Dust Storm Warning
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A Dust Storm Warning (SAME code: DSW) is issued by the National Weather Service of the United States when blowing dust is expected to reduce visibility frequently to Lua error in Module:Convert at line 452: attempt to index field 'titles' (a nil value). or less, generally with winds of 25 miles per hour (40 km/h) or more.[1]
Example
The following is an example Dust storm warning issued by the National Weather Service in Tucson Arizona.[2]
WWUS75 KTWC 042344 NPWTWC URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 444 PM MST MON JUL 4 2011 AZZ502-504>506-050745- /O.NEW.KTWC.DS.W.0003.110706T2300Z-110707T0100Z/ TOHONO O'ODHAM NATION-TUCSON METRO AREA- SOUTH CENTRAL PINAL COUNTY-SOUTHEAST PINAL COUNTY- INCLUDING THE CITIES OF...MARANA...PICACHO PEAK STATE PARK 444 PM MST MON JUL 4 2011 ...DUST STORM WARNING IN EFFECT FROM 4 PM TO 6 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A DUST STORM WARNING...WHICH IS IN EFFECT FROM 4 PM TO 6 PM MST WEDNESDAY. * TIMING...STRONG OUTFLOW WINDS FROM THUNDERSTORMS MOVING THROUGH EASTERN PIMA COUNTY WILL CONTINUE WEST INTO THE TOHONO OODHAM NATION AND NORTHWEST THROUGH PINAL COUNTY. * WINDS...EAST GUSTS OF 30 TO 50 MPH. * VISIBILITY...WILL BRIEFLY BE DOWN TO LESS THAN ONE-QUARTER OF A MILE. * IMPACTS...MOTORISTS SHOULD BE PREPARED TO QUICKLY CHANGING CONDITIONS IN BLOWING DUST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DUST STORM WARNING MEANS SEVERELY LIMITED VISIBILITIES ARE EXPECTED WITH BLOWING DUST. BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING ACCIDENTS THAT MAY INVOLVE CHAIN COLLISIONS AND MULTIPLE PILEUPS. IF DENSE DUST IS OBSERVED BLOWING ACROSS OR APPROACHING A ROADWAY...PULL YOUR VEHICLE OFF THE PAVEMENT AS FAR AS POSSIBLE TO STOP. TURN OFF THE LIGHTS...SET THE EMERGENCY BRAKE...AND TAKE YOUR FOOT OFF OF THE BRAKE PEDAL TO ENSURE BRAKE LIGHTS ARE NOT ILLUMINATED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS CONCERNING THIS DUST STORM. &&
