Alert archive / Virginia / Flash Flood Warnings in 1993
Flash Flood Warning 6, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Mar 4, 1993, 8:01 AM EST for City of Roanoke, Virginia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Mar 4, 1993, 8:01 AM EST (13:01 UTC)
- Expired
- Mar 4, 1993, 11:00 AM EST
- In force
- 3 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County City of Roanoke, VA
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 1.0 hours before the alert went out and 132 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 277 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 4:04 AM EST | Flash Flood Warning | RNK | Franklin, Roanoke | 116 min |
| Mar 4, 5:40 AM EST | Flash Flood Warning | RNK | Franklin, Roanoke | 2 hr |
| Mar 4, 5:40 AM EST | Flash Flood Warning | RNK | Botetourt | 2 hr |
| Mar 4, 6:10 AM EST | Flash Flood Warning | RNK | Montgomery | 110 min |
| Mar 4, 6:35 AM EST | Flash Flood Warning | RNK | Henry, City of Martinsville | 115 min |
| Mar 4, 8:01 AM EST | Flash Flood Warning | RNK | Montgomery | 3 hr |
| Mar 4, 8:01 AM EST | Flash Flood Warning | RNK | City of Salem | 3 hr |
| Mar 4, 8:01 AM EST | Flash Flood Warning | RNK | City of Martinsville | 3 hr |
| Mar 4, 8:01 AM EST | Flash Flood Warning | RNK | Botetourt | 3 hr |
| Mar 4, 8:09 AM EST | Flash Flood Warning | RNK | Campbell | 3 hr |
| Mar 4, 11:22 AM EST | Flash Flood Warning | RNK | Franklin, Henry | 3 hr |
| Mar 4, 11:22 AM EST | Flash Flood Warning | RNK | Botetourt, Montgomery, Roanoke | 3 hr |
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.