Arizona, 1998

Flood and Heavy Snow in Arizona, April 1 to 2, 1998

April 1 to 2, 1998 · NWS TWC · 2 events in 2 counties and zones

1 heavy snow, 1 flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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 radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 heavy snow, 1 flood. Local standard time, as filed.

Heavy Snow, Tucson Metro/Marana/Green Valley

When
April 1, 4:30 PM MST to 11:00 PM MST
Where
Tucson Metro/Marana/Green Valley forecast zone

Mt. Lemmon reported 9 inches of new snow.

Flood, Pima

When
April 1, 10:00 PM MST to April 2, 12:00 PM MST
Where
Pima County, Tucson
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Locally heavy rain on already saturated ground caused some small streams and normally dry washes in the far eastern and northern portion of the Tucson Metro Area to rise up to 1 1/2 feet which caused some road closures.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 1998Every state in 1998This day in weather historyWarnings in Arizona, April 1998

Sources

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: 5640629, 5640913.