Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 62, NWS Mobile, AL

October 7, 2017Baldwin County, Alabama

NWS Mobile, AL issued this tornado warning at Oct 7, 2017, 9:27 PM CDT for Baldwin County, Alabama. It was in force for 48 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
Oct 7, 2017, 9:27 PM CDT (02:27 UTC)
Expired
Oct 7, 2017, 10:15 PM CDT
In force
48 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 56 km from the middle of the area, began a volume at 02:28 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
Oct 7, 7:05 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.5 hours before the alert went out and 191 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 2017-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -81 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

514 
WFUS54 KMOB 080227
TORMOB
ALC003-080315-
/O.NEW.KMOB.TO.W.0062.171008T0227Z-171008T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
927 PM CDT SAT OCT 7 2017

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southwestern Baldwin County in southwestern Alabama...

* Until 1015 PM CDT
    
* At 927 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Orange Beach, moving northwest 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...
  Gulf Shores around 930 PM CDT. 
  Bon Secour and Elberta around 940 PM CDT. 
  Foley and Magnolia Springs around 945 PM CDT. 
  Summerdale around 950 PM CDT. 
  Robertsdale around 955 PM CDT. 
  Silverhill around 1000 PM CDT. 
  Fairhope and Loxley around 1005 PM CDT. 
  Daphne around 1010 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 3022 8768 3064 8806 3066 8806 3065 8804
      3067 8803 3067 8802 3068 8802 3080 8781
      3031 8748 3030 8749 3028 8753 3030 8747
      3029 8747 3028 8752 3026 8745 3022 8752
TIME...MOT...LOC 0227Z 145DEG 36KT 3028 8759 

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

$$
2 follow-up statements
031 
WWUS54 KMOB 080250
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
950 PM CDT SAT OCT 7 2017

ALC003-080315-
/O.CON.KMOB.TO.W.0062.000000T0000Z-171008T0315Z/
Baldwin AL-
950 PM CDT SAT OCT 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...
    
At 948 PM CDT, the storm which prompted the original warning has 
weakened, but a new severe thunderstorm capable of producing a 
tornado was located 10 miles southeast of Orange Beach, moving north 
at 35 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...
  Orange Beach and Perdido Beach around 1010 PM CDT. 
  Foley and Elberta around 1015 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 3022 8768 3064 8806 3066 8806 3065 8804
      3067 8803 3067 8802 3068 8802 3080 8781
      3031 8748 3030 8749 3028 8753 3030 8747
      3029 8747 3028 8752 3026 8745 3022 8752
TIME...MOT...LOC 0248Z 159DEG 30KT 3014 8748 

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

$$
312 
WWUS54 KMOB 080318
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1018 PM CDT SAT OCT 7 2017

ALC003-080328-
/O.EXP.KMOB.TO.W.0062.000000T0000Z-171008T0315Z/
Baldwin AL-
1018 PM CDT SAT OCT 7 2017

...THE TORNADO WARNING FOR SOUTHWESTERN BALDWIN COUNTY HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.

A tornado watch remains in effect until 200 AM CDT for southwestern
Alabama...and northwestern Florida.

LAT...LON 3022 8768 3064 8806 3066 8806 3065 8804
      3067 8803 3067 8802 3068 8802 3080 8781
      3031 8748 3030 8749 3028 8753 3030 8747
      3029 8747 3028 8752 3026 8745 3022 8752
TIME...MOT...LOC 0318Z 145DEG 36KT 3038 8767 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 7:23 PM CDTSpecial Marine WarningMOB67 min
Oct 7, 7:28 PM CDTTornado WarningMOBBaldwin, Mobile, Washington47 min
Oct 7, 7:28 PM CDTTornado WarningMOBBaldwin, Mobile32 min
Oct 7, 7:33 PM CDTSpecial Marine WarningMOB57 min
Oct 7, 8:11 PM CDTTornado WarningMOBWashington20 min
Oct 7, 8:21 PM CDTSpecial Marine WarningMOB54 min
Oct 7, 9:13 PM CDTTornado WarningMOBBaldwin32 min
Oct 7, 9:18 PM CDTSpecial Marine WarningMOB57 min
Oct 7, 9:43 PM CDTTornado WarningMOBBaldwin32 min
Oct 7, 9:52 PM CDTFlash Flood WarningMOBBaldwin6 hr
Oct 7, 10:39 PM CDTSpecial Marine WarningMOB36 min
Oct 7, 11:01 PM CDTFlash Flood WarningMOBBaldwin, Clarke, Escambia, Mobile, Monroe, Washington6 hr
Oct 7, 11:46 PM CDTFlash Flood WarningMOBBaldwin, Conecuh, Escambia, Monroe6 hr
Oct 8, 1:31 AM CDTFlash Flood WarningMOBChoctaw, Clarke, Conecuh, Monroe, Washington, Wilcox6 hr
Oct 8, 2:06 AM CDTFlash Flood WarningMOBConecuh, Covington, Escambia7 hr
Oct 8, 2:53 AM CDTFlash Flood WarningMOBButler, Conecuh, Covington, Monroe, Wilcox6 hr
Oct 8, 3:41 AM CDTAreal Flood WarningMOBBaldwin6 hr
Oct 8, 3:51 AM CDTAreal Flood WarningMOBMobile6 hr
Oct 8, 4:46 AM CDTFlash Flood WarningMOBButler, Wilcox4 hr
Oct 8, 4:58 AM CDTAreal Flood WarningMOBBaldwin, Clarke, Escambia, Mobile, Monroe, Washington6 hr
Oct 8, 5:37 AM CDTAreal Flood WarningMOBBaldwin, Conecuh, Escambia, Monroe6 hr
Oct 8, 6:15 AM CDTFlash Flood WarningMOBButler, Covington, Crenshaw3 hr
Oct 8, 7:20 AM CDTAreal Flood WarningMOBChoctaw, Clarke, Conecuh, Monroe, Washington, Wilcox6 hr
Oct 8, 8:13 AM CDTSmall Craft AdvisoryMOB17 hr
Oct 8, 10:14 AM CDTRiver Flood WarningMOBCovington, Escambia63 hr
Oct 8, 10:19 AM CDTRiver Flood WarningMOBMobile11 hr
Oct 8, 10:20 AM CDTHigh Surf AdvisoryMOBBaldwin, Mobile21 hr
Oct 8, 11:09 AM CDTAreal Flood WarningMOBButler, Conecuh, Covington, Escambia6 hr

Nearby

Tornado Warnings in Alabama, 2017Every tornado warning in 2017Tornadoes in 2017

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.