Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 307
NWS Storm Prediction Center Norman OK
755 PM EDT Fri Jun 26 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Indiana
Southern Lower Michigan
Extreme northwestern Ohio
Lake Erie
Lake Michigan
* Effective this Friday night and Saturday morning from 755 PM
until 500 AM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Severe-thunderstorm potential will increase and shift
east-southeastward across the watch area through the remainder of
the evening, as activity now over northern Illinois and southern
Lake Michigan becomes better organized. Wind is the main threat,
though isolated large hail is expected, and a tornado or two cannot
be ruled out.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 30 miles west of Benton
Harbor MI to 10 miles east southeast of Detroit MI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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 305...WW 306...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
28035.
...Edwards
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 307
NWS Storm Prediction Center Norman OK
755 PM EDT Fri Jun 26 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Indiana
Southern Lower Michigan
Extreme northwestern Ohio
Lake Erie
Lake Michigan
* Effective this Friday night and Saturday morning from 755 PM
until 500 AM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Severe-thunderstorm potential will increase and shift
east-southeastward across the watch area through the remainder of
the evening, as activity now over northern Illinois and southern
Lake Michigan becomes better organized. Wind is the main threat,
though isolated large hail is expected, and a tornado or two cannot
be ruled out.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 30 miles west of Benton
Harbor MI to 10 miles east southeast of Detroit MI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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 305...WW 306...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 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.
SAW7
WW 307 SEVERE TSTM IN MI OH LE LM 262355Z - 270900Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
30W BEH/BENTON HARBOR MI/ - 10ESE DTW/DETROIT MI/
..AVIATION COORDS.. 50NM N/S /38NW GIJ - 9ESE DXO/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 28035.
LAT...LON 43008702 43038317 41308317 41268702
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 307 Status Report Messages:
STATUS REPORT #5 ON WW 307
VALID 270700Z - 270840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NNW MIE
TO 35 SE FWA.
..GLEASON..06/27/20
ATTN...WFO...IWX...GRR...DTX...
&&
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC075-270840-
IN
. INDIANA COUNTIES INCLUDED ARE
JAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 307
VALID 270535Z - 270640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 W FWA TO
35 W FDY TO 35 E TOL TO 40 SE DTW.
..GLEASON..06/27/20
ATTN...WFO...IWX...GRR...DTX...
&&
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-009-069-075-169-179-270640-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS BLACKFORD HUNTINGTON
JAY WABASH WELLS
$$
OHC003-137-161-270640-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN PUTNAM VAN WERT
$$
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.
$$
STATUS REPORT #3 ON WW 307
VALID 270345Z - 270440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSE SBN
TO 40 NNE FWA TO 25 SSE JXN TO 15 WNW ARB TO 20 S FNT TO 30 E FNT.
..SPC..06/27/20
ATTN...WFO...IWX...GRR...DTX...
&&
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-003-009-033-049-069-075-085-113-131-149-151-169-179-183-
270440-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BLACKFORD
DE KALB FULTON HUNTINGTON
JAY KOSCIUSKO NOBLE
PULASKI STARKE STEUBEN
WABASH WELLS WHITLEY
$$
MIC059-091-093-099-115-125-147-161-163-270440-
MI
. MICHIGAN COUNTIES INCLUDED ARE
HILLSDALE LENAWEE LIVINGSTON
MACOMB MONROE OAKLAND
ST. CLAIR WASHTENAW WAYNE
$$
OHC003-039-051-069-125-137-161-171-270440-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN DEFIANCE FULTON
HENRY PAULDING PUTNAM
VAN WERT WILLIAMS
$$
LCZ422-423-460-LEZ444-270440-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ST. CLAIR RIVER
DETROIT RIVER
LAKE ST. CLAIR OPEN LAKE (U.S. PORTION)
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 307
VALID 270255Z - 270340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 SSW VPZ TO
15 ESE SBN TO 25 W JXN TO 5 SSE LAN TO 15 SW FNT TO 30 ENE FNT.
..BENTLEY..06/27/20
ATTN...WFO...IWX...GRR...DTX...
&&
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC003-033-039-049-085-087-099-113-131-149-151-183-270340-
IN
. INDIANA COUNTIES INCLUDED ARE
ALLEN DE KALB ELKHART
FULTON KOSCIUSKO LAGRANGE
MARSHALL NOBLE PULASKI
STARKE STEUBEN WHITLEY
$$
MIC023-025-059-065-075-091-093-099-115-125-147-161-163-270340-
MI
. MICHIGAN COUNTIES INCLUDED ARE
BRANCH CALHOUN HILLSDALE
INGHAM JACKSON LENAWEE
LIVINGSTON MACOMB MONROE
OAKLAND ST. CLAIR WASHTENAW
WAYNE
$$
OHC039-051-069-125-171-270340-
OH
. OHIO COUNTIES INCLUDED ARE
DEFIANCE FULTON HENRY
PAULDING WILLIAMS
$$
LCZ422-423-460-LEZ444-270340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ST. CLAIR RIVER
DETROIT RIVER
LAKE ST. CLAIR OPEN LAKE (U.S. PORTION)
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI
$$
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.
$$
STATUS REPORT #1 ON WW 307
VALID 270145Z - 270240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N VPZ TO
5 WNW BEH TO 30 SW GRR TO 40 ENE MKG.
..BENTLEY..06/27/20
ATTN...WFO...IWX...GRR...DTX...
&&
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC003-033-039-049-085-087-091-099-113-131-141-149-151-183-
270240-
IN
. INDIANA COUNTIES INCLUDED ARE
ALLEN DE KALB ELKHART
FULTON KOSCIUSKO LAGRANGE
LA PORTE MARSHALL NOBLE
PULASKI ST. JOSEPH STARKE
STEUBEN WHITLEY
$$
MIC005-015-021-023-025-027-037-045-059-065-067-075-077-081-091-
093-099-115-125-147-149-159-161-163-270240-
MI
. MICHIGAN COUNTIES INCLUDED ARE
ALLEGAN BARRY BERRIEN
BRANCH CALHOUN CASS
CLINTON EATON HILLSDALE
INGHAM IONIA JACKSON
KALAMAZOO KENT LENAWEE
LIVINGSTON MACOMB MONROE
OAKLAND ST. CLAIR ST. JOSEPH
VAN BUREN WASHTENAW WAYNE
$$
OHC039-051-069-125-171-270240-
OH
. OHIO COUNTIES INCLUDED ARE
DEFIANCE FULTON HENRY
PAULDING WILLIAMS
$$
LCZ422-423-460-LEZ444-LMZ043-046-080-844-270240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ST. CLAIR RIVER
DETROIT RIVER
LAKE ST. CLAIR OPEN LAKE (U.S. PORTION)
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI
NEW BUFFALO MI TO ST JOSEPH MI
MICHIGAN CITY IN TO NEW BUFFALO MI
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF LAKE.
ST JOSEPH TO SOUTH HAVEN MI
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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.
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