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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, February 14, 2020

[ Thursday, February 13, 2020 | Index | Today | Saturday, February 15, 2020 ]

DAY 137 OF WATER YEAR 2020, FORECAST LAST UPDATED 02/15/2020 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): 24.63°F
MINIMUM TEMPERATURE (Tmin): 21.53°F
AVERAGE TEMPERATURE (Tavg): 23.08°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.173
Maximum Percentile on this day is based on 86 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: -17

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: 0.54 in
DAY 1-3 (P3): 0.85 in
DAY 4-15 (P15): 20.46 in
18-DAY TOTAL (P18): 21.31 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: 171 in
SWE DAY: 45
CALCULATED SNOW DENSITY: 412.21 kg/m3
CALCULATED SWE: 70.46 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: -148

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: 3
D4: 1
D5: 2
HSdry: 4.5

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
2020-02-15 04:00:04OBSERVATION2020137-14824.6300821.5299423.08001170.93469750.540000000000020.8500000000000220.4621.31TT-7.36992-17.3699245412.21242439912 70.4614060704040.1729971898683386 1113124.5WETL
2020-02-15 00:00:03FORECAST2020138-14827.6927.6927.69166.037865462420.00910.319120.4620.7791TT-4.31-14.3145409.8884280730468.0569996749940.2671073213882862112124WETL
2020-02-14 11:59:29FORECAST2020137-14830.0425.1627.6166.334902363770.14450.454520.4620.9145TT-1.96-11.9645410.0302243673868.2023373363410.35372718647089862112124WETL
2020-02-14 08:00:02FORECAST2020137-1482824.5626.28166.852349196690.24180.551820.4621.0118TT-4-1445410.276982228968.455678306220.27789988501554862113126WETL
2020-02-14 04:00:02FORECAST2020137-14827.2324.1925.71168.379540161140.54990.859920.4621.3199TT-4.77-14.7745411.0033743476869.2045591773410.25149168200163862113126WETL
2020-02-14 00:00:03FORECAST2020137-14830.3924.827.595168.709591372340.74180.881820.4621.3418TT-1.61-16.6145411.1599897532769.3666338599310.36745754946943862113126WETL
2020-02-13 20:00:02FORECAST2020137-14829.9722.926.435170.609567740510.68660.786620.4621.2466TT-2.03-12.0345412.0590147684770.3012103932310.35100312347703862113126WETL
2020-02-13 12:02:16FORECAST2020137-14829.3624.2926.825141.168521098690.69861.03867.228.2586TT-2.64-42.6445397.6289601343556.1326922481740.32760118241574862114128WETL
2020-02-13 12:00:11FORECAST2020137-14828.0925.4126.75141.25024501740.72261.09267.228.3126TT-3.91-42.9145397.6705278327456.1710594925720.2810725609399862114128WETL
2020-02-13 08:02:14FORECAST2020137-14830.4623.6227.04141.149758949430.69291.06297.228.2829TT-1.54-36.5445397.6194158184756.1238846963880.37022473015178862114128WETL
2020-02-13 08:00:10FORECAST2020137-14829.3625.8127.585141.272832318490.79481.14487.228.3648TT-2.64-37.6445397.6820150173856.1816646236290.32760118241574862114128WETL
2020-02-13 04:02:14FORECAST2020137-14829.2325.8727.554.44844261221350.83681.18687.228.4068TT-2.77-36.7745314.47695282711.39893267751520.322696396242938621144232WETL
2020-02-13 04:00:11FORECAST2020137-14827.7925.5226.6554.82965298400310.86351.25357.228.4735TT-4.21-38.2145314.751251272771.52013931992820.270565581947638621144232WETL
2020-02-13 00:02:17FORECAST2020137-14827.8925.2826.585141.84895334690.81271.22277.228.4427TT-4.11-42.1145397.9747892201556.4523073093320.27404603729176862114128WETL
2020-02-13 00:00:12FORECAST2020137-14831.2723.7627.515141.777245233040.81051.21057.228.4305TT-0.73-35.7345397.938371803956.418606126880.40269976339465862114128WETL
2020-02-12 08:02:16FORECAST2020137-14829.9626.0528.005140.89092052480.65171.05177.228.2717TT-2.04-28.0445397.4876981346756.0024076874780.35061459171199862114128WETL
2020-02-12 08:00:11FORECAST2020137-14832.2525.4528.85140.819702022590.59971.05977.228.2797TT0.25-23.7545397.4514412729655.9689935285070.44288616360963862114128WETL
2020-02-12 04:02:14FORECAST2020137-14828.2425.9527.0953.82209495521970.54150.98157.228.2015TT-3.76-28.7645314.025689701531.20023600441760.286398874457488621134224WETL
2020-02-12 04:00:11FORECAST2020137-14830.325.5727.9353.90413508745820.55030.99037.228.2103TT-1.7-31.745314.084837816951.22622963575980.363909847705228621144232WETL
2020-02-12 00:02:15FORECAST2020137-14828.4826.2427.36140.349533163170.51220.85227.228.0722TT-3.52-31.5245397.2119168155355.7485070919070.29501915120469862113126WETL
2020-02-12 00:00:12FORECAST2020137-14830.0725.1427.605140.848731113470.62720.98727.228.2072TT-1.93-26.9345397.4662205802455.9826128291940.3548969472643862113126WETL
2020-02-11 16:02:14FORECAST2020137-14830.1126.0828.095140.747363327320.62490.97497.38.2749TT-1.89-17.8945397.4146074136355.9350581412290.35645875584941862113126WETL
2020-02-11 16:00:11FORECAST2020137-14830.1226.0928.105140.76136961440.62490.97497.38.2749TT-1.88-17.8845397.4217397489155.9416284015950.35684958544865862113126WETL
2020-02-11 08:00:11FORECAST2020137-14827.2924.6425.965141.436550958150.56941.10947.38.4094TT-4.71-21.7145397.7652574251956.2585461011970.25350082740516862114128WETL
2020-02-11 04:02:14FORECAST2020137-14827.3324.4425.8855.18100076256650.55861.11867.318.4286TT-4.67-30.6745315.003827110751.63203506847220.254844921377058621144232WETL
2020-02-11 04:00:11FORECAST2020137-14829.2824.4626.874.87731556248950.56761.17767.318.4876TT-2.72-24.7245314.785528020531.5353083546610.324579266328718621144232WETL
2020-02-10 16:02:16FORECAST2020137-14831.9824.4628.22143.647450232130.5451.3857.38.685TT-0.02-23.0245398.8860011115357.2989569929630.43173715362918862114128WETL
2020-02-10 12:00:11FORECAST2020137-14832.9326.2429.585144.090158846310.6751.6057.288.885TT0.93-25.0745399.1096625741457.5077746774050.47114655572988621151210WETL
2020-02-10 08:00:11FORECAST2020137-14832.9626.2829.62143.766920929470.6751.5657.278.835TT0.96-17.0445398.9463838560457.3552932229290.472397753547838621151210WETL
2020-02-10 04:00:11FORECAST2020137-14832.7525.3229.0356.26267942387810.64291.58297.288.8629TT0.75-18.2545315.780007353031.97762895452190.463645778338698621154240WETL
2020-02-10 00:00:12FORECAST2020137-14832.7925.3929.09142.715378901830.64291.55297.298.8429TT0.79-12.2145398.4142850306656.8598456480520.465311596035788621151210WETL
2020-02-09 20:01:15FORECAST2020137-14833.7624.0728.915142.588242082470.43371.32377.278.5937TT1.76-0.2445398.349855200756.8000055868750.505824542249288631141210WETL
2020-02-09 16:00:11FORECAST2020137-14833.1725.3329.25141.022363650460.42640.93647.268.1964TT1.170.1745397.5545977275456.0640890516460.48116307612079862113126WETL
2020-02-09 12:01:14FORECAST2020137-14833.2125.429.305140.938203148140.42640.88647.288.1664TT1.211.2145397.5117657786456.0245939990860.48283382470512862113126WETL
2020-02-09 08:01:15FORECAST2020137-14833.4425.4629.45138.645460390280.40191.05197.258.3019TT1.441.4445396.34138696854.95093406790.49244557881792862114128WETL
2020-02-09 04:00:13FORECAST2020137-14833.4225.8729.6453.44954970058120.48321.04327.258.2932TT1.423.4245313.756942259311.08232016622590.491609519584948621144232WETL
2020-02-09 00:00:17FORECAST2020137-14831.5126.5929.05140.063821968090.54531.11537.258.3653TT-0.494.5145397.0662233230855.6146128130670.41246374355977862114128WETL
2020-02-08 20:01:13FORECAST2020137-14830.0424.7727.405142.33210961250.57011.38017.338.7101TT-1.9610.0445398.2199903322356.6794913138550.35372718647089862114128WETL
2020-02-08 16:00:11FORECAST2020137-14834.9325.1430.035139.178029105370.34621.00627.328.3262TT2.9313.9345396.6138559200955.1999347828410.554572673773688631141210WETL
2020-02-08 12:01:14FORECAST2020137-14834.9825.1930.085139.571742693950.34621.00627.338.3362TT2.9813.9845396.8150479929155.3841677755520.556642896131418631141210WETL
2020-02-08 08:00:11FORECAST2020137-14833.6425.4429.54144.288360696760.56121.17127.628.7912TT1.642.6445399.2097149435557.6013153434270.50080739042578631141210WETL
2020-02-08 04:01:15FORECAST2020137-14833.6622.6328.1457.69147115823930.34470.97478.018.9847TT1.668.6645316.802002167332.43667346254250.501643612695998631134230WETL
2020-02-08 00:00:15FORECAST2020137-14833.7122.6628.185146.56294377470.34470.97478.379.3447TT1.718.7145400.3543266990458.6771086739490.50373412874119863113127.5WETL
2020-02-07 20:01:15FORECAST2020137-14832.7423.2527.995146.345156440550.37111.20119.5910.7911TT0.7417.7445400.2450181864758.5739198010510.46322942233066862114128WETL
2020-02-07 16:01:15FORECAST2020137-14832.2623.7327.995146.709758788520.19161.21169.6710.8816TT0.2615.2645400.4279797489258.7466923211390.44330001592619862114128WETL
2020-02-07 12:00:11FORECAST2020137-14827.223.7625.48148.709674746140.18631.20639.5810.7863TT-4.810.245401.4285519597159.6963093957420.25049026922567862114128WETL
2020-02-07 08:00:11FORECAST2020137-14830.4727.8729.17141.474829196650.05230.18239.779.9523TT-1.5320.4745397.7847149250256.2765246010540.37062059419073862112124WETL
2020-02-07 04:01:16FORECAST2020137-14829.3329.0929.216.12311910620810.00580.135810.1710.3058TT-2.6721.3345315.679982825851.93294613428840.326466627304338621124216WETL