Alert archive / Virginia / Flash Flood Warnings in 1989

Flash Flood Warning 21, NWS Morristown, TN

September 22, 1989Buchanan County, Virginia

NWS Morristown, TN issued this flash flood warning at Sep 22, 1989, 11:42 AM EDT for Buchanan County, Virginia. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Sep 22, 1989, 11:42 AM EDT (15:42 UTC)
Expired
Sep 22, 1989, 4:12 PM EDT
In force
5 hr
Issued by
NWS Morristown, TN
Area
Whole counties

County Buchanan County, VA

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

Huntington/Tri S, WV (KHTS), launched 12:00Z, 3.7 hours before the alert went out and 129 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, Huntington/Tri S, WV at 12:00Z on 1989-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Huntington/Tri S, WV at 12:00Z on 1989-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.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.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
885 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
299 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 Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 22, 9:26 AM EDTFlash Flood WarningMRXSmyth4 hr
Sep 22, 10:05 AM EDTFlash Flood WarningMRXWashington6 hr
Sep 22, 11:27 AM EDTFlash Flood WarningMRXDickenson, Russell5 hr
Sep 22, 11:27 AM EDTFlash Flood WarningMRXTazewell5 hr
Sep 22, 3:46 PM EDTFlash Flood WarningMRXSmyth4 hr

Nearby

Flash Flood Warnings in Virginia, 1989Every flash flood warning in 1989

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.