Oxford Democrat. [volume] (Paris, Me.) 1833-1933, 1891-12-08
rsu wIArs1a BUREAU

otrirr. l-sl
rsU WUArsgR BUREAU.
withs ,i.s to making The service ~
the N-aihrt hur,,u ~ tlIr grcitr.t pa.-
.lblc ,,lur io The puhli'. .omr cl,,ngrs
arr i-.ing mite. Ia Whlrt attention u.
call.i Ia the iolloslns cipulir from the
l'or lsul stiiioni
Ofiic- 20 the I. :. Weather llnt-au.
i"ril,nl. Ne, Nov. ~. ispl.
Al those Nl,o arr Interested IN Ne
tcorplogy or the work ~ the Wciih-r
rurrau. =. admlni.t-rri Nv tl- prpiri-
meni 10 Nsficulturr, arr corli ,lly W..
,i,rd a. call ~ thr weather Burnu Of
fc,. on the fourth nsor ~ the fif.t W.
tion.l Rank Illildlng Among the book'
In N. lihrsry furni.hs,l by the Govern
m~ut. nrr .rirniihc sni proi-.sionil
paper. Nhlch arr very lntrtrsiins, nl.o
riiufall AID temperature yhtrts, Nraih.
~ msp,, and fe,ori. which would D.
20 gr,sst value to auy Que de.iring iufo'-
nation IN r-g,rl to a.. cllmsiolngv of
anv s.,tE,n or vicinity whcrv obssT,i.
lions have ls.su carried ou.
Particular attention I. invitsi 90 thu
daily weather charts issuci from thl'
oflcv. as h-lng Instructive % mtny Nl"
ha,. ac,'css To- them. They arr pasts'i
In many publir plsc~.. furni.h"d a. The
city .chool. anl mtilrl Ia in,iltutlons
- learning throughout tho state.
The chief oi the Weather bureau has
lc,.kIcl 10 di.irihuis thss- charts a.
widely q. possible, IN orirr that the ln
islllgrnt part ~ every community may
utilize them by m,king .pccial ani lo-
c,l pr-iigiious. The folloslng sspli.
nation takrn ifum the rrpofi ~ the thlCf
70 the wciih-r Burrau I. given for tn
benefit 10 all.
These m,p. nu' only cont,in the for''-
east. prepared in Washington aud the
local forecasts, hut also ~. data on
which the forecasts ATE b,.s,l, so that
they may bc studied aud prrsou,l yun-
clu.ion. drawn 10y every one engaged iu
iny profession oT bu.in~ss an-yiel bi
the scathcr aud ,hl. Include. Ill cltss.'
20 hu.lne.s.
The data embodied IN the map, arr
the air pressure, the temperature at
o'clock 4. ", 18th m'rli,n tims, the
minlmum temperature. sind dlrvctiou
aud velocity, the character ~ the wealth
thsr at the hour ~ observation and the
amount 20 rain ani SNOW. \. s"on a.
the chsrilng of these data I. complets~i
th. isobar. (lines connecting plirr. or
embracing .~Ction. 20 ~Iual alt pr-.''
urrl are drawn for each tenth ~ an
inch. l.oihcrm. (line. connecting place.
having the same degree of temperature
ar- drawn fot zach ten degrees; the .,,-
,lon az .e,tion. ~ cuuniry having Tia
highest or loN..i air pressure arr marx.
.j, respectively, "lligh" ani "Iov.
The former I. anil-ryclonlc anil the lat
ter cyclonlc in ". cfryt.. or Ia other
words, ths ara coveted by . high ptcs.-
ur- ~ air usually has clear ani cool, ~
cold weather. whereas th" rrNcrs. u
~. case In advance 20 aud surronndln.
al arr, ~ Low pressure, where rain or
snow aud clouilne.., With compir,-
lively high temperature prevail. The
drifi of IA. atmosphere being from we.i
a. east, the clarilng ~ the.r cycloulr
and anll-cyrlonic arra., by isohars, l.
necessary Ia show NJ glance their r.
.pccti,r c-nirc. sni the direction IN
which they arr hridlng. graphically por.
trayri by the curvature ~ the several
unhfok.n lins., aud by the arrow.
showing the Wind direction, the
air flowing Into the ''i.ow" With spiral
Insard motion, contrary to the move
meni. ~ the hand. 90 sstch, aud oui
of "IIigh" With the hand. of q watch
After q little study on the part Of "a"
Intelligent observer II \. evident that th"
nearer the AREA. ~ high and low ptr.-
sure are Ia each other, and the greater
the din. renee IN the pressure. the NOR"
rapid vill b. the fOs ~ air from the
gr,aier Ia th. lcs.er pressure. Tue leo
Iherm. Temperature llnc.) vary accord-
log Ia the i.obat.. n low prc..ur
ARA 4. Advancing eastward over the mll-
III. latitude. ani high pressure are, l.
moving eastward from the Tar west or
northwest, the i.Otherm. will assume to-
wanl the Ierr-ndlcul,r u the conditions
are static, |. =. that thsr. I. but little yari-
alton In the pressure, the isoiherm. VIII
appear Ina nearly horizontal position,
according to the latitude. Cold waves,
weather aud temperature changes,
the probability of thunder storm. or
other severe local storm. are easily 10
Gated 10y giving the daily weather nap.
a uiOtlFnt rtuIls lH' .fN'fh hN- w
storm. will gradually un,eil them ..l'c.
Ia the mind 30 the .tu,ient ~ the mip,
and the app .rcntly unlnielligiblc m,.s
of line. aud figures ~ a day become- the
guide for business Transaction. of any
character. That severe logal storm. o.
cur In the southeast quadrant of low
pressure AREA, that the Wind will bick
from southwest to northwest " the
los pressure area move. south of a
given place, ar shifts from northeast Ia
southwest as the storm moves north of
the place; that th. temperature ri.e. Ia
advance ~ q storm aud fall. after u h,.
passed.: that storm. generally move in
the direction 81 the greatest rainfall, or
.noxf,ll. or where the air !. most hu.
mid. ARE all fact. evolved by study of
the maps.
The map. is.ucNi nj Portland contain
IN explanation of the meteorological
seatarc. affecting this district.
T.. 4. Jo>E-,
Observer Weather bureau.