NBM Guidance for DETROIT DAM (KDR9)
44.7167N 122.2500W
Elevation 1644 ft
HOURLY TO 24 HOURS:
KDR9 NBM V5.0 NBH GUIDANCE 8/27/2026 1500 UTC
UTC 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 Time (UTC)
PDT 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 Time (PDT)
TMP 60 61 63 66 67 68 69 70 70 70 67 63 61 60 58 57 56 54 54 53 52 50 51 56 60 Temperature(F)
TSD 1 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SD of temp(F)
DPT 56 57 57 58 56 55 54 53 52 53 54 53 52 52 51 50 49 48 48 47 46 46 46 48 51 Dew point temp(F)
DSD 2 2 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 2 Dew point temp SD(F)
WBG 59 60 63 66 66 67 66 64 64 63 62 59 58 56 55 54 53 52 51 50 50 49 49 53 57 Wet bulb temp(F)
SKY 63 58 45 39 31 17 12 23 5 12 8 8 13 23 25 18 11 20 18 22 19 29 42 19 5 Sky cover(%)
SSD 22 23 28 33 30 26 22 32 10 19 12 8 15 27 29 30 16 31 29 32 31 31 33 20 4 Sky cover SD(%)
WDR 28 29 29 29 28 29 29 30 30 30 30 30 30 31 32 32 35 5 4 1 36 36 36 36 29 Wind dir (deg)
WSP 3 4 5 6 7 7 7 7 7 6 5 4 3 2 2 2 2 2 2 2 2 1 1 1 1 Wind spd (kts)
WSD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Wind spd SD(kts)
GST 8 9 10 11 11 12 12 12 12 11 10 9 7 6 5 5 5 5 4 4 4 3 3 4 3 Wind gust(kts)
GSD 2 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 Wind gust SD(kts)
P01 1 0 1 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr PoP(%)
P06 8 0 0 6-hr PoP(%)
Q01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr QPF (.01")
T01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr tstm prob(%)
PZR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob ZR(%)
PSN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Snow(%)
PPL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Sleet/IP(%)
PRA 12 12 0 12 12 12 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob of rain(%)
S01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr snow(1/10in)
SLV 85 82 79 78 77 78 77 79 79 79 80 79 79 79 78 79 79 79 79 79 79 79 79 78 79 Snow level 100s feet MSL
I01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr ice(1/100in)
CIG 45 27 45-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88 Ceiling height*
MVC 28 42 18 4 3 4 4 2 2 1 1 0 2 2 3 4 8 9 11 13 16 18 18 17 16 Prob cig<=3000ft(%) MVFR
IFC 7 11 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 3 2 1 2 3 3 2 Prob cig<1000ft(%) IFR
LIC 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 1 0 1 1 2 1 Prob cig<500ft(%) LIFR
LCB 17 20 45 70 80 30 34 41 35 37 47 30 24 47 39 35 40 90110110110120100 70170 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 6 4 2 1 1 1 1 1 1 1 0 0 0 0 0 0 1 2 4 5 7 8 9 8 6 Prob vsby<=5mi(%) MVFR
IFV 4 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 5 4 Prob vsby<3mi(%) IFR
LIV 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 3 4 4 3 Prob vsby<1mi(%) LIFR
MHT 19 21 27 31 37 38 40 39 37 29 24 6 4 4 3 4 4 4 4 3 3 2 3 5 13 MixHgt 100s feet AGL
TWD 24 24 24 24 25 26 26 27 27 28 29 29 30 33 35 1 5 6 7 3 4 3 6 5 33 Transport wind dir
TWS 7 7 8 8 9 10 9 9 10 8 8 7 6 5 4 4 4 3 3 3 3 3 3 3 4 Transport wind spd(kts)
SOL 18 26 42 69 78 76 73 62 52 29 12 4 3 2 2 0 0 0 0 0 0 0 3 16 32 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
KDR9 NBM V5.0 NBS GUIDANCE 8/27/2026 1500 UTC
DT /AUG 28 /AUG 29 /AUG 30
UTC 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 Time (UTC)
PDT 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 Time (PDT)
FHR 06 09 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 Forecast Hour
TXN 50 70 50 64 46 Max/Min Temp(F)
XND 2 2 3 3 3 SD of max/min temps(F)
TMP 68 70 63 58 54 52 56 65 69 69 63 57 53 52 52 58 62 63 58 54 50 47 49 Temperature(F)
TSD 2 2 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 2 1 1 1 2 SD of temp(F)
DPT 55 52 53 51 48 46 48 54 56 54 52 49 47 45 46 50 52 51 48 45 43 40 41 Dew point temp(F)
DSD 2 2 2 2 2 2 3 1 1 1 2 2 2 2 3 2 2 3 3 3 2 3 3 Dew point temp SD(F)
WBG 67 64 59 55 52 50 53 63 67 64 58 54 51 49 50 57 62 59 53 50 47 44 47 Wet bulb temp(F)
SKY 17 5 8 25 20 19 19 1 5 3 13 31 45 70 69 34 29 23 23 26 28 27 25 Sky cover(%)
SSD 26 10 8 29 31 31 20 2 4 3 18 28 34 40 13 22 22 15 13 16 19 24 15 Sky cover SD(%)
WDR 29 30 30 32 5 36 36 30 29 29 30 29 27 28 26 27 28 29 30 30 9 10 9 Wind dir (deg)
WSP 7 7 4 2 2 2 1 4 8 7 5 3 2 1 2 5 8 7 4 3 2 2 2 Wind spd (kts)
WSD 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 2 1 1 1 1 Wind spd SD(kts)
GST 12 12 9 5 5 4 4 8 12 13 12 7 5 4 5 9 12 13 9 7 5 5 5 Wind gust(kts)
GSD 1 1 2 2 2 1 1 1 1 1 3 2 2 2 2 1 1 2 3 2 2 1 2 Wind gust SD(kts)
P06 8 0 0 0 0 2 14 13 3 6 2 6-hr PoP(%)
P12 0 0 14 3 7 12-hr PoP(%)
Q06 0 0 0 0 0 0 2 0 0 0 0 6-hr QPF(.01in)
Q12 0 0 2 0 0 12-hr QPF(.01in)
DUR 0 0 0 0 0 Duration of precip(hrs)
T03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3-hr Tstm prob(%)
T06 0 0 0 0 0 0 0 2 3 0 0 6-hr Tstm prob(%)
T12 0 0 0 3 0 12-hr Tstm prob(%)
PZR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob ZR(%)
PSN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Snow(%)
PPL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Sleet/IP(%)
PRA 12 0 0 0 0 0 0 0 0 0 0 0 0 20 0 32 1 1 1 1 0 0 0 Cond prob of rain(%)
S06 0 0 0 0 0 0 0 0 0 0 0 6-hr snow(1/10in)
SLV 78 79 79 78 79 79 78 80 82 82 82 81 79 74 71 70 69 71 75 74 71 69 67 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG -88-88-88-88-88-88-88-88-88-88-88-88-88 50 60-88-88-88-88-88-88-88-88 Ceiling height*
IFC 0 0 0 0 3 1 3 0 0 0 0 3 4 5 4 1 0 0 1 3 5 5 9 Prob cig<1000ft(%) IFR
LCB 30 35 30 39 90110 70220220260 45 21 8 1 7 20 34 50 41 28 11 8120 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 0 0 0 0 1 4 5 1 0 0 0 1 3 5 5 1 0 0 0 0 3 5 6 Prob vsby<3mi(%) IFR
MHT 38 37 6 3 4 3 5 31 38 37 13 3 3 4 9 34 50 48 12 3 2 2 5 MixHgt 100s feet AGL
TWD 26 27 29 35 6 4 5 29 28 28 30 30 27 27 27 28 28 29 30 33 6 8 6 Transport wind dir
TWS 10 10 7 4 3 3 3 4 8 9 8 6 6 5 5 8 10 11 8 5 3 2 3 Transport wind spd(kts)
SOL 76 52 4 2 0 0 16 61 84 54 5 3 0 0 6 21 70 58 20 10 0 0 4 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
KDR9 NBM V5.0 NBE GUIDANCE 8/27/2026 1500 UTC
FRI 28 |SAT 29 |SUN 30 |MON 31 |TUE 01 |WED 02 |THU 03 |FRI 04 CLIMO
UTC 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12 Time (UTC)
PDT 05 17 05 17 05 17 05 17 05 17 05 17 05 17 05 Time (PDT)
FHR 21| 33 45| 57 69| 81 93|105 117|129 141|153 165|177 189 Forecast Hour
TXN 50| 70 50| 64 46| 70 50| 73 52| 67 50| 63 50| 63 49 48 79 Max/Min Temp(F)
XND 2| 2 3| 3 3| 4 3| 4 3| 5 2| 6 2| 8 4 SD of max/min temps(F)
TMP 52| 69 52| 63 47| 69 51| 71 53| 65 54| 62 54| 62 52 Temperature(F)
TSD 1| 2 2| 3 1| 4 2| 4 2| 5 2| 7 3| 8 4 SD of temp(F)
DPT 46| 54 45| 51 40| 51 38| 52 44| 56 47| 55 46| 55 43 Dew point temp(F)
DSD 2| 1 2| 3 3| 2 3| 3 4| 3 3| 4 4| 4 4 Dew point temp SD(F)
WBG 50| 64 49| 59 44| 63 47| 64 49| 62 51| 60 51| 60 49 Wet bulb temp(F)
SKY 19| 3 70| 23 27| 13 23| 33 58| 32 67| 41 60| 30 39 Sky cover(%)
SSD 31| 3 40| 15 24| 25 29| 26 32| 28 20| 26 21| 28 31 Sky cover SD(%)
WDR 36| 29 28| 29 10| 31 9| 28 16| 26 18| 26 19| 26 14 Wind dir (deg)
WSP 2| 7 1| 7 2| 6 2| 6 1| 7 2| 6 3| 6 3 Wind spd (kts)
WSD 1| 1 1| 1 1| 1 1| 1 1| 2 1| 2 2| 3 2 Wind spd SD(kts)
GST 4| 13 4| 13 5| 10 4| 12 4| 14 6| 13 7| 12 7 Wind gust(kts)
GSD 1| 1 2| 2 1| 2 2| 2 2| 3 4| 4 6| 4 4 Wind gust SD(kts)
P12 0| 0 14| 3 7| 2 1| 0 11| 21 34| 41 47| 50 38 -99-99 12-hr PoP(%)
Q12 0| 0 2| 0 0| 0 0| 0 0| 3 3| 13 24| 25 12 12-hr QPF(.01in)
Q24 | 2| 0| 0| 0| 6| 37| 37 44 24-hr QPF(.01in)
DUR 0| 0 0| 0 0| 0 0| 0 0| 1 1| 3 4| 4 3 Duration of precip(hrs)
T12 0| 0 0| 3 0| 0 1| 1 2| 8 6| 6 7| 10 6 12-hr Tstm prob(%)
PZR 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob ZR(%)
PSN 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob Snow(%)
PPL 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob Sleet/IP(%)
PRA 0| 0 20| 1 0| 0 1| 1 9| 30 28| 44 42| 38 27 Cond prob of rain(%)
S12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 12-hr snow(1/10in)
S24 | 0| 0| 0| 0| 0| 0| 0 24-hr snow(1/10in)
SLV 79| 82 74| 71 69| 86 88| 93 89| 87 83| 86 81| 84 77 Snow level 100s feet MSL
I12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 4| 51 2| 39 7| 47 7| 43 5| 18 1| 10 2| 12 2 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
KDR9 NBM V5.0 NBX GUIDANCE 8/27/2026 1500 UTC
SAT 05| SUN 06| MON 07
UTC 00 12 |00 12 |00 12 Time (UTC)
PDT 17 05 |17 05 |17 05 Time (PDT)
FHR 201 213|225 237|249 261 Forecast Hour
TXN 67 49| 70 52| 72 53 Max/Min Temp(F)
XND 10 6| 9 5| 9 4 SD of max/min temps(F)
TMP 66 53| 69 54| 71 55 Temperature(F)
TSD 10 6| 10 5| 9 5 SD of temp(F)
DPT 54 41| 53 41| 54 42 Dew point temp(F)
DSD 5 6| 6 6| 6 6 Dew point temp SD(F)
WBG 62 48| 63 50| 64 50 Wet bulb temp(F)
SKY 27 36| 27 31| 25 32 Sky cover(%)
SSD 20 27| 23 17| 12 17 Sky cover SD(%)
WDR 30 11| 31 7| 33 9 Wind dir (deg)
WSP 5 3| 5 3| 6 3 Wind spd (kts)
WSD 3 2| 2 2| 2 2 Wind spd SD(kts)
GST 10 7| 10 6| 10 7 Wind gust(kts)
GSD 4 4| 4 4| 3 5 Wind gust SD(kts)
P12 30 22| 22 18| 14 13 12-hr PoP(%)
Q12 3 8| 1 0| 2 2 12-hr QPF(.01in)
Q24 11| 1| 4 24-hr QPF(.01in)
DUR 0 3| 1 0| 1 0 Duration of precip(hrs)
PZR 0 0| 0 0| 0 0 Cond prob ZR(%)
PSN 0 0| 0 0| 0 0 Cond prob Snow(%)
PPL 0 0| 0 0| 0 0 Cond prob Sleet/IP(%)
PRA 32 21| 25 12| 15 12 Cond prob of rain(%)
S12 0 0| 0 0| 0 0 12-hr snow(1/10in)
S24 0| 0| 0 24-hr snow(1/10in)
SLV 83 79| 86 81| 89 87 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 13 12| 19 8| 24 19 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
KDR9 NBM V5.0 NBP GUIDANCE 8/27/2026 1300 UTC
FRI 28| SAT 29| SUN 30| MON 31| TUE 01| WED 02| THU 03| FRI 04| SAT 05|
UTC 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 Time (UTC)
PDT 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 Time (PDT)
FHR 23| 35 47| 59 71| 83 95|107 119|131 143|155 167|179 191|203 215|227 Forecast Hour
TXNMN 51| 70 50| 64 46| 70 50| 73 52| 67 50| 63 50| 63 49| 67 49| 67 Mean min/max temp(F)
TXNSD 2| 2 3| 3 3| 4 3| 4 3| 5 3| 6 2| 8 4| 10 6| 10 SD min/max temp(F)
TXNP1 48| 68 46| 61 43| 65 46| 69 48| 60 47| 55 48| 54 43| 55 42| 55 10th percentile min/max temp(F)
TXNP2 49| 69 48| 62 44| 67 47| 70 50| 64 48| 58 49| 57 47| 59 44| 59 25th percentile min/max temp(F)
TXNP5 50| 71 50| 64 46| 70 49| 72 52| 67 51| 63 50| 62 49| 66 49| 66 50th percentile min/max temp(F)
TXNP7 53| 72 52| 66 50| 73 52| 75 53| 71 52| 67 52| 69 51| 75 52| 75 75th percentile min/max temp(F)
TXNP9 54| 73 53| 67 51| 74 53| 78 55| 73 53| 72 53| 75 53| 81 58| 81 90th percentile min/max temp(F)
WSPP1 1| 6 1| 6 1| 4 1| 5 1| 5 2| 3 2| 3 1| 2 2| 0 10th percentile wnd(kts)
WSPP2 1| 7 1| 6 2| 5 1| 5 1| 6 2| 5 2| 4 2| 4 2| 4 25th percentile wnd(kts)
WSPP5 2| 7 2| 7 2| 5 2| 6 2| 7 3| 6 3| 6 3| 5 3| 5 50th percentile wnd(kts)
WSPP7 2| 8 2| 8 2| 6 3| 7 2| 8 3| 7 4| 7 4| 6 5| 6 75th percentile wnd(kts)
WSPP9 3| 8 3| 9 3| 6 4| 8 3| 8 4| 8 6| 9 5| 8 6| 7 90th percentile wnd(kts)
W24P1 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 8 | 8 | 8 | 7 | 7 | 8 | 7 | 7 | 7 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 8 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 8 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 10 | 9 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 13 | 14 | 13 | 10 | 12 | 13 | 12 | 10 | 10 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 14 | 14 | 15 | 11 | 13 | 15 | 14 | 12 | 12 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 15 | 16 | 16 | 12 | 14 | 17 | 16 | 15 | 14 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 16 | 17 | 17 | 13 | 15 | 18 | 19 | 18 | 18 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 17 | 18 | 18 | 15 | 17 | 20 | 25 | 26 | 22 90th percentile 24hr wnd gust exceedance(kts)
Q24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr QPF(1/100in)
Q24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 0| 0| 0| 0| 13| 8| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 0| 0| 0| 0| 15| 77| 58| 17| 75th percentile 24hr QPF(1/100in)
Q24P9 | 7| 0| 0| 0| 33| 133| 130| 62| 90th percentile 24hr QPF(1/100in)
S24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr snow accum(1/10in)
S24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr snow accum(1/10in)
S24P5 | 0| 0| 0| 0| 0| 0| 0| 0| 50th percentile 24hr snow accum(1/10in)
S24P7 | 0| 0| 0| 0| 0| 0| 0| 0| 75th percentile 24hr snow accum(1/10in)
S24P9 | 0| 0| 0| 0| 0| 0| 0| 0| 90th percentile 24hr snow accum(1/10in)
I24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr ice accum(1/100in)
I24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr ice accum(1/100in)
I24P5 | 0| 0| 0| 0| 0| 0| 0| 0| 50th percentile 24hr ice accum(1/100in)
I24P7 | 0| 0| 0| 0| 0| 0| 0| 0| 75th percentile 24hr ice accum(1/100in)
I24P9 | 0| 0| 0| 0| 0| 0| 0| 0| 90th percentile 24hr ice accum(1/100in)
SLPP1 018|014 018|015 018|011 012|008 012|010 015|012 014|013 014|012 014|012 10th percentile MSLP(mb)
SLPP2 018|014 019|016 019|013 013|009 014|012 016|014 017|015 016|014 015|013 25th percentile MSLP(mb)
SLPP5 018|015 019|017 020|014 014|010 015|013 018|016 020|017 018|016 018|015 50th percentile MSLP(mb)
SLPP7 019|015 020|018 021|016 016|011 016|014 019|018 021|019 021|018 020|017 75th percentile MSLP(mb)
SLPP9 019|016 020|019 022|018 017|013 017|015 020|020 023|021 022|020 022|019 90th percentile MSLP(mb)