Tornado Watch 475

Issued

Aug 30, 2021, 5:48 AM CDT (10:48 UTC)

Expired

Aug 30, 2021, 4:00 PM CDT

In force

10 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

50 kt

The Mobile radar (KMOB), 63 km from the middle of the area, began a volume at 10:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

5%

One or more gusts of 65 knots or more

5%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

20%

• Mesoscale Discussion 1645 Tornado watch 474Aug 30, 2:44 AM CDT
• Mesoscale Discussion 1652 Tornado watch 475Aug 30, 3:13 PM CDT

418 
WWUS20 KWNS 301045
SEL5  
SPC WW 301045
ALZ000-FLZ000-MSZ000-CWZ000-302100-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 475
NWS Storm Prediction Center Norman OK
545 AM CDT Mon Aug 30 2021

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southwest Alabama
  The western Florida Panhandle
  Extreme southeast Mississippi
  Coastal Waters

* Effective this Monday morning and afternoon from 545 AM until
  400 PM CDT.

* Primary threats include...
  A couple tornadoes possible

SUMMARY...Bands of convection with embedded supercells will persist
through the day and spread slowly eastward into Alabama and the
western Florida Panhandle, to the east of weakening Tropical Storm
Ida in Mississippi.  The stronger/more persistent supercells may
produce a couple of tornadoes through mid afternoon.

The tornado watch area is approximately along and 70 statute miles
north and south of a line from 40 miles north of Gulfport MS to 20
miles north northeast of Crestview FL. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU5).

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.

&&

OTHER WATCH INFORMATION...This tornado watch replaces tornado
watch number 474. Watch number 474 will not be in effect after
545 AM CDT. 

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 50 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 19040.

...Thompson

Tornado Watches in Alabama, 2021Tornado Watches in Mississippi, 2021Tornado Watches in Florida, 2021Every tornado watch in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.