MOUNT RAINIER
GEOLOGY & WEATHER
Hello guest! [ Log In ]
MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Tuesday, March 9, 2021

[ Monday, March 8, 2021 | Index | Today | Wednesday, March 10, 2021 ]

DAY 160 OF WATER YEAR 2021, FORECAST LAST UPDATED 03/10/2021 07:00:07 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): 31.08°F
MINIMUM TEMPERATURE (Tmin): 21.90°F
AVERAGE TEMPERATURE (Tavg): 26.49°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.329
Maximum Percentile on this day is based on 89 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: -1
18-DAY CUMULATIVE DD32: -14

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: 0.02 in
DAY 1-3 (P3): 0.46 in
DAY 4-15 (P15): 9.12 in
18-DAY TOTAL (P18): 9.58 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: 210 in
SWE DAY: 68
CALCULATED SNOW DENSITY: 444.01 kg/m3
CALCULATED SWE: 93.45 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: -124

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 1
D2: 1
D3: 2
D4: 1
D5: 2
HSdry: 4.0

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
2021-03-10 06:58:28OBSERVATION2021160-12431.0800221.9000226.49002210.460537083330.0199999999999820.459999999999989.129.58TT-0.91998-13.9199868444.00509600992 93.4455509739850.3288379298313389 2112124WETL
2021-03-10 03:00:08OBSERVATION2021160-12431.0800221.9000226.49002210.460537083330.0199999999999820.459999999999989.129.58TT-0.91998-13.9199868444.00509600992 93.4455509739850.3288379298313389 2112124WETL
2021-03-09 11:00:02FORECAST2021160-12433.6221.9827.8214.137467846410.03880.47889.129.5988TT1.62-11.3868445.4356918581495.3844711429160.43429788140359892112124WETL
2021-03-09 06:58:23FORECAST2021160-12428.2322.6725.45214.08548804020.06570.50579.129.6257TT-3.77-16.7768445.4155608636595.3570077281910.22520339010468891113124.5WETL
2021-03-09 03:00:08FORECAST2021160-12432.8322.427.615214.145022032350.08360.52369.129.6436TT0.83-12.1768445.4386172591695.3884625070230.40059477467486892113126WETL
2021-03-08 23:00:01FORECAST2021160-12432.5622.0727.315213.452681741970.10390.60399.129.7239TT0.56-8.4468445.1702712778495.0227882360560.38923045327226892113126WETL
2021-03-08 19:00:02FORECAST2021160-12432.7722.1427.455213.557746601470.12650.62659.129.7465TT0.77-8.2368445.2110240196995.0782630517770.39806171828041892113126WETL
2021-03-08 15:00:02FORECAST2021160-12432.721.1426.92213.517481870640.11740.61749.129.7374TT0.7-8.368445.1954073506195.0570023178760.39511191267504892113126WETL
2021-03-08 11:00:06FORECAST2021160-12432.9823.4328.205213.743599848050.10310.60319.129.7231TT0.98-8.0268445.2830864736295.1764098543220.40694550678107892113126WETL
2021-03-08 07:00:08FORECAST2021160-12433.2721.9627.615214.109003380410.11780.64789.129.7678TT1.27-8.7368445.4246683292595.3694318170240.4192917908228892113126WETL
2021-03-08 02:58:27FORECAST2021160-12433.1622.8528.005214.27995455750.15070.69079.129.8107TT1.16-8.8468445.4908611842895.459761490350.41459865897498892113126WETL
2021-03-07 23:00:03FORECAST2021160-12433.2722.2127.74212.382610061520.16710.49719.129.6171TT1.27-4.7368444.7545899625994.4581406530940.4192917908228892113126WETL
2021-03-07 19:00:06FORECAST2021160-12433.6722.428.035212.066430091760.16260.44269.129.5626TT1.67-3.3368444.6315499244294.2914254986370.43644988620628892112124WETL
2021-03-07 15:00:06FORECAST2021160-12433.8222.9228.37211.82500478870.11210.38219.129.5021TT1.82-3.1868444.5375337807694.1641652218670.44291694427428892112124WETL
2021-03-07 11:00:06FORECAST2021160-12434.0622.6128.335212.732195238710.11540.37549.129.4954TT2.06-2.9468444.8905145146894.6425357935870.45329523102805892112124WETL
2021-03-07 07:00:07FORECAST2021160-12434.0222.3628.19213.385230525810.12650.46659.129.5865TT2.02-1.9868445.144102449194.9871769183080.45156310403962892112124WETL
2021-03-07 03:00:07FORECAST2021160-12434.2822.4928.385214.352028558450.10150.67159.129.7915TT2.28-1.7268445.5187598610295.4978499370530.4628369420192892113126WETL
2021-03-06 23:00:06FORECAST2021160-12434.2122.4128.31213.928364227840.1150.6159.189.795TT2.210.2168445.3546930199895.2740009789580.45979835751695892113126WETL
2021-03-06 19:00:06FORECAST2021160-12434.5921.3427.965213.931501654820.12870.64879.189.8287TT2.592.5968445.3559086585395.2756583101680.47631718495402892113126WETL
2021-03-06 15:00:06FORECAST2021160-12431.6722.0426.855214.079711244470.09380.65389.189.8338TT-0.330.6768445.4133234337395.3539556651320.35248352911103892113126WETL
2021-03-06 11:00:06FORECAST2021160-12428.8618.7423.8214.884463341190.11280.75289.189.9328TT-3.14-1.1468445.724698579695.7793126521910.24640459177032891113124.5WETL
2021-03-06 07:00:08FORECAST2021160-12429.1621.4225.29214.272948055860.08340.59349.199.7834TT-2.84-0.8468445.4881488087495.45605896920.2568636316876892113126WETL
2021-03-06 03:00:09FORECAST2021160-12434.2921.4527.87214.526025673460.08570.61579.229.8357TT2.291.2968445.5860902777595.5898130426610.46327120677442892113126WETL
2021-03-05 23:00:06FORECAST2021160-12436.0221.6328.825213.454744571420.06980.58989.249.8298TT4.022.0268445.1710715164195.0238773611210.53861028443658893113127.5WETL
2021-03-05 19:00:06FORECAST2021160-12436.0920.2628.175213.501979057530.09240.59249.249.8324TT4.09-2.9168445.1893941612895.0488167088550.54164777365573893113127.5WETL
2021-03-05 15:00:06FORECAST2021160-12435.7121.5228.615213.700303786560.09040.64049.249.8804TT3.712.7168445.2663019640995.1535439956450.52513388027881893113127.5WETL
2021-03-05 11:00:06FORECAST2021160-12431.7820.0325.905215.588800169070.08910.68919.29.8891TT-0.22-12.2268445.9966991798796.1518932555570.35695934286892892113126WETL
2021-03-05 07:00:08FORECAST2021160-12427.120.523.8215.533598592560.05530.62539.239.8553TT-4.9-15.968445.9753990203796.1226826346130.18988572187212891113124.5WETL
2021-03-05 03:00:09FORECAST2021160-12427.0920.523.795215.580524894680.0540.6149.269.874TT-4.91-14.9168445.9935062609296.1475141793470.18958916814615891113124.5WETL
2021-03-04 22:58:43FORECAST2021160-12433.5519.1326.34216.989860067360.0310.5519.239.781TT1.55-3.4568446.5363155290796.8938526216480.43128835634131892113126WETL
2021-03-04 18:59:49FORECAST2021160-12433.5720.5627.065217.603141599830.03160.57169.249.8116TT1.57-4.4368446.7719165025197.2189726095230.43214782164676892113126WETL
2021-03-04 15:00:06FORECAST2021160-12433.9420.9627.45217.284186085350.02710.56719.269.8271TT1.94-1.0668446.6494309290697.0498580649080.44810164749238892113126WETL
2021-03-04 11:00:06FORECAST2021160-12433.7819.3726.575217.028124558260.01090.44099.289.7209TT1.78-5.2268446.5510261241896.9141317192960.4411908347013892112124WETL
2021-03-04 07:00:08FORECAST2021160-12433.9318.9826.455216.920890916030.01090.43099.39.7309TT1.930.9368446.5097970672396.857302982560.44766923760782892112124WETL
2021-03-04 02:58:45FORECAST2021160-12434.819.8727.335216.581665378960.00310.33319.39.6331TT2.82.868446.3792980800396.6775717688640.48546533828982892112124WETL
2021-03-03 23:00:06FORECAST2021160-12433.8520.3827.115219.527375128820.01690.26699.319.5769TT1.85-9.1568447.5087608952398.2404236264790.44421223959779892112124WETL
2021-03-03 19:00:06FORECAST2021160-12433.8519.5726.71219.719378435020.01690.30699.289.5869TT1.85-8.1568447.5820870760498.3424579709950.44421223959779892112124WETL
2021-03-03 15:00:06FORECAST2021160-12433.4220.7427.08220.957108873940.07750.35759.379.7275TT1.42-8.5868448.0539197683999.0006987316590.4257099357877892112124WETL
2021-03-03 11:00:07FORECAST2021160-12435.1921.828.495220.099598759150.07310.36319.229.5831TT3.19-6.8168447.7271879694398.5445744256360.5024714235646893112125WETL
2021-03-03 07:00:08FORECAST2021160-12435.3121.7928.55220.186242718240.07310.36319.299.6531TT3.31-4.6968447.7602337131598.5906434999420.50770459669164893112125WETL
2021-03-03 03:00:08FORECAST2021160-12435.1723.9829.575220.681621293770.10270.36279.39.6627TT3.17-6.8368447.9490300105198.8541181996910.50159916237022893112125WETL
2021-03-02 23:00:06FORECAST2021160-12431.0823.0827.08230.570042423370.41550.91559.5510.4655TT-0.92-15.9268451.66838274078104.141198169840.32883713910059892113126WETL
2021-03-02 19:00:06FORECAST2021160-12431.2724.1727.72230.624282541480.32840.86849.5410.4084TT-0.73-16.7368451.68852766835104.170342625730.33638318897906892113126WETL
2021-03-02 15:00:06FORECAST2021160-12431.0123.1227.065229.725914947810.15120.80129.4610.2612TT-0.99-15.9968451.35451354024103.687828588850.32607429379099892113126WETL
2021-03-02 11:00:06FORECAST2021160-12425.7421.5423.64229.10316554420.13360.70369.3710.0736TT-6.26-24.2668451.12252688197103.353598956960.15218857490461891113124.5WETL
2021-03-02 06:58:53FORECAST2021160-1242621.6623.83228.897085030680.1080.6789.410.078TT-6-2368451.04567690871103.243040660090.15898319339282891113124.5WETL
2021-03-02 03:00:08FORECAST2021160-12422.7122.3422.525228.811004526830.03790.68799.3610.0479TT-9.29-22.2968451.01356451116103.196866751020.087104711139003891113124.5WETL