Aikyam-Lab/Synoptic-Bench huggingface dataset:
127 PM EDT Thu May 2 2024 - Normal to above normal temperatures through the week, with highs in the 70s and 80s, cooler near Lake Michigan.
High temps will be a touch cooler tomorrow with the scattered showers and cloud cover around with highs in the upper 70s to low 80s.
931 PM CDT Thu May 2 2024 - Fog(locally dense?) probabilities have increased for Friday morning in northeast Iowa with fresh rainfall, wet soils, clearing skies, and winds dropping off as high pressure builds in.
Beginning tonight, ridging aloft will dry the area out and make for mostly clear skies through Friday morning. With those clear skies, the passage of the cold front will allow temperatures tonight to be cooler than last night, but lows should still stay above freezing for all areas west of the Cascades.
(This evening through Friday) The weather today will be characterized by a 500 mb ridge positioned over the eastern CONUS. Temperatures this afternoon are forecast to rise to between 8-12 degrees above climatological normals, mainly ranging from the mid 80s in far north Georgia to the low 90s in portions of central Georgia. As this disturbance approaches, a cold front will advance through the Midwest, gradually slowing as it advances towards Kentucky. With dewpoints in the low 60s and high temperatures forecast to be in the low to mid 80s in north Georgia and upper 80s in central Georgia, there will be ample instability to support thunderstorms, especially in the afternoon.
822 PM EDT Thu May 2 2024 High pressure along the Southeast coast will be in control of the weather across the region tonight. The area of high pressure will be moving away from the area on Friday allowing for more moisture to move into the region.
Outflow boundaries from earlier severe storms have gusted to near the I-57 corridor as of 925pm but the synoptic cold front is still off to our west, likely near the Mississippi River, but not well defined in surface obs due to the earlier convection.
1056 PM EDT Thu May 2 2024 A backdoor cold front passes through overnight followed by high pressure building down the New England coast through Friday.
804 PM EDT Thu May 2 2024 Low pressure will exit south of the Gulf of Maine early tonight.
The HREF continues to show pockets of heavier rain developing ahead of the cold front that will move in late from Wisconsin. - Mild with several chances for showers/storms A persistent long wave trough over the Rockies will send a steady stream of short waves toward the Great Lakes through the period.
Low pressure is moving north-northeast and near Mayville ND at 00z. Area of moderate rain ahead of the low moving north and into the northern valley.
(The rest of tonight) Scattered showers and storms have developed this evening across northeast Oklahoma in the vicinity of a cold front that currently stretches from near Miami to near Oilton. Friday looks to be the most tame day of the forecast period, with most locations staying dry as a dryer airmass filters in behind the cold front this evening.
712 PM EDT Thu May 2 2024 (Through Friday) Ridging aloft will persist through the near term with high pressure building in at the surface. Tonight, with ridging aloft, a warm inversion above the surface should persist resulting in some fog formation along the Emerald Coast pushing somewhat inland. High pressure off the Atlantic will lead to tranquil boating conditions through the period.
628 PM CDT Thu May 2 2024 (This evening through Friday night) For tonight, the atmosphere has stabilized somewhat behind the latest cold frontal passage which has moved through the forecast area. The best chance for precipitation is expected later Friday night as the cold front moves southward across the region.
519 PM EDT Thu May 2 2024 High pressure will be in control of the region through tonight with patchy fog and stratus during the early morning and sunrise hours.
Consequently, there is some lower to mid level ridging aligned just to our west. A ridge across the far southeastern United States will maintain moderate to fresh breezes through the overnight period.
654 PM EDT Thu May 2 2024 -Warm/dry weather with lower humidity continues for Friday as high pressure slides to the northeast.
Instability continues to increase on the south side of a warm front which is advancing northward through the afternoon. 3in) will aid in more widespread shower and embeded thunderstorm development out ahead of the cold front. With the frontal passage and rain/cloud cover, highs will only top out in the low 70s. Expect more showers and storms as the activity moves toward northern Indiana tonight and as a cold front approaches from the west.
Definitely a quieter evening over SFL compared to yesterday thanks to encroaching ridging and associated warmer temperatures aloft. (Rest of today through Friday) High pressure and ridging in the low to mid levels continues to dominate the weather pattern across South Florida, keeping a typical easterly regime in place. Outside of a rouge shower or thunderstorm, prevailing conditions will be quite nice with partly cloudy skies and highs in the lower to mid 80s. Across interior and southwest portions of the area, afternoon highs will be a bit warmer in the upper 80s.
637 PM CDT Thu May 2 2024 Updated aviation portion for 00Z TAF issuance - Scattered showers and a few thunderstorms will develop ahead of a cold front tonight.
819 PM MDT Thu May 2 2024 - A cold front will move through the region on Friday with another round of shower activity in the mountains and isolated thunderstorms over the southern Nebraska panhandle. - Mainly dry and warmer conditions are anticipated for the weekend.
(Rest of tonight) A weak cold front will continue to approach the Tennessee Valley overnight in response to a mid/upper low shifting into the Great Lakes. With high pressure shifting east of the area, southerly flow has helped to advect in Gulf moisture as seen by the mid 60s dewpoints in the latest 02z observations.
(Through Friday) Ridging aloft will persist through the near term with high pressure building in at the surface. Tonight, with ridging aloft, a warm inversion above the surface should persist resulting in some fog formation along the Emerald Coast pushing somewhat inland. High pressure off the Atlantic will lead to tranquil boating conditions through the period.
As the low clouds give way to sunshine, instability will increase. A line of better organized thunderstorms is expected to move through the Panhandles overnight along a cold front.
Sky forecast was adjusted accordingly, with low temperatures down another 1-2 degrees given a bit more radiational cooling under weak high pressure overnight. High pressure moves east of the area on Friday, resulting in a southeasterly return flow. This will bring slightly warmer conditions to the area. A slow moving cold front will approach the area Friday night, which will allow for increasing clouds.
A slow moving frontal system will enter the area early Saturday morning and bring rain showers and cooler conditions for this weekend.
High pressure channeling down the eastern slopes of the Appalachians will maintain dry wx over the majority of the CWA (eastern 2/3) through 00Z Sat with max POPs to the west of the US219 corridor. The 24hr maxTchange will be considerably cooler over the central and southeastern ridge/valley region this afternoon with fcst highs giving back 7-15 degrees from yesterdays near- record to record breaking temps. Shower activity should eventually expand west to east through tonight as an increasingly moist east/southeast flow brings widespread low clouds and perhaps some fog/mist on the ridgetops.
1209 AM CDT Fri May 3 2024 (The rest of tonight) Scattered showers and storms have developed this evening across northeast Oklahoma in the vicinity of a cold front that currently stretches from near Miami to near Oilton.
Under influence of ridging aloft another seasonably warm day is on tap this afternoon with inland locations making another push toward 90F while coastal spots are cooled by the onshore flow with readings registering in the mid/upper 80s.
Instability continues to increase on the south side of a warm front which is advancing northward through the afternoon. 3in) will aid in more widespread shower and embeded thunderstorm development out ahead of the cold front. With the frontal passage and rain/cloud cover, highs will only top out in the low 70s.
123 AM EDT Fri May 3 2024 High pressure along the Southeast coast will be in control of the weather across the region tonight. The area of high pressure will be moving away from the area on Friday allowing for more moisture to move into the region. Deep moisture convergence coinciding with an upper level trough will drive widespread showers and isolated thunderstorms Saturday.
This will continue northeast with the low as we see the bulk of these showers taper off by sunrise with clear skies for areas south of HWY 200 potentially giving the opportunity for some to catch a glimpse of the aurora tonight under a waning crescent moon. Rain in the eastern fcst area (Bemidji) remains less than desired as that area up to Baudette keeps missing the higher rain totals. UPDATE Low pressure is moving north-northeast and near Mayville ND at 00z. Area of moderate rain ahead of the low moving north and into the northern valley. Another, slow moving, upper low traverses the Northern Plains Friday into Saturday, bringing a chance for showers and isolated thunderstorms to portions of the region Friday afternoon through around midday Saturday.
221 AM MDT Fri May 3 2024 KEY MESSAGES: - Night-time temperatures will drop below freezing in many areas tonight.
1004 PM CDT Thu May 2 2024 - Fog(locally dense?) probabilities have increased for Friday morning in northeast Iowa with fresh rainfall, wet soils, clearing skies, and winds dropping off as high pressure builds in.
1233 AM CDT Fri May 3 2024 (Rest of tonight) A weak cold front will continue to approach the Tennessee Valley overnight in response to a mid/upper low shifting into the Great Lakes. With high pressure shifting east of the area, southerly flow has helped to advect in Gulf moisture as seen by the mid 60s dewpoints in the latest 02z observations.
Rain in the eastern fcst area (Bemidji) remains less than desired as that area up to Baudette keeps missing the higher rain totals. UPDATE Low pressure is moving north-northeast and near Mayville ND at 00z. Area of moderate rain ahead of the low moving north and into the northern valley. Another, slow moving, upper low traverses the Northern Plains Friday into Saturday, bringing a chance for showers and isolated thunderstorms to portions of the region Friday afternoon through around midday Saturday.
(Friday through Saturday night) Low level high pressure ridging will remain stubborn for Friday, which will overall tend to limit convective coverage despite a consistent sea breeze influence and adequate layer moisture. Expecting the highest coverage to be over more inland southeast GA and the Suwannee River area, dropping off further east and southeast as the sea breeze boundary penetrates further inland. With the higher coverage of showers and t'storms Saturday, highs will be overall lower - in the mid to upper 80s inland and low 80s at the coast.
The low chance for severe weather is expected to end by midnight and give way to another muggy night across all of South Texas.
Synoptic overview and current conditions: Upper level analysis and water vapor imagery show an upper level low pressure system located along the Montana / Saskatchewan border with an associated trough axis becoming negatively tilted over the northern plains. Broad southwesterly flow aloft was occurring on the southern side of this trough from the southwest U.
Low level moisture will continue to advect into the forecast area which will maintain surface dewpoints in the mid-60s in the Rolling Plains and southeast Texas Panhandle and mainly in the 50s for areas on the Caprock which again will prime the lower atmosphere for thunderstorms. This low level cloud cover is expected to continue to expand in coverage this morning with the low level moisture advection.
359 AM EDT Fri May 3 2024 A backdoor cold front will cross the area today before sinking south this weekend.
Highs in the mid to upper 80s expected across areas south of I-20, while cloud cover and rain will keep temperatures slightly cooler north of I-20, with highs in the lower to middle 80s.
249 AM MDT Fri May 3 2024 Today southeast Montana will still be under the influence of a 500mb trough keeping temperatures on the cool side in the 50s F for most. Cyclonic flow on the back side of the low will keep some precipitation chances (20%) and clouds across much of the area today. Isobars will have a decent gradient on the back side of the low bringing some breezy conditions during the day as well. Saturday will see winds switch from northwest to southerly as an upper level low starts to impact the region. Upper level ridging will keep things dry on Saturday.
1131 PM EDT Thu May 2 2024 Low pressure will exit south of the Gulf of Maine early tonight. High pressure then builds across the region later tonight through Saturday.
Mid to upper level riding is expected to weaken a bit and shift further south with the ridge axis closer to the FL Peninsula. High temperatures today are forecast a tiny bit cooler than yesterday due to the increase in cloud cover and the shifting of the ridge axis to the south.
A transient trough and associated storm systems well to the north will flatten a bit the ridge today, with pressure gradients again becoming a little tighter in the afternoon hours.
Most of the guidance keeps the highest chances across souther parts of the state.
206 AM EDT Fri May 3 2024 High pressure builds down the New England coast through Friday. The high retreats farther offshore on Saturday as a frontal system approaches from the west.
122 AM EDT Fri May 3 2024 Definitely a quieter evening over SFL compared to yesterday thanks to encroaching ridging and associated warmer temperatures aloft. (Rest of today through Friday) High pressure and ridging in the low to mid levels continues to dominate the weather pattern across South Florida, keeping a typical easterly regime in place. Outside of a rouge shower or thunderstorm, prevailing conditions will be quite nice with partly cloudy skies and highs in the lower to mid 80s. Across interior and southwest portions of the area, afternoon highs will be a bit warmer in the upper 80s.
1243 AM CDT Fri May 3 2024 (This evening through Friday night) For tonight, the atmosphere has stabilized somewhat behind the latest cold frontal passage which has moved through the forecast area. The best chance for precipitation is expected later Friday night as the cold front moves southward across the region.
321 AM EDT Fri May 3 2024 (Today through Saturday) High pressure at the surface will continue through the period. 500mb analysis shows ridging along the eastern seaboard with SW flow across much of GA.
A narrow ridge-trough couplet is over the eastern US and the Bahamas. The Keys will remain on the dry and stable side of this trough complex.
(Today and tonight) Scattered showers/storms will continue into the morning hours with the highest chances in east central and southeast parts of the fa.
Slightly above normal temperatures are expected today and tomorrow, with afternoon highs peaking in the low to mid 90s across the lower deserts.
643 AM CDT Fri May 3 2024 (Today and tonight) Scattered showers/storms will continue into the morning hours with the highest chances in east central and southeast parts of the fa.
High temperatures both days will be in the mid 70s to lower 80s with lows mainly in the 60s, with upper 50s over the higher terrain of W/NW/N-Cntrl AR.
1029 AM EDT Fri May 3 2024 High pressure will build across the area today into Saturday.
607 AM CDT Fri May 3 2024 - Chance (20-40%) of showers and thunderstorms will occur this afternoon with the highest chances occurring over southeast MO. - Stronger storms expected tomorrow ahead and along a cold front. Though, cold front moving through north-central Missouri should help to clear out the fog/drizzle and improve visibilities as it continues to push south. Temperatures today will be in the mid to upper 70s even after the cold front moves through. As for Saturday, another cold front will push through the area bringing another chance (70-90%) for thunderstorms starting in the morning and continuing into the afternoon and evening hours.
(Today through Saturday) High pressure at the surface will continue through the period. 500mb analysis shows ridging along the eastern seaboard with SW flow across much of GA.
A series of upper-level disturbances will move across the Lower Mississippi Valley over the next 7 days.
ACTIVE WEATHER RETURNS THIS WEEKEND AS A WEATHER SYSTEM DROPS DOWN BRINGING SHOWERS, MOUNTAIN SNOW, ISOLATED THUNDERSTORMS, GUSTY WINDS AND MUCH COOLER TEMPERATURES. ACTIVE WEATHER WILL RETURN TO THE REGION VERY LATE TONIGHT, AS A WEATHER SYSTEM DROPS DOWN FROM THE GULF OF ALASKA BRINGING SHOWERS, MOUNTAIN SNOW, ISOLATED THUNDERSTORMS, GUSTY SOUTHWEST WINDS AND MUCH COOLER TEMPERATURES ON SATURDAY.
Rain and storm chances remain on the low side, so will not include any mention of SHRA or TSRA at any of the terminals at this time. Most of the guidance keeps the highest chances across souther parts of the state. Area of high pressure remains in control over the Gulf waters through the period.
Following yesterday's all day rain in much of eastern Iowa (thankfully drought areas included), and the afternoon barrage of severe storms in far eastern McDonough county Illinois, today we're in store for a very pleasant day as the slow moving cold front and moisture along it exit to the east before sunrise. Some fog will potentially be found over the area through 8AM, but the majority of today looks to be light winds, mostly sunny skies, and mild temperatures in the lower to mid 70s as high pressure moves through our northern counties. Increasing clouds are expected overnight, as another progressive upper trof approaches from the west.
A ridge of high pressure will be moving over the region today and lingering through Saturday.
The old 850mb trough near the coast is still hanging tough although weak and this trough is somewhat mirrored at the sfc. Saturday on the other hand, will show a bit less activity for our area, this will be due to a cold front moving south from the high plains causing things to flow northward including our weak coastal troughiness.
High pressure channeling down the eastern slopes of the Appalachians will maintain dry wx over the majority of the CWA (eastern 2/3) through 00Z Sat with max POPs to the west of the US219 corridor. The 24hr maxTchange will be considerably cooler over the central and southeastern ridge/valley region this afternoon with fcst highs giving back 7-15 degrees from yesterdays record challenging to record breaking temps. Shower activity should eventually expand west to east through tonight as an increasingly moist east/southeast flow brings widespread low clouds and perhaps some fog/mist on the ridgetops.
Southwest winds will be breezy today due to a tightening pressure gradient between low pressure over northern Ontario and high pressure over Michigan's Lower Peninsula.
Additionally, above normal temperatures will continue through the short-term with highs generally ranging from the low to mid 90s, except for the 80s near the coast, today and Saturday.
Lingering moisture and warmer-than-average temperatures will make for a balmy afternoon. 96 (Today through Saturday) High pressure at the surface will continue through the period. 500mb analysis shows ridging along the eastern seaboard with SW flow across much of GA.
402 AM CDT Fri May 3 2024 - Chance (20-40%) of showers and thunderstorms will occur this afternoon with the highest chances occurring over southeast MO. - Stronger storms expected tomorrow ahead and along a cold front.
632 AM CDT Fri May 3 2024 A series of upper-level disturbances will move across the Lower Mississippi Valley over the next 7 days.
Weak high pressure off the Carolina coastline continues to ridge across Florida and will dominate the weather today with mostly rain- free conditions. Rain and storm chances remain on the low side, so will not include any mention of SHRA or TSRA at any of the terminals at this time. High pressure off the Carolina coastline ridges across Florida and into the Gulf of Mexico and remains in control over the gulf waters through the period.
High pressure remains in control over the region, with mostly to partly sunny skies forecast for today. Favorable boating conditions continue as high pressure remains over the local area.
336 AM MST Fri May 3 2024 Slightly above normal temperatures are expected today and tomorrow, with afternoon highs peaking in the low to mid 90s across the lower deserts.
(This evening through Saturday) The low stratus cloud deck is beginning to clear out early this afternoon across the South Plains and far southwest Texas Panhandle. The low clouds will continue break across the remainder of the area this afternoon. With the early clearing, temperatures are quickly warming into the 80s while temperatures under the cloud cover remain much cooler in the 60s to lower 70s.
The overnight lows will trend in the low to mid 70s along the coast while interior locations dip into the mid to upper 60s.
252 PM EDT Fri May 3 2024 Scattered showers and thunderstorms will develop this weekend as due to several upper level disturbances and localized low pressure.
Temperatures continue warming through the low to mid 80s across the forecast area with cumulus also developing as weak southeast to southerly flow pushes moisture into the area. High temperatures this afternoon will generally be in the mid to upper 80s with lows tonight in the low to mid 60s. The axis of an upper trough is expected to continue sliding eastward, putting us in a southwest flow aloft regime for the next couple of days. At the surface, high pressure off the coast remains generally in place, allowing for southeast surface winds across the forecast area.
AC3 A series of upper-level disturbances will move across the Lower Mississippi Valley over the next 7 days.
1227 PM CDT Fri May 3 2024 (Today and tonight) Scattered showers/storms will continue into the morning hours with the highest chances in east central and southeast parts of the fa.
Lows tonight will be seasonably mild in the low to mid 60s.
- Cooler than in recent days, but temperatures are forecast to be above normal through the next 7 days. Large upper low/trough configuration remains over the far northern US and south-central Canada with an active jet stream from the Central Plains to Upper Great Lakes region. Meanwhile, upper ridging remains persistent along the East Coast, and will begin to move offshore Saturday night as the aforementioned upper low begins to move northeast toward eastern Canada at that time. Lows tonight will range from the mid-50s in the cooler sheltered valleys to lower 60s elsewhere.
Main ideas continue to be sunny and warmer wx today, then increasing clouds and southeast/southwest winds and warmer again on Saturday ahead of an approaching north Pacific cold front.
For the overnight, a weak cold front will attempt to drop in the from the north before stalling over northern Ohio. A wet period is indicated as persistent moisture advection couples with waves of low pressure.
With a weak cold front staying north of the area tomorrow, the CWA is not in a thunderstorm outlook area for day 2. Additionally, above normal temperatures (a few degrees above average) will continue through the short-term with highs generally ranging from the lower to mid 90s, except for the 80s near the coast, Saturday.
Saturday, High pressure will bring a pretty spectacular spring weather with lots of sun and temperatures hovering around 70 degrees.