780  
WWCN02 CYZX 180930  
WEATHER BULLETIN FOR 5 WING GOOSE BAY PREPARED BY THE JOINT  
METEOROLOGICAL CENTRE AT 6:30 AM ADT WEDNESDAY 18 JUNE 2025.  
 
LOCATION: 5 WING GOOSE BAY (CYYR)  
 
TYPE: WIND WARNING IN EFFECT  
DESCRIPTION: SURFACE WIND GUST GREATER THAN OR EQUAL TO 30 KNOTS  
VALID: 18/1300Z TO 19/0200Z (18/1000 ADT TO 18/2300 ADT)  
 
TYPE: GUST SPREAD WARNING IN EFFECT  
DESCRIPTION: GUST SPREAD OF 15 KNOTS OR GREATER  
VALID: 18/1300Z TO 19/0200Z (18/1000 ADT TO 18/2300 ADT)  
 
TYPE: THUNDERSTORM ADVISORY IN EFFECT  
DESCRIPTION: THUNDERSTORMS WITH THE POTENTIAL FOR CLOUD TO GROUND  
LIGHTNING ARE EXPECTED WITHIN 30 NM  
VALID: UNTIL 18/1130Z (UNTIL 18/0830 ADT)  
 
COMMENTS: A LOW PRESSURE SYSTEM WILL APPROACH FROM THE WEST TODAY,  
PASSING TO THE NORTH OF THE REGION. STRONG AND GUSTY SOUTH TO  
SOUTHWEST WINDS WILL DEVELOP THIS MORNING IN THE WARM SECTOR WITH  
GUSTS NEAR 40 KNOTS AND GUSTS SPREADS OF 15 TO 20 KNOTS DURING THE  
DAY TODAY. WINDS WILL EASE IN THE WAKE OF THE COLD FRONTAL TROUGH  
AS THE SYSTEM CONTINUES TO TRACK OFF TO THE NORTHEAST.  
 
ADDITIONALLY, THUNDERSTORMS HAVE DEVELOPED 30 NM TO THE SOUTHEAST  
OF THE WING AND WILL CONTINUE TO TO MOVE NORTHEASTWARDS. THERE ARE  
MORE STORMS THAT HAVE DEVELOPED FURTHER SOUTHWEST AND WILL SLIDE BY  
20 TO 30 NM TO THE SOUTH OVER THE NEXT HOUR OR TWO. AT THIS TIME,  
THUNDERSTORMS ARE NOT FORECAST TO COME WITHIN 5 NM OF THE WING BUT  
THE SITUTATION WILL BE CLOSELY MONITORED.  
 
NEXT UPDATE: THIS BULLETIN WILL BE UPDATED BY 18/1130Z (18/0830 ADT)  
 
END/JMC  
 
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