start of the work week. Currently, there is an upper level ridge over the Great Plains traversing east with a trough over eastern CONUS, keeping northwesterly flow until Saturday night. At the surface, high pressure extends from the upper Mississippi Valley to the Southern Plains. High temperatures rising into the upper 80s and low 90s Sunday afternoon will be supported by a fairly stout mid-level thermal ridge and compressional warming ahead of the frontal boundary.
1244 AM CDT Sat Apr 12 2025 The large upper level trough has shifted far enough to the east to end the clouds dropping into our CWA from the north and the isolated light showers that developed over the northeast have dissipated. Global guidance continues to highlight a longwave upper level trough pattern continuing its eastward push towards the Atlantic coast. At the same time, a dry cold front over the Lower Tennessee Valley Region will track southward across our CWA later this evening. Expect overnight lows to drop into the low/mid 40s areawide.
1137 PM CDT Fri Apr 11 2025 Big bubble no trouble for pretty much the entirety of the forecast as high pressure over the central US slowly drifts eastward into the southeast.
(Today through Sunday night) The main axis of a low amplitude H500 ridge will move east across the High Plains and east through the central Plains throughout the day today.
- A cold front moves through on Sunday bringing light precipitation chances to the northern and central Divide mountains. Locally, the axis of an upper-level ridge remains overhead leading to seasonably hot temperatures and light winds. This will change tomorrow as an upper-level trough off the west coast moves into the Pacific Northwest tonight and tomorrow. It will flatten the ridge and increase the pressure gradient leading to widespread wind gusts of 25 to 35 mph tomorrow afternoon. These winds will pair with the continued warm and dry conditions under what is left of the ridge creating critical fire weather conditions where fuels are deemed critical. The aforementioned upper-level trough and its attendant cold front will move through during the day Sunday.
However, some patches of low clouds remain across the extreme N and E beneath a slowly departing mid and upper level trough. Daytime highs today will range from the mid 50s in the NE mountains to the lower 70s in the extreme SE (5 to 10 degrees below normal).
949 AM EDT Sat Apr 12 2025 High pressure will continue across the CWA today. However, some patches of low clouds remain across the extreme N and E beneath a slowly departing mid and upper level trough. Daytime highs today will range from the mid 50s in the NE mountains to the lower 70s in the extreme SE (5 to 10 degrees below normal).
Windy conditions will develop this weekend as high pressure slowly moves east of the state. High pressure will shift eastward today and Sunday as a trough approaches from the west.
611 AM CDT Sat Apr 12 2025 Updated at 546 AM CDT Sat Apr 12 2025 - Hot and windy conditions this weekend before cold front arrives on Sunday. A lee-side trough is currently developing in response to mid-level height falls associated with the approach of the upper jet maxima streaming towards the northern plains. This trough deepens and the resulting tightening of the pressure gradient leads to breezy south winds at 20 to 30 mph with gusts to 35 to 40 mph.
1004 AM EDT Sat Apr 12 2025 High pressure will usher in dry and slightly cool air for the weekend.
- Windy and turning much cooler late tonight through Sunday with a period of wet snow affecting portions of north-central MT early Sunday morning.
A cold front has recently passed through the Florida Keys with very little fanfare. There is a line of showers accompanying this front but it jumped the Lower Keys as it passed through. Temperatures are in the mid 70s with dew points very comfortably in the lower to mid 60s. Gentle to moderate breezes will freshen this afternoon in the wake of a cold front. High pressure will build in and slide across the Southeast U.
629 AM CDT Sat Apr 12 2025 (Saturday through Sunday) Calm winds and clear skies are allowing for regional temperatures to fall into the low 50's and upper 40's this morning. Given the return to marginal southerly winds, and dew point temperatures trending on the drier side for at least one more afternoon, elected to go about 2-3 deg F warmer for this afternoon when compared to NBM. Warming trend only continues further into Sunday as a strong southerly Gulf breeze advects not only warmer air to the region but also supports sustained 10-15 mph winds. As a result, expect for highs to easily reach the mid and upper 80's area wide as the upper ridge axis settles directly over the ArkLaTex Sunday afternoon.
549 AM EDT Sat Apr 12 2025 Low pressure will track up the east coast today bringing a mix of rain and snow to the area.
Reinforcing cold fronts will keep drier air locked in for much of the period.