Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 15, NWS Mobile, AL

September 4, 2018Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Sep 4, 2018, 9:29 PM CDT for Escambia County, Santa Rosa County, Florida. It was in force for 31 min. 1 report 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
Sep 4, 2018, 9:29 PM CDT (02:29 UTC)
Expired
Sep 4, 2018, 10:00 PM CDT
In force
31 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 100 km from the middle of the area, began a volume at 02:31 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
Sep 4, 9:48 PM CDTTORNADO2 E Pace, FLSANTA ROSE COUNTY CALL CENTER REPORTED A TORNADO NEAR THE PEA RIDGE COMMUNITY AROUND 9:48PM. TIME ESTIMATED FROM RADAR.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Sep 4, 6:51 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.5 hours before the alert went out and 244 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 00:00Z on 2018-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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, Slidell Radar S, LA at 00:00Z on 2018-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -73 square meters per square second.193958Sfc1 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
32 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-73 m²/s²
0-3 km storm-relative helicity
-21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

432 
WFUS54 KMOB 050229
TORMOB
FLC033-113-050300-
/O.NEW.KMOB.TO.W.0015.180905T0229Z-180905T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
929 PM CDT TUE SEP 4 2018

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southwestern Santa Rosa County in northwestern Florida...
  Central Escambia County in northwestern Florida...

* Until 1000 PM CDT.
    
* At 928 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Navarre, or 7 miles south of
  Bagdad, moving northwest at 55 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...
  Bagdad around 935 PM CDT.
  Pace, Milton, Pea Ridge and Floridatown around 940 PM CDT.
  Point Baker around 945 PM CDT.
  Molino around 955 PM 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.

&&

LAT...LON 3073 8746 3082 8714 3047 8690 3042 8701
TIME...MOT...LOC 0228Z 144DEG 49KT 3049 8700 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
2 follow-up statements
340 
WWUS54 KMOB 050239
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
939 PM CDT TUE SEP 4 2018

FLC033-113-050300-
/O.CON.KMOB.TO.W.0015.000000T0000Z-180905T0300Z/
Santa Rosa FL-Escambia FL-
939 PM CDT TUE SEP 4 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
SOUTHWESTERN SANTA ROSA AND CENTRAL ESCAMBIA COUNTIES...
    
At 937 PM CDT, a couple of severe thunderstorms capable of producing 
a tornadoes. The first tornadic storm was located over Pace, moving 
northwest at 55 mph. A second tornadic storm was located just south 
of Galt City also moving northwest at 55 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...
  Molino around 1000 PM 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.

&&

LAT...LON 3073 8746 3082 8714 3053 8697 3048 8706
TIME...MOT...LOC 0237Z 129DEG 29KT 3061 8717 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
726 
WWUS54 KMOB 050253
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
953 PM CDT TUE SEP 4 2018

FLC033-113-050300-
/O.CON.KMOB.TO.W.0015.000000T0000Z-180905T0300Z/
Santa Rosa FL-Escambia FL-
953 PM CDT TUE SEP 4 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
SOUTHWESTERN SANTA ROSA AND CENTRAL ESCAMBIA COUNTIES...
    
At 952 PM CDT, a confirmed tornado was located over Galt City, or 
near Milton, moving northwest at 35 mph.

HAZARD...Damaging tornado.

SOURCE...ASOS contract observer confirmed tornado.

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 tornadic thunderstorm will remain over mainly rural areas of
southwestern Santa Rosa and central Escambia Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

&&

LAT...LON 3073 8746 3082 8714 3053 8697 3048 8706
TIME...MOT...LOC 0252Z 141DEG 24KT 3061 8708 

TORNADO...OBSERVED
HAIL...0.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 8:24 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa12 hr
Sep 4, 8:31 PM CDTRiver Flood WarningMOBEscambia4 days
Sep 4, 9:55 PM CDTTornado Warning Tornado observedMOBSanta Rosa27 min
Sep 4, 10:45 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa12 hr
Sep 5, 3:10 AM CDTTornado WarningMOBOkaloosa, Santa Rosa29 min
Sep 5, 3:31 AM CDTTornado WarningMOBOkaloosa19 min
Sep 5, 5:15 AM CDTCoastal Flood AdvisoryMOBEscambia, Santa Rosa9 hr
Sep 5, 5:15 AM CDTHigh Surf AdvisoryMOBEscambia, Santa Rosa9 hr
Sep 5, 7:54 AM CDTFlash Flood WarningMOBEscambia, Santa Rosa6 hr
Sep 5, 9:57 AM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa6 hr
Sep 5, 1:50 PM CDTAreal Flood WarningMOBEscambia, Santa Rosa6 hr

Nearby

Tornado Warnings in Florida, 2018Every tornado warning in 2018Tornadoes in 2018

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.