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7/28/25, 12:04 PM Precipitation Frequency Data Server <br />PDS-based depth-duration-frequency ( DDF) curves <br />Latitude: 38.0380 °, Longitude: -120.9377 ° <br />.c 15 -+---+---+--+---+---+---+--+---+---+----+-+-+----+-+---+-,,,_,,-,.,,,_,., <br />_µ C.QJ -c c:: <br />,_g 10 +---t--i---t--+---+-i---t--+---t---+--t-t--t-7"';1o":>'Y':h4 "Y"-I 2 'c. <br />� � 5�---t--i---t--+---+-i---l--+--:;;,,'l!iit!�S!-S-S-!"'='::r"!�jlC---'1=--:...i"'-t-1 <br />0 <br />c:: i:: c:: C: <br />-� .E .E .E I I I 0 u"l 0 .-I .-I �, <br />20 <br />i:: <br />.c 15 <br />10 '.O <br />'c. <br />5 � <br />0 <br />1 2 <br />NOAA Atlas 14, \/olume 6, \/ersi1m 2 <br />c:: ... ... ... ... ...>, >, >, >, >, >, >, >,>, .E .c .c .c .c .c n:, n:, n:, n:, n:, n:, n:, n:, n:, N m ,l:, I I -c -c -c 1:) -c -c -c -c -c I N � N �'i sat I I I I I I 0 Duratio� r--. 0 0 0 u"lO \0 .-I N rn '<t' \0 <br />5 10 25 50 100 200 500 1000 <br />Average recurrence interval (years) <br />Created (GMT}: Thu Aug 28 19:04:16 2025 <br />Back to TOP- <br />Maps & aerials <br />Small scale terrain <br />https://hdsc. nws.noaa.gov/pfds/pfds _printpage.html?lat=38.0380&1on =-120.9377 &data =depth&units=english&series=pds <br />Av@ra:ge recurrence <br />inle,va1 <br />(years} <br />1 <br />2 <br />5 <br />10 <br />25 <br />50 <br />100 <br />200 <br />500 <br />1000 <br />Duration <br />5-mln <br />10-mln <br />15-mn <br />30-imln <br />•60-mln <br />2-hr <br />3-tlr <br />6-hr <br />12�hr <br />24-!hr <br />2-<lay <br />3-day <br />4-day <br />7�day <br />10-d'ay <br />20-day <br />30-day <br />45-day <br />60-d,ay <br />2/4