Aikyam-Lab/Synoptic-Bench huggingface dataset:
The higher terrain of Glacier Park, the Swan Range and the Mission Mountains could see 6 to 8 inches of snow. The dramatic change to colder/moist conditions ends Saturday as high pressure returns and the air mass starts to warm.
Temps on Sat are expected to be about 10 degrees cooler than today over the southeast plains, with just slightly cooler temps ovr the rest of the forecast area.
Moisture will steadily increase with south-southeasterly low level flow tonight into Saturday as the upper low southwest of Laredo moves toward the Big Bend.
624 PM EDT FRI JUN 24 2016 A cold front sinking southward will move into the forecast area tonight. Temperatures will be slightly cooler behind the front over the weekend and it will be a little drier. A mid level cap may develop as upper level ridge builds slightly. although a few weak mid level short waves may rotate south from North Carolina around ridge. Temperatures slightly cooler behind the front although above mos guidance due to cool bias.
VFR conditions will prevail due to the dry low level airmass associated with this high. Winds will remain under 5 knots overnight and become southeast 5-10 knots on Saturday with return flow west of exiting high pressure.
158 PM EDT FRI JUN 24 2016 High pressure builds in from the north through this afternoon, and remains over the region through the weekend.
Overall upper level pattern we are expecting to see rising heights as upper level high begins pulling back to the east across.
124 PM MDT FRI JUN 24 2016 Upper level trough will continue to track across the northern Rockies today. An associated cold front will enter the far northwest portion of the CWA late this afternoon or early afternoon and slowly push south finally stalling over central part of the forecast area overnight. Gradient relaxes as the upper trough slides east Saturday expect less wind.
A dry cold front will continue to push into Central Utah tonight before stalling and washing out over the next 24 hours.
Surface wise, a splintered ridge is aligned across South Florida and the adjacent Atlantic and Gulf waters.
208 PM EDT FRI JUN 24 2016 A cold front sinking southward will move into the forecast area tonight. Temperatures will be slightly cooler behind the front over the weekend and it will be a little drier. Current expectation is for storms to form along the trough and further northwest in central NC then move southeastward into our area and possibly forming into multicellular clusters which develop their own coldpools which will enhance the damaging wind threat. A mid level cap may develop as upper level ridge builds slightly. although a few weak mid level short waves may rotate south from North Carolina around ridge. Temperatures slightly cooler behind the front although above mos guidance due to cool bias.
Later tonight, a Pacific cold front will push from west to east across West Central Texas and bring another round of thunderstorms. (Wednesday) The Pacific front will quickly push convection east of West Central Texas and bring drier air, along with slightly cooler temperatures.
1104 PM EDT TUE APR 26 2016 A COLD FRONT WILL PASS SOUTH OF PENNSYLVANIA THIS EVENING. A LARGE AREA OF HIGH PRESSURE OVER SOUTH CENTRAL CANADA WILL THEN RIDGE SOUTHEAST INTO PENNSYLVANIA TONIGHT AND WEDNESDAY WITH FAIR AND COOLER CONDITIONS.
QUIET DAY SO FAR ACROSS THE MID STATE WITH TEMPERATURES MAINLY IN THE LOW TO MID 80S. LONG STORY SHORT THE LOW LEVEL DYNAMICS ARE ON THE WEAKER SIDE.
1042 PM EDT TUE APR 26 2016 HIGH PRESSURE WILL REMAIN OFF THE SOUTHEAST COAST THROUGH WEDNESDAY.
1150 PM CDT TUE APR 26 2016 Isolated to scattered showers have started to develop across our northern counties in the warm unstable air south of a warm front. Models indicate the warm front will continue to meander near the Interstate 64 corridor into tonight. By late tonight, the eastward progression of a cold front will bring a surge of moisture/showers and thunderstorms into our western counties. The approach and passage of the cold front will keep widespread showers and storms across our entire region through the day Wednesday and into Wednesday evening.
WITH THE MORE AGGRESSIVE GUIDANCE ERODING THE WARMER TEMPS AT H8 SEEN ON THE KLCH 00Z RAOB AND MAINTAINING A ROBUST LINE OF CONVECTION. /ISSUED 348 PM CDT TUE APR 26 2016/ MID-AFTERNOON SFC ANALYSIS SHOWS HIGH PRESSURE CENTERED OFF THE MAINTAINING AN ONSHORE LOW-LEVEL FLOW ACROSS THE FORECAST AREA. WHILE WEAK RIDGING LINGERS CLOSER TO HOME. AS DISCUSSED EARLIER JUST A FEW SHOWERS ARE SHOWING UP ON RADAR OVER THE LOWER ATCHAFALAYA BASIN WHERE A LITTLE BETTER MOISTURE IS FOUND.
PARTICULARLY OVER THE HIGHER TERRAIN WHERE VISIBILITIES ARE STARTING TO DIP DOWN.
741 PM EDT TUE APR 26 2016 AVIATION A LARGE CANADIAN HIGH PRESSURE SYSTEM WILL CONTINUE TO PUSH COLD DRY AIR INTO THE AREA TONIGHT INTO WEDNESDAY EVENING.
703 PM CDT TUE APR 26 2016 Isolated to scattered showers have started to develop across our northern counties in the warm unstable air south of a warm front. Models indicate the warm front will continue to meander near the Interstate 64 corridor into tonight. By late tonight, the eastward progression of a cold front will bring a surge of moisture/showers and thunderstorms into our western counties. The approach and passage of the cold front will keep widespread showers and storms across our entire region through the day Wednesday and into Wednesday evening.
/ISSUED 336 PM EDT TUE APR 26 2016/ ZONAL FLOW ALOFT BECOMING MORE SOUTHWEST ON WEDNESDAY AS THE CENTRAL STATES TROUGH STARTS TO LIFT NORTHEAST. AND A COLD FRONT APPROACHES THE MS RIVER VALLEY.
1021 PM CDT TUE APR 26 2016 A COLD FRONT WILL PUSH THROUGH THE REGION OVERNIGHT WITH NORTHWEST WINDS OF 15 TO 22 KNOTS WITH HIGHER GUSTS. A COLD FRONT MOVES THROUGH OVERNIGHT WHICH WILL PICK THE WINDS UP FROM THE NORTHWEST AT AROUND 20 KNOTS WITH HIGHER GUSTS. THE UPPER LEVEL LOW THAT HAS BEEN DOMINATING OUR LATEST WEATHER PATTERNS CONTINUES TO PASS TO OUR NORTH WHILE PROVIDING AN ABUNDANCE OF STRONG AND GUSTY WINDS. A COLD FRONT IS ALSO MAKING ITS WAY THROUGH THE OKLAHOMA AND TEXAS PANHANDLES WHICH HAS PRODUCED A FEW SHOWERS AND THUNDERSTORMS.
VERY LITTLE CLOUD COVER AROUND CENTRAL ALABAMA DUE TO PRESENCE OF RELATIVELY DRIER AIR MASS AROUND WEST SIDE OF LOW LEVEL RIDGE OVER THE SOUTHEAST STATES. ISOLD SHWRS/TSTMS WILL LIKELY DEVELOP OVER SW ALABAMA BY EARLY AFTERNOON ALONG A WARM FRONT.
A DRY COLD FRONT WILL MOVE THROUGH THE AREA TUESDAY MORNING BRINGING A WIND SHIFT TO THE NORTHWEST AND RENEWING MODERATE BREEZES. A COLD FRONT SHOULD THEN PUSH THROUGH AROUND SUNRISE WEDNESDAY MORNING LEADING TO A QUITE PLEASANT DAY.
PRIMARY FORECAST CHALLENGE FOR THE SHORT TERM WILL BE TEMPERATURES AND POPS ACROSS THE FAR SOUTH AS A STACKED UPPER LOW WOBBLES OVER NEBRASKA ON WEDNESDAY. UPPER LOW WILL EJECT OUT OF SRN ROCKIES TONIGHT AND SHOULD BE OVR CNTRL NE BY 12Z WED. UPPER LOW OVER CNTRL PLAINS COMBINED WITH AN OPEN GULF WILL PUMP AMPLE MOISTURE INTO THE CENTRAL PLAINS. WITH THE LOW WOBBLING OVER NE FOR MOST OF WED AND WED NIGHT. SIMILAR SETUP TONIGHT WILL ALLOW TEMPS ACROSS THE NORTH TO DROP TO RIGHT AROUND OR JUST BELOW THE FREEZING MARK. UPPER LOW SHIFTS EAST ON THU AND PRECIP ACROSS THE FAR SOUTH WILL GRADUALLY DIMINISH.
CANADIAN HIGH PRESSURE WILL SETTLE IN THROUGH MIDWEEK.
633 PM CDT TUE APR 26 2016 FOCUS OF THE FORECAST TODAY HAS BEEN THE IMPENDING LOW PRESSURE SYSTEM AND WARM FRONT SITTING ON THE SOUTHERN PERIPHERY OF THE LOCAL FORECAST AREA. THIS LOW AND WARM FRONT HAS NOT MADE MUCH PROGRESS NORTHWARD AS SATELLITE IMAGERY CONTINUES TO SHOW LOW LEVEL CLOUDS WRAPPING AROUND THIS LOW ACROSS OUR LOCAL PORTIONS OF NORTH CENTRAL KANSAS. AS THE LOW THEN SHIFTS EAST ON WEDNESDAY. EXPECT COOLER AIR TO FILTER IN FROM THE NORTH AND FOR MORE ISOLATED THUNDERSTORM ACTIVITY ON THE BACKSIDE OF THE DEPARTING LOW.
A WET WEDNESDAY MORNING COMMUTE IS POSSIBLE AS A COLD FRONT MOVES THROUGH THE AREA. THE FINAL LOW LIGHT VISIBLE SATELLITE IMAGE WAS SHOWING HIGH CLOUDS PUSHING INTO NORTHERN AND CENTRAL CALIFORNIA AHEAD OF AND APPROACHING COLD FRONT. THE CURRENT SATELLITE WATER VAPOUR IMAGE SHOWS THE CENTER OF THE PARENT LOW PRESSURE SYSTEM CENTERED APPROXIMATELY 310 MILES OFF OF THE OREGON COAST. THE 2100Z SREF MODEL SLIDES THE COLD FRONT PORTION OF THE STORM INTO THE BAY AREA LATE TONIGHT EARLY WEDNESDAY MORNING. THE COLD FRONT COULD REACH THE MONTEREY AREA BY SUNRISE.
A N-S RIDGE AXIS PASSING ACRS THE MISS RIVER THIS EVE WILL SHIFT OFF TO THE E WHILE A SHARP DEEP TROF OVER THE ROCKIES PIVOTS AND MOVES INTO THE CENTRAL PLAINS. AS THIS TROF TRANSLATES EWD. MODELS HAVE AGAIN SLOWED THE EWD PROGRESSION OF THE RAIN SO HAVE SHOWN A MORE DELAYED ADVANCE OF THE HIGHER POPS FROM W TO E ACRS THE CWFA ON WED. BUT THE LARGE TROF ALOFT PLUS THE DEEP MOISTURE BEING ADVECTED INTO THE REGION FROM THE S WILL STEADILY WIN OUT. WITH THE HIGHEST AMOUNTS OVER SWRN MN. THE PERIOD BEGINS WITH THE SECOND IN A SERIES OF LOW PRESSURE SYSTEMS TO AFFECT THE REGION THIS WEEK LOCATED JUST SOUTH OF US WEDNESDAY NIGHT.
750 PM EDT TUE APR 26 2016 A COLD FRONT WILL PASS SOUTH OF PENNSYLVANIA THIS EVENING. A LARGE AREA OF HIGH PRESSURE OVER SOUTH CENTRAL CANADA WILL THEN RIDGE SOUTHEAST INTO PENNSYLVANIA TONIGHT AND WEDNESDAY WITH FAIR AND COOLER CONDITIONS.
CHATTANOOGA AIRPORT, TN 61 84 64 81 / 20 30 70 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 60 81 63 81 / 20 40 60 50 OAK RIDGE, TN 61 81 63 81 / 30 40 60 40 TRI CITIES AIRPORT, TN 55 79 59 79 / 30 50 50 50.
/ISSUED 738 PM EDT TUE APR 26 2016/ HIGH PRESSURE FROM THE WESTERN ATLANTIC TO ACROSS CENTRAL FLORIDA WILL PROVIDE A LOW LEVEL EASTERLY FLOW THROUGH THE FORECAST PERIOD. ALTHOUGH THE AIR MASS IS MAINLY DRY, THERE'S JUST ENOUGH MOISTURE IN THE LOW LEVELS FOR ISOLATED SHOWERS OVER THE INTERIOR AND WESTERN SECTIONS OF THE PENINSULA EARLY THIS EVENING DUE TO GULF SEA BREEZE INTERACTION. FAIRLY STRONG HIGH PRESSURE WILL KEEP A GENERALLY EASTERLY FLOW OVER THE CWA, WITH THE SEA AND LAKE BREEZES TRYING TO DEVELOP EACH AFTERNOON.
DIURNAL HEATING WILL DISRUPT THE LOW LEVEL WINDS DURING THE DAY WITH AND SKIES WILL REMAIN MOSTLY CLEAR THROUGH THE SHORT TERM.
937 PM EDT TUE APR 26 2016 BUILDING HIGH PRESSURE WILL RESULT IN A DRY WEDNESDAY.
/ISSUED 650 PM CDT TUE APR 26 2016/ QUIET DAY SO FAR ACROSS THE MID STATE WITH TEMPERATURES MAINLY IN THE LOW TO MID 80S. LONG STORY SHORT THE LOW LEVEL DYNAMICS ARE ON THE WEAKER SIDE.
LOWS WILL GENERALLY BE IN THE LOW TO MID 60S. RIDGE AXIS SETTLES FARTHER SOUTH AND ACROSS THE AREA TONIGHT INTO WEDNESDAY WITH WINDS GENERALLY OUT OF THE SOUTHEAST AND LESS THAN 15 KNOTS.
739 PM EDT TUE APR 26 2016 HIGH PRESSURE WILL REMAIN OFF THE SOUTHEAST COAST THROUGH WEDNESDAY.
744 PM EDT TUE APR 26 2016 COLD FRONT PUSHING THROUGH NORTHEAST PA THIS AFTERNOON AS AREA OF LOW PRESSURE MOVES TOWARDS THE COAST. NORTHWEST FLOW ALOFT WILL KEEP THE AREA SLIGHTLY COOLER THAN NORMAL.
HIGH PRESSURE IN FAR NORTHERN ONTARIO HAS PUSHED DRIER AIR INTO THE REGION. THE PREVAILING THOUGHT OVER THE LAST COUPLE OF DAYS WAS THAT THE NEXT PLAINS LOW PRESSURE SYSTEM WOULD TRACK BY TO OUR SOUTH WITH LITTLE FANFARE ACROSS OUR NECK OF THE WOODS (EXCEPT FOR PERHAPS SOME CLOUDINESS). THIS IS DESPITE THE BLOCKING UPPER LEVEL RIDGE TO OUR NORTH WHICH APPEARS TO HOLD ITS GROUND.
725 PM EDT TUE APR 26 2016 COLD FRONT MOVING INTO CENTRAL OHIO AND SOUTHWEST PA WILL REACH THE OHIO RIVER VALLEY OVERNIGHT. HIGH PRESSURE WILL RIDGE INTO THE AREA FROM CENTRAL CANADA ON WEDNESDAY.
1102 PM EDT TUE APR 26 2016 A COLD FRONT WILL PASS SOUTH OF PENNSYLVANIA THIS EVENING. A LARGE AREA OF HIGH PRESSURE OVER SOUTH CENTRAL CANADA WILL THEN RIDGE SOUTHEAST INTO PENNSYLVANIA TONIGHT AND WEDNESDAY WITH FAIR AND COOLER CONDITIONS.
937 PM EDT TUE APR 26 2016 COLD FRONT MOVING INTO CENTRAL OHIO AND SOUTHWEST PA WILL REACH THE OHIO RIVER VALLEY OVERNIGHT. HIGH PRESSURE WILL RIDGE INTO THE AREA FROM CENTRAL CANADA ON WEDNESDAY.
756 PM EDT TUE APR 26 2016 A COLD FRONT WILL PASS SOUTH OF PENNSYLVANIA THIS EVENING. A LARGE AREA OF HIGH PRESSURE OVER SOUTH CENTRAL CANADA WILL THEN RIDGE SOUTHEAST INTO PENNSYLVANIA TONIGHT AND WEDNESDAY WITH FAIR AND COOLER CONDITIONS.
MODEL CONSENSUS IS FOR THE UPPER LOW OVER COLORADO TO ELONGATE WITH THE NORTHERN PORTION FILLING OVERNIGHT AND TOMORROW WHILE A SOUTHERN CENTER INTENSIFIES AND SCOOTS INTO KANSAS. AT THE SURFACE WE ARE BEHIND A COLD FRONT AND NORTHERLY FLOW WILL CONTINUE. LATER TONIGHT BEHIND THE ELONGATED TROUGH DOWNSLOPE FLOW IS EXPECTED TO BECOME ESTABLISHED. OVER THE MOUNTAINS THE NEXT SYSTEM WILL ALREADY BEGIN TO AFFECT THE STATE WITH INCREASING SHOWERS SPREADING ACROSS THE HIGH COUNTRY ON WEDNESDAY AFTERNOON.
708 PM CDT TUE APR 26 2016 SATELLITE SHOWING QUITE AN EXPANSIVE FIELD OF STRATOCUMULUS ACROSS THE REGION AS MOISTURE WAS TRAPPED UNDER MID-LEVEL RIDGE AND SUBSIDENCE. LOOKING FOR LOWS IN THE LOWER/MIDDLE 30S ACROSS NORTH CENTRAL WI AND IN THE UPPER 30S/LOWER 40S ELSEWHERE ACROSS THE FORECAST AREA. PLAN ON SHIELD OF RAIN MOVING SLOWLY NORTHEAST INTO THE AREA FOR WEDNESDAY AS THE AREA OF LOW PRESSURE BECOMES VERTICALLY STACKED WITH MID-LEVEL LOW AND PUSHES INTO SOUTHWEST IA. CONVEYER BELT RAIN WRAPPED AHEAD OF THE LOW WILL BE IMPEDED BY DRY NORTHEASTERLY SURFACE FLOW AROUND HUDSON BAY HIGH. RAIN LOOKS TO OVERSPREAD PRETTY MUCH REST OF THE AREA WEDNESDAY NIGHT AS THE LOW CONTINUES TO TRACK NORTHEAST INTO THE AREA WHILE SLOWLY FILLING.
TWEAKED THE HOURLY VALUES TO ACCOUNT FOR THE SLIGHTLY WARMER TEMPERATURES. BUT A BRIEF PERIOD OF LIGHT TO CALM WINDS AND TEMPERATURES SHOULD FALL INTO THE LOWER TO MID 60S.
1044 PM EDT TUE APR 26 2016 A RIDGE OF HIGH PRESSURE BUILDING SOUTHEAST FROM CANADA WILL BRING MOSTLY CLEAR SKIES TO THE NORTH COUNTRY OVERNIGHT. A WARMING TREND WILL TAKE PLACE FOR THE LATER PART OF THIS WEEK AND DRY WEATHER IS EXPECTED TO CONTINUE RIGHT INTO THE WEEKEND AS HIGH PRESSURE PREVAILS OVER THE REGION. PRONOUNCED CLEARING IS NOW TAKING PLACE ON THE BACKSIDE OF THE UPPER TROUGH WITH CLEAR SKIES JUST ENTERING THE SAINT LAWRENCE VALLEY. NORTHWEST FLOW ALOFT WILL EXIST OVER THE REGION IN RESPONSE TO LARGE UPPER LOW OVER EASTERN CANADA. THE DOMINATE UPPER LEVEL CLOSED LOW OVER THE CANADIAN MARITIMES WILL CONTINUE TO REINFORCE NORTHERLY FLOW ACROSS THE NORTH COUNTRY IN THE MID WEEK.
947 PM EDT TUE APR 26 2016 A WEAK AREA OF LOW PRESSURE WILL CONTINUE TO EXIT OFF THE SOUTHERN NEW ENGLAND COAST THIS EVENING. CANADIAN HIGH PRESSURE THEN SETTLES IN THROUGH MIDWEEK.
BUT THE CLOUDS AND EAST WINDS HAVE KEPT TEMPS A BIT WARMER THAN EXPECTED. PRIMARY FORECAST CHALLENGE FOR THE SHORT TERM WILL BE TEMPERATURES AND POPS ACROSS THE FAR SOUTH AS A STACKED UPPER LOW WOBBLES OVER NEBRASKA ON WEDNESDAY. UPPER LOW WILL EJECT OUT OF SRN ROCKIES TONIGHT AND SHOULD BE OVR CNTRL NE BY 12Z WED. UPPER LOW OVER CNTRL PLAINS COMBINED WITH AN OPEN GULF WILL PUMP AMPLE MOISTURE INTO THE CENTRAL PLAINS. WITH THE LOW WOBBLING OVER NE FOR MOST OF WED AND WED NIGHT. SIMILAR SETUP TONIGHT WILL ALLOW TEMPS ACROSS THE NORTH TO DROP TO RIGHT AROUND OR JUST BELOW THE FREEZING MARK. UPPER LOW SHIFTS EAST ON THU AND PRECIP ACROSS THE FAR SOUTH WILL GRADUALLY DIMINISH.
1246 AM EDT WED APR 27 2016 BUILDING HIGH PRESSURE WILL RESULT IN A DRY WEDNESDAY.
A COLD FRONT WILL MOVE THROUGH THE AREA WEDNESDAY MORNING. A DRY COLD FRONT WILL MOVE THROUGH THE AREA TUESDAY MORNING BRINGING A WIND SHIFT TO THE NORTHWEST AND RENEWING MODERATE BREEZES. A COLD FRONT SHOULD THEN PUSH THROUGH AROUND SUNRISE WEDNESDAY MORNING LEADING TO A QUITE PLEASANT DAY.
738 PM EDT TUE APR 26 2016 HIGH PRESSURE FROM THE WESTERN ATLANTIC TO ACROSS CENTRAL FLORIDA WILL PROVIDE A LOW LEVEL EASTERLY FLOW THROUGH THE FORECAST PERIOD. ALTHOUGH THE AIR MASS IS MAINLY DRY, THERE'S JUST ENOUGH MOISTURE IN THE LOW LEVELS FOR ISOLATED SHOWERS OVER THE INTERIOR AND WESTERN SECTIONS OF THE PENINSULA EARLY THIS EVENING DUE TO GULF SEA BREEZE INTERACTION. FAIRLY STRONG HIGH PRESSURE WILL KEEP A GENERALLY EASTERLY FLOW OVER THE CWA, WITH THE SEA AND LAKE BREEZES TRYING TO DEVELOP EACH AFTERNOON.
COLD FRONT MOVES ACROSS THE MISSISSIPPI RIVER WEDNESDAY EVENING SO AM EXPECTING STORMS TO BECOME MORE NUMEROUS IN THE MID STATE AS FRONT GETS CLOSER WITH STRONG TO SEVERE POTENTIAL HIGHER OVER WESTERN AREAS OF THE MID STATE.
JUST A FEW ISOLD SHOWERS/SPRINKLES POSSIBLE OVER INLD SE GA AND THE SUWANNEE RIVER VALLEY WITH LAST OF SEA BREEZE MERGER UNTIL AROUND 11PM THEN FAIR SKIES AND QUIET OVERNIGHT WITH LOWS IN THE LOWER 60S INLAND AND MID/UPPER 60S ALONG THE COAST. MAX TEMPS WILL SURGE INTO THE MID/UPPER 80S OVER INLAND AREAS WHILE SELY SEA BREEZE ALONG THE COAST WILL KEEP HIGHS THERE IN THE LOWER 80S.
AN APPROACHING UPPER TROUGH WILL INCREASE CLOUDS ACROSS THE AREA AND KEEP A CHANCE OF SHOWERS OVER THE MOUNTAINS OF EAST-CENTRAL OREGON AND WEST-CENTRAL IDAHO OVERNIGHT. AS THE TROUGH DIGS THROUGH CA ON WEDNESDAY THE FOCUS OF SHOWER AND ISOLATED THUNDERSTORMS WILL REMAIN OVER THE MOUNTAINS.
A LOW PRESSURE SYSTEM OVER THE E PAC WILL CONTINUE TO USHER MOISTURE INTO OR/WA OVERNIGHT.
A PREFRONTAL TROUGH/DRY LINE WILL SWING THE WINDS AROUND FROM THE SOUTHEAST TO THE SOUTH. THE HIGH RESOLUTION MODELS HAVE A LINE OF SHOWERS AND THUNDERSTORMS ALONG THE PREFRONTAL TROUGH. THE HIGH RESOLUTION MODELS HAVE BETTER SHOWER AND THUNDERSTORM CHANCES FROM KCLL AND KUTS SOUTH TO ABOUT KIAH. OTHERWISE RAIN CHCS RETURN TO THE FCST FRI (IN RESPONSE TO THE NEXT UPPER TROF/LOW DIGGING AOA THE FOUR CORNERS).
1151 PM EDT TUE APR 26 2016 AVIATION A LARGE CANADIAN HIGH PRESSURE SYSTEM WILL CONTINUE TO PUSH COLD DRY AIR INTO THE AREA TONIGHT INTO WEDNESDAY EVENING.
THE ATMOSPHERE ACROSS THE SOUTHERN APPALACHIAN REGION IS STILL RELATIVELY STABLE EARLY THIS EVENING WITH MOSTLY CLEAR SKIES UNDER THE INFLUENCE OF A RIDGE OF HIGH PRESSURE. SOME OF THE ACTION BUILDING EAST SOUTHEAST THROUGH THE LOWER OHIO VALLEY OVER WESTERN KENTUCKY MAY DRIFT ACROSS THE CENTRAL APPALACHIANS TOWARD MORNING IN A MUCH WEAKER STATE. THE AREA OF LOW PRESSURE DRIVING CONVECTION ACROSS THE MIDWEST WILL SHIFT A LITTLE FARTHER EAST DURING THE NEXT 24 HOURS WHICH WILL RESULT IN ADVECTION OF DEEPER MOISTURE WITH DECREASING STABILITY.
A cold front near I-72 will accelerate southward across southeast IL by early this evening.
941 PM EDT TUE APR 26 2016 A COLD FRONT IS SLOWLY CROSSING THE AREA FROM THE NORTH.
A COLD FRONT MOVES THROUGH OVERNIGHT WHICH WILL PICK THE WINDS UP FROM THE NORTHWEST AT AROUND 20 KNOTS WITH HIGHER GUSTS. THE UPPER LEVEL LOW THAT HAS BEEN DOMINATING OUR LATEST WEATHER PATTERNS CONTINUES TO PASS TO OUR NORTH WHILE PROVIDING AN ABUNDANCE OF STRONG AND GUSTY WINDS. A COLD FRONT IS ALSO MAKING ITS WAY THROUGH THE OKLAHOMA AND TEXAS PANHANDLES WHICH HAS PRODUCED A FEW SHOWERS AND THUNDERSTORMS.
709 PM EDT TUE APR 26 2016 HIGH PRESSURE IN CONTROL WILL KEEP SKIES MOSTLY CLEAR IN THE SHORT TERM. THIS WILL ALLOW FOR GOOD RADIATIONAL COOLING AND LOW TEMPS INTO THE LOW 20S OVER THE INTERIOR CENTRAL AND W. HIGHS ON WED WILL BE COOLEST NEAR LAKE SUPERIOR (DUE TO LIGHT NE WINDS) WITH HIGHS IN THE LOW TO MID 40S.
910 PM EDT TUE APR 26 2016 A COLD FRONT IS SLOWLY CROSSING THE AREA FROM THE NORTH.
1259 AM EDT WED APR 27 2016 COLD FRONT SINKS SOUTH INTO AREA TONIGHT.
1121 PM CDT TUE APR 26 2016 WATER VAPOR IMAGERY SHOWS A NEARLY STATIONARY UPPER LEVEL LOW OVER EASTERN WYOMING THIS EVENING. WITH A SECONDARY DISTURBANCE MOVING AROUND THIS LOW AND LIFTING INTO WESTERN KANSAS.
AN UPPER LOW WILL CONTINUE TO MOVE SLOWLY EAST AND OUT OF UTAH LATE TONIGHT.
847 PM EDT TUE APR 26 2016 HIGH PRESSURE WILL REMAIN OFF THE SOUTHEAST COAST THROUGH WEDNESDAY.
854 PM EDT TUE APR 26 2016 COLD FRONT PUSHING THROUGH NORTHEAST PA THIS AFTERNOON AS AREA OF LOW PRESSURE MOVES TOWARDS THE COAST. NORTHWEST FLOW ALOFT WILL KEEP THE AREA SLIGHTLY COOLER THAN NORMAL.
655 PM CDT TUE APR 26 2016 A cold front near I-72 will accelerate southward across southeast IL by early this evening.
REMAINS PARKED OVER THESE AREAS A 2ND UPPER LOW WILL DEVELOP OVER SRN KS. WITH THE LOWER-DECK FLOW SLOWLY BACKING. LIFTS NNE THE WARM FRONT EXTENDING E FROM THE LOW WOULD LIFT ALMOST DUE N. REACHING I-70 LATE THIS EVE BY WHICH TIME A PACIFIC COLD FRONT WOULD PUSH ESE. UNSETTLED WEATHER CONTINUES OVER THE WEEKEND AS THE VIGOROUS MID TO UPPER TROUGH MOVES OUT OF THE ROCKIES AND INTO THE CENTRAL AND NORTHERN PLAINS. MAINTAINED MID-HIGH POPS THROUGH THE WEEKEND AS A SERIES OF SMALLER SCALE IMPULSES MOVE THROUGH THE MEAN MID/UPPER TROUGH PROGGED TO REMAIN CAMPED ACROSS THE CENTRAL CONUS AREA. AS THE LOW LIFTS N WRAP-ARND CIGS ~1,500FT WL SPREAD SE ACRS KRSL & KGBD 05Z-07Z W/ CIGS QUICKLY LWR'G INTO IFR COUNTRY.
725 PM EDT TUE APR 26 2016 BUILDING HIGH PRESSURE WILL DRY WEDNESDAY.
/ISSUED 348 PM CDT TUE APR 26 2016/ MID-AFTERNOON SFC ANALYSIS SHOWS HIGH PRESSURE CENTERED OFF THE MAINTAINING AN ONSHORE LOW-LEVEL FLOW ACROSS THE FORECAST AREA. WHILE WEAK RIDGING LINGERS CLOSER TO HOME. AS DISCUSSED EARLIER JUST A FEW SHOWERS ARE SHOWING UP ON RADAR OVER THE LOWER ATCHAFALAYA BASIN WHERE A LITTLE BETTER MOISTURE IS FOUND.
1133 PM CDT TUE APR 26 2016 SATELLITE SHOWING QUITE AN EXPANSIVE FIELD OF STRATOCUMULUS ACROSS THE REGION AS MOISTURE WAS TRAPPED UNDER MID-LEVEL RIDGE AND SUBSIDENCE. LOOKING FOR LOWS IN THE LOWER/MIDDLE 30S ACROSS NORTH CENTRAL WI AND IN THE UPPER 30S/LOWER 40S ELSEWHERE ACROSS THE FORECAST AREA. PLAN ON SHIELD OF RAIN MOVING SLOWLY NORTHEAST INTO THE AREA FOR WEDNESDAY AS THE AREA OF LOW PRESSURE BECOMES VERTICALLY STACKED WITH MID-LEVEL LOW AND PUSHES INTO SOUTHWEST IA. CONVEYER BELT RAIN WRAPPED AHEAD OF THE LOW WILL BE IMPEDED BY DRY NORTHEASTERLY SURFACE FLOW AROUND HUDSON BAY HIGH. RAIN LOOKS TO OVERSPREAD PRETTY MUCH REST OF THE AREA WEDNESDAY NIGHT AS THE LOW CONTINUES TO TRACK NORTHEAST INTO THE AREA WHILE SLOWLY FILLING.
/Issued 407 AM CDT MON JUL 11 2016/ An upper ridge will remain the dominant feature over our area for most of the forecast period.
Lingering moisture behind the departing upper trough will lead to isolated showers in the West Central Mountains through this afternoon. Temperatures will be 10-15 degrees warmer, but still well below normal.
Inland areas will see daytime temperatures above normal late in the week as high pressure strengthens over the region. A slight cooling trend is then forecast for the upcoming weekend as an upper level trough pushes inland over the Pacific Northwest. Latest satellite imagery shows the low clouds over the Monterey Bay made it in to Salinas this morning but are already on the retreat. A gradual warming trend is forecast to being today and persist through late week as an upper level ridge builds across the region. The forecast models then drop another mid/upper level trough out of the Gulf of Alaska and into the Pacific Northwest for the upcoming weekend.
A cooler but dry airmass will settle into the area today. Temperatures behind the front are much cooler than yesterday, with maxes expected to run 10F cooler than yesterday over northern Utah (15F below seasonal norms) and about 5F cooler than yesterday over southern Utah. Weak ridging tomorrow will allow for a quick rebound in temperatures, with highs approaching climo for most of the forecast area.
1058 AM CDT MON JUL 11 2016 A weak upper low remains over the area. in the low to middle 70s under partly cloudy skies. a weak ridge is in place across the Eastern half of the Nation. with a shallow trough over the Northern Rockies. Beneath the weak ridge over the East. High temperatures should be slightly warmer tomorrow as heights rise and we expect less cloud cover. Temperatures should be near normal with highs in the low 90s and lows in the low to middle 70s.
746 AM EDT MON JUL 11 2016 High pressure overhead will slide to the east through mid-week Dry weather and low humidity will start the week. The middle of the week looks unsettled as the low level flow becomes southerly. Tranquil conditions prevail early this morning across the forecast area as high pressure remains the main player in our local weather today. as high pressure drifts east from the Ohio Valley and Upper Great Lakes region.
/issued 534 AM CDT MON JUL 11 2016/ A weak trough continues to be in place across the region. On Tuesday, it looks like the majority of the region should stay dry, as the upper trough begins to lift out.
927 AM EDT MON JUL 11 2016 High pressure over the area will move slowly east through Tuesday. A warm front will lift northeast across the area Tuesday.