Alert archive / North Carolina / Tornado Warnings in 1991

Tornado Warning 4, NWS Newport/Morehead City, NC

March 29, 1991Pasquotank County, Perquimans County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Mar 29, 1991, 7:18 PM EST for Pasquotank County, Perquimans County, North Carolina. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Mar 29, 1991, 7:18 PM EST (00:18 UTC)
Expired
Mar 29, 1991, 7:45 PM EST
In force
27 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

Counties Pasquotank County, NC, Perquimans County, NC

The nearest sounding before it

Cape Hatteras, NC (KHAT), launched 00:00Z, 0.3 hours before the alert went out and 130 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Cape Hatteras, NC at 00:00Z on 1991-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 321 joules per kilogram.LCLLFCEL10008507005003002001001 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.
HodographHodograph, Cape Hatteras, NC at 00:00Z on 1991-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 413 square meters per square second.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.
Mixed-layer CAPE
321 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
413 m²/s²
0-3 km storm-relative helicity
465 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KHAT 300021
TORHAT
NCC041-139-143-300045-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CAPE HATTERAS NC
718 PM EST FRI MAR 29 1991
 
THE NATIONAL WEATHER SERVICE IN CAPE HATTERAS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  750 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NORTH CAROLINA
 
   ...CHOWAN COUNTY...PASQUOTANK COUNTY...PERQUIMANS COUNTY
 
WEATHER RADAR INDICATES A POSSIBLE TORNADO CURRENTLY OVER THE MOUTH OF
THE CHOWAN RIVER MOVING NORTHEAST AT 50 MILES AN HOUR. THIS COURSE
WILL TAKE IT OVER CHOWAN...PERQUIMANS AND PASQUOTANK COUNTIES DURING
THE NEXT HALF HOUR.
 
TORNADOES WHICH OCCUR AFTER DARK ARE ESPECIALLY DANGEROUS. GET TO A
PLACE OF SAaFETY NOW. STAY AWAY FROM DOORS AND WINDOWS. GET OUT OF
MOBILE HOMES AND CARS. IF DAMAGE OCCURS NEAR YOU...DO NOT ATTEMPT TO
WALK AROUND IN THE DARK. THERE MAY BE DOWNED POWER LINES AND OTHER
HAZARDS THAT CANNOT BE SEEN.

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 7:18 PM ESTTornado WarningMHXChowan27 min
Mar 29, 8:05 PM ESTSevere Thunderstorm WarningMHXTyrrell, Washington40 min
Mar 29, 9:22 PM ESTSevere Thunderstorm WarningMHXTyrrell53 min
Mar 29, 9:22 PM ESTSevere Thunderstorm WarningMHXDare53 min

Nearby

Tornado Warnings in North Carolina, 1991Every tornado warning in 1991Tornadoes in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.