Aikyam-Lab/Synoptic-Bench huggingface dataset:
954 PM EDT Sun May 19 2024 High pressure will build in from the north tonight and persist through most of this week. Lows will range from the lower 60s inland to the upper 60s/near 70 at the beaches.
The core of an upper low pressure system will move through central Idaho on Monday. High temperatures will be slightly warmer, but still 5 to 10 degrees below normal.
621 PM CDT Sun May 19 2024 (This evening through Monday) Short wave ridging will continue to influence the region through tomorrow. Gusty south winds this afternoon will diminish after sunset, except for some of the higher terrain where winds will remain elevated overnight.
250 PM PDT Sun May 19 2024 Several areas of low pressure will affect the region this week, bringing cooler temperatures, afternoon breezes, and a 10-20% chance of afternoon showers and storms through the upcoming work week.
(Tonight) With high pressure layered across much of the region, quiet and seasonably warm conditions are expected into the overnight hrs. Current temps are predom in the 70s and lows into early Mon still look to fall mainly into the lower/mid 60s.
949 PM EDT Sun May 19 2024 High pressure and drier air will move into the area to start off the work week.
The center of an upper level low pressure system is currently located over northern Montana, with the trough extending into the western United States. This flow is expected to continue through much of this upcoming week as the upper low remains relatively stationary in the northern plains and southern Canada. A subtle cooldown will result from these northerly winds aloft, bringing temperatures nearer to season normals in the low to mid 80s.
After a warm day in the lower to mid 80s temperatures were starting to fall back into the 70s. Discussion: Upper trough continues to slowly push east and out of the area. High temps will be a few degrees above normal as high pressure strengthens across the area.
755 PM EDT Sun May 19 2024 High pressure is building into the region. Predominantly dry conditions, light winds and warmer temperatures are expected to hold into the middle of the upcoming week.
757 PM EDT Sun May 19 2024 Warming high pressure will build atop the region through the first half of the week.
Strong winds are expected Monday along with slightly cooler temperatures.
Surface analysis had high pressure centered east of our CWA that will provide a light return flow by sunrise. Together these features will hold morning lows a couple of degrees warmer than normal. Monday is expected to remain clear and dry as surface ridging continues.
746 PM EDT Sun May 19 2024 High pressure will build in from the north tonight and persist through most of this week. Mesoanalysis and radar data suggest the cold front is approaching the I-16 corridor with a narrow band of showers associated with it. Lows will range from the lower 60s inland to the upper 60s/near 70 at the beaches.
1044 PM EDT Sun May 19 2024 Warming high pressure will build atop the region through the first half of the week.
803 PM EDT Sun May 19 2024 Fair and dry weather expected early this week with warming temperatures through the week under high pressure.
751 PM EDT Sun May 19 2024 High pressure and drier air will move into the area to start off the work week.
704 PM EDT Sun May 19 2024 High pressure is building into the region. Predominantly dry conditions, light winds and warmer temperatures are expected to hold into the middle of the upcoming week.
At the surface, a dryline extends south over the eastern TX Panhandle and the TX South Plains and curves northwest back toward an area of low pressure near the Raton Mesa in SE CO. A warm front extends northeast from there across central and NE KS.
Current surface map places low across northeastern South Dakota with cold front into the southern Nebraska Panhandle. Water vapor shows upper trough over the Rockies/Great Basin with southwest flow over the forecast area. Thermal profiles show lowering of web bulb temperatures tonight, with transition to snow for the higher elevations of the Black Hills.
The advancing upper low, and associated cold front, push into Idaho tonight. This low tracks across Wyoming through Tuesday and will be the main weather driver the next couple days. The low tracks eastward Monday night into Tuesday. Current forecast has just under an inch to about an inch for the lower elevations of roughly Fremont, Natrona, and southern Johnson Counties. Tuesday will be cold day, with many places around the 50 degree mark for the high, about 20 degrees below normal.
1215 AM CDT Mon May 20 2024 (Tonight) With high pressure layered across much of the region, quiet and seasonably warm conditions are expected into the overnight hrs. Current temps are predom in the 70s and lows into early Mon still look to fall mainly into the lower/mid 60s.
1142 PM CDT Sun May 19 2024 Ridging set up overhead combined with very dry air advecting into the region (per today's 12 and 00Z RAOBs) resulted in a very warm and clear day for southeast Texas and much of Louisiana. High's topped out in the low 90s, but with sfc Tds only in the mid to upper 60s, it only felt like the mid 90s outside rather than the low 100s. For Monday through Tuesday night, a dry northwest flow aloft expected between the mid to upper level trough over the East Coast and a mid to upper level ridge over Northern Mexico/South Texas/Western Gulf of Mexico. Maximum heat index values in the lower to mid 90s expected each afternoon.
Even the freezing level is up to 14. This pattern will continue again to start the new week and even linger into Tuesday as the upper ridging refocuses over the lower MS River valley. And it looks like the lower 90s will persist all week, especially along and south of I-20.
There is a weak meso-low still in the southern fringe of the Appalachians, trapped by the high pressure building to the north, while high pressure also builds into the Southeast.
1244 AM EDT Mon May 20 2024 High pressure and drier air will move into the area to start off the work week.
Seas will generally range 3-5 ft Tuesday and fall further mid to late week as high pressure builds over the waters.
343 AM EDT Mon May 20 2024 High pressure maintains dry conditions through the first half of the work week.
(Today through Tuesday Night) Ridging will be noted the next couple of days from the Texas Gulf Coast to the southeast United States. This will result in above to well above average temperatures, and afternoon readings reaching into the lower 90s today/Tuesday in central/southern sections of the state. Otherwise, we will watch a potent storm system go from the southwest United States around the ridge toward the upper Midwest tonight/Tuesday. The system will attempt to drag a cold front toward Arkansas, with the front knocking on the door and approaching the northwest corner of the state as the period ends.
- Severe weather may still be possible into late Tuesday afternoon into the early evening hours as a weak cold front works through the area. A pair of upper lows are evident over Canada. One over the Hudson Bay region with the other over central Canada with the main trough axis extending into the northern Rockies and through northern California. Today, temperatures should remain cooler than past days with clouds in place much of the day as an EML caps the atmosphere. The primary focus for storms later tonight would be any outflow from an MCS that is forecast to work through central and northern Nebraska tonight after storms congeal into a line coming off the High Plains into this evening. Tuesday still looks like the best chance for any storms to form along the cold front by mid to late afternoon.
441 AM EDT Mon May 20 2024 High pressure will ridge across the region through early week, then build south of the area through the middle of the week.
Upper ridging remains entrenched across the Ohio and Tenn Valleys, into the Lower Miss Valley with a longwave trough noted across the Pacific Northwest into the southwest Great Basin. This ridging will remain in place for the most part tonight into Tuesday as pieces of energy rotate out of the upstream longwave trough, remaining well north and west of our region. The lack of any kind of forcing, either in the low or mid levels due to the suppressing influence of the upper ridge axis despite increasing diurnally driven instability, will result in virtually no rain chances in the short term. Concerning temperatures, stayed on the higher side of guidance today given recent trends. Afternoon heat indices on Tuesday will likely approach triple digits across some locations given the higher dewpoints in place with ambient temperatures mostly in the lower to middle 90s.
136 AM EDT Mon May 20 2024 Fair and dry weather expected early this week with warming temperatures through the week under high pressure.
Clear skies cover the region as cloudiness associated with the upper trough has shifted south into central California. North winds will spread southward through the Sacramento Valley this morning as the upper flow behind the departing trough becomes aligned with the tightening surface gradient. Enough moisture and instability may remain on the backside of the trough for an isolated shower or thunderstorm to pop along the Sierra crest south of Tahoe late today, but northwesterly steering flow will likely keep any that develop right along the crest before moving east. The trough will weaken a bit on Tuesday allowing for minor warming and lighter winds across the region.
421 AM EDT Mon May 20 2024 High pressure will ridge across the region through early week, then build south of the area through the middle of the week.
Warm and dry weather will remain across the Mid-South through Tuesday with highs in the upper 80s to lower 90s as high pressure remains over the area.
Current surface analysis shows low pressure just east of the Black Hills, with warm front extending east across southern SD and a cold front trailing to the southwest across WY. Latest analysis shows moderate buoyancy ahead of the low and to the south of the warm front across locations mostly east of the Black Hills at this time, with MLCAPE values to around 1000 j/kg to the southeast of the Black Hills. After a brief period of quiet weather later tonight into Monday morning, showery weather develops for Monday afternoon into Tuesday as a larger trough moves across the western US and active southwesterly flow develops from the Rockies into the Plains. There could even be a little bit of snow across the highest elevations of the Black Hills later Monday night into Tuesday morning.
- A cold front will move through midday Tuesday bringing another round of strong to severe storms, with large hail, damaging winds, and a tornado or two also possible.
Panning out from the Keys, a trough is extending across the western North Atlantic, dragging a frontal boundary in its wake.
311 AM EDT Mon May 20 2024 High pressure is building into the region. Predominantly dry conditions, light winds and warmer temperatures are expected to hold into the middle of the upcoming week.
Temperatures are forecast to dip below seasonal averages by late week and into the upcoming weekend as an upper level trough impacts the region. A high pressure system is located 1,000 miles west of the Bay Area and a 500 mb low pressure trough is over the western states. Thus, expecting highs to range from the lower 60's to near 70 degrees at the coast with mid 70's to lower 80's across the interior.
330 AM EDT Mon May 20 2024 - Marginal Risk for Severe Thunderstorms Today - Warm and Humid Tuesday - Severe Weather Risk Tuesday Night - Dry and Pleasant Late Week Period - Marginal Risk for Severe Thunderstorms Today A fairly complex mesoscale pattern will evolve across our area today as a warm front just south of our area early this morning moves slowly north. However this complex of rain and convection may inhibit the warm front from moving much further north then perhaps the I-96 corridor. Localized large hail is also possible looking at fcst soundings and we also can't rule out potential for an isolated weak spinup in the vicinity of the warm front where enhanced updraft helicity is expected.
Lows will also continue to be warm, dropping only into the low to mid 70s.
Upper ridge to move slowly across the mid state through Monday, with additional ridging moving in on Tuesday.
144 AM MST Mon May 20 2024 A weak trough will bring several degrees of cooling along with gusty afternoon winds this week. A weak low is shearing into the base of a broader mean trough position that is developing over the Great Basin and intermountain west. With our area sandwiched between this and a strong ridge across Mexico we'll see breezy to locally wind conditions developing across SE AZ by late morning and early afternoon.
208 AM EDT Mon May 20 2024 Warming high pressure will build atop the region through the first half of the week.
215 AM EDT Mon May 20 2024 A high pressure system will provide hot and dry weather into midweek.
359 AM EDT Mon May 20 2024 High pressure will extend across and offshore the Middle Atlantic through Tuesday. A mid-level, 700-500 mb anticyclone centered over the mid-South in 00Z RAOB data will drift ewd and become situated over the Carolinas and srn Middle Atlantic by tonight. A weak mid-level trough will move across the cntl Appalachians and Middle Atlantic through 12Z Wed, while ridging will otherwise extend across the Southeast.
A ridge of high pressure is expected to weaken across the Lower Mississippi Valley by mid- week.
Strong winds are expected today along with slightly cooler temperatures. A closed-low off the southern California coast will ejects off the Pacific today, while at the same time a trough moves into the Great Basin. The dry air mass combined with gusty winds will lead to areas of critical fire weather conditions, particularly across the lower elevations north of the Mogollon Rim. The greatest chances for any showers look to mainly by from the eastern Mogollon Rim into the White Mountains, and maybe over the higher terrain near the AZ/UT border as well.
244 AM EDT Mon May 20 2024 A high pressure system will provide hot and mostly dry weather into midweek.
(Today) Tranquil weather across the Tennessee Valley early this morning, with high pressure established across the Deep South.
1118 PM EDT Sun May 19 2024 High pressure is building into the region. Predominantly dry conditions, light winds and warmer temperatures are expected to hold into the middle of the upcoming week.
On Tuesday another chance for severe weather is expected as a mid level trough and associated cold front move across the central Plains.
(Today through Tuesday) The upper level flow this morning is zonal to slightly ridging. The low level flow is from the southeast. The upper ridge will strengthen today as it shifts toward the east. The low level flow will continue from the southeast and clouds will get an earlier start tonight. This will mean lows Tuesday morning will be a few degrees warmer than today.
141 AM EDT Mon May 20 2024 High pressure will build in from the north tonight and persist through most of this week.
305 AM EDT Mon May 20 2024 After mostly clear skies and valley fog tonight, mostly sunny skies and warmer temperatures are expected on Monday.
With high pressure in place and upper level ridging, skies are mostly clear with a few high clouds streaming in over the Southern Tier. Given the capping as well as drier air mixing into the boundary layer with heating, enough instability for showers or thunderstorms will be unlikely for most of the region outside of the higher terrain of Steuben county. Tonight is another mostly clear night but with the upper level ridge axis moving east of the region, southerly return flow strengthens. High pressure will move off the east coast Tuesday night.
Strong winds are expected Monday along with slightly cooler temperatures. The low pressure system bringing this chance of precipitation should move through the area quickly, minimizing chances for wetting rains. Tightening gradients in advance of a trough approaching the west coast are producing increased southwest winds gusting 25-35 mph. Monday - the trough will move eastward across the region through the day. Tuesday - the low moves east of the state Tuesday, resulting in lighter winds. Morning lows will be a bit below normal with the decreasing wind and dry air mass, near to a bit below freezing for the usual high country cold spots.
1254 AM CDT Mon May 20 2024 (This evening through Monday) Short wave ridging will continue to influence the region through tomorrow. Gusty south winds this afternoon will diminish after sunset, except for some of the higher terrain where winds will remain elevated overnight.
(Today through Tuesday) 500 mb high pressure will continue to build northeast out of Mexico and increasingly be even more dominant over the BRO CWFA during the period.
An upper level trough moving across our region will bring slightly below normal temperatures and continued gusty southwest winds today followed by moderate north winds tonight and Tuesday. A mean trough will hold over the western states this week into the holiday weekend resulting in near normal temperatures with elevated afternoon winds each day.
Have opted to warm temperatures a couple degrees above NBM given that the 850mb temperatures will be slightly less than a degree warmer than yesterday. A cold front will move into the Panhandles Tuesday night and potentially clear the CWA by the very end of this short-term period.
1051 PM CDT Sun May 19 2024 Ridging set up overhead combined with very dry air advecting into the region (per today's 12 and 00Z RAOBs) resulted in a very warm and clear day for southeast Texas and much of Louisiana. High's topped out in the low 90s, but with sfc Tds only in the mid to upper 60s, it only felt like the mid 90s outside rather than the low 100s. For Monday through Tuesday night, a dry northwest flow aloft expected between the mid to upper level trough over the East Coast and a mid to upper level ridge over Northern Mexico/South Texas/Western Gulf of Mexico. Maximum heat index values in the lower to mid 90s expected each afternoon.
256 AM PDT Mon May 20 2024 Several upper troughs driving across the region this week will bring cooler temperatures, afternoon breezes, and a 10-20% chance of afternoon showers and storms mainly across the Sierra. This Week's Headlines: * The week starts off cooler with below average temperatures, rebounds by mid-week, drops temporarily, then once again trends warmer late this week into the Memorial day weekend.
619 AM CDT Mon May 20 2024 (Today through Tuesday) 500 mb high pressure will continue to build northeast out of Mexico and increasingly be even more dominant over the BRO CWFA during the period.
640 AM CDT Mon May 20 2024 (Today through Tuesday Night) Ridging will be noted the next couple of days from the Texas Gulf Coast to the southeast United States. This will result in above to well above average temperatures, and afternoon readings reaching into the lower 90s today/Tuesday in central/southern sections of the state. Otherwise, we will watch a potent storm system go from the southwest United States around the ridge toward the upper Midwest tonight/Tuesday. The system will attempt to drag a cold front toward Arkansas, with the front knocking on the door and approaching the northwest corner of the state as the period ends.
555 AM EDT Mon May 20 2024 A high pressure system will provide hot and mostly dry weather into midweek.
528 AM CDT Mon May 20 2024 Warm and dry weather will remain across the Mid-South through Tuesday with highs in the upper 80s to lower 90s as high pressure remains over the area.
WEATHER PATTERN OVERVIEW: Upper trof will be over the western states through the end of the week.
This flow pattern will keep temperatures cooler than average for this time of year.
Temperatures are forecast to dip below seasonal averages by late week and into the upcoming weekend as an upper level trough impacts the region. A few locations across the North and East Bays may see highs reach the low 80s.
543 AM CDT Mon May 20 2024 (Today) Tranquil weather across the Tennessee Valley early this morning, with high pressure established across the Deep South.
1042 AM EDT Mon May 20 2024 Warm high pressure will persist across the region through the middle of the week.
(Now through Tuesday) Dry conditions will persist through Tuesday as deep ridging remains across Mississippi, Alabama and the western Florida panhandle.
Water vapor/RAP imagery indicate mean ridging at the sfc & aloft building across the Gulf Coast states through the Appalachians into the. The ridge is expected to amplify throughout the day, bringing seasonably very warm temperatures (upper 80s/lower 90s), sunny skies, and dry conditions to the region.
752 AM EDT Mon May 20 2024 - Marginal Risk for Severe Thunderstorms Today - Warm and Humid Tuesday - Severe Weather Risk Tuesday Night - Dry and Pleasant Late Week Period - Marginal Risk for Severe Thunderstorms Today A fairly complex mesoscale pattern will evolve across our area today as a warm front just south of our area early this morning moves slowly north. However this complex of rain and convection may inhibit the warm front from moving much further north then perhaps the I-96 corridor. Localized large hail is also possible looking at fcst soundings and we also can't rule out potential for an isolated weak spinup in the vicinity of the warm front where enhanced updraft helicity is expected.
An upper level trof progresses across the region. A weak upper level ridge enters the region, Tuesday, and low elevation high temperatures are forecast to range around normal, with highs ranging from the upper 50s to the mid to upper 60s.
A weak upper level ridge will produce warmer and drier conditions today.
The ridge is expected to amplify throughout the day, bringing seasonably very warm temperatures (upper 80s/lower 90s), sunny skies, and dry conditions to the region.
222 AM PDT Mon May 20 2024 A large-scale trough over western North America will persist through this week. A closed upper level low will move across the region on Monday, which will bring the coolest and windiest conditions overall. A weak trough of low pressure to the west will get picked up by a larger jet stream-driven trough to the north this morning and push through SoCal today. As the trough exits east, the trend will be to decrease the onshore flow and tamp down the marine layer a little.
743 AM EDT Mon May 20 2024 High pressure will extend across and offshore the Middle Atlantic through Tuesday. A mid-level, 700-500 mb anticyclone centered over the mid-South in 00Z RAOB data will drift ewd and become situated over the Carolinas and srn Middle Atlantic by tonight. A weak mid-level trough will move across the cntl Appalachians and Middle Atlantic through 12Z Wed, while ridging will otherwise extend across the Southeast.
912 AM EDT Mon May 20 2024 High pressure maintains dry conditions through the first half of the work week.
654 AM EDT Mon May 20 2024 Warm high pressure will persist across the region through the middle of the week.
634 AM EDT Mon May 20 2024 High pressure maintains dry conditions through the first half of the work week.
636 AM CDT Mon May 20 2024 (Today through Tuesday) The upper level flow this morning is zonal to slightly ridging. The low level flow is from the southeast. The upper ridge will strengthen today as it shifts toward the east. The low level flow will continue from the southeast and clouds will get an earlier start tonight. This will mean lows Tuesday morning will be a few degrees warmer than today.
655 AM EDT Mon May 20 2024 A high pressure system will provide hot and mostly dry weather into midweek.
Temperatures continue to trend cooler today, with scattered showers and isolated thunderstorms over portions of northern and eastern Nevada. Trough energy continues to dig south through the Pacific NW and into Nevada bringing cooler temperatures and gusty northerly winds to the entire region, with scattered showers and isolated thunderstorms to portions of northern and eastern NV (mainly in Elko and White Pine counties) through this evening. Temperatures this afternoon will be 5-10 degrees cooler than yesterday for most of the region, with highs generally in the 50s to 60s.