Alert archive / Alabama / Tornado Warnings in 2020

Tornado Warning 67, NWS Mobile, AL

October 10, 2020Mobile County, Alabama

NWS Mobile, AL issued this tornado warning at Oct 10, 2020, 5:28 AM CDT for Mobile County, Alabama. It was in force for 17 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 10, 2020, 5:28 AM CDT (10:28 UTC)
Expired
Oct 10, 2020, 5:45 AM CDT
In force
17 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Mobile County, AL

The radar

The Mobile radar (KMOB), 26 km from the middle of the area, began a volume at 10:32 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 10, 4:00 AM CDTTornado WatchSPC10 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.5 hours before the alert went out and 158 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 2020-10-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 778 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2020-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 402 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
778 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
649 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
402 m²/s²
0-3 km storm-relative helicity
470 m²/s²
Significant tornado parameter
2.1
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

979 
WFUS54 KMOB 101028
TORMOB
ALC097-101045-
/O.NEW.KMOB.TO.W.0067.201010T1028Z-201010T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
528 AM CDT Sat Oct 10 2020

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  South central Mobile County in southwestern Alabama...

* Until 545 AM CDT.
    
* At 528 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles north of Alabama Port, or 7 miles southeast of
  Theodore, moving north at 50 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 tornadic thunderstorm will remain over mainly rural areas of
  south central Mobile County.

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 3039 8809 3041 8814 3065 8811 3062 8795
TIME...MOT...LOC 1028Z 197DEG 44KT 3045 8811 

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

$$
Black
1 follow-up statement
668 
WWUS54 KMOB 101034
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
534 AM CDT Sat Oct 10 2020

ALC097-101045-
/O.CON.KMOB.TO.W.0067.000000T0000Z-201010T1045Z/
Mobile AL-
534 AM CDT Sat Oct 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 AM CDT FOR CENTRAL
MOBILE COUNTY...
    
At 534 AM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles east of Theodore, moving north at 50 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 tornadic thunderstorm will remain over mainly rural areas of
central Mobile County.

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 3047 8813 3065 8811 3062 8795 3045 8805
TIME...MOT...LOC 1034Z 197DEG 44KT 3052 8808 

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

$$

Black

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 1:36 AM CDTSpecial Marine WarningMOB24 min
Oct 10, 3:26 AM CDTSpecial Marine WarningMOB47 min
Oct 10, 4:43 AM CDTSpecial Marine WarningMOB92 min
Oct 10, 4:53 AM CDTSevere Thunderstorm WarningMOBMobile37 min
Oct 10, 5:00 AM CDTSpecial Marine WarningMOB30 min
Oct 10, 5:00 AM CDTTornado WarningMOBMobile30 min
Oct 10, 5:17 AM CDTTornado Warning Tornado observedMOBMobile28 min
Oct 10, 5:21 AM CDTSpecial Marine WarningMOB39 min
Oct 10, 5:42 AM CDTTornado WarningMOBBaldwin, Clarke, Mobile18 min
Oct 10, 5:44 AM CDTTornado WarningMOBBaldwin31 min
Oct 10, 5:57 AM CDTTornado WarningMOBClarke, Mobile, Washington12 min
Oct 10, 6:01 AM CDTTornado WarningMOBCovington44 min
Oct 10, 6:13 AM CDTSpecial Marine WarningMOB2 hr
Oct 10, 9:03 AM CDTSpecial Marine WarningMOB117 min
Oct 10, 9:10 AM CDTRiver Flood WarningMOBMobile11 hr
Oct 10, 11:15 AM CDTSpecial Marine WarningMOB90 min
Oct 10, 12:43 PM CDTSpecial Marine WarningMOB92 min
Oct 10, 2:15 PM CDTSpecial Marine WarningMOB60 min

Nearby

Tornado Warnings in Alabama, 2020Every tornado warning in 2020Tornadoes in 2020

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.