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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Thursday, June 25, 2020

[ Wednesday, June 24, 2020 | Index | Today | Friday, June 26, 2020 ]

DAY 269 OF WATER YEAR 2020, FORECAST LAST UPDATED 06/26/2020 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): 64.81°F
MINIMUM TEMPERATURE (Tmin): 43.04°F
AVERAGE TEMPERATURE (Tavg): 53.92°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.801
Maximum Percentile on this day is based on 93 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 33
18-DAY CUMULATIVE DD32: 347

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): 0.07 in
DAY 4-15 (P15): 4.72 in
18-DAY TOTAL (P18): 4.79 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: 73 in
SWE DAY: 176
CALCULATED SNOW DENSITY: 453.21 kg/m3
CALCULATED SWE: 33.16 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: -17

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 4
D1: 1
D2: 2
D3: 1
D4: 1
D5: 2
HSdry: 3.5

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
2020-06-26 04:00:04OBSERVATION2020269-1764.8100443.0399453.9249973.1642237500.074.724.79TF32.81004346.81004176453.2086918606 33.1586621367340.80125927769793 4121123.5WETL
2020-06-25 12:00:03FORECAST2020269-1669.554.7362.11576.7772533333330.00410.07414.724.7941TF37.5351.5177455.0742338937934.9393497411360.90101763963665935121118WETL
2020-06-25 08:00:01FORECAST2020269-1664.8653.9459.476.3255426666670.01060.08064.724.8006TF32.86346.86177454.9102694079134.7212731771980.80256685888275934121123.5WETL
2020-06-25 03:54:27FORECAST2020269-1670.4749.5460.00575.9055933333330.01440.08444.724.8044TF38.47352.47177454.7576649902334.5186503839650.91600933403952935121118WETL
2020-06-24 23:58:52FORECAST2020269-1771.4847.6259.5575.510080.02060.09064.724.8106TF39.48353.48176454.0682679603334.2867312391460.929742370807569351221116WETL
2020-06-24 19:54:40FORECAST2020269-1770.746.8658.7877.5863946666670.00430.07434.724.7943TF38.7352.7176454.8248166829435.2882177313570.9193009002653935121118WETL
2020-06-24 16:00:02FORECAST2020269-1771.4447.2359.33577.548620.00490.07494.724.7949TF39.44353.44176454.8110882962635.2699722580730.92923341923278935121118WETL
2020-06-24 11:54:16FORECAST2020269-1771.0449.6660.3575.7066813333330.00270.07274.724.7927TF39.04353.04176454.1400749059634.3814379316020.92398753796156935121118WETL
2020-06-24 08:00:03FORECAST2020269-1771.2449.4460.3475.2554080.00440.10444.724.8244TF39.24352.24176453.9751978778534.1640887381780.926646220263489351221116WETL
2020-06-24 04:00:03FORECAST2020269-1771.349.4160.35575.2322576666670.00460.10464.724.8246TF39.3347.3176453.9667345848734.1529423483840.927429839511499351221116WETL
2020-06-23 23:58:53FORECAST2020269-1771.3448.9860.1675.3873560.00270.09274.724.8127TF39.34355.34176454.023425893734.2276256401880.927948691642849351221116WETL
2020-06-23 20:00:02FORECAST2020269-1771.0348.8459.93578.4895280.00480.09484.724.8148TF39.03355.03176455.1526490789535.7247165941570.92385270933789351221116WETL
2020-06-23 16:00:02FORECAST2020269-1771.0448.2259.6378.4892546666670.00510.11514.724.8351TF39.04355.04176455.1525499741935.7245844071070.923987537961569351221116WETL
2020-06-23 12:00:02FORECAST2020269-1770.1948.2559.2276.0418280.00250.08254.724.8025TF38.19355.19176454.2624017074834.5429434175070.91186784430026935121118WETL
2020-06-23 08:00:02FORECAST2020269-1769.7347.9258.82575.4234386666670.00280.07284.724.7928TF37.73353.73176454.0366115736434.2450025254460.90473759853544935121118WETL
2020-06-23 04:00:04FORECAST2020269-1769.5147.8958.774.8697215833330.00280.06284.724.7828TF37.51347.51176453.8341337962233.9784352423360.90118154814951935121118WETL
2020-06-22 23:54:48FORECAST2020269-1769.2748.735975.4266466666670.00290.12294.734.8529TF37.27356.27176454.0377838137934.2465474930390.897192869498389351221116WETL
2020-06-22 20:00:02FORECAST2020269-1770.0248.8759.44577.3492933333330.00220.07224.734.8022TF38.02359.02176454.7386255072835.1737113343590.90928041733884935121118WETL
2020-06-22 16:00:03FORECAST2020269-1770.1448.6659.477.3304880.00230.05234.734.7823TF38.14359.14176454.7317871626435.1646310103990.911112594035935121118WETL
2020-06-22 12:00:02FORECAST2020269-1766.0547.5256.78575.271960.00060.04064.734.7706TF34.05353.05176453.981248648734.1720583890350.83215933928582934121123.5WETL
2020-06-22 08:00:03FORECAST2020269-1765.5747.6356.675.0392440.00050.06054.734.7905TF33.57347.57176453.8961533231134.0600241998750.82058345911432934121123.5WETL
2020-06-22 04:00:02FORECAST2020269-1770.2447.0458.6474.56932250.00060.07064.734.8006TF38.24356.24176453.7241676231833.8339037815370.91261831631201935121118WETL
2020-06-21 23:54:24FORECAST2020269-1769.344.6856.9975.6662533333330.00410.06414.754.8141TF37.3364.3176454.125311855334.3619608919230.89769773636474935121118WETL
2020-06-21 20:00:02FORECAST2020269-1769.3344.3256.82576.7038640.0050.0454.754.795TF37.33365.33176454.503735623534.8621927247570.89820080348142935121118WETL
2020-06-21 16:02:50FORECAST2020269-1768.9346.3157.6276.6508373333330.00520.05524.744.7952TF36.93364.93176454.4844206049634.8366113943250.89134453418715935121118WETL
2020-06-21 12:00:03FORECAST2020269-1770.6147.2558.9375.2273720.00230.03234.744.7723TF38.61363.61176453.964948420534.150590049790.91802465082884935121118WETL
2020-06-21 08:00:01FORECAST2020269-1770.6347.2758.9575.1054106666670.00230.03234.754.7823TF38.63357.63176453.92035305634.0918745262290.91830956354541935121118WETL
2020-06-21 04:00:04FORECAST2020269-1766.7446.7556.74575.0620693333330.00250.01254.774.7825TF34.74364.74176453.9045018980434.0710111921830.84793911009944934121123.5WETL
2020-06-20 23:58:54FORECAST2020269-1769.546.6358.06577.5682560.0010.0014.694.691TF37.5369.5176454.8182247407235.2794564901540.90101763963665935121118WETL
2020-06-20 20:00:04FORECAST2020269-1769.5246.6458.0878.696340.0010.0014.694.691TF37.52369.52176455.2276149248135.8247471615120.90134525861521935121118WETL
2020-06-20 15:58:54FORECAST2020269-1769.5346.357.91578.5249053333330.0010.0014.674.671TF37.53370.53176455.1654755550335.741825878960.90150877112806935121118WETL
2020-06-20 11:54:44FORECAST2020269-1768.3346.5257.42577.4591240.0010.0114.684.691TF36.33366.33176454.7785576504635.2267486895880.88044942708183935121118WETL
2020-06-20 08:00:03FORECAST2020269-1768.2748.8358.5577.1474146666670.00260.00264.824.8226TF36.27361.27176454.665197565435.076244531080.87931909339972935121118WETL
2020-06-20 04:00:03FORECAST2020269-1768.9749.1659.06575.8405790.00260.00264.774.7726TF36.97371.97176454.1889593537534.4459536527960.89204469725927935121118WETL
2020-06-20 00:00:02FORECAST2020269-1770.3347.5658.94576.1738560.0020.0024.784.782TF38.33357.33176454.3105626610734.6065873794230.91395716843975935121118WETL
2020-06-19 20:00:03FORECAST2020269-1770.3847.5758.97578.4765453333330.0020.0025.055.052TF38.38370.38176455.147941768535.7184380855690.9146943344425935121118WETL
2020-06-19 16:00:03FORECAST2020269-1770.0247.958.9678.4110.0020.0024.954.952TF38.02371.02176455.1241736926935.6867415834180.90928041733884935121118WETL
2020-06-19 12:00:03FORECAST2020269-1765.7845.8355.80577.0964853333330.00020.000255.0002TF33.78361.78176454.6466674402735.0516601281580.82570820025087934121123.5WETL
2020-06-19 08:00:02FORECAST2020269-1765.8145.8555.8376.4485760.00020.00024.874.8702TF33.81360.81176454.4107228128634.7390526781740.82643265707572934121123.5WETL
2020-06-19 04:00:04FORECAST2020269-1766.8846.7556.81576.3507383939390.00020.00024.814.8102TF34.88363.88176454.375060217534.6918713553970.85101679347197935121124WETL
2020-06-18 23:58:55FORECAST2020269-1768.547.5358.01575.7248813333330.00020.00024.754.7502TF36.5380.5176454.1467204861734.3902065167380.88361154085743935121118WETL
2020-06-18 20:00:03FORECAST2020269-1769.948.7859.3478.1651666666670.00250.00254.984.9825TF37.9381.9176455.0349942474835.567886164520.90742045591314935121118WETL
2020-06-18 16:00:04FORECAST2020269-1769.548.9159.20578.5971426666670.00240.00244.934.9324TF37.5384.5176455.1916624865335.7767640371310.90101763963665935121118WETL
2020-06-18 11:54:50FORECAST2020269-1768.5253.9361.22576.981524004.834.83TF36.52379.52176454.6048311033834.99617271610.88397962866208935121118WETL
2020-06-18 08:00:01FORECAST2020269-1758.7154.3556.5376.849066666667004.814.81TF26.71372.71176454.5566125327534.9322514203030.6074624565869933121123WETL
2020-06-18 04:00:04FORECAST2020269-1754.8154.354.55576.961013666667004.834.83TF22.81372.81176454.5973657684534.9862740797370.46261413523276932121122.5WETL