Aikyam-Lab/Synoptic-Bench huggingface dataset:
539 PM CST MON NOV 30 2015 MAIN IMPACT WILL BE THE POSSIBILITY OF FREEZING FOG TONIGHT. /ISSUED 421 PM CST MON NOV 30 2015/ A WEAK COLD FRONT HAS MOVED THROUGH OUR FORECAST AREA TODAY. DESPITE THE LOWER DEW POINTS. A FREEZING FOG ADVISORY MAY BE NEEDED FOR SOME PARTS OF WESTERN/CENTRAL OKLAHOMA AND MAYBE WESTERN NORTH TEXAS BY MORNING. IT IS POSSIBLE THAT THERE COULD BE SOME FREEZING/FROZEN PRECIPITATION ALONG OUR NORTHERN BORDER.
A LOW PRESSURE SYSTEM WILL PASS OVER NORTHERN CALIFORNIA BY THIS EVENING.
308 PM MST MON NOV 30 2015 RESIDUAL WRAP AROUND MOISTURE FROM THE CLOSED LOW NOW CENTERED OVER CENTRAL NEBRASKA CONTINUES TO BRING SNOW SHOWERS AND FLURRIES TO MANY MOUNTAIN TOWNS IN WESTERN COLORADO. CONDITIONS WILL GRADUALLY CLEAR THIS EVENING AS DRIER STABLE AIR FILTERS INTO THE LOW LEVELS. WARM ADVECTION ALOFT BEGINS CONTINUES AS A RIDGE BUILDS IN FROM THE WEST.
THE PERSISTENT PATTERN WE HAVE BEEN IN FOR SEVERAL DAYS IS FINALLY ABOUT TO SHIFT AS A LARGE TROUGH OVER THE PLAINS BEGINS TO MOVE EASTWARD. IN RESPONSE TO THIS APPROACHING TROUGH. LOW PRESSURE HAS DEVELOPED TO THE NORTH OF THE FRONT THAT WAS MOVING INTO NORTHWEST ALABAMA THIS MORNING.
958 PM CST MON NOV 30 2015 Temperatures continue to cool this evening, with most of the CWA in the low to mid 40s. The limiting factor for fog development will be the high clouds streaming across the region. Minor changes were made to the min temperatures tonight, lowering a few areas down to near the freezing mark.
1001 PM EST MON NOV 30 2015 RAIN CHANCES WILL SLOWLY INCREASE TODAY AS LOW PRESSURE APPROACHES THE REGION.
HIGH PRESSURE WILL GRADUALLY BUILD OVER THE REGION THROUGH MID WEEK. THE FINAL WEAK SHORT WAVE DROPPING SOUTH AROUND THE DEPARTING UPPER LOW IS CROSSING NERN UT AT THIS TIME AND WILL BE HEADING OUT OF THE FORECAST AREA AFTER MIDNIGHT. THE LOW LEVELS ARE JUST A LITTLE TOO DRY AND WE WILL LIKELY HAVE TO WAIT UNTIL THE INVERSIONS BECOME MORE ESTABLISHED AND START MOISTENING UP BEFORE MUCH FOG AND STRATUS DEVELOPS OUTSIDE OF THESE AREAS. THE UPPER RIDGE TO OUR WEST MOVES INLAND TOMORROW AND OVERHEAD ON WED WARMING THE AIRMASS ALOFT AND KEEPING SKIES MOSTLY CLEAR.
ASHLEY AND MOBRIDGE AT 00 UTC. UPPER LEVEL LOW CONTINUES TO PASS OVER CENTRAL NEBRASKA. UPPER LOW WILL SHIFT TO AN EAST/NORTHEASTERLY TRACK AND PASS OVER FAR SOUTHEASTERN SOUTH DAKOTA TONIGHT. SNOW WILL CONTINUE TO DEVELOP OVER THE NORTHERN SIDE OF THE LOW WITH BROAD COVERAGE DEVELOPING INTO SOUTHERN PORTIONS OF THE AREA IN LINE WITH GOING WINTER WEATHER ADVISORY. COOLER TEMPERATURES EXPECTED OVERNIGHT WITH LATEST GUIDANCE CONTINUING TO INDICATE THE POSSIBILITY OF FOG DEVELOPING. SNOW WILL START TO GRADUALLY DIMINISH FROM WEST TO EAST THROUGH THE MORNING INTO THE AFTERNOON HOURS AS UPPER LOW SHIFTS EAST MAINLY ALONG THE IOWA/MINNESOTA BORDER.
1021 PM EST MON NOV 30 2015 CURRENTLY - A WEAK RIDGE EXTENDS ACROSS THE SOUTHEASTERN UNITED STATES. THE MORE VEERED FLOW HAS BROUGHT DEW POINTS INTO THE LOW TO MID 70S. GENTLE TO MODERATE NORTHEAST TO EAST FLOW WILL PREVAIL ON KEYS WATERS THROUGH THE OVERNIGHT PERIOD DUE TO A WEAK RIDGE ACROSS THE SOUTHEASTERN UNITED STATES.
708 PM EST MON NOV 30 2015 AN UPPER LOW OVER THE PLAINS STATES WILL SLIDE ACROSS THE GREAT LAKES THROUGH MIDWEEK.
WITH SOME LOWER DESERT AREAS DIPPING BELOW FREEZING.
DOWNSLOPING WESTERLY AND NORTHWESTERLIES ARE ALSO INCREASING OVER THE HIGH COUNTRY FROM THE DIVIDE EASTWARD THROUGH THE FOOTHILLS ONTO THE ADJACENT PLAINS.
531 PM CST MON NOV 30 2015 UPPER LEVEL LOW PRESSURE IS CENTERED ACROSS CENTRAL NEBRASKA THIS AFTERNOON. THE LOW SHOULD BE CENTERED ACROSS NORTHEAST NEBRASKA BY TUESDAY MORNING. LIGHT SNOW WILL CONTINUE THROUGH MUCH OF THE NIGHT ALONG AND NORTH OF INTERSTATE 80 ON THE BACK SIDE OF THE LOW. AS MOIST NORTH TO NORTHEAST FLOW /TROWAL/ FAVORS SNOW IN THE UPSLOPE AREA OF THE PINE RIDGE IN NORTHERN PORTIONS OF THE COUNTY. ON TUESDAY THE WEAKENING TROWAL SHIFTS EAST OVER BOYD AND HOLT COUNTY AS THE UPPER LOW MOVES EAST. AS THE CYCLONE MAKES ITS WAY TO THE UPPER MISSISSIPPI VALLEY.
EXPECTING TO SEE A SLIGHT INCREASE IN SHRA ACTIVITY BY THE AFTERNOON HOURS AS THE UPPER TROF AXIS AND MOISTURE CONVERGENCE BECOMES MORE DEFINED OVER THE REGION.
FURTHER SATURATION OVERNIGHT WITH TEMPERATURES NEAR OR JUST BELOW FREEZING SHOULD LEAD TO MORE WIDESPREAD FOG. SLIGHTLY WARMER SOUTH COMPARED TO NORTH WHERE A WEAK SURFACE FRONTAL BOUNDARY WILL BE EDGING SOUTHWARD LATE IN THE DAY.
721 PM EST MON NOV 30 2015 STATIONARY FRONT RETURNS AS A WARM FRONT LATER TONIGHT.
548 PM CST MON NOV 30 2015 12Z UA ANALYSIS HAS AN 850MB LOW IN SOUTHERN KANSAS WITH AN 850MB WARM FRONT RUNNING FROM THE LOW INTO CENTRAL IOWA. LARGE AMOUNTS OF MOISTURE RAN FROM THE GULF COAST INTO THE LOWER MISSOURI AND OHIO VALLEYS. 18Z SFC DATA HAS A LOW JUST SOUTH OF KOMA WITH A FRONTAL BOUNDARY RUNNING SOUTH FROM THE LOW INTO EASTERN OKLAHOMA.
PERSISTENT WEATHER TO CONTINUE THROUGH TUESDAY NIGHT BEFORE A PACIFIC TROUGH COMES INLAND.
STRONG DIFFLUENT FLOW CONTINUES AHEAD OF THE LOW. CLOSED LOW WILL TRACK SLOWLY EWD/NEWD. MOISTURE WILL CONTINUE TO WRAP AROUND THE BACKSIDE OF THE LOW AND CAUSE SOME LIGHT SNOW EVEN INTO TUE NIGHT. OUR AREA WILL BE IN NORTHWEST FLOW ALOFT AS THAT CLOSED LOW TRACKS NEWD AND A RIDGE BUILDS IN FROM THE WEST. A TROUGH WILL BE LOCATED OVER NM BY SAT. GIVEN PATH OF UPPER LOW.
/ISSUED 307 PM CST MON NOV 30 2015/ CLOSED UPPER LOW OVER THE CENTRAL PLAINS STATES WILL CONTINUE TO LIFT NORTH AND EAST TOWARDS THE GREAT LAKES THROUGH MID WEEK.
525 PM CST MON NOV 30 2015 THE SFC AND UPPER LOW HAVE TRACKED INTO NORTHEASTERN NEBRASKA THIS AFTERNOON TAKING MOST OF THE ACCUMULATING SNOW NORTHEAST WITH THE SYSTEM. A FEW LIGHTER SNOW BANDS CONTINUE TO DEVELOP ACROSS OUR NORTHERN FORECAST AREA AND THEN ROTATE EAST AND NORTHEAST AROUND THE LOW. SFC TEMPERATURES ARE PRETTY CLOSE TO OR JUST BELOW FREEZING IN MOST AREAS AND THUS MOST OF ANY SNOW THIS AFTERNOON HAS BEEN MELTING ON PAVED SURFACES. THE LOW WILL TRACK FURTHER AWAY INTO SOUTHERN MINNESOTA RESULTING IN DRY CONDITIONS FOR MOST OF THE FORECAST AREA. HIGHS WILL CONTINUE TO STRUGGLE TO REACH THE FREEZING MARK ALONG AND NORTH OF I-80 WITH MID 30 FOR HIGHS OVER NORTH CENTRAL KANSAS.
526 PM CST MON NOV 30 2015 Drier air in the lower levels will continue to advect in from the west this evening and result in eventual scouring out of low ceilings, at least across eastern Ok.
1019 PM EST MON NOV 30 2015 HIGH PRESSURE OVER THE NEW ENGLAND COAST WILL CONTINUE TO DRIFT SLOWLY EAST. LOW PRESSURE WILL DEVELOP OVER THE CENTRAL PLAINS AND STRENGTHEN AS IT MOVES INTO THE WESTERN GREAT LAKES BY TUESDAY NIGHT.
559 PM CST MON NOV 30 2015 Initial batch of light rain has exited the forecast area early this afternoon, however some patches of drizzle were persisting in the low stratus. Have concentrated the highest PoP's into this evening across areas west of I-55 and increased them somewhat. Latest water vapor imagery showing large upper low centered over Nebraska this afternoon. Dry slot is spreading northeast out of Oklahoma and Kansas, and marks the back edge of the precipitation shield along the cold front. Latest RAP guidance suggests the cold front moving into areas near the Illinois River in the 2-3 am time frame, reaching the Indiana border toward 6 am. The slow moving upper low is forecast to be located over extreme northwest Iowa Tuesday morning with a well defined dry slot pushing into southwest Illinois.
1025 PM EST MON NOV 30 2015 A WARM FRONT WILL LIFT NORTH ACROSS THE AREA THIS EVENING BEFORE A COLD FRONT PUSHES EAST ACROSS THE OHIO VALLEY TUESDAY.
SOME LIFT FOR SCATTERED CONVECTION ALONG BASE OF MID LVL TROUGH MOVG ACROSS NE TX. /ISSUED 232 PM CST MON NOV 30 2015/ 700MB TROUGH STILL WEST OF THE REGION ALLOWING FOR CONTINUED CLOUD COVER AND DRIZZLE AREAWIDE. TROUGH SHOULD PUSH EAST OF THE REGION ALLOWING FOR CLEARING CONDITIONS FROM THE NORTHWEST ALONG THE INTERSTATE 30 CORRIDOR BEGINNING BY DAYBREAK TUESDAY. TEMPERATURES TO FALL INTO THE LOW TO MID 40S ACROSS MOST LOCATIONS.
An upper trough will also swing across the Central Plains with some colder air moving into the area just east and north of Dodge City.
703 PM EST MON NOV 30 2015 A WARM FRONT WILL LIFT NORTH ACROSS THE AREA THIS EVENING BEFORE A COLD FRONT PUSHES EAST ACROSS THE OHIO VALLEY TUESDAY.
COULD POTENTIALLY SEE SOME BREAKS IN THE LOWEST OF THE CLOUD DECKS.
WITH RAIN CHCS INCREASING AGAIN OVERNIGHT INTO TUESDAY AS A REINFORCING FRONTAL BOUNDARY AND TROF ALOFT MOVE INTO THE AREA. EXPECTING TO SEE A SLIGHT INCREASE IN SHRA ACTIVITY BY THE AFTERNOON HOURS AS THE UPPER TROF AXIS AND MOISTURE CONVERGENCE BECOMES MORE DEFINED OVER THE REGION.
THEN AS THE COLD FRONT SLOWLY MOVES THROUGH AR WINDS WILL BECOME MORE W TO NW AT 5 TO 15 MPH INTO TUESDAY.
THIS EVENING THROUGH TUESDAY NIGHT MASSIVE UPPER LOW AND ASSOCIATED SOUTHERN PERIPHERY JET STREAK CONT TO BRING WINTRY WEATHER TO THE REGION. 2-4 INCHES CAN BE EXPECTED IN THE WESTERN TIER ADV WITH HIGHER AMOUNTS POSSIBLE ON THE PINE RIDGE. WHICH WILL QUICKLY DIMINISH AS THE UPPER LOW EXITS THE REGION.
934 PM EST MON NOV 30 2015 HIGH PRESSURE IS MOVING INTO THE GULF OF MAINE. A WARM FRONT OVER SOUTH CAROLINA WILL SLOWLY LIFT TO THE NORTH AND INTO THE MID ATLANTIC TUESDAY.
453 PM MST MON NOV 30 2015 00Z TAF CYCLE BRISK NW FLOW IN SPOTS WILL GRADUALLY DECOUPLE ALTHOUGH REMAIN STEADY/STRONG ALONG THE CNTRL MTN RIDGETOPS.
This evening, a large and closed upper level low was centered over Nebraska with a surface cold front well to the west of the local area.
421 PM CST MON NOV 30 2015 A WEAK COLD FRONT HAS MOVED THROUGH OUR FORECAST AREA TODAY. DESPITE THE LOWER DEW POINTS. A FREEZING FOG ADVISORY MAY BE NEEDED FOR SOME PARTS OF WESTERN/CENTRAL OKLAHOMA AND MAYBE WESTERN NORTH TEXAS BY MORNING. IT IS POSSIBLE THAT THERE COULD BE SOME FREEZING/FROZEN PRECIPITATION ALONG OUR NORTHERN BORDER.
A WEAK LOW PRESSURE SYSTEM BRUSHING THE COASTAL WATERS THIS AFTERNOON AND EVENING HAS BROUGHT INCREASING CLOUDS. THE VERY WEAK LOW PRESSURE SYSTEM AND FRONT PASSING ALONG THE WASHINGTON COAST HAS BROUGHT INCREASING CLOUDS AS WELL AS SPOTTY LIGHT RAIN. THIS WILL SHIFT NORTH OVERNIGHT BEFORE GIVING WAY TO VERY SHORT LIVED UPPER LEVEL RIDGING EARLY TUESDAY MORNING AHEAD OF THE NEXT SYSTEM EXPECTED TO BEGIN TO MOVE INTO THE AREA AROUND MIDDAY.
PRECIPITATION WILL LIKELY END ACROSS MUCH OF THE FORECAST AREA AS TROF AXIS LIFTS NORTHEAST THROUGH THE STATE. FREEZING DRIZZLE/VERY LIGHT FREEZING RAIN MAY OCCUR AT TIMES OVERNIGHT IN THE NORTH. BROAD UPPER LOW IMPACTING THE STATE.
WE WILL BE A POSITION IN WHICH THERE IS A HIGH CHANCE OF MINOR ACCUMULATION THROUGH SUNRISE ACROSS THE NORTH WITH THE HIGHEST RAIN CHANCES GENERALLY ALONG AND NORTH OF THE I-20 CORRIDOR. AN INCREASE IN MOISTURE OVER ALABAMA WILL OCCUR LATE MORNING INTO THE AFTERNOON AS THE UPPER LOW IN THE NORTHERN PLAINS INTENSIFIES AND FINALLY BEGINS TO WRAP UP AND SLIDE EASTWARD. 88 A SLOW MOVING COLD FRONT WILL BRING WIDESPREAD RAIN TO NORTH CENTRAL ALABAMA TONIGHT AND TOMORROW.
951 PM EST MON NOV 30 2015 WEAK LOW PRESSURE OFF THE OUTER BANKS WILL LIFT NORTHEAST THROUGH TUESDAY.
AN INVERTED TROUGH ATTACHED TO A WEAK LOW SITUATED OVER SE MS IS STRETCHED ACROSS MIDDLE TENNESSEE THIS AFTERNOON, WITH LIGHT RAIN ALREADY RE-DEVELOPING AS DEEPER MOISTURE PUSHES INTO THE MID STATE.
AREAS OF THE HILL COUNTRY AND THE SOUTHERN EDWARDS PLATEAU ARE SEEING SOME PEEKS OF SUN THIS AFTERNOON AS THE LOW-LVL CLOUD COVER SLOWLY ABATES DUE TO A WEAK FRONT SLIDING INTO THE REGION. THE LOW-LVL CLOUDS SHOULD CONTINUE TO BREAK UP OVER THE NEXT 6-12 HOURS FOR THE I-35 CORRIDOR PER NAM/GFS BUFR SOUNDINGS SUGGESTING DRIER AIR MIXING DOWN AS WELL ADVECTING IN FROM THE WEST. TEMPERATURES WILL BE SLIGHTLY WARMER TOMORROW GIVEN LESS LOW-LVL CLOUDS BUT THE MID AND HIGH CLOUDS WILL KEEP TEMPERATURES FROM REACHING THEIR FULL POTENTIAL.
ANOTHER LOW PRESSURE SYSTEM WILL BRING A FEW SNOW SHOWERS LATE THIS WEEK.
1009 PM EST MON NOV 30 2015 AN UPPER LOW OVER THE PLAINS STATES WILL SLIDE ACROSS THE GREAT LAKES THROUGH MIDWEEK.
714 PM EST MON NOV 30 2015 RAIN CHANCES WILL SLOWLY INCREASE TODAY AS LOW PRESSURE APPROACHES THE REGION.
728 PM EST MON NOV 30 2015 AN UPPER LOW OVER THE PLAINS STATES WILL SLIDE ACROSS THE GREAT LAKES THROUGH MIDWEEK.
AND TEMPERATURES ARE CLOSE TO FREEZING MAKING FOR A WET SNOW THAT IS HARD TO BLOW AROUND ANYWAY. STRONG DIFFLUENT FLOW CONTINUES AHEAD OF THE LOW. CLOSED LOW WILL TRACK SLOWLY EWD/NEWD. MOISTURE WILL CONTINUE TO WRAP AROUND THE BACKSIDE OF THE LOW AND CAUSE SOME LIGHT SNOW EVEN INTO TUE NIGHT. OUR AREA WILL BE IN NORTHWEST FLOW ALOFT AS THAT CLOSED LOW TRACKS NEWD AND A RIDGE BUILDS IN FROM THE WEST. A TROUGH WILL BE LOCATED OVER NM BY SAT. GIVEN PATH OF UPPER LOW.
532 PM EST MON NOV 30 2015 AS HIGH PRESSURE RECEDES TO THE NORTHEAST. AN UPPER LOW OVER THE PLAINS STATES WILL SLIDE ACROSS THE GREAT LAKES THROUGH MIDWEEK.
745 PM EST MON NOV 30 2015 CHANCES OF RAIN SHOWERS WILL INCREASE TONIGHT INTO EARLY TUESDAY MORNING AS AN UPPER LEVEL DISTURBANCE AND COLD FRONT APPROACH THE REGION.
ADDED ZONE 110 INTO THE HIGH WIND WARNING AND MOVED UP THE START TIME TO 05Z. LOOK FOR WARMER TEMPERATURES AS GFS 700MB TEMPERATURES CLIMB FROM -12 TO -14C TODAY.
FOG AND STRATUS THAT DOES DEVELOP WILL LIFT AFTER SUNRISE WITH ANOTHER WARMER-THAN-NORMAL DAY SETTING UP FOR TUESDAY. A WEAK COLD FRONT WILL APPROACH THE WATERS LATE IN THE WEEK WITH INCREASING CHANCES FOR SHOWERS.
1003 PM EDT THU APR 7 2016 A WEAK COLD FRONT WILL MOVE THROUGH THE REGION OVERNIGHT. COLD HIGH PRESSURE WILL BUILD OVER THE AREA FOR THE WEEKEND WITH WELL BELOW NORMAL TEMPERATURES.
Main upper trough axis will shift east of the area tonight and we should start to see rising upper heights as ridging begins to build eastward in from the west. Dry conditions will remain in place and despite the lower winds expected on Friday, will still have elevated to localized significant fire weather conditions during the afternoon Friday.
653 PM CDT THU APR 7 2016 /00Z TAFS/ A weak cold front has cleared the KABI terminal early this evening and will continue south across the remaining terminals through late evening. At 2 PM, a cold front was near a Haskell/Throckmorton line, then extended southwest along the I-20 corridor into the Permian Basin. The cold front currently moving into west central Texas will shift winds currently out of the southwest to the northeast this evening and tonight. However, lows tonight will actually be warmer as the winds behind the front will limit radiational cooling, and temperatures are only expected to get down into the lower to mid 50s. Temperatures will be 5 to 10 degrees cooler Friday with highs mainly in the mid to upper 70s.
713 PM CDT THU APR 7 2016 AN UPPER LEVEL TROUGH HAS PUSHED ITS WAY SOUTHEAST THROUGH THE DAY TODAY. LOWS TONIGHT WILL HEAD TOWARDS THE LOWER 30S. FIRE WEATHER VALUES WILL BE NEAR CRITICAL WITH RELATIVE HUMIDITIES IN THE LOW 20S WITH LIGHTER WINDS.
/ISSUED 324 PM CDT THU APR 7 2016/ A WEAK COLD FRONT JUST NORTH OF THE FORECAST AREA WILL MOVE SOUTHWARD THROUGH THE ENTIRE AREA THIS EVENING. EXPECT A COOLER AIRMASS IN PLACE LATE TONIGHT INTO FRIDAY.
SKIES ARE MOSTLY CLEAR WITH MAINLY NORTHWEST WINDS OF 10 MPH OR LESS RESULTING IN TEMPERATURES IN THE LOWER TO MID 70S ALONG THE ISLAND CHAIN. A BROAD RIDGE EXTENDS FROM THE EXTREME NORTHWEST GULF OF MEXICO. INTERIOR LOCATIONS OF SEVERAL ISLAND COMMUNITIES WILL EXPERIENCE RADIATIONAL COOLING SO TEMPERATURES WILL LIKELY DROP INTO THE LOWER TO MID 60S.
1040 PM EDT THU APR 7 2016 A WEAK COLD FRONT WILL MOVE THROUGH THE REGION OVERNIGHT. COLD HIGH PRESSURE WILL BUILD OVER THE AREA FOR THE WEEKEND WITH WELL BELOW NORMAL TEMPERATURES.
WINDS WILL BECOME MORE NORTHERLY THROUGH EARLY FRIDAY MORNING AS A DRY COLD FRONT DROPS SOUTH THROUGH THE REGION OVERNIGHT. A DRY COLD FRONT DISCUSSED PREVIOUSLY WILL PUSH SOUTHWARD ACROSS THE FORECAST AREA AND BRING COOLER AND DRIER AIR. BUT THE LOW LEVEL THERMAL TROUGH ASSOCIATED WITH THE DEEP EASTERN CONUS TROUGH WILL JUST GIVE A GLANCING SHOT TO THE FORECAST AREA.
though above freezing thanks to a partly to mostly cloudy sky and northwest winds between 10 and 15 mph.
AND A SECONDARY DRY COLD FRONT WILL PUSH THROUGH TONIGHT INTO FRIDAY MORNING. OVERNIGHT LOWS WILL BE 5-10 DEGREES COOLER THAN LAST NIGHT AS DRIER AND COOLER AIR FILTERS INTO THE REGION.
/issued 653 PM CDT THU APR 7 2016/ /00Z TAFS/ A weak cold front has cleared the KABI terminal early this evening and will continue south across the remaining terminals through late evening. At 2 PM, a cold front was near a Haskell/Throckmorton line, then extended southwest along the I-20 corridor into the Permian Basin. The cold front currently moving into west central Texas will shift winds currently out of the southwest to the northeast this evening and tonight. However, lows tonight will actually be warmer as the winds behind the front will limit radiational cooling, and temperatures are only expected to get down into the lower to mid 50s. Temperatures will be 5 to 10 degrees cooler Friday with highs mainly in the mid to upper 70s.
An upper level low pressure system currently just southwest of Southern California this evening was slowly lifting northward toward the coast. Moisture within the southerly flow on the eastern portion of the low was getting swept up into the west northwesterly upper level flow over the Southern Rocky Mountain Region and the Southern Plains.
FRIDAY WILL BE THE LAST DAY OF DOMINATING HIGH PRESSURE WHERE THE SKIES WILL BE MOSTLY CLEAR.
A FEW SHORT RANGE MODELS SHOW THE POTENTIAL FOR A FEW SHOWERS TO MOVE INTO THE WESTERN PANHANDLES FRIDAY AFTERNOON/EVENING AS A LOBE OF VORTICITY FROM AN UPPER LOW BEING ABSORBED BY A STRONGER CLOSED LOW OFF THE BAJA COAST. THE BETTER LIFT WILL BE OVER THE NEW MEXICO PLAINS GIVEN THE CLOSER PROXIMITY TO UPPER LEVEL TROUGHING, AND WEAK RIDGING BUILDING NORTHWARD FROM SOUTHERN TEXAS.
A COLD FRONT CURRENTLY NOTED ROUGHLY ALONG THE I-30 CORRIDOR IS SLATED TO DROP SWD THROUGH THE EVENING. THE COLD FRONT THAT MOVED THROUGH THE REGION OVER THE PAST 24 HRS HAS MOVED WELL SOUTH OF THE AREA THIS AFTERNOON, AND A VERY DRY AIR MASS IS CURRENTLY IN PLACE.
808 PM EDT THU APR 7 2016 A WEAK COLD FRONT WILL MOVE THROUGH THE REGION OVERNIGHT. COLD HIGH PRESSURE WILL BUILD OVER THE AREA FOR THE WEEKEND WITH WELL BELOW NORMAL TEMPERATURES.
637 PM CDT THU APR 7 2016 WINDS WILL QUICKLY DISSIPATE AT SUNSET AS HIGH PRESSURE SETTLES SOUTH ACROSS CENTRAL KS. THIS WILL SET THE STAGE FOR DECENT RADIATIONAL COOLING WITH LOWS FALLING INTO THE LOW TO MID 30S FOR MANY LOCATIONS WHERE PATCHY FROST MAY DEVELOP AFTER 08-10Z. AS HIGH PRESSURE TRANSLATES EAST OF THE AREA FRIDAY NIGHT LOW LEVEL EAST/SOUTHEAST WINDS WILL RETURN TO THE AREA KEEPING LOWS FROM BOTTOMING OUT WITH READINGS MOSTLY IN THE UPPER 30S/AROUND 40. LOW PRESSURE WILL DEEPEN OVER THE CENTRAL HIGH PLAINS ON SAT ALLOWING BREEZY SOUTHERLY FLOW TO RETURN TO THE AREA.
927 PM EDT THU APR 7 2016 WEAK HIGH PRESSURE BUILDING INTO THE REGION IN THE WAKE OF A COLD FRONT WILL SUPPORT STABLE DRY CONDITIONS WITH CLEAR SKIES AND NEAR SEASONAL LEVEL TEMPERATURES ACROSS THE ENTIRE FORECAST AREA THE REMAINDER OF TONIGHT. A REINFORCING SHOT OF COOL DRY AIR WILL MOVE INTO THE REGION FRIDAY NIGHT AS A SECONDARY COLD FRONT MOVES THROUGH THE REGION WITH PLEASANT DRY WEATHER AND BELOW NORMAL TEMPERATURES EXPECTED THROUGH THE UPCOMING WEEKEND. A SECONDARY COLD FRONT WILL MOVE SOUTH THROUGH THE WATERS LATE ON FRIDAY.
EXPECT MUCH COOLER TEMPERATURES. REGIONAL SATELLITE AND WATER VAPOR IMAGERY SHOW THE UPPER LOW CENTER JUST WEST OF SAN DIEGO AND NORTHERN BAJA THIS EVENING. THIS ACTIVITY ASSOCIATED WITH WEAK VORT LOBES ROTATING AROUND THE BASE OF THE LOW. THE MAIN AXIS OF THE LOW SHIFTS NORTH OF OUR AREA. LOOK FOR COOLER TEMPERATURES IN THE UPPER 70S TO NEAR 80 DEGREES OVER THE LOWER DESERTS FRIDAY AFTERNOON.
AN AREA OF SHOWERS, LOCALLY HEAVY ACROSS THE SOUTHERN TIER, IS CURRENTLY MOVING THROUGH THE FORECAST AREA IN ASSOCIATION WITH A COLD FRONT. A COLD FRONT WILL PASS THROUGH THE REGION TONIGHT AS A SURFACE CYCLONE TRACKS INTO NORTHERN NEW ENGLAND.
THE LEADING EDGE OF THIS HIGH WILL BE THE BOUNDARY THAT SLOWLY VEERS BREEZES AROUND THE DIAL THROUGH LATE TOMORROW MORNING. AS THE HIGH SETTLES INTO SOUTHEAST TEXAS. THE LARGE SCALE GRADIENT SHOULD BE SLACK ENOUGH TO POSSIBLY ALLOW A EARLY-MID AFTERNOON SEA BREEZE TO FORM (DEPENDENT UPON HOW MUCH SUN GETS THROUGH THE LOWERING SCT-BKN CIRRUS DECK).
WINDS WILL QUICKLY DISSIPATE AT SUNSET AS HIGH PRESSURE SETTLES SOUTH ACROSS CENTRAL KS. THIS WILL SET THE STAGE FOR DECENT RADIATIONAL COOLING WITH LOWS FALLING INTO THE LOW TO MID 30S FOR MANY LOCATIONS WHERE PATCHY FROST MAY DEVELOP AFTER 08-10Z. AS HIGH PRESSURE TRANSLATES EAST OF THE AREA FRIDAY NIGHT LOW LEVEL EAST/SOUTHEAST WINDS WILL RETURN TO THE AREA KEEPING LOWS FROM BOTTOMING OUT WITH READINGS MOSTLY IN THE UPPER 30S/AROUND 40. LOW PRESSURE WILL DEEPEN OVER THE CENTRAL HIGH PLAINS ON SAT ALLOWING BREEZY SOUTHERLY FLOW TO RETURN TO THE AREA.
1013 PM EDT THU APR 7 2016 A WEAK COLD FRONT WILL MOVE THROUGH THE REGION OVERNIGHT. COLD HIGH PRESSURE WILL BUILD OVER THE AREA FOR THE WEEKEND WITH WELL BELOW NORMAL TEMPERATURES.
941 PM CDT THU APR 7 2016 WINDS WILL REMAIN RELATIVELY LIGHT OVERNIGHT AS HIGH PRESSURE SETTLES INTO THE REGION.
743 PM EDT THU APR 7 2016 LOW PRESSURE OVER THE EASTERN LAKES WILL MOVE INTO QUEBEC OVERNIGHT. A LOW PRESSURE SYSTEM WILL TRACK ACROSS NORTHERN OHIO FRIDAY EVENING SPREADING SNOW ACROSS THE FORECAST AREA.
UPPER RIDGE WILL REMAIN OVERHEAD THROUGH FRIDAY THEN BREAK DOWN FRIDAY NIGHT.
THE HIGH RISK OF RIP CURRENTS ALONG THE EAST COAST BEACHES OF SOUTH FLORIDA HAS BEEN CANCELLED. /ISSUED 336 PM EDT THU APR 7 2016/ LOW PRESSURE OVER THE GREAT LAKES REGION WILL MOVE TO THE EAST INTO THE NORTHERN ATLANTIC WATERS TONIGHT INTO FRIDAY. THIS WILL ALLOW FOR A COLD FRONT ASSOCIATED WITH THE LOW TO MOVE SOUTHEAST FROM NORTHERN FLORIDA AND THROUGH SOUTH FLORIDA LATE FRIDAY. HIGH PRESSURE WILL THEN BUILD INTO THE SOUTHEASTERN UNITED STATES FROM THE NORTH THIS WEEKEND.
941 PM EDT THU APR 7 2016 LOW PRESSURE OVER THE EASTERN LAKES WILL MOVE INTO QUEBEC OVERNIGHT. A LOW PRESSURE SYSTEM WILL TRACK ACROSS NORTHERN OHIO FRIDAY EVENING SPREADING SNOW ACROSS THE FORECAST AREA.
/ISSUED 941 PM CDT THU APR 7 2016/ WINDS WILL REMAIN RELATIVELY LIGHT OVERNIGHT AS HIGH PRESSURE SETTLES INTO THE REGION.
955 PM CDT THU APR 7 2016 REINFORCING COLD FRONT CONTINUES TO SWEEP ON THROUGH THE REGION AS IT PUSHES SOUTH OF THE I-20 CORRIDOR THIS EVENING. THIS IS IN RESPONSE TO AN UPPER LOW SPINNING OFF THE SRN CA COAST AS PACIFIC MOISTURE STREAMS ACROSS THE DESERT SW AND MEXICO. WESTERLY AND SOUTHWEST WINDS WILL BE SHIFTING TO THE NORTHWEST AND NORTH WITH THE PASSAGE OF A COLD FRONT MOVING ACROSS THE AREA THIS EVENING. A WEAK COLD FRONT WAS LOCATED ROUGHLY ALONG OR JUST SOUTH OF INTERSTATE 30.
A SOUTHWARD MOVING COLD FRONT IS EVIDENT AS A FINE LINE ON RADAR THAT HAS JUST PASSED THROUGH TCL AND EET. A COLD FRONT WILL MOVE THROUGH TONIGHT WITH THE ONLY IMPACT BEING A SHIFT TO NORTHWEST WINDS AND SCT-BKN CLOUDS AROUND 6K TO 10K FT.
18Z SFC DATA HAS STRONG LOW PRESSURE OVER SOUTHERN CANADA WITH A HIGH OVER THE NORTHERN ROCKIES. A WEAK INVERTED TROF RAN FROM NORTHEAST IOWA INTO SOUTHERN CANADA. ATTENTION TURNS TO THE OTHER UPPER LEVEL DISTURBANCE ASSOCIATED WITH THE INVERTED TROF AS IT DROPS SOUTHEAST FROM MINNESOTA.
HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY AND STABLE CONDITIONS. HIGH PRESSURE ALOFT WILL CONTINUE TO PROVIDE DRY AND STABLE CONDITIONS.
THE LOW PRESSURE SYSTEM ADVANCING NORTH THROUGH SOUTHERN CALIFORNIA WILL SPREAD PRECIPITATION NORTH INTO UTAH BEGINNING FRIDAY. A SECOND LOW PRESSURE SYSTEM WILL BRING PRECIPITATION BACK TO UTAH LATE IN THE WEEKEND.
SHOULD PROCEED BELOW FREEZING IN THE NEXT COUPLE OF HOURS. CHATTANOOGA AIRPORT, TN 42 60 36 55 / 30 20 10 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 40 56 34 49 / 30 30 20 0 OAK RIDGE, TN 41 57 33 50 / 30 30 20 0 TRI CITIES AIRPORT, TN 36 52 29 43 / 40 40 50 20 NC.
LOW PRESSURE TO THE SOUTHWEST WILL BRING LIGHT TO OCCASIONALLY MODERATE SHOWERS TONIGHT AND FRIDAY.
WESTERLY AND SOUTHWEST WINDS WILL BE SHIFTING TO THE NORTHWEST AND NORTH WITH THE PASSAGE OF A COLD FRONT MOVING ACROSS THE AREA THIS EVENING. A WEAK COLD FRONT WAS LOCATED ROUGHLY ALONG OR JUST SOUTH OF INTERSTATE 30.