Tornadoes · United States · Alabama · 2018

EF0 tornado, Lapine to Ramer, Alabama, April 22, 2018

From Lapine to Ramer, this EF0 tornado ran 2.6 miles across Montgomery County on April 22, 2018, touching down at 2:25 PM CDT and reaching 250 yards wide. It killed nobody.

The rating scale

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

  1. EF065 to 85 mphthis tornado

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

  2. EF186 to 110 mph

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

  3. EF2111 to 135 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. EF3136 to 165 mph

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

  5. EF4166 to 200 mph

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

  6. EF5over 200 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
EF0
Date
April 22, 2018
Touchdown
2:25 PM CDT (19:25 UTC)
Lifted
2:30 PM CDT (19:30 UTC)
On the ground
5 minutes
Path length
2.6 miles (4.1 km)
Path width
250 yards (229 m)
Deaths
0
Injuries
0
County
Montgomery County
Touchdown point
31.988, -86.260
Lift-off point
32.020, -86.239
Record number
1804221325-01

The damage survey

22 damage points were recorded along this path by NWS BMX and NWS MOB, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 90 mph.

  • 5 large hardwoods uprooted. several tree tops snapped
  • numerous trees with branches that are snapped.
  • approximate start point by sight.
  • Tree damage visible at this location via high resolution satellite imagery.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

A deepening surface low over south Mississippi tracked northeast and into west Alabama by the late afternoon hours on April 22nd. The surface low pushed and warm front northward into Central Alabama and caused the low level winds to back, increasing the |low level shear and instability.

National Weather Service meteorologists surveyed damage in extreme southwest Montgomery County and determined that the damage was consistent with an EF0 tornado, with maximum sustained winds near 80 mph. The tornado touched down just east of Philadelphia Church Road, northeast of Lapine and west of Grady. The tornado tracked northeastward and crossed Philadelphia Church Road and Naftel Ramer Road. The tornado lifted just after it crossed Smiley Ferry Road. Several trees were uprooted or snapped along the damage path. The most concentrated area of damage was just as the tornado was lifting near Smiley Ferry Road, but still limited to tree damage.

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

The warnings

10 minutes of warning. NWS BMX issued a tornado warning for this county at 19:15 UTC, 10 minutes before the tornado touched down, in force until 19:45 UTC.

Issued (UTC)ExpiredProductOffice
19:15 UTC19:45 UTCTornado WarningBMX
19:55 UTC23:50 UTCTornado WatchBMX

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 Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 16:11 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 air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Birmingham, AL (KBMX), 12:00Z

7.4 hours before the tornado, 140 km from the path. April 22, 2018.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2018-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 29 joules per kilogram, CIN -102, lifted condensation level 562 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 12:00Z on 2018-04-22The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 286 square meters per square second, 0 to 6 km bulk shear 48 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
29 J/kg
Mixed-layer CIN
-102 J/kg
Surface CAPE
26 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
48 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Birmingham, AL (KBMX), 00:00Z

4.6 hours after it, 140 km from the path. April 23, 2018.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2018-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 184 joules per kilogram, CIN -22, lifted condensation level 463 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 00:00Z on 2018-04-23The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 545 square meters per square second, 0 to 6 km bulk shear 57 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
184 J/kg
Mixed-layer CIN
-22 J/kg
Surface CAPE
451 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
57 kt
0-1 km bulk shear
46 kt
0-1 km storm-relative helicity
545 m²/s²
0-3 km storm-relative helicity
700 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.4
0-3 km lapse rate
5.1 K/km

Open this sounding in Storm Lab

The radar

The Maxwell AFB radar (KMXX), 73 km away, was scanning. The volume nearest the touchdown began at 19:27 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
18:43 UTCTORNADO6 Wnw RutledgeCrenshaw, ALAN EF-1 TORNADO TOUCHED DOWN NEAR JEFFCOAT RD. ONE MOBILE HOME AND A SHED WERE DESTROYED. SEVERAL LARGE TREES WERE UPROOTED OR SNAPPED, ONE OF WHICH FELL ON A VEHICLE. THE TORNADO THEN CAUSED SPORADIC DAMAGE AS IT PASSED
18:54 UTCTSTM WND DMG4 Sse HonoravilleCrenshaw, ALTREE BLOWN ONTO A HOUSE WITH NUMEROUS TREES DOWN IN THE SURROUNDING AREAS.
18:54 UTCTSTM WND DMG4 Sse HonoravilleCrenshaw, ALTREE BLOWN ONTO A HOUSE WITH NUMEROUS TREES DOWN IN THE SURROUNDING AREAS.
19:11 UTCTORNADO3 Ne SavilleCrenshaw, ALA TORNADO TOUCHED DOWN NEAR DANIEL MILL RD CAUSING MINOR TREE DAMAGE, THEN STRENGTHENED TO AN EF-1 BEFORE REACHING OLIVER MYERS RD. SEVERAL LARGE TREES WERE UPROOTED OR SNAPPED. THE TORNADO CAUSED MINOR TO MODERATE ROOF
19:14 UTCTSTM WND DMG1 Se Highland HomeCrenshaw, ALPICTURES OF TREES SNAPPED AND NUMEROUS LARGE BRANCHES DOWN NEAR A HOME IN THE AREA OF HIGHLAND HOME AND MAGNOLIA SPRINGS.
19:14 UTCTSTM WND DMG1 Se Highland HomeCrenshaw, ALPICTURES OF TREES SNAPPED AND NUMEROUS LARGE BRANCHES DOWN NEAR A HOME IN THE AREA OF HIGHLAND HOME AND MAGNOLIA SPRINGS.
19:25 UTCTORNADO3 Wnw GradyMontgomery, ALNWS METEOROLOGISTS SURVEYED DAMAGE IN SOUTHWEST MONTGOMERY COUNTY AND DETERMINED THAT THE DAMAGE WAS CONSISTENT WITH AN EF0 TORNADO. THE TORNADO TOUCHED DOWN JUST EAST OF PHILADELPHIA CHURCH ROAD, NORTHEAST OF LAPINE AND
19:30 UTCTSTM WND DMG3 Wnw GradyMontgomery, ALTREES DOWN ON NAFTEL-RAMER ROAD. POSSIBLE TORNADO.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2018 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of April 22, 2018

10 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 229:47 AM CDTEF1Lafourche Parish, LA7.275
April 2210:25 AM CDTEF0Jefferson Parish, LA1.330
April 221:02 PM CDTEF0Escambia, FL0.125$50,000
April 221:11 PM CDTEF0Dale, AL1.2100$1,000
April 221:43 PM CDTEF1Crenshaw, AL3.7150$100,000
April 222:11 PM CDTEF1Crenshaw, AL2.2175$100,000
April 223:05 PM CDTEF0Baldwin, AL0.225$25,000
April 223:25 PM CDTEF0Baldwin, AL1.61003$100,000
April 223:38 PM CDTEF0Baldwin, AL1.0100$25,000
April 224:13 PM CDTEF1Okaloosa, FL1.2502$500,000

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.