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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, October 30, 2022

[ Saturday, October 29, 2022 | Index | Today | Monday, October 31, 2022 ]

DAY 30 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/31/2022 04:00:05 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:
M
MEDIUM

MODEL USED FOR HAZARD CLASS DETERMINATION:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 38.63°F
MINIMUM TEMPERATURE (Tmin): 30.54°F
AVERAGE TEMPERATURE (Tavg): 34.58°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.394
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: 7
18-DAY CUMULATIVE DD32: 270

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: 1.68 in
DAY 1-3 (P3): 1.92 in
DAY 4-15 (P15): 2.57 in
18-DAY TOTAL (P18): 4.49 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: 14 in
SWE DAY: 64
CALCULATED SNOW DENSITY: 340.23 kg/m3
CALCULATED SWE: 4.60 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: 110

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 5
D2: 2
D3: 5
D4: 3
D5: 2
HSdry: 67.5

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
2022-10-31 04:00:05OBSERVATION20233011038.6299430.5400234.5849813.5301566666671.67999999999991.91999999999992.574.4899999999999TF6.62994269.6299464340.23170122614 4.60338822055620.3944821552886116 25253267.5WETM
2022-10-31 00:00:02FORECAST20233011038.8738.8738.8714.9624440.0750.3152.572.885FF6.87269.8763340.189958112865.09007319762610.404071272953971625222218DRYL
2022-10-30 12:00:02FORECAST20233011038.0231.6734.84514.8359453333331.18131.42132.573.9913TF6.02269.0263340.107140867935.04581094939290.370416408317151625242236DRYL
2022-10-30 08:00:02FORECAST20233011038.9831.0435.0114.8358906666671.1891.4292.573.999TF6.98269.9863340.107105072535.04579182581260.408484894887391625242236DRYL
2022-10-30 04:00:08FORECAST20233011039.0831.1135.09514.421445751.23311.47312.574.0431TF7.08270.0863339.835586159644.90092046972070.412507390415851625243254WETM
2022-10-30 00:00:03FORECAST20233011039.0431.1935.11516.9129445352291.34831.58832.574.1583TF7.04265.0464342.436175408435.79160404153860.410897264230461625252245WETL
2022-10-29 20:00:01FORECAST20233011039.232.0335.61516.6423706666671.23091.48092.574.0509TF7.2270.264342.260545602225.69602686448780.4173465044851625242236WETL
2022-10-29 16:00:01FORECAST20233011039.7432.2836.0116.5930613333331.19781.44782.574.0178TF7.74270.7464342.228525852985.67861891949470.439267425891641625242236WETL
2022-10-29 12:00:04FORECAST20233011041.6232.2836.9516.2076875157711.1811.4312.574.001TF9.62272.6264341.978139433895.54267482116920.516610077498361635242240WETL
2022-10-29 08:00:03FORECAST20233011039.9932.8636.42516.1795263090431.17241.43242.574.0024TF7.99270.9964341.959832825385.5327481118340.449483700552931625242236WETL
2022-10-29 04:00:05FORECAST20233011040.4832.5436.5115.7899986666670.86231.13232.573.7023TF8.48271.4864341.706480256945.39554486764840.46959877606151625242236DRYL
2022-10-29 00:00:04FORECAST20233011038.4133.0135.7131.0662386666670.78340.81342.573.3834TF6.41267.4164351.4568234533310.918441558430.385752334185361625231213.5DRYL
2022-10-28 20:00:03FORECAST20233011038.9633.2136.08531.0008573333330.84550.93552.573.5055TF6.96274.9664351.4158935848210.8941939816890.407681536802431625231213.5DRYL
2022-10-28 16:00:03FORECAST20233011038.633.135.8531.0309786666670.850.942.573.51TF6.6273.664351.4347509154710.9053642583830.393290553993871625231213.5DRYL
2022-10-28 12:00:04FORECAST20233011037.8832.7335.30530.6897007135960.88650.98652.573.5565TF5.88272.8864351.2210108734910.7788677080340.364959615525581625231213.5DRYL
2022-10-28 08:00:03FORECAST20233011038.9332.0735.530.9202902331041.10391.48392.574.0539TF6.93269.9364351.3654478087210.864321624130.406477228070851625241218WETL
2022-10-28 04:00:16FORECAST20233011038.532.1535.32531.1957535759011.24571.83572.574.4057TF6.5274.564351.537882006510.9664891396690.389317886603351625251222.5WETL
2022-10-28 00:00:05FORECAST20233011042.133.1237.6125.5762185879731.24251.81252.474.2825TF10.1275.164347.996186757118.9004265402810.536373008345911635252250WETL
2022-10-27 20:00:04FORECAST20233011039.2232.6835.9525.4146666666670.95171.56172.494.0517TF7.22275.2264347.893619714198.84160038049630.418154262882581625252245WETL
2022-10-27 16:00:04FORECAST20233011041.9832.4337.20525.404281.08611.81612.494.3061TF9.98279.9864347.887023925538.83781936417080.531438769228381635252250WETL
2022-10-27 12:00:03FORECAST20233011041.4132.8637.13524.8273826666671.24241.93242.494.4224TF9.41281.4164347.520406564648.62802211825580.50794806111391635252250WETL
2022-10-27 08:00:03FORECAST20233011040.9233.1137.01524.9350213333331.13281.84282.514.3528TF8.92279.9264347.588851542728.66713542844670.487729173668161625252245WETL
2022-10-27 04:00:09FORECAST20233011041.1633.0937.12524.7812780833331.09921.75922.534.2892TF9.16277.1664347.49108398488.61127318370630.49763158619041625252245WETL
2022-10-27 00:00:04FORECAST20233011041.5833.6937.6357.90217634241032.28693.08692.135.2169TT9.58281.5864336.521861820222.65925509517960.514960648701541635253275WETH
2022-10-26 20:00:05FORECAST20233011040.0433.8336.9358.0136945125662.20463.07462.255.3246TT8.04279.0464336.595888301192.69737662303150.451531202522691625253267.5WETH
2022-10-26 16:00:04FORECAST20233011041.9734.8438.4057.6771786435482.25033.20032.355.5503TT9.97282.9764336.372443050072.5823913360620.531027354007031635253275WETH
2022-10-26 12:00:03FORECAST20233011041.3633.7137.5358.1879954033670.76351.64352.333.9735TF9.36280.3664336.711548366712.75699261028720.505884970587671635253275DRYVH
2022-10-26 08:00:05FORECAST20233011042.0732.8637.4657.98190902671110.95252.09252.284.3725TF10.07285.0764336.574791027062.68650936266230.535139943069631635253275WETM
2022-10-26 04:00:19FORECAST20233011042.1533.437.7757.54099106909740.99272.41272.354.7627TF10.15287.1564336.281960720082.53589926248870.538427335089291635253275WETM
2022-10-26 00:00:06FORECAST20233011042.7234.3638.5411.6088020009191.50882.81881.74.5188TF10.72279.7264338.971144460013.93504890006110.561760958974091635253275WETM
2022-10-25 20:00:05FORECAST20233011043.535.4639.488.4076671707721.67823.11822.655.7682TT11.5290.564336.857242067992.83218357537180.593330839616311635253275WETH
2022-10-25 16:00:05FORECAST20233011043.5335.4339.488.53332956218551.70512.79512.85.5951TT11.53288.5364336.940549045562.87522474786950.594534406170351635253275WETH
2022-10-25 12:00:06FORECAST20233011042.6434.7238.6812.1198121094770.58411.80412.934.7341TF10.64284.6464339.307007210644.11233717482210.558497092956831635253275WETM
2022-10-25 08:00:06FORECAST20233011040.532.336.413.300595768260.69181.59183.084.6718TF8.5274.564340.081414977554.52328542891430.470421803961551625253267.5WETM
2022-10-25 04:00:17FORECAST20233011040.1432.4836.3113.7449629827360.69181.27183.194.4618TF8.14275.1464340.372248776914.67840395978910.455630022839561625243254WETM
2022-10-25 00:00:11FORECAST20233011037.7331.5834.6555.84069840840780.34581.16582.914.0758TF5.73273.7364335.149656244281.95750806380440.359143264349151625244272WETM
2022-10-24 20:00:04FORECAST20233011036.8130.5933.76.56884488039390.4471.4873.484.967TF4.81281.8164335.635161805532.20473531430650.324223591067831625244272WETM
2022-10-24 16:00:04FORECAST20233011037.4330.7334.086.18150939383930.4471.2173.424.637TF5.43281.4364335.377010261542.07313613940950.347609116600711625244272WETM
2022-10-24 12:00:05FORECAST20233011039.5832.235.896.41016034121410.23671.04673.34.3467TF7.58280.5864335.52943236692.15079746066840.432749736696111625244272WETM
2022-10-24 08:00:07FORECAST20233011040.8931.0535.977.91744399928130.22760.83763.994.8276TF8.89280.8964336.531997828272.66447324677160.486491778644851625233240.5WETM
2022-10-24 04:00:16FORECAST20233011040.6932.3536.52NAN0.22760.83764.114.9476TF8.69282.6964NANNAN0.478246375957141625235267.5WETM
2022-10-24 00:00:03FORECAST20233011038.2125.8932.0518.4248285575991.44532.91534.137.0453TT6.21306.2164343.415322605466.32736844305830.377863750581211625252245WETL
2022-10-23 20:00:02FORECAST20233011033.6129.5731.5918.8629380793730.6992.2393.866.099TT1.61314.6164343.698355184386.48316079182540.215644214711891615252240WETL
2022-10-23 16:00:06FORECAST20233011033.8229.7131.76515.7540565981430.34771.88773.655.5377TF1.82317.8264341.683090551695.38289474717960.222058647224861615252240WETL
2022-10-23 12:00:03FORECAST20233011035.6831.7833.7312.5985613912470.47041.07043.584.6504TF3.68325.6864339.621271168094.27873943458470.28338349824441625243254WETM
2022-10-23 08:00:04FORECAST20233011036.3632.4534.40512.7752481560980.22370.85373.364.2137TF4.36317.3664339.737156622254.34022648369650.307667646698751625233240.5WETM
2022-10-23 04:00:21FORECAST20233011036.3633.1934.77513.6078635478440.18960.81963.354.1696TF4.36312.3664340.282553611154.63051855725260.307667646698751625233240.5WETM