Tornadoes · United States · Alabama · 1997

F3 tornado, Saraland, Alabama, November 21, 1997

This F3 tornado ran 1.0 miles across Mobile County on November 21, 1997, touching down at 7:40 PM CST and reaching 300 yards wide. It killed nobody, and did $2.0 million of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mphthis tornado

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F3
Date
November 21, 1997
Touchdown
7:40 PM CST (01:40 UTC)
Path length
1.0 miles (1.6 km)
Path width
300 yards (274 m)
Deaths
0
Injuries
0
Property damage
$2.0 million
County
Mobile County
Touchdown point
30.820, -88.070
Lift-off point
30.820, -88.070
Record number
590

What the Weather Service recorded

An F3 tornado touched down just east of I-65 in Saraland near Shelton Beach Estates. The tornado skipped east northeast along the ground before lifting back into the cloud near U S Highway 43. Three homes were almost completely gone, three more suffered major damage and about sixty homes in the middle-class neighbourhood suffered some damage. Most of the damage was consistent with an F1 or F2 tornado. No one was injured. Several people knew they were under a tornado warning and were able to take cover before the storm struck. Most of the residents said they did not hear the familiar "Freight Train Sound" before the tornado struck.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

32 minutes of warning. NWS MOB issued a tornado warning for this county at 01:08 UTC, 32 minutes before the tornado touched down, in force until 02:00 UTC.

Issued (UTC)ExpiredProductOffice
22:29 UTC23:30 UTCTornado WarningMOB
01:08 UTC02:00 UTCTornado WarningMOB

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Slight Risk. The outlook in force was issued at 10:59 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The radar

The Mobile radar (KMOB), 23 km away, was scanning. The volume nearest the touchdown began at 01:38 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

This ground now

The live radar over the trackEvery 1997 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of November 21, 1997

8 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
November 2110:50 AM CSTF1Lafayette Parish, LA3.02001$3.5 million
November 211:35 PM CSTF2Saint Tammany Parish, LA9.020043$3.5 million
November 212:18 PM CSTF1Saint Tammany Parish, LA1.050$70,000
November 212:33 PM CSTF1Pearl River, MS4.01002$700,000
November 213:00 PM CSTF1Hancock, MS0.330$50,000
November 213:25 PM CSTF1Harrison, MS0.330$50,000
November 219:00 PM ESTF1Marion, GA10.0100$35 million
November 2110:45 PM CSTF1Covington, AL0.5150$250,000

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.