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<br />October 1996
<br />
<br />Extreme Storm Precipitation Reports
<br />
<br /> USBR
<br />Storm USBR Cepth Area
<br />No. Storm Name State Storm Date Region Type Lat Lana M8lClmum Precloltatlon Remarks Storm File Cur. Study
<br /> 4-6" < 12 hrs, some locations,
<br />231 Southwest CO CO SeDlember ~ 1970 3 G 3748 10740 5.00" 48 hrs, Palisade Lakes w1deaoread floodlna X
<br /> SeDlember12,1970 Many l-Z' totale over SW CO, enow an
<br />232 Gunnison CO 3,5 GLC 3833 106 55 1.45" 24 hrs, Gunnl!lOn high mtn peaks
<br />233 Cochetopa Creek CO August 24,1971 3 LC 38 26 106 46 1.70" 4 hrs Cochetopa Creek Flooding, minor damaae
<br /> Cevastatlng flash flood, 237 dead,
<br /> thousands Injured, $100 million In
<br /> 15" In 6 hrs near Nemo, SC (16NW damage, no extreme preclp. reported In
<br />234 RaDld CItv SC June 9 1972 2 LC 44 12 10331 of Ranld Cltvl CO X X
<br /> Mesa Cauntv SeDlember 19 1972 1.75" at Bonham Reservoir, 0.99" at
<br />235 CO S G 3906 10754 Cedaredae l-Z' totals mainly over W CO
<br />238 SW Colorado CO October 3-7 1972 3,5 G 37 14 108 03 2.10" Fort Lewis Manv l-Z' totals from T.S. Joanne
<br />237 SW Colorado CO ~oberl9-2O, 1972 35 G 37 19 10750 5.00" 48 hrs Duranao CO Heaw rains floodlna X
<br /> 5.31" near BroomReld, 3f hrs, many 6" est near KIoWa, S.Plalle Rlvar
<br />238 Front Ranae CO Mav 5-6 1973 2 G 39 55 105 06 1-5" totals alona F.R. Roodlng, lIash Rood In Cenver X X
<br /> LlncolnlYuma Ctv 7" (unofllelal) rain between Joes-Klrk-
<br />239 CO July 18 1973 1 LC 3848 103 31 1.50" 1 day, KarvaI5.93" 3 days Karval
<br /> 1.39" Grand Junotion - 1.38" 1 hr Heavy, severe T-storms GJT area, road
<br />240 Grand Junetlon CO Julv 18,1974 5 LC 39 07 108 32 Ithlahest observed 1 hr value) washout - minor damage
<br /> 1.51" 1 hr, Wheatrldge-l.58", storm No extreme preclp. reparts found In
<br />241 Wheatridae CO July 16,1975 2 LC 3948 105 03 total Ifrom hourlv DreclDltatlonl CO. X X
<br /> 6.00" 24 hrs, Sweetwater, CO -
<br />242 Sweetwater (NW of Eaglel CO Julv 12, 1976 4,6 LC 3938 106 55 USGS Rood analysis. No extreme DrecID. reDOrts found In CC X
<br /> 12" 24 hrs, Big Thompson Canyon Ferocious flssh flood - most rain In 3-8
<br />243 Bla ThomDSOn Canyon CO Julv 31-Auaust " 1976 2 LC 40 25 105 26 near Drake hours 145 dead X X
<br /> Flooding at Glenwoad Springs and near
<br />244 Near Dove Creek CO July24 1977 5,6 lC 39 31 107 19 1.08" Glenwoad Sorlnas Cove Creek - high river levels observed
<br />245 Fort Collins CO July25 1977 2 LC 40 3S 105 05 4.43" 1 day. Fort Collins AI!lO SW Colorado - laPlata River X
<br />246 Loaan UT Auaust 18, 1977 3,5 LC 41 40 tl1 30 4.3Z' 12 hrs Loaan, UT 2.12" at RockV Ford X
<br /> Maricopa ctv 16.15" Workman Creek, AZ lest) Millions In damage, Rash floods In AZ,
<br />247 AZ Feb. 28-March 6 1978 5 G 3349 11055 many 1-3" lotals over SW CO
<br /> T' S. Montana and North Central
<br />248 Ashland MT May 16-19 1978 2 G 4600 11400 Wvomlna No extreme oreclD. reDOrted In CO X
<br /> 2.25" Tlmpss 13SW, 2.00"ln 30 3-6" of rainfall, flash flooding, high river
<br />249 otero Cauntv CO Julv9-10 1978 1 LC 3740 103 55 minutes an<! creek levels
<br /> Est 2.4" rain -localized near Grand
<br />250 Grand Junction CO SeDlember 7, 1978 3,5 LC 39 07 108 32 Junction Flash ll00d road oweDlawav
<br /> Southwest CO and western 4.10" 1 day, 6.19" 3 days at Wolf Heavy mtn snows - 2 II In San Juan
<br />251 vallevs CO December 17-19,1978 3 G 3729 106 47 Creek Pass, 68" snow Mlns 3 deaths
<br />252 Lamar CO May 29, 1979 1 LC 3805 102 37 4.85" 1 day lamar ReDOrts of 5.50" - 2.5 hrs flooding
<br /> 16.63" 10 days Crown KIng (NW of Heavy snows, rains In western CO
<br /> Phoenix), 3-12" Central Basin, While especially In San Juan MIne, 4-9" totals
<br />253 Arizona AZ Februarv 13-22 1980 5 G 34 12 11220 Basins for 10 davs
<br />254 Crlanle Creek CO August 8 1980 2 LC 3845 105 11 5.00" 3 hrs CriDDle Creek 2" < 1 hr Lake Georae
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<br />Prepared by Colorado Climate Center, CSU
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