Aikyam-Lab/Synoptic-Bench huggingface dataset:
206 AM EDT Thu Nov 2 2017 High pressure will ridge into the forecast area through the rest of the week. Temps will continue above normal, especially during the afternoon hours, where highs will be 10 degrees or so warmer than usual for early November.
Low level winds have been decreasing overnight as weak low pressure trof approaches from the west. Upstream weak surface trof will move through southern WI today. Medium to High Mid level ridging slowly builds in.
A cold front will have moved through the forecast area by sunrise this morning with post frontal stratus and fog in its wake. Should see afternoon temperatures in the low to mid 50s. For tonight NAM brings back the low level moisture/fog to our Colorado counties as sfc winds from the east to southeast. Currently advertising low temperatures in the low 30s which is a blend of better performing guidance the last few days to two weeks. Could also be a little cooler with less clouds and fairly light winds. Wont make any changes to high temperature forecast of around 50 east (under the low clouds) to the upper 50s/around 60 in far eastern Colorado. Low temperatures in the low to mid 30s.
Synoptic Setup: Hot air is currently locked up over the Lower Intermountain West. Forecast begins with the center of Arctic air over Nunavut which then spreads over the whole of southern Canada and spills back west through a trough off of the coast of British Columbia. Today into this evening: Expect drying conditions as cold high pressure moves through the area. Meanwhile the trough off the coast of British COlumbia will dig south to off the coast of the Pacific Northwest scooping up a large slug of pacific moisture and lifting it into the zonal flow expressway.
611 AM EDT Mon Apr 24 2017 A cold front moving off the Downeast coast this morning will dissipate today. High pressure will build across the area tonight into Tuesday.
645 AM EDT Mon Apr 24 2017 High pressure will be in control across the area through tonight.
417 AM MDT Mon Apr 24 2017 Water vapor imagery showing weak disturbance moving across the northern mountains of colorado now and associated cold front sweeping southward across the eastern plains. Temperatures will be cooler today on the plains behind the cold front but still pleasant with readings near 70. Moisture associated with this system will both affect the high country and the plains, though downsloping off the Cheyenne Ridge will likely keep PoPs lower just south and into the Denver area for most of the day but increase them over the Palmer Ridge. Could 2 to 6 inches over the higher mountains, mainly east of the Divide, and see a trace to up to 2 inches south of the Denver area up over the Palmer Ridge and east across the plains of Elbert and Lincoln counties.
246 AM CDT Mon Apr 24 2017 Well it looks like the upper low just wont let go of precip chances for the area yet. As the upper low travels to the SE this morning, by mid day, it will take more of an easterly track, followed by slightly NE later this afternoon. This may bring yet another lobe of the upper low over the eastern zones, and provide enough lift for some afternoon showers on the Plateau. Should skies break up a bit earlier, afternoon sun should raise temps a bit more into the low 70s, but for now thinking cloud cover will hold and keep the area in the 60s.
WV imagery indicates a weak upper level ridge of high pressure shifting slowly eastward across the Central Plains. Near the surface, a lee side trough of low pressure is slowly strengthening across eastern Colorado. South to southeast winds will continue to increase through this afternoon, in response to lee trough deepening along I-25 in Colorado. Much warmer. Went several degrees above MOS guidance, with afternoon highs in the lower to mid 80s. Cooler with north winds.
620 AM EDT Mon Apr 24 2017 Aviation An area of high pressure will build into Ontario today. A low pressure system will attempt to move in from the west on Tuesday.
1232 AM CDT Mon Apr 24 2017 High pressure will build over the area through the period resulting in widespread VFR conditions.
Northwest winds around 10 knots with gusts in the 13-18 knot range are expected this afternoon behind a cold front. A ragged line of showers associated with a slow moving cold front will continue through south-central Georgia and the eastern Big Bend of Florida over the next few hours. In the wake of the front, lows will fall into the lower to middle 50s under cloudy skies. In the upper levels a closed low will be over GA on Monday. By Tuesday night ridging will be in place. Temps will be cooler with highs in the mid 70s on Monday and lower 80s on Tuesday.
337 AM EDT Mon Apr 24 2017 A cold front moving off the Downeast coast this morning will dissipate today. High pressure will build across the area tonight into Tuesday.
Low pressure centers over the Atlc waters east of central FL and along the SC coast will merge over the next 12-18H and accelerate away from the NE FL coast. A late season frontal boundary will slide across the forecast area today, bringing a shot of dry and cooler air this afternoon and into tonight. Tonight: a pleasantly cool evening is in store as temperatures dip into the M50s-L60s with cooler dryer air settling S into the region. Low pressure lifts farther up the east coast with westerly winds and mainly clear skies over the area behind it. On Wed, a lighter westerly wind component will allow a better defined afternoon sea breeze with highs topping out in the lower 80s at the coast but climbing into the mid/upper 80s inland.
240 AM EDT Mon Apr 24 2017 An area of upper level low pressure will continue moving slowly east across the deep south today, as drier air remains in place over the Ohio Valley. A mid-level ridge will gradually build into the area by the middle of the week, allowing for increasing temperatures and generally dry conditions.
Water vapor imagery depicts the upper low was curling slowly southeast through northern AL. Clouds will be slow to depart until very late this afternoon or early this evening as the low drops into southern GA.
400 AM EDT Mon Apr 24 2017 A dry cold front will pass southward across the North Country early this morning, bringing a northerly wind shift and slightly cooler temperatures.
The area of low pressure causing the next round of shower activity and breezy wind remains off the coast of northwest Washington, and is expected to move southeast and inland by early afternoon. Models are indicating that the area of low pressure will become an open wave by the late afternoon/early evening hours. The trough axis will move through the area late tonight. Cooler temperatures anticipated through the period.
338 AM PDT Mon Apr 24 2017 A low pressure system moving inland to the north today will bring stronger onshore flow with strong gusty west winds in the mountains and deserts.
At 4 am high pressure was centered near Bastrop and should be sliding out into the Gulf this afternoon which turn winds to the south and gradually increase this afternoon. Dry airmass over the area will warm up quickly and by afternoon should 5 degrees warmer or so.
Winds in the Guadalupe Mountains will approach High Wind Warning criteria Monday but the stronger winds will not arrive until Tuesday as a trough moves out of the Pacific Northwest and into the Central Rockies.
The light winds, clear sky, and low dewpoints should yield another seasonably cool night and went a degree or two below the cooler MAV guidance for tonight. Expect highs to range from the low to upper 70s. Gosselin Warmer and dry weather for Monday night and Tuesday, then the pattern gets more active for much of the rest of the forecast period. Convection will spread southeastward into at least northeast and central MO and west central IL Tuesday night as an upper level trough and associated cold front approaches the forecast area. The models depict increasing upper level divergence over our area ahead of the approaching upper level trough.
349 AM EDT Mon Apr 24 2017 Another quiet day around southeast MI as high pressure sandwiched in between a cutoff low to our south and the main baroclinic zone laid out to our north.
Slow moving upper low somewhere near the Tennessee/Alabama border continues to take its sweet time dropping into the Deep South, but in the last 2-3 hrs we have seen a dry slot punch well into central Kentucky. Surface analysis reveals a 1008mb low over northwestern Georgia with a cold front draped down into the Gulf of Mexico. Visible satellite loops show a nice "swirl" in the clouds over the lower Tennessee valley associated with the system.
Precip chances return to western Kansas late Tuesday as medium range models indicate an upper level trough of low pressure digging southeast across the Central Rockies into the Western High Plains early in the period, in turn creating an increasingly difluent southwest flow aloft across the region.
A closed upper level low will move through Georgia today. The surface cold front and associated deep moisture has pushed east of the area and will affect the Carolinas today. High temperatures are expected to be mainly in the lower to middle 70s.
248 AM CDT Mon Apr 24 2017 Water vapor imagery depicts the upper low was curling slowly southeast through northern AL. Clouds will be slow to depart until very late this afternoon or early this evening as the low drops into southern GA.
Cold front will continue to move from west to east across our forecast area this morning. Somewhat cooler temperatures today, though relatively mild for late April. Next push of colder air sweeps southward across our counties in the wake of another stronger cold front producing a quite cool day, especially across our northern counties from Douglas to Alliance. Flow aloft turns northwest with drying noted in the low and mid levels, thus will see a significant decrease in areal coverage of showers during the evening and late night hours.
Northwest winds around 10 knots with gusts in the 13-18 knot range are expected this afternoon behind a cold front. A closed upper level low will move through Georgia today. The surface cold front and associated deep moisture has pushed east of the area and will affect the Carolinas today. High temperatures are expected to be mainly in the lower to middle 70s.
The closed low over northern AL will drift SE across GA today and be located near the SC coast tonight. Moisture wrapping around the low will maintain overcast cloud cover for most of the area today.
Still expecting early morning lows in the low to mid-50s with a few isolated pockets dropping into the upper-40s if dewpoints can remain in the lower to mid-40s. Ideal radiational cooling tonight with clear skies and light winds will allow temperatures to fall into the lower to mid 50s most place. Temperatures will warm back to normal on Monday as an upper level short wave ridge moves across the region. A weak short wave trough moves across northern Coahuila on Monday and into the Brush Country Monday evening. Onshore flow will develop on Monday and continue through Monday night leading to much warmer low temperatures.
136 AM EDT Mon Apr 24 2017 High pressure is moving off the New England coast, yet it will still manage to keep dry and mild conditions going today with highs in the 60s to near 70.
152 AM EDT Mon Apr 24 2017 MVFR cigs are expected to develop at all terminals sites the remainder of the morning and lasting through at least 19Z as a cold front approaches and moves south through the region. Further upstream, a large closed upper low feature can be seen spinning over the TN valley this evening. Associated with this system, a surface cold front trails southward into the northeast Gulf of Mexico. However, further south from here, the shower activity becomes very limited over the NE Gulf as the convection becomes removed from the best synoptic lift/Qvector convergence ahead of the upper low, and the updrafts encounter fairly hostile thermodynamic conditions above 10,000 feet.
119 AM EDT Mon Apr 24 2017 High pressure will build into the region over the next couple of days, leading to dry conditions and a warming trend through mid week.
325 AM EDT Mon Apr 24 2017 Synopsis An area of high pressure will build into Ontario today. A low pressure system will attempt to move in from the west on Tuesday.
Upper low over n Al will move ese across central Ga today and into SC tonight. Cold front now entering western zones will move east across the area this morning shifting sw winds to the west and ending the chance of showers by late morning. Cooler and drier air will advect into the area today with cooler temperatures. Stacked low pressure system over the Carolinas will continue to move NE away from the region with high pressure ridge slowly building northward up the Florida Peninsula in its wake. The near breezy westerly flow on Tuesday will keep the Atlc Coast Sea breeze pinned at the coast and expect mostly sunny skies and highs generally in the lower/middle 80s all areas.
Well it looks like the upper low just wont let go of precip chances for the area yet. As the upper low travels to the SE this morning, by mid day, it will take more of an easterly track, followed by slightly NE later this afternoon. This may bring yet another lobe of the upper low over the eastern zones, and provide enough lift for some afternoon showers on the Plateau. Should skies break up a bit earlier, afternoon sun should raise temps a bit more into the low 70s, but for now thinking cloud cover will hold and keep the area in the 60s.
451 AM MDT Mon Apr 24 2017 Upper level analysis has broad ridge across the eastern CONUS with broad trof across the west. At the surface, low pressure is located across eastern Colorado, with an inverted trof extending northeast through south central South Dakota, and a cold front draped across Northeast Wyoming into southwest South Dakota. Upper flow remains southwesterly as west coast trof moves into the Pacific Northwest. High temperatures are only expected to be in the low 30s where precip is the heaviest, with some 40s possible across northwest SD and far south central SD.
352 AM EDT Mon Apr 24 2017 High pressure will be in control across the area through tonight.
250 AM CDT Mon Apr 24 2017 Prominent upper low over northern Alabama this morning will continue to sink southward today, finally loosening its grip on our area. Temperatures tonight should only drop off to the lower 50s as the southerly flow persists through the night. Upper low currently off the western tip of Washington will be dropping southeast into the 4-corners region by Tuesday afternoon, helping to carve out a significant trough over the Plains.
535 AM CDT Mon Apr 24 2017 Prominent upper low over northern Alabama this morning will continue to sink southward today, finally loosening its grip on our area. Temperatures tonight should only drop off to the lower 50s as the southerly flow persists through the night. Upper low currently off the western tip of Washington will be dropping southeast into the 4-corners region by Tuesday afternoon, helping to carve out a significant trough over the Plains.
1215 AM CDT Mon Apr 24 2017 Northeast winds decreasing this evening as high pressure settles over the area. After highs in the low 70s this afternoon, this should be sufficient for lows reaching near 40 degrees tonight, perhaps a few upper 30s. High pressure ridge axis stretching from the Southern Plains and into the Great Lakes this afternoon. Once again, ridge axis in the region will keep the winds light and a significant lack of cloud cover will set up a decent radiational cooling event. sunshine and increasingly southerly winds will keep the temps a few degrees warmer than today.
There should be a dry spell Monday night and the first part of Tuesday as high pressure aloft crosses the area.
343 AM CDT Mon Apr 24 2017 As we go throughout the day today, high temperatures will be well above normal with high temperatures ranging from the mid 80s to some areas reaching the lower 90s. Going into Tuesday, a cold front will work its way through the region. In-conjunction with the surface cold front, a rather strong mid level vorticity maximum will swing across the base of a mid level positive tilted trough.
High pressure is expected across the area through the early part of the week.
Concurrently, an UA trough will be pushing east-southeast to across the Four-Corners region thus veering near zonal flow aloft to the southwest, as well as deepening sfc lee troughing resulting in a tightened pressure gradient and subsequently, breezy southerly winds that may equate Lake Wind Advisory criteria tomorrow aftn.
Easterly gradient flow will freshen today in response to lee side troughing out across the Plains states. * None Another quiet day around southeast MI as high pressure sandwiched in between a cutoff low to our south and the main baroclinic zone laid out to our north.
The greatest threat for strong/severe thunderstorms should occur Tue Night when a strong & deep wave digs SW from an intense cyclone (centered over MN) to Kern MN. The passage of this wave will sweep a cold front SE across KS to produce much cooler weather Wed & Wed Night.
318 AM PDT Mon Apr 24 2017 storm system moving g inland into the PAC NW will bring a few showers to the Sierra today as the low moves inland and weakens. Eastern Pacific ridge will remain nearly stationary as a low center deepens over the Great Basin.
139 AM EDT Mon Apr 24 2017 An approaching low pressure system will slowly cross the region tonight through Monday night bringing showers and thunderstorms.
151 AM EDT Mon Apr 24 2017 High pressure will continue to work east across the region tonight and Monday as a cold front settles south into the Great Lakes. High pressure will regain control over the region as the front lifts back north Monday night.
507 AM EDT Mon Apr 24 2017 A surface analysis this morning reveals a complex mean sea level pressure pattern across the region, with a dumbbell-shaped low pressure area between the Georgia-South Carolina border and the northern Bahamas. A weak, non-frontal trough extends southward from the northern Bahamas to the northwestern Caribbean Sea, while a larger-scale frontal trough curves southwestward from southeastern Georgia to the southern Gulf of Mexico. The Keys remain in the warm sector at present, with current air temperatures in the mid 70s, with dewpoint temperatures in the lower 70s.
A surface trof of low pressure will organize over ern CO and ern NM on Monday, which will result in a tight pressure gradient and a corresponding increase in southwest winds along with attendant gusts by mid morning Monday. /Issued 356 PM CDT Sun Apr 23 2017/ Strengthening near-zonal mid-level flow will continue through Monday, with subsequent support for maintenance of lee trof.
Weak ridging will keep the short term dry other than perhaps a stray sprinkle or two in the Lake Cumberland region early this morning. Sunnier locations, such as from southern Indiana into north central Kentucky, should see temperatures rise into the lower 70s today. With the weak ridging moving in, the surface pressure gradient will be more relaxed resulting in lower wind speeds and less gustiness today compared to the past couple of days.
1113 PM MDT Sun Apr 23 2017 Upper flow is nearly zonal across the northern plains, and a trough is moving into the western CONUS, with the upper low just off the Pac NW coast. Fog over northwestern SD took a while to dissipate today, and with a cold front draped west to east across SD, have lowered expected highs to the north. Temperatures at 2PM range from the 40s across far northwestern SD to the lower 70s across parts of central SD. The 700 mb low is progged to move into northeastern WY by Tuesday morning, placing the higher QPF amounts across far northeastern WY and the Black Hills area.
expect the surface cold front to encroach on our local area with some modest elevated instability preceding its passage. With this cold front not expected to cross the local area until later in the day Tuesday. gradually diminishing by early afternoon as the pressure gradient begins to relax ahead of an approaching cold front. with northerly winds anticipated with the actual cold front just beyond the current valid period of the TAFs.
254 AM CDT Mon Apr 24 2017 Ridge axis extending from west central Illinois through central into southwest Missouri will drift eastward today. Wind will turn to the south-southeast after the ridge axis pases and Warm advection will allow temperatures to rise above yesterday's highs. This looks reasonable given the warm April sunshine and yesterday's temperatures in the low to mid 70s so stuck pretty close to warm MAV guidance today. Overnight lows MOS guidance lows in the upper 40s to low 50s look reasonable with slightly warmer temperatures in the urban areas of St.
410 AM CDT Mon Apr 24 2017 Latest surface analysis showed a 1006mb low over South Carolina with a cold front extending south through Florida and east Gulf of Mexico. A 1017mb high pressure was located over south Texas. Upper level low will continue to push east across Georgia today. Cold air advection will become nil as an upper level ridge axis starts to build in across the Lower Mississippi Valley today and tonight. Another upper level trough is expected to move across the Central Plains. This will yield a lee side trough over Central and Southern Plains.
Highs are expected in the lower to mid 80s. The stronger winds will keep the atmosphere mixed overnight, with lows in the lower to mid 60s across the Concho Valley and Big Country.
348 AM CDT Mon Apr 24 2017 A trough aloft digging over the western U.
I-35 terminals should be VFR throughout the TAF period, being impacted by the high clouds later in the day. Temperatures will begin to warm on Monday as southerly flow in the low-levels returns. Any convection associated with this feature should remain over the higher terrain of Mexico and we will continue the dry forecast.
The ridge centered just off the Baja Peninsula will reorient it's axis in a northeasterly direction and into our area over the next 36 hours as a strong system off the Pacific Northwest coast tries to push inland.
Cold front will pass through the entire region this afternoon. Cold front has entered northeast Oklahoma late this morning and will pass through the remainder of the area by late afternoon along with clearing skies.
Weather remains benign over the region due to high pressure in control, although dense fog development occurred this morning in portions of the San Joaquin Valley in Madera and Merced Counties. The ridge of high pressure over the southwestern US and northern Baja will continue to strengthen and provide additional warming to the central California interior.
1255 PM CST Tue Nov 21 2017 A dry sfc cold front continues to move through MO.
1137 AM CST Tue Nov 21 2017 18z TAF Issuance: VFR conditions expected with perhaps some mid to high level virga producing clouds along main cold front as it shifts south. /Issued 410 AM CST Tue Nov 21 2017/ A cold front will push through all of the Panhandles early this morning with winds shifting to the north and increasing to around 15 to 25 mph or 20 to 30 mph with gusts near 35 to 40 mph by mid to late morning. A dry northwesterly to northerly upper flow will prevail across the forecast area today through the weekend as an upper high dominates over northwest Mexico and Baja California.
Broken cirrus clouds are beginning to spread overhead from western KY and southern IL ahead of an approaching cold front. The cold front was draped from Lower Michigan through central Illinois, where radar showed a thin band of light precip pushing east. Highs will be in the low to mid 40s. High pressure will settle over the Ohio Valley Wednesday night, which will mean a cold start to Thanksgiving. Overnight lows should end up in the mid 20s for most, with typical cool spots possibly reaching the low 20s.
A cold front and prefrontal trough currently moving into the Hill Country sweep across South Central Texas early this evening. Weak isentropic lift briefly develops as an upper level trough and jet streak move across our area tonight. Somewhat breezy conditions develop after the frontal passage as high pressure builds in due to a tight surface pressure gradient and continue into Wednesday.