Alert archive / Ohio / Tornado Watches in 2005
Tornado Watch 856
The Storm Prediction Center issued this tornado watch at Nov 9, 2005, 4:35 PM EST for 16 counties in Ohio; 16 counties in Pennsylvania; 6 counties in West Virginia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 9, 2005, 4:35 PM EST (21:35 UTC)
- Expired
- Nov 9, 2005, 8:58 PM EST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 38 counties
Belmont County, OH, Carroll County, OH, Columbiana County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Mahoning County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Stark County, OH, Trumbull County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cameron County, PA, Clarion County, PA, Elk County, PA, Fayette County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Wetzel County, WV
The radar
The Pittsburgh radar (KPBZ), 27 km from the middle of the area, began a volume at 21:37 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 9, 5:47 PM EST | Severe Thunderstorm Warning | PBZ | Forest, Venango | 58 min |
| Nov 9, 5:57 PM EST | Severe Thunderstorm Warning | PBZ | Butler, Clarion | 63 min |
| Nov 9, 6:26 PM EST | Tornado Warning | PBZ | Clarion, Jefferson | 49 min |
| Nov 9, 6:31 PM EST | Severe Thunderstorm Warning | CTP | Elk | 59 min |
| Nov 9, 6:43 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong | 62 min |
| Nov 9, 6:47 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny | 58 min |
| Nov 9, 7:11 PM EST | Severe Thunderstorm Warning | PBZ | Westmoreland | 64 min |
| Nov 9, 7:16 PM EST | Severe Thunderstorm Warning | PBZ | Greene, Washington | 59 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
Pittsburgh, PA (KPIT), launched 12:00Z, 9.6 hours before the alert went out and 44 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
- 9 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 322 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 092139
SEL6
SPC WW 092139
OHZ000-PAZ000-WVZ000-100300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 856
NWS STORM PREDICTION CENTER NORMAN OK
435 PM EST WED NOV 9 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EAST CENTRAL OHIO
WESTERN PENNSYLVANIA
EXTREME NORTHERN WEST VIRGINIA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 435 PM UNTIL
1000 PM EST.
TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 15 MILES EAST NORTHEAST OF FRANKLIN
PENNSYLVANIA TO 45 MILES SOUTH SOUTHWEST OF WHEELING WEST
VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...CONTINUE...WW 855...
DISCUSSION...STRONG UPPER TROUGH AND ASSOCIATED 90+ KT WLY MID LEVEL
JET WILL OVERSPREAD OH/WRN PA THIS EVENING. SURFACE COLD FRONT
ACCOMPANYING THIS SYSTEM WILL LIKEWISE CONTINUE ESEWD INTO THIS
REGION...AND AID IN DEVELOPING A BROKEN LINE OF THUNDERSTORMS DURING
THE NEXT FEW HOURS. DAMAGING WINDS ARE EXPECTED TO BE PRIMARY
SEVERE THREAT AS SUPERCELLS/SMALL BOW ECHOES EVOLVE ALONG AND AHEAD
OF THE FRONT. SIGNIFICANT LOW LEVEL SHEAR AND MAINTENANCE OF LOWER
60F SURFACE DEW POINTS INTO ERN OH/WRN PA SUPPORT ADDITIONAL THREAT
OF ISOLATED TORNADOES THROUGH THE EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 28040.
...EVANS
412,0780 393,0793 393,0822 412,0810SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 7:35 PM EST | Severe Thunderstorm Watch | SPC | Defiance, Paulding, Williams | 8 hr |
| Nov 8, 8:44 PM EST | Mesoscale Discussion | SPC | Allen, Ashland, Athens, Auglaize, Belmont, Carroll and 59 more | 91 min |
| Nov 8, 10:15 PM EST | Severe Thunderstorm Watch | SPC | Allen, Ashland, Auglaize, Champaign, Clark, Crawford and 30 more | 7 hr |
| Nov 8, 10:25 PM EST | Mesoscale Discussion | SPC | Allen, Defiance, Fulton, Paulding, Putnam, Van Wert and 1 more | 2 hr |
| Nov 9, 12:29 AM EST | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Auglaize, Carroll, Champaign and 52 more | 91 min |
| Nov 9, 10:49 AM EST | Mesoscale Discussion | SPC | Ashland, Ashtabula, Carroll, Columbiana, Cuyahoga, Geauga and 10 more | 116 min |
| Nov 9, 11:35 AM EST | Severe Thunderstorm Watch | SPC | Ashtabula, Mahoning, Portage, Trumbull | 7 hr |
| Nov 9, 3:31 PM EST | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Carroll, Clermont and 39 more | 119 min |
| Nov 9, 6:04 PM EST | Mesoscale Discussion | SPC | McKean, Potter, Tioga, Warren | 56 min |
| Nov 9, 6:45 PM EST | Severe Thunderstorm Watch | SPC | Bradford, Cameron, Centre, Clearfield, Clinton, Lycoming and 8 more | 3 hr |
Nearby
Tornado Watches in Ohio, 2005Tornado Watches in Pennsylvania, 2005Tornado Watches in West Virginia, 2005Every tornado watch in 2005
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.