Title

Explaining the spatial variability of summer rainfall in Pinellas County, Florida.

SelectedWorks Author Profiles:

Christopher F. Meindl

Document Type

Article

Publication Date

2014

Date Issued

January 2014

Date Available

June 2014

ISSN

0272-3646

Abstract

Pinellas County is a peninsula on the west coast of Florida that receives sea breeze driven convective rainfall during the summer months. To improve forecasting of local mesoscale phenomena, the spatial variability of summer rainfall in Pinellas was examined in relation to dominant wind directions and speeds, atmospheric stability, and atmospheric moisture content for the months of June, July, and August from 2003 to 2007. Radiosonde data from the Ruskin, Florida National Weather Service (NWS) Station, Pinellas County rain gauge data, and radar-estimated rainfall totals from the NWS Advanced Hydrologic Prediction Service were used to examine different meteorological parameters and their relationships with the spatial variability of summer precipitation across the peninsula. Dominant daily wind direction categories were divided into six 60 degree increments: 1–60°, 61–120°, 121–160°, 161–240°, 241–300°, and 301–360°. Precipitable water had a significant positive correlation with precipitation in four of the six wind direction categories (61–120°, 121–180°, 181–240°, and 241–300°). Higher wind speeds associated with a southerly wind direction revealed significant positive relationships with precipitation. Composites of radar-derived rainfall estimates indicate that rain fell primarily in the center of the peninsula under a variety of wind directions, often with two daily maxima. Composites also show that the greatest potential for high precipitation amounts comes with westerly winds (241–300°).

Comments

Abstract only. Full-text article is available only through licensed access provided by the publisher. Published in Physical Geography, 35(2), 1-16. DOI: 10.1080/02723646.2014.895893 Members of the USF System may access the full-text of the article through the authenticated link provided.

Language

en_US

Publisher

Taylor & Francis

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.