Aikyam-Lab/Synoptic-Bench huggingface dataset:
347 AM CDT Sun May 21 2017 H5 closed low that has affected western Nebraska the last several days is moving to the north northeast into Minnesota early this morning. H5 ridge along both coasts with a surface cold front along the Gulf. Will continue frost headlines with temperatures hovering around the freezing mark. With the heating of the day and cooler air aloft lapse rates steepen and some marginal cape could see some TRW in the northwest and the southwest where the leading edge of the wave are evident in satellite early this morning. Warmer temperatures tonight with lows on Monday morning in the upper 30s northwest and the low 40s over the remainder of the forecast area.
315 AM CDT Sun May 21 2017 As of 08z, an upper low was centered over central Minnesota. At the surface, a center of high pressure was over western Kansas, while a low pressure center was over southern Minnesota. An upper trough will be digging southeast across the central high plains into the central southern plains by Monday evening. A surface cold front will move into the northwest counties late Monday afternoon.
257 AM CDT Sun May 21 2017 Despite being well removed from the vigorous upper level trough across the Northern Plains into the Upper Great Lakes region of the country, we continue to deal with isolated to scattered convection across portions of the Four State Region early this morning. This due in part to a myriad of convective outflow boundaries, not to mention residual instability from some atmospheric recovery from Sat Aftn, a weak sfc cold front making slow progress into our region and weak upper level perturbations in west southwest flow aloft across East Texas into Northern Louisiana and Southern Arkansas. Cold front as of 06z was oriented near a LZK. The highest rain chances will be felt across our southern third tonight through Monday before we lose the effects of the disturbance to our east.
313 AM EDT Sun May 21 2017 High pressure in Canada will slowly build into the area today and move east Monday.
357 AM CDT Sun May 21 2017 Showers will be slow to end across our northern zones this morning as low pressure lifts slowly to the northeast due to trowaling. However eventually drier air in the low levels finally moves into the area by midday and afternoon. Coupled with unstable dry adiabatic soundings for the lapse rates in the low layers and a vort filament, a few instability showers could linger in these zones through the afternoon. 25 to 30 knots exists in the mixed layer and as mentioned, it is unstable in the lowest kilometer.
353 AM EDT Sun May 21 2017 High pressure well to the north of the state will slide to the south and east tonight and be centered over the eastern seaboard on Sunday morning. Low pressure will move from the plains states into the upper Great Lakes Sunday and Monday. A cold front will push through the state later Monday. The weather will remain unsettled through the week as a large upper level trough advancing slowly from the midwest. Subsidence inversion persists this evening with low broken to overcast now being overrun by increasing mid to high cloudiness from the west as upper ridge tracks eastward. A cold front should cross central Pennsylvania Sunday night into early Monday, accompanied by scattered showers and possibly some thunder.
402 AM CDT Sun May 21 2017 Water vapor loop indicated the upper level low was located over the SD/ND/MN border with the upper level jet on the east side of the trough. Vort lobe was located over western IA and will rotate around upper low on Mon. Upper low will open up and shift east of the area by Tue.
217 AM EDT Sun May 21 2017 A northward moving warm front will bring a few isolated showers and thunderstorms to the area early this morning, with a better chance of scattered showers and isolated thunderstorms toward morning as a cold front approaches from the west.
Latest water vapor imagery and RAP upper air analysis shows continued eastward progression of the upper level ridge that we have enjoyed for the past few days. In it's place, closed upper low over SW Minnesota extends trough axis SE into the Mississippi Gulf Coast. The persistent deep layer SW flow ahead of the trough axis continues to pump unseasonably moist air into the area with model generated PW values of 1.
The early afternoon GOES water vapor loop showed the potent upper low that brought the heavy rain and snow to the CWA the past few days centered over central NE.
Highs today will peak in the lower 70s. The best lift, however, is forecast across the southern zones, so have the highest pops in this region.
405 AM EDT Sun May 21 2017 High pressure will slowly retreat off the east coast today, maintaining rain-free weather, for most of the area.
408 AM EDT Sun May 21 2017 The latest surface map features low pressure centered across southern Minnesota, with a cold front aligned south, nearly along the Mississippi River. An upper level ridge is retreating towards the Eastern Seaboard. The cold front will gradually push east today, with plenty of moisture advecting northward out ahead it. Cooler air will move in behind the front, with lows in the mid to upper 50s. An area of high pressure will be moving across the Ohio Valley and exiting east to begin the period Monday night. Given the lower confidence of cloud cover will lean away from the ridge/valley splits.
1223 AM CDT Sun May 21 2017 A cold front is currently spreading east across the area this afternoon. The front had roughly made it to the Highway 65 corridor early this afternoon. Temperatures behind the front are in the lower 60s with temperatures in the 70s ahead of the front. Dry conditions will occur on Sunday as highs warm into the upper 60s to the lower 70s. Highs will warm into the lower to middle 70s on Monday.
413 AM EDT Sun May 21 2017 High pressure will slowly retreat off the east coast today, maintaining rain-free weather, for most of the area.
104 AM EDT Sun May 21 2017 Low pressure near KC will track slowly north lifting a warm front across the forecast area tonight. The low will move across the Western Lakes Sunday forcing a cold front across the forecast area. Warm front across southern Ohio to push north across the local area late tonight/early Sunday morning. Showers/thunderstorms should fill in quickly after about 8 am with a prefrontal trough. By 6 am Sunday the cold front will only be reaching the IL/IN border. High pressure builds in Monday night ushering in drier and much more seasonal conditions.
351 AM EDT Sun May 21 2017 Warm front will lift across Lake Erie this morning as low pressure moves over the Upper Great Lakes. The low will continue to move northeast across Ontario pushing a cold front across the region this evening into the overnight. High pressure will briefly ridge into the area from the Ohio River Valley on Monday.
359 AM CDT Sun May 21 2017 Scattered showers and storms expected to stay just south of our CWA this morning as mid-level/H7 trough continues to progress eastward over region. Rain chances will increase across mainly northwest Oklahoma tonight as next s/wv trough progresses through base of northern/central U. l/wv trough.
Per water vapor imagery, the forecast in the short term and into the early portion of the extended will be dominated by the slow movement of a closed mid/upper level low circulating over central Nebraska this afternoon.
Precipitation will exit the area with a cold front today. A new cold front will also approach from the Plains.
A ridge of high pressure along the West Coast will be the dominant feature bringing dry and warmer weather for most of our region early this week. A weak disturbance sliding down the front side of the ridge today will bring a few showers and a slight chance of thunderstorms to Lincoln County and the southern Sierra this afternoon and evening.
139 AM EDT Sun May 21 2017 High pressure will slowly retreat off the east coast through Sunday, maintaining rain-free weather, for most of the area.
242 AM CDT Sun May 21 2017 08Z water vapor loop shows a closed low along the SD/MN border with its surface reflection just slightly farther east across south-central MN. Unseasonably cool temperatures will persist, topping out in the lower to mid 50s this afternoon. This will result in afternoon highs from the lower 60s across the northwest to the lower 70s across the southeast. While Monday morning will be mostly dry with some sunshine, expect cloud cover and shower/thunderstorm chances to increase in the afternoon/evening ahead of southeastward advancing cold front.
400 AM EDT Sun May 21 2017 The latest surface map features low pressure centered across southern Minnesota, with a cold front aligned south, nearly along the Mississippi River. An upper level ridge is retreating towards the Eastern Seaboard. The cold front will gradually push east today, with plenty of moisture advecting northward out ahead it. Cooler air will move in behind the front, with lows in the mid to upper 50s. VFR conditions will rule initially, as a cold front remains well to our west. Scattered showers will become more numerous during the day on Sunday as a cold front gradually advances east across the Commonwealth.
640 AM EDT Sun May 21 2017 A cold front will bring scattered showers and storms to the area this morning, with the activity ending from west to east this afternoon.
trend for the CWA for the period is for clearing with decreasing winds as high pressure builds over the area. and the approach of surface ridging and slackening winds. with high pressure east of the region. Upper low moves into the Great Lakes region on Sunday night and into Monday.
400 AM MDT Sun May 21 2017 A broad area of cyclonic flow aloft associated with a robust upper low centered over northern MN will likely give way to a fairly un- settled period of weather over the next several days with numerous mid-level disturbances embedded within the flow. Breezy conditions are likely for Monday across much of southeast WY and the western NE Panhandle w/ the passage of the cold front. Believe temperatures will finally rebound some on Tue as ridging begins to build eastward, but fast northerly flow will more than likely keep it cooler (upper 50s/near 60) w/ lingering chances for showers and storms.
330 AM MDT Sun May 21 2017 Low pressure system currently over southwestern Minnesota early this morning will move into northeastern Minnesota this afternoon. Disturbances rotating southward on the west side of the upper low will be accompanied by weak CAA aloft. Monday will be windy an cooler with highs mainly in the lower 50s to lower 60s.
647 AM EDT Sun May 21 2017 Shower and thunderstorm chances will increase by this afternoon as moisture increases ahead of an approaching cold front.
531 AM EDT Sun May 21 2017 High pressure centered over eastern Canada and ridging south to the southern New England coast will slide slowly to the east today, allowing a cold front to push east from the Ohio Valley and bring the entire region a moderate rainfall averaging several tenths of an inch late today through much of Monday morning.
648 AM EDT Sun May 21 2017 Warm front slowly drifts northeast across Central West Virginia this morning. A cold front crosses from the west tonight. High pressure crosses through Monday night, then low pressure and unsettled conditions for the remainder of the work week. A cold front will slowly pass through the region today through tonight. Conditions will improve later tonight from west to east with high pressure moving in behind the front. The cold front will be crossing the eastern mountains with some lingering rain showers Monday morning. The timing of the cold front is unfavorable from diurnal heating and pwats around 1 inch, rainfall should be light.
640 AM EDT Sun May 21 2017 High pressure in Canada will slowly build into the area today and move east Monday.
545 AM EDT Sun May 21 2017 Rain chances increase today ahead of a cold front arriving late tonight. Upper- level flow pattern will favor showers and thunderstorms moving southwest to northeast, quasi- parallel to a lagging cold front. Lows tonight will remain above average, ahead of the approaching cold front. The large parent low pressure system will move through the western Great Lakes tonight, sweeping a cold front through our area Monday morning. The bulk of the remaining rain chances will be in the pre-dawn hours Monday, but a few showers could linger in the Ridges through midday. High pressure will begin to establish drier weather through Monday afternoon, despite a broad upper-level trough holding in the Great Lakes.
518 AM CDT Sun May 21 2017 Today through tonight: An anomalous upper low will become anchored over the Great Lakes region in the near term, and this will maintain active westerly flow aloft over the ArkLaMiss region. /EC/ Monday through Sunday: The upper-level low pressure system will continue to spin over the Great Lakes on Monday, and at least some portion of it will remain over that region through most of the upcoming week.
High pressure will bring mostly sunny and dry conditions for the start of the work week with highs topping out in the upper 70s to 80s. Cooler weather along with shower and thunderstorm chances expected towards the end of the work week. Showers continue this morning over northern and eastern Elko county as a trough of low pressure sags down the front side of the approaching upper-level ridge into the region. Dry weather, light winds and mostly sunny skies are expected Monday as high pressure builds over the region.
310 AM EDT Sun May 21 2017 Rain chances increase today ahead of a cold front arriving late tonight. Upper-level flow pattern will favor showers and thunderstorms moving southwest to northeast, quasi-parallel to a lagging cold front. Lows tonight will remain above average, ahead of the approaching cold front. The large parent low pressure system will move through the western Great Lakes tonight, sweeping a cold front through our area Monday morning. The bulk of the remaining rain chances will be in the pre-dawn hours Monday, but a few showers could linger in the Ridges through midday. High pressure will begin to establish drier weather through Monday afternoon, despite a broad upper-level trough holding in the Great Lakes.
The low ceilings are expected to remain across most of the area through the afternoon tomorrow. The presence of an upper level speed max/shrtwv trof and development of se low level flow along with mid level LRs around 7. Mid level flow will transition to NW on Monday and the chance of tstms will increase Monday evening with an embedded shrtwv trof and PB will be on the poleward side of a 95kt 3h jet. Storms initially are favored to develop in ern NM on the leeward side of the low level thermal ridge and develop/move se. Even though there will be outflow winds with this cluster of storms the real cold front is not expected until closer to 12Z Tue.
1246 AM CDT Sun May 21 2017 Light showers and patchy drizzle associated with a slow moving upper low have been fairly persistent all day and will continue across the area this afternoon. As the low tracks off to the northeast any remaining showers should begin to taper off. Temps could reach near freezing in our northwest counties where we have a Frost Advisory in effect. Monday looks to be the best chance for showers and thunderstorms in the near future as a cold front makes its way across the area.
1123 PM MDT Sat May 20 2017 Deep closed low over the Rockies continues to slowly shift NE with backside impulses expected to affect the region the next couple days. Main forcing and associated FGEN from the upper low will exit the FA late this afternoon and evening with rain ending over scentral SD. Upper low will push east by mid week with deep layer ridging expected. This will bring much warmer weather and dry conds to the region for a couple days. Moisture looks to be limited with this next round of troughing given closed GOMEX and PAC origin flow.
336 AM EDT Sun May 21 2017 Warm front slowly drifts northeast across Central West Virginia this morning. A cold front crosses from the west tonight. High pressure crosses through Monday night, then low pressure and unsettled conditions for the remainder of the work week. A cold front will slowly pass through the region today through tonight. Conditions will improve later tonight from west to east with high pressure moving in behind the front. The cold front will be crossing the eastern mountains with some lingering rain showers Monday morning. The timing of the cold front is unfavorable from diurnal heating and pwats around 1 inch, rainfall should be light.
Expect gusty westerly winds across southern WI this afternoon as low pressure tracks through northern WI and into the U.
455 AM EDT Sun May 21 2017 Shower and thunderstorm chances will increase by this afternoon as moisture increases ahead of an approaching cold front.
The Pulley Ridge buoy in the southeastern gulf reports 4 ft seas. In the upper levels, a 500 mb low digs across the northern plains as gentle ridging continues across southeastern US. At the surface, a cold front stretches from Ohio to eastern Texas, a warm front is draped from Illinois to Virginia, and strong thunderstorms are ahead of the boundary moving through the Alabama/Georgia and the Florida Panhandle/Big Bend. The short term forecast lifts the upper low to Minnesota/Wisconsin with the ridge flattening across the Southeast.
102 AM CDT Sun May 21 2017 Widely scattered showers and thunderstorms have developed in advance of a cold front across the Illinois River Valley this evening. Warm front has pushed northward across most of the forecast area, and was just starting to come into the areas from Galesburg to Lacon at 2 pm. Main issue for this part of the forecast will be with convective redevelopment ahead of the cold front, which is currently back in western Missouri.
/issued 444 PM EDT Sat May 20 2017/ Through Sunday: A large dome of upper level high pressure can be observed on water vapor imagery stretching from the mid Atlantic coast to Bermuda. Clockwise motion around the high continues responsible for the persistent east southeast winds, mainly 10 to 15 mph. The GFS and ECMWF both begin to sag a long wave trough over the southern CONUS.
High pressure aloft building across the western states will bring a warming and drying trend to the area through the middle of the week.
Question is where will the surface boundary be as this occurs? It'll likely serve as a focus for the higher rainfall amounts and potential for any flash flooding. Guidance suggests it could be anywhere from the Highway 59 corridor to just offshore. These will eventually carve out an eastern trof. Models remain on track with pushing a second strong- er cold front into the coastal waters Tues.
400 AM CDT Sun May 21 2017 Drier air will continue to slowly ooze east into the region today as high pressure gradually builds into the Southern Plains. lowering sfc dew points and light northerly winds will bring a much cooler night tonight. Monday should be a pleasant day as high pressure continues to build east into the Ohio River Valley.
424 AM EDT Sun May 21 2017 Showers and thunderstorms will affect the region one more day as a cold front moves east through the region today. High pressure will build in for the beginning of the week offering drier and cooler conditions. Highs today will be in the lower to mid 70s. Temperatures will cool to the lower 50s in the west to mid 50s in the extreme ern counties. High pressure will build across the fa Monday bringing dry weather and cooler temperatures. Highs will reach only the lower 70s, with a few spots staying in the upper 60s.
254 AM CDT Sun May 21 2017 The panhandles will be on the south and southwest side of a large upper level trough over the central U. The west to northwest flow across the panhandles will bring several short wave troughs across the region through Monday night. A short wave trough will help to bring the showers and storms across much of the panhandles tonight. Another short wave trough will move through the panhandles Monday and another will move through later Monday night. The models are not in agreement on the timing of these various short wave troughs that move through the region and their impact on our rain chances.
352 AM CDT Sun May 21 2017 A closed upper low was positioned over Minnesota this morning with a surface reflection centered near the TWin Cities. Expect the showers with occasional thunderstorms to continue throughout the day as the upper low drifts toward western Lake Superior and northwest Ontario. Temperatures will remain cooler than normal with the clouds and precipitation during the short term.
203 AM EDT Sun May 21 2017 High pressure remains in control through Sunday. The only exceptions will be in and around the NYC metro area where lows will only fall into the lower 50s and across the Long Island pine barrens where upper 30s will be possible. High pressure slowly moves offshore as a frontal boundary starts to approach the region. A warm front approaches, with the cold front lagging back into PA by early Monday morning. An upper trough over the central U. The first of these systems will impact the area during the day on Monday, as a low moving through the Great Lakes sends a cold front through the area.
500 AM EDT Sun May 21 2017 A cold front will bring scattered showers and storms to the area this morning, with the activity ending from west to east this afternoon.
354 AM EDT Sun May 21 2017 Shower and thunderstorm chances will increase by this afternoon as moisture increases ahead of an approaching cold front.
649 AM EDT Sun May 21 2017 High pressure will slowly retreat off the east coast today, maintaining rain-free weather, for most of the area.
310 AM CDT Sun May 21 2017 Eastern Oklahoma and western Arkansas will get a well deserved break from the rain Today as high pressure reigns supreme for the day.
333 AM EDT Sun May 21 2017 A ridge of high pressure extends from Bermuda to northeast Florida this morning, with an area of low pressure over the central CONUS.
Upper level ridging will begin its amplification across the Plains on Friday. /10/ Friday Night through Thursday: With high pressure at the surface and ridging aloft, Friday night will have the chance to get chilly across the forecast area.
719 PM EST Thu Mar 1 2018 The cold front will continue to push to the east this evening. The cold front continues to move across the forecast area this afternoon. High temperatures will be in the low to mid 40s on Friday. This will lead to decent ridging developing across our area and dry conditions through the weekend.
As this high pressure moves east, a low on the lee side of the Rockies in Colorado deepens increasing the pressure gradient across the area.
high pressure. expect a warming trend with highs about five degrees warmer than today and winds slowly veering around to a more southerly direction. The warming trend will continue into the weekend as the upper level ridge begins to build over the area.
638 PM EST Thu Mar 1 2018 A cold front has moved through the area, but showers will linger this evening.
After a relative lull this afternoon, precipitation will increase again tonight as the storm's cold front comes through from west to east. Rain in the low valleys will mix with or change to wet snow by morning but little snow accumulation is expected there as roads should stay wet.
Due to deep mixing, temperatures have also been warmer than earlier forecast, with readings well into the 40s to lower 50s. Welcome to March and meteorological spring! HAASE Tonight: High pressure will bring clear skies and light winds which will allow for ideal radiational cooling. With the dry airmass in place, minimum temperatures should bottom out in the lower to mid 20s. Friday: The ridge will slip off to our east returning weak warm air advection. I will go with the warmer MAV guidance with highs once again well into the 40s to lower 50s. HAASE The extended will be dominated initially by dry and pleasant late winter high pressure.