Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE FIRST HALF OF THE WEEK CONTINUES TO FEATURE AN UPPER RIDGE OVER THE ROCKY MOUNTAIN REGION WITH MODERATE NORTHWESTERLY FLOW ALOFT OVER NORTHERN COLORADO.
WAA clouds are beginning to develop on the back side of a high pressure ridge across central/western Iowa. High pressure moving from the central Plains to the southeastern U. the next low pressure system will be approaching from the west.
Lowered the lows for metro Louisville a few degrees as well as we have already dropped to 15 degrees.
TONIGHT THROUGH MONDAY NIGHT HIGH PRESSURE BROUGHT CLEAR SKIES AND GUSTY WINDS TO THE STATE TODAY. WITH MANY LOCATIONS NORTH OF LITTLE ROCK STILL BELOW FREEZING. WHICH WILL HELP TO KEEP READINGS WARMER MONDAY NIGHT.
/ISSUED 429 PM CST SUN JAN 10 2016/ LINGERING CLOUD COVER TODAY HAS KEPT TEMPS IN THE LOWER 30S.
A RATHER DISORGANIZED AND MOISTURE LIMITED MID AND UPPER LEVEL LOW PRESSURE TROUGH WILL MOVE INTO AND ACROSS THE SW HALF OF NM OVERNIGHT TONIGHT.
CHATTANOOGA AIRPORT, TN 20 43 27 48 / 0 0 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 18 39 26 43 / 0 0 0 10 OAK RIDGE, TN 19 38 26 42 / 0 0 0 20 TRI CITIES AIRPORT, TN 18 37 22 38 / 10 0 10 40.
SO THE LOWEST WIND CHILLS WL BE IN THAT AREA. BUT WIND CHILLS WILL STILL BE THE LOWEST OF THE SEASON TO OCCUR ON A SCHOOL DAY AND THIS WINTER HAS BEEN MUCH WARMER THAN NORMAL SO FAR. MONDAY NIGHT THROUGH SUNDAY OVERALL BROAD COLD UPPER TROUGH WILL REMAIN OVER THE MID SECTION OF THE COUNTRY THROUGH MID WEEK.
529 PM CST SUN JAN 10 2016 Cold high pressure overhead will be pushed to the south overnight. While the low levels will be starved of moisture there should be a fair amount of mid level cloud cover generated that will sweep through the CWA through the day.
BUT DISREGARD THE LOWER CIGS AND VSBY LATE TONIGHT. THIS WILL ALLOW FOR OVERNIGHT LOWS TO BE A BIT WARMER BUT STILL COLD IN THE MID 20S ON AVERAGE. A WEAK FRONT/SURFACE TROF WILL PUSH WINDS TO THE NORTH/NORTHWEST TOMORROW AFTERNOON AS AN UPPER LEVEL TROF MOVES IN OVERHEAD. THIS MAY KEEP TEMPS ACROSS THE NORTH A BIT COOLER THAN THE REST OF THE FA. SOME FLURRIES MAY BE POSSIBLE ACROSS THE NORTHERN PERMIAN BASIN/EXTREME SOUTHERN SOUTH PLAINS AND ROLLING PLAINS BETWEEN MIDNIGHT AND 6AM AS THE TROF BEGINS TO MOVE INTO THE REGION.
20Z SURFACE ANALYSIS CENTERS A 1028 MB RIDGE OF ARCTIC HIGH PRESSURE OVER KANSAS AND OKLAHOMA. AN ARCTIC RIDGE OF HIGH PRESSURE WILL BRING CLEAR SKIES TO THE MID SOUTH TONIGHT ALONG WITH VERY COLD TEMPERATURES IN THE TEENS TO LOWER 20S ACROSS THE AREA.
1016 PM EST SUN JAN 10 2016 AN AREA OF HIGH PRESSURE WILL PASS TO THE SOUTH EARLY THIS WEEK.
/ISSUED 355 PM CST SUN JAN 10 2016/ HIGH PRESSURE CONTINUES TO BUILD IN ACROSS THE REGION THIS AFTERNOON. TEMPERATURES IN SOME AREAS TODAY WERE 2 TO 3 DEGREES WARMER THAN FORECASTED. ONLY MANAGED TO GET IN THE LOWER TO MID 40S ACROSS REGION. EXPECT A FAIRLY BENIGN FORECAST WITH NEAR FREEZING LOW TEMPERATURES AND HIGHS IN THE UPPER 40S TO MID 50S EACH DAY.
TT /ISSUED 206 PM CST SUN JAN 10 2016/ STRONG COLD ADVECTION HAS BEEN ONGOING THROUGH THE DAY BEHIND A COLD FRONT THAT IS NOW WELL TO THE SE OF THE AREA. TEMPS HAVE GENERALLY BEEN IN THE LOWER TO MID 30S AND HAVE WARMED A DEG OR TWO IN THE LAST HOUR THANKS TO THE CLOUDS FINALLY CLEARING OUT FROM WEST TO EAST.
Canadian high pressure will sink south of the region tonight.
/issued 332 PM CST SUN JAN 10 2016/ (Tonight and Monday) A potent upper-level trough is moving east across northern Mexico this afternoon per water vapor imagery. The thermal profile will be above freezing overnight, but forecast wet-bulb temperatures suggest a saturated, sub-freezing column is likely by sunrise.
HIGH PRESSURE AND VALLEY INVERSIONS WILL THEN RETURN AND PERSIST THROUGH AT LEAST MID WEEK.
THE LOW LEVELS WILL REMAIN DRY AND TEMPERATURES WILL STILL FALL RAPIDLY AFTER SUNSET. OVERNIGHT LOWS MAY BE A BIT WARMER THAN LAST NIGHT DUE TO THE CLOUD COVER.
954 PM EST SUN JAN 10 2016 COLD FRONT HAS MOVED WELL SOUTH AND EAST OF THE AREA WITH HIGH PRESSURE BUILDING IN FROM THE NORTHWEST BRINGING COOLER DRIER AIR INTO THE REGION.
NORTHWEST CYCLONIC FLOW WILL BE IN PLACE MONDAY NIGHT ON THE EAST SIDE OF A WESTERN RIDGE AXIS OVER THE GREAT BASIN. NUMERICAL MODELS STILL INDICATE THAT THERE COULD BE ENOUGH LIFT ASSOCIATED WITH A COLD FRONT PASSAGE TO GIVE US SOME FLURRIES CENTRAL/NORTHEAST.
We should get some decent melting done on Monday with highs ranging from the upper 30s across central Missouri to the lower 40s across extreme southern Missouri and along the I-49 corridor.
A WARM FRONT WILL PUSH TEMPERATURES BACK ABOVE 0C FOR MOST LOCATIONS ON MONDAY. HIGHS WILL RANGE FROM THE LOWER 40S SOUTH OF I80. TO NEAR FREEZING ACROSS THE FAR NORTH.
624 PM EST SUN JAN 10 2016 AN AREA OF HIGH PRESSURE WILL PASS TO THE SOUTH EARLY THIS WEEK.
WINDS WILL BE LIGHTER ON MONDAY AS HIGH PRESSURE MOVES ACROSS SOUTHERN WISCONSINMONDAY MORNING.
533 PM CST SUN JAN 10 2016 FOR 00Z TAFS /ISSUED 206 PM CST SUN JAN 10 2016/ STRONG COLD ADVECTION HAS BEEN ONGOING THROUGH THE DAY BEHIND A COLD FRONT THAT IS NOW WELL TO THE SE OF THE AREA. TEMPS HAVE GENERALLY BEEN IN THE LOWER TO MID 30S AND HAVE WARMED A DEG OR TWO IN THE LAST HOUR THANKS TO THE CLOUDS FINALLY CLEARING OUT FROM WEST TO EAST.
THESE CONDITIONS PERSIST THROUGH AT LEAST 09Z WHEN LOWER CLOUDS AND MVFR CEILINGS DEVELOP AS A COASTAL TROUGH BEGINS TO DEVELOP WITH THE APPROACH OF AN UPPER LEVEL DISTURBANCE. LATEST MODEL SUITE SUGGEST A GRADUAL LOWER OF CEILINGS THROUGH THE DAY WITH THE HIGH RESOLUTION MODELS INDICATING LOWER PROBABILITIES OF IFR WITH HIGH PROBS OF MVFR. CONFIDENCE REMAINS MODERATE FOR THE LOWER IFR CONDITIONS. COOL AND DRY SURFACE RIDGING WILL MAINTAIN A PRETTY QUIET EVENING ACROSS THE RGV.
A WEAK LOW PRESSURE WILL BRING SOME LIGHT RAIN TO MUCH OF WESTERN WASHINGTON ON MONDAY.
WHERE WILL FORECAST MVFR CIGS (TEMPO VFR CIGS) AOA 19Z AS COASTAL TROUGH DEVELOPS AND LOW LEVEL MOISTURE INCREASES. A DEVELOPING COASTAL TROUGH ACROSS THE SOUTHERN TEXAS COAST AND HIGH PRESSURE TO THE NORTH WILL KEEP THE ONGOING NORTH-NORTHWEST FLOW THROUGH THE PERIOD. TEMPERATURES THROUGH MUCH OF THE NIGHT SHOULD REMAIN ABOVE FREEZING. THE BIGGEST CAVEAT TO ANY TEMPERATURES BEING ABLE TO DIP TO FREEZING WILL BE THE AMOUNT OF HIGH CLOUDS THAT WILL STREAM OUT OF THE WEST. STILL THINK THAT WITH CONDITIONS REMAINING QUITE DRY AND DEWPOINTS CURRENTLY HANGING BELOW FREEZING. TEMPS IN THE LOW 30S WILL REMAIN POSSIBLE. AS THE COASTAL TROUGH FURTHER DEVELOPS THROUGH MONDAY. THIS COASTAL TROUGH WILL LEAD TO INCREASING MOISTURE AND CLOUD COVERAGE.
HAVE UPDATED TEMPERATURES DUE TO THE COOLER AIR STRUGGLING TO MOVE DOWN THE PENINSULA THIS EVENING. A WEAK FRONT IS BLEEDING ACROSS THE KEYS WITH AN AREA OF HIGH PRESSURE BUILDING ACROSS THE SOUTHEASTERN STATES. THE AREA OF HIGH PRESSURE IS RESULTING IN INCREASING WINDS SPREADING OVER THE KEYS AT THIS HOUR.
THEN DRY AND WARMER TO START THE NEW WEEK. THE EASTERN PACIFIC RIDGE WILL THEN PHASE IN FROM THE WEST AND DOMINATE OUR WEATHER THE FIRST HALF OF THE WEEK. ALL THIS ASSOCIATED WITH AN UPSTREAM UPPER LEVEL TROF THAT WILL PASS THRU THE AREA TONIGHT. CAN'T RULE OUT A FEW SPRINKLES AT THE LOWER ELEVATIONS FROM TUCSON NE.
CHANGE IN THE WEATHER PATTERN THE NEXT FEW DAYS AS A WEAKENING RIDGE MIGRATES FROM WASHINGTON INTO WESTERN MONTANA WITH A BACK DOOR COLD FRONT AND ACTIVE NORTHWEST FLOW OVER THE EASTERN THIRD OF THE STATE. MOST OF THE AREA WILL CLIMB ABOVE FREEZING AGAIN EXCEPT IN EASTERN PARTS OF SOUTHEAST MONTANA WHERE 20S WILL BE MORE COMMON.
317 PM PST SUN JAN 10 2016 A WEAK SYSTEM WILL TRACK TO THE NORTH OF THE REGION ON MONDAY WITH WEAK RIDGING TAKING PLACE OVER THE REGION.
WARMEST AREAS ARE IN THE WESTERN HALF OF THE FORECAST AREA AS THIS PORTION OF THE REGION DID START OFF THE MORNING ON THE WEST SIDE OF THE RIDGE AXIS. AMPLIFIED RIDGING OVER THE WESTERN PORTION OF THE COUNTRY FROM THE SURFACE THRU 500 MB WILL KEEP THE CWA UNDER MAINLY A WNW FLOW. THIS IS THE RESULT OF A RIDGE OF HIGH PRESSURE.
BROAD UPPER CIRCULATION OVER HUDSONS BAY WILL BE THE DOMINANT WEATHER FEATURE DURING THE PERIOD AS SERIES OF SHORT WAVE TROUGHS DUMBELL AROUND OVER EASTERN CANADA WITHIN THE CIRCULATION. THIS RESULTS IN ALTERNATING SERIES OF SHORT WAVE TROUGHS AND WEAK CLIPPERS FOLLOWED BY ARCTIC HIGH PRESSURE MOVING FROM CENTRAL CANADA INTO THE PLAINS AND UPPER MIDWEST DURING THE WEEK AND INTO THE UPCOMING WEEKEND.
EXPECT DRY AND COLD CONDITIONS OVERNIGHT AS HIGH PRESSURE CONTINUES BUILDING INTO THE REGION. LOWS TONIGHT WILL FALL INTO THE LOW TO MID 20S FOR MOST LOCATIONS. /ISSUED 429 PM CST SUN JAN 10 2016/ DRY NORTHWEST FLOW ALOFT AND COLD HIGH PRESSURE WILL BE THE GENERAL WEATHER PATTERN FOR THE ARKLAMISS AS WE GO THROUGH EARLY WEEK. CONDITIONS MONDAY SHOULD BE LESS UNCOMFORTABLE AS WINDS WILL BE LIGHTER AND TEMPERATURES A BIT WARMER THAN TODAY.
ISSUED 245 PM EST SUN JAN 10 2016 STRONG LOW PRESSURE SYSTEM WHICH BROUGHT 2 TO 3 INCHES OF SNOWFALL TO MOST OF SOUTHEAST MICHIGAN AND WIND GUSTS OF 40 TO 45 MPH TODAY IS TRACKING OFF INTO EASTERN CANADA EARLY THIS EVENING. WINDS STAYING UP AND AIRMASS MODIFICATION OFF LAKE MICHIGAN EXPECTED TO HOLD MINS IN THE LOWER TEENS.
AN UPPER LEVEL RIDGE WILL BRING QUIET WEATHER TO NORTHERN NEVADA.
Still, winds will be fairly light and skies will remain mostly clear allowing for temperatures to drop down into the teens(F) for lows across west central Kansas to the lower 20s(F) in south central Kansas. The prevailing westerly downslope flow will continue into Monday helping to erode the colder air mass across the high plains.
950 PM CST SUN JAN 10 2016 Added patchy freezing fog to the forecast for much of SW KS through 6 AM. Still, winds will be fairly light and skies will remain mostly clear allowing for temperatures to drop down into the teens(F) for lows across west central Kansas to the lower 20s(F) in south central Kansas. The prevailing westerly downslope flow will continue into Monday helping to erode the colder air mass across the high plains.
600 PM CST SUN JAN 10 2016 High pressure moving from the central Plains to the southeastern U. the next low pressure system will be approaching from the west.
SURFACE ARCTIC HIGH PRESSURE CONTINUES TO SETTLE OVER THE MID SOUTH THIS EVENING. TEMPERATURES HAVE ALREADY DROPPED INTO THE LOWER TEENS IN PORTIONS OF NORTHWEST TENNESSEE IN AREAS THAT STILL HAVE SNOW COVER. TEMPERATURES HAVE DROPPED INTO THE LOWER AND MIDDLE 20S TOWARDS MEMPHIS. THE LATEST FORECAST AND GRIDS HAVE BEEN UPDATED AND SENT TO REFLECT THE LOWERING OF FORECAST OVERNIGHT LOW TEMPERATURES. 20Z SURFACE ANALYSIS CENTERS A 1028 MB RIDGE OF ARCTIC HIGH PRESSURE OVER KANSAS AND OKLAHOMA. AN ARCTIC RIDGE OF HIGH PRESSURE WILL BRING CLEAR SKIES TO THE MID SOUTH TONIGHT ALONG WITH VERY COLD TEMPERATURES IN THE TEENS TO LOWER 20S ACROSS THE AREA.
801 PM CST SUN JAN 10 2016 LOWERED MIN TEMPS A FEW DEGREES AS THE HIGH PRESSURE IS FORECAST TO DRIFT OVERHEAD BY MORNING. SKIES WILL BE CLEAR WITH THE LOWS DROPPING INTO THE -10 TO -20 LEVEL.
508 PM EST SUN JAN 10 2016 THE STRONG LOW PRESSURE SYSTEM THAT BROUGHT THE HEAVY RAINS. AS THE COLDER AIR MOVES OVER THE RELATIVELY WARMER WATERS OF LAKE ONTARIO LAKE EFFECT SNOW WILL DEVELOP TONIGHT AND IMPACT THE WESTERN ADIRONDACKS INTO MONDAY NIGHT.
Some high clouds may begin to spread into Southeast Oklahoma late tonight in association with broad upper trough moving over the desert southwest.
/ISSUED 244 PM CST SUN JAN 10 2016/ POSITIVELY TILTED TROUGH WILL PASS OVER THE SOUTHERN PLAINS TONIGHT AND FIRST PART OF MONDAY.
429 PM CST SUN JAN 10 2016 DRY NORTHWEST FLOW ALOFT AND COLD HIGH PRESSURE WILL BE THE GENERAL WEATHER PATTERN FOR THE ARKLAMISS AS WE GO THROUGH EARLY WEEK. CONDITIONS MONDAY SHOULD BE LESS UNCOMFORTABLE AS WINDS WILL BE LIGHTER AND TEMPERATURES A BIT WARMER THAN TODAY.
429 PM CST SUN JAN 10 2016 LINGERING CLOUD COVER TODAY HAS KEPT TEMPS IN THE LOWER 30S.
644 PM EST SUN JAN 10 2016 HIGH PRESSURE OVER THE CENTRAL CONUS WILL GRADUALLY BUILD EAST INTO THE REGION THROUGH MONDAY.
HIGH PRESSURE NOW OFF TO THE SOUTHEAST OF THE REGION.
722 AM EDT SUN OCT 18 2015 VLIFR CONDITIONS CURRENTLY AT KTRI WITH FREEZING FOG DEVELOPING OVER THE LAST FEW MINUTES.
A MOIST UNSETTLED FLOW WILL CONTINUE TO STREAM OVER THE FORECAST AREA THROUGH THE NEXT COUPLE OF DAYS AS THE LATEST PACIFIC LOW PRESSURE SYSTEM MOVES OVER THE WEST COAST THIS MORNING. THE MAIN TROUGH WILL STILL BE WELL TO OUR WEST. MOISTURE WILL BE QUITE PLENTIFUL AT THE LOWER LEVELS. SOME SNOW MAY ACCUMULATE OVER THE HIGHER PEAKS. THE WESTERN LOW PRESSURE TROUGH WILL MOVE INTO THE GREAT BASIN ON MONDAY. WESTERN TROUGH WILL REMAIN IN PLACE THROUGH THE END OF THE WEEK WITH SEVERAL WAVES OR PIECES OF ENERGY LIFTING ENE THROUGH THE CENTRAL ROCKIES.
629 AM CDT SUN OCT 18 2015 MAIN FORECAST CONCERN SHORT TERM WILL DEAL WITH TIMING AND STRENGTH OF SHORT WAVES COMING INTO THE PLAINS REGION IN ADVANCE OF UPPER LOW OVER ARIZONA MEXICAN BORDER. PERIOD STARTS OFF QUITE MILD WITH UPPER RIDGE AXIS LOCATED ACROSS THE PLAINS REGION. RIDGE SLOWLY WEAKENS WITH TIME AND FLATTENS BY LATE IN THE PERIOD AS NORTHERN STREAM TROUGH MOVES INTO THE NORTHERN PLAINS.
936 AM EDT SUN OCT 18 2015 A DEEP UPPER LEVEL TROUGH OVER EASTERN CANADA AND THE NORTHEAST STATES WILL BRING ONE MORE DAY OF WELL-BELOW NORMAL TEMPERATURES TO CENTRAL PA. WIDESPREAD NIGHTTIME SUBFREEZING CONDITIONS ARE EXPECTED TO END THE GROWING SEASON. THE ANOMALOUSLY DEEP UPPER TROUGH WILL CONTINUE TO IMPACT THE AREA TODAY. WILL BE DOWNWIND OF LAKE ERIE OVER THE HIGHER ELEVATIONS OF THE ALLEGHENY FOREST REGION. HIGH PRESSURE WILL MIGRATE EWD FROM THE LWR OH VALLEY LATER TODAY AND BE CENTERED OVER THE MD/WV PANHANDLE BY 12Z MONDAY. THAT SAID THERE IS SOME SPREAD IN KEY SYNOPTIC FEATURES OVER THE LOWER 48.
CHATTANOOGA AIRPORT, TN 62 39 66 41 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 58 35 63 39 / 0 0 0 0 OAK RIDGE, TN 59 37 63 39 / 0 0 0 0 TRI CITIES AIRPORT, TN 54 30 60 35 / 0 0 0 0.
HIGH PRESSURE ON THE SURFACE TO THE NORTHEAST OF THE AREA WILL PROVIDE DRIER AIR INTO THE AREA RESULTING IN DEW POINTS IN THE TWENTIES AND THIRTIES. THE LOW DEW POINTS WHEN PAIRED WITH THE SURFACE WINDS OF 8 TO 15 MPH WILL RESULT IN RELATIVE HUMIDITY VALUES INTO THE TEENS.
955 AM CDT SUN OCT 18 2015 LATEST WV LOOP SHOWS UPPER LOW MOVING ONTO THE NORTHERN CALIFORNIA COAST. UPPER LEVEL RIDGING REMAINS OVER WESTERN AND CENTRAL NORTH DAKOTA. WHILE A LEE SIDE TROUGH THROUGH EASTERN MONTANA PUSHES THROUGH WILLISTON AND DICKINSON BY SUNSET. MID LEVEL SUPPORT WAS VERY WEAK AND WITH A LACK OF LOW LEVEL MOISTURE THE TROUGH PASSAGE IS FORECAST TO BE DRY. A GUSTY SOUTHEAST WIND AHEAD OF THE TROUGH. THE DRY TROUGH PASSES THROUGH THE REST OF THE FORECAST AREA TONIGHT WITH PARTLY CLOUDY SKIES.
HIGH PRESSURE WILL BUILD INTO THE REGION TODAY AND HOLD IN PLACE OVER THE AREA THROUGH MID WEEK. LOTS OF SUNSHINE STILL EXPECTED TODAY WITH A ALTHOUGH NORTHEAST SECTIONS SHOULD SEE A FEW CLOUDS AS POCKETS OF VORTICITY ROTATE INTO THE MEAN MID LEVEL TROUGH BASE. -GIH PRECIPITABLE WATER VALUES REMAIN BELOW A HALF-INCH WITH AN 850MB THETA-E TROUGH AND OVERALL SUBSIDENCE PERSISTING IN THIS PERIOD THROUGH MONDAY NIGHT.
/ISSUED 512 AM CDT SUN OCT 18 2015/ AFTERNOON TEMPERATURES YESTERDAY COOLED FROM PREVIOUS DAYS HIGHS AS THE LATEST HIGH PRESSURE AREA BUILDS DOWN AND INTO THE REGION. LATEST GUIDANCE CONTINUES TO DEVELOP AN AREA OF LOW PRESSURE DOWN AROUND THE YUCATAN PENINSULA.
TEMPERATURES WILL STILL BE IN THE MID 60S TO LOWER 70S ACROSS THE LOWER ELEVATIONS.
/ISSUED 421 AM CDT SUN OCT 18 2015/ WARM AND BREEZY TO WINDY TODAY AND MONDAY AS LEE TROF DEEPENS FURTHER.
952 AM EDT SUN OCT 18 2015 A COLD FRONT IS MOVING THROUGH THE REGION EARLY THIS MORNING AND WILL BE SOUTH OF THE FORECAST AREA BY EARLY AFTERNOON. IN THE WAKE OF THIS FRONT A SPRAWLING RIDGE OF HIGH PRESSURE NOW OVER THE OHIO VALLEY WILL EXPAND EAST TOWARD THE MID ATLANTIC COAST THE REMAINDER OF TODAY WITH A TIGHTENING PRESSURE GRADIENT DEVELOPING OVER THE AREA. STRONG HIGH PRESSURE BUILDING IN NORTH OF THE WATERS AND LOWER PRESSURE OVER THE SOUTHERN GULF WILL SUPPORT AN INCREASING NORTHEAST WIND FLOW WITH BUILDING SEAS OVER THE GULF WATERS THE REMAINDER OF TODAY THROUGH MONDAY AS A TIGHT PRESSURE GRADIENT DEVELOPS.
A WEAK UPPER TROUGH WILL MOVE ACROSS THE PACIFIC NORTHWEST TODAY AND TONIGHT BRINGING LIGHT RAIN AT TIMES.
HIGH PRESSURE WILL BRING A WARMING TREND MONDAY THROUGH THE WEEK.
1206 PM EDT SUN OCT 18 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL REMAIN IN CONTROL THROUGH THE END OF THE WEEK. BELOW NORMAL TEMPERATURES WILL MODERATE FOR THE LATTER HALF OF THE WORK-WEEK AS AN UPPER- LEVEL RIDGE BUILDS OVER THE AREA. HIGH PRESSURE CENTERED OVER THE MISSISSIPPI VALLEY WILL BUILD SOUTHEAST INTO THE CAROLINAS. COLD AIR ADVECTION THIS AFTERNOON WILL RESULT IN MAXIMUM TEMPERATURES ABOUT 10 DEGREES COOLER THAN YESTERDAY. RIDGE AXIS ACROSS THE UPSTATE/PIEDMONT TONIGHT. DE-COUPLING MORE LIKELY NEAR RIDGE AXIS SO WILL POST FROST ADVISORY ACROSS THE NORTH MIDLANDS. DRY HIGH PRESSURE AIR MASS CONTINUES TO BUILD INTO THE REGION WITH A MAINLY CLEAR SKY. TEMPERATURES MONDAY MAY BE SLIGHTLY WARMER DUE TO AIR MASS MODIFICATION.
950 AM EDT SUN OCT 18 2015 CANADIAN HIGH PRESSURE HAS SETTLED INTO THE OHIO VALLEY PROVIDING COLDER THAN NORMAL TEMPERATURES AND ABUNDANT SUNSHINE. HIGH PRESSURE WILL SLIDE OFF TO THE EAST COAST MONDAY ALLOWING A SOUTHERLY FLOW TO DEVELOP AND A WARMING TREND.
Upper low presently over northwest California moves inland today and then east into Nevada on Monday. Upper low moves overhead the Sacramento Valley this afternoon. A potent vort seen in satellite imagery in the southwest quadrant of the low is forecast to swing onshore through the Bay Area, and coupled with daytime surface heating, bringing another upswing in shower and thunderstorm activity this afternoon. The upper level low which has been just off the coast is now moving inland, now centered over far northwestern California.
811 AM EDT SUN OCT 18 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL REMAIN IN CONTROL THROUGH THE END OF THE WEEK. BELOW NORMAL TEMPERATURES WILL MODERATE FOR THE LATTER HALF OF THE WORK-WEEK AS AN UPPER- LEVEL RIDGE BUILDS OVER THE AREA. HIGH PRESSURE CENTERED OVER THE MISSISSIPPI VALLEY WILL BUILD SOUTHEAST INTO THE CAROLINAS. COLD AIR ADVECTION TODAY WILL RESULT IN MAXIMUM TEMPERATURES ABOUT 10 DEGREES COOLER THAN YESTERDAY. RIDGE AXIS ACROSS THE UPSTATE/PIEDMONT TONIGHT. DE-COUPLING MORE LIKELY NEAR RIDGE AXIS SO WILL POST FROST ADVISORY ACROSS THE NORTH MIDLANDS. DRY HIGH PRESSURE AIR MASS CONTINUES TO BUILD INTO THE REGION WITH A MAINLY CLEAR SKY. TEMPERATURES MONDAY MAY BE SLIGHTLY WARMER DUE TO AIR MASS MODIFICATION.
740 AM EDT SUN OCT 18 2015 AVIATION/MARINE HIGH PRESSURE WILL BRING FAIR WEATHER TODAY AND MONDAY.
731 AM EDT SUN OCT 18 2015 A COLD FRONT NEAR LAKE OKEECHOBEE WILL CONTINUE TO MOVE SOUTHWARD THROUGH SOUTH FLORIDA TODAY. /ISSUED 336 AM EDT SUN OCT 18 2015/ SFC CDFNT ASSOCIATED WITH HIGH PRESSURE SURGING DOWN FL PENINSULA APPROACHING I-4 CORRIDOR EARLY THIS MORNING. NOT MUCH IN THE WAY OFF COOLER AIR EXPECTED WITH THIS FRONT.
Neoga reached 24F with Slidell and Bridgeport low of 25F. 1036 mb high pressure over southeast IL. southwest IN and western KY will drift east into the central Appalachians this evening while upper level ridge over the Great Plains edges eastward toward the MS river valley. Believe the mid clouds seen on satellite, out west in IA and MO will not make it into the CWA until late afternoon given the slowness of clouds and the eastward movement of the high pressure area. As the ridge moves just to the east, the winds begin to pick up a more southerly fetch, contributing to a moderation of temperatures.
741 AM EDT SUN OCT 18 2015 LATEST SURFACE ANALYSIS SHOWS A LARGE COLD DOME OF HIGH PRESSURE CENTERED OVER THE WESTERN EDGES OF THE OHIO VALLEY REGION AND CONTINUING TO PROVIDE A COOL/DRY NORTHERLY WIND FLOW ACROSS THE STATE. THE FROST THREAT THIS MORNING IS BEING HAMPERED INITIALLY BY NORTH WINDS OF 4-6 MPH AND THE HIGH CLOUDS. BUT THE HIGH CLOUDS ARE THINNING AND WINDS SHOULD CONTINUE TO DIMINISH. MODELS CONTINUE TO SHOW A COOL/DRY FORECAST FOR THE NEXT SEVERAL DAYS UNDER HIGH PRESSURE INFLUENCE. THE COLD AIR ADVECTION PATTERN WILL ALLOW HIGH AND LOW TEMPS TO RUN 5 TO 10 DEGREES COOLER THAN NORMAL THROUGH THE SHORT TERM AND BEYOND. 39 HIGH PRESSURE WILL CONTINUE TO CONTROL THE WEATHER ACROSS NORTH AND CENTRAL GEORGIA THE FIRST PART OF THIS WEEK RESULTING IN DRY/STABLE CONDITIONS.
AN AREA OF LOW PRESSURE IS CENTERED NEAR THE NORTHWEST CALIFORNIA COAST THIS MORNING WITH THE TROUGH EXTENDING SOUTH INTO CENTRAL CALIFORNIA.
OVERNIGHT LOWS HIT THE FREEZING MARK AT A FEW LOCATIONS INCLUDING THE DECATUR AND MERIDIANVILLE AIRPORT WHILE RUSSELLVILLE AIRPORT WAS THE COLDEST REPORT THAT CAME IN WITH A CHILLY 28 DEGREES! OTHERWISE. THE LOWS RANGED FROM THE MID 30S TO MID 40S ACROSS THE TN VALLEY. HIGHS WILL BE A DEGREE OR TWO COOLER THAN YESTERDAY WITH COLD AIR ADVECTION STILL IN PLACE. STILL AROUND 10 DEGREES BELOW NORMAL OUR HIGHS WILL WARM UP INTO THE LOW TO MID 60S.
1148 AM CDT SUN OCT 18 2015 A wide range of temperatures is in place across the region this morning, with 2 AM readings ranging from the low 50s over western Missouri and southeastern Kansas to the low to mid 30s over the eastern Ozarks. High pressure will remain centered over the Ohio Valley today, slowly pushing east toward the Mid Atlantic by tonight. Highs today over far western Missouri and southeastern Kansas should warm to around 70, with cooler readings in the low to mid 60s further east. Much warmer conditions are expected by Monday, with highs well into the 70s. Conditions may begin to approach Red Flag conditions over the far northwestern portions of the forecast area Monday afternoon, especially if temperatures end up being a bit warmer than currently expected.
MODELS CONTINUE TO THE SHOW THE RIDGE SHIFTING EAST AND SOUTHERLY FLOW INCREASING OVER THE NEXT 24 HOURS. MOISTURE RETURNS ALONG WITH WARMER AIR.
1206 PM EDT SUN OCT 18 2015 A RIDGE OF HIGH PRESSURE ACROSS THE OHIO VALLEY WILL BEGIN TO SHIFT EASTWARD TONIGHT. SOUTH WINDS WILL INCREASE AND BECOME GUSTY ON MONDAY AS THIS HIGH MOVES TO THE EAST. ALLOWING WARMER AIR TO MOVE INTO THE REGION.
WV Imagery indicates a weak upper level ridge of high pressure transitioning eastward across the Central Plains. Meanwhile, an upper level trough of low pressure is pushing ashore off the Pacific into the Pacific Northwest and northern California. Near the surface, a lee side trough of low pressure is slowly strengthening across extreme eastern Colorado. Despite the upper ridge beginning to break down across the Central Plains on Monday, the 850 mb temperatures across the high plains increases by Monday afternoon. Temperatures along and ahead of the eastern Colorado trough should exceed 80 degrees Monday afternoon.
HIGH PRESSURE AND A VERY DRY ATMOSPHERE WILL LIMIT CLOUDS TO NO MORE THAN SOME CIRRUS TODAY. /ISSUED 512 AM CDT SUN OCT 18 2015/ AFTERNOON TEMPERATURES YESTERDAY COOLED FROM PREVIOUS DAYS HIGHS AS THE LATEST HIGH PRESSURE AREA BUILDS DOWN AND INTO THE REGION. LATEST GUIDANCE CONTINUES TO DEVELOP AN AREA OF LOW PRESSURE DOWN AROUND THE YUCATAN PENINSULA.
MOIST SOUTHWEST FLOW ALOFT AHEAD OF A LOW PRESSURE TROF OVER CALIFORNIA WILL KEEP MID-HIGH CLOUDS ACROSS THE REGION.
Forecast remains on track today with low level ridging over the entire eastern half of the CONUS that is centered over the KY-IN border. Low level flow today will be from the northeast and may be gusty at times this afternoon thanks to a large pressure gradient in place and being on the southeastern edge of the ridging. Upper level ridging is moving in from the west, shifting westerly flow aloft to northwesterly, which will push out the upper level cloudiness we're seeing over our Florida zones. Highs today will be in the low to mid 70s.
1200 PM CDT SUN OCT 18 2015 THE UPPER LEVEL TROUGH THAT FUNNELED THE NOVEMBER-ISH TYPE AIR ACROSS THE REGION FOR THE LAST COUPLE DAYS IS MAKING ITS WAY EAST. THE UPPER LEVEL PATTERN WILL SHIFT TO A RIDGING/ZONAL FLOW. THE SURFACE FLOW TURNS SOUTHERLY WHILE INCREASING HEIGHTS A LOFT BUILD IN WITH THE RIDGING. WITH HIGHS IN THE LOW 70S FOR MANY.