Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 311 PM CDT Fri Jun 5 2020/ Showers and thunderstorms will continue this afternoon and evening across portions of West TN, most of North Mississippi and East Central Arkansas where temperatures remain in the 90s and dew points in the low to mid 70s. For the weekend it should be mostly sunny and hot with daytime temperatures into the low 90's.
By tomorrow, Tropical Storm Cristobal will continue to move north across the Gulf of Mexico as upper ridging shifts east into the Middle Mississippi River Valley.
731 PM EDT Fri Jun 5 2020 Ongoing passage of a cold front combined with a subtle low-level boundary located just north of the Metro terminals have produced weak isolated showers confined mainly just north of the Metro area, with secondary showers wedged between KMBS to KFNT. The latest HRRR solutions are somewhat puzzling not giving any credit to the lower to middle 60 dewpoints that are surging across western Lower Michigan in tow of this initial shower and thunderstorm activity. Low level thetae scours out rapidly 03-06Z as a cold front pushes across the area. Strong support within the models for surface based ridging this weekend.
1040 PM EDT Fri Jun 5 2020 A cold front will sweep southeast across the area Saturday morning, followed by breezy conditions and much lower humidity.
Expect increasing chances for showers and thunderstorms tonight as a weak low pressure system crosses Arizona.
For now the highest impacts for the forecast area will be felt across lower Acadiana and the lower Atchafalaya Basin.
740 PM EDT Fri Jun 5 2020 Cooler and drier conditions will work into the region for the weekend.
843 PM EDT Fri Jun 5 2020 A cold front will sweep southeast across the area Saturday morning, followed by breezy conditions and much lower humidity.
604 PM MDT Fri Jun 5 2020 With the Tri-State area situated beneath a tightening height gradient between a deep upper level trough over the Western CONUS and a deep upper level ridge over the MS River Valley -- active/dynamic weather is anticipated throughout the weekend.
916 PM EDT Fri Jun 5 2020 A cold front will move southeast through the Mid Atlantic region Saturday.
1038 PM EDT Fri Jun 5 2020 Coverage of shower and thunderstorm activity will increase tonight with a cold frontal passage and remain possible throughout the day on Saturday.
802 PM CDT Fri Jun 5 2020 A weak cold front will continue to sink southward overnight, holding stationary near the Ohio Valley this weekend. While temperatures in central Illinois behind this front will not be significantly cooler, with high temperatures still well into the 80s this weekend, less humid conditions can be expected. Dry weather is in the forecast for tomorrow as a high pressure ridge builds into the area for the weekend. Relatively cooler air will also advect into the area with overnight lows in the middle 60s and afternoon highs tomorrow in the middle 80s. Warmer lows tonight and highs tomorrow will be across southeast IL.
920 PM EDT Fri Jun 5 2020 Mild, dry conditions will continue through the weekend with a crossing cold front. Meanwhile, deepening low pressure will cross Quebec tonight, pushing a cold front into our region after 06Z. The cold front will complete its passage by the early afternoon hours of Saturday.
As the upper low moves closer to the Washington coast, precipitation moves onto the coast tonight. The upper low continues to wobble south offshore into Saturday, and although the best instablity is from the Cascades eastward, a cold pool aloft with temperatures dropping down to -27C moves into the west side and have put in a slight chance of thunderstorms for the entire forecast area.
But, shower chances will continue overnight, with the highest chances west of I-95 and from Osceola County northward. Overnight lows staying seasonable, in the low to mid 70s. The highest coverage expected for KMCO, KISM, KSFB and KLEE.
However, forecast looks on track with strong system impacting the are through the weekend resulting in showers and cooler temperatures.
Very little protective cloud cover in place early this morning to keep radiation in check as cold air falls off the higher terrain and filters ever so slowly southwest down the Great Valley. Today will be another great day with a mostly dry northerly flow in the presence of a retreating Eastern Seaboard upper level trough. Applied just a slight chance pop for a shower or thunderstorm in a small part of the higher terrain across Southwest Virginia and Northeast Tennessee during the afternoon as this boundary shifts south.
150 AM EDT Sat Jun 6 2020 Aviation - Showers and Storms Late Afternoon/Early Evening - Seasonal and Dry this Weekend, then Hot To Start The Workweek - Extratropical System Nears the Great lakes Region Mid Week - Showers and Storms Possible Late Afternoon/Early Evening - A few isolated showers and storms are moving through the area this afternoon as a surface cold front continues to move through lower MI. - Seasonal and Dry this Weekend, then Hot To Start The Workweek - A pleasant weekend is in store as mid- and surface-level ridging moves in place.
330 AM EDT Sat Jun 6 2020 Synopsis/Discussion/Marine - Gusty Northwest winds along the Lakeshore - Fair and Dry this Weekend, then Hot To Start The Workweek - Potent Cold front along as an Extratropical System Nears the Great lakes Region Mid Week - Gusty Northwest winds along the Lakeshore High Pressure will build over the region. - Fair and Dry this Weekend, then Hot To Start The Workweek With the high building over the area, mild weather will dominate through the first part of the upcoming week.
1254 AM CDT Sat Jun 6 2020 We will remain under the influence of upper level ridging for the short term, which should keep things dry. Surface front stalled near the CWA southern border will begin moving north as a warm front overnight. As the warm front moves north, some cumulus could form along the warm front, but should remain scattered with lack of moisture. Any convection along the cold front to the west Saturday afternoon and evening should remain mostly west as the front will move very little.
Upper high over the Plains will continue to work eastward, and help keep the area dry this weekend but hot.
High pressure slowly shifts further east as upper level trof continues to move into the Pac NW area.
216 AM MDT Sat Jun 6 2020 With the Tri-State area situated beneath a tightening height gradient between a deep upper level trough over the Western CONUS and a deep upper level ridge over the MS River Valley -- active/dynamic weather is anticipated throughout the weekend.
134 AM EDT Sat Jun 6 2020 Cooler and drier conditions will work into the region for the weekend. Meanwhile, a cold front stretching from Michigan into Illinois will press southeastward, making it into the northwest portion of the CWA by sunrise.
This low humidity paired with breezy winds will result in elevated fire danger today.
Upper air analysis at 00Z Saturday showed the axis of a strong upper level ridge extending from Mexico up through west Texas into the central High Plains. To the west, an upper level low pressure system off the coast of British Columbia was tracking south toward the Pacific Northwest. Another upper low system was now moving onshore over southern California.
1108 PM EDT Fri Jun 5 2020 A cold front will sweep southeast across the area late tonight and Saturday morning, followed by breezy conditions and much lower humidity.
158 AM EDT Sat Jun 6 2020 A weak trough low pressure trough will remain nearby early this morning. A cold front will then move through on Saturday.
1122 PM EDT Fri Jun 5 2020 A cold front will sweep southeast across the area late tonight and Saturday morning, followed by breezy conditions and much lower humidity.
That should impact temps a bit with a cooler day in store as highs hold mainly in the 70s along with continued comfortable humidity as low level ridging noses in from the north.
Upper level ridging will lead to a push of WAA and moisture in the lower levels today. This will allow temperatures to climb into the lower to mid 90s over eastern KS and western MO with a plume of higher dewpoints (71-74F) to ride up an axis of surface convergence.
451 AM EDT Sat Jun 6 2020 A cold front will sweep southeast across central Pennsylvania this morning into early afternoon.
148 AM EDT Sat Jun 6 2020 A cold front will move southeast through the Mid Atlantic region Saturday.
Weak high pressure situated across the Appalachians was providing a light southerly flow across the region. An upper ridge over the central Plains begins to build an axis southeast through the TN valley Saturday.
1132 PM MDT Fri Jun 5 2020 With the Tri-State area situated beneath a tightening height gradient between a deep upper level trough over the Western CONUS and a deep upper level ridge over the MS River Valley -- active/dynamic weather is anticipated throughout the weekend.
Slightly cooler air aloft, plus a little more high cloud cover (mainly west) should mean high temperatures a degree or two cooler than yesterday.
1125 PM CDT Fri Jun 5 2020 A weak cold front will continue to sink southward overnight, holding stationary near the Ohio Valley this weekend. While temperatures in central Illinois behind this front will not be significantly cooler, with high temperatures still well into the 80s this weekend, less humid conditions can be expected. Dry weather is in the forecast for tomorrow as a high pressure ridge builds into the area for the weekend. Relatively cooler air will also advect into the area with overnight lows in the middle 60s and afternoon highs tomorrow in the middle 80s. Warmer lows tonight and highs tomorrow will be across southeast IL.
140 AM EDT Sat Jun 6 2020 A cold front will sweep southeast across the area late tonight and Saturday morning, followed by breezy conditions and much lower humidity.
258 AM CDT Sat Jun 6 2020 A summertime high pressure system was building over the nations midsection this morning keeping conditions over the Ozarks warm and humid.
A ridge of high pressure will build in across the Southern Plains and into the Midwest today before slowly sliding eastward.
Showers and thunderstorms will continue over northeast Arizona through tonight and early Saturday as a weak low pressure system crosses Arizona.
337 AM EDT Sat Jun 6 2020 A cold front will sweep southeast across the area late tonight and Saturday morning, followed by breezy conditions and much lower humidity.
351 AM CDT Sat Jun 6 2020 Elongated upper ridge will continue to sit over the CWA today while a unseasonably deep upper low moves eastward across the western CONUS and TS Cristobal moves toward the Gulf Coast. High temperatures will be a few degrees cooler today, but will still be several degrees above average and peak in the 90s area wide.
414 AM EDT Sat Jun 6 2020 High pressure continues to extend across the peninsula as Tropical Storm Cristobal moves northward through the southern Gulf of Mexico.
358 AM EDT Sat Jun 6 2020 A cold front crossing the area this morning with bring a few showers.
330 AM EDT Sat Jun 6 2020 Noticeably cooler today as an upper level trough digs into the Eastern Great Lakes, with mostly northwest confluent flow over the Central Great Lakes. The 500 MB cold (-20 C) pool tracks through Lake Huron, with the tight temp gradient extending south over the Thumb region, with even 700 MB temps slipping just below freezing. Could be just enough diurnal cape (200-300 J/kg) generated to support isolated showers underneath that mid level cold pool, as there is also an inverted trough noted.
359 AM CDT Sat Jun 6 2020 High pressure ridge will nose southward into Illinois during this weekend, bringing fair and less humid weather.
Kenosha and Racine areas still have dewpoints in the lower 60s, but they will eventually drop too. Low pressure sitting over the Northern Plains will eject some energy into MN to bring showers across the Northland. Low temperatures will generally be in the lower 50s. Increasing southeast winds with a strong mid level ridge overhead and increasing 925-850mb temps will give us highs a notch warmer than today, ranging from around 70 lakeshore to lower 80s well inland.
620 AM CDT Sat Jun 6 2020 A ridge of high pressure extending south out of Canada through the mid Mississippi Valley will shift east into the Great Lakes region and the Ohio Valley today through Sunday. Meanwhile, a strong upper level ridge currently over the Great Plains will drift east, and an anti-cyclonic circulation will cut off right over Missouri on Sunday morning. This is a couple of degrees warmer than the consensus of guidance, likely influenced by bias corrected guidance. However, the warmer solution makes sense given the strength of the upper level anti-cyclone.
In the wake of our passing weather system from yesterday, much cooler weather will prevail.
Clouds over eastern and south sections will gradually dissipate this morning with increasing sunshine as upper ridging strengthens over the region. Expect high in the lower 90s this afternoon which combined with dewpoints in the lower 70s will produce heat index values near 100 degrees. The upper ridge will prevail with dry weather. Lows tonight will be mild and range from the upper 60s in the cooler spots to the mid 70s at some locations across the Delta.
As for the fcst through the remainder of the day, continuing to watch a weak cold front slide into/through the OH Valley before approaching northeast TN and southwest VA later in the day. That said, did keep the previous slight chance pops across the mountain/ridge tops given modest heating expected today. Chattanooga Airport, TN 91 70 92 70 91 / 0 0 10 0 10 Knoxville McGhee Tyson Airport, TN 90 69 90 66 91 / 0 0 0 0 10 Oak Ridge, TN 90 68 91 66 92 / 0 0 0 0 10 Tri Cities Airport, TN 86 63 88 57 89 / 10 10 0 0 0.
Temperatures will be warm again today with highs in the lower 90s in the west and upper 80s to near 90 degrees in the east. Combined with humidity, temperatures can feel warmer than the actual values(heat indices near 100 degrees for some locations) so its suggested when doing outside activities to stay hydrated and be cautious.
942 AM EDT Sat Jun 6 2020 Scattered showers and perhaps a thunderstorm will develop late this afternoon and evening, especially across the North Country as an upper level disturbance and cold front cross the region. A bubble of dry air and strong subsidence is moving into the eastern Great Lakes in the wake of an exiting cold front, allowing skies to rapidly clear. Upper level trough deepens across the central/eastern lakes region today as a small impulse dives into the eastern lakes late this afternoon and evening. This will drive a secondary cold front/trough through the area late this afternoon, supporting additional chances for showers and scattered thunderstorms.
/issued 351 AM CDT Sat Jun 6 2020/ Elongated upper ridge will continue to sit over the CWA today while a unseasonably deep upper low moves eastward across the western CONUS and TS Cristobal moves toward the Gulf Coast. High temperatures will be a few degrees cooler today, but will still be several degrees above average and peak in the 90s area wide.
747 AM EDT Sat Jun 6 2020 Aviation - Gusty Northwest winds along the Lakeshore - Fair and Dry this Weekend, then Hot To Start The Workweek - Potent Cold front along as an Extratropical System Nears the Great lakes Region Mid Week - Gusty Northwest winds along the Lakeshore High Pressure will build over the region. - Fair and Dry this Weekend, then Hot To Start The Workweek With the high building over the area, mild weather will dominate through the first part of the upcoming week.
An upper trough will bring unsettled conditions to the region this weekend.
An upper level ridge will remain in place across the region helping to contribute to the continued heat wave we've been experiencing. Another hot day with temperatures in the lower to mid 90s.
Upper level ridging will lead to a push of WAA and moisture in the lower levels today. This will allow temperatures to climb into the lower to mid 90s over eastern KS and western MO with a plume of higher dewpoints (71-74F) to ride up an axis of surface convergence. The upper level ridge and low level features will shift slightly eastward on Sunday, leading to another warm day with temperatures into the 90s. This will offset the highest temperatures and dewpoints, keeping us just below or at 100F for heat indices and heat advisory criteria.
A cold low pressure trough will bring substantially cooler temperatures, blustery onshore winds, occasional showers and isolated thunderstorms this weekend mainly north of Mendocino County. Low cloudiness across the area has lifted substantially this morning ahead of an approaching cold trough of low pressure. There is also a vorticity max with the trough as well. There may be some small hail with these showers and thunderstorms as the freezing levels are fairly low, however it doens't look cold enough for there to be accumulation on the roadways. Even at the highest peaks 2 to 4 inches is the most expected. By Sunday morning, showers will start to taper off as the upper level trough starts to pull out of the area.
A summertime high pressure system was building over the nations midsection this morning keeping conditions over the Ozarks warm and humid. Similar weather is expected for Sunday with highs back into the low 90s.
Inland areas will be warmer, with readings likely topping out in the low to mid 80s with ample sunshine.
A ridge extending towards the FL peninsula from the Atlantic will lift north today as Tropical Storm Cristobal also lifts north but over the Gulf of Mexico. Even though we won't see direct effects from the storm locally, the system is widely expanding to the east of the center, and in combination with the ridge just to our north, a deep area of moisture will remain over our area.
A ridge of high pressure will build in across the Southern Plains and into the Midwest today before slowly sliding eastward. The previously mentioned ridge will build eastward on Sunday keeping conditions dry, and temps a tad warmer reaching the lower 90s.
Satellite images show the trough responsible for the convective storms yesterday has moved east of the Colorado River. Lots of low clouds has developed along the Tehachapi mountains and Sierra foothills due an upslope NW flow behind the trough. Additional short wave energy will deepen a trough across CA tonight and Sunday.
Moisture rich boundary layer continues to flow through the region, and dew points have been hovering near a disgusting 80 degrees with temperatures in the lower 80s. Expect breezy to windy conditions along the Keys with winds tending strongest in the Lower Keys. Guidance, in agreement with satellite trends, suggest drier air through the lower levels will gradually push into the Keys area today and tonight. Again, the Lower Keys will have the best chance for receiving precipitation. Winds will relax substantially through the day Sunday and Sunday night as Cristobal nears then makes landfall along the Gulf Coast and broad Atlantic ridging builds in behind.
There has not been much change to the thinking in regards to the storm as it remains a fairly disorganized due to the interaction with dry air and a mid-level trough.
/issued 344 AM CDT Sat Jun 6 2020/ SHORT TERM (Today through Sunday): Deep South Texas and the Rio Grande Valley will be sandwiched between 500 mb high pressure centered over northern Mexico and Tropical Cyclone Cristobal transitioning north over the Gulf of Mexico.
Small Craft Advisories remain in effect for the coastal waters west of the Seven Mile Bridge, while Small Craft Should continue to Exercise Caution to the east. An Atlantic ridge axis will build back across Florida Sunday and Sunday night, allowing breezes to diminish.
711 AM EDT Sat Jun 6 2020 A cold front crossing the area this morning with bring a few showers. A cold front is crossing the region this morning. Upper level trough deepens across the central/eastern lakes region today as a small impulse dives into the eastern lakes. This will drive a secondary cold front/trough through the area this afternoon, supporting additional chances for convection.
Upper high over the Plains will continue to work eastward, and help keep the area dry this weekend but hot. Highs today and Sunday will be in the low to mid 90s, with heat index values in the upper 90s/around 100 possible. Would not be surprised to see a few storms pop up, but with the upper high building in, more widespread development looks unlikely attm. By Sunday afternoon, the high will be overhead, so Sunday may be a degree or two warmer for some. Overall though, with highs in the low to mid 90s and dewpoints around 70, its going to be a very hot weekend.
Low pressure over the NE Pacific waters is diving southeast and will bring rain and cooler conditions to the forecast area today and Sunday. The trajectory of this system is bringing less moisture with it compared to the south to north trajectory of the low last weekend.
Upper air analysis at 00Z Saturday showed the axis of a strong upper level ridge extending from Mexico up through west Texas into the central High Plains. To the west, an upper level low pressure system off the coast of British Columbia was tracking south toward the Pacific Northwest. Another upper low system was now moving onshore over southern California. On Sunday, a broad, deep upper trough develops over the western states as the upper low moves onshore. This will help shunt the upper level ridge farther east into the Mississippi Valley with southwest flow aloft over the central High Plains.
218 PM EDT Sat Jun 6 2020 Breezy and less humid conditions will prevail tonight behind a diffuse cold front moving east of the area.
/Tonight through Sunday Night/ Confidence: Medium to High Main concern overnight will be some chance of showers or isolated thunderstorms over the east and northeast as the warm front aloft continues to retreat. High pressure over Wisconsin continues to move east as low pressure and an associated boundary west will advance north tonight, keeping most of the convection over the Dakotas heading into Minnesota. Lows tonight will remain in the lower 60s east to the lower 70s over the west as milder air and more moisture advect northward. Sunday still looks rather warm and breezy and all trends continue to point toward a day in the upper 80s northeast to the lower 90s over central and western sections.
313 PM EDT Sat Jun 6 2020 Breezy and less humid conditions will prevail tonight behind a diffuse cold front moving east of the area.
Northeasterly winds will remain through Sunday as the high is centered north of the area. The air coming off the lakes along with a residual thermal trough (850mb temps mid around 7C) will keep temps moderated Sunday as highs reach only into the mid 70s for most locations.
312 PM CDT Sat Jun 6 2020 Convection from this morning has pretty much dissipated with the decrease in speed of the low-level jet as it moved out of the CWA. With the theta-e ridge nearby, I was a little hesitant to go completely dry tonight, considering what happened this morning, so I did go with some small POPs in our west late tonight.
254 PM EDT Sat Jun 6 2020 A cold front will push south of the area this evening.
As for the fcst through the remainder of the day, continuing to watch a weak cold front slide into/through the OH Valley before approaching northeast TN and southwest VA later in the day. That said, did keep the previous slight chance pops across the mountain/ridge tops given modest heating expected today. High pressure dominates allowing modest heating and sustained cu development this afternoon beneath mid/high clouds, thus carried MVFR at TRI for bkn cu, while CHA/TYS remain sct. CDG Chattanooga Airport, TN 70 93 70 91 73 / 0 10 0 10 20 Knoxville McGhee Tyson Airport, TN 68 92 66 91 72 / 0 0 0 10 10 Oak Ridge, TN 67 92 66 92 72 / 0 0 0 10 10 Tri Cities Airport, TN 63 86 57 89 66 / 10 0 0 0 0.
The current synoptic setup places central Indiana in an area of strong subsidence with high pressure over the Upper Midwest and a cold front pushing farther south. Elsewhere, a broad upper trough is making its way through the northeast U.