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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, April 10, 2022

[ Saturday, April 9, 2022 | Index | Today | Monday, April 11, 2022 ]

DAY 192 OF WATER YEAR 2022, FORECAST LAST UPDATED 04/11/2022 04:00:04 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): 24.34°F
MINIMUM TEMPERATURE (Tmin): 17.33°F
AVERAGE TEMPERATURE (Tavg): 20.83°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.042
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: -8
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: 1.14 in
DAY 1-3 (P3): 2.41 in
DAY 4-15 (P15): 3.65 in
18-DAY TOTAL (P18): 6.06 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: 165 in
SWE DAY: 99
CALCULATED SNOW DENSITY: 444.30 kg/m3
CALCULATED SWE: 73.23 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: -93

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: 1
D3: 5
D4: 1
D5: 2
HSdry: 7.5

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
2022-04-11 04:00:04OBSERVATION2022192-9324.3399217.3320.83496164.829066666671.142.413.656.06TT-7.66008107.3399299444.29661431667 73.2329962609770.04188394138230516 1115127.5WETL
2022-04-11 00:00:02FORECAST2022192-9218.0518.0518.05152.027300005680.00461.27463.654.9246TF-13.95101.05100439.8217205334966.8649086565570.0083467710642641161114126WETL
2022-04-10 12:00:01FORECAST2022192-9223.1117.0320.07152.384716862260.24271.51273.655.1627TF-8.89106.11100439.9651650094367.0439670992190.031517967923285161115127.5WETL
2022-04-10 08:00:02FORECAST2022192-9220.3213.0316.675153.639795506010.39771.66773.655.3177TF-11.68103.32100440.4678437607767.6733894423760.01564023238854161115127.5WETL
2022-04-10 04:00:05FORECAST2022192-9223.1914.4418.815154.81413786490.63041.90043.655.5504TF-8.81106.19100440.9367373925168.2632408523830.032120875232955161115127.5WETL
2022-04-10 00:00:02FORECAST2022192-9320.9912.5616.775154.658753486670.83281.40283.655.0528TF-11.01100.9999440.2769444701968.0926834206780.018638540699067161114126WETL
2022-04-09 20:00:01FORECAST2022192-9321.9813.1317.555152.545760544260.85391.78393.655.4339TF-10.02111.9899439.4287069942667.032986313420.023953874890355161115127.5WETL
2022-04-09 16:00:02FORECAST2022192-9322.3715.6419.005151.864607196650.78561.71563.655.3656TF-9.63112.3799439.1542938181466.6919943294150.026371367874963161115127.5WETL
2022-04-09 12:00:03FORECAST2022192-9323.3615.6219.49153.552159862660.67641.60643.655.2564TF-8.64113.3699439.8332825941267.5373505218120.033433599820427161115127.5WETL
2022-04-09 08:00:02FORECAST2022192-9322.9914.1818.585154.173161914830.66891.63893.655.2889TF-9.01103.9999440.0824118410167.848896936630.030631122427945161115127.5WETL
2022-04-09 04:00:06FORECAST2022192-9322.6214.8618.74155.08782952180.74171.82173.655.4717TF-9.38109.6299440.4486368737668.3082231085870.028025539075885161115127.5WETL
2022-04-09 00:00:03FORECAST2022192-9324.1816.4620.32161.519467236730.68771.25773.654.9077TF-7.8283.1899442.9999228893671.5531115310010.040397624125715161114126WETL
2022-04-08 20:00:02FORECAST2022192-9321.0816.6818.88160.117298310910.74111.65113.655.3011TF-10.9287.0899442.4472612890770.843460122670.019076296785491161115127.5WETL
2022-04-08 16:00:02FORECAST2022192-9325.5916.6821.135158.639619667070.51361.40363.655.0536TF-6.4192.5999441.8627036160770.0969312467150.055078273850669161114126WETL
2022-04-08 12:00:02FORECAST2022192-9324.6216.6820.65160.656336854240.47231.40233.655.0523TF-7.3887.6299442.659954995571.1161268416410.044593145337598161114126WETL
2022-04-08 08:00:03FORECAST2022192-9320.9716.9318.95161.765985973490.52851.52853.655.1785TF-11.0383.9799443.0968843887971.6780043849340.018542429003428161115127.5WETL
2022-04-08 04:00:07FORECAST2022192-9324.2515.9220.085160.226089558720.26831.46833.655.1183TF-7.75100.2599442.4902115740270.8984762685160.041042873614454161114126WETL
2022-04-08 00:00:03FORECAST2022192-9320.0715.717.885164.971351187260.24131.40133.655.0513TF-11.9390.0799444.3521169622673.3053691381820.01463249903719161114126WETL
2022-04-07 20:00:03FORECAST2022192-9323.3215.5519.435167.989693016010.45431.66433.655.3143TF-8.6894.3299445.5248043578374.8435751150910.033120826762949161115127.5WETL
2022-04-07 16:00:02FORECAST2022192-9323.4613.4218.44168.392144915970.43791.72793.655.3779TF-8.5494.4699445.6804869377175.0490931426350.034226151482479161115127.5WETL
2022-04-07 12:00:03FORECAST2022192-9323.4115.9619.685167.260549284420.39581.70583.655.3558TF-8.5995.4199445.2423401895874.471478384790.033827971771107161115127.5WETL
2022-04-07 08:00:03FORECAST2022192-9323.1214.919.01166.13673361880.25871.50873.655.1587TF-8.8887.1299444.8059576239573.8986088938240.031592817410418161115127.5WETL
2022-04-07 04:00:05FORECAST2022192-9324.9315.0119.97167.330563719980.33051.62053.655.2705TF-7.0792.9399445.2694859050674.50719408380.047753955014555161115127.5WETL
2022-04-07 00:00:02FORECAST2022192-9320.3414.6217.48169.839673733090.31941.57943.655.2294TF-11.6683.3499446.2391283379775.7891079638560.015723359373424161115127.5WETL
2022-04-06 20:00:03FORECAST2022192-9324.0416.0320.035170.72979294520.34161.71163.655.3616TF-7.9695.0499446.581631498176.2447894787980.039131763267599161115127.5WETL
2022-04-06 16:00:03FORECAST2022192-9323.9115.7419.825169.804959106060.3811.5913.655.241TF-8.0996.9199446.2257550278775.771346084580.037985327044883161115127.5WETL
2022-04-06 12:00:02FORECAST2022192-9322.7515.8819.315169.614000101720.461.523.655.17TF-9.2594.7599446.1521697340475.6736541626510.02891921351096161115127.5WETL
2022-04-06 08:00:03FORECAST2022192-9321.4215.3418.38170.432123343010.45661.61663.665.2766TF-10.5889.4299446.4671793244776.0923493752360.020809590405296161115127.5WETL
2022-04-06 04:00:06FORECAST2022192-9325.2715.6320.45170.906059468990.46711.68713.665.3471TF-6.7393.2799446.6493641359576.3350827888040.051423604424761161115127.5WETL
2022-04-06 00:00:03FORECAST2022192-9323.4114.1418.775162.514106184340.3671.7072.954.657TF-8.5983.4199443.3907658821472.0572540077270.033827971771107161115127.5WETL
2022-04-05 20:00:02FORECAST2022192-9323.4514.6119.03162.063899599240.37981.76983.084.8498TF-8.5591.4599443.2139796920871.8289859057990.034146209698015161115127.5WETL
2022-04-05 16:00:02FORECAST2022192-9323.6914.5619.125160.30323111530.3571.5273.084.607TF-8.3189.6999442.5206595155370.9374915556130.036107544111023161115127.5WETL
2022-04-05 12:00:04FORECAST2022192-9323.1816.8520.015163.871850635920.53521.87523.084.9552TF-8.8293.1899443.9226996232972.746434326560.032044996478723161115127.5WETL
2022-04-05 08:00:03FORECAST2022192-9323.5115.619.555164.983969591180.53661.85663.195.0466TF-8.4987.5199444.3570382075973.3117880792670.034628164408269161115127.5WETL
2022-04-05 04:00:07FORECAST2022192-9323.5115.619.555166.98779716680.52891.81893.375.1889TF-8.4987.5199445.1365437884974.3323708856830.034628164408269161115127.5WETL
2022-04-05 00:00:05FORECAST2022192-9325.9117.1621.535150.61682258140.30351.12352.153.2735TF-6.0978.9199438.6503713380666.0681251550890.058934442124947161114126DRYL
2022-04-04 20:00:03FORECAST2022192-9325.9417.8521.895145.124945188390.2760.8963.164.056TF-6.0680.9499436.4133734918963.3344669074910.059306520794415161113124.5WETL
2022-04-04 16:00:02FORECAST2022192-9325.9417.8521.895145.133837148010.2760.8963.13.996TF-6.0680.9499436.4170207194163.3388768137120.059306520794415161113124.5DRYL
2022-04-04 12:00:03FORECAST2022192-9325.0717.1721.12151.158929155820.37980.92983.144.0698TF-6.9372.0799438.8694993267366.3390435573790.049238845655545161113124.5WETL
2022-04-04 08:00:03FORECAST2022192-9324.3216.4520.385154.612936247330.41350.97353.624.5935TF-7.6877.3299440.258599895568.069674837980.041696429855289161113124.5WETL
2022-04-04 04:00:07FORECAST2022192-9324.3116.520.405157.202223763990.41350.97354.165.1335TF-7.6976.3199441.2919724632369.3720794004160.041602553428002161113124.5WETL
2022-04-04 00:00:04FORECAST2022192-9325.716.0520.875162.642431248290.36831.02834.275.2983TF-6.379.799443.4411192901272.1223417568060.056380775187405161114126WETL
2022-04-03 20:00:03FORECAST2022192-9324.0615.419.73161.323372914250.44941.10944.635.7394TF-7.9474.0699442.922751106971.4537921490260.039310604884606161114126WETL
2022-04-03 16:00:04FORECAST2022192-9322.7816.719.74160.283139765690.38151.04154.515.5515TF-9.2274.7899442.5127299903570.9273297491420.029128766567033161114126WETL
2022-04-03 12:00:03FORECAST2022192-9327.6722.3825.025153.924977408080.08560.48564.54.9856TF-4.3391.6799439.9828940609767.7243570282770.08402605604141161112123WETL
2022-04-03 08:00:03FORECAST2022192-9329.0926.727.895155.636071811870.00770.41774.725.1377TF-2.9189.0999440.6677408828868.5837961652230.10951519692726161112123WETL
2022-04-03 04:00:07FORECAST2022192-9328.7426.7227.73155.311201303640.00380.41384.615.0238TF-3.2690.7499440.5379438230768.4204772749950.10277077157993161112123WETL