Aikyam-Lab/Synoptic-Bench huggingface dataset:
THE HIGH PRESSURE SYSTEM THAT SLIDES INTO THE AREA THIS AFTERNOON WILL MOVE TO THE EAST DURING THE EVENING AND OVERNIGHT HOURS. BEFORE WE GET TO THE WARMER TEMPERATURES WE HAVE TO GET THROUGH ON MORE COLD DAY. WE WILL SEE AN UPPER RIDGE ACROSS THE WESTERN CONUS TRYING TO NUDGE EASTWARD SENDING WARMER AIR INTO THE PLAINS. WARM AIR ADVECTION THROUGH THE DAY WILL RESULT IN HIGHS THAT ARE 15 TO 20 DEGREES WARMER THAN TODAYS HIGHS.
JUST CLOUDS ATTM AND THIS SHOULD HOLD TRUE THROUGH THE DAY ALTHOUGH CANNOT RULE OUT BRIEF PERIODS OF -RA AT SHV/MLU LATER THIS MORNING INTO EARLY AFTERNOON AS THE UPPER LOW SHIFTS EAST FROM S TX INTO LA. MVFR CIGS WILL GRADUALLY FILL IN AS WELL THROUGH THE AFTERNOON AND ESPECIALLY THIS EVENING AS A COLD FRONT SHIFTS INTO THE REGION. /ISSUED 353 AM CST WED FEB 4 2015/ AN UPPER LEVEL LOW OVER SOUTH TEXAS THIS MORNING WILL CONTINUE TO MOVE NORTHEAST INTO SOUTH LOUISIANA BY 00Z AND OUT OF THE AREA TONIGHT. WITH HIGHS RANGING FROM THE LOWER 50S EASTERN AREAS TO NEAR 60 WEST. A COLD FRONT CURRENTLY FROM THE GREAT LAKES INTO KANSAS WILL MOVE SOUTH ACROSS ARKANSAS AND OKLAHOMA TODAY.
637 AM EST WED FEB 4 2015 A WEAK LOW PRESSURE SYSTEM IS BRINGING SOME LIGHT SNOW WHICH WILL DIMINISH TO SOME SNOW SHOWERS AND FLURRIES BY MID MORNING. YET ANOTHER COLD FRONT AND STRONG UPPER DISTURBANCE WILL BRING MORE SNOW IN FOR LATE TODAY INTO TONIGHT.
UPPER LEVEL RIDGE PRODUCING THE NORTHWEST FLOW SHIFTS EASTWARD AND FLATTENS TONIGHT SUPPORTING DEVELOPMENT OF A WARM FRONT WHICH MOVES THROUGH THE WESTERN HALF OF MONTANA OVERNIGHT. WITH A BROAD UPPER LEVEL RIDGE DOMINATING THE PATTERN. THE SHALLOW NATURE OF THE RIDGE RESULTS IN GENERALLY ZONAL FLOW ACROSS REGION THROUGH THE BULK OF THE PERIOD.
THE MOST RECENT MODEL RUNS HAVE TRENDED COOLER DURING THE TIME OF PRECIPITATION. PRETTY UNEVENTFUL DAY THURSDAY AS HIGH PRESSURE BUILDS INTO THE REGION.
LOW PRESSURE WILL MOVE EAST ACROSS THE SOUTHERN GREAT LAKES AND DRAGGING A COLD FRONT ACROSS INDIANA TONIGHT. A DEEPENING UPPER TROUGH BEHIND THIS COLD FRONT WILL CAUSE PRECIPITATION TO INCREASE BEHIND THE COLD FRONT. ARCTIC HIGH PRESSURE WILL BUILD ACROSS OUR REGION THURSDAY AND THURSDAY NIGHT AND THEN MOVE OFF TO THE SOUTHEAST.
A COLD FRONT WILL PROVIDE MORE WIDESPREAD SNOW LATE TODAY AND OVERNIGHT. A RELATIVELY PLEASANT DAY IN STORE TODAY AHEAD OF THE COLD FRONT THAT IS EXPECTED TO CROSS THE REGION TONIGHT. UPSLOPE SNOW SHOWERS LOOK LIKE A GOOD BET IN THE RIDGES.
BUST POTENTIAL IS OBVIOUSLY HIGH HOWEVER GIVEN THAT FASTER CLEARING WILL LEAD TO WARMER TEMPS AND THICKER STRATUS COULD KEEP MANY AREAS ONLY IN THE MID 50S. WIND FIELDS WILL BECOME LIGHT TODAY AS COASTAL TROUGH OVER THE WESTERN GULF SHIFTS EAST WITH A VERY WEAK PRESSURE GRADIENT FORCE OCCURRING OVER S TX. NEXT COLD FRONT IS PROG TO PUSH SOUTH INTO THE AREA LATE TONIGHT INTO THURSDAY MORNING.
AFTER 00Z A LOW PRESSURE AREA APPROACHING FROM THE GULF WILL BRING INCREASING CHANCES FOR SHRA/TSRA TO THE TERMINALS WITH MVFR/LOCAL IFR CIGS POSSIBLE AFTER 04Z. AN AREA OF LOW PRESSURE AND ASSOCIATED FRONTAL BOUNDARY IN THE CENTRAL GULF OF MEXICO IS MOVING EASTWARD AND WILL IMPACT THE COASTAL WATERS THIS AFTERNOON THROUGH THURSDAY AFTERNOON.
A warm front will push from southwest to northeast across north central Idaho this afternoon, and into west-central/northwest Montana this evening.
OVERALL MOISTURE AND CLOUD COVER WILL DIMINISH TODAY AS AN UPPER LOW TO THE NORTH CONTINUES TO LIFT AWAY FROM THE AREA AND UPSTREAM RIDGING BEGINS TO BUILD IN. AS HIGH PRESSURE SPREADS OVER THE AREA AND VERY LIGHT WINDS SET UP UNDER MOSTLY CLEAR SKIES. AN UPPER LOW MOVING OVER SOUTH CENTRAL TEXAS AND THE RIO GRANDE PLAINS WILL CONTINUE TO EJECT IN A NORTHEAST DIRECTION TODAY. WITH MID LEVEL RIDGING ITCHING TO BUILD IN FROM UPSTREAM. LOW TEMPS TONIGHT WILL BE IN THE LOWER HALF OF THE 50S. WEAK REINFORCING HIGH PRESSURE WILL ARRIVE THURSDAY. LOOK FOR COOLER DAYTIME TEMPS WITH THE ARRIVAL OF COOLER AIR AND THE EXTRA CLOUD COVER.
703 AM EST WED FEB 4 2015 HIGH PRESSURE WILL MOVE OFFSHORE TODAY. LOW PRESSURE WILL MOVE ALONG THE COAST TONIGHT.
TODAY THROUGH THURSDAY NIGHT UPPER LEVEL ANALYSIS HAS BROAD TROF ACROSS THE NORTH CENTRAL CONUS WITH RIDGE BUILDING ACROSS THE WEST COAST. CANADIAN MODIFIED ARCTIC HIGH PRESSURE IS SETTLING ACROSS THE NORTHERN PLAINS WITH COLDEST SURFACE TEMPS ACROSS NORTHEAST MONTANA. WARMER AIR WILL CONTINUE TO ADVECT INTO THE AREA ON SOUTH TO SOUTHWEST BOUNDARY LAYER FLOW. WITH SOME LOWS HOLDING IN THE 20S ACROSS THE HIGHER ELEVATIONS OF NORTHEAST WYOMING. WESTERN RIDGE WILL BUILD INTO THE ROCKIES AND PLAINS WITH PARTLY TO MOSTLY SUNNY SKIES EXPECTED.
Until then, dry conditions will continue through at least early to mid afternoon as clouds begin to increase ahead of an approaching cold front. This will force an arctic cold front through the region this afternoon and evening. A short-lived band of light snow is expected to follow the cold frontal passage late this afternoon into this evening. Given the abrupt plunge well below freezing overnight, some travel impacts may carry over into the Thursday morning commute as lingering moisture on pavement freezes overnight. The system will be quick to depart, leaving behind plenty of sunshine and cold blustery conditions on Thursday as highs remain just below freezing.
930 AM EST WED FEB 4 2015 LOW PRESSURE OVER THE CENTRAL GREAT LAKES WILL CONTINUE TO MOVE EAST TODAY. A COLD FRONT TRAILING THIS LOW WILL DROP SOUTH ACROSS THE LOCAL AREA BY LATE TODAY.
310 AM MST WED FEB 4 2015 HIGH PRESSURE WILL BUILD OVER THE DESERT SOUTHWEST RESULTING IN DRY WEATHER. HIGH TEMPERATURES IN THE 80S WILL BE COMMON ON THE LOWER DESERTS AS EARLY AS THURSDAY.
An upper level low pressure system is crossing TX this morning. The upper low will gradually open up today as it moves into Louisiana. There will be increasing forcing for ascent today in the form of DPVA and isentropic upglide over a developing warm frontal boundary across the northern Gulf of Mexico. The result will be a further eroding of the low layer dry air and a gradual increase in rain rates during the afternoon.
443 AM CST WED FEB 4 2015 THE COLD FRONT IS CURRENTLY LOCATED ACROSS CENTRAL KS.
STILL MIGHT BE A BIT ON THE HIGH SIDE WITH SNOW. TEMPERATURES WILL REMAIN COOLER THURSDAY AND ESPECIALLY THURSDAY NIGHT AS 850MB TEMPS WILL NOT GET ABOVE 0C. AND SKIES SHOULD BE CLEAR IN THE WAKE OF THE TROUGH.
919 AM EST WED FEB 4 2015 LOW PRESSURE WILL MOVE EAST THROUGH THE GREAT LAKES AND DRAPE A COLD FRONT THROUGH THE OHIO VALLEY THIS AFTERNOON AND EVENING. A STRONG ARCTIC HIGH PRESSURE SYSTEM WILL BRING COOL AIR TO THE REGION THURSDAY. THE HIGH WILL MOVE SOUTHEAST AND RETURN FLOW WILL BRING WARMER AIR FOR THE WEEKEND. CLOUDS WILL THEN BE ON THE INCREASE THROUGH LATE MORNING AND INTO THIS AFTERNOON AS A COLD FRONT CURRENTLY LOCATED ACROSS NORTHERN INDIANA DROPS ACROSS OUR AREA THROUGH LATE AFTERNOON. WITH PCPN THEN TRANSITIONING OVER TO ALL SNOW FAIRLY QUICKLY AS THE LOW LEVEL CAA KICKS IN.
1011 AM EST WED FEB 4 2015 HIGH PRESSURE WILL MOVE OFFSHORE TODAY. LOW PRESSURE WILL MOVE ALONG THE COAST TONIGHT.
530 AM CST WED FEB 4 2015 STRONG COLD FRONT WILL PASS THROUGH ALL TERMINALS THIS MORNING. /ISSUED 455 AM CST WED FEB 4 2015/ A DRY COLD FRONT CURRENTLY ACROSS KANSAS WILL MOVE THROUGH THE PANHANDLES TODAY. AS HIGH PRESSURE STRENGTHENS AND PUSHES SOUTHEASTWARD ACROSS THE PLAINS. TEMPERATURES QUICKLY REBOUND TO NEAR OR JUST ABOVE NORMAL ON THURSDAY AS AN UPPER LEVEL RIDGE BUILDS ACROSS THE SOUTHWESTERN U.
A STRONG COLD FRONT WILL THEN RESULT IN A WIND SHIFT FROM THE NORTH INITIALLY AROUND 15Z AT WWR/GAG. /ISSUED 443 AM CST WED FEB 4 2015/ THE COLD FRONT IS CURRENTLY LOCATED ACROSS CENTRAL KS.
608 AM EST WED FEB 4 2015 MORE SNOW IS EXPECTED TODAY AS AN ARCTIC COLD FRONT WILL MOVES SOUTH ACROSS THE AREA IN TANDEM WITH AN UPPER LEVEL DISTURBANCE. TEMPERATURES SHOULD TUMBLE FROM EARLY MORNING HIGHS NEAR FREEZING INTO THE 20S BY LATE AFTERNOON. SEVERAL CHALLENGES TODAY INCLUDE THE DEVELOPMENT OF FREEZING DRIZZLE AND AMOUNT OF SNOWFALL FROM THE SYSTEM THIS AFTERNOON. WPC HI/RES MODELS WERE SHOWING TOO MUCH MOISTURE IN THE LOW LEVELS. THE LOWER LAYERS CONTINUED TOO DRY TO SUPPORT FREEZING DRIZZLE. PATCHY FREEZING DRIZZLE IS STILL POSSIBLE THIS MORNING GIVEN LOW LEVEL MOISTURE CONVERGENCE ALONG WITH THE PASSAGE OF THE ARCTIC FRONT.
A COLD FRONT WILL PROVIDE MORE WIDESPREAD SNOW LATE TODAY AND OVERNIGHT. BUT THE TRAILING COLD FRONT WILL STRETCH BACK TOWARD THE MIDWEST. AS IT WILL RELY ON THE SPEED OF THE AFOREMENTIONED TROUGH. UPSLOPE SNOW SHOWERS LOOK LIKE A GOOD BET IN THE RIDGES.
954 AM EST WED FEB 4 2015 LOW PRESSURE WILL APPROACH FROM THE WEST TODAY THEN CROSS THE REGION TONIGHT. LOW PRESSURE WILL INTENSIFY EAST OF THE GULF OF MAINE THURSDAY THEN TRACK EAST OF NOVA SCOTIA THURSDAY NIGHT. AS THE LOW MOVES INTO THE STATE TONIGHT. REDEVELOPMENT OF THE LOW IS ANTICIPATED IN THE GULF OF MAINE BY EARLY THURSDAY MORNING. LOW PRESSURE IS EXPECTED TO PASS TO THE NORTH OF THE STATE THURSDAY MORNING. ANOTHER LOW CENTER WILL DEVELOP LATER IN THE DAY THURSDAY ALONG A COLD FRONT TRAILING THIS LOW.
628 AM EST WED FEB 4 2015 HIGH PRESSURE WILL PROVIDE SEASONABLE AND DRY WEATHER TODAY. LOW PRESSURE WILL DEVELOP IN THE GULF OF MEXICO AND MOVE OFF THE SOUTHEAST COAST TONIGHT INTO THURSDAY. DRY WEATHER WILL RETURN FOR THE END OF THE WEEK AS HIGH PRESSURE SETTLES OVER THE AREA AGAIN.
CHATTANOOGA AIRPORT, TN 53 30 39 22 / 10 30 20 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 53 30 34 15 / 10 40 20 0 OAK RIDGE, TN 52 28 34 16 / 10 50 20 0 TRI CITIES AIRPORT, TN 51 27 31 12 / 10 50 30 10.
455 AM CST WED FEB 4 2015 A DRY COLD FRONT CURRENTLY ACROSS KANSAS WILL MOVE THROUGH THE PANHANDLES TODAY. AS HIGH PRESSURE STRENGTHENS AND PUSHES SOUTHEASTWARD ACROSS THE PLAINS. TEMPERATURES QUICKLY REBOUND TO NEAR OR JUST ABOVE NORMAL ON THURSDAY AS AN UPPER LEVEL RIDGE BUILDS ACROSS THE SOUTHWESTERN U.
1020 AM EST WED FEB 4 2015 COLD FRONT CROSSES TONIGHT. HIGH PRESSURE CROSSES THURSDAY NIGHT.
926 AM EST WED FEB 4 2015 WEAK LOW PRESSURE WILL APPROACH FROM THE WEST TODAY AND WILL CROSS THE REGION TONIGHT DRIVING A COLD FRONT THROUGH THE REGION BY THURSDAY MORNING. LOW PRESSURE WILL INTENSIFY AS IT SHIFTS INTO THE MARITIMES ON THURSDAY WITH A STRONG NORTHWEST FLOW SETTING UP IN ITS WAKE. A RIDGE OF HIGH PRESSURE WILL BUILD IN FROM THE WEST THURSDAY NIGHT.
THESE CLOUDS ARE ORIGINATING FROM A GULF UPPER LOW THAT IS TRACKING ACROSS THE NW GULF COAST AS THE SUBTROPICAL JET MERGES WITH THE POLAR JET. PRECIPITATION (PORTIONS OF IT OVERRUNNING THE COOLER SFC AIRMASS) IS OVERSPREADING THE GULF COAST INTO CENTRAL MS/AL. HOWEVER, AN APPROACHING BROAD LONGWAVE TROUGH ROTATING AROUND THE E CANADIAN UPPER LOW IS PUSHING AN ARCTIC FRONT ACROSS THE CORN BELT REGION OF MO/KS. LOWER CIGS OF STRATOCU/ALTOCU WILL DEVELOP EARLY THIS EVENING AHEAD OF A STRONG COLD FRONT FORECAST TO SWEEP SEWD BTWN 05/05-07Z.
OBVIOUSLY CONDITIONS ARE NOT ROSY ALONG THE HIGHWAY 6 CORRIDOR EITHER. THE HIGH PRESSURE SYSTEM THAT SLIDES INTO THE AREA THIS AFTERNOON WILL MOVE TO THE EAST DURING THE EVENING AND OVERNIGHT HOURS. BEFORE WE GET TO THE WARMER TEMPERATURES WE HAVE TO GET THROUGH ON MORE COLD DAY. WE WILL SEE AN UPPER RIDGE ACROSS THE WESTERN CONUS TRYING TO NUDGE EASTWARD SENDING WARMER AIR INTO THE PLAINS. WARM AIR ADVECTION THROUGH THE DAY WILL RESULT IN HIGHS THAT ARE 15 TO 20 DEGREES WARMER THAN TODAYS HIGHS.
VFR CONDITIONS WILL PREVAIL UNTIL THE ARRIVAL OF A COLD FRONT DURING THE DAY TODAY. /ISSUED 352 AM CST WED FEB 4 2015/ A COLD FRONT WILL PLUNGE SOUTH ACROSS THE AREA TODAY BRINGING A BRIEF SHOT OF VERY COLD AIR THAT WILL LAST FOR ABOUT 24 HOURS. THE PRECIPITATION POTENTIAL BEHIND THE FRONT CONTINUES TO LOOK RATHER UNIMPRESSIVE AND GENERALLY EXPECT A FEW AREAS OF LIGHT RAIN OR DRIZZLE TRANSITIONING TO FREEZING DRIZZLE. LIQUID EQUIVALENT AMOUNTS WILL LIKELY REMAIN UNDER 5 HUNDREDTHS OF AN INCH BUT IT DOES NOT TAKE MUCH FREEZING DRIZZLE TO CAUSE PROBLEMS.
Given temperatures expected to climb into the 40s and lower 50s, the snow will also have to overcome some warmer grounds. Until then, dry conditions will continue through at least early to mid afternoon as clouds begin to increase ahead of an approaching cold front. This will force an arctic cold front through the region this afternoon and evening. A short-lived band of light snow is expected to follow the cold frontal passage late this afternoon into this evening. Given the abrupt plunge well below freezing overnight, some travel impacts may carry over into the Thursday morning commute as lingering moisture on pavement freezes overnight. The system will be quick to depart, leaving behind plenty of sunshine and cold blustery conditions on Thursday as highs remain just below freezing.
650 AM EST WED FEB 4 2015 LOW PRESSURE WILL APPROACH FROM THE WEST TODAY THEN CROSS THE REGION TONIGHT. LOW PRESSURE WILL INTENSIFY EAST OF THE GULF OF MAINE THURSDAY THEN TRACK EAST OF NOVA SCOTIA THURSDAY NIGHT. AS THE LOW MOVES INTO THE STATE TONIGHT. REDEVELOPMENT OF THE LOW IS ANTICIPATED IN THE GULF OF MAINE BY EARLY THURSDAY MORNING. LOW PRESSURE IS EXPECTED TO PASS TO THE NORTH OF THE STATE THURSDAY MORNING. ANOTHER LOW CENTER WILL DEVELOP LATER IN THE DAY THURSDAY ALONG A COLD FRONT TRAILING THIS LOW.
514 AM EST WED FEB 4 2015 LOW PRESSURE WILL MOVE EAST THROUGH THE GREAT LAKES AND DRAPE A COLD FRONT THROUGH THE OHIO VALLEY THIS AFTERNOON AND EVENING. A STRONG ARCTIC HIGH PRESSURE SYSTEM WILL BRING COOL AIR TO THE REGION THURSDAY. THE HIGH WILL MOVE SOUTHEAST AND RETURN FLOW WILL BRING WARMER AIR FOR THE WEEKEND. A COLD FRONT WILL BISECT THE CWA AT THE END OF THE DAYLIGHT HOURS TODAY.
639 AM EST WED FEB 4 2015 LOW PRESSURE WILL MOVE EAST THROUGH THE GREAT LAKES AND DRAPE A COLD FRONT THROUGH THE OHIO VALLEY THIS AFTERNOON AND EVENING. A STRONG ARCTIC HIGH PRESSURE SYSTEM WILL BRING COOL AIR TO THE REGION THURSDAY. THE HIGH WILL MOVE SOUTHEAST AND RETURN FLOW WILL BRING WARMER AIR FOR THE WEEKEND. A COLD FRONT WILL BISECT THE CWA AT THE END OF THE DAYLIGHT HOURS TODAY.
941 AM EST WED FEB 4 2015 HIGH PRESSURE WILL MOVE OFF THE COAST BY EARLY TODAY. A COLD FRONT WILL PASS THROUGH THE AREA LATE WEDNESDAY NIGHT INTO THURSDAY BEFORE HIGH PRESSURE RETURNS FOR LATE IN THE WEEK.
508 AM EST WED FEB 4 2015 AN ARCTIC COLD FRONT WILL SWEEP ACROSS THE REGION TODAY. SEVERAL CHALLENGES TODAY INCLUDE THE DEVELOPMENT OF FREEZING DRIZZLE AND AMOUNT OF SNOWFALL FROM THE SYSTEM THIS AFTERNOON. WPC HI/RES MODELS WERE SHOWING TOO MUCH MOISTURE IN THE LOW LEVELS. THE LOWER LAYERS CONTINUED TOO DRY TO SUPPORT FREEZING DRIZZLE. PATCHY FREEZING DRIZZLE IS STILL POSSIBLE THIS MORNING GIVEN LOW LEVEL MOISTURE CONVERGENCE ALONG WITH THE PASSAGE OF THE ARCTIC FRONT.
MOST OF OUR CWA WILL BE IN THE WARM SECTOR SOUTH OF THE WARM FRONT LATER TODAY AND TONIGHT BUT FULL WARMING WILL GENERALLY NOT BE REALIZED DUE TO CONTINUING CLOUDS. NRN EXTENT OF THE WARM FRONT WILL BE ALONG OUR NRN CWA BORDER TONIGHT. ON THURSDAY THE FRONTAL BAND AND PCPN WILL SAG SLOWLY SOUTH AGAIN AS THE SUPPORTING UPPER RIDGE WEAKENS. SO THE BAND CAN NO LONGER BE CALLED A WARM FRONT.
ISSUED BY NATIONAL WEATHER SERVICE LUBBOCK TX 901 AM CST WED FEB 4 2015 QUICK UPDATE TO ADJUST WINDS THIS MORNING FOR A SWIFT-MOVING COLD FRONT NOW PUSHING THROUGH THE OK PANHANDLE. /ISSUED 530 AM CST WED FEB 4 2015/ STRONG COLD FRONT WILL PASS THROUGH ALL TERMINALS THIS MORNING. /ISSUED 455 AM CST WED FEB 4 2015/ A DRY COLD FRONT CURRENTLY ACROSS KANSAS WILL MOVE THROUGH THE PANHANDLES TODAY. AS HIGH PRESSURE STRENGTHENS AND PUSHES SOUTHEASTWARD ACROSS THE PLAINS. TEMPERATURES QUICKLY REBOUND TO NEAR OR JUST ABOVE NORMAL ON THURSDAY AS AN UPPER LEVEL RIDGE BUILDS ACROSS THE SOUTHWESTERN U.
924 AM EST WED FEB 4 2015 LOW PRESSURE WILL TRACK TOWARD THE REGION THIS AFTERNOON. GIVEN ELEVATED INSTABILITY EXPECTED ALONG AND NORTH OF THE LOW TRACK. A WAVE OF LOW PRESSURE WILL MOVE NORTHEAST ACROSS AREA WATERS TONIGHT.
213 AM PST WED FEB 4 2015 A RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND ABOVE NORMAL AFTERNOON TEMPERATURES TO THE CENTRAL CALIFORNIA INTERIOR THROUGH AT LEAST THURSDAY WITH PATCHY LATE NIGHT AND MORNING FOG IN THE SAN JOAQUIN VALLEY.
MID ATLC HIGH PRESSURE MOVES AWAY FROM THE EASTERN SEABOARD AS E/ESE WINDS 8-13 KTS VEER MORE SE/S OVERNIGHT AND INCREASE TO 15-20 KTS AFTER MIDNIGHT.
1014 AM EST WED FEB 4 2015 EARLY VISIBLE SATELLITE PHOTOGRAPHS SHOW PARTLY TO MOSTLY CLOUDY SKIES WITH TEMPERATURES PRIMARILY IN THE LOWER 70S ALONG THE ISLAND CHAIN. LOCAL RADARS ARE DETECTING ISOLATED SPRINKLES IN AND AROUND THE LOWER KEYS. A LOW PRESSURE SYSTEM (1014 MB) IS LOCATED IN THE WEST CENTRAL GULF OF MEXICO. WITH AN AREA OF HIGH PRESSURE (1029 MB) CENTERED ALONG THE NORTH CAROLINA TAR HEEL COAST. EAST-WEST ORIENTED TROPOSPHERIC ANTICYCLONE CENTERED OVER THE BAHAMAS WILL SLOWLY RETREAT EASTWARD. AS A FULL- LATITUDINAL TROUGH DIGGING INTO THE EXTREME WESTERN GULF OF MEXICO PLOWS EASTWARD. WITH LOW PRESSURE IN THE WESTERN GULF OF MEXICO DEEPENING A TAD AND HIGH PRESSURE ALONG THE WESTERN CAROLINA COAST SLIPPING EASTWARD.
HIGH PRESSURE ALOFT WILL BRING DRY CONDITIONS WITH WELL ABOVE NORMAL DAYTIME TEMPERATURES INTO THIS WEEKEND. WATER VAPOR IMAGERY SHOWS A RIDGE OVER THE WEST COAST WITH PLENTY OF MOISTURE RIDING OVER THE TOP OF THE RIDGE AXIS ACROSS THE PACIFIC NORTHWEST. TEMPERATURES ACROSS SOUTHEAST ARIZONA RANGED FROM THE UPPER 30S TO THE LOWER 50S. SO WE MAY BE A BIT WARMER TODAY THAN YESTERDAY. WILL MAKE SOME ADJUSTMENTS TO THE HIGH TEMP FORECAST FOR TODAY TO INCREASE HIGHS A BIT. WITH HIGH PRESSURE IN CONTROL ACROSS THE DESERT SOUTHWEST THIS WEEK.
825 AM MST WED FEB 4 2015 HIGH PRESSURE WILL BUILD OVER THE DESERT SOUTHWEST RESULTING IN DRY WEATHER. HIGH TEMPERATURES IN THE 80S WILL BE COMMON ON THE LOWER DESERTS AS EARLY AS THURSDAY. HARD TO BELIEVE JUST 5 DAYS AGO CENTRAL ARIZONA WAS SEEING DAYTIME TEMPERATURES ONLY TOPPING OUT IN THE LOW 60S.
509 AM EST WED FEB 4 2015 FAST MOVING LOW PRESSURE WILL BRING LIGHT SNOW OVER LOCATIONS ALONG AND NORTH OF I-80 EARLY THIS MORNING. A COLD FRONT WILL PROVIDE MORE WIDESPREAD SNOW LATE TODAY AND OVERNIGHT. BUT THE TRAILING COLD FRONT WILL STRETCH BACK TOWARD THE MIDWEST. AS IT WILL RELY ON THE SPEED OF THE AFOREMENTIONED TROUGH. UPSLOPE SNOW SHOWERS LOOK LIKE A GOOD BET IN THE RIDGES.
530 AM EST WED FEB 4 2015 COLD FRONT CROSSES TONIGHT. HIGH PRESSURE CROSSES THURSDAY NIGHT.
916 AM EST WED FEB 4 2015 HIGH PRESSURE OVER THE AREA WILL MOVE OFFSHORE THIS AFTERNOON. LOW PRESSURE DEVELOPING IN THE GULF OF MEXICO WILL MOVE OFF THE SOUTHEAST COAST TONIGHT INTO THURSDAY. DRY WEATHER WILL RETURN FOR THE END OF THE WEEK AS HIGH PRESSURE SETTLES OVER THE AREA AGAIN.
126 PM EST FRI MAR 6 2015 HIGH PRESSURE DOMINATES. BUT STILL WELL BELOW FREEZING. HIGH PRESSURE BUILDS STRONG FROM THE WEST TO BE IN CONTROL OF THE WEATHER CONDITIONS THROUGH TONIGHT. TEMPERATURES SHOULD STAY BELOW FREEZING THIS AFTERNOON. HIGH PRESSURE BUILDS IN WITH DRY ATMOSPHERIC COLUMN IN PLACE.
311 PM CST Fri Mar 6 2015 (Tonight and Tomorrow) Upper low centered over the northern Baja Peninsula early this afternoon will move east over southern Arizona by tomorrow afternoon. Pseudo-zonal flow aloft over the forecast area this afternoon will begin backing to the southwest overnight and through the day tomorrow as the upper low tracks to the east. Morning low temperatures will be much warmer than this mornings with lower 30s expected. Dewpoints currently in the teens and 20s will increase into the 40s by late Saturday night ahead of the low. While the low moves toward the area, it will open up into a wave, and an upper level jet streak will move across the area in southwest flow providing lift for potential showers, mainly for southern areas.
A WEAK COLD FRONT WILL DROP THROUGH THE NORTHERN HIGH PLAINS TONIGHT. HIGHS THERE WILL BE SLIGHTLY COOLER THAN TODAY. A THERMAL RIDGE WILL ONCE AGAIN BUILD IN FROM THE WEST. PROMOTING HIGHS IN THE LOWER 60S. WITH THE HIGH TEMPERATURES FORECAST TO BE ABOVE AVERAGE ON SATURDAY. A BROAD RIDGE TO EXTEND ACROSS THE WEST COAST AS A BROAD TROUGH EXTENDS ACROSS ERN CANADA. A WEAK PACIFIC COLD FRONT WILL PUSH INTO THE AREA AND BRING AN INCREASE IN MID/HIGH CLOUDS.
AND AS THIS SYSTEM EVOLVES A RIDGE OF 925MB TEMPS ABOVE FREEZING WILL PROPAGATE THROUGH MUCH OF THE REGION ALONG AND WEST OF THE VALLEY. THE ABOVE FREEZING LAYER DOES NOT CORRESPOND TO THE STRONGEST AREA OF FORCING. UPPER LEVEL TROUGH OVER THE EASTERN PACIFIC EXPECTED TO CUT OFF WITH JET STREAM TO MOVE ACROSS THE NORTHERN PACIFIC AND ACROSS CENTRAL CANADA BY 84 HOURS. FLAT UPPER LEVEL RIDGE TO MOVE INTO THE AREA WITH JET STREAM ACROSS CENTRAL CANADA.
358 PM CST FRI MAR 6 2015 TEMPS WARMED TODAY INTO THE LOWER 50S UNDER MOSTLY SUNNY SKIES AND EASTERLY WINDS. HIGH PRESSURE PRESSURE HAS SETTLED IN THE DEEP SOUTH AND LOOKS TO BROADEN OUT ON SATURDAY WITH TEMPS EXPECTED INTO THE 60S.
Temperatures around the region have been warming quite nicely this afternoon as high pressure continues to build over the Northern Rockies.
VFR CONDITIONS WITH LIGHT AND VRB WINDS AS HIGH PRESSURE SETTLES INTO THE REGION.
348 PM EST FRI MAR 6 2015 HIGH PRESSURE CENTERED OVER THE REGION WILL DRIFT SOUTH AND WEAKEN OVERNIGHT.
356 PM CST FRI MAR 6 2015 SFC RIDGING WILL REMAIN ANCHORED OVER THE REGION THROUGH AT LATE SATURDAY.
THIS SEEMS LIKELY EVEN AS WARM ADVECTION AND EFFICIENT MIXING AHEAD OF THE SYSTEM MAY WELL WARM VIRTUALLY THE ENTIRE CWA ABOVE FREEZING BY AFTERNOON.
1221 PM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD SOUTHEAST OVER THE STATE TODAY. A WEAK AREA OF LOW PRESSURE WILL PASS NORTH OF THE REGION TONIGHT AND SATURDAY. THIS LOW AND ITS ASSOCIATED FRONTAL SYSTEM WILL CROSS THE EASTERN GLAKS THIS EVENING. LOWS WILL RANGE FROM 5 TO 10 ABOVE IN THE LOWER SUSQ RIVER VALLEY TO 10 TO 15F NORTH CENTRAL MOUNTAINS. THEREFORE EXPECT OCCASIONAL SNOW SHOWERS MAINLY OVER THE HIGHER TERRAIN OF THE NORTHERN ALLEGHENIES WITH 48 ACCUMS OF 1-2" POSSIBLE OVER THE NW MTNS BY 12Z MON. AND SRN ROCKIES/PLAINS INTO MEXICO MEAN TROUGH AND STRONG RIDGE E OF THE BAHAMAS. VFR CONDITIONS WILL BE THE RULE TODAY UNDER HIGH PRESSURE.
/ISSUED 526 AM CST FRI MAR 6 2015/ HIGH PRESSURE WILL SLOWLY MOVE EAST TODAY.
High pressure continues to keep the air mass warm and dry. High pressure aloft will provide dry and stable conditions with only high clouds moving across the area.
925MB TEMPERATURES ARE WARMER THAN YESTERDAYS HIGHS AND WE HAVE LOST SNOW COVER OVER OUR ENTIRE SOUTHWEST QUARTER OF THE FORECAST AREA. THE ECMWF MOS GUIDANCE BEING WARMER PROVED THE BEST ACROSS LOCATIONS THAT HAD LITTLE TO NO SNOW COVER. WHERE SNOW COVER STILL EXISTS ACROSS THE HIGHWAY 14 CORRIDOR AND LOCATIONS EAST OF INTERSTATE 29. ALL MODELS HAVE NOW BACKED OFF THE STRATUS BEHIND THE ACCOMPANYING COLD FRONT TO OUR NORTHERN ZONES AND MOVING IN VERY LATE TONIGHT. FOR BETTER OR WORSE DECIDED TO NOT KEEP THE MENTION OF PATCHY FREEZING DRIZZLE IN OUR NORTHEAST ZONES LATE TONIGHT. HOWEVER WOULD NOT TOTALLY RULE OUT A SPRINKLE OR FREEZING SPRINKLE IN OUR NORTH UNDER THE MID CLOUDS.
235 PM MST FRI MAR 6 2015 A WEAK LOW PRESSURE SYSTEM ALONG THE BAJA CALIFORNIA COAST WILL MOVE EAST ACROSS SOUTHERN ARIZONA TONIGHT AND SATURDAY.
VERY SUBTLE LEE TROUGH ALONG I25 MAY KEEP EASTERN MOUNTAIN SLOPES RELATIVELY WARM.
PATCHY MIST/FREEZING FOG MAY OCCUR EARLY THIS MORNING.
253 PM EST FRI MAR 6 2015 HIGH PRESSURE WILL SETTLE INTO THE MID ATLANTIC STATES BY EARLY TONIGHT. A THIN MOISTURE PROFILE AND THE PROGRESSIVE SPEED OF THE SYSTEM WILL LIMIT SNOW TO ONE TO THREE INCHES WITH THAT HIGHER TOTAL FALLING ACROSS THE HIGHER TERRAIN BOOSTED BY UPSLOPE FLOW.
HIGH PRESSURE SLIDES EASTWARD FROM THE HILL COUNTRY OVERNIGHT TO EAST TEXAS SATURDAY AFTERNOON AND THIS SHOULD TURN WINDS MORE EASTERLY LATE IN THE MORNING SATURDAY. /ISSUED 1052 AM CST FRI MAR 6 2015/ A PLEASANT DAY EXPECTED ACROSS SOUTHEAST TEXAS WITH HIGH PRESSURE EXTENDING FROM SOUTHERN TEXAS INTO THE MID MISSISSIPPI RIVER VALLEY. EXPECT LIGHT NORTHEAST WINDS AND TEMPERATURES IN THE LOW TO MID 50S UNDER MOSTLY SUNNY SKIES.
308 PM CST FRI MAR 6 2015 HIGH PRESSURE WILL CONTINUE TO DOMINATE THE WEATHER OVER THE MIDSOUTH THROUGH SATURDAY NIGHT. A GRADUAL WARMING TREND WILL TAKE PLACE OVER THE PERIOD AS THE HIGH BEGINS TO SHIFT EAST.
223 PM EST FRI MAR 6 2015 HIGH PRESSURE BUILDS OVERHEAD TONIGHT.
GFS/NAM SOUNDINGS NOT VERY DEEP WITH THE LOW LEVEL SATURATED LAYER.