Frost depth map michigan

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.

Frost depth map michigan. Midland Texas Freeze DataAnnual Last and First Freeze 1930-2021Annual Growing Season 1931-2022. Light Freeze: 29 F to 32 F -- tender plants killed, with little destructive effect on other vegetation. t o fruit blossoms,tender and semi-hardy plants. Severe Freeze: 24 F and less -- heavy damage to most plants.

Section R. 408.30449 - Frost protection. Rule 449. Section 1809.5 of the code is amended to read as follows: 1809.5. Frost protection. Except where otherwise protected from frost, foundation walls, piers, and other permanent supports of buildings and structures shall be protected from frost by at least 1 of the following methods: (1) Extending not less than 42 inches (1 067 mm) below finish grade.

For most of this winter, the frost depth has run in the neighborhood of 10 to 20 inches across Illinois with a few sites going deeper. Here is a screenshot of this morning’s map. While it doesn’t work on the screen shot, you can mouse-over the points on the map on the website and see the individual reports. Finally, Wayne Wendland, the ...The marine chart shows depth and hydrology of Cass Lake on the map, which is located in the Michigan state (Oakland). Coordinates: 42.60758936, -83.36558757. 1282 surface area ( acres ) 123 max. depth ( ft ) Cass Lake (MI) nautical chart on depth map. Coordinates: 42.60758936, -83.36558757. Free marine navigation, important information about ...Sep 20. Sep 23. Sep 25. Sep 28. Sep 30. Oct 2. Oct 5. Oct 8. Now that you know your frost dates, use our Garden Planting Calendar for Flint, Michigan to know when to sow and transplant your various vegetable plants!Great Plains Satellite. - Pacific Northwest Satellite. - Cent. West Coast Satellite. - Southwest Satellite. Kalkaska, MI 49646 Weather. Michigan Snow Forecast. 49646 Area Snow Depth Reports. (most recent in last 48 hours)Hardy Dam Pond nautical chart. The marine chart shows depth and hydrology of Hardy Dam Pond on the map, which is located in the Michigan state (Newaygo, Mecosta). Coordinates: 43.5262, -85.5735. 4000 surface area ( acres ) 105 max. depth ( ft ) Hardy Dam Pond (MI) nautical chart on depth map. Coordinates: 43.5262, -85.5735.4-1. Frost-area soil support indices for flexible pavement design. A-1. Summary of frost-susceptibility tests on natural soils - open system nominal load pressure 0.5 psi. A-2. Summary of supplementary frost-susceptibility tests on natural soils - open system nominal surcharge pressure 0.5 psi. A-3. Summary of frost-susceptibility tests onFrost Depth Map. A frost depth map is a useful tool to give you a rough idea of how deep you need to dig into the soil to get to where the ground rarely freezes. Often, you’ll see …

Deck Footing Frost Depth Map. Frost level can vary by inches or feet depending on climate and geography, so there isn’t a one-size-fits-all map. ... For example, Idaho’s is 31”, Maine 74”, Michigan 55”, Montana 61”, New York 50”, and Wyoming’s is 56”. Beware the average, though, and check with the local building department. Footing Depth for …The average frost line depth in southern Pennsylvania is 36 inches. The frost line (also referred to as frost depth or freezing depth) is the average depth in which the ground water in soil usually freezes. Building codes in some states take into account the frost line depth because, during freezing conditions, the frost in the ground can swell ...R403.1.4Minimum depth. R403.1.4. Minimum depth. All exterior footings and foundation systems shall extend 42 inches (1067 mm) below actual grade. Where applicable, the depth of the footings shall also conform to Section R403.1.4.1 of the code. Exception: Upon evidence of the existence of any of the following conditions, the building official ...Weathering Frost Line Depth Termite Required 42 in. Table R301.2(1) (Continued) Climatic and Geographic Design Criteria IRC adoption: jurisdiction completes table with data applicable to the jurisdiction -for example: 2018 IRC Essentials Negligible or Moderate or Severe Yes or No Workbook Page 39 Yes or No. Winter Design Temp Flood Hazards AirPORT HURON, MI. 590'. Apr 25. Oct 30. 187 days. Last and first frost dates are 30% probability. Calculated using 1991-2020 Climate Normals from NOAA.

It does not have anything to do with the height of the deck off the ground. It does with the dimensions of the posts, 6X6 vs. 4X4s.. The depth of the frost line has to do with how deep the posts go. In Michigan, I suspect it would be quite deep, maybe 4 feet down. -Rhode Island Frost Depth Map. Figure 1609 (B) from the SBC-1 (2013) RI State Building Code.How deep is the frost line for footers in Michigan? I want to put in a small shed in the back yard. 200 square feet large. Where at in Michigan ... big state running North/South. I'm sure up North it's going to be a bit deeper than down at the bottom of the lakes.e.g. 48103 snow. Michigan Snow Forecast. Michigan 24 hr New Snow Accumulation Analysis. U.S. Snow Depth. SELECT BOX EXAMPLES. for LOCAL WEATHER: additional OPTIONS: City, ST -or- ZIP code -or- ST.

Kevin davis mom.

Updated: Sep 14, 2023 / 01:27 PM EDT. The map below showed the Frost Advisory that was in effect for much of Northern Lower Michigan and part of Upper Michigan. The Advisory covered inland areas ...Weathering Frost Line Depth Termite Required 42 in. Table R301.2(1) (Continued) Climatic and Geographic Design Criteria IRC adoption: jurisdiction completes table with data applicable to the jurisdiction -for example: 2018 IRC Essentials Negligible or Moderate or Severe Yes or No Workbook Page 39 Yes or No. Winter Design Temp Flood Hazards Airmiddle (2 Mb), bottom (1.3Mb) Bathymetry of Lake Michigan has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more accessible to the public. The project is a cooperative effort between investigators at the NOAA National Centers for Environmental Information (NCEI) and ...Updated: Sep 14, 2023 / 01:27 PM EDT. The map below showed the Frost Advisory that was in effect for much of Northern Lower Michigan and part of Upper Michigan. The Advisory covered inland areas ...Upper Michigan Snow Depth. This map is created using observed snow depth from National Weather Service trained observers, satellite information and aerial snow surveys. This map is a product of the National Operational Hydrologic Remote Sensing office located in Chanhassen, MN. Note: Snow depth values may be derived from yesterdays reports ...

In the continental US, frost depth can range from region to region. The lowest is 0 feet, where the ground never freezes (think southern California) to 8’ deep (think northern Minnesota). Frost-proof hydrants are used in locations where the ground freezes. This ensure that hydrants can be used in the dead of winter in the toughest of conditions.Find your Michigan zone with Gilmour's Interactive Planting Zone Map. Remember that any plant rated for the Michigan planting zone you are in or lower will be able to survive winter in the zone it is planted. For example, if planting in zone 4a, it is fine to plant anything rated from zone 1 through zone 4. Many plants and vegetables do very ...An FPSF incorporates strategically placed insulation to raise the frost depth around a building, which allows for foundation depths as shallow as 16 inches even in the most severe climates (see Figure 1). ... AFI data and maps have been calculated using temperature data from the 1951-1980 and 1981-2010 Climate Normals. Cautionary Note When ...I have seen many, many threads about the history of the coney island sauce for hot dogs that originated in the Detroit area and are served as “Michigans” in New York state and part...You have a small 20% chance of getting 32° by October 9. There is a 50% chance of being hit by a 32° frost starting around October 17. You have a 80% chance of seeing 32° by October 26. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.February 23, 2023. LANSING, Mich. ­- The Michigan Department of Transportation (MDOT) continues to adjust annual spring weight restriction areas in an annual move to protect roads. Effective 6 a.m. Friday, Feb. 24, weight restrictions will be imposed and enforced on all state trunkline highways within the following area of Michigan: Highways ...Michigan is one of the fastest growing states in terms of solar adoption. Check out this review of the best solar companies in Michigan to learn more. Expert Advice On Improving Yo...ArcGIS DashboardsAnn Arbor, Michigan is one of the best places to live in the U.S. in 2022 for forward-thinking families and young professionals. Becoming a homeowner is closer than you think with ...Analysis for Oregon (including the ground snow load maps) published by the Structural Engineers Association of Oregon, December 2007. b. The values in this column were calculated using Exposure C. ... The frost depth below 2,500 feet in Jackson and Josephine Counties is 12 inches. j. Umatilla County north of 45.5° and east of 118.5° is at 25 ...Frost depth analysis showed that maximum frost depths vary from 110.4 cm to 179.1 cm. Figure 3. Lithuania frost depth map based on road weather stations data (Vaitkus et al. 2016) ...Older maps can be seen on our old snow depth map page. Also see the ranking maps explained. 2023-2024 April 11, 2024 April 4, 2024 March 28, 2024 March 21, 2024 March 14, 2024 March 7, 2024 February 29, 2024 February 22, 2024 February 15, 2024 February 8, 2024 February 1, 2024 January 25, 2024 January 18, 2024

Depth Map of Frost Pond T3R11, Maine..... Below you will find a depth map of Frost Pond. Many people enjoy looking at a depth map before heading out fishing on a new body of water. Not a bad idea at all! Frost Pond Camps offers outdoor adventures at our cabin in Maine, ME. Visit us for your fishing, hunting, or hiking, vacation.

January 30, 2024. LANSING, Mich. ­- The Michigan Department of Transportation (MDOT) and local agencies are enacting spring weight restrictions, an annual move to protect roads. Effective 6 a.m. Friday, Feb. 2, weight restrictions will be imposed and enforced on all state trunkline highways in the entire state of Michigan.A. Maximum Frost Penetration Depth. The bottom of footings shall extend at least to the depth indicated on the map on page H-4. B. Alternate Seasonal Wetting and Drying. This is especially important with ex-pansive soils. If expansive soils exist, consult a geotechnical engineer to obtain required foot-ing depth. C. Footing Depth. The footings ...About Frost Maps. Plantmaps maintains Frost data and maps for many regions on the earth. We've created Average First Frost Dates, Average Last Frost Dates and Average Number of days with Frost maps for most US States and Candian Provinces. Plantmaps also created maps for many countries around the world that are in latitudes where frost occurs.Description. The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones. A broadband internet connection is ...I have seen many, many threads about the history of the coney island sauce for hot dogs that originated in the Detroit area and are served as “Michigans” in New York state and part...Download scientific diagram | USGS Seismic Hazard Map Overlaying the Frost Depth Contours in Figure 1 from publication: AN ASSESSMENT OF BROAD IMPACT OF SEASONALLY FROZEN SOIL ON SEISMIC RESPONSE ...Houghton Lake nautical chart on depth map. Coordinates: 44.34200987, -84.720817. Free marine navigation, important information about the hydrography of Houghton Lake ... The marine chart shows depth and hydrology of Houghton Lake on the map, which is located in the Michigan state (Roscommon). Coordinates: 44.34200987, -84.720817. 20044 surface ...A frost protected shallow foundation (FPSF) is a practical alternative to deeper, more-costly foundations in cold regions with seasonal ground freezing and the potential for frost heave. An FPSF incorporates strategically placed insulation to raise the frost depth around a building, which allows for foundation depths as shallow as 16 inches ...

Tinseltown cinemark boardman.

Culberson funeral home hagerstown obituaries.

Frost Depth Chart. A frost depth map exists a userful tool to supply you a roughen idea of how in-depth you need to jab toward the soil to get go where one grounded rarely freezes. Often, you’ll see contour lines for a frost-depth map where any point along that line represents the frost default in those towns and townships where the line crosses. Want to know when to expect your last frost of the spring, or the first frost of the fall? Enter your zip code (or City, State) below and we'll tell you what we know. Our information is taken directly from the National Weather Service and depending on the location of the reporting station for your zip code, the results may vary. Popular Plants.Here is a step-by-step guide on how to navigate Michigan frost laws: Step 1: Know When Frost Laws Apply. Michigan's frost laws typically take effect between March 1st and May 31st each year, but this timeframe can vary based on weather conditions. During this period, weight restrictions are placed on all commercial vehicles traveling on ...R403.3.1.1 Attachment to Unheated Slab-on-Ground Structure. Vertical wall insulation and horizontal insulation of frost-protected shallow foundations that adjoin a slab-on-ground foundation that does not have a monthly mean temperature maintained at not less than 64°F (18°C) shall be in accordance with Figure R403.3 (3) and Table R403.3 (1 ...What is the greatest depth in feet in the Great Lakes? Lake Michigan averages 279 feet deep, and is 925 feet at its deepest point. It is approximately 118 miles wide and 307 miles long and is the ...Frost Depth Map - Missouri Public Service Commission. 704444703636363612 15 20 25 ColumbiaKansas CitySt. LouisSt. JosephSpring eldFrost Depth Map Note: Some local jurisdictions may require the footing(s) to be at a greater Depth than what is required by the Depth Map North of Hwy. 36 = 25 Between I-70 and Hwy. 36 = 20 Between I-44 and I-70 = 15 South of I-44 = 12There are several types of interest bearing savings accounts designed for minors. In Michigan, many financial institutions offer youth savings accounts that also include an ATM car...Torch Lake nautical chart. The marine chart shows depth and hydrology of Torch Lake on the map, which is located in the Michigan state (Antrim, Kalkaska). Coordinates: 44.9782, -85.3044. — surface area ( - ) 282 max. depth ( ft ) Torch Lake (Antrim, MI) nautical chart on depth map. Coordinates: 44.9782, -85.3044. Free marine navigation ...Back To Map Wyoming Extreme Frost Line Penetration (in inches) State Average Frost Depth: 56″ Source: U.S. Department of Commerce, City of Rock Springs, City of LaramieThe marine chart shows depth and hydrology of Mullett Lake on the map, which is located in the Michigan state (Cheboygan). Coordinates: 45.5078, -84.5222. 17360 surface area ( acres ) 120 max. depth ( ft ) To depth map. To fishing map. Go back. Mullett Lake (Cheboygan, MI) nautical chart on depth map. Coordinates: 45.5078, -84.5222. ….

With a transparent cabinet door, Ikea's great Dioder LED lights, and a little ingenuity, you can end up with a huge flat wall light on the cheap. With a transparent cabinet door, I...The depth to the water table can change (rise or fall) depending on the time of year. During the late winter and spring when accumulated snow starts to melt and spring rainfall is plentiful, water on the surface infiltrates into the ground and the water table rises. When water-loving plants start to grow again in the spring and precipitation gives way to hot, dry summers, the water table falls ...Published: Mar. 11, 2021 at 4:44 PM PST. UPPER PENINSULA, Mich. (WLUC) - Westerly winds howled more than 40 mph at times Thursday -- as if they were blowing away a winter season in the U.P. marked ...frost depth msbc rules 1303.1600 kittson roseau lake of the woods koochiching itasca marshall morrison meeker mahnomen wright benton mille lacs kanabec pennington red lake polk norman wilkin otter tail ... frost depth map created date: 3/9/2007 2:13:25 pm ... Frost Lines by State 2024. The frost line, also referred to as the frost depth, is the depth at which the groundwater in soil is expected to freeze. Frost lines depend on an area's climatic conditions, including the heat transfer properties of materials in the ground (such as soil) and nearby heat sources. Frost lines vary by latitude and are ... Welcome to the National Water and Climate Center's Snow and Water Interactive Map, a groundbreaking tool designed to provide farmers, researchers, policymakers, and water management professionals with up-to-the-minute snow survey data and water supply forecasting.Quaternary geology or "surficial geology" refers to the study of landforms and the unconsolidated sediments that lie beneath them. The majority of the unconsolidated sediments found at the land surface (or on top of bedrock) in Michigan were deposited during the late Wisconsin glaciation, 21,000 to 13,600 years ago. In 1998 Michigan …The National Operational Hydrologic Remote Sensing Center provides comprehensive snow observations, analyses, data sets and map products for the Nation. NOHRSC products and services support a wide variety of government and private-sector applications in water resource management, disaster emergency preparedness, weather and flood forecasting ... Frost depth map michigan, Upper Michigan Snow Depth. This map is created using observed snow depth from National Weather Service trained observers, satellite information and aerial snow surveys. This map is a product of the National Operational Hydrologic Remote Sensing office located in Chanhassen, MN. Note: Snow depth values may be derived from yesterdays reports ..., Section R. 408.30449 - Frost protection. Rule 449. Section 1809.5 of the code is amended to read as follows: 1809.5. Frost protection. Except where otherwise protected from frost, foundation walls, piers, and other permanent supports of buildings and structures shall be protected from frost by at least 1 of the following methods: (1) Extending not less than 42 inches (1 067 mm) below finish grade., Abstract The air-freezing index (AFI) is a common metric for determining the freezing severity of the winter season and estimating frost depth for midlatitude regions, which is useful for determining the depth of shallow foundation construction. AFI values represent the seasonal magnitude and duration of below-freezing air temperature. Departures of the daily mean temperature above or below 0 ..., Upper Michigan Snow Depth. This map is created using observed snow depth from National Weather Service trained observers, satellite information and aerial snow surveys. This map is a product of the National Operational Hydrologic Remote Sensing office located in Chanhassen, MN. Note: Snow depth values may be derived from yesterdays reports ... , NCRFC Data Reporting Sites. To view the NWSLI defined sites in the NCRFC area, click on the state or province. of interest. A PDF with the information will be opened in a new window. Be patient. as some of the files are quite large., frost depth msbc rules 1303.1600 kittson roseau lake of the woods koochiching itasca marshall morrison meeker mahnomen wright benton mille lacs kanabec pennington red lake polk norman wilkin otter tail ... frost depth map created date: 3/9/2007 2:13:25 pm ..., The advisory is in effect from 2-7 a.m. Thursday and stretches from west and southeast Michigan to the northern part of the state. "The clear sky, weak gradient and very dry ambient environment ..., The 2010 California Residential Code has a beautiful table (TABLE R301.2(1)) to list the frost lines; however, that is empty. The Santa Cruz County Municipal Code states "Frost line depth = 12 inches below undisturbed soil". Search for "frost line"., 1. The USDA Hardiness Zone Method. To find the average frost dates for your region, you first need to determine your hardiness zone or planting zone. You can do this by using our planting zone map tool. Click on your state to zoom in or enter your zip code to find the zone number of your specific area. Frost dates can vary widely within each ..., February 23, 2023. LANSING, Mich. ­- The Michigan Department of Transportation (MDOT) continues to adjust annual spring weight restriction areas in an annual move to protect roads. Effective 6 a.m. Friday, Feb. 24, weight restrictions will be imposed and enforced on all state trunkline highways within the following area of Michigan: Highways ..., Each state's frost line depth is shown on this map. The frost lines are listed on a table in the 2010 California Residential Code (TABLE R301.2(1)), but that is empty. ... This area, as well as the rest of Michigan, has a frost depth of 42″. Footings must be at least 42″ deep, measuring from the finish grade to the bottom of the footing. ..., Explore Michigan with this large detailed map, showing cities, towns, highways, and natural attractions. Ontheworldmap.com offers more maps of other regions., To design engineering structures in Turkey, a traditional frost depth map is used, ... Predictive modeling of freezing and thawing of frost-susceptible soils. Michigan. Dept. of Transportation. Office of Research Administration. Berg RL (1997) Calculating maximum frost depths at Mn/ROAD: winters 1993-94, 1994-95 and 1995-96. Minnesota. Dept. of ..., Minnesota, US and interstate highways not shown in the legend are rated at 10 tons. Spring load restriction dates for each zone are announced at least three calendar days in advance at Seasonal Load Limit dates or from a recording at 651-366-5400 or toll free at 1-800-723-6543. Dual-layer map of restricted routes (PDF, 18 MB), Great Plains Satellite. - Pacific Northwest Satellite. - Cent. West Coast Satellite. - Southwest Satellite. Hancock, MI 49930 Weather. Michigan Snow Forecast. 49930 Area Snow Depth Reports. (most recent in last 48 hours), Peakfinder Panorama GeoHack Links CalTopo MyTopo Bing Maps Google Maps Open Street Map: Prominence: Key Col Page (Detailed prominence information) Clean Prominence: 1120 ft/341 m Optimistic Prominence: 1160 ft/353 m Key Col: Hunt Hollow 1160 ft/354 m: Isolation: Isolation Page (Detailed isolation information) Distance: 34.27 …, The frost depth varies by region. In frigid Minnesota, the frost depth is 42 in., whereas a warmer state like Missouri may have a frost depth of only 1 ft. When you contact your local building department to get your building permit, ask what the frost depth requirement is and the required size and shape of the footings. Then dig the footing ..., Current through Vol. 24-06, April 15, 2024. Section R. 408.30522 - Minimum depth. Rule 522. Section R403.1.4 of the code is amended to read as follows: R403.1.4. Minimum depth. All exterior footings and foundation systems shall extend 42 inches below actual grade. Where applicable, the depth of the footings shall also conform to section …, A frost protected shallow foundation (FPSF) is a practical alternative to deeper, more-costly foundations in cold regions with seasonal ground freezing and the potential for frost heave. An FPSF incorporates strategically placed insulation to raise the frost depth around a building, which allows for foundation depths as shallow as 16 inches ..., WalletHub selected 2023's best insurance agents in Michigan based on user reviews. Compare and find the best insurance agent of 2023. WalletHub makes it easy to find the best Insur..., This map is from the International Snowing additionally Ice Data center and shows the frost line map across the Uniting States. Note how it moves down from 72-inch depth to a 6-inch depth. What is of minimum deep a water line must be the zone 6 and pure medium to track sand? - GreenBuildingAdvisor, To view daily maps from previous years, click the Archive button to the right of your format of interest. Note that images are numbered with the year followed by the Julian Date, essentially counting the number of days of the year from January 1 (Julian date = 001) to December 31 (Julian date = 365). Right-click any image to download it., The Frost and Freeze map shows where frost cant be expected and where temperature are forecast to fall below 32 degrees F. Frost is a solid deposition of water vapor from saturated air. It is ... , Explore Michigan with this large detailed map, showing cities, towns, highways, and natural attractions. Ontheworldmap.com offers more maps of other regions., penetration. The depth of frost penetration has empirically been determined by using the AFI in conjunction with the soil type and surface soil cover (Linell and Lobacz, 1980). A frost-protected shallow foundation (FPSF) is another method used to protect structural foundations from frost heave (Farouki 1992; Morris 1988). FPSF incorporates the ..., This dataset includes frost tube data from 37 stations in the Upper Midwest (Minnesota, North Dakota, Wisconsin), USA. The responsible agency was the St. Paul District of the U.S. Army Corps of Engineers. These data were collected during 1971-1981 (no data for 1976/77) by cooperative observers who gathered the data for use in their spring run ..., Frost depth is an important factor that affects the design of various transportation infrastructures including pavements, retaining structures, bridge foundations, utility lines, and so ... MDOT. Then, the thaw depth data measured in the state of Michigan were used to assess Nixon and McRoberts thaw depth predictions model. Since the model did ..., A more detailed map of current frost depth in real-time is available from the National Weather Service. However, you should always consult your local building code jurisdiction for exact requirements before digging. Subsurface Water. Poorly draining, fine grain soil is susceptible to frost heave. We can’t always choose the soil in which we dig …, Detailed Maps of Michigan. Large detailed map of Michigan with cities and towns. 5460x5661px / 15.1 Mb Go to Map. Michigan county map. 1500x1649px / 346 Kb Go to Map. Michigan road map. 2570x3281px / 4.74 Mb Go to Map. Road map of Michigan with cities. 2366x2236px / 1.09 Mb Go to Map., The "Map" showed a frost depth of 3.5 m. Why take a footing down 4 m when the soil was not frost susceptible and the groundwater level was so low. Didn't make sense - so the foundations were put at about 1.2 m depth. No issues that I have heard about and this was some 40 years ago., Protect plants from frost by covering them with winter blankets, tarps or frost fabric. Photo by Rebecca Finneran, MSU Extension. Last week, many Michigan locations saw frost and freeze warnings as temperatures dipped into the upper 20s to low 30s degrees Fahrenheit throughout the state on an almost nightly basis (Table 1)., Short answer: Michigan Frost Law Map Michigan has a frost law that restricts heavy vehicles during the spring thaw period. The Department of Transportation provides an online map indicating which routes are under restrictions, and when those restrictions begin and end each year. It is important for commercial drivers to be aware of these regulations, Frost Depth Readings. The SWROC has two frost tubes which will be read weekly (usually on Mondays) throughout the winter season. One tube is located under bare ground and the other is located under sod.