Alert archive / Florida / Tornado Warnings in 2017
Tornado Warning 42, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at Jun 21, 2017, 9:21 PM CDT for Okaloosa County, Florida. It was in force for 22 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, 9:21 PM CDT (02:21 UTC)
- Expired
- Jun 21, 2017, 9:43 PM CDT
- In force
- 22 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 52 km from the middle of the area, began a volume at 02:25 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 6:45 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.4 hours before the alert went out and 208 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.
- Mixed-layer CAPE
- 1293 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 783 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
841
WFUS54 KMOB 220221
TORMOB
FLC091-220300-
/O.NEW.KMOB.TO.W.0042.170622T0221Z-170622T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
921 PM CDT WED JUN 21 2017
The National Weather Service in Mobile has issued a
* Tornado Warning for...
East central Okaloosa County in northwestern Florida...
* Until 1000 PM CDT
* At 920 PM CDT, a severe thunderstorm capable of producing a
tornado was located 9 miles southeast of Crestview, moving north
at 20 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
east central Okaloosa 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 3065 8640 3065 8648 3084 8650 3085 8639
TIME...MOT...LOC 0220Z 180DEG 14KT 3069 8644
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$2 follow-up statements
790
WWUS54 KMOB 220229
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
929 PM CDT WED JUN 21 2017
FLC091-220300-
/O.CON.KMOB.TO.W.0042.000000T0000Z-170622T0300Z/
Okaloosa FL-
929 PM CDT WED JUN 21 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR EAST
CENTRAL OKALOOSA COUNTY...
At 928 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Crestview, moving north at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
east central Okaloosa County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3071 8640 3071 8648 3084 8650 3085 8639
TIME...MOT...LOC 0228Z 176DEG 29KT 3076 8645
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$644
WWUS54 KMOB 220243
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
943 PM CDT WED JUN 21 2017
FLC091-220253-
/O.CAN.KMOB.TO.W.0042.000000T0000Z-170622T0300Z/
Okaloosa FL-
943 PM CDT WED JUN 21 2017
...THE TORNADO WARNING FOR EAST CENTRAL OKALOOSA 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 300 AM CDT for northwestern
Florida.
LAT...LON 3071 8640 3071 8648 3084 8650 3085 8639
TIME...MOT...LOC 0241Z 180DEG 14KT 3082 8645
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:03 PM CDT | Special Weather Statement | MOB | Okaloosa, Santa Rosa | 57 min |
| Jun 21, 7:37 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 53 min |
| Jun 21, 7:41 PM CDT | Severe Thunderstorm Warning | MOB | Santa Rosa | 39 min |
| Jun 21, 9:10 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 35 min |
| Jun 22, 1:21 AM CDT | Special Weather Statement | MOB | Escambia, Santa Rosa | 54 min |
| Jun 22, 2:24 AM CDT | Flash Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 6 hr |
| Jun 22, 3:38 AM CDT | Special Weather Statement | MOB | Okaloosa | 37 min |
| Jun 22, 10:51 AM CDT | Flash Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 6 hr |
| Jun 22, 11:07 AM CDT | Special Weather Statement | MOB | Escambia | 38 min |
| Jun 22, 4:00 PM CDT | Special Weather Statement | MOB | Escambia | 45 min |
Nearby
Tornado Warnings in Florida, 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.