Aikyam-Lab/Synoptic-Bench huggingface dataset:
1042 PM EDT Thu Apr 2 2020 Gusty northwest winds will persist through Friday afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible Friday as the low moves closer to the coast.
/issued 955 PM CDT Thu Apr 2 2020/ Midevening GOES water vapor imagery showed an upper level ridge axis centered over the lower MS River valley. A few showers were noted along a weak midlevel trof axis, extending from north central AR through eastern MO and IA, immediately upstream of the low amplitude ridge axis. Increasing cloud cover tonight will keep temperatures in the 50s as a cold front begins to progress eastward from the Plains. A few showers are possible late tonight in northeast Arkansas and the Missouri bootheel Friday morning but will struggle to overcome the remaining high pressure.
An area of lingering mid level Fgen-induced snow and freezing rain will exit southeast MN and northwest IA early this morning. Icy roads and especially bridges, overpasses, and other elevated surfaces are being reported across the majority of the region. Although precipitation will have ended, icy travel conditions are likely to linger until mid day when diurnal heating forces the air temperature to rise to near to above freezing.
400 AM CDT Fri Apr 3 2020 Late night sfc analysis shows high pressure now centered over the sern CONUS and the accumulation of 12-18 hours of srly low-level flow has resulted in dewpoints about 10 degrees higher than this time yesterday. Meanwhile a cold front is noted stretching from the wrn Great Lakes through the cntl/srn Plains to nwrn TX. Water vapor imagery continues to show some ridging in place over the Atchafalaya Basin while a more swrly flow aloft is finally beginning to develop over much of the region.
1109 PM EDT Thu Apr 2 2020 Gusty northwest winds will persist through Friday afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible Friday as the low moves closer to the coast.
Dry conditions will persist today and most of tonight under the influence of high pressure.
1131 PM CDT Thu Apr 2 2020 Upper ridge has moved east of the area late this afternoon and weak moisture transport has begun over the region. This trend will continue through the night as moisture convergence increases across the area as the low level jet sets up. Expect showers and scattered thunderstorms to expand over the area on Friday and Friday night as the NAM/GFS has been consistent in bringing an upper trough across the northern CONUS that will increase ascent across Missouri and Illinois. This will bring an attendant cold front across Missouri and Illinois Friday and Friday night.
Exception will be downwind of the lake as southeasterly synoptic gradient should support a robust lake breeze this afternoon with much cooler temps near the lake and lake cooling spreading inland late in the afternoon. Upper trough and associated surface front will move into the region tonight with pre-frontal band of rain showers spreading east across the CWA through the night.
The main mid and upper trough will rotate out of the area today, taking the cold core with it.
203 AM MDT Fri Apr 3 2020 Latest upper air analysis shows the trough swinging north over the Northern Plains. The trough axis was moving through the Plains. With the clouds clearing as drier air moves in, highs will be warmer than yesterday. Tonight cloud cover will increase as a weak upper level short wave trough moves over the forecast area. Lows will be a few degrees warmer than last night due to the lack of CAA.
245 AM CDT Fri Apr 3 2020 Current satellite analysis depicts a broad midlevel trough over the northwestern CONUS. At the surface the CWA already saw an associated cold frontal passage which dropped the temperatures in Amarillo about 50 degrees in less than 12 hours. By noon the winds will start to come down and shift to the northeast as high pressure builds in. Calms winds accompanied by relatively dry air will allow overnight lows tonight to drop to below freezing for most of the FA. Winds aloft will become more southwest tomorrow, in fact the southeastern Texas Panhandle will have some diffluent flow aloft out ahead of the H5 trough.
A cold front should move into our airspace late in the TAF period, maybe making it into all but the ELD/MLU terminals by the end of the 24hr TAF period.
327 AM CDT Fri Apr 3 2020 Low level warm air advection/isentropic upglide in the wake of a vigorous cold front is resulting in drizzle and freezing drizzle with a few pockets of light rain/freezing rain at times early this morning.
326 AM EDT Fri Apr 3 2020 Precipitation will become more showery today before ending as low pressure system off the New England coast will slowly drift southward through today.
High temperatures will be nearly 25 degrees cooler today than yesterday. Temperatures across the northwestern southern Texas Panhandle will drop to near the freezing mark.
A mean longwave trough remains in place over the western CONUS this evening. However, the embedded trough that brought the cold front and precipitation to the area last night into today is exiting the area, with H5 temperatures warming slightly.
240 AM MDT Fri Apr 3 2020 Current surface analysis shows high pressure centered over the northern high Plains, with winds decreasing across the area. Upper level analysis has trough moving east of the area now, with near zonal flow from the Pacific NW through the Rockies.
117 AM EDT Fri Apr 3 2020 High pressure will build in from the north for the remainder of the week and into the weekend.
In the meantime, main cold front has moved into western Missouri and will begin to move into far western portions of forecast area by 12z Friday. As for temperatures today, it will remain rather mild ahead of front with cooler temperatures behind the boundary.
137 AM EDT Fri Apr 3 2020 Gusty northwest winds will persist through Friday afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible Friday as the low moves closer to the coast.
1231 AM CDT Fri Apr 3 2020 A cold front continues to approach from the Plains.
340 AM EDT Fri Apr 3 2020 A ridge of high pressure will remain in control across the region today.
Showers/isolated thunder will occur today/tonight and will be mostly post frontal/elevated with a cold front that will move slowly through the region. The front will have a tougher time shifting east with time with a persistent upper level ridge axis just off to our east.
The threat for a bit of drifting/blowing snow across portions of central South Dakota and perhaps some freezing drizzle across the Coteau, per forecast model soundings, remains until then. High pressure and drier air moves in behind this system, leading to clearing skies from west to east through the late morning and afternoon hours.
352 AM EDT Fri Apr 3 2020 A high pressure ridge will cross the region today into tonight.
Rising heights will allow highs today to be warmer than yesterday, near 80 with lows tonight in the mid to upper 50s.
1220 AM EDT Fri Apr 3 2020 A ridge of high pressure will remain in control across the region tonight through Friday.
By mid-morning, a cold front will quickly sweep southward, causing sudden changes in winds and direction, as well as poor flight conditions in rain and occasional thunderstorms. Surface cold front has sagged into the Panhandle and western Oklahoma this afternoon, and is poised to drop pretty quickly southward tonight. Still, even with that said, the NAM temperatures dropping and holding in the 40s tomorrow looked a little too cold and kept readings a little warmer than that. Other showers and not as strong storms will be possible farther north towards San Angelo and Brownwood as well as the low level moisture is lifted up and over the shallow cold air mass.
1234 AM CDT Fri Apr 3 2020 (This evening through Friday) The cold front has moved into northwest Oklahoma with winds northwest at Gage and Woodward. This front will continue to move southeast and should move through quicker than the previous forecast indicated, especially with the high pressures observed in the central and northern High Plains. With the cold temperatures (mid 20s) in east central Colorado and northwest Kansas, there is the potential of getting freezing temperatures into northwest Oklahoma early Friday morning.
351 AM EDT Fri Apr 3 2020 An area of low pressure remains over the western Atlantic. A ridge of high pressure extends from the Great Lakes to the Gulf of Mexico.
Some areas of light snow or rain may make it into the lower elevations tomorrow afternoon and evening, with localized MVFR or IFR conditions possible.
Quiet TAF period with VFR prevailing as a large area of high pressure settles across the southern Appalachian region. RG Chattanooga Airport, TN 73 49 74 53 74 / 0 0 0 10 20 Knoxville McGhee Tyson Airport, TN 71 46 71 51 73 / 0 0 0 10 20 Oak Ridge, TN 72 47 72 51 72 / 0 0 0 10 30 Tri Cities Airport, TN 67 40 69 46 71 / 0 0 0 10 30.
Scattered showers are expected to develop 15Z-18Z between SAT and DRT, then become more numerous and widespread across South Central Texas during the afternoon ahead of a cold front.
Scattered showers and thunderstorms will prevail overnight into Friday morning as a cold front moves across the area. Strong cold front just now entering NW Osage County and showers and thunderstorms should also expand north across the rest of the forecast area as the front moves southeast. Scattered light showers and prevailing low VFR ceilings currently will trend toward prevailing MVFR ceilings overnight ahead of the approaching strong cold front. /Issued 231 PM CDT Thu Apr 2 2020/ The main forecast concerns will be convective potential/severity thru Friday in association with a strong cold front. A strong cold front, with Arctic roots as evidenced by obs across western Canada down into MT/Dakotas, stretched from western MN south across central KS and down into the OK Panhandle as of 18Z.
425 AM EDT Fri Apr 3 2020 07z sfc analysis shows a decent area of high pressure centered over the eastern parts of the Ohio Valley. As a result, temperatures have dropped steadily through the night, though a ridge to valley split of moderate magnitude is ongoing. Specifically, readings range from the mid to upper 40s on the ridges while some of the sheltered valleys have dropped to near freezing. Dewpoints have been falling in lockstep with the temperatures in the valleys - running in the low to mid 30s on the ridges. They all depict sort of a blocking situation with Kentucky enjoying the ridge section between two much larger upper lows today and into the start of the weekend.
Temperatures are mostly in the 50s with morning lows expected to be in the low to middle 50s. A weak ridge is in place across the Midsouth. The axis of the ridge is currently over the Mississippi River, and is expected to slowly shift East during the day as it deamplifies. The weak ridge over the Mississippi River Valley and Southeastern US will remain in place with weak disturbances moving through weak Southwest flow across the area. Temperatures will trend warmer.
139 AM EDT Fri Apr 3 2020 High pressure will continue to provide dry weather conditions into tonight and Friday.
Went near the warmer MET and MAV MOS guidance from the upper 30s to around 40 north central to the lower to mid 40s southwest. Despite a deck of mid and high clouds moving in after midnight, remained cold on the lows from the upper teens to around 20.
355 AM CDT Fri Apr 3 2020 Freezing drizzle will end early this morning as drier air moves into western Kansas.
High pressure surface and aloft over the eastern U. Temperatures will continue to moderate with overnight lows in the lower 60s and daytime highs around 80 along the coast and lower 80s inland today, then warming into the lower 80s along the coast, and mid and upper 80s inland on Saturday.
653 AM CDT Fri Apr 3 2020 Showers and a few thunderstorms will continue through the day ahead of a slow moving cold front. Today Through Saturday Night An upper ridge continues over the middle of the country with an upper low moving into the northwestern U. The upper ridge will move east today and the upper low will filter into the Plains. The upper low will slowly progress east through Saturday. The cold front in eastern Oklahoma will be slowly moving east today and Saturday. Lows tonight will be in the lower to mid 50s and mid 40s to upper 50s Saturday night.
531 AM EDT Fri Apr 3 2020 Dry weather and seasonable temperatures can be expected through Saturday under high pressure.
358 AM MDT Fri Apr 3 2020 Current surface analysis shows high pressure centered over the northern high Plains, with winds decreasing across the area. Upper level analysis has trough moving east of the area now, with near zonal flow from the Pacific NW through the Rockies.
A minor perturbation in the subtropical stream is helping to initiate light warm advection rainfall roughly along/south of the Highway 84 corridor early this morning. Otherwise, the weather pattern continues to be influenced by ridging centered over the ArkLaMiss region with anticyclonic flow helping to limit any rain chances.
The HRRR and short range expectation is for increasing coverage this morning along the I-30 corridor as the cold front moves in a little closer. This cold front will edge into our NW counties during the mid afternoon and slowly spread to the South and East overnight.
506 AM EDT Fri Apr 3 2020 Gusty northwest winds will persist through this afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible over eastern sections as the low moves closer to the coast. High pressure will advance overhead on Saturday, pushing the coastal storm and its associated weather out of our area.
Weak high pressure over the southeastern U. Another weak upper level disturbance and a slowly approaching surface cold front will allow for scattered shower development across the western half of the area beginning after 00Z this evening and extending through the night. /issued 400 AM CDT Fri Apr 3 2020/ Late night sfc analysis shows high pressure now centered over the sern CONUS and the accumulation of 12-18 hours of srly low-level flow has resulted in dewpoints about 10 degrees higher than this time yesterday. Meanwhile a cold front is noted stretching from the wrn Great Lakes through the cntl/srn Plains to nwrn TX. Water vapor imagery continues to show some ridging in place over the Atchafalaya Basin while a more swrly flow aloft is finally beginning to develop over much of the region.
Exception will be downwind of the lake as southeasterly synoptic gradient should support a robust lake breeze this afternoon with much cooler temps near the lake and lake cooling spreading inland late in the afternoon. Upper trough and associated surface front will move into the region tonight with pre-frontal band of rain showers spreading east across the CWA through the night. Upper trough is progged to lift north as it moves east, with progressively weaker large scale ascent with eastward extent, so should see some decrease in precip intensity and perhaps coverage as rain moves east overnight into Saturday morning. In wake of rain on Saturday look for skies to clear out from the west, with cooler air mass in place in the wake of the cold front.
636 AM EDT Fri Apr 3 2020 A high pressure ridge will cross the region today into tonight.
In the meantime, main cold front has moved into western Missouri and will begin to move into far western portions of forecast area by 12z Friday. As for temperatures today, it will remain rather mild ahead of front with cooler temperatures behind the boundary. Lows tonight will range from the low 30s far north to around 50 degrees far southeast.
1042 AM EDT Fri Apr 3 2020 A cooler and breezy end to the week with early sunshine giving way to a mostly cloudy sky through the day.
Dramatic changes in the pattern take shape over the weekend as a pair of troughs impact the state. While the initial closed low will bring unsettled weather to the region on Saturday, impacts will be somewhat limited given the progressive nature of the system.
709 AM CDT Fri Apr 3 2020 Low level warm air advection/isentropic upglide in the wake of a vigorous cold front is resulting in drizzle and freezing drizzle with a few pockets of light rain/freezing rain at times early this morning. Light northeast winds will become more easterly toward Saturday morning with at or below freezing temperatures likely for much of the area once again.
539 AM EDT Fri Apr 3 2020 High pressure with dry weather Friday and Saturday.
This has been happening all night and seems associated with the axis of the H5 trough, that is very, very slow moving. Once that trough passes a point snow should end.
Much of the precip will continue to overrun the weak boundary of cooler air with in and out thunder just about anytime somewhere during this cycle. The HRRR and short range expectation is for increasing coverage this morning along the I-30 corridor as the cold front moves in a little closer. This cold front will edge into our NW counties during the mid afternoon and slowly spread to the South and East overnight.
Cold Front and Rain. A cold front will push south across West Central Texas today and bring gusty winds, from the north, cooler temperatures, and the potential for rain. Otherwise, temperatures will be much cooler today, as compared to yesterday, especially across the Big Country. For tonight, lows will be cooler than usual early April lows, especially across the Big Country, where lows in the 30s look likely.
Models continue to show a cold front just west of the PAH forecast area by 00z, moving slowly across our region tonight and Saturday. Highs will drop off to a little below normal across southern Illinois and southeast Missouri on Saturday behind the front, with the cooler air taking a little longer to reach southwest Indiana and west Kentucky.
A beautiful day is in store across the region with most pleasant ridging holding strong from the Gulf of Mexico north into Ontario. VFR will continue over the next 24 hours with high pressure in control of the southern Appalachians.
703 AM EDT Fri Apr 3 2020 A dry and stable environment will remain firmly entrenched through tonight under prevailing high pressure. Quiet weather today into Saturday afternoon as an amplified, yet narrow, ridge resides overhead. This ridge is sandwiched in between a strong trough axis swinging through the central Plains and a stacked low pressure system off the east coast.
A flat upper ridge over the central Gulf will support west-northwest flow aloft, with light and gentle easterly breezes continuing at the surface.
742 AM EDT Fri Apr 3 2020 Gusty northwest winds will persist through this afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible over eastern sections as the low moves closer to the coast. High pressure will advance overhead on Saturday, pushing the coastal storm and its associated weather out of our area.
633 AM CDT Fri Apr 3 2020 /12Z TAFS/ A cold front is currently sweeping quickly southward across the region. Cold Front and Rain. A cold front will push south across West Central Texas today and bring gusty winds, from the north, cooler temperatures, and the potential for rain. Otherwise, temperatures will be much cooler today, as compared to yesterday, especially across the Big Country. For tonight, lows will be cooler than usual early April lows, especially across the Big Country, where lows in the 30s look likely.
The threat for a bit of drifting/blowing snow across portions of central South Dakota and perhaps some freezing drizzle across the Coteau, per forecast model soundings, remains until then. High pressure and drier air moves in behind this system, leading to clearing skies from west to east through the late morning and afternoon hours. Still some wiggle room for just how cold, but ensemble guidance centers near 10 degrees for much of the area at this time, minus the warmer south central SD area. As for Saturday, expect a warmer southerly return flow to set up early as high pressure slides east and low pressure sets up across southern Alberta/Saskatchewan. Dry conditions and high temperatures in the low 40s to low 50s are expected.
646 AM CDT Fri Apr 3 2020 Cold front has moved through the area this morning. High temperatures will be nearly 25 degrees cooler today than yesterday. Temperatures across the northwestern southern Texas Panhandle will drop to near the freezing mark.
905 AM EDT Fri Apr 3 2020 High pressure with dry weather Friday and Saturday.
510 AM EDT Fri Apr 3 2020 Gusty northwest winds will persist through this afternoon thanks to a potent, meandering low pressure system off the East Coast. A few light showers will be possible over eastern sections as the low moves closer to the coast. High pressure will advance overhead on Saturday, pushing the coastal storm and its associated weather out of our area.
High temperatures will trend warmer near climo values with highs near 80 inland to the low/mid 70s toward the Atlantic coast under onshore flow this afternoon. Trended a bit cooler than blended guidance for low temperatures tonight given dry low level airmass in place, however, overall trend will be lows trending a bit warmer and closer toward normal at all climate sites ranging from near 50 inland to the mid/upper 50s along the Atlantic coast and St.
652 AM EDT Fri Apr 3 2020 An area of low pressure remains over the western Atlantic. A ridge of high pressure extends from the Great Lakes to the Gulf of Mexico.
Went near the warmer MET and MAV MOS guidance from the upper 30s to around 40 north central to the lower to mid 40s southwest. Despite a deck of mid and high clouds moving in after midnight, remained cold on the lows from the upper teens to around 20. A persistent south wind with lows not as cold from near 30 to the lower 30s.
730 AM EDT Fri Apr 3 2020 Dry weather and seasonable temperatures can be expected through Saturday under high pressure.
/Issued 245 AM CDT Fri Apr 3 2020/ Current satellite analysis depicts a broad midlevel trough over the northwestern CONUS. At the surface the CWA already saw an associated cold frontal passage which dropped the temperatures in Amarillo about 50 degrees in less than 12 hours. By noon the winds will start to come down and shift to the northeast as high pressure builds in. Calms winds accompanied by relatively dry air will allow overnight lows tonight to drop to below freezing for most of the FA. Winds aloft will become more southwest tomorrow, in fact the southeastern Texas Panhandle will have some diffluent flow aloft out ahead of the H5 trough. Daytime highs on Saturday will be a bit warmer in the low 60s for most of the area.
Showers/isolated thunder will occur today/tonight and will be mostly post frontal/elevated with a cold front that will move slowly through the region. The front will have a tougher time shifting east with time with a persistent upper level ridge axis just off to our east. Temperatures near freezing will be possible in the far northwest cwfa Fri night/early Sat.
412 AM MDT Fri Apr 3 2020 Expect cooler than normal conditions to continue through tomorrow. Mountain snow showers this morning may spread into the lower elevations this afternoon into tonight as a weak cold front pushes across the state.
Temperatures dropped to the 50s early this morning and are forecast to warm to the mid-upper 70s along the coast (thanks to the sea breeze) and to the lower-mid 80s for the interior.
A broad upper trough and low will provide a cyclonic flow over the northern Rockies today. However, very little energy is associated with the low so expect a dry day today with partly to mostly sunny skies. Although afternoon temperatures will remain quite a bit below normal, they will be much warmer than Friday with most areas in the 40s. The upper low and trough shift east Saturday allowing for some ridging to build over the forecast area.