Aikyam-Lab/Synoptic-Bench huggingface dataset:
Further north, high pressure to the east should keep things dry with moisture return likely unable to overcome dewpoint depressions. The upper low should keep clouds around tonight across the south, with showers becoming more scattered in nature. As high pressure moves off to the east, the moisture plume will be allowed to surge northward, increasing rain chances late Wednesday afternoon and evening.
High temperatures in the low 80s remain expected for Wednesday in a broad southwesterly flow aloft ahead of an upper trough centered over the Pacific Northwest. A stalled upper low is seen over the northern Gulf, however this does not currently look to have much of an influence on the weather in our area.
At the surface, much of the eastern CONUS is within a broad area of high pressure, keeping winds light out of the ENE to E for much of our region, turning more to the SE on Wednesday into Wednesday night. This seems to be mainly driven by a stream of some weak PVA rotating around the upper low.
1219 PM CDT Tue Apr 11 2023 Upper-level high pressure will build eastward across the Quad State today, as an upper-level low pressure system settles over the northwest Gulf Coast. At the surface, high pressure will be centered to the south and southeast of the region through Wednesday.
Rain chances will remain on the low side today with only a 20-30 percent chance over SW Florida. This has also allowed some slightly cooler and drier air to filter into the area. Daytime highs through the week will top out around average in the upper 70's north to the low to mid 80's central and south. Overnight lows will remain in the low to mid 60's.
(Tonight through Wednesday night) Deterministic runs are consistent with respect to the upper pattern, with a quasi-stationary/meandering upper closed low (500 mb) over southern LA during the period, resulting in persistent subsidence over the CWA/adjacent waters. 6ft MSL during the high tide cycle this afternoon, just below the 1.
Otherwise, mild conditions expected areawide with afternoon high temperatures on Wednesday in the mid to upper 70s with overnight lows in the low to mid 50s.
A cold front has been slowly moving through the Northern Rockies today. The precipitation associated with the front has been been mainly falling as rain with snow being confined to the higher terrain.
1126 AM MDT Tue Apr 11 2023 Broad upper level ridge covers the western and central states. Highs will range from the lower 60s across NW SD to the 70s across south central SD, with temperatures in between depending on the timing/location of the front.
1157 AM CDT Tue Apr 11 2023 (Today and tonight) Besides the possibility of patchy fog this morning, today should An area of subsidence shifting overhead and ahead of a broad ridge will promote the development of patchy fog this morning as light surface winds decouple and dewpoint depressions approach zero. This jet maxima rounds the base of the trough this afternoon resulting in the closing of the trough while shifting towards the Louisiana coastline tonight. Today, mid-level heights rise (mainly over western counties) as the ridge leans over the western plains. Low-level southeasterly flow, which is associated with the high pressure system over the eastern CONUS, may advect enough moisture for a few low- to mid- level clouds over SE parts of the CWA.
337 PM EDT Tue Apr 11 2023 Discussion/Marine/FireWeather/Hydro --Dry, summerlike pattern; quite breezy Wednesday-- Thermal ridge aloft will be pushing in from the west tomorrow as west-southwest winds increase in tightening pressure gradient. Cloud cover will be limited due to subsidence under building upper ridge, and temps inland from Lk MI will make a run at 80 degrees. Wind gusts to 35 mph are likely in the afternoon as the low level jet comes across and deeper mixing takes place.
1235 PM CDT Tue Apr 11 2023 Dry and warmer weather is in store for the region through mid week. Across our area, an upper level ridge will build in creating a Rex Block which will keep precipitation well to our south. Byrd Even though well above normal temperatures are expected through the rest of the work week, the latest deterministic and ensemble model runs continue to indicate that the Rex Block will begin to break down perhaps as early as Wednesday night as an upper level trough begins to dig over the western CONUS. As this trough deepens, it will eventually lift out towards the northeast, kicking the cutoff low towards the Ohio Valley.
1105 AM EDT Tue Apr 11 2023 High pressure and a warming trend will remain in control of over the area through Wednesday.
(Today through Wednesday afternoon) This morning in the upper levels have a ridge extending up from Mexico across NM into CO with a trough over E TX that develops into a closed low today. Out west the next upper trough will start to come ashore today. On Wednesday the low to our east will remain along the SE TX/LA coast while the West Coast trough moves inland squeezing out the ridge. Temperatures will climb into the 80s nearly areawide today with very similar to slightly warmer conditions Wednesday.
/NEW/ /Through Wednesday/ Pleasant spring weather will prevail in the short-term as surface ridging continues across the eastern CONUS with an upper low shunted to our south along the Texas/Louisiana coast.
Cold front passed through Boise around 8 AM marked by a wind shift from southeast to northwest.
242 PM EDT Tue Apr 11 2023 (This afternoon through Wednesday) No major changes to the short term at this time with mostly clear skies and high temps this afternoon reaching into the low 70s areawide. Expect temperatures to continually increase under the high on Wednesday, high temperatures rising into the mid to upper 70s. Given no major synoptic change and today's 12z sounding, will need to monitor potential for fire danger conditions tomorrow afternoon for a broad area of north and central Georgia, with dry fuels RH values forecast to drop into the low to mid 20 percent across the majority of the area during the afternoon.
Some light showers are likely in areas south of HWY 84 this afternoon associated with a low pressure system to the south. North of I-20 should remain dry under the influence of a high pressure to the northeast. Mid- level ridge axis is situated over the Four Corners. Low-level ridge will remain over the TN Valley, keeping easterly flow & most of the areas under dry thermal profiles. /DC/ By Wednesday, a developing upper low will dive into the TX/LA/MS coastline, generating moisture into the lower levels across the Lower Mississippi/Southeast region.
Issued by National Weather Service Milwaukee/Sullivan WI 249 PM CDT Tue Apr 11 2023 Upper level ridging remains overhead continuing the dry and mild pattern. This is due to the tight pressure gradient between the high pressure to the southeast and developing low off of the Rockies.
Pleasant conditions are expected through Wednesday as high pressure remains in place.
402 PM EDT Tue Apr 11 2023 A weak trough will move southeast across southern Ontario tonight, otherwise high pressure will persist over the region through this week. High pressure will continue to influence the local area through the near term period and expect dry and warming weather through midweek. Upper level ridging amplifies Wednesday and expect temps to increase further; afternoon highs will climb into the mid to upper 70s and a few spots in NW OH may briefly touch 80 degrees. High pressure ridging aloft and at the surface will allow for fair and dry weather to persist through the short term forecast period.
1125 AM MDT Tue Apr 11 2023 Upper ridging in place over the CWA at this time. An upper level ridge will remain over the area today with dry conditions and well above normal temperatures. 850-700 mb temps would support highs in the lower to mid 80s across nern CO. Another record warm day expected on Wednesday as an increasing southwesterly flow aloft develops over the region ahead of an approaching trough over the Pacific Northwest. The record high temperature of 79 in Denver on the 12th, will be easily broken for Wednesday with the high around 84. There will be a chance of some weak showers in the high country by Wednesday afternoon.
(Tonight) Tranquil conditions continue tonight as the Tennessee Valley sits under high pressure.
111 PM CDT Tue Apr 11 2023 (Today and tonight) A pleasant day is in store for today as weak upper level ridging builds in across the forecast area. With the strengthening lee troughing will be an increase in the low level jet axis over West Texas tonight.
07/mb (Now through Wednesday) A closed upper low will meander around over the Louisiana Gulf coast into mid week. High temperatures in the low to mid 70s are expected today and Wednesday, a bit below seasonal norms.
(Through Wednesday) An upper low over western Louisiana will slowly drop southward over the Gulf of Mexico tonight and Wednesday. Jet rotating around the upper low will aid in cyclogenesis over the central Gulf on Wednesday, with broad low pressure developing south of the mouth of the Mississippi River. Temperatures are expected to be slightly warmer tomorrow, but somewhat tempered by increasing cloudiness from the south.
300 PM CDT Tue Apr 11 2023 After a warm day today, a slightly cooler day is expected for Wednesday with some breezy winds at times. Many of the warmer areas have more of a westerly component to the wind. Tonight, a surface cold front will push across the area. Wednesday, look for a post frontal kind of day with breezy winds and slightly cooler conditions. And with morning lows generally above freezing, impacts from melting snow look to only continue Wednesday and perhaps beyond.
254 PM MDT Tue Apr 11 2023 Temperatures are main weather feature today with an upper ridging over the forecast area. Models show the upper ridge pushing off to our east overnight into Wednesday morning. For the lower levels, models point to normal drainage wind patterns overnight.
An H5 cut-off low over southeastern Texas and southwestern Louisiana continues to provide a dry northerly to northwesterly mid-level flow.
Though a cutoff upper low has formed in the ArkLaTex region keeping the eastern half of the area in north to northeast flow aloft, the western half is seeing broad upper level ridging and subsidence. The 850 mb thermal ridge will strengthen across the area tomorrow and with plenty of insolation apart from a few high clouds, temperatures will be able to warm a bit above average.
326 PM EDT Tue Apr 11 2023 Quiet and dry weather continues as strong high pressure (~1030mb) sits off to our south and east. Low-level thickness values tomorrow suggest highs to be 2-3 degrees warmer vs today, which will result in afternoon highs climbing into the mid and upper 70s.
1204 PM CDT Tue Apr 11 2023 (Today and tonight) West Central Texas will be northerly flow aloft, as an upper low along Upper Texas/Louisiana coast. No shower or thunderstorms expected West Central Texas will be on subsident side of the upper trough.
131 PM EDT Tue Apr 11 2023 High pressure extending into the area will persist through most of the week. No precip today as high pressure persists at the surface and aloft. Have trended forecast warmer than NBM with highs in the lower and middle 70s. Have adjusted NBM temperatures a little warmer and surface dewpoints drier based on trends with this dry airmass. Red flag conditions are marginal with the area of lowest RH aligned with the lowest winds of around 10 mph or less and the highest winds around 15 mph over the northwest aligned with min RH values close to 30 percent. Mid level ridging to build into the area Wednesday which allow for a continued warming trend.
Today will be the last day we experience above normal temperatures for awhile as a high pressure ridge will give way to a digging trough across the Pacific NW. We're already feeling the impacts from the aforementioned trough as the tightening pressure gradient is causing winds to ramp up across much of the area. Similar to yesterday, seeing a wide range of temps across the CWA but most of us are in the 50s to lower 70s, with the highest values in the lower Snake and into the Magic Valley. As the trough continues to dig across the Pac NW, we'll see PoPs begin to slowly tick up across the central mountains and into the eastern highlands later this evening although chances aren't overly high.
An expansive area of high pressure across the Southeast has maintained fresh to strong breezes this afternoon. Temperatures along the island chain currently range from near 70 degrees in the rainy Upper Keys to near 80 degrees in the Lower and Middle Keys. This feature will gradually shift northeastward and continue to shove the high southeastward.
236 PM CDT Tue Apr 11 2023 18z surface data has high pressure over the Ohio Valley.
A strong midlevel ridge axis centered over New Mexico will continue to expand over SW KS through tonight, continuing to provide a clear sky. Lee troughing across eastern Colorado is modest today, only supporting an average Kansas windy day, averaging 20-30 mph this afternoon. Dewpoints will continue to hold in the lower 40s east of a diffuse dryline over the western zones, with most locations warming into the lower 80s through 4 pm.
1229 PM CDT Tue Apr 11 2023 An upper level low centered over Southwest Louisiana this morning will provide upper level support for convective development by late this morning into this afternoon.
1155 AM CDT Tue Apr 11 2023 (Today through Wednesday) Mid-level low pressure will develop over the Texas/Louisiana border and persist over that area during the period. Although a steady influx of drier air associated with the low will result in limited cloud cover, northerly to northeasterly surface winds will keep daytime high and overnight low temperatures at the slightly below normal range.
(This evening through Wednesday) Mid-level heights will increase subtly this evening and into Wednesday as a mid-level trough continue to moves off towards the Gulf Coast. Overnight lows won't get much higher than the low 50s, and highs Wednesday should stay in the mid to upper 70s, potentially low 80s. There is a low chance for elevated fire concerns across northwestern Oklahoma where winds will be a little bit higher (20-25 mph) and RHs will be in the low 20s.
West of the Divide, the deeper snowpack will help to keep temperatures a little cooler. With the temperatures and wind maximized today, as well as above freezing temperatures expected overnight, today and tonight will be the period to watch. The ridge will get further shunted east tonight as a Pacific trough approaches. Precipitation chances will increase on Wednesday as the trough pulls closer and lift aloft is enhanced, though models continue to slow the arrival of the associated cold front. Otherwise, Wednesday will be mostly dry and warm, though cooler than today across the north and west.
Issued by National Weather Service San Angelo TX 1203 PM CDT Tue Apr 11 2023 (Today through Wednesday afternoon) This morning in the upper levels have a ridge extending up from Mexico across NM into CO with a trough over E TX that develops into a closed low today. Out west the next upper trough will start to come ashore today. On Wednesday the low to our east will remain along the SE TX/LA coast while the West Coast trough moves inland squeezing out the ridge. Temperatures will climb into the 80s nearly areawide today with very similar to slightly warmer conditions Wednesday.
Quiet weather will continue through tonight with slightly warmer conditions in place for tomorrow afternoon.
1231 PM MDT Tue Apr 11 2023 The latest analysis shows a broad upper ridge over the central CONUS with an upper trough over the Pacific Northwest.
637 PM CDT Tue Apr 11 2023 Pleasant conditions are expected through Wednesday as high pressure remains in place.
A cold front remains on track to enter northwest North Dakota later tonight. After a warm day today, a slightly cooler day is expected for Wednesday with some breezy winds at times. Many of the warmer areas have more of a westerly component to the wind. Tonight, a surface cold front will push across the area. Wednesday, look for a post frontal kind of day with breezy winds and slightly cooler conditions. And with morning lows generally above freezing, impacts from melting snow look to only continue Wednesday and perhaps beyond.
(This afternoon through Wednesday) No major changes to the short term at this time with mostly clear skies and high temps this afternoon reaching into the low 70s areawide. Expect temperatures to continually increase under the high on Wednesday, high temperatures rising into the mid to upper 70s. Given no major synoptic change and today's 12z sounding, will need to monitor potential for fire danger conditions tomorrow afternoon for a broad area of north and central Georgia, with dry fuels RH values forecast to drop into the low to mid 20 percent across the majority of the area during the afternoon.
944 PM CDT Tue Apr 11 2023 Bands of showers and thunderstorms have been moving east to west across the forecast area this evening as an upper level low strengthens over southwest Louisiana.
600 PM CDT Tue Apr 11 2023 (Tonight through Wednesday night) Deterministic runs are consistent with respect to the upper pattern, with a quasi-stationary/meandering upper closed low (500 mb) over southern LA during the period, resulting in persistent subsidence over the CWA/adjacent waters. 6ft MSL during the high tide cycle this afternoon, just below the 1.
The cold front has moved through the CWA and cooler air is flowing into the region. A cold front will generate more scattered showers Wednesday afternoon with snow levels near 3000 ft.
718 PM EDT Tue Apr 11 2023 (Through Wednesday) An upper low over western Louisiana will slowly drop southward over the Gulf of Mexico tonight and Wednesday. Jet rotating around the upper low will aid in cyclogenesis over the central Gulf on Wednesday, with broad low pressure developing south of the mouth of the Mississippi River. Temperatures are expected to be slightly warmer tomorrow, but somewhat tempered by increasing cloudiness from the south.
816 PM CDT Tue Apr 11 2023 High pressure was sitting directly over Middle TN this evening.
620 PM CDT Tue Apr 11 2023 Upper level ridging remains overhead continuing the dry and mild pattern. This is due to the tight pressure gradient between the high pressure to the southeast and developing low off of the Rockies.
However, the Lower Keys remained relatively dry aloft, resulting in little rainfall. Winds were breezy throughout the island chain and Key West coastal waters due to a strong pressure gradient from the High to our north and the cold front in the waters of the Straits of Florida. Overnight temperatures will range from the low to mid 70s, with northeast to east winds near 20 to 25 knots, with gusts up to 34 knots, then becoming east and decreasing to near 20 knots. High pressure will continue to sink southward overnight, while the frontal boundary lies dormant in the distant Straits of Florida waters. The strong gradient between the high and cold front is causing strong to near gale force northeast to east breezes in the Key West coastal waters tonight.
Huston Today will be the last day we experience above normal temperatures for awhile as a high pressure ridge will give way to a digging trough across the Pacific NW. We're already feeling the impacts from the aforementioned trough as the tightening pressure gradient is causing winds to ramp up across much of the area. Similar to yesterday, seeing a wide range of temps across the CWA but most of us are in the 50s to lower 70s, with the highest values in the lower Snake and into the Magic Valley. As the trough continues to dig across the Pac NW, we'll see PoPs begin to slowly tick up across the central mountains and into the eastern highlands later this evening although chances aren't overly high.
331 PM MDT Tue Apr 11 2023 Near record high temperatures today for the region just ahead of a cold front from the NW. *** See Hydrology discussion below ** Very strong pressure gradient between the warm high pressure over the central plains and the colder low pressure over the coast of British Columbia. Good model agreement showing increasing chances for rain showers mixing with snow showers later this week behind the cold front. After some fairly disorganized light rain showers are expected now through Wednesday afternoon for our western and southwestern zones, the main energy of the low pressure trough moves inland and strengthens over Idaho and sets up some more organized showers moving through our CWA.
707 PM EDT Tue Apr 11 2023 Upper ridging will maintain dry conditions during the upcoming forecast.
427 PM MDT Tue Apr 11 2023 The latest analysis shows a broad upper ridge over the central CONUS with an upper trough over the Pacific Northwest.
30/Sirmon Pleasant conditions are expected through Wednesday as high pressure remains in place.
18z surface data has high pressure over the Ohio Valley.
Issued by National Weather Service Pueblo CO 305 PM MDT Tue Apr 11 2023 Upper level ridging continues to build across the Rockies and into the Central High Plains with increasing southwest flow aloft expected through the day Wednesday, ahead of a weather system moving across the Pacific Northwest Coast.
Early evening IR satellite imagery is showing increasing cloudiness over the central and eastern Gulf of Mexico associated with the developing trough that has been bring breezy conditions to the area. Apart from the lowered rain chances tonight and adding the Charlotte Harbor into the Small Craft Advisory, no other changes are planned for the evening update. A tight pressure gradient between high pressure north of Florida and a developing area of low pressure over the northern Gulf have kept breezy east winds in place today over the coastal waters.
After a warm day today, a slightly cooler day is expected for Wednesday with some breezy winds at times. Many of the warmer areas have more of a westerly component to the wind. Tonight, a surface cold front will push across the area. Wednesday, look for a post frontal kind of day with breezy winds and slightly cooler conditions. And with morning lows generally above freezing, impacts from melting snow look to only continue Wednesday and perhaps beyond.
Extensive cloudiness will help keep temperatures in the mid to upper 50s overnight, and in the lower 60s at the coast. (Through Wednesday) An upper low over western Louisiana will slowly drop southward over the Gulf of Mexico tonight and Wednesday. Jet rotating around the upper low will aid in cyclogenesis over the central Gulf on Wednesday, with broad low pressure developing south of the mouth of the Mississippi River. Temperatures are expected to be slightly warmer tomorrow, but somewhat tempered by increasing cloudiness from the south.
611 PM MDT Tue Apr 11 2023 Temperatures are main weather feature today with an upper ridging over the forecast area. Models show the upper ridge pushing off to our east overnight into Wednesday morning. For the lower levels, models point to normal drainage wind patterns overnight.
Quiet and dry weather continues as strong high pressure (~1030mb) sits off to our south and east. Low-level thickness values tomorrow suggest highs to be 2-3 degrees warmer vs today, which will result in afternoon highs climbing into the mid and upper 70s.
618 PM CDT Tue Apr 11 2023 (This evening through Wednesday) Mid-level heights will increase subtly this evening and into Wednesday as a mid-level trough continue to moves off towards the Gulf Coast. Overnight lows won't get much higher than the low 50s, and highs Wednesday should stay in the mid to upper 70s, potentially low 80s. There is a low chance for elevated fire concerns across northwestern Oklahoma where winds will be a little bit higher (20-25 mph) and RHs will be in the low 20s.
(Rest of tonight) High pressure remains over the area tonight.
616 PM CDT Tue Apr 11 2023 (Tonight) Tranquil conditions continue tonight as the Tennessee Valley sits under high pressure.