Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 55, NWS Mobile, AL

August 30, 2021Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Aug 30, 2021, 8:14 AM CDT for Santa Rosa County, Florida. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 30, 2021, 8:14 AM CDT (13:14 UTC)
Expired
Aug 30, 2021, 9:00 AM CDT
In force
46 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 109 km from the middle of the area, began a volume at 13:17 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 30, 5:48 AM CDTTornado WatchSPC10 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.2 hours before the alert went out and 255 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, Slidell Radar S, LA at 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 881 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 386 square meters per square second.19395878Sfc1 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
881 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
386 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
1.1
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

919 
WFUS54 KMOB 301314
TORMOB
FLC113-301400-
/O.NEW.KMOB.TO.W.0055.210830T1314Z-210830T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
814 AM CDT Mon Aug 30 2021

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Western Santa Rosa County in northwestern Florida...

* Until 900 AM CDT.
    
* At 814 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Bagdad, moving north at 60 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Roeville around 820 AM CDT.
  Point Baker around 825 AM CDT.
  Jay around 840 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3049 8711 3061 8720 3097 8720 3099 8717
      3100 8718 3100 8691 3062 8698 3047 8705
TIME...MOT...LOC 1314Z 182DEG 50KT 3057 8707 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
2 follow-up statements
689 
WWUS54 KMOB 301324
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
824 AM CDT Mon Aug 30 2021

FLC113-301400-
/O.CON.KMOB.TO.W.0055.000000T0000Z-210830T1400Z/
Santa Rosa FL-
824 AM CDT Mon Aug 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR WESTERN
SANTA ROSA COUNTY...
    
At 824 AM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles north of Point Baker, or 10 miles north of
Milton, moving north at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Jay around 845 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3049 8711 3061 8720 3097 8720 3099 8717
      3100 8718 3100 8691 3062 8698 3047 8705
TIME...MOT...LOC 1324Z 179DEG 33KT 3079 8703 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
716 
WWUS54 KMOB 301331
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
831 AM CDT Mon Aug 30 2021

FLC113-301400-
/O.CON.KMOB.TO.W.0055.000000T0000Z-210830T1400Z/
Santa Rosa FL-
831 AM CDT Mon Aug 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR NORTH
CENTRAL SANTA ROSA COUNTY...
    
At 831 AM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southeast of Jay, or 15 miles north of Milton,
moving north at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Jay around 845 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3075 8708 3099 8717 3100 8718 3100 8691
      3075 8696
TIME...MOT...LOC 1331Z 171DEG 35KT 3086 8703 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:19 PM CDTRiver Flood WarningMOBEscambia49 hr
Aug 29, 8:20 PM CDTRiver Flood WarningMOBOkaloosa62 hr
Aug 29, 8:21 PM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa38 hr
Aug 29, 8:23 PM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa30 hr
Aug 30, 5:43 AM CDTTornado WarningMOBEscambia31 min
Aug 30, 6:42 AM CDTFlash Flood WarningMOBEscambia5 hr
Aug 30, 8:32 AM CDTFlash Flood WarningMOBSanta Rosa4 hr
Aug 30, 9:12 AM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa4 hr
Aug 30, 12:03 PM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa75 min
Aug 30, 4:16 PM CDTSpecial Weather StatementMOBSanta Rosa89 min

Nearby

Tornado Warnings in Florida, 2021Every tornado warning in 2021Tornadoes in 2021

Sources

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.