WW 677 TORNADO AL FL GA CW 091720Z - 100100Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 677
NWS Storm Prediction Center Norman OK
120 PM EDT Fri Oct 9 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Far Southeast Alabama
Florida Panhandle and Big Bend
Far Southwest Georgia
Coastal Waters
* Effective this Friday afternoon and evening from 120 PM until
900 PM EDT.
* Primary threats include...
A few tornadoes likely
SUMMARY...Convective bands associated with Hurricane Isaias will
continue to move north and overspread the Watch area from south to
north. Embedded cells within the bands will pose a risk for
tornadoes with the stronger mesocyclones as a moist maritime
tropical airmass moves inland through the afternoon and early
evening.
The tornado watch area is approximately along and 50 statute miles
north and south of a line from 25 miles west southwest of Crestview
FL to 30 miles north northeast of Cross City FL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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 0.5 inches. Extreme turbulence and surface wind
gusts to 50 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 14030.
...Smith
WW 0677 Status Updates
STATUS REPORT ON WW 677
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S PFN TO
30 NNW PFN TO 5 W DHN.
WW 677 WILL BE ALLOWED TO EXPIRE AT 100100Z.
..THOMPSON..10/09/26
ATTN...WFO...TAE...JAX...MOB...
STATUS REPORT FOR WT 677
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC069-100100-
AL
. ALABAMA COUNTIES INCLUDED ARE
HOUSTON
FLC001-003-005-007-013-023-029-037-039-041-045-047-063-065-067-
073-077-079-083-121-123-125-129-133-100100-
FL
. FLORIDA COUNTIES INCLUDED ARE
ALACHUA BAKER BAY
BRADFORD CALHOUN COLUMBIA
DIXIE FRANKLIN GADSDEN
GILCHRIST GULF HAMILTON
JACKSON JEFFERSON LAFAYETTE
LEON LIBERTY MADISON
MARION SUWANNEE TAYLOR
UNION WAKULLA WASHINGTON
No Mesoscale Discussions are in effect as of Sat Oct 10 00:40:25 UTC 2026.SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0256 PM CDT Fri Oct 09 2026
Valid 092000Z - 101200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE FLORIDA
PANHANDLE INTO NORTHERN FLORIDA...SOUTHEAST ALABAMA...AND SOUTHWEST
GEORGIA...
...SUMMARY...
With the approach of Hurricane Isaias, tornado potential will
continue increasing through the remainder of the afternoon and
continue tonight, especially across the Florida Panhandle into
southeast Alabama and southwest Georgia.
...20Z Update...
The forecast remains on track, and only minor adjustments were made
with this update. For details on the near-term severe risk, see MCD
#2349 and Tornado Watch #677.
..Weinman.. 10/09/2026
.PREV DISCUSSION... /ISSUED 1113 AM CDT Fri Oct 09 2026/
...Florida Panhandle into northern Florida/southern Alabama/southern
Georgia...
Reference the National Hurricane Center for the latest forecast
track/intensity details regarding Hurricane Isaias. The latest
discussion indicates that Isaias has reached major hurricane status
as it moves north-northeastward toward the western Florida
Panhandle/far southern Alabama.
As Isaias approaches the coast, rainbands on its eastern periphery
will spread northward toward the Big Bend of the Florida Panhandle,
far southeastern Alabama and southwestern Georgia this afternoon
into tonight. Throughout the day, a more unstable airmass over the
eastern Gulf will advance northward, resulting in destabilization
over the coastal areas of the Florida Panhandle. The current VAD
profile at KTLH is already supportive of tornado potential (i.e.,
0-1 SRH over 250 m2/s2), and low-level winds and SRH will strengthen
significantly this afternoon and evening. Once the mid 70s F
dewpoints come onshore, persistent, deeper updrafts will be possible
with the propensity to rotate and have the potential to produce
tornadoes, particularly across the Florida Panhandle into
southeastern Alabama and southwestern Georgia.
Additionally, some enhancement to the wind field, potentially
including a convective influence, may occur across southern Alabama
in vicinity of the evolving inverted surface trough late this
afternoon into tonight.
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0438 PM CDT Fri Oct 09 2026
Valid 111200Z - 171200Z
...Synopsis...
An upper-level trough will deepen across the western U.S. while
aiding in the northward transport of deeper remnant tropical
moisture into southern CA and much of the Intermountain West through
D4/Monday. The resultant precipitation from the moisture-laden
mid/upper trough across the West will tame fire weather concerns
across southern CA and the Intermountain West. Mainly dry conditions
will persist across the Columbia Basin southward into northern CA
where dry, post-frontal northerly flow could bring a fire weather
threat to the northern Sacramento Valley on D3/Sunday. Farther east,
widespread rainfall from the remnants of Hurricane Isaias will
similarly reduce fire weather concerns next week for the Southeast.
Areas of receptive fuels in the lower Mississippi River Valley and
Midwest are expected to remain in place through the middle of next
week as above normal temperatures linger across the region. However,
lighter surface winds under a prominent upper ridge will mitigate
fire weather threat across this region.
...Day 3/Sunday - Northern Sacramento Valley...
Increasing northerly winds in a dry, post-frontal environment should
facilitate an increasing fire weather threat for portions of the
northern Sacramento Valley and adjacent foothills on D3/Sunday.
Sustained north winds of 15 mph to locally 20-25 mph with higher
gusts should evolve late D2/Saturday into D3/Sunday. Although much
cooler temperatures behind the front could limit RH reductions to
around 20% by Sunday afternoon, the gusty north winds will be a more
pronounced driver of fire weather concerns where fuels are
receptive. Introduced 40% critical probabilities for the northern
Sacramento Valley and adjacent western foothills to cover this
threat.
..Williams.. 10/09/2026
...Please see www.spc.noaa.gov/fire for graphic product...
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