Aikyam-Lab/Synoptic-Bench huggingface dataset:
During the evening and overnight there will be some decent isentropic lift in the mid levels as a warm front moves into the area. The problem will be lack of moisture in the low levels. The NBM is completely dry, but feel that even with the low level moisture deficit there could a few sprinkles. During the afternoon, convection may develop ahead of an approaching cold front from the north. With the increasing clouds and the arrival of the warm front, the NBM's low temperatures look reasonable tonight.
240 PM CDT Fri May 1 2020 Elevated fire weather concerns late this afternoon with trough working through the area and gusty southwest winds transitioning to northwest.
Tonight and Saturday Showers ahead of a warm front will move across the area during the late afternoon and nighttime hours.
Pleasant and dry conditions are expected through tomorrow as high pressure settles in across the area in the wake of yesterday's cold front.
High resolution convection allowing models (HRRR/NAM NEST) suggest that isolated high-based convection will develop along the Palmer Divide invof Limon-Akron around 21-23Z this afternoon, presumably in assoc/w low-level convergence, warm advection, and weak low-level frontogenesis on the N-NE periphery of a developing lee cyclone. A lee cyclone will develop Sat afternoon as the aforementioned wave emerges onto the High Plains. Guidance suggests that a meso-high -- emanating from widespread upstream convection /evaporative cooling/ over WY/NE, extending southward through the Tri-State area as an inverted ridge on Saturday -- will shift the low-level baroclinic zone further south, fostering lee cyclone development over the OK/TX Panhandles (vs. An upper level ridge moves across the central U.
1214 PM EDT Fri May 1 2020 A deep upper level trough will drift east across the region this afternoon, followed by a ridge of high pressure that will build into the state Saturday.
1245 PM CDT Fri May 1 2020 High pressure will remain over the area through the period bringing widespread VFR conditions to the area. High pressure will shift east/southeast today, with southerly flow setting up.
Low temperatures for tonight are expected to be in the lower 50s for inland areas and in the mid to upper 50s along the coastline and near the St Johns River.
155 PM EDT Fri May 1 2020 Some residual showers can be expected this afternoon as low pressure moves to the Mid-Atlantic. High pressure will build across the area and provide generally fair weather Saturday.
355 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
1251 PM EDT Fri May 1 2020 A deep upper level trough will drift east across the region this afternoon, followed by a ridge of high pressure that will build into the state Saturday.
NAM the highest on overnight precip amounts with close to. Much cooler Saturday with highs in the 50s with rain shield over the area in northeast upslope flow.
Lows tonight will be in the 60s, with highs Saturday ranging from the low to mid 90s far southeast sections, mid and upper 90s over central sections, and 100 to 102 degrees across the Big Country and western Concho Valley.
335 PM CDT Fri May 1 2020 Mid-afternoon sfc analysis shows high pressure centered over far sern LA which has allowed an onshore low-level flow to resume over the forecast area. Water vapor imagery shows our nwrly flow aloft lingering behind the departing ern CONUS trof. with a ridge axis noted moving into the Plains States. However ridging aloft will maintain nil POPs.
122 PM EDT Fri May 1 2020 High pressure is building into the area today, with cooler and drier air filtering down the state.
118 PM EDT Fri May 1 2020 High pressure will dominate today and this upcoming weekend, resulting in a warming trend across the area.
Temperatures were already in the lower to middle 90s for most of the area as of 1820Z, and we still have some time to go before they peak near the triple digit mark later this afternoon.
249 PM CDT Fri May 1 2020 Low pressure in southern Manitoba with a band warm air advection mid/high level clouds moving across the dvn cwa. The low levels quite dry so some sprinkles were reaching the ground. Meanwhile, a cold front was moving southeast across the northern Plains. Saturday: Weak cold front (more of a wind shift line) will push across the cwa during the morning, with northwest winds behind the front.
231 PM EDT Fri May 1 2020 Warm and dry high pressure will gradually build into the region through the weekend, providing a significant warmup.
1147 AM CDT Fri May 1 2020 Latest surface map shows a cold front now approaching Rugby south to Jamestown. The cold front is pushing through central ND this morning. A cold front currently located along western ND will push through the area by late afternoon. Today will be cooler than yesterday with temperatures in the 60s and low 70s. Behind the cold front northwest winds will pick up around 25 mph with gusts around 35 mph. A brief upper-level ridge will build in this weekend. With dry westerly winds afternoon RH values will likely fall into at least the low 20s.
High pressure continues to build in from the south as the longwave trough pushes further to our east. Overnight lows will bottom out in the low to mid 40s for most places, which is around 5 degrees below normal. Also, even warmer temperatures tomorrow as the high shifts to our west and southerly flow increases.
This will support afternoon highs in the mid to upper 80s with a few readings in the low 90s not out of the question either.
819 PM EDT Fri May 1 2020 Moderating temperatures expected through the weekend as high pressure and upper level ridging control the region.
1056 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
813 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
447 PM MDT Fri May 1 2020 Current surface analysis shows cold front now south and east of the forecast area, with tight pressure gradient behind it producing breezy to windy conditions.
640 PM CDT Fri May 1 2020 Elevated fire weather concerns late this afternoon with trough working through the area and gusty southwest winds transitioning to northwest.
/issued 122 PM EDT Fri May 1 2020/ High pressure is building into the area today, with cooler and drier air filtering down the state.
/Issued 600 PM EDT Fri May 1 2020/ High pressure over the area will keep things dry through the short term. 01 Period starts out with the region under weak upper ridging and warm/dry weather becoming more zonal.
252 PM PDT Fri May 1 2020 Warm weather will continue with highs trending slightly cooler thru the weekend. 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.
636 PM CDT Fri May 1 2020 Warm and breezy on this Friday afternoon as southerly winds in the lower atmosphere were advecting in warmer air. Southerly winds will continue overnight, keeping low temperatures around 10 degrees warmer than last night. The warmer start and plenty of sunshine will allow for temperatures Saturday too climb into the lower 80s.
526 PM EDT Fri May 1 2020 Warm and dry high pressure will gradually build into the region through the weekend, providing a significant warmup.
It is a quiet night across the area weather wise as high pressure begins to shift southeast and a disturbance to the NW begins to move across the Ohio valley. The other change was to increase daytime highs on Saturday by a couple of degrees as a low level warm front lifts through the area. AD Chattanooga Airport, TN 50 80 59 83 62 / 10 0 0 0 20 Knoxville McGhee Tyson Airport, TN 47 79 59 82 62 / 10 10 0 10 50 Oak Ridge, TN 47 80 58 83 61 / 10 10 0 20 50 Tri Cities Airport, TN 42 75 55 79 57 / 10 10 0 30 70.
/Issued 210 PM EDT Fri May 1 2020/ High pressure over the area will keep things dry through the short term. 01 Period starts out with the region under weak upper ridging and warm/dry weather becoming more zonal.
Low pressure in southern Manitoba with a band warm air advection mid/high level clouds moving across the dvn cwa. The low levels quite dry so some sprinkles were reaching the ground. Meanwhile, a cold front was moving southeast across the northern Plains. Saturday: Weak cold front (more of a wind shift line) will push across the cwa during the morning, with northwest winds behind the front.
636 PM EDT Fri May 1 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 clouds may persist through the remainder of the period but should scatter enough for VFR conditions to prevail by late Saturday morning. We are on the back side of the ridge axis with a good southerly wind today adding to our warm-up. Mostly sunny to occasionally partly cloudy skies have our temps last hour all in the low 80s except Idabel, but peaks have yet to occur in the well mixed air. Forecast sounding for SHV may allow us to keep a scattered low deck, but much of TX will see the focus of this low cloud development between 1 and 2kft from sunup until around 9 or 10 am. These added clouds burning off will help to limit the recent warming trend with highs again expected in the low to mid 80s on Saturday.
Large upper trough approaching the Pacific northwest this evening. The upper trough will approach the coast and push a cold front through the region. High pressure over the region will move eastward tonight. As it does so, a strong cold front and potent short wave will approach the Washington and Oregon Coasts and move generally east-north east through Saturday evening.
These conditions are expected to continue overnight tonight which will again lead to low temps warmer than previous nights lows.
A few showers and storms have formed in Illinois in response to a warm front taking shape and a weak upper disturbance arriving. During the afternoon, convection may develop ahead of an approaching cold front from the north. With the increasing clouds and the arrival of the warm front, the NBM's low temperatures look reasonable tonight.
526 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
724 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
High pressure will continue to work into the Florida Peninsula tonight from the Gulf of Mexico. Pleasant and dry conditions are expected through tomorrow as high pressure settles in across the area in the wake of yesterday's cold front.
SCT high clouds will continue to stream across the region within the upper level ridging with SCT fair weather CU developing by mid morning Saturday. /issued 335 PM CDT Fri May 1 2020/ Mid-afternoon sfc analysis shows high pressure centered over far sern LA which has allowed an onshore low-level flow to resume over the forecast area. Water vapor imagery shows our nwrly flow aloft lingering behind the departing ern CONUS trof. with a ridge axis noted moving into the Plains States. However ridging aloft will maintain nil POPs.
High pressure over southern Lake Michigan will shift to the eastern Great Lakes tonight into Saturday. A more organized vort max across Minnesota will send a cold front toward the area on Saturday.
Current surface features have high pressure across Montana sliding southeast tonight. New evening runs of the HRRR model have dewpoints into the lower to middle 20s. However, the stronger surface winds will be across the north central, not where the lowest afternoon Relative Humidity is forecast, which is more southwest.
Breeziest conditions will concentrate in the higher elevations, as well as in western San Bernardino County and across Mohave County.
High pressure will continue to keep quiet weather over the region through Saturday. As the area of high pressure slides to our east, southerly return flow will advect heat and moisture into the forecast area, increasing temperatures and humidity noticeably Saturday. While there is a region of H5 ascent associated with the warm advection, the low levels look parched and not supportive of precipitation. A brief period of ridging will move over the forecast area during the daytime hours Saturday, allowing for decreasing cloud cover. High temperatures will reach the lower to middle 80s across the forecast area.
Winds will become light/calm areawide as weak high pressure builds in promoting a weak pressure gradient across the area. Under sunny skies high temps will reach the lower 80s for coastal sections and into the mid 80s across the interior. Winds rather light/variable remaining under 10 kts as high pressure builds in promoting a weak pressure gradient.
905 PM CDT Fri May 1 2020 Above this region in the mid/high altitudes, a NW flow aloft prevailed as a storm system and trough exits eastward off of the Mid Atlantic coast. Mid evening temperatures have cooled into the mid 50s to lower 60s; that is after warming from the lower 70s to around 80 earlier today. Temps at 8h should warm into the 12-15C range and good mixing thru this layer (below the subsidence inversion) should allow surface temps to warm into the l-m80s (u70s atop the higher Plateaus).
High pressure over the region will move eastward tonight. As it does so, a strong cold front and potent short wave will approach the Washington and Oregon Coasts and move generally east-north east through Saturday evening.
959 PM EDT Fri May 1 2020 Mid and upper level clouds are streaming into the region ahead of a warm front crossing the mid-Mississippi Valley. Cross-sections and surface observations show dry air in the low levels, keeping most radar returns aloft.
High pressure is building in and winds will continue to slowly diminish. Current surface features have high pressure across Montana sliding southeast tonight. New evening runs of the HRRR model have dewpoints into the lower to middle 20s. However, the stronger surface winds will be across the north central, not where the lowest afternoon Relative Humidity is forecast, which is more southwest.
1030 PM MDT Fri May 1 2020 Current surface analysis shows cold front now south and east of the forecast area, with tight pressure gradient behind it producing breezy to windy conditions.
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.
Mid and upper level clouds are streaming into the region ahead of a warm front crossing the mid-Mississippi Valley. Cross-sections and surface observations show dry air in the low levels, keeping most radar returns aloft.
1127 PM CDT Fri May 1 2020 Warm and breezy on this Friday afternoon as southerly winds in the lower atmosphere were advecting in warmer air. Southerly winds will continue overnight, keeping low temperatures around 10 degrees warmer than last night. The warmer start and plenty of sunshine will allow for temperatures Saturday too climb into the lower 80s.
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.
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.
Overnight, winds will return to light and variable, with min temps slightly warmer than previous nights in the upper 50s to mid 60s.
351 AM EDT Sat May 2 2020 High pressure will provide generally fair weather today.
(Today and tonight) Much of western Oklahoma, along with adjacent parts of Texas, will be on the northern edge of ridging aloft today.
338 AM EDT Sat May 2 2020 Brief high pressure brings clearing conditions Today.
A weak, dry cold front will approach from the north as a thermal low develops over the northern Rolling Plains later today. Although the surface front will be weak and eventually come diffuse and lift tomorrow, cooler air aloft will work south out of the Central Plains, and help cool temperatures off slightly tonight into tomorrow.
306 AM EDT Sat May 2 2020 Dry weather can be expected under high pressure today.
Showers and thunderstorms will develop ahead of an upper trough and accompanying cold front Saturday afternoon, likely generating gusty outflow winds with speeds up to 45 MPH.
Clear to partly cloudy skies early this morning across the forecast area as high pressure is centered over the Appalachians and southeast states. Ridging aloft moving over the area and southwest winds developing in dry airmass will warm temperatures nicely from the 40s to the 70s and even lower 80s extreme southern valley and southern plateau. Light southwest winds tonight after temperatures were much warmer will keep lows generally 5 to 10 degrees warmer than this mornings.
At the surface, high pressure was slowly building south into western NEB with low pressure hanging on over the TX panhandle. A prefrontal trough bisected the forecast area with a southerly wind over east central KS and a northeasterly wind across north central KS. This combined with cooler temps at 925 and 850 MB suggests highs will be a few degrees cooler.
Surface ridging will be in place over the next 24 hours with clear skies and light winds.
Temperatures will be 10 to 20 degrees cooler today as the cold front has finally completely passed through the area.
The lower clouds will continue till around 00z before clearing skies begin to work their way back into the area. We are on the back side of the ridge axis with a good southerly wind today adding to our warm-up. Mostly sunny to occasionally partly cloudy skies have our temps last hour all in the low 80s except Idabel, but peaks have yet to occur in the well mixed air. Forecast sounding for SHV may allow us to keep a scattered low deck, but much of TX will see the focus of this low cloud development between 1 and 2kft from sunup until around 9 or 10 am. These added clouds burning off will help to limit the recent warming trend with highs again expected in the low to mid 80s on Saturday.
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.
The warmer temperatures will be in the south where there is going to be more sunshine.
325 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. The area of low pressure that moved across eastern SD on Friday is now over northern WI, with a deeper low set up near the Manitoba/Ontario border. Highs will be in the low 70s today.
Mid- level clouds spreading in later today may prevent highs from reaching full mix down potential, which is 2-4 degrees warmer than the current forecast.
Above this region in the mid/high altitudes, a NW flow aloft prevailed as a storm system and trough exits eastward off of the Mid Atlantic coast. Mid evening temperatures have cooled into the mid 50s to lower 60s; that is after warming from the lower 70s to around 80 earlier today. Temps at 8h should warm into the 12-15C range and good mixing thru this layer (below the subsidence inversion) should allow surface temps to warm into the l-m80s (u70s atop the higher Plateaus).
306 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.
228 AM EDT Sat May 2 2020 High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
1053 PM CDT Fri May 1 2020 Elevated fire weather concerns late this afternoon with trough working through the area and gusty southwest winds transitioning to northwest.
119 AM EDT Sat May 2 2020 High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
351 AM EDT Sat May 2 2020 A ridge of high pressure will work across Pennsylvania today.
Strong cap will be in place inhibiting any convective potential through this afternoon, with any chance of storms coming later tonight as convection develops in upslope regime over the high plains and eventually translates east potentially impacting areas near the KS/OK border.
1121 PM EDT Fri May 1 2020 An area of low pressure at upper levels of the atmosphere will drift east and off the Mid Atlantic Coast tonight. High pressure will build into the region overnight and Saturday, accompanied by fair weather and relatively light wind.
147 AM EDT Sat May 2 2020 Warm and dry high pressure will gradually build into the region through the weekend, providing a significant warmup.
Afternoon minimum RH is expected to fall into the low 20s and perhaps even the upper teens in some locations. This low RH combined with the breezy winds will lead to near critical fire conditions today. Tonight, high pressure pushes off to the east and winds turn easterly.
1045 PM MDT Fri May 1 2020 Critical fire weather conditions have ceased across the lower elevations of southwest Colorado as winds have decreased and relative humidity has increased. However, surface observations from areas such as Hayden and Steamboat Springs reveal a dry atmosphere in the lower levels with dewpoints only in the mid 30s to low 40s. Yet another midlevel trough will brush the northern tier of the forecast area on Saturday with showers redeveloping north of I-70 during the afternoon.
104 AM EDT Sat May 2 2020 Moderating temperatures expected through the weekend as high pressure and upper level ridging control the region.
Large upper trough approaching the Pacific northwest this evening. The upper trough will approach the coast and push a cold front through the region. Cold frontal passage Saturday with showers likely and a chance of thunderstorms. High pressure over the region will move eastward tonight. As it does so, a strong cold front and potent short wave will approach the Washington and Oregon Coasts and move generally east-north east through Saturday evening.
high pressure begins to shift southeast and a disturbance to the NW begins to move across the Ohio valley. The other change was to increase daytime highs on Saturday by a couple of degrees as a low level warm front lifts through the area.
905 PM MDT Fri May 1 2020 Critical fire weather conditions have ceased across the lower elevations of southwest Colorado as winds have decreased and relative humidity has increased. However, surface observations from areas such as Hayden and Steamboat Springs reveal a dry atmosphere in the lower levels with dewpoints only in the mid 30s to low 40s. Yet another midlevel trough will brush the northern tier of the forecast area on Saturday with showers redeveloping north of I-70 during the afternoon.