Satellite Applications in Tropical Weather Forecasting

4/27/99

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Table of Contents

Satellite Applications in Tropical Weather Forecasting

Acknowledgments

Tropical Upper-Level Lows

16-Frame Water Vapor Imagery Loop 7/26/98 02:45 to 7/29/98 20:45 Formation of a Cold-Low

TPC Tropical Analysis and Forecast Branch Cold-Low Study

TAFB Methods for Tracking Waves

Tropical Cyclone Classification

Overview of the Dvorak Technique

Overview of the Dvorak Technique Cont’d

Four Basic Patterns

Patterns and Associated T Numbers

Empirical relationship between T number and wind speed

Finding the Cloud System Center (CSC)

Curved Band Pattern TS Ivan 9/23/98 11:15 UTC

Curved Band Pattern Cont’d

Shear Pattern Hurricane Bertha 7/11/96 2015 UTC

Shear Pattern DT Numbers

Central Dense Overcast (CDO) Hurricane Georges 9/21/98 1545 UTC

CDO Central Feature (CF)

CDO - Banding Feature (BF)

Eye Pattern Hurricane Georges 9/19/98 1345 UTC

Banding Eye Hurricane Bonnie 8/25/98 2131 UTC

Infrared (IR) Technique

Example Digital IR: Hurricane Erika 1515 UTC 8 September 1997

Operational Dvorak Technique Verification for 1997-98 Atlantic Seasons

Input for NHC Track and Intensity Forecasts

Applications of Satellite Data to TC Forecasting

NEW GOES WINDS PRODUCTS ARE BEING PRODUCED BY CIMSS/NESDIS: - HIGH - DENSITY WINDS DERIVED FROM IR AND HIGH-RESOLUTION VISIBLE CLOUD MOTIONS AS WELL AS WATER VAPOR MOTIONS, USING AUTOMATED ALGORITHMS - DISPLAYS OF THESE WINDS FOR UPPER- & LOWER-LEVEL LAYERS OVER THE TROPICS ARE ROUTINELY AVAILABLE VIA THE INTERNET -UWISC/CIMSS TC WEB SITE: http://cimss.ssec.wisc.edu/tropic/tropic.html

8-Frame Water Vapor Imagery Loop 9/20/98 23:45 to 9/21/98 23:45 Hurricane/Trough Interaction

Storm-Scale Structure

GOES-East Scanning Strategies

10-frame Rapid-Scan Visible Imagery Loop 9/21/98 19:02 to 20:10 Hurricane Georges Approaching Puerto Rico

TC Measurements from Microwave Frequencies

Author: Mark DeMaria

Email: DeMaria@cira.colostate.edu

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