Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 83, NWS Mobile, AL

April 13, 2020Okaloosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Apr 13, 2020, 1:55 AM CDT for Okaloosa County, Florida. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 13, 2020, 1:55 AM CDT (06:55 UTC)
Expired
Apr 13, 2020, 2:25 AM CDT
In force
30 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 61 km from the middle of the area, began a volume at 06:58 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.

What was reported inside it

TimeReportWhereRemark
Apr 13, 1:58 AM CDTTSTM WND GST 506 Wnw Valparaiso, FLCORRECTS PREVIOUS LSR TO THE CORRECT TIME. THUNDERSTORM WIND GUST OF 50.3 KNOTS REPORTED AT EGLIN OBSERVTION SITE B71. REPORTED BY EGLIN PERSONNEL.
Apr 13, 1:58 AM CDTTSTM WND GST 586 Wnw Valparaiso, FLCORRECTS PREVIOUS REPORT FOR THE MEASURED WIND SPEED. THUNDERSTORM WIND GUST OF 50.3 KNOTS, 58 MPH, REPORTED AT EGLIN OBSERVTION SITE B71. REPORTED BY EGLIN PERSONNEL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 3 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 12, 10:45 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 6.9 hours before the alert went out and 215 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2020-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 854 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2020-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
854 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
299 m²/s²
Significant tornado parameter
0.6
Supercell composite
6.7

Open this sounding in Storm Lab

The text

As transmitted.

607 
WUUS54 KMOB 130655
SVRMOB
FLC091-130745-
/O.NEW.KMOB.SV.W.0083.200413T0655Z-200413T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
155 AM CDT Mon Apr 13 2020

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southern Okaloosa County in northwestern Florida...

* Until 245 AM CDT.

* At 155 AM CDT, severe thunderstorms were located along a line
  extending from 10 miles east of Crestview to 6 miles northwest of
  Valparaiso to 7 miles northeast of Navarre Beach, moving east at 60
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Wright, Fort Walton Beach, Niceville, Destin, Eglin AFB,
  Valparaiso, Mary Esther, Ocean City, Lake Lorraine, Shalimar and
  Cinco Bayou.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for northwestern
Florida.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3038 8684 3039 8680 3039 8684 3040 8685
      3041 8680 3051 8680 3059 8664 3085 8639
      3046 8639 3048 8633 3048 8628 3040 8628
      3039 8629 3040 8630 3042 8631 3038 8633
      3040 8639 3028 8639 3029 8679
TIME...MOT...LOC 0655Z 252DEG 52KT 3078 8640 3059 8656 3048 8680 

HAIL...<.75IN
WIND...60MPH
 
$$

JLH
2 follow-up statements
494 
WWUS54 KMOB 130718
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
218 AM CDT Mon Apr 13 2020

FLC091-130745-
/O.CON.KMOB.SV.W.0083.000000T0000Z-200413T0745Z/
Okaloosa FL-
218 AM CDT Mon Apr 13 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR SOUTHEASTERN OKALOOSA COUNTY...

At 217 AM CDT, severe thunderstorms were located along a line
extending from 14 miles south of Samson to 6 miles west of De Funiak
Springs to 3 miles northwest of Valparaiso, moving northeast at 70
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Niceville, Destin, Eglin AFB, Valparaiso, Lake Lorraine, Shalimar and
Cinco Bayou.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for northwestern
Florida.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3056 8660 3071 8639 3046 8639 3048 8633
      3047 8630 3048 8628 3040 8628 3039 8629
      3042 8631 3038 8633 3040 8639 3028 8639
      3029 8662
TIME...MOT...LOC 0717Z 245DEG 59KT 3091 8607 3072 8623 3056 8654 

HAIL...<.75IN
WIND...60MPH
 
$$

JLH
927 
WWUS54 KMOB 130725
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
225 AM CDT Mon Apr 13 2020

FLC091-130734-
/O.CAN.KMOB.SV.W.0083.000000T0000Z-200413T0745Z/
Okaloosa FL-
225 AM CDT Mon Apr 13 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OKALOOSA COUNTY
IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CDT for northwestern
Florida.

LAT...LON 3056 8660 3071 8639 3046 8639 3048 8633
      3047 8630 3048 8628 3040 8628 3039 8629
      3042 8631 3038 8633 3040 8639 3028 8639
      3029 8662
TIME...MOT...LOC 0724Z 252DEG 52KT 3093 8599 3074 8615 3058 8646 

$$

JLH

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 13, 12:10 AM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Apr 13, 12:10 AM CDT, 1 hour 45 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Mobile AL
1210 AM CDT Mon Apr 13 2020

.UPDATE...As the thunderstorms continue to move east, counties
continue to be cleared from the Thunderstorms Watch over the
forecast area. The latest to be removed are Wilcox and Baldwin
Counties along with Mobile Bay and the Mississippi sound. Am also
leaving the Gale Warning fall off at 05z, with wind magnitudes
below Gales, and gusts above few.
/16

.AVIATION...
06Z issuance...MVFR conditions were noted along and east of I-65,
with upper end MVFR and VFR conditions west as a loosely organized
line of thunderstorms moves east over eastern portions of the
forecast area. Winds remain strong along and ahead of the line,
with the KMOB VAD showing 50 knots just off the deck. Have kept
the current LLWS wording for a few hours at the beginning of the
current forecast for area TAF sites as a result. As the line
continues to move east and a slowing cold front approaches the
area, VFR conditions and west, then northwest winds around 10
knots will overspread the forecast area. The cold front is
expected to stall south of the coast Monday, with areas along and
southeast of I-65 seeing a return to southerly around 5 knots.
/16

&&

.PREV DISCUSSION... /issued 1119 PM CDT Sun Apr 12 2020/

UPDATE...A new Tornado Watch, #115, has been issued to replace
#110 for the forecast area. This watch is along and east of the
Mobile to Monroe to Butler County line, and is in effect until
11z/ 6 AM CDT. The loosely organized line of precipitation
continues to move east over the Southeast. Strong to severe storms
remain possible, with the latest SPC analysis showing
1000-2000 MUCapes with 65-80knots of effective Bulk Shear and
250-400 m^2/s^2 of shear in the 0-1km layer. Tornadoes and
damaging winds gusts to 70mph continue to remain a threat over the
watch area.
/16

PREV DISCUSSION... /issued 1005 PM CDT Sun Apr 12 2020/

UPDATE...The Coastal Flood Advisory has been extended for another
6 hours, until 09z/4 AM CDT. Area tide gauges show that some have
dropped a foot in water levels, but about half are showing only
minor drops of half a foot or less. Updated products have been
sent.
/16

PREV DISCUSSION... /issued 738 PM CDT Sun Apr 12 2020/

NEAR TERM UPDATE /Now Through Monday night/...00z update...The
latest water vapor imagery shows a mid level trough over the
eastern Central Plains continuing to move east-northeast.
Guidance continues to advertise this trough become negatively
tilted as it move over the Mississippi River. A broad area of
60-70kt 850mb winds continues to be advertised moving east over
the Southeast ahead of the trough through the evening into the
overnight hours. The latest mesoanalysis show abundant
instability (MUCapes of 2000-2500J/kg over southern Mississippi
and southwest Alabama). Combined with 0-1km wind shear values of
400 m^2/s^2 and effective bulk shear values 65-80 knots over
eastern Mississippi and most of Alabama, severe weather continues
to be a threat to the forecast area this evening into the
overnight hours. Most convection at this time is in a roughly
organized band stretching north-northeast from southeast Louisiana
to northern Alabama. The latest radar loop shows this band moving
to the east and am expecting inland southeast Mississippi to
begin to be affected in the next hour. The grids have this
reflected, with only minor tweaking to the grids to reflect
current conditions needed. Tornado Watch #110 is in effect for
counties west of I-65 and Mobile and Perdido Bays along with the
Mississippi Sound through 05z/midnight tonight. The line is
expected to move east of the forecast area by 06z-08Z with a
moderate cold front moving over southeast Mississippi beginning
around 10z tonight.

The strong southerly flow continues to pile water on Mobile Bay
and nearby waters, with the latest NOS water level plots showing
water levels at minor flooding levels and beginning to slowly
drop. The current Coastal Flood Advisory expires at 03z, and will
address a possible extension closer to then. A High Surf Advisory
continues through 09Z and am not anticipating the Advisory being
extended at this point, with winds behind the squall line easing
as they shift to westerly.
/16

AVIATION...
00Z issuance...General MVFR conditions, with strong southerly
winds of 15 to 25 knots, and gusts to 35 knots are indicated in
the latest observations. These conditions are expected to last
through 06z-08z as a squall line moves over southeast Mississippi
between 01z and 03z, then moves east over the forecast area.
Drops in conditions to low end MVFR/IFR levels are expected as the
line passes, with impacts to operations expected due to possible
severe weather and locally heavy rains. The strong low level winds
will also bring strong LLWS of up to 45kts to the area, with
areas southwest of a Waynesboro, MS to Destin, FL the most
affected.

After the line passes, a slowing cold front will move over the
forecast area late tonight into Monday before stalling southeast
of I-65 by 18z. VFR conditions return with winds becoming
northwesterly around 10 knots during the day behind the front,
but as the front stalls and begins to erode, winds along and
southeast of I-65 will switch to southeasterly around 10 knots
between 18z and 00z Tuesday.
/16

PREV DISCUSSION... /issued 447 PM CDT Sun Apr 12 2020/

UPDATE...Products have been updated for Tornado Watch #110 in
effect until midnight, with the area encompassing counties from
Wilcox to Baldwin counties and areas west. This watch is a
Particularly Dangerous Situation watch, with damaging winds to
70mph or more and tornadoes (some strong and long track) possible.
Persons are urged to remain alert to this developing situation.
/16

PREV DISCUSSION... /issued 418 PM CDT Sun Apr 12 2020/

NEAR TERM UPDATE /Now Through Monday/...A significant severe
weather event is expected across the area today into tonight as a
powerful storm system moves across the southeast. Stay weather
aware through the day and make sure to have multiple ways to
receive watches and warnings.

Update...The influences of the upper trough are now being felt as
the cap discussed earlier has eroded and CAPE values have exploded
over our area. Tornadic supercells have developed just to our west
in interior southeaster Mississippi. Conditions talked about in
the previous discussion will remain over the area and these
tornadic supercells are expected to continue across our area. The
greatest threat right now will be north and west of I-65. Given
the parameters in place, tornadoes will be possible and a couple
strong tornadoes cannot be ruled out. As we approach midnight,
high-res guidance continues to paint a picture of clusters of
supercells developing across our interior southeastern Mississippi
and progressing east across our area. These storms will likely
grow upscale into a line near the I-65 corridor and continue to
progress east. Once again we want to emphasize to have multiple
ways of receiving warnings as a lot of this activity will occur
overnight. BB/03

Previous Discussion...The upper low that we have been waiting for
the past few days has opened up as an upper trough over central
Texas and has begun to take on a neutral to negative tilt. At the
base of this trough sits a stout 100 knot 500 mb jet just waiting
to kick off the powder keg of instability over the deep south. At
the surface, a deepening surface low over the Arklatex region will
begin to move northeast into the middle Mississippi valley this
afternoon. Our area is sandwiched between this surface low and a
strong surface high over the Atlantic. This has allowed for strong
surface advection to occur and the surface warm front has raced
north of our area leaving us in the middle of a large warm sector
primed for severe weather. Soundings from Slidell and Birmingham
have shown the classic "loaded gun" sounding with a stout cap
keeping storms at bay for now. As the upper jet ejects over this
region this afternoon and evening, that cap will quickly erode as
ascent increases. Storms will likely develop by late afternoon
into the early evening over interior southeastern Mississippi and
progress eastward throughout the night. The biggest question this
afternoon will be if the cap breaks and we area able to get
surface based storms. This mornings guidance was struggling to
develop storms; however, recent runs have trended to more
development across our area. There is a high likelihood that many
of these storms will be severe. For more on the severe potential
see the severe section below.

Storms will continue into the overnight hours and quickly move
from west to east clearing the area by early morning. Behind the
storms, skies will clear and the sun will likely come out
tomorrow. Temperatures will stay warm tomorrow as the actual front
associated  with this system will be well behind the storms and
likely not move through the area until Monday night. Expect highs
to be in the upper 70s to low 80s today and into the mid 80s
tomorrow.

Along with the potential for severe weather we also have the
potential for strong gradient winds ahead of any severe weather.
We have already seen gusts to almost 40 mph this afternoon and
this is expected to continue into the evening. A wind advisory is
in effect for our whole area. With the strong southerly winds, we
also have the potential for coastal flooding in our flood prone
areas. Current Alabama DOT cameras suggest that water is beginning
to over-wash the Mobile Bay causeway. High tide is not expected
until later this afternoon and more coastal flooding could be
possible. BB/03

Severe...Now to talk about the meat of this event. As mentioned
above the environment this afternoon and evening is primed for
severe weather. MLCAPE has increased to over 2000 J/KG across our
area with steep mid-level lapse rates. Wind shear will be wild
this afternoon and evening with most models depicting 50 to 60
knots of bulk effective shear which would be supportive of
organized severe convection. Along with the bulk shear, hodographs
are wicked with long curved hodographs and 0-1km SRH values of 300
to 400 m2/s2. All this is the calling card for tornadic supercells
across our area and potentially a few strong tornadoes. Expect
several clusters of supercells and bowing segments to develop
across interior southeast Mississippi late this afternoon and move
northeast across our area. The best chance for tornadic supercells
appears to be north and west of Interstate 65. Surface winds will
slowly veer the later we get into the night allowing for more
upscale growth tonight into a squall line for areas east of
Interstate 65. With an 850 jet of 60 to 70 knots, damaging winds
will be the primary hazard with the line. Tornadoes will also
still be possible with the line. BB/03

SHORT TERM /Monday night Through Wednesday night/...The upper
trough that brought the severe weather during the near term
period will continue to progress off the east coast. The adjacent
front will move offshore and stall right along our coastline
Monday night. Zonal flow will return across the area and the front
will begin to slowly move north through the short term period. As
the front moves north a few weak shortwaves will move through the
zonal flow leading to scattered showers in the vicinity of the
diffused boundary. The best shortwave will be on Wednesday as the
best shortwave moves through the flow. Rain will likely be focused
near the coast where the boundary is located. Temperatures will
be mild with the front being diffused by the time it gets here.
Expect highs to be in the low 80s on Tuesday and slightly cooler
on Wednesday due to the ongoing rain. BB/03

EXTENDED TERM /Thursday Through Sunday/...Zonal flow will
continue through the period. A strong upper trough over the
central CONUS will eject over the Midwest on Friday. As the trough
ejects showers and storms will likely develop along the remnant
diffused boundary that continues to linger along the coast. Rain
chances will likely increase on Friday and continue into the
weekend. A more active rain pattern looks to setup in the long
extended as that boundary lingers over our area. This may
actually help with our drought conditions and lack of rain over
the past few months. Will need to keep an eye on the heavy
rainfall potential if this pattern continues. Luckily, this will
help keep temperatures at bay for the most part with highs in the
upper 70s to low 80s. BB/03

MARINE...Strong onshore flow continues through tonight ahead of a
strong upper trough. Frequent gusts to gale force are possible
and a Gale Warning is in effect for all waters including bays and
sounds. A few strong to severe storms will be possible tonight
before clearing the area by early tomorrow morning. Behind the
storms,winds are forecast to decrease by Monday, seas will also
slow to subside. Moderate winds and seas then remain in the
forecast through Thursday. BB/03

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...Wind Advisory until 4 AM CDT Monday for ALZ051>060-261>266.

     High Rip Current Risk through Tuesday morning for ALZ265-266.

     Coastal Flood Advisory until 4 AM CDT Monday for ALZ265-266.

     High Surf Warning until 4 AM CDT Monday for ALZ265-266.

FL...Wind Advisory until 4 AM CDT Monday for FLZ201>206.

     High Rip Current Risk through Tuesday morning for FLZ202-204-206.

     Coastal Flood Advisory until 4 AM CDT Monday for FLZ202-204-206.

     High Surf Warning until 4 AM CDT Monday for FLZ202-204-206.

MS...Wind Advisory until 4 AM CDT Monday for MSZ067-075-076-078-079.

GM...Small Craft Advisory until 10 AM CDT Monday for GMZ630>636-650-
     655-670-675.

&&

This product is also available on the web at:
http://weather.gov/mob
Hazardous weather outlook, Apr 12, 5:02 PM CDT, 8 hours 53 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Mobile AL
502 PM CDT Sun Apr 12 2020

ALZ265-266-132215-
Mobile Coastal-Baldwin Coastal-
502 PM CDT Sun Apr 12 2020

...HIGH SURF WARNING IN EFFECT UNTIL 4 AM CDT MONDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...TORNADO WATCH 110 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
...HIGH RIP CURRENT RISK IN EFFECT FROM 4 AM CDT MONDAY THROUGH
TUESDAY MORNING...

This Hazardous Weather Outlook is for southwest Alabama.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Tornado Watch.
   Wind Advisory.
   Coastal Flood Advisory.
   High Surf Warning.
   High Rip Current Risk.

Severe weather likely this afternoon into tonight. All modes of
severe weather impacts remain possible, including tornadoes (some
strong and long-track), damaging straight line winds up to 70 mph
and greater, and large hail. Locally heavy rain in a short period of
time is also possible, increasing the threat of localized flooding in
lower lying areas subject to poor drainage during heavy rainfall
episodes but over flood threat from heavy rain will be limited.
Storms will be scattered during the afternoon hours, then a more
solid line of organized storms will likely move east across the area
during the evening hours into the early overnight hours.

Away from storms this afternoon into this evening, southerly winds
20 to 30 mph with gusts to near 40 mph likely and a Wind Advisory is
in effect.

At the beaches this afternoon and tonight, dangerous to potentially
deadly rip currents, high surf expected. Instances of coastal
flooding expected across portions of the area, mainly around Mobile
Bay, where water levels of 2 to 3 feet above normally dry ground
could occur. Timing for coastal flood potential mainly this
afternoon.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Dangerous rip currents continue to pose a hazard through Tuesday
morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

ALZ051>055-261>264-MSZ067-075-076-079-132215-
Choctaw-Washington-Clarke-Wilcox-Monroe-Mobile Inland-Baldwin Inland-
Mobile Central-Baldwin Central-Wayne-Perry-Greene-George-
502 PM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...TORNADO WATCH 110 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

This Hazardous Weather Outlook is for south central Alabama,
southwest Alabama and southeast Mississippi.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Tornado Watch.
   Wind Advisory.

Severe weather likely this afternoon into tonight. All modes of
severe weather impacts remain possible, including tornadoes (some
strong and long-track), damaging straight line winds up to 70 mph
and greater, and large hail. Locally heavy rain in a short period of
time is also possible, increasing the threat of localized flooding in
lower lying areas subject to poor drainage during heavy rainfall
episodes but over flood threat from heavy rain will be limited.
Storms will be scattered this afternoon, then a more solid line of
organized storms will likely move east across the area during the
evening hours into the early overnight hours.

Away from storms today, southerly winds 20 to 30 mph with gusts to
near 40 mph likely and a Wind Advisory is in effect.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

ALZ056>060-FLZ201-203-205-MSZ078-132215-
Conecuh-Butler-Crenshaw-Escambia-Covington-Escambia Inland-
Santa Rosa Inland-Okaloosa Inland-Stone-
502 PM CDT Sun Apr 12 2020

...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...

This Hazardous Weather Outlook is for south central Alabama,
northwest Florida and southeast Mississippi.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Wind Advisory.

Severe weather likely this afternoon into tonight. All modes of
severe weather impacts remain possible, including tornadoes (some
strong and long-track), damaging straight line winds up to 70 mph
and greater, and large hail. Locally heavy rain in a short period of
time is also possible, increasing the threat of localized flooding in
lower lying areas subject to poor drainage during heavy rainfall
episodes but over flood threat from heavy rain will be limited.
Storms will be scattered during this afternoon, then a more solid
line of organized storms will likely move east across the area during
the evening hours into the early overnight hours.

Away from storms today, southerly winds 20 to 30 mph with gusts to
near 40 mph likely and a Wind Advisory is in effect.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

FLZ202-204-206-132215-
Escambia Coastal-Santa Rosa Coastal-Okaloosa Coastal-
502 PM CDT Sun Apr 12 2020

...HIGH SURF WARNING IN EFFECT UNTIL 4 AM CDT MONDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT MONDAY...
...HIGH RIP CURRENT RISK IN EFFECT FROM 4 AM CDT MONDAY THROUGH
TUESDAY MORNING...

This Hazardous Weather Outlook is for northwest Florida.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Wind Advisory.
   Coastal Flood Advisory.
   High Surf Warning.
   High Rip Current Risk.

Severe weather likely this afternoon into tonight. All modes of
severe weather impacts remain possible, including tornadoes (some
strong and long-track), damaging straight line winds up to 70 mph
and greater, and large hail. Locally heavy rain in a short period of
time is also possible, increasing the threat of localized flooding in
lower lying areas subject to poor drainage during heavy rainfall
episodes but over flood threat from heavy rain will be limited.
Storms will be scattered this afternoon, then a more solid line of
organized storms will likely move east across the area during the
evening hours into the early overnight hours.

Away from storms today, southerly winds 20 to 30 mph with gusts to
near 40 mph likely and a Wind Advisory is in effect.

At the beaches this afternoon and tonight, dangerous to potentially
deadly rip currents, high surf expected. Instances of coastal
flooding expected across portions of the area, mainly around Mobile
Bay, where water levels of 2 to 3 feet above normally dry ground
could occur. Timing for coastal flood potential mainly during the
afternoon hours today.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Dangerous rip currents continue to pose a hazard through Tuesday
morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

GMZ630>636-650-655-670-675-132215-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola FL
out 20 NM-Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
502 PM CDT Sun Apr 12 2020

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM CDT
MONDAY...

This Hazardous Weather Outlook is for the coastal waters of Alabama
and northwest Florida.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Gale Warning.
   Small Craft Advisory.

Winds and seas will be hazardous for small craft. Wind gusts up to
near 40s kts expected from noon today to midnight tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   Small Craft Advisory.

Winds and seas gradually diminish mid to late week, but moderate
winds and waves continue.

In the hours before

Local storm report, Apr 13, 12:00 AM CDT, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1200 AM CDT MON APR 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0917 PM     TSTM WND DMG     4 SSE COFFEEVILLE       31.70N 88.06W
04/12/2020                   CLARKE             AL   EMERGENCY MNGR

            NUMEROUS TREES DOWN ON HWY 69 BETWEEN
            COFFEEVILLE AND SALIPTA.

&&

JFB
Local storm report, Apr 13, 12:01 AM CDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1201 AM CDT MON APR 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0907 PM     TSTM WND DMG     3 E CULLOMBURG          31.72N 88.25W
04/12/2020                   CHOCTAW            AL   EMERGENCY MNGR

            SEVERAL DOWNED TREES REPORTED AROUND
            CULLOMBURG AND BLADON SPRINGS.

&&

JFB
Local storm report, Apr 13, 12:03 AM CDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1203 AM CDT MON APR 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0912 PM     TSTM WND DMG     WEST BEND               31.82N 88.13W
04/12/2020                   CLARKE             AL   EMERGENCY MNGR

            NUMEROUS TREES DOWN.

&&

JFB
Local storm report, Apr 13, 1:07 AM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
107 AM CDT MON APR 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     NON-TSTM WND DMG 2 E EAST BREWTON        31.11N 87.03W
04/12/2020                   ESCAMBIA           AL   BROADCAST MEDIA

            MULTIPLE LARGE TREES DOWN ON RIDGE ROAD EAST
            OF EAST BREWTON.

&&

MB
Special weather statement, Apr 13, 1:12 AM CDT, 43 minutes before
Special Weather Statement
National Weather Service Mobile AL
112 AM CDT Mon Apr 13 2020

ALZ058-060-130700-
Covington AL-Crenshaw AL-
112 AM CDT Mon Apr 13 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...SOUTHEASTERN CRENSHAW AND EASTERN COVINGTON COUNTIES UNTIL
200 AM CDT...

At 112 AM CDT, the strong thunderstorms were located along a line
extending from 3 miles south of Glenwood to near Laurel Hill, and
moving east at 40 mph.

Wind gusts of 40 to 50 mph will be possible with these storms.

Locations impacted include...
Opp, Florala, Brantley, Lockhart and Glenwood.

A Tornado Watch remains in effect until 600 AM CDT for south central
Alabama.

LAT...LON 3153 8620 3100 8619 3100 8658 3168 8623
      3169 8615 3166 8615 3162 8618 3162 8615
      3154 8614
TIME...MOT...LOC 0612Z 265DEG 35KT 3162 8618 3101 8646
Local storm report, Apr 13, 1:52 AM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
152 AM CDT MON APR 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1050 PM     TSTM WND DMG     2 ESE MT PLEASANT       31.33N 87.67W
04/12/2020                   MONROE             AL   PUBLIC

            MULTIPLE TREES DOWN ALONG WEATHERFORD RD.
            REPORTS VIA SOCIAL MEDIA.

&&

MB

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 12:57 AM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa48 min
Apr 13, 1:18 AM CDTSevere Thunderstorm WarningMOBOkaloosa42 min

Nearby

Severe Thunderstorm Warnings in Florida, 2020Every severe thunderstorm warning in 2020

Sources

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