6:21 a.m.
FGCN01 CWHX 200621
ENVIRONMENT CANADA SAINT JOHN RIVER BASIN TEMPERATURE AND
PRECIPITATION FORECASTS FOR NB POWER ISSUED AT 3:04 AM ADT WEDNESDAY
20 MARCH 2024.
MAXIMUM AND MINIMUM TEMPERATURE AND PRECIPITATION FORECASTS FOR THE
UPPER(U), MIDDLE(M) AND LOWER(L) SAINT JOHN RIVER BASIN
U = NORTH OF BEECHWOOD
M = BEECHWOOD TO MACTAQUAC
L = SOUTH OF MACTAQUAC
PRECIPITATION AMOUNTS ARE FOR THE 24 HOUR PERIOD FROM 12Z (0800 AST)
ON THE FIRST DAY TO 12Z ON THE FOLLOWING DAY
TEMPERATURE MAXIMA ARE FOR THE FIRST 12 HOURS OF EACH 24 HOUR PERIOD
(12Z THROUGH 00Z)
TEMPERATURE MINIMA ARE FOR THE SECOND 12 HOURS OF EACH 24 HOUR PERIOD
(00Z THROUGH 12Z)
WED. MAR 20, 2024 TO MON. MAR 25, 2024 (DEG. C)
| W/T | T/F | F/S | S/S | S/M |
TEMP U | 2/0 | 0/-8 | -5/-12 | -4/-9 | 0/-9 |
M | 3/0 | 1/-7 | -3/-10 | -3/-6 | 1/-7 |
L | 4/1 | 1/-5 | 0/-8 | -1/-2 | 1/-4 |
WED. MAR 20, 2024 TO MON. MAR 25, 2024 (MM)
| W/T | T/F | F/S | S/S | S/M |
PCPN U | 3-20 | 5-20 | 0-0 | 0-5 | 0-0 |
M | 5-10 | 2-5 | 0-0 | 5-15 | 0-0 |
L | 3-10 | 0-6 | 0-0 | 15-35 | 0-2 |
TEMPERATURE NORMALS FOR THE PERIOD (DEG. C):
| MAR 20 | MAR 25 |
TEMP U | 2/-9 | 3/-7 |
M | 3/-7 | 4/-6 |
L | 4/-7 | 5/-6 |
SYNOPSIS: A SLOW MOVING AND INTENSE LOW PRESSURE SYSTEM WILL MOVING INTO NEW
BRUNSWICK TONIGHT AND EXIT ON FRIDAY MORNING. HEAVY SNOWFALL IS EXPECTED OVER
THE UPPER BASIN, PREDOMINATELY IN THE HEADWATERS. A MIX OF SNOW AND RAIN IS
EXPECTED OVER THE LOWER REACHES OF THE BASIN, WITH LESSER AMOUNTS. THE LOW WILL
EVENTUALLY USHER IN A COOLER THAN NORMAL AIR MASS, WHICH WITH DELAY THE MELT OF
THE FRESH SNOW.
AT THIS TIME, THERE IS MAJOR UNCERTAINTY REGARDING THE TIMING AND TRACK OF THE
NEXT LOW PRESSURE SYSTEM IMPACTING SOME TIME LATE THIS WEEKEND. CANADIAN AND
FOREIGN GUIDANCE ARE INDICATING THAT THE LOWER OR MIDDLE AND LOWER BASINS WILL
BE IN THE SWATH OF HEAVY PRECIPITATION, BUT THERE IS HIGH UNCERTAINTY REGARDING
TYPING AND TEMPERATURES OVER THE LOWER BASIN, WHERE THERE IS A SLIGHT CHANGE OF
A CHANGEOVER TO RAIN.
THE FORECASTER MAY BE CONTACTED AT 1-902-426-4813 OR AT
WEATHERASPC(a)EC.GC.CA
END/ASPC