Aikyam-Lab/Synoptic-Bench huggingface dataset:
623 AM CDT FRI MAY 20 2016 Upper low evident on 08z/3am water vapor imagery over southwest Missouri will track northeastward today, bringing clouds and a few light showers to central Illinois. Despite decent lift associated with the low, low-level airmass will remain quite dry. Another change noted on the 00z May 20 model suite is that the upper low will be slightly slower to depart than originally thought. Despite rising upper heights and a return to mostly sunny skies, northerly winds around the high will mitigate warming trend. with highs on Saturday reaching the lower to middle 70s.
/Issued 406 AM CDT FRI MAY 20 2016/ An upper ridge will build over the Panhandles today and tonight with the upper flow transitioning to southwesterly on Saturday as the upper ridge moves off to the east and an approaching closed upper low over the Great Basin region moves slowly east.
VFR conditions will persist through the forecast period under high pressure. Low pressure passing well south of the state is the cause of some mid-high level clouds over the southern half of the forecast area. Will see diurnal cumulus develop as well late this morning and afternoon, especially north of the edge of the higher clouds, that will dissipate late this afternoon into the early evening. Light east to southeast winds during the day will turn northeast this evening, and then north overnight, behind the low passing to the south.
THE CENTER OF THE LOW IS CURRENTLY ABOVE NORCAL. THIS COUNTER-CLOCKWISE MOVEMENT OF SHOWERS IS EVIDENCE OF THE LOW MOVING CYCLONICALLY ABOVE US. INSTABILITY WITH THIS LOW WILL KEEP A THREAT OF THUNDERSTORMS ACROSS OUR REGION THIS AFTERNOON INTO EVENING. COOLER AIR ASSOCIATED WITH THIS LOW HAS SIGNIFICANTLY TRENDED TEMPERATURES DOWNWARD. CURRENT TEMPERATURES ARE RUNNING 5-10 DEGREES COOLER THAN 24 HOURS AGO. WATER VAPOR SATELLITE IMAGE SHOWS UPPER LOW CENTER SOMEWHERE OVER FAR NORTHWEST CALIFORNIA AT THIS TIME. AS THE UPPER LOW CENTER CONTINUES SOUTHWARD. COLD AIR ASSOCIATED WITH THE LOW WILL BRING DOWN DAYTIME HIGHS SIGNIFICANTLY TODAY.
/issued 413 AM CDT FRI MAY 20 2016/ Showers continue to shift northeastward, with the mid to upper trough this morning, across northeast OK. The low stratus/br should mix out fairly quickly from west to east after sunrise. Late tonight through Saturday morning, WAA on the eastern edge of the ridge axis may again support showers and elevated storms across central and northern OK.
1231 PM EDT FRI MAY 20 2016 Low pressure approaches evening and moves through tonight. A Low pressure system intensify as the first vorticity lobe crosses the area by this evening.
Cooler temps with the expansive cloud cover. Upper low evident on 08z/3am water vapor imagery over southwest Missouri will track northeastward today, bringing clouds and a few light showers to central Illinois. Despite decent lift associated with the low, low-level airmass will remain quite dry. Another change noted on the 00z May 20 model suite is that the upper low will be slightly slower to depart than originally thought. Despite rising upper heights and a return to mostly sunny skies, northerly winds around the high will mitigate warming trend. with highs on Saturday reaching the lower to middle 70s.
These are forming at the intersection of the cold front and the right entrance region of 70 to 80 kt jet around 300mb. Water Vapor imagery over the past few hours is showing drier air streaming in behind the MCS to our south ahead of the cold front. However, the low mentioned above over central MS is pulling some of the residual stratus behind the MCS to the north. As the cold front slowly shifts east, it will encounter these areas that have begun to destabilize and should see some regeneration of storms along the front. Cold front should arrive at MSL/00Z and HSV/03Z, with winds veering to nw.
1033 AM EDT FRI MAY 20 2016 High pressure building from the Ohio valley to the Mid Atlantic coast today will move out to sea tonight. Then low pressure tracking up the Eastern seaboard will pass south of the area on Saturday.
Tupelo and the surrounding counties have already reached the lower 70s this morning due to the advancing warm front. The warm front will soon begin to retreat back southward as a cold front but not before some areas in North Mississippi reach 80 degrees. Yet this morning we may be dealing with the lingering showers and thunderstorms as an upper level trough moves into the area. Once the storms get out of the region, a high pressure system will move into place over the area and things should dry out.
519 AM MDT FRI MAY 20 2016 A RIDGE WILL EXIST OVER THE HIGH PLAINS TODAY AND SATURDAY. THE RIDGE WILL SHIFT EAST SATURDAY AFTERNOON ALLOWING SOUTHWEST FLOW ACROSS THE HIGH PLAINS.
isentropic lift over our cooler post frontal airmass has led to widespread thick clouds across the southern 3/4 of the area. This boundary and accompaning showers/isolated storms will drift northward today as high pressure shifts east. Expect good coverage of stratus tonight as onshore flow increases in response to next trough developing over the Western Rockies. Expect warmer temps on Sat due to slightly less cloud cover.
1126 AM EDT FRI MAY 20 2016 High pressure will bring sunny, dry weather to NY and PA today, before a storm slides into the northeast and spreads rain showers across our region for the weekend. High pressure-induced sunny skies will combine with 13C-15C 925 MB temperatures to produce a mild afternoon. Temperatures will top out in the lower to middle 70s across most of our region.
Expect dry, windy and progressively cooler conditions today and over the weekend. A large and unseasonably deep low pressure system can be seen this morning entering the northwestern Great Basin.
Yet this morning we may be dealing with the lingering showers and thunderstorms as an upper level trough moves into the area. Once the storms get out of the region, a high pressure system will move into place over the area and things should dry out.
Small chances of precipitation will be held onto until the aforementioned energy and associated upper trough clears the area completely. weak high pressure will build into the area with dry conditions expected tonight through the remainder of the short term period.
Chattanooga Airport, TN 71 62 77 56 / 100 70 20 0 Knoxville McGhee Tyson Airport, TN 71 60 74 55 / 100 80 30 20 Oak Ridge, TN 70 61 74 56 / 100 70 30 20 Tri Cities Airport, TN 69 57 70 52 / 80 90 60 40.
Temperatures will be around 10 to 15 degrees warmer today depending on location. The warmest highs could be reached in the low 80s near Elkhart, while around 70 may be more probable under the upslope surface wind modified stratus clouds which will again persist the entire day from Dodge City to Hays. The main wave of precipitation exited the area last evening, and with upper ridging developing, precipitation should not be expected today. Light southeast winds will continue as high pressure remains anchored over the Upper Midwest for another day.
1218 PM EDT FRI MAY 20 2016 High pressure over the eastern Great Lakes will exit to the east today as low pressure over the lower Mississippi Valley tracks northeast towards southern Ohio tonight. The low will exit to the east on Saturday as energy shifts to the east coast.
COOLER READINGS TOWARD LAKE MICHIGAN DUE TO AN ONSHORE COMPONENT OF THE SURFACE WIND.
WITH HIGH TEMPERATURES IN THE LOWER TO MID 80S ALONG WITH A PREDOMINATE EAST WIND NEAR 10 MPH.
RIDGE OF HIGH PRESSURE WILL CONTINUE BUILDING OVER THE REGION. TEMPERATURES WILL BE 5 TO 10 DEGREES WARMER TODAY AND THEN SLIGHTLY WARMER OVERNIGHT.
MARKED MORE BY LOW LVL WIND CONVERGENCE/MID LVL THETA-E RIDGE THAN ANY MEANINGFUL TEMP/DWPT GRADIENT.
938 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL REMAIN CENTERED JUST TO THE NORTH THROUGH THE WEEKEND.
An upper level high pressure ridge over the eastern U.
LOW PRESSURE WILL LINGER EAST OF THE AREA OVER THE NEXT SEVERAL DAYS KEEPING TEMPERATURES CLOSE TO NORMAL BEFORE HIGH PRESSURE BRINGS MUCH WARMER TEMPERATURES TO THE AREA BY MID WEEK.
1159 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL REMAIN OVER NORTHERN NEW ENGLAND THROUGH SUNDAY.
909 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL REMAIN OVER NORTHERN NEW ENGLAND THROUGH SUNDAY.
HIGH PRESSURE OFF TO THE EAST OF THE AREA CONTINUES TO BE THE MAIN INFLUENCE ON OUR LOCAL WEATHER. AS UPPER RIDGE STRENGTHENS TODAY LOW LEVEL TEMPS WILL CONTINUE TO MODERATE.
INVERTED TROUGH IS WEAKENING OVER THE WATERS WITH WINDS BECOMING MORE EASTERLY.
1039 AM EDT SAT APR 16 2016 DRY HIGH PRESSURE WILL BUILD SOUTHWARD OVER THE REGION THROUGH THE WEEKEND.
1220 PM EDT SAT APR 16 2016 HIGH PRESSURE ACROSS THE REGION AT THE SURFACE AND ALOFT WILL RESULT IN CLEAR SKIES AND ABOVE NORMAL TEMPERATURES.
855 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL KEEP SUNNY SKIES AND WARM SPRING TEMPERATURES OVER NEW YORK AND PENNSYLVANIA THROUGH THE WEEKEND.
607 AM CDT SAT APR 16 2016 A strong high pressure ridge aloft over the Midwest and eastern U. Winds will be 6 to 12 mph from the southeast most of the day due to a gradient between high pressure centered over the northeast U. and low pressure centered over New Mexico.
CHATTANOOGA AIRPORT, TN 76 47 74 49 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 75 45 73 50 / 0 0 0 0 OAK RIDGE, TN 75 46 74 50 / 0 0 0 0 TRI CITIES AIRPORT, TN 73 40 74 45 / 0 0 0 0.
HIGH PRESSURE MAINTAINS ITS GRIP ON THE AREA THIS WEEKEND. THEY SUGGEST READINGS IN THE LOWER 50S IN MANY AREAS.
440 AM PDT SAT APR 16 2016 Strong high pressure will build over the Pacific Northwest this weekend.
810 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL CONTINUE THROUGH THE WEEKEND PROVIDING DRY AND QUIET WITH. HIGH TEMPERATURES WILL BE A FEW DEGREES WARMER EACH DAY.
704 AM CDT SAT APR 16 2016 AN ELONGATED AREA OF LOW PRESSURE AND FRONTAL BOUNDARY STRETCHED FROM THE TEXAS/NEW MEXICO AREA NORTHEAST THROUGH NORTHWEST MINNESOTA AND INTO ONTARIO. AREAS NEAR LAKE SUPERIOR WILL BE COOLER. BUT SLOWLY AS THE BLOCKING PATTERN REMAINS.
AS PRESSURE GRADIENT TIGHTENS WITH BUILDING HIGH PRESSURE NORTH OF THE REGION. INCLUDING A WEAKENING OF THE UPPER LEVEL LOW AND SUBTLE HEIGHT RISES ACROSS THE REGION.
853 AM CDT SAT APR 16 2016 FOR MID-MORNING UPDATE HAVE STRETCHED FREEZING RAIN CHANCES A BIT FURTHER SOUTHWEST TOWARDS THE MINOT AREA AS A REPORT CAME IN WITH SOME LIGHT FREEZING RAIN OVER THAT AREA A BIT AGO. DEEPENING UPPER LOW WILL BRING A WINTRY MIX OR RAIN. SNOW AND FREEZING RAIN TO THE REGION TODAY. KEPT THE WINTER WEATHER ADVISORY IN PLACE AND AND ADDED A FREEZING RAIN ADVISORY NORTH CENTRAL FOR THIS MORNING AND EARLY AFTERNOON.
HIGH PRESSURE AT THE SURFACE OVER THE EASTERN HALF OF THE COUNTRY WILL CONTINUE TO EDGE SLOWLY WEST AS THE UPPER LEVEL RIDGE AXIS ALSO SLOWLY RETROGRADES.
A STRONG LOW PRESSURE SYSTEM NEAR THE FOUR CORNERS WILL BRING COOLER TEMPERATURES AND GUSTY WINDS TO SOUTHEAST ARIZONA THIS WEEKEND.
VFR CONDITIONS WILL PREVAIL SAT AFTERNOON EVEN AS LOW TO MID LEVEL MOISTURE INCREASES ACROSS THE RIO GRANDE VALLEY AND NORTHERN RANCHLANDS IN ADVANCE OF A 500MB LOW/TROUGH ACROSS THE SOUTHWEST UNITED STATES/NORTHERN MEXICO. LOW TO MID LEVEL MOISTURE WILL INCREASE ACROSS TEXAS THIS AFTERNOON AHEAD OF THE 500MB LOW/TROUGH ACROSS THE SOUTHWEST UNITED STATES/NORTHERN MEXICO THIS MORNING. DEVELOPING ACROSS PORTIONS OF NORTHWEST TX TONIGHT AS THE 500MB LOW/TROUGH MOVES SLOWLY EASTWARD.
A THICKER LAYER OF MID TO HIGH LEVEL CLOUDS CURRENTLY OFFSHORE ARE EXPECTED TO MOVE INLAND LATE THIS AFTERNOON AND EVENING, BUT THEY SHOULD THIN OUT AS THEY MOVE INTO THE UPPER RIDGE. THE LOWER CONDITIONS WILL RETURN TO THE SAME AREAS LATE SATURDAY NIGHT. HIGH PRESSURE OFFSHORE AND A THERMAL TROUGH ALONG THE COAST WILL PRODUCE LIGHT TO MODERATE NORTHERLY WINDS THAT WILL PEAK SATURDAY AFTERNOON IN THE OUTER WATERS SOUTH OF CAPE BLANCO.
725 AM EDT SAT APR 16 2016 UPPER-LEVEL PATTERN REMAINS ESSENTIALLY LOCKED IN PLACE OVER THE REGION THROUGH THE PERIOD AS A LARGE BLOCKING PATTERN HAS EVOLVED. FORTUNATELY FOR US WE GET PARKED UNDER THE UPPER RIDGE WHICH SHOULD SEE US CLEARING OUT THROUGH THE DAY TODAY INTO THE OVERNIGHT PERIOD AS THE WEAK UPPER LOW THAT WAS TRAPPED UNDER THE RIDGE CONTINUES TO WEAKEN AND LOSE ITS IDENTITY. MOSTLY CLEAR AND DRY SUNDAY UNDER THE UPPER RIDGE WITH MODERATING EASTERLY LOW-LEVEL FLOW KEEPING TEMPERATURES NEAR SEASONAL NORMALS.
DEEPENING UPPER LOW WILL BRING A WINTRY MIX OR RAIN. SNOW AND FREEZING RAIN TO THE REGION TODAY. KEPT THE WINTER WEATHER ADVISORY IN PLACE AND AND ADDED A FREEZING RAIN ADVISORY NORTH CENTRAL FOR THIS MORNING AND EARLY AFTERNOON.
1006 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL CONTINUE THROUGH THE WEEKEND PROVIDING DRY AND QUIET WITH. HIGH TEMPERATURES WILL BE A FEW DEGREES WARMER EACH DAY.
OUR WIDELY ADVERTISED UPPER LOW IS CLEARLY EVIDENT ON WATER VAPOR SATELLITE SPINNING OVER THE 4 CORNERS REGION. THIS LOW WILL BE RESPONSIBLE FOR PROVIDING THE UPPER LEVEL SUPPORT COINCIDENT WITH A VERY MOIST MT AIRMASS TO PRODUCE SIGNIFICANT RAINS OVER MUCH OF THE STATE OF TEXAS.
641 AM CDT SAT APR 16 2016 A DEEP UPPER LEVEL TROUGH OF LOW PRESSURE CURRENTLY OVER THE FOUR CORNERS REGION WILL CONTINUE SPREADING SHOWERS.
735 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE NORTH THROUGH THE WEEKEND.
1001 AM CDT SAT APR 16 2016 Upper level high over the Great Lakes continues to keep our area clear this morning. Temperatures are already approaching 70 degrees in a few areas and have done some minor upward tweaks to the highs today, with some 80 degree readings possible, especially over the north half of the forecast area. A strong high pressure ridge aloft over the Midwest and eastern U. Winds will be 6 to 12 mph from the southeast most of the day due to a gradient between high pressure centered over the northeast U. and low pressure centered over New Mexico.
AN UPPER LEVEL HIGH SPINNING OVER THE GREAT LAKES WILL KEEP OUR CONDITIONS MOSTLY SUNNY AND WARM ACROSS THE MID STATE TODAY. WITH A LARGE UPPER LOW OVER THE SW CONUS THOUGH. SOME ISO LIGHT SHWRS NOTED S OF BNA ASSOCIATED WITH WEAK UPPER LEVEL LOW REMNANTS. MID STATE ON PERIPHERY OF UPPER LEVEL RIDGING INFLUENCES ASSOCIATED WITH OMEGA BLOCK APPROACHING 16/12Z. BUT THESE RIDGING INFLUENCES SHOULD SLOWLY MOVE EWD THRU 17/12Z.
/ISSUED 444 AM CDT SAT APR 16 2016/ CLOSED UPPER LOW OVER THE SOUTHERN ROCKIES EARLY THIS MORNING WILL MEANDER NORTH AND WEST TODAY THROUGH SUNDAY AROUND THE FOUR CORNERS REGION. A COLD FRONT.
Upper-level cloud cover from the showers and thunderstorms over the High Plains will continue to attempt an eastward push this morning, while increased boundary layer moisture and associated stratus creeps northward out of the Ozarks and into southern portions of the forecast area.
717 AM CDT SAT APR 16 2016 A prominent omega block will take hold today from the CONUS into the western Atlantic with the MS Valley and OH/TN Valley dominated by the upper ridge portion of the block. This pattern will maintain a low level anticyclone across the eastern U. Weather will be seasonably warm and tranquil with high temperatures today comparible to yesterday, and highs on Sunday a tad warmer than today.
1256 PM EDT SAT APR 16 2016 HIGH PRESSURE ACROSS THE REGION AT THE SURFACE AND ALOFT WILL RESULT IN CLEAR SKIES AND ABOVE NORMAL TEMPERATURES.
1010 AM EDT SAT APR 16 2016 HIGH PRESSURE ACROSS THE REGION AT THE SURFACE AND ALOFT WILL RESULT IN CLEAR SKIES AND ABOVE NORMAL TEMPERATURES.
1029 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL REMAIN IN CONTROL OF THE WEATHER PATTERN OVER THE NEXT SEVERAL DAYS.
COOLER TODAY THAN YESTERDAY. THEN COOLER NORTHEAST AND ABOUT THE SAME SOUTHWEST FOR SUNDAY.
625 AM CDT SAT APR 16 2016 00Z UPPER-AIR ANALYSIS REVEALED A TROUGH OVER THE INTERIOR WEST WITH AN ASSOCIATED UPPER-LEVEL JET STREAK FROM THE GREAT BASIN INTO LOWER CO VALLEY. THIS JET STREAK WILL CONTINUE SEWD THROUGH THE BASAL PORTION OF THE PARENT TROUGH. AS THIS JET STREAK PIVOTS AROUND THE ERN PERIPHERY OF THE CLOSED LOW. ANOTHER JET STREAK/VORTICITY LOBE WILL PIVOT AROUND THE ERN PERIPHERY OF THE CNTRL ROCKIES UPPER LOW.
LARGE UPPER LOW IS CLEARLY VISIBLE IN SATELLITE PICTURES OVER EXTREME NORTHWEST NEW MEXICO THIS HOUR. THE HIGH VALLEYS SHOULD SEE 4 TO 8 INCHES AS A GENERALIZATION.
AN UPPER LEVEL RIDGE WILL CONTINUE TO BUILD INTO SOUTHWEST WASHINGTON AND NORTHWEST OREGON TODAY FOR DRY AND WARMER WEATHER AS IT PUSHES A WARM FRONT WELL NORTH OF THE FORECAST AREA.
A LARGE BLOCKING RIDGE IS CURRENTLY SETUP ACROSS THE EASTERN HALF OF THE CONUS. WHILE A WEAK MID LEVEL TROUGH AXIS SINKS SOUTH THROUGH SOUTH CAROLINA AND GEORGIA TODAY AND TONIGHT. HIGH PRESSURE CONTINUES TO BUILD OVER THE MID ATLANTIC STATES. WITH THE HIGHEST CHANCES OVER THE INTERIOR SOUTH OF INTERSTATE 4. THE MID LEVEL TROUGH WILL ROTATE SOUTH OF THE FORECAST AREA. ALLOWING STACKED HIGH PRESSURE TO TAKE CONTROL OF THE WEATHER PATTERN.
THE REGION REMAINS BETWEEN A BUILDING UPPER LEVEL RIDGE ALONG THE WEST COAST AND UPPER LEVEL LOW PRESSURE SYSTEM OVER COLORADO. SOUTHEAST OREGON WILL BE UNDER THE INFLUENCE OF THE UPPER LEVEL RIDGE FOR LIGHT WINDS. WARMING AND DRYING THROUGH SUNDAY AS UPPER RIDGE ALONG THE COAST SHIFTS INLAND AND INTENSIFIES. NORTHERLY FLOW ALOFT TODAY WILL BECOME NELY FOR SEVERAL DAYS BEGINNING SUNDAY AS UPPER LOW IN COLORADO EXPANDS.
934 AM EDT SAT APR 16 2016 HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE NORTH THROUGH THE WEEKEND.
245 PM EDT FRI JUN 10 2016 High pressure over the area will drift east and offshore this evening.
344 PM CDT FRI JUN 10 2016 A broad/weak upper level trough will result in a weakness within the upper level ridge that currently dominates much of the CONUS. A bit of a pattern change will occur by midweek as the weak troughing shifts eastward and upper ridging takes stronger hold of the area.
329 PM EDT FRI JUN 10 2016 High pressure will continue to keep the region dry this evening with temperatures remaining chilly for this time of year. High pressure at the surface will slowly drift to the east through the night which will result in much of the afternoon today and most of tonight dry as well. Cloud coverage will slowly increase from the SW after 06Z tonight as a warm front lifts across the region. This warm front will increase moisture at the sfc and will result in strong WAA aloft. This MCS will be following the warm frontal boundary aloft.
219 PM CDT FRI JUN 10 2016 An upper ridge will be the dominant weather feature to affect the region during the next 7 days. Currently, a weak upper low/MCV is trapped under the ridge and will meander over the region through Saturday before being drawn northeastward away from the region by increasing southwesterly flow aloft ahead of an upper trough progged to take shape over the western ConUS.
306 PM MDT FRI JUN 10 2016 The upper level ridge axis is over northeast Colorado this evening. Clearing skies overnight with the ridge axis shifting to the east on Saturday. with increasing ssely winds at the sfc for a Denver Cyclone.
The upper ridge is firmly in place across the region today, providing for hot and predominantly dry conditions. Isolated convection fired off the higher terrain today by midday, but again has been very slow to spread off of the mts. Temps today have climbed into the 80s for the high valleys, and 90s for the plains as of 3 pm. The upper ridge will remain in place through the short term. Look for max temps tomorrow to be very similar to those experienced today; in the 80s for the high valleys, and in the 90s to near 100 F for the e plains.
1250 PM CDT FRI JUN 10 2016 With a high pressure ridge to the east and warm front to the north. Central Illinois is already in the low to mid 80s. Temps expected to climb into the lower 90s this afternoon. Meanwhile further southwest, upper heights will rise across the remainder of the region thanks to a building dome of high pressure. Mixing up to around 800mb will yield afternoon high temperatures in the lower to middle 90s. Hot weather will continue into Saturday, as upper ridging remains firmly in place over the region. With 592dm heights centered over Illinois, the boundary will struggle southward into the heart of the ridge.
A slow-moving, longwave trough is developing along the West Coast and will dominate our weather through the upcoming weekend.
1050 AM PDT FRI JUN 10 2016 Cooler, breezy and showery weather will impact the Inland Northwest today through the weekend. The slow moving cold front is stuck over extreme eastern Washington this morning with steady light to moderate rain mainly east of line from Republic to Harrington to Washtunca and into north Idaho, where it will be cloudy, stable and cool. Instability will increases as the cold upper low moves steadily inland. The upper low will continue to lift northeast, across the northern Cascades and into southern BC - which will keep the threat of convections going along the Canadian border overnight. 18Z TAFS: A cold front edges across eastern WA/north ID today, with steady rain lingering over most eastern TAF sites through 21-23Z before drying out.
Overnight showers and thunderstorms will develop in response to an upper level trough.
TX still lies in a weakness within the broader ridge across the southern tier of the U. 500-mb subtropical ridge tries to push into the area from the east on Saturday. 0 inch range Saturday, and instability looks stronger than today, so bumped afternoon pops into the high-end isolated/low-end scattered percentages across the area.
This activity was at the base of a very weak 500-hPa trof.
231 PM MDT FRI JUN 10 2016 Flat upper ridge over the central CONUS is building over the CWA as wave pushes through MN. Upper low continues to spin over the Pacific Northwest. Most models are now showing the low farther north on Saturday, while the Canadian is the outlier. However, a strong to severe storm or two may sneak into northwestern SD, especially if the low takes a more southerly track.
At 2 PM MDT Pacific cold front was nearing the OR/ID border with scattered showers and isolated thunderstorms behind it. All of our CWA should be breezy and cooler tonight through Saturday. Upper trough will split north and south Saturday with the northern part retreating into western Canada, while the southern part hangs back in Nevada and California.
241 PM PDT FRI JUN 10 2016 A trough of low pressure moving through the area is producing mid and high clouds as well as cooler temperatures.
1118 AM MDT FRI JUN 10 2016 An upper level ridge wl be ovr the forecast area today and tonight. High temps today wl be above average by around 10 degrees, with readings approaching 100 ovr the southeast plains and in the 80s ovr the high valley areas. A weak disturbance, ahead of the trough moving into California, moves into western Colorado, and a plume of middle and upper level moisture will move into Colorado from the south.
/issued 219 PM CDT FRI JUN 10 2016/ An upper ridge will be the dominant weather feature to affect the region during the next 7 days. Currently, a weak upper low/MCV is trapped under the ridge and will meander over the region through Saturday before being drawn northeastward away from the region by increasing southwesterly flow aloft ahead of an upper trough progged to take shape over the western ConUS.
An upper level low over Washington will produce an unstable showery air mass through Saturday.
338 PM EDT FRI JUN 10 2016 High pressure will prevail tonight before moving offshore this weekend.
205 PM EDT FRI JUN 10 2016 A warm front will push northeast across the Great Lakes today and tonight. Hot temperatures are expected on Saturday as a west to southwest flow develops well ahead of a cold front dropping south toward the Great Lakes.
311 PM CDT FRI JUN 10 2016 An upper level ridge will slide across the area tonight through Saturday night. Temperatures will remain on the hot side as the ridge moves to the east.
120 PM MDT FRI JUN 10 2016 Early afternoon WV imagery and RAP analysis indicates ridging extending across Colorado with axis centered across our CWA. Saturday: Upper level ridge shifts east while trough deepens in this west.
Today Through Saturday Night A large ridge of high pressure encompasses most of the U. This upper ridge will continue over the center part of the country through Saturday night. Upper low pressure will strengthen over the west coast and the northeast U. A weak warm front will move north through the state Saturday.