Aikyam-Lab/Synoptic-Bench huggingface dataset:
304 AM CDT Sat May 2 2020 A weak cold front currently extends down through southern Iowa into NW Missouri from a parent low near the Great Lakes. The cold front will slowly shift to the southeast and set up over northern Missouri as a stationary boundary as we move into Saturday afternoon.
325 AM EDT Sat May 2 2020 Warm and dry high pressure builds into the region through the weekend.
142 AM EDT Sat May 2 2020 High temperatures will soar into the 70s on Saturday as a warm front lifts in. This will be followed by a cold front, which could spark a late afternoon thunderstorm in some locations.
The low pressure crosses Ontario today through tonight, with the aforementioned modest forcing and cold front swinging across our neck of the woods, primarily this morning and early afternoon. Lows tonight will be in the upper 30s in eastern upper, and the low to mid 40s in nrn lower.
1030 PM PDT Fri May 1 2020 Warm weather will continue with highs trending slightly cooler thru the weekend. The Evening Update: Energy from the GOA trof will be mainly moving into the Pac NW late Sat morning, and just brushing Norcal. Instability progs and the high resolution NAM 3km REF prog suggests most of the precip will be over the Shasta Co mtns perhaps as far south of RBL in the Valley. Can't rule out some afternoon T-storms around RDD and the higher terrain of Shasta Co as well. JHM Upper level ridge has flattened, as storm system approaches the Pacific Northwest. Temperatures this afternoon are running a few degrees cooler than yesterday, expect another delta breeze push late this afternoon/early evening with more cooling.
353 AM CDT Sat May 2 2020 Upper level low over southern MAN will move east today. Cooler weather is expected for Sun with less wind.
High pressure over the region will continue clear skies and warm afternoons with cool nights across NE FL/SE GA.
633 AM EDT Sat May 2 2020 Warm and dry high pressure builds into the region through the weekend.
Despite the increasing clouds, afternoon high temperatures today will climb into the lower to mid 80s across the region. This warming trend will continue for Sunday with highs generally 1-2 degrees warmer than what we see on Saturday.
A cold front was working its way through southeast Minnesota/northeast Iowa, with northwest winds in its wake. This cold front should continue to push through the area early this morning. With fairly dry westerly post-frontal flow, dewpoints will fall today and temperatures should be able to rise back into the upper 60s and low to mid 70s, even with the cold front passage this morning. are a little more prevalent than anticipated, temperatures could be slightly cooler than currently forecast, especially across southern portions of the area. By afternoon, daytime heating will allow lapse rates to become quite steep in the low-levels, especially where cloud cover is less.
Much cooler behind the cold front today, with highs held back due to considerable cloudiness. Highs were kept near the previous forecast mainly in the low to mid 60s. On Sunday, a broad trough across the northern and central Great Basin will bring a return southerly flow to the region with steepening lapse rates by late afternoon. As the main upper trough moves across Montana and western Wyoming, showers and thunderstorms will move east across western Nebraska overnight.
619 AM CDT Sat May 2 2020 High pressure is centered over southern Alberta through WY and western SD has a ridge extending through much of the forecast area. This ridge will remain in place through the early evening hours while another area of high pressure sinks across NE.
543 AM EDT Sat May 2 2020 Dry weather can be expected under high pressure today. Rain returns tonight and Sunday with a crossing cold front. Otherwise, dry weather is expected today as high pressure moves east across the region. Maintained the highest POPs south of PIT. Rain should end Sunday night as weak surface ridging builds under a broad upper trough.
Temps range from the mid 50s east, where winds have dropped off, to the lower 60s across the Delta where a light south wind has persisted overnight. Highs today will reach into the lower 80s. A cold front will approach from the north.
Upper ridging over the area and a drier air mass in place will mean a quiet start to the day today, but the next upper level disturbance arrives over the western portions of the region by late this afternoon. The precipitation continues into early Sunday, as a cold front moves through the region.
High pressure will remain in place over the region today, with light winds and mild temperatures.
As the cold front pushes through the area mid level moisture convergence aligns with low and mid level lift, which will be able to generate showers and elevated thunderstorms across the region. High temperatures will peak in the low to mid 80s, about 10 degrees above normal. A slight chance of showers lingers across southeastern Missouri and Illinois through the day Sunday where the cold front is expected to stall.
1017 AM EDT Sat May 2 2020 Moderating temperatures expected through the weekend as high pressure and upper level ridging control the region.
These dry conditions have raised an elevated fire weather concern across the western portions of South Florida each afternoon through this weekend, where minimum relative humidity values will drop into the low to mid 30s.
Sprinkles and maybe some light rain may sneak into northern zones this morning, but expecting a dry day today with warmer temps as ridging tries to build in. During the day, the cold front will sink southward, and increase the chances for showers and thunderstorms mainly for the northern half of the area.
High pressure over the region will lead to a dry and benign weather pattern. These dry conditions have raised an elevated fire weather concern across the western portions of South Florida each afternoon through this weekend, where minimum relative humidity values will drop into the low to mid 30s.
421 AM MDT Sat May 2 2020 Quick moving southwesterly flow continues across the state today as the region remains trapped between ridging to the east and the next approaching longwave trough off the Pacific Coast. Sunday will see a better chance for showers and thunderstorms as the western trough becomes negatively tilted as it sweep northeast across the Pacific Northwest.
/issued 346 AM CDT Sat May 2 2020/ SHORT TERM (Now through Sunday): Deep South Texas will remain under the influence of mid-level ridging through the short term period. At the surface, moderate south-southeasterly winds will prevail with high pressure settled across the eastern Gulf of Mexico and an area of weak low pressure located near the Texas panhandle. The combination of the southerly surface flow and subsidence with the mid-level ridging aloft, will lead to a continued warming trend featuring above average temperatures and humid conditions.
Temperatures are generally ranging from the upper 50s to low 60s and trending warmer than last night with low level southerlies in place. Any appreciable moisture will remain confined to the low levels beneath dry subsidence in a west to northwest flow aloft.
1057 AM EDT Sat May 2 2020 Warm and dry high pressure builds into the region through the weekend.
On Sunday a reinforcing shot of cold air will sag down from Canada and bring slightly cooler temperatures.
Upper level high pressure centered to the southwest of TX will keep rain out of the forecast today and Sunday as moisture will be too limited for any significant precip. Onshore winds will be breezy each afternoon in response to the surface pressure gradient tightening between low pressure across N and W TX and high pressure across the northeastern Gulf of Mexico.
Temperatures before daybreak ranged from the lower 60s to lower 70s, with the coolest readings (63) unofficially measured via a vehicle thermometer within the interior of Big Pine Key. A weak area of high pressure centered over the northern Gulf Coast will slide gradually eastward then park over the Florida Peninsula over the next few days.
635 AM CDT Sat May 2 2020 (Today and tonight) Much of western Oklahoma, along with adjacent parts of Texas, will be on the northern edge of ridging aloft today.
Temperatures will likely reach the upper 80s this afternoon across most of the areas, except the coastal counties where temperatures will stay in the low 80s. Temperatures will be a few degrees warmer for Sunday, with highs across a few areas north of I-10 and west of I-45 reaching 90 degrees.
635 AM EDT Sat May 2 2020 High temperatures will soar into the 70s today as a warm front lifts in. This will be followed by a cold front, which could spark a few afternoon thunderstorms, mainly across the southeast counties.
Stronger 700 mb winds of 40-45 kt move over the east side overnight, but there will be de-coupling, and the stronger winds will be at the ridges, and remain below advisory level for the vast majority of the area.
Sun-Sun night: The meso-high in Nebraska is anticipated to weaken and shift eastward on Sunday as confluent flow aloft terminates over the Northern Plains, flow aloft backs to the SW-WSW atop the Rockies, and southerly low-level flow strengthens on the eastern periphery of a developing lee cyclone -- advecting a plume of richer low-level moisture into the Tri-State during the aft/eve.
Temperatures were holding steady in the low to mid 60s, as southerly breezes kept the lower trop mixed. Highs are expected to reach the low to mid 80s this afternoon, under mostly sunny skies and south winds. Overnight lows tonight will cool into the low to mid 60s.
Highs will be a few degrees warmer than yesterday ranging from the lower 90s in the Kimble/Mason/San Saba counties area to around 102 degrees along our western border.
630 AM CDT Sat May 2 2020 A weak cold front currently extends down through southern Iowa into NW Missouri from a parent low near the Great Lakes. The cold front will slowly shift to the southeast and set up over northern Missouri as a stationary boundary as we move into Saturday afternoon.
917 AM EDT Sat May 2 2020 Dry weather can be expected under high pressure today. Rain returns tonight and Sunday with a crossing cold front. Dry weather is expected today as high pressure moves east across the region. Maintained the highest POPs south of PIT. Rain should end Sunday night as weak surface ridging builds under a broad upper trough.
High temps will range from the lower 80s coastal to mid 80s interior and some upper 80s across portions of Lake county.
948 AM EDT Sat May 2 2020 Dry high pressure is in place across the area today, with clear skies and E/NE winds becoming NW near the coast this afternoon. High pressure will ridge across the waters through the period with winds AOB 15kts and Seas AOB 3 feet through the period.
530 AM EDT Sat May 2 2020 Dry weather can be expected under high pressure today. Rain returns tonight and Sunday with a crossing cold front. Otherwise, dry weather is expected today as high pressure moves east across the region. Maintained the highest POPs south of PIT. Rain should end Sunday night as weak surface ridging builds under a broad upper trough.
An upper trough off the Pacific NW coast will move inland tonight and Sunday which will bring a cold front across the forecast area during the day on Sunday. The front moves to the east Sunday Night while the trough moves north into the Canadian Prairies and becomes a closed low.
High pressure is centered over southern Alberta through WY and western SD has a ridge extending through much of the forecast area. This ridge will remain in place through the early evening hours while another area of high pressure sinks across NE.
In the lower troposphere, northeast winds prevailed across the Central Plains, and the surface wind strength today was a bit stronger than forecast. Any instability to a boundary layer-based parcel will remain on the higher terrain through tonight and into Sunday. The wildcard on Sunday will be degree of stratus cloud cover, since the low level winds will be veered out a little more from the south, drawing up some increased Gulf of Mexico moisture.
It will also allow temps to be a little warmer tomorrow but still pleasant to end the weekend. Maximum temps tomorrow will be in the low to mid 80s across the eastern portions of South Florida and upper 80s to lower 90s across the Gulf coast and inland areas with both sea breezes developing.
12z area soundings support temperatures a little warmer than forecast for the afternoon, so will raise those a few degrees across the board. Low thunderstorm chances increase across NE OK and NW AR tonight and tomorrow, along with slightly cooler temperatures for tomorrow.
This activity, associated with weak/low amplitude mid-level s/wv trough moving eastward over the Red River Valley. (Today and tonight) Much of western Oklahoma, along with adjacent parts of Texas, will be on the northern edge of ridging aloft today.
241 PM MDT Sat May 2 2020 Southwest flow will be present over the Northern Rockies through tonight, with showers and thunderstorms developing ahead of a cold front to arrive late tonight. The cold front will spread rainfall across the region late tonight through Sunday. Model guidances suggest that air behind the cold front moving over the Northern Rockies tonight will be cold enough to cool overnight/morning temperatures to below freezing for a large portion of valley locations.
Expect VFR conditions to prevail across the Rio Grande Valley the rest of the afternoon into this evening as the 500mb ridge across northern Mexico and west Texas continues to provide subsidence across south Texas. /issued 346 AM CDT Sat May 2 2020/ SHORT TERM (Now through Sunday): Deep South Texas will remain under the influence of mid-level ridging through the short term period. At the surface, moderate south-southeasterly winds will prevail with high pressure settled across the eastern Gulf of Mexico and an area of weak low pressure located near the Texas panhandle. The combination of the southerly surface flow and subsidence with the mid-level ridging aloft, will lead to a continued warming trend featuring above average temperatures and humid conditions.
However, despite the available moisture and lift, severe storm potential will remain conditional on the presence on warmer air in the low to mid levels of the atmosphere. Some model soundings are suggesting that a layer of warmer 700 mb temps may keep us capped and limit overall coverage of storms and inhibit strong convective development. If temperatures aloft end up being cooler (like the 12Z HRRR suggests), the threat for strong to severe storms would increase. Showers and storms will still be lingering across portions of central Kentucky as a cold front advances into northern Tennessee Sunday night.
245 PM EDT Sat May 2 2020 High pressure, centered over the western Atlantic, will provide unseasonably warm temperatures through the the first part of the upcoming week.
Sunday will be cooler with numerous mountain showers.
Warmer tonight owing in part to greater near surface moisture.
At the surface, a frontal boundary bisects the CWA in between high pressure over NE and low pressure over northern TX. CAMs continue to develop precip as early as 23Z along the frontal boundary near the I- 70 corridor; however, soundings are dry in the low-levels. Any rain or storms that develop should move out of the area by mid- morning with skies clearing out for the afternoon as high pressure briefly passes over northeast KS. Highs are expected to reach the low to mid 70s.
/Tonight through Saturday/ While it won't necessarily be quiet throughout the forecast period, the weather will be relatively mundane with shower chances and generally cooler conditions arriving.
247 PM EDT Sat May 2 2020 Warm and dry high pressure builds into the region through the weekend.
A few locations have already made it to 84 degrees with most of the area in the lower 80s. A weak cold front will sink into South Missouri overnight. South winds today will transport a Gulf Moisture laden airmass up the Mississippi river valley resulting in Dew points in the low to middle 60s by morning, and mid 60s across the Midsouth by the early afternoon hours.
At the surface, southeast winds will help develop a Denver cyclone in the afternoon, which could help kick off initiate thunderstorms. An upper level trough and jet embedded in the westerly flow aloft will track across the Central Rockies Sunday night.
219 PM CDT Sat May 2 2020 Warm/breezy conditions this afternoon with temperatures running in the lower to mid 80s at most locations. Weak cold front, currently located over east-central KS/west-central MO, will sag south to near the Oklahoma/Kansas State line tonight.
Overnight lows tonight will be in the lower 60s west to upper 50s east while highs tomorrow will reach the lower to mid 80s.
High pressure across the area is keeping things dry and will continue to do so through Sunday afternoon. The high pressure ridge does flatten a bit Sunday and moves east but it should still expecting dry conditions.
/ISSUED 542 AM MDT Sat May 2 2020/ Upper ridging over the area and a drier air mass in place will mean a quiet start to the day today, but the next upper level disturbance arrives over the western portions of the region by late this afternoon. The precipitation continues into early Sunday, as a cold front moves through the region.
Dry and subsident conditions will continue across the north central Gulf Coast region through Sunday underneath weak ridging aloft. Lows tonight will range from the mid to upper 50s inland and in the lower to mid 60s near the immediate coast and beaches.
104 PM CDT Sat May 2 2020 The upper ridge will flatten out over the area tonight.
1117 AM MDT Sat May 2 2020 Quick moving southwesterly flow continues across the state today as the region remains trapped between ridging to the east and the next approaching longwave trough off the Pacific Coast. Sunday will see a better chance for showers and thunderstorms as the western trough becomes negatively tilted as it sweep northeast across the Pacific Northwest.
The short-lived ridging should keep us dry for Sunday.
CWA on the north side of a cold front that has slipped south into west central Colorado this afternoon. Has been pretty stable with temperatures in the low 50s.
320 PM CDT Sat May 2 2020 Sfc analysis this afternoon shows high pressure lingering over the sern CONUS, keeping us in an onshore low-level flow which has led to dewpoints up to the 60s across the forecast area today. Water vapor imagery shows weak ridging aloft remaining in place. Warm, dry (but muggier) conditions will linger into the early work week as high pressure to our east remains in control while weak ridging holds aloft.
A cold front will approach the area, and the moisture/instability ahead of it will lead to increasing coverage of showers and thunderstorms this afternoon. The showers and thunderstorms will continue along and ahead of a cold front as it moves through the area this evening. Additional showers and thunderstorms along a cold front will move into southeast Oregon after 00Z this evening and spread to the West Central Mountains after 03Z.
High pressure centered over north Florida will slide east tonight, maintaining the moderate easterly breezes across the island chain.
This activity, associated with weak/low amplitude mid-level s/wv trough moving eastward over the Red River Valley. Much of western Oklahoma, along with adjacent parts of Texas, will be on the northern edge of ridging aloft today.
Temperatures will continue to warm into the lower 80s today but no other weather concerns are expected.
Otherwise, showers continue across the lower MO river corridor this afternoon, but these are expected to taper off by mid evening. A cold front will drop into the northeastern portions of our CWA toward 12Z on Sunday, bisecting out area by afternoon. This will keep cooler conditions over east central SD/southwestern MN, where highs will only top out just either side of 70.
Expect chilly overnight lows near freezing in the north, and in the upper 30s south. Expecting mainly rain showers elsewhere, with winds sustained at 15 to 20 mph and high temperatures in the lower 60s north central to lower 70s southwest.
This will result in strong heating across the area especially the Concho Valley where temperatures should climb into the lower 100s or possibly higher.
The southern border regions have the highest likelihood of stronger thunderstorms. Sunday will see a better chance for showers and thunderstorms as the western trough becomes negatively tilted as it sweep northeast across the Pacific Northwest.
140 PM EDT Sat May 2 2020 Warm and dry high pressure builds into the region through the weekend.
VFR conditions expected to persist through the period as high pressure remains in control. Chattanooga Airport, TN 58 83 63 81 62 / 0 0 20 20 20 Knoxville McGhee Tyson Airport, TN 58 82 59 77 59 / 0 20 50 10 30 Oak Ridge, TN 58 82 59 77 57 / 0 30 60 10 40 Tri Cities Airport, TN 53 80 55 75 52 / 0 40 80 10 40.
329 PM CDT Sat May 2 2020 A closed upper low in northwest Ontario will open into a sharp short wave trof tonight as it drops to the tip of the Arrowhead. A cold front with the trof will move to the Borderland late tonight and bring much colder air to the region. The cold front drops into northwest Wisconsin on Sunday, then dissolves in the afternoon as dry high pressure arrives. Elevated fire weather conditions are expected due to the gusty winds and the dry air arriving with the high pressure. Temps will be significantly cooler however. The cold, dry high pressure remains in charge Sunday night.
Weak mid-lvl frontogenesis will stretch into northern Iowa this morning focusing the highest PoPs through mid-day. Anticipating dew points mixing into the lower 30s early this afternoon. Guidance continues to trend a bit faster and further southwest with a cold front moving southward towards daybreak. Sunday: The aforementioned cold front is now expected to surge and stall along a line from Huron to Spencer by mid-day Saturday. Further southwest, temperatures will again climb into the lower 70s.
1136 AM CDT Sat May 2 2020 A weak cold front currently extends down through southern Iowa into NW Missouri from a parent low near the Great Lakes. The cold front will slowly shift to the southeast and set up over northern Missouri as a stationary boundary as we move into Saturday afternoon.
The primary band of upper westerlies will remain well north of the region through Sunday, with sprawling high pressure in place at the surface.
High temperatures Sunday afternoon are forecast to be in the low to mid 90s across the Hill Country and along and east of I-35/I-37, and in the upper 90s to near 100 along the Rio Grande, Winter Garden, and Brush Country regions to the west and southwest.
(This evening through Sunday) As deep/strong cyclone shifts eastward across the northern Plains and southern Canada today, cold front will progress through central and southern Plains tonight and Sunday. The 12Z model guidance is cooler (10 to 15 degF) across western, northern, and central Oklahoma for Sunday, with more post-frontal cloud cover expected. Rain chances may increase some Sunday evening and night as stalled front begins to return north as a warm front and weak lift commences.
314 PM CDT Sat May 2 2020 High pressure will remain over the region tonight through much of the day Sunday, keeping conditions dry and mild.
This evening a mid level trough moving across northern Missouri will be the focus for a few elevated showers and perhaps a thunderstorm while farther south across central Missouri an 850mb cold front will be the main focus for elevated showers and thunderstorms tonight with MUCAPE near 1000 to 1500 J/kg. A transitory ridge will move across the area Sunday with cooler temperatures in the low to mid 70s.
Sunday will be cooler than today as a result, with highs in the upper 60s to mid 70s.
137 PM EDT Sat May 2 2020 Rain returns tonight and Sunday with a crossing cold front.