Aikyam-Lab/Synoptic-Bench huggingface dataset:
During that time frame is when probability at terminals will be the highest for any thunderstorm activity and have placed tempo groups to cover that. A short wave will move out of the Southern Plains/Red River valley across the Lower Mississippi Valley that will push a surface frontal boundary into the forecast area late this afternoon and evening. Also, due to the high moisture content and expected relative slow motion of the storms, some locally heavy rainfall may also occur.
249 PM EDT Thu Jun 2 2022 Current observations indicate that the cold front has cleared the CWA, with all leftover shower activity diminished and any lingering clouds pushing south and east out of the area into the evening. Dew points will mirror this decreasing trend as high pressure builds across the area, advecting drier air in. Ridging continues to build into Indiana from the Central Plains, with a persistent dry column keeping skies clear and temperatures in the mid to upper 70s. Flow will be primarily zonal for the beginning of the forecast period, before eventually shifting to northwesterly flow as the ridge strengthens. Subsidence persists into Friday night as high pressure moves directly over the CWA. Clear skies, temperatures in the low 50s, and dry air will stem from this, marking a pleasant start to the weekend.
A large upper low will continue to hang out in the Gulf of Alaska for the foreseeable future.
311 PM CDT Thu Jun 2 2022 Broad upper trough stretches from Ontario down through the Great Lakes region and into the Ohio Valley. Right now current indications are that the TX/OK Panhandles along with western OK will have the higher storm chances tonight into Fri morning.
Temperatures peaking in the lower 70s with much lower dewpoints compared to yesterday (40s to low/mid 50s) will allow for a much more comfortable feel to the air as cloud cover eventually rapidly diminishes as subsidence fully takes hold with the arrival of sunset.
Lows tonight will be 5-10 degrees cooler than normal for early June, but notably warmer than this morning. Highs will hit a zenith in the low 80s for the bulk of the area on a Friday afternoon. It'll be a bit cooler in the northern tier of counties as a stationary front dips in from the north.
221 PM CDT Thu Jun 2 2022 High pressure is currently centered over western Kansas this afternoon with north to northwesterly winds of 10 to 15 MPH with gusts up to 25 MPH. Discussion: Gusty northwest winds will quickly diminish this evening as temperatures cool and the atmosphere decouples with high pressure passing to our south.
1223 PM CDT Thu Jun 2 2022 (The rest of today ) Mid level low pressure in the Arklatex region will continue to slide east southeast this morning.
1155 AM MDT Thu Jun 2 2022 Quasi-zonal flow is in place over the region with a weak ridge of high pressure just to our west. With the ridge approaching warm advection continues so highs could be 5 degrees warmer than yesterday especially in the lower deserts. Tomorrow the ridge passes over the region, but maintains a similar pressure gradient in the process. This will result in warmer temps, deeper mixing and drier surface RH. Midlevel moisture could support an afternoon shower or storm in the higher terrain.
As the low pressure continues to move off to the east, the pressure gradient will begin to diminish over the evening hours. In addition, as high pressure settles in over the area, clearing skies and weakening winds will allow for cooling temps and potential fog and frost overnight tonight. Quiet weather will persist tomorrow with warmer highs in the upper 60s. Large scale pattern dominated by an upper low near Hudson Bay slowly transitions to more of a westerly zonal pattern in the Northern Plains, though broader troughing keeps lower heights in place aloft.
Mixing slightly warmer/drier than previously expected has caused humidity levels to drop into the teens and 20s, resulting in enhanced fire danger for any locations with dry vegetation. It'll be difficult to get a few hundredths if any rain during the day as soundings continue to suggest that the lower levels will have difficult saturating with weak drier southerly or easterly flow. Regardless, expect cloudiness to make for a slightly cooler day Friday.
A ridge of high pressure will build toward the region on Friday, and bring dry weather. Cooler and blustery conditions are anticipated, with west-northwest winds gusting to 25 to 30 mph.
225 PM CDT Thu Jun 2 2022 Mid/upper-level ridging continues to build into the region with a compact vorticity lobe detected on water vapor imagery over Las Vegas, Nevada. Dense, low-level overcast will persist into the overnight hours as winds remain out of the east and southeast from the departing surface anticyclone, resulting in a mild and damp night area-wide with lows in the upper 50s/lower 60s.
The big weather concern continues to be with an area of low pressure east of the Yucatan Peninsula. The NHC currently has a 90 percent chance of tropical cyclone development in 48 hours and 5 days. There is still a lot of uncertainty if and when this low may become a tropical cyclone as well as the actual track and intensity as it tracks northeast toward the Florida peninsula.
108 PM EDT Thu Jun 2 2022 High pressure will build into the region this afternoon through Friday. This will lead to drier and cooler conditions for the end of the work week.
249 PM MDT Thu Jun 2 2022 The short term period will be dominated by a progressive ridge which will slowly move east across the forecast area on Friday. As the ridge moves east across the area, some high cloudiness can be expected through tomorrow. On Friday, deep mixing will combine with some residual moisture advecting from eastern New Mexico to generate more robust afternoon cumulus development with a few showers possible, especially over the higher terrain.
Dry air in the low levels will battle some of this shower activity. Lows in the lower 50s are expected. Highs around 70 or in the lower 70s are expected, with no lake breeze and sunny skies. High pressure moving through Friday night should bring continued quiet weather, with light winds allowing for cool lows in the upper 40s to lower 50s.
The high pressure ridge shifts east with zonal onshore flow setting up for the weekend with temperatures decreasing to around seasonal readings. Another warm one on tap today as high pressure keeps us mostly clear and calm. Models are advertising onshore flow increasing on Friday as a trough of low pressure will push through the district and bring a gradual, and unfortunately, short lived cool down for us this weekend. Ensembles are hitting the extended pretty hard with a major ridge of high pressure building in over us. The good thing will be that under the ridge, winds will be primarily terrain driven and diurnal in the Sierra.
245 PM CDT Thu Jun 2 2022 Large upper low will continue to bring dry northwest flow across the area tonight through Friday. Friday the upper low lingers in the area, however moves just east enough to start bringing in some weak ridging. The exception is a few isolated to scattered showers Friday afternoon across the southwest along a weak elevated warm front. For some Friday may be one of the warmer days this week, with highs in the 70s.
While this low is also keeping northern portions of the CWA cooler, it will also advect some low level moisture back into the area, which should help keep clouds around overnight, preventing much widespread frost.
Drier and a bit cooler Friday, but a few spots mainly south may see a shower. Discussion: The cold front to our northwest will move through and exit to our southeast tonight.
A low pressure system was positioned off the NW coast early this afternoon with a shallow downstream ridge positioned over Idaho. The ERN periphery of the low rotates across WRN Washington Friday as the downstream ridge shifts east into WRN Wyoming. With the loss of daytime heating overnight, the shower activity is expected to wane while we fall a little deeper into the SW flow aloft associated with the low off the NW coast.
Southwest flow aloft will remain over the area today with an upper low low off the PacNW coast.
346 PM EDT Thu Jun 2 2022 A cold front and weak area of low pressure slowly shift through the region tonight and exit east on Friday with a trailing trough remaining in the vicinity.
(Tonight) A seasonably cool night is on tap for eastern Oklahoma and western Arkansas as high pressure builds into the region in the wake of the frontal boundary that cleared the area earlier this morning.
With a cooler airmass filtering in, lows should cool into mid 60s.
Huston Weak high pressure ridge remains in place across the area allowing for gradually increasing temperatures. Expecting temps to top out in the 70s across the valleys today with 60s in the higher terrain.
1222 PM CDT Thu Jun 2 2022 Updated aviation section for 18z taf issuance Early this morning a cold front bisected the CWFA near the Ohio River, with just a few showers lingering east of the MS River.
Over the next few hours pockets of heavy rainfall just ahead of a slowly moving cold front will continue to impact areas that have already seen 1 to 4 inches of rain. For areas north of I-40, dewpoints are noticeably cooler and conditions are pleasant and mostly dry.
615 PM EDT Thu Jun 2 2022 An approaching low pressure area with showers and storms have prompted some Tropical Storm Watches along with a Flood Watch for Southwest and parts of West-central Florida through Sat. The big weather concern continues to be with an area of low pressure east of the Yucatan Peninsula. The NHC currently has a 90 percent chance of tropical cyclone development in 48 hours and 5 days. There is still a lot of uncertainty if and when this low may become a tropical cyclone as well as the actual track and intensity as it tracks northeast toward the Florida peninsula.
Today and Friday A ridge will slowly move east today allowing for isolated rain showers and thunderstorms in northwestern Humboldt county this evening. A weak trough will move through northern Nevada Friday causing afternoon and evening thunderstorms and isolated showers in eastern Elko county. Wind gusts associated with this trough will increase tomorrow afternoon and range between 20 and 30 mph across northern and central Nevada north of US 50.
725 PM EDT Thu Jun 2 2022 A cold front will push through the region this evening with rain and thunderstorms.
1027 PM EDT Thu Jun 2 2022 A weak cold front will continue to press southward through south-central PA, ending most of the showers and thunderstorms before nightfall. High pressure will build into the area from the west and stick around all weekend. 5H trough delivering drier air into western PA late this evening. Trough currently swinging east of the WC Mountains and Laurel Highlands, and is maintaining a broken line of showers traversing the NC and Central Mountains with some brief moderate downpours. Aforementioned trough and showers push through eastern zones through 05z, with a drier and more pleasant air mass to move into the region by Friday morning. High pressure moves in from the Ohio Valley. Temperatures will be cooler compared to the past few days with highs around 70 in the Alleghenies to the u70s SE.
There is a small potential overnight lows could get a few degrees cooler than currently forecasted in some valleys over North Central MT because the air is so dry, but with some passing clouds, kept overnight lows as is. Afternoon temperatures remain mild on Friday, before slightly cooler air moves in over the weekend.
825 PM EDT Thu Jun 2 2022 A cold front and weak area of low pressure slowly shift through the region tonight and exit east on Friday with a trailing trough remaining in the vicinity.
633 PM CDT Thu Jun 2 2022 Overall this will be a fairly active weather pattern with numerous chances for showers and thunderstorms as weak short wave troughs slide across the area within a generally zonal fast moving pattern. We don't expect any kind of big upper trough or overly strong system, but more or less weak subtle waves that bring isolated to scattered shower and thunderstorm chances to the area from time to time.
803 PM EDT Thu Jun 2 2022 A cold front and weak area of low pressure slowly shift through the region tonight and exit east on Friday with a trailing trough remaining in the vicinity.
615 PM CDT Thu Jun 2 2022 Broad upper trough stretches from Ontario down through the Great Lakes region and into the Ohio Valley. Right now current indications are that the TX/OK Panhandles along with western OK will have the higher storm chances tonight into Fri morning.
406 PM CDT Thu Jun 2 2022 Overall this will be a fairly active weather pattern with numerous chances for showers and thunderstorms as weak short wave troughs slide across the area within a generally zonal fast moving pattern. We don't expect any kind of big upper trough or overly strong system, but more or less weak subtle waves that bring isolated to scattered shower and thunderstorm chances to the area from time to time.
(Rest of tonight) A cold front has moved south of the forecast area, and northerly flow will advect cooler and drier air through the area overnight.
Current observations indicate that the cold front has cleared the CWA, with all leftover shower activity diminished and any lingering clouds pushing south and east out of the area into the evening. Dew points will mirror this decreasing trend as high pressure builds across the area, advecting drier air in. Ridging continues to build into Indiana from the Central Plains, with a persistent dry column keeping skies clear and temperatures in the mid to upper 70s. Flow will be primarily zonal for the beginning of the forecast period, before eventually shifting to northwesterly flow as the ridge strengthens. Subsidence persists into Friday night as high pressure moves directly over the CWA. Clear skies, temperatures in the low 50s, and dry air will stem from this, marking a pleasant start to the weekend.
Still a few showers can't be ruled out through early Friday morning as weak pockets of ascent continue to meander about the region as the trough axis swings through. Lows will only be slightly cooler as they range from the middle 60s to around 70.
Northwest flow and a slight high pressure will keep us sunny the rest of the evening then clear overnight. Low temperatures overnight will probably reach the mid 30s in most locations and possibly the low 30s in localized low areas due to clear skies and calm winds. We will continue to watch the low temperatures tonight as the NBM has had them too warm this week. Large upper low will continue to bring dry northwest flow across the area tonight through Friday. Friday the upper low lingers in the area, however moves just east enough to start bringing in some weak ridging. The exception is a few isolated to scattered showers Friday afternoon across the southwest along a weak elevated warm front. For some Friday may be one of the warmer days this week, with highs in the 70s.
657 PM EDT Thu Jun 2 2022 Dry weather returns tonight through the weekend under building high pressure. Front continues to try and push through the area, but it appears to be in no hurry as it fights against the SE CONUS ridge and there is no significant upper level support to the north to give it a nudge. Noticeably cooler and more comfortable overnight. High pressure will begin to take hold on Friday.
Only light showers remain across the southern half of the Midsouth with drier, cooler air filtering in from the north. Overnight lows should be mostly in the low to middle 60s. High temperatures should be in the low to middle 80s.
450 PM MDT Thu Jun 2 2022 H5 ridge continues to sweep east across the Rockies during the next 24 to 36 hours. The ridge itself is not particularly strong, so embedded impulses will be able to build up convection, given enough sfc lift and moisture.
That pattern consisting of a mid level low near Hudson's Bay, with an upstream ridge over the Rockies. Flow around the upper low will tend to keep a cooler airmass over the region into the weekend, along with several chances of rain.
814 PM EDT Thu Jun 2 2022 A weak cold front will continue to press southward through south-central PA, ending most of the showers and thunderstorms before nightfall. High pressure will build into the area from the west and stick around all weekend. For Friday, high pressure at the surface will push into our area from the west. The upper trough should be lifting away on Friday, so it should remain dry, but a highly-isolated --SHRA is not out of the question over the Alleghenies. Temperatures will be cooler compared to the past few days with highs around 70 in the Alleghenies to the u70s SE.
High pressure will move southeast thru central ND overnight and with clear sky and light widespread lows in the 36 to 39 range anticipated. As the low pressure continues to move off to the east, the pressure gradient will begin to diminish over the evening hours. In addition, as high pressure settles in over the area, clearing skies and weakening winds will allow for cooling temps and potential fog and frost overnight tonight. Quiet weather will persist tomorrow with warmer highs in the upper 60s. Large scale pattern dominated by an upper low near Hudson Bay slowly transitions to more of a westerly zonal pattern in the Northern Plains, though broader troughing keeps lower heights in place aloft.
There is a back door cold front entering the northeast corner of the CWA. But, the set up supports fog potential (cool airmass, light winds, clear skies, and a surface pressure "trof" in the form of the gradually becoming stationary cold front). That pattern consisting of a mid level low near Hudson's Bay, with an upstream ridge over the Rockies. Flow around the upper low will tend to keep a cooler airmass over the region into the weekend, along with several chances of rain.
Northwest winds have finally taken hold enough to drive out some of the low level moisture. Given the high June sun angle and the dry air mass, will not fight the nbm temps too much.
512 PM MDT Thu Jun 2 2022 Upper air analysis shows upper low near Hudson Bay and a second low just offshore the Pacific NW coast. Ridging is persisting across the central to northern Rockies, with northwest flow aloft over the northern Great Plains. Cooler, drier air is filtering into ND, but more moisture over western SD is allowing plenty of altocu to develop. The first wave is expected tonight, which will bring elevated showers and thunderstorms to NE WY through SW SD, along a theta E ridge.
519 PM MDT Thu Jun 2 2022 The short term period will be dominated by a progressive ridge which will slowly move east across the forecast area on Friday. As the ridge moves east across the area, some high cloudiness can be expected through tomorrow. On Friday, deep mixing will combine with some residual moisture advecting from eastern New Mexico to generate more robust afternoon cumulus development with a few showers possible, especially over the higher terrain.
Some areas are a few degrees cooler than this time yesterday particularly in the Sacramento Valley and Delta. By tomorrow, ensembles are in very good agreement large scale troughing off the coast will bring cooler and unsettled weather to northern California into this weekend. Locally breezy onshore winds, cooler temperatures about 5 to 10 degrees below normal for this time of year, and chances for showers will be possible.
/issued 225 PM CDT Thu Jun 2 2022/ Mid/upper-level ridging continues to build into the region with a compact vorticity lobe detected on water vapor imagery over Las Vegas, Nevada. Dense, low-level overcast will persist into the overnight hours as winds remain out of the east and southeast from the departing surface anticyclone, resulting in a mild and damp night area-wide with lows in the upper 50s/lower 60s.
1027 PM EDT Thu Jun 2 2022 A cold front will move through the area Friday, leading to an increase in shower and storm chances. Ridge weakens overnight ahead of an advancing cold front. Winds around 5-10 mph overnight as the cold front approaches the area and high-level clouds move-in ahead of the convection well to our west. Cold front approaches the area tonight and into early Friday. Cold front will interact with the sea breeze and widespread convection should result with modest instability, increasing moisture advection ahead of the front, and additional shear with the cold front in the area. A cold front will be moving across the area at the beginning of the period and it may be quite active.
728 PM EDT Thu Jun 2 2022 A cold front will move through the area Friday, leading to an increase in shower and storm chances. Ridge weakens overnight ahead of an advancing cold front. Winds around 5-10 mph overnight as the cold front approaches the area and high-level clouds move-in ahead of the convection well to our west. Cold front approaches the area tonight and into early Friday. Cold front will interact with the sea breeze and widespread convection should result with modest instability, increasing moisture advection ahead of the front, and additional shear with the cold front in the area. A cold front will be moving across the area at the beginning of the period and it may be quite active.
652 PM EDT Thu Jun 2 2022 A ridge of high pressure sliding through the Central Great Lakes tonight will provide clear skies and light winds, once the diurnal sct clouds (7-9 kft) dissipate shortly after the taf issuance time. A cold front tomorrow will lead to a mid deck (7-10 kft) of clouds through much of the day, with the deep boundary layer mixing supporting westerly winds gusts up around 25 knots during the afternoon hours. Temperatures peaking in the lower 70s with much lower dewpoints compared to yesterday (40s to low/mid 50s) will allow for a much more comfortable feel to the air as cloud cover eventually rapidly diminishes as subsidence fully takes hold with the arrival of sunset.
(This evening through Friday) Cold front sagging into our area is expected to stall through through the weekend before slightly retrograding. Rain chances look a bit better for Friday as the stalled cold front acts as a focus for some storms.
High pressure is currently centered over western Kansas this afternoon with north to northwesterly winds of 10 to 15 MPH with gusts up to 25 MPH. Discussion: Gusty northwest winds will quickly diminish this evening as temperatures cool and the atmosphere decouples with high pressure passing to our south.
629 PM CDT Thu Jun 2 2022 (Tonight) A seasonably cool night is on tap for eastern Oklahoma and western Arkansas as high pressure builds into the region in the wake of the frontal boundary that cleared the area earlier this morning.
A cold front is located from eastern KY through Middle TN, with a line of convection located just ahead of it. Showers and thunderstorms will continue to be around the area until the passage of a cold front, which is expected to occur late tonight, around 06-09Z. Drier and a bit cooler Friday, but a few spots mainly south may see a shower. Discussion: The cold front to our northwest will move through and exit to our southeast tonight.
1142 PM MDT Thu Jun 2 2022 The short term period will be dominated by a progressive ridge which will slowly move east across the forecast area on Friday. As the ridge moves east across the area, some high cloudiness can be expected through tomorrow. On Friday, deep mixing will combine with some residual moisture advecting from eastern New Mexico to generate more robust afternoon cumulus development with a few showers possible, especially over the higher terrain.
Storms will end during the early morinng hours as temperatures will fall into the upper 60s in cntrl La to the lower 70s along the I-10 corridor.
(This evening through Friday) Issued at 328 PM CDT Thu Jun 2 2022 Cold front sagging into our area is expected to stall through through the weekend before slightly retrograding. Rain chances look a bit better for Friday as the stalled cold front acts as a focus for some storms.