Aikyam-Lab/Synoptic-Bench huggingface dataset:
THIS LOW WILL CONTINUE WORKING SOUTHEAST TOWARD SOUTHERN WI THIS MORNING. MEANWHILE AN AREA OF PRECIP ACROSS FAR SOUTHWESTERN MN IS ALREADY TAKING SHAPE AHEAD OF THE MAIN COLD FRONT. THIS SYSTEM WILL HAVE COOLER AIR TO WORK WITH TONIGHT. A SECOND LOW PRESSURE SYSTEM WILL MOVE SOUTHEAST ACROSS THE UPPER MISSISSIPPI VALLEY ON THURSDAY. GUSTY NORTHWEST WINDS ARE EXPECTED TO DEVELOP THURSDAY AFTERNOON ACROSS WEST CENTRAL INTO SOUTH CENTRAL MINNESOTA IN THE WAKE OF THE LOW.
LOWS WILL REACH THE LOWER TO MID 40S BY EARLY THURSDAY MORNING. SURFACE WINDS WILL BE BREEZY AGAIN THURSDAY MORNING AS A WEAK COLD FRONT MOVES ACROSS THE FORECAST AREA.
236 PM CDT WED APR 6 2016 An upper trough is currently moving over the Upper Midwest with upper ridging building over the western conus. High temperatures today are expected to be closer to normal values behind the cold front with highs mostly in the 70s. On Thursday, the previously mentioned upper trough will strengthen and expand over the eastern conus; meanwhile, an upper low will move toward the coast of southern California. High temperatures on Thursday are expected to warm back up into the 80s with some places along the Trans Pecos reaching the lower 90s.
SFC ANALYSIS AT 18Z SHOWS A WARM FRONT SITUATED FROM SRN AL THRU NRN MS AND THE MEMPHIS METRO. SFC DEW POINTS HAVE STRUGGLED TO INCREASE DUE TO MIXING S OF THE WARM FRONT, WITH THE BEST MOIST AXIS FROM ERN TX THRU SERN AR. EVENTUALLY THIS WILL ADVECT AHEAD OF THE COLD FRONT NOW LOCATED FROM SERN MO THRU THE LITTLE ROCK AR AREA AND INTO ERN TX. RADAR IMAGERY INDICATES HIGH BASED CONVECTION WAS INTENSIFYING IN ERN MS AHEAD OF THE COLD FRONT. THE COLD FRONTAL ACTIVITY MAY CONTINUE TO INTENSIFY WITH INVERTED-V SOUNDING STRUCTURES INDICATIVE OF GUSTY WINDS, POSSIBLY INTO THE LOW END SEVERE RANGE.
348 PM CDT WED APR 6 2016 A COLD FRONT CONTINUES TO MAKE STEADY PROGRESS THROUGH THE AREA. COMBINED WITH COMPRESSIONAL WARMING AHEAD OF YET ANOTHER COLD FRONT.
441 PM MDT WED APR 6 2016 A HIGH AMPLITUDE RIDGE WILL REMAIN OVER THE REGION THROUGH THURSDAY NIGHT.
225 PM MDT WED APR 6 2016 STRONG NORTHWEST FLOW ALOFT WILL REMAIN OVER THE AREA DURING THE PERIOD AS A STRONG UPPER LEVEL RIDGE DOMINATES THE WESTERN PORTIONS OF THE CONUS.
HIGH PRESSURE RIDGING WILL BEGIN TO BUILD ACROSS THE FORECAST AREA LATE TONIGHT INTO THURSDAY. THE RIDGE AXIS WILL STAY OVER THE PACIFIC NORTHWEST. AND THIS COMBINED WITH A LARGE TROUGH OVER THE GREAT LAKES AND NORTH CENTRAL PLAINS AREAS WILL RESULT IN A CONTINUED NORTHWEST FLOW ALOFT ONE MORE DAY FOR OUR FORECAST AREA THURSDAY.
AT THIS TIME THE WEAKENING SURFACE COLD FRONT IS NOW THROUGH MOST OF OUR NORTHERN COUNTIES HOWEVER IT CONTINUES TO WASH OUT AS IT MOVES INTO OUR SOUTHERN MOST LOCATIONS. NEARSHORE WATER TEMPERATURES ARE IN THE LOW-70S AT THIS TIME SO NOT EXPECTING SEAFOG TO BECOME AN ISSUE. OVERALL THINKING WE WILL BE WARMER THAN WE HAVE BEEN THE PAST COUPLE OF MORNING WITH OUR COOLER SPOTS AROUND VICTORIA CROSSROADS.
149 PM CDT WED APR 6 2016 UPDATE TO INCREASE POPS CENTRAL IN ASSOCIATION WITH THE BAND OF SNOW AHEAD OF THE SURFACE WARM FRONT. GENERALLY ACROSS THE HIGHWAY 83 CORRIDOR. GENERALLY ACROSS THE HIGHWAY 83 CORRIDOR. THE HIGHER END OF THE ABOVE MENTIONED SUSTAINED/GUSTS IS MORE FAVORED IN BOWMAN AND ADAMS COUNTIES. LATEST WATER VAPOR IMAGERY SHOWS THE AFOREMENTIONED UPPER LOW INTO SOUTHEASTERN SOUTH DAKOTA.
NOTED SHORT WAVE/PV TROUGH DEPICTED NICELY IN RECENT WATER VAPOR IMAGERY WAS APPROACHING SIOUX FALLS AND SHOULD REACH THE ERN IA/MO BORDER TOWARD 18Z. WEAK LOW PRESSURE SYSTEMS WILL PASS ACROSS THE DAKOTAS INTO WISCONSIN AND BRUSH MAINLY NORTHERN AND EASTERN IOWA. THE GRASSLAND FIRE DANGER INDEX CREEPS INTO THE HIGH CATEGORY BUT THIS IS LARGELY DUE TO WIND.
THE SHOWERS WILL PERSIST INTO THE EVENING BEFORE DIMINISHING AS THE LOW AND SURFACE REFLECTION TROUGH EXITS SLOWLY TO THE EAST. LATEST SOUNDINGS SHOW DEEPLY SATURATED BELOW FREEZING PROFILES TO SUPPORT ALL SNOW. DEPENDING ON THE DEPTH OF THE ABOVE FREEZING BOUNDARY LAYER. A LONGWAVE UPPER RIDGE WILL BE OVER THE WESTERN CONUS INTO BRITISH COLUMBIA TO START OUT THE PERIOD. WITH AN EASTERN TROUGH.
THEY HANDLE THE UPPER TROUGH A LITTLE DIFFERENTLY WITH THE GFS MOST AMPLIFIED WITH THE WAVE AND COLDER AIR FOLLOWING. WE WILL CONTINUE THE HIGH CHANCE POPS OVER THE EASTERN CWA INTO THURSDAY NIGHT AND WE SHOULD SEE A CHANGEOVER TO SNOW.
MODEL SOUNDINGS INDICATE A GOOD SURFACE BASED INVERSION THIS MORNING WITH 30 MPH NEAR THE BASE OF THE LOW LEVEL INVERSION. THE APPROACHING COLD FRONT TIGHTENS THE GRADIENT BETWEEN THE HIGH PRESSURE TO THE EAST. THE HIGHEST WINDS WILL BE ACROSS NORTH CENTRAL ALABAMA AND AT HIGHER ELEVATIONS. THE HIGH PRESSURE TO THE EAST LOSES IT HOLD ON CONDITIONS HERE IN CENTRAL ALABAMA. SURFACE DEW POINTS ONLY REACH THE LOW TO MID 50S AND THIS WILL PROVIDE ONLY LIMITED BUOYANCY.
As of 16Z, an upper level ridge is in place over the western United States with a trough of low pressure above the Mississippi Valley. Towards the surface, a dome of high pressure is located across the Rockies and into the Central High Plains. Winds will generally be from a westerly direction tonight shifting to more of a northerly direction tomorrow as a weak cold front moves through the area. Highs tomorrow look to range from the lower 70s across west central and central Kansas to upper 70s along the KS/OK border.
/issued 835 AM CDT WED APR 6 2016/ Sending out an update to cancel the High Wind Warning and Wind Advisory for the area. Due to the weakened winds, the High Wind Warning and Wind Advisory have been cancelled. The first item of interest is a cold front barreling its way through the area this morning. Temperatures will be about 10 degrees cooler today and lessening winds should make it a nice afternoon and evening. This upper trough will weaken as it comes ashore along the West Coast Thursday, but disturbances in the southwesterly mid level flow could spark a few showers or storms across our area.
531 PM EDT WED APR 6 2016 A COLD FRONT WILL CROSS THE AREA OVERNIGHT. COOL HIGH PRESSURE BUILD INTO THE REGION FOR THE WEEKEND. A MID-LEVEL TROUGH AND ASSOCIATED COLD FRONT WILL MOVE THROUGH THE FORECAST AREA OVERNIGHT. THE HRRR SHOWS A FEW SCATTERED SHOWERS AHEAD OF THE COLD FRONT DEVELOPING THIS EVENING. THE MAIN BAND OF CONVECTION ALONG THE COLD FRONT WILL APPROACH THE CSRA AROUND 06Z MOVING EAST OF FORECAST AREA BY 15Z. STRONG LIFT ALONG THE COLD FRONT MAY BE SUFFICIENT TO INITIATE ISOLATED. FOLLOWED THE HIGHER LOW TEMPERATURE GUIDANCE BECAUSE OF MIXING ASSOCIATED WITH THE FRONT. COLD FRONT WILL BE MOVING OFFSHORE THURSDAY MORNING WITH THE UPPER LEVEL TROUGH DIGGING INTO THE AREA THURSDAY AFTERNOON WITH THE AXIS OVER THE REGION THURSDAY NIGHT.
240 PM CDT WED APR 6 2016 SATELLITE IMAGERY INDICATES A PRONOUNCED TROUGH WORKING ITS WAY FROM THE PLAINS TO THE SOUTHERN STATES.
DRAGGING A COLD FRONT TOWARDS THE AREA. AS INDICATED WITH DEWPOINTS RISING SOME 20 DEGREES OR SO WITH THE WARM FRONT LIFTING THROUGH. A DEEP TROUGH AMPLIFYING OVER THE ERN CONUS.
WITH ENERGY TOPPING THE WESTERN CANADA RIDGE AND DIVING SOUTH INTO THE CENTRAL/EASTERN CONUS. FOR THE MOST PART THE PERIOD LOOKS DRY UNDER RIDGING ALOFT.
First off another early spring windy day with WSW wind responding to a low pressure system along the Hawkeye State and Show-Me State line. High clouds will be lowering to mid deck soon and then over to convective showers ahead of the cold front along the MS River. Excellent wind advisory in effect til 00z and winds are generally 15 gusting to 35 mph with highest gusts in the low 40s mph.
1231 PM CDT WED APR 6 2016 SHOWERS AND ITS ASSOCIATED COLD FRONT IS CURRENTLY MOVING THROUGH ARKANSAS.
LOW LEVEL THERMAL TROUGH AMPLIFIES AS THE NIGHT GOES ON.
A COLD FRONT WILL APPROACH THE FORECAST AREA THIS AFTERNOON WITH VERY ISOLATED SHOWERS.
THE SHARP UPPER TROUGH THAT DROVE THIS STRONG FRONT INTO THE AREA EARLIER TONIGHT WILL STEER INTO THE UPPER MIDWEST LATER TODAY WITH DRY SUBSIDENT NORTHWEST FLOW ALOFT OUR AREA EXPECTED THROUGH TONIGHT AS WELL. RMCQUEEN A BACK DOOR COLD FRONT.
HIGH PRESSURE WILL STEADILY BUILD FROM THE WEST TODAY. AND 50S-60S FOR THE HIGHER ELEVATIONS.
Axis of upper trough was pushing southeast across central portions of Kansas early this morning with rain shield ahead of it. With steep low level lapse rates and good mixing again, winds will again be strong but from the northwest today as the surface cyclone passes through the southern Great Lakes. Stayed closer to the warmer end of guidances for highs in the deep mixing.
A COLD FRONT WILL BRING A CHANGE TO NORTH WINDS BETWEEN 12Z AND 15Z. /ISSUED 503 AM CDT WED APR 6 2016/ THE UPPER LEVEL TROUGH THAT BROUGHT ALL THE WINDS YESTERDAY AND OVERNIGHT WILL BE MOVING THROUGH THE CENTRAL PLAINS TODAY AS RIDGING AND NORTHWEST FLOW FILL IN BEHIND. THE NORTH AND EASTERN COUNTIES WILL STILL BE FEELING SOME OF THE EFFECTS OF THE TROUGH TODAY AS NORTHWEST WINDS MOVING THROUGH THE BACKSIDE OF THE TROUGH WIP THROUGH THE TIGHT PRESSURE GRADIENT. THE NORTH WINDS WILL KEEP DAYTIME HIGHS ABOUT 10 DEGREES COOLER THAN YESTERDAY AND CLOSER TO CLIMO. A BACKDOOR COLD FRONT WILL MAKE ITS WAY THROUGH THE AREA THURSDAY. WITH UPPER LEVEL RIDGING IN PLACE.
GENERALLY ACROSS THE HIGHWAY 83 CORRIDOR. WHEN COUPLED WITH LOW FREEZING LEVELS.
639 PM EDT WED APR 6 2016 AN AREA OF WILL AFFECT THE REGION IN ADVANCE OF A COLD FRONT. HIGH PRESSURE RIDGE WILL TRY AND BUILD IN THURSDAY NIGHT.
BY DAYBREAK THURSDAY A COLD FRONT IS ANTICIPATED TO DROP ACROSS THE AREA AND SHIFT WINDS BACK OUT OF THE NORTH.
234 PM EDT WED APR 6 2016 MOISTURE INCREASES WITH COLD FRONT TONIGHT.
356 PM CDT WED APR 6 2016 A cold front passed through the area this morning. A temperature gradient will setup across the area on Thursday as highs in the lower 70s occur across extreme southeastern Kansas and far southwestern Missouri to the low to middle 60s across central Missouri. An upper level trough and cold front will push through the area Thursday afternoon, a few light rain shower or sprinkles will be possible across central Missouri, but with a dry air mass in place rainfall amount will be light. The cold front will bring gusty northwesterly winds back to the area and a even drier air mass Thursday afternoon.
BUT A COLD FRONT WILL BRING RAIN TONIGHT AND THURSDAY. LOW PRESSURE DEVELOPING TOWARD THE GREAT LAKES TODAY WILL RESUME SOUTHERLY FLOW OVR THE REGION. MOISTURE WILL ALSO BE ON THE INCRS AND IMPROVING ASCENT WITH THE APPROACH OF THE SYSTEMS COLD FRONT IS FORECAST TO SPAWN FAIRLY WIDESPREAD SHOWERS BY TONIGHT.
Cold front has cleared the forecast area and lingering showers will exit northwest AR over the next hour or so.
AT 3 PM CDT SURFACE ANALYSIS EXTENDS A COLD FRONT FROM NORTHERN INDIANA SOUTHWESTWARD THROUGH THE MISSOURI BOOTHEEL AND INTO SOUTH CENTRAL ARKANSAS. H5 ANALYSIS EXTENDS A TROUGH AXIS FROM NORTHERN WISCONSIN SOUTHWARD THROUGH NORTHERN LOUISIANA. A REINFORCING COLD FRONT WILL MOVE THROUGH LATE ON THURSDAY AS A SUBTLE WAVE MOVES THROUGH THE UPPER ROUGH AXIS ALOFT.
334 PM CDT WED APR 6 2016 COLD FRONT (AND ITS ASSOCIATED CLOUDS) CONTINUING TO MOVE SOUTH THIS AFTN AND SHOULD BE OFF THE COAST SHORTLY. POSITIVELY TILTED UP- PER LEVEL RIDGE TO THE WEST WILL HELP KEEP A DEEP NW FLOW ALOFT OVER THE REGION. CHANGES WITH THE PATTERN PROGGED FOR THE END OF THE WEEK AS THE NEXT UPPER LOW/TROF BEGINS TO DEVELOP JUST OFF THE SRN CA COAST. THEN INCREASING THEM SUN/MON AS THE NEXT COLD FRONT APPROACHES/ MOVES ACROSS THE AREA. 41 A WEAK COLD FRONT WILL PUSH OFF THE UPPER TEXAS COAST LATER THIS EVENING AND TONIGHT TURNING WINDS TO THE NORTHWEST. WINDS SHOULD DECREASE RATHER QUICKLY WITH HIGH PRESSURE SETTLING OVER THE NW GULF TOMORROW MORNING.
A BAND OF PRECIP IN THE 850 MB WARM ADVECTION ZONE SOUTH OF THE LOW WILL SPREAD INTO DVL BASIN MID AFTN AND THEN INTO THE RRV AROUND 00Z.
TODAY THROUGH THURSDAY NIGHT UPPER LOW IS OVER EASTERN SD. BACKDOOR COLD FRONT PUSHES WESTWARD INTO THE CWA TONIGHT. AS LOW PRESSURE SLIDES INTO MN.
A WEAK LEE TROUGH HAS DEVELOPED OVER SOUTHEAST COLORADO. SOUTHEAST ACROSS THE HIGH PLAINS AND INTO THE LOWER MISSISSIPPI VALLEY. A RIDGE OF HIGH PRESSURE TO THE WEST. A WEAK COLD FRONT SHOULD SLIP THROUGH AS WELL. SLIGHTLY COOLER TEMPERATURES ARE FORECAST WITH HIGHS IN THE MID 60S. WITH COOLER TEMPERATURES FORECAST BEHIND THE COLD FRONT AND A SLIGHT BUMP IN DEWPOINTS.
A RIDGE OF HIGH PRESSURE WILL BRING ABOVE NORMAL TEMPERATURES AND DRY CONDITIONS TO THE REGION TODAY AND THURSDAY. HIGH PRESSURE CONTINUES TO BUILD INTO THE REGION BRINGING WELL ABOVE NORMAL TEMPERATURES TODAY. FARTHER SOUTH WELL OFF THE MEXICAN COAST AN UPPER LEVEL LOW PRESSURE IS STARTING IS SLOWLY DRIFTING TO THE NORTH AND EAST. LATE IN THE AFTERNOON A FEW SHOWERS ARE POSSIBLE OVER THE HIGHER ELEVATIONS OF TRINITY COUNTY.
303 PM EDT WED APR 6 2016 MOISTURE INCREASES WITH COLD FRONT TONIGHT.
WHILE STILL IN THE LOW TO MID 40S THE EXPECTATION IS THAT BY 00Z THIS EVENING WE SHOULD SEE A GOOD PORTION OF THE AREA RECOVER BACK INTO THE LOW 50S.
258 PM CDT WED APR 6 2016 19z/2pm surface analysis shows 1000mb low over Lake Michigan, with cold front extending southward along the I-57 corridor. Meanwhile, an area of showers beneath the trailing upper-level trough currently over eastern Iowa will drop southeastward into central Illinois this evening. Overnight lows will range from the middle 30s northwest of the Illinois River, to the lower 40s south of I-70. Next clipper system currently in northern Alberta will race southeast into northern Minnesota by Thursday morning before weakening, while an upper trough swings across the Great Lakes. However, general trend in the forecast was to reduce the overall PoP's by about 20- 30%, concentrating the higher values over the southwest CWA (near the clipper remnants) and the far northeast CWA (closer to the upper trough).
304 PM CDT WED APR 6 2016 A broad upper level trough across the upper and mid MS river valley this afternoon will amplify as it shift east into the Great Lakes States and Mid Atlantic States by Thursday afternoon. Shorter wave-length upper level troughs embedded within the northwesterly flow aloft, should remain north and east of the CWA.
THIS ENVIRONMENT FAVORS EFFICIENT COOLING OF VALLEYS WITH LOCALLY WARMER LOCATIONS OVER HIGHER TERRAIN AND URBAN AREAS. SOME INTERMITTENT HIGH CLOUDS EAST OF A PACIFIC UPPER LOW COULD HAVE A MINOR IMPACT ON LOW TEMPERATURES OVER WESTERN COUNTIES TONIGHT. AND THE LOW DEW POINTS AND RETURNING SOUTHWEST WINDS SHOULD PROMOTE ABOVE NORMAL MAXES FOR APR 7.
HIGH PRESSURE WILL BUILD ALOFT AND THE AIRMASS WILL REMAIN DRY.
THE AIRMASS IS CHARACTERIZED BY TEMPERATURES IN THE 70S AND ONLY MODEST LOW-LEVEL MOISTURE WITH DEWPOINTS IN THE LOW 50S.
130 PM EDT WED APR 6 2016 LOW PRESSURE OVER NEAR LAKE MICHIGAN WILL MOVE EAST TO THE THUMB OF MICHIGAN THIS EVENING. A TRAILING COLD FRONT WILL CROSS THE FORECAST AREA TONIGHT. THE LOW WILL DRIFT INTO QUEBEC WITH A SERIES OF TROUGHS ROTATING ACROSS THE GREAT LAKES INTO THE WEEKEND. POPS WILL RAMP UP THIS AFTERNOON AS THE UPPER TROUGH AND ASSOCIATED COLD FRONT APPROACH FROM THE WEST AND THE UPPER LEVEL DIVERGENCE ASSOCIATED WITH THE RIGHT ENTRANCE REGION OF THE JET OVERSPREADS THE REGION. MODELS IN GOOD AGREEMENT TRACKING THE LOW ACROSS SE LOWER MICHIGAN THIS EVENING AND ACROSS LAKE HURON OVERNIGHT. DRAGGING STRONG COLD FRONT ACROSS THE FORECAST AREA. DEEP UPPER TROUGH DIGS OVER THE AREA BY THE WEEKEND.
THE LARGE-SCALE PATTERN WILL CHANGE VERY LITTLE ON FRI WITH A MEAN MID/UPPER TROUGH OVER THE GREAT LAKES AREA AND AN UPPER LEVEL RIDGE OVER THE ROCKIES AND GREAT BASIN AREA.
TONIGHT THROUGH THURSDAY IMAGERY SHOWS SHOWS RIDGE/TROF/RIDGE PATTERN ACROSS THE CONUS FROM W TO E W/ WY UNDER NW FLOW. JET AND ASSOCIATED WEAK SW MOVING SWD FROM SCNTRL CANADA INTO THE HIGH/NRN PLAINS. WEAK LEE SIDE LOW/TROF EXIST OVR THE BIGHORN BASIN AND NERN/ERN WY. THURSDAY NIGHT THROUGH WEDNESDAY HIGH PRESSURE ALOFT WILL BE OVER THE AREA WITH EASTERLY LOW LEVEL WINDS AND DRY CONDITIONS WITH COOL CONDITIONS.
THE LOW PRESSURE SYSTEM CURRENTLY 700 MILES SOUTHWEST OF LOS ANGELES WILL CONTINUE STREAMING PLENTY OF HIGH CLOUDS OVER THE REGION.
A LARGE AREA OF HIGH PRESSURE IS MOVING EASTWARD AWAY FROM THE DELMARVA COAST. FOLLOWING QUICKLY BEHIND THE RIDGE IS AN UPPER LOW TREKKING ACROSS THE CENTRAL GREAT LAKES. OUT OF THIS LOW. A TROUGH STRETCHES SOUTHWARD ACROSS THE NORTHERN GULF OF MEXICO TO SOUTH TEXAS.
THIS WILL LEAD TO MUCH COOLER TEMPERATURES ALONG WITH DECENT CHANCES FOR RAINFALL. 24 HR TEMPERATURE TRENDS FOR EARLY THIS AFTERNOON ARE GENERALLY RUNNING SEVERAL DEGREES WARMER WITH READINGS WELL INTO THE 90S ON THE LOWER DESERTS. THE CIRRUS OVERSPREADING THE REGION IS ASSOCIATED WITH AN UPPER LOW CENTERED WEST OF BAJA. UPSTREAM OF THE RIDGE IS A DEEP TROUGH. THE MODELS CONTINUE TO DEPICT THE BAJA LOW TRACKING NORTHEASTWARD IN RESPONSE TO THE APPROACH OF A MIDDLE BRANCH TROUGH. CURRENTLY UPSTREAM OF THE RIDGE.
THE WATER VAPOR IMAGERY SHOWS A SERIES OF SHORT WAVE TROUGHS MOVING SOUTHEAST TOWARD THE FORECAST AREA.
COLD FRONT WAS ALMOST THROUGH THE ENTIRE FORECAST AREA. SECONDARY SURGE OF COOLER AIR MOVES INTO THE AREA ON THURSDAY.
256 PM CDT WED APR 6 2016 A STRONG 500 MB TROUGH WILL DIVE SE ACROSS THE SOUTH CENTRAL PLAINS STATES TONIGHT AND WILL MOVE OFF QUICKLY TO THE EAST TOMORROW. THE PASSAGE OF THIS TROUGH WILL USHER THROUGH A WEAK COLD FRONT THROUGH THE AREA THIS AFTERNOON AND TONIGHT. THIS WEAK AND DRY COLD FRONT IS STARTING TO LIMP THROUGH DEEP SOUTH TX THIS AFTERNOON WITH ONLY AN INCREASE IN CLD COVER AND A WIND SHIFT MARKING ITS PASSAGE AS THE 12Z BRO SOUNDING SHOWS VERY LITTLE DEEP LAYER MOISTURE FOR THE FRONT TO INTERACT WITH. THE FRONT WILL SLIDE SOUTH OF THE RIO GRANDE LATER THIS EVENING AND TONIGHT ALLOW FOR SOME COOLER AND DRIER AIR TO START FILTERING INTO THE REGION. THIS FOG SHOULD BE PRETTY LIMITED AS THE LOWER DEWPOINTS START MOVING IN FROM THE NORTH.
COLD FRONT CURRENTLY STRETCHES FROM LOW PRESSURE OVER GREAT LAKES SOUTH/SOUTHWESTWARD THROUGH ARKANSAS INTO NORTHWEST LOUISIANA AND THEN INTO SOUTHERN TEXAS. PRE FRONTAL TROUGH IS LOCATED A BIT FARTHER EAST WITH ISOLATED TO SCATTERED SHOWERS MAINLY OVER CENTRAL AND NORTHERN MISSISSIPPI.
IT WILL BE A FEW DEGREES COOLER HIGH TEMPERATURE WISE THURSDAY AS COOLER AIR ALOFT MOVES SOUTH INTO THE REGION. H850MB TEMPS WILL BE ABOUT 5 DEGREES COOLER OVER THOSE OBSERVED TODAY.
215 PM PDT WED APR 6 2016 Amplifying high pressure over the region will bring a rapid warming trend to the Inland Northwest.
TO KEEP MINIMUM TEMPERATURES AT OR ABOVE FREEZING EAST OF I-25. MINIMUM TEMPERATURES LIKELY A FEW DEGREES COOLER THAN WEDNESDAY NIGHT DUE TO SLIGHTLY LESS WIND.
TEMPERATURES WILL BE HELD ABOVE FREEZING TONIGHT BY THE WARMING AND INSTABILITY.
HIGH PRESSURE ALOFT WILL BRING DRY CONDITIONS AND A WARMING TREND TO UTAH THROUGH THURSDAY.
WITH COOLER AIR TO THE EAST ANY -RA/SN WILL TRANSITION TO MAINLY SNOW EARLY. WITH CLOUDS AND ONLY MINOR COLD ADVECTION TEMPERATURES SHOULD RANGE A FEW DEGREES EITHER SIDE OF FREEZING. OPTIMISTICALLY HAVE TEMPERATURES INTO THE LOWER 40S BUT MAY NEED REVISITING DEPENDING ON CLOUDS.
335 PM MDT WED APR 6 2016 A HIGH AMPLITUDE RIDGE WILL REMAIN OVER THE REGION THROUGH THURSDAY NIGHT.
A SERIES OF PRE FRONTAL TROUGHS ARE HELPING TO INITIATE SOME SHOWER ACTIVITY OVER THE MID STATE AND JUST TO THE WEST. UPPER TROUGH WILL DIG ACROSS THE U.
WEAK UPPER LEVEL AND SURFACE RIDGING SHOULD RESULT IN A LULL IN THE PRECIPITATION FOR MOST OF THE AREA ON THURSDAY.
A WEAK COLD FRONT IS PUSHING INTO THE REGION FROM THE NORTHWEST. A DRIER AND SLIGHTLY COOLER AIR MASS WILL MOVE BACK INTO THE REGION BEHIND THE BOUNDARY AND A STRING OF NICE SPRING LIKE WEATHER IS EXPECTED THROUGH THE FIRST HAVE OF THE WEEKEND.
1st off another early spring windy day with wsw wind responding to a low pressure systemalong Hawkeye State and Show Me State line. High Clouds willbelowering to mid deck soon and then over to convective showers ahead of the cold front along the MS River. Excellent wind advisory in effect til 00z and winds are generally 15 gusting to 35 mph with higest gusts in the low 40 mph.
A STRONG RIDGE OF HIGH PRESSURE WILL BRING WARM AND DRY WEATHER TO WESTERN WASHINGTON.
WEAK COLD FRONT CONTINUES TO PRESS SOUTHWARD AT THIS TIME WITH WINDS VEERING TOWARDS THE NORTH-NORTHEAST.
THE EFFECTS OF THE COLD FRONT WILL CONTINUE TO BE SEEN INTO THIS EVENING AS DEWPOINTS.
THE COLD FRONT IN THE MISSISSIPPI VALLEY SWING THROUGH THE OUR AREA TONIGHT. A SECONDARY COLD FRONT WILL PUSH IN ON THURSDAY. SECONDARY COLD FRONT BEHIND THURSDAY MORNINGS INITIAL FRONT WILL MOVE THROUGH THE FORECAST AREA BY THURSDAY EVENING AS UPPER TROUGH DIGS SOUTH ACROSS THE EASTERN THIRD OF THE COUNTRY.
IS THE CLASSIC SPRING SIGNAL FOR WARMER THAN ANTICIPATED MAXES. RIDGE MOVES CLOSER WITH LIGHTER WINDS AND LOSS OF DOWNSLOPE FLOW SO MAXES AND MINIMUMS FRI NIGHT MAY BE A DEGREE OR FEW COOLER.
South winds may gust after 03z at KABI as the low-level jet develops, but should remain under 10 kts elsewhere. /ISSUED 349 PM CDT Sat Jun 20 2015/ (Tonight and Sunday) Southwest/northeast oriented upper trough over West Central Texas will gradually push east Sunday, as an upper ridge builds in from the northwest.
MOZLEY WEAK COLD FRONT WHICH PUSHED THROUGH THE PLAINS EARLIER TODAY HAS BROUGHT E-NE WINDS AND SLIGHTLY COOLER TEMPS TO THE PLAINS/ERN MOUNTAINS. WILL KEEP JUST SOME VERY LOW POPS FOR A FEW OF THE HIGHER PEAKS INTO EARLY EVENING. WITH OVERNIGHT LOWS JUST SLIGHTLY COOLER THAN SAT MORNING MOST LOCATIONS. WITH READINGS NEAR/OVER 100F ACROSS THE LOWER ARK VALLEY.
UPPER RIDGE IS CENTERED NEAR THE LOWER COLORADO RIVER VALLEY WITH CLEAR SKIES ACROSS ARIZONA. GIVEN THIS AND WITH THE HIGH NEARBY AND SUBSIDENCE ALOFT.
VFR MOSTLY CLOUDY DUE TO A WEAKENING COLD FRONT THAT MOVES ACROSS OREGON AND CENTRAL IDAHO BY SUNDAY AFTERNOON. COLD FRONT DISSIPATES AS IT PUSHES EAST TO AROUND KREO-KMAN-KLLJ SUNDAY EVENING.
70/DD /ISSUED 212 PM CDT SAT JUN 20 2015/ CURRENT IR AND WV SATELLITE IMAGERY SHOWS THE UPPER TROUGH SITUATED JUST WEST OF THE APPALACHIANS. WITH DRY AIR FILTERING AROUND THE WESTERN EDGE OF THE TROUGH. UPPER LEVEL RIDGING WILL BEGIN TO BUILD IN OVERNIGHT AS THE UPPER TROUGH SHIFTS TO THE EAST. AND WITH THE STRONG RIDGE IN PLACE.
SUBTROPICAL RIDGE AXIS. GIVEN THE HIGH PW/CAPE AND LOW CINH ENVIRONMENT. WITH THE RIDGE AXIS CENTERED NORTHWARD. THE RIDGE IS PROGGED TO WEAKEN AND SETTLE BACK TO THE SOUTH TWD THE END OF THE WEEK AND INTO THE WEEKEND AS THE PATTERN ALOFT EVOLVES INTO A MORE MERIDIONAL WRN CONUS RIDGE/ERN CONUS TROF. WITH THE HIGH SFC DEWPOINTS YIELDING UNCOMFORTABLE RH VALUES AND APPARENT TEMPS CONTINUING TO REACH NEAR 100 DEGREES IN THE AFTERNOON.
The synoptic pattern this afternoon features a building ridge across the south-central CONUS, which will attempt to build into at least southern KY through the short term period. This will place the Ohio Valley on the periphery of the ridge and on the southern edge of the stronger mid-level flow, allowing for ridge-riding disturbances to affect the region. A PV anomaly will be pushing through portions of IN/OH in the afternoon, interacting with a slow-moving cold front across IN/OH. The strong heating coupled with moisture pooling just south of the front (dewpoints in the low to mid 70s) will lead to a strongly unstable airmass characterized by MLCAPEs of 2000-3500 J/kg. Overnight lows will be in the low to mid 70s.
SATELLITE AND UPPER AIR OBSERVATIONS SHOW A MID AND UPPER LEVEL TROUGH OVER CENTRAL TEXAS TO THE RIO GRANDE. 5 INCHES OVER THE LOWER PECOS VALLEY TO 2. THE OUTFLOW FROM THE MCS COOLED OFF TEMPERATURES TO NEAR OR SLIGHTLY BELOW FORECASTED LOWS AND HAVE RE-ESTABLISHED TRENDS TO THE TEMPERATURES AND GONE 1 TO 3 DEGREES COOLER ON THE LOWS. CLOSER TO THE UPPER LEVEL TROUGH AXIS AND HIGHEST PW AIR. 0 INCHES AND THE BEGINNING OF THE TROUGH WEAKENING.
CLOSER TO THE UPPER LEVEL TROUGH AXIS AND HIGHEST PW AIR. 0 INCHES AND THE BEGINNING OF THE TROUGH WEAKENING.
WITH DELINEATING PERIODS WITH THE HIGHEST PRECIP PROBABILITIES THE MAIN FORECAST CHALLENGE.
1047 PM EDT SAT JUN 20 2015 A TROUGH OF LOW PRESSURE WILL COMBINE WITH MOISTURE FROM THE REMNANTS OF TROPICAL STORM BILL TO PRODUCE RAINY WEATHER TONIGHT THROUGH SUNDAY.