Aikyam-Lab/Synoptic-Bench huggingface dataset:
High pressure will dominate our weather causing daytime highs to be well above normal for the rest of the work week. A high pressure pattern will stake its claim over NorCal and will allow an anomalously warm airmass to linger over our region through the rest of the work week.
Strong high pressure will remain parked off the Pacific coast through the week, keeping a dry and generally stable northwest flow over Utah and southwest Wyoming. High pressure remains centered off the Pacific coast this afternoon, keeping Utah and southwest Wyoming under a dry and stable northwest flow aloft. Temperatures are on the mild side for many locations, with maxes running up to 10F above seasonal normals over southern Utah as well as over the higher terrain. A rather weak wave is on track to ripple over the front side of the ridge and across the area during the day Wednesday. The cooler temperatures aloft will weaken inversions somewhat but it seems associated improvement in air quality will be limited at best.
We keep some wind tonight as the axis of the upper trof pushes off to the east and some mid/upper level moisture starts to flow over the region from the northwest. Quiet and a bit cooler for Wednesday but progressive upper pattern will have our next system sliding down from the north by Wednesday night. In response, median values from ensemble guidance QPF plumes are generating some low/non-zero precipitation amounts across a good portion of central and western Nebraska, spreading down from the Pine Ridge late in the day on Wednesday, then south across central and western Nebraska overnight.
637 PM EST Tue Feb 8 2022 High pressure begins to shift eastward but keeps conditions dry through Wednesday night.
Otherwise, high pressure remains anchored off the Pacific coast. A few periods of gusty wind may be possible over the highest terrain, with very minimal impact currently expected.
18z data has a weak low east of KMSP with a warm front running through southwest Wisconsin and northern Illinois. A cold front ran from the low southwest into the Oklahoma panhandle. The next clipper system passes well north of the area but the attendant cold front will sweep through this afternoon/evening with only an increase in clouds.
/issued 342 PM CST Tue Feb 8 2022/ High pressure and ridging will dominate the upper level pattern tonight through the next few days. Lows tonight are forecast to be in the low 30s to mid 30s across the area. Westerly surface winds will help to start reintroducing some warmer air slowly into the environment. Overall, conditions will be a bit warmer, but still cold on Wednesday.
439 PM EST Tue Feb 8 2022 Dry, tranquil conditions with decreasing clouds will occur late today through Wednesday morning as a ridge of high pressure builds over the state.
A 995mb occluded low pressure system across southwestern Ontario has resulted in a tight pressure gradient across the region, and thus breezy to windy conditions this afternoon. Temperatures will be cooler Wednesday, due to continued weak CAA and cloud cover, though highs will still be near to around 10 degrees above average (in the upper 20s to mid 40s). The grassland fire danger will be lower due to the higher relative humidities, but still high considering northwest wind gusts of around 30 knots during the afternoon. North to northwest flow will continue aloft, with a nearly steady- state broad 500mb trough residing over eastern Canada through the eastern two thirds of the U.
Rest of Today & Tonight: The upper level trough that brought a front to our region today will continue to track east towards the Great Lakes. With continued sustained winds of 5 to 10 mph overnight temperatures should remain mild by February standards (lows near freezing).
An upper ridge will be over the region into the weekend.
Southwesterly winds will proceed under the northern periphery of high pressure until a weak frontal boundary makes its way through half of our airspace by 09/18Z. Could see some temps around the freezing mark in areas north of the Interstate 30 corridor, especially across portions of Southeast Oklahoma and adjacent Southwest Arkansas.
High pressure will dominate the weather across the CWA through the remainder of the week.
Temperatures have warmed into the upper 50's and lower 60's today for most locations, with even warmer temps in the middle 60's expected Wednesday. We have another cold night on tap tonight with lows in the lower 30's for most locations.
A warming trend will continue across the region as high pressure aloft builds in and a persistent offshore flow continues through the weekend.
Lows tonight will manage to dip below freezing tonight over mainly southeast portions of the area, and then temperatures will rebound quickly Wednesday morning. /EC/ Wednesday night through Tuesday: The period starts off with northern stream troughing extending from the Northern Plains into the Ohio Valley. The Lower Mississippi Valley region will be situated beneath zonal flow in the base of the trough.
436 PM MST Tue Feb 8 2022 Sunny skies have prevailed across much of eastern Utah and western Colorado today as dry northwesterly flow dominates overhead in response to the continued building of the west coast ridge. This system will quickly exit to the east late this afternoon as the high's center continues to wobble off the coast of northern California.
837 PM EST Tue Feb 8 2022 High pressure will build overhead tonight, then shift offshore Wednesday.
605 PM EST Tue Feb 8 2022 Dry, tranquil conditions with decreasing clouds will occur late today through Wednesday morning as a ridge of high pressure builds over the state.
(The rest of tonight) The cold front is making steady progress southward across the forecast area, having cleared most of northeast Oklahoma mid evening.
753 PM EST Tue Feb 8 2022 Chilly and rainy conditions expected to continue across the area over next few hours before slowly clearing off through Wednesday morning, as cold front moves south. This is as high pressure builds keeping clear skies, dry air, and gradually warmer temperatures. The coolest nights will be Tuesday and Wednesday night with lows in the upper 30's to mid 40's possible, however no freezing temperatures or frost is expected. The rainfall will be slow to exit the area, but should begin to clear out by late morning on Wednesday as high pressure builds into the southeast U.
If the snow does start falling Wednesday morning, accumulations are anticipated to range from a dusting to a half of inch in the valleys and up to an inch in the higher terrain.
Basically, warmer air from the west will be over-running the colder air in the east. Recent warming has allowed surface temperatures to climb back up above freezing.
High pressure, centered off the California/Oregon coast, continues to be the dominant synoptic feature calling the shots on the benign weather pattern we are experiencing across the southwest.
729 PM EST Tue Feb 8 2022 High pressure allows for dry weather tonight. A moisture starved cold front arrives Wednesday.
Strong upper level ridging is begining to build into NorCal today with weak short waves passing to our east. That is bringing breezy north and east winds mainly over the northern Sacramento Valley and over the higher elevations.
522 PM CST Tue Feb 8 2022 A dry cold front will move across the terminals tonight with a slight wind shift to the west/northwest to mark its passage.
High pressure centered over the western Gulf of Mexico into the Appalachian mountains hold tight tonight from the western Gulf of Mexico into the Appalachian mountains. This area of high pressure will slowly weaken on Wednesday.
342 PM CST Tue Feb 8 2022 High pressure and ridging will dominate the upper level pattern tonight through the next few days. Lows tonight are forecast to be in the low 30s to mid 30s across the area. Westerly surface winds will help to start reintroducing some warmer air slowly into the environment. Overall, conditions will be a bit warmer, but still cold on Wednesday.
900 PM EST Tue Feb 8 2022 High pressure allows for dry weather tonight. A moisture starved cold front arrives Wednesday.
227 PM MST Tue Feb 8 2022 Gusty winds across the lower elevations will decrease some this afternoon, as weaker winds aloft replace the stronger ones. Northwest flow aloft takes over for tonight and Wednesday, with ridge location further west. Meanwhile lee troughing will redevelop, bringing a tightening surface gradient along the foothills.
As the weak upper level trough from last night moves another weak upper level trough will follow on the heals tonight and into tomorrow.
Consensus guidance supports high temperatures in the lower-mid 60s Today, slightly below normal, with lows Tonight in the 35-40 range.
Southwesterly winds will proceed under the northern periphery of high pressure until a weak frontal boundary makes its way through half of our airspace by 09/18Z.
Dry conditions will persist through much of the period as a northwest flow aloft prevails across the Western High Plains while a west- northwest downslope flow in the lower levels reinforces a much drier air mass throughout the high plains of western Kansas. Expect afternoon highs up into the 50s(F) in west central Kansas to the lower/mid 60s(F) in south central Kansas.
With minimal cloud cover today, high temperatures will recover into the low to mid 60s areawide; however, expect low temperatures to drop into the upper 30s tonight as clear skies and calm winds lead to another radiational cooling night. Locally cooler temperatures in the mid 30s could be possible if efficient radiational cooling develops.
A strong ridge remains over northern CA with a moderate northwest flow aloft.
The water vapor loop this evening is showing a dry slot associated with a trough of low pressure moving from north to south across northern Arizona. High pressure, centered off the California/Oregon coast, continues to be the dominant synoptic feature calling the shots on the benign weather pattern we are experiencing across the southwest.
We'll probably see temps drop a bit cooler than models predicted due to dew points down in the 26-27 degree range across most of the area. This area of high pressure will slowly weaken on Wednesday.
This is where we have increase probabilities to the low-chance range, since shallow convective profiles deepen into the dendritic zone and enough low-level shear is present for quasi-banded organization, potentially.
Above-normal temperatures are the highlight of the forecast this week as most locations warm into the 60's and 70's. This trend is expected to continue through the weekend as an upper-level ridge sits over the West Coast.
356 AM EST Wed Feb 9 2022 Largely quiet short term period with Georgia positioned at the base of the longwave trough. With temperatures in the upper 20s and low 30s, patchy dense freezing fog is possible and could impact the morning commute.
1057 PM MST Tue Feb 8 2022 Sunny skies have prevailed across much of eastern Utah and western Colorado today as dry northwesterly flow dominates overhead in response to the continued building of the west coast ridge. This system will quickly exit to the east late this afternoon as the high's center continues to wobble off the coast of northern California.
Near the surface, a small area of high pressure is sinking slowly south across northeast New Mexico.
159 AM EST Wed Feb 9 2022 High pressure will dominate the weather across the region through the remainder of the week.
1045 PM CST Tue Feb 8 2022 (The rest of tonight) The cold front is making steady progress southward across the forecast area, having cleared most of northeast Oklahoma mid evening.
/Issued 1221 AM CST Wed Feb 9 2022/ /Today and Tonight/ A weak cold front has moved into northwestern portions of North Texas, making its way to the southeast through the early morning hours. The calm conditions will translate well into the night as high pressure noses into our region. Temperatures will drop into the 30s, but most locations are expected to remain above freezing.
107 AM EST Wed Feb 9 2022 High pressure builds in tonight through Wednesday.
Rest of Today & Tonight: The upper level trough that brought a front to our region today will continue to track east towards the Great Lakes. With continued sustained winds of 5 to 10 mph overnight temperatures should remain mild by February standards (lows near freezing). Any activity may begin as rain late in the afternoon, but with WBZ temperatures below freezing, it could transition to light snow as the evening progresses.
A weak cold front will cross the area this evening.
Ridging remains more or less dominant overnight across the Gulf Coast. Lows tonight will manage to dip below freezing tonight over mainly southeast portions of the area, and then temperatures will rebound quickly Wednesday morning. /EC/ Wednesday night through Tuesday: The period starts off with northern stream troughing extending from the Northern Plains into the Ohio Valley. The Lower Mississippi Valley region will be situated beneath zonal flow in the base of the trough.
A weak cold front will slide across the are abut have little effect. Lows tonight will still be mainly a radiational cooling situation, with the usual cold air drainage areas seeing the lowest temperatures.
210 AM EST Wed Feb 9 2022 Present surface analysis has the region in the warm sector as represented by the warmer surface temperatures. These warmer temperatures will continue through the day today and only reinforced by the strong 850 low-level jet advecting warmer temps and higher RH values ahead of a cold front. Previous model runs were suggesting a stronger and more saturated cold front; however, CAMs and near-term models have backed off on PoP.
325 AM EST Wed Feb 9 2022 A weak cold front will push through today, followed by a disturbance tonight, providing a chance for light precipitation.
/issued 950 PM CST Tue Feb 8 2022/ Southwesterly winds ahead of an approaching cold front have kept temperatures warmer this evening.
Where skies have been clear, temps mostly dipped into the low 20s and teens, whereas cloudy areas stayed in the upper 20s to near 30F. Low pressure northwest of Thunder Bay and its cold front over Minnesota has been responsible for some snow showers spreading eastward into the forecast area. As we progress through the remainder of the morning, the cold front is expected to move into the western forecast area and this area of snow is expected to continue into the western counties, creating more steady light snow showers before transitioning to LES.
951 PM MST Tue Feb 8 2022 Highs will peak a few degrees cooler today behind a cold front that pushed through this morning. Most locations will still be well above normal for this time of year as the ridging continues across the western US.
Since temperatures in the low to mid 30s will be expected throughout much of the area tonight, frost will be possible.
A few light showers developed across the Lower Columbia Basin and the northern Blue Mountains this evening but trace amounts were observed. Some mid and high level clouds riding over-top the ridge of high pressure allows for SCT-BKN 5-10K ceilings mainly focused in the first half of the period. The precipitation has encountered subsidence with the stable high pressure and has mostly ended. Some mid and high level clouds riding over-top the ridge of high pressure allows for SCT-BKN 5-10K ceilings mainly focused in the first half of the period.
1239 AM EST Wed Feb 9 2022 Low pressure will exit across the Maritimes today.
Temps will be above freezing on Wed but temps will cool with any stronger snow showers with some impact possible on roadways. Clouds increase with the trough tonight, with a period of light precip possible from late tonight through much of the day on Wednesday. Overall, think that light snow showers will be the predominate precip type, but some light rain or freezing rain/drizzle (depending on surface temperature) may mix in at times. In any case, actual QPF will be very light, so outside of a few slick spots during the morning when temperatures will be below freezing, impacts should be minimal.
Overnight lows will be in the low to mid 40s along and north of I-4, and upper 40s to low 50s everywhere else, except upper 50s to low 60s across the Treasure Coast.
A few light showers developed across the Lower Columbia Basin and the northern Blue Mountains this evening but trace amounts were observed. The precipitation has encountered subsidence with the stable high pressure and has mostly ended. Some mid and high level clouds riding over-top the ridge of high pressure allows for SCT-BKN 5-10K ceilings mainly focused in the first half of the period.
At the surface, broad high pressure is developing across the central Gulf of Mexico today, favoring light north winds across the forecast area.
Some mid to high clouds are possible in northern sections late today and this evening as the trough axis swings through, otherwise we will have clear skies this period. Light winds may persist tonight, which should keep low temps above what we have seen the last few nights - expect lows in the lower to mid 30s.
Winds over the Lower have increased to 15 knots and gusts up to 22 knots. The KKEY sounding shows the low levels of the atmosphere have moistened somewhat, but the lack of significant lift is why the land areas of the Keys have remained dry tonight. A cold front moved into our western waters early today and caused unsettled weather conditions.
Temperatures across the region are in the upper 30s and lower 40s as light S-SW winds are helping to keep temperatures warmer compared to previous nights. A weak surface cold front will pass through the region during the afternoon and evening hours, but not before temperatures reach well-above normal levels as low- level SW flow will aid in warm advection out ahead of the front. High temperatures will be a few degrees warmer than yesterday: near 50 in southern Indiana, low-to-mid 50s in the Bluegrass, mid-50s across the Louisville metro, and upper 50s along and south of the Cumberland Parkway. As cooler air rushes in tomorrow night, a few snowflakes could mix in across southern Indiana and the Bluegrass.
950 PM CST Tue Feb 8 2022 Southwesterly winds ahead of an approaching cold front have kept temperatures warmer this evening.
Low level winds will increase further today as an upper trough swings through the Midwest, with some scattered cloud cover expected as well.
A few light showers developed across the Lower Columbia Basin and the northern Blue Mountains this evening but trace amounts were observed. The precipitation has encountered subsidence with the stable high pressure and has mostly ended.
Couple the warm temperatures with dewpoints falling into the low to mid 20s and WNW wind gusting to 20 to 25 knots and that will lead to an elevated fire weather danger.
333 AM MST Wed Feb 9 2022 Strong upper ridging is persisting across the NW CONUS, while a trough is centered across the Great Lakes region. Have issued a Winter Weather Advisory for the higher elevations across Lawrence and Pennington Counties. Weak ridging aloft will attempt to edge into the CWA on Thursday, bringing warmer temps and gusty NW winds.
At the surface, a 993mb low was analyzed over Ontario, Canada with a cold front extending through the U.
303 AM MST Wed Feb 9 2022 Strong high pressure aloft situated along the West Coast will result in mostly clear skies and well above normal temperatures at least through the weekend.
The upper level ridge will remain situated off of the West Coast to end the work week as the broad upper level low continues to extend from Hudson Bay and dominate the central and eastern CONUS.
Strong high pressure aloft situated along the West Coast will result in mostly clear skies and well above normal temperatures at least through the weekend.
The cold front is slowly moving through the DFW Metroplex, switching area winds from southwesterly to northwesterly. Hernandez Previous Discussion: /Today and Tonight/ A weak cold front has moved into northwestern portions of North Texas, making its way to the southeast through the early morning hours. The calm conditions will translate well into the night as high pressure noses into our region. Temperatures will drop into the 30s, but most locations are expected to remain above freezing.
/Issued 356 AM EST Wed Feb 9 2022/ Largely quiet short term period with Georgia positioned at the base of the longwave trough. With temperatures in the upper 20s and low 30s, patchy dense freezing fog is possible and could impact the morning commute. Otherwise, weak disturbance swinging through the upper level trough will increase cloud cover over north Georgia Thursday but have little to no other impacts.
Yesterday's weak cold front drove slightly cooler air across the area last night and this morning's temperatures will start out a bit cool. A weak upper trough will pass tonight and early Thursday, and a very weak front also looks to move southward again later today. Winds will switch to northerly later today as a weak cold front moves southward into the area. RMcQueen Upper ridge continues along the west coast of the US resulting in mostly dry northwesterly flow down the east side of the Rockies into our local region.
A high pressure system will dominate the Northeast Pacific into the weekend. A system of high pressure continues its march north and slightly east.
It will be quite a bit cooler with lows in the single digits and teens. Amounts will be held down by the limited duration at any point, but up to 1 to 4 inches are possible, especially near and east of the MS River, with the highest chances for locally 3-4 inches across north-central WI. Following the initial precip band, lift weakens, deep layer saturation wanes, and low level temp profiles warm near/above freezing, so it may become more of a drizzle/freezing drizzle environment for any additional light precip, depending on air/surface temps.
Other than a few high clouds spilling into NorCal over the eastern Pacific ridge, skies remain clear early this morning.
504 AM EST Wed Feb 9 2022 Upper-level composite analysis depicts a flattening longwave trough over the Florida Peninsula, with a plume of low-level moisture streaming northeastward from the Yucatan Peninsula. Perhaps most impressive were several strong, isolated thunderstorms over the southwestern Straits of Florida, with decent amounts of cloud to surface lightning strikes and at least signs of an elevated mesocyclone.
High pressure will bring dry conditions with a warming trend the rest of the week.
245 AM PST Wed Feb 9 2022 Dry and mild conditions will continue through this weekend as high pressure remains over the region. The rest of this week: * The anomalous long-ridge just off the West Coast will strengthen and build over the region into this weekend. Today, elevations above 7,000 feet will see gusts 45-60 mph, before ridge winds increase tonight to as high as 80 mph.
Central Alabama remains within the base of broad troughing encompassing much of the CONUS east of the Rockies, downstream of an omega-like block over the Eastern Pacific and West Coast. A weak cold front will stall out north of the area Thursday, and with continued westerly flow went on the warm side of guidance for highs similar to today.
Overnight lows tonight will range from the lower and mid 20s west up to the upper 20s to around 30F in the east. Wednesday night, a range of the mid 20s west to the lower 30s east. Upper ridge will gradually rebuild over the weekend with no precipitation expected.
High pressure will continue to produce VFR at the aerodromes through the next 24 hours.
A broad upper trough remains over the eastern half of the US, with dry northwest flow across west Texas. After a cold start to the morning, we should see temperatures warm back into the mid 60s, despite the high clouds. Overnight lows tonight will hover right around freezing.