Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 155
NWS Storm Prediction Center Norman OK
1245 AM CDT Wed Apr 29 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Arkansas
Northern Louisiana
Western Mississippi
* Effective this Wednesday morning from 1245 AM until 600 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A nearly continuous squall line will continue to steadily
move southeastward overnight with locally damaging winds remaining a
possibility at least through the early/middle part of the overnight.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 25 miles east southeast
of Greenwood MS to 10 miles north of Natchitoches LA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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 153...WW 154...
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29040.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 155 SEVERE TSTM AR LA MS 290545Z - 291100Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
25ESE GWO/GREENWOOD MS/ - 10N IER/NATCHITOCHES LA/
..AVIATION COORDS.. 45NM N/S /31E SQS - 48NW AEX/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29040.
LAT...LON 32648968 31169310 32619310 34088968
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 155 Status Report Messages:
STATUS REPORT #2 ON WW 155
VALID 290750Z - 290840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNW IER
TO 5 E MLU TO 25 SSW GLH TO 30 S UOX.
..BROYLES..04/29/20
ATTN...WFO...JAN...SHV...
&&
STATUS REPORT FOR WS 155
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC021-025-029-035-041-043-049-059-065-069-083-107-123-127-
290840-
LA
. LOUISIANA PARISHES INCLUDED ARE
CALDWELL CATAHOULA CONCORDIA
EAST CARROLL FRANKLIN GRANT
JACKSON LA SALLE MADISON
NATCHITOCHES RICHLAND TENSAS
WEST CARROLL WINN
$$
MSC001-015-021-043-051-053-055-063-083-125-149-163-290840-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS CARROLL CLAIBORNE
GRENADA HOLMES HUMPHREYS
ISSAQUENA JEFFERSON LEFLORE
SHARKEY WARREN YAZOO
$$
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.
$$
STATUS REPORT #1 ON WW 155
VALID 290630Z - 290740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/29/20
ATTN...WFO...JAN...SHV...
&&
STATUS REPORT FOR WS 155
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-290740-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT
$$
LAC021-025-029-035-041-043-049-059-061-065-067-069-073-083-107-
111-123-127-290740-
LA
. LOUISIANA PARISHES INCLUDED ARE
CALDWELL CATAHOULA CONCORDIA
EAST CARROLL FRANKLIN GRANT
JACKSON LA SALLE LINCOLN
MADISON MOREHOUSE NATCHITOCHES
OUACHITA RICHLAND TENSAS
UNION WEST CARROLL WINN
$$
MSC001-011-015-021-043-051-053-055-063-083-125-133-149-151-163-
290740-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS BOLIVAR CARROLL
CLAIBORNE GRENADA HOLMES
HUMPHREYS ISSAQUENA JEFFERSON
LEFLORE SHARKEY SUNFLOWER
WARREN WASHINGTON YAZOO
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
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 (60%)
|
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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