Development of a severe frontal rainband - plans for the Testbed- course study Jenni Teittinen Finnish Meteorological Institute 16 February 2007.

Slides:



Advertisements
Similar presentations
The use of Doppler radar products for nowcasting tornadoes DWD workshop on tornado forecasting, February 24th 2005, Langen 1. introduction 2. products.
Advertisements

Severe convective storms, theory Pieter Groenemeijer FMI Helsinki, 2 May 2005.
Institut für Physik der Atmosphäre 1 Evaluation of a numerical thunderstorm study with POLDIRAD and lightning observations Oberpaffenhofen, 8 February.
Polarimetric Radar Observations of Hydrometeor Refreezing in Winter Storms Matthew R. Kumjian 1,2, Alexander V. Ryzhkov 1,2, Terry J. Schuur 1,2, and Heather.
Thunderstorms & Tornadoes Chapter 10 Meteorology 1010 Professor Bunds Utah Valley University.
Cold Fronts and their relationship to density currents: A case study and idealised modelling experiments Victoria Sinclair University of HelsinkI David.
SMALL SCALE CASE STUDIES Aulikki Lehkonen Finnish Meteorological Institute Regional Services, Western Finland photos: Veera Lehkonen.
1.27 SEVERE CONVECTION ENVIRONMENT IN SOUTHEASTERN ROMANIA Aurora Stan-Sion and Cornel Soci National Meteorological Administration, 97 sos. Bucuresti-Ploiesti.
Northeast Convective Flash Floods: Helping Forecasters Stay Ahead of Rising Water Joe Villani - National Weather Service, Albany, NY Derek Mallia - University.
AOS 100: Weather and Climate Instructor: Nick Bassill Class TA: Courtney Obergfell.
THOR Tornado and Hazardous weather (Hurricane) Observations and Research.
Meteorology 503 Meteorology 503 Tornadic Analysis Severe Weather Outbreak Dodge City, KS May 7, 2002 Julio C. Garcia! SFSU Julio C. Garcia! SFSU.
Mesoscale Observations in Hurricanes Robert Houze University of Washington First US-China Symposium on Meteorology, Norman, Oklahoma, 26 February 2008.
6/26/2015 Examination of the low level polarimetric radar parameters associated with the Aug southern Ontario tornadic supercells Mike Leduc Sudesh.
Helsinki Testbed Mesoscale weather research Forecast and dispersion models development and verification Information systems and technology integration.
An Examination of the March 1-2, 2009 East Coast Gravity Wave Using High- Resolution Operational Data Sets Alan M. Cope NOAA/National Weather Service Mount.
August- September NSF NOAA NRL NCAR UW UM AGU, San Francisco, 12 December 2006.
A Storm-Scale Analysis of the 16 June 2008 Significant Severe Weather Event across New York and Western New England Thomas A. Wasula NOAA/NWS at Albany.
The 4 August 2004 Central Pennsylvania Severe Weather Event – Environmental and Topographical Influences on Storm Structure Evolution Joe Villani NOAA/NWS,
Using Bragg Scattering for ZDR calibration V. Melnikov (CIMMS) and D. Zrnic (NSSL) February 25–27, 2015 National Weather Center Norman, Oklahoma.
Bow Echoes By Matthieu Desorcy.
11/09/2015FINNISH METEOROLOGICAL INSTITUTE CARPE DIEM WP 7: FMI Progress Report Jarmo Koistinen, Heikki Pohjola Finnish Meteorological Institute.
Printed by Investigating Rapid Storm Intensification Mechanisms Including the Role of Storm Mergers in the 22 May 2011 Joplin, MO.
Dual Polarization Martin Hagen, Elena Saltikoff Deutsches Zentrum für Luft- und Raumfahrt (DLR) Oberpfaffenhofen, Germany Finnish Meteorological Institute.
Split Fronts and Cold Fronts Aloft Steven Koch North Carolina State University COMAP 99 Monday, 9 August 1999.
Toward a 4D Cube of the Atmosphere via Data Assimilation Kelvin Droegemeier University of Oklahoma 13 August 2009.
Weather Chapter 24.
The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology Radar fire observations and nowcasting.
Chapter 9: Weather Forecasting Surface weather maps 500mb weather maps Satellite Images Radar Images.
Forecasting the weather Severe weather & fronts
Read. Answer the following in your notebook:  What type of pressure systems produce hurricanes, tornadoes, and winter weather storms?  What things do.
Materials Adapted from The University of Georgia
Weather Analogies By Chris Nelson. Lightning: light::thunder: PART TO WHOLE SOUND.
Characteristics of Dual-Polarimetric Radar Variables during Lightning Cessation: A case Study for 11 April 2008 Thunderstorm Xuanli Li, John Mecikalski,
Angela Rowe and Robert Houze, Jr. University of Washington 37 th Conference on Radar Meteorology Norman, OK 15 September 2015 Polarimetric radar observations.
RADAR METEOROLOGY Courtney Schumacher Texas A&M University ATMO 352.
Mesoscale Observing Network Course The Sea Breeze Project Reijo Hyvönen, FMI Christer Helenelund, Vaisala.
Observed & Simulated Profiles of Cloud Occurrence by Atmospheric State A Comparison of Observed Profiles of Cloud Occurrence with Multiscale Modeling Framework.
Alexander Ryzhkov Weather Radar Research Meteorological Applications of Dual-polarization Radar.
AOS 100: Weather and Climate Instructor: Nick Bassill Class TA: Courtney Obergfell.
GPS Doppler & Buoy 0 – 3 km 3 – 6 km 6 – 10 km Obs Cell Bunkers SFC Cell C CSCN Cell B BSBN 1040 UTC C E B F D A 1108 UTC Cell mergers Upwind flank development.
Orographic Precipitation in Potentially Unstable Alpine Storms: MAP IOPs 2b, 3, and 5 Socorro Medina and Robert A. Houze.
DOPPLER SPECTRA OF WEATHER SIGNALS (Chapter 5; examples from chapter 9)
A Rare Severe Weather and Tornado Event in Central New York and Northeast Pennsylvania: July 8, 2014 Presented by Mike Evans 1.
Forecasting the weather
The Characteristics of Line-Echo Wave Pattern Over the Ocean in the Subtropics Chih-Hsien Wei 1 Wen-Chau Lee 2 Tai-Hua Hor 1 Mao-Hsing Chang 3 1 National.
The 1 November 2004 tornadic QLCS event over southwest Illinois Ron W. Przybylinski Science and Operations Officer National Weather Service – St. Louis.
Shuyi S. Chen, Robert A. Houze Bradley Smull, David Nolan, Wen-Chau Lee Frank Marks, and Robert Rogers Observational and Modeling Study of Hurricane Rainbands.
Megan Chaplin UW Department of Atmospheric Sciences Pacific Northwest Weather Workshop March 4, 2016 Orographic enhancement of precipitation as observed.
WEATHER Week of Feb BELLRINGER: FEB 15 TH No School: Presidents Day.
Doppler Effect The apparent shift in frequency caused by the movement of the sound source or the movement of the observer. When the waves get crunched.
The 22 May 2014 Duanesburg, NY, Tornadic Supercell
Meteotsunamis
Rosenstial School of Marine and Atmospheric Science
T. Connor Nelson 09 December 2016 ATM: 509 Precipitation Processes
Warm Fronts Mixed Phase Case.
Paper Review Jennie Bukowski ATS APR-2017
Lightning Flashes in Alabama Tornadic Supercells on 27 April 2011
Radar Observation of Severe Weather
Center for Analysis and Prediction of Storms (CAPS) Briefing by Ming Xue, Director CAPS is one of the 1st NSF Science and Technology Centers established.
Warm front in radar images
Identifying tornadoes using Doppler radar
August 2006 Forest Fires: Case study using Testbed observations Noora Eresmaa1 Minna Rantamäki1 Mostamandy Suleiman2 1 Finnish Meteorological Institute.
the University of Oklahoma
How do we hear?.
Free Powerpoint Templates
A-J Punkka Weather Warning Service, FMI
Rita Roberts and Jim Wilson National Center for Atmospheric Research
Describing weather.
REVIEW BY FLT LT KK DESHMUKH
Presentation transcript:

Development of a severe frontal rainband - plans for the Testbed- course study Jenni Teittinen Finnish Meteorological Institute 16 February 2007

A cold front moved over Finland on 26 August August UTC27 August UTC

Two rainbands developed UTC UTC UTC14.30 UTC Pre-frontal Severe cold frontal

Nature caused emergency reports on 26 August 6 reported tornadoes

Lightning 26 August 2005 CG IC

Motivation Difficult to forecast – numerical models had high shear but no CAPE How could we forecast these type quite common events? Difficult to nowcast – we would anticipate severe weather in the first rainband Can the Testbed-observations explain why severe weather occured in the second rainband? The frontal rainband had line echo wave patterns –often observed with nonsupercell tornadoes Can we observe the nonsupercell tornado development with radar reflectivity and Doppler velocity? Can we observe a tornado vortex with the Kumpula polarimetric radar (differential reflectivity ZDR and cross-colleration coefficient)?

Why severe weather occured in the second rainband? Testbed-observations Soundings Wind profiler (LAP-3000) Weather transmitters

Can we observe the nonsupercell tornado development with radar reflectivity and Doppler velocity? Can we observe a tornado vortex with the Kumpula polarimetric radar (differential reflectivity ZDR and cross- colleration coefficient)? Lee and Wilhelmson 1997b Ryzhkov et al Testbed data: Kumpula, Vantaa and Ikaalinen radars

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.