Aikyam-Lab/Synoptic-Bench huggingface dataset:
636 AM CDT SAT SEP 26 2015 FOR 12Z TAFS /ISSUED 549 AM CDT SAT SEP 26 2015/ CURRENT WATER VAPOR SATELLITE ANIMATION DEPICTS POSITION OF UPPER LOW ACROSS NE ALABAMA/NW GEORGIA/SE TENNESSEE. LATEST MODELS ARE IN AGREEMENT IN FORECASTING THE UPPER LOW TO WEAKEN AND LIFT NORTHWARD ALONG THE CUMBERLAND PLATEAU TODAY. AND AS A LARGE UPPER LOW BEGINS TO CUT OFF ACROSS SOUTH TEXAS. HIGHS TODAY WILL REACH THE LOWER/MID 70S. WITH LOWS TONIGHT ONLY FALLING INTO THE LOWER/MID 60S. SHORT TERM NWP GUIDANCE SUGGESTS THAT THE SOUTH TEXAS UPPER LOW WILL BEGIN TO DEEPEN AND SHIFT SLOWLY EASTWARD ON SUNDAY NIGHT.
1039 AM EDT SAT SEP 26 2015 AN UPPER LEVEL LOW OVER THE TENNESSEE VALLEY WILL WEAKEN AS IT SLOWLY LIFTS NORTH ACROSS THE REGION THROUGH THE WEEKEND.
945 AM MST SAT SEP 26 2015 HIGH PRESSURE WILL DOMINATE OUR WEATHER ACROSS THE DESERT SOUTHWEST THIS WEEKEND.
1102 AM CDT SAT SEP 26 2015 TEMPERATURES EARLY THIS MORNING WERE CONSIDERABLY COOLER THAN THEY HAVE BEEN THE PAST FEW MORNINGS DUE TO CLEAR SKIES AND DRY AIR AT THE SURFACE. THE COOL START TO THE MORNING WILL RESULT IN SLIGHTLY COOLER AFTERNOON HIGHS FROM THE MIDDLE 80S TO THE LOWER 90S. /ISSUED 248 AM CDT SAT SEP 26 2015/ A BROAD AREA OF LOW PRESSURE REMAINS IN PLACE OVER THE SOUTHERN AND SOUTHEAST PART OF THE U. DISRUPTING THE FLOW AROUND A LARGER SCALE RIDGE IN PLACE ACROSS NORTH AMERICA. UPPER LOW.
OTHERWISE THERE ARE RELATIVELY POOR LAPSE RATES AND WARMER MID-LEVELS.
/ISSUED 402 AM CDT SAT SEP 26 2015/ A LARGE UPPER RIDGE REMAINS CENTERED OVER THE SWRN CONUS WHILE A BROAD TROUGH CONTINUES TO SLOWLY MOVE NORTH THROUGH THE SERN CONUS AND TOWARDS THE OHIO RIVER VALLEY.
SFC ANALYSIS HAS 1012MB LOW PRESSURE OVER THE C GULF THIS MORNING WITH A GENERAL NORTH TO SOUTH PRESSURE GRADIENT ACROSS TX SUPPORTING LIGHT NE WINDS. WATER VAPOR IMAGERY SHOWS DEVELOPING UPPER LOW OVER THE NW GULF WHICH SHOULD COMBINE WITH ANOTHER UPPER LOW OVER N TX TODAY AND TONIGHT. IT LOOKS LIKE BETTER CHANCES OF RAIN WILL BE POSSIBLE TOMORROW AS UPPER LOW ORGANIZES AND MOISTURE DEEPENS.
1118 AM EDT SAT SEP 26 2015 LOW PRESSURE MOVING INTO WEST VIRGINIA WILL INCREASE CLOUDS AND COVERAGE OF LIGHT RAIN TONIGHT THROUGH SUNDAY MORNING.
A LOW PRESSURE SYSTEM WILL BE OVER NORTHERN LAKE SUPERIOR ON THURSDAY NIGHT.
ZONAL FLOW ALOFT ON THURSDAY WILL GRADUALLY TRANSITION TO SOUTHWEST FLOW ALOFT OVER THE WEEKEND AS AN UPPER LEVEL RIDGE BUILDS ALONG OR JUST OFFSHORE THE SOUTHEAST COAST. HIGHS IN THE LOWER TO MID 60S.
Therefore, temperatures will continue to be mild with lows tonight in the low/mid 40s. A little concerned about some high level cloudiness knocking a few degrees off highs in places tomorrow but we will still be at least in the low 60s, if not middle 60s if cirrus isn't too thick.
KAPF MAY DEVELOP AN MFVR DECK WITH COOLER MARINE LAYER AIR INTERACTING WITH SUBTLE LAND DRAINAGE MAINLY AFTER 09Z. /ISSUED 340 PM EST WED DEC 9 2015/ DRIER WEATHER IS IN STORE FOR SOUTH FLORIDA AS HIGH PRESSURE BUILDS IN FOR THE WEEKEND. FRONT THAT HAS PERSISTED IN VICINITY OF SOUTH FLORIDA IS FINALLY BEING PUSHED TO THE SOUTHEAST BY HIGH PRESSURE BUILDING IN FROM THE NORTHERN GULF OF MEXICO. AFTER SUBTLE H5 TROUGH PASSES.
TWO WEAK TROUGHS TODAY AND THURSDAY. AND THEN TWO STRONG TROUGHS. LATEST OBS ARE SHOWING TEMPS GENERALLY IN THE LOW TO UPPER 40S ACROSS THE FORECAST AREA. OVERNIGHT LOWS ARE STILL EXPECTED TO BOTTOM OUT IN THE LOW 40S. CURRENT TROUGH EXITING EASTERN INDIANA WILL CLEAR OUT REMAINING LOW CLOUDS BUT NEXT WEAK TROUGH IN PLAIN STATES WILL BRING SOME MID CLOUD IN DURING THE OVERNIGHT HOURS. TROUGH MOVING ACROSS THURSDAY WILL STRENGTHEN SOUTHWEST WINDS AND CARRY MID CLOUD EAST OF HERE DURING THE AFTERNOON. ALL MODELS RETURNING LOW LEVEL MOISTURE IN ADVANCE OF APPROACHING WARM FRONT AND SHOW SOUNDINGS SATURATING UNDER INVERSION BELOW 5000 FEET SO EXPECTATION OF BECOMING MOSTLY CLOUDY AFTER MIDNIGHT APPEARS ON TARGET.
Temperatures this afternoon have again warmed into the low to mid 60s area-wide, with light south to southwest winds.
SOME OF THE TYPICALLY COOLER LOCATIONS WILL BE A BIT MILDER TONIGHT. LEE TROUGH WILL BE ACROSS THE I-25 CORRIDOR WITH WARM SOUTHERLY WINDS OVER THE PLAINS.
SURFACE TEMPERATURES WILL LIKELY REMAIN ABOVE FREEZING WITH 925MB TEMPERATURES AROUND +6C AND A PREDOMINANT WEST WIND.
AS SURFACE RIDGING BUILDS ACROSS THE AREA OVERNIGHT. CHATTANOOGA AIRPORT, TN 45 64 49 66 / 20 0 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 46 60 47 64 / 10 0 0 10 OAK RIDGE, TN 45 61 47 64 / 10 0 10 10 TRI CITIES AIRPORT, TN 43 59 39 63 / 30 10 0 10.
BUT STILL SEPARATED FROM THE LOWER KEYS AT THIS HOUR. THE LATE EVENING LOCAL SOUNDING SHOWS A STABLE LAYER EXTENDING THROUGH THE LOWEST LAYERS. STRATUS TO THE NORTH/NORTHWEST OF THE LOWER KEYS WILL NEED TO BE MONITORED OVER THE NEXT FEW HOURS FOR THE THREAT OF THE PERIODIC MOSTLY CLOUDY CONDITIONS OVERNIGHT. PATCHES OF LOW STRATUS MAY DEVELOP OVER THE COOLER GULF WATERS MAY EXPAND TO LINGER NEAR THE LOWER KEYS.
712 PM EST WED DEC 9 2015 A WEAK TROUGH OF LOW PRESSURE WILL PASS THROUGH EASTERN NC TONIGHT. HIGH PRESSURE OVER THE SOUTHEAST STATES WILL MOVE NORTHEAST ACROSS EASTERN NC THROUGH THIS WEEKEND.
600 PM CST WED DEC 9 2015 DRY CONDITIONS PREVAILED TODAY WITH THE PASSAGE OF THE UPPER LEVEL TROUGH AS SHOWER ACTIVITY JUST COULDNT MATERIALIZE. NOW THAT THE TROUGH AXIS IS THROUGH.
958 PM EST WED DEC 9 2015 HIGH PRESSURE WILL PREVAIL OVERNIGHT INTO THE WEEKEND.
TWO WEAK TROUGHS TODAY AND THURSDAY. AND THEN TWO STRONG TROUGHS. CURRENT TROUGH EXITING EASTERN INDIANA WILL CLEAR OUT REMAINING LOW CLOUDS BUT NEXT WEAK TROUGH IN PLAIN STATES WILL BRING SOME MID CLOUD IN DURING THE OVERNIGHT HOURS. TROUGH MOVING ACROSS THURSDAY WILL STRENGTHEN SOUTHWEST WINDS AND CARRY MID CLOUD EAST OF HERE DURING THE AFTERNOON. ALL MODELS RETURNING LOW LEVEL MOISTURE IN ADVANCE OF APPROACHING WARM FRONT AND SHOW SOUNDINGS SATURATING UNDER INVERSION BELOW 5000 FEET SO EXPECTATION OF BECOMING MOSTLY CLOUDY AFTER MIDNIGHT APPEARS ON TARGET.
602 PM EST WED DEC 9 2015 HIGH PRESSURE WILL PREVAIL TONIGHT INTO THE WEEKEND.
Lee trough reorganizing this afternoon, with SW downslope breezes pushing afternoon temperatures close to 70 degrees. The low temperature this morning at Dodge City was 38 degrees. The attendant dry cold front is expected to sweep through KS late tonight, with GFS cranking northerly 850 mb winds as high as 50 kts for a few hours.
1000 PM EST WED DEC 9 2015 A WEAK COLD FRONT WILL CROSS THE COAST EARLY THURSDAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION THROUGH THE WEEKEND ACCOMPANIED BY A WARMING TREND.
957 PM EST WED DEC 9 2015 A WEAK LOW PRESSURE SYSTEM SWINGS ACROSS THE AREA OVERNIGHT.
MAINLY ZONAL PATTERN TRANSITIONING INTO A TROUGH OVER THE EASTERN CONUS. A FIERCE PACIFIC COLD FRONT WILL CROSS THE AREA IN ASSOCIATION WITH THE LOW PRESSURE SYSTEM. VERY LITTLE MOISTURE AVAILABLE AS THE COLD FRONT PASSES. VERY MILD OVERNIGHT WITH MOST IF NOT ALL LOCATIONS REMAINING ABOVE THE FREEZING MARK AS WINDS INCREASE.
Well above normal temperatures are still expected tomorrow even behind the wave, and highs will likely reach the lower to even mid 60s across the region by early afternoon.
753 PM EST WED DEC 9 2015 A WEAK LOW PRESSURE SYSTEM SWINGS ACROSS THE AREA OVERNIGHT.
654 PM MST WED DEC 9 2015 PACIFIC COLD FRONT HAS PUSHED THROUGH MOST OF OUR CWA. WINDY CONDITIONS WILL PERSIST THROUGH MUCH OF THE NIGHT ACROSS OUR LOWER ELEVATIONS AS BOUNDARY LAYER FLOW REMAINS ELEVATED IN RESPONSE TO NEARLY STACKED SFC-UPPER LOWS OVER SOUTHERN SASKATCHEWAN. THIS FEATURE WILL CONTINUE TO DEEPEN A LEE SIDE TROUGH THROUGH THE EARLY PART OF THE EVENING BEFORE STRENGTHENING AND MOVING TO THE SOUTHEAST. IN ITS WAKE PRESSURE RISES ALONG A COLD FRONT. PRESSURE RISES BEHIND THIS COLD FRONT ARE BEGINNING TO END THE STRONGEST GAP-FLOW WIND GUSTS.
AN UPPER LEVEL TROUGH AXIS - FROM THE GREAT LAKES TO THE SOUTHERN APPALACHIAN CHAIN - LIFTS EAST-NORTHEASTWARD OVER NIGHT. HIGH PRESSURE EASING TOWARD THE WATERS WILL RESULT IN NORTH TO NORTHEAST WINDS AT NO MORE THAN 15 KNOTS OVERNIGHT. AN APPROACHING COLD FRONT DURING THE WEEKEND.
CHATTANOOGA AIRPORT, TN 45 64 49 66 / 20 0 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 46 60 47 64 / 20 0 0 10 OAK RIDGE, TN 45 61 47 64 / 20 0 10 10 TRI CITIES AIRPORT, TN 43 59 39 63 / 30 10 0 10.
THE UPPER LOW WAS CENTERED NEAR 46N 136W AT 830 PM MST. COLD FRONT WITH SHOWERS AND WIND GUSTS TO 35 MPH PASSED THROUGH ERN OREGON THIS MORNING AND SWRN IDAHO EARLY THIS AFTERNOON. BRIEF RIDGING AND PARTIAL CLEARING ARE EXPECTED THIS EVENING BEFORE THE NEXT POWERFUL PACIFIC STORM COMES INLAND DURING THE NIGHT AND SPREADS MORE PCPN ACROSS SERN OREGON LATE TONIGHT AND WRN-MOST IDAHO IN THE PRE-DAWN THURSDAY.
THIS EVENING THROUGH THURSDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTHWEST SK. WITH COLD FRONT ACROSS WESTERN MT INTO FAR EASTERN ID. UPPER LEVEL ANALYSIS SHOWS WEAK RIDGING OVER THE REGION. A COOLING TREND WILL TAKE PLACE FOR THE REST OF THE WEEK AS A SERIES OF UPPER LEVEL DISTURBANCES AND COLD FRONTS CROSS THE AREA IN FAST WEST-NORTHWEST FLOW ALOFT.
AN UPPER TROUGH WITH WEAK SURFACE REFLECTION IS PASSING ACROSS THE TERMINALS AT THIS TIME. CEILINGS AND MVFR FOG SHOULD LIFT AROUND 14-16Z WITH SCATTERING OUT OF THE LOW LAYER DURING THE AFTERNOON.
605 PM EST WED DEC 9 2015 A WEAK COLD FRONT OVER WESTERN OHIO WILL MOVE EAST OF THE AREA TONIGHT.
628 PM EST WED DEC 9 2015 A WEAK COLD FRONT OVER WESTERN OHIO WILL MOVE EAST OF THE AREA TONIGHT.
more than 20 degrees warmer than normal. Meanwhile, the low to mid levels are rather dry, so despite the passage of multiple short wave troughs and associated vertical motion, no precipitation has occurred. Otherwise expect the southwest breeze and high clouds overnight to keep temperatures warm, with a low in the lower to middle 40s. This also would be about 20 degrees warmer than normal. with highs in the low to mid 60s once again.
TEMPERATURES RANGE FROM THE UPPER 50S OVER NORTHEAST MISSISSIPPI TO THE LOWER 60S ELSEWHERE.
951 PM EST WED DEC 9 2015 A WEAK COLD FRONT OVER WESTERN OHIO WILL MOVE EAST OF THE AREA TONIGHT.
SHWRS OVR AREAS EAST OF THE I 79 CORRIDOR WILL DIMINISH WITH PASSAGE OF THE MID LVL TROUGH AXIS.
COULD SEE PEAKS GUSTS ON RIDGETOPS AND UPPER EAST SLOPES OF THE FRONT RANGE ANYWHERE FROM 60-75MPH WITH THE POSSIBILITY OF A FEW GUST TO NEAR 90 MPH IN AREAS PRONE TO HIGH WINDS. WILL HOLD ONTO THE CHANCE OF LIGHT SNOW OVERNIGHT OVER THE HIGHER PEAKS AND UPPER WEST SLOPES. TEMPERATURES ON THURSDAY 2-4DEG C COOLER THAN TODAY DUE TO SLIGHT COOLING ALOFT.
AN UPPER LEVEL LOW WILL TRACK THROUGH THE NORTHERN PLAINS OVER THE UPPER MISSISSIPPI VALLEY ON THURSDAY.
624 PM EST WED DEC 9 2015 A WEAK COLD FRONT WILL CROSS THE COAST EARLY THURSDAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION THROUGH THE WEEKEND ACCOMPANIED BY A WARMING TREND.
TEMPERATURES CONTINUE TO MODERATE WARMER THROUGH THE PERIOD. AND WITH WARMER AIR MIXING DOWN EXPECT TO SEE HIGHS RANGING FROM THE LOW TO MID 80S ACROSS INLAND PORTIONS OF THE COASTAL BEND AND VICTORIA CROSSROADS TO NEAR 90 DEGREES OVER THE WESTERN BRUSH COUNTRY AND RIO GRANDE PLAINS.
OTHERWISE, THE LOW CLOUDS SHOULD BEGIN TO SCATTER/BREAK AFTER 10/20Z AND HAVE INTRODUCED VFR CONDITIONS DURING THAT PERIOD.
843 PM MST WED DEC 9 2015 PACIFIC COLD FRONT HAS PUSHED THROUGH ALL OF OUR CWA. WINDY CONDITIONS WILL PERSIST THROUGH MUCH OF THE NIGHT ACROSS OUR LOWER ELEVATIONS AS BOUNDARY LAYER FLOW REMAINS ELEVATED IN RESPONSE TO NEARLY STACKED SFC-UPPER LOWS OVER SOUTHERN SASKATCHEWAN. THIS FEATURE WILL CONTINUE TO DEEPEN A LEE SIDE TROUGH THROUGH THE EARLY PART OF THE EVENING BEFORE STRENGTHENING AND MOVING TO THE SOUTHEAST. IN ITS WAKE PRESSURE RISES ALONG A COLD FRONT. PRESSURE RISES BEHIND THIS COLD FRONT ARE BEGINNING TO END THE STRONGEST GAP-FLOW WIND GUSTS.
Overnight lows tonight will be slightly warmer than last night, as southerly low- level flow continues to increase surface moisture. Some of the lower elevation areas, across our southeastern counties, may have brief fog around sunrise tomorrow morning; however, confidence regarding where fog might develop is too low to include any fog wording in the forecast.
648 PM EST WED DEC 9 2015 A WEAK COLD FRONT WILL CROSS THE COAST EARLY THURSDAY. HIGH PRESSURE WILL BUILD ACROSS THE REGION THROUGH THE WEEKEND ACCOMPANIED BY A WARMING TREND.
949 PM CST WED DEC 9 2015 SHORT WAVE TROUGH ALONG WITH A SURFACE FRONT/TROUGH WILL BRING WINDS AROUND TO THE WEST AND INCREASING WITH SCATTERED LIGHT RAIN SHOWERS DEVELOPING ACROSS THE NORTH TONIGHT. SURFACE TEMPERATURES WILL LIKELY REMAIN ABOVE FREEZING WITH 925MB TEMPERATURES AROUND +6C AND A PREDOMINANT WEST WIND.
/ISSUED 430 PM CST WED DEC 9 2015/ HIGH PRESSURE TO THE EAST IS MAINTAINING CONTROL OVER THE REGION. AN UPPER LEVEL TROF IS EXPECTED TO SWING DOWN AND SUPPORT STORM DEVELOPMENT ALONG AND AHEAD OF A FRONT MOVING THRU THIS WEEKEND.
430 PM CST WED DEC 9 2015 HIGH PRESSURE TO THE EAST IS MAINTAINING CONTROL OVER THE REGION. AN UPPER LEVEL TROF IS EXPECTED TO SWING DOWN AND SUPPORT STORM DEVELOPMENT ALONG AND AHEAD OF A FRONT MOVING THRU THIS WEEKEND.
914 PM CST WED DEC 9 2015 03Z SURFACE MAP SHOWED A HIGH PRESSURE RIDGE OVER MUCH OF THE SOUTHEAST U. TEMPERATURES RANGE FROM THE UPPER 50S OVER NORTHEAST MISSISSIPPI TO THE LOWER 60S ELSEWHERE.
A WEAK COLD FRONT WILL MOVE SOUTH THROUGH NORTHERN NEVADA AND BECOME STATIONARY FROM HUMBOLDT COUNTY TO NORTHERN WHITE PINE COUNTY WEDNESDAY EVENING. THIS FRONT RETURNS NORTH AS A WARM FRONT LATER WEDNESDAY BEFORE A MUCH STRONGER COLD FRONT MOVES THROUGH NORTHERN AND CENTRAL NEVADA THURSDAY INTO THURSDAY EVENING BRINGING STRONG WINDS.
OVERNIGHT LOWS IN THE LOW TO MIDDLE 40S STILL LOOK ON TRACK AS CIRRUS PASSES OVERHEAD DURING THE OVERNIGHT HOURS.
THIS FEATURE WILL CONTINUE TO DEEPEN A LEE SIDE TROUGH THROUGH THE EARLY PART OF THE EVENING BEFORE STRENGTHENING AND MOVING TO THE SOUTHEAST. IN ITS WAKE PRESSURE RISES ALONG A COLD FRONT. PRESSURE RISES BEHIND THIS COLD FRONT ARE BEGINNING TO END THE STRONGEST GAP-FLOW WIND GUSTS.
AND CONTINUED VERY MILD INTO THURSDAY WITH THE MIXING AND THE PRESENCE OF ONLY SLIGHTLY COOLER AIR BEHIND THE FRONT. TEMPERATURES WILL STAY WELL ABOVE FREEZING TONIGHT AND WARM MODESTLY THURSDAY TO THE UPPER 40S TO MID 50S. NO DANGER OF FREEZING RAIN. THE NAM SEEMS TO HANDLE THE LOWER LEVELS QUITE POORLY THESE DAYS ON TEMPERATURES AND WINDS.
810 PM MST WED DEC 9 2015 LATEST ANALYSIS SHOWS COLD FRONT HAS MOVED INTO NORTHEASTERN WYOMING AND FAR NORTHWESTERN SOUTH DAKOTA FOLLOWED BY GUSTY NORTHWEST WINDS. THIS EVENING THROUGH THURSDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTHWEST SK. WITH COLD FRONT ACROSS WESTERN MT INTO FAR EASTERN ID. UPPER LEVEL ANALYSIS SHOWS WEAK RIDGING OVER THE REGION. A COOLING TREND WILL TAKE PLACE FOR THE REST OF THE WEEK AS A SERIES OF UPPER LEVEL DISTURBANCES AND COLD FRONTS CROSS THE AREA IN FAST WEST-NORTHWEST FLOW ALOFT.
701 PM EST WED DEC 9 2015 A WEAK LOW PRESSURE SYSTEM SWINGS ACROSS THE AREA OVERNIGHT.
/ISSUED 253 PM CST WED DEC 9 2015/ SURFACE WINDS HAVE INCREASED INTO THE AFTERNOON TO 10 TO 15 KTS ON AVERAGE WITH GUSTS INTO THE 20 KT RANGE AS A LEE TROF CONTINUES TO PUSH ITS WAY INTO THE REGION. THEY WILL THEN TEMPORARILY BECOME LIGHT UNTIL AROUND MIDNIGHT WHEN THE LEE TROF DEEPENS SLIGHTLY AND A WEAK FRONT APPROACHES THE AREA. THIS WILL HELP TEMPS FROM GETTING NEAR OR BELOW FREEZING TONIGHT WITH MOST OVERNIGHT LOWS AVERAGING IN THE 40S.
A MID LVL S/W TROUGH WILL MOVE ACROSS THE SE GULF TWD S FL LATE TONIGHT BUT SHOULD REMAIN FAR ENOUGH AWAY FROM THE FORECAST AREA TO INDUCE ANY LATE NIGHT SHOWER DEVELOPMENT ACROSS E CENTRAL FL LATER TONIGHT.
At 00 UTC, weak high pressure was located over the region, with the initial signs of return flow developing across the Central Gulf. High pressure will remain in control of the weather overnight with mostly clear skies.
548 PM CST WED DEC 9 2015 Weak high pressure of 1016 mb over southern MS river valley and ridging northward across the MS river valley will shift into the southeast states by sunrise Thursday morning. West winds 7-15 mph this afternoon will veer SSW this evening at 5-10 mph and then gradually pick up to 10-15 mph west of I-57 later tonight as pressure gradient starts to increase while south winds stay lighter in southeast IL tonight closer to high pressure ridge. Combination of ssw winds and passing mid/high clouds to keep low temps well above normal and freezing with lower 40s most areas and coolest around 40F near IN border where winds will be lighter tonight.
321 AM CDT FRI AUG 14 2015 BROAD UPPER RIDGING REMAINS SITUATED OVER THE CENTRAL AND SOUTHERN ROCKIES INTO THE DESERT SW WITH AN UPPER TROUGH OVER THE EASTERN SEABOARD. HIGH PRESSURE EXTENDS FROM THE TENNESSEE/OHIO VALLEY INTO THE EASTERN OZARKS WITH WEAK LOW PRESSURE OVER THE HIGH PLAINS. THE PATTERN TODAY WILL BE FAIRLY SIMILAR TO WHAT HAS BEEN IN PLACE THE LAST COUPLE OF DAYS WITH THE UPPER RIDGE REMAINING OVER THE CENTRAL/SOUTHERN ROCKIES WITH WEAK RETURN FLOW OVER THE PLAINS. BETTER MOISTURE AND INSTABILITY WILL AGAIN BE LOCATED OVER THE HIGH PLAINS AND WITH EASTERLY UPSLOPE FLOW.
642 AM EDT FRI AUG 14 2015 HIGH PRESSURE DOMINATES INTO THE WEEKEND WITH WEAK WIND FLOW.
420 AM EDT FRI AUG 14 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE FROM THE MISSISSIPPI VALLEY TO THE EASTERN SEABOARD WILL DOMINATE INDIANA WEATHER THROUGH THE WEEKEND.
WITH THE AMPLIFIED UPPER-LEVEL RIDGE REMAINING TO OUR WEST. A SURFACE TROF WILL REMAIN JUST TO OUR WEST. BY MID AFTERNOON A WEAK RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE FORECAST AREA WITH LIGHT WINDS AND WEAK MIXING. BY SATURDAY THE RIDGE WILL HAVE PASSED TO THE EAST WITH SOUTHWEST FLOW BECOMING MORE PREDOMINANT AT THE SFC AND ALOFT.
632 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL BUILD EAST AND CREST ACROSS THE AREA TODAY BEFORE SLIDING OFFSHORE.
206 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL PERSIST ACROSS THE AREA THROUGH THE WEEKEND. WK TROUGH ALOFT INVOF ERN STATES CONTS TO WEAKEN SUN NGT INTO MON. HIGH PRESSURE IS CENTERED OVER THE CENTRAL APPALACHIANS EARLY THIS MORNING.
616 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL BUILD SOUTH OF THE AREA TODAY. A WEAK COLD FRONT WILL APPROACH TONIGHT AND CROSS THE AREA ON SATURDAY.
657 AM EDT FRI AUG 14 2015 HIGH PRESSURE OVER THE UPPER OHIO VALLEY WILL MOVE OFF THE EAST COAST TONIGHT. ALLOWING A WEAK COLD FRONT TO PUSH ACROSS THE AREA TONIGHT INTO SATURDAY.
A FAIRLY STRONG COLD FRONT WILL TRACK ACROSS THE AREA LATE SATURDAY AFTERNOON AND SATURDAY NIGHT.
KEPT THE LOW PCPN CHANCES INHERITED FROM THE PREVIOUS FORECAST WITH SOME MINOR CHANGES. HIGH PRESSURE WILL MOVE THROUGH THE NORTHLAND. AND WE GET EVEN WARMER FOR SATURDAY WITH HIGHS ONCE AGAIN IN THE 80S TO NEAR 90.
THE SUMMER TIME PATTERN REMAINS COMPLEX WITH A TROUGH ALONG THE EASTERN SEABOARD. A DEEP LAYER HIGH PRESSURE OVER THE DESERT SOUTHWEST. AT THE SURFACE THERE IS A RIDGE OVER THE EASTERN ATLANTIC.
250 AM CDT FRI AUG 14 2015 RIDGE OF HIGH PRESSURE EXTENDING FROM THE MID-ATLANTIC STATES WESTWARD INTO THE CENTRAL PLAINS WILL CONTINUE TO DOMINATE THE WEATHER TODAY. AM EXPECTING WARM AND DRY CONDITIONS WITH AFTERNOON HIGH TEMPERATURES A COUPLE OF DEGREES WARMER THAN YESTERDAY IN THE MIDDLE TO UPPER 80S. COLD FRONT CURRENTLY DRAPED ACROSS THE UPPER MIDWEST WILL SAG SOUTHWARD INTO THE GREAT LAKES TONIGHT INTO SATURDAY.
In the upper levels, a trough remains over the Atlantic Seaboard today with ridging over the Great Plains. Highs will be in the low to mid 90s.
157 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL BUILD TO THE SOUTH OVERNIGHT. A WEAK COLD FRONT WILL MOVE SLOWLY ACROSS FROM SATURDAY INTO SATURDAY NIGHT BEFORE DISSIPATING.
347 AM EDT FRI AUG 14 2015 HIGH PRESSURE OVER THE UPPER OHIO VALLEY WILL MOVE OFF THE EAST COAST TONIGHT. ALLOWING A WEAK COLD FRONT TO PUSH ACROSS THE AREA TONIGHT INTO SATURDAY.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW HIGH PRESSURE FROM THE MISSISSIPPI VALLEY TO THE EASTERN SEABOARD WILL DOMINATE INDIANA WEATHER THROUGH THE WEEKEND.
355 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL PERSIST ACROSS THE AREA THROUGH THE WEEKEND. WK TROUGH ALOFT INVOF ERN STATES CONTS TO WEAKEN SUN NGT INTO MON. HIGH PRESSURE IS CENTERED OVER THE CENTRAL APPALACHIANS EARLY THIS MORNING.
WARM AND MUGGY CONDITIONS WILL PREVAIL TODAY WITH HIGHS IN THE LOW TO MID 80S. THE LARGE SOUTHWEST UPPER LEVEL RIDGE WILL TEMPORARILY BUILD NORTHEAST INTO THE WESTERN GREAT LAKES REGION AS A COUPLE OF WEAK UPPER LEVEL DISTURBANCES MOVE SOUTH ACROSS THE FORECAST AREA. THE HIGH RES NAM APPEARS TO HAVE INITIALIZED THIS SYSTEM WELL AND IS ALSO VERIFYING THIS SYSTEM WELL. HOWEVER MEAGER MID LEVEL LAPSE RATES/BUILDING HGHTS ALOFT UPSTREAM SHOULD STYMIE ALL BUT ROUGE STRONGER LIFTED PARCELS ALONG INCREASINGLY DIFFUSE TROF FEATURE AND/OR LAKE BREEZE. CONTD TO SIDE ON WARMER SIDE/HIR THAN BLENDED APPROACH FOR TEMPS SUN WITH CWA POISED ALONG LEADING/SERN FLANK OF STRONG LOW LEVEL THERMAL RIDGE. WELL CAPPED MID LVL ATMOS AS SPINE OF RIDGE SETTLES OVHD.
FREEZING AND -20C LEVELS ARE ALSO DEPICTED ABOUT 1000 FEET LOWER THAN YESTERDAY. DEEP SOUTHEASTERLY TO EAST-SOUTHEASTERLY FLOW WILL THEN BECOME ENTRENCHED ACROSS THE AREA BEGINNING SATURDAY AS STRONG RIDGING SETS UP ACROSS THE WESTERN ATLANTIC.
133 AM CDT FRI AUG 14 2015 High pressure looks to hold firm across the Ohio river valley through much of the short term.
336 AM EDT FRI AUG 14 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY. A WEAK COLD FRONT WILL CROSS THE AREA SATURDAY NIGHT.
631 AM EDT FRI AUG 14 2015 HIGH PRESSURE OVER THE UPPER OHIO VALLEY WILL MOVE OFF THE EAST COAST TONIGHT. ALLOWING A WEAK COLD FRONT TO PUSH ACROSS THE AREA TONIGHT INTO SATURDAY.
UPPER LEVEL LOW PRESSURE SYSTEM OFF THE COAST CONTINUES TO SLOWLY MOVE TOWARDS THE COAST. THE GOOD NEWS IS THAT TEMPERATURES WILL BE 10 TO 15 DEGREES COOLER ON FRIDAY. A MARINE PUSH OF COOLER AIR WILL CAUSE WINDS 25-35 KTS AFTER 18Z WITH GUSTS 40-50 KTS.
HIGH PRESSURE ALOFT BUILDING INTO THE REGION FROM THE EAST WILL BRING VERY HOT HIGH TEMPERATURES THROUGH THIS WEEKEND WITH OVERALL LIMITED THUNDERSTORM ACTIVITY. LATEST WV IMAGERY SHOWS STRONG RIDGING ALOFT WITH AN H5 HIGH OF ABOUT 598 DM CENTERED OVER NEW MEXICO. SOUTHEAST ARIZONA REMAINS ON THE SOUTHWEST PERIPHERY OF THE HIGH WITH CONTINUED SOUTHEAST FLOW ALOFT. AS THE UPPER HIGH NUDGES WEST OVER THE NEXT COUPLE OF DAYS. THUNDERSTORM ACTIVITY WILL CONTINUE TO BE LIMITED WITH JUST SLIGHT CHANCES MAINLY IN THE AFTERNOON AND EVENING HOURS THROUGH SATURDAY AS THERE IS MARGINAL MOISTURE AND MID LEVEL SUBSIDENCE FROM THE HIGH. AS THE HIGH MOVES WEST THE MAIN STORY WILL BE THE RECORD HEAT ACROSS MANY LOCATIONS.
TEMPERATURES WILL BE NEAR SEASONABLE LEVELS TODAY THEN WARM TO WELL ABOVE NORMAL THIS WEEKEND AS A STRONG RIDGE OF HIGH PRESSURE BUILDS OVER THE STATE. ASSOCIATED WITH A TROUGH THAT WAS FORECAST TO LIFT NORTHEAST ACROSS THE PACIFIC NORTHWEST TODAY.
AN UPPER LEVEL LOW PRESSURE REMAINS OFF THE OREGON COAST EARLY THIS MORNING. THE CONVECTION WILL DIMINISH OVER SE OREGON BY EARLY AFTERNOON AND MOST OF SW IDAHO BY LATE AFTERNOON AS A DRIER AIR MOVES INTO THE REGION AHEAD OF THE UPPER LOW AS IT LIFTS NORTHEAST THROUGH OREGON AND WASHINGTON. WINDS WILL INCREASE AHEAD OF A COLD FRONT BY EARLY AFTERNOON. TEMPERATURES WILL TREND COOLER.
433 AM EDT FRI AUG 14 2015 HIGH PRESSURE INTO THE WEEKEND WITH WEAK WIND FLOW.
As a cold front approaches the region, the threat of strong storms will move to the east through the afternoon and evening. The approaching cold front is anticipated to cause southerly winds to steadily increase throughout the afternoon. Saturday will be a much cooler day, with temperatures as much as 20 degrees cooler than Friday, placing many valley locations in mid 70s to lower 80s.