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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, January 12, 2020

[ Saturday, January 11, 2020 | Index | Today | Monday, January 13, 2020 ]

DAY 104 OF WATER YEAR 2020, FORECAST LAST UPDATED 01/13/2020 04:00:12 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): 23.69°F
MINIMUM TEMPERATURE (Tmin): 14.47°F
AVERAGE TEMPERATURE (Tavg): 19.08°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.144
Maximum Percentile on this day is based on 88 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: -8
18-DAY CUMULATIVE DD32: 584

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: 1.44 in
DAY 1-3 (P3): 4.24 in
DAY 4-15 (P15): 10.39 in
18-DAY TOTAL (P18): 14.63 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: 133 in
SWE DAY: 12
CALCULATED SNOW DENSITY: 365.84 kg/m3
CALCULATED SWE: 48.48 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: -181

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
2020-01-13 04:00:12OBSERVATION2020104-18123.6899414.4699819.07996132.52926251.444.2410.3914.63TT-8.31006583.6899412365.83549652017 48.483908550140.1438251860402288 11451215WETL
2020-01-13 00:00:12FORECAST2020105-18114.8414.8414.84126.197907313880.02952.829510.3913.2195TT-17.16574.8412362.0733485353345.6928988792860.0200314854613128811451215WETL
2020-01-12 12:00:11FORECAST2020104-18127.0315.5221.275125.812535718940.71253.512510.3913.9025TT-4.97587.0312361.8423980538245.5243096297720.244875457157638811451215WETL
2020-01-12 08:00:10FORECAST2020104-18128.316.3822.34127.224889249121.19793.997910.3914.3879TT-3.7588.312362.6877087628546.1429035793690.291472436505438821451217.5WETL
2020-01-12 04:00:12FORECAST2020104-18128.9515.6222.285129.439006834941.74124.541210.3914.9312TT-3.05588.9512364.0067967867847.116678257250.316819122659668821451217.5WETL
2020-01-12 00:00:17FORECAST2020104-18126.6815.3821.03117.992841839161.89343.493410.3913.8834TT-5.32584.6812357.1069444979342.1360632218120.232775604538518811451215WETL
2020-01-11 20:00:11FORECAST2020104-18128.8216.1322.475115.881121623492.00724.087210.3914.4772TT-3.18590.8212355.8119160756241.2318839218460.311675286890078821451217.5WETL
2020-01-11 16:00:10FORECAST2020104-18127.7717.0722.42116.075219798991.99964.079610.3914.4696TT-4.23589.7712355.9312383524241.3147967250820.271531969259168821451217.5WETL
2020-01-11 12:00:11FORECAST2020104-18127.5716.7322.15118.084834984052.00914.089110.3914.4791TT-4.43589.5712357.1632022535342.1755578004830.264187658170088821451217.5WETL
2020-01-11 08:00:11FORECAST2020104-18127.6116.321.955119.638333064352.00494.504910.3914.8949TT-4.39589.6112358.1112503280642.8438330408390.265648397672578821451217.5WETL
2020-01-11 04:00:12FORECAST2020104-18128.6714.7921.73121.397681699142.00685.116810.3915.5068TT-3.33590.6712359.1804145412343.6036696370430.305785443005628821451217.5WETL
2020-01-11 00:00:12FORECAST2020104-18126.1314.8420.485120.886725090971.984.0210.3914.41TT-5.87590.1312358.870396020943.3826669070670.214449894038918811451215WETL
2020-01-10 20:00:11FORECAST2020104-18129.6514.4622.055118.005909634582.19855.558510.3915.9485TT-2.35601.6512357.1149368166342.1416729631410.345107452211678821551220WETL
2020-01-10 16:00:11FORECAST2020104-18129.0613.5721.315119.113675790762.16075.580710.3915.9707TT-2.94598.0612357.7914877573142.6178592734170.321199461842268821451217.5WETL
2020-01-10 12:00:10FORECAST2020104-18125.9914.3920.19122.671703155252.01845.518410.3915.9084TT-6.01595.9912359.9516660173544.1558839239170.209922490489298811451215WETL
2020-01-10 08:00:11FORECAST2020104-18128.2314.7121.47123.278839401422.05885.838810.3916.2288TT-3.77596.2312360.3183295520144.419625482230.288800083967418821451217.5WETL
2020-01-10 04:00:11FORECAST2020104-18126.1614.6320.395125.408818475822.13166.131610.3916.5216TT-5.84593.1612361.600210568845.3478551680420.215427372737168811451215WETL
2020-01-10 00:00:12FORECAST2020104-18128.7413.4421.09126.066954780781.99525.845210.1616.0052TT-3.26597.7412361.9948949611145.6355940539340.308527917619268821451217.5WETL
2020-01-09 20:00:10FORECAST2020104-18128.2814.2421.26127.700680654332.12855.828510.2316.0585TT-3.72597.2812362.9717935145146.3517450901270.290707732279848821451217.5WETL
2020-01-09 16:00:11FORECAST2020104-18129.4713.9921.73126.717727109392.06995.619910.2315.8499TT-2.53603.4712362.3845149658545.920542076110.3377421948958821551220WETL
2020-01-09 12:00:11FORECAST2020104-18126.9314.6820.805126.635834415631.79345.303410.2315.5334TT-5.07600.9312362.3355208968345.8846610271920.241384253432338811551217.5WETL
2020-01-09 08:00:11FORECAST2020104-18123.8917.5520.72124.791275178051.78524.765210.2415.0052TT-8.11593.8912361.2292693309445.0782611514450.148945985812948811451215WETL
2020-01-09 04:00:12FORECAST2020104-18125.3715.8620.615126.234197332251.73594.825910.2615.0859TT-6.63590.3712362.0950852434345.7087824436570.190557179376848811451215WETL
2020-01-09 00:00:12FORECAST2020104-18125.3915.8720.63125.700917040981.74094.970910.0114.9809TT-6.61581.3912361.7754635347945.4755075292490.191164259024148811451215WETL
2020-01-08 20:00:11FORECAST2020104-18125.8715.6320.75125.735902575422.07775.477710.2515.7277TT-6.13592.8712361.79644539845.4908026106960.206086860846618811451215WETL
2020-01-08 16:00:11FORECAST2020104-18124.916.4220.66128.455439517652.20595.845910.2516.0959TT-7.1586.912363.4217400143646.6834993438150.17663255240498811451215WETL
2020-01-08 12:00:11FORECAST2020104-18124.9316.4320.68129.715791285222.20595.895910.2716.1659TT-7.07588.9312364.1711735231747.2387519368240.177501700124868811451215WETL
2020-01-08 08:00:11FORECAST2020104-18125.459.517.475135.632260183422.15735.967310.316.2673TT-6.55593.4512367.6573503809449.8661974052130.192992585410078811451215WETL
2020-01-08 04:00:12FORECAST2020104-18126.1716.6221.395138.295863480382.12346.043410.3916.4334TT-5.83591.1712369.2098115354251.0601896917210.21575377135598811451215WETL
2020-01-08 00:00:12FORECAST2020104-18126.1916.6221.405133.275246608062.12346.01348.6814.6934TT-5.81592.1912366.2747959329248.8153637542790.216407426250088811451215WETL
2020-01-07 20:00:11FORECAST2020104-18125.6616.5521.105126.183362817541.4835.1639.5614.723TT-6.34596.6612362.0646362255345.6865333562470.199475185690568811451215WETL
2020-01-07 16:00:10FORECAST2020104-18125.8615.6720.765127.870299901131.52345.37349.5414.9134TT-6.14598.8612363.0729865117146.4262516712510.205769108133528811451215WETL
2020-01-07 12:00:11FORECAST2020104-18125.915.6920.795130.13445570511.52345.23349.6414.8734TT-6.1602.912364.4195904321547.4235450491620.207041859600588811551217.5WETL
2020-01-07 08:00:11FORECAST2020104-18121.5516.6219.085128.252008431860.64384.82389.9614.7838TT-10.45592.5512363.3005502825546.5940252381370.0964237441568738811451215WETL
2020-01-07 04:00:12FORECAST2020104-18121.6916.3719.03126.67808446490.66334.233310.2214.4533TT-10.31585.6912362.3607991719945.9031719242780.0991230298906048811451215WETL
2020-01-07 00:00:13FORECAST2020104-18121.7316.3819.055109.256929745770.66334.28337.311.5833TT-10.27591.7312351.7042157182738.4261227880230.0999042768558378811451215WETL
2020-01-06 20:00:11FORECAST2020104-18125.9718.3822.175107.331884746890.73844.33849.8514.1884TT-6.03597.9712350.4974654240837.6195535629740.209280326716398811451215WETL
2020-01-06 16:00:10FORECAST2020104-18122.4916.319.395104.389766335530.64873.89879.8613.7587TT-9.51598.4912348.6417056497636.3946261875990.115608406152438811451215WETL
2020-01-06 12:00:11FORECAST2020104-18122.516.3319.415108.080665768940.64873.89879.9713.8687TT-9.5601.512350.9675540703437.9328069072190.115826077841348811551217.5WETL
2020-01-06 08:00:10FORECAST2020104-18121.9216.1819.05119.928841278691.25325.283210.6715.9532TT-10.08604.9212358.2881229914542.969079434280.103676448264468811551217.5WETL
2020-01-06 04:00:11FORECAST2020104-18119.7312.2916.01125.036617669661.16245.382411.2316.6124TT-12.27605.7312361.3767094683945.1853214565180.066087078918811551217.5WETL
2020-01-06 00:00:13FORECAST2020104-18119.7412.3216.03124.448956263811.16245.382410.6716.0524TT-12.26608.7412361.0233969983544.9289849432610.0662307951492648811551217.5WETL
2020-01-05 20:00:11FORECAST2020104-18125.7918.9822.385126.020015930181.40735.937311.417.3373TT-6.21615.7912361.9667675736245.6150578158240.203552975140818811551217.5WETL
2020-01-05 16:00:11FORECAST2020104-18124.2621.9523.105117.912332160921.03694.926911.0315.9569TT-7.74612.2612357.0576985874442.1015059564570.158733087528548811551217.5WETL
2020-01-05 12:00:11FORECAST2020104-18124.0221.9422.98117.843050980430.67974.569711.2715.8397TT-7.98615.0212357.015312827242.071773710290.152337850090488811551217.5WETL
2020-01-05 08:00:11FORECAST2020104-18114.8814.3714.625113.803269477620.06134.061311.615.6613TT-17.12610.8812354.5308594630540.3467709376060.0202499275517038811551217.5WETL
2020-01-05 04:00:12FORECAST2020104-18122.7821.0721.925115.902142820590.09543.975411.6915.6654TT-9.22618.7812355.8248417431141.2408616268250.122039017649438811551217.5WETL