Weather Advisory Sample

---

Worldwide Weather Advisories for 6 July 2009 8:15 AM EDT / 12:15 GMT

World Synopsis – North America – Thunderstorms for the High Plains. Caribbean / South America – Heavy rains for Hispaniola, PR and southern Uruguay region. Europe – Heavy Rains and thunderstorms for the UK and southern Europe.  Asia – heavy rains for Thailand, Myanmar and India.

Tropical Severe Weather Synopsis – Eastern Pacific – Mexico: A tropical depression or storm could be forming about 400 miles south-southwest of the southern tip of Baja California.  If this development trend continues, advisories will be initiated later this morning.  There is a high chance of this system becoming a tropical cyclone during the next 48 hours.  While it is a little early to accurately predict a storm track for this system, interests in the southern portion of Baja California should be preparing for the affects from this storm – in the very least, expect flooding rains triggering flash flooding and travel delays in and out of Cabo San Lucas.

North America Severe Weather
US / Canada Synopsis: Thunderstorms are on tap today for the High Plains from Montana down through Texas.  Heavy rains can be expected for central British Columbia and spreading into west central Alberta.

Severe Thunderstorm Outlook for Monday: There is a SLIGHT RISK with the development of severe thunderstorms over across the Northern Rockies / Northern High Plains and across the Southern and Central High Plains with the main threat being damaging winds and hail.  Across central Montana, there may be one or two tornadoes. 
Canada – Central BC and West Central Alberta: An upper low pressure system currently in British Columbia will spread rain into western Alberta later this afternoon. The Whitecourt, Hinton, and Grande Prairie regions can expect to receive 30 to 50 millimetres of rainfall tonight. Another 40 to 70 millimetres of rain will fall on Tuesday before the precipitation tapers off Wednesday morning.

In Alberta tonight, current indications show areas along the northern foothills near Edson receiving the highest amounts of rain. The foothills North of Calgary have the potential to see widespread precipitation totaling near 100 mm with up to 150 mm in the Grande Cache and Edson regions. Rain is expected to taper off Wednesday night as the low moves into Saskatchewan. Rainfall warnings may be issued as the track of this low pressure center becomes more certain. The main threat from this system will be isolated flash flooding and road closures.

International Severe Weather          
Caribbean / Central / South America – Eastern Dominican Republic / Puerto Rico / Virgin Islands & BVI - Heavy Rains and Thunderstorms: Heavy rains along with some thunderstorms in the region may cause some isolated flooding along with some flight delays over the next 24 hours.  This system is expected to move westward, so interests in western Hispaniola should expect heavy rains later today.

Northeastern Argentina / Uruguay - Heavy Rains and Thunderstorms: A developing low pressure system will move off the coast of Argentina and Uruguay and into the Atlantic Ocean. This system will produce moderate to heavy precipitation through this region and inland into Paraguay. Expect isolated flooding to be the main threat.

EMEA – Synopsis – A low pressure system over the UK will bring widespread moderate to heavy rains to the UK before moving eastward.  In central and southern Europe, afternoon thunderstorms are on tap. Expect the usual isolated flooding and travel delays in the warned areas.

Warnings have been issued in the flowing countries:
Italy - Heavy rains / Thunderstorms for northern Italy through this evening.
Slovenia – Heavy rains / Thunderstorms for most of Slovenia through Tuesday.
UK – Heavy Rains through this evening for Highlands & Eilean Siar, Grampian, Central, Tayside & Fife, SW Scotland, Lothian & Borders, Northern Ireland, North East England, North East England, North East England, East Midlands, East Midlands. Expect isolated flooding and some travel delays.

For Tuesday in the UK – Heavy Rains: There is a moderate risk of severe weather across eastern Britain during Tuesday. Scattered heavy, thundery showers will affect many parts of eastern Britain, giving rainfall totals of 20-25 mm in places, and perhaps as much as 40 mm locally. Expect isolated flooding and travel delays.

Asia / Pacific Rim – Indochinese Peninsula - Heavy Rains and Thunderstorms: Heavy rains and thunderstorms are currently over northern Thailand and southern Myanmar and spreading towards the Bay of Bangle and the Myanmar coast.  Expect isolated flooding and mudslides along with isolated damage to the infrastructure. 

India – Heavy Rainfall Warning:  Isolated heavy and very heavy rainfall over Konkan & Goa, coastal Karnataka, Kerala, Northeastern States, west Bengal & Sikkim, Chhattisgarh, Jharkhand, Vidarbha, Orissa and Lakshadweep.  Expect minor to moderate flooding especially along the west coast region.