Aikyam-Lab/Synoptic-Bench huggingface dataset:
339 PM EDT Mon Apr 15 2024 High pressure will persist through the end of the week. A cold front is then forecast to impact our area this weekend. Tonight: Broad ridging aloft will continue to spread into the area, as the Bermuda-Azores High prevails over and nearby at the surface.
1224 PM CDT Mon Apr 15 2024 (Today through Tuesday) Early morning upper air pattern showed upper ridging from south Texas to the Dakotas, with an upper low centered near Las Vegas. At the surface, high pressure extended from near Bermuda westward across much of the northern Gulf of Mexico. The axis of the upper ridge will shift to the east of the area on Tuesday, as the upper low near Las Vegas lifts northeastward to near Omaha by Tuesday evening.
Below normal temperatures give way to above normal temperatures by the weekend as building high pressure leads to a warming trend across SE AZ this week. The low pressure has steadily pushed out of the area today, leaving behind cooler than normal temperatures and mostly clear skies. Gusty afternoon winds stick around today due to the tightened pressure gradient from the low pressure to our north. The low makes way for some zonal upper-level flow with minor ridging through the rest of the week.
Near normal afternoon high temperatures (cooler in the mountains) tomorrow then colder temperatures for the rest of the work week.
(Tonight) High clouds continue to gradually spread into the mid TN Valley from the west, as an upper ridge pattern expands across the western Gulf states. A subtropical ridge at the sfc also remains in place over the eastern Gulf Coast, translating into a SW flow across much of the region. The combination of these features has lead to a seasonably warm day, with highs expected to climb into the lower/mid 80s for most spots.
Discussion: Convection has begun to develop along a pre-frontal trough across northern WV/VA.
1221 PM CDT Mon Apr 15 2024 (Today and tonight) A mid/upper low located just northeast of Las Vegas, NV early this morning will move northeastward over southeastern Utah this morning and then to the Colorado Front Range this afternoon.
High pressure prevails over the local area, as the ridge axis remains stretched from the western Atlantic towards the Florida peninsula. Meanwhile, coastal areas remain in the lower 60s, due to light onshore wind. The warming trend will continue, as highs reach the upper 80s inland and the lower to mid-80s elsewhere.
(Rest of tonight) Tranquil weather across the Tennessee Valley this evening with high pressure still in control. Overall, very similar conditions to last night (save for the high cloud cover) as light southerly breezes will help maintain this mild air mass.
350 PM PDT Mon Apr 15 2024 A cold front will bring a return of cooler and showery weather early this week. Warmer, dry weather is expect to return later this week. Tonight and Tuesday: The cold front will exit the region. Outside of the Cascades, the shower activity is expected to be in the higher terrain along the Canadian Border.
753 PM EDT Mon Apr 15 2024 (Rest of today through Tuesday) A rather strong mid level ridge centered over the southwestern Gulf of Mexico will extend eastward towards South Florida through the rest of this afternoon and into Tuesday. At the surface, high pressure centered over the western Atlantic will keep an easterly wind flow in place during this time frame. High temperatures on Tuesday will rise into the lower 80s across the east coast metro areas, and into the mid to upper 80s across Southwest Florida.
1018 PM EDT Mon Apr 15 2024 -High pressure over the Upper Great Lakes will build Southeast into the region tonight and Tuesday with dry conditions and light wind. A ridge of high pressure at the surface and aloft will extend through the CWA Tuesday, followed by its associated upper ridge axis moving over the Ohio/PA state line around midnight Tuesday night. Cirrus, then sct- bkn Altocu will spread east into the region Tuesday night, to the north of an approaching warm front that will extend from Central Oh through Southern PA. Convection will likely develop along the aforementioned warm front/quasi-stnry boundary to our south and west, but most of the convection should stay closer to the boundary away from our area.
1032 PM EDT Mon Apr 15 2024 High pressure passing across the region will provide fair dry weather through Tuesday. as a weakening area of broad low pressure moves into the Great Lakes. Expansive high pressure centered over the Canadian prairies will gradually nose across the Lower Great Lakes through Tuesday.
The second round would be overnight as the Pacific front surges eastward under the influence of the upper low. The low level jet will be quite strong with this second round, yielding stronger low level shear and a low risk for tornadoes with any storms that do develop.
Models support zonal flow to weak ridging over the area tonight through mid week with dry weather, cool to cold overnight temperatures and mild to warm daytime highs.
744 PM EDT Mon Apr 15 2024 (Rest of today through Tuesday) A rather strong mid level ridge centered over the southwestern Gulf of Mexico will extend eastward towards South Florida through the rest of this afternoon and into Tuesday. At the surface, high pressure centered over the western Atlantic will keep an easterly wind flow in place during this time frame. High temperatures on Tuesday will rise into the lower 80s across the east coast metro areas, and into the mid to upper 80s across Southwest Florida.
721 PM EDT Mon Apr 15 2024 (Through Tuesday) High pressure conditions will continue through the rest of today and tonight with mostly clear skies, dry weather, and mild winds persisting through the forecast area.
856 PM EDT Mon Apr 15 2024 High pressure will persist through the end of the week. A cold front is then forecast to impact our area this weekend. Lows will range from the mid-upper 50s well inland to the lower-mid 60s at the beaches and Downtown Charleston.
The low level jet will increase the next few hours, improving shear profiles and advecting a more favorable profile below 800 hPa or so.
603 PM EDT Mon Apr 15 2024 High pressure will persist through the end of the week. A cold front is then forecast to impact our area this weekend. Tonight: Broad ridging aloft will continue to spread into the area, as the Bermuda-Azores High prevails over and nearby at the surface.
252 PM PDT Mon Apr 15 2024 A cold front will bring a return of cooler and showery weather early this week. Warmer, dry weather is expect to return later this week. Tonight and Tuesday: The cold front will exit the region. Outside of the Cascades, the shower activity is expected to be in the higher terrain along the Canadian Border.
656 PM EDT Mon Apr 15 2024 High pressure will bring dry and mild conditions through Tuesday.
742 PM EDT Mon Apr 15 2024 High pressure will bring dry and mild conditions through Tuesday.
1028 PM EDT Mon Apr 15 2024 High pressure passing across the region will provide fair dry weather through Tuesday. as a weakening area of broad low pressure moves into the Great Lakes. Expansive high pressure centered over the Canadian prairies will gradually nose across the Lower Great Lakes through Tuesday.
651 PM CDT Mon Apr 15 2024 (This evening through Tuesday Night) Upper ridging remains in place over the region. The upper ridge will shift east of the region by this evening, and then we will transition into SW Flow aloft ahead of an approaching trough and associated frontal boundary. By tomorrow, the aforementioned trough will start to eject into the Northern Plains.
Currently - A surface Atlantic ridge stretching across northern Florida and along the Gulf Coast is maintaining gentle to moderate, but gusty easterly breezes along the Keys this evening. Stable conditions due strengthening ridging through the lower and mid levels and amplifying descending branch aloft. Rather mild conditions continue with temperatures in the mid 70s and dew points in the lower 60s. Short Term Update - Ridging at all levels will continue to dominate Keys weather through the overnight period. On balance, lows will be in the lower 70s with dew points lingering in the lower 60s. A ridge across northern Florida will maintain moderate to fresh easterly breezes on Keys waters through the overnight period.
742 PM EDT Mon Apr 15 2024 High pressure will lead to unseasonably warm and quiet weather through midweek. Latest high res models show a weak backdoor cold front reaching down into the northern portion of our area helping to veer winds briefly to the W-NW through the morning hours before lifting back north shifting winds back to the south by Tues aftn. The former providing the warmth in the low levels while the latter keeps the column extremely dry. Quiet forecast continues, with the offshore high pressure and Gulf ridging maintaining an influence on the area. Biggest thing to note is an increase in cloud cover this period, due to a weak cold front approaching from the west.
737 PM EDT Mon Apr 15 2024 High pressure will persist across the area through tonight.
WEATHER PATTERN OVERVIEW: Cold front moves through tonight which along with an upper level trough that will bring an end to our above average temperatures.
647 PM CDT Mon Apr 15 2024 (This evening through Tuesday night) Upper ridging axis curves from the northern plains, through the central midwest, and into the northwest gulf. A low pressure sink is centered just north of the four-corners. As we move through the short term, the low moves over the upper midwest trailing a frontal boundary that should be maturing but forced by the high pressure over the Gulf to sit north of us by the end of the short term.
642 PM CDT Mon Apr 15 2024 (Tonight) High clouds continue to gradually spread into the mid TN Valley from the west, as an upper ridge pattern expands across the western Gulf states. A subtropical ridge at the sfc also remains in place over the eastern Gulf Coast, translating into a SW flow across much of the region. The combination of these features has lead to a seasonably warm day, with highs expected to climb into the lower/mid 80s for most spots.
953 PM CDT Mon Apr 15 2024 Despite plenty of instability there is little in the way of forcing with the warm front as it slowly lifts northward, thus lowered POPs for tonight (20 percent most locations).
645 PM CDT Mon Apr 15 2024 Windy weather will develop on Tuesday as a cold front approaches the region.
1007 PM EDT Mon Apr 15 2024 High pressure will bring dry and mild conditions through Tuesday.
Gusty northerly winds are forecast through mid-week as high pressure builds into Northwest California. An inverted ridge of high pressure will continue to build into Northwest California as an upper cutoff low continues its trek east. Northerly winds will continue to increase along the tightening pressure gradient between the building ridge and departing low.
241 AM EDT Tue Apr 16 2024 A quasi stationary front will linger across the southern parts of the area overnight, before returning northward as a warm front on Tuesday. This front will return northward later today as a warm front. Meso NAM shows effective layer CAPE of over 2000 at CRW and HTS this afternoon with a freezing level around 11000 feet. Models showing a line of showers and thunderstorms in Ohio moving eastward by daybreak Wednesday, ahead of an approaching cold front. Wednesday night the cold front with the aforementioned low approaches. Cooling aloft combined with low level moisture pooling along the frontal surface should yield some modest instability, 1000- 1500J/kg MLCAPE, modest deep layer shear of 30-35KTs, and some modest turning in the low level wind field.
(Today through Wednesday) 500 mb high pressure will continue to be the dominant feature influencing Deep South Texas and the Rio Grande Valley during the period, which will produce dry weather across the BRO CWFA. This will be especially true today, as the approach of a weak cold front produces a downsloping effect off of the high terrain of neighboring Mexico.
Dry air will contribute to RH values in the low to mid teens, especially out in western Oklahoma. Clear skies will help overnight lows get into the upper 40s out west, and in the low to mid 50s elsewhere.
Main jet streak is spreading from AZ into NM with a deepening surface cyclone over NE CO. It will remain breezy on the backside of the low, but main thrust of energy will continue to depart.
Today should be another warm day with highs in the lower to middle 80s. Southwest winds will increase as the pressure gradient tightens in response to the large cyclone across the central states.
147 AM EDT Tue Apr 16 2024 (Through Tuesday) High pressure conditions will continue through the rest of today and tonight with mostly clear skies, dry weather, and mild winds persisting through the forecast area.
However, strong subsidence from ridging aloft will help keep rain changes to a minimum. Temperatures today will rise to the low-mid 80s across much of South Florida. Overnight temperatures will drop to the low 60s over the interior and low 70s along the East Coast.
1049 PM CDT Mon Apr 15 2024 Despite plenty of instability there is little in the way of forcing with the warm front as it slowly lifts northward, thus lowered POPs for tonight (20 percent most locations). Britt Mainly dry weather is expected on Wednesday and Wednesday night before a northern stream system brings a cold front through the area.
An upper level low is spinning just north of the Four Corners early this afternoon bringing a cool and breezy day to the area, with little in the way of precipitation. Thanks to the passage of the low, today will be the coldest day of the week with temperatures remaining 5 to 8 degrees below normal. A quieter weather pattern is in store the rest of this week with significantly warmer temperatures.
134 AM EDT Tue Apr 16 2024 High pressure will lead to unseasonably warm and quiet weather through midweek. Warm night underway with lows in the low 60s. The former providing the warmth in the low levels while the latter keeps the column extremely dry. Quiet forecast continues, with the offshore high pressure and Gulf ridging maintaining an influence on the area. Biggest thing to note is an increase in cloud cover this period, due to a weak cold front approaching from the west. Highs Wednesday in the low-to-mid 80s inland, upper 70s at the coast. Lows each night in the low-to-mid 60s.
/19/ (This evening through Tuesday Night) Upper ridging remains in place over the region. The upper ridge will shift east of the region by this evening, and then we will transition into SW Flow aloft ahead of an approaching trough and associated frontal boundary. By tomorrow, the aforementioned trough will start to eject into the Northern Plains.
Current surface analysis shows strong low pressure over north central NE, with warm front extending east-southeast across eastern NE. Cold front extends south across western KS and into the TX/OK panhandles. Upper level analysis shows low over far northwest KS, with trough covering much of the eastern Rockies and Plains. Upper low continues to track east-northeast across NE today and into northwest IA this evening. Strong winds will be the other concern today as pressure gradient tightens to the northwest of the low. An upper low tracks across south central Canada midweek, dragging colder air into the northern Plains. Any snow accumulations look to be pretty light, up to a few inches over the higher Black Hills.
153 AM EDT Tue Apr 16 2024 High pressure passing across the region will provide fair dry weather through Tuesday. Unsettled weather will return by midweek, as a weakening area of broad low pressure moves into the Great Lakes. Expansive high pressure centered over the Canadian prairies will gradually nose across the lower Great Lakes through Tuesday. An expansive storm system over the Upper Mississippi valley will push a warm front northward across the Lower Great Lakes on Wednesday. The main warm frontal boundary is expected to slow, if not completely stall out over the region as it will run up against a staunch ridge over New England.
Across those areas highs today will end up being warmer than yesterday.
108 AM EDT Tue Apr 16 2024 (Rest of today through Tuesday) A rather strong mid level ridge centered over the southwestern Gulf of Mexico will extend eastward towards South Florida through the rest of this afternoon and into Tuesday. At the surface, high pressure centered over the western Atlantic will keep an easterly wind flow in place during this time frame. High temperatures on Tuesday will rise into the lower 80s across the east coast metro areas, and into the mid to upper 80s across Southwest Florida.
431 AM EDT Tue Apr 16 2024 High pressure and upper ridging will build over the southeastern states during the first part of the week resulting in warm and dry conditions. A cold front will bring a chance of showers and thunderstorms late week. The front may stall near the area late in the weekend with cooler temperatures and scattered showers. High pressure is located offshore to our east with a mature mid- latitude cyclone spinning through the Upper Midwest. Ridge ahead of this disturbance is inducing northwest flow aloft across the area, with some passing mainly high level clouds. Temperatures across the region fairly mild in the low to mid 60s with the exception of KAGS where the temperature is 55. For the rest of today, upper heights over the area should increase slightly with the upper ridge shifting eastward.
Mid-level ridging will move east of the state on Tuesday while the potent closed low moves northeast over Nebraska. High temperatures will range from the low 80s northwest and in the higher elevations east to the mid 80s far south and southwest.
A weak cold front will shift into northern Utah Wednesday.
A cold front over BC will move through WA and northern ID on Tuesday afternoon and through southwest ID and southeast OR on Wednesday. Isolated showers in SW Idaho associated with an upper low to our east will end this evening. An upper trough will send a cold front through the region Tuesday night as the trough moves across the northern Rockies. Temperatures trend cooler each day, with valley highs only in the 50s on Wednesday.
Overnight lows will be cooler than this morning but still mild in the 50s and 60s.
309 AM EDT Tue Apr 16 2024 Another weak cold front moves across the region by this evening but with little in the way of noticeable effects other than some gusty winds.
(Today through Wednesday) Key Messages: â¶ Heat indices in excess of 100 degrees Tuesday and Wednesday â¶ Patchy fog possible in the Victoria Crossroads and portions of the Coastal Plains Conditions are expected to be pretty warm today and tomorrow as we are being influenced by an area of high pressure in the Gulf of Mexico. Temperatures will climb to the lower to upper 90s in portion of the Coastal Plains and Brush Country. This front will likely remain to the north and stall over Central Texas due to the influence of the high over the Gulf.
High Resolution CAMs are fairly pessimistic on these storms actually materializing, but there is enough moisture and instability to warrant keeping in the low end PoP chances for the afternoon/evening.
1251 AM EDT Tue Apr 16 2024 A quasi stationary front will linger across the southern parts of the area overnight, before returning northward as a warm front on Tuesday. This front will return northward later today as a warm front. Meso NAM shows effective layer CAPE of over 2000 at CRW and HTS this afternoon with a freezing level around 11000 feet. Models showing a line of showers and thunderstorms in Ohio moving eastward by daybreak Wednesday, ahead of an approaching cold front. A warm front will lift northward Tuesday night into Wednesday, leaving much of the area in the warm sector for Wednesday. That said, CAPE profiles look sufficient for storm activity, particularly SBCAPE and MUCAPE, as temperatures will be in the lower 70s to upper 80s.
Temperatures along the Island Chain are in the lower 70s with dew points in the lower to mid 60s. High pressure continues to dominate across the western North Atlantic. The quiet week of weather is expected to continue as high pressure over the western North Atlantic drives the pattern for the Keys. From synopsis, high pressure will slide into the west- central Atlantic. A secondary high pressure moving in from the the Gulf and eventually over Florida will result in modestly slackened east to southeast breezes for the end of the week and into the weekend.
A longitudinally oriented surface boundary from the base of the low will move east across Texas today and move into the ArkLaTex this evening before becoming east-west oriented and nearly stationary by Wednesday morning.
218 AM EDT Tue Apr 16 2024 High pressure controls the weather pattern today, bringing seasonable temperatures and dry conditions.
A strong cold front will move southward Tuesday night. A closed upper level low over southwest U.
(Today and tonight) High pressure will prevail through tonight with clear skies, dry temperatures, warm temperatures, and breezy winds in the afternoon.
930 PM PDT Mon Apr 15 2024 High pressure building over the Southwest will bring warmer days Tuesday and Wednesday.
- Cooler and drier by week's end/through the weekend. Dew points are in the lower 60s and with temps rising into the low- mid 80s, MUCAPEs peak 1500-2000 J/KG. The boundary lifts northward as a warm front overnight, and we fully warm sector while (low) pcpn chances linger. It will be all hazards severe as helicity ramps up with the low nearing, tracking into/across IA heading thru the overnight. Another threat of storms will come Wednesday as a convective line is modeled to develop along the actual cold front.
1207 AM CDT Tue Apr 16 2024 Windy weather will develop on Tuesday as a cold front approaches the region. A few more storms are possible, mainly across northwest Tennessee, as the cold front moves into the region Wednesday afternoon. The front will slowly push across the region into the weekend with chances for showers and thunderstorms continuing and temperatures turning cooler.
1148 PM CDT Mon Apr 15 2024 (Rest of tonight) Tranquil weather across the Tennessee Valley this evening with high pressure still in control. Overall, very similar conditions to last night (save for the high cloud cover) as light southerly breezes will help maintain this mild air mass.
1158 PM CDT Mon Apr 15 2024 (This evening through Tuesday night) Upper ridging axis curves from the northern plains, through the central midwest, and into the northwest gulf. A low pressure sink is centered just north of the four-corners. As we move through the short term, the low moves over the upper midwest trailing a frontal boundary that should be maturing but forced by the high pressure over the Gulf to sit north of us by the end of the short term.
133 AM EDT Tue Apr 16 2024 High pressure will bring dry and mild conditions through Tuesday.
The next low pressure system approaches the region by the middle of the week. Along the frontal boundary today, expecting some thunderstorms to develop again, but coverage will again be limited and looks to be more confined to west of the Blue Ridge. Rain/storms will be limited east of the Blue Ridge due to a more stable northeast flow. Temperatures today still warm, but a few degrees cooler than yesterday. Key Messages: 1: Scattered showers and storms Wednesday 2: Temperatures well above normal By Wednesday, a warm front just to the north of our area will continue its slow progression northward.
1119 PM EDT Mon Apr 15 2024 -High pressure over the Upper Great Lakes will build Southeast into the region tonight and Tuesday with dry conditions and light wind. A ridge of high pressure at the surface and aloft will extend through the CWA Tuesday, followed by its associated upper ridge axis moving over the Ohio/PA state line around midnight Tuesday night. Cirrus, then sct- bkn Altocu will spread east into the region Tuesday night, to the north of an approaching warm front that will extend from Central Oh through Southern PA.