Aikyam-Lab/Synoptic-Bench huggingface dataset:
Dewpoints have dropped into very comfortable levels of the lower 60s at most island communities, with tempreatures generally in the lower 60s. The short-term forecast through the end of the work week is rather routine, with high pressure currently centered near the Florida Panhandle slowly sliding eastward. For the end of the week and into the first part of the weekend, subtle increases in boundary layer moisture will only get measurable rain chances up to slight levels, as the high slides into the western Atlantic.
559 AM CDT Tue Apr 18 2023 (Today through Wednesday Night ) Another quiet day of weather is expected across the region as high pressure, currently located over the Florida panhandle, continues to dominate. Light south to southwest surface winds continue on the western periphery of this feature which has kept temperatures several degrees warmer versus this time last night and will help pull highs into the upper 70s to lower 80s today.
With favorable radiational cooling conditions anticipated, especially farther east in the area, the forecast low temps were nudged down a degree or two in some areas from the previous forecast with upper 40s possible again in the cooler spots.
on Tuesday which is going to favor dry weather for the day as convection will be inhibited by the high. Winds will turn out of the NE as the high drifts further east and eventually into the Western Atlantic on Wednesday. Temperatures will be in the low to mid 80s across the region.
Current upper air analysis and water vapor imagery depict troughing over the western US with southwesterly flow bringing midlevel moisture over WY and far western SD. The broad western trof marches eastward through today with a jet max moving over WY/western SD by this evening.
Today through Wednesday night A trof will be moving across Nevada today, bringing light snow showers and winds.
601 AM CDT Tue Apr 18 2023 (Today and tonight) Warm again today with breezy southerly winds due to lee trough and increasing pressure gradient. In addition to the low chance for a few storms later today, increased fire weather conditions will be possible in parts of northwest OK. With the increasing dewpoints, warmer temperatures are expected tonight with lows only dropping into the mid 50s to low 60s.
314 AM PDT Tue Apr 18 2023 Another late winter storm pushes through this morning bringing much cooler temperatures and snow showers. Warmer and drier conditions return for the end of the week into the weekend. With the passing of the cold front this morning, colder temperatures are once again on their way.
745 AM EDT Tue Apr 18 2023 Aviation - Unseasonably cool through tonight - Brisk wnw flow caa will continue today and result in high temps only reaching the lower to middle 40s. A few flurries will linger through the early morning hours before ending as the upper trof axis continues to move further east. Partial clearing should develop this afternoon as upper ridging begins to build in from the west. Skies will clear tonight as the upper ridge builds overhead. - Chance of showers and storms Wed/Thur - Isentropic upglide and increasing elevated instability north of a warm front will bring potential for scattered showers and a few thunderstorms Wednesday and Wednesday night.
959 AM EDT Tue Apr 18 2023 Dry weather along with slightly warmer temperatures and gusty winds are expected today, creating increased fire danger.
High pressure conditions, dry weather, and mostly clear skies will persist through today and overnight with winds shifting about to become more out of the northeast as the center of high pressure rotation drifts further towards the east. High temperatures will rise up into the upper 70s and lower 80s over inland areas and in the lower to mid 70s along the coast.
1021 AM EDT Tue Apr 18 2023 Dry northwest flow aloft and surface ridging will remain across the region today. Discussion: Upper heights will begin to rise today as troughing lifts northeast through New England. Despite increased influence from surface ridging, still expect another breezy afternoon today.
Sunny and dry conditions prevail this morning as the cold front positioned just beyond the FL Straits over northern Cuba has ushered in much drier air to the region. Wind forecast continues to keep speeds below 15 mph across the interior, where the lowest RH values will reside.
Locally gusty winds will linger this morning, mainly over the higher elevations of the Sierra Nevada where gusts up to 45 mph are still possible. Temperatures will be trending cooler today, before high pressure builds back in later in the week. Temperatures are currently running up to 2 to 15 degrees cooler than this time yesterday morning.
755 AM EDT Tue Apr 18 2023 The cold front that moved through the area yesterday is now located over the western Atlantic. Cooler and drier air has filtered into the region in the wake of the cold front and will stick around for the next 24 hours. Temperatures on Tuesday will top out around average in the low to mid 80's with overnight lows in the 50's and 60's. The high pressure center moves off the Carolina coastline by Wednesday bringing a shift in the winds to the east, which will also bring a warm up by mid-week.
508 AM PDT Tue Apr 18 2023 A low pressure system moving inland through California will maintain stronger onshore flow and a deeper marine layer into Wednesday with gusty west winds in the mountains and deserts and well below average high temperatures.
Afternoon highs should reach the mid 80s, around 5 degrees warmer than today. Though conditions will improve slightly compared to today, minimum relative humidity values in the lower 20s may lead to fire weather concerns between noon and 6 PM Wednesday afternoon.
(This afternoon through Wednesday Night) High pressure is set up over the Southeast US and that is bringing us quiet and dry conditions. High pressure will continue to influence our weather on Wednesday. Highs will be a few degrees warmer than today pushing into the 80s and we will see low relative humidty once again in the afternoon.
The low level jet axis and upper short wave energy will push east shortly after Midnight, helping to drag a cold front through the region and bringing an end to our convective threat. Conditions on Wednesday will start off quite breezy in the morning with northwesterly winds gusting 30 to 40mph ushering cooler air into the region. Any convective threat Wednesday afternoon looks to initiate across eastern Nebraska and outside of our area, though good mid level FGEN and deformation associated with more short wave energy rotating around the deep trof over the Rockies may bring some showers to the region mainly along and south of Interstate 80. Ensemble guidance is in good agreement in moving a cold, deep upper trof across the High Plains through the end of the week.
341 PM EDT Tue Apr 18 2023 Warmer temperatures are in store the next couple of days, but not before we deal with some frost tonight as temperatures dip into the upper 20s to mid 30s.
120 PM EDT Tue Apr 18 2023 A warming trend is expected through the week as high pressure will continue dominating the region. The next chance of rain arrives this weekend as high pressure departs and a cold front moves through the region. Today and tonight high pressure will control the region while becoming more centered over the area late this morning and early afternoon. With ridging building over the eastern US afternoon high temperatures will continue to climb with upper 70s in the northern Midlands to low 80s in the southern Midlands and CSRA. Even so with the ridging overnight lows will be several degrees warmer with low 50s across the forecast area.
1155 AM CDT Tue Apr 18 2023 (Rest of Today) Tranquil weather across the Tennessee Valley this morning, with high pressure in control of the weather. Clear/sunny conditions and light southerly flow will make for a much warmer day as highs will run about 8-10 degrees higher than yesterday.
-Freezing temperatures are in the forecast this weekend. By tomorrow afternoon, a cold front will be draped across north-central KS as low pressure deepens in southwest Kansas. A dryline will extend from the low southward through OK and TX. Destabilization of the atmosphere will occur as temps warm and dew points reach the low 60s in eastern KS. Thunderstorm initiation ahead of the cold front is possible by 23Z or 00Z (6 PM or 7 PM).
Widespread near freezing and below freezing temperatures are likely tonight and Wednesday night before temperatures rebound to warmer territory for the end of the week into the weekend.
Temperatures throughout the Keys are mostly near 80 degrees with a few places in the lower 80s. Marine platforms have been hovering between 5 to 10 knots with Carysfort observing the highest winds at 13 knots. The forecast for the next several days will continue to be mostly driven by the aforementioned high pressure in the discussion section above.
1230 PM CDT Tue Apr 18 2023 (Today through Wednesday Night ) Another quiet day of weather is expected across the region as high pressure, currently located over the Florida panhandle, continues to dominate. Light south to southwest surface winds continue on the western periphery of this feature which has kept temperatures several degrees warmer versus this time last night and will help pull highs into the upper 70s to lower 80s today.
1243 PM EDT Tue Apr 18 2023 Dry weather along with slightly warmer temperatures and gusty winds are expected today, creating increased fire danger.
118 PM CDT Tue Apr 18 2023 (Today and tonight) Warm again today with breezy southerly winds due to lee trough and increasing pressure gradient. In addition to the low chance for a few storms later today, increased fire weather conditions will be possible in parts of northwest OK. With the increasing dewpoints, warmer temperatures are expected tonight with lows only dropping into the mid 50s to low 60s.
Look for sustained winds of 15 to 20 mph with gusts to near 30 mph in advance of an approaching H5 upper low.
(Tonight) High pressure in control of the weather across the Tennessee Valley this afternoon, resulting in clear and calm conditions. Still, some light southerly flow and a little bit more moisture should help to keep lows 8-10 degrees higher than last night -- eventually bottoming out in the upper 40s (with a few locations remaining in the lower 50s).
The eastern half of the region should see little cloud cover, as upper level ridging develops across the SE CONUS, westward into the Lower Mississippi Valley Wednesday.
125 PM PDT Tue Apr 18 2023 Cooler temperatures dominate the area behind a cold front that sweep through California today. The cold front also introduced windy conditions across the area today and are expected to diminish on Wednesday. The cooler temperatures in the short term will give way to above normal conditions this weekend. The passage of the cold front across Central California provide the area with a cool down and breezy to windy conditions. In the meanwhile, breezy to windy conditions will be felt across the region as some of the mountain ridge-tops experience winds gusting to 55 mph or greater. While a few clouds may linger into Wednesday, a strong ridge pattern will shift on the West Coast later this week allow for a good warm-up of temperatures.
430 PM EDT Tue Apr 18 2023 High pressure over the lower Mississippi Valley region will shift east into the Carolinas and Mid-Atlantic states through the end of the work week.
Temps will top out this afternoon in the low 80s for inland areas, and cooler near the coast in the mid 70s.
(Rest of today through Wednesday) A generally dry next short term period as we head into midweek as high pressure attempts to build in and then hold over the region. Drier air will help limit rain chances while provide some relief from the warmer temperatures.
410 PM EDT Tue Apr 18 2023 High pressure will prevail over the region through mid week providing plenty of sun and warm temperatures. A cold front will move through the area this weekend bringing showers and thunderstorms.
352 PM CDT Tue Apr 18 2023 (Issued 352 PM CDT Tue Apr 18 2023) Tonight through Wednesday night: Mostly clear skies will continue into the evening under high pressure. Surface based instability will be lacking with the surface warm front parked just south of the WI/IL state line tomorrow. and the surface warm front eventually starts to lift into the area. The warm front will remain south of the state line through the day Wednesday, with some northward progress possible by later Wed night. Kept temps tomorrow on the cooler end of guidance, as easterly winds on the north side of the front will keep it cool, especially with the influence of Lake Michigan.
930 AM PDT Tue Apr 18 2023 A low pressure system moving inland through California will maintain stronger onshore flow and a deeper marine layer into Wednesday with gusty west winds in the mountains and deserts and well below average high temperatures.
While the cold front is long gone and traveling over Southern California, northwest flow prevails over the Bay Area and the Central Coast, with a cooler air mass in place.
The pattern over the northern Rockies will remain one of a broad trough with some smaller scale weather systems moving through. Today, an upper level low will break off from the main trough over the region and move east. As it does, it will leave western Montana in a col, which is another way saying we'll be in the doldrums between to low pressure systems.
However, this is all underneath weak upper level ridging, so it's a very conditional chance for storms to get going and produce severe weather, and coverage is expected to be isolated if they do develop.
Cooler temperatures will follow tomorrow with northwesterly breezes. Winds will shift around to the north tonight as a dry cold front progresses through the region. This will usher in a much cooler airmass for Wednesday with afternoon highs 5-10 degrees below normal.
122 PM EDT Tue Apr 18 2023 With clearing skies and increasing sunshine today, warmer temperatures than the past couple of days are expected, but they are still below normal for this time of year. Tonight, another cold night with lows in the low to mid 30s is expected.
This will bring cooler than normal temperatures along with isolated to scattered snow showers.
Instability will increase this afternoon as a trough moves in from the west, and scattered showers are forecast after around 2 PM MDT.
Where breaks in the clouds have occurred, drier air has mixed to the surface with dewpoints ranging from the middle 30s in the more extreme cases to the lower 50s. Overall, with high pressure exiting stage east, think the low levels will begin to moisten through the short term period. On Wednesday the low level pressure gradient modestly strengths leading to a bit higher surface winds.
200 PM EDT Tue Apr 18 2023 Dry northwest flow aloft and surface ridging will remain across the region today. Discussion: Upper heights will begin to rise today as troughing lifts northeast through New England. Despite increased influence from surface ridging, still expect another breezy afternoon today.
Snow showers continue on Wednesday, along with cooler temperatures.
207 PM MDT Tue Apr 18 2023 There is currently a trough axis tracking over NE UT and NW CO, and it will continue to move northeastward this evening. The jet associated with this trough is directly overhead, which is contributing to strong winds. The trough is pushing a cold front into the area so showers and storms have started to develop along that front. Highs tomorrow will be upwards of 30 degrees cooler up north compared to today, and 15 degrees cooler down south.
Warmer temps are on the horizon for late week. High pressure will gradually build and sunshine will become dominant from south to north through the day with some lingering stratocumulus.
(Rest of Today) Tranquil weather across the Tennessee Valley this morning, with high pressure in control of the weather. Clear/sunny conditions and light southerly flow will make for a much warmer day as highs will run about 8-10 degrees higher than yesterday.
100 PM MDT Tue Apr 18 2023 Current water vapor and upper air models show the upper ridge centered over the Dakotas this afternoon, with a closed Upper Low over the Great Lakes region and another low over the north PAC. Cold front slides through the region this afternoon and evening and overall pattern becomes more active as southwest flow aloft sets up.
(Tonight through Tuesday) Upper flow to become more S-SW tomorrow with surface features in the form of a dry line and cold front sharpening to the west.
However, given the mostly clear conditions, especially across AL/GA, and the dry airmass we can expect another chilly evening with lows generally around 50 with the cooler spots in the upper 40s. While this will bring back some low-level moisture, the warmer temperatures (in the mid 80s) and dry mid-level air mixing down in the afternoon will still keep conditions fairly dry.
Ridging aloft builds over the area through the period in response to the next trough building over the western CONUS through tonight. Tonight expect lows to increase into the low to mid 50s.
316 PM EDT Tue Apr 18 2023 High pressure will be the dominant feature through the week.
Good radiational cooling conditions overnight under weak surface ridging along with dry and cold airmass with sfc dew points in the mid/upper 20s will result in several hours of temperatures below freezing. - Rain, Thunder Wed through Thu Night - Return flow moisture and warm advection develops Wednesday and model soundings show potential for elevated thunderstorms by the afternoon north of a sfc warm front.
(This evening through Wednesday) A benign weather pattern featuring high pressure and subsidence will be in play across the region through Wednesday. The large diurnal swing in temperatures will be evident on Wednesday too as temperatures climb from the 40s and lower 50s in the morning, to the low and mid 80s during the afternoon.
Discussion: Currently, dry airmass and surface ridging producing mostly sunny sky except across parts of southwest Virginia and northern Tennessee. Dry west to northwest flow aloft will gradual building of an upper ridge combined with continued surface ridging will produce dry conditions through Wednesday. Warm temperatures expected the rest of this work week under a strong ridge. A cold front this weekend should bring precipitation and much colder air to the region. Discussion: Upper ridging will be located across the Southeast CONUS mid-week with an amplifying trough across the Rockies. Late week, the ridge will begin to shift eastward along the East Coast with the upper-level trough shifting eastward across the Great Plains and Mississippi Valley.
1229 PM CDT Tue Apr 18 2023 Summary: Quiet weather today as High pressure resides over the region.
Trough that brought light Valley/foothill showers and mountain snow showers is shifting east into the Great Basin and Rockies this afternoon.
705 PM EDT Tue Apr 18 2023 High pressure over the lower Mississippi Valley region will shift east into the Carolinas and Mid-Atlantic states through the end of the work week.
1000 PM EDT Tue Apr 18 2023 High pressure over the lower Mississippi Valley region will shift east into the Carolinas and Mid-Atlantic states through the end of the work week.
1037 PM EDT Tue Apr 18 2023 High pressure will prevail over the region through mid week providing plenty of sun and warm temperatures. A cold front will move through the area this weekend bringing showers and thunderstorms.
Wednesday, the surface cyclone will move eastward through Kansas, continuing the strong southerly and southwesterly winds throughout Oklahoma and northern Texas.
240 PM PDT Tue Apr 18 2023 A low pressure system moving inland through California will maintain stronger onshore flow and a deeper marine layer into Wednesday with gusty west winds in the mountains and deserts and well below normal high temperatures.
Gehring (Issued 352 PM CDT Tue Apr 18 2023) Tonight through Wednesday night: Mostly clear skies will continue into the evening under high pressure. Surface based instability will be lacking with the surface warm front parked just south of the WI/IL state line tomorrow. and the surface warm front eventually starts to lift into the area. The warm front will remain south of the state line through the day Wednesday, with some northward progress possible by later Wed night. Kept temps tomorrow on the cooler end of guidance, as easterly winds on the north side of the front will keep it cool, especially with the influence of Lake Michigan.
The current temperature trend was slightly cooler in several locations across Central Alabama. As we approach saturation in a few places, dew forms and further dries out the lower levels. The high drifts eastward on Wednesday allowing temperatures to warm up into the 80s by afternoon. 75 Previous short-term discussion: (This evening through Wednesday) A benign weather pattern featuring high pressure and subsidence will be in play across the region through Wednesday. The large diurnal swing in temperatures will be evident on Wednesday too as temperatures climb from the 40s and lower 50s in the morning, to the low and mid 80s during the afternoon.
636 PM CDT Tue Apr 18 2023 (Tonight) High pressure in control of the weather across the Tennessee Valley this afternoon, resulting in clear and calm conditions. Still, some light southerly flow and a little bit more moisture should help to keep lows 8-10 degrees higher than last night -- eventually bottoming out in the upper 40s (with a few locations remaining in the lower 50s).
708 PM EDT Tue Apr 18 2023 Warmer temperatures are in store the next couple of days, but not before we deal with some frost tonight as temperatures dip into the upper 20s to mid 30s.
748 PM EDT Tue Apr 18 2023 A warming trend is expected through the week as high pressure will continue dominating the region. The next chance of rain arrives this weekend as high pressure departs and a cold front moves through the region. High pressure continues to build in over the region as deep upper ridging steadily fills in behind an occluded trough over the Northeast US. With the ridging aloft building in, the pressure gradient will weaken further overnight and we should generally go calm everywhere. Areas that typically radiate well may fall into the low 40's.
730 PM EDT Tue Apr 18 2023 High pressure over the lower Mississippi Valley region will shift east into the Carolinas and Mid-Atlantic states through the end of the work week.
A negatively tilted trough over the area has continued to progress to the east today with scattered showers continuing along coast. Cold air advection continuing will bring near to below freezing low temperatures tonight. SOuthern Mendocino has the highest chance of frost formation but uncertainty remains too high to issue any kind of product there with extensive cloud cover remaining visible on satellite. Ridging will begin to building heading later into the week. As we head into the weekend, increasingly strong ridging will bring hot, dry, and almost summer like conditions, especially for inland areas.
Dominant high pressure centered N of the area will produce clear and dry conditions overnight with lows in the mid/upper 50s over the interior and low/mid 60s at the coast.
351 PM MDT Tue Apr 18 2023 Current water vapor and upper air models show the upper ridge centered over the Dakotas this afternoon, with a closed Upper Low over the Great Lakes region and another low over the north PAC. Cold front slides through the region this afternoon and evening and overall pattern becomes more active as southwest flow aloft sets up.
(The rest of tonight) South winds continue to gust 20-30 mph in many areas this evening, with a few gusts over 40 persisting in the high terrain of southeast OK. (Wednesday through Tuesday) Upper flow to become more S-SW tomorrow with surface features in the form of a dry line and cold front sharpening to the west.
710 PM EDT Tue Apr 18 2023 High pressure will be the dominant feature through the week.