Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 536
NWS Storm Prediction Center Norman OK
610 PM CDT Sun Sep 18 2022
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Central and southern Iowa
Extreme northwest Illinois
Far northern Missouri
* Effective this Sunday night from 610 PM until Midnight CDT.
* Primary threats include...
A few tornadoes possible
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
SUMMARY...Thunderstorm development is expected this evening from
central/southern Iowa into southeast Iowa, and storms will move
east-southeastward into tonight. The environment favors supercells
capable of producing very large hail to 3 inches in diameter,
outflow gusts to 75 mph, and a few tornadoes. Later tonight,
upscale growth into a cluster or two may occur, with a continued
damaging wind and large hail threat.
The tornado watch area is approximately along and 55 statute miles
north and south of a line from 50 miles west southwest of Des Moines
IA to 25 miles east northeast of Burlington IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 29030.
...Thompson
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 536
NWS Storm Prediction Center Norman OK
610 PM CDT Sun Sep 18 2022
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Central and southern Iowa
Extreme northwest Illinois
Far northern Missouri
* Effective this Sunday night from 610 PM until Midnight CDT.
* Primary threats include...
A few tornadoes possible
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
SUMMARY...Thunderstorm development is expected this evening from
central/southern Iowa into southeast Iowa, and storms will move
east-southeastward into tonight. The environment favors supercells
capable of producing very large hail to 3 inches in diameter,
outflow gusts to 75 mph, and a few tornadoes. Later tonight,
upscale growth into a cluster or two may occur, with a continued
damaging wind and large hail threat.
The tornado watch area is approximately along and 55 statute miles
north and south of a line from 50 miles west southwest of Des Moines
IA to 25 miles east northeast of Burlington IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 29030.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 536 TORNADO IA IL MO 182310Z - 190500Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
50WSW DSM/DES MOINES IA/ - 25ENE BRL/BURLINGTON IA/
..AVIATION COORDS.. 50NM N/S /43WSW DSM - 52WSW BDF/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29030.
LAT...LON 42059456 41719069 40129069 40459456
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 536 Status Report Messages:
STATUS REPORT #2 ON WW 536
VALID 190310Z - 190440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SW LWD TO
20 S OXV TO 30 SW DBQ.
..JEWELL..09/19/22
ATTN...WFO...DMX...DVN...LSX...EAX...
&&
STATUS REPORT FOR WT 536
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-067-071-109-131-161-187-190440-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS HANCOCK HENDERSON
MCDONOUGH MERCER ROCK ISLAND
WARREN
$$
IAC007-031-051-053-057-087-095-101-103-107-111-113-115-117-123-
135-139-163-177-179-183-185-190440-
IA
. IOWA COUNTIES INCLUDED ARE
APPANOOSE CEDAR DAVIS
DECATUR DES MOINES HENRY
IOWA JEFFERSON JOHNSON
KEOKUK LEE LINN
LOUISA LUCAS MAHASKA
MONROE MUSCATINE SCOTT
VAN BUREN WAPELLO WASHINGTON
WAYNE
$$
MOC001-045-081-103-111-127-129-171-197-199-211-190440-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR CLARK HARRISON
KNOX LEWIS MARION
MERCER PUTNAM SCHUYLER
SCOTLAND SULLIVAN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 536
VALID 190220Z - 190340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE SDA
TO 25 SSW DSM TO 15 SSE DSM TO 40 N OTM TO 40 N CID.
..JEWELL..09/19/22
ATTN...WFO...DMX...DVN...LSX...EAX...
&&
STATUS REPORT FOR WT 536
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-067-071-109-131-161-187-190340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS HANCOCK HENDERSON
MCDONOUGH MERCER ROCK ISLAND
WARREN
$$
IAC003-007-011-031-039-051-053-057-087-095-101-103-107-111-113-
115-117-123-125-135-139-157-159-163-173-175-177-179-181-183-185-
190340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAMS APPANOOSE BENTON
CEDAR CLARKE DAVIS
DECATUR DES MOINES HENRY
IOWA JEFFERSON JOHNSON
KEOKUK LEE LINN
LOUISA LUCAS MAHASKA
MARION MONROE MUSCATINE
POWESHIEK RINGGOLD SCOTT
TAYLOR UNION VAN BUREN
WAPELLO WARREN WASHINGTON
WAYNE
$$
MOC001-045-081-103-111-129-171-197-199-211-227-190340-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR CLARK HARRISON
KNOX LEWIS MERCER
PUTNAM SCHUYLER SCOTLAND
SULLIVAN WORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (50%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
Probability of 1 or more hailstones > 2 inches
|
High (70%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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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