Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 391
NWS Storm Prediction Center Norman OK
125 PM EDT Tue Jul 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
North Central Indiana
* Effective this Tuesday afternoon from 125 PM until 500 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A bowing cluster of thunderstorms will track
east-northeastward across the watch area this afternoon. Locally
damaging winds are possible along the leading edge of the storms.
The severe thunderstorm watch area is approximately along and 30
statute miles north and south of a line from 35 miles west southwest
of Lafayette IN to 80 miles east of Lafayette IN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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.
&&
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 500. Mean storm motion vector
26035.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 391 SEVERE TSTM IN 211725Z - 212100Z
AXIS..30 STATUTE MILES NORTH AND SOUTH OF LINE..
35WSW LAF/LAFAYETTE IN/ - 80E LAF/LAFAYETTE IN/
..AVIATION COORDS.. 25NM N/S /30SW BVT - 36SSW FWA/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26035.
LAT...LON 40668754 40848541 39988541 39798754
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 391 Status Report Messages:
STATUS REPORT #2 ON WW 391
VALID 211920Z - 212040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NNW IND
TO 30 W MIE TO 30 NW MIE TO 35 WNW FWA.
..LEITMAN..07/21/20
ATTN...WFO...IND...IWX...
&&
STATUS REPORT FOR WS 391
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC023-053-057-069-095-159-169-212040-
IN
. INDIANA COUNTIES INCLUDED ARE
CLINTON GRANT HAMILTON
HUNTINGTON MADISON TIPTON
WABASH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 391
VALID 211815Z - 211940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW HUF
TO 30 S LAF TO 15 SSE LAF TO 25 NNE LAF.
..LEITMAN..07/21/20
ATTN...WFO...IND...IWX...
&&
STATUS REPORT FOR WS 391
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC011-015-017-023-053-057-067-069-095-103-107-121-157-159-165-
169-181-211940-
IN
. INDIANA COUNTIES INCLUDED ARE
BOONE CARROLL CASS
CLINTON GRANT HAMILTON
HOWARD HUNTINGTON MADISON
MIAMI MONTGOMERY PARKE
TIPPECANOE TIPTON VERMILLION
WABASH WHITE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
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.
weather.gov 
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