A spring storm system brought strong winds to nothern Arizona. many locations had reduced visibility in blowing sand and dust throughout the day.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FGZ wrote it up.
A spring storm system brought strong winds to nothern Arizona. In addition to the wind...many locations had reduced visibility in blowing sand and dust throughout the day. Some of the maximum wind gusts were: Winslow 66 MPH, St Johns 51 MPH, and Window Rock 48 MPH.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Flagstaff, AZ wrote its last area forecast discussion before the first event at Apr 19, 9:30 AM MST, 1 hour 30 minutes earlier.
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 930 AM MST THU APR 19 2001 SYNOPSIS...WINDY CONDITIONS WILL PREVAIL OVER THE NORTHLAND TODAY AND FRIDAY AS A SERIES OF PACIFIC WEATHER SYSTEMS MOVE THROUGH THE SOUTHWEST. A WEATHER DISTURBANCE WILL PASS TO THE NORTH OF ARIZONA LATER TONIGHT...BRINGING ADDITIONAL COOLING AND A FEW SHOWERS TO THE HIGHER TERRAIN. A STRONGER WEATHER DISTURBANCE WILL MOVE ACROSS NORTHERN ARIZONA ON SATURDAY. IN ADDITION TO MUCH COLDER TEMPERATURES...THIS SYSTEM WILL PRODUCE WIDESPREAD MOUNTAIN SNOW AND VALLEY RAIN OVER THE REGION BOTH SATURDAY AND SUNDAY. HIGH PRESSURE WILL REBUILD RAPIDLY ON MONDAY...WITH A RETURN TO SEASONABLE TEMPERATURES BY TUESDAY. DISCUSSION...PLUME OF SUBTROPICAL MOISTURE CONTINUES TO MOVE ACROSS THE STATE THIS MORNING. THE BACK EDGE IS NOW ENTERING THE NW CORNER OF THE CWFA AND EXPECT THIS CLEARING TO PROGRESS EASTWARD DURING THE DAY. WILL UPDATE ZONES AND REMOVE POPS IN THE NORTHERN ZONES. TEMPS REMAINED WARM LAST NIGHT AS THE WIND DID NOT DECOUPLE. IN ADDITION...WINDS ARE ALREADY ON THE INCREASE ACROSS MOST OF THE AREA THIS MORNING. ATTM BELIEVE WINDS WILL REMAIN JUST BELOW ADVISORY CRITERIA BUT WILL NEED TO MONITOR THE SITUATION. DB .FGZ...NONE.
The national radar mosaic for the moment the first event began.
5 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2001Every state in 2001This day in weather historyWarnings in Arizona, April 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5236371, 5236373, 5236372, 5236375, 5236374.