Tornadoes · United States · Tennessee · 2006

F1 tornado, Hurricane Mills, Tennessee, April 7, 2006

Name: F1 tornado, Hurricane Mills, Tennessee, April 7, 2006
Start: 2006-04-07T19:05:00.000Z
Location: Hurricane Mills, Tennessee

This F1 tornado ran 4.5 miles across Humphreys County on April 7, 2006, touching down at 2:05 PM CDT and reaching 50 yards wide. It killed nobody, and did $100,000 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.

F040 to 72 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
F3158 to 206 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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: F1
Date: April 7, 2006
Touchdown: 2:05 PM CDT (19:05 UTC)
Path length: 4.5 miles (7.2 km)
Path width: 50 yards (46 m)
Deaths: 0
Injuries: 0
Property damage: $100,000
County: Humphreys County
Touchdown point: 35.920, -87.920
Lift-off point: 35.930, -87.830
Record number: 298

What the Weather Service recorded

The storm touched down just south of Carroll Hollow along Cuba Landing Rd. Large trees were snapped, uprooted or blown down. The tornado crossed Bakerville Road where a brick home was 40 percent destroyed. A mobile home was demolished with only a twisted metal frame left at the mobile home's original site. The tornado went across Jack Rudolph Road and lifted up along Old Highway 13 where trees were destroyed and another mobile home was pushed off its foundation.

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

The forecast that day

The Storm Prediction Center had this point in a High Risk, with a 0.30 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 16:32 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.

What forecasters said that day

The local office's own words before the tornado touched down, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before the tornado touched down at Apr 7, 9:15 AM CDT, 4 hours 50 minutes earlier.

Area forecast discussion, Apr 7, 9:15 AM CDT, 4 hours 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
915 AM CDT FRI APR 7 2006

.UPDATE...
SPC ALREADY TALKING ABOUT POSSIBLE WATCH WITH SUPERCELL
DEVELOPMENT ALREADY TAKING PLACE MEM AREA. LOOKING AT MORNING
SOUNDING AND PROGGED SOUNDINGS...ATMOSPHERE PRIMED FOR SEVERE
INCLUDING TORNADOES...

FROM 18Z-00Z TIME FRAME...

SWEAT INDEX 300+
TOTAL TOTALS 50+
LI -5 TO -10
CAPE INCREASING TO 2000+
0-3 KM HELICITIES 300+

&&

.PREV DISCUSSION... (ISSUED 219 AM CDT FRI APR 7 2006)

SHORT TERM...ALLS QUIET AT THE MOMENT, ALTHOUGH THE RADAR DOES
SHOW SOME LIGHT ACTIVITY OVER THE UPPER PLATEAU THIS HOUR.
OTHERWISE, TEMPERATURES REMAIN MILD, WITH 06Z READINGS RANGING
FROM CROSSVILLES 67 DEGREES, TO LEBANONS 72. DEW POINTS ARE
MAINLY IN THE LOWER 40S TO LOWER 50S. SURFACE FLOW CONTINUES
FROM THE SOUTH, AND THE STRENGTHENING PRESSURE GRADIENT IS
RESULTING IN SOME GUSTY WINDS.

THE SURFACE MAP SHOWS A 985 MB LOW CENTERED OVER EASTERN NEBRASKA,
WITH A COLD FRONT TRAILING SOUTHWARD, AND THE WARM FRONT EXTENDING
EASTWARD FROM THE LOW CENTER FAR TO OUR NORTH. THUS, MIDDLE
TENNESSEE REMAINS WELL INSIDE A BROAD MARITIME TROPICAL AIR MASS.
INTERESTINGLY, SURFACE DEW POINTS INCREASE FARTHER WEST, BUT DROP
CONSIDERABLY OVER THE SOUTHERN PLAINS, MEANING THERE IS QUITE A
BIT OF DRY AIR WRAPPING INTO THE LOW.

LONG TERM...AM EXPECTING SCATTERED CONVECTION TODAY ACROSS MIDDLE
TENNESSEE, WITH SLIGHTLY GREATER CHANCES DOWN SOUTH AROUND
WAYNESBORO AND LAWRENCEBURG. A WEAK, PRE-FRONTAL SURFACE TROUGH
WILL PUSH ACROSS THE MID STATE THIS MORNING, BUT THEN WE ACTUALLY
DRY OUT FOR SEVERAL HOURS LATER ON TODAY. THEREFORE, AM NOT
EXPECTING SIGNIFICANT RAINFALL OR SEVERE STORMS TODAY.

AT 00Z THIS EVENING, THE GFS/ETA/NGM MODELS FILL THE LOW TO 998-
999 MB AND BRING THE CENTER UP TO CAPE GIRARDEAU, AND AT 06Z,
THE LOW WILL BE AROUND JACKSON, TENNESSEE AS A STRONGER SHORTWAVE
DEVELOPS IN THE 850 MB FLOW. BY THIS TIME, DEEP MOISTURE AND A
DEEP POSITIVE OMEGA FIELD DEVELOP OVER THE MID STATE, MOST
STRONGLY DEPICTED BY THE GFS SOLUTION, AND TO A LESSER EXTENT BY
THE ETA AND NGM. STILL, THE CONSISTENCY SHOWN BY THE MODELS THE
LAST 2-3 DAYS GIVES HIGH CONFIDENCE TO TONIGHTS FORECAST.

LOOKING AT VARIOUS DYNAMICS AND INSTABILITY FIELDS GIVES A BETTER
UNDERSTANDING OF THE TYPE OF WEATHER WERE EXPECTING OVERNIGHT.
ALL MODELS ARE SHOWING STRONG UPWARD VERTICAL MOTION IN THE MID-
LEVELS, WITH EQUALLY SIGNIFICANT DIFFERENTIAL VORTICITY ADVECTION
WITHIN THE 700-500 MB LAYER, INDICATING UPWARD ACCELERATION
THROUGH THE MID-LEVELS. LIKEWISE, LAPSE RATES IN THIS LAYER WILL
REMAIN 6.5 TO 7.0 DEGREES CELSIUS PER KM THROUGHOUT TODAY AND
TONIGHT, INDICATING SUFFICIENT INSTABILITY FOR CONVECTION.

SIMILARLY, THE WIND FIELDS AT 06Z SHOW REMARKABLE UPPER-LEVEL
DIVERGENCE OVER MIDDLE TENNESSEE, WITH EQUALLY STRONG THETA-E
CONVERGENCE AT 850 MB, AND MOISTURE FLUX CONVERGENCE AT THE
SURFACE. ALL, OF COURSE, WILL BE CONTRIBUTORS TO THE ACTIVE
WEATHER WERE EXPECTING OVERNIGHT.

MODEL SOUNDINGS AT THE SAME TIME ALSO REFLECT DEEP INSTABILITY,
WITH MARKED DRY AIR INSTRUSION SHOWN ON THE GFS MODEL SOUDING FOR
BNA, TO A LESSER EXTEND ON THE NGM SOUNDING, WITH THE ETA MODEL
SHOWING A NEARLY SATURATED COLUMN 24 HOURS FROM NOW. USING THE NGM
SOUNDING AS A COMPROMISE, WERE STILL LOOKING AT A K-INDEX OF 33,
A LIFTED INDEX OF -6.4, AND CONVECTIVE AVAILABLE POTENTIAL ENERGY
OF 1865 J/KG. A UNIDIRECTIONAL WIND FIELD PUTS A LID ON THE 0-3 KM
HELICITY, WITH A VALUE OF ONLY 89. HOWEVER, THE FREEZING LEVEL
WILL BE AROUND 9,500 FEET, MEANING THAT THOSE STORMS WHICH DEVELOP
STRONG UPDRAFTS WILL LIKELY PRODUCE LARGE HAIL.

THE MOST RECENT DAY 1 CONVECTIVE OUTLOOK PLACES NORTHERN MIDDLE
TENNESSEE (CLARKSVILLE, GALLATIN, LIVINGSTON) UNDER A SLIGHT RISK
OF SEVERE WEATHER TODAY AND TONIGHT. A MODERATE RISK COVERS AREAS
FARTHER SOUTH (NASHVILLE, MURFREESBORO, CROSSVILLE), WHILE A HIGH
RISK AREA COVERS OUR EXTREME SOUTH (WAYNESBORO, LAWRENCEBURG,
PULASKI).

BY 12Z SATURDAY, THE LOW CENTER WILL HAVE MOVED INTO THE
APPALACHIANS, WITH DEEP WRAP-AROUND MOISTURE STILL EXPECTED TO
PRODUCE SOME LINGERING SHOWERS SATURDAY MORNING OVER MIDDLE
TENNESSEE, PARTICULARLY THE PLATEAU. WE WILL CLEAR OUT DURING THE
DAY SATURDAY AS THE MOISTURE PULLS EAST, AND THE 500 MB SHORTWAVE
SWINGS ACROSS THE AREA SIMULTANEOUSLY.

AFTERWARDS, LOOK FOR SEVERAL DAYS OF DRY WEATHER, WITH THE NEXT
WEATHER SYSTEM NOT EXPECTED UNTIL TUESDAY NIGHT AND WEDNESDAY.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

MAG

Hazardous weather outlook, Apr 7, 12:23 PM CDT, 1 hour 42 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NASHVILLE TN
1223 PM CDT FRI APR 7 2006

TNZ005>011-022>034-056>066-075-077>080-093>095-081030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DEKALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
1223 PM CDT FRI APR 7 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A STRONG LOW PRESSURE SYSTEM WILL APPROACH MIDDLE TENNESSEE LATE
TODAY AND THEN MOVE ACROSS THE AREA OVERNIGHT. INCREASING AMOUNTS
OF MOISTURE WILL CONTINUE MOVING NORTH FROM THE GULF OF MEXICO
AND INTO THE MID STATE. THIS COMBINED WITH COLDER AIR MOVING IN
ALOFT WILL PRODUCE INCREASINGLY MORE UNSTABLE CONDITIONS AS THE
AFTERNOON CONTINUES. WINDS WILL ALSO BECOME QUITE FAVORABLE...
ESPECIALLY LATER THIS AFTERNOON THROUGH ABOUT MIDNIGHT TONIGHT...
SO THAT AN INCREASING RISK OF NOT ONLY VERY LARGE HAIL AND
DAMAGING WINDS...BUT TORNADOES AS WELL...WILL BE VERY LIKELY.

THE STORMS WILL BECOME MORE AND MORE NUMEROUS AS THE AFTERNOON CONTINUES
...AND CONTINUE IN THIS MANNER INTO THE NIGHTTIME HOURS. THE
GREATEST THREAT FOR TORNADIC ACTIVITY WILL BE LATE THIS AFTERNOON THROUGH
MIDNIGHT. SOME TORNADOES COULD MOVE LONG DISTANCES BEFORE DISSIPATING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED SHOWERS AND THUNDERSTORMS WILL TAPER OFF DURING THE DAY
SATURDAY WITH SKIES CLEARING LATE. NO SIGNIFICANT WEATHER IS
EXPECTED FOR SUNDAY THROUGH TUESDAY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IS EXPECTED TUESDAY NIGHT AND WEDNESDAY. THIS ACTIVITY
IS NOT EXPECTED TO BE SEVERE. NO SIGNIFICANT WEATHER WEDNESDAY NIGHT
AND THURSDAY.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGERS IS LIKELY THIS
AFTERNOON AND TONIGHT.

STEIGERWALDT

In the hours before

Local storm report, Apr 7, 1:32 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
132 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0126 PM     HAIL             5 N CHARLOTTE           36.26N 87.35W
04/07/2006  M0.25 INCH       DICKSON            TN   TRAINED SPOTTER

            GOLF BALL SIZE HAIL IN CUMBERLAND FURNANCE

&&

MMURPHY

Local storm report, Apr 7, 1:41 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
141 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0139 PM     TORNADO          ASHLAND CITY            36.28N 87.06W
04/07/2006                   CHEATHAM           TN   AMATEUR RADIO

            TORNADO SPOTTED ON THE GROUND IN ASHLAND CITY ALONG
            HIGHWAY 48

&&

MMURPHY

Local storm report, Apr 7, 1:46 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
146 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     TORNADO          CHARLOTTE               36.18N 87.35W
04/07/2006                   DICKSON            TN   TRAINED SPOTTER

            2 MOBILE HOMES DESTROYED NORTH OF CHARLOTTE

&&

MMURPHY

Local storm report, Apr 7, 1:49 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
149 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     TORNADO          6 SW CAMDEN             36.00N 88.18W
04/07/2006                   BENTON             TN   LAW ENFORCEMENT

            TORNADO ON THE GROUND AT HADLEY ROAD AND HWY 641 NEAR
            HOLLADAY

&&

MMURPHY

Local storm report, Apr 7, 1:58 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
158 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0153 PM     TORNADO          6 SSW CAMDEN            35.98N 88.15W
04/07/2006                   BENTON             TN   AMATEUR RADIO

            TORNADO ON THE GROUND NEAR HOLLADAY AT HWY 192 AND
            LIBERTY CHURCH ROAD

&&

MMURPHY

Local storm report, Apr 7, 2:04 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
204 PM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0202 PM     HAIL             2 NW NASHVILLE          36.19N 86.81W
04/07/2006  M1.00 INCH       DAVIDSON           TN   AMATEUR RADIO

            QUARTER SIZE HAIL IN COOPERTOWN

&&

MMURPHY

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.

Nashville Metro, TN (KBNA), 12:00Z

7.1 hours before the tornado, 117 km from the path. April 7, 2006.

Skew-T log-p

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.

Hodograph

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: 1 J/kg
Mixed-layer CIN: -263 J/kg
Surface CAPE: 0 J/kg
Mixed-layer LCL: 1050 m above ground
0-6 km bulk shear: 54 kt
0-1 km bulk shear: 32 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0
0-3 km lapse rate: 5.3 K/km

Open this sounding in Storm Lab

Nashville Metro, TN (KBNA), 00:00Z

4.9 hours after it, 117 km from the path. April 8, 2006.

Skew-T log-p

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.

Hodograph

Mixed-layer CAPE: 310 J/kg
Mixed-layer CIN: -177 J/kg
Surface CAPE: 440 J/kg
Mixed-layer LCL: 1354 m above ground
0-6 km bulk shear: 65 kt
0-1 km bulk shear: 36 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7
0-3 km lapse rate: 5.1 K/km

Open this sounding in Storm Lab

The surface observations

Huntingdon (HZD), 56 km from the path, in the two hours either side.

Time (UTC)	Temp (°F)	Dew point (°F)	Wind	Gust (kt)	Pressure (mb)	Weather
00:00 UTC

From the Iowa Environmental Mesonet's archive of airport observations.

This ground now

The live radar over the track Every 2006 tornado in Tennessee Every tornado in Tennessee since 1950 Warnings in force in Tennessee now The forecast where you are

The other tornadoes of April 7, 2006

46 more were confirmed in the United States that day.

Date	Time	Rating	Where	Path (mi)	Width (yd)	Deaths	Injuries	Damage
April 7	12:40 PM CDT	F0	Benton, TN	1.1	10			$50,000
April 7	1:05 PM CDT	F0	Humphreys, TN	0.2	20			$10,000
April 7	1:10 PM CDT	F0	Humphreys, TN	0.2	20			$1,000
April 7	1:30 PM CDT	F3	Dickson, TN	18.8	880			$6.0 million
April 7	1:34 PM CDT	F2	Henderson, TN	9.0	100		5	$2.0 million
April 7	1:40 PM CDT	F1	Henderson, TN	3.5	100			$40,000
April 7	1:53 PM CDT	F2	Benton, TN	6.0	50			$250,000
April 7	2:08 PM CDT	F3	Davidson, TN	22.7	880	7	128	$79 million
April 7	2:43 PM CDT	F0	Lewis, TN	0.3	100
April 7	3:04 PM CDT	F2	Barren, KY	8.1	250		4	$1.6 million
April 7	3:35 PM CDT	F0	Union Parish, LA	6.8	250			$70,000
April 7	5:14 PM EDT	F1	Adams, IN	0.8	100			$40,000
April 7	4:36 PM CDT	F0	Leflore, MS	3.0	50
April 7	4:45 PM CDT	F1	Pike, IN	0.7	75			$120,000
April 7	4:45 PM CDT	F1	Warren, TN	11.0	150	2		$500,000
April 7	4:53 PM CDT	F0	Washington, MS	1.0	50			$100,000
April 7	4:56 PM CDT	F0	Pontotoc, MS	6.0	30			$30,000
April 7	5:43 PM CDT	F0	Humphreys, MS	1.0	30
April 7	5:46 PM CDT	F1	Cumberland, TN	6.2	150		4	$4.0 million
April 7	5:50 PM CDT	F0	Colbert, AL	0.1	50			$20,000
April 7	5:52 PM CDT	F0	Leflore, MS	1.0	50
April 7	6:14 PM CDT	F0	Lauderdale, AL	0.1	30
April 7	6:17 PM CDT	F0	Moore, TN	0.2	30
April 7	6:25 PM CDT	F1	Colbert, AL	8.0	100			$120,000
April 7	6:28 PM CDT	F1	Warren, TN	4.0	100	1		$100,000
April 7	6:30 PM CDT	F0	Lincoln, TN	0.5	50			$1,000
April 7	6:55 PM CDT	F1	Colbert, AL	10.0	100			$70,000
April 7	7:02 PM CDT	F1	Muhlenberg, KY	1.7	150			$40,000
April 7	7:05 PM CDT	F1	Limestone, AL	0.7	200			$10,000
April 7	7:35 PM CDT	F0	Chickasaw, MS	0.2	15			$10,000
April 7	7:45 PM CDT	F0	Madison, AL	0.2	50			$10,000
April 7	7:48 PM CDT	F0	Lincoln, AL to TN	2.1	30
April 7	8:01 PM CDT	F0	Lincoln, TN	0.1	30			$5,000
April 7	8:45 PM CDT	F0	Lawrence, AL	0.1	30
April 7	8:55 PM CDT	F1	Marion, AL	9.4	50			$50,000
April 7	9:00 PM CDT	F0	Franklin, AL	3.0	75			$10,000
April 7	9:30 PM CDT	F0	Lawrence, AL	0.1	50
April 7	9:55 PM CDT	F0	Sunflower, MS	3.0	50			$30,000
April 7	10:00 PM CDT	F0	Lawrence, AL	0.1	60			$10,000
April 7	10:00 PM CDT	F1	Winston, AL	4.7	150			$80,000
April 7	10:16 PM CDT	F0	Morgan, AL	1.0	50			$1,000
April 7	10:24 PM CDT	F0	Limestone, AL	0.1	40
April 7	10:35 PM CDT	F1	Morgan, AL	9.0	150			$110,000
April 7	11:15 PM CDT	F0	Marshall, AL	0.1	150			$20,000
April 7	11:50 PM CDT	F1	Cullman, AL	0.2	30			$120,000
April 7	12:44 AM CDT	F0	DeKalb, AL	0.1	85			$10,000

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.