Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 38, NWS Mobile, AL

June 21, 2017Escambia County, Florida; Escambia County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 21, 2017, 4:17 PM CDT for Escambia County, Florida; Escambia County, Alabama. It was in force for 43 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
Jun 21, 2017, 4:17 PM CDT (21:17 UTC)
Expired
Jun 21, 2017, 5:00 PM CDT
In force
43 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Escambia County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 21:15 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
Jun 21, 10:01 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.3 hours before the alert went out and 228 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 12:00Z on 2017-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 262 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 12:00Z on 2017-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 485 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
262 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
465 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
485 m²/s²
0-3 km storm-relative helicity
506 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

130 
WFUS54 KMOB 212117
TORMOB
ALC053-FLC033-212200-
/O.NEW.KMOB.TO.W.0038.170621T2117Z-170621T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
417 PM CDT WED JUN 21 2017

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Western Escambia County in south central Alabama...
  Northwestern Escambia County in northwestern Florida...

* Until 500 PM CDT
    
* At 416 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Bratt, or 9 miles south of Atmore, moving north 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...
  Bratt around 425 PM CDT. 
  Atmore around 430 PM CDT. 
  I65 And CR 1, Poarch Creek Reservation and I65 And AL 21 around 
  440 PM CDT. 
  McCullough around 445 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 3095 8759 3098 8759 3099 8760 3107 8762
      3124 8762 3123 8755 3125 8752 3125 8751
      3126 8748 3126 8744 3097 8738
TIME...MOT...LOC 2116Z 165DEG 33KT 3089 8748 

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

$$
3 follow-up statements
278 
WWUS54 KMOB 212127
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
427 PM CDT WED JUN 21 2017

ALC053-FLC033-212200-
/O.CON.KMOB.TO.W.0038.000000T0000Z-170621T2200Z/
Escambia AL-Escambia FL-
427 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR WESTERN
ESCAMBIA AND NORTHWESTERN ESCAMBIA COUNTIES...
    
At 426 PM CDT, a severe thunderstorm capable of producing a tornado 
was located just west of Bratt, and just south of Atmore, moving 
north at 30 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...
  Atmore around 435 PM CDT. 
  I65 And CR 1 and I65 And AL 21 around 445 PM CDT. 
  Poarch Creek Reservation around 450 PM CDT. 
  McCullough around 455 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3095 8759 3098 8759 3099 8760 3107 8762
      3124 8762 3123 8755 3125 8752 3125 8751
      3126 8748 3126 8744 3097 8738
TIME...MOT...LOC 2126Z 162DEG 26KT 3095 8750 

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

$$
669 
WWUS54 KMOB 212141
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
441 PM CDT WED JUN 21 2017

FLC033-212151-
/O.CAN.KMOB.TO.W.0038.000000T0000Z-170621T2200Z/
Escambia FL-
441 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR NORTHWESTERN ESCAMBIA COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 700 PM CDT for south central
and southwestern Alabama.

LAT...LON 3107 8762 3124 8762 3123 8755 3125 8752
      3102 8748 3102 8760 3105 8761
TIME...MOT...LOC 2141Z 165DEG 32KT 3107 8754 

$$

ALC053-212200-
/O.CON.KMOB.TO.W.0038.000000T0000Z-170621T2200Z/
Escambia AL-
441 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR WESTERN
ESCAMBIA COUNTY...
    
At 441 PM CDT, a severe thunderstorm capable of producing a tornado 
was located over I65 And CR 1, near Poarch Creek Reservation, 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...
  McCullough around 450 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3107 8762 3124 8762 3123 8755 3125 8752
      3102 8748 3102 8760 3105 8761
TIME...MOT...LOC 2141Z 165DEG 32KT 3107 8754 

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

$$
155 
WWUS54 KMOB 212156
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
456 PM CDT WED JUN 21 2017

ALC053-212206-
/O.EXP.KMOB.TO.W.0038.000000T0000Z-170621T2200Z/
Escambia AL-
456 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR WESTERN ESCAMBIA COUNTY WILL EXPIRE AT 500
PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 700 PM CDT for south central
and southwestern Alabama.

LAT...LON 3107 8762 3124 8762 3123 8755 3125 8752
      3102 8748 3102 8760 3105 8761
TIME...MOT...LOC 2156Z 165DEG 33KT 3120 8758 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 1:56 AM CDTFlash Flood WarningMOBEscambia, Santa Rosa12 hr
Jun 21, 4:33 AM CDTTornado WarningMOBOkaloosa31 min
Jun 21, 6:11 AM CDTTornado WarningMOBOkaloosa22 min
Jun 21, 6:56 AM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa6 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia48 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia12 days
Jun 21, 8:38 AM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa3 days
Jun 21, 8:38 AM CDTRiver Flood WarningMOBOkaloosa3 days
Jun 21, 12:05 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa6 hr
Jun 21, 12:35 PM CDTAreal Flood WarningMOBEscambia, Okaloosa, Santa Rosa24 hr
Jun 21, 2:15 PM CDTTornado WarningMOBOkaloosa, Santa Rosa45 min
Jun 21, 2:44 PM CDTTornado WarningMOBOkaloosa, Santa Rosa30 min
Jun 21, 2:46 PM CDTTornado WarningMOBEscambia59 min
Jun 21, 3:53 PM CDTTornado WarningMOBEscambia52 min
Jun 21, 5:51 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa6 hr
Jun 21, 6:33 PM CDTSpecial Weather StatementMOBEscambia42 min
Jun 20, 8:12 PM CDTSpecial Marine WarningMOB2 hr
Jun 20, 8:19 PM CDTCoastal Flood WarningMOBBaldwin, Mobile50 hr
Jun 20, 8:23 PM CDTAreal Flood AdvisoryMOBBaldwin, Mobile3 hr
Jun 20, 10:07 PM CDTSpecial Marine WarningMOB113 min
Jun 20, 10:16 PM CDTFlash Flood WarningMOBBaldwin, Mobile6 hr
Jun 20, 11:44 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 1:43 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:12 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:47 AM CDTSpecial Marine WarningMOB118 min
Jun 21, 4:15 AM CDTFlash Flood WarningMOBBaldwin, Mobile12 hr
Jun 21, 5:44 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia61 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia67 hr
Jun 21, 10:14 AM CDTAreal Flood AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 4 more6 hr
Jun 21, 11:06 AM CDTFlash Flood WarningMOBButler, Conecuh, Covington, Escambia6 hr
Jun 21, 2:29 PM CDTTornado WarningMOBBaldwin46 min
Jun 21, 2:56 PM CDTSpecial Weather StatementMOBMobile34 min
Jun 21, 2:59 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:10 PM CDTTornado WarningMOBBaldwin25 min
Jun 21, 3:46 PM CDTFlash Flood WarningMOBBaldwin, Clarke, Mobile, Washington6 hr
Jun 21, 3:57 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 4:02 PM CDTRiver Flood WarningMOBMobile3 days
Jun 21, 4:28 PM CDTSpecial Marine WarningMOB92 min
Jun 21, 4:52 PM CDTSevere Thunderstorm WarningMOBMobile38 min
Jun 21, 5:04 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile86 min
Jun 21, 5:42 PM CDTSpecial Marine WarningMOB63 min
Jun 21, 5:48 PM CDTSevere Thunderstorm WarningMOBBaldwin44 min
Jun 21, 5:51 PM CDTSpecial Marine WarningMOB114 min
Jun 21, 6:10 PM CDTSevere Thunderstorm WarningMOBBaldwin26 min
Jun 21, 6:43 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 6:45 PM CDTTornado WarningMOBCovington45 min

Nearby

Tornado Warnings in Florida, 2017Tornado 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.