Aikyam-Lab/Synoptic-Bench huggingface dataset:
Discussion: A cold front will move across the area this morning with northerly winds through the afternoon. As high pressure continues to build in at the surface with upper and mid-level ridging, a mostly clear sky is expected. High pressure will continue to build across the region tonight with the pressure gradient beginning to lessen late tonight. Cooler temperatures are expected through this period, with highs generally near to below normal.
Across the northern half, a broad trough of low pressure was present over the northwestern quarter of the country. At the surface, high pressure was situated over southern Manitoba with an arctic cold front stalled out along the SD/Nebr. A second cold front was situated over northern Texas.
622 AM EST Tue Mar 7 2023 Clouds will persist across the area this morning and then give way to increasing sunshine as high pressure begins building into Great Lakes this afternoon. This high will build across the region offering a period of dry weather for the middle of the week. Mid level ridge to build over the Western Great Lakes and Upper MS Valley today. Temperatures will be closer to normal with highs ranging from the lower 40s north to the lower 50s south. Mid level ridge to build east into the area Wednesday. Near seasonable temperatures to continue with highs from the lower 40s north to the upper 40s south.
226 AM MST Tue Mar 7 2023 08z surface analysis had inverted trough from northeast WY into western NE. Patchy FZDZ west of snow over the higher Black Hills as well as patchy fog.
The first system enters the High Plains later today, bringing a chance for some drizzle through this afternoon.
A weak cold front is expected to move southward through the state today, so counties in the north may see highs "only" hit the mid 70s due to the timing of the frontal boundary later today. This, along with drier/cooler easterly flow near the surface should help moderate the daytime heating, keeping highs in the 60s to low 70s for most of Central AL. The highest rain chances will remain in the northwest as the system encounters the drier air mass across much of the area.
(Today through Wednesday afternoon) Upper levels have a weak ridge extending up from the Gulf. Back to the west a closed low with associated trough spins off the OR coast. This trough will swing inland Wednesday moving across OR and CA into NV as the Gulf ridge slides east.
416 AM EST Tue Mar 7 2023 Clouds will persist across the area this morning and then give way to increasing sunshine as high pressure begins building into Great Lakes this afternoon. This high will build across the region offering a period of dry weather for the middle of the week. Mid level ridge to build over the Western Great Lakes and Upper MS Valley today. Temperatures will be closer to normal with highs ranging from the lower 40s north to the lower 50s south. Mid level ridge to build east into the area Wednesday. Near seasonable temperatures to continue with highs from the lower 40s north to the upper 40s south.
(Today) Early morning temperatures range from the lower 50s north of the TN River to upper 50s/lower 60s south of the TN River. As the front shifts south of the area today, clear skies and slightly cooler temperatures will move into the area with highs only reaching the lower 70s today.
A large upper trough over the western US will temperatures colder than normal for the next few days.
736 AM EST Tue Mar 7 2023 Clouds will persist across the area this morning and then give way to increasing sunshine as high pressure begins building into Great Lakes this afternoon. This high will build across the region offering a period of dry weather for the middle of the week. Went close to the blend for temperatures today with high temperatures in the low 40s to low 50s. Mid level ridge to build east into the area Wednesday. Near seasonable temperatures to continue with highs from the lower 40s north to the upper 40s south.
455 AM MST Tue Mar 7 2023 Updated Aviation Discussion Cool and at times unsettled weather persists through the rest of the week as several weather disturbances move out of a deep low pressure system centered off the Pacific Northwest Coast. A deep upper level low remains centered off the WA/OR coast within a broader trough extending S and SW from NW Canada.
Expect nearly identical conditions from yesterday with highs in the upper 80's for most of us with plenty of sunshine as high pressure continues to dominate the area. A backdoor cold front will push across the Florida peninsula on Wednesday with a slight chance of showers mainly south of I-4 in region of best available moisture and instability.
541 AM CST Tue Mar 7 2023 (Today through Wednesday afternoon) Upper levels have a weak ridge extending up from the Gulf. Back to the west a closed low with associated trough spins off the OR coast. This trough will swing inland Wednesday moving across OR and CA into NV as the Gulf ridge slides east.
The start of green up in many areas has mitigated the high ground water levels to a point but of course any additional rain at this point is still not welcomed. This boundary is expected to sink slowly early this morning where it will take up residence along the AR/LA border through the remainder of the period with ridging sitting along the Gulf Coast. Much cooler air will arrive for Wednesday with highs in the 40s and 50s for most of the state with the exception of the south where 60s will prevail.
A backdoor cold front will push across the Florida peninsula on Wednesday with a slight chance of showers mainly south of I-4 in region of best available moisture and instability.
513 AM CST Tue Mar 7 2023 Key Messages: - Seasonable to Slightly Above Seasonable Temperatures Into Wednesday - Increased Precipitation Chances and Snowfall Accumulations for Latter Half of the Week - Precipitation Chances Possible Through the Weekend Today and Tonight: Seasonable temperatures expected today as an upper level ridge embedded with an upper level jet streak progresses over the forecast area.
532 AM CST Tue Mar 7 2023 (Today and tonight) Potentially tricky temperature forecast for today with the cold front lingering in the forecast area all day. After sunset tonight, temperatures will drop as the cold front dives southwest through the remainder of the forecast area. Temperatures at 850mb will remain slightly warmer with a cap developing late tonight across much of the area. The wind and tornado threats remain very low given the low level capping inversion. With the front finally through the area by Wednesday morning, low temperatures will be a bit cooler than the last few mornings.
1111 AM CST Tue Mar 7 2023 (Rest of Today) Tranquil weather across the Tennessee Valley this morning with high pressure nudging off to the east still in control of things across the Tennessee Valley. Highs today will peak in the low to mid 70s in most locations.
(Rest of today through Wednesday) High pressure continues to dominate across South Florida with another hot day with temps in the upper 80s and low 90s across South Florida. Overnight, temperatures will be in the low to mid 60s around the Lake region and interior wit upper 60s and low 70s elsewhere. Wednesday, A backdoor cold front will move through the region on from NE to SW. Temperatures will be a little cooler in NE portions of the area, where the front will move through first. High temps will range from the low to mid 80s NE portions to mid and upper 80s as you move south and west, with a few areas over SW interior reaching 90 once again ahead of the front.
This system will send a back door cold front through the Keys Wednesday night, although subtle differences in timing remain.
(Tonight through Wednesday night) - Well above normal temperatures continue with no significant chances for precipitation An upper level ridge will persist over South Texas through the short term forecast. A series of s/w troughs will pass well to our north maintaining a warm moist onshore flow.
As clouds continue to decay and high pressure dives further southeast, mostly clear skies are expected through the remainder of the afternoon and overnight tonight. Temperatures overnight are expected to be in the lower-30s to the low to mid-20s in the more sheltered valleys. Wednesday brings slightly cooler temperatures as northwesterly flow continues to remain in place and cooler temperatures continue to filter into the region. An amplified upper level pattern will be in place to begin the period, where ridging resides across much of the Eastern USA.
158 PM EST Tue Mar 7 2023 A dry cold front pushes southeast into the Carolinas this afternoon.
A H7 ridge will move east of the area through tonight. Today will be dry and cooler with a strong and expansive area of high pressure extending south across the area.
Main concerns through the tomorrow night will be increasing fire danger as a tongue of dry upper lvl name extends down on the leeward side of the Appalachians from a backdoor cold front. Not anticipating much recovery overnight as elevated winds will continue, with overnight dew points in the low to mid 20s by sunrise Wednesday, paving the way for another dangerous fire weather day. This low pressure will increase PoP chances across NW Georgia near the end of the short term period.
1257 PM EST Tue Mar 7 2023 Clouds will persist across the area this morning and then give way to increasing sunshine as high pressure begins building into Great Lakes this afternoon. This high will build across the region offering a period of dry weather for the middle of the week. Went close to the blend for temperatures today with high temperatures in the low 40s to low 50s. Mid level ridge to build east into the area Wednesday. Near seasonable temperatures to continue with highs from the lower 40s north to the upper 40s south.
231 PM EST Tue Mar 7 2023 Blustery conditions will persist into tonight behind a cold front.
1110 AM CST Tue Mar 7 2023 (Today through Wednesday afternoon) Upper levels have a weak ridge extending up from the Gulf. Back to the west a closed low with associated trough spins off the OR coast. This trough will swing inland Wednesday moving across OR and CA into NV as the Gulf ridge slides east.
1222 PM EST Tue Mar 7 2023 A dry cold front pushes southeast into the Carolinas this afternoon.
Some small changes are on the way tomorrow as a backdoor cold front pushes through the area. Inland areas will benefit from the strong east flow keeping temperatures cooler. This will be the opposite of coastal areas which will be warmer due to no west coast seabreeze setting up.
349 PM EST Tue Mar 7 2023 High pressure will allow for dry conditions tonight.
254 PM CST Tue Mar 7 2023 Tonight through Wednesday Night: With an upper-level ridge axis squarely overhead today, temperatures have remained warm despite a weak cold front dropping south into the area. Dew points have dropped only modestly (around 58 degrees through the Highway 82 corridor as of 2 PM) so far, but drier air has been gradually mixing into the boundary layer as is evident by the slowly thinning cumulus field across the region.
An east to west oriented cold front has moved south of the area, but went mostly unnoticed with dry air, and ridging aloft preventing any meaningful coverage of rain from developing. A broad mid-level ridge is building eastward and covering much of the eastern half of the CONUS promoting a broad corridor of stability from the Ohio Valley south into the Southeast. Surface winds will shift and become east-northeasterly tomorrow as high pressure builds over the East CONUS. This will foster a drier, cooler airmass with lows in the mid 40s northeast to mid 50s southeast.
(This afternoon through Wednesday Night) It's a cooler day out there today as temperatures across the mid- state are sitting around 60-65 degrees. Winds turned out of the north overnight so that's helping keep the temperatures cooler.
Tonight and Wednesday A ridge of high pressure will slide east tonight, allowing for mid and high clouds to advect into the region from the west. Therefore, lowered temperatures across much of the region given the fairly dry airmass in place, as evidenced by the low dew points. Mostly cloudy skies and dry weather will persist for much of Wednesday with high pressure to the east and a weak low pressure system upstream. Some sunshine is possible at times across east- central and northeast Wisconsin closer to the ridge of high pressure.
Lows will be cooler and in the upper 40s across the Basin and higher elevations with 50s across the Trans Pecos and down towards the Big Bend. With the front pushing to the southwest of the Permian Basin, areas from Lea County down towards the Lower Trans Pecos will see highs in the 50s and 60s Wednesday afternoon. Showers and isolated storms will still be possible and much like Tuesday night, rain amounts will stay on the lower side. Areas to the south and west of the Pecos River Valley stay warmer in the 70s to low 80s.
Warren/McKean counties will be about 10F cooler than normal.
(This evening through Wednesday Night) This short term forecast period will be defined primarily by the presence of the cold front along a pseudo-stationary boundary draped across the ArkLaTex, generally remaining just north of the I-20 corridor.
Discussion: Gentle ridging at surface and aloft will continue to be the theme overnight and into Wednesday. Wednesday looks to be another dry day, with temperatures cooler than today.
Meanwhile the southern valley is on pace for highs in the low to mid 70s. Discussion: A cold front will move across the area this morning with northerly winds through the afternoon. As high pressure continues to build in at the surface with upper and mid-level ridging, a mostly clear sky is expected. High pressure will continue to build across the region tonight with the pressure gradient beginning to lessen late tonight. Cooler temperatures are expected through this period, with highs generally near to below normal.
Mean-layer ridging has regained ground into the Southeast US, with strong descent noted across the eastern Gulf, South Florida, and the Keys. Surface observations place a small SFC anticyclone to the west of Florida, while a small cyclonic swirl is near the northern Bahamas. The forecast calls for nil rain chances and mostly sunny skies, although there should be some brief towering-ish cu in the lee of the Lower Keys this afternoon.
1050 AM MST Tue Mar 7 2023 Cool and at times unsettled weather persists through the rest of the week as several weather disturbances move out of a deep low pressure system centered off the Pacific Northwest Coast. - Fogleman A deep upper level low remains centered off the WA/OR coast within a broader trough extending S and SW from NW Canada.
Similarly, temperatures across the area are mainly in the low to mid 30s, and these will likely not budge too much under the thick cloud cover. Some of the far southeast zones may creep into the low 40s where the warmest 850-mb temperatures reside, but highs will be only a few degrees warmer than what they are as of 18Z for much of southwest KS.
* None There will be an amplification in the mid level troughing now over the Dakotas/Minnesota as it expands across the Great Lakes later today into Wednesday.
1203 PM CST Tue Mar 7 2023 (Today and tonight) Early this morning, a weak cold front is entering far northern portions of the Big Country. Low clouds will gradually scatter out by early afternoon, allowing temperatures to warm into the lower 80s south of the frontal boundary.
For the weekend, slightly warmer temperatures and slight chances for light rain showers are forecast.
As clouds continue to decay and high pressure dives further southeast, mostly clear skies are expected through the remainder of the afternoon and overnight tonight. Temperatures overnight are expected to be in the lower-30s to the low to mid-20s in the more sheltered valleys. Wednesday brings slightly cooler temperatures as northwesterly flow continues to remain in place and cooler temperatures continue to filter into the region.
1111 AM CST Tue Mar 7 2023 (Today and tonight) Potentially tricky temperature forecast for today with the cold front lingering in the forecast area all day. After sunset tonight, temperatures will drop as the cold front dives southwest through the remainder of the forecast area. Temperatures at 850mb will remain slightly warmer with a cap developing late tonight across much of the area. The wind and tornado threats remain very low given the low level capping inversion. With the front finally through the area by Wednesday morning, low temperatures will be a bit cooler than the last few mornings.
Energetic upper level flow over the northern conus/Canada with a ridge axis sliding over the Central Great Lakes tomorrow. Pronounced surface ridging extending from the 1050+ MB high over northern Manitoba will hold through the mid week period.
156 PM CST Tue Mar 7 2023 An upper-level ridge continues to build into the Great Lakes region this afternoon and is expected to reside over the region through Wednesday. As this ridge has moved in the moisture in the low-levels has continued to scour which has helped to clear out the earlier stratus deck.
The highest amounts would likely be over the northern Black Hills and the adjacent foothills, where local accumulations of around 2 inches are possible. 08z surface analysis had inverted trough from northeast WY into western NE. Patchy FZDZ west of snow over the higher Black Hills as well as patchy fog.
A large upper trough over the western US will keep temperatures colder than normal for the next few days.
1116 AM CST Tue Mar 7 2023 (Today through Wednesday) Texas will be on the western side of an upper level ridge during the short term part of this forecast period. High pressure over the Gulf will keep the low level flow from the southeast Tuesday and Wednesday.
909 AM CST Tue Mar 7 2023 The cold front cleared the mid-state earlier this morning, turning winds out of the north. Because of this, temperatures are a bit cooler today with a forecast high of 66 degrees. (Today through Wednesday) A cold front has made it to I-40 and will continue to work southward and clear the area by dawn. Temperatures will be cooler today with highs in the 60s and a 10-15 mph north wind.
This is resulting in cooler northeasterly flow with temperatures only in the upper 40s to mid 50s.
1118 AM CST Tue Mar 7 2023 The cold front cleared the mid-state earlier this morning, turning winds out of the north. Because of this, temperatures are a bit cooler today with a forecast high of 66 degrees. (Today through Wednesday) A cold front has made it to I-40 and will continue to work southward and clear the area by dawn. Temperatures will be cooler today with highs in the 60s and a 10-15 mph north wind.
Generally dry Wednesday Discussion: Tonight, dry conditions are anticipated into late evening at which time precip chances will increase in the far SW CWA as an inverted trough axis moves into central IA and NW MO. The precipitation should begin as all rain, but a rain snow mix is possible late tonight and into the morning commute as precip chances dwindle and temps bottom out in the low to mid 30s. Wednesday, slight rain chances linger across the western CWA as the trough washes out and shifts slightly westward. Dry conditions will prevail for the afternoon with highs getting into the low to mid 40s.
810 AM MST Tue Mar 7 2023 Cool and at times unsettled weather persists through the rest of the week as several weather disturbances move out of a deep low pressure system centered off the Pacific Northwest Coast. - Fogleman A deep upper level low remains centered off the WA/OR coast within a broader trough extending S and SW from NW Canada.
(Tonight through Wednesday night) A warm and humid airmass maintains through Wednesday night as modest upper level ridging remains oriented along the northern Gulf coast while light to moderate south-southeasterly winds continue at the surface and low-levels of the atmosphere. A cold front will advance south across portions of the San Angelo and Fort Worth CWAs tonight but is expected to stall out prior to reaching our northern CWA border.
GA and AL counties currently sit in the low 70s. Otherwise, a weak cold front will push southward into the region today, and this is expected to provide just enough low level convergence for isolated to scattered showers to develop this afternoon. For tonight, some slightly cooler and drier air will infiltrate into the northern portions of the forecast area behind the weak front with overnight lows ranging from the mid 50s to mid 60s across the region. By Wednesday, a backdoor cold front may usher in some critically low relative humidity across portions of south- central Georgia.
630 PM EST Tue Mar 7 2023 High pressure will allow for dry conditions tonight.
North to northeast flow feeding into the area from this high will remain 10 knots or less. Energetic upper level flow over the northern conus/Canada with a ridge axis sliding over the Central Great Lakes tomorrow. Pronounced surface ridging extending from the 1050+ MB high over northern Manitoba will hold through the mid week period.
Really no significant weather impacts are expected overnight with high pressure overhead, but don't be surprised to wake up to some morning low clouds as a backdoor cold front approaches the area. A NNW wind around 10 knots continues through the night, but as a backdoor cold front approaches tomorrow, winds are expected to shift to the NE in response.
602 PM CST Tue Mar 7 2023 (Tonight through Wednesday night) A warm and humid airmass maintains through Wednesday night as modest upper level ridging remains oriented along the northern Gulf coast while light to moderate south-southeasterly winds continue at the surface and low-levels of the atmosphere. A cold front will advance south across portions of the San Angelo and Fort Worth CWAs tonight but is expected to stall out prior to reaching our northern CWA border.
Remember, roads may be slick in any areas of drizzle or fog/freezing fog. Any freezing drizzle should be limited, with a few slick spots possible mainly along and east of highway 281.
615 PM EST Tue Mar 7 2023 (Rest of today through Wednesday) High pressure continues to dominate across South Florida with another hot day with temps in the upper 80s and low 90s across South Florida. Overnight, temperatures will be in the low to mid 60s around the Lake region and interior wit upper 60s and low 70s elsewhere. Wednesday, A backdoor cold front will move through the region on from NE to SW. Temperatures will be a little cooler in NE portions of the area, where the front will move through first. High temps will range from the low to mid 80s NE portions to mid and upper 80s as you move south and west, with a few areas over SW interior reaching 90 once again ahead of the front.
715 PM CST Tue Mar 7 2023 (Tonight) High pressure at the surface centered well to our north, will remain in place across the Tennessee Valley tonight.
Temps will remain well below normal the next couple days as a cold surface arctic high pressure doesn't budge much from central Canada.
439 PM MST Tue Mar 7 2023 Afternoon analysis shows a weak upper low over southern Saskatchewan with a trough extending southeastward across the central Dakotas. Cold high pressure has slid southward into western South Dakota where some locations in northwestern SD are seeing highs only in the single digits above zero this afternoon. A persistent SW-NE oriented band of light snow continues from southwestern SD and east of the Black Hills toward north central South Dakota as isentropic lift continues along the low level baroclinic zone.
Issued by National Weather Service Nashville TN 802 PM CST Tue Mar 7 2023 Cooler air has arrived behind a cold front. temperatures will trend warmer after midweek with periods of rain and possibly a few thunderstorms.
343 PM CST Tue Mar 7 2023 (Issued 343 PM CST Tue Mar 7 2023) Tonight through Wednesday night: High clouds will gradually spread east into the area tonight and linger Wednesday and Wednesday night, as a large area of high pressure in south central Canada lingers. Temperatures should remain near or a little above seasonal normals during this period, with onshore winds keeping lakeshore areas a little cooler than inland.