Tornadoes · United States · Alabama · 2014

EF1 tornado, Adamsburg to Fisher Xrds, Alabama, April 29, 2014

From Adamsburg to Fisher Xrds, this EF1 tornado ran 1.1 miles across DeKalb County on April 29, 2014, touching down at 2:23 AM CDT and reaching 200 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 mph

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

  2. EF186 to 110 mphthis tornado

    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
EF1
Date
April 29, 2014
Touchdown
2:23 AM CDT (07:23 UTC)
Lifted
2:25 AM CDT (07:25 UTC)
On the ground
2 minutes
Path length
1.1 miles (1.7 km)
Path width
200 yards (183 m)
Deaths
0
Injuries
0
County
DeKalb County
Touchdown point
34.428, -85.647
Lift-off point
34.440, -85.635
Record number
1404290123-01

The damage survey

64 damage points were recorded along this path by NWS HUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 115 mph.

  • Two commerical structures were damaged. At first building, roof collapsed -- bay doors appeared to be opened during storm. At second building, a bay door was blown in, leading to exterior wall/roof damage. No other damage was seen around this location -- hence the decision that this was related to straight-line thunderstorm winds.

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 tornado outbreak occurred during the late afternoon and evening across the central Tennessee Valley on the 28th. Several cyclic supercells produced tornadoes, some of which were strong. Very heavy rainfall occurred in some areas as well. In particular, up to 5 inches fell in just a few hours which led to severe flash flooding in Valley Head.|An additional round of thunderstorms late in the day/evening of the 29th produced a few reports of damaging winds and hail.

Damage was first noted just south of Bird Dog Trail at the southern end of a large farmstead. Numerous trees were snapped and uprooted and a large 40 by 50 feet barn was destroyed. This brief tornado appeared to be at its peak intensity near this location with estimated winds of 100 mph. It should be noted that the barn damage was cleaned up at the time of the survey, but the homeowner confirmed the barn had totally collapsed. Several trees were snapped adjacent to the west side of a house which had no major damage. The short lived tornado moved northeast with additional trees snapped or uprooted just across Bird Dog Trail (north side). Two by fours and tin from the barn was seen here on the ground and in the trees. The homeowner also noted that tin from the barn was seen here on the ground and in the trees. The homeowner also noted that tin from the barn roof was tossed to at least the end of the tree line, which is approximately 1/3 of a mile away. The tornado then crossed a rural/forested area to the intersection of Pumpkin Center Road and CR 153/Fletcher Road. Small to medium sized branches were brought down at the southwest corner of this intersection. No additional damage was seen downstream from this location but very limited road access existed.

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

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 Huntsville, AL wrote its last area forecast discussion before the tornado touched down at Apr 29, 12:21 AM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Apr 29, 12:21 AM CDT, 2 hours 2 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1221 AM CDT TUE APR 29 2014

.UPDATE...
FOR 06Z TAFS

&&

.DISCUSSION...
/ISSUED 911 PM CDT MON APR 28 2014/
BUSY WEATHER NIGHT CONTINUES. NUMEROUS TORNADIC SUPERCELLS HAVE BEEN
SEEN ACROSS THE COUNTY WARNING AREA THIS EVENING...WITH A LOT OF
DAMAGE BEING REPORTED. THE COLD FRONT IS STILL BACK TOWARDS THE MS
RIVER AND WILL BE THE FOCUS FOR TOMORROWS ROUND OF STORMS. CURRENT
RADAR SHOWS THE LINE OF STORMS EXTENDING FROM FRANKLIN COUNTY TN
THROUGH JACKSON COUNTY AL DOWN TO CULLMAN COUNTY MOVING EAST
NORTHEAST. THE SEVERE THREAT HAS DIMINISHED FOR AREAS I-65 AND WEST
WHILE THE SEVERE THREAT WILL CONTINUE FOR THE NEXT SEVERAL HOURS
I-65 AND EAST. AS THE SEVERE THREAT BEGINS TO DIMINISH...THE THREAT
FOR EXTENSIVE FLASH FLOODING WILL LINGER THROUGH DAY BREAK AS CELLS
REPEATEDLY TRAIN FROM SW TO NE ACROSS EASTERN PORTIONS OF THE AREA.

FOR THE UPDATE TONIGHT...AFTER MIDNIGHT UPDATED THE POPS AND WX GRIDS
TO ACCOUNT FOR SEVERE WEATHER MOVING OUT OF THE CWA. POPS WERE
REDUCED THROUGH DAYBREAK TO ACCOUNT FOR SCATTERED SHOWERS /POSSIBLY A
RUMBLE OF THUNDER AS WELL/ OVER NW AL. QPF WAS ADJUSTED TO FOLLOW
SUIT.

UPDATED PRODUCTS WILL BE SENT SHORTLY.

JMS

&&

.AVIATION...
FOR 06Z TAFS...CONVECTION WILL CONTINUE TO DIMINISH ACROSS THE TAF
SITES AS AN UPPER DISTURBANCE MOVES EAST OF THE CWA OVERNIGHT.
HOWEVER AS A CDFNT APPROACHES THE AREA TUESDAY MRNG/AFTN THE CHC OF
SHRA/TSRA WILL INCREASE OVER THE TN VALLEY ESPECIALLY TUESDAY
AFTN/EVENING. OTHERWISE VFR WITH OCCASIONAL MVFR WILL BE POSSIBLE
THRU THE FCST PERIOD.

07

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...FLASH FLOOD WATCH UNTIL 7 AM CDT THIS MORNING FOR ALZ001>010-016.

TN...FLASH FLOOD WATCH UNTIL 7 AM CDT THIS MORNING FOR TNZ076-096-097.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.
Hazardous weather outlook, Apr 28, 11:46 PM CDT, 2 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1146 PM CDT MON APR 28 2014

ALZ001>010-016-TNZ076-096-097-291300-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
1146 PM CDT MON APR 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...OVERNIGHT...

THE THREAT OF SEVERE WEATHER WILL CONTINUE TO DIMINISH FROM WEST TO
EAST ACROSS THE TENNESSEE VALLEY. DEKALB...CULLMAN AND MARSHALL
COUNTIES STILL HAVE THE CHANCE OF SEVERE THUNDERSTORMS ALONG WITH A
FEW TORNADOES. THE SEVERE THREAT OVER THESE COUNTIES WILL DIMINISH
AROUND 2 AM. HEAVY RAIN WILL ALSO TAPER OFF FROM WEST TO EAST
OVERNIGHT BUT RUNOFF WILL STILL CAUSE FLOODING CONCERNS. AS A RESULT
THE FLASH FLOOD WATCH WILL CONTINUE THROUGH 7 AM TUESDAY MORNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

ONE FINAL ROUND OF THUNDERSTORMS IS EXPECTED ALONG A COLD FRONT AS
IT MOVES ACROSS THE AREA TUESDAY AFTERNOON AND EVENING. STRONG TO
SEVERE STORMS ARE AGAIN EXPECTED DURING THE AFTERNOON AND
EVENING...WITH DAMAGING WINDS...LARGE HAIL...AND TORNADOES POSSIBLE.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
ONGOING OVER CULLMAN...MARSHALL AND DEKALB COUNTIES. ACTIVATION OF
STORM SPOTTER WILL LIKELY BE NEEDED BY TUESDAY AFTERNOON AND
EVENING.

In the hours before

Local storm report, Apr 29, 12:00 AM CDT, 2 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1200 AM CDT TUE APR 29 2014

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

0329 PM     HAIL             RED BAY                 34.44N 88.14W
04/28/2014  E0.88 INCH       FRANKLIN           AL   FIRE DEPT/RESCUE

            NICKEL SIZED HAIL WAS REPORTED.

0330 PM     HAIL             2 E HALLTOWN            34.45N 88.03W
04/28/2014  E1.00 INCH       FRANKLIN           AL   EMERGENCY MNGR

            QUARTER SIZED HAIL WAS REPORTED.

0330 PM     TSTM WND DMG     RED BAY                 34.44N 88.14W
04/28/2014                   FRANKLIN           AL   EMERGENCY MNGR

            MULTIPLE REPORTS OF TREES DOWN...SOME ON BUILDINGS...AND
            POWER POLES DOWN. ONE WOMAN WAS TRAPPED IN HER HOUSE...NO
            INJURIES REPORTED.

0344 PM     HAIL             BELGREEN                34.47N 87.87W
04/28/2014  E1.00 INCH       FRANKLIN           AL   EMERGENCY MNGR

            QUARTER SIZED HAIL WAS REPORTED.

0358 PM     FUNNEL CLOUD     RUSSELLVILLE            34.51N 87.73W
04/28/2014                   FRANKLIN           AL   BROADCAST MEDIA

            A FUNNEL CLOUD WAS REPORTED NEAR RUSSELLVILLE.

0359 PM     TSTM WND DMG     2 NNW RUSSELLVILLE      34.53N 87.74W
04/28/2014                   FRANKLIN           AL   EMERGENCY MNGR

            MULTIPLE TREES AND POWERLINES DOWN NORTHWEST OF
            RUSSELLVILLE HIGH SCHOOL.

0400 PM     FUNNEL CLOUD     5 N NORTH COURTLAND     34.74N 87.33W
04/28/2014                   LAWRENCE           AL   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED A WALL CLOUD NORTH OF COURTLAND

0400 PM     TORNADO          2 NNW RUSSELLVILLE      34.53N 87.74W
04/28/2014                   FRANKLIN           AL   STORM CHASER

            STORM CHASER REPORTED A TORNADO ON THE GROUND NORTHWEST
            OF RUSSELLVILLE.

0404 PM     HAIL             5 ENE PHIL CAMPBELL     34.37N 87.62W
04/28/2014  E1.00 INCH       FRANKLIN           AL   EMERGENCY MNGR

            QUARTER SIZED HAIL WAS REPORTED IN EAST FRANKLIN
            COMMUNITY.

0410 PM     TORNADO          8 W LEIGHTON            34.70N 87.67W
04/28/2014                   COLBERT            AL   TRAINED SPOTTER

            A TORNADO WAS REPORTED BY A TRAINED SPOTTER AT THIS
            LOCATION.

0412 PM     HAIL             4 NNW LEIGHTON          34.76N 87.56W
04/28/2014  E0.25 INCH       COLBERT            AL   EMERGENCY MNGR

            DIME SIZED HAIL WAS REPORTED IN NITRATE CITY.

0417 PM     HAIL             4 NNW LEIGHTON          34.76N 87.56W
04/28/2014  E0.50 INCH       COLBERT            AL   EMERGENCY MNGR

            DIME SIZED HAIL WAS REPORTED.

0426 PM     FUNNEL CLOUD     5 SSW TOWN CREEK        34.62N 87.42W
04/28/2014                   LAWRENCE           AL   EMERGENCY MNGR

            FUNNEL CLOUD REPORTED ON COUNTY ROAD 449.

0433 PM     TSTM WND DMG     5 NNW TOWN CREEK        34.75N 87.44W
04/28/2014                   COLBERT            AL   EMERGENCY MNGR

            TREES WERE REPORTED DOWN ACROSS RIVER ROAD AND MT STANLEY
            ROAD.

0437 PM     TORNADO          5 N NORTH COURTLAND     34.74N 87.33W
04/28/2014                   LAWRENCE           AL   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED A TORNADO ON THE GROUND NORTH OF
            COURTLAND.

0453 PM     TSTM WND DMG     5 SE ROGERSVILLE        34.78N 87.22W
04/28/2014                   LIMESTONE          AL   EMERGENCY MNGR

            DAMAGE REPORTED AT BAY HILL MARINA

0500 PM     HEAVY RAIN       2 W LITTLEVILLE         34.59N 87.71W
04/28/2014  E0.00 INCH       COLBERT            AL   EMERGENCY MNGR

            WATER OF UNKNOWN DEPTH NEAR FAME RANCH.

0507 PM     FUNNEL CLOUD     ATHENS                  34.80N 86.97W
04/28/2014                   LIMESTONE          AL   AMATEUR RADIO

            WALL CLOUD AND HEAVY ROTATION REPORTED SOUTH OF ATHENS.

0512 PM     HAIL             ATHENS                  34.80N 86.97W
04/28/2014  E1.75 INCH       LIMESTONE          AL   TRAINED SPOTTER

            GOLF BALL SIZED HAIL WAS REPORTED NORTH OF ATHENS.

0512 PM     HAIL             ROGERSVILLE             34.83N 87.29W
04/28/2014  E0.50 INCH       LAUDERDALE         AL   TRAINED SPOTTER

            DIME SIZED HAIL REPORTED.

0515 PM     TSTM WND DMG     2 W ATHENS              34.80N 87.01W
04/28/2014                   LIMESTONE          AL   AMATEUR RADIO

            6 FOOT WIDE OAK TREE BLOWN OVER AND POWER LINES DOWN.

0521 PM     HAIL             ELKMONT                 34.93N 86.98W
04/28/2014  E2.75 INCH       LIMESTONE          AL   EMERGENCY MNGR

            BASEBALL SIZED HAIL WAS REPORTED.

0524 PM     HAIL             1 SW ELKMONT            34.91N 86.99W
04/28/2014  E1.75 INCH       LIMESTONE          AL   AMATEUR RADIO

            QUARTER TO GOLFBALL SIZED HAIL WAS REPORTED AT SULPHUR
            CREEK ROAD.

0525 PM     HAIL             ATHENS                  34.80N 86.97W
04/28/2014  E2.75 INCH       LIMESTONE          AL   PUBLIC

            BASEBALL SIZED HAIL WAS REPORTED.

0528 PM     HAIL             2 NNW ATHENS            34.83N 86.98W
04/28/2014  E1.00 INCH       LIMESTONE          AL   TRAINED SPOTTER

            PENNY TO QUARTER SIZED HAIL WAS REPORTED AT AIRPORT ROAD.

0534 PM     TSTM WND DMG     HAZEL GREEN             34.93N 86.57W
04/28/2014                   MADISON            AL   PUBLIC

            TREES AND POWERLINES REPORTED DOWN ALONG WITH STRUCTURAL
            DAMAGE.

0550 PM     TSTM WND DMG     2 NNE RIPLEY            34.79N 87.11W
04/28/2014                   LIMESTONE          AL   TRAINED SPOTTER

            PARTIAL ROOF TORN OFF OF A HOME.

0605 PM     TSTM WND DMG     4 NNE HARVEST           34.90N 86.71W
04/28/2014                   MADISON            AL   AMATEUR RADIO

            TWO LARGE TREES DOWN AND DEBRIS REPORTED.

0605 PM     TSTM WND DMG     4 WNW HAZEL GREEN       34.95N 86.64W
04/28/2014                   MADISON            AL   PUBLIC

            TREES AND POWERLINES DOWN.

0615 PM     FLASH FLOOD      RED BANK                34.77N 87.37W
04/28/2014                   LAWRENCE           AL   LAW ENFORCEMENT

            COUNTY ROADS 270, 101, 150, AND 271 ARE CLOSED. COUNTY
            ROADS 270 AND 271 HAVE BETWEEN 6-8 INCHES OF WATER
            REPORTED COVERING THE ROADS. FISHERMAN RESORT HAS
            REPORTED EXTREME FLOODING.

0615 PM     TSTM WND DMG     3 ESE ELKWOOD           34.96N 86.68W
04/28/2014                   MADISON            AL   AMATEUR RADIO

            LARGE TREE DOWN ON BOBO SECTION ROAD.

0617 PM     TSTM WND DMG     5 WNW HAZEL GREEN       34.96N 86.64W
04/28/2014                   MADISON            AL   EMERGENCY MNGR

            MOBLE HOME DAMAGE WAS REPORTED.

0620 PM     TSTM WND DMG     WSW LINCOLN             35.01N 86.51W
04/28/2014                   LINCOLN            TN   AMATEUR RADIO

            POWERLINES DOWN...AND TREES DOWN. OLD LINCOLN ROAD AND
            LINCOLN ROAD INTERSECTION IMPASSIBLE.

0622 PM     TSTM WND DMG     HAZEL GREEN             34.93N 86.57W
04/28/2014                   MADISON            AL   NWS EMPLOYEE

            2 BRADFORD PEARS WERE REPORTED DOWN ON RETRIEVER RUN.

0624 PM     TSTM WND DMG     W LINCOLN               35.02N 86.51W
04/28/2014                   LINCOLN            TN   EMERGENCY MNGR

            WIND DAMAGE REPORTED FROM LINCOLN ROAD TO FLINTVILLE.
            POSSIBLE TORNADO DAMAGE.

0627 PM     TSTM WND DMG     3 SSW FLINTVILLE        35.03N 86.44W
04/28/2014                   LINCOLN            TN   AMATEUR RADIO

            STRUCTURAL DAMAGE WAS REPORTED ON STEWART CHAPEL ROAD.

0637 PM     HEAVY RAIN       4 NNE LITTLEVILLE       34.64N 87.65W
04/28/2014  E0.00 INCH       COLBERT            AL   EMERGENCY MNGR

            WATER OF UNKNOWN DEPTH COVERING THE INTERSECTION OF HWY
            34 AND BLUE ROAD.

0646 PM     HAIL             2 W MADISON             34.70N 86.79W
04/28/2014  E0.50 INCH       MADISON            AL   TRAINED SPOTTER

            DIME SIZED HAIL WAS REPORTED AT MILL ROAD AND COUNTYLINE
            ROAD.

0703 PM     TSTM WND DMG     5 NW HUNTLAND           35.10N 86.34W
04/28/2014                   LINCOLN            TN   TRAINED SPOTTER

            STRUCTURAL DAMAGE REPORTED AT SHADY GROVE ROAD AND HOTEL
            ROAD.

0731 PM     TSTM WND DMG     4 W ATHENS              34.80N 87.04W
04/28/2014                   LIMESTONE          AL   AMATEUR RADIO

            TREE REPORTED DOWN ON A HOUSE ON BLACKBURN LANE.

0745 PM     LIGHTNING        5 NNE UNDERWOOD-PETERSV 34.93N 87.66W
04/28/2014                   LAUDERDALE         AL   UNKNOWN

            STRUCTURE FIRE CAUSED BY LIGHTNING AT COUNTY ROAD 224.

0750 PM     FLASH FLOOD      1 SSW HUNTLAND          35.04N 86.27W
04/28/2014                   FRANKLIN           TN   TRAINED SPOTTER

            4 TO 5 INCHES OF WATER REPORTED ON OAKWOOD DRIVE.

0757 PM     FLASH FLOOD      FAYETTEVILLE            35.15N 86.56W
04/28/2014                   LINCOLN            TN   AMATEUR RADIO

            SEVERAL ROADS WERE DEEMED IMPASSIBLE ACROSS LINCOLN
            COUNTY.

0830 PM     TORNADO          SMITHLAND               35.12N 86.39W
04/28/2014                   LINCOLN            TN   AMATEUR RADIO

            SIGNIFICANT STRUCTURAL DAMAGE WAS REPORTED AT SOUTH
            LINCOLN SCHOOL AND IN A SUBDIVISION NORTHWEST OF THE
            SCHOOL.

0845 PM     TORNADO          2 W CRYSTAL SPRINGS     35.07N 86.50W
04/28/2014                   LINCOLN            TN   TRAINED SPOTTER

            ALL HOMES GONE ON PRICE LANE AND HOWELL HILL ROAD...9
            MILES NORTH OF THE STATE LINE AT CROSSROAD CEMETARY.

0909 PM     FUNNEL CLOUD     ARKADELPHIA             33.91N 86.96W
04/28/2014                   CULLMAN            AL   EMERGENCY MNGR

            FUNNEL CLOUD REPORTED NEAR ARKADELPHIA. ALSO RECEIVED
            POWER OUTAGE REPORTS IN THE AREA.

0944 PM     TSTM WND GST     CROSSVILLE              34.29N 85.99W
04/28/2014  E60.00 MPH       DEKALB             AL   TRAINED SPOTTER

            QUARTER SIZED HAIL WAS ALSO REPORTED AT THIS LOCATION.

0945 PM     TORNADO          HOLLY POND              34.17N 86.62W
04/28/2014                   CULLMAN            AL   TRAINED SPOTTER

            TORNADO REPORTED ON THE GROUND NEAR HWY 278.

0946 PM     TORNADO          5 NE PHELAN             34.18N 86.74W
04/28/2014                   CULLMAN            AL   EMERGENCY MNGR

            TORNADO REPORTED ON THE GROUND IN THE BERLIN COMMUNITY.

1006 PM     TSTM WND DMG     5 NNE HANCEVILLE        34.14N 86.74W
04/28/2014                   CULLMAN            AL   BROADCAST MEDIA

            TREES REPORTED DOWN ALONG WITH OTHER SMALL DEBRIS.

1008 PM     TSTM WND DMG     3 WSW FAIRVIEW          34.22N 86.73W
04/28/2014                   CULLMAN            AL   BROADCAST MEDIA

            POWERLINES DOWN IN THE SIMCOE COMMUNITY.

&&

KWEBER
Local storm report, Apr 29, 12:34 AM CDT, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1234 AM CDT TUE APR 29 2014

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

1229 AM     HEAVY RAIN       BOAZ                    34.20N 86.16W
04/29/2014  E0.00 INCH       MARSHALL           AL   TRAINED SPOTTER

            FOUR TO FIVE INCHES OF WATER OVER SEVERAL ROADS IN THE
            BOAZ COMMUNITY.

&&

KWEBER
Local storm report, Apr 29, 1:05 AM CDT, 1 hour 18 minutes before
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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.

Peachtre/Fal Fld, GA (KFFC), 00:00Z

7.4 hours before the tornado, 158 km from the path. April 29, 2014.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2014-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1978 joules per kilogram, CIN -7, lifted condensation level 1007 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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, Peachtre/Fal Fld, GA at 00:00Z on 2014-04-29The 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 175 square meters per square second, 0 to 6 km bulk shear 40 knots.193958Sfc1 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
1978 J/kg
Mixed-layer CIN
-7 J/kg
Surface CAPE
2492 J/kg
Mixed-layer LCL
1007 m above ground
0-6 km bulk shear
40 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
2.7
Supercell composite
13.0
0-3 km lapse rate
6.4 K/km

Open this sounding in Storm Lab

The surface observations

Fort_payne (4A9), 9 km from the path, in the two hours either side.

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

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

The radar

The Northeast Alabama radar (KHTX), 68 km away, was scanning. The volume nearest the touchdown began at 07:23 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 2014 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of April 29, 2014

11 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 291:06 AM CDTEF2DeKalb, AL11.7200
April 291:17 AM CDTEF1Etowah, AL6.3200
April 291:28 AM CDTEF0DeKalb, AL2.475
April 291:36 AM CDTEF1DeKalb, AL10.2200
April 293:25 AM CDTEF0Macon, AL1.775
April 293:56 AM CDTEF3Lee, AL11.41,20013
April 292:25 PM EDTEF0Craven, NC0.025
April 293:52 PM EDTEF1Cumberland, NC1.7200$50,000
April 296:09 PM EDTEF0Edgecombe, NC4.2100$25,000
April 297:49 PM EDTEF0Greene, NC0.025
April 298:10 PM EDTEF1Sampson, NC0.8100$355,000

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.