Aikyam-Lab/Synoptic-Bench huggingface dataset:
Temperatures will fall into the upper 50s inland to the lower 60s coast.
Next mid/upper low pressure is currently located over far southwest KS this afternoon, and is forecasted to track over the area this evening and overnight. Ahead of the low pressure diffluence aloft and frontogenesis will support the development of a rain band over central KS. Closer to the low track decent moisture advection and mid level lapse rates will yield MU cape on the order of a few 100 j/kg. Therefore a cluster of storms is expected to develop north of the warm front that will stretch across southeast KS. These storms will be elevated with the warm front staying south of the area so damaging wind will be limited. The highest amounts will be north of the warm front and under the track of the upper level system.
A cold front will move southeast across the Bay Area and north Central Coast this evening and overnight.
Water vapor loop indicated an upper level trough from southern MAN to the western ND. Upper trough will move across the area tonight and Mon morning. Little or no precipitation is expected with trough tonight and Mon morning. Tomorrow, winds will begin to pick up a bit as a trough of low pressure develops to the west and the high moves off to the east. Even with northeast to east winds there should be some warmer 925mb temps moving in from the west as weak upper ridging approaches.
Southwesterly flow aloft ahead of the next system will bring warmer temperatures Monday.
930 PM EDT Sun Mar 26 2017 Showers and thunderstorms will develop today into tonight as low pressure moves to Lake Michigan.
912 PM CDT Sun Mar 26 2017 Updated for the expiration of the High Wind Warning and cancellation of the Red Flag Warning. Wind speeds have decreased rapidly this evening ahead of a cold front that will move through the area overnight tonight. Thus, the High Wind Warning that was in effect for the Guadalupe Mountains has been allowed to expire as scheduled. VFR conditions will persist through the next 24 hours within the dry slot of a potent upper low currently over southwestern KS. A weak cold front is expected to drop south across the Panhandle overnight, with frontal passage expected across KHOB, KINK, and KMAF in the 08-10Z range, with the front becoming quasi-stationary more or less along the Pecos River.
Some freezing rain may also develop as temperatures cool down overnight and Monday morning. Any lingering precipitation should diminish by Monday afternoon as high pressure builds into the region. Low pressure over southern Lake Michigan this evening will continue northeast tonight and an upper level disturbance will also move through the region. As weak high pressure moves over the region Monday, conditions will gradually improve for most areas.
911 PM CDT Sun Mar 26 2017 Severe thunderstorms continue to roll across southeast Oklahoma this evening as an upper level low spins across south-central Kansas. The severe threat will persist into the overnight hours across southeast Oklahoma into west-central Arkansas as the low level jet strengthens. Severe thunderstorms will also be possible over the next few hours near the Kansas/ Oklahoma closer to the upper level low and the surface cold front moving into the area.
A cold front will continue to move across the area overnight with cooler air moving into parts of the fa. A cold front will sweep northwest to southeast overnight shifting winds to northwest. /issued 258 PM CDT Sun Mar 26 2017/ Cirrostratus continues to stream overhead this afternoon ahead of the mid to upper low currently centered over SW KS. LCLs will also continue to lower as dewpoints climb into the low 60s. A subtle cold front will accompany the mid to upper low late tonight through tomorrow morning, with some dry air advection.
At 00 UTC surface analysis shows an area of high pressure off the Atlantic Coast and a strong storm system across the Central Plains.
VFR conditions will persist through the next 24 hours within the dry slot of a potent upper low currently over southwestern KS. A weak cold front is expected to drop south across the Panhandle overnight, with frontal passage expected across KHOB, KINK, and KMAF in the 08-10Z range, with the front becoming quasi-stationary more or less along the Pecos River.
859 PM EDT Sun Mar 26 2017 Showers and thunderstorms will develop today into tonight as low pressure moves to Lake Michigan.
1028 PM EDT Sun Mar 26 2017 Atlantic high pressure will weaken early this week.
A cold front will sweep northwest to southeast overnight shifting winds to northwest. /issued 258 PM CDT Sun Mar 26 2017/ Cirrostratus continues to stream overhead this afternoon ahead of the mid to upper low currently centered over SW KS. LCLs will also continue to lower as dewpoints climb into the low 60s. A subtle cold front will accompany the mid to upper low late tonight through tomorrow morning, with some dry air advection.
/issued 340 PM CDT Sun Mar 26 2017/ SHORT TERM (Tonight through Monday Night): The next midlevel trough is currently crossing into northern OK, with a trailing cold front across central Texas. Moisture flowing northward near the sfc will keep tempeartures above normal tomorrow, edging a degree or two higher into the low 90s for most areas.
additional showers and thunderstorms could be possible across Northeast Oklahoma into Northwest Arkansas overnight tonight into Monday morning as the upper low moves through the region. On the backside of the low.
858 PM CDT Sun Mar 26 2017 It was partly to mostly cloudy across the Mid-State this evening, with temperatures mainly in the lower to middle 60s. Weak ridging has wedged itself between today's earlier fropa and a system brewing over the Plains that will affect the mid state tomorrow afternoon and evening.
Gusty west winds sustained around 20 kts at 00 UTC will shift to the north in the next couple hours as a cold front moves through, but wind speeds will diminish with the loss of daytime mixing. /issued 300 PM CDT Sun Mar 26 2017/ Vertically stacked low positioned in far southwest KS will crawl east through the remainder of the day all the while a cold front accelerates south through the Panhandle and eventually the South Plains by sunset. Favorably timed surface ridging overnight and few clouds look on par for some chilly lows in our NW counties, but this ridge will remain progressive and depart the region by Monday afternoon allowing north winds to turn southeast and slowly remoisten.
Additional showers are expected overnight as a strong cold front and upper level system approach from the west. The cold front was just west of the CWA as of 830 pm MDT, and will move into southeast Oregon this evening and southwest Idaho late tonight. Precipitation coverage will increase beginning late tonight with cold frontal passage. Scattered showers will continue in the higher terrain through Monday evening. Warm front with light rain on the Idaho side this evening. Rain and mountain snow in all areas again late tonight and Monday morning as Pacific cold front moves through. Showers continuing Monday under upper trough.
Widespread to numerous strong to severe thunderstorms were ongoing in associated with the upper trough and the surface systems, and will continue into the overnight hours.
550 PM MDT Sun Mar 26 2017 As our most recent storm system continues to head eastward into the high plains, weak ridging aloft has begun over the western slope this afternoon. Despite rising heights, lingering low level moisture and cooler air aloft has resulted in a few scattered snow showers in the central and southern Colorado mountains. A mainly dry overnight is forecast as the ridge axis passes east of the divide around sunrise. Have opted to nudge temperatures upward by a degree or two in this forecast package favoring the warmer MET guidance, given strong mixing and warmer southerly flow portrayed in several forecast soundings across the region.
516 PM MDT Sun Mar 26 2017 Water vapor shows upper trof crossing the plains, weak upper ridge building into the nrn Rockies, and next upper trof moving onshore the west coast. At the sfc, weak inverted trof extends from nern CO through wrn SD. Pcpn will end rather quickly this evening as upper trof shifts east, and weak upper ridge builds into the nrn plains. Dry weather then expected through Monday, with warmer and drier conditions for tomorrow. Monday night, upper trof will work into the Rockies with upper low forming at the base of the trof near the Four Corners. A significant piece of upper energy expected to move from sern WY into swrn SD, with lift possibly enhanced through jet coupling, bringing widespread pcpn to our swrn portion of the cwfa along a developing inverted sfc trof.
831 PM EDT Sun Mar 26 2017 Above normal temperatures will prevail much of the upcoming week as high pressure offshore brings southerly winds.
622 PM CDT Sun Mar 26 2017 Upper low was pinwheeling over southwest Kansas at mid-afternoon and will continue steadily eastward across Kansas tonight.
A low pressure trough passing to the northeast will bring cooling Monday, and a chance of a few light showers along and west of the mountains.
743 PM EDT Sun Mar 26 2017 Atlantic high pressure will weaken early this week.
It looks like a few more showers and some thunder could develop again during the afternoon on Monday as another Central Plains upper trough shifts into the Mid Mississippi Valley.
912 PM EDT Sun Mar 26 2017 A front will remain stationary across the area through this evening then return as a warm front early Monday.
An upper level trough behind the front will give showers to the area through Monday night.
/issued 605 PM CDT Sun Mar 26 2017/ /00Z TAFS/ West to southwest winds will become light this evening, ahead of an approaching weak cold front. The cold front will move through the region early Monday morning, resulting in light north winds. /issued 345 PM CDT Sun Mar 26 2017/ (Tonight and Monday) Early this afternoon an upper low, associated with an eastward moving upper trough over the Southern Plains, is located just north of the Panhandle. A weak Pacific cold front located west of the CWA is trailing the dryline. Upper ridging will build over the area from the west in the wake of the departing upper trough.
605 PM CDT Sun Mar 26 2017 /00Z TAFS/ West to southwest winds will become light this evening, ahead of an approaching weak cold front. The cold front will move through the region early Monday morning, resulting in light north winds. /issued 345 PM CDT Sun Mar 26 2017/ (Tonight and Monday) Early this afternoon an upper low, associated with an eastward moving upper trough over the Southern Plains, is located just north of the Panhandle. A weak Pacific cold front located west of the CWA is trailing the dryline. Upper ridging will build over the area from the west in the wake of the departing upper trough.
1018 PM EDT Sun Mar 26 2017 Skies are mostly clear with temperatures averaging in the lower 70s along the island chain. Surface wise, a western Atlantic ridge axis is draped across the Sunshine state, with mostly east winds near 15 knots or less on our coastal waters. Deep layered ridging lying from the Gulf of Mexico will build across the Florida peninsula, resulting in limited moisture along with a decreasing low level trajectory. Under mostly clear skies and slackening east winds, temperatures will vary near to the lower 70s along the Florida Keys.
1004 AM EDT MON MAY 2 2016 SHOWERS AND STORMS LATER THIS AFTERNOON AND EARLY TONIGHT AS COLD FRONT AND UPPER DISTURBANCE PASS THROUGH. LARGE UPPER TROUGH BRINGS COOL AND UNSETTLED WEATHER FOR REMAINDER OF THE WEEK. SHORT WAVE OUT AHEAD OF AN APPROACHING COLD FRONT WILL PUSH ACROSS THE REGION THIS EVENING. BUT AS OF NOW IT APPEARS OUR EASTERN FORECAST AREA ALONG THE MOUNTAINS SHOULD SEE THE HIGHEST AMOUNTS IN THE RANGE OF 1 TO 2 INCHES. BY TUESDAY MORNING A COLD FRONT ACROSS VA. CODED LIKELY POPS ALONG THE MOUNTAINS AND WESTERN SLOPES GRADUALLY CHANGING TO CHANCE POPS OVER THE LOWLANDS TODAY.
A clearing sky across the western counties this morning is allowing temperatures to once again fall within a few degrees of freezing, with Syracuse currently reporting 34 degrees.
729 AM EDT MON MAY 2 2016 LOW PRESSURE OVER NORTH CENTRAL OHIO WILL MOVE EAST TODAY AS HIGH PRESSURE BRIEFLY BUILDS IN LATER TODAY THROUGH EARLY TUESDAY. TUESDAY AFTERNOON HOWEVER THE HIGH WILL WEAKEN AS LOW PRESSURE MOVES SOUTH ACROSS THE CENTRAL GREAT LAKES.
HIGH PRESSURE WILL BE EAST OF AREA WATERS THROUGH TONIGHT.
ISOLATED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THROUGH THE DAY WITH THE PASSAGE OF THE COLD FRONT BY MID MORNING. EXPECT THE SLIGHT COOLER TEMPS TONIGHT REACHING THE MID TO LOW 60S ACROSS THE CWA. THE FRONT WILL STALL NEAR THE RIO GRANDE ENHANCING THE SHOWER ACTIVITY NEAR THE LOWER COAST TUESDAY WITH CLOUDY CONDITIONS THROUGH THE DAY. THE POTENTIAL FOR RAIN WILL BE LIMITED FOR THE NORTHERN COUNTIES AS MOST OF THE DEEPER MOISTURE REMAINS SOUTH NEAR THE LOWER RIO GRANDE.
1018 AM EDT MON MAY 2 2016 MORNING SOUNDING SHOWS INITIAL WARM BUBBLE AROUND 650-700 MBS WITH COOLER AIR ALOFT.
KTW /ISSUED 641 AM CDT MON MAY 2 2016/ A LINE OF SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ALONG A COLD FRONT NEAR THE MS/AR BORDER.
1058 AM EDT MON MAY 2 2016 A WARM FRONT WILL MOVE NORTH THROUGH THE MID ATLANTIC TODAY. A COLD FRONT WILL SLOWLY MOVE THROUGH THE AREA THIS EVENING.
COLD FRONT HAS MOVED OFFSHORE WITH BREEZY NORTH WINDS ACROSS THE REGION.
A blocking pattern is in place with a high amplitude ridge axis over western NOAM with downstream troughing over the Midwest into the central Plains.
634 AM CDT MON MAY 2 2016 A SMALL CHANCE FOR SPOTTY SHOWERS BOTH THIS AFTERNOON AND TONIGHT ARE THE PRIMARY WRINKLES IN OUR FORECAST FOR MORE SUN AND WARMER TEMPERATURES INTO MID WEEK. AN ELONGATED TROUGH AXIS EXTENDED FROM THE GREAT LAKES TO THE SOUTHWEST ACROSS EASTERN NEBRASKA AND INTO COLORADO THIS MORNING. SHORT WAVE EMANATING FROM COLORADO SECTION OF TROUGH IS FORECAST TO SWING EAST TODAY.
AFTER 1 PM MOSTLY CLOUDY CONDITIONS AND MORE WIDESPREAD SHOWERS AND STORMS ALONG AND AHEAD OF A COLD FRONT SHOULD DEVELOP AND MOVE INTO NORTHEAST ALABAMA THROUGH THE LATE AFTERNOON HOURS. AS A SLOW MOVING COLD FRONT MOVES INTO GEORGIA. KTW /ISSUED 641 AM CDT MON MAY 2 2016/ A LINE OF SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ALONG A COLD FRONT NEAR THE MS/AR BORDER.
H100-H70 RIDGE AXIS CENTERED SW OF BERMUDA WITH A TRAILING AXIS DRAPED OVER THE FL PENINSULA WILL GENERATE A DEEP S/SE FLOW ACRS THE REGION. A SHARP SUBSIDENCE INVERSION IN THE H85-H70 LYR REVEALS A MID LVL THERMAL RIDGE THAT WILL IMPEDE CONVECTIVE DEVELOPMENT. RIDGE CONFIRMED BY RAP40 ANALYSIS WITH H70 TEMPS ARND 7C OVER THE NECK OF THE FL PENINSULA. RADAR DATA REVEALS THE IMPACT OF THIS THERMAL RIDGE. MARGINAL CONDS AS A HI PRES RIDGE CENTERED SW OF BERMUDA GENERATES A GENTLE TO MODERATE SE BREEZE ACRS THE LCL ATLC.
1238 PM EDT MON MAY 2 2016 LOW PRESSURE OVER NORTH CENTRAL OHIO WILL MOVE EAST TODAY AS HIGH PRESSURE BRIEFLY BUILDS IN LATER TODAY THROUGH EARLY TUESDAY. TUESDAY AFTERNOON HOWEVER THE HIGH WILL WEAKEN AS LOW PRESSURE MOVES SOUTH ACROSS THE CENTRAL GREAT LAKES.
1137 AM EDT MON MAY 2 2016 A MOIST SOUTHERLY FLOW WILL CONTINUE INTO THE FORECAST AREA THROUGH TONIGHT AHEAD OF A SLOW MOVING COLD FRONT.
A COASTAL TROUGH ALONG THE SOUTHERN TEXAS COAST REMAINS. MODEL SOUNDINGS SHOW A RATHER SHALLOW LAYER OF COOLER TEMPERATURES. HAVE COOLED TEMPERATURES INTO THE LOW 70S ACROSS THE NORTHERN ZONES FROM COTULLA TO VICTORIA.
A WEAKENING LOW PRESSURE SYSTEM WILL MOVE ACROSS SOUTHERN UTAH TODAY. HIGH PRESSURE WILL BRING A WARMING TREND THROUGH MIDWEEK. THE NEXT PACIFIC TROUGH WILL ADVANCE INTO THE GREAT BASIN LATE IN THE WEEK. SURFACE RIDGING WILL BUILD OVER THE FORECAST AREA FOR MUCH OF THE WORK WEEK.
1022 AM EDT MON MAY 2 2016 A WEAK LOW PRESSURE SYSTEM WILL MOVE SOUTH OF THE REGION BRINGING RAIN BY NOON. THE LOW WILL MOVE OFF THE COAST AND AWAY FROM NEW ENGLAND THIS EVENING AND RAIN WILL TAPER OFF FROM WEST TO EAST. WEAK HIGH PRESSURE WILL BRIEFLY BUILD IN MONDAY NIGHT INTO TUESDAY WITH DRIER WEATHER. ADDITIONAL MOISTURE AND ENERGY ARRIVES LATE MORNING ASSOCIATED TROF MOVING IN FROM THE OHIO VALLEY. TONIGHT THINGS WILL BEGIN TO DRY OUT FOR THE MOST PART AS SHORT WAVE TROF MOVES EAST OF THE AREA. TEMPERATURES WARMER THAN THE PAST COUPLE OF DAYS ARE EXPECTED WITH HIGHS RIGHT AROUND SEASONAL NORMALS.
1010 AM EDT MON MAY 2 2016 LOW PRESSURE OVER NORTH CENTRAL OHIO WILL MOVE EAST TODAY AS HIGH PRESSURE BRIEFLY BUILDS IN LATER TODAY THROUGH EARLY TUESDAY. TUESDAY AFTERNOON HOWEVER THE HIGH WILL WEAKEN AS LOW PRESSURE MOVES SOUTH ACROSS THE CENTRAL GREAT LAKES.
WE HAVE RECEIVED REPORTS THIS MORNING OF SEAS OF 4-6 FEET IN A SOUTHEAST SWELL JUST OFF THE REEF SOUTH OF THE LOWER FLORIDA KEYS. A HIGH PRESSURE AREA OVER THE WESTERN NORTH ATLANTIC WILL WEAKEN AND SHIFT EASTWARD THIS AFTERNOON THROUGH TUESDAY.
1008 AM MDT MON MAY 2 2016 WITH THE UPPER LEVEL RIDGE IN PLACE.
1253 PM EDT MON MAY 2 2016 HYDRO LOW PRESSURE MOVING ACROSS OHIO WILL QUICKLY MOVE EAST TO PENNSYLVANIA TODAY AND RAIN WILL END THIS MORNING AND THEN SKIES WILL BECOME PARTLY SUNNY.
DRY AND WARM CONDITIONS WILL CONTINUE ACROSS THE AREA TODAY AS A HIGH PRESSURE RIDGE PERSISTS ACROSS THE REGION. A TROUGH OF LOW PRESSURE AND ASSOCIATED COLD FRONT WILL APPROACH THE AREA TONIGHT AND MOVE THROUGH THE REGION TUESDAY. A HIGH PRESSURE RIDGE EXTENDING ACROSS THE REGION WILL MAINTAIN CLEAR TO PARTLY CLOUDY SKIES ACROSS THE AREA TODAY. A WEAK COLD FRONT WILL APPROACH THE REGION TODAY AND MOVE ACROSS THE AREA ON TUESDAY.
THERE IS A SLIGHT CHANCE FOR SHOWERS AND THUNDERSTORMS IN ALL BUT THE IMMEDIATE COASTAL AREAS MONDAY AFTERNOON AND EVENING, BUT DUE TO THE LOW CHANCES HAVE LEFT MENTION OF ALL BUT SCATTERED CUMULUS DECKS OUT OF THE CURRENT TAF. A COLD FRONT WILL MOVE THROUGH THE WATERS ON TUESDAY.
751 AM EDT MON MAY 2 2016 A WEAK LOW PRESSURE SYSTEM WILL MOVE SOUTH OF THE REGION BRINGING RAIN BY NOON. THE LOW WILL MOVE OFF THE COAST AND AWAY FROM NEW ENGLAND THIS EVENING AND RAIN WILL TAPER OFF FROM WEST TO EAST. WEAK HIGH PRESSURE WILL BRIEFLY BUILD IN MONDAY NIGHT INTO TUESDAY WITH DRIER WEATHER. ADDITIONAL MOISTURE AND ENERGY ARRIVES LATE MORNING ASSOCIATED TROF MOVING IN FROM THE OHIO VALLEY. TONIGHT THINGS WILL BEGIN TO DRY OUT FOR THE MOST PART AS SHORT WAVE TROF MOVES EAST OF THE AREA. TEMPERATURES WARMER THAN THE PAST COUPLE OF DAYS ARE EXPECTED WITH HIGHS RIGHT AROUND SEASONAL NORMALS.
RIDGE OF HIGH PRESSURE WILL BRING QUIET CONDITIONS FOR MOST OF THE WEEK AHEAD. A STRONG RIDGE OF HIGH PRESSURE WILL PREVAIL OVER THE REGION THROUGH TUE NIGHT. THIS PUT READINGS IN THE LOWER TO MID 70S.
500 MB RIDGE NEAR CALGARY EARLY THIS MORNING. A SHORT WAVE DROPPING SOUTH AROUND THE RIDGE IS NEAR THE BRANDON MANITOBA AREA AND WILL DROP THRU CNTRL ND TODAY. MOSTLY NOW CENTERED RIGHT NEAR THE CENTER OF THE UPPER LOW OVER BRANDON. SKIES MAINLY CLEAR TONIGHT AND THEN ON TUESDAY A COLD FRONT WILL DROP SOUTH IN THE AFTN WITH A WIND SHIFT TO THE NORTH AND WIND SPEEDS INCREASING TO THE 20 TO 30 MPH RANGE IN THE RRV AND ERN ND. TEMPS IN NRN AREAS A BIT COOLER THAN TODAY WHILE SRN AREAS TO BE A BIT WARMER WITH LOW 70S.
06Z SFC DATA HAS A WEAK LOW OVER CENTRAL OHIO WITH A TROF RUNNING FROM THE LOW BACK INTO SOUTHWEST WISCONSIN.
THE WARMING TREND WILL CONTINUE AS SOUTHERLY FLOW ALOFT DEVELOPS BETWEEN AN UPPER RIDGE OVER THE INTERMOUNTAIN WEST AND AN UPPER TROUGH IN THE EASTERN PACIFIC. HIGH TEMPERATURES WILL BE 3-6 DEGREES WARMER TODAY AND ANOTHER 3-6 DEGREES WARMER ON TUESDAY. SOUTHEAST WINDS OF 5-15 MPH TUESDAY AFTERNOON WILL AID IN THE WARMING ACROSS THE TREASURE VALLEY WHERE AFTERNOON TEMPERATURES WILL LIKELY REACH INTO THE LOWER 80S. MOISTURE AHEAD OF THE APPROACHING PACIFIC TROUGH WILL LEAD TO A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN SE OREGON AND THE WEST CENTRAL MOUNTAINS OF SW IDAHO TUESDAY AFTERNOON.
DRY AND WARM CONDITIONS WILL CONTINUE ACROSS THE AREA TODAY AS A HIGH PRESSURE RIDGE PERSIST ACROSS THE REGION. A COLD FRONT WILL APPROACH THE AREA TODAY AND MOVE THROUGH THE REGION TUESDAY. A HIGH PRESSURE RIDGE EXTENDING ACROSS THE REGION WILL MAINTAIN CLEAR TO PARTLY CLOUDY SKIES ACROSS THE AREA TODAY. A WEAK COLD FRONT WILL APPROACH THE REGION TODAY AND MOVE ACROSS THE AREA ON TUESDAY.
THE UPPER RIDGE OVER THE PACIFIC NORTHWEST AND SOUTHWEST CANADA WILL GRADUALLY SHIFT EAST TODAY AND TONIGHT. NORTHEAST OREGON AND SOUTHEAST WASHINGTON WILL REMAIN FAIR AND DRY TODAY THROUGH TUESDAY MORNING DUE TO A DRY AIR MASS AND CONTINUED SUBSIDENCE ASSOCIATED WITH THE UPPER RIDGE.
AS THE REGION REMAINS SITUATED BETWEEN A MID-LEVEL SUBTROPICAL HIGH CENTERED ACROSS SOUTHERN MEXICO AND A LONGWAVE TROUGH EXTENDING FROM SOUTHEASTERN CANADA SOUTHWESTWARD INTO THE CENTRAL PLAINS. AS THE MID-MISSISSIPPI VALLEY TROUGH BEGINS TO PIVOT NORTHEASTWARD INTO THE OHIO VALLEY/SOUTHERN GREAT LAKES REGIONS TONIGHT. AND THIS SHOULD FINALLY PUSH THE COLD FRONT THROUGH THE FORECAST AREA BETWEEN 00-06Z. MOST OF THE REGION WILL REMAIN DRY AS COOLER TEMPS AND DEWPOINTS IN THE U40S/L50S WILL BE ADVECTED SOUTHWARD AS A MODIFIED PACIFIC AIRMASS BUILDS INTO THE REGION IN WAKE OF THE INITIAL FRONT.
804 AM EDT MON MAY 2 2016 HIGH PRESSURE WILL CONTINUE TO WEAKEN TODAY, WHICH WILL VEER THE WIND TO THE SOUTHEAST TODAY, THEN THE SOUTH TO SOUTHWEST TOMORROW. ALSO, WITH A COLD FRONT APPROACHING, AND A SOUTHWESTERLY FLOW BY TOMORROW NIGHT, HAVE ADDED SOME PATCHY FOG TO TOMORROW NIGHTS FORECAST FOR THE INTERIOR. HIGH PRESSURE IS WEAKENING, AND THE WIND WILL BE MORE SOUTHEASTERLY TODAY, AND BEGIN TURNING MORE SOUTHERLY BY TOMORROW MORNING. THE LOW LEVEL RIDGE OVER THE WESTERN ATLANTIC WILL CONTINUE IT SOUTH AND EASTWARD RETREAT AHEAD OF THE FRONTAL SYSTEM MOVING OVER THE SOUTHEASTERN US.
WINDS WILL THEN PICK UP BEHIND A COLD FRONT AT DHT AND GUY TUESDAY MORNING. THIS WILL ALLOW FOR WARMER MAX TEMPS COMPARED TO SUNDAYS VALUES.
703 AM CDT MON MAY 2 2016 While cooler/drier post-frontal air has overspread all of central & southeast Illinois since yesterday, the threat for a few showers will persist today. Forecast area remains on the southern side of a sheared upper-level trof that extends from eastern Canada into the southwestern United States. Otherwise, abundant cloud cover and cool northerly low-level flow support cooler than normal highs today, with most locations topping out in the 50s.
951 AM PDT MON MAY 2 2016 WEAK HIGH PRESSURE ALOFT WILL CREATE A SLIGHT WARMING TREND THROUGH TUESDAY.
CHATTANOOGA AIRPORT, TN 79 60 76 50 / 90 80 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 78 59 73 49 / 80 80 40 20 OAK RIDGE, TN 78 59 74 50 / 80 80 30 20 TRI CITIES AIRPORT, TN 78 58 72 47 / 80 90 60 40.
659 AM CDT MON MAY 2 2016 UPPER LEVEL LOW MOVING OVER THE TURTLE MOUNTAINS AT 1130Z. 500 MB RIDGE NEAR CALGARY EARLY THIS MORNING. A SHORT WAVE DROPPING SOUTH AROUND THE RIDGE IS NEAR THE BRANDON MANTIOBA AREA AND WILL DROP THRU CNTRL ND TODAY. MOSTLY NOW CENTERED RIGHT NEAR THE CENTER OF THE UPPER LOW OVER BRANDON. SKIES MAINLY CLEAR TONIGHT AND THEN ON TUESDAY A COLD FRONT WIL DROP SOUTH IN THE AFTN WITH A WIND SHIFT TO THE NORTH AND WIND SPEEDS INCREASING TO THE 20 TO 30 MPH RANGE IN THE RRV AND ERN ND. TEMPS IN NRN AREAS A BIT COOLER THAN TODAY WHILE SRN AREAS TO BE A BIT WARMER WITH LOW 70S.
748 AM EDT MON MAY 2 2016 AVIATION LOW PRESSURE MOVING ACROSS OHIO WILL QUICKLY MOVE EAST TO PENNSYLVANIA TODAY AND RAIN WILL END THIS MORNING AND THEN SKIES WILL BECOME PARTLY SUNNY.
1046 AM EDT MON MAY 2 2016 A COLD FRONT WILL APPROACH FROM THE WEST THIS AFTERNOON. WARMER AND MORE HUMID UNDER A PARTLY TO MOSTLY SUNNY SKY. BECOMING WARMER/MARGINALLY UNSTABLE UNDER A PARTLY SUNNY TO MOSTLY CLOUDY SKY. COLD FRONT FM THE WNW WILL BE SLOWLY APPROACHING THE CWA THIS AFTN/EARLY THIS EVENG.
FOR 12Z AVIATION DISCUSSION BELOW BAGGY HIGH PRESSURE OVER THE AREA WILL YIELD A DRY DAY.
1044 AM CDT MON MAY 2 2016 15Z SUBJECTIVE SURFACE ANALYSIS INDICATES A COLD FRONT FROM NORTHERN MISSISSIPPI.