MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, January 8, 2023

[ Saturday, January 7, 2023 | Index | Today | Monday, January 9, 2023 ]

DAY 100 OF WATER YEAR 2023, FORECAST LAST UPDATED 01/09/2023 07:00:17 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): 31.12°F
MINIMUM TEMPERATURE (Tmin): 26.98°F
AVERAGE TEMPERATURE (Tavg): 29.05°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.362
Maximum Percentile on this day is based on 16 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: 28

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: 0.60 in
DAY 1-3 (P3): 1.26 in
DAY 4-15 (P15): 9.79 in
18-DAY TOTAL (P18): 11.05 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: 89 in
SWE DAY: 8
CALCULATED SNOW DENSITY: 334.60 kg/m3
CALCULATED SWE: 29.71 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: -184

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: 4
D4: 1
D5: 2
HSdry: 8.0

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
2023-01-09 07:00:17OBSERVATION2023100-18431.1199826.9799829.0499888.7947556521740.600000000000021.269.7911.05TT-0.8800228.119988334.5981710712 29.7105628419320.3618862235883616 2114128WETL
2023-01-09 03:00:16OBSERVATION2023100-18431.1199826.9799829.0499888.7947556521740.600000000000021.269.7911.05TT-0.8800228.119988334.5981710712 29.7105628419320.3618862235883616 2114128WETL
2023-01-08 11:00:01FORECAST2023100-18432.1922.227.19587.525246736170.56651.22659.7911.0165TT0.1929.198333.7477701173929.2113559271720.40914394349341162114128WETL
2023-01-08 07:00:21FORECAST2023100-18430.0222.4526.23587.1344823976870.52811.18819.7910.9781TT-1.9827.028333.485457931829.0580827640430.31541426789127162114128WETL
2023-01-08 03:00:11FORECAST2023100-18431.0722.9927.0387.4120596613650.61571.27579.7911.0657TT-0.9328.078333.6718167095629.1669407495320.35972337066811162114128WETL
2023-01-07 23:00:04FORECAST2023100-18433.1222.9128.01582.388962741450.58450.93459.7910.7245TT1.1233.128330.2790197668927.2113458538570.45134733176649162113126WETL
2023-01-07 19:00:01FORECAST2023100-18435.1423.4729.30582.3287634398710.56440.91449.7910.7044TT3.1435.148330.2380957241127.1880940617030.54427656307878163113127.5WETL
2023-01-07 15:00:02FORECAST2023100-18432.9823.3528.16582.4233381977250.56250.91259.7910.7025TT0.9832.988330.3023857137827.2246252452030.444946638277162113126WETL
2023-01-07 11:00:06FORECAST2023100-18435.423.229.383.0609887179550.51660.86669.7910.6566TT3.435.48330.735444666227.4712130380470.55616952089665163113127.5WETL
2023-01-07 07:00:14FORECAST2023100-18435.3423.9429.6483.3715507031840.50360.89369.7910.6836TT3.3435.348330.9461082995627.5914902481180.55342908041809163113127.5WETL
2023-01-07 03:00:25FORECAST2023100-18435.1724.0529.6183.7052050445120.47161.00169.7910.7916TT3.1735.178331.1722510852927.7208411821470.545651060610831631141210WETL
2023-01-06 23:00:05FORECAST2023100-18434.4223.9729.19583.5132198081610.44611.01619.7910.8061TT2.4238.428331.0421515804627.6463959707050.511167354048291631141210WETL
2023-01-06 19:00:05FORECAST2023100-18433.0924.6428.86583.4003109718570.44311.01319.7910.8031TT1.0934.098330.9656088580327.6026346997490.44997463137421162114128WETL
2023-01-06 15:00:07FORECAST2023100-18435.4824.3829.9382.7452934653580.60581.09589.7910.8858TT3.4838.488330.5211285935827.3490677819770.559819245505011631141210WETL
2023-01-06 11:00:07FORECAST2023100-18435.6225.1430.3883.3469239201360.61141.07149.7910.8614TT3.6238.628330.9294092697227.5819482973390.566193868287541631141210WETL
2023-01-06 07:00:24FORECAST2023100-18434.8927.931.39581.9003536328070.3930.9039.7910.693TT2.8936.898329.9466779768527.0227496062740.53280335662292163113127.5WETL
2023-01-06 03:00:25FORECAST2023100-18438.6528.0733.3681.775073703220.42390.96399.7910.7539TT6.6536.658329.8613987089526.9744401912710.69738930636296163113127.5WETL
2023-01-05 23:00:07FORECAST2023100-18436.5926.9931.7983.426683062610.40250.97259.8310.8025TT4.5939.598330.9834888888627.6128546264880.60980281542806163113127.5WETL
2023-01-05 19:00:06FORECAST2023100-18437.1628.5632.8683.042076637250.39571.03579.8310.8657TT5.1646.168330.7226106583727.4638923799640.634834920965671631141210WETL
2023-01-05 15:00:06FORECAST2023100-18437.5228.6633.0983.2502831640660.3641.0049.8310.834TT5.5242.528330.8638686170727.544510751130.650361233140751631141210WETL
2023-01-05 11:00:06FORECAST2023100-18438.527.8333.16583.3537174523660.4050.9459.8310.775TT6.542.58330.9340159601927.5845804617220.69131052972337163113127.5WETL
2023-01-05 07:00:25FORECAST2023100-18433.6426.7530.19584.5536603532820.36661.03669.8410.8766TT1.6439.648331.7464508402628.0503767277540.47521914355575162114128WETL
2023-01-05 03:00:20FORECAST2023100-18438.7826.7932.78583.8707062996680.37011.06019.8710.9301TT6.7845.788331.2843527155527.7850526482810.702613798055051641141212WETL
2023-01-04 23:00:08FORECAST2023100-18438.8129.1133.9686.1563468426650.28250.842510.0510.8925TT6.8146.818332.8277127051128.6752198546720.70381357966859164113129WETL
2023-01-04 19:00:03FORECAST2023100-18437.3928.5432.96587.034423767340.30680.906810.0310.9368TT5.3939.398333.41824872129.0188651509480.64478185672825163113127.5WETL
2023-01-04 15:00:04FORECAST2023100-18437.4428.6333.03586.26361656560.25530.785310.0110.7953TT5.4440.448332.8999258131628.7171515550630.64693152181129163113127.5WETL
2023-01-04 11:00:07FORECAST2023100-18439.8428.163485.6347772438040.19090.71099.9810.6909TT7.8448.848332.4763157312228.4715352364840.74359274955677164113129WETL
2023-01-04 07:00:27FORECAST2023100-18440.1130.7335.4285.1486897030910.2050.6759.9810.655TT8.1153.118332.1484047125128.2820014482430.75354051770997164113129WETL
2023-01-04 03:00:20FORECAST2023100-18433.6627.9730.81587.7230118220320.5391.07910.0311.109TT1.6640.668333.8804266209729.2889966116170.47613962473768162114128WETL
2023-01-03 23:00:07FORECAST2023100-18439.2927.8733.5888.7965411483680.47350.94359.8910.8335TT7.2949.298334.5993651845129.7112662988240.72270095406862164113129WETL
2023-01-03 19:00:10FORECAST2023100-1844029.2234.6189.151789884630.50761.04769.8310.8776TT8518334.8368425598529.8513038335290.749512819901271641141212WETL
2023-01-03 15:00:07FORECAST2023100-18439.0529.3734.2189.713611735790.47780.96789.8910.8578TT7.0551.058335.2119731957430.0730768124710.71333094755534164113129WETL
2023-01-03 11:00:10FORECAST2023100-18439.9329.9734.9588.3964474004670.51251.10259.8710.9725TT7.9347.938334.3316530358729.5537303818960.746931721388021641141212WETL
2023-01-03 07:00:18FORECAST2023100-18439.8929.1234.50587.6873237155410.51251.03259.910.9325TT7.8954.898333.8564927452429.2749823538870.745450559420231641141212WETL
2023-01-03 03:00:26FORECAST2023100-18437.6730.233.93587.9353309767030.64721.16729.9811.1472TT5.6752.678334.0227715229829.3724029676290.656758805215841631141210WETL
2023-01-02 23:00:06FORECAST2023100-18436.7227.332.0192.2015731218370.27960.819610.1510.9696TT4.7250.728336.8667754666731.0596466305070.61555634183293163113127.5WETL
2023-01-02 19:00:05FORECAST2023100-18438.6929.1733.9389.3290191648290.09990.419910.1810.5999TT6.6958.698334.9552370443429.9212227892940.699001217162164112126WETL
2023-01-02 15:00:03FORECAST2023100-18439.0329.9834.50589.3828195689480.09990.349910.1210.4699TT7.0363.038334.9911667869829.9424550181120.71254339360653164112126WETL
2023-01-02 11:00:06FORECAST2023100-18433.7827.2530.51592.102342049610.24170.54179.9810.5217TT1.7842.788336.8009745533931.0201585609590.48166501440906162113126WETL
2023-01-02 07:00:18FORECAST2023100-18439.0528.4333.7489.9014274361230.24170.501710.0910.5917TT7.0565.058335.3372591261630.1472982679580.71333094755534164113129WETL
2023-01-02 03:00:24FORECAST2023100-18440.1330.6535.3989.7650693607370.25020.530210.0710.6002TT8.1361.138335.2463048990530.0934078121940.75426908552124164113129WETL
2023-01-01 23:00:11FORECAST2023100-18440.5530.6835.61590.8634195743890.48481.26489.9911.2548TT8.5561.558335.9780375121630.5281133902470.769298906171641641141212WETL
2023-01-01 19:00:04FORECAST2023100-18440.0130.3135.1689.7486392122980.42831.26839.9911.2583TT8.0161.018335.2353434547730.0869158909330.749880407810821641141212WETL
2023-01-01 15:00:09FORECAST2023100-18439.7430.6735.20591.7435027650350.231.089.9211TT7.7452.748336.5628868949330.8774581444530.739856072647391641141212WETL
2023-01-01 11:00:08FORECAST2023100-18433.3127.2530.2891.7830682500210.06350.86359.8210.6835TT1.3149.318336.5891489965330.8931848345650.46005394377572162113126WETL
2023-01-01 07:00:32FORECAST2023100-18435.2232.4133.81591.563390217720.02740.82749.8810.7074TT3.2251.228336.443301506130.8058893019410.54794066750411163113127.5WETL
2023-01-01 03:00:28FORECAST2023100-18433.0132.4832.74592.8177244780360.04930.91939.8610.7793TT1.0151.018337.2749793361231.3050961053550.44631706582605162113126WETL