| Show t States Weather Bureau in in Utah I t LANCE LANOE at the tho A pictures s will give Ic a 11 lino Idea to toi i the renders readers of the appliances of ofa o ol 1 a l weather 1 office TV T r view lew shows the tower on en r ore are exposes time the wind nInd vane lne yin I I II cups anti anil sunshine recorder The Th wind ane vane Is readily distinguish distinguishable 1 I able but the anemometer cup CliP or ot do de dove vf ve 0 for measuring me the winds velocity r 1 J Is Ls somewhat obscured as a Is I also the I 1 11 recorder but these will be cx eX I pined later at r In the tho foreground Is i 1 iI s I T shown the standard shelter helter In which I the thermometers th arc are exposed i In figure fie re 2 Is exhibited u standard I Y y 1 0 1 t ti is i i I J A rI t t r I f f s t Jb Y I Ii r f fi fj i J i i j I e gil I 1 I t tI t I 1 1 i J L t I I I 1 1 I I L l 1 1 I 1 I f r rp i r 1 I u c tf I ex mr I S 1 lt tl 1 II II j it 4 K I a z BIS r r r C r i f or dl a an O V I t Ml f WJk j h YlI J W J I I n dear dearO J I I 1 h JY I IJ I J Y I bureau u Instrument stand To the right on this stand Is la the triple l II I I register TC ster as It has three pens I 1 4 i f writing on tho drum The drum Is I made II to revolve reole l h by y a l power clock which r i turns tho the drum once around every eve six J I hours or four times tones a day da The pens I which write on this drum are tTe connected j r h 1 t electrically with the apparatus I on tho the roof The the I I II anemometer or wind measurer the ther I I r sunshine recorder and the rain gage TIle The apparatus lJ Is so RO arranged that 1 I every ve minute of tune time a record Is made madei i j 1 I I on tho the revolving drum of t the direction l t I of or the wind ind tho the sunshine if it any a and andI p I also aloo every time a l hundredth th of at an Inch I If 1 of or rain falls and a mile of or wind ind passes pa ses I t Il I Salt Lake City a record is made f on the tho drum Tho pipe In the center of or orI I h tho the tower carries the cable which trans transmits transI I mats mits the electrical Impulse from the In Instruments Instruments Instruments on tho the roof to the pens of tho the recording apparatus MEASURING r G DEVICE DEl r ICE I I The anemometer or wind measuring m e eI I i device delce Is shown In figure fiHe 3 It sits ails on 1 tho the floor and at the extreme lefthand i end of oC the tho figure fi rc The revolting cups are nr so s geared up with ith clockwork that every time tiro the cups revolve resolve times a ai i contact is made mL o and tie to pen makes suitable record on tho the revolving mowing revo drum I G Described bed above The fhE sunshine recorder Is shown In Ini i figure fl uro 2 and is standing to the tho right on ona ona ona a drawer pulled out This recorder con consists consists y of or a blackened bulb which con contains contains talus an all air all chamber with mercury at atthe atthe atI I the bottom of the tho air all chamber When hen Il tho the sun still rises the tho black bulb absorbs f tho tiro heat rays the air all expands and II I forces the mercury post past two contacts II ind nd as long Oll o as us n s the tho contact Is main maintained ma n tamed a sunshine record Is made on I I s e Ie the tho revolving drum but when the sun goes under a cloud or sets In the west then the black bulb cools the air con contracts contracts contracts tracts and the mercury mercur falls fails away awa from the tine contact and no record Is made The i shelter holter In the tho fore rore foreground ground of figure 1 IB lD a n standard one It ItIs ItIs Itis Is painted white so that tho rays ra 9 from from tho the sun will bo be reflected and thus thua the tho shelter will not become unduly heated It Is also rondo O with latticed that the air r may nm pass through freely When hen thermometers are arc exposed In a shelter of this pattern they are arc then capable of or registering only on shade shado tem temperatures temperatures temi i or tho the real temperatures of ot tho the theair aIr ar which for meteorological purposes arc are most mORt desired HUMIDITY This shelter contains four foul thermometers a maximum a i minimum and a wet and dry dr bulb The maximum thermometer thermometer eter of or course registers the tho highest temperature and the minimum ther thermometer thermometer thermometer registers the lowest tempera temperature ture t ee The wet and dry bulb thermometers are arc so called because e tho the wet bulb has a cloth wrapped around Its bulb When hen an observation Is taken tho the cloth Is wetted welted then both thermometers aro are whirled and as the water evaporates from the tine wet bulb thermometer that Instrument cools and Its temperature will wI be 00 lower than tho dry d bulb Tho The difference between these two readings Is a measure of or tho the humidity of or tho at atmosphere atmo atmosphere mo phere If l you YC U will turn to figure 3 you Ou will see the Ule wet and dry dr bulb ther thermometers thermometers on a n stand to the tho right of or ortho tho tine cut These thermometers are so s I arranged that they the may be rapidly I whirled by b turning the crank RECORDING T R The Instrument room of ot the Snit Salt Lake weather Heather bureau office Is shown partial partially ly l by figure 2 Hanging on the tho wall in hi hithe inthe Intine i the tine background aro are two barometers by b which the pressure of oC tho the air all may ma be accurately measured III caB At tho the end of tho stand and to tho the right Is the tho triple register already alread described In the center cen center ter tel of o the stand Is a barograph This instrument is really a writing barome barometer ter that Is It makes a trace following the tho varying ar pressure of or tho atmosphere This Instrument Is most valuable of or oran any an for the use of private Individuals forecasting the tho weather As tho the trace tiace goes down then warmer weather ac accompanied accompanied accompanied companied by rain or snow will follow but should the trace rise then cool and I fair fall weather will follow rollow I Tho The two Instruments In tho the fore Coro foreground foreground ground round of oC figure 2 are aro sunshine record recorders ers The rhe one ono to tho right Is tho the ono one used at Salt Lake City and records the amount of or sunshine electrically The Theone Theone Theone one to the right Is a photographic sun sunshine sunshine sunshine shine recorder and Is used u d for Instruction Instruction instruction tion purposes only The two thermometers shown to tho the left of or figure 2 and 1 tr i I t 1 iI t t r I 1 p f 1 t a IrI Iri i i t ii i 4 mounted horizontally are arc a set jot of or maximum max maximum and minimum thermometers thermometers and andare arc are so exposed exp d In tho the thermometer shel slid shelter shelter ter on the roof of the time Boston building ELECTRIC RAIN OlAIN l ASURE Figure 3 shows a collection of or In Instruments Instruments instruments Tho The most Interesting ono one is the time recording rain r n gage page shown In tho the center of the cut The upper part Is the receiver and leads the rain by means of ofa ofa ofa a funnel runnel into a little tipping bucket This bucket Is hi so ISO made that taut tn Lt when one of or an inch of ot rain falls on the ground then the bucket tips Ups an nn electrical contact Is made sending an electrical Impulse to the tho triple register above described By D tho the means ft Cf this Instrument tho the rain fall Is measured m electrically Ono One cart can then them know Imo the beginning and ending of or each rain and also the time rate at nt which It fell foil To ro the time left eft of the tho tipping bucket rain gage Is an ordinary gagu gaga which is just as ns accurate as the one just described but it does not register the tho rain fall The rain Is collected by bytho bythe bythe the tho receiver at the top and then led by means of or a funnel runnel Into a tube which Is Inside of the gage gago In actual practise but In the cut Is shown just left of ot the thu gage This tube is exactly the tho area of or the receiver r elver in so o that when ono one inch of or rain falls on tho the ground then It will trill rise 10 Inches In Inthe Inthe the time tube Tills This magnifies tho the amount and furnishes a means by which the rainfall may ml be bo measured to ono one one ono hundredth of an nn Inch The description of ot these Instruments is necessarily brief But those of o tho the public who are aro Interested arc aro cordially Invited to the weather bureau office to Inspect the instruments and tho the meth moth methods methods ode of forecasting that they may ma get a amore amoro amore more moro minute explanation WEATHER IN UTAH During the past year Important changes have havo taken paco In tho the or 01 organization organization of or tho tiro weather bureau which affect the Intermountain country con considerably The Tare Great Basin country has haa been made a dIstrict with tho the center of the district at Salt Lake City All the weather data datu of or this thi region will willbo willbe willbo bo be published In one publication and It ItIs itIs itis Is expected that tho the information contained con contained contained therein will be of oC great Im Importance importance to all l Interests In this region but principally the farmer the Irrigating irrigating r ting and water power engineers Tho offices of or the local ocal weather eather bu reau have hao been moved from the Dooly block to the Ule Boston building WEATHER FOR THE PAST YEAR TEAR January This month was very vory unus unusual unusual unusual ual In that tho mean temperature for forthe forthe the state was about five degrees de ees above tho Lilo normal and tho the highest ever re recorded recorded corded The precipitation was also als unusual un unusual unusual usual being ISS U inches which was inches above aboe the normal The Tho highest ghost hi local ocal monthly mean temperature was degrees at St George and the low lowest lowest est was 10 2 degrees at Fort Duchesne I The greatest monthly month amount of or pre precipitation precipitation was 1838 Inches at Scofield and the tho least was inch at Green River February The temperature of or Feb February February February exhibited no such marked varia variation variation variation tion from the normal as did that of or January Tho The mean for tor tho the state was as 2 5 degrees which was ivas as 09 degrees be below below below low the normal The highest local mean temperature was degrees degroes at atthe tho the experiment farm and the lowest was degrees at Fort Duchesne Tho rho average was inches which was OV inch above tho the normal Tho The greatest monthly amount was 1035 inches incises at Park City and the lowest was inch at Green River The greatest amount In any 24 21 con consecutive consecutive consecutive hours was Inches incises at Park City on the tho ith March The mean monthly tempera ture turo for this month was WM degrees which was 12 degrees below tho the nor normal mal nuL Tho highest local mean menn monthly temperature was wag CO 3 degrees at St George and the tho lowest was 12 de degrees degrees degrees grees at Scofield The precipitation was teas mostly In tho the form Corm of ot moist snow and averaged for the state Inches which was inch below tho the normal Tho The greatest amount In 21 hours was Inches Incites at Huntsville on the tho Tho The greatest monthly amount was Inches at Honofer Henefer and tho the least was wal nothing at Green Groen River April Generally cold weather pre pro prevailed prevailed during this month accompanied 1 by b considerable cloudiness Tho The tem temperature temperature I for the tho state as a whole was I 44 7 degrees which was 35 36 degrees be below below I Ilow low normal The highest monthly mean at any station was degrees at St George Gcorge and the lowest was degrees as Scofield Tho The average pro pre precipitation for the state was Inches which was 0 22 Inch below tho the normal The Time greatest amount at any an station was Inches at Scofield and tho the least was nothing at Kelton and Loa LoaThe LoaThe LoaThe The greatest amount In 24 hours was wag Inches at Scofield on tho the May Ma May lIIa was a cool dry and windy wind month Tine The temperature aver averaged averaged aged 56 degrees which was 32 de degrees degrees degrees grees below tho tine normal The Time highest temperature was 92 degrees at St StGeorge StI StGeorge I George and the lowest 10 degrees at Loa The precipitation averaged 10 Inches which was 0 38 Inches below the normal The greatest local monthly amount was inches at nt Scofield and the tine least was nothing at several sta stations stations Tho The greatest amount in 24 hours was Inches at Ogden on tho the June Tills month was unusually m time the temperature averaging for forth forth th degrees which was 13 degrees above the normal Tho The high highest highest est local mean was 71 1 degrees degree at Springdale and time the lowest was decrees at Scofield Tho Time average pro pre for tho month was Inch which was waa Inch below tho the normal The rhe greatest monthly amount was as 0 79 Inch at Government creek At a num number bor ber of or stations no rain whatever was recorded fire Tho greatest amount was Ofia Inch tacit at nt Emory Emery on tho tine ith July Jul mean temperature averaged ed cd only slightly below bolow the tine normal Tho The highest temperature was 10 degrees at Lucin and the lowest was 30 degrees at tho the samo sarno place on tho the The precipitation waa well distributed and avoided ed cd much above aboyo the tho normal August Tho temperature was higher than usual in tho the greater portion of tho the state The Tho precipitation was as unusually heavy being more than twice tho normal amount Damages by floods wore were widespread bridges were washed away aWn rends were gutted and fields it devastated t pip September This month was comparatively comparatively mph c cool and an wet wot Tho The rains which Il caused so much damage during durin the thelast thelast thelast last few days In August persisted iv iva y ya a few days in September and during the last fow days da S In September the firs first ce snow of oC tho season was observed on lyric fie tho the mountain peaks October The temperature during r this month was somewhat higher higher than h usual and averaged about 5 52 degrees 1 l The precipitation was slightly below fa normal The weather was unusually fits mild and pleasant and very CI beneficial sh to toto to all Interests Sunshine was abundant abundant and the tho proportion of at clear days da a was ryas large lar e w O November This month bids fair fall to tobe tobe tobe II Here be somewhat cooler than usual with I light precipitation General snow flur flurries I Areal ries rice occurred on the through tho the state H THI Section Director and Division Editor |
