Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 183
NWS Storm Prediction Center Norman OK
615 PM CDT Thu May 14 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Iowa
Northern Illinois
* Effective this Thursday night and Friday morning from 615 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms currently over central Iowa will move into
the watch area, while new storms form across the area this evening.
The strongest cells will pose a risk of hail and damaging winds for
the next several hours.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 70 miles west northwest
of Burlington IA to 85 miles east of Moline IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).
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 182...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Hart
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 183
NWS Storm Prediction Center Norman OK
615 PM CDT Thu May 14 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Iowa
Northern Illinois
* Effective this Thursday night and Friday morning from 615 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms currently over central Iowa will move into
the watch area, while new storms form across the area this evening.
The strongest cells will pose a risk of hail and damaging winds for
the next several hours.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 70 miles west northwest
of Burlington IA to 85 miles east of Moline IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).
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 182...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 183 SEVERE TSTM IA IL 142315Z - 150600Z
AXIS..35 STATUTE MILES NORTH AND SOUTH OF LINE..
70WNW BRL/BURLINGTON IA/ - 85E MLI/MOLINE IL/
..AVIATION COORDS.. 30NM N/S /41WSW IOW - 25WSW JOT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26030.
LAT...LON 41679237 41948886 40938886 40659237
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 183 Status Report Messages:
STATUS REPORT #5 ON WW 183
VALID 150440Z - 150540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S OTM TO
35 S MLI TO 20 SW RFD.
..BROYLES..05/15/20
ATTN...WFO...DVN...ILX...LOT...
&&
STATUS REPORT FOR WS 183
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-031-037-043-057-063-071-089-091-093-095-099-103-105-123-
125-143-155-175-179-187-197-203-150540-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU COOK DE KALB
DUPAGE FULTON GRUNDY
HENDERSON KANE KANKAKEE
KENDALL KNOX LA SALLE
LEE LIVINGSTON MARSHALL
MASON PEORIA PUTNAM
STARK TAZEWELL WARREN
WILL WOODFORD
$$
IAC111-150540-
IA
. IOWA COUNTIES INCLUDED ARE
LEE
$$
LMZ740-741-742-150540-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LMZ740
LMZ741
LMZ742
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 183
VALID 150400Z - 150540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 S OTM TO
30 SSW MLI TO 40 WSW RFD.
..BROYLES..05/15/20
ATTN...WFO...DVN...ILX...LOT...
&&
STATUS REPORT FOR WS 183
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-057-063-071-073-091-093-095-099-103-105-123-125-143-155-
175-179-187-195-197-203-150540-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU FULTON GRUNDY
HENDERSON HENRY KANKAKEE
KENDALL KNOX LA SALLE
LEE LIVINGSTON MARSHALL
MASON PEORIA PUTNAM
STARK TAZEWELL WARREN
WHITESIDE WILL WOODFORD
$$
IAC057-111-177-150540-
IA
. IOWA COUNTIES INCLUDED ARE
DES MOINES LEE VAN BUREN
$$
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.
$$
STATUS REPORT #3 ON WW 183
VALID 150245Z - 150340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW OTM
TO 30 NNW MLI.
..BROYLES..05/15/20
ATTN...WFO...DVN...ILX...LOT...
&&
STATUS REPORT FOR WS 183
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-063-071-073-091-093-095-099-103-105-123-131-143-155-161-
175-187-195-197-203-150340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU GRUNDY HENDERSON
HENRY KANKAKEE KENDALL
KNOX LA SALLE LEE
LIVINGSTON MARSHALL MERCER
PEORIA PUTNAM ROCK ISLAND
STARK WARREN WHITESIDE
WILL WOODFORD
$$
IAC045-057-087-101-107-111-115-139-163-177-183-150340-
IA
. IOWA COUNTIES INCLUDED ARE
CLINTON DES MOINES HENRY
JEFFERSON KEOKUK LEE
LOUISA MUSCATINE SCOTT
VAN BUREN WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 183
VALID 150155Z - 150240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..05/15/20
ATTN...WFO...DVN...ILX...LOT...
&&
STATUS REPORT FOR WS 183
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-063-071-073-091-093-095-099-103-105-123-131-143-155-161-
175-187-195-197-203-150240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU GRUNDY HENDERSON
HENRY KANKAKEE KENDALL
KNOX LA SALLE LEE
LIVINGSTON MARSHALL MERCER
PEORIA PUTNAM ROCK ISLAND
STARK WARREN WHITESIDE
WILL WOODFORD
$$
IAC031-045-057-087-095-101-103-107-111-115-139-163-177-183-
150240-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JEFFERSON
JOHNSON KEOKUK LEE
LOUISA MUSCATINE SCOTT
VAN BUREN WASHINGTON
$$
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.
$$
STATUS REPORT #1 ON WW 183
VALID 150040Z - 150140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MOORE..05/15/20
ATTN...WFO...DVN...ILX...LOT...
&&
STATUS REPORT FOR WS 183
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-071-073-095-099-103-123-131-143-155-161-175-187-195-203-
150140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU HENDERSON HENRY
KNOX LA SALLE LEE
MARSHALL MERCER PEORIA
PUTNAM ROCK ISLAND STARK
WARREN WHITESIDE WOODFORD
$$
IAC031-045-057-087-095-101-103-107-111-115-139-163-177-183-
150140-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JEFFERSON
JOHNSON KEOKUK LEE
LOUISA MUSCATINE SCOTT
VAN BUREN WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
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.