Winter Storm & Blizzard Plan
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February 2021: Extreme Cold, Snow, and Ice in the South Central U.S
NASA/NOAA NASA/NOAA FEBRUARY 2021: EXTREME COLD,SNOW, AND ICE IN THE SOUTH CENTRAL U.S. APRIL 2021 | DARRIAN BERTRAND AND SIMONE SPEIZER SUGGESTED CITATION Bertrand, D. and S. Speizer, 2021: February 2021: Extreme Cold, Snow, and Ice in the South Central U.S. Southern Climate Impacts Planning Program, 30 pp. http://www.southernclimate.org/documents/Feb2021ExtremeCold.pdf. TABLE OF CONTENTS 1 2 6 INTRODUCTION WEATHER RECORDS & PATTERN CLIMATOLOGY 15 19 ENERGY WATER 10 15 19 20 HEALTH INFRASTRUCTURE COMPARISON IMPACTS TO HISTORIC 21 22 EVENTS ECONOMY ENVIRONMENT 23 SOCIETY 24 25 26 LOCAL HAZARD SUMMARY REFERENCES MITIGATION SUCCESSES PAGE | 01 INTRODUCTION INTRODUCTION February 2021’s weather was a wild ride for many across the U.S. Many records were broken from a strong arctic blast of cold air that extended south of the Mexico border, and wintry precipitation covered much of the country. While the extent of the winter storm traversed coast to coast, this summary will cover the Southern Climate Impacts Planning Program (SCIPP) region of Oklahoma, Texas, Arkansas, and Louisiana (Fig. 1). We'll be diving into the weather pattern, records, the Figure 1. SCIPP Region context of this event relative to climatology, past historic events, impacts, and hazard mitigation successes. EVENTHIGHLIGHTS Extreme Cold Temperature and Snow: Nearly 3,000 long-term temperature records were broken/tied in February in the SCIPP region. All 120 OK Mesonet stations were below 0°F at the same time for the first time. Some areas were below freezing for nearly 2 weeks. This was the coldest event in the region in over 30 years. -
Coastal Hazards Primers
Coastal Hazards Primers Table of Contents Introduction ............................................................................................................................................................................. 2 Flooding .................................................................................................................................................................................... 2 Background ......................................................................................................................................................................... 2 Flood Mapping .................................................................................................................................................................... 2 Flood Management ........................................................................................................................................................... 2 Flood Mitigation .................................................................................................................................................................. 2 Flood Response and Recovery ............................................................................................................................................ 3 Wind ........................................................................................................................................................................................... 3 Background ........................................................................................................................................................................ -
PROTECT YOUR PROPERTY from STORM SURGE Owning a House Is One of the Most Important Investments Most People Make
PROTECT YOUR PROPERTY FROM STORM SURGE Owning a house is one of the most important investments most people make. Rent is a large expense for many households. We work hard to provide a home and a future for ourselves and our loved ones. If you live near the coast, where storm surge is possible, take the time to protect yourself, your family and your belongings. Storm surge is the most dangerous and destructive part of coastal flooding. It can turn a peaceful waterfront into a rushing wall of water that floods homes, erodes beaches and damages roadways. While you can’t prevent a storm surge, you can minimize damage to keep your home and those who live there safe. First, determine the Base Flood Elevation (BFE) for your home. The BFE is how high floodwater is likely to rise during a 1%-annual-chance event. BFEs are used to manage floodplains in your community. The regulations about BFEs could affect your home. To find your BFE, you can look up your address on the National Flood Hazard Layer. If you need help accessing or understanding your BFE, contact FEMA’s Flood Mapping and Insurance eXchange. You can send an email to FEMA-FMIX@ fema.dhs.gov or call 877 FEMA MAP (877-336-2627). Your local floodplain manager can help you find this information. Here’s how you can help protect your home from a storm surge. OUTSIDE YOUR HOME ELEVATE While it is an investment, elevating your SECURE Do you have a manufactured home and want flood insurance YOUR HOME home is one of the most effective ways MANUFACTURED from the National Flood Insurance Program? If so, your home to mitigate storm surge effects. -
February 2021 Historical Winter Storm Event South-Central Texas
Austin/San Antonio Weather Forecast Office WEATHER EVENT SUMMARY February 2021 Historical Winter Storm Event South-Central Texas 10-18 February 2021 A Snow-Covered Texas. GeoColor satellite image from the morning of 15 February, 2021. February 2021 South Central Texas Historical Winter Storm Event South-Central Texas Winter Storm Event February 10-18, 2021 Event Summary Overview An unprecedented and historical eight-day period of winter weather occurred between 10 February and 18 February across South-Central Texas. The first push of arctic air arrived in the area on 10 February, with the cold air dropping temperatures into the 20s and 30s across most of the area. The first of several frozen precipitation events occurred on the morning of 11 February where up to 0.75 inches of freezing rain accumulated on surfaces in Llano and Burnet Counties and 0.25-0.50 inches of freezing rain accumulated across the Austin metropolitan area with lesser amounts in portions of the Hill Country and New Braunfels area. For several days, the cold air mass remained in place across South-Central Texas, but a much colder air mass remained stationary across the Northern Plains. This record-breaking arctic air was able to finally move south into the region late on 14 February and into 15 February as a strong upper level low-pressure system moved through the Southern Plains. As this system moved through the region, snow began to fall and temperatures quickly fell into the single digits and teens. Most areas of South-Central Texas picked up at least an inch of snow with the highest amounts seen from Del Rio and Eagle Pass extending to the northeast into the Austin and San Antonio areas. -
How to Prepare for a Winter Storm
Hurricane Safety Tips The 2015 hurricane season will be one of the quietest seasons since the mid 20th century, according to Dr. Phillip J. Klotzbach, leader of tropical forecasting, from Colorado State University. The numbers: 7 named storms, 3 hurricanes, and 1 major hurricane (category 3 or higher). It appears quite likely that an El Nino of at least moderate strength will develop this summer and fall. The tropical and subtropical Atlantic is quite cool at present. He anticipates a below-average probability for major hurricanes making landfall along the United States coastline and in the Caribbean. Despite the forecast for below- average activity, coastal residents are reminded that it only takes one hurricane making landfall to make it an active season for them. People should prepare the same for every season, regardless of how much activity is predicted. Even though a below-average season is expected, it is worth noting that Hurricane Andrew, a category 5 storm that devastated Florida in 1992, occurred in an inconsequential year with only 7 storms for the season. For your information, a tropical storm has sustained winds of 39 mph; it becomes a hurricane when its winds reach 74 mph. The Atlantic hurricane season starts June 1and lasts until November 30. The following names will be used for named storms that form in the Atlantic Ocean in 2015. The first name to be used this season is Ana, followed by Bill, Claudette, Erika, Fred, Grace, Henri, Ida, Joaquin, Kate, Larry, Mindy, Nicholas, Odette, Peter, Rose, Sam, Teresa, Victor, and Wanda. What is a hurricane? A hurricane is a type of tropical cyclone, the general term for all circulating weather systems over tropical waters. -
The Winter Season December 1, 1982-February 28, 1983
CONTINENTAL SURVEY The Winter Season December 1, 1982--February 28, 1983 Abbreviations frequently used in Regional Reports ad.: adult, Am.: American, c.: central, C: Celsius, CBC: Reservoir, not Reservation,R.: River, S.P.: State Park, sp.: Christmas Bird Count, Cr.: Creek, Com.: Common, Co.: species,spp.: speciesplural, ssp.: subspecies,Twp.: Town- County, Cos.: Counties,et al.: and others,E.: Eastern(bird ship, W.: Western(bird name), W.M.A.: Wildlife Manage- name),Eur.: European,Eurasian, F: Fahrenheit,fide:reported ment Area, v.o.: various observers, N,S,W,E,: direction of by, F.&W.S.: Fish& Wildlife Service,Ft.: Fort, imm.: imma- motion, n., s., w., e.,: direction of location, >: more than, <: ture, 1.: lsland,Is.: Islands,Isles, Jct.: Junction,juv.: juvenile, fewerthan, +: approximately,or estimatednumber, c•: male, L.: Lake, m.ob.: manyobservers, Mt.: Mountain, Mts.: Moun- q?:female, 0: imm.or female,*: specimen,ph.: photographed, tains, N.F.: National Forest, N.M.: National Monument, ?: documented,ft: feet, mi: miles, m: meters,kin: kilometers, N.P.: National Park, N.W.R.: Nat'l Wildlife Refuge, N.: date with a + (e.g., Mar. 4+): recordedbeyond that date. Northern(bird name), Par.: Parish,Pen.: Peninsula,P.P.: Pro- Editorsmay also abbreviateoften-cited locations or organiza- vincial Park, Pt.: Point, not Port, Ref.: Refuge, Res.: tions. NORTHEASTERN MARITIME REGION /Richard S. Heil This wasthe year that winter largely passed us by in the Northeast. Decemberand early Januaryaveraged exceptionally mild and bare groundand open water were the rolerather than the exceptions.As a result,waterfowl and gullslingered in the northand inlandin good numbers,while passerinesapparently remained widely dispersed throughoutthe Region, rotbet than concentrating at feeders or in shel- teredthickets. -
Understanding Storm Surge
The Education Program at the New Jersey Sea Grant Consortium 22 Magruder Road, Fort Hancock, NJ 07732 (732) 872-1300 www.njseagrant.org UNDERSTANDING STORM SURGE OVERVIEW In this climate education module, students will gain an understanding of the term “storm surge” by exploring the meteorological principles that create storms and generate storm surges. Many basics of weather are discussed, including air pressure, air circulation, and the influence of the Coriolis effect on weather. TABLE OF Background……………………………………….......................1-4 CONTENTS Activity #1- Oceans of Pressure …......................................... 5-10 Activity #2- Windy Balloon ……………………….................... 11-13 Activity #3- Density Driven Currents ………………................ 14-18 Activity #4- Coriolis Effect……………………………………. 19-22 Activity #5- Pressure Driven Storms and Surge…………..... 23-25 Activity #6- Surge of the Storm ………................................. 26-34 How Meteorologists’ Measure and Predict Storm Surge…… 35-37 Why should you care about understanding storm surge? ...... 38-39 Storm Surge Watches and Warnings ………………….……. 40-42 NOAA’s Top 10 Tips for Being Ready for a Storm Surge…...... 43 References …............................................................................ 44 OBJECTIVES Following completion of this module, students will be able to: Define storm surge and the factors that influence it Learn how temperature affects air density and the formation of high and low pressure systems in the atmosphere Explore the effect of gravity on air in the atmosphere Discover the role of Earth’s rotation on global and localized wind patterns Examine the effects that air pressure has on storm surge levels Determine how storm surge affects coastal communities Explore the impact of shoreline shape and beach slope on storm surge GRADE LEVEL 5 – 12 The New Jersey Sea Grant Consortium (NJSGC) is an affiliation of colleges, universities and other groups dedicated to advancing knowledge and stewardship of New Jersey’s marine and coastal environment. -
ESSENTIALS of METEOROLOGY (7Th Ed.) GLOSSARY
ESSENTIALS OF METEOROLOGY (7th ed.) GLOSSARY Chapter 1 Aerosols Tiny suspended solid particles (dust, smoke, etc.) or liquid droplets that enter the atmosphere from either natural or human (anthropogenic) sources, such as the burning of fossil fuels. Sulfur-containing fossil fuels, such as coal, produce sulfate aerosols. Air density The ratio of the mass of a substance to the volume occupied by it. Air density is usually expressed as g/cm3 or kg/m3. Also See Density. Air pressure The pressure exerted by the mass of air above a given point, usually expressed in millibars (mb), inches of (atmospheric mercury (Hg) or in hectopascals (hPa). pressure) Atmosphere The envelope of gases that surround a planet and are held to it by the planet's gravitational attraction. The earth's atmosphere is mainly nitrogen and oxygen. Carbon dioxide (CO2) A colorless, odorless gas whose concentration is about 0.039 percent (390 ppm) in a volume of air near sea level. It is a selective absorber of infrared radiation and, consequently, it is important in the earth's atmospheric greenhouse effect. Solid CO2 is called dry ice. Climate The accumulation of daily and seasonal weather events over a long period of time. Front The transition zone between two distinct air masses. Hurricane A tropical cyclone having winds in excess of 64 knots (74 mi/hr). Ionosphere An electrified region of the upper atmosphere where fairly large concentrations of ions and free electrons exist. Lapse rate The rate at which an atmospheric variable (usually temperature) decreases with height. (See Environmental lapse rate.) Mesosphere The atmospheric layer between the stratosphere and the thermosphere. -
Winter Storm Intensity, Hazards, and Property Losses in the New York Tristate Area
Ann. N.Y. Acad. Sci. ISSN 0077-8923 ANNALS OF THE NEW YORK ACADEMY OF SCIENCES Issue: Annals Reports ORIGINAL ARTICLE Winter storm intensity, hazards, and property losses in the New York tristate area Cari E. Shimkus,1 Mingfang Ting,1 James F. Booth,2 Susana B. Adamo,3 Malgosia Madajewicz,4 Yochanan Kushnir,1 and Harald E. Rieder1,5 1Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York. 2City University of New York, City College, New York, New York. 3Center for International Earth Science Information Network, Columbia University, Palisades, New York. 4Center for Climate Systems Research, Columbia University, New York, New York. 5Wegener Center for Climate and Global Change and IGAM/Institute of Physics, University of Graz, Graz, Austria Address for correspondence: Mingfang Ting, Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY 10964. [email protected] Winter storms pose numerous hazards to the Northeast United States, including rain, snow, strong wind, and flooding. These hazards can cause millions of dollars in damages from one storm alone. This study investigates meteorological intensity and impacts of winter storms from 2001 to 2014 on coastal counties in Connecticut, New Jersey, and New York and underscores the consequences of winter storms. The study selected 70 winter storms on the basis of station observations of surface wind strength, heavy precipitation, high storm tide, and snow extremes. Storm rankings differed between measures, suggesting that intensity is not easily defined with a single metric. Several storms fell into two or more categories (multiple-category storms). Following storm selection, property damages were examined to determine which types lead to high losses. -
Understanding Storm Surge
The Education Program at the New Jersey Sea Grant Consortium 22 Magruder Road, Fort Hancock, NJ 07732 (732) 872-1300 www.njseagrant.org UNDERSTANDING STORM SURGE HOW METEOROLOGISTS PREDICT AND MEASURE STORM SURGE The many factors that impact the height of storm surge make predicting storm surge very difficult; however, scientists from NOAA and the NWS (National Weather Service) have created a computer model called SLOSH (Sea, Lake, Overland Surges from Hurricanes) to predict storm surge heights and evaluate the risk of a coastal strike. The model depends on a storm’s atmospheric pressure, track, size, speed. Using complex physic equations, the model can apply this information to a specific location taking into consideration local water depth, land elevation, and other land features that could affect storm surge. All the different locations where storm surges are predicted are called basins. The New Jersey Sea Grant Consortium (NJSGC) is an affiliation of colleges, universities and other groups dedicated to advancing knowledge and stewardship of New Jersey’s marine and coastal environment. NJSGC meets its mission through its innovative research, education and outreach programs. For more information about NJSGC, visit njseagrant.org. A sample SLOSH model display from Hurricane Ike (2008). The model uses a color code to illustrate how high storm surge levels will go in feet above ground level. Since storms can be difficult to forecast, the model also takes into account historical storm surges from past storms and hypothetical storm surges, using many different factors that can change quickly during a storm such as size, intensity, track, etc. The model reports how high the storm surge inundation will be in feet above ground, so if the model predicts a 20 foot storm surge, that means the water will reach 20 feet above ground in that specific location. -
Flood ACC Article
Breadth of the Flood Exclusion: A Flood is a Flood, Including Storm Surge TRED R. EYERLY A case involving an Alaska Native Corporation and property damage caused by a hurricane is bound to be of interest. Arctic Slope Regional Corp. v. Affiliated FM Ins. Co. did not disappoint.1 The Arctic Slope Regional Corporation, based in Barrow, Alaska, and one of the thirteen Corporations formed under the Alaska Native Claims Settlement Act of 1971, owned an office and construction yard in Iberia Parish, Louisiana. The property was inundated with three feet of water after Hurricane Rita’s storm surge hit in September 2005. Arctic Slope filed a claim for property damage with Affiliated. The claim was denied and suit was filed. Before the district court, the parties disputed which policy provisions applied to the storm surge related claims. The distinction was critical because the policy covered damage caused by “Wind and/or hail,” but excluded damage caused by flood. The policy defined “Wind and/or hail” as “direct and/or indirect action of wind and all loss or damage resulting there from whether caused by wind, by hail or by any other peril . when water . is carried, blown, driven, or otherwise transported by wind onto or into said location.” “Flood,” on the other hand, was defined as “surface water; tidal or seismic sea wave; rising (including overflowing or breaking of boundaries) of any body of water . all whether driven by wind or not. .”2 1 Arctic Slope argued that, because storm surge is caused by strong onshore winds, coverage was provided under the “Wind and/or hail” definition. -
Massachusetts Tropical Cyclone Profile August 2021
Commonwealth of Massachusetts Tropical Cyclone Profile August 2021 Commonwealth of Massachusetts Tropical Cyclone Profile Description Tropical cyclones, a general term for tropical storms and hurricanes, are low pressure systems that usually form over the tropics. These storms are referred to as “cyclones” due to their rotation. Tropical cyclones are among the most powerful and destructive meteorological systems on earth. Their destructive phenomena include storm surge, high winds, heavy rain, tornadoes, and rip currents. As tropical storms move inland, they can cause severe flooding, downed trees and power lines, and structural damage. Once a tropical cyclone no longer has tropical characteristics, it is then classified as a post-tropical system. The National Hurricane Center (NHC) has classified four stages of tropical cyclones: • Tropical Depression: A tropical cyclone with maximum sustained winds of 38 mph (33 knots) or less. • Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots). • Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher. • Major Hurricane: A tropical cyclone with maximum sustained winds of 111 mph (96 knots) or higher, corresponding to a Category 3, 4 or 5 on the Saffir-Simpson Hurricane Wind Scale. Primary Hazards Storm Surge and Storm Tide Storm surge is an abnormal rise of water generated by a storm, over and above the predicted astronomical tide. Storm surge and large waves produced by hurricanes pose the greatest threat to life and property along the coast. They also pose a significant risk for drowning. Storm tide is the total water level rise during a storm due to the combination of storm surge and the astronomical tide.