Alert archive / Alabama / Tornado Warnings in 2017

Tornado Warning 55, NWS Mobile, AL

October 7, 2017Baldwin County, Alabama

NWS Mobile, AL issued this tornado warning at Oct 7, 2017, 6:17 PM CDT for Baldwin County, Alabama. It was in force for 43 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, 6:17 PM CDT (23:17 UTC)
Expired: Oct 7, 2017, 7:00 PM CDT
In force: 43 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), 73 km from the middle of the area, began a volume at 23:19 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, 6:34 PM CDT	TORNADO	2 Ssw Orange Beach, AL	WATERSPOUT REPORTED TO HAVE MOVED ONTO ORANGE BEACH.

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, 11.3 hours before the alert went out and 203 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.

049 
WFUS54 KMOB 072317
TORMOB
ALC003-080000-
/O.NEW.KMOB.TO.W.0055.171007T2317Z-171008T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
617 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 700 PM CDT
    
* At 617 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles southeast of Orange Beach, moving northwest at
  45 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. 

* Locations impacted include...
  Daphne, Fairhope, Gulf Shores, Foley, Orange Beach, Robertsdale,
  Point Clear, Loxley, Magnolia Springs, Bon Secour, Summerdale,
  Silverhill and Elberta.

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 8771 3055 8801 3070 8775 3030 8748
      3030 8750 3028 8753 3029 8750 3029 8748
      3028 8752 3029 8747 3022 8743
TIME...MOT...LOC 2317Z 146DEG 39KT 3015 8751 

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

$$

05/RR

2 follow-up statements

464 
WWUS54 KMOB 072332
SVSMOB

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

ALC003-080000-
/O.CON.KMOB.TO.W.0055.000000T0000Z-171008T0000Z/
Baldwin AL-
632 PM CDT SAT OCT 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...
    
At 631 PM CDT, a confirmed waterspout was located just offshore over
Orange Beach, moving northwest at 45 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. 

Locations impacted include...
Daphne, Fairhope, Foley, Orange Beach, Robertsdale, Point Clear,
Loxley, Magnolia Springs, Bon Secour, Summerdale, Silverhill, Perdido
Beach and Elberta.

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 3055 8801 3070 8775 3032 8749 3031 8750
      3031 8749 3030 8748 3030 8750 3028 8753
      3029 8750 3029 8747 3026 8748 3023 8766
TIME...MOT...LOC 2331Z 146DEG 39KT 3027 8760 

TORNADO...OBSERVED
HAIL...0.00IN

$$
05/RR

881 
WWUS54 KMOB 072344
SVSMOB

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

ALC003-080000-
/O.CON.KMOB.TO.W.0055.000000T0000Z-171008T0000Z/
Baldwin AL-
644 PM CDT SAT OCT 7 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHWESTERN BALDWIN COUNTY...
    
At 644 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Foley, moving northwest at 45 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. 

Locations impacted include...
Daphne, Fairhope, Foley, Robertsdale, Loxley, Magnolia Springs,
Summerdale, Silverhill and Elberta.

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 3032 8772 3055 8801 3070 8775 3039 8754
      3034 8758
TIME...MOT...LOC 2344Z 146DEG 39KT 3039 8770 

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

$$

05/RR

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, 1:46 PM CDT	Tornado Warning	MOB	Baldwin	29 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, 6:27 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.