Aikyam-Lab/Synoptic-Bench huggingface dataset:
853 PM MST SUN FEB 21 2016 LEADING EDGE OF MOISTURE FROM UPPER-LEVEL TROF IN WESTERN MT/ID PANHANDLE HAS MOVED EAST OF THE CONTINENTAL DIVIDE A FEW HOURS EARLIER THAN FORECAST, BUT IT'S ALL MID-LEVEL CLOUDS WITH NO PRECIPITATION INDICATED ON RADAR AT THIS TIME. QUICK-MOVING UPPER LEVEL TROUGH LOCATED ALONG WA/OR/ID BORDER AT 23Z IS ALREADY PUSHING EXTENSIVE BKN-OVC CLOUDS (CIGS GENERALLY ABOVE 12000 FT) INTO WESTERN MT. SNOW ACCUMULATIONS WILL REMAIN LIGHT AND MAINLY IN THE HIGHER ELEVATIONS.
ELSEWHERE WATER VAPOR IMAGERY SHOW DRIER AIR OVER THE REGION WITH SURFACE PRESSURE PATTERN SHOWING A LEESIDE TROUGH OVER ALBERTA EXTENDING DOWN INTO NORTH CENTRAL MONTANA. WESTERN AREAS ARE SEEING A DOWNSLOPE INFLUENCE DUE TO THIS TROF AND DEWPOINTS ARE MUCH LOWER IN THE TEENS. MONDAY THE WEATHER PATTERN BECOMES A BIT MORE COMPLEX AS THE WEAK ENERGY SHIFTS ACROSS EASTERN MONTANA AND A MUCH STRONGER RIDGE DEVELOPS ALONG THE WEST COAST.
303 PM CST SUN FEB 21 2016 Clouds continue to decrease in the wake of fropa as high pressure builds in. Otherwise dry through Monday night, with temperatures a bit cooler.
100 PM PST SUN FEB 21 2016 A BUILDING RIDGE OF HIGH PRESSURE ALOFT WILL CONTINUE THE INLAND WARMING TREND TODAY.
WATER VAPOR IMAGERY ILLUSTRATES A DEARTH OF DRY AIR JUST TO THE SOUTH OF THE KEYS AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. BUT ONLY 10 TO 15 KNOT ACROSS THE SHALLOWER AND RELATIVELY COOLER WATERS OF FLORIDA BAY AND SMITH SHOAL LIGHT. NEAR 1020 MB RIDGING WILL HOLD IN PLACE ACROSS CENTRAL FLORIDA. FORECAST SOUNDINGS INDICATE ONLY SLIGHT MOISTENING IN THE LOWER TO MID TROPOSPHERE. THE HIGH TEMPERATURE IN KEY WEST HIT 85 DEGREES.
352 PM EST SUN FEB 21 2016 A WEAK AREA OF LOW PRESSURE MOVING TO THE EAST THROUGH VIRGINIA WILL BRUSH THE SOUTH WITH LIGHT RAIN EARLY THIS EVENING. THE HIGH PRESSURE WILL SHOVE IT OFF TO THE EAST AND END PRECIP BY MIDNIGHT. EXITING HIGH PRESSURE AREA OVER NEW ENGLAND TUE WILL KEEP SOME COLD AIR DAMMING IN PLACE AGAINST THE EASTERN SIDE OF THE APPALACHIANS AS SOUTHERLY LOW LEVEL FLOW BEGINS TO INCREASE. WITH COOLER AIR ENTRENCHED.
SHARPENING MID LEVEL RIDGE OFF THE WEST COAST WILL LEAD TO TIGHTENING MID LEVEL HEIGHTS OVER THE ROCKIES AND A STRENGTHENING UPPER LEVEL JET.
155 PM PST SUN FEB 21 2016 HIGH PRESSURE WILL STRENGTHEN OVER THE SIERRA AND WESTERN NEVADA, BRINGING DRY CONDITIONS THROUGH THE WORK WEEK.
WITH GENERALLY ISOLATED SHOWERS IN THE HIGHER TERRAIN AND NO MENTION OF SHOWERS IN THE LOWER VALLEYS THROUGH MONDAY MORNING. A WEAK COLD FRONT WILL PASS THROUGH OVERNIGHT FOLLOWED BY BREEZY POST-FRONTAL WINDS ON MONDAY. TEMPERATURES WILL BE A LITTLE COOLER.
LOW TEMPERATURES WILL BE IN THE LOWER AND MID 50S TONIGHT WITH LIGHT SW WINDS.
1053 PM EST SUN FEB 21 2016 A WEAK AREA OF LOW PRESSURE MOVING TO THE EAST THROUGH VIRGINIA WILL BRUSH THE SOUTH WITH LIGHT RAIN EARLY THIS EVENING. FINAL SHOWER REMNANTS TRACKING OUT OF THE LOWER SUSQ RIVER VALLEY. CLEARING IS EXPECTED IN THE PRE DAWN HOURS AS THE HIGH GETS CLOSER. EXITING HIGH PRESSURE AREA OVER NEW ENGLAND TUE WILL KEEP SOME COLD AIR DAMMING IN PLACE AGAINST THE EASTERN SIDE OF THE APPALACHIANS AS SOUTHERLY LOW LEVEL FLOW BEGINS TO INCREASE. WITH COOLER AIR ENTRENCHED.
Temperatures are a little warmer compared to 24 hours ago and range from the 40s and 50s in the mountains to the 60s in the valley. Drier and warmer weather on tap this week as upper ridging reestablishes itself over California.
WEAK COLD FRONT CONTINUES PUSHING SOUTH WITH LINE OF SCT -SHRA/ISO -TSRA APPROACHING BNA THEN CSV LATER THIS AFTERNOON.
Area radars show -SHRA tapering off to the SE, as the cold front continues moving thru the region. /issued 145 PM CST SUN FEB 21 2016/ A stationary front draped across the S PB/Lower Trans Pecos has been the general favored area for precip today as a well defined shrtwv trof moves overhead. Later in the day mid level lift will increase ahead the ballyhooed shrtwv trof in NW flow. LR's are steep with this shrtwv trof for an increasingly favorable environment for thunder. This will be followed by a fast moving cold front that will be shoved along by a 7-8mb/3hr isallobaric high and about a 4mb/90nm MSLP gradient, not to mention subsidence mixing. Parts of the Lower Trans Pecos will be tested with wind gust around 45 mph, which is not very common that far s.
255 PM CST SUN FEB 21 2016 HIGH PRESSURE NEAR WINNIPEG THIS AFTN WITH CLEARING AS FAR SOUTH AS DEVILS LAKE-GRAND FORKS-BEMIDJI AT 20Z.
SOUTH TO SOUTHEAST WINDS WILL OCCUR AHEAD OF THIS TROUGH WITH WEST WINDS ACROSS THE PANHANDLE WEST OF THE TROUGH. AS UNFAVORABLE SOUTHEAST WINDS TO THE EAST OF THE TROUGH AND INCREASING CLOUDS WILL LIKELY LIMIT WARMING SOME.
1007 PM EST SUN FEB 21 2016 HIGH PRESSURE ALONG WITH A DRIER AND COOLER AIRMASS WILL BUILD ACROSS THE GREAT LAKES TONIGHT.
330 PM CST SUN FEB 21 2016 A POTENT LOW PRESSURE SYSTEM MID WEEK COULD BRING BOTH A CHANCE OF SEVERE WEATHER AND WINTER WEATHER TO THE MIDSOUTH. A COLD FRONT STRETCHES FROM NEAR CAMDEN TENNESSEE TO WYNNE ARKANSAS. COOLER AIR WILL FILTER INTO THE AREA BEHIND THE FRONT. EXPECT LOWS IN THE LOWER 40S TO AROUND 50 DEGREES. A SERIES OF WEAK LOW PRESSURE CENTERS WILL DEVELOP ALONG THE FRONT.
1021 PM EST SUN FEB 21 2016 AN APPROACHING COLD FRONT TONIGHT WILL SLOWLY PUSH THROUGH THE FORECAST AREA MONDAY.
A COLD FRONT WILL DROP OUT OF KY. BRINGING COOLER AIR AND AN END TO SHOWERS.
356 PM CST SUN FEB 21 2016 A cold front has moved through the northern half of the CWA this afternoon. Cooler overnight lows in the mid 40s to near 50 degrees can be expected tonight. Will go ahead and keep a slight chance for showers and thunderstorms area-wide tomorrow as moist southerly flow quickly returns to the area as another cold front approaches from the north.
SO THE FOCUS OF THIS UPDATE WAS ON REFINING SKY COVER THROUGH THE EVENING WITH AN EXPECTATION THAT MOST OF THE LOW CLOUDS MAY NOT REDEVELOP DESPITE SUNSET. COOLER NORTH AND EAST UNDER CLOUDS. A TYPICAL TEMPERATURE GRADIENT WILL SET UP ACROSS THE STATE AGAIN THIS WEEK WITH MUCH ABOVE NORMAL TEMPERATURES ACROSS THE SOUTHWEST AND COOLER TEMPERATURES ACROSS THE NORTHEAST. THE LOW CLOUDS WHICH DISSIPATED OVER MUCH OF SOUTHWEST AND SOUTH CENTRAL ND DURING THE LATE AFTERNOON /INCLUDING AT KDIK AND KBIS/ ARE UNLIKELY TO RETURN BASED ON SATELLITE IMAGERY.
256 PM EST SUN FEB 21 2016 HIGH PRESSURE OVER CENTRAL FLORIDA HAS MAINTAINED STEADY EAST WINDS NEAR 10 KNOTS OVER THE ISLANDS. EVENTUALLY THE LOWER WARMING IN THE LOWER TROPOSPHERE WILL OUTPACE ANY MOISTENING WITH RAINFALL MORE ISOLATED AND CONVECTIVE THAN PATCHY STRATIFORM.
1049 PM EST SUN FEB 21 2016 COOLER WEATHER WILL BUILD ACROSS THE AREA TONIGHT. THE RESULT WILL BE HIGH TEMPERATURES ABOUT 10 DEGREES COOLER ON MONDAY.
245 PM PST SUN FEB 21 2016 DRY WEATHER WILL CONTINUE FOR THE NEXT SEVERAL DAYS AS A RIDGE OF HIGH PRESSURE DOMINATES THE PATTERN.
817 PM EST SUN FEB 21 2016 COOLER WEATHER WILL BUILD ACROSS THE AREA TONIGHT. THE RESULT WILL BE HIGH TEMPERATURES ABOUT 10 DEGREES COOLER ON MONDAY.
855 PM MST SUN FEB 21 2016 ANOTHER UNSEASONABLY STRONG HIGH PRESSURE SYSTEM IS FORECAST TO BUILD OVER THE REGION THROUGH MONDAY.
AS HIGH PRESSURE CONTINUES TO BUILD INTO THE REGION ON MONDAY. WHILE TEMPERATURES WILL BE COOLER THAN TODAY. FLOW WILL ALREADY BE INCREASING FROM THE SOUTHEAST ON MONDAY NIGHT AS LOW PRESSURE DEEPENS OVER THE LOWER MISSISSIPPI VALLEY.
A COLD FRONT WAS POISED JUST TO THE NORTH OF THE AREA AND MOVING SOUTHWARD. ENHANCED LIFT ALONG THE LOW-LVL FRONT WILL CONTINUE TO GENERATE ISOLD/SCTD RA/SHRA AS IT PROGRESSES SOUTHWARD ACROSS THE AREA DURING THE OVERNIGHT PERIOD. WITH A COLD FRONTAL PASSAGE TOMORROW.
The cold front moving through the forecast area this evening is very weak. 00Z TAFS: A fast moving cold front continues to eject NE across the Inland NW this afternoon.
WARMER TEMPERATURES ABOVE THIS RATHER SHALLOW MOIST LAYER SHOULD KEEP CONVECTION CHANCES VERY LOW.
259 PM EST SUN FEB 21 2016 A WEAK AREA OF LOW PRESSURE MOVING TO THE EAST THROUGH VIRGINIA WILL BRUSH THE SOUTH WITH LIGHT RAIN EARLY THIS EVENING. THE HIGH PRESSURE WILL SHOVE IT OFF TO THE EAST AND END PRECIP BY MIDNIGHT. THE LATEST STORM OF THE CENTURY SEEMS TO BE GETTING WARMER AND WARMER WITH TIME. THIS COULD BE TOO WARM IF THOSE CLOUDS DO THICKEN UP AS THE HIGH MOVES TO THE EAST.
507 PM CST SUN FEB 21 2016 COLD FRONT WILL CONTINUE TO ADVANCE SOUTHWARD TONIGHT. TONIGHT THROUGH MONDAY NIGHT A RELATIVELY QUIET DAY HAS BEEN SEEN ACROSS THE NATURAL STATE WITH OVERCAST CONDITIONS AS A SLOW MOVING COLD FRONT CONTINUES ITS SLOW MARCH ACROSS THE STATE. AHEAD OF THE FRONT HAVE SEEN TEMPERATURES WARM INTO THE LOWER TO MID 70S WITH DEWPOINTS IN THE 60S.
145 PM CST SUN FEB 21 2016 A stationary front draped across the S PB/Lower Trans Pecos has been the general favored area for precip today as a well defined shrtwv trof moves overhead. Later in the day mid level lift will increase ahead the ballyhooed shrtwv trof in NW flow. LR's are steep with this shrtwv trof for an increasingly favorable environment for thunder. This will be followed by a fast moving cold front that will be shoved along by a 7-8mb/3hr isallobaric high and about a 4mb/90nm MSLP gradient, not to mention subsidence mixing. Parts of the Lower Trans Pecos will be tested with wind gust around 45 mph, which is not very common that far s.
155 PM EDT TUE APR 5 2016 HIGH PRESSURE WILL MOVE IN FROM THE WEST TODAY AND ALLOW FOR QUIET WEATHER CONDITIONS THROUGH WEDNESDAY MORNING.
405 PM CDT TUE APR 5 2016 UPPER LOW/TROUGH MOVING INTO THE WESTERN DAKOTAS THIS AFTERNOON WILL SWING THROUGH THE REGION TONIGHT.
MAIN COOLING THROUGH THE COLUMN WILL BE LATE SO MINIMUMS SHOULD RANGE A FEW DEGREES EITHER SIDE OF FREEZING.
Otherwise, high clouds were over the Big Country and temperatures were in the lower to mid 80s. Temperatures will be slightly cooler, with highs in the mid to upper 70s.
UPPER LEVEL HIGH PRES OVER THE NE PAC IS BEGINNING TO BUILD OVER THE PAC NW TODAY. THE UPPER LEVEL RIDGE AXIS WILL SHIFT DIRECTLY OVER THE PAC NW FOR WED AND THU. FCST 850MB TEMP ANOMALIES SUGGEST THE AIR MASS WILL BE 3 TO 4 STANDARD DEVIATIONS WARMER THAN NORMAL. THU WILL BE THE WARMER DAY INLAND. THE UPPER LEVEL RIDGE AXIS WILL SHIFT EAST OF THE CASCADES ON FRI. THIS WILL OPEN THE DOOR FOR A SPLITTING UPPER LEVEL TROUGH TO APPROACH THE PAC NW. THE NORTHERN PIECE OF TROUGH ENERGY IS FCST TO PASS WELL TO OUR NORTH ONTO THE B.
AHEAD OF THIS LOW A PRONOUNCED DRY SLOT MOVED INTO CENTRAL NORTH DAKOTA.
Ahead of the upper trough a cold front will advance into western Kansas from late afternoon into the evening. For tonight, the cold front continues to advance south with a slight chance for thunderstorms, possibly with small hail, and mainly east of Dodge City. Current thoughts the high winds will not last long enough for a High Wind Warning, but day shift may need to evaluate again with new models.
A COLD FRONT EXTENDS FROM THE LOW TO THE SOUTHWEST. THE COLD FRONT IS EXPECTED TO MOVE THROUGH THE FORECAST AREA BY THIS EVENING.
A COLD FRONT WAS MOVING THROUGH THE STATE EARLY THIS MORNING AND WILL BE OUT OF CENTRAL ALABAMA JUST AFTER SUNRISE. NOT HARDLY A CLOUD ASSOCIATED WITH THIS FRONT BUT SLIGHTLY COOLER CONDITIONS BY THIS AFTERNOON. OUR BEST RAIN CHANCES COME WEDNESDAY AND WEDNESDAY NIGHT AS A WARM FRONT/DEW POINT AXIS ENTERS EARLY WEDNESDAY AFTERNOON QUICKLY FOLLOWED BY A COLD FRONT WEDNESDAY EVENING.
324 PM CDT TUE APR 5 2016 An upper level trough was moving across the northern Rockies and out into the the Dakotas this afternoon at 19Z. The frontal boundary will move southeast tonight as the upper trough move southeast across the Central and Northern Plains. The upper trough axis looks to exit eastern Kansas around sunrise Wednesday. Dew points have struggled to rise this afternoon and with deep mixing occurring, readings in the lower to mid 40s were observed as of 20Z.
Winds will become southerly this afternoon/evening ahead of the advertised next cold front. By Wednesday night an unsettled cooler NW flow aloft/500 mb pattern will be established.
CLOUDS WILL RETURN FROM WEST TO EAST TOMORROW AHEAD OF COLD FRONT BUT CIGS WILL BE VFR.
143 PM EDT TUE APR 5 2016 HIGH PRESSURE WILL MOVE THROUGH THE AREA TODAY. AS THE HIGH MOVES EAST OF THE REGION ON TUESDAY NIGHT. LOW PRESSURE WILL DEVELOP IN THE GREAT LAKES ON WEDNESDAY. SO HIGHS MIGHT BE A DEGREE OR TWO COOLER THAN EXPECTED. IT IS LOOKING QUITE LIKELY THAT FREEZING TEMPERATURES WILL OCCUR TONIGHT IN THE EASTERN COUNTIES OF THE FORECAST AREA. A SHARP MID-LEVEL TROUGH WILL BE MOVING SOUTHEAST OUT OF THE UPPER MISSISSIPPI VALLEY REGION. WITH RIDGING BUILDING INTO THE REGION ALOFT. THE LOW-LEVEL PRESSURE GRADIENT WILL INCREASE SIGNIFICANTLY. AS THE MID-LEVEL TROUGH APPROACHES. NOW IN THE RANGE OF THE HIGH-RES MODELS.
AS OF 18Z, AN UPPER LEVEL LOW IS SHIFTING EASTWARD OUT OF THE NORTHERN ROCKIES AND INTO THE NORTHERN PLAINS. AN UPPER LEVEL RIDGE IS IN PLACE ACROSS MEXICO AND THE SOUTHERN UNITED STATES. TEMPERATURES AT 18Z WERE GENERALLY IN THE LOWER 70S. HIGHS THIS AFTERNOON LOOK TO TOP OUT IN THE LOWER 70S ACROSS NORTHEASTERN COLORADO AND FAR NORTHWESTERN KANSAS TO UPPER 70S ACROSS PORTIONS OF WEST CENTRAL AND NORTH CENTRAL KANSAS. HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE AREA OVERNIGHT LEADING TO NORTHERLY WINDS THIS EVENING SHIFTING TO MORE OF A NORTHWESTERLY DIRECTION AFTER MIDNIGHT. HIGH PRESSURE WILL BE LOCATED WEST OF THE AREA TOMORROW WITH CONTINUED NORTHWEST WINDS WITH MOSTLY CLEAR SKIES ACROSS THE CWA. AS FOR TEMPERATURES, LOWS TONIGHT LOOK TO RANGE FROM THE LOWER 30S ACROSS EASTERN COLORADO TO LOWER 40S ACROSS NORTH CENTRAL KANSAS.
ATTENTION WILL THEN TURN TO A COLD FRONT BEING DRIVEN SOUTH BY AN UPPER TROUGH SWINGING ACROSS THE NORTHERN AND CENTRAL HIGH PLAINS.
Despite what could be some fairly persistent high cloud, strong warm air advection ahead of the low should bring highs into the mid 70s to lower 80s. The deep mixing and tight pressure gradient will likely winds in to Advisory levels, perhaps both sustained and gusts, southeast of the low in mainly southwestern areas. Models continue to bring wide range of instability suggestions, but given the aforementioned lack of moisture observations upstream, believe the drier solutions will verify closer to reality, CAPE ahead of the cold front to below 1000 J/kg.
DOWN INTO TEXAS AND LOUISIANA TEMPS ARE IN THE 50S ATTM AS HIGH PRESSURE IN THE GULF REMAINS IN CONTROL. A FEW LOCATIONS WILL BE A BIT WARMER AS LIGHT SOUTHERLY WINDS FUNNEL GULF MOISTURE NORTHWARD.
351 AM EDT Thu May 7 2020 Cooler and drier air has overtaken the region with much below normal temperatures expected through the weekend.
(Today and tonight) The upper ridge over the UT and CO mountains will continue to flatten today as an intense upper low moves from southern MT to northeastern KS by tonight. All this ahead of a cold front which will follow quickly behind the upper wave and enter northwestern Oklahoma early this evening and passing through central Oklahoma around midnight. With strong heating, increasing instability and the convergence near the low/dryline, severe storms with very large hail and damaging winds may occur.
Surface-850mb moisture return will be modest at best due to high pressure along the Gulf Coast, which will limit instability across the forecast area.
Upper level analysis places low over Hudson Bay, with modest ridge over the central Rockies into the Canadian Plains. Trough noted behind the ridge over the Pacific Northwest. For tonight, aforementioned Pacific trough closes off and quickly pushes over the Rockies overnight, breaking down the ridge. Most locations are expected to dip below freezing.
Otherwise, expect a slow warming trend to push afternoon highs Thursday back into a range that's several degrees warmer than those usual for early May. Then, later Thursday evening, as another cold front approaches from the north, showers and thunderstorms may develop or continue, across mainly our northern and eastern Big Country counties.
Showers and thunderstorms will increase in the unstable environment ahead of the trough through the rest of this afternoon into early this evening then likely transition to an area of fairly widespread rainfall with some embedded bands of moderate precipitation beneath the trowal, extending NW of the circulation as it moves off into SE MT later tonight. Still some uncertainty with precipitation amounts over western portions of north-central MT related to the exact position of the trowal and any mesoscale precipitation bands as well as the influence of westerly flow which may inject some drying in the lower levels east of the Rocky Mtn Front.
255 AM EDT Thu May 7 2020 High pressure will be overhead today, then shift offshore tonight.
/issued 232 PM CDT Wed May 6 2020/ Upper ridging will dominate overnight. The period will be characterized by ridging out west and troughing in the east with NWRLY flow across the central CONUS.
A dry cold front will move through central and southern Utah tonight.
330 AM EDT Thu May 7 2020 Low pressure passing offshore will provide clouds and scattered showers to the area this morning. A cold front will sweep across the area tonight with more clouds and a better chance of rain showers and mountain snow showers.
As the mid-level cyclone approaches overnight, expect convection to increase along the southward advancing cold front, with storms entering northeast OK this evening.
1147 PM CDT Wed May 6 2020 VFR conditions expected for the next 24 hours with high pressure over the southern plains. The high will move to the east and the pressure gradient will tighten up on Thursday and SE-S winds will become gusty by late morning and persist into Thursday night.
First batch of rain will develop along and north of a weak warm front across southern Missouri on nose of a decent low level jet.
There is a growing trend in the models to set the warm front and heaviest rainfall north and east of ncntl Nebraska. A developing warm front across ncntl Nebraska this morning will be the focus for rain this afternoon and cooling temperatures aloft will support showers and thunderstorms this evening. Pacific high pressure and very dry air moves in tonight behind the storm and precipitable water falls below 0.
The upper level trough and associated cold front will be approaching the Four State Region late in the period, thus have lowering ceilings as it approaches but will hold off introducing convection at the moment.
Northerly winds are breezy in eastern sections, but with high pressure building in, they are light in the west and will weaken across the area into the evening. maybe some thunder and cooler temperatures.
The main change with the evening update will be to add the Smoky Mountains and SW NC into the Frost Advisory, which lines up well with GSP and better reflects the forecast lows in the lower to mid 30s in those areas. Otherwise the forecast will remain the same, as skies continue their clearing trend and high pressure builds over the region. LW Chattanooga Airport, TN 69 50 62 38 62 / 0 20 90 10 0 Knoxville McGhee Tyson Airport, TN 67 48 61 35 58 / 0 20 90 20 0 Oak Ridge, TN 68 47 59 34 59 / 0 20 90 10 0 Tri Cities Airport, TN 63 43 59 32 52 / 0 10 90 60 0 NC.
/issued 625 PM CDT Wed May 6 2020/ VFR to continue with dry high pressure in place. /issued 410 PM CDT Wed May 6 2020/ Clear skies as temperatures climbed into the low 80s today.
The pressure gradient will continue to tighten across the area today and into tomorrow as the trough deepens into a compact closed low and tracks over eastern Wyoming. Tonight the potential for surface mixing might inhibit cooling slightly so expect lows to be a touch warmer than this morning. The pressure gradient will maximize tomorrow afternoon, which coincides with peak heating so expect wind gusts in the 25 to 35 mph range in the valleys and 35 to 55 mph in the high country.
Clearing skies later tonight, along with cold air advection should produce low temperatures in the upper 20s, to the lower 30s.
Highs today will be a bit warmer than yesterday, topping out in the low 60s on the Plateau to the upper 60s west. Next trough will be moving southeastward from the Central Plains towards the mid state today, bringing rain chances in after midnight tonight.
Strong, gusty south-southeast winds are expected Thursday afternoon and evening as low pressure deepens over west Texas. Clouds have been on the decrease this evening but expect the low level clouds will develop over the inland Coastal Bend and move into the Brush Country late tonight. Strong gusty south-southeast winds will occur Thursday afternoon as an area of low pressure deepens over west Texas.
549 AM CDT Thu May 7 2020 There is a high pressure moving east over the mid-Mississippi River Valley, keeping the sky clear and winds light. By the afternoon this high will be shunted off to the east of our region and a strong low will be moving into the area. Widespread rain will move into the CWA during the afternoon ahead of the low and attendant cold front, and will persist through the evening. The cold front will move through overnight bringing strong and gusty winds to the area even while rain lingers behind the front. The cold front will usher in cooler temperatures along the northwest flow as a strong high pressure moves into the area Friday. MRM The high will calm winds and clear out the sky as it settles into the region Friday.
Today will be several degrees warmer than yesterday as the warm south flow and 850 mb thermal ridge strengthen. Late tonight, a strong cold front will come down into the Big Country and move through the I-10 corridor by sunrise Friday, with perhaps some light showers occurring behind the front early Friday morning. Expect lows in the low to mid 60s. SJH (Friday through Next Thursday) On Friday, the aforementioned cold front will bring a continental airmass down from the northern Plains into western and central Texas.
1030 AM EDT Thu May 7 2020 High pressure centered over the mid-south this morning will slowly build in this afternoon allowing winds to gradually slack off later in the day. At the surface, high pressure will build into the Southeast, helping to calm winds as we progress through the morning and early afternoon hours. We'll mix into a remnant cold pool aloft today which will help keep temperatures on the order of 5 or so degrees cooler than yesterday.
Once this disturbance and associated cold front cross the area late this evening.
Temperatures are in the low 40s to low 50s. We'll stay dry throughout the day as high pressure sits over the area. Temperatures will remain below normal with highs in the low 70s and lows dropping into the 50s. High pressure will begin to break down as divergent upper-level winds move downstream ahead of an approaching upper-level trough. The aforementioned trough originating from the Montana/Canadian border is similar to a clipper system that we would typically see during the Fall/Winter seasons. The two systems appear to merge as the weaker trough is overtaken by the clipper system. Moisture will advect into the system as it tracks through the Mid-South with the weaker trough moving through northern TX and then MS.
A cooler airmass will settle across the area today behind a cold front. High pressure aloft will then strengthen across the western states and bring warmer temperatures back into the area Friday through the weekend.
Expect a cooler day today with highs in the 50s to lower 60s. This setup supports temperatures bottoming out near to just below freezing along and north of Interstate 90, where a Freeze Warning has been issued. Further south across portions of northwest IA and far southeast SD, overnight low temperatures have a lower probability of reaching the freezing mark so opted to go with a Freeze Watch for now. This will bring daily highs mainly in the 50s and nighttime lows in the 30s, nearing the freezing mark for some locations most nights.