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

Daily Debris Flow Hazard (DFH) for Sunday, February 9, 2020

[ Saturday, February 8, 2020 | Index | Today | Monday, February 10, 2020 ]

DAY 132 OF WATER YEAR 2020, FORECAST LAST UPDATED 02/13/2020 02:44:01 PM
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): 30.90°F
MINIMUM TEMPERATURE (Tmin): 16.10°F
AVERAGE TEMPERATURE (Tavg): 23.50°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.351
Maximum Percentile on this day is based on 92 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: -6

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): 4.59 in
DAY 4-15 (P15): 21.40 in
18-DAY TOTAL (P18): 25.99 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: 173 in
SWE DAY: 40
CALCULATED SNOW DENSITY: 391.62 kg/m3
CALCULATED SWE: 67.75 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: -153

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
2020-02-10 00:00:12FORECAST2020133-15324.1124.1124.11137.008721820.00180.051812.812.8518TT-7.89-28.8940391.6193668416353.6552688909270.1366501429506901111121.5WETL
2020-02-09 12:01:14FORECAST2020132-15335.9425.1730.555136.954189702540.01190.061912.812.8619TT3.94-17.0640391.5907926066653.6299996964210.55902867702801903111122.5WETL
2020-02-09 08:01:14FORECAST2020132-15336.2320.7428.485136.921832566880.00860.058612.812.8586TT4.23-16.7740391.5738359493353.6150072034240.57102972902679903111122.5WETL
2020-02-09 04:00:12FORECAST2020132-15332.3921.7727.080.00602254715001840.0110.06112.812.861TT0.39-20.6140305.762554659430.00184146940214650.411096727215289021115210WETL
2020-02-09 00:00:17FORECAST2020132-15336.4720.1728.32136.988811015680.01330.063312.812.8633TT4.47-16.5340391.6089342559953.6460422868440.58091271462301903111122.5WETL
2020-02-08 20:01:12FORECAST2020132-15336.3216.4626.39136.971970418840.00970.159712.812.9597TT4.32-8.6840391.60010994353.6382386751270.57474141774783903112125WETL
2020-02-08 16:00:11FORECAST2020132-15335.8618.927.38136.946899945350.00510.155112.812.9551TT3.86-9.1440391.5869725534753.6266219501810.55570799436415903112125WETL
2020-02-08 12:01:14FORECAST2020132-15336.3719.4627.915137.27877616960.00510.155112.812.9551TT4.37-8.6340391.7608140589253.7804451052140.57680063048497903112125WETL
2020-02-08 08:00:11FORECAST2020132-15336.0318.7727.4138.648664119190.0030.47312.813.273TT4.03-11.9740392.4768321089754.4163884696390.5627594792677903112125WETL
2020-02-08 04:01:15FORECAST2020132-15336.1419.2527.6952.93498614540940.00290.862912.813.6629TT4.14-10.8640307.92786643630.903764021776010.567311749297939031134230WETL
2020-02-08 00:00:15FORECAST2020132-15336.3119.3627.835141.659444566890.00311.223112.814.0231TT4.31-11.6940394.0417900719255.8197411177330.574329328551849031141210WETL
2020-02-07 20:01:15FORECAST2020132-15336.2919.0927.69140.452777972730.00762.437612.815.2376TT4.290.2940393.4160198044355.2563728805070.57350490702369031151212.5WETL
2020-02-07 16:01:14FORECAST2020132-15336.2118.7727.49140.71823552810.00782.517812.815.3178TT4.21-0.7940393.5538491490955.3802032375520.570204043642349031151212.5WETL
2020-02-07 12:00:11FORECAST2020132-15336.419.4327.915142.460616005880.00722.427212.815.2272TT4.40.440394.4562147104356.1944753349940.578035155754569031151212.5WETL
2020-02-07 08:00:11FORECAST2020132-15336.231927.615142.276610195140.00372.623712.815.4237TT4.230.2340394.3611079967556.1083616385790.571029729026799031151212.5WETL
2020-02-07 04:01:16FORECAST2020132-15336.4519.1227.7857.03285623231670.00363.023612.815.8236TT4.45-1.5540310.930414239812.18672890160330.580090989348099031154250WETL
2020-02-07 00:01:13FORECAST2020132-15337.319.928.6141.762236498560.00453.524512.816.3245TT5.32.340394.0950087712855.8677898363360.614662431921099031151212.5WETL
2020-02-06 20:00:11FORECAST2020132-15336.6520.2428.445141.478309555420.00213.412114.9718.3821TT4.650.6540393.9479768102855.7350938118960.588291952273439031151212.5WETL
2020-02-06 16:01:14FORECAST2020132-15337.4419.9528.695141.885971239530.00243.502414.9718.4724TT5.445.4440394.1590518116355.9256398891460.620278003240049031151212.5WETL
2020-02-06 12:00:11FORECAST2020132-15337.7218.9928.355141.772630675740.0033.42314.9718.393TT5.725.7240394.1003893986355.8726489553780.631432322950199031151212.5WETL
2020-02-06 08:00:11FORECAST2020132-15332.6622.1327.395141.568401701970.00283.242815.6218.8628TT0.661.6640393.9946426386555.7771918374930.422172806138319021151210WETL
2020-02-06 04:00:11FORECAST2020132-15337.5517.2927.427.49716873035430.00273.342716.4519.7927TT5.553.5540311.268653404472.33363361504350.62467258329659031154250WETL
2020-02-06 00:00:12FORECAST2020132-15337.5921.6729.63141.814007271970.00223.312217.0720.3822TT5.596.5940394.1218069100255.8919927911780.626266644727469031151212.5WETL
2020-02-05 20:00:10FORECAST2020132-15337.0520.9228.985142.637616958960.00033.560318.6222.1803TT5.059.0540394.5476589025356.2773378425920.60457532128629031151212.5WETL
2020-02-05 16:00:10FORECAST2020132-15336.8721.1629.015143.005987373150.00083.610818.722.3108TT4.877.8740394.7378387414856.4498743827690.597268548011069031151212.5WETL
2020-02-05 12:00:11FORECAST2020132-15336.921.229.05143.506247523950.00083.570818.7422.3108TT4.96.940394.9958249911756.6843686321090.598488779865919031151212.5WETL
2020-02-05 08:00:10FORECAST2020132-15335.820.5828.19144.981869175280.00193.381918.8722.2519TT3.85.840395.7549024376557.3772854906930.553214900642299031151212.5WETL
2020-02-05 04:00:12FORECAST2020132-1533621.7728.88511.5737792372740.00143.221419.5122.7314TT4840314.221290620623.63672784929440.561516481540699031153237.5WETL
2020-02-05 00:00:12FORECAST2020132-15336.0421.8128.925147.303244171330.00142.951420.0122.9614TT4.048.0440396.9433020394558.471036142490.563173674859459031151212.5WETL
2020-02-04 20:01:11FORECAST2020132-15336.3321.7629.045145.465551446930.00032.490320.5823.0703TT4.338.3340396.00309590757.6048087208050.575153425312669031151212.5WETL
2020-02-04 16:00:11FORECAST2020132-15336.321.428.85143.688453023520.00082.200820.5122.7108TT4.37.340395.0897077166456.7698289073190.573917158163939031151212.5WETL
2020-02-04 12:00:10FORECAST2020132-15336.3321.4428.885145.679126458440.00082.080820.4122.4908TT4.337.3340396.1125913441257.7053362861990.575153425312669031151212.5WETL
2020-02-04 08:00:11FORECAST2020132-15335.2523.6229.435152.571144012880.00792.837920.5423.3779TT3.255.2540399.6142868625660.9696089105110.530275892639339031151212.5WETL
2020-02-04 04:00:13FORECAST2020132-15336.1123.930.00517.6067382129970.00922.529220.3422.8692TT4.1113.1140318.535165828685.60836527637920.566071080440419031152225WETL
2020-02-04 00:00:12FORECAST2020132-15336.1423.9230.03146.001613708940.00922.719220.0722.7892TT4.1416.1440396.2778112887757.8571999252090.567311749297939031151212.5WETL
2020-02-03 20:00:11FORECAST2020132-15338.0424.0531.045142.05634549020.01941.609419.2720.8794TT6.0424.0440394.2472017536956.0053167008680.644045396984219031151212.5WETL
2020-02-03 16:00:11FORECAST2020132-15337.8524.3231.085142.097116152890.0071.73719.0820.817TT5.8521.8540394.2682904329656.0243870610560.636574367656759031151212.5WETL
2020-02-03 12:00:11FORECAST2020132-15338.0724.6431.355142.040456705590.0071.73719.4321.167TT6.0723.0740394.238982667455.9978851492230.645220081933379031151212.5WETL
2020-02-03 08:00:11FORECAST2020132-15332.4826.229.34139.19929310740.30352.533519.7122.2435TT0.4825.4840392.7639356467854.6724622001130.414781347438059021151210WETL
2020-02-03 04:00:12FORECAST2020132-15336.723.630.157.72156461436010.30592.135919.3821.5159TT4.727.740311.431976847462.40474213220560.590336329817569031154250WETL
2020-02-03 00:00:13FORECAST2020132-15336.1926.1931.19140.859320065250.30952.139519.922.0395TT4.1931.1940393.6270644383455.4460406560640.569378051118079031151212.5WETL
2020-02-02 20:00:10FORECAST2020132-15336.9924.230.595142.511605245510.01462.184620.5722.7546TT4.9933.9940394.4825615518356.2183430881110.602143673574849031151212.5WETL
2020-02-02 16:00:11FORECAST2020132-15337.423.2230.31143.907319433890.00742.427420.1222.5474TT5.430.440395.2024228194856.8725213017290.618676082104439031151212.5WETL
2020-02-02 12:00:11FORECAST2020132-15330.3123.2526.78144.957372297310.00742.427419.9222.3474TT-1.6920.3140395.7423241599157.3657674170490.328734621478719021151210WETL
2020-02-02 08:00:10FORECAST2020132-15325.6224.0224.82142.528608788570.00431.674320.6522.3243TT-6.3812.6240394.4913467577356.2263028325080.1744790657888901115127.5WETL
2020-02-02 04:00:12FORECAST2020132-15325.6424.9225.28144.385308203010.00411.774120.3822.1541TT-6.3616.6440395.4483668901357.0969343318090.1750209231606901115127.5WETL