Alert archive / Ohio / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 13
The Storm Prediction Center issued this severe thunderstorm watch at Jan 9, 2008, 12:53 AM EST for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 9, 2008, 12:53 AM EST (05:53 UTC)
- Expired
- Jan 9, 2008, 4:00 AM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 62 counties
Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Ashland County, OH, Ashtabula County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Cuyahoga County, OH, Gallia County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jackson County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Lawrence County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Wayne County, OH, Crawford County, PA, Erie County, PA, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Hancock County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Marshall County, WV, Mason County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Charleston,WV radar (KRLX), 150 km from the middle of the area, began a volume at 05:55 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 9, 12:55 AM EST | Severe Thunderstorm Warning | CLE | Holmes, Lorain, Medina, Wayne | 65 min |
| Jan 9, 1:15 AM EST | Severe Thunderstorm Warning | CLE | Cuyahoga | 60 min |
| Jan 9, 1:39 AM EST | Severe Thunderstorm Warning | CLE | Geauga, Lake, Portage, Stark, Summit | 81 min |
| Jan 9, 2:19 AM EST | Severe Thunderstorm Warning | CLE | Ashtabula, Mahoning, Trumbull | 86 min |
| Jan 9, 2:43 AM EST | Severe Thunderstorm Warning | CLE | Crawford, Erie | 92 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.9 hours before the alert went out and 154 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
- 63 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 428 m²/s²
- 0-3 km storm-relative helicity
- 454 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
742
WWUS20 KWNS 090552
SEL3
SPC WW 090552
KYZ000-OHZ000-PAZ000-WVZ000-LEZ000-090900-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 13
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM EST WED JAN 9 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST KENTUCKY
CENTRAL AND EASTERN OHIO
NORTHWEST PENNSYLVANIA
WESTERN WEST VIRGINIA
LAKE ERIE
EFFECTIVE THIS WEDNESDAY MORNING FROM 1255 AM UNTIL 400 AM EST.
HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH OF
HUNTINGTON WEST VIRGINIA TO 45 MILES NORTH OF YOUNGSTOWN OHIO.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 11...WW 12...
DISCUSSION...LOW-TOPPED LINE SEGMENTS EMBEDDED IN STRONG WIND FIELD
ASSOCIATED WITH DEEPENING SFC LOW MAY PRODUCE SWATHS OF DAMAGING
WIND AS FAST-MOVING BAND OF ASCENT ENCOUNTERS SLIGHTLY WARMER AIR IN
ERN OH.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 300. MEAN STORM
MOTION VECTOR 22050.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 8, 9:01 PM EST | Mesoscale Discussion | SPC | Anderson, Boone, Bracken, Breckinridge, Bullitt, Campbell and 21 more | 89 min |
| Jan 8, 10:07 PM EST | Tornado Watch | SPC | Boone, Bourbon, Bracken, Campbell, Carroll, Franklin and 15 more | 4 hr |
| Jan 9, 12:26 AM EST | Mesoscale Discussion | SPC | Boyd, Carter, Fleming, Greenup, Lewis, Rowan | 94 min |
| Jan 8, 11:30 PM EST | Mesoscale Discussion | SPC | Ashland, Crawford, Erie, Holmes, Huron, Medina and 8 more | 60 min |
| Jan 9, 3:50 AM EST | Mesoscale Discussion | SPC | Armstrong, Bedford, Blair, Bradford, Cambria, Cameron and 20 more | 115 min |
Nearby
Severe Thunderstorm Watches in Ohio, 2008Severe Thunderstorm Watches in West Virginia, 2008Severe Thunderstorm Watches in Kentucky, 2008Every severe thunderstorm watch in 2008
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; radar from the NEXRAD Level II archive.