Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 33, NWS Mobile, AL

June 21, 2017Okaloosa County, Santa Rosa County, Florida; Escambia County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 21, 2017, 2:44 PM CDT for Okaloosa County, Santa Rosa County, Florida; Escambia County, Alabama. It was in force for 30 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, 2:44 PM CDT (19:44 UTC)
Expired
Jun 21, 2017, 3:14 PM CDT
In force
30 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Escambia County, AL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 93 km from the middle of the area, began a volume at 19:43 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.7 hours before the alert went out and 245 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, Tallahassee Rgnl, FL at 12:00Z on 2017-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 571 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, Tallahassee Rgnl, FL at 12:00Z on 2017-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 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
571 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
740 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

894 
WFUS54 KMOB 211944
TORMOB
ALC053-FLC091-113-212030-
/O.NEW.KMOB.TO.W.0033.170621T1944Z-170621T2030Z/

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

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Southeastern Escambia County in south central Alabama...
  Northwestern Okaloosa County in northwestern Florida...
  Northeastern Santa Rosa County in northwestern Florida...

* Until 330 PM CDT
    
* At 244 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Baker, or 14 miles northwest of
  Crestview, moving north at 25 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
  southeastern Escambia...northwestern Okaloosa and northeastern
  Santa Rosa Counties.

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 3084 8671 3084 8681 3113 8694 3117 8670
TIME...MOT...LOC 1944Z 167DEG 23KT 3088 8677 

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

$$
2 follow-up statements
851 
WWUS54 KMOB 212005
SVSMOB

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

FLC091-113-212015-
/O.CAN.KMOB.TO.W.0033.000000T0000Z-170621T2030Z/
Okaloosa FL-Santa Rosa FL-
305 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR NORTHWESTERN OKALOOSA AND NORTHEASTERN
SANTA ROSA COUNTIES 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
Alabama.

LAT...LON 3100 8675 3100 8685 3113 8694 3117 8670
TIME...MOT...LOC 2005Z 163DEG 21KT 3101 8680 

$$

ALC053-212030-
/O.CON.KMOB.TO.W.0033.000000T0000Z-170621T2030Z/
Escambia AL-
305 PM CDT WED JUN 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
SOUTHEASTERN ESCAMBIA COUNTY...
    
At 305 PM CDT, a severe thunderstorm capable of producing a tornado
was located 15 miles east of Riverview, or 17 miles east of Brewton,
moving north at 25 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
southeastern Escambia 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 3100 8675 3100 8685 3113 8694 3117 8670
TIME...MOT...LOC 2005Z 163DEG 21KT 3101 8680 

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

$$
712 
WWUS54 KMOB 212014 RRA
SVSMOB

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

ALC053-212024-
/O.CAN.KMOB.TO.W.0033.000000T0000Z-170621T2030Z/
Escambia AL-
314 PM CDT WED JUN 21 2017

...THE TORNADO WARNING FOR SOUTHEASTERN ESCAMBIA COUNTY IS
CANCELLED...
                
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 cancelled.

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

LAT...LON 3100 8675 3100 8685 3113 8694 3117 8670
TIME...MOT...LOC 2013Z 167DEG 23KT 3107 8682 

$$

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, 2:46 PM CDTTornado WarningMOBEscambia59 min
Jun 21, 3:53 PM CDTTornado WarningMOBEscambia52 min
Jun 21, 4:17 PM CDTTornado WarningMOBEscambia43 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.