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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, January 8, 2020

[ Tuesday, January 7, 2020 | Index | Today | Thursday, January 9, 2020 ]

DAY 100 OF WATER YEAR 2020, FORECAST LAST UPDATED 01/09/2020 04:00:11 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): 26.90°F
MINIMUM TEMPERATURE (Tmin): 18.55°F
AVERAGE TEMPERATURE (Tavg): 22.73°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.196
Maximum Percentile on this day is based on 87 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: -5
18-DAY CUMULATIVE DD32: 595

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: 0.28 in
DAY 1-3 (P3): 5.42 in
DAY 4-15 (P15): 5.14 in
18-DAY TOTAL (P18): 10.56 in

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

PRECIP THRESHOLD B (PB) EXCEEDED: True
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 104 in
SWE DAY: 8
CALCULATED SNOW DENSITY: 344.53 kg/m3
CALCULATED SWE: 35.81 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: -185

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 1
D1: 1
D2: 4
D3: 5
D4: 1
D5: 2
HSdry: 15.0

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
2020-01-09 04:00:11OBSERVATION2020100-18526.9000618.5500422.72505103.938440416670.280000000000035.425.1410.56TT-5.09994594.900068344.53375431413 35.810301094310.1962693932077187 11451215WETL
2020-01-09 00:00:12FORECAST2020101-18518.318.318.3102.018294549260.00315.14315.1410.2831TT-13.7586.38343.2950256441435.022373043460.032384949632548711451215WETL
2020-01-08 12:00:11FORECAST2020100-18522.2719.7321101.956423674890.21615.35615.1410.4961TT-9.73590.278343.2550108137734.9970533110590.0824995088041818711451215WETL
2020-01-08 08:00:11FORECAST2020100-18522.6421.1221.88102.381412830550.26465.40465.1410.5446TT-9.36590.648343.5297447549635.1710606173310.089185675740518711451215WETL
2020-01-08 04:00:11FORECAST2020100-18525.6320.8323.23102.447670330880.33735.47735.1410.6173TT-6.37593.638343.5725501535835.1982073528720.158350790365378711451215WETL
2020-01-08 00:00:12FORECAST2020100-18528.1921.0924.6497.829473349150.56693.77695.148.9169TT-3.81592.198340.5716670294433.3179468231320.239927233432438711451215WETL
2020-01-07 20:00:11FORECAST2020100-18529.0620.8124.93594.6105053624370.55134.66135.149.8013TT-2.94599.068338.4590799220432.021784595930.272122758752428721551220WETL
2020-01-07 16:00:10FORECAST2020100-18529.0420.4824.7694.511896317910.5324.6425.149.782TT-2.96599.048338.3940904015731.9822671866260.271359244703518721551220WETL
2020-01-07 12:00:11FORECAST2020100-18528.8519.8724.3697.6580992555490.63954.74955.149.8895TT-3.15598.858340.4596301459933.2486403533050.264159465393468721451217.5WETL
2020-01-07 08:00:11FORECAST2020100-18528.5820.2224.498.1076110776110.61995.02995.1410.1699TT-3.42596.588340.7533975320533.4305017984490.254098062144288721451217.5WETL
2020-01-07 04:00:11FORECAST2020100-18528.5921.2624.92598.3137463484340.63735.26735.1410.4073TT-3.41597.598340.8880000318833.5139763683590.254467094018638721451217.5WETL
2020-01-07 00:00:12FORECAST2020100-18528.820.7824.7979.7405470782490.51232.30235.147.4423TT-3.2600.88328.472671093326.1925904932340.262281068078238721551220WETL
2020-01-06 20:00:11FORECAST2020100-18528.932124.96578.0075108675890.60244.95245.1410.0924TT-3.07601.938327.2840615497725.5306149881320.267179069739078721551220WETL
2020-01-06 16:00:10FORECAST2020100-18528.9221.1425.0377.945941158050.62354.93355.1410.0735TT-3.08601.928327.2417374087825.5071652085230.266800669760468721551220WETL
2020-01-06 12:00:11FORECAST2020100-18529.7522.5626.15581.3495877204390.70715.06715.1410.2071TT-2.25602.758329.5715635838226.8105108219240.299097944543768721551220WETL
2020-01-06 08:00:10FORECAST2020100-18529.2721.6725.4782.3155705087760.56585.74585.1410.8858TT-2.73605.278330.2291262113727.1829989227040.280203468854078721551220WETL
2020-01-06 04:00:11FORECAST2020100-18529.5422.3225.9385.0140615378290.67536.32535.1411.4653TT-2.46602.548332.0575139428928.2295579244390.290760566159748721551220WETL
2020-01-06 00:00:13FORECAST2020100-18529.9322.3526.1482.7295178332860.67156.70154.1910.8915TT-2.07605.938330.5104144793527.3429672287560.306329372837858721551220WETL
2020-01-05 20:00:11FORECAST2020100-18528.1222.6425.3881.3452731880220.79956.36954.8911.2595TT-3.88606.128329.5686229798926.80884967050.237430093588538711551217.5WETL
2020-01-05 16:00:11FORECAST2020100-18527.8422.6625.2581.2019345138520.72255.99254.8910.8825TT-4.16604.848329.4709110433826.7536753427630.227585425562558711551217.5WETL
2020-01-05 12:00:11FORECAST2020100-18529.2822.722684.464708907890.91496.23494.8911.1249TT-2.72608.288331.6863101995728.0157876397390.280591142252348721551220WETL
2020-01-05 08:00:11FORECAST2020100-18530.2822.9326.60586.3022550538441.05776.66775.0611.7277TT-1.72616.288332.925932110728.7322587070570.320606397896138721551220WETL
2020-01-05 04:00:12FORECAST2020100-18530.5122.126.30586.3832477306531.09296.39295.3611.7529TT-1.49611.518332.9804373400428.7639316082060.330136743976398721551220WETL
2020-01-05 00:00:12FORECAST2020100-18530.5622.1126.33579.0090125030920.94456.20454.2910.4945TT-1.44609.568327.9715833697325.9127109311180.33222349117618721551220WETL
2020-01-04 20:00:10FORECAST2020100-18530.2222.7826.580.4047626189281.01356.11354.6210.7335TT-1.78603.228328.926840729226.4472845478250.318139209085188721551220WETL
2020-01-04 16:00:10FORECAST2020100-18530.3423.6827.0179.0613422647720.96965.78964.5710.3596TT-1.66606.348328.0074592212925.9327099988920.323081531855468721551220WETL
2020-01-04 12:00:11FORECAST2020100-18530.3523.6927.0276.2135729701420.96965.76964.6210.3896TT-1.65606.358326.0481587327724.849295137360.323494820143338721551220WETL
2020-01-04 08:00:11FORECAST2020100-18529.8321.5125.6775.0842682695411.11525.50524.379.8752TT-2.17605.838325.2672502279624.4224534754120.302302362042898721551220WETL
2020-01-04 04:00:11FORECAST2020100-18529.4321.1625.29574.2264857010660.83195.42194.6610.0819TT-2.57610.438324.672599224324.099306043850.286437136825348721551220WETL
2020-01-04 00:00:13FORECAST2020100-18529.4521.1825.31575.7593689403590.83195.39194.529.9119TT-2.55609.458325.7343481967924.6774286615880.287220944045688721551220WETL
2020-01-03 20:00:11FORECAST2020100-18527.1322.1224.62575.1569821916810.78224.99224.879.8622TT-4.87620.138325.3175990374824.4498889975010.203679168456528711551217.5WETL
2020-01-03 16:00:11FORECAST2020100-18528.4322.9325.6873.869755804620.76624.37625.019.3862TT-3.57613.438324.4249173384623.9651894207260.248596397071768711551217.5WETL
2020-01-03 12:00:11FORECAST2020100-18528.4722.9325.771.6520432539860.76624.02624.968.9862TT-3.53618.478322.8800880467523.1350180345770.250057285130388721551220WETL
2020-01-03 08:00:12FORECAST2020100-18527.621.8424.7277.5101880470171.12793.79795.239.0279TT-4.4614.68326.9420035076325.3413361723450.219332984564168711551217.5WETL
2020-01-03 04:00:12FORECAST2020100-18529.5222.1725.84577.912048616430.85733.75735.419.1673TT-2.48607.528327.218436232925.494258711970.289972224771238721551220WETL
2020-01-03 00:00:14FORECAST2020100-18529.5622.1725.86575.2527133525270.85733.55734.968.5173TT-2.44613.568325.3838713392324.4860191994260.291549907227948721551220WETL
2020-01-02 20:00:11FORECAST2020100-18528.5121.3524.9375.8135319265190.80443.02445.798.8144TT-3.49610.518325.7717885345824.6979098908250.251522708664268721551220WETL
2020-01-02 16:00:11FORECAST2020100-18529.9323.626.76574.2843708111050.95242.56246.028.5824TT-2.07620.938324.7127683985524.1210836948180.306329372837858721551220WETL
2020-01-02 12:00:11FORECAST2020100-18529.9523.626.77576.8156727540840.95242.56246.148.7024TT-2.05618.958326.4635930975825.0775205335060.307137608889028721551220WETL
2020-01-02 08:00:11FORECAST2020100-18529.0422.6725.85576.523260936110.68522.52526.519.0352TT-2.96619.048326.2619153296524.9666256802860.271359244703518721551220WETL
2020-01-02 04:00:13FORECAST2020100-18529.8122.1825.99576.5798419940510.58692.35696.328.6769TT-2.19613.818326.3009512328724.9880752879210.301499815756738721551220WETL
2020-01-02 00:00:14FORECAST2020100-18529.822.1725.98572.4549423009620.58692.35695.517.8669TT-2.2609.88323.4403821229223.4348542245170.301098902128068721551220WETL
2020-01-01 20:00:13FORECAST2020100-18525.0920.7722.9369.3390512220910.46492.54495.137.6749TT-6.91606.098321.2595905796722.2758352067920.143788617062818711551217.5WETL
2020-01-01 16:00:12FORECAST2020100-18527.9821.9624.9773.9964834675720.58823.03825.638.6682TT-4.02611.988324.512931591924.0128157775530.232478829441318711551217.5WETL
2020-01-01 12:00:11FORECAST2020100-18527.9924.1926.0975.2657886214720.4932.9435.698.633TT-4.01614.998325.3929217719924.4909548690140.232830579369218711551217.5WETL
2020-01-01 08:00:11FORECAST2020100-18523.7121.6622.68585.0855902557660.3363.0266.369.386TT-8.29598.718332.1058086009928.2574187521840.110769954743718711451215WETL
2020-01-01 04:00:13FORECAST2020100-18522.421.7822.0989.0866055711890.10743.69746.810.4974TT-9.6596.48334.7932840720729.8255972460120.0848044741450978711451215WETL