Tornado Watch 490

Issued

Sep 15, 2020, 5:48 PM CDT (22:48 UTC)

Expired

Sep 16, 2020, 6:00 AM CDT

In force

12 hr

Issued by

the Storm Prediction Center

Strongest gust expected

60 kt

Counties Baldwin County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Franklin County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The Eglin Afb radar (KEVX), 57 km from the middle of the area, began a volume at 22:49 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

10%

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 1691 Tornado watch 489Sep 15, 2:16 PM CDT
• Mesoscale Discussion 1692 Severe potential...tornado watch likelySep 15, 5:23 PM CDT
• Mesoscale Discussion 1693 Tornado watch 490Sep 15, 7:45 PM CDT
• Mesoscale Discussion 1694 Tornado watch 490Sep 15, 11:09 PM CDT
• Mesoscale Discussion 1695 Tornado watch 490Sep 16, 4:14 AM CDT

718 
WWUS20 KWNS 152245
SEL0  
SPC WW 152245
ALZ000-FLZ000-CWZ000-161100-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 490
NWS Storm Prediction Center Norman OK
550 PM CDT Tue Sep 15 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  A small part of southwest Alabama
  Much of the Florida Panhandle
  Coastal Waters

* Effective this Tuesday afternoon and Wednesday morning from 550
  PM until 600 AM CDT.

* Primary threats include...
  A couple tornadoes possible

SUMMARY...Hurricane Sally will continue to move very slowly toward
the coast through early Wednesday.  Convective bands will spread
inland to the east of the center, and a couple of tornadoes will be
possible overnight as embedded supercells reach the coast.

The tornado watch area is approximately along and 60 statute miles
north and south of a line from 40 miles west southwest of Pensacola
FL to 35 miles south of Tallahassee FL. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU0).

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 489. Watch number 489 will not be in effect after
550 PM CDT. 

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 13040.

...Thompson

Tornado Watches in Florida, 2020Tornado Watches in Alabama, 2020Every tornado watch in 2020

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.