Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 238 PM CDT Wed Apr 5 2017/ Cloud cover associated with moisture wrapping around the back side of the departing upper low continues to shift ewd across our region this afternoon. Temps to hover very near or even just below seasonal normals for the remainder of the work week, as nw flow aloft and high pressure at the sfc maintain their influence.
A low pressure system over the ne pacific was continuing to pump moisture into Oregon and Washington and the showers across the region will persist tonight.
With ridging aloft and dry air at the surface, I am not expecting much, if any, precip overnight. mpj /ISSUED 208 PM MDT Wed Apr 5 2017/ Upper ridging slowly moves east of the area through tonight, with the area coming under increasing southwest flow aloft Thursday.
547 PM MDT Wed Apr 5 2017 The quiet weather will continue through the short term period as an transitory amplified ridge works of the Rockies into the High Plains. Warm advection is beginning overhead attm as this ridge builds into the region but will really kick into gear tomorrow. Some high cloudiness is topping the ridge and will be moving through the CWA overnight with clearing toward morning. Guidance trends indicate the threat of widespread freezing temperatures becoming less probable in the critical growing areas. Would not be surprised a few low lying areas drop to just below freezing for a few hours such as around Fruita and in the UnCo River Valley.
winds increasing back up to 5-10 knots 14-20z then should become variable as surface ridging moves directly overhead.
A cold front had moved across the station about 90 minutes prior to the flight. /issued 504 PM CDT Wed Apr 5 2017/ Strong cold front is pushing through coastal areas and will quickly exit the forecast area early this evening. Much drier air and cooler air will make for rather pleasant temperatures the next few days along with some cool nights.
/issued 345 PM CDT Wed Apr 5 2017/ Afternoon surface analysis shows the surface cold front has exited the CWA and coastal waters. High pressure will build into the region the region over the next several days.
Proton Weak upper ridge pushing into the area today helped bring welcomed sunshine across the area. But upper flow will flatten and a subtle trough will move into the area Sunday.
657 PM CDT SAT AUG 13 2016 The inverted trough that has been over the forecast area today has triggered an area of scattered showers and thunderstorms. Min temperatures this morning upstream in this airmass were in the low -mid 50s, and the bias corrections to the models support this same temperature range. Sunday the trough shifts even farther east and a weak ridge of high pressure builds in.
High clouds over the forecast area are thickening as a weak upper-level trough moves into the Pacific Northwest. Thickening clouds will keep morning lows warmer than this morning, but current forecast looks to be on track with low temperatures Sunday morning averaging around 5 degrees warmer than this morning.
Quiet weather for the short term as high pressure continues to move in from the northern plains as an upper trof slides across the midwest. Lows in the middle 60s tonight followed by highs in the 80s again tomorrow, a degree or so warmer than today as flow shifts around to the SE.
757 PM EDT SAT AUG 13 2016 A cold front across NW Indiana will move slowly across the forecast area overnight and stall south of the forecast area Sunday.
/00Z TAFS/ A weak cold front has passed through the area as a series of outflow boundaries. The wet pattern comes as a result of different outflow boundaries moving across the area in addition of the proximity of a cold front and a mid-level trough shear axis.
730 PM EDT SAT AUG 13 2016 Bermuda high pressure will be in control of our weather through mid week. Region to remain under the influence of the Bermuda High with plenty of moisture in the low levels.
This is in response to a mid-level low pressure system moving slowly north from Louisiana towards southwest Arkansas.
1019 PM EDT SAT AUG 13 2016 Bermuda high pressure will be in control of our weather through mid week. Region to remain under the influence of the Bermuda High with plenty of moisture in the low levels.
High pressure was beginning to move over Arizona from the west during the evening hours. Many times building high pressure is associated with increasing monsoon activity but when such systems move in from the west a drier and more stable air mass is the result. High pressure will move to the east of Arizona with moist southerly flow returning.
1013 PM MDT SAT AUG 13 2016 High pressure centered over the Desert Southwest will dominate the short term producing a warm and dry NW flow.
Long fetch SE winds to 10-15 knots with seas 2-3 ft near shore to around 3 ft offshore courtesy of elongated high pressure over the Western Atlantic.
749 PM EDT SAT AUG 13 2016 High pressure remains off east coast, keeping front nearly stationary over the Ohio River Valley. Synoptically not a whole lot has changed from the last few days, as high pressure remains locked in place to our east. A cold front is starting to sink into the Lower Ohio River Valley. The high pressure system will impede the front and it should stall out across the lower Ohio River valley slanting up through western or central Ohio.
1023 PM EDT SAT AUG 13 2016 A frontal boundary across southern Maine will begin to lift north as a warm front tonight. Low pressure near Chicago will move into south Quebec tonight, and across the Gulf of Maine on Sunday.
The upper low was located over N LA/S AR with some isolated to scattered showers moving southward across E Texas toward our area.
759 PM EDT SAT AUG 13 2016 Scattered showers and thunderstorms are expected for the rest of the weekend as a weakening cold front slowly approaches. The further south the outflow moves, the weaker the storm development is, likely due to warmer air aloft and a bit more stable atmosphere.
742 PM EDT SAT AUG 13 2016 Scattered showers are expected mainly over northwest Ohio and northeast Indiana tonight as a cold front moves through the area. Lows tonight will be in middle to upper 60s with highs Sunday in the lower to middle 80s.
500 mb short wave trough moving into central ND and southern Manitoba. Convective temps in the low to mid 70s and about 1000 j/kg CAPE means scattered showers maybe a t-storm. High pressure over central ND tonight moving east into Sunday.
936 PM EDT SAT AUG 13 2016 Scattered showers and thunderstorms are expected for the rest of the weekend as a weakening cold front slowly approaches.
1212 AM EDT SUN AUG 14 2016 A frontal boundary across southern Maine will begin to lift north as a warm front tonight. Low pressure near Chicago will move into south Quebec tonight, and across the Gulf of Maine on Sunday.
Warm and muggy overnight tonight followed by Excessive heat conditions again in the lower to middle Susquehanna Valley again on Sunday. General pattern continues with the upper level ridge off the Southeast Coast and a trough over the Upper MS Valley. Excessive heat warning for the Lower Susq Valley to Harrisburg continues with a Heat Advisory for counties surrounding that up to Williamsburg and west out to Franklin County.
624 PM CDT SAT AUG 13 2016 A trough over the central U. There is a southern portion of this trough located across Louisiana and eastern Texas. While just east of the Plains gets inundated, the Central Plains will remain under high pressure. Primary focus - Possible precipitation across southeast Kansas dependent on movement low pressure system. A relief in the heat and humidity is in store with temperatures dropping just a couple of degrees below seasonal normals of the lower 90s and drier air moving into the area. As mentioned in the synopsis section, the ridge is expected to stay in place through the short term. There is a question to the track of the southern extent of the low pressure system positioned over Louisiana and Texas.
622 PM CDT SAT AUG 13 2016 /00Z TAFS/ Cold front is currently located across our southern counties with drier air farther to the north. think the lower ceilings will stay to the east. The upper low will still be close enough to the region on Sunday to keep low chances for showers and thunderstorms across all of North Texas.
Otw, the primary trough axis to our west will actually take a retrograde motion toward the west through the taf period.
/issued 240 PM CDT SAT AUG 13 2016/ SHORT TERM (Tonight through Sunday Night): upper pattern shift slowly getting underway as we begin to transition from dominant high pressure centered over northeast Mexico to that of lower pressure aloft as an upper trough/shear axis moves to settle over south TX from the north. Currently, waves of thick low/mid clouds continue to attempt to push into the northwest portion of the forecast area in association with the upper trough over central TX. Overnight tonight, moisture will increase across the Rio Grande Valley as the upper high to our west continues to nudge westward and the upper trough/shear axis creeps closer from the north.
/issued 551 PM CDT SAT AUG 13 2016/ /00Z TAFS/ The cold front responsible for showers and thunderstorms over West Central Texas today has moved south of the area and no additional rainfall is anticipated during the next 24 hours. /issued 400 PM CDT SAT AUG 13 2016/ (Tonight and Sunday) Drier air was moving in behind a cold front that has pushed through West Central Texas. Lows tonight will be mainly in the upper 60s as cooler and drier air filters in, especially across the Big Country and northern Concho Valley. The cooler temperatures will be over southern and eastern sections where more moisture and clouds prevail.
00 UTC surface analysis shows our region in between an area of low pressure across Eastern Texas and an area of high pressure off the East Coast.
1118 PM CDT SAT AUG 13 2016 A trough over the central U. There is a southern portion of this trough located across Louisiana and eastern Texas. While just east of the Plains gets inundated, the Central Plains will remain under high pressure. Primary focus - Possible precipitation across southeast Kansas dependent on movement low pressure system. A relief in the heat and humidity is in store with temperatures dropping just a couple of degrees below seasonal normals of the lower 90s and drier air moving into the area. As mentioned in the synopsis section, the ridge is expected to stay in place through the short term. There is a question to the track of the southern extent of the low pressure system positioned over Louisiana and Texas.
825 PM EDT SAT AUG 13 2016 Low pressure continues to track NE out of Lower Michigan this afternoon. but have reach into the low to mid 70s across much of Northern Lower Michigan. with no precip expected overnight into Sunday morning as a large area of strong high pressure builds into the Great Lakes region. acting on lingering low level moisture and cooler air aloft. Tonight will be noticeably cooler than last night as overnight lows range from the mid 50s in Eastern Upper Michigan to the upper 50s and lower 60s across Northern Lower Michigan.
1130 PM CDT SAT AUG 13 2016 At 3 PM, a cold front extended from Oscoda Michigan (KOSC) to West Plains Missouri (KUNO). Dew points ahead of this cold front were in the lower and mid-70s. Meanwhile northwest surface winds in the wake of this front has lowered the dew points in the Upper Mississippi River Valley into the lower to mid-60s, so definitely more comfortable than the last couple of days. The combination of this instability and a mid- to upper level trough, isolated to scattered showers and thunderstorms (primarily over western Minnesota) have developed across Minnesota and Wisconsin. On Sunday, high pressure will build across the region.
Strong high pressure continues to result in hot and dry weather across the interior of NorCal. Current temperatures are running a few degrees warmer compared to 24 hours ago and are nearing the century mark at many locales across the Central Valley. but it certainly looks like the low PoPs are warranted in Shasta Co. especially with what happened Wed with a similar short wave emebedded within an upper level trof.
The low levels remain quite moist with a light NW flow, and the start of radiational cooling is seemingly helping redevelop low clouds where it had cleared. Low pressure continues to track NE out of Lower Michigan this afternoon. but have reach into the low to mid 70s across much of Northern Lower Michigan. with no precip expected overnight into Sunday morning as a large area of strong high pressure builds into the Great Lakes region. acting on lingering low level moisture and cooler air aloft. Tonight will be noticeably cooler than last night as overnight lows range from the mid 50s in Eastern Upper Michigan to the upper 50s and lower 60s across Northern Lower Michigan.
A strong upper ridge remains in control tonight. Chattanooga Airport, TN 75 93 74 92 / 20 20 20 30 Knoxville McGhee Tyson Airport, TN 73 92 72 90 / 20 30 20 30 Oak Ridge, TN 74 92 72 91 / 20 30 20 30 Tri Cities Airport, TN 70 90 69 90 / 20 30 20 30.
330 AM CDT WED MAY 4 2016 AN AXIS OF HIGH PRESSURE WILL CONTINUE TO SETTLE IN OVER THE AREA TODAY. SUNNY SKIES AND LIGHT WINDS ARE EXPECTED WITH HIGHS IN THE LOW 60S EAST TO LOW 70S WEST. A BROAD UPPER RIDGE WILL DOMINATE THE INTERMOUNTAIN WEST OVER THE NEXT COUPLE OF DAYS. SOUTHWESTERLY WINDS WILL INCREASE ON THURSDAY IN RESPONSE TO A LOW PRESSURE SYSTEM IN CENTRAL MANITOBA.
257 AM PDT WED MAY 4 2016 A LOW PRESSURE SYSTEM WILL SLOWLY APPROACH FROM THE PACIFIC AND RESULT IN COOLER AND CLOUDIER WEATHER TODAY AND THURSDAY.
WHILE A RIDGE EXTENDS WESTWARD ACROSS CUBA. A MID LATITUDE TROUGH CONTINUES TO DIG SOUTHWARD INTO THE EXTREME SOUTHEASTERN UNITED STATES AND NORTHERN GULF MEXICO. OUTSIDE OF IMPULSES IN THE LAGGING TROUGH ALOFT. EXCELLENT MOIST CYCLONIC FLOW ON THE LEADING FLANK OF THE LOWER LEVEL TROUGH. A COOLER AND MUCH DRIER AIR MASS WILL SPREAD ACROSS THE KEYS IN WAKE OF THE LATE SEASON COLD FRONT. THE COMBINATION OF THE REINFORCING TROUGHS AND HEATING AND COOLING CYCLES OVER SOUTH FLORIDA WILL RESULT IN CONSIDERABLE VARIATIONS IN WIND SPEEDS.
HIGH PRESSURE CONTINUES TO MOVE OFF TO THE EAST ALLOWING A TROUGH ALONG THE WEST COAST TO NUDGE INLAND. THE TROUGH HAS INCREASED INSTABILITY OVER THE WESTERN PORTION OF THE FORECAST AREA THIS AFTERNOON AND EVENING LEADING TO SOME SHOWERS AND A FEW LIGHTING STRIKES. TEMPERATURES WILL BE A LITTLE COOLER OVER MOST OF THE FORECAST AREA DUE TO THE CLOUD COVER.
MERIDIONAL FLOW ALOFT AROUND A SHARP TROF OVER ERN NOAM WILL MAKE FOR POIGNANT CAA TDA THRU TNGT ACRS THE AREA. THE NOTICEABLE CAA WILL DROP MAX TEMPS TDA ABOUT 10 DEGREES COOLER THAN YDA. TEMPERATURES WILL BE WARMER WITH NO FROST EXPECTED.
AREAS SEEING DAYTIME CUMULUS THAT DEVELOPED OVER THE PAST COUPLE HOURS ARE THE LOCALES MOSTLY SEEING THE LOWER RANGE OF TEMPS.
WEAK LOW PRESSURE ALOFT WILL RESULT IN COOLER AND SLIGHTLY UNSETTLED CONDITIONS OVER THE REGION THROUGH THURSDAY.
633 AM EDT WED MAY 4 2016 A COLD FRONT CROSSING THE MIDLANDS EARLY THIS MORNING WILL MOVE OFF THE COAST BY MID-MORNING. A COOLER AND DRIER AIRMASS WILL OVERSPREAD THE REGION TODAY. A REINFORCING COLD FRONT WILL CROSS THE AREA TONIGHT.
FRONT AND PRECIP EXPECTED TO CLEAR OUT OF SOUTH FLORIDA BY DAYBREAK THURSDAY AS THE MAIN UPPER LEVEL TROUGH AND UPPER LEVEL LOW SWINGS EAST INTO THE ATLANTIC.
THIS ACTIVITY IS ASSOCIATED WITH A SHARP SHARP WAVE TROUGH. WITH FREEZING LEVELS HOVERING AROUND 5. COLD ADVECTION WILL TAKE OVER OVERNIGHT WITH LOWS FALLING INTO THE LOWER 40S AREAWIDE. HIGHER TERRAIN IN THE SOUTHEAST MAY CREEP INTO THE LOW TO MID 30S. UPPER LEVEL LOW WILL DROP SOUTHWARD WITH MOISTURE INCREASING AND WINDS TURNING MORE NORTHWEST FAVORING UPSLOPE FLOW. LOW FREEZING LEVELS WILL PROMOTE SMALL HAIL WITH ANY STORMS. A DEEP UPPER LOW WILL BE DEPARTING TO THE EAST AS THE PERIOD STARTS. WITH THE LOW MOVING FURTHER AWAY.
LOW PRESSURE IS CENTERED OVER THE GREAT LAKES REGION WITH A COLD FRONT STRETCHING FROM THE NORTHERN MISSISSIPPI VALLEY INTO THE NORTHERN HIGH PLAINS. NORTH/NW UPPER FLOW IS EXPECTED TO REMAIN OVER THE PLAINS THROUGH THU AS THE AREA REMAINS STUCK BETWEEN A DEEP TROUGH ON BOTH COASTS. UPPER RIDGE WILL START TO BREAK DOWN FRI AS THE DEEP CLOSED LOW APPROACHES THE SOUTHERN ROCKIES. THIS TIME FRAME IS STARTING TO LOOK ACTIVE AS THE SLOW MOVING UPPER LOW FINALLY MIGRATES OUT INTO THE PLAINS. THERE IS GOOD MODEL AGREEMENT THAT THE UPPER LOW WILL BE CENTERED OVER THE CENTRAL GREAT BASIN WITH SOME OF THE ENERGY STARTING TO LIFT OUT ACROSS THE HIGH PLAINS OF EASTERN CO.
302 AM EDT WED MAY 4 2016 AN UNSETTLED WEATHER PATTERN WILL REMAIN ACROSS CENTRAL NY AND NORTHEAST PA THROUGH THE END OF THE WEEK AS AN UPPER LEVEL LOW DROPS SOUTHEAST AND COVERS THE MIDDLE ATLANTIC STATES AND THE NORTHEAST. THERE WAS ALSO SOME PATCHY DENSE FOG REPORTED OVER THE HIGHER TERRAIN IN THE POCONOS.
UPPER LEVEL RIDGE AXIS WILL BE OVER WYOMING TODAY AND THURSDAY WITH WEAK SFC PRESSURE GRADIENTS AND WEAK WINDS ALOFT.
AN UPPER AIR LOW PRESSURE SYSTEM WILL BE DIVING SOUTHEAST THROUGH THE MIDWEST. THAT UPPER LOW WILL TRACK INTO NORTH CAROLINA TONIGHT THROUGH THURSDAY.
220 AM MDT WED MAY 4 2016 PLEASANT WEATHER CONTINUES TODAY AS HIGH PRESSURE REMAINS IN CONTROL. THE RIDGE AXIS THAT HAS SET UP OVER THE CWA WILL SLOWLY MOVE EAST WITH LITTLE CHANGE TO EXPECTED WEATHER. SIMILAR CONDITIONS WILL OCCUR AGAIN ON THURSDAY THOUGH AN AREA OF LOW PRESSURE JUST OFF THE WEST COAST WILL START TO AFFECT OUR WEATHER. THIS LOW WILL CAUSE THE PRESSURE GRADIENT TO TIGHTEN SOME ALLOWING FOR SOME GUSTY WINDS MAINLY OVER SOUTHEASTERN UTAH. THE LOW WILL ALSO ALLOW MOISTURE CONTENT TO INCREASE. THE LOW PRESSURE CENTER APPROACHING SOUTHERN CALIFORNIA WILL FORCE THE RIDGE AXIS THAT BROUGHT THE NICE WEATHER TO OUR EAST.
619 AM EDT WED MAY 4 2016 [Through 12z Thursday] Skies will be clearing today as a cold front moves through the area, and VFR conditions are expected to prevail through the period. A cold front will push through the area today with skies clearing from west to east through the day.
1211 AM CDT WED MAY 4 2016 Quiet weather will continue over the next several days as upper- level ridging continues to dominate the pattern across the central U. In the short term, a weak cold front will slide through the region tomorrow morning, slightly reducing temperatures and veering and increasing winds; but without any moisture, skies should remain clear and allow temperatures to still warm into the mid to upper 60s throughout the forecast area.
Strong high pressure ridge axis is firmly established along the spine of the Rocky Mountains by 7 pm, with dry air and subsidence delivering a clear sky across SW KS. Tropospheric flow will remain northerly on the front side of the ridge axis, with northerly surface winds of 15-25 mph this afternoon.
WINDS WILL THEN BECOME GUSTY FROM THE SW DURING THE DAY BEFORE BECOMING NW AS A DRY COLD FRONT MOVES THOUGH. WITH NW WINDS STAYING IN PLACE AS HIGH PRESSURE DOMINATES THE WEATHER PATTERN. HAVE ADJUSTED THE LOWS ACROSS PORTIONS OF THE SOUTHERN CWA AS DEWPOINTS HAVE COME UP A BIT. THINK THAT AREAS IN THE SE MAY STAY A DEGREE OR TWO WARMER. BUT A NEW COLD FRONT WILL DROP SOUTH THROUGH THE STATE ON WED. HIGH PRESSURE WILL THEN APPROACH THE REGION BEHIND THIS COLD FRONT WED NIGHT INTO THU.
AND THURSDAY COOLER AIR BEHIND A DEPARTING COLD FRONT WILL KEEP HIGH TEMPERATURES COOLER TODAY. THERE WILL STILL BE A SLIGHT CHANCE FOR LIGHT RAIN SHOWERS ACROSS EXTREME NORTH CENTRAL WISCONSIN THIS MORNING AS WATER VAPOR IMAGERY SHOWS A SMALL VORT MAX ROUNDING THE TROUGH LOCATED ACROSS THE WESTERN GREAT LAKES. MODEL SOUNDINGS SHOW MEAGER MOISTURE IN PLACE BEHIND THE COLD FRONT. CLEARING SKIES AND LIGHT WINDS TONIGHT WITH A RIDGE OF HIGH PRESSURE OVERHEAD WILL ALLOW OVERNIGHT TEMPERATURES TO PLUNGE INTO THE MIDDLE TO UPPER 20S ACROSS NORTH CENTRAL WISCONSIN. ACROSS CENTRAL WISCONSIN LOWS COULD APPROACH FREEZING. FURTHER NORTH THERE WILL BE NO HEADLINES DESPITE COOLER TEMPERATURES AS HEADLINES FOR THAT PORTION OF THE FORECAST AREA HAVE NOT STARTED. THE RIDGE WILL SINK SOUTH ON THURSDAY.
344 AM CDT WED MAY 4 2016 HI AMPLITUDE RIDGING WILL BE THE PRIMARY WEATHER DRIVER FOR TODAY WHICH WILL BE RATHER PLEASANT AND TRANQUIL FOR MAY. RIDGE AXIS SLOWLY SHIFTS EASTWARD THURSDAY PROVIDING SEASONAL TO SLIGHTLY WARMER TEMPS AND LIGHT WINDS UNDER RISING HEIGHTS ALOFT AS THE CLOSED LOW ENCROACHES ON OUR REGION FROM THE WEST.
UPPER TROUGH AXIS WILL BE WORKING ACROSS THE MID STATE OVERNIGHT. WITH APPROACHING UPPER LEVEL TROUGH/CLOSED LOW. EXPECT A DIMINISHING OF SHWRS AND TSTM CHANCES LATE AFTERNOON BNA/CKV PER SFC FRONTAL PASSAGE/UPPER LEVEL TROUGH PASSAGE.
425 AM EDT WED MAY 4 2016 A COLD FRONT CROSSING THE MIDLANDS EARLY THIS MORNING WILL MOVE OFF THE COAST BY SUNRISE. A COOLER AND DRIER AIRMASS WILL OVERSPREAD THE REGION TODAY. A REINFORCING COLD FRONT WILL CROSS THE AREA TONIGHT.
UPPER LEVEL TROUGH SINKS FURTHER SOUTH TODAY AND ASSOCIATED COLD FRONT APPROACHES LATER THIS AFTERNOON/EARLY EVENING. SOME OF THESE SHOWERS MAY PRODUCE SMALL HAIL AS FREEZING HEIGHTS WILL BE LOWERING THROUGH THE DAY WITH COLD AIR ALOFT MOVING IN WITH TROUGH.
Even more sunshine is expected Wednesday in the wake of the existing trough. Temperatures will be a couple of degrees warmer but still slightly below seasonable normals. An upper level ridge will expand eastward while southerly winds return.
AN UPPER LOW PRESSURE CENTER WILL CROSS SOUTH THROUGH THE REGION TONIGHT.
WINDS WILL BE SIGNIFICANTLY LOWER TOMORROW AS HIGH PRESSURE MOVES OVER THE AREA. WEDNESDAY HIGHS UPPER 60S JAMES RIVER VALLEY TO THE LOWER 80S NORTHWEST. THE EXTENDED BEGINS WITH A TROUGH-RIDGE-TROUGH PATTERN WITH THE RIDGE OVER THE CENTRAL CONUS. WITH TIME THE SOUTHWEST UPPER LOW DEEPENS AND MIGRATES INTO THE GREAT BASIN BY THE WEEKEND WITH SPLIT FLOW OVER THE NORTHERN PLAINS.
LOW PRESSURE SYSTEM WILL CONTINUE TO MOVE CLOSER TO THE CALIFORNIA COAST. AS THE UPPER LEVEL LOW TRACKS INLAND OVERNIGHT SOME FORCING ALONG WITH ELEVATED INSTABILITY WILL STILL BE OVER THE NORTHEAST PORTIONS OF THE FORECAST AREAS. IN ADDITION THE POSITION OF THE LOW DURING THE AFTERNOON WOULD FAVOR A SOUTHEAST UPSLOPE FLOW.
604 AM EDT WED MAY 4 2016 COOL LOW PRESSURE WILL KEEP SHOWERS IN THE FORECAST THROUGH THURSDAY.
144 AM EDT WED MAY 4 2016 A COLD FRONT WITH WEAK AREAS OF LOW PRESSURE MOVING NORTHEAST ALONG THE BOUNDARY.
AS IT ROUNDS THE BASE OF THE BIGGER TROUGH AND DIVES INTO THE SOUTH LATER THIS AFTERNOON.
A HIGHLY AMPLIFIED UPPER LEVEL RIDGE AXIS EXTENDED FROM THE ALBERTA/SASKATCHEWAN BORDER. THE RIDGE WILL BEGIN TO DEAMPLIFY AND MOVE EAST TOWARDS THE DAKOTAS. AS THE RIDGE AXIS SHIFTS OVER THE MONTANA/NORTH DAKOTA BORDER AND FLATTENS.
1028 PM PDT TUE MAY 3 2016 High pressure will begin to slowly shift east over the next couple days allowing more moisture into the region. This will result in a cooler, unsettled pattern with a good chance for showers and thunderstorms with locally heavy rain by late Wednesday and Thursday.
THIS WILL BRING COOLER TEMPERATURES TO THE AREA BEGINNING WEDNESDAY ALONG WITH A POSSIBILITY OF SHOWERS AND A RISK OF AFTERNOON THUNDERSTORMS.
Believe that better chances for SHRA will remain E of the area, but have kept mention of isod SHRA for early to mid this afternoon as a vort max rotates around the upper low.
HIGH PRESSURE ALOFT WILL BRING DRY CONDITIONS AND WARMER TEMPERATURES THROUGH THURSDAY.
The winds will diminish quickly by early tonight as high pressure starts to move in from the west.
RIDGE BUILDS ACROSS THE REGION BRINGING DRY AIR INTO THE AREA WHICH WILL CLEAR SKIES WITH VFR PREVAILING FOR THE NEXT 24 HOURS. UPPER LEVEL TROUGH WILL MOVE ACROSS THE CENTRAL PLAINS WITH A REINFORCING HIGH PRESSURE AT THE SURFACE MAKING IT THROUGH THE CWA EARLY THIS MORNING. RIDGE BEGINS TO BUILD RETURNING NORTHERLY FLOW ALOFT BREAKING THE OVC TO BKN CLOUD DECK BY THIS AFTERNOON. THURSDAY RIDGE BUILDS MOVES FURTHER EAST INTO THE CENTRAL PLAINS WITH MUCH DRIER AIR MOVING INTO THE AREA. TEMPERATURES THURSDAY WILL BE MUCH WARMER REACHING THE MID 90S OUT WEST AND LOW 90S NEAR THE COAST.
WATER VAPOUR SHOWED UPPER RIDGE DOMINATING WEATHER OVER THE ROCKIES. THIS RIDGE WILL SHIFT OVER THE NORTHERN PLAINS WEDNESDAY/THURSDAY.
A cold front will push through the area today with skies clearing from west to east through the day.