Aikyam-Lab/Synoptic-Bench huggingface dataset:
645 AM EDT Sun Jun 30 2024 - Cooler today and tonight with few clouds.
This is all set up from the southerly flow over eastern Arizona, due to a ridge to our east and the continued presence of a trough over the Pacific NW.
618 AM CDT Sun Jun 30 2024 Today and Tonight: Once again, dangerous heat will be the main concern for today as early morning global guidance continues to highlight upper ridging across much of the southeast CONUS. Global guidance shows a high pressure system moving east across the Ohio River Valley later this evening. Rain chances will still be possible along and south of the cold front later in the evening before diminishing heading into the overnight period. Expect nighttime temperatures to drop in the low to mid 70s areawide.
604 AM CDT Sun Jun 30 2024 One more day of hot and humid conditions for portions of the Mid- South before a cold front sweeps through the region this evening.
Look for highs in the low to middle 90s. Meanwhile a trough will be along the Gulf Coast.
953 AM EDT Sun Jun 30 2024 A cold front pushes through today with scattered severe thunderstorms possible, especially in Northeast Pennsylvania and from the Interstate 88 corridor southward in New York.
634 AM CDT Sun Jun 30 2024 (Today and tonight) Upper-level ridging will remain over North Texas today but may wobble towards the forecast area this afternoon before shifting east this evening. A weak surface cold front was located along I-40 as of 2 am but this boundary is expected to lift back to the northeast today as a warm front. Thickness values will actually decrease slightly today which will keep temperatures near to a few degrees cooler than what was observed yesterday. This will keep high temperatures in the mid 90s to the lower 100s.
212 PM EDT Sun Jun 30 2024 High pressure and a cooler, drier airmass will remain in place across the region through Monday. Lows tonight will be mostly in the low to mid 50s with even some upper 40s possible in outlying areas.
1120 AM MDT Sun Jun 30 2024 -Moisture and warmer temps return today with slight chances for thunderstorms -Stronger system will bring increased chances for storms Monday, some of which may be severe -Unsettled pattern will bring near daily chances for storms the remainder of the week with temps around normal or slightly below Fairly active northern stream will prevail this week with near daily chances for showers and storms as a frontal boundary wavers over the region. Warmest day this week will be today as temps surge into the 90s over the western third (approaching 100 at some locations on the WY plains), much cooler in the east.
Scattered thunderstorms will end this evening as slightly cooler and drier air moves into the Mid-South.
The past few days we've had a high pressure system over East Texas/Louisiana that promoted southerly flow and kept dew points in the low to mid 70s. The high has elongated along the Gulf Coast, resulting in light surface flow over our region and weakening the influx of moisture. The bad news is that the mid-level high will build and the low- level flow will veer, resulting in higher temperatures each afternoon for the next couple days. A cold front did move into southern Oklahoma this morning that is helping develop scattered storms to our north. Similarly, as the mid-level ridge shifts, there is a 20% chance of isolated storms over East Texas tomorrow afternoon. Relief may be on the horizon, as there are indications the ridge will weaken late this week as a longwave trough/upper low moves into the Central CONUS.
Currently the synoptic cold front is a bit south of I-44, with a subtle outflow boundary in the vicinity of I-40.
242 PM CDT Sun Jun 30 2024 Tonight and tomorrow: A few showers and storms could linger past sunset tonight, as a surface cold front pushes south across the area. Heat makes a return mid week with upper ridging continuing to build eastward.
0-6 km bulk shear collocated with the highest instability varies between 15-25 knots. This is all set up from the southerly flow over eastern Arizona, due to a ridge to our east and the continued presence of a trough over the Pacific NW.
240 PM EDT Sun Jun 30 2024 A cold front pushes through today with scattered severe thunderstorms, especially in Northeast Pennsylvania and from the Interstate 88 corridor southward in New York.
More of the same is expected tomorrow as an upper level high pressure system over the Red River Valley remains in place advecting seasonably hot air over the CWA.
1229 PM CDT Sun Jun 30 2024 (Today through Monday night) High pressure will gradually strengthen and slowly shift east this week. As the high strengthens and centers over central OK tomorrow, south to southwest flow will prevail, as well as lower dewpoints. Overall, today's highs will be in the lower to mid 90s, with temperatures warming into the upper 90s to lower 100s on Monday.
Thereafter, the upcoming week looks to be on the cooler side of average, with daily opportunities for showers and thunderstorms through July 4th. Looking toward this weekend, warmer and drier conditions are favored. The leading wave within an approaching upper level trough is passing across the region this afternoon. Although the most favorable area for ascent will exit eastward tonight, the broad upper trough across the region will still allow for showers and thunderstorms to develop across Southwest Montana tonight, with impacts being much more limited. The broad troughing will remain in place across the northern Rockies, allowing for scattered showers and thunderstorms, mainly in the afternoon and evening.
1213 PM CDT Sun Jun 30 2024 - Scattered showers and storms quickly diminish after daybreak as a cold front moves through the region. Cooler conditions with much lower humidity can be expected later this afternoon through Monday.
The good news is that a cold front is moving south across the area this morning. Some areas within the advisory/warning areas will get some relief from the heat this afternoon as scattered, diurnal convection develops along and just south of the cold front. Given the moisture in place and presence of the cold front, will favor the wetter solutions today. Any storms that develop should end by sunset as the cold front moves south of the area and the boundary layer begins to stabilize. MJ One more day of hot and humid conditions for portions of the Mid- South before a cold front sweeps through the region this evening.
123 PM EDT Sun Jun 30 2024 - Cooler and less humid conditions continue into tomorrow as high pressure ensures a dry forecast.
1220 PM CDT Sun Jun 30 2024 (Today through Monday afternoon) The stagnant pattern we've observed for the last several days persists through the beginning of the week with persistent upper ridging spanning from northern Mexico through the Gulf Coast. Synoptic subsidence ticks up a bit tomorrow with the ridge becoming stronger and more centered over the ArkLaTex.
153 PM EDT Sun Jun 30 2024 - Cooler today and tonight with few clouds.
Cooler and drier air moving in tonight. The cold front passes through tonight, brining cooler and drier air into the region.
A strong cap is expected to erode along the high terrain of central Montana late this afternoon, as moisture advection will push dewpoints into the upper 50s to low 60s. Bulk shear will mainly be above 40 knots, the low level jet will eventually exceed 30 knots and MU CAPE values are expected to exceed 800 J/kg. The highest values are centered on Garfield and Petroleum county.
Conditions will feel a bit cooler North of I20 where dewpoints could be as low as the mid 60s.
This rain should make for a slightly cooler day tomorrow with heat index 105 or less for at least S AR.
Today and tomorrow the upper level pattern remains quasi zonal as high pressure remains parked over north Texas. Meanwhile at the surface lee side trough and high pressure building near the Great Lakes will result southerly winds becoming more southwesterly, but remaining light across the area.
At the surface, weak ridging remains in place, with the axis shifted a little farther north today.
347 PM EDT Sun Jun 30 2024 A cold front will push through the area tonight into Monday.
314 PM EDT Sun Jun 30 2024 - Cooler and less humid conditions continue into tomorrow as high pressure ensures a dry forecast.
(This evening through Monday) Isolated to widely scattered showers and thunderstorms remain possible through early evening along the quasi-stationary front as it slowly shifts north of I-40 and transitions as a warm front late tonight. The 599 dam high pressure ridge observed over north Texas this morning weakens slightly while sliding to the east as a trough departs the Pacific Northwest deepens over the northern high plains tomorrow.
147 PM EDT Sun Jun 30 2024 A cold front pushes through today with scattered severe thunderstorms, especially in Northeast Pennsylvania and from the Interstate 88 corridor southward in New York.
305 PM EDT Sun Jun 30 2024 A cold front will move through Monday bringing a reprieve from the heat and humidity into mid week. Pre frontal trough lighting up this afternoon just to the northwest poised to move into the area in the next little bit as more sporadic convection is slowly developing elsewhere. Its worth noting the higher pops overall tonight represent the possibility convection fills in somewhat between two expected pushes. Highlights: *Unseasonably cooler and drier through the period Confidence: *Moderate to High Details: A rather unseasonably cooler and drier air mass is expected to prevail through the period as high pressure builds in from the north behind a departing cold front to the south.
Current wv imagery depicts upper ridge over the Rockies/northern plains. The dry air at the low to mid levels is contributing to a strong cap which will inhibit convection this afternoon across much of the area. The main trough with attendant front will cross the region Monday, bringing chances for storms to the region once more.
1228 PM CDT Sun Jun 30 2024 (Today and tonight) Upper-level ridging will remain over North Texas today but may wobble towards the forecast area this afternoon before shifting east this evening. A weak surface cold front was located along I-40 as of 2 am but this boundary is expected to lift back to the northeast today as a warm front. Thickness values will actually decrease slightly today which will keep temperatures near to a few degrees cooler than what was observed yesterday. This will keep high temperatures in the mid 90s to the lower 100s.
500 PM EDT Sun Jun 30 2024 Strong to severe storms will be possible through this evening as a cold front drops south and across the area. Cooler and less stifling humidity will arrive for Monday with highs in the 70s. A few showers will be possible in southern areas as the upper level low lingers just offshore.
328 PM EDT Sun Jun 30 2024 Strong to severe storms will be possible through this evening as a cold front drops south and across the area. Cooler and less stifling humidity will arrive for Monday with highs in the 70s. A few showers will be possible in southern areas as the upper level low lingers just offshore.
(Tonight through Monday night) A tropical disturbance in the southern Bay of Campeche could become a Tropical Cyclone before making landfall in Mexico. The NHC has an 80% chance for tropical cyclone development in the next 48 hours. The dominant feature for the short term period will be an upper- level ridge over North Texas, that will slowly shift east through the period.
Where is that cold front? NW winds will veer to N/NE during the remainder of the day.
The highest confidence is for SWFL terminals, and the lowest confidence is for KLAL.
This should allow temperatures to warm into the low to mid 90s, assuming convection holds off til afternoon, which most CAM guidance does, with most initiating by mid afternoon. /SAS/ Today and Tonight: Once again, dangerous heat will be the main concern for today as early morning global guidance continues to highlight upper ridging across much of the southeast CONUS. Global guidance shows a high pressure system moving east across the Ohio River Valley later this evening. Rain chances will still be possible along and south of the cold front later in the evening before diminishing heading into the overnight period. Expect nighttime temperatures to drop in the low to mid 70s areawide.
1121 AM EDT Sun Jun 30 2024 A cold front pushes through today with scattered severe thunderstorms, especially in Northeast Pennsylvania and from the Interstate 88 corridor southward in New York.
(Tonight) After the ongoing medium-high chances of showers/storms (40-75%) subside in the wake of a cold front later this evening, dry conditions are forecast to prevail overnight throughout the TN Valley.
DS/12 (Now through Monday) An upper level ridge will remain centered west of the area through Monday.
Temps will be about 10 degrees cooler today than yesterday. Mid to high clouds with isolated to scattered showers and thunderstorms today, mainly across the higher terrain of Owyhee County.
226 PM EDT Sun Jun 30 2024 A cold front crosses the area today.
1250 AM CDT Wed Apr 3 2024 (This evening through Wednesday) As the trough axis from the strong upper low over the Great Lakes finally exits out of the region tonight, our area will start to enter a more broad upper level ridging regime. With continued, albeit weakening, cold air advection behind the cold front from this morning, temperatures overnight tonight will fall into the upper 30s the low 40s. This may allow some of our notorious cold spots and low lying areas, such as river valleys, drop even further, potentially approaching freezing levels (though this is not expected to be widespread).
211 AM EDT Wed Apr 3 2024 A strong low pressure system will move northeast to southern Lake Michigan tonight. A cold front trailing from this low will move east across the region, bringing a period of showers and thunderstorms along and ahead of it.
(Tonight through Tuesday) An anomalously deep upper level low will settle to the northeast of the area Wednesday, maintaining cool northwesterly flow over the area.
1134 PM CDT Tue Apr 2 2024 The weather is fairly quiet through the rest of this week, with seasonable days and seasonable or even cooler than seasonable nights thanks to some dry air in place early this week.
A few embedded lightning strikes may persist as it does so, but overall, convective activity will transition to more widespread valley rain and mountain snowfall as a cold front stalls across west central Montana, generally along a line from Great Falls, MT to Hamilton, MT to Grangeville, ID. Along and northwest of this line, cooler, wetter, and windier conditions are anticipated.
1141 PM CDT Tue Apr 2 2024 (This evening through Wednesday night) Upper trough late this afternoon extended from the western Great Lakes to west Texas, with upper ridging along both the Atlantic and Pacific coasts. At the surface, a cold front extended from near Memphis to near Lake Charles. There was an area of comparatively drier air over about the northwest third of the CWA at 3 PM where dew points were in the mid 60s, which could be inhibiting convection a bit, with dew points in the lower 70s elsewhere.
Otherwise, high temps should be slightly warmer than yesterday, but still several degrees below average. (Tonight through Tuesday) The aforementioned upper low sluggishly moves into the NE CONUS through the end of the week with ridging expanding into the CWA.
Upper level trough moving across the area will keep some mid and high clouds across the area for setup wont be perfect. Warming trend starts on Wednesday with temperatures rebounding back int the low to mid 70s across the area.
As cloud cover gradually erodes northwest to southeast, temperatures are maxing out in the low 60s across our western counties to the mid 50s across central and north central Oklahoma. Most areas should stay above freezing, though with clear skies and light winds a few localized areas in northwest Oklahoma could touch 32 degrees Fahrenheit.
349 AM EDT Wed Apr 3 2024 An upper level low pressure system will move slowly east across the Ohio Valley through the end of the work week, resulting in occasional showers and much cooler temperatures. Weak high pressure will lead to drier conditions and a bit of a warmup for the weekend. Cyclonic low level flow and CAA in the wake of the cold front is leading to some areas of drizzle early this morning. An upper level low will rotate slowly southeast toward our area through the day. Temperatures will be well below normal, with highs ranging from the mid 40s in the northwest to the lower 50s in the southeast.
1220 AM CDT Wed Apr 3 2024 - Dry and trending warmer through the end of the week. There is a small signal fog some fog tonight from the western sandhills into the northern panhandle but otherwise, building high pressure surface and aloft will continue our stretch of quiet and dry weather for the next several days, though winds will still be gusty tomorrow especially east of Hwy 83. With warmer air surging into the region from the southwest, highs tomorrow will range form the lower 60s from the panhandle across southwest Nebraska, but will only be in the upper 40s further to the northeast up toward O'Neill. Ensemble guidance is in good agreement in building a large highly amplified ridge over the western US with dry and warm conditions expected through the end of the workweek.
/33/ (This evening through Wednesday Night) A cold front continues to bisect the region this afternoon as it gradually ushers in noticeably milder and drier air in its wake. Convection remains well out ahead of the front, generally invof of the initial sfc boundary which acted more as a pre-frontal trough. Behind the true cold front, abundant stratocu is noted on visible satellite as the flow remains SWly just above the sfc due to the lagging upper-level trough to our W/NW. Eventually, these clouds will diminish through the evening and overnight hours along with the gusty W/NW winds behind the cold front. The more consequential impact will be the resurging NW winds in the wake of the advancing cold front to our east and advancing high pressure to our north and west.
A cold front will then sweep eastward thru the area later tonight following the tstm activity, with cooler/drier air in tow. With the influx of cooler air, overnight lows look to fall mainly into the lower/mid 40s for most spots.
1127 PM EDT Tue Apr 2 2024 A strong low pressure system will move northeast to southern Lake Michigan tonight. A cold front trailing from this low will move east across the region, bringing a period of showers and thunderstorms along and ahead of it.
The region will flip back to unsettled and much cooler weather the next several days as a low pressure system drops southward from the Gulf of Alaska. The cold front, currently moving into the PacNW, will move into far northern California this afternoon before sweeping south and east late in the day and this evening accompanied by a few showers.
A relatively deep low pressure system was centered over central Lake Michigan as of 08Z. Several lobes of vorticity were rotating around the main low pressure center as revealed by GOES-East satellite imagery. We still expect an additional 4 to 10 inches of snow in the higher terrain from southeast Bayfield, central Ashland, and northern Iron counties with lower totals of a dusting up to around 4 inches elsewhere.
659 AM CDT Wed Apr 3 2024 (Wednesday through Thursday) Northwest winds will continue to bring a very noticeably cooler and less humid airmass into the region today. This can already be felt, as current temperatures this morning have already dropped into the 40s areawide, which is about 25 degrees cooler than temperatures were at this time last night. Winds have taper down across the area this morning, but another longwave trough will push through the Southern Plains and Lower Mississippi Valley today, bringing more gusty conditions.
Look for a low pressure system and strong cold front to bring a round of active weather to northern and central Nevada beginning today through tomorrow.
Water vapor imagery highlights a deep cyclone centered over the Great Lakes, north of a broad belt of southwesterlies which are nearly parallel to a cold front sagging southeast in the eastern Gulf of Mexico. The FL RAOBs sampled falling heights at all SGLs this morning, and yet, the low-level flow remains anticyclonic. From synopsis, moderate to fresh breezes will veer to the south to southwest today, in advance of another late season cold front pushing across the Gulf of Mexico.
Otherwise, high temps should be slightly warmer than yesterday, but still several degrees below average.
305 AM MST Wed Apr 3 2024 High pressure will bring dry conditions and warming temperatures through Thursday as highs peak in the mid eighties across the lower deserts.
606 AM CDT Wed Apr 3 2024 (Today through Thursday afternoon) An upper level ridge moves in overhead for today and the rising heights will lead to temperatures reaching into the 70s for most. Normal highs for the beginning of April sit in the mid to upper 70s (for KMAF it's 78F for the high and 48F for the low) and that is where most locations will end up. The warming trend continues on Thursday with highs reaching into the low 80s for most.
(Wednesday through Thursday) Northwest winds will continue to bring a very noticeably cooler and less humid airmass into the region today. This can already be felt, as current temperatures this morning have already dropped into the 40s areawide, which is about 25 degrees cooler than temperatures were at this time last night. Winds have taper down across the area this morning, but another longwave trough will push through the Southern Plains and Lower Mississippi Valley today, bringing more gusty conditions.
(Today through Thursday) The line of storms has exited the area to the southeast, with a cold front stretching from near Anniston to Selma. A vertically stacked closed low system will spin over the Midwest today, with a secondary cold front arriving tonight over the Southeast.
High pressure will bring dry conditions and warming temperatures through Thursday as highs peak in the mid eighties across the lower deserts.
The lift and snow rates will weaken from late this morning and through the afternoon as the low moves south.
514 AM PDT Wed Apr 3 2024 Dry and warmer today with patchy dense fog for coastal areas early this morning.
Skies clear tonight into Thursday with high pressure moving over the area by late Thursday aftn. Less wind Thursday but a bit warmer with low to mid 50s in eastern ND/RRV and upper 40s far east around Bemidji.
- Low temperatures are expected to dip to near freezing.
1055 AM EDT Wed Apr 3 2024 An upper level low pressure system will move slowly east across the Ohio Valley through the end of the work week, resulting in occasional showers and much cooler temperatures. Weak high pressure will lead to drier conditions and a bit of a warmup for the weekend. Very deep and anomalous H5 trough with height anomalies to -3. The upper level low will rotate east across the upper Ohio Valley tonight into Thursday. As some cooler air moves in from the northwest, some snow showers will mix in with the rain showers tonight into Thursday morning. Temperatures will remain seasonably cold with lows tonight in the low to mid 30s and highs on Thursday mostly in the mid 40s.
With good radiational cooling temperatures will approach freezing across north central Oklahoma by sunrise Thursday.
636 AM CDT Wed Apr 3 2024 (Today through Thursday) A strong cold front has pushed through Middle TN and that is going to bring much cooler weather for the rest of the week. The upper level trough with this low will slowly push east and hang over the Northeast into the end of the week. With troughing over us today we will see scattered showers develop mainly during the afternoon. The upper level trough will be further to the east on Thursday and that will bring a drier forecast for much of the area but a few showers may hang on over the Plateau into the afternoon.