Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 54, NWS Mobile, AL

October 7, 2017Baldwin County, Alabama

NWS Mobile, AL issued this tornado warning at Oct 7, 2017, 1:46 PM CDT for Baldwin County, Alabama. It was in force for 29 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: Oct 7, 2017, 1:46 PM CDT (18:46 UTC)
Expired: Oct 7, 2017, 2:15 PM CDT
In force: 29 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 53 km from the middle of the area, began a volume at 18:46 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

Time	Report	Where	Remark
Oct 7, 1:58 PM CDT	TORNADO	1 E Gulf Shores, AL	VIDEO FROM SOCIAL MEDIA OF A WATERSPOUT MOVING ONTO THE BEACH NEAR GULF SHORES. NO REPORTS OF DAMAGE AT THIS TIME.

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 176 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1577 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 467 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 251 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

046 
WFUS54 KMOB 071846
TORMOB
ALC003-071915-
/O.NEW.KMOB.TO.W.0054.171007T1846Z-171007T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
146 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 215 PM CDT
    
* At 146 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles south of Orange Beach, moving northwest 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...
  Gulf Shores around 155 PM CDT. 
  Bon Secour around 205 PM CDT. 
  Magnolia Springs around 215 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 8785 3032 8802 3035 8799 3036 8797
      3036 8798 3052 8782 3022 8749
TIME...MOT...LOC 1846Z 129DEG 31KT 3020 8762 

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

$$

05/RR

2 follow-up statements

207 
WWUS54 KMOB 071856
SVSMOB

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

ALC003-071915-
/O.CON.KMOB.TO.W.0054.000000T0000Z-171007T1915Z/
Baldwin AL-
156 PM CDT SAT OCT 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...
    
At 156 PM CDT, a confirmed waterspout was located just offshore over
Gulf Shores, moving northwest at 35 mph.

HAZARD...Tornado. 

SOURCE...Weather spotters confirmed waterspout moving onshore. 

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 tornado will be near...
  Bon Secour around 205 PM CDT. 
  Magnolia Springs around 215 PM CDT. 

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 3022 8785 3032 8802 3035 8799 3036 8797
      3036 8798 3052 8782 3022 8749
TIME...MOT...LOC 1856Z 129DEG 31KT 3025 8770 

TORNADO...OBSERVED
HAIL...0.00IN

$$

05

505 
WWUS54 KMOB 071907
SVSMOB

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

ALC003-071915-
/O.CON.KMOB.TO.W.0054.000000T0000Z-171007T1915Z/
Baldwin AL-
207 PM CDT SAT OCT 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...
    
At 206 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Bon Secour, or 6 miles northwest of Gulf Shores, 
moving northwest at 35 mph. This storm has a history of producing 
waterspouts offshore. 

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...
  Magnolia Springs around 215 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 3035 8799 3036 8797 3036 8798 3052 8782
      3030 8758 3027 8781
TIME...MOT...LOC 1906Z 129DEG 31KT 3031 8778 

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

$$
05

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 9:36 PM CDT	River Flood Warning	MOB	Baldwin	3 days
Oct 6, 9:39 PM CDT	River Flood Warning	MOB	Baldwin	66 hr
Oct 7, 9:29 AM CDT	River Flood Warning	MOB	Baldwin	60 hr
Oct 7, 1:36 PM CDT	Special Marine Warning	MOB		39 min
Oct 7, 2:40 PM CDT	Special Weather Statement	MOB	Baldwin	35 min
Oct 7, 6:03 PM CDT	Special Marine Warning	MOB		42 min
Oct 7, 6:17 PM CDT	Tornado Warning	MOB	Baldwin	43 min
Oct 7, 6:27 PM CDT	Tornado Warning	MOB	Baldwin, Mobile, Washington	33 min
Oct 7, 6:31 PM CDT	Special Marine Warning	MOB		59 min
Oct 7, 6:43 PM CDT	Tornado Warning	MOB	Baldwin	16 min
Oct 7, 6:57 PM CDT	Special Marine Warning	MOB		48 min

Nearby

Tornado Warnings in Alabama, 2017 Every tornado warning in 2017 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.