WunderMap Interactive Radar & Weather Stations : Weather Underground

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Radar

Fire Satellite — Fire Perimeters

Map Legends:

NEXRAD Radar:

Storm Tracks:		Movement:
	Tornado Vortex Signature
	Mesocyclone
	Hail
	Storm

Weather Stations:

Severe Legenda varovných symbolů:

- Varování před tornádem
A tornado warning is issued when a funnel cloud has been spotted or a rotating thunderstorm has been indicated by doppler radar.

- Tornádová bdělost
A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes.

- Varování před bouřkou
A severe thunderstorm warning is issued when a storm with any of these severe weather criteria is approaching the warning area:

Hail 3/4 of an inch or greater
Winds greater than 58 mph
Recent history of tree, telephone pole, or other structural damage

- Bouřková bdělost
A severe thunderstorm watch is issued when there is a possibility that thunderstorms in and near the watch box area may produce the following severe weather conditions:

Hail 3/4 of an inch or greater
Winds greater than 58 mph

- Upozornění na zimní počasí (sníh, mráz, náledí, ...)
A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area.

- Upozornění na silný vítr
A high wind advisory is issued when sustained winds of 31 mph or greater are expected to occur for at least 1 hour. This advisory can also be issued if winds of 46 mph or greater are expected for any length of time.

- Varování před záplavami
A flood warning is issued when flooding is occuring or is about to occur.

- Povodňová bdělost
A flood watch is issued when flooding is possible in the watch area.

- Hlášený místní hurikán
This statement is issued when it is necessary to inform the public of hurricane or tropical storm watches and warnings. These statements contain detailed information of when and what adverse conditions to expect as a result of the tropical system affecting the statement area.

- Upozornění na neobvyklé teplo
A heat advisory is issued when the heat index is expected to exceed 105 °F (100 °F in New York City) or if nighttime lows are expected to be greater than 80 °F for two or more nights.

- Hustá mlha
A dense fog advisory is issued when fog that reduces visibility to 1/4 mile or less is possible in the advisory area.

- Fire Weather Advisory
A fire weather advisory is issued when dry conditions in the advisory area result in a situation where forest or brush fires are possible.

- Hurricane Watch
A Hurricane Watch means hurricane conditions are possible in the next 24 hours.

- Hurricane Warning
A Hurricane Warning means hurricane conditions are expected in the next 24 hours.

- Tropical Storm Watch
A Tropical Storm warning means tropical storm conditions are possible in the next 24 hours.

- Tropical Storm Warning
A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours.

Satellite:

USGS River:

Model Data:

Hurricane:

Fire:

Tornado:

	Tornado Warning
	Tornado Vortex Signature
	Mesocyclone
	Tornado
	Tornado Report

Dr. Jeff Masters' WunderBlog:

Time to leave New Orleans

Gustav is now a hurricane, according to wind data taken by the latest Hurricane Hunter flight. At 3:11 pm EDT, the Hurricane Hunters visually estimated surface winds of 90 mph, and the SFMR instrument also measured a patch of surface winds of hurricane force, 75-90 mph. Gustav's pressure has fallen 8 mb since it exited the western tip of Jamaica this morning, and now stands at 980 mb, its lowest pressure so far.Figure 1. Current satellite image of Gustav. Visible sat...

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