Aikyam-Lab/Synoptic-Bench huggingface dataset:
553 AM EDT Tue May 5 2020 Dry northeast flow emitting from strong high pressure over Ontario will persist through tonight, maintaining ceiling free skies below 10000 feet. Dry low level air from this high will also help keep any light shower activity to the south as low pressure tracks south of the Ohio River Valley. Mid/upper level cloudiness will reduce solar insolation, however, and lead to even cooler readings today with highs in the lower 50s (lower 40s along the immediate Lake Huron shoreline as the wind continues to feed onshore).
Low-level jet out ahead of this feature is helping to generate elevated showers and storms along the warm front. Our southern IN and northern KY counties likely will stay in the 50s and low 60s, whereas southern KY should see the lower 70s. Tonight, cold air advection behind the low will bring our temperatures down to around 40 for most locations. Starting with Wednesday, the region will be situated in the return flow of a departing low pressure system.
630 AM CDT Tue May 5 2020 The pressure gradient behind a cold front producing very gusty NE wind across the area. /issued 426 AM CDT Tue May 5 2020/ A strong cold front is currently blasting south through the southern Permian Basin west to near Guadalupe Pass. Much cooler and below normal temperatures are expected today and tonight behind the front as winds gradually diminish.
/Issued 334 AM CDT Tue May 5 2020/ Storms have finally scooted east of the forecast area, with a cooler (and a bit breezy) day in store.
A cold front will push through Tuesday night. A much cooler and drier airmass expect behind this system late week. Cold front will push through tonight with winds remaining elevated, keeping temperatures in the upper 50s and 60s overnight, although this front will usher in a much drier and cooler airmass behind it. Models remain fairly consistent that the cold front will push through the forecast area by Wednesday morning, keeping the area dry through the day.
446 AM CDT Tue May 5 2020 Today and Tonight: A cold front pushing southward into our region this morning will work its way across the forecast area by tonight. Moisture is still limited ahead of the cold front, as seen on the 00Z KJAN sounding with PWAT less than 1 inch. Northwest winds behind the front will bring drier and cooler air for tonight.
Storms have moved off to the south and east, and some lingering convection is just off to our north with the warm front. The cold front should move through starting later this morning through the afternoon, so the chances for showers and thunderstorms will be highest from mid morning through the early afternoon.
/issued 326 AM CDT Tue May 5 2020/ Cold front has pushed through all of the forecast area this morning and continues to push to the southwest. Temperatures will be 15 to 20 degrees cooler than yesterday and if the clouds continue to hang around, we may be even cooler than that.
Relatively cooler, drier air will allow temperatures tonight to dip below seasonal normals. Lows will be in the low to mid 50s tonight.
Warmer conds expected with 60s for highs most areas. Deep upper trough over the NE Pac will eject a stronger impulse, which will time over the area Wed night into Thurs. NE Pac deep upper trough will then support downstream ridging over western NOAM the remainder of the period, while blocking flow develops over the NW Atlantic. This will set up another round of central NOAM troughing, with a cold core trough settling into the upper Midwest and Great Lakes. The western extent of troughing is progged to back into the region.
Warmer and drier today under mostly clear skies as a ridge of high pressure builds over the Great Basin, placing the High Plains and adjacent High Terrain under the influence of a northwesterly flow aloft. A weak, dry cold front will pass through the region today around noon, with breezy westerly winds ahead of it, shifting to breezy and northwesterly in its wake. Temperatures will be near freezing again tonight as skies remain generally clear.
The remainder of today will be fairly pleasant with highs in the highs generally in the mid 70s. The cold front will only bring a slight reinforcing shot of cool air and high temperatures on Wednesday will be nearly similar, if not a few degrees cooler, than today.
458 AM CDT Tue May 5 2020 High pressure over northern Ontario was the main weather influence over the Northland this morning with a compact and strengthening area of low pressure centered near Sioux Falls, SD. An inverted trough extended northward from the low center across much of the Red River Valley where light rain was falling. Temperatures dip into the low to upper 30s. Highs trend a little warmer with reading in the low 50s near Lake Superior to the low 60s south.
657 AM CDT Tue May 5 2020 Quiet weather is expected for today and tonight as high pressure over the plains filters into the Ozarks today. High pressure will also allow winds to drop off with light northerly winds expected today and tonight. North westerly upper level flow will keep cooler weather filtering into the area from Canada through the remainder of the week and into the weekend.
906 AM EDT Tue May 5 2020 Stable dry conditions under high pressure covering the area will support ample sunshine and another very warm and dry day across the entire forecast area.
A cooler and drier day is in store in the wake of a cold front. /Issued 334 AM CDT Tue May 5 2020/ Storms have finally scooted east of the forecast area, with a cooler (and a bit breezy) day in store.
255 AM PDT Tue May 5 2020 High pressure centered over northern Baja will continue the warming trend with well above average high temperatures this week.
Wednesday should be sunny and a little warmer, with low relative humidity once again in the afternoon.
/issued 348 AM CDT Tue May 5 2020/ Wx map shows high pressure ridging across the Gulf providing continued southerly winds around 10-15 mph along and south of I-10 to the coast, around 5 mph further inland. Further north, a cold front is advancing across North Texas/Southeast Oklahoma. The upper air patter today will become more northwesterly over the Gulf States as a deep layer trough over Central and Eastern Canada and U.
623 AM CDT Tue May 5 2020 The short range will feature more chances for rain, and cooler than normal temperatures.
There is simply too much dry air being advected westward from high pressure over the Great Lakes. This will be governed by how much we mix, but this may transpire even with surface dew points in the lower 30s.
Patchy frost is favorable across western Nebraska tonight, since low temperatures will be in the low to mid 30s. There is no chance of precipitation Wednesday because of a Pacific high pressure system that will be pulled into the area. High temperatures should reach in the low to mid 60s. The temperature forecast is cooler then the guidance during the day and warmer at night. A high latitude blocking ridge will bring multiple cold fronts across the area over the next 7 days.
/issued 315 AM CDT Tue May 5 2020/ (Today and Tonight) As of 1 am, a cold front was moving into the I-20 corridor. With cooler air behind the front today, expect highs only in the upper 70s to low 80s. With the weak winds and clear skies tonight, there should be decent radiational cooling, resulting in lows tonight falling to the low 50s.
A cold front moving south the region from late this morning through this evening will bring a shift to westerly and then northwesterly winds. /NF/ Today and Tonight: A cold front pushing southward into our region this morning will work its way across the forecast area by tonight. Moisture is still limited ahead of the cold front, as seen on the 00Z KJAN sounding with PWAT less than 1 inch. Northwest winds behind the front will bring drier and cooler air for tonight.
High pressure over northern Ontario was the main weather influence over the Northland this morning with a compact and strengthening area of low pressure centered near Sioux Falls, SD. An inverted trough extended northward from the low center across much of the Red River Valley where light rain was falling. Temperatures dip into the low to upper 30s. Highs trend a little warmer with reading in the low 50s near Lake Superior to the low 60s south.
Broad low level ridging remains across the area and is associated with considerable dry air. Dew points remain in the upper 60s while temperatures are climbing into the lower 80s. Short Term Update - Ridging will continue to dominate Keys weather this afternoon, ensuring dry conditions and for the most part mostly clear skies. Wind will remain light and tend out of the southeast due to the proximity of the ridge and day time heating over Florida. A ridge axis across South Florida along with day time heating will keep winds light and broadly out of the southeast.
The cold front is currently analyzed over eastern Arkansas and will be downstream within the next few hours. An upper level ridge is located upstream over the west portion of CONUS. Northerly flow and weak CAA will bring cooler temperatures to the Mid-South today as we stay on the back side of an upper-level trough centered over eastern CONUS over the next several days.
Looking closer over the central plains, a wave was moving east across the mid MO river valley with an upper trough axis rotating through the eastern part of KS. At the surface, A frontal boundary had pushed into the Red River Valley as high pressure built in over the central high plains and dry air moved in from the northwest. For today, the expectation is for subsidence behind the upper trough axis to bring sunny skies to the area by the afternoon with chances for precip close to nil. So while the good insolation is expected to push afternoon temps into the lower 70s, windy conditions are likely to make it feel cooler.
519 AM MDT Tue May 5 2020 A low amplitude transitory ridge will move from the Intermountain West to high plains over the next 24 to 48 hours. The slightly cooler temperatures the past few days has allowed smaller streams and tributaries to respond with lower runoff from snowmelt. Models starting Wednesday night suggests a ridge to be centered over central CO with an approaching trough from the Pacific Northwest.
Winds will be out of the north for much of the forecast period after a cold front moves through the state.
A weak ridge axis stretches westward through the region from near the Bahamas, allowing light to gentle east to southeast breezes.
While temperatures will likely reach the lower 70s. The combination of these breezy winds and warmer temperatures could also result in a couple of hours of near critical fire weather conditions. With this cooler pattern.
Temperatures remain in the 60s to low 70s, and a cold front is beginning to push east toward the I-65 corridor. CAMs are not very impressed with the rigor of convection late this morning into the early afternoon, and with the cold front sweeping through already, the severe weather threat across eastern Middle TN will remain low. A low pressure system and cold front will cross the area during this taf period.
614 AM CDT Tue May 5 2020 (This evening through Tuesday) As of 19Z, the prefrontal trough extended from Osage - Canadian - Beckham counties with northwesterly winds behind the axis. The cold front was located near the OK/KS border with temperatures in the 60s behind the front. Northerly winds and strong cold air advection will keep temperatures much cooler tomorrow - maximum temperatures will be in the 70s and near 80 degrees (SW Oklahoma and western north TX).
426 AM CDT Tue May 5 2020 A strong cold front is currently blasting south through the southern Permian Basin west to near Guadalupe Pass. Much cooler and below normal temperatures are expected today and tonight behind the front as winds gradually diminish.
Another "FEW CU" day in store as a broad hi pres ridge draped over the Nrn Bahamas/central FL remains the primary WX feature for the CWA. A light SWrly breeze around the base of the ridge will push aftn temps into the U80s/L90s. Very good boating conds this aftn as a broad hi pres ridge extending from the Nrn Bahamas acrs central FL generates a light to gentle SWrly breeze.
434 AM MDT Tue May 5 2020 After a cold morning, temperatures will warm generally into the 60s across the area this afternoon, with upper ridging resulting in mainly dry conditions. An associated cold front will sweep from west to east across the area late Wednesday afternoon.
Clouds will persist today with increasing rain shower chances mainly south of PGH as low pressure moves up the Ohio River Valley. More widespread coverage and a mix/change to snow is expected Wednesday as a deepening upper low transitions across the region.
Until then with prolonged 700mb omega and inverted trough continuing to provide lift expecting showers to continue in the valley and eastern ND. This will help daytime highs recover about 10 to 15 degrees warmer than today. Upper level low over southern Hudson Bay will move into southeast Ontario during the period. System will send cooler air mainly over the Great Lakes with the forecast area on the western edge of the cold air surge. Cold front will move south across the Great Lakes and backdoor the area on Wed night and Thu. Another cold front will back door the area Thu night.
Temperatures will remain cooler near the lake again with the continuing easterly winds perhaps becoming a bit breezy at times.
A few sprinkles will be possible across northern and central Oklahoma this morning as southern periphery of northern stream s/wv trough interacts with mid-level moist layer.
High pressure will settle in over the area later tonight and will be the dominant feature over the area until late Wednesday night when an approaching frontal boundary reaches the western part of the state, with precipitation ahead of it possibly reaching the far western CWA after midnight. Highs on Wednesday will be in the low to mid 60s, with lows Wednesday night in the upper 30s to lower 40s.
ABM Chattanooga Airport, TN 50 64 43 69 50 / 20 10 0 0 20 Knoxville McGhee Tyson Airport, TN 49 58 39 66 48 / 30 20 0 0 20 Oak Ridge, TN 47 59 39 67 48 / 20 20 0 0 20 Tri Cities Airport, TN 45 54 34 62 43 / 40 50 10 0 20.
1115 AM MDT Tue May 5 2020 A low amplitude transitory ridge will move from the Intermountain West to high plains over the next 24 to 48 hours. The slightly cooler temperatures the past few days has allowed smaller streams and tributaries to respond with lower runoff from snowmelt. Models starting Wednesday night suggests a ridge to be centered over central CO with an approaching trough from the Pacific Northwest.
IFR CIGS possible again tonight with the highest chances at TLH and VLD although like last night, those CIGS may spread farther than currently forecast. Patchy fog in the morning will give way to a mostly sunny day with highs once again touching the low 90s across the area. This will give way to the weak cold front that is expected to approach the region from the west late Today bringing the chance for an isolated shower or two in the early evening hours. With mid level dry air in place coupled with the weak forcing from the cold front, any showers that do develop will be shortlived.
1140 AM MDT Tue May 5 2020 After a cold morning, temperatures will warm generally into the 60s across the area this afternoon, with upper ridging resulting in mainly dry conditions. An associated cold front will sweep from west to east across the area late Wednesday afternoon.
The cold front currently extends from north Mississippi southwest across southeast Arkansas this morning, and will continue to move southeast through the afternoon hours. Prior discussion below: Today and Tonight: A cold front pushing southward into our region this morning will work its way across the forecast area by tonight. Moisture is still limited ahead of the cold front, as seen on the 00Z KJAN sounding with PWAT less than 1 inch. Northwest winds behind the front will bring drier and cooler air for tonight.
Coverage should remain scattered as the low levels are quite dry (dew point depressions 30+ F), and begin to taper after sunset. Blended in some cooler guidance for lows ranging from around 30F in the panhandle to upper 30s north central. Negligible temperature advection occurs at H85 with a weak ridge axis bisecting the forecast area. Highs will generally be in the lower/mid 60s, similar to today.
This along with a reinforcing cold front will provide enough lift for a chance of showers later this evening and overnight.
Otherwise, relatively weak winds will clock around through the period as flow briefly comes around only to be turned north by another cold front late in TAF period. Forecast soundings are very dry in the low levels (inverted-v) with dewpoints this afternoon expected to be in the 20s.
Radar showing the showers hanging on across areas mainly southwest of Madison, with dry east to northeast flow in the low levels keeping the rest of the area dry. May see some graupel with the showers, as freezing levels are rather low. Highs should reach the lower to middle 60s inland, with a lake breeze keeping lakeshore areas cooler.
350 PM CDT Tue May 5 2020 Drier air will settle over the Mid-South tonight in the wake of the cold front that moved through the area earlier today. Expect generally benign and cooler weather conditions across the region Wednesday. A weak wave moving across the Upper OH Valley will drive a reinforcing cold front into the area tomorrow.
255 PM CDT Tue May 5 2020 The cold front has kept temps moderately cooler today with highs in the low/mid 70s. Temps will begin to warm tomorrow as upper ridging pushes closer to the region. A dome of high pressure persist over northwestern Mexico with a high amplitude ridge extending into northern Alberta and beyond.
Upper-level ridge building across the region overnight to bring mostly clear skies areawide. Otherwise, stable conditions expected on Wednesday night with light and variable winds and clear skies allowing for temperatures to fall into the lower 50s.
Light winds and cool conditions tonight with slightly warmer and light winds tomorrow.
Hedged towards the warmer guidance for high temperature on Wednesday.
This trough will come across dry with no precipitation expected. As the above mentioned trough dives southeast across Montana and Wyoming, the high pressure ridge will amplify over the west coast, switching the flow to northwest across our CWA.
The short range will feature more chances for rain, and cooler than normal temperatures.
124 PM CDT Tue May 5 2020 Updated for 18Z aviation discussion 18Z TAF discussion: A mix of VFR/MVFR/IFR conditions prevail across TAF sites this afternoon as a cold front sweeps southeast across the area. /15/ The cold front currently extends from north Mississippi southwest across southeast Arkansas this morning, and will continue to move southeast through the afternoon hours. Prior discussion below: Today and Tonight: A cold front pushing southward into our region this morning will work its way across the forecast area by tonight. Moisture is still limited ahead of the cold front, as seen on the 00Z KJAN sounding with PWAT less than 1 inch. Northwest winds behind the front will bring drier and cooler air for tonight.
129 PM EDT Tue May 5 2020 Warm front near the NC/SC border and a low pressure system approaching from the Upstate may result in severe weather threat this evening. The low pressure system will move off the coast late tonight and cooler and drier air will spread into the area through the mid week.
Cooler and drier conditions are expected in the wake of the cold front on Wednesday, with highs in the mid to upper 70s for the interior portions of southeast Mississippi and southwest /south-central Alabama. Meanwhile, highs will be warmer towards the coast, with temperatures for coastal Alabama and the northwest Florida panhandle in the lower 80s Wednesday afternoon.
A cold front is moving into east Tennessee while the air behind it is attempting to dry out. High temperatures will be cooler tomorrow by 10 to 15 degrees, and winds 10 to 20 mph may make it feel more like fall than the first week of May.
As high pressure and cooler air builds over the area, winds will diminish this evening. Lows tonight will be much cooler than those usual, for early May. For Wednesday, surface winds, from the south, will return to West Central Texas, and that will signal the start of another warm-up; nevertheless, highs will be much cooler than those of the last several days and very near those more usual for this time of year.
A weak cold front will move into northern portions of Oklahoma early tomorrow morning, with main impact being shift in wind direction back north north/northeast for a time across northern and central Oklahoma. Frontolysis will occur through the day Wednesday as lower level ridge shifts to the lower MS Valley and pressure falls occur across the southern High Plains. Temperatures Wednesday expected to be a little warmer than today, very close to average.
The cold front is currently just north of Brush Country slowly making its way south. The cold front will continue to push south through Brush Country and the Victoria Crossroads later this afternoon and through the Coastal Bend tonight. Temperatures behind the front are trending cooler than previously anticipated with tomorrows highs ranging between the upper 70s to mid 80s from east to west. High pressure will settle in behind the front which will result in a partly cloudy to mostly sunny day tomorrow.
85h temps in SE NM/wrn PB may climb to 30-32C and with downslope winds high temps will climb to 100-105 there, most other areas 95-100, except warmer along the Rio Grande. A little warmer Sat, but still pleasant temps.
332 PM CDT Tue May 5 2020 An upper level trough is moving across the upper Mississippi River Valley. A cold front associated with this feature is currently in north Louisiana and will move across the CWA this evening and tonight.
Pattern is setting up to be a persistent ridge in the western United States with general troughing in roughly the the eastern half to two thirds of the country.
Temperatures today have varied considerably depending on where one is at, as areas near the TN border currently have readings in the upper 60s and low 70s, while locations north of the Ohio River are struggling to rise above the low 50s. The low pressure currently centered over eastern KY will gradually push eastward this afternoon toward the Appalachians and drag a cold front in its wake.
Upper level ridging will bring warmer temperatures today ahead of the next cold front. The next cold front arrives early Wednesday morning near Burns and Baker and moves across the Idaho zones midday Wednesday. Showers and gusty winds expected along the cold front windy conditions behind the front.
Temperatures remain in the 60s to low 70s, and a cold front is beginning to push east toward the I-65 corridor. CAMs are not very impressed with the rigor of convection late this morning into the early afternoon, and with the cold front sweeping through already, the severe weather threat across eastern Middle TN will remain low.
1205 PM CDT Tue May 5 2020 Quiet weather is expected for today and tonight as high pressure over the plains filters into the Ozarks today. High pressure will also allow winds to drop off with light northerly winds expected today and tonight. North westerly upper level flow will keep cooler weather filtering into the area from Canada through the remainder of the week and into the weekend.