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36
METEOROLOGY, 1911.
January and February.—During the first twelve days of
January the distribution of pressure underwent considerable
variations, disturbances moving in various directions,
and strong and high winds were felt daily in many parts
of the country.
On the 11th and 12th the conditions were governed
by a complex disturbance which produced the two most
stormy days of the first quarter of the year.
After January 12th the conditions were greatly altered,
and for several weeks, down to the middle of February,
areas of high barometric pressure were in the ascendant
over these islands and Western Europe generally; but
notwithstanding the existence of the anti.cyclones, the
weather itself differed from time to time. There were
successive days of cloudless or all but cloudless skies, with
many hours of bright sunshine; others were overcast and
dull to gloomy, and in some localities there was a good
deal of fog at times. Without any marked alteration in
the pressure distribution, a sudden change of temperature
occurred in the last night of the month, and on the morning
of February 1st there was frost in nearly every part of
the Kingdom. After this the cold moderated somewhat,
but temperature continued below the normal for some
days. A striking feature of the anti.cyclonic period was
the dryness of the weather. Over a very extensive region