Alert archive / Virginia / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 10, NWS Blacksburg, VA

April 25, 1989Bedford County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 25, 1989, 3:46 PM EDT for Bedford County, Virginia. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1989, 3:46 PM EDT (19:46 UTC)
Expired
Apr 25, 1989, 4:30 PM EDT
In force
44 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Bedford 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.8 hours before the alert went out and 141 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 1989-04-25Temperature 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, Greensboro/Hi Pt, NC at 12:00Z on 1989-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1580 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
85 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 25, 2:20 PM EDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROANOKE VA
220 PM EDT TUE APR 25 1989

...VERY HEAVY THUNDERSTORM IN EASTERN WEST VIRGINIA MOVING TOWARD
  VIRGINIA COUNTIES OF CRAIG AND BOTETOURT...

AT 225 PM EDT WEATHER RADAR SHOWED A VERY HEAVY THUNDERSTORM OVER
WHITE SULPHUR SPRINGS WV. THIS STORM MAY BE SEVERE AND CONTAIN HAIL
AND STRONG WINDS. IT IS EXPECTED TO MOVE INTO THE VIRGINIA COUNTIES
OF CRAIG AND BOTETOURT IN A SHORT TIME.

PERSONS IN THE AFFECTED AREA SHOULD BE PREPARED TO TAKE SHELTER AND
LISTEN TO RADIO, TV AND NOAA WEATHER RADIO FOR POSSIBLE SEVERE STORM
WARNINGS ON THIS STORM.

ANOTHER THUNDERSTORM IS DEVELOPING RAPIDLY OVER SOUTHWEST FRANKLIN
COUNTY WHILE MOVING TO THE SOUTHEAST AT 35 MPH.  RADAR INDICATES THIS
STORM MAY HAVE HAIL ASSOCIATED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 6:23 PM EDTSevere Thunderstorm WarningRNKBotetourt52 min
Apr 25, 6:56 PM EDTSevere Thunderstorm WarningRNKBedford49 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1989Every severe thunderstorm 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.