Aikyam-Lab/Synoptic-Bench huggingface dataset:
Approaching cold front will tighten low level pressure gradient resulting in strong gusty winds by this afternoon.
There may be a brief wintry mix at the onset this morning but travel issues are not expected as temperatures stay above freezing. There will be a break from the rain early this coming week as an upper trof lifts northeast and allows a dry pattern to prevail for 3 days.
Snow levels are low enough to allow for snow even into the lowest valley locations. The higher terrain is expected to see periods of moderate to heavy snow all day Sunday.
944 AM CST Sat Feb 24 2018 A warm front currently stretches from near Batesville, Arkansas to Paducah, Kentucky this morning. Although, the best chances for severe weather will come later in the afternoon with the expected line of convection ahead of the cold front. tapering off to the low 50s in Northwest Arkansas.
Warm frontogenesis is currently underway across Middle Tennessee as a strong low pressure system develops over the southern Plains. The warm front will gradually lift northward today as the aforementioned low center moves toward the northeast to near STL by 00Z Sunday. In addition, a highly-sheared low-level wind profile will contribute to 0-3 km helicity values of 100-200 today, increasing to 400-500 during the evening as the low-level jet intensifies just ahead of the cold front.
It seems unlikely that conditions will improve all that much today, as winds are expected to remain strong and temperatures will remain below freezing. Have upgraded the High Wind Watch to a High Wind Warning starting at 15z. Will leave the High Wind Watch in place for now. Our local probability guidance is on the low side, but the statistical model likely is not capturing 55 knot flow just off the surface. Added central Laramie county & the city of Cheyenne to the High Wind Warning. Removed the High Wind Watch from the Saturday night time frame as strong winds appear unlikely at that time.
A Pacific cold front will quickly move through the area this morning, with gradually clearing skies and visibilities behind it. 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.
Otherwise, building high pressure will gradually depress the snow showers and gust potential through the evening and into the overnight.
A deepening 500-mb trough will continue to eject northeastward from the Great Lakes into southern Quebec today, with winds aloft across the TN Valley slowly veering to the west-northwest as this occurs. At the surface, a weakening ridge of high pressure will continue to build southeastward from the central Plains into the mid- MS Valley this afternoon, with gusty north-northwest winds expected to slowly subside by late afternoon. The high moves east of the area during the day Thursday allowing for a gradual shift in winds back to the south. Highs on Thursday remain below normal in the low to mid 60s.
However, the high temperature forecast for today was left intact.
SHORT TERM (Tonight through Thursday Night): In the wake of the fropa earlier today, the combination of the surface troffing near the Lower TX coastline, areas of 500 mb PV moving over the RGV in addition to lingering post frontal moisture will maintain the chc of more stratiform rainfall over much of the BRO CWA this evening and tonight. This rainfall will then start to taper off late Thurs and Thurs Night as the surface troffing dissipates and the atms starts drying out somewhat. The latest LAPS CAPE values show that the instability has decreased significantly as the cooler surface ridging continues building over the region.
/issued 358 AM CDT Wed Apr 4 2018/ Upper ridging building in from the west will keep the region on the east side of the ridge for the next few days.
241 PM EDT Wed Apr 4 2018 Cold front will continue moving southeast across forecast area this afternoon. High pressure builds north of the area Thursday, with an onshore flow pattern setting up. Latest guidance indicates dry conditions for forecast area, with cooler high temps 65-70 coast, 70-75 inland se GA and northern counties of ne FL, mid-upr 70s southern counties.
The story for the rest of this afternoon will be with the higher south winds, low relative humidity values, and red flag warning conditions because of it. Winds will continue to blow up to 30-35mph through sunset under a tight pressure gradient in between a high pressure center to the east and an approaching low pressure system to the west. The high pressure will keep dry conditions and mostly clear skies through tonight. A weak cold front turns stationary in central Kansas and with sunny skies through the day temperatures should make it to around 70.
450 PM EDT Wed Apr 4 2018 A cold front will cross the region this evening bringing strong winds, especially across the higher terrain.
429 PM EDT Wed Apr 4 2018 A cold front currently moving into the Midlands will move off the coast this evening.
Latest rap and satellite imagery showed an upper flat trough over the Mississippi Valley Region. So we may not decouple completely in the low levels. Readings will be from the middle 60s to the lower 70s. With 30s and 40s dewpoints minimum humidity will dip into the lower to middle 20s across portions of the east.
/ISSUED 504 AM CDT Wed Apr 4 2018/ Cooler and drier air is making its way into SE TX this morning in the wake of the overnight cold front and its associated storms. We will be seeing a series of cold fronts sweep across the area (some with rain, some without) through this forecast cycle. All of this appears to be courtesy of the persistent NW flow aloft as the weak ridging out west holds in place. The next cold front is progged for Fri night/Sat morning as scattered POPS return to the area. ) The next cold front is still progged for Mon and should be relatively dry, given the shorter return moisture timing. High pressure will quickly slide east turning winds east and then southeast tonight/Thursday.
Updated aviation discussion The storm track will remain well to the north through the week resulting in dry conditions and warmer than average temperatures. Highs temperatures in the lower 90s will be common across the lower deserts.
233 PM MDT Wed Apr 4 2018 Northwest flow aloft will continue over the central plains downstream of a ridge axis centered over the Great Basin. A weak cold front will slide into the local area during the day on Thursday. However, it will have minimal impact, with only slightly cooler temperatures north and east of the front.
230 PM CDT Wed Apr 4 2018 Forecast highlights in the short term period will be a round of snow tonight/Thursday AM followed by cooler temperatures and breezy conditions for Thursday daytime. Following the wave a sfc cold front will push southeast through the area Thu morning/aft, bringing a period of breezy northwest winds and a reinforced shot of cold air.
318 PM EDT Wed Apr 4 2018 Overall a quiet few days on tap with mostly clear skies and freezing or near freezing temperatures expect tomorrow morning.
Southwest to west winds this afternoon will become north and then northeast tonight and into tomorrow behind a passing cold front.
Northwest flow aloft will prevail today while an upper level ridge resides over the west coast. IR and water vapor satellite imagery shows a lot of mid and upper level moisture moving through this ridge. In addition a stronger cold front will eventually move across nern CO by midday Fri with upslope flow developing. This will allow for warmer temps. For Sat night into Sun an upper level trough will move quickly across the area with decent cold air advection. Across nern CO with favorable lapse rates in place may see a few showers and possibly a tstm as the upper level trough moves across. For Tue an upper level ridge will be over the area with dry conditions and above normal temperatures.
A warm front is moving through northeast OR and eastern WA this morning. There will be weak ridging tonight with continued mid and high level clouds and a pause in the shower activity.
WNW flow aloft will be the dominate upper level wind pattern with periodic (mainly) dry cold fronts noted.
412 PM EDT Wed Apr 4 2018 Low pressure will intensify and move northeast of the area tonight. High pressure builds south of the region on Thursday. Precipitation has transitioned to sleet and rain as far north as portions of Northern Aroostook as of late this afternoon, as warmer air has managed to punch northward. Otherwise, expect precipitation to end across the region early this evening as low pressure continues to intensify to our northeast. As the low intensifies later tonight, gusty west winds will develop across the region. The best chance for these stronger winds will be across the higher terrain areas.
/issued 313 PM CDT Wed Apr 4 2018/ In the wake of yesterday's strong cold front, temperatures this afternoon are much cooler across Southeast New Mexico and West Texas, with most locations on their way to reaching highs only in the 60s and 70s, a little bit below normal. However, tonight will still be chilly, with lows ranging from the lower 40s to the middle 50s.
Mixing of stronger winds occurred along and behind the cold front, but strong CAA was allowing the mixing to continue with several spots along and east of I-69 seeing sustained winds in the 25 to over 30 mph range and gusts to 45 mph (or even slightly higher). Precip and winds will all begin to calm down into this afternoon and tonight as the low quickly moves away.
Some mid/high level clouds will likely increase in at least the southwest tonight ahead of an approaching trough of low pressure. The trough will slide through Thursday afternoon into evening, bringing precipitation chances to southern Wisconsin. May see a little rain with snow in the afternoon and early evening given surface temps above freezing. Higher precip rates will likely be snow though due to cooling in the lower levels.
517 PM EDT Wed Apr 4 2018 A cold front currently moving into the Midlands will move off the coast this evening.
Latest satellite loop was showing quite a bit of standing lenticular clouds developing along the higher terrain west of the Laramie Range. If these clouds do not hinder solar radiation this afternoon, we may see some good mixing once again across much of southeast Wyoming, but it will be warmer than yesterday.
313 PM CDT Wed Apr 4 2018 In the wake of yesterday's strong cold front, temperatures this afternoon are much cooler across Southeast New Mexico and West Texas, with most locations on their way to reaching highs only in the 60s and 70s, a little bit below normal. However, tonight will still be chilly, with lows ranging from the lower 40s to the middle 50s.
117 PM CDT Wed Apr 4 2018 Raised the high temperatures in the northern Red River Valley for today, as it is a couple of degrees warmer than expected right now. The southern Red River Valley should remain sunny through the afternoon, but highs will be cooler than in the northern valley due to the greater snowpack. Highs today may reach freezing for some locations that clear out and haven't received recent snowfall. Lows tonight should be "warmer" than recent nights, but still in the 10-15F range for most locations.
350 PM CDT Wed Apr 4 2018 Widespread frost/freezing still anticipated later tonight as chilly high pressure settles into the lower OH Valley.
Temperatures across the area will continue slightly warmer than normal.
Cloud cover will be increasing from the west around sunrise, so this may hold temperatures just a few degrees warmer across portions of East Texas.
South winds are not expected to increase much until after daybreak Thursday, so a lack of cloudiness could drop min temps for Thursdays as much as 10 degrees cooler than nearby cloudy areas.
High pressure over the Southern Plains will continue to build into the forecast area this afternoon and tonight bringing in a dry airmass and VFR conditions. High pressure will begin to move off to the east on Thursday, with winds becoming more easterly during the morning hours. Thereafter, the high will settle southward further, relaxing the winds fairly rapidly late this afternoon and evening. Lafayette is a bit warmer at 64 over 64 and finally AEX is 56 over 49 degrees. As the ridge builds overhead. high pressure at sfc is slipping down into the central US. Afternoon highs will be a bit cooler than yesterday "mid 60s to near 70" and the winds will be brisk at times especially along the coastal counties and parishes.
The better performing bias corrected grids the past 5 days are a few degrees cooler. could see breezy northwest winds during the day as some slightly cooler air moves in. 850mb temperatures and bias corrected grids from the past 5 days support highs ranging from the low 60s along the KS/NE border to around 70/low 70s from Leoti to Tribune.
335 PM CDT Wed Apr 4 2018 Well below normal min temps again tonight, though any freezing temps are expected to be isolated and confined to the coldest valleys.
Current temperatures are very mild and range from the lower to mid 30s in the colder mountain valleys to the mid 50s to lower 60s across the Central Valley. Dry and mild, albeit with mostly cloudy skies, weather will continue across the region today as high pressure gradually flattens. Then it will turn quite wet on Fri and into the weekend as a highly anomalous TPW plume becomes entrained into the WSWly flow ahead of an approaching Ern Pac trof. The Pacific Jet at the base of the trof will lift NEwd into the Pac NW and will move across Norcal on Sat focusing the TPW plume/AR into our CWA.
Early this afternoon the cold front was located roughly from just west of Albany, GA swwd to near Panama City. Look for the rain to end across the eastern portions of our region by evening along with gradually clearing skies and cooler temperatures with lows by daybreak in the lower to mid 40s most areas.
149 PM EDT Wed Apr 4 2018 High pressure will build in the lower Ohio Valley today and then track east through the Ohio and Tennessee Valleys tonight and early Thursday.
108 PM EDT Wed Apr 4 2018 A cold front currently moving into the Upstate will move through the forecast area this morning along with showers and a few thunderstorms.
Weakening gradient over the area along with development of surface based inversion after midnight will have winds diminishing and allow temps to drop into the low 20s tonight.
254 PM CDT Wed Apr 4 2018 Main concerns in this forecast cycle are lows tonight with spotty freezing temperatures over parts of northern AR.
237 PM EDT Wed Apr 4 2018 High pressure passes south through Thursday.
338 PM EDT Wed Apr 4 2018 High pressure will be in place across the region tonight. A weak area of low pressure will bring the chance for some light precipitation mainly along and north of Interstate 70 Thursday evening into Thursday night.
/issued 328 AM CDT Wed Apr 4 2018/ Today will start off chilly, with temperatures in the low 30s this morning warming to the low 60s this afternoon. Surface winds will shift to the south today and then to the southwest as lee troughing strengthens on Thursday. Downsloping winds will help warm temperatures to the the low 80s on Thursday afternoon.
300 PM EDT Wed Apr 4 2018 Under mostly sunny skies and light and variable winds, temperatures are in the lower to mid 80 along the island chain. Within a zonal westerly flow in the mid and upper levels, a decaying cool front will drop southward and dissipate over south Florida tonight and Thursday, as high pressure bridges over and moves swiftly into the Southeast United States on Thursday.
A storm system will graze northeast Utah and southwest Wyoming today, bringing cooler air to the region.
Get out and enjoy it while you can today, as the arrival of a strong cold front tomorrow will allow temperatures to fall during the day. The exception being northeast MS where the front won't arrive until early afternoon allowing temps to reach the the low 70s.
Issued by National Weather Service CARIBOU ME 309 PM EDT Thu Oct 26 2017 Low pressure will move across the area this evening then exit the area.
213 PM CDT Thu Oct 26 2017 Warm sunny day across the area, but with big changes to come as the strongest cold front of the season barreling down into the central plains.
333 PM CDT Thu Oct 26 2017 Tonight and Friday Biggest issue is the strong cold front that will move across the area tonight.
Brief ridging will result in slightly warmer conditions today and sunny skies in the wake of the first frost of the season.
1240 PM CDT Thu Oct 26 2017 The main story of today will be the cold front sweeping through the area leading to a widespread freeze tonight.
238 PM EDT Thu Oct 26 2017 High pressure today into tonight.
Dewpoints in the lower to middle 40s are leading to humidity values in the 25-35 percent range. A large trough axis can be seen entering the northern plains this afternoon on water vapor satellite and this system will be responsible for the coldest front of the season. Some freezing temperatures are possible for the Hill Country and a freeze warning may be needed tomorrow.
629 PM EDT Thu Oct 26 2017 Cool high pressure crossing the region will move offshore.
635 PM EDT Thu Oct 26 2017 Low pressure will move across the area this evening then exit the area.
145 PM EDT Thu Oct 26 2017 Cool high pressure crossing the region will move offshore.
Friday, expect another day of sunny conditions as a cold front approaches from the northwest.
Strong surface cold front now over Kansas will quickly push through the forecast area between 00Z-06Z this evening.
Small Craft Advisory is in effect until Friday morning and may be extended to account for the strong winds behind the cold front. Cloud coverage is expected increase ahead and along the cold front. GFS/ECMWF models depict the mid-level trough digging southward across the north central CONUS overnight ushering in the coldest air of the season. The strong cold front will start to push into South Texas just after sunrise Friday morning and reach the coast and move offshore in the late morning/early afternoon. Drier, breezy, and cooler conditions will follow behind the front.
242 PM EDT Thu Oct 26 2017 Rain will develop by Friday afternoon along and east of I-69 and continue through evening before diminishing from west to east overnight as a strong cold front moves through the area. Sw trough over nw MN will continue to amplify sharply sewd into ern WI this period. Sfc cold front will sharpen in tandem as it edges ewd into cntrl OH Fri evening. WI sw will liftout through cntrl ON Sat as respectable low level thermal trough deepens across the wrn lakes.
302 PM CDT Thu Oct 26 2017 The 12Z guidance continues to bring the cold front into our region late tonight around 09Z, and then pushes it out of the area around 18Z Friday. Good dynamics are expected behind the front as a rather strong trough begins to push east out of the Plains and toward our region.
/issued 1143 AM EDT Thu Oct 26 2017/ Well behind the cold front, mild temperatures and relatively light north northeast winds have prevailed across the peninsula.
Expect pleasant weather to continue this afternoon and into the night as synoptic ridging causes lasting subsidence, dew points subdued in the 50s and 60s, and cool northeasterly breezes give the Florida Keys a taste of autumn. Parts of the island chain will dip back into the 60s again tonight, though expect a low near 70 for the Lower Keys.
Upper ridge building back into the region with northerly flow.
656 PM EDT Thu Oct 26 2017 Cool high pressure crossing the region will move offshore.
This high will move east of the area and a southerly flow will develop. As a cold front moves into the area later Friday, rain is expected to develop across the entire region Friday evening.
Expecting lighter winds than of late, with highs across the plains only reaching the low to mid 40s.
403 PM CDT Thu Oct 26 2017 The approaching cold frontal boundary that is currently located across the southern counties of the Texas Panhandle will provide a weather change for the end of the work week. There may be a pre-frontal trough just ahead of the main boundary that shifts winds around to the north a couple of hours ahead of the main front. The main cold front is forecast to pass across the BCS area between 11 and 13Z.
SHORT TERM (Tonight through Friday Night): The major 500 mb trough axis digging across the central portion of the country will continue to push a strong cold front down into the central and south TX throughout tonight and tomorrow. The short range model guidance is pretty consistent in pushing through the lower RGV and coastal counties tomorrow afternoon with the front clearing the northern and western counties a bit earlier tomorrow. Overall moisture return ahead of this 500 mb trough and associated cold front will not be very significant but may be enough for some isold to sct conv to fire with the front near the coast and offshore late tomorrow.
159 PM EDT Thu Oct 26 2017 High pressure today into tonight.
Due to this, overnight lows will be warmer than we have seen previous mornings with readings in the lower 50s across the east and mid 50s in the west. As an upper low tracks east across the Great Lakes region, it will drag a cold front toward our region tomorrow.
The 12Z guidance continues to bring the cold front into our region late tonight around 09Z, and then pushes it out of the area around 18Z Friday. Good dynamics are expected behind the front as a rather strong trough begins to push east out of the Plains and toward our region.
Gusty winds of 25-30kts will prevail this afternoon ahead of strong cold front.
A weak system moving through Utah and the Four Corners region will bring breezy northerly winds to the region Friday, especially down the lower Colorado River Valley.
216 PM MDT Thu Oct 26 2017 Current low level water vapor loop shows the base of the upper level trough currently over southeast Wyoming and the northern Nebraska panhandle this afternoon as drier air just off the surface is pushing into Converse and Niobrara counties.
Should see a few inches of snow over the higher peaks today but little elsewhere.
1216 PM CDT Thu Oct 26 2017 The cold front is quickly moving through the area with KPVW already shifting to northerly winds. The passage of a cold front will bring gusty north winds to all the terminals this afternoon, continuing overnight. /issued 300 AM CDT Thu Oct 26 2017/ A strong cold front was currently making its way through the northern Plains early this morning. Before this cold front arrives late this afternoon/evening, we will see something of a pre-frontal trough move through late in the morning.
250 PM EDT Thu Oct 26 2017 High pressure will remain over the Carolinas through Friday night.
Near record heat this afternoon followed by windy and cooler At the surface this afternoon, a cold front was located near a Lubbock to Childress line, then on across northwest Oklahoma. Ahead of the front, West Central Texas was located in the warm sector with good southwest flow, combining with a low level thermal ridge. A cold front will move quickly south across West Central Texas this evening, and south of the I-10 corridor by 06Z. Freezing temperatures possible across West Central Texas.
1225 PM CDT Thu Oct 26 2017 A strong cold front that we are watching is currently through western South Dakota this morning and will be arriving in the Ozarks Region by this evening.
656 PM EDT Thu Oct 26 2017 High pressure into Friday.
Parts of the Missouri Breaks area will be somewhat warmer. Friday, a large upper ridge along the Pacific Coast will expand east into Montana and allow for somewhat warmer temperatures with dry conditions.
A much warmer night is anticipated tonight as a 30+ knot LLJ develops out ahead of an approaching strong cold front to our west, with lows only in the 40s to lower 50s.
620 PM EDT Thu Oct 26 2017 High pressure will prevail into Friday.