SEVERE WEATHER the Weather in North Texas Can Be Brutal
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Developing a Tornado Emergency Plan for Schools in Michigan
A GUIDE TO DEVELOPING A TORNADO EMERGENCY PLAN FOR SCHOOLS Also includes information for Instruction of Tornado Safety The Michigan Committee for Severe Weather Awareness March 1999 1 TABLE OF CONTENTS: A GUIDE TO DEVELOPING A TORNADO EMERGENCY PLAN FOR SCHOOLS IN MICHIGAN I. INTRODUCTION. A. Purpose of Guide. B. Who will Develop Your Plan? II. Understanding the Danger: Why an Emergency Plan is Needed. A. Tornadoes. B. Conclusions. III. Designing Your Plan. A. How to Receive Emergency Weather Information B. How will the School Administration Alert Teachers and Students to Take Action? C. Tornado and High Wind Safety Zones in Your School. D. When to Activate Your Plan and When it is Safe to Return to Normal Activities. E. When to Hold Departure of School Buses. F. School Bus Actions. G. Safety during Athletic Events H. Need for Periodic Drills and Tornado Safety Instruction. IV. Tornado Spotting. A. Some Basic Tornado Spotting Techniques. APPENDICES - Reference Materials. A. National Weather Service Products (What to listen for). B. Glossary of Weather Terms. C. General Tornado Safety. D. NWS Contacts and NOAA Weather Radio Coverage and Frequencies. E. State Emergency Management Contact for Michigan F. The Michigan Committee for Severe Weather Awareness Members G. Tornado Safety Checklist. H. Acknowledgments 2 I. INTRODUCTION A. Purpose of guide The purpose of this guide is to help school administrators and teachers design a tornado emergency plan for their school. While not every possible situation is covered by the guide, it will provide enough information to serve as a starting point and a general outline of actions to take. -
Tornado Safety Q & A
TORNADO SAFETY Q & A The Prosper Fire Department Office of Emergency Management’s highest priority is ensuring the safety of all Prosper residents during a state of emergency. A tornado is one of the most violent storms that can rip through an area, striking quickly with little to no warning at all. Because the aftermath of a tornado can be devastating, preparing ahead of time is the best way to ensure you and your family’s safety. Please read the following questions about tornado safety, answered by Prosper Emergency Management Coordinator Kent Bauer. Q: During s evere weather, what does the Prosper Fire Department do? A: We monitor the weather alerts sent out by the National Weather Service. Because we are not meteorologists, we do not interpret any sort of storms or any sort of warnings. Instead, we pass along the information we receive from the National Weather Service to our residents through social media, storm sirens and Smart911 Rave weather warnings. Q: What does a Tornado Watch mean? A: Tornadoes are possible. Remain alert for approaching storms. Watch the sky and stay tuned to NOAA Weather Radio, commercial radio or television for information. Q: What does a Tornado Warning mean? A: A tornado has been sighted or indicated by weather radar and you need to take shelter immediately. Q: What is the reason for setting off the Outdoor Storm Sirens? A: To alert those who are outdoors that there is a tornado or another major storm event headed Prosper’s way, so seek shelter immediately. I f you are outside and you hear the sirens go off, do not call 9-1-1 to ask questions about the warning. -
National Weather Service Reference Guide
National Weather Service Reference Guide Purpose of this Document he National Weather Service (NWS) provides many products and services which can be T used by other governmental agencies, Tribal Nations, the private sector, the public and the global community. The data and services provided by the NWS are designed to fulfill us- ers’ needs and provide valuable information in the areas of weather, hydrology and climate. In addition, the NWS has numerous partnerships with private and other government entities. These partnerships help facilitate the mission of the NWS, which is to protect life and prop- erty and enhance the national economy. This document is intended to serve as a reference guide and information manual of the products and services provided by the NWS on a na- tional basis. Editor’s note: Throughout this document, the term ―county‖ will be used to represent counties, parishes, and boroughs. Similarly, ―county warning area‖ will be used to represent the area of responsibility of all of- fices. The local forecast office at Buffalo, New York, January, 1899. The local National Weather Service Office in Tallahassee, FL, present day. 2 Table of Contents Click on description to go directly to the page. 1. What is the National Weather Service?…………………….………………………. 5 Mission Statement 6 Organizational Structure 7 County Warning Areas 8 Weather Forecast Office Staff 10 River Forecast Center Staff 13 NWS Directive System 14 2. Non-Routine Products and Services (watch/warning/advisory descriptions)..…….. 15 Convective Weather 16 Tropical Weather 17 Winter Weather 18 Hydrology 19 Coastal Flood 20 Marine Weather 21 Non-Precipitation 23 Fire Weather 24 Other 25 Statements 25 Other Non-Routine Products 26 Extreme Weather Wording 27 Verification and Performance Goals 28 Impact-Based Decision Support Services 30 Requesting a Spot Fire Weather Forecast 33 Hazardous Materials Emergency Support 34 Interactive Warning Team 37 HazCollect 38 Damage Surveys 40 Storm Data 44 Information Requests 46 3. -
PRC.15.1.1 a Publication of AXA XL Risk Consulting
Property Risk Consulting Guidelines PRC.15.1.1 A Publication of AXA XL Risk Consulting WINDSTORMS INTRODUCTION A variety of windstorms occur throughout the world on a frequent basis. Although most winds are related to exchanges of energy (heat) between different air masses, there are a number of weather mechanisms that are involved in wind generation. These depend on latitude, altitude, topography and other factors. The different mechanisms produce windstorms with various characteristics. Some affect wide geographical areas, while others are local in nature. Some storms produce cooling effects, whereas others rapidly increase the ambient temperatures in affected areas. Tropical cyclones born over the oceans, tornadoes in the mid-west and the Santa Ana winds of Southern California are examples of widely different windstorms. The following is a short description of some of the more prevalent wind phenomena. A glossary of terms associated with windstorms is provided in PRC.15.1.1.A. The Beaufort Wind Scale, the Saffir/Simpson Hurricane Scale, the Australian Bureau of Meteorology Cyclone Severity Scale and the Fugita Tornado Scale are also provided in PRC.15.1.1.A. Types Of Windstorms Local Windstorms A variety of wind conditions are brought about by local factors, some of which can generate relatively high wind conditions. While they do not have the extreme high winds of tropical cyclones and tornadoes, they can cause considerable property damage. Many of these local conditions tend to be seasonal. Cold weather storms along the East coast are known as Nor’easters or Northeasters. While their winds are usually less than hurricane velocity, they may create as much or more damage. -
Severe Weather: Thunderstorms and Tornados
Health and Safety Alert January 2020 Severe Weather Watches and Warnings: Thunderstorms and Tornados A severe weather watch alerts people that severe weather is expected or that conditions are favorable for the development of severe weather. A severe weather warning means that severe weather is occurring, imminent, or likely in the location indicated and is a threat to life and property. People in the warning area need to take action immediately. Severe Weather Watches and Warnings are issued by the National Weather Service. When a watch is issued: A watch may be issued hours before a storm. The sky may be sunny when you first hear a severe thunderstorm or tornado watch. After you learn of a watch, check weather information frequently: While watches may be issued before storms form, thunderstorms may be developing when the watch is posted, or thunderstorms may be ongoing and moving into the area. By checking the weather information again, you will be aware of what is going on around you. Options for staying informed about the weather include: • Weather radios • TV news channels • AM/FM radio • Internet • Emergency alerts via phone, e-mail or text When a severe thunderstorm warning is issued: Do not ignore severe thunderstorm warnings! Severe thunderstorm warnings often precede tornado warnings, providing you with extra time to prepare for a dangerous storm. If there is a severe thunderstorm headed your way, you should monitor it closely, especially if a tornado watch is also in effect. Move inside and away from windows. Severe thunderstorms can produce damaging straight- line winds and large hail. -
Weather Watches and Warnings Severe Thunderstorm Warning
Weather Watches and Warnings Weather Watches and Warnings Severe Thunderstorm Watch Severe Thunderstorm Watch Means thunderstorms forecast will produce six and more hail Means thunderstorms forecast will produce six and more hail events of 3/4 inch (penny) diameter or greater, or damaging events of 3/4 inch (penny) diameter or greater, or damaging winds of 50 knots (58 mph) or greater. The forecast event winds of 50 knots (58 mph) or greater. The forecast event minimum thresholds should be at least 2 hours over an area minimum thresholds should be at least 2 hours over an area of at least 8,000 square miles. of at least 8,000 square miles. Severe Thunderstorm Warning Severe Thunderstorm Warning Severe Thunderstorm Warnings are issued when there is Severe Thunderstorm Warnings are issued when there is radar indication and/or reliable spotter reports of hail of 3/4 radar indication and/or reliable spotter reports of hail of 3/4 inch (penny) diameter or greater, and/or wind gusts of 50 inch (penny) diameter or greater, and/or wind gusts of 50 knots (58 mph) or greater. knots (58 mph) or greater. Tornado Watch Tornado Watch A tornado watch means that the conditions are favorable for A tornado watch means that the conditions are favorable for producing a particular event, but it has not formed yet. Watches alert producing a particular event, but it has not formed yet. Watches alert the public that they need to pay closer attention than usual to the the public that they need to pay closer attention than usual to the weather, just to be safe. -
Tornado Procedures
FLINT PUBLIC LIBRARYLIBRARY EMERGENCY RESPONSE PLAN FOR MAIN BRANCH 1026 E KEARSLEY ST FLINT MI 48503 TORNADO PROCEDURES Table of Contents General Purpose / Definitions and Conditions Contact person Tornado Watch Notification Tornado Shelter Locations Termination of Watches and Warnings DATE: MAY 2, 2006 1 FLINT PUBLIC LIBRARY TORNADO WEATHER PROCEDURES I. PURPOSE The purpose of the Flint Public Library Tornado Weather procedures is to outline how the Library’s Staff, patrons and students are to respond to tornado watches, tornado warnings, and actual tornadoes. II. DEFINITIONS A. Weather Alert System is a radio alert system that is located in the Loan Department workroom area. The system is activated with a alarm tone proceed with a verbal message by the Emergency Management Office with the current weather conditions. B. Contact Person - Staff person in charge on that day is responsible for receiving and disseminating all messages received over the Weather Alert System. If the Person in charge is unavailable their alternate will assume the responsibility. TORNADO CONDITIONS Tornado Watches : are issued by the National Oceanic and Atmospheric Administrative National Severe Storm Forecast Center, Norman Oklahoma, to identify areas where conditions are favorable for tornado formation. A watch is an alert telling staff to continue with their daily routine, but to be ready to respond to a warning. Tornado Warnings : are issued by the local National Weather Service facility, in White Lake, Michigan, and means a tornado has been sighted or indicated by weather radar. Persons close to the storm should take shelter immediately, and remain there until the U.S. Weather Service warning has expired. -
Severe Thunderstorm Warning (SVR) Issuance in Situations Where There Are Convective Storms with Little Or No Lightning
Department of Commerce ● National Oceanic & Atmospheric Administration ● National Weather Service NATIONAL WEATHER SERVICE INSTRUCTION 10-511 APRIL 15, 2020 Operations and Services Public Weather Services, NWSPD 10-5 WFO SEVERE WEATHER PRODUCTS SPECIFICATION NOTICE: This publication is available at: http://www.nws.noaa.gov/directives/. OPR: W/AFS21 (G. Schoor) Certified by: W/AFS21 (M. Hawkins) Type of Issuance: Emergency SUMMARY OF REVISIONS: This directive supersedes NWSI 10-511, dated August 20, 2018. The following changes were made to this instruction: 1) Reverted language about the “LAT…LON” section (4.3.5) parameters in the Severe Weather Statement (SVS) to previous version. 2) Additional guidance in Section 2.2.2 for Severe Thunderstorm Warning (SVR) issuance in situations where there are convective storms with little or no lightning. 3) Added “Broadcast Media” to the default list included in the IBW “Source” bullet for SVR (Section 2.3.5), TOR (3.3.5), and SVS (4.3.5). 4) Additional guidance on the inclusion of qualifying severe reports into warning product messages for SVR (Section 2.3.5), TOR (3.3.5), and SVS (4.3.5) and an example in the Appendix (4c). Digitally signed by STERN.ANDRE STERN.ANDREW.D.13829 W.D.138292034 20348 Date: 2020.04.16 08:23:26 8 -04'00' 04/15/2020 Andrew D. Stern Date Director, Analyze, Forecast, and Support Office NWSI 10-511 APRIL 15, 2020 WFO Severe Weather Products Specification Table of Contents: Page 1. Introduction ............................................................................................................................... 4 2. Severe Thunderstorm Warning (SVR) ...................................................................................... 4 2.1 Mission Connection .......................................................................................................... 4 2.2 Issuance Guidelines ......................................................................................................... -
Severe Weather/Tornado Response Procedure, # EP-08-002
UNIVERSITY OF TOLEDO SUBJECT: CODE GRAY Procedure No: EP-08-002 SEVERE STORM/TORNADO RESPONSE PROCEDURE PROCEDURE STATEMENT Clear, specific procedures shall be implemented to protect patients, staff, students, and visitors in the case of a severe storm and/or a tornado watch or warning. PURPOSE OF PROCEDURE To provide guidelines for actions to be taken in the event of a tornado watch and/or tornado warning. Definitions Tornado Watch as defined by the National Weather Service – defines an area where tornadoes are possible in the next several hours. In a watch you need to be alert and be prepared to go to safe shelter if tornadoes do happen or a warning is issued. Tornado Warning as defined by the National Weather Service – a tornado has been spotted or that Doppler radar indicates a thunderstorm circulation which can spawn a tornado. When a tornado warning is issued for your town or county take immediate safety precautions. PROCEDURE Switchboard The University Police dispatcher shall monitor the CAD system and the weather alert channels located in the dispatch offices. In the case where a tornado watch/warning has been issued or verified information has been received that a tornado has been sighted, the dispatcher shall notify the following: The switchboard operator on the Health Science Campus (HSC), who will issue a HSC campus-wide mass notification to all HSC buildings. The switchboard operators will also call the HSC departments or buildings listed below. The MC dispatcher shall also notify all police officers on duty of the tornado warning. Early Learning Center .................................................. 419-530-6710 Code Gray Watch or Warning shall be announced and cancelled based on information from the National Weather Service (via weather radio). -
10-310 Coastal Waters Forecast
NWSI 10-310 JUNE 18, 2019 Department of Commerce • National Oceanic & Atmospheric Administration • National Weather Service NATIONAL WEATHER SERVICE INSTRUCTION 10-310 JUNE 18, 2019 Operations and Services Marine, Tropical, and Tsunami Services Branch, NWSPD 10-3 COASTAL WATERS FORECAST NOTICE: This publication is available at: http://www.nws.noaa.gov/directives/. OPR: AFS26 (W. Presnell) Certified by: AFS2 (A. Allen) Type of Issuance: Routine SUMMARY OF REVISIONS: This instruction supersedes NWSI 10-310, Coastal Waters Forecast, dated April 18, 2017. The following revisions were made to this directive: 1. Updated examples to show use of mixed case. 2. Adjusted wording to reflect consolidation of Small Craft Advisories into one headline. 3. In section 2.2.3, removed the phrase “but no earlier than 1 hour before this issuance time.” 4. In section 2.3.5 b1, edited first sentence to read “When a tropical cyclone warning is in effect, the warning headline should supersede all other headlines in the area covered by the tropical cyclone warning.” 5. Removed Note indicating an exception for Alaska Region (top of page 8) 6. In section 2.3.8, added wording that knots should be the unit used to represent wind speed and the term “knot(s)” or “kt” is acceptable in representing wind speed. Also, removed any use of “kts” for knots and used “knot” in body and used “kt” to indicate knots in examples. 7. In section 2.3.8c, indicated that “visibility” should be spelled out and not abbreviated. 8. In section 2.4, added that NWSI 10-1701 has information on character line and total character limitations. -
Inclement Weather Guidelines for Outdoor Events
INCLEMENT WEATHER GUIDELINES FOR OUTDOOR EVENTS “Inclement weather” is a generic term often used to describe weather conditions that are either unsafe or undesirable for outdoor events. Inclement weather can come in many different forms, as outlined below. This guideline is intended to be used as a tool to help you identify when forecasted or actual weather conditions require cancelling or postponing an event. NOTE: This checklist addresses only the most unsafe weather conditions. Your own event guidelines may dictate actions for other weather conditions that may be undesirable (e.g. rainy, too warm, too cold). Should any of the following triggers occur or become forecasted for the time of the event, the event should be cancelled or, when appropriate, temporarily postponed for safety reasons. Temporarily postponing an event means just waiting a few minutes until the immediate hazard passes, if your schedule allows. When in doubt about what to do, consult with FSU Emergency Management for decision support. ADVANCED NOTICE TRIGGER TO CANCEL EVENT: TRIGGER TO TEMPORARILY POSTPONE TIMEFRAME EVENT: 0 ‐ 48 Hours [ ] Hurricane or Tropical Storm Watch [ ] Winter Storm Watch 0 ‐ 24 Hours [ ] Heat Advisory or Excessive Heat Watch [ ] High Wind Watch [ ] Winter Weather Advisory [ ] Wind Chill Advisory 0 ‐ 12 Hours [ ] Tornado Watch [ ] Severe Thunderstorm Watch [ ] Flash Flood Watch [ ] Excessive Heat Warning [ ] Wind Advisory During Event [ ] Observed Heat Index in excess of 108’F. [ ] FSU ALERT issued for Tornado Warning, Severe Thunderstorm Warning, Flash Flood Warning or [ ] Observed Wind Chill less than 0’F. Lightning Warning. [ ] Observed winds in excess of 35 miles per hour. [ ] Significant Weather Advisory (no FSU ALERT). -
Warning Uses Definition of Terms
Warning Uses Convective Weather Flooding Winter Weather Non-Precipitation Tornado Watch Flash Flood Watch Blizzard Warning Tornado Warning Flash Flood Warning Winter Storm Watch Severe Thunderstorm Watch Flood Watch Winter Storm Warning High Wind Warning Severe Thunderstorm Warning Flood Warning Snow Advisory Small Stream Flood Freezing Rain Advisory High Wind Advisory Advisory Ice Storm Warning Winter Weather Advisory Definition of Terms Term Definition Winter Weather There is a good chance of a major winter storm developing in the next several days. Outlook Winter Storm Watch There is a greater than 50% chance of a major winter storm in the next several days Winter Storm Any combination of winter weather including snow, sleet, or blowing snow. The Warning snow amount must meet a minimum accumulation amount which varies by location. Blizzard Warning Falling and/or blowing snow frequently reducing visibility to less than 1/4 mile AND sustained winds or frequent gusts greater than 35 mph will last for at least 3 hours. Ice Storm Warning Freezing rain/drizzle is occurring with a significant accumulation of ice (more than 1/4 inch) or accumulation of 1/2 inch of sleet. Wind Chill Warning Wind chill temperature less than or equal to -20 and wind greater than or equal to 10 mph. Winter Weather Any combination of winter weather such as snow, blowing snow, sleet, etc. where Advisory the snow amount is a hazard but does not meet Winter Storm Warning criteria above. Freezing Light freezing rain or drizzle with little accumulation. Rain/Drizzle Advisory .