Alert archive / Virginia / Flash Flood Warnings in 1993
Flash Flood Warning 22, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Jul 1, 1993, 11:00 PM EDT for Roanoke County, Virginia. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 1, 1993, 11:00 PM EDT (03:00 UTC)
- Expired
- Jul 2, 1993, 12:00 AM EDT
- In force
- 60 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Roanoke County, VA
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.0 hours before the alert went out and 126 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
- 1339 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1271 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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 flash flood 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, Jul 1, 8:50 PM EDT, 2 hours 10 minutes before
VAZ009-013-014-015-016-020145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 847 PM EDT THU JUL 1 1993 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM TONIGHT FOR PARTS OF SOUTHWEST AND WEST CENTRAL VIRGINIA... AT 845 PM RADAR SHOWED SCATTERED STRONG THUNDERSTORMS ALONG THE NEW RIVER VALLEY ACROSS THE BLUE RIDGE INTO PATRICK COUNTY. THESE STORMS WERE MOVING TO THE EAST TO SOUTHEAST AROUND 15 MPH. OTHER STRONG STORMS IN SOUTHEAST WEST VIRGINIA NEAR LEWISBURG WERE MOVING TO THE SOUTHEAST AT 20 MPH...AND AT THEIR PRESENT MOVEMENT WILL MOVE INTO NORTHERN CRAIG COUNTY AROUND 900 PM. THESE STORMS NEAR LEWISBURG PRODUCED WIND DAMAGE EARLIER THIS EVENING AS THEY PASSED THROUGH SOUTHEAST WEST VIRGINIA. THE SLOW MOVEMENT OF THESE STORMS IS PRODUCING SOME HEAVY DOWNPOURS. MANY LOCATIONS HAVE RECEIVED NEAR AN INCH OF RAIN IN LESS THAN AN HOUR ...CRITZ IN EASTERN PATRICK COUNTY HAD NEARLY ONE AND THREE QUARTERS INCHES IN LESS THAN 2 HOURS. MOTORISTS SHOULD WATCH FOR FLOODING OF LOW LYING AREAS ALONG ROADWAYS. PEOPLE IN THE WATCH AREA SHOULD REMAIN ALERT TO THE WEATHER THIS EVENING. NO SEVERE WEATHER HAS BEEN REPORTED TO THE ROANOKE WEATHER OFFICE...BUT THESE STORMS COULD STILL PRODUCE DAMAGING WINDS OR LARGE HAIL AT ANY TIME. MONITOR NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS. JACKSON
Special weather statement, Jul 1, 9:34 PM EDT, 1 hour 26 minutes before
VAZ009-013-014-015-016-020230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 934 PM EDT THU JUL 1 1993 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT FOR PARTS OF SOUTHWEST AND WEST CENTRAL VIRGINIA... NATIONAL WEATHER SERVICE RADAR AT 930 PM SHOWED A BAND OF STRONG THUNDERSTORMS THAT EXTENDED FROM NORTHEAST MONTGOMERY COUNTY THROUGH CRAIG...AND INTO NORTHWEST BOTETOURT COUNTY. THESE STORMS WERE MOVING TO THE EAST AT 15 TO 20 MPH...AND THEY WILL BE MOVING INTO ROANOKE COUNTY SOON...REACHING THE CITIES OF SALEM AND ROANOKE AROUND 10 PM. THEY WILL ALSO BE MOVING THROUGH BOTETOURT COUNTY DURING THE NEXT HOUR. PEOPLE IN THE PATH OF THESE STORMS CAN EXPECT TORRENTIAL DOWNPOURS AND FREQUENT LIGHTNING...POSSIBLY STRONG WINDS AND HAIL. OTHER STRONG STORMS WERE OVER WESTERN FRANKLIN COUNTY...AND EXTENDED FROM THE MARTINSVILLE AREA WEST INTO PATRICK COUNTY. THESE STORMS WERE MOVING TO THE SOUTH AT 10 TO 15 MPH. JACKSON
Special weather statement, Jul 1, 9:38 PM EDT, 1 hour 22 minutes before
VAZ009-013-014-015-016-020230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 934 PM EDT THU JUL 1 1993 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT FOR PARTS OF SOUTHWEST AND WEST CENTRAL VIRGINIA... NATIONAL WEATHER SERVICE RADAR AT 930 PM SHOWED A BAND OF STRONG THUNDERSTORMS THAT EXTENDED FROM NORTHEAST MONTGOMERY COUNTY THROUGH CRAIG...AND INTO NORTHWEST BOTETOURT COUNTY. THESE STORMS WERE MOVING TO THE EAST AT 15 TO 20 MPH...AND THEY WILL BE MOVING INTO ROANOKE COUNTY SOON...REACHING THE CITIES OF SALEM AND ROANOKE AROUND 10 PM. THEY WILL ALSO BE MOVING THROUGH BOTETOURT COUNTY DURING THE NEXT HOUR. PEOPLE IN THE PATH OF THESE STORMS CAN EXPECT TORRENTIAL DOWNPOURS AND FREQUENT LIGHTNING...POSSIBLY STRONG WINDS AND HAIL. OTHER STRONG STORMS WERE OVER WESTERN FRANKLIN COUNTY...AND EXTENDED FROM THE MARTINSVILLE AREA WEST INTO PATRICK COUNTY. THESE STORMS WERE MOVING TO THE SOUTH AT 10 TO 15 MPH. JACKSON
Special weather statement, Jul 1, 10:26 PM EDT, 34 minutes before
VAZ009-013-014-015-016-020330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 1026 PM EDT THU JUL 1 1993 ...NEARLY STATIONARY THUNDERSTORM PRODUCING TORRENTIAL RAIN IN NORTHWEST ROANOKE COUNTY... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM FOR PARTS OF SOUTH WEST AND WEST CENTRAL VIRGINIA... AT 1020 PM RADAR SHOWED A STRONG THUNDERSTORM OVER NORTHWEST ROANOKE COUNTY JUST TO THE NORTH OF DIXIE CAVERNS IN THE BRADSHAW AREA. THIS STORM HAD BEEN NEARLY STATIONARY DURING THE PAST HOUR...AND HAS DUMPED ALMOST 2.5 INCHES OF RAIN IN THE LAST HOUR AND A HALF. THIS WILL CAUSE SOME MINOR FLOODING OF SMALL CREEKS AND IN LOW LYING AREAS. OTHER STRONG STORMS WERE SCATTERED IN A BAND THAT EXTENDED FROM BEDFORD COUNTY SOUTHWARD THROUGH FRANKLIN AND HENRY COUNTIES INTO NORTH CAROLINA. THESE STORMS WILL ALSO PRODUCE VERY HEAVY DOWNPOURS. STRONG WINDS AND HAIL ARE STILL A POSSIBILITY WITH ANY OF THESE STORMS. JACKSON
Special weather statement, Jul 1, 10:28 PM EDT, 32 minutes before
VAZ009-013-014-015-016-020330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 1026 PM EDT THU JUL 1 1993 ...NEARLY STATIONARY THUNDERSTORM PRODUCING TORRENTIAL RAIN IN NORTHWEST ROANOKE COUNTY... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM FOR PARTS OF SOUTH WEST AND WEST CENTRAL VIRGINIA... AT 1020 PM RADAR SHOWED A STRONG THUNDERSTORM OVER NORTHWEST ROANOKE COUNTY JUST TO THE NORTH OF DIXIE CAVERNS IN THE BRADSHAW AREA. THIS STORM HAD BEEN NEARLY STATIONARY DURING THE PAST HOUR...AND HAS DUMPED ALMOST 2.5 INCHES OF RAIN IN THE LAST HOUR AND A HALF. THIS WILL CAUSE SOME MINOR FLOODING OF SMALL CREEKS AND IN LOW LYING AREAS. OTHER STRONG STORMS WERE SCATTERED IN A BAND THAT EXTENDED FROM BEDFORD COUNTY SOUTHWARD THROUGH FRANKLIN AND HENRY COUNTIES INTO NORTH CAROLINA. THESE STORMS WILL ALSO PRODUCE VERY HEAVY DOWNPOURS. STRONG WINDS AND HAIL ARE STILL A POSSIBILITY WITH ANY OF THESE STORMS. JACKSON
Special weather statement, Jul 1, 11:00 PM EDT, 0 minutes before
VAC770-020400- BULLETIN - SMALL STREAN AND URBAN FLOOD WARNING NATIONAL WEATHER SERVICE ROANOKE VIRGINIA 1100 PM EDT THU JUL 1 1993 THE NATIONAL WEATHER SERVICE IN ROANOKE VIRGINIA HAS ISSUED A SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT EDT FOR PEOPLE IN THE FOLLOWING LOCATION ... IN SOUTH CENTRAL VIRGINIA THE INDEPENDENT CITY OF ...ROANOKE A NEARLY STATIONARY THUNDERSTORM OVER THE CITY OF ROANOKE IS DUMPING TORRENTIAL RAINFALL. SOME STREETS AND OTHER LOW AREAS ARE BEGINNING TO FLOOD. THIS RAIN WILL TAPER OFF IN THE NEXT 15 MINUTES TO HALF HOUR. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. JACKSON
Nearby
Flash Flood Warnings in Virginia, 1993Every flash flood warning in 1993
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.