CoCoRaHS Ice Accretion
Document ice accretion or freezing rain with optional photo upload! (Photos will NOT be public)
What do you want to do?
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Document the base thickness of my dowel BEFORE an ice event
Report ice thickness measured on my dowel AFTER an ice event
Report ice thickness measured on something else (branch or other flat object)
I only have photos and no measurements
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Enter your CoCoRaHS Station Number
ex. CO-LR-273
Address *will not be displayed publically* (leave blank if CoCoRaHS ID is provided above)
Street Address
Street Address Line 2
City
State / Province
Postal / Zip Code
Date of Observation
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Month
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Day
Year
Date
Time of Observation
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Hour Minutes
AM
PM
AM/PM Option
Document your dowel before an ice accretion event
Refer to training guide for setup instructions
What is your measuring device?
Caliper/Micrometer (100ths of an inch)
Tape measure (with 8ths and/or 16ths)
Ruler (with 8ths and/or 16ths)
Ruler (with 10ths of an inch)
Metric (mm) (specify caliper, tape measure or ruler in notes below)
Record the base thickness of the dowel with NO accumulation (in 1/10 inch, i.e., 0.7). See image below for example
Enter this value once at the beginning of the season as the base thickness of your dowel.
Additional notes about your dowel or site here
There is another section below for notes related to any photos you submit
Select an Ice Accretion Impact Category (1-8)
Choose the best category based on the impacts you experience
Select an Impact Category
*
Please Select
0 - No ice or a trace
1 - Enough to be annoying/need for scraping off your car. Looks pretty on bushes, shrubs. Dangerous to walk or drive.
2 - Shrubs and other non-native shrubbery weighed down, trees manage ok
3 - Small tree branches start to bend
4 - Small and medium branches bend, a few small branches may fail
5 - Birch trees are starting to bend, minor branch damage to weak trees
6 - Birch trees sag moderately, small and large limbs start to break, ~5-10% branch loss
7 - Birch trees bend nearly completely, ~10-20% branch loss on small and large limbs
8 - Moderate to significant tree damage, most trees have some damage
Descriptions found in the dropdown
Documenting your one-dimensional thickness after an ice accretion event
Please leave comments about what you measured
Record the one-dimensional HORIZONTAL thickness after an ice event (in 1/10's of an inch, i.e., 1.2). See images below for example
This is the TOTAL thickness of the dowel PLUS any ice. Please leave notes in the comments below.
Record the one-dimensional VERTICAL thickness after an ice event (in 1/10's of an inch. See images below for example
This is the TOTAL thickness of the dowel PLUS any ice. Please leave notes in the comments below.
Enter any additional notes about the event or your measurement here
There is another section below for notes related to any photos you submit
Record the one-dimensional thickness after an ice event on a branch or other flat object (in 1/10's of an inch). See images below for example
This is the TOTAL thickness of the branch PLUS any ice. If you are not using a branch, please leave notes in the comments below.
Enter any additional notes about the event or your measurement here
There is another section below for notes related to any photos you submit
Submit a Photo!
Photos will not be publicly shared but may be provided (with credit) to National Weather Service employees or other users of the data.
Take a photo or add one from your phone library (up to four photos)
Browse Files
Drag and drop files here
Choose a file
Please describe the direction the dowel (or branch) is facing for each photo submitted (use the box below if necessary)
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Please provide any additional information about the object you used to measure, notes about your photos, or any impacts you experienced such as damages or outages.
Ex. "Cars damaged from broken tree limbs.", or "My power was out for 30 hours after a tree limb damaged the lines."
Click below to submit your report. You will be able to submit another report using a link on the confirmation page.
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