Aikyam-Lab/Synoptic-Bench huggingface dataset:
A REINFORCEMENT OF COOLER AND DRIER AIR HAS SPILLED S BEHIND A COLD FROPA WHICH HAS ENTERED FAR SE TX INTO SRN LA THIS MORNING. SFC RIDGING OVER CNTRL OK/N TX THIS AFTERNOON WILL SHIFT SE INTO THE REGION THIS EVENING. TO RIGHT AT 60 AT PEASON RIDGE AND KESF NEAR ALEXANDRIA. THESE TEMPS ARE WARMER THAN YESTERDAY DUE TO THE WIND. LOTS OF PACIFIC MOISTURE STREAMING INLAND WITH THE UPPER LOW OVER THE SW U.
A HIGH PRESSURE RIDGE DOMINATES THE PATTERN THROUGH SATURDAY MORNING. THIS DISTURBANCE WILL SWING A COLD FRONT ACROSS THE FORECAST AREA LATE SATURDAY MORNING INTO EARLY AFTERNOON. LEESIDE TROFFING AND GUSTY DOWNSLOPE WINDS BEGINNING FRIDAY NIGHT AND CONTINUING THROUGH SATURDAY MORNING. AHEAD OF THE COLD FRONT.
Cooler high temperatures can be expected today compared to yesterday with the coldest temperatures across northeast MO and west central IL where the most cloud cover is forecast along with the strongest low level cold air advection this afternoon and lowest 850 mb temperatures. Should see temperatures start to get below freezing between 07-08Z from north to south across the area.
Quiet and dry conditions will persist across western Kansas through Friday night as short range models indicate a weak upper level ridge of high pressure moving eastward out of the Central and Southern Rockies into the Western High Plains during the period. A weak flow aloft and much drier air in the lower/mid levels will void any precip chances across western Kansas entering the early part of the weekend. This will begin to draw warmer air into the state raising H85 temperatures up around 10C across central Kansas to a little above 15C closer to the Colorado border. Drier conditions are likely to continue Saturday as medium range models indicate weak upper level ridging moving slowly east out of the Central and Southern Rockies into the Western High Plains.
Upper ridging will give way to a weakening UA trough across the area over the next 12 hours. The best chances for storms appear to be across the higher terrain of W TX into SE NM where where large- scale ascent and steep mid-level lapse rates could lead to some large hail. Storms move out by Saturday afternoon and temperatures begin to rebound amid subsidence and increasing mid-level ridging.
MOISTURE POOLING WITHIN THE TROF IS FAR TOO SPARSE TO BRING ANYTHING MORE THAN A SCT LOW/MID LVL CLOUD DECK. LOW PRES TROF SPANNING THE ERN SEABOARD WILL GENERATE A GENTLE TO MODERATE W/NW BREEZE OVER THE LCL ATLC THRU SUNSET. PGRAD ALONG THE TREASURE COAST WILL WEAKEN THRU THE DAY AS THE STORM SYSTEM DRIVING THE TROF LIFTS INTO THE CANADIAN MARITIMES.
728 AM EDT FRI APR 8 2016 MOST LOCATIONS HAVE REACHED THE LOW TO MID 30S WITH A SCATTERED CLOUD DECK IN PLACE. BUT SOME SPOTS COULD REACH THE FREEZING MARK BY DAWN. DRY WEATHER IS EXPECTED THROUGH THE MORNING HOURS TODAY BEFORE A COLD FRONT APPROACHES THE REGION. THE RAIN SHOULD EXIT THE AREA BY MIDNIGHT WITH SOME LINGERING SHOWERS POSSIBLE IN THE HIGH TERRAIN INTO SATURDAY MORNING. WITH A LIGHT COATING POSSIBLE IN THE HIGHEST TERRAIN ALONG THE VIRGINIA BORDER. SKIES WILL GRADUALLY CLEAR ON SATURDAY AS HIGH PRESSURE BUILDS INTO THE AREA. WITH THE HIGH PRESSURE CENTERED OVERHEAD SATURDAY NIGHT.
THESE CLOUDS ASSOCIATED WITH THE UPPER LOW OVER SOUTHERN CALIFORNIA. A NEGATIVELY TILTED UPPER LEVEL RIDGE OVER COLORADO. THIS WAVE IS APART OF A MUCH LARGER LOW PRESSURE SYSTEM ABOUT TO MOVE ONSHORE OVER SOUTHERN CALIFORNIA. WARM TEMPS AT THAT TIME SHOULD CONFINE ANY SNOWFALL TO THE HIGHEST PEAKS AND RIDGES. EXPECT LIGHTER WINDS AND SLIGHTLY WARMER TEMPERATURES TODAY BENEATH AN INCREASING AND GRADUALLY THICKENING VEIL OF HIGH CLOUD. WITHOUT THE BENEFIT OF SOLAR HEATING SHOULD SEE MOST IF NOT ALL OF THE SHOWER ACTIVITY IN THE HIGH COUNTRY COME TO AN END BY AROUND MIDNIGHT. A WEAKENING RIDGE AXIS WILL BE OVER EASTERN COLORADO WITH A WEAK SHORT WAVE MOVING INTO SWRN CO.
Cool advection on northwest winds will keep highs in the 60s today with the cooler temps in the far northeast. Temperatures tonight will cool to near or below freezing mainly northeast of a Perry to Westmoreland to Washington line and have issued a freeze warning for late tonight until 9 AM Saturday. Lows across the rest of the area are expected to remain above freezing with temps mainly in the middle 30s. Highs are always in challenge in warm front passages but the lack of moisture near it and good mixing even ahead of it should bring temps several degrees warmer than today.
NORMAL HIGHS THIS TIME OF YEAR ARE IN THE LOW 50S.
627 AM CDT FRI APR 8 2016 EARLY MORNING WV IMAGERY INDICATED A DEEP TROUGH OVER THE GREAT LAKES. ANOTHER SHRTWV TROUGH WITHIN THE MEAN TROUGH WAS LOCATED OVER THE UPPER MS RIVER VALLEY THIS MRNG. BUT NEVERTHELESS WE ARE EXPECTING FREEZING TEMPERATURES ACROSS THE AREA. LIMITED MIXING IS EXPECTED WITH THIS PATTERN BUT WITH WARMING TEMPERATURES ALOFT WE SHOULD SEE HIGHS ON SAT A CAT OR TWO WARMER THAN TODAY. THE WAA PATTERN WILL CONT INTO SAT NIGHT AHEAD OF A COLD FRONT AND ASSOCIATED UPPER LEVEL TROUGH THAT IS EXPECTED TO CROSS THE NORTHERN PLAINS/SRN CANADA. MAINLY IN THE ERN CWA AS THE SFC COLD FRONT SHIFTS SEWD THROUGH FA.
HIGH PRESSURE ALOFT WILL CONTINUE TO KEEP THE AIRMASS DRY WITH ONLY A FEW CLOUDS ACROSS THE REGION. HIGH PRESSURE WILL ALSO WARM THE AIRMASS AND SOME LOCATIONS WILL SEE NEAR RECORD HIGH TEMPERATURES TODAY.
BASED ON CURRENT TEMPERATURES SEEN IN OBS IN THE LOWER TO MID 50S WEST OF I-65 WHERE MORE SUNSHINE IS OCCURRING. A REINFORCING COLD FRONT WILL MOVE ACROSS THE REGION DURING THE LATE EVENING.
WINDS WILL SLOWLY SHIFT TO THE SOUTH THIS AFTERNOON/EVENING AS THE HIGH MOVES OFF TO THE SOUTHEAST. FIRE WEATHER CONDITIONS WILL BE ELEVATED DUE TO THE LOW RH THAT IS EXPECTED THIS AFTN AND DRY VEGETATION.
AN UPPER LEVEL LOW CURRENTLY SPINNING OFF THE NORTHERN BAJA CALIFORNIA COAST IS SPREADING MOISTURE NORTHWARD OVER SOUTHERN AND CENTRAL CALIFORNIA. ANOTHER UPPER LOW APPROACHING FROM THE NORTH WEST WILL ALSO ENHANCE SHOWER ACTIVITY BY TONIGHT AND BRING A SLIGHT CHANCE OF THUNDERSTORMS TO THE SOUTHERN COUNTIES BY SATURDAY.
LOW PRESSURE IN THE GREAT LAKE REGION TODAY WILL MOVE OFF THE MID ATLANTIC COAST SATURDAY.
A LATE WINTER TROUGH REMAINS IN PLACE ACROSS THE EASTERN CONUS. AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. LATEST AVAILABLE LAND AND MARINE SURFACE OBSERVATIONS AND ANALYSIS DETAIL AN ATTENDANT COLD FRONT FROM A 984 MB LOW OVER QUEBEC WITHERING TO A WEAK TROUGH ACROSS THE FLORIDA PENINSULA. A SLIGHTLY BETTER DEFINED COLD FRONT IS FROM UPSTREAM OF THAT FEATURE. TEMPERATURES ACROSS THE ISLANDS HAVE ALREADY REACHED TO LOWER TO MID 70S WITH DEWPOINTS IN THE LOWER TO MID 60S. AND SUFFICIENT MIXING EXISTS FOR TEMPERATURES TO REACH THE LOWER 80S UNDER AZURE BLUE SKIES. THE LOW TEMPERATURE SO FAR TODAY AT KEY WEST INTERNATIONAL AIRPORT IS 68 DEGREES.
WATCHING A COLD FRONT ACROSS EASTERN ND AND WESTERN MINNESOTA QUICKLY DROP SOUTHWARD. AREAS ALONG THE BUFFALO RIDGE MAY SEE A QUICK BURST OF LIGHT SNOW THROUGH MID-MORNING. LOWS TONIGHT WILL FALL INTO THE LOWER 20S.
THE STRONG UPPER RIDGE WHICH EXTENDS ACROSS SE OREGON AND SW IDAHO TODAY WILL WEAKEN TONIGHT AND SATURDAY. MOISTURE ROTATING AROUND A LOW PRESSURE SYSTEM IN THE SOUTHWESTERN U. BUT STILL ENOUGH TO WARRANT A SLIGHT CHANCE OF AFTERNOON SHOWERS AND THUNDERSTORMS OVER THE HIGHER TERRAIN OF BAKER COUNTY AND THE BOISE/WEST CENTRAL MOUNTAINS.
EDGE OF SOUTHEASTWARD MOVING CLOUD SHIELD IN THE LOWER OHIO VALLEY WILL CONTINUE TO CLIP NORTHWEST TENNESSEE THIS MORNING. /ISSUED 347 AM CDT FRI APR 8 2016/ AN UNUSUALLY DEEP LONGWAVE TROF WILL PREVAIL OVER THE EASTERN CONUS THROUGH SATURDAY. A REINFORCING ARCTIC COLD FRONT WILL MOVE THROUGH THE MIDSOUTH LATE TONIGHT. LONGWAVE TROF WILL LIFT OFFSHORE SATURDAY NIGHT. ALLOWING SOUTHERN BRANCH ZONAL FLOW TO DEVELOP OVER THE LOWER MS RIVER VALLEY.
RIDGE OF HIGH PRESSURE OVER THE REGION WILL CONTINUE TO DOMINATE THE WEATHER PATTERN. AN UPPER LEVEL LOW OFF THE COAST OF CALIFORNIA WILL SEND A LITTLE CLOUDINESS INTO THE REGION MAINLY IN THE FORM OF SOME HIGH CLOUDS.
SHOWERS AND COOLER TEMPERATURES WILL WILL AFFECT NORTHERN ARIZONA TODAY.
Previous model output indicated dry conditions behind the trough, however, the latest HRRR and RAP updates are now indicating a redevelopment of isolated showers this afternoon progressing from NW to SE into our counties. High pressure ridge axis slips over Central Illinois tomorrow during the day as winds shift from northerly in the morning.
Cloud cover continuing to stream northward due to upper level low moving into SoCal.
This cool air advection will limit afternoon highs from warming out of the low to mid 60s today. This Canadian airmass will also bring freezing temperatures to the eastern Ozarks tonight. Temperatures at or slightly above freezing are expected for the rest of the area. A warm front will lift back through southwest Missouri and southeast Kansas on Saturday, helping to boost temperatures back in to the low 70s. Despite this warm front, there doesn't appear to be much of a precipitation signal on Saturday.
ANOTHER PLEASANT EARLY SPRING DAY ON TAP WITH RIDGE ALOFT MOVING OVER OUR FORECAST AREA AND WITH WEAK LOW LEVEL PRESSURE GRADIENTS. WARMER HIGH TEMPERATURES TODAY BASED ON RISES IN HEIGHTS ALOFT AND THICKNESSES. MOST LOCATIONS WILL REMAIN AT OR ABOVE FREEZING WITH INCREASE IN CLOUD COVER AND A MODERATING AIRMASS.
DEEPER DRIER LAYER IN THE LOWER LEVELS SHOULD RESULT IN MAINLY VIRGA. A WEAK COLD FRONT BRINGS A BRIEF PERIOD OF N TO NE WINDS 7 KTS OR LESS ACROSS THE HILL COUNTRY TO ALONG AND EAST OF I-35 THIS MORNING INCLUDING KAUS/KSAT/KSSF. UPPER AIR ANALYSIS LAST EVENING SHOWED A RIDGE FROM THE BIG BEND TO THE PACIFIC NORTHWEST. A COLD FRONT WAS STRETCHED ACROSS CENTRAL TEXAS. THE UPPER RIDGE WILL REMAIN IN PLACE OVER THE SOUTHERN PLAINS DURING THIS PERIOD. AN UPPER LEVEL SHORT WAVE TROUGH WILL MOVE THROUGH THE PATTERN BRINGING A CHANCE FOR SHOWERS AND THUNDERSTORMS TONIGHT AND SATURDAY.
THE LOW PRESSURE SYSTEM ADVANCING NORTH THROUGH SOUTHERN CALIFORNIA WILL SPREAD PRECIPITATION NORTH INTO UTAH TODAY. THE LOW PRESSURE SYSTEM OFF THE CALIFORNIA COAST IS MAKING ITS WAY ONSHORE THIS MORNING. THIS INITIAL TROUGH WILL FALL APART AS IT LIFTS NORTHWARD SO ASSOCIATED FORCING WILL NOT BE GREAT BUT WILL ALLOW FOR SOME SHOWER ACTIVITY.
BREEZY AND WARM TODAY WITH MUCH COOLER TEMPS FUNNELING OVER THE. DRY COLD FRONT BISECTED THE AREA THIS MORNING WITH W WESTS AHEAD OVER THE BOUNDARY OVER NE FL AND WIND SHIFT TO THE NNW TRAILED FROPA OVER SE GA. MOSTLY SUNNY SKIES WILL PREVAIL TODAY AS HIGH TEMPS RISE INTO THE LOW 80S ACROSS NE FL TO THE MID/UPPER 70S OVER SE GA. WEST WINDS 10-15 KTS WITH HIGHER GUSTS TODAY AS DRY COLD FRONT PUSHES SOUTH ACROSS THE WATERS WITH COMBINED SEAS 4 FT OR LESS.
/issued 402 AM CDT FRI APR 8 2016/ (Today and Tonight) Weak cold front has pushed across all of West Central Texas this morning.
A large northern stream trough will prevail across the eastern CONUS through the day, with a dry cold front forecast to move through the Tri-State region. Expect highs to peak in the low 70s from Dothan to Albany, to near 80 degrees in Cross City.
CLOUDS WILL BE ON THE INCREASE AS A TROUGH APPROACHES. /ISSUED 417 AM CDT FRI APR 8 2016/ UPPER LEVEL TROUGH ALONG THE BAJA COAST CONTINUING TO SPREAD HIGH CLOUDS ACROSS THE PANHANDLES THIS MORNING. LIGHT AND VARIABLE WINDS ASSOCIATED WITH A BROAD AREA OF HIGH PRESSURE THAT WILL SHIFT EAST AND GIVE WAY TO LEESIDE TROUGHING LATER THIS AFTERNOON. LITTLE COOLER THAN YESTERDAY DUE TO THE INCREASE IN CLOUD COVER.
A PACIFIC LOW PRESSURE SYSTEM WILL LINGER OVER THE REGION TODAY.
THE SYSTEM IS CURRENTLY OVER NORTHERN MINNESOTA AND WILL QUICKLY SWEEP SOUTHEAST INTO THE LOWER LAKE MICHIGAN REGION BY THIS AFTERNOON. THIS SYSTEM WILL DRAG A COLD FRONT THROUGH IOWA BY THE AFTERNOON LEADING TO A VERY COLD NIGHT TONIGHT.
READINGS WILL LIKELY BE A FEW DEGREES WARMER THAN YESTERDAY WITH SOME LOCATIONS REACHING THE LOW 60S.
WITH HIGH PRESSURE RIDGING OVER THE CENTRAL CONUS IN BETWEEN TROUGHS ON THE COASTS. SURFACE ANALYSIS THIS MORNING SHOWS CALM TO LIGHT WINDS WITH SURFACE RIDGING IN PLACE.
526 AM EDT MON MAR 28 2016 A COLD FRONT WILL CROSS THE REGION THIS MORNING BRINGING A PERIOD OF SHOWERS.
TODAY THROUGH TUESDAY NIGHT HIGH PRESSURE WILL DOMINATE TODAY WITH MAINLY CLEAR SKIES AND MILD TEMPERATURES EXPECTED. THE HIGH IS EXPECTED TO SLIDE OFF TO THE EAST AND NORTHEAST TONIGHT. OVERALL PROGRESSIVE PATTERN WILL CONTINUE AS A DEEP UPPER LOW WILL BE LOCATED OVER THE GREAT BASIN TUESDAY MORNING.
439 AM EDT MON MAR 28 2016 A COLD FRONT WILL CROSS THE REGION THIS MORNING BRINGING A PERIOD OF SHOWERS.
620 AM EDT MON MAR 28 2016 A COLD FRONT WILL MOVE ACROSS THE REGION THIS AFTERNOON.
UPPER RIDGE AXIS WAS SITUATED FROM CENTRAL MT TO NORTHERN UT. TEMPERATURES WERE 10 TO 15 DEGREES WARMER THAN THIS TIME YESTERDAY WITH 40S AND 50S. UPPER RIDGE AXIS TO THE WEST PASSES OVER THE REGION TONIGHT AND INTO THE GREAT PLAINS MONDAY. THE PACIFIC UPPER LOW INTENSIFIES AS IT TRACKS SOUTH INTO THE GREAT BASIN MONDAY AFTERNOON/NIGHT THEN PROGRESSES SLOWLY EAST ACROSS THE CENTRAL ROCKIES TUESDAY/ TUESDAY NIGHT. RAIN WILL CHANGE TO SNOW MONDAY NIGHT FOR THE HIGHER ELEVATIONS. THERE IS BETTER MODEL AGREEMENT WITH THE TRACK OF THE UPPER LOW ACROSS THE CENTRAL ROCKIES/HIGH PLAINS TUESDAY/TUESDAY NIGHT. IT WILL BE MILD TUESDAY WITH HIGHS IN THE 50S-MID 60S FOR THE HIGH PLAINS. THERE IS STILL SOME UNCERTAINTY ON THE EXACT TRACK OF THE LOW PRESSURE SYSTEM.
A DEEP UPPER LOW CENTERED OVER THE PACNW THIS MORNING WILL ELONGATE SOUTH OVER THE GREAT BASIN AND MT TODAY THEN PIVOT BACK NE ACROSS THE NRN ROCKIES TUESDAY. ON THE WEST SIDE OF THE LOW AN ANOMALOUS NE TO NW WIND WILL BRING ADVISORY SPEEDS GUSTING TO 45 MPH ACROSS OREGON TO THE LOWER TREASURE VALLEY TUESDAY AFTERNOON THOUGH IT WILL BE BREEZY WITH GUSTS AROUND 25 MPH FOR MANY AREA TODAY. HIGH END SNOW ADVISORY ALSO EXPECTED ACROSS THE WEST MAGIC VALLEY THROUGH NOON TUESDAY ALTHOUGH CONFIDENCE IN SNOW AMOUNTS IS LOWER DUE TO TEMPERATURES JUST BELOW FREEZING. THE COLD UPPER LEVEL LOW CENTERED OVER THE GREAT BASIN WILL CONTINUE TO SUPPORT SCATTERED SNOW SHOWERS TUESDAY NIGHT EAST AND SOUTH OF MOUNTAIN HOME AND IN SOUTHEAST OREGON ALONG THE NEVADA BORDER.
653 AM EDT MON MAR 28 2016 A COLD FRONT WILL CROSS THE REGION THIS MORNING BRINGING A PERIOD OF SHOWERS.
327 AM MDT MON MAR 28 2016 UPPER LEVEL RIDGE AXIS WILL SHIFT EAST WHILE DEEP UPPER LEVEL TROUGH DROPS INTO THE GREAT BASIN AND CUTS OFF. WITH POSSIBLY JUST A COUPLE SHOWERS REACHING THE HIGHER MOUNTAINS. IN FACT THE ECMWF HAS THE LOW MOVING RIGHT OVER DENVER BY 12Z WED WITH FAVORABLE QG ASCENT NORTH OF A DENVER TO AKRON LINE. BY THU THE UPPER LEVEL LOW WILL BE WELL ENE OF THE AREA HOWEVER A SECONDARY DISTURBANCE IN NNW FLOW ALOFT MAY AFFECT NRN CO THU AFTN INTO THU EVENING ALONG WITH ANOTHER SURGE OF COOLER AIR.
324 AM EDT MON MAR 28 2016 A DEEPENING LOW PRESSURE CENTER TRAVELING ACROSS THE EASTERN GREAT LAKES WILL BRING CLOUDY. COOLER AND BREEZY CONDITIONS TODAY. HIGH PRESSURE AND A COOL.
For today, expect an overcast and much cooler day. This low level moisture will remain entrenched across much of the area until at least the afternoon hours, deepest this morning when some patchy drizzle is possible across southern Indiana and northern Kentucky. The metro areas may stay up around 40 while the typical rural cooler spots fall down to the 32-35 range.
128 AM EDT MON MAR 28 2016 SHOWERS AND THUNDERSTORMS WILL CROSS THE AREA IN ASSOCIATION WITH A COLD FRONT THROUGH THE MORNING. HIGH PRESSURE WILL FOLLOW AFTER TODAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. ONGOING CONVECTION TO OUR WEST IN ASSOCIATION WITH AN EASTWARD STREAKING COLD FRONT WILL MOVE INTO THE AREA WITHIN THE NEXT HOUR OR SO. A NEGATIVELY-TILTED MID-LEVEL SHORT WAVE TROUGH IS ENHANCING MID-LEVEL SUPPORT FOR ASCENT AND INSTABILITY AHEAD OF THE FRONT.
519 AM EDT MON MAR 28 2016 A COLD FRONT WILL MOVE ACROSS THE REGION THIS AFTERNOON.
532 AM EDT MON MAR 28 2016 SHOWERS AND THUNDERSTORMS WILL CROSS THE AREA IN ASSOCIATION WITH A COLD FRONT THROUGH THE MORNING. HIGH PRESSURE WILL RETURN AFTER TODAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. SHOWERS HAVE MOVED ACROSS MOST OF THE AREA ALREADY THIS MORNING IN ADVANCE OF A COLD FRONT THAT LOOKS TO BE SNEAKING INTO WESTERN PENNSYLVANIA AT THIS HOUR.
452 AM MDT MON MAR 28 2016 UPPER LOW OVER THE PACIFIC NORTHWEST WILL DROP SOUTHEASTWARD INTO NV AND WRN UT BY THIS EVENING. TEMPERATURES SHOULD REBOUND BACK INTO THE 60S AND 70S ACROSS MOST OF THE LOWER ELEVATIONS. LEE TROF TONIGHT SHOULD KEEP TEMPERATURES ON THE MILDER SIDE FOR ALL AREAS.
400 AM EDT MON MAR 28 2016 A COLD FRONT WILL MOVE ACROSS THE REGION THIS AFTERNOON.
Upper level troughing will develop across the western United States today while lee troughing becomes established in the lee of the Rockies. On Tuesday, a dryline will take shape across western Kansas ahead of the upper level trough.
329 AM EDT MON MAR 28 2016 SHOWERS AND THUNDERSTORMS WILL CROSS THE AREA IN ASSOCIATION WITH A COLD FRONT THROUGH THE MORNING. HIGH PRESSURE WILL RETURN AFTER TODAY PROVIDING DRY CONDITIONS THROUGH MIDWEEK. A NEGATIVELY-TILTED MID-LEVEL SHORT WAVE TROUGH IS ENHANCING MID- LEVEL SUPPORT FOR ASCENT AND INSTABILITY AHEAD OF THE FRONT.
206 AM EDT MON MAR 28 2016 WEAK AREAS OF LOW PRESSURE WILL TRACK NORTHEAST ACROSS THE REGION THROUGH TONIGHT. ANOTHER COLD FRONT WILL MOVE ACROSS THE REGION BY LATE MONDAY.
LATEST OBSERVATIONS INDICATE THAT PATCHY FOG HAS DEVELOPED ALONG THE COASTAL ZONES EARLY THIS MORNING IN ADVANCE OF A COLD FRONT THAT IS POSITIONED TO OUR WEST. OVERNIGHT TEMPERATURES MUCH COOLER WITH LOWS IN THE MID 40S ALONG AND NORTH OF THE HWY 84 CORRIDOR.
202 AM EDT MON MAR 28 2016 A STRENGTHENING AREA OF LOW PRESSURE OVER SOUTHERN LOWER MICHIGAN WILL MOVE NORTHEAST OVERNIGHT AND DRAG A COLD FRONT ACROSS THE REGION. THE LOW WILL CONTINUE NORTHEAST ON MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA FROM THE WEST. THE HIGH WILL BUILD OVER THE AREA TUESDAY. THERE IS SOME CONCERN ABOUT INCREASING WINDS AS THE COLD FRONT SWEEPS ACROSS THE CWA AND COLD ADVECTION OCCURS. MONDAY MORNING LOW PRESSURE WILL BE BETWEEN LAKE ERIE AND LAKE HURON WITH THE COLD FRONT JUST EAST OF THE AREA. HIGH PRESSURE BUILDS IN FOR TUESDAY.
357 AM CDT MON MAR 28 2016 A WEAK COLD FRONT HAS STALLED OUT IN THE SOUTH THIS MORNING. AN UPPER RIDGE WILL BE FILLING IN BEHIND THE SHORT WAVE TODAY. OMEGA INCREASES AHEAD OF APPROACHING UPPER LOW TUESDAY NIGHT.
340 AM CDT MON MAR 28 2016 AN UPPER LEVEL RIDGE WILL BUILD OVER THE NORTHLAND TODAY AND TUESDAY. HIGH PRESSURE AT THE SFC WILL KEEP WINDS LIGHT TODAY. ON TUESDAY THE HIGH WILL MOVE ACROSS LOWER MICHIGAN AND THE OHIO VALLEY. WINDS WILL THEN INCREASE WITH A RETURN FLOW OF SOUTHERLY WINDS ON THE BACKSIDE OF THE HIGH. TEMPERATURES WILL WILL BE WARMER TODAY. BUT THEN BE MUCH WARMER TOMORROW IN THE STRONG WARM AIR ADVECTION PATTERN THAT HAS SET UP IN THE SOUTHERLY FLOW. THIS MORNING PATCHY FOG DEVELOPED UNDER THE RIDGE WHERE SKIES WERE CLEAR IN NWRN WI.
W/V IMAGERY SHOWS UPPER TROF ACROSS PACIFIC STATES DIGGING SOUTHWARD. DISTURBANCES RIDING UNDER THE TROF IN THE SW FLOW WILL MOVE ACROSS MEXICO AND INTO TEXAS ON WED. A COLD FRONT WILL THEN MOVE INTO SE TX THURS MORNING.
334 AM CDT MON MAR 28 2016 COLD FRONT HAS FINALLY PUSHED SOUTH AND EAST OF OUR SOUTHEAST PARISHES BUT CLOUD COVER HAS BEEN STUBBORN TO MOVE OUT OF OUR SOUTHEAST ZONES THIS MORNING.
214 AM MDT MON MAR 28 2016 LATEST UPPER AIR ANALYSIS SHOWS A SHORT WAVE RIDGE MOVING ONTO THE PLAINS THIS AFTERNOON. DRY AIR/SUBSIDENCE BEHIND THE EXITING TROUGH HAS LEAD TO A CLEAR SKY. A LOW LEVEL RIDGE OVERHEAD HAS CAUSED THE WINDS TO BE LIGHT THIS AFTERNOON. TONIGHT WARM AIR ADVECTION WILL HELP KEEP LOWS WARMER THAN LAST NIGHT. MONDAY WILL BE WARMER AS WARM AIR ADVECTION CONTINUES WITH THE RIDGE OVERHEAD. DURING THE AFTERNOON THE LOW LEVEL JET WILL BECOME BROADER BUT THE STRONGEST WINDS WILL DECLINE.
432 AM EDT MON MAR 28 2016 COLD FRONT IS PRESENTLY BEARING DOWN ON SOUTHEAST KENTUCKY AND SHOULD PASS THROUGH THESE AREAS BY 5 AM. A NARROW BAND OF INTENSE SHOWERS WITH AN OCCASIONAL LIGHTNING STRIKE WILL ACCOMPANY THE COLD FRONT PASSAGE. THIS WILL LEAD TO A CHILLY NIGHT AS TEMPERATURES FALL INTO THE LOW TO MID 30S. WHICH SHOULD ALLOW A QUICK RECOVERY IN TEMPERATURES INTO THE LOW 60S FOR MUCH OF THE AREA. A DEEP UPPER TROUGH WILL CRUISE ACROSS THE CENTRAL ROCKIES. WHILE A NORTHERN STREAM SHORT WAVE TROUGH SKIRTS THE U.
1130 PM MDT SUN MAR 27 2016 UPPER LOW DROPS INTO THE GREAT BASIN OVERNIGHT INTO MONDAY AS UPPER RIDGE AXIS SLIDES EASTWARD INTO THE CENTRAL PLAINS. OVERNIGHT LOWS WILL DROP BELOW FREEZING AT MOST LOCATIONS AS WINDS DECOUPLE FOR A TIME EARLY IN THE NIGHT. BREEZY AND MUCH WARMER CONDITIONS DEVELOP. AND WILL KEEP SOME LOW POPS IN PLACE FOR THE HIGHER MOUNTAIN ZONES AFTER 19Z-20Z.
353 AM CDT MON MAR 28 2016 Upper level troughing will develop across the western United States today while lee troughing becomes established in the lee of the Rockies. On Tuesday, a dryline will take shape across western Kansas ahead of the upper level trough.
WITH COOLER CONDITIONS AND HIGH TEMPERATURES IN THE MID TO UPPER 40S THIS AFTERNOON. A RIDGE OF HIGH PRESSURE WILL SETTLE ACROSS THE REGION TONIGHT PROVIDING DIMINISHING WINDS AND CHILLY CONDITIONS WITH LOWS FROM THE UPPER 20S TO LOWER 30S.
407 AM CDT MON MAR 28 2016 AT H5 RIDGE OFF THE PACIFIC COAST WITH A CLOSED CUTOFF LOW OVER THE PACIFIC NORTHWEST. RIDGING THROUGH THE NORTHERN PLAINS WITH A TROUGH THROUGH THE GREAT LAKES INTO THE CAROLINAS. BUILDING RIDGE AND WARM 850MB TEMPERATURES OVER WESTERN NEBRASKA AT 12C.
attention quickly shifts to cold temperatures as high pressure builds in. a freeze warning has been posted for much of the Lower Missouri River Valley. wx concerns continue to be negligible was high pressure will dominate the local pattern through much of the day on Monday. As the high center slides off to our southeast by early Monday afternoon. should allow daytime highs to climb into the lower to middle 60s across much of the area. Increased southerly flow in advance of this feature combined with the northward lifting of a warm front to our south will set the stage for increasing clouds and periods of light rain shwrs Tuesday and Tuesday night.
THIS EVENING THROUGH TUESDAY NIGHT VIGOROUS UPPER TROUGH DIVING SE INTO THE WESTERN CONUS WILL SUPPORT A POTENT WINTER STORM OVER THE REGION BY MID WEEK. DEEP UPPER TROUGH WILL DIG INTO THE WESTERN CONUS. WHILE A PHASING NORTHERN STREAM TROUGH SUPPORTS A COLD FRONT INTO THE NORTHERN PLAINS.
327 AM CDT MON MAR 28 2016 The weather this week will be determined by an upper level low currently over the Pacific Northwest, that will drop south into the Four Corners region tomorrow. Increasing westerly winds on the southern periphery of the low will warm temperatures today and tomorrow.
A COLD FRONT WILL PUSH ACROSS THE FORECAST AREA LATE TONIGHT.
Satellite imagery reveals an upper level low circulation centered over northwest Montana with light to moderate shower activity over eastern Washington and the Idaho panhandle. Tuesday: Wrap-around moisture from a low pressure system located over northern Utah is expected to affect southwest Montana and Lemhi County.
308 AM CDT MON MAR 28 2016 MOSTLY SUNNY SKIES EXPECTED TODAY WITH HIGH PRESSURE SHIFTING EASTWARD THROUGH THE STATE TODAY. WITH A WARM FRONT ALOFT NOSING UP THROUGH THE WESTERN CWA THIS AFTERNOON. BRINGING TEMPERATURES INTO THE LOW TO MID 60S ACROSS THE FORECAST AREA BY TUESDAY AFTERNOON.
150 AM EDT MON MAR 28 2016 DEEPENING LOW PRESSURE TRAVELING ACROSS THE GREAT LAKES WILL DRAG A POTENT COLD FRONT ACROSS THE AREA TONIGHT. HIGH PRESSURE AND A COOL AND DRY AIRMASS WILL FOLLOW THE FRONT FOR MONDAY AND TUESDAY.
THE UPPER LEVEL TROUGH OVER THE AREA CONTINUES TO BRING SOME SHOWERS TO THE AREA THIS MORNING. AFTER A CHILLY NIGHT TONIGHT HIGH PRESSURE BUILDS INTO THE AREA BRINGING WARMING TEMPERATURES AND DRY CONDITIONS THROUGH THE WEEK.
WINDS WILL BECOME LIGHT AND VARIABLE AS HIGH PRESSURE MOVES OVER THE STATE DURING THE PERIOD. THESE WINDS WILL DECREASE LATER TONIGHT INTO MON AS HIGH PRESSURE MOVES OVER THE REGION. WITH THE MAIN PUSH OF MUCH COOLER AIR A FEW HOURS W OF THE INITIAL WIND SHIFT. WITH THE HIGH CENTER FCST TO BE OVR WRN AR MON MRNG. QUITE WX CONDS WL PREVAIL ON MON AS THE HIGH PRES CENTER PASSES ACRS AR.