PORT ALCAN, AK - COOP Alaska station 507513

507513 - PORT ALCAN, Alaska

Latitude
62° 37´N

Longitude
141° 0´W

Elevation
589 meters

Alaska

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10 nearest COOP Alaska stations

23 mi	NW :	NORTHWAY AIRPORT, AK
39 mi	SW :	CHISANA, AK
65 mi	W :	NABESNA, AK
71 mi	W :	CROOKED TEAPOT, AK
72 mi	W :	MINERAL LAKES, AK
82 mi	W :	SLANA AIRPORT, AK
83 mi	W :	SLANA, AK
83 mi	W :	SLANA, AK
85 mi	NW :	TOK D O T, AK
86 mi	NW :	TOK, AK

Weather variables Help
Click a weather variable name to jump down to those statistics.

	Total observations	%	NDJFM observations	%
TMAX	3747	20.5%	1632	21.6%
TMIN	3761	20.6%	1634	21.6%
PRCP	3341	18.3%	1378	18.2%
SNOW	3523	19.3%	1380	18.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1632 by year	5.5°F	17.6°F		overall	NAM	PNA	CTI

TMAX and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme high events Days with TMAX>=33°F	110	0.47	33	11	3.0*	map	table
Extreme low events Days with TMAX<=-21°F	112	0.81	40	10	4.0*	map	table

TMAX and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme high events Days with TMAX>=33°F	110	0.74	36	4	9.0*	map	table
Extreme low events Days with TMAX<=-21°F	112	-0.65	3	36	12.0*	map	table

TMAX and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme high events Days with TMAX>=33°F	110	37	1	37.0*	map	table
Extreme low events Days with TMAX<=-21°F	112	11	16	1.5	map	table

TMAX under 2 index extremes Help

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1634 by year	-11.8°F	15.3°F		overall	NAM	PNA	CTI

TMIN and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme low events Days with TMIN<=-37°F	119	0.61	37	14	2.6*	map	table
Extreme high events Days with TMIN>=9°F	124	0.52	27	5	5.4*	map	table

TMIN and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme low events Days with TMIN<=-37°F	119	-0.56	7	33	4.7*	map	table
Extreme high events Days with TMIN>=9°F	124	0.50	32	8	4.0*	map	table

TMIN and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme low events Days with TMIN<=-37°F	119	14	14	1.0	map	table
Extreme high events Days with TMIN>=9°F	124	37	12	3.1*	map	table

TMIN under 2 index extremes Help

Station table

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	1378 by year	0.01"		overall	NAM	PNA	CTI

PRCP and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with PRCP>0.00"	129	0.08"	0.57	28	8	3.5*	map	table
Extreme events Days with PRCP>0.10"	25	0.23"	0.82	6	0	Inf	map	table

PRCP and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with PRCP>0.00"	129	0.08"	-0.19	16	29	1.8	map	table
Extreme events Days with PRCP>0.10"	25	0.23"	-0.37	2	7	3.5	map	table

PRCP and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with PRCP>0.00"	129	0.08"	30	27	1.1	map	table
Extreme events Days with PRCP>0.10"	25	0.23"	6	2	3.0	map	table

PRCP under 2 index extremes Help

Station table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	1380 by year	0.15"		overall	NAM	PNA	CTI

SNOW and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with SNOW>0.0"	133	1.57"	0.60	30	8	3.8*	map	table
Extreme events Days with SNOW>2.0"	25	4.00"	0.39	4	2	2.0	map	table

SNOW and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with SNOW>0.0"	133	1.57"	-0.14	17	27	1.6	map	table
Extreme events Days with SNOW>2.0"	25	4.00"	-0.18	3	5	1.7	map	table

SNOW and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with SNOW>0.0"	133	1.57"	31	28	1.1	map	table
Extreme events Days with SNOW>2.0"	25	4.00"	6	3	2.0	map	table

SNOW under 2 index extremes Help

Station table

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