Aikyam-Lab/Synoptic-Bench huggingface dataset:
DRY UPPER RIDGING OVER THE AREA TODAY AND TONIGHT WILL BEGIN TO SHIFT EAST OF THE REGION SATURDAY ALLOWING A MOISTURE INCREASE. MID AND UPPER LEVEL RIDGING WILL EXPAND OVER THE REGION TODAY FROM THE GULF OF MEXICO. IT WILL REMAIN DRY WITH H85 NORTHWEST DOWNSLOPE FLOW TODAY AND H5 RIDGING THROUGH TONIGHT. FOLLOWED THE GUIDANCE CONSENSUS FOR THE LOW TEMPERATURE TONIGHT. SOME INCREASE IN MOISTURE WILL OCCUR SATURDAY WITH A LOW-LEVEL SOUTHERLY FLOW AND THE UPPER RIDGE BEGINNING TO SHIFT EAST OF THE REGION.
1247 PM PDT FRI APR 29 2016 A cooler system will bring increased cloud cover and areas of rain across Eastern Washington and north Idaho today.
A SPOKE OF ENERGY ASSOCIATED WITH THE LOW PRESSURE DISTURBANCE OVER WESTERN MONTANA BEGAN ROTATING INTO SOUTHEAST IDAHO THIS MORNING AND GENERATING SCATTERED SHOWERS FROM THE UPPER SNAKE PLAIN DOWN THROUGH MALAD. A NEW LOW PRESSURE TROUGH IS ALSO ENTERING THE PACIFIC NORTHWEST THIS AFTERNOON AND ADDING TO CONVECTIVE ACTIVITY OVER THE CENTRAL MOUNTAINS. THIS NEW TROUGH DEVELOPS A CLOSED CIRCULATION THAT MOVES QUICKLY INTO NEVADA THIS EVENING. THIS MORNINGS MODEL RUNS TRACK THIS LOW FURTHER SOUTH INTO ARIZONA ON SATURDAY SO WE GET ANOTHER DOES OF WRAP AROUND MOISTURE AND SHOWERS.
224 PM CDT FRI APR 29 2016 CUMULUS/STRATOCUMULUS CLOUDS HOLDING STUBBORNLY ACROSS THE AREA THIS AFTERNOON AS MOISTURE IS TRAPPED UNDER HIGH PRESSURE SUBSIDENCE INVERSION. MOISTURE CONVEYOR BELT/BAND OF SHOWERS WRAPPING AHEAD OF THE LOW LOOKS TO STAY MAINLY SOUTH OF THE AREA. BUT SLOWLY TIGHTENING PRESSURE GRADIENT OVERNIGHT SHOULD HELP KEEP THE LOWER BOUNDARY LAYER STIRRED WITH NORTHEAST WINDS IN THE 5-10 MPH RANGE TO DETER FROST DEVELOPMENT. TO THE LOWER 40S MAINLY ALONG AND WEST OF THE MISSISSIPPI RIVER. DRY NORTHEAST FLOW OUT OF HIGH PRESSURE OVER CANADA SHOULD PRODUCE A SHARP NORTHERN EDGE TO THESE RAINSHOWERS. TOPPING OFF IN THE LOWER 50S. SHOWERS SLOWLY DIMINISH SATURDAY NIGHT AS HIGH PRESSURE BUILDS SOUTH OUT OF CANADA WITH LOW TEMPERATURES FALLING INTO THE UPPER 30S TO THE LOWER 40S.
SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAIN WILL CONTINUE TO BE LATEST SATELLITE IMAGERY SHOWED AN UPPER TROUGH OVER THE ROCKIES. WHICH HAD BECOME NEGATIVELY TILTED WITH AN ASSOCIATED NEARLY CLOSED LOW NEAR THE FOUR CORNERS REGION. AN UPPER JET SEGMENT OF 110 KNOTS WAS COMING AT THE BASE OF THE UPPER TROUGH. A SERIES OF SHORT WAVES WAS COMING OUT OF THE UPPER TROUGH IN THE SOUTHERN STREAM FROM THE SOUTHWEST. ON THE SURFACE A WARM FRONT WAS NOTED ACROSS THE NORTHWEST. EXPECT AN ACTIVE PERIOD AS THE CLOSED LOW NEAR THE FOUR CORNERS REGION BRINGS IN A SERIES OF SHORT WAVES IN FROM THE SOUTHWEST.
A WARM FRONT AND UPPER LEVEL SHORT WAVE WILL MOVE ACROSS AR AND DEVELOP SCATTERED TO A TIME NUMEROUS SHOWERS AND THUNDERSTORMS.
SATELLITE THIS AFTERNOON IS SHOWING AN UPPER LOW MOVING ACROSS SOUTHEAST COLORADO AS BROAD TROUGHINESS REMAINS ACROSS THE ENTIRE ROCKY MOUNTAIN REGION. THIS UPPER LOW CONTINUES TO ROTATE CLOUDS NORTHWARD ACROSS WYOMING AND MONTANA. THIS LOW SLOWLY MOVES ACROSS SOUTHERN NEBRASKA WHILE A SECOND UPPER LOW AND AREA OF VORTICITY TAKE SHAPE OVER THE FOUR CORNERS REGION.
A COLD FRONT WILL MOVE THROUGH TONIGHT SHIFTING WINDS TO THE NORTH AT ALL TAF SITES. STRONG SUBSIDENCE ALOFT WILL SPREAD OVER THE REGION THIS AFTERNOON ON THE BACK SIDE OF THE UPPER LOW MOVING ACROSS COLORADO. DRY WESTERLY SURFACE WINDS QUICKLY SPREAD ACROSS WEST TEXAS BEHIND THE UPPER LEVEL TROUGH AXIS AS IT PIVOTS NORTHWARD ACROSS THE TEXAS PANHANDLE INTO THE CENTRAL PLAINS DURING THE LATTER HALF OF THE AFTERNOON. THIS TROUGH WILL BE SUPPORTED BY A JET STREAK FROM NRN NEW MEXICO TO THE OZARKS.
CENTRAL AND SOUTHWEST MONTANA REMAIN UNDER THE INFLUENCE OF AN UPPER LEVEL LOW WITH BROKEN LOW- TO MID- LEVEL CLOUDS FOR MVFR/VFR CONDITIONS.
404 PM MDT FRI APR 29 2016 THE CENTER OF THE CLOSED LOW HAS BEEN TRACKING EASTWARD ACROSS NORTHERN NEW MEXICO THROUGHOUT THE DAY. AS THE UPPER LOW DRIFTS EAST OF COLORADO ON SATURDAY. THEN THE NEXT UPPER LOW OF WHICH MODELS ARE IN GOOD GENERAL AGREEMENT FOR TIMING AND INTENSITY.
251 PM EDT FRI APR 29 2016 HIGH PRESSURE OVER THE AREA RIGHT NOW BUT THINGS WILL CHANGE QUICKLY OVER THE NEXT 12-24 HOURS. THE HIGH-RES MODELS ARE IN FAIRLY GOOD AGREEMENT AND SHOWING JUST A FEW SHOWERS MOVING INTO W GA TONIGHT THEN DIMINISHING. TEMPS WILL CONTINUE TO BE A BIT WARMER THAN SEASONAL NORMS WITH HIGHS SAT IN THE 870S TO LOWER 90S.
121 PM EDT FRI APR 29 2016 LOW PRESSURE WILL MAINTAIN CLOUDY SKIES WITH SHOWER CHANCES TODAY.
1244 PM CDT FRI APR 29 2016 15z/10am surface analysis shows stationary frontal boundary extending from West Virginia southwestward to an area of low pressure over the Texas panhandle. Meanwhile, high pressure over southern Canada dominates the weather across the Great Lakes/Midwest. This high will gradually shift off to the east, allowing the front to slowly lift northward tonight. Highs will mainly be in the lower to middle 60s, but will top out around 70 degrees south of I-70 where sunshine will be more prevalent. Expect light winds and slightly cooler than normal temperatures. Deep trof over the western half of the CONUS will eject out another low for the Midwest this weekend.
143 PM EDT FRI APR 29 2016 HIGH PRESSURE WILL REMAIN ACROSS THE SOUTHEAST REGION. BEFORE A COLD FRONT PUSHES IN FROM THE NORTHWEST SATURDAY NIGHT.
209 PM EDT FRI APR 29 2016 RAIN SHOWERS WILL CONTINUE TO EXIT EAST THIS AFTERNOON AS LOW PRESSURE PULLS EAST OF THE AREA. REINFORCED BY THE EASTWARD EJECTION OF THE AFORMENTIONED UPPER LOW THROUGH MID AFTERNOON. PRECIPITATION AND CORRESPONDING HIGHER CLOUD COVERAGE WILL AGAIN ACT TO RESTRICT THE DIURNAL TEMPERATURE RESPONSE OF AN ALREADY COOL RESIDENT THERMAL PROFILE /850 MB TEMPS NEAR FREEZING/. HIGHS LARGELY IN THE LOWER 50S. GENERAL SURFACE RIDGING AND CORRESPONDING DRY LOW LEVEL EASTERLY FLOW.
FORECAST - THE RIDGE AXIS TO OUR NORTH WILL BE REINFORCED ON SATURDAY.
At 12z Friday a 700mb and 500mb trough/low was located near the four corner2 region with a 250mb jet extending from the base of this upper low northeast into eastern New Mexico. Another upper level trough was located off the British Columbia coast. Temperatures will be held down into the lower to mid 40s today in western Kansas, with some lower 50s in south central Kansas. Temperatures will fall into the 30s in western Kansas tonight, and some places could see readings close to the freezing mark if there are any breaks in the clouds. The best chance of the near-freezing temperatures is in far southwestern Kansas.
354 PM CDT FRI APR 29 2016 A WARM MUGGY AIRMASS IS SITUATED ACROSS THE REGION THIS AFTERNOON WITH LOW PRESSURE DEEPENING ALONG THE RED RIVER OF OKLAHOMA AND TEXAS GUSTY SOUTHEAST WINDS ARE CONTINUING TO INCREASE THE MOISTURE LEVELS ACROSS THE AREA.
TRAILING BEHIND THE DRYLINE IS A PACIFIC COLD FRONT LOCATED ROUGHLY ALONG AN OZONA TO DRYDEN LINE. THE EXCEPTION COULD BE ALONG AND EAST OF THE I-35 CORRIDOR LATE TONIGHT INTO SATURDAY MORNING AS THE PACIFIC COLD FRONT MOVES IN FROM THE WEST. A MORE NORTHERN STREAM COLD FRONT MOVES IN AND THIS SHOULD SHIFT THE FOCUS FOR CONVECTION SOUTHWARD INTO THE COASTAL PLAINS.
CONFIDENCE IN THE PLACEMENT OF THE HIGHEST RAIN CHANCES IS LOW. THE WRF-ARW INDICATES ANOTHER MCS DEVELOPING IN THE PLAINS AND MOVING TOWARDS THE WESTERN COUNTIES DURING THE AFTERNOON WHICH IS PLAUSIBLE GIVEN THE WESTERLY TO NORTHWESTERLY CORFIDI VECTORS AND INCREASING UPPER-LEVEL DIFFLUENCE MOVING IN FROM THE WEST AS A JET STREAK ROUNDS THE BASE OF A BROAD UPPER-LEVEL TROUGH OVER THE WESTERN US. THEREFORE WILL PLACE THE HIGHEST RAIN CHANCES IN THE WEST WITH LOW CONFIDENCE.
/ISSUED 1149 AM CDT FRI APR 29 2016/ STRONG SHORT WAVE TROUGH CURRENTLY CENTERED OVER N NM TO EJECT NE INTO THE CENTRAL STATES THROUGH SATURDAY. THIS TROUGH TO PROVIDE NUMEROUS TSTMS THROUGH SATURDAY WITH MVFR CEILINGS. BAND OF STRONG STORMS CONTINUE TO TRAIN ALONG A WARM FRONT DRAPED ROUGHLY ALONG THE RED RIVER OF NE TX/SE OK EWD INTO SRN AR. AS THE UPPER LOW INCHES EWD TODAY/TONIGHT.
ISSUED BY NATIONAL WEATHER SERVICE GRAY ME 150 PM EDT FRI APR 29 2016 HIGH PRESSURE WILL REMAIN ACROSS THE AREA THROUGH SATURDAY.
110 PM PDT FRI APR 29 2016 A quick moving low pressure system will drop into western Nevada later today bringing cooler conditions, showers, and gusty northeast winds through Saturday.
1100 AM PDT FRI APR 29 2016 A cooler system will bring increased cloud cover and areas of rain across Eastern Washington and north Idaho today.
1246 PM CDT FRI APR 29 2016 Large trough of low pressure continues to spin across the Great Basin and Desert Southwest this morning. with well-established southwest flow prevailing downstream across the Plains and into the Lower Missouri Vly. expect increasing cloud cover as upper trough shifts east and sfc front to our south begins to lift north with time. precip chances will again increase from south to the north during the late afternoon hrs with activity becoming more widespread heading into the evening and overnight hrs as main trough ejects east and takes on a negative tilt across the central High Plains.
406 PM CDT FRI APR 29 2016 MAIN FEATURE OF INTEREST THROUGH THE SHORT TERM PERIOD IS THE UPPER LEVEL LOW PRESSURE SYSTEM MOVING OUT ONTO THE PLAINS. AND LOW PRESSURE WELL TO THE SOUTH OVER NRN TX. THE LOW IS SHOWN TO HAVE MOVED INTO NWRN KS. SATURDAY NIGHT MODELS ARE CONSISTENT WITH THE UPPER LOW TRACKING ALONG THE NEB/KS STATE LINE WITH LIGHT RAIN SHOWERS OR DRIZZLE CONTINUING INTO THE OVERNIGHT PERIOD.
UPPER RIDGING EXTENDING FROM THE GULF OF MEXICO AND UP THE EASTERN SEA BOARD IS FORECAST THROUGH THE NEAR TERM PERIOD. MEAN LAYER 1000-500 MB RIDGE AXIS WILL MEANDER ACROSS CENTRAL FLORIDA SAT NIGHT THROUGH SUN THEN BEGIN TO SHIFT SOUTHWARD ACROSS S FL THROUGH MON AS THE NEXT SURFACE FRONT APPROACHES FROM THE GULF COAST REGION.
1236 PM CDT FRI APR 29 2016 MID LEVEL CLOUDS AND SPRINKLES HAVE BEEN NOTED AROUND THE MOBRIDGE AREA. THICKER CLOUDS AND COOLER TEMPS AT 925/850MB WILL PREVAIL ACROSS THE SOUTHERN CWA. MAIN FOCUS IN THE SHORT TERM IS THE LOW PRESSURE SYSTEM MOVING ACROSS THE CENTRAL PLAINS TONIGHT THROUGH SATURDAY EVENING.
413 PM CDT FRI APR 29 2016 LATEST SURFACE ANALYSIS SHOWED A DEEP 1000MB LOW OVER SOUTHWEST OKLAHOMA WITH A WARM FRONT EXTENDING EAST ALONG THE RED RIVER TO NORTH MISSISSIPPI. UPPER LEVEL TROUGH AXIS WILL CONTINUE TO ROTATE EAST OVER THE CENTRAL PLAINS TONIGHT AND BECOME MORE CLOSED OFF OVER CENTRAL PLAINS ON SATURDAY.
ONE CHALLENGE TO THE FORECAST IS THE LOCATION AND NORTHWARD MOVEMENT OF THE WARM FRONT THAT BEGINS MOVING OUT OF NORTH GEORGIA/ALABAMA SOMETIME EARLY SATURDAY.
353 PM EDT FRI APR 29 2016 MUCH OF THE LOW LEVEL CLOUD COVER HAS LIFTED TO A CUMULUS LAYER. THE CLOUD COVER HAS KEPT TEMPS ACROSS THE AREA FROM WARMING UP COMPARED TO AREAS ALONG THE OH RIVER WHERE TEMPS HAVE RISEN INTO THE LOWER 70S. THIS WILL PUSH A WARM FRONT NORTHEAST INTO THE AREA. INCREASED SOUTHERLY FLOW INTO THE AREA WILL ALLOW MORNING TEMPS TO RISE QUICKLY THROUGH THE MORNING HOURS TOMORROW AS SOME SHOWER ACTIVITY SPREADS NORTHEAST INTO THE AREA AHEAD OF THE WARM FRONT. SOME INCREASED INSTABILITY IS POSSIBLE AS THE WARM FRONT LIFTS NORTH OF THE AREA GETTING AT LEAST THE SOUTHERN PORTION ALONG THE OHIO RIVER IN THE WARM SECTOR.
1213 PM CDT FRI APR 29 2016 /18Z TAFS/ Skies are clearing from the west early this afternoon as a dryline and Pacific cold front push east through the area. Between late morning and early afternoon, skies will clear as a Pacific cold front/drlyine sweeps east through the area today. /issued 340 AM CDT FRI APR 29 2016/ (Today and Tonight) Upper low currently over the Four Corners region will move east across southern Colorado today and into Kansas by this evening. This will force the Pacific front/dryline east across our area today, with a cold front dropping south across the northern half of the CWA tonight. Highs today will be in the lower to middle 80s, with lows tonight in the lower and middle 50s.
149 PM PDT FRI APR 29 2016 CLEARING SKIES AND WARMER TEMPERATURES NEXT SEVERAL DAYS AS WEAK HIGH PRESSURE MOVES OVER THE REGION. HOWEVER, A WEAK SYSTEM WILL BRUSH THE AREA ON SATURDAY BRINGING AN INCREASE IN CHANCES FOR PRECIPITATION OVER THE HIGHER ELEVATIONS. SKIES ARE MAINLY CLEAR THIS AFTERNOON OVER THE FORECAST AREA OTHER THAN SOME CUMULUS OVER THE LOWER MOUNTAIN SLOPES AND SOME THIN CIRRUS STREAMING OVERHEAD. THIS IS THE NEXT SHORT WAVE TROUGH THAT IS PROGGED TO DIVE SOUTH ACROSS CALIFORNIA TONIGHT AND FORM A CLOSED LOW NEAR THE COLORADO RIVER BY SATURDAY AFTERNOON.
MVFR to VFR conditions will continue this afternoon ahead of a cold front forecast to move into the region late tonight and Saturday morning. a nearly stationary warm front extended eastward along/near the Red River with a cold front/dryline trailing to the southwest. North of the warm front. with additional thunderstorms near the upper low in Western Oklahoma and the Oklahoma/Texas Panhandles. the true warm front with 70 degree dewpoints looks to remain in the vicinity of the Red River. Depending on exactly where the true warm front sets up. will determine the higher potential for tornadic development.
Lows tomorrow will be in the low to mid 50s across the CWA and afternoon highs Saturday under mostly sunny skies will be in the mid to upper 70s north on Interstate 20 and low to mid 80s south of Interstate 20.
626 AM CDT WED MAY 18 2016 The upper flow is rather weak and over the course of the short term gradually evolves into a ridge aloft as a upper trof pushes into the Rockies.
614 AM CDT WED MAY 18 2016 High pressure is currently over eastern Minnesota.
Slow moving weak cold front will stall over s Ga today. Airmass is still very moist in the low/mid levels with 12z JAX pwat at 1.
In wake of a robust mid and upper level short wave trough over South Florida moving eastward into the Western Atlantic Ocean, large scale subsidence will allow some drier air to filter into the low and mid levels.
1136 AM EDT WED MAY 18 2016 Hydro High pressure will remain situated over the Great Lakes through the upcoming weekend.
957 AM EDT WED MAY 18 2016 Weak low pressure tracks northeast off the coast through tonight while high pressure remains over the Great Lakes states.
High pressure to the east of Florida will keep generally southwest winds over the coastal waters today, with wind speeds expected to remain around 15 knots or less through the rest of the week.
1032 AM CDT WED MAY 18 2016 Quite a contrast this morning across Southeast Texas with 10 AM temperatures in the low to mid 60s up north (behind the frontal boundary) and upper 70s to lower 80 at the coast (along/ahead of the front). Much of Southeast Texas still looks on track for better rain chances tomorrow afternoon and on into tomorrow night as the Southern Arizona area mid/upper level low lifts out and moves eastward.
714 AM CDT WED MAY 18 2016 a wk cold front has movd south of i-20, with north winds 5 to 10 kts north of boundary. Looking closer to home, a cold front was noted from a Monroe to a Shreveport to a Nacogdoches line, thus resulting in a wind shift to the north and intermittent light isolated showers. The cold front will push south of the cwa later this morning and the slight frontogenetic forcing coupled with adequate low level moisture may result in additional intermittent isolated showers, with perhaps a few rumbles of thunder especially if skies scatter out a bit this aftn and destabilization occurs.
high pressure overhead with light winds and dry air. High pressure has barely moved over the last 24 hours, presently over nw WI. Ridging extending eastward is contributing to the dry low-level airmass in place across northern MI. The high will drift slowly eastward, and will be dead overhead this evening. A 500mb trof axis remains over lower MI, but is deteriorating with time. Some patchy mid-clouds could still develop this morning in eastern upper/ne lower MI, thanks to the lingering upper trof. Max temps mainly low/mid 60s, cooler on the beaches. Mins will be commonly in the low to mid 30s, cooler in the usual interior cold spots. Medium Impact Weather: elevated fire danger coming up as the high temperatures reach 75F and the minimum RH will fall below 25%.
939 AM PDT WED MAY 18 2016 A high pressure ridge will make Wednesday and Thursday the warmest days of the week with less inland cloud coverage.
Cold front appears to have drifted south into the forecast area with northerly winds noted across all northern counties and a mainly east to northeast wind elsewhere. Upper trough will slowly nudge eastward tonight. With confidence on the lower end with respect to location of heavy rain, it was decided to forego a Flash Flood Watch at this time.
High pressure will build in from the west today through tonight then shift east Thursday ahead of the next Pacific storm. This next upper low will stall over the Pacific Northwest through the end of the week with a strong southerly flow over the Great Basin. The upper low that has impacted much of the southwestern CONUS the last couple days will be exiting Arizona into New Mexico over the next 24 hours, with building high pressure over Utah and southwest Wyoming. This building high pressure will lead to a drying and warming trend through tomorrow.
Limited thunder chances return tonight across southeast Oklahoma as the western upper trough begins to move east.
/issued 714 AM CDT WED MAY 18 2016/ a wk cold front has moved south of i-20, with north winds 5 to 10 kts north of boundary. Looking closer to home, a cold front was noted from a Monroe to a Shreveport to a Nacogdoches line, thus resulting in a wind shift to the north and intermittent light isolated showers. The cold front will push south of the cwa later this morning and the slight frontogenetic forcing coupled with adequate low level moisture may result in additional intermittent isolated showers, with perhaps a few rumbles of thunder especially if skies scatter out a bit this aftn and destabilization occurs.
A cold front extends just south of nashville to near the muscle shoals area. Ahead of the front, a weak pre-frontal trough axis extends from near winchester, TN southwest through Moores Mill, AL and into the Cullman, AL areas. KTW (issued 629 AM CDT WED MAY 18 2016) For 12Z TAFs: IFR cigs will impact the KMSL and KHSV terminals through at least 15Z and then lift to MVFR through 18z, behind a surface cold front.
/issued 227 AM CDT WED MAY 18 2016/ A cold front currently stretches from near Knoxville, Tennessee to Greenwood, Mississippi. Highs will range from the upper 60s to the lower 70s across much of the Mid- South. The cold front that is currently moving through the Mid-South will push southward to the Gulf Coast today and stall out. The front will begin lifting northward as a warm front on Thursday.
KTW (issued 828 AM CDT WED MAY 18 2016) (issued 629 AM CDT WED MAY 18 2016) For 12Z TAFs: IFR cigs will impact the KMSL and KHSV terminals through at least 15Z and then lift to MVFR through 18z, behind a surface cold front.
922 AM EDT WED MAY 18 2016 Cool high pressure will gradually build in from the west through the remainder of the week.
638 AM CDT WED MAY 18 2016 Ifr conditions continue at this hour in the wake of a cold front that moved through last evening.
Upper level ridge over the region today will provide for the last day of above normal temperatures and mostly clear skies of the week. showers may develop late this afternoon over the higher terrain of Baker, Adams and Valley Counties ahead of an approaching cold front. The axis of an upper level transitional ridge will be passing over the area today will keep temperatures warm. The next upper low will be moving swiftly south along the coast, and ahead of it some isolated showers and thunderstorms are expected in the Northern most portions of Valley, Adams, and Baker counties. But late Wednesday into very early Thursday, models are in good agreement of a cold front sweeping through the area, and be through the Magic Valley by mid day Thursday.
High pressure will build in from the west today through tonight then shift east Thursday ahead of the next Pacific storm. This next upper low will stall over the Pacific Northwest through the end of the week with a strong southerly flow over the Great Basin.
An inverted trough/boundary will move across the area today. Chattanooga Airport, TN 79 56 79 60 / 30 20 20 60 Knoxville McGhee Tyson Airport, TN 76 56 76 58 / 40 30 10 40 Oak Ridge, TN 74 55 76 57 / 50 20 10 50 Tri Cities Airport, TN 72 52 73 53 / 70 50 20 20.
1105 AM CDT WED MAY 18 2016 Low clouds cover nearly the entire Mid-South behind the cold front that moved through last night. /issued 227 AM CDT WED MAY 18 2016/ A cold front currently stretches from near Knoxville, Tennessee to Greenwood, Mississippi. Highs will range from the upper 60s to the lower 70s across much of the Mid- South. The cold front that is currently moving through the Mid-South will push southward to the Gulf Coast today and stall out. The front will begin lifting northward as a warm front on Thursday.
53 Ifr conditions continue at this hour in the wake of a cold front that moved through last evening.
927 AM EDT WED MAY 18 2016 A cold front will continue to slide slowly south of northeast Pennsylvania this afternoon with a few light showers and sprinkles ending. An upper level low pressure system may bring a few showers to the area Thursday. Best chance of shwrs thu will be over the higher terrain of the cats which will also be closer to the coldest air aloft.
High pressure is currently over eastern Minnesota.
1041 AM EDT WED MAY 18 2016 Low pressure and rain showers will move east today. High pressure centered over the Great Lakes will bring dry conditions tonight through Thursday.
612 AM CDT WED MAY 18 2016 High pressure over the region has led to mostly clear skies and light winds overnight which have allowed temperatures to drop into the thirties for most areas as of 08Z. The high will move south and east today allowing the surface wind to turn southerly for most areas. Some of the high res CAMS support a low pop and we kept the mention in that area. It will be warmer today with highs in the mid sixties to lower seventies, cooler close to Lake Superior. Similar conditions to today will occur Thursday across the Northland with highs in the upper sixties to lower seventies with it again being cooler close to Lake Superior.
719 AM EDT WED MAY 18 2016 Aviation High pressure will remain situated over the Great Lakes through the upcoming weekend.
908 AM EDT WED MAY 18 2016 Low pressure will pass well to the south tonight.
121 AM EST Sat Mar 11 2017 High pressure will build in from the northwest through Saturday. Weak low pressure will move off of the coast to the south Saturday night and Sunday.
1159 PM CST Fri Mar 10 2017 The evening sfc analysis depicts the cold front still drifting slowly SW into Ncntrl and SE TX late this evening, extending from just S of DFW, SE to near LFK, to near a LCH/BTR line. Weak overrunning has commenced this evening atop this cooler and shallow air mass, such that sct -SHRA have redeveloped over the W and SW sections of E TX.
327 AM CST Sat Mar 11 2017 Closed low over the Northeast CONUS with slight ridging into the Western CONUS. Enhanced returns over Northern Lincoln county with areas of IP falling and freezing as it comes in contact with roads. Upslope flow with warmer air aloft being advected over colder surface. Most of the highs will be realized late. Lows in the low 20s to around 30.
Strong high pressure remains entrenched over Manitoba into eastern ND.
307 AM CST Sat Mar 11 2017 An upper level trough was located across the northern high plains early this morning and will dig southeast across SD and NE into western IA and eastern KS by 00Z SAT. The 6Z NAM model and the higher resolution WRF models show the stronger mid level frontogenesis developing ahead of the upper level trough across western NE then shifting southeast across north central KS into east central KS by this afternoon. It may take a while to saturate the low-levels before snow reaches the surface this morning across the northern counties of the CWA. Tonight, the snow mixed with rain will shift southeast of the CWA by 00Z SUN as the upper level trough digs southeast into the mid and lower MS river valley. Overnight lows will drop int the lower 20s.