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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, February 12, 2025

[ Tuesday, February 11, 2025 | Index | Today | Thursday, February 13, 2025 ]

DAY 135 OF WATER YEAR 2025, FORECAST LAST UPDATED 02/08/2025 03:00:02 PM

THIS DAY'S DEBRIS FLOW HAZARD CLASS:
L
LOW

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 20.19°F
MINIMUM TEMPERATURE (Tmin): 5.76°F
AVERAGE TEMPERATURE (Tavg): 12.97°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.037
Maximum Percentile on this day is based on 16 years of historic (1917-2017) records:


Forecasted temperatures from DarkSky
DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: -12
18-DAY CUMULATIVE DD32: -55

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): 0.04 in
DAY 4-15 (P15): 2.90 in
18-DAY TOTAL (P18): 2.94 in

PRECIP THRESHOLD A (PA) EXCEEDED: False
P3 > (-0.67 * P15 + 2.5)

PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)

Forecasted precipitation from DarkSky
Snow at Paradise DEPTH: 135 in
SWE DAY: 43
CALCULATED SNOW DENSITY: 393.05 kg/m3
CALCULATED SWE: 53.17 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.

Forecasted snow from DarkSky
Seasonal Variables DAYS SINCE JULY 11: -149

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: 1
D4: 1
D5: 2
HSdry: 1.5

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
2025-02-08 15:00:02FORECAST2025135-14920.1925.75612.974135.2643796945800.042.92.94FF-11.808-54.80843393.0520149774453.1659369936260.037098326525087161111121.5DRYL
2025-02-08 11:00:01FORECAST2025135-14918.8783.07410.976136.20933867696002.892.89FF-13.122-57.12243393.5431006671953.6042454827570.025910052395685161111121.5DRYL
2025-02-08 07:00:04FORECAST2025135-14919.1665.10812.137136.0893668874400.012.942.95FF-12.834-56.83443393.480817838253.5485553819530.028084959888575161111121.5DRYL
2025-02-08 03:00:04FORECAST2025135-14919.4544.44211.948136.18294049300.012.952.96FF-12.546-57.54643393.529397794253.5919905620550.030409363639305161111121.5DRYL
2025-02-07 23:00:02FORECAST2025135-14918.955.9912.47138.5915748589900.022.922.94FF-13.05-58.0543394.7759061818154.7126145541210.026440154528278161111121.5DRYL
2025-02-07 19:00:02FORECAST2025135-14918.8425.79212.317138.993909359700.032.973FF-13.158-56.15843394.9833786830154.9002839352530.025648345293571161111121.5DRYL
2025-02-07 15:00:02FORECAST2025135-14919.5443.95611.75138.7144833384500.042.922.96FF-12.456-56.45643394.8393090952154.7699307628510.031167535862596161111121.5DRYL
2025-02-07 11:00:02FORECAST2025135-14921.0387.0714.054139.3070292341800.072.922.99FF-10.962-56.96243395.1446990800555.0464341464760.04619191980554161111121.5DRYL
2025-02-07 07:00:03FORECAST2025135-14919.9227.08813.505138.7551293389500.082.892.97FF-12.078-58.07843394.8602721696354.788888135710.034523993491635161111121.5DRYL
2025-02-07 03:00:04FORECAST2025135-14918.0866.06212.074138.5161195430800.072.872.94FF-13.914-57.91443394.7369723975954.6774336566980.020642362949919161111121.5DRYL
2025-02-06 23:00:02FORECAST2025135-14917.426.812.11139.962652335310.1196851040.1396851042.873.009685104FF-14.58-64.5843395.4820629892155.352718487010.016942081323232161112123DRYL
2025-02-06 19:00:02FORECAST2025135-14918.1227.64612.884140.378026987710.1196851040.1396851042.963.099685104FF-13.878-58.87843395.6955117414655.5469552261590.020860473464181161112123DRYL
2025-02-06 15:00:03FORECAST2025135-14917.4926.92612.209139.8358423995600.043.033.07FF-14.508-58.50843395.416854229855.2934489102090.017312701589669161111121.5DRYL
2025-02-06 11:00:03FORECAST2025135-14916.74.51410.607139.4648302716800.052.932.98FF-15.3-63.343395.2259500876555.1201200479380.013593714507525161111121.5DRYL
2025-02-06 07:00:03FORECAST2025135-14916.2144.71210.463140.6012527369900.053.043.09FF-15.786-63.78643395.8101278560355.6513998225460.011670535024503161111121.5DRYL
2025-02-06 03:00:04FORECAST2025135-14915.1885.3610.274140.6340003715400.033.073.1FF-16.812-63.81243395.8269367887655.6667255754170.0083699570066094161111121.5DRYL
2025-02-05 23:00:03FORECAST2025135-14918.145.912.02142.546163013690.0051181130.1151181133.533.645118113FF-13.86-69.8643396.806004519156.5631734049890.020970256676012161112123DRYL
2025-02-05 19:00:03FORECAST2025135-14922.6587.28614.972143.904918741270.2122048390.3122048393.413.722204839TF-9.342-66.34243397.4988318249957.2020370935240.068514917929146161112123DRYL
2025-02-05 15:00:02FORECAST2025135-14919.047.39413.217143.519349968910.1905512840.2505512843.443.690551284TF-12.96-71.9643397.3024738713557.0205927910570.027115464381723161112123DRYL
2025-02-05 11:00:02FORECAST2025135-14914.543.7949.167145.065635575800.033.453.48FF-17.46-79.4643398.0887886205257.7490031368360.0067356420282048161111121.5DRYL
2025-02-05 07:00:04FORECAST2025135-14916.7546.76411.759146.62545102420.1421260610.2321260613.423.652126061TF-15.246-71.24643398.8788607615558.4857928631810.013823384085231161112123DRYL
2025-02-05 03:00:04FORECAST2025135-14916.0527.05211.552146.7465471949400.313.313.62TF-15.948-71.94843398.9400671205758.5430773876630.011084175824079161112123DRYL
2025-02-04 23:00:05FORECAST2025135-14916.078.67212.371148.485588057100.343.23.54FF-15.93-75.9343399.8169675994159.3670575492070.011148037658482161112123DRYL
2025-02-04 19:00:03FORECAST2025135-14919.11210.5814.846148.5009368831900.393.213.6TF-12.888-63.88843399.824689917659.3743410417940.02766599311897161112123DRYL
2025-02-04 15:00:03FORECAST2025135-14927.96820.0323.999151.590254376560.4350396050.8150396053.194.005039605TF-4.032-47.03243401.3728782620260.8442167155910.19887845370162161113124.5WETL
2025-02-04 11:00:03FORECAST2025135-14927.15819.423.279151.844790174220.4385829140.97858291433.978582914TF-4.842-46.84243401.499896094560.9656674774430.17274392351516161113124.5DRYL
2025-02-04 07:00:05FORECAST2025135-14924.58415.85420.219153.110471485010.4929136521.0629136522.974.032913652TF-7.416-56.41643402.130275320461.5703560527040.10489261688596161114126WETL
2025-02-04 03:00:03FORECAST2025135-14923.3612.45217.906151.906557107150.5704727490.7904727493.13.890472749TF-8.64-59.6443401.5307064989460.9951471970580.080447730045622161113124.5DRYL
2025-02-03 23:00:03FORECAST2025135-14921.28.43814.819149.251231082340.4350396050.5550396053.33.855039605TF-10.8-77.843400.2018119344559.73061311260.048121759645535161113124.5DRYL
2025-02-03 19:00:03FORECAST2025135-14924.24212.00218.122147.947328566650.4421262230.4621262233.313.772126223TF-7.758-69.75843399.5459674056259.1117585172390.0975783179453161112123DRYL
2025-02-03 15:00:03FORECAST2025135-14924.7110.90417.807143.0570987989900.013.293.3FF-7.29-66.2943397.0668103895856.8032259237030.1076846942077161111121.5DRYL
2025-02-03 11:00:03FORECAST2025135-14929.78612.07420.93145.796107898310.2236221680.3136221683.233.543622168FF-2.214-58.21443398.4591745687558.0937968084960.26555593199791162112124DRYL
2025-02-03 07:00:04FORECAST2025135-14930.4714.75622.613149.102055269440.519685320.759685323.133.88968532TF-1.53-56.5343400.1268885995859.6597414587650.29328816652529162113126DRYL
2025-02-03 03:00:04FORECAST2025135-14930.4712.6521.56156.620271842530.5374018651.3474018653.284.627401865TF-1.53-65.5343403.8677850864163.2538822886750.29328816652529162114128WETL
2025-02-02 23:00:03FORECAST2025135-14916.167.93412.047143.581157998900.253.453.7TF-15.84-82.8443397.3339636857557.0496706182910.011472161903446161112123DRYL
2025-02-02 19:00:03FORECAST2025135-14916.8628.4212.641144.635032682840.0007874020.3007874023.53.800787402TF-15.138-84.13843397.8701292794357.5459591518580.014292761397161161112123DRYL
2025-02-02 15:00:04FORECAST2025135-14927.51817.36622.442142.004168559090.0011811030.1211811033.533.651181103FF-4.482-57.48243396.5289746248256.3087673511850.1840778018687161112123DRYL
2025-02-02 11:00:03FORECAST2025135-14931.60430.81231.208150.975583121210.3653545280.8153545283.694.505354528TF-0.396-42.39643401.0658077006660.5511441875850.34199439764695162113126WETL
2025-02-02 07:00:05FORECAST2025135-14929.22827.30228.265148.112831610040.1070866720.3870866723.84.187086672TF-2.772-43.77243399.6293334997759.1902321790850.24395999072918161112123WETL
2025-02-02 03:00:05FORECAST2025135-14921.9221.39821.659147.009696084710.0492126250.1992126253.753.949212625TF-10.08-57.0843399.0730071442258.6676014958830.05748847173026161112123DRYL