SUNDAY, FEBRUARY 10, 1991
TO
ADVERSE
WEATHER
DURING NO AIRCRAFT WAS DIVERTED DUE MONTH. THE YELLOW FIRE DANGER WARNING WAS IN EFFECT ON JANUARY 6, 20, AND 27.
SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
WEATHER
SYSTEM
SIGNAL
WINTER
STRONG
MONSOON
MONSOON
WINTER
STRONG
MONSOON
MONSOON
WINTER
STRONG
MONSOON
MONSOON
DATE & TIME OF
HOISTING
JANUARY 5
10 AM
JANUARY 10
1.30 AM
JANUARY 13
1.30 AM
DATE & TIME OF LOWERING
JANUARY 5 2.30 PM
JANUARY 10
5.40 AM
JANUARY 14
9 AM
THE
13.
THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL WERE:
TOTAL BRIGHT SUNSHINE
MEAN DAILY GLOBAL SOLAR RADIATION
TOTAL RAINFALL
MEAN AMOUNT OF CLOUD
MEAN RELATIVE HUMIDITY
MEAN DAILY MAXIMUM AIR TEMPERATURE
MEAN AIR TEMPERATURE
MEAN DAILY MINIMUM AIR TEMPERATURE
MBAN DEW POINT
TOTAL EVAPORATION
109.9 HOURS; 42.5 HOURS BELOW
NORMAL
8.85 MJ/SQ. METRE; 2.78 MJ/SQ. METRE
BELOW NORMAL
28.7 MM; 5.3 MM ABOVE NORMAL
73 PER CENT; 15 PER CENT MORE THAN
NORMAL
81 PER CENT; 10 PER CENT HIGHER
THAN NORMAL
18.8 DEGREES CELSIUS; 0.2 DEGREE CELSIUS
ABOVE NORMAL
16.9 DEGREES CELSIUS; 1.1 DEGREES CELSIUS
ABOVE NORMAL
15.4 DEGREES CELSIUS; 1.8 DEGREES CELSIUS
ABOVE NORMAL
13.5 DEGREES CELSIUS; 3.3 DEGREES CELSIUS
ABOVE NORMAL
59.3 MM: 38.2 MM BELOW NORMAL
/8