Aikyam-Lab/Synoptic-Bench huggingface dataset:
1026 PM EDT Wed Mar 15 2017 Weakening low pressure tracks slowly towards the Canadian Maritimes through Thursday.
The back edge of the mostly high-level cloudiness also depicting a mid/upper level trough axis extended from northern Arizona south/southwestward into northwest Sonora Mexico.
An early afternoon analysis showed high pressure centered over Missouri, and extended across much of the Mississippi River Valley. Visible satellite imagery indicated clear skies prevailed over the region, and mid afternoon readings were in the low 30s under light and variable winds. For tonight, expect another hard freeze with temperatures dropping into the low/mid 20s, with upper teens expected across portions of southern Illinois, southwest Indiana, and southwest KY. On Thursday, a weak warm front will pass largely north of the area during the day Thursday.
Cigs wl likely lower to near MVFR conditions Thursday evening with areas of light snow/sleet and light freezing rain spreading across the area during the night. Dry air and high pressure over southern Wisconsin will lead to another cold night with clear skies and light winds. Low temperatures are tricky tonight because models seem to be reacting to the weak 925mb warm air advection on the west side of the ridge. Temps Thu are expected in the mid to upper 30s with return southerly flow around the high.
Temperatures should start to fall off more rapidly rest of the night as high pressure ridge axis moves across southern WI resulting in light boundary layer winds and widespread clear skies. Offshore flow will turn to the south to southeast on Thursday ahead of approaching strengthening warm front.
/issued 238 PM CDT Wed Mar 15 2017/ SHORT TERM (Tonight through Thursday Night):Fairly benign weather pattern expected during the short term as a weakening upper level ridge over the SW slides east into Texas Thursday.
730 PM EDT Wed Mar 15 2017 High pressure will build into the region tonight bringing clearing skies and continued very cold with lows dropping into the teens. NW flow and slow departure of low pressure to the east has allowed for the bands to shift somewhat east and interaction with more land than water was beginning to reduce overall snow shower coverage. High pressure will move in and bring mostly sunny skies and send temps into the middle 30s.
Min temps should be several degrees warmer than this morning.
1157 PM CDT Wed Mar 15 2017 H5 analysis from earlier this morning has a longwave trough of low pressure over the eastern half of the CONUS with a ridge of high pressure located from the four corners, north into southern portions of Alberta and southern Saskatchewan. Closed low pressure was located over northern New York state with high pressure located over northern Mexico. At the surface, high pressure was anchored across the Ozarks and mid Mississippi valley. Elsewhere, temperatures were in the 40s with 50s along the highway 83 corridor.
Little in the way of forcing and subtle drier air in the lower levels is keeping shower activity at a minimum. Sky cover is highly variable, with mid decks appearing and vaporizing fairly quickly, due to the presence of a mid through upper level low centered over northern flow. Convective activity is expected to remain below normal due to the back ground ridging, unfavorable flow for development of island cloud lines, and lack of a larger scale trigger.
702 AM EDT TUE AUG 9 2016 A weak warm front will lift north across the area today into tonight.
959 AM CDT TUE AUG 9 2016 Morning forecast update will focus on timing/placement for initiation of convection this evening as HIRES models indicate cluster of convection developing mid-afternoon over southeast MT and moving east along developing warm frontal boundary, entering southwest zones in the evening. Otherwise current boundary will push through most of the fa with high pressure nosing in from the north. As upper low begins to cross the northern rockies tonight low pressure becomes better organized over the northern high plains. Associated E-W oriented warm frontal boundary through central SD during the evening lifts northward to the SD/ND border region by morning.
This boundary should dissipate over the next 24 hours as deep southeasterly flow around Bermuda High Pressure continues. Western Atlantic ridging should strengthen across the Forecast Area this period. Still with greater ridging, we will trend shower/thunderstorm POPs lower as we progress through the period with more geographical area covered by slight chance by Thu. Not much change in the high humidity.
The closed low in south central Washington/north central Oregon will continue to slowly migrate east, crossing the border into Canada from north central Montana Wednesday afternoon. a weak trough swinging around the low will bring a round of light showers that will brush the northern portions of mostly the west side this morning. Heights rise into the latter half of the week as the upper low moves east and an upper level ridge builds over the west coast.
1134 AM EDT TUE AUG 9 2016 High pressure across the region will slowly retreat into the Atlantic through tonight.
618 AM CDT TUE AUG 9 2016 Convective elements from the overnight MCS have all but dissipated, however several CAM solutions continue to indicate isolated weak elevated convection could still form along the ND/SD state line associated with the tail end of a 500mb trof this morning.
After just 1 day with diminished rain chances yesterday, look for at least scattered storms to develop mainly during the afternoon as dew points hover in the low to mid 70's.
Latest water vapor imagery shows approaching upper low pressure system over WA/ID.
A deepening trough of low pressure will bring night through morning low clouds and fog west of the mountains, along with below normal temperatures for many places through midweek. A warming trend and shrinking marine layer is then expected for the end of the week into the weekend as high pressure builds aloft. Max temps will be a little cooler today esp in the Santa Clarita vly due to the newly introduced marine air. Broad west coast trofing will continue Wednesday and the day will be very similar to Today.
there is an apparent trough seen on satellite extending from southeast Wyoming to west central Colorado that will provide some lift. we have enough moisture for the scattered storms over the high country. Overall there will still be enough moisture for isold to wdly sct tstms this aftn and evening over the higher terrain. As for high 850-700 mb temps rise a few more degrees today which will allow for highs in the lower to mid 90s across nern CO.
Well developed upper low apparent on satellite this morning over WA/OR. Ahead of this feature stronger southwest flow aloft continues to pull pacific moisture into the area while at the same time deepening surface-850mb low pressure over our area. The low level low pressure is currently centered just south of Billings on the latest analysis and is expected to drift into southeast Montana this afternoon as the upper low drifts East-Northeast into the Idaho panhandle by this evening. There is 40-50kts of shear available to support an isolated tornado in the higher dew point airmass mainly across Carter and Fallon counties. A cold front will push through western areas overnight as the upper low over northern Idaho progresses into southern Alberta.
706 AM EDT TUE AUG 9 2016 A weak warm front will lift north across the area today into tonight.
At 2 am CDT, skies were partly cloudy with muggy temperatures in the lower and middle 70s. Mid-state weather over the next few days will be largely dominated by the migration of bands of deep moisture, associated with a Gulf coastal low pressure area. As the low pressure area retrogrades westward toward the central Gulf Coast on Wednesday, bands of associated deep moisture will also rotate westward.
/issued 454 AM CDT TUE AUG 9 2016/ Water vapor imagery indicates the upper level ridge holding serve across much of the SE CONUS with a notable clockwise flow aloft. Convection is confined to the northern Gulf this morning under the ridge axis with some mid and upper level clouds seen over parts of our region per IR satellite. The heat is not expected to relent much through the rest of the week, but disturbances riding underneath the ridge along the Gulf coast will help to increase rain chances through mid to late week. On a more positive note, the weekend still looks more promising for higher rain chances and milder temperatures thanks to a cold front tracking southward from the Plains later this week.
927 AM PDT Tue Aug 9 2016 A deep and slow moving low pressure system will move across the area over the next few days. This low will bring cooler temperatures and the threat of showers and thunderstorms.
430 AM PDT TUE AUG 9 2016 A deepening trough of low pressure will bring night through morning low clouds and fog west of the mountains, along with below normal temperatures for many places through midweek. A warming trend and shrinking marine layer is then expected for the end of the week into the weekend as high pressure builds aloft. Max temps will be a little cooler today esp in the Santa Clarita vly due to the newly introduced marine air. Broad west coast trofing will continue Wednesday and the day will be very similar to Today.
Otherwise current boundary will push through most of the fa with high pressure nosing in from the north. As upper low begins to cross the northern rockies tonight low pressure becomes better organized over the northern high plains. Associated E-W oriented warm frontal boundary through central SD during the evening lifts northward to the SD/ND border region by morning.
902 AM EDT TUE AUG 9 2016 High pressure across the region will slowly retreat into the Atlantic through tonight.
Weak low pressure over the southeastern United States will continue to slowly retrograde to the west into the Mississippi Valley through tonight.
/Issued 318 AM CDT TUE AUG 9 2016/ Pacific NW upper cyclone and associated longwave trof. with the upper ridge re-establishing itself.
While cold air is advecting down from the northeast it is expected to but up against a warm front that will push back toward the northeast by mid afternoon. GAH PREVIOUS SHORT TERM DISCUSSION: Upper low over the Pacific Northwest is beginning to move east very slowly this morning.
The inverted surface trof that was partially responsible for the narrow axis of 1 to 2 inches of rainfall just S of I64 has pivoted W of the area. Temps will top out in the upper 80s across the Lowlands with generally 70s in the mountains. A persistent tropical system in the Gulf of Mexico will loft lobes of moisture northward into a conditionally unstable air mass giving aftn tstms despite being under high pressure. a series of low pressure systems will ride up and along the front. Temperatures should trend a bit cooler. Allowed the low stratus over KBKW to lift by 13z and sct out with VFR conditions anticipated today for all terminals amid a sct to bkn 4 to 5 thsd foot cu field.
A dry, weak upper level trough prevails along the West Coast.
A trough that has been anchored to the left coast the past few days will begin to rotate inland today. A low pressure trough that has been relatively stationary along the west coast will begin to shift east and de-amplify Wed night and Thu. The trough will shift into the high plains on Fri as high pressure develops off and along the west coast. Expecting VFR conditions to dominate for today with storms developing over the higher terrain mainly south of I-70 this afternoon with a few storms impacting some valleys through the evening.
The higher moisture content near the surface may also be ample for the generation of light fog/haze overnight. Warm advection will force 850mb temperatures to rise a couple of degrees compared to yesterday, allowing highs to rise into the low 90s under remnant subsident layer. Quick transition to a building upper ridge Tuesday night into Wednesday will end any convective threat through midweek as forecast soundings indicate substantial capping.
Any lingering showers should wane through the mid-morning hours as the low-level jet weakens.
The upper low centered to the northwest of Baker City is still projected to move into the ID panhandle this afternoon. Scattered showers were occurring near the low center, and will move into northern portions of our forecast area (mainly north of Baker City and Mccall) this afternoon. The convection will diminish this evening as the low moves into western Montana. Upper level low over southern Washington will bring scattered showers and thunderstorms to the extreme northern parts of the forecast area today, mainly north of Baker and McCall. The low pulls to the north and east tonight, taking the shower threat with it, diminishing the winds, and allowing temperatures to recover slightly on Wednesday. However, a piece of energy drops down the back side of the trough on Wednesday and tries to deepen over northern Nevada.
However with high pressure centered over the mid atlantic and lower pressure along the Florida panhandle a low level southeast flow is bringing more clouds across SE TN and SW NC where rain chances there and across the northern Plateau will be higher due to upslope flow.
An upper level trough stretched along much of the West Coast will maintain seasonable weather conditions through midweek. High pressure will then build over the region for the second half of the workweek and result in a gradual warming trend, especially inland. An upper level low remains centered over the state of Washington this morning with the trough axis extending southward along much of the West Coast. Not expecting much change with respect to daytime temperatures compared to those yesterday as the broad trough remains over the region through midweek. Warmest and driest conditions will be inland and in the higher elevations while cooler temperatures persist near the coast in response to the marine influences. A gradual warming trend is then expected for the latter half of the work week that will continue into the upcoming weekend as high pressure develops aloft.
Showers will taper today and end tonight as an upper low moves away from the region.
959 AM EDT TUE AUG 9 2016 Weak low pressure continues to slowly retrograde over the western panhandle as its mid level counterpart maintains moist southwest flow aloft. Atmosphere remains primed for precipitation once again this afternoon as abundant mean layer moisture (PWATs at or above 2") and low/mid level troughiness supports numerous showers and isolated thunderstorms this afternoon. Near surface flow has veered a bit more southerly this morning as low pressure gets shunted to the west and high pressure builds closer to the area from the western Atlantic. Southerly flow over the local waters today as low pressure migrates west over the Panhandle and high pressure begins to nose in from the western Atlantic.
An extended warm and dry period is in store for northwest California this week, as an upper level ridge will gradually build along the west coast. (Interior Northwest California) Currently, a cutoff low centered across eastern Washington state continues to very slowly move off to the east, and a southwestward extension of this trough is draped across Oregon and northern California.
/ISSUED 323 PM CDT THU MAY 5 2016/ A RIDGE OF HIGH PRESSURE EXTENDS FROM SOUTHERN IOWA INTO CENTRAL TEXAS.
FOUR STATE REGION WILL CONTINUE TO BE UNDER THE INFLUENCE OF HIGH PRESSURE ON THE SURFACE AND ALOFT.
FLASH FLOOD WATCH WILL CONTINUE IN BAKER COUNTY OREGON FOR THE CORNET WINDY RIDGE BURN SCAR AS CONVECTION IS STILL ONGOING AND NEARBY THE SCAR. AN UPPER LEVEL LOW CENTERED JUST OFF THE CENTRAL CALIFORNIA COAST WILL BE THE MAIN WEATHER FEATURE THROUGH THE SHORT TERM. SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE ACROSS THE FORECAST AREA LATE THIS AFTERNOON AND EARLY EVENING AIDED BY DIFFLUENT FLOW ALOFT NORTHEAST OF THE LOW CENTER. A DOWNWARD TREND IN PRECIPITATION COVERAGE WILL OCCUR OVERNIGHT WHILE THE LOW MOVES INLAND. FLOW ALOFT WILL BACK TO EASTERLY AS THE LOW CENTER MOVES FURTHER INLAND ACROSS THE SOUTHERN GREAT BASIN.
1159 PM CDT THU MAY 5 2016 FOR 06Z TAFS /ISSUED 851 PM CDT THU MAY 5 2016/ CENTER OF UPPER LOW IS NOW OVER THE CAROLINAS WITH SOME WRAP ARND CLOUDS THAT WILL PUSH ACROSS MUCH OF THE TN VALLEY THIS EVENING. ASSOCIATED WITH THE UPPER LOW OVER THE MID ATLANTIC.
AND SOME SNOW SHOWERS ON THE HIGHEST PEAKS. CHATTANOOGA AIRPORT, TN 46 72 50 80 / 10 0 10 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 45 69 48 78 / 20 10 10 10 OAK RIDGE, TN 45 70 48 78 / 20 0 10 10 TRI CITIES AIRPORT, TN 42 64 45 74 / 80 50 10 20.
VFR CONDITIONS EXPECTED THROUGH MUCH OF THE PERIOD WITH HIGH PRESSURE AT THE SURFACE AND ALOFT. OMEGA BLOCKING PATTERN WITH THE CENTER OF THE RIDGE AXIS TO OUR WEST CURRENTLY WILL SHIFT SLOWLY EASTWARD WITH THE RIDGE AXIS ACROSS THE CENTRAL CONUS FRIDAY NIGHT. LEE TROUGHING ACROSS THE ROCKIES AND SIERRA MADRES WILL HELP PROVIDE A SLIGHTLY STRONGER WIND SPEED ON FRIDAY WITH HIGHS IN THE 90S.
MID LEVEL IMPULSE ROTATING AROUND MID/UPPER LOW ACROSS THE CAROLINAS WILL PRODUCE A BRIEF PERIOD OF CLOUDINESS ACROSS SE GA AND INTO EXTREME NE FL THE NEXT SEVERAL HOURS BUT NO PCP EXPECTED. OTHERWISE FCST ON TRACK WITH CLEARING SKIES AND MUCH COOLER TEMPS LATER TONIGHT WITH NEAR RECORD LOWS IN A FEW SPOTS.
ISOLATED THUNDERSTORMS COULD DEVELOP AND MOVE ONSHORE THE NICE UPPER LOW SPINNING VIGOROUSLY OFF THE COAST IS POISED TO MOVE INLAND OVER THE NEXT 24 HR. THE LOW LEVEL CAP HAS ERODED COMPLETELY. /GREGORIA A LOW PRESSURE SYSTEM WILL BRING SHOWERS AT TIMES THROUGH THE WEEKEND.
613 PM MDT THU MAY 5 2016 THE NEXT PACIFIC LOW PRESSURE SYSTEM WILL CONTINUE TO SLOWLY MOVE OVER SOUTHERN CA TONIGHT AND ON FRIDAY. OUR RESIDENT HIGH PRESSURE RIDGE WILL CONTINUE TO SHIFT EAST AND WILL MOVE OVER THE HIGH PLAINS BY FRI AFTERNOON. THE RESULTING SOUTH FLOW ON THE WEST SIDE OF THE RIDGE AXIS HAS BROUGHT A LITTLE BETTER MID-HIGH LEVEL CLOUDS TODAY. MODELS INDICATE ANOTHER SEPARATE DISTURBANCE WILL BRUSH THE NORTH DURING THE TUE-WED TIME FRAME AS A TROUGH PASSES ACROSS THE NORTHERN ROCKIES AND INTO THE NORTHERN PLAINS.
UPPER LOW POSITIONED OVER THE CAROLINAS THIS EVENING. ALSO NOTED ON THE BACKSIDE OF THE TROUGH AXIS AND IS KEEPING A MOSTLY CLOUDY SKY ACROSS THE NORTHEASTERN TWO THIRDS OF THE MID STATE. AND WITH BUILDING HIGH PRESSURE INFLUENCES SFC/ALOFT BUILDING INTO MID STATE REGION. AND WITH ABOVE MENTIONED BUILDING RIDGING INFLUENCES.
/issued 340 PM CDT THU MAY 5 2016/ (Friday Night through next Thursday) Southwest flow aloft will develop over our area by the weekend, as the upper ridge shifts east into the lower Mississippi Valley, and an upper low moves from the Desert Southwest toward Colorado.
HIGH PRESSURE RIDGE OVER THE CWA PROVIDING FULL SUNSHINE. MUCH WARMER TEMPERATURES IN THE SHORT TERM. HIGH PRESSURE RIDGE WILL BE PUSHING SOUTH OF THE AREA ALLOWING FOR WARMER TEMPERATURES AS WINDS BECOMING LIGHT SOUTHWEST. LOWS WILL BE ABOUT 10 DEGREES WARMER THAN LAST NIGHT. WARM DAY WITH THE RETURN FLOW AROUND THE HIGH PRESSURE SYSTEM DROPPING INTO THE LOWER MS VALLEY.
554 PM MDT THU MAY 5 2016 THE UPPER RIDGE CURRENTLY CENTERED JUST WEST OF THE FORECAST AREA OVER COLORADO WILL CONTINUE TO DRIFT EAST TONIGHT AND FRIDAY. SUBSIDENCE ASSOCIATED WITH THE RIDGE ALONG WITH A GENERAL LACK OF LOW LEVEL MOISTURE WILL KEEP CLOUDS AT A MINIMUM THROUGH THE PERIOD. SURFACE PRESSURE OVER COLORADO WILL BEGIN TO FALL DURING THE DAY FRIDAY AS THE UPPER RIDGE MOVES EAST AND THE AREA FEELS THE EFFECTS OF THE NEXT MAJOR WEATHER SYSTEM. THIS IS GOING TO BE BROUGHT ABOUT BY A COMBINATION OF AN UPPER LOW SETTING UP OVER THE CENTRAL ROCKIES.
UPPER LOW POSITIONED OVER THE CAROLINAS THIS EVENING. ALSO NOTED ON THE BACKSIDE OF THE TROUGH AXIS AND IS KEEPING A MOSTLY CLOUDY SKY ACROSS THE NORTHEASTERN TWO THIRDS OF THE MID STATE. BUILDING RIDGING INFLUENCES SFC/ALOFT TO PROVIDE VFR/SKC CONDITIONS AT ALL TERMINALS 06/14Z-06/24Z WITH NW/N SFC WINDS 5-10KTS.
IN THE LOW TO MID 20S WINDS HAVE DROPPED OFF SO ALLOWED RED FLAG WARNING TO EXPIRE. OTHERWISE WEAK RETURNS ASSOCIATED WITH SHORT WAVE RIDING CREST OF RIDGE OVER WESTERN ND AND ADJACENT S CANADA REMAIN NORTH OF INL BORDER AREA. UPPER RIDGE CONTINUES TO BUILD OVER THE PLAINS AND WITH A VERY WARM AIR MASS OVERHEAD. UPPER TROUGH CURRENTLY OVER NORTHERN ALBERTA WILL HELP KNOCK DOWN THE RIDGE AND DIG DOWN INTO MANITOBA AND ONTARIO TOMORROW. THIS WILL MOSTLY HELP PUSH A COLD FRONT DOWN INTO THE CWA. HIGHS SHOULD BE ABOUT 20 DEGREES COOLER THAN TODAY IN THE NORTHWEST WHERE THE FRONT GOES THROUGH FIRST BUT THE SOUTHERN COUNTIES SHOULD AGAIN SEE 80S ON FRIDAY. HIGH PRESSURE WILL DIG IN BEHIND THE FRONT ON FRIDAY NIGHT AND DROP LOWS DOWN INTO THE LOW TO MID 40S.
1152 PM EDT THU MAY 5 2016 HIGH PRESSURE EXPANDING ACROSS THE REGION FROM THE NORTHWEST TONIGHT AND DRY LOW LEVEL AIR WILL SUSTAIN MAINLY CLEAR SKIES AND LIGHT WINDS THROUGH THE TAF PERIOD. ISSUED 357 PM EDT THU MAY 5 2016 NORTHERLY LOW LEVEL FLOW HAS MAINTAINED A SUPPLY OF COOL AIR OVER LOWER MICHIGAN TODAY AHEAD OF HIGH PRESSURE ADVANCING FROM THE MIDWEST AND NORTHERN GREAT LAKES. THIS IS SHOWN EVEN IN THE MOST AGGRESSIVE HRRR DEPICTIONS AS THE ADVANCING UPPER RIDGE SUPPORTS SUBSIDENCE AND MID LEVEL WARMING. A WEDGE OF SUBSIDENCE WILL PERSIST OVER SE MICHIGAN THROUGH FRIDAY WITH SOME MID CLOUD NEARBY TO THE WEST OFF THE FLANK OF THE RIDGE.
753 PM EDT THU MAY 5 2016 A LARGE UPPER LEVEL LOW BRINGS COOL AND UNSETTLED WEATHER INTO FRIDAY.
EXPECT COOLER TEMPERATURES AND ISOLATED SHOWERS AND THUNDERSTORMS THIS WEEKEND. COOLER TEMPERATURES AND INCREASED MOISTURE WILL THEN MOVE INTO THE AREA LATE FRIDAY THROUGH THE WEEKEND. AN UPPER LOW WILL MOVE SLOWLY ACROSS THE DESERT SOUTHWEST THROUGH THE WEEKEND AND THIS WILL RESULT IN SLIGHT CHANCES OF RAIN. DRY WEATHER AND LESSER WINDS WILL RETURN TO THE REGION AS WELL AS A WARMING TREND BY LATE IN THE WEEK AS A RIDGE BUILDS IN FROM THE SOUTH AND WEST.
UPPER LOW POSITIONED OVER THE CAROLINAS THIS EVENING. ALSO NOTED ON THE BACKSIDE OF THE TROUGH AXIS AND IS KEEPING A MOSTLY CLOUDY SKY ACROSS THE NORTHEASTERN TWO THIRDS OF THE MID STATE.
OVERLAID WITH MODEL STREAMLINE ANALYSIS DEPICT A VERY ROBUST FULL LATITUDINAL LATE SEASON COLD CORE TROUGH ACROSS THE EASTERN SEABOARD. WITH AN ASSOCIATED MIDDLE LEVEL COLD CORE LOW PRESSURE SYSTEM OVER THE NORTH CAROLINA MOUNTAINS. AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. LATEST IR IMAGERY OVERLAID WITH LATEST AVAILABLE LAND AND MARINE SURFACE OBSERVATIONS AND ANALYSIS AS OF 900 PM DETAIL AN ATTENDANT COLD FRONT SWINGING UNUSUALLY FAR SOUTHWARDS FOR THIS TIME OF YEAR AND BISECTING THE EASTERN HALF OF CUBA FROM 996 MB LOW PRESSURE EAST OF THE DELMARVA PENINSULA. WITHIN THE UNUSUALLY DEEP NORTH TO SOUTH ORIENTED TROUGH. LATEST AVAILABLE MODEL FORECAST SOUNDINGS DO ILLUSTRATE THAT AS THIS NEXT TROUGH/WEEK COOL FRONT APPROACHES BY 12Z IN THE MORNING. THE NEXT WEAK TROUGH IS PROGGED TO MOVE ACROSS THE WATERS TOWARDS SUNRISE. BEHIND THE TROUGH.
1015 PM EDT THU MAY 5 2016 A LARGE UPPER LEVEL LOW BRINGS COOL AND UNSETTLED WEATHER INTO FRIDAY.
/ISSUED 300 PM CDT THU MAY 5 2016/ AN EXTRAORDINARILY HIGH AMPLITUDE RIDGE HAS PUSHED THE MERCURY ABOVE 90 DEGREES IN THE PRAIRIE PROVINCES AGAIN THIS AFTERNOON. BEHIND A COLD FRONT.
855 PM EDT THU MAY 5 2016 A SERIES OF WEAK TROUGHS WILL CONTINUE TO MOVE ACROSS THE REGION TONIGHT AND FRIDAY HELPING TO REINFORCE THE RELATIVELY COOL DRY AIR ACROSS THE REGION.
737 PM EDT THU MAY 5 2016 AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES FROM KENTUCKY THIS MORNING TO ALONG THE NC/VA COAST BY FRIDAY MORNING.
820 PM CDT THU MAY 5 2016 UPPER LEVEL RIDGE OVER THE HIGH PLAINS WILL CONTINUE TO MOVE EAST SLOWLY THROUGH THE WEEKEND. /ISSUED 323 PM CDT THU MAY 5 2016/ A RIDGE OF HIGH PRESSURE EXTENDS FROM SOUTHERN IOWA INTO CENTRAL TEXAS.
739 PM EDT THU MAY 5 2016 HIGH PRESSURE WILL GRADUALLY BUILD INTO THE AREA THROUGH FRIDAY NIGHT. THE HIGH WILL MOVE OFF.
935 PM EDT THU MAY 5 2016 AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES FROM KENTUCKY THIS MORNING TO ALONG THE NC/VA COAST BY FRIDAY MORNING.