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Grand Marais Cook County Airport, Minnesota

Small airport in Cook County, Minnesota

Air quality

The air at Grand Marais Cook County Airport

Index 26, good, led by ozone. Read at 4 PM from its reporting area, Minnesota Arrowhead (MN), 12 miles off.

26Good
  • Fine particles (PM2.5)4Good-
  • Ozone26Good-

The days ahead

Good each day through Wed Oct 21, led by ozone. Yesterday measured 18, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 1 PM.

FriSatSun

Precipitation

What has fallen at Grand Marais Cook County Airport

0.31 in in the last 24 hours, 0.39 in over the last 3 days, to Fri 4 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.31in
Last 3 days
0.39in

Visibility

How far you can see at Grand Marais Cook County Airport, the next 45 hours

Visibility stays 8 miles or more through Sun 1 PM, lowest 8 miles Sun 8 AM.

FriSatSun

Airfield

Code
CKC
ICAO
KCKC
IATA
GRM
Field elevation
1,799 ft
Serves
Grand Marais
Kind
Small airport
Scheduled service
No
Its own instrument
CKC
Wind now
From 320° at 14 mph, read 16 Oct, 16:35

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
10 / 285,002 ft100 ftAsphalt95° / 275°10 mph head, on 2810 mph from the right
10282,000 ftN320° 14 mph
Runways from their surveyed ends, north up, lengths and positions to scale; the rose in the corner is the wind now.

Measured here

What the airfield's own instrument measured, the last 24 hours

Every hour from Grand Marais/Coo (CKC), Grand Marais Cook County Airport's own instrument, measure by measure, on the field's own clock.

Temperature

41 F at 5 PM; 43 F at its warmest, 3 PM, and 36 F at its coolest, 7 AM.

Now
41F
5 PM
Highest
43F
3 PM
Lowest
36F
7 AM
Temperature and Dew point at Grand Marais/Coo, temperature from 35.6 to 43.4, the latest 41.0; dew point from 24.8 to 44.6, the latest 24.8, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF2025303540456 PM9 PMOct 163 AM6 AM9 AM12 PM3 PMFREEZINGTEMPERATUREDEW POINT

How it is measured: Stevenson screen and siting, Field Book FB-INS-009

Humidity and dew point

A dew point of 25 F, the air 52% saturated; the humidity ran from 48% at 3 PM to 100% at 6 PM Thursday.

Dew point now
25F
5 PM
Humidity now
52%
Humidity, range
48 to 100%
Relative humidity at Grand Marais/Coo, relative humidity from 48 to 100, the latest 52, in per cent.RELATIVE HUMIDITY%4060801006 PM9 PMOct 163 AM6 AM9 AM12 PM3 PM

How it is measured: Humidity variables, Field Book FB-WAT-002

Wind

9 mph from the northwest at 5 PM; at its strongest 20 mph, 5 AM, with a gust of 35 mph at 4 AM.

Now
9mph
from the northwest
Strongest
20mph
5 AM
Highest gust
35mph
4 AM
Wind and Gust at Grand Marais/Coo, wind from 2 to 20, the latest 9; gust from 21 to 35, the latest 22, in miles an hour.WIND AND GUSTmph0102030406 PM9 PMOct 163 AM6 AM9 AM12 PM3 PMWINDGUST
Wind direction at Grand Marais/Coo, wind direction from 10 to 360, the latest 320, in degrees.WIND DIRECTION°0901802703606 PM9 PMOct 163 AM6 AM9 AM12 PM3 PM

How it is measured: Coriolis as geometry, Field Book FB-ENG-008

Pressure

30.36 inHg at 5 PM, steady over 3 hours; 0.45 inHg higher than a day before.

Now
30.36inHg
5 PM
3 hours
+0.02inHg
steady
24 hours
+0.45inHg
Pressure, altimeter at Grand Marais/Coo, pressure, altimeter from 29.88 to 30.36, the latest 30.36, in inches of mercury.PRESSURE, ALTIMETERinHg29.8030.0030.2030.406 PM9 PMOct 163 AM6 AM9 AM12 PM3 PM

How it is measured: Hydrostatic balance, Field Book FB-ENG-003

Visibility

Down to 3 miles at 12 AM; 10 miles or more now.

Now
10+mi
Lowest
3mi
12 AM
Hours under a mile
0
Visibility at Grand Marais/Coo, visibility from 2.5 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5106 PM9 PMOct 163 AM6 AM9 AM12 PM3 PMLIFRIFRMVFRVFR

How it is measured: Fog types, Field Book FB-WAT-020

Cloud base

The lowest cloud base came down to 700 ft at 7 PM Thursday; a base was reported in 21 of the hours.

Lowest base now
-
Lowest in 24 hours
700ft
7 PM Thursday
Hours with a base reported
21
Lowest cloud base at Grand Marais/Coo, lowest cloud base from 700 to 4,000, the latest 3,900, in feet.LOWEST CLOUD BASEft01,0002,0003,0004,0006 PM9 PMOct 163 AM6 AM9 AM12 PM3 PMLIFRIFRMVFRVFR

How it is measured: Cloud classification, Field Book FB-SKY-001

Precipitation

None measured in the gauge in the last 24 hours.

Last 24 hours
0.00in
Wettest hour
-
Hours with some
0

How it is measured: ASOS, Field Book FB-INS-002

Grand Marais/Coo: every reading, the last 7 days, 30 days and the year, and how well it reports

What is measuring near here

The 5 instruments nearest Grand Marais Cook County Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.

measured now3 instruments

Grand Marais/CooCKC

At an airfield/0.0 mi away/1,798 ft/1 ft below here

temp, wind, gust, visibility, precip, pressure

Seagull RAWSSEAM5

A remote fire weather station/28.7 mi away/1,486 ft/313 ft below here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Grand Marais 2.3 NNEMN-CK-67

In a volunteer observer's own ground/4.0 mi away/1,526 ft/273 ft below here

precip, snowfall, snow depth

Grand MariasGMRM5

At a cooperative observer's station/7.4 mi away/587 ft/1,212 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Minnesota

22 places, each with its own forecast and its own instruments.

Near Grand Marais Cook County Airport

The nearest places, each with its own forecast and the instruments nearest it.

Near Grand Marais Cook County Airport