Thursday, March 27, 2014

Late March Weather Bomb Update Twelve











Late March Weather Bomb event summary

AWCN14 CWHX 272342
WEATHER SUMMARY FOR NEW BRUNSWICK ISSUED BY ENVIRONMENT CANADA AT 
8:42 P.M. ADT THURSDAY 27 MARCH 2014.

** UPDATED WITH SOME ADDITIONAL WIND GUSTS AND VOLUNTEER SNOW
   REPORTS  **

AN INTENSE LOW PRESSURE SYSTEM PASSED SOUTH OF NOVA SCOTIA ON 
WEDNESDAY AND IS NOW EAST OF CAPE BRETON. THIS SYSTEM BROUGHT HEAVY 
SNOW, HIGH WINDS AND BLIZZARD CONDITIONS WITH NEAR ZERO
VISIBILITIES TO MANY AREAS OF THE PROVINCE.

THE FOLLOWING IS A SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY 
ENVIRONMENT CANADA AS OF 7:00 P.M. MARCH 27.

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL 
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT. 
SNOWFALL AMOUNTS ARE IN CENTIMETRES.

AIRPORT OBSERVATION SITES       PEAK WINDS (KM/H)    SNOWFALL (CM)

MONCTON                                 80             41
SAINT JOHN                              91              8
GAGETOWN                                76             10
BATHURST                                61              5

AUTOMATED OBSERVATION SITES

MIRAMICHI                               67
BAS CARAQUET                            80
MISCOU ISLAND                          100
DOAKTOWN                                52
RED PINES                               50
CHARLO                                  52
FREDERICTON ARPT                        83
FUNDY PARK                              57
BOUCTOUCHE                              95
GRAND MANAN ISLAND                      98
POINT LEPREAU                           87
ST. STEPHEN                             87
MECHANIC SETTLEMENT                     93

VOLUNTEER OBSERVATION SITES

MIDDLETON (NEAR SACKVILLE)                             43
BAXTERS CORNER                                         28
TRACADIE                                               19
OAK POINT                                              18
MIRAMICHI                                              18
MCNAMEE                                                15


END


AWCN11 CWHX 270836
WEATHER SUMMARY FOR NOVA SCOTIA ISSUED BY ENVIRONMENT CANADA AT
5:36 A.M. ADT THURSDAY 27 MARCH 2014.

AN INTENSE LOW PRESSURE SYSTEM PASSED SOUTH OF NOVA SCOTIA ON 
WEDNESDAY AND IS NOW EAST OF CAPE BRETON. THIS SYSTEM BROUGHT HEAVY 
SNOW, HIGH WINDS AND BLIZZARD CONDITIONS WITH NEAR ZERO
VISIBILITIES TO MANY AREAS OF THE PROVINCE.

THE FOLLOWING IS A SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY 
ENVIRONMENT CANADA AS OF 3:00 A.M. ADT.

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL 
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT. 
SNOWFALL AMOUNTS ARE IN CENTIMETRES.

MANNED OBSERVATION SITES       PEAK WINDS (KM/H)    SNOWFALL (CM)

GREENWOOD                              102             42
YARMOUTH                                96             41
SYDNEY                                  85             22
HALIFAX AIRPORT                        100             21

UNMANNED OBSERVATION SITES

GRAND ETANG                            172
BRIER ISLAND                           141
BACCARO POINT                          137
BEAVER ISLAND                          133
DEBERT                                 102
NAPPAN                                  98
CARIBOU POINT                           95
NORTH MOUNTAIN                          95
PORT HAWKESBURY                         87
UPPER STEWIACKE                         83
SHEARWATER                              80
WESTERN HEAD                            80
ESKASONI                                80
KENTVILLE                               74

VOLUNTEER OBSERVATION SITES

AMHERST                                                 40
PUGWASH                                                 34
BIBLE HILL                                              28
LAKE MAJOR                                              28
RIVER JOHN                                              25
PUGWASH                                                 25


END


AWCN15 CWHX 270835
WEATHER SUMMARY FOR PRINCE EDWARD ISLAND ISSUED BY ENVIRONMENT CANADA 
AT 5:35 A.M. ADT THURSDAY 27 MARCH 2014.

AN INTENSE LOW PRESSURE SYSTEM PASSED SOUTH OF NOVA SCOTIA ON 
WEDNESDAY AND IS NOW EAST OF CAPE BRETON. THIS SYSTEM BROUGHT HEAVY 
SNOW, HIGH WINDS AND BLIZZARD CONDITIONS WITH NEAR ZERO
VISIBILITIES TO MANY AREAS OF THE PROVINCE.

THE FOLLOWING IS A SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY 
ENVIRONMENT CANADA AS OF 5:00 A.M. ADT.

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL 
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT. 
SNOWFALL AMOUNTS ARE IN CENTIMETRES.

MANNED OBSERVATION SITES       PEAK WINDS (KM/H)    SNOWFALL (CM)

CHARLOTTETOWN                           93             53

UNMANNED OBSERVATION SITES

SUMMERSIDE                             113
NORTH POINT                            111
EAST POINT                             104
HARRINGTON                             100
ST PETERS                               89
MAPLE PLAINS                            83


END

Wind Gusts to 103 knot/119 mph at Buoy 44027 Under Review

...Wind Gusts to 103 knots/119 mph at Buoy 44027 Under Review...

On Wednesday March 26, buoy 44027 20 nm SE of Jonesport Maine recorded several wind gusts of 103 knots, or 119 mph. While these gusts seem suspiciously high, at this time we do not have any reason to totally discount them.

Sustained winds at the buoy seem perfectly reasonable, generally running 50 to 63 knots, or 58 to 72 mph, for several hours around midday on the 26th. A weather station at Brier Island Nova Scotia about 50 miles to the east recorded similar sustained winds to buoy 44027 on Wednesday, but only had a peak gust of 76 knots or 87 mph. Bottom line, the extreme gust factor from buoy 44027 seems unlikely, but not totally impossible. Something in the vicinity of 90 mph or 100 mph would have been reasonable, but 119 mph seems a bit high. It is possible there was some channeling of the winds coming out of the Bay of Fundy, but one would expect the sustained winds to also be higher if this was the case. At this time, there are no obvious signs of equipment malfunction. Normally, there is a second anemometer on the buoy, but it was not functioning at the time so there is no second data source.

The National Data Buoy Center is reviewing the data to try to determine if any equipment malfunction occurred. We will keep you updated when we hear more.

Late March Weather Bomb Update Eleven










Late March Weather Bomb Update Ten