Alert archive / North Carolina / Flash Flood Warnings in 1987

Flash Flood Warning 2, NWS Blacksburg, VA

April 15, 1987Davidson County, Rowan County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Apr 15, 1987, 6:23 PM EDT for Davidson County, Rowan County, North Carolina. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 15, 1987, 6:23 PM EDT (22:23 UTC)
Expired
Apr 15, 1987, 10:00 PM EDT
In force
4 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Davidson County, NC, Rowan County, NC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.4 hours before the alert went out and 58 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, Greensboro/Hi Pt, NC at 12:00Z on 1987-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 1987-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.193958Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
277 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 4:45 PM EDTSevere Thunderstorm WarningRNKRowan60 min
Apr 15, 6:00 PM EDTSevere Thunderstorm WarningRNKDavidson, Forsyth60 min
Apr 15, 6:00 PM EDTSevere Thunderstorm WarningRNKRowan60 min
Apr 15, 7:13 PM EDTSevere Thunderstorm WarningRNKDavidson, Guilford62 min

Nearby

Flash Flood Warnings in North Carolina, 1987Every flash flood warning in 1987

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.