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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, April 28, 2023

[ Thursday, April 27, 2023 | Index | Today | Saturday, April 29, 2023 ]

DAY 210 OF WATER YEAR 2023, FORECAST LAST UPDATED 04/29/2023 04:00:09 AM
According to the database, there were no geologic events (floods, debris flows, outburst floods, etc) on this day.

THIS DAY'S DEBRIS FLOW HAZARD CLASS:
L
LOW

MODEL USED FOR HAZARD CLASS DETERMINATION:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 69.26°F
MINIMUM TEMPERATURE (Tmin): 47.47°F
AVERAGE TEMPERATURE (Tavg): 58.36°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.987
Maximum Percentile on this day is based on 16 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 37
18-DAY CUMULATIVE DD32: 107

DD32 is calculated as: DD32 = TMAX - 32
18-day Cumulative DD32 is the sum of DD32 for the last 18 days.
Precipitation at Paradise DAY 1: 0.00 in
DAY 1-3 (P3): 0.00 in
DAY 4-15 (P15): 4.56 in
18-DAY TOTAL (P18): 4.56 in

PRECIP THRESHOLD A (PA) EXCEEDED: True
P3 > (-0.67 * P15 + 2.5)

PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 156 in
SWE DAY: 117
CALCULATED SNOW DENSITY: 451.07 kg/m3
CALCULATED SWE: 70.21 in

SWE Day, Calculated Snow Density, and Calculated SWE based on work by Sturm and others (2010)
If Tavg > 32°F, snow melt is factored in at: M (in) = a(Tavg - T32), where a is between 0.0766 - 0.1312 in * °F-1 * day-1 (Currently 0.1039) and T32 = 32°F. This method is from Westerstrom (1982) in Kustas and others (1994) and converted to US customary units.
Seasonal Variables DAYS SINCE JULY 11: -75

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 1
D2: 1
D3: 1
D4: 1
D5: 1
HSdry: 7.0

These are primarly for the Dry-weather debris flow hazard model, but calculated every day.
HSdry = (([D0 + D1 + D2] * D3) * D4) / D5
See model (right) to figure out how D0 - D5 are calculated.
Notes

UPDATE HISTORY AND MODEL OUTPUT NOTES:
You can also use this to see how the forecast changes over time. Note that "FORECAST" is the forecasted model whereas "OBSERVED" is the actual observed values for that day.
Show/Hide: Observation | Forecast | Notes | Status

D TYPE WY DOFWY DS0SP T_MAX T_MIN T_AVG SP P1 P3 P15 P18 PA PB DD32 DD32_18 SWE_DAY SNOW_P SWE T_MAX_PERC T_MAX_PERC_YRS D0 D1 D2 D3 D4 D5 HS_DRY FCST_TYPE HAZ_CLASS
2023-04-29 04:00:09OBSERVATION2023210-7569.2647.4699258.36496155.64273333333004.564.56TF37.26107.26117451.06534624166 70.2050434009990.9868822026738116 5111117WETL
2023-04-29 00:00:02FORECAST2023210-7460.15241.3650.756154.6730368004.564.56TF28.15298.152118451.2615287126169.797991036990.92140390236188165111123.5WETL
2023-04-28 12:00:02FORECAST2023210-7458.06439.39848.731156.9383232004.564.56TF26.06496.064118452.1028384781370.9522613847170.89061000610839165111123.5WETL
2023-04-28 08:00:02FORECAST2023210-7459.77440.9150.342156.8364792004.564.56TF27.77497.774118452.0651182415970.9003015141430.91637770062641165111123.5WETL
2023-04-28 04:00:10FORECAST2023210-7458.5540.3749.46157.23602951667004.564.56TF26.5596.55118452.2130448345671.1041836654290.89845179957592165111123.5WETL
2023-04-28 00:00:02FORECAST2023210-7559.91840.5550.234158.1442944004.564.56TF27.91890.918117451.99537070871.4804889726840.91832009787178165111123.5WETL
2023-04-27 20:00:03FORECAST2023210-7559.07239.61449.343161.8025312004.564.56TF27.07289.072117453.3448258409373.3523403274850.90641101761497165111123.5WETL
2023-04-27 16:00:02FORECAST2023210-7558.24439.59648.92161.8500584004.564.56TF26.24488.244117453.3622753564573.3767107427990.89356344707683165111123.5WETL
2023-04-27 12:00:04FORECAST2023210-7559.91841.1850.549160.0598672004.564.56TF27.91889.918117452.7035534456472.4596706454760.91832009787178165111123.5WETL
2023-04-27 08:00:02FORECAST2023210-7560.02640.80250.414160.0637048004.564.56TF28.02690.026117452.7049687416872.4616344781620.91975450418297165111123.5WETL
2023-04-27 04:00:10FORECAST2023210-7559.79241.59450.693159.91385381667004.564.56TF27.79288.792117452.649693872772.3849569761170.91662237479707165111123.5WETL
2023-04-27 00:00:04FORECAST2023210-7559.84641.75650.801161.6370032004.564.56TF27.84687.846117453.2840361232573.2674731973630.91735317937574165111123.5WETL
2023-04-26 20:00:03FORECAST2023210-7559.82841.52250.675164.0077152004.564.56TF27.82885.828117454.1522402216974.4844712717210.91711011361369165111123.5WETL
2023-04-26 16:00:03FORECAST2023210-7560.04441.5450.792164.0406792004.564.56TF28.04485.044117454.1642755107674.5014162231610.91999171588187165111123.5WETL
2023-04-26 12:00:06FORECAST2023210-7559.0941.12650.108163.0867896004.564.56TF27.0984.09117453.8155989282974.0113290996160.90667704103258165111123.5WETL
2023-04-26 08:00:04FORECAST2023210-7558.42440.26249.343163.1578344004.564.56TF26.42483.424117453.8415971590274.0478121531030.89645905919748165111123.5WETL
2023-04-26 04:00:12FORECAST2023210-7556.19239.247.696163.11637056471004.564.56TF24.19279.192117453.8264243967874.026519213960.85638344639569165111123.5WETL
2023-04-26 00:00:03FORECAST2023210-7556.98441.3649.172163.2354328004.514.51TF24.98485.984117453.8699882629774.0876639690360.87165460153726165111123.5WETL
2023-04-25 20:00:03FORECAST2023210-7557.3841.52249.451164.8947128004.514.51TF25.3885.38117454.4757356230474.940645900130.87885290245657165111123.5WETL
2023-04-25 16:00:03FORECAST2023210-7560.31441.93651.125164.7162152004.514.51TF28.31489.314117454.4106946269874.8488097653580.92348676586382165111123.5WETL
2023-04-25 12:00:02FORECAST2023210-7559.16241.84650.504163.9672928004.514.51TF27.16289.162117454.137480465274.4636932308910.90773556763352165111123.5WETL
2023-04-25 08:00:02FORECAST2023210-7558.71242.1750.441164.1318176004.514.51TF26.71286.712117454.1975452634274.5482686535430.90097279179033165111123.5WETL
2023-04-25 04:00:14FORECAST2023210-7558.85642.63850.747163.89317006667004.514.51TF26.85685.856117454.1104114970374.4255949005270.90317509742257165111123.5WETL
2023-04-25 00:00:04FORECAST2023210-7558.98241.41450.198166.60116317944004.414.41TF26.98287.982117455.0960461514375.8195306471940.90507252532718165111123.5WETL
2023-04-24 20:00:04FORECAST2023210-7557.9242.96250.441162.7990288004.484.48TF25.9288.92117453.7102473515973.8635876254470.88820535281982165111123.5WETL
2023-04-24 16:00:03FORECAST2023210-7558.22642.18850.207162.9241936004.484.48TF26.22688.226117453.7560806687273.9278435340470.89327071190376165111123.5WETL
2023-04-24 12:00:04FORECAST2023210-7559.14442.47650.81164.63678636283004.484.48TF27.14489.144117454.3817428473574.8079499243310.90747177005193165111123.5WETL
2023-04-24 08:00:05FORECAST2023210-7560.27842.49451.386164.51575723149004.474.47TF28.27888.278117454.3376165445974.7456970245850.92302756226498165111123.5WETL
2023-04-24 04:00:13FORECAST2023210-7561.14243.05252.097164.99010481083004.474.47TF29.14289.142117454.5104824969874.9897321447980.93348429304763165111123.5WETL
2023-04-24 00:00:04FORECAST2023210-7558.17241.55849.865170.92399256536004.574.57TF26.17278.172117456.655454846778.053373569150.89238903254929165111123.5WETL
2023-04-23 20:00:04FORECAST2023210-7558.58641.8150.198170.58184389346004.494.49TF26.58680.586117456.532651843877.8761815490860.89901600693334165111123.5WETL
2023-04-23 16:00:06FORECAST2023210-7555.38240.8248.101171.09954683697004.494.49TF23.38275.382117456.7184228581378.1443151831210.83954708092193164111123WETL
2023-04-23 12:00:03FORECAST2023210-7554.17640.80247.489171.44364630015004.474.47TF22.17673.176117456.8417634321278.3226177049930.81219078782962164111123WETL
2023-04-23 08:00:05FORECAST2023210-7557.05640.49648.776172.13168889814004.474.47TF25.05676.056117457.0880654991378.679340689550.87298493684519165111123.5WETL
2023-04-23 04:00:08FORECAST2023210-7558.5543.01650.783171.1423720586004.554.55TF26.5581.55117456.7337791990378.1665023714120.89845179957592165111123.5WETL
2023-04-23 00:00:06FORECAST2023210-7558.65843.10650.882172.01192185055004.424.42TF26.65881.658117457.0452228235778.6172271504930.90013758167832165111123.5WETL
2023-04-22 20:00:06FORECAST2023210-7557.75843.82650.792172.47798224551004.344.34TF25.75877.758117457.2118671239378.8589803002380.88545534219315165111123.5WETL
2023-04-22 16:00:04FORECAST2023210-7557.81242.0849.946173.27315008647004.294.29TF25.81273.812117457.4957318871979.271726615210.88637729520888165111123.5WETL
2023-04-22 12:00:04FORECAST2023210-7559.68440.4650.072172.99278647647004.164.16TF27.68474.684117457.3957110892779.1261585837190.91514625996103165111123.5WETL
2023-04-22 08:00:07FORECAST2023210-7556.76839.75848.263172.95661895511004.164.16TF24.76869.768117457.3828029990279.1073831749230.86760585202762165111123.5WETL
2023-04-22 04:00:12FORECAST2023210-7558.11839.3848.749172.07299944742004.184.18TF26.11875.118117457.0670729297478.6489021876720.89150213413112165111123.5WETL
2023-04-22 00:00:06FORECAST2023210-7551.8936.84244.366171.70595921134003.883.88TF19.8958.89117456.9357156772278.4585853582790.75301025744936164111123DRYL
2023-04-21 20:00:04FORECAST2023210-7550.19838.67844.438170.74229123717003.883.88TF18.19855.198117456.5902524252177.9592658556350.70350463520272164111123DRYL
2023-04-21 16:00:05FORECAST2023210-7551.7136.48244.096169.83280676768003.663.66FF19.7169.71117456.2634367708277.4885000922580.74796176971745164111123DRYL
2023-04-21 12:00:06FORECAST2023210-7547.01233.76440.388170.8044505324003.513.51FF15.01260.012117456.6125612984277.991457638770.5998872495909163111122.5DRYL
2023-04-21 08:00:06FORECAST2023210-7545.87833.1739.524169.69908276344003.413.41FF13.87856.878117456.2153204704377.4193214264620.56075358377844163111122.5DRYL
2023-04-21 04:00:15FORECAST2023210-7549.80238.33644.069168.65023035026003.33.3FF17.80258.802117455.8373571829776.8770752911620.6912945437912163111122.5DRYL
2023-04-21 00:00:04FORECAST2023210-7556.80442.78249.793171.52796459724003.273.27FF24.80471.804117456.8719704246778.3663191684730.86828666910311165111123.5DRYL
2023-04-20 20:00:05FORECAST2023210-7557.4741.93649.703166.91615537866003.23.2FF25.4775.47117455.2102550711575.9819456654160.88044860774369165111123.5DRYL
2023-04-20 16:00:06FORECAST2023210-7556.89442.09849.496165.89858578776003.193.19FF24.89479.894117454.8409783221975.4574750619730.86997816077153165111123.5DRYL
2023-04-20 12:00:05FORECAST2023210-7556.7541.57649.163169.18013891787003.283.28FF24.7573.75117456.0284402956577.1509548797190.86726453827168165111123.5DRYL
2023-04-20 08:00:05FORECAST2023210-755943.80851.404168.89445368795003.343.34FF2787117455.9254551878477.0032806763810.9053413421044165111123.5DRYL
2023-04-20 04:00:12FORECAST2023210-7558.8242.92650.873169.88585299001003.393.39FF26.8280.82117456.2825192281777.5159449835110.90262791110251165111123.5DRYL
2023-04-20 00:00:06FORECAST2023210-7550.82836.15843.493173.02208351579004.114.11TF18.82869.828117457.4061662538479.141367898210.72245994052579164111123WETL
2023-04-19 20:00:07FORECAST2023210-7549.8236.87843.349171.40344064917004.064.06TF17.8258.82117456.8273574974678.3017808577310.69185429824737163111122.5WETL
2023-04-19 16:00:08FORECAST2023210-7558.98241.39650.189167.5422115248004.074.07TF26.98280.982117455.4369775095276.3049184221150.90507252532718165111123.5WETL
2023-04-19 12:00:06FORECAST2023210-7555.18434.30444.744173.28761824421004.264.26TF23.18459.184117457.5008915257779.2792398371020.83524339091857164111123WETL
2023-04-19 08:00:07FORECAST2023210-7559.55834.01646.787173.87509716341004.214.21TF27.55858.558117457.7102383455679.584412165020.9133995476261165111123.5WETL
2023-04-19 04:00:11FORECAST2023210-7565.78635.02450.405173.698252514540.129921330.129921334.284.40992133TF33.78672.786117457.6472530052679.4925281150930.97219490608012165112127WETL
2023-04-19 00:00:08FORECAST2023210-7540.83832.30636.572180.33947700796005.275.27TF8.83852.838117459.9932929857782.9549498842230.38501237280405162111122WETL
2023-04-18 20:00:05FORECAST2023210-7543.91632.57638.246175.3221102044005.915.91TF11.91661.916117458.2245479063980.3368946864050.49184676068289162111122WETL
2023-04-18 16:00:04FORECAST2023210-7543.39430.93837.166175.344618915820.007874020.007874025.675.67787402TF11.39464.394117458.232533220880.3486089124330.47346963235068162111122WETL
2023-04-18 12:00:10FORECAST2023210-7539.09238.44438.768178.9408363865100.224.785TF7.09230.092117459.5025016393482.2237619650380.32758804221872162112124WETL
2023-04-18 08:00:04FORECAST2023210-7531.56826.8729.219178.859734412700.244.945.18TF-0.43228.568117459.4739889545282.1813956339510.13317746922292161112123WETL
2023-04-18 04:00:15FORECAST2023210-7539.09238.44438.768178.6530453352800.194.724.91TF7.09230.092117459.4012975679982.0734408415020.32758804221872162112124WETL