Alert archive / Virginia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 43, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 22, 1990, 2:21 PM EDT for Floyd County, Montgomery County, Virginia. It was in force for 69 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 22, 1990, 2:21 PM EDT (18:21 UTC)
- Expired
- Jun 22, 1990, 3:30 PM EDT
- In force
- 69 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
Counties Floyd County, VA, Montgomery County, VA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 22, 3:10 PM EDT | Thunderstorm Wind 0 | Montgomery, VA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.4 hours before the alert went out and 116 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.
- Mixed-layer CAPE
- 1042 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1021 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KROA 221823 SVRROA VAC161-770-023-063-121-750-775-221930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROANOKE VA 221 PM EDT FRI JUN 22 1990 THE NATIONAL WEATHER SERVICE IN ROANOKE VAHAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL VIRGINIA ...ROANOKE COUNTY AND THE INDEPENDENT CITY OF ...ROANOKE IN SOUTHWEST VIRGINIA ...BOTETOURT COUNTY...FLOYD COUNTY...MONTGOMERY COUNTY AND THE INDEPENDENT CITIES OF ...RADFORD...SALEM A LINE OF SEVERE THUNDERSTORMS IS MOVING INTO THESE COUNTIES WITHIN THE HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Jun 22, 1:34 PM EDT, 47 minutes before
VAZ014-009-008-015-016 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VA 120 PM EDT FRI JUN 22 1990 ...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF VIRGINIA...INCLUDING CHARLOTTE AND HALIFAX COUNTIES PLUS SOUTH BOSTON UNTIL 700 PM THIS EVENING... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF THE EASTERN THIRD OF VIRGINIA AND CENTRAL THUROUGH EASTERN SECTIONS OF NORTH CAROLINA. HALIFAX AND CHARLOTTE COUNTIES PLUS THE CITY OF SOUTH BOSTON ARE INCLUDED UNDER THE WATCH AREA. AT 120 PM EDT WEATHER RADAR SHOWS THUNDERSTORMS POISED TO MOVE OUT OF NORTH CAROLINA INTO THE SOUTHEAST SECTION OF PITTSYLVANIA COUNTY AND SOUTHWEST HALIFAX COUNTY. SOME OF THE STORMS IN NORTH CAROLINA CAUSED SOME DAMAGE EARLIER DURING THEIR PASSAGE SO PERSONS IN THE NOTED COUNTIES SHOULD STAY ON THE ALERT THE NEXT FEW HOURS. ELSEWHERE...THUNDERSTORMS ARE DEVELOPING ALONG AN AREA WHICH OUT OF SOUTHWES EXTENDS FROM SOUTHWEST VIRGINIA ACROSS THE VIRGINIA COUNTIES OF GILES...WYTHE...CARROLL AND GRAYSON. THIS AREA IS MOVING EAST AT 30 MPH. PERSONS IN THE NEW RIVER VALLEY TO ROANOKE AREAS SHOULD ALSO BE ALERT THE NEXT FEW MINUTES TO THE THREAT OF THESE STORMS. THE NATIONAL WEATHER SERVICE IS CLOSELY MONITORING THIS WEATHER SITUATION SO STAY TUNED TO NOAA WEATHER COMMERCIAL RADIO/TV SOURCES FOR UPDATES OR POSSIBLE WARNINGS. END/MCINTOSH
Special weather statement, Jun 22, 2:13 PM EDT, 8 minutes before
VAZALL-222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VA 208 PM EDT FRI JUN 22 1990 ...LINE OF THUNDERSTORMS MOVING ACROSS SOUTHWEST VIRGINIA TOWARD THE ROANOKE VALLEY AREA AND SURROUNDING COUNTIES... AT 205 PM EDT WEATHER RADIO SHOWED A SOLID LINE OF THUNDERSTORMS ...SOME WITH HEAVY RAIN...EXTENDING OUT OF SOUTHERN WEST VIRGINIA NEAR BECKLEY SOUTH ACROSS SOUTHWEST VIRGINIA THROUGH THE COUNTIES OF GILES...CRAIG...MONTGOMERY...FLOYD AND CARROLL. THIS LINE OF STORMS IS MOVING EAST AT A 40 MPH CLIP. THESE STORMS WILL BE ACCOMPANIED BY GUSTY WINDS...POSSIBLE HAIL... DANGEROUS LIGHTNING...AND BRIEF BUT HEAVY DOWNPOURS DURING THEIR PASSAGE. THEY SHOULD BE ENTERING ROANOKE COUNTY THE NEXT 15 MINUTES AND PERSONS OUTDOORS...INCLUDING THOSE AT THE SALEM HORSESHOW...SHOULD MAKE IMMEDIATE PREPARATION TO GET INDOORS. SOME TREES WERE REPORTED DOWN NEAR PEARISBURG DURING THE PASSAGE OF THESE STORMS. END/MCINTOSH
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:21 PM EDT | Severe Thunderstorm Warning | RNK | Botetourt, Roanoke | 69 min |
| Jun 22, 5:59 PM EDT | Severe Thunderstorm Warning | RNK | Halifax | 61 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 1990Every severe thunderstorm warning in 1990
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.