Alert archive / Virginia / Tornado Watches in 2009
Tornado Watch 594
The Storm Prediction Center issued this tornado watch at Jul 17, 2009, 2:00 PM EDT for 9 counties in North Carolina; 31 counties in Virginia. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2009, 2:00 PM EDT (18:00 UTC)
- Expired
- Jul 17, 2009, 6:32 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 40 counties
Bertie County, NC, Camden County, NC, Chowan County, NC, Currituck County, NC, Gates County, NC, Hertford County, NC, Northampton County, NC, Pasquotank County, NC, Perquimans County, NC, Accomack County, VA, Brunswick County, VA, Charles City County, VA, City of Chesapeake, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Hopewell, VA, City of Newport News, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Dinwiddie County, VA, Gloucester County, VA, Greensville County, VA, Isle of Wight County, VA, James City County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA, New Kent County, VA, Northampton County, VA, Northumberland County, VA, Prince George County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA
The radar
The Norfolk radar (KAKQ), 59 km from the middle of the area, began a volume at 18:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 2:08 PM EDT | Severe Thunderstorm Warning | AKQ | Dinwiddie, Greensville, Southampton, Sussex | 52 min |
| Jul 17, 2:35 PM EDT | Severe Thunderstorm Warning | AKQ | Northampton | 40 min |
| Jul 17, 3:03 PM EDT | Severe Thunderstorm Warning | AKQ | Isle of Wight, Southampton, Sussex, City of Franklin | 42 min |
| Jul 17, 3:36 PM EDT | Severe Thunderstorm Warning | AKQ | Hertford, Northampton | 39 min |
| Jul 17, 3:39 PM EDT | Severe Thunderstorm Warning | AKQ | Isle of Wight, Southampton, City of Chesapeake, City of Portsmouth, City of Suffolk | 51 min |
| Jul 17, 4:19 PM EDT | Severe Thunderstorm Warning | AKQ | City of Chesapeake, City of Norfolk, City of Virginia Beach | 56 min |
| Jul 17, 5:33 PM EDT | Severe Thunderstorm Warning | AKQ | Camden, Currituck, Pasquotank, Perquimans | 57 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 9:52 AM EDT | Mesoscale Discussion | SPC | Alamance, Caswell, Chatham, Davidson, Durham, Edgecombe and 18 more | 83 min |
| Jul 17, 10:29 AM EDT | Severe Thunderstorm Watch | SPC | Alamance, Caswell, Chatham, Davidson, Durham, Forsyth and 11 more | 7 hr |
| Jul 17, 12:59 PM EDT | Mesoscale Discussion | SPC | Alamance, Caswell, Chatham, Durham, Granville, Guilford and 5 more | 91 min |
| Jul 17, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Carteret, Craven, Cumberland, Dare, Duplin and 21 more | 7 hr |
| Jul 17, 3:41 PM EDT | Mesoscale Discussion | SPC | Gates, Hertford, Northampton | 94 min |
| Jul 17, 4:28 PM EDT | Mesoscale Discussion | SPC | Anson, Mecklenburg, Richmond, Robeson, Scotland, Union | 92 min |
| Jul 17, 6:45 PM EDT | Mesoscale Discussion | SPC | Beaufort, Cumberland, Duplin, Greene, Hoke, Johnston and 7 more | 60 min |
Nearby
Tornado Watches in Virginia, 2009Tornado Watches in North Carolina, 2009Every tornado watch in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.