Tornadoes · United States · North Carolina · 2004

F0 tornado, Rose Bay, North Carolina, August 14, 2004

This F0 tornado ran 0.2 miles across Hyde County on August 14, 2004, touching down at 3:40 PM EDT and reaching 20 yards wide. It killed nobody.

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 mphthis tornado

    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 mph

    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
F0
Date
August 14, 2004
Touchdown
3:40 PM EDT (19:40 UTC)
Path length
0.2 miles (0.3 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
County
Hyde County
Touchdown point
35.470, -76.380
Lift-off point
35.470, -76.380
Record number
1609

What the Weather Service recorded

Tropical Storm Charley moved northeast across the Coastal Plains of Eastern North Carolina during the afternoon hours on August 14th. Onslow county received the most damage, with estimates over 5 million dollars, as winds gusted to near hurricane force toppling trees and power lines with structural damage to homes and businesses. Winds gusted from 60-70 mph across Inland areas near the center of the storm resulting in wind damage to structures, and damage to crops reaching into the millions. Winds gusted from 40 to 50 mph across locations across Eastern North Carolina with minor wind damage reported. Storm surge values were highest along the Onslow County coastline where a 2 to 3 foot surge was estimated, and 8 foot waves caused minor beach erosion along the south facing beaches. Water levels rose up to 2 feet across the lower reaches of the Neuse and the Pamlico Rivers, and across the Outer Banks. Storm total rainfall, estimated between 4 to 6 inches, occurred across a large part of the area resulting in freshwater flooding in 7 counties across the Coastal Plains. Five weak tornadoes were reported across the area associated with Charley with damage reported. The most significant damage related to a tornado occurred along the Outer Banks in Nags Head.

Law enforcement reported several waterspouts, one of which moved onshore as a weak tornado.

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

The warnings

13 minutes of warning. NWS MHX issued a tornado warning for this county at 19:27 UTC, 13 minutes before the tornado touched down, in force until 20:00 UTC.

Issued (UTC)ExpiredProductOffice
19:27 UTC20:00 UTCTornado WarningMHX

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, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 16:30 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.

Newport, NC (KMHX), 12:00Z

7.7 hours before the tornado, 89 km from the path. August 14, 2004.

Skew-T log-pSkew-T log-p diagram, Newport, NC at 12:00Z on 2004-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1472 joules per kilogram, CIN -4, lifted condensation level 627 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, Newport, NC at 12:00Z on 2004-08-14The 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 125 square meters per square second, 0 to 6 km bulk shear 29 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
1472 J/kg
Mixed-layer CIN
-4 J/kg
Surface CAPE
1360 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
29 kt
0-1 km bulk shear
22 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.0
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Newport, NC (KMHX), 00:00Z

4.3 hours after it, 89 km from the path. August 15, 2004.

Skew-T log-pSkew-T log-p diagram, Newport, NC at 00:00Z on 2004-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 46 joules per kilogram, CIN -104, lifted condensation level 741 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, Newport, NC at 00:00Z on 2004-08-15The 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 32 square meters per square second, 0 to 6 km bulk shear 26 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
46 J/kg
Mixed-layer CIN
-104 J/kg
Surface CAPE
105 J/kg
Mixed-layer LCL
741 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
114 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

The surface observations

Washington/Warren_field_aprt (OCW), 62 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
17:40 UTC73.471.640° 6 kt1018.6-RA
18:02 UTC73.471.650° 9 kt1017.3-RA
18:21 UTC73.471.650° 12 kt171015.6
19:00 UTC73.471.660° 15 kt271012.5+RA
19:22 UTC73.471.690° 21 kt261012.5+RA
20:01 UTC78.875.2120° 29 kt501008.1

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

The radar

The Morehead City radar (KMHX), 89 km away, was scanning. The volume nearest the touchdown began at 19:38 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 2004 tornado in North CarolinaEvery tornado in North Carolina since 1950Warnings in force in North Carolina nowThe forecast where you are

The other tornadoes of August 14, 2004

13 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 1410:05 AM EDTF0Berkeley, SC3.550
August 1412:05 PM EDTF0Hernando, FL3.040
August 141:30 PM EDTF0Onslow, NC0.120$10,000
August 142:10 PM EDTF0Pasco, FL1.030
August 1412:18 PM PDTF0San Bernardino, CA1.0200
August 1412:40 PM PDTF0San Bernardino, CA1.0800
August 144:00 PM EDTF0Pitt, NC0.120$10,000
August 144:15 PM EDTF0Tyrrell, NC0.120$10,000
August 145:41 PM EDTF0Levy, FL1.030
August 145:55 PM EDTF0City of Chesapeake, VA0.115$10,000
August 146:15 PM EDTF1Dare, NC0.230$230,000
August 146:42 PM MDTF0Bent, CO0.530
August 147:32 PM MDTF0Quay, NM0.150

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.