Aikyam-Lab/Synoptic-Bench huggingface dataset:
Remainder of area could see a shower or possible thunderstorm by this afternoon ahead of the approaching cold front expected to finally push through the area on Sunday. Models are in very good agreement on developing low pressure over the Great Plains today that will drive NE toward the Great Lakes tonight and finally provide enough of a push in the low to middle levels to finally move the frontal boundary across our area by Sunday afternoon.
The parent upper low in the Rockies is nudging the front our way for Sat w/ heating adding chance for severe TSTMS in the midday to sunset timeframe. Sfc Warm Front is very subtle tonight but appears to be located near a Tyler, Texas to El Dorado, Arkansas line. Until that time, have added areas of fog to the grids north of the warm front with some observing sites showing some patchy dense fog this evening.
A cold front will move through the area tonight, bringing a chance of severe thunderstorms, but also an end to the chance for heavy rainfall.
228 AM CST Sat Feb 24 2018 Weak low-level isentropic lift will sustain drizzle/freezing drizzle until around mid-morning, with surface wetbulb freezing line remaining stationary along the Kansas turnpike. This will erode the low clouds from west to east during the afternoon.
As an upper trough finally moves over and east of Texas today, rain chances will end, and breezy to windy conditions will dominate this afternoon. Also, some of our northwestern counties may have patches of blowing dust this afternoon, as dust blows into those counties from the Low Rolling Plains and Permian Basin.
Dry and warmer for the weekend with locally gusty northeast winds near the coastal foothills in the mornings and strong and gusty west winds in the mountains and deserts Saturday evening.
359 AM CST Sat Feb 24 2018 Water vapor loop indicated an upper level trough over the Desert Southwest. Upper trough will move into the Northern Plains Sat night.
After that, we should see a gradual increase in coverage through the day, primarily this afternoon and evening ahead of an approach cold front.
352 AM CST Sat Feb 24 2018 Deep trough over the southwestern portions of the country continues the southwesterly flow into the Midwest aloft. and being under the highest qpf through tonight. However, details are missing as the position of the low is still a bit amorphous with an elongated trough associated with this wave. For now, much of the forecast area is in a Marginal Risk, and the southeast in a Slight Risk, with the best chances to see some warmer temperatures.
110 PM EST Sun Nov 26 2017 Dry high pressure will build over the area this afternoon into the middle of the week.
Southwest flow ahead of a cold front located in western Oregon will bring limited moisture for light rain across the northern high terrain this afternoon. All surface winds shift to NNW around 10 kts with cold frontal passage between 06z and 15z. Pcpn will come later today and especially tonight as moisture advects in from the southwest and a cold front comes in from the west.
358 PM EST Sun Nov 26 2017 High pressure will build in from the southwest today and tonight while a weak cold front passes north of the region. High pressure will stay in control for most of the upcoming week with fair and seasonably mild weather. The low cloud deck will continue to melt away to the north as we go through the late afternoon and evening hours. Some clouds will flirt with northern areas as a weak cold front passes through NY.
/ISSUED 327 AM CST Sun Nov 26 2017/ High pressure was located over NW Texas early this morning and a weak boundary was draped across SE TX. Clear skies expected again tonight and Monday as high pressure is centered over the state. The high moves east late Monday and a south wind will develop.
As the axis of the high slides east tonight, a southerly wind direction will dominate, but the speeds will remain light.
A trough of low pressure approaching from the Rockies will kick out the ridge of high pressure in place currently. The most impactful phenomenon tomorrow will be the winds in the wake of the passing cold front. The rest of the region should expect generally 20-30 mph winds with gusts to the low 40s in some areas, especially where terrain funneling is likely. The downward trend in temperatures to more normal values for the season is still expected, and the roller coaster of trough followed by ridge followed by trough is still expected.
The cold front has now pushed to the south of our forecast area.
1026 AM MST Sun Nov 26 2017 Strong ridge of high pressure will shift to the east today with ridge axis nudging up against the Continental Divide by this evening.
307 PM CST Sun Nov 26 2017 Mainly dry weather should continue next several days as a few cold fronts cross the area but with limited moisture to work with. Continued mostly sunny and dry conditions are on tap for Monday with ridge of high pressure over the area.
Dry air is continuing to filter in from the NE behind the weak cold front that passed through the region overnight. /ISSUED 327 AM CST Sun Nov 26 2017/ High pressure was located over NW Texas early this morning and a weak boundary was draped across SE TX. Clear skies expected again tonight and Monday as high pressure is centered over the state. The high moves east late Monday and a south wind will develop.
341 PM EST Sun Nov 26 2017 Dry high pressure will build over the area tonight into the middle of the week.
Clear skies are in place across the Tennessee Valley as a 1028 mb area of high pressure builds east from Arkansas toward the area today. Based on current temperatures, believe highs in the lower 60s (60-63 degrees) are possible west of I-65 and in some locations in Cullman and Marshall counties. In northeastern Alabama and higher terrain above 1000 feet, highs in the mid to upper 50s look a bit more reasonable based on the cool start this morning (low temperatures in the lower to mid 30s).
As high pressure, currently centered over the Ozarks, continues pushing ewd, winds will gradually shift to the e/se by the end of the forecast period. A reinforcing area of high pressure will begin building into the region today in the wake of the front, though this airmass is not all that much cooler and will keep temperatures near normal to start the week.
1254 PM EST Sun Nov 26 2017 High pressure continues to build over the area providing dry conditions through the work week.
1247 PM EST Sun Nov 26 2017 High pressure builds back in from the west today through Monday.
253 PM EST Sun Nov 26 2017 High pressure over central NC will continue to bring dry conditions and seasonal to slightly above normal temperatures to the area for the rest of the weekend through the early portions of the week. Crystal clear day over central NC this afternoon as high pressure is building in from the southwest. These will recover after dark but in the meantime RHs in many locations are bone dry in the lower 20s. Expect lows near freezing. High pressure moves directly overhead on Monday and mid-level flow becomes more zonal allowing a warming trend to commence. This will bring high temperatures up into the low 60s in most locations as skies once again are expected to remain clear.
244 PM CST Sun Nov 26 2017 High pressure currently over the region this afternoon, will begin to shift east of the Ozarks tonight.
Later this afternoon, however, will see return flow winds set up across the CWA as a trough approaches from the west. 925mb temperatures rise into the teens, near 20 Celsius and combined with a westerly mixing wind immediately behind the trough Monday afternoon, expect surface temperatures to rise into the 60s and 70s, which is 25 to 35 degrees above normal for this time of the year.
Still went below most guidance for the lows overnight. Have gone with the models that have the higher wind speeds for Monday, and also raised the temperature over guidance. Focus still remains temps with PoPs still in the low chance range. These differences continue into the nrn trof Wed night into Thurs. The GFS has much more QPF with a much deeper trof, with good support from GEFS members. With fropa delayed slightly, have trended nrn portions of the CWA slightly warmer too. Tilly High pressure slides across the area today with a light south to southwest wind.
155 PM EST Sun Nov 26 2017 High pressure will lead to dry weather and a warming trend through the early part of the week. The high will support continued dry weather through Monday.
1130 AM CST Sun Nov 26 2017 Sunday's weather will be very similar to yesterday's, as the Northern Plains remains under the influence of a large upper level ridge and weak pressure gradient.
Dry weather will continue to prevail across the region as high pressure continues to filter into the ArkLaMiss. Lows will fall to the mid to low 30s areawide with the best chances of subfreezing temperatures occuring in East Central Mississippi.
244 PM CST Sun Nov 26 2017 Upper heights will remain largely unchanged through Monday, even as an upper ridge traverses the region complete with milder thicknesses. This bodes well for wildfire concerns over all but our extreme W-NW counties where the lowest relative humidities in the upper teens are likely.
158 PM EST Sun Nov 26 2017 High pressure will push across region providing for dry conditions into the middle of the work week.
Today, clearing skies from the west and the ridge of high pressure building up from the southwest will allow for another comfortable and warm day across northeast with light and variable winds. Model agreement shows a fairly significant increase in wind speeds as this cold front spreads through the region.
/issued 332 AM CST Sun Nov 26 2017/ Upper ridging is over the southwest CONUS and an upper trough is over the eastern CONUS. An upper trough off the west coast will move over the Intermountain West on Monday with south to southwest surface winds across the area.
A relatively mild overnight anticipated with warmer than normal air mass in place and strengthening surface lee troughing due to stronger winds aloft. Most low temperatures will remain above freezing. South of the cold front, temperatures will still reach well up into the 60s and 70s Sunday afternoon across far southeast Wyoming and the Nebraska Panhandle, with a possible 80 degrees at Sidney.
1225 PM EST Sun Nov 26 2017 Cooler today. High pressure drifts through with milder temperatures through the work week.
/issued 545 AM CST Sun Nov 26 2017/ For the 26/12Z TAF period, VFR conditions will prevail as high pressure at the surface settles in across the region.
1222 PM EST Sun Nov 26 2017 High pressure over central NC will continue to bring dry conditions and seasonal to slightly above normal temperatures to the area for the rest of the weekend through the early portions of the week.
/issued 253 AM EST Sun Nov 26 2017/ The latest short term models are in good agreement bringing a reinforcing dry cold front across South Florida today. Towards the end of the week, the models show another cold front moving towards South Florida. A quiet pattern is expected through much of the forecast period for the Atlantic and Gulf waters as high pressure remains in place over the area. A reinforcing cold front will move across the area today which will help keep a northerly wind flow in place through the beginning of the week.
227 PM CST Sun Nov 26 2017 Winds will lessen quickly late this afternoon into the evening hours, as an area of high pressure moves east into the Tennessee Valley. Slightly warmer temperatures are expected near the TN river and larger bodies of water (35 to 40 degrees). Most guidance forecasts easterly or southeasterly flow advecting warmer 925 mb temperatures in northern Alabama and Southern Middle Tennessee during the day on Monday.
1230 PM EST Sun Nov 26 2017 High pressure will keep dry conditions across the region into mid week.
218 PM EST Sun Nov 26 2017 High pressure will build in from the southwest today and tonight while a weak cold front passes north of the region. High pressure will stay in control for most of the upcoming week with fair and seasonably mild weather. The low cloud deck will continue to melt away to the north as we go through the late afternoon and evening hours. Some clouds will flirt with northern areas as a weak cold front passes through NY.
High pressure situated along the lower Miss Valley moves to the Carolinas by late Monday afternoon. Northeast winds increase some along the coast Monday along with some afternoon coastal clouds along the lower Ne Fl coast. Light winds and dry air mass in place will help promote radiational cooling well inland where min temps will fall into the lower to mid 40s. Coastal areas will be around 10 degrees warmer due to a light north northeast breeze.
High pressure will move from west to east across middle TN and set up return flow.
Surface analysis shows high pressure located over northeastern Oklahoma early this morning. This high will continue to move south and east through the day today. Mostly clear skies will aid in diurnal cooling and lows in the low 40s are expected across the area. Monday is still looking like near or record high temperatures with readings in the low to mid 70s expected. The pressure gradient increases during the day on Monday as low pressure deepens in the western high Plains as the upper level trough moves east into the Rockies.
240 PM MST Sun Nov 26 2017 The upper level ridge axis over the state will gradually shift east tonight, with an increasing west/southwesterly flow aloft through the day on Monday. Gusts in the 60 mph range will be possible above timberline and exposed eastern slopes, with gusts of 40 to 50 mph in the higher foothills. Although high level cloudiness is expected to increase ahead of the next approaching storm system, none of the models generate any qpf in the high country until Monday night.
120 PM CST Sun Nov 26 2017 A dry and mild air mass will dominate the early part of this week as high pressure moves east of our region.
241 PM CST Sun Nov 26 2017 The end of the weekend continues the trend of quite weather, that has dominated the region lately, with light southwest winds helping lift afternoon highs into the low 60s this afternoon. Looking at the larger picture, the warming winds we have today will persist through Monday as a trough moves across the West Coast, inducing a quickly adjustment in the upper level flow across the Central Plains from the northwest to the southwest, helping reinforce the southwest surface winds.
142 PM MST Sun Nov 26 2017 Upper level ridge continues to build across the northern Rockies into the northern plains. Upper ridge shifts eastward tonight, with low level thermal ridge located across the forecast area. Upper trof crosses the northern plains Monday, with cold front dropping through forecast area.
1049 AM CST Sun Nov 26 2017 Daytime highs today will be warmer than yesterday and Monday looks to be even warmer as new record highs could be realized.
Warm air advection returns in earnest on Monday as upper ridge builds a bit stronger. Increasing southwest winds should provide a warming regime that could make another run at high temperature records for the area, but some of this will depend on how much cloud cover tops ridge /lots upstream at moment/ and whether strong inversion holds full mixing potential back, even with breezy southwest winds. Sinsudal wave pattern will mean passing wave with ridge return every day or so.
1035 AM MST Sun Nov 26 2017 An upper level ridge building over the region, combined with a warm front lifting northward across the area today will lead to high temperatures of 20-25F degrees warmer than the average for this time of year. A splitting upper trough will affect the forecast area on Monday, with a cold front dropping southward across the northern plains. 3-5mb/3h pressure rises and steep low level lapse rates will result in a period of 25-35mph sustained winds behind the cold front.
158 PM CST Sun Nov 26 2017 Upper ridge centered over Mexico continue to dominate the wx pattern however the next upper trough will move ashore early Monday.
Winds will become gusty on Monday as well, as we will be in the warm sector ahead of an approaching cold front. Monday evening will feature an approaching upper-level trough moving through the Dakotas and into the Upper Midwest.
326 PM EST Sun Nov 26 2017 High pressure across the region will move off to the southeast. Southerly flow on the back side of the high will bring mild and dry conditions through mid week.
233 PM EST Sun Nov 26 2017 Cool and dry high pressure will build over the region and persist into midweek.
High pressure shifting to the south, so WSW winds expected to increase as surface pressure gradient tightens up. Gusty southwest winds are expected from late this morning through late afternoon in advance of a weak cold front that will approach the region.
Forecast - Through tonight and tomorrow, a high pressure system will move eastwards into the eastern United States and consolidate the high across Florida. Meanwhile, the low in the Gulf of Mexico will be driven slowly southwestward.
A weak cold front has pushed south of the area except across the southern Rio Grande Plains. This is keeping the low clouds in place longer, but should see skies become partly cloudy across the west as well. Cold front has pushed through our terminals with light northeasterly winds occurring. Early this morning shows a weak cold front making its way through the region, albeit slowly, with little airmass change behind it. Temperatures today will be slightly cooler than yesterday owing to weak cold air advection in the low- levels and more cloud cover. Expecting temperatures to be cooler but still several degrees above average tonight.
215 PM EST Sun Nov 26 2017 High pressure over central NC will continue to bring dry conditions and seasonal to slightly above normal temperatures to the area for the rest of the weekend through the early portions of the week.
232 PM CST Sun Nov 26 2017 (Tonight and Monday) An upper trough will move onshore along the West Coast tonight, then move east across the Intermountain West and Great Basin region on Monday. Temperatures will be warmer tonight, with lows in the upper 40s to around 50 degrees. A strengthening lee trough will result in breezy south winds developing on Monday, with gusts 20 to 25 mph. Two cold fronts will move across West Central Texas this week.
323 PM EST Sun Nov 26 2017 High pressure builds back in from the west tonight through Monday.
208 PM CST Sun Nov 26 2017 A ridge over the western 2/3 of the CONUS exists with an exiting trough over the eastern 1/3. The ridge will move east with the approaching system from located from British Columbia into the Pacific Northwest. The next trough is still on track to move onshore tonight and move east with a position over the Rockies on late tonight.
238 PM EST Sun Nov 26 2017 High pressure centered over Arkansas this afternoon will work its way east through the short term period to the mid-Atlantic coast. As it does so, winds will shift to southerly across the lower Ohio Valley, ushering in milder air.
1256 PM EST Sun Nov 26 2017 High pressure will support dry weather and moderating temperature through mid week. Building high pressure will shift low level flow to the west and eventually southwest, helping to dissipate the low clouds by later this afternoon.
A cold front has moved through and has provided the region some reinforcement of the cooler drier air this week.
High pressure currently in control of the weather over the lower Ohio River Valley this morning. Temperatures have dropped into the low 40s to upper 30s at this hour, and expect temperatures to fall near the freezing mark for most locations by sunrise. High pressure over the southern Plains will slide eastward today toward our region. Winds will gradually turn to the west as the high moves toward us. Surface winds will shift to the southwest, and we'll see some warmer temperatures during the day Monday with mostly sunny skies.
Onshore winds ramping up in pressure gradient between high pressure to our east and low pressure to our southwest. A vort max and wave of low pressure will accompany the upper jet. Some fog development tnt as the wave of low pressure slowly moves across the area within moist conditions.
Radar shows all echos to the east and south, along with above freezing sfc temperatures in my south central. Therefore any threat for freezing rain has ended there. Thus tempered down the freezing rain potential. Forecast soundings show snow as the dominate precip type today, with some light freezing rain/drizzle across Dickey, LaMoure and McIntosh Counties possible later this afternoon.
Precipitation chances will increase over the higher terrain this evening generally north of a line from McCall, ID to Baker City, OR, however most of the activity will remain to the north. Only threat for showers today will be across the West Central Mountains and into the higher elevations of northern Baker County.
Will continue the thinking of widespread 2 to 6 inches across the headlined area with the higher amounts in lakes country of MN. To the west across SE ND there exists a slight threat for some freezing rain or drizzle before ice nucleation aloft completes the seeder feeder process so a glaze of ice is possible before a change over to snow. Snow tapers off from west to east this evening with some patchy freezing drizzle possible in MN as low level stay saturated and lift diminishes. A trailing cold front will bring another round of wintry mix and rain to northeastern ND, the northern River Valley, and northwestern MN. While a mix of rain/snow/sleet is likely north of the Highway 2 corridor, forecast soundings suggest sufficient warming in the low and mid levels to support rain further south.
Low pressure in the OK Panhandle was beginning to pull deeper moisture out of the Gulf with dewpoints in the 60s as far north as OK. Temperatures across the dvn cwa early this morning were in the lower to mid 30s. Today: Weak low pressure and positive-tilt trough will spread rain into our sw cwa this morning, then continuing to push northeast over all of the cwa during the afternoon. Highs will range from the upper 30s to mid 40s in the deeper snowpack area, to the lower 50s elsewhere. 25 inches, and as weak low pressure tracks across the cwa.
/issued 354 AM CDT Mon Mar 26 2018/ Swly flow aloft continues to take shape across our region, as large-scale upper trof digs sewd across srn CA. However, as we move into Tuesday, a slow-moving cold front will begin to serve as a focus for more widespread convection, initially across portions of N TX/central OK. This will gradually spread ewd into our region as the now closed upper low/cold front inch ewd.
Low stratus and fog producing widespread IFR/MVFR (patchy LIFR) conditions continues through this morning as a cold front pushes through from east to west. Areas in far southwest Alabama and southeast Mississippi will see highs in the 70s and dewpoints in the low 60s, and much of the western Florida panhandle and south-central Alabama will see highs in the 60s and dewpoints in the upper 40s and 50s.
1120 AM EDT Mon Mar 26 2018 Update/Marine Winds will become southerly in advance of a cold front today and tonight. The south winds will bring in slightly warmer air and rain.
655 AM CDT Mon Mar 26 2018 A wet day is expected as closed low pressure across southwest KS opens and moves northeast, becoming an inverted trough/surface cold front through the day. We finally get to see the sun again on Tuesday with decreasing clouds, northwesterly surface winds, and highs in the upper 40s to mid 50s high high pressure moving in.
Upper level high pressure will continue building over NorCal Today and remain in place all week. Breezy north winds with a few gusts to 25 mph possible today in the Valley Redding-Sacramento- Stockton, as gradient tightens between building high and exiting trough over the Great Basin. Even warmer Tuesday and through the rest of the week with readings about 10 degrees above normal in the mid/upper 70's.