Best Weather Forecast Service Winnipeg Near Me

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4worldlovers: SIGNIFICANT WEATHER DISCUSSION ISSUED BY THE PRAIRIE AND ARCTIC STORM PREDICTION CENTRE OF ENVIRONMENT CANADA AT 2:00 PM CDT MONDAY AUGUST 21 2023.

ALERTS IN EFFECT...SPECIAL AIR QUALITY STATEMENTS FOR PARTS OF THE NORTHWEST TERRITORIES, ALBERTA AND SASKATCHEWAN. RAINFALL WARNING FOR PANGNIRTUNG. FOG ADVISORY FOR IGLOOLIK.

SYNOPTIC OVERVIEW...ALOFT, AN UPPER LOW SITS NEAR SOUTHAMPTON ISLAND WITH A BROAD TROUGH SOUTHWARD THROUGH NORTHERN QUEBEC AND NORTHWESTWARD INTO THE HIGH ARCTIC. STRONG UPPER RIDGING OUT AHEAD OVER GREENLAND. MEANWHILE, AN UPPER RIDGE IS BUILDING OVER THE SOUTHERN PRAIRIES AS A TROUGH ALONG THE WEST COAST SUPPORTS A STRENGTHENING NORTHERLY UPPER LEVEL JET MOVING UP THE WESTERN U.S. AND TURNING EASTWARD ALONG THE INTERNATIONAL BORDER. AN UPPER LOW OVER HAIDA GWAII, DIGGING SOUTHEAST INTO CENTRAL BRITISH COLUMBIA.

AT THE SURFACE, A 995 MB LOW IS OVER FOXE BASIN. FURTHER SOUTH A 994 MB LOW SITS OFF SOUTHERN BAFFIN ISLAND WITH A FRONTAL WAVE OVER DAVIS STRAIT, WITH MOISTURE STREAMING NORTH ALONG THE WARM CONVEYOR BELT. A 1009 MB LOW OVER NORTHERN ALASKA WITH A COLD FRONT SWEEPING SOUTHWEST THROUGH THE GULF OF ALASKA AND A STATIONARY FRONT EXTENDING FROM THE ALASKA LOW RUNNING SOUTHEAST ACROSS THE MACKENZIE VALLEY AND INTO NORTHERN SASKATCHEWAN. A 1028 MB HIGH SITS OVER THE ONTARIO/ MINNESOTA BORDER WITH RIDGING WESTWARD INTO CENTRAL ALBERTA AND SOUTHEASTWARD ACROSS THE GREAT LAKES.

PRAIRIES...PRECIPITATION STREAMING ALONG THE STRONG JET RUNNING FROM CALIFORNIA INTO MONTANA WILL CONTINUE TO LIFT NORTHWARD BRINGING SHOWERS ACROSS THE SOUTHERN PRAIRIES. THIS PUSH OF REMNANT MOISTURE FROM TROPICAL STORM HILARY HAS BEGUN TO BRING RAIN TO SOUTHERN ALBERTA AND SOUTHERN SASKATCHEWAN AND WILL MOVE INTO INTO MANITOBA TONIGHT. THIS IMPULSE WILL CARRY MORE SIGNIFICANT ELEVATED INSTABILITY WITH IT BRINGING THE POTENTIAL FOR LOCALLY HEAVIER SWATHS OF CONVECTIVE RAINFALL AND EMBEDDED THUNDERSTORMS SUPPORTED BY STRONG ISENTROPIC LIFT AND MOISTURE TRANSPORT NORTHWARDS INTO SOUTHERN SASKATCHEWAN OVERNIGHT TONIGHT. STRONG DYNAMICS IN PLACE BUT LITTLE IN THE WAY OF SURFACE BASED INSTABILITY WITH EXTENSIVE CLOUD COVER OVER THE AREA OVER THE NEXT FEW DAYS, SO LOOKING AT WEAK, NON-SEVERE THUNDERSTORMS.

AMOUNTS WILL BE HIGHLY VARIABLE, BUT BROADLY LOOKING AT 10 TO 25 MM FROM TODAY THROUGH TUESDAY NIGHT WITH LOCALLY HIGHER SWATHS THAT MAY APPROACH 40 MM OVER PARTS OF SASKATCHEWAN. LOCALLY HIGHER AMOUNTS ARE ALSO FORECAST FOR EXTREME SOUTHWESTERN ALBERTA, WITH 20 TO 30 MM ON TAP DUE TO UPSLOPE ENHANCEMENT.

PLENTY OF SMOKE ALOFT OVER THE SOUTHERN PRAIRIES TRAPPED AHEAD OF THE FRONTAL BOUNDARY SO MOST FORECASTS WILL CARRY THE MENTION OF HAZE. SEVERAL AREAS DOWNSTREAM OF ACTIVE FIRES ARE SEEING SMOKE AT THE SURFACE, INCLUDING NORTHERN ALBERTA, EXTREME NORTHWESTERN SASKATCHEWAN AND THE MOUNTAIN PARKS, AND SPECIAL AIR QUALITY STATEMENTS ARE IN EFFECT FOR THESE REGIONS. WILL HAVE TO MONITOR AQ OBSERVATIONS AT THE SURFACE TO SEE IF ANY SMOKE MAKES ITS WAY DOWN TO THE SURFACE ELSEWHERE.

NT...WILDFIRE SMOKE WILL CONTINUE TO BE AN ISSUE FOR MOST COMMUNITIES AROUND GREAT SLAVE LAKE FOR THE NEAR FUTURE. SHIFTING WINDS WILL PUSH SMOKE PLUMES IN VARIOUS DIRECTIONS, SO INTERMITTENTLY POOR AIR QUALITY IS EXPECTED.