Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 309
NWS Storm Prediction Center Norman OK
1115 PM EDT Fri Jun 26 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Ohio
Extreme northwestern Pennsylvania
Lake Erie
* Effective this Friday night and Saturday morning from 1115 PM
until 600 AM EDT.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
SUMMARY...A complex of thunderstorms, that has produced several
measured-severe gusts across parts of lower Michigan, northern
Indiana and northeastern Illinois, may maintain a sporadic threat
for severe gusts across the watch area before weakening late
overnight. Isolated large hail and damaging gusts also are possible
from precursory storms now crossing parts of Lake Erie.
The severe thunderstorm watch area is approximately along and 45
statute miles either side of a line from 60 miles southwest of
Findlay OH to 10 miles east southeast of Erie PA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 307...WW 308...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 550. Mean storm motion vector
28035.
...Edwards
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 309
NWS Storm Prediction Center Norman OK
1115 PM EDT Fri Jun 26 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Ohio
Extreme northwestern Pennsylvania
Lake Erie
* Effective this Friday night and Saturday morning from 1115 PM
until 600 AM EDT.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
SUMMARY...A complex of thunderstorms, that has produced several
measured-severe gusts across parts of lower Michigan, northern
Indiana and northeastern Illinois, may maintain a sporadic threat
for severe gusts across the watch area before weakening late
overnight. Isolated large hail and damaging gusts also are possible
from precursory storms now crossing parts of Lake Erie.
The severe thunderstorm watch area is approximately along and 45
statute miles either side of a line from 60 miles southwest of
Findlay OH to 10 miles east southeast of Erie PA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 307...WW 308...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 550. Mean storm motion vector
28035.
...Edwards
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 309 SEVERE TSTM OH PA LE 270315Z - 271000Z
AXIS..45 STATUTE MILES EITHER SIDE OF LINE..
60SW FDY/FINDLAY OH/ - 10ESE ERI/ERIE PA/
..AVIATION COORDS.. 40NM EITHER SIDE /21WNW ROD - 13E ERI/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 28035.
LAT...LON 41028475 42648028 41417972 39798420
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 309 Status Report Messages:
STATUS REPORT #3 ON WW 309
VALID 270700Z - 270840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NE CMH TO
20 SE FDY TO 30 ENE FDY TO 25 WSW CLE TO 10 NNE CLE TO 25 NE CLE
TO 70 NNE CLE.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1020
..GLEASON..06/27/20
ATTN...WFO...CLE...ILN...
&&
STATUS REPORT FOR WS 309
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC005-007-033-035-055-075-077-083-085-093-099-101-103-117-133-
139-147-151-153-155-169-175-270840-
OH
. OHIO COUNTIES INCLUDED ARE
ASHLAND ASHTABULA CRAWFORD
CUYAHOGA GEAUGA HOLMES
HURON KNOX LAKE
LORAIN MAHONING MARION
MEDINA MORROW PORTAGE
RICHLAND SENECA STARK
SUMMIT TRUMBULL WAYNE
WYANDOT
$$
PAC039-049-270840-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
CRAWFORD ERIE
$$
LEZ146-147-148-149-167-168-169-270840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
AVON POINT TO WILLOWICK OH
WILLOWICK TO GENEVA-ON-THE LAKE OH
GENEVA-ON-THE-LAKE TO CONNEAUT OH
CONNEAUT OH TO RIPLEY NY
WILLOWICK TO GENEVA-ON-THE-LAKE OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
GENEVA-ON-THE-LAKE TO CONNEAUT OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
CONNEAUT OH TO RIPLEY NY BEYOND 5 NM OFF SHORELINE TO US-CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 309
VALID 270545Z - 270640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 E FWA TO
35 W FDY TO 35 E TOL TO 40 SE DTW.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1018
..GLEASON..06/27/20
ATTN...WFO...CLE...ILN...
&&
STATUS REPORT FOR WS 309
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC005-007-011-033-035-041-043-055-063-065-075-077-083-085-091-
093-099-101-103-107-117-123-133-139-143-147-149-151-153-155-159-
169-173-175-270640-
OH
. OHIO COUNTIES INCLUDED ARE
ASHLAND ASHTABULA AUGLAIZE
CRAWFORD CUYAHOGA DELAWARE
ERIE GEAUGA HANCOCK
HARDIN HOLMES HURON
KNOX LAKE LOGAN
LORAIN MAHONING MARION
MEDINA MERCER MORROW
OTTAWA PORTAGE RICHLAND
SANDUSKY SENECA SHELBY
STARK SUMMIT TRUMBULL
UNION WAYNE WOOD
WYANDOT
$$
PAC039-049-270640-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
CRAWFORD ERIE
$$
LEZ143-144-145-146-147-148-149-163-164-165-166-167-168-169-
270640-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
VERMILION TO AVON POINT OH
AVON POINT TO WILLOWICK OH
WILLOWICK TO GENEVA-ON-THE LAKE OH
GENEVA-ON-THE-LAKE TO CONNEAUT OH
CONNEAUT OH TO RIPLEY NY
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
THE ISLANDS TO VERMILION OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
VERMILION TO AVON POINT OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
AVON POINT TO WILLOWICK OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
WILLOWICK TO GENEVA-ON-THE-LAKE OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
GENEVA-ON-THE-LAKE TO CONNEAUT OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
CONNEAUT OH TO RIPLEY NY BEYOND 5 NM OFF SHORELINE TO US-CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 309
VALID 270440Z - 270540Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..06/27/20
ATTN...WFO...CLE...ILN...
&&
STATUS REPORT FOR WS 309
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC005-007-011-033-035-041-043-055-063-065-075-077-083-085-091-
093-095-099-101-103-107-117-123-133-139-143-147-149-151-153-155-
159-169-173-175-270540-
OH
. OHIO COUNTIES INCLUDED ARE
ASHLAND ASHTABULA AUGLAIZE
CRAWFORD CUYAHOGA DELAWARE
ERIE GEAUGA HANCOCK
HARDIN HOLMES HURON
KNOX LAKE LOGAN
LORAIN LUCAS MAHONING
MARION MEDINA MERCER
MORROW OTTAWA PORTAGE
RICHLAND SANDUSKY SENECA
SHELBY STARK SUMMIT
TRUMBULL UNION WAYNE
WOOD WYANDOT
$$
PAC039-049-270540-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
CRAWFORD ERIE
$$
LEZ142-143-144-145-146-147-148-149-163-164-165-166-167-168-169-
270540-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MAUMEE BAY TO RENO BEACH OH
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
VERMILION TO AVON POINT OH
AVON POINT TO WILLOWICK OH
WILLOWICK TO GENEVA-ON-THE LAKE OH
GENEVA-ON-THE-LAKE TO CONNEAUT OH
CONNEAUT OH TO RIPLEY NY
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
THE ISLANDS TO VERMILION OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
VERMILION TO AVON POINT OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
AVON POINT TO WILLOWICK OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
WILLOWICK TO GENEVA-ON-THE-LAKE OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
GENEVA-ON-THE-LAKE TO CONNEAUT OH BEYOND 5 NM OFF SHORELINE TO
US-CANADIAN BORDER
CONNEAUT OH TO RIPLEY NY BEYOND 5 NM OFF SHORELINE TO US-CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (10%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (50%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.