Severe Weather Maps
1Km Storm Watch
Region: 
Toggle National and Regional Views
Click the blue-button above to toggle between National/World and Regional views. View persists until toggle back.
For adding explicit book-marks to directly access preferred weather maps, click here to visit our FAQ page.
Legend
NH - Concord 1Km Map NC - Wilmington 1Km Map ME - Caribou 1Km Map FL - Bartow 1Km Map LA - Houma 1Km Map TX - Del Rio 1Km Map AZ - Tucson 1Km Map VA - Richmond 1Km Map AZ - Flagstaff 1Km Map CA - Fresno 1Km Map TN - Nashville 1Km Map NC - Raleigh 1Km Map KY - Covington 1Km Map MO - Springfield 1Km Map AR - Camden 1Km Map MD - Baltimore 1Km Map IN - Fort Wayne 1Km Map CT - Hartford 1Km Map NY - Binghamton 1Km Map IL - Springfield 1Km Map MI - Pellston 1Km Map VT - Montpelier 1Km Map FL - Key West 1Km Map MS - Natchez 1Km Map TX - Brownsville 1Km Map NM - Carlsbad 1Km Map TX - Abilene 1Km Map  1Km Map IA - Carroll 1Km Map MN - Bemidji 1Km Map ND - Devils Lake 1Km Map SD - Aberdeen 1Km Map NE - O'neill 1Km Map KS - Winfield 1Km Map KS - Concordia 1Km Map IL - Quincey 1Km Map CO - Limon 1Km Map NV - Ely 1Km Map WY - Buffalo 1Km Map MT - Helena 1Km Map NV - Reno 1Km Map ID - McCall 1Km Map OR - The Dalles 1Km Map WA - Wenatchee 1Km Map NM - Las Vegas 1Km Map
Learn about 1Km Storm Watch
View Detailed Information »
Overview
The OneKm map allows you to view 1 kilometer (km) resolution radar imagery for many sectors.

Definitions

Tornado Watch/Warning - Conditions are favorable for the development of severe thunderstorms and tornadoes in and close to the watch area. These watches are issued for large areas by the Storm Prediction Center in Norman, Oklahoma, and are usually valid for five to eight hours.

Severe Thunderstorm Watch/Warning - Conditions are favorable for the development of severe thunderstorms in and close to the watch area. A severe thunderstorm contains large damaging hail of 3/4 inch (20 mm) diameter or larger, and/or damaging winds greater than 58 mph (95 km/h or 50 knots) or greater. Isolated tornadoes are also possible but not expected to be the dominant severe weather event. These watches are issued for large areas by the Storm Prediction Center in Norman, Oklahoma, and are usually valid for five to eight hours.

(Flash) Flood Watch/Warning - Conditions are favorable for (flash) flooding in and close to the watch area. These watches are issued by the Weather Forecast Office and are usually issued six to twenty-four hours in advance of expected flood potential. In Canada, a Heavy Rainfall Warning has a similar meaning.

Flood Watch/Warning - General or areal flooding of streets, low-lying areas, urban storm drains, creeks and small streams is occurring, imminent, or highly likely. Flood warnings are issued for flooding that occurs more than 6 hours after the excessive rainfall. These warnings are issued on a county by county basis by the local Weather Forecast Office and are generally in effect for 6 to 12 hours.

Winter Storm Watch/Warning - Hazardous winter weather conditions that pose a threat to life and/or property are occurring, imminent, or highly likely. The generic term, winter storm warning, is used for a combination of two or more of the following winter weather events; heavy snow, freezing rain, sleet and strong winds.

High Wind Watch/Warning - Sustained winds of 40 mph (65 km/h) or greater for a duration of one hour or longer or frequent gusts to 58 mph (93 km/h) or greater.
Advertisements
At Last! Intellicast now available for iPhone and Android