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Show tettliMit Batlol £ total Jail find Batlol Snov to Vater Batlol »r*.^abor*^g ash. Kate of Palli 19^7-19^* In Vator la Snow K l y w T Ml Begin Old Depth O U Surface lav Depth lav Vt. Bate of Pall Vlad Teres Vlad Mr. *aap. Sattl*»ftt 1800 Stora #1 Stem #8 Ind ILL or 1300 6 Dee 1700 9 Dec Hate of Deptfc let per Dura- Intsr- Surf. Depth Tall In Water nar hr. Content In snov old Ofln tion Caad. % Oont. Zk hrs Daap 71" O.67 5.22 .07 9" 39 Snow 119 hre Coat. 0 Pwd 36' 0.81 2.32 .06 l»9" Settle asnt A Batio 19" Whra Stara #3 0900 1200 22 Sac 22 Dae 7" 1.00 Stem tk Caat. 3 <Uy* Vlad 19" 0500 1700 23 'aa 2k Jan Saov Cr.A 0900 1500 Vlad 25 Jan 25 Jaa Pack kSkrt O.U5 7 hrs 4 days Vlad Cr.A Vlad ?aek 0.U1 • 05 53" .20 (7") 59" Ik* 5" & .5! 2" .28 C O K P U I I O I 0HAa I TW VIRATUBI After fllr. Befors Ilgh Lev flake Above 0a-p 320 Pwd. C.MP. Below Pwd. 320 M Pel 9 Dae U 28 30 28 15 22 31 28 18 22 27 19 15 11 Pwd. fcbove 25 A 32° Pal 22 Belov V Ik 32° 12 AT. \riio OOMPAUSOI sfovMovan IS tocaBr*, Actios favorable tbfavonfels Baro- Humiabr 8 Data Tlae tioa Typa Slsa to A rat dity Avalaaehs 1 Avalanche* i , low br-tloal Vo *o Hew 6epth Old fiepth' ieve data data Kt. of Vlad Poree fall H 11 20 16 10 Ik 16 Belov V A 12 320 SV 7.0 1 £ l>t Belov 320 V A 5-9 SV 6 85 22 V A 9.7 42 H 1.00 ( 'I Pirst Phase 1.36 &dA>d 0.99 £ .07 (12") Damp Sear Oraa 32° littn MAP Pel 3 18 'I Belov 320 KB MAP Pwd. 3rd Iha* 6 Dee larly Batlr Tart- lo •o Old Depth leap. A.M. Plsstf V able data data lav Depth Settlesttat lata of 7 Dee larly tab fall A.M. Vlad Pee. find Sir. Plgatf vt. Batlr P. 0985 torfaea V Batlr !»pe 8 Dee Stoa- S U M Dry 1115 V Kstlr Ratlr T Plgstf Bowl Plgatf Baldy 9 Dae IS Plcatf Mid •0 Old Depth Vev Depth t2Dao All Area Soft day Teet Hvy. data Old Surf. Temp. Slab Vt. Plota fPPa Kt of fslj Vlad Poo. find Dir. Sattlaaaat Old Depth lav Depth !3 J « 1100 I Batlr Slab Mid High Old Surf, rang* Kt. of All m p Sup. *nr. lav Vt. A low Baldy law Typa Vlad Toe. 1100 Station riad Dir. !>* Jaa DH Bexall Slab iattlaaaat V Batlr 25 Jar1130 Plgstf !6A 2 ' W Tar Mas Jaa Dry » Jai 1575 Batlr Paea Stara #5 1600 2100 2 Fab I Tab 2300 0900 10 2 Tab 5 Peb 15 5 7 day* Vlad Or. Vind Pack 10" 0.66 0.72 .07 66- 8* 2" .20 O.KAP Below 29 22 20 Balow 9 320 V 1/ Settlement ft. (lad Dir. typa U.5 15 1.00 H»y. Low Old Depth Old Surf. Vlad Pee. lev Depth 3 Tab A.K. Area ftrly rat Vt. k Pab 1500 Batlr Paea •ev Type k Tab 1500 Stoaa Crahr St. of Pall Saall Mad. Saall Mad. Ned. Mad. Had. Mad. Had. 1/ Had. Nad. Ur«a Had. Larte Had. Saall Saall V v Saall Saall Had. Saall (Art) Saall A Had. Slab Large (Art axr) Sloughs Dry Dry falii*11 art. a*p. 6/ . 'lad Dir. Settleaea Jj A prolonged atom dapoeitlng £r«at quant1 tie* of anov. Unfavorable factor* prerallad. This atora notable for fact that 7" daap aaow produced large average cycle. Vlad force. Snow Vt. A Type were critical farorabla faotora. Stora paralyiad tha area k day* by knocking out power A telephone. Superficial eoaparleoa of arerage faetora doaa not ladlcate a critical sltuatloa. Show* that foraeaatar Bust eonaldar ooablaatlona of faetora. Vote especially aaow wt. A typa, alao wind foree. Hasard waa correctly dlagoaosad as aodarata though aargln waa vary narrow. Lifts olosad aad day rlsltere aant out of area at 1530. g/ This atom had 3 dlatlnot phases. Breaks la snowfall occurred on 7, 8, A 9 of several hours duration. There waa llttla wind lit jhaaa, eritloal wind 2nd phase, «uch wind 3rd phaaa. Tha braaka peraftted snow adjustment* and observation, lit phaaa correctly diagnosed aa dry slide cycle of moderate intensity. 2nd phaaa oorrectly diagnosed aa alsb §11da cycle of aodarata Intensity. 3rd phaaa Included dry snow plna delayed alab A produced only large alidaa to occur. y The atora ahowa an alaoet equal division of average factors. Should be eoapared with Stora ik, especially the Vlad Porce, Snow Typa, Snow Vt. coablaatloa. Alao Stora #3. alallar la aany way* bat with different reeulta. Insufficient snowfall to produce aajor average oycla. Marked preponderance favorable faetora. Stora analysed because aaov waa extremely unttable. Skiing in teat plota produced alidaa unumally extern IT*, though (hallow. s alab raaalnlas f -63- |
