Tornado watch Wikipedia. See Severe weather terminology United States for a comprehensive article on related weather terms. An example of a tornado watch for parts of Kansas and Nebraska, issued by the Storm Prediction Center on May 5, 2. A tornado watch SAME code TOA is issued when weather conditions are favorable for the development of severe thunderstorms called a supercell that are capable of producing tornadoes. A tornado watch therefore implies that it is also a severe thunderstorm watch. A tornado watch must not be confused with a tornado warning. In most cases, the potential exists for large hail andor damaging winds in addition to tornadoes. A watch does not mean that the severe weather is actually occurring, only that atmospheric conditions have created a significant risk for it. If severe weather actually does occur, a tornado warning or severe thunderstorm warning would then be issued. Note that a watch is not required for a warning to be issued tornado warnings are occasionally issued when a tornado watch is not active i. In the United States, the Storm Prediction Center a national guidance center of the National Weather Service issues watches for areas likely to produce tornadoes and severe thunderstorms. The watch boxes or weather watches, WWs are usually outlined in the format of x miles north and south, or east and west, or either side of a line from y miles direction of city, state, to z miles another direction of another city, state. Monk Season 1 Full Episodes on this page. For example 5. 0 miles either side of a line from 1. Columbia, South Carolina to 1. Montgomery, Alabama Either side means perpendicular to the center line. In addition, a list of all counties included in its area of responsibility is now issued by each NWS forecast office for each watch. In the event that a tornado watch is likely to lead to a major tornado outbreak along with possible destructive winds and hail, enhanced wording with the words Particularly Dangerous Situation PDS can be added to the watch this is occasionally issued when atmospheric conditions are deemed sufficient to breed development of severe thunderstorms that are capable of producing significant tornadoes either from supercells that develop strong, low level rotation under typical tornadogenesis during the storms maturation stage, or by thunderstorms that initiate mesocyclone maturation during their early development through a combination of sufficient wind shear and very high convective available potential energy CAPE values. Occasionally, a tornado watch may replace a severe thunderstorm watch or a portion of one should conditions that were originally forecast to be conducive for non tornadic severe thunderstorms change to allow possible tornado formation. But if youre reading Gizmodo youre still enough of a gadget fan to want to at least understand the 9,000 laptop. To that end, I spent nine days working almost. In Canada, the criteria used to issue a tornado watch are the same and watches are issued by regional offices of the Meteorological Service of Canada of Environment Canada in Vancouver, Edmonton, Toronto, Montreal and Halifax, on a county or regional basis. The term red box refers to the assigned coloring used for watch box outlines used in Storm Prediction Center and National Weather Service products television stations typically assign other colors colors used may vary, but very seldom if ever red, which is usually used for tornado warnings green is the most commonly used to denote them to highlight tornado watches in severe weather advisory displays. Watch Outline Updates and Status MessageseditWatch Outline Updates are relayed and at the initial watch issuance, issued by the Storm Prediction Center, however it is the local National Weather Service Weather Forecast Offices that decide what counties in their warning area are included or excluded in the watch, via a conference call with the SPC. As a result, watch products will sometimes display counties inside the watch outline that are not included in the counties listed, and vice versa however the local Weather Forecast Office will need to expand to add these counties into the watch. A Watch Status Message works in a similar fashion the SPC designates which areas it thinks where a threat still exists the most common designation for this is on the basis of the location of surface features such as cold fronts and drylines that would delineate where the threat of severe thunderstorms has ended and where it will remain a possibility, and the NWS offices decide what counties to remove from the watch the local offices will almost always follow the SPC recommendation on the status messages. If conditions are no longer favorable for tornadoes in the watch area either because atmospheric conditions that earlier supported tornadic development have become less conducive for them or were not present compared to predictions in earlier forecasts to form tornadoes, the tornado watch may either be replaced by a severe thunderstorm watch or cancelled outright if no thunderstorm activity occurs, this leads to a tornado watch bust, which may also factor into the Storm Prediction Centers decision as to whether to cancel the watch. Example of a tornado watchedit. URGENT IMMEDIATE BROADCAST REQUESTED. Final Episode Of The Good Wife 2014 Episodes here. Tornado Watch Number 1. NWS Storm Prediction Center Norman OK. AM CDT Wed Apr 2. The NWS Storm Prediction Center has issued a. Tornado Watch for portions of. Much of Arkansas. Northwest Louisiana. Northeast Texas. Effective this Wednesday morning and afternoon from 1. AM. until 5. 00 PM CDT. Primary threats include. Online Move over Netflix, its time to watch NASA and chill. Throw on some Kenny Loggins and cue up one of 330 experimental aircraft videos NASA just added to its. A few tornadoes likely with a couple intense tornadoes possible. Widespread large hail likely with isolated very large hail. Widespread damaging wind gusts to 7. SUMMARY. Severe storms will move across the watch area through this. An isolated strong tornado or two is also. The tornado watch area is approximately along and 9. Walnut Ridge AR to 3. Longview TX. For a complete depiction of the. WOUS6. 4 KWNS WOU2. WindChill.jpg' alt='Watch Wind Chill Download' title='Watch Wind Chill Download' />PRECAUTIONARYPREPAREDNESS ACTIONS. REMEMBER. A Tornado Watch means conditions are favorable for. Persons in these areas should be on the lookout for. OTHER WATCH INFORMATION. CONTINUE. WW 1. 61. WW 9. 99. 7. AVIATION. Tornadoes and a few severe thunderstorms with hail. Extreme turbulence and surface wind. A few cumulonimbi with maximum tops to 5. Mean. storm motion vector 2. Watch Me Before You HDQ. Watch Wind Chill Download' title='Watch Wind Chill Download' />Example of a Watch Outline Updateedit. BULLETIN IMMEDIATE BROADCAST REQUESTED. TORNADO WATCH OUTLINE UPDATE FOR WT 6. NWS STORM PREDICTION CENTER NORMAN OK. AM EDT THU MAR 2. TORNADO WATCH 6. 8 IS IN EFFECT UNTIL 2. PM EDT FOR THE. FOLLOWING LOCATIONS.