Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 92, NWS Mobile, AL

March 17, 2016Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2016, 9:28 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 47 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
Mar 17, 2016, 9:28 PM CDT (02:28 UTC)
Expired
Mar 17, 2016, 10:15 PM CDT
In force
47 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 69 km from the middle of the area, began a volume at 02:28 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

TimeReportWhereRemark
Mar 17, 9:32 PM CDTTSTM WND DMG4 Ssw Milton Near Whiti, FLCOUNTY 911 REPORTS LARGE TREE THROUGH THE ROOF OF A BRICK RESIDENCE IN MILTON. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 17, 1:19 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.5 hours before the alert went out and 225 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 00:00Z on 2016-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 00:00Z on 2016-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939587897117Sfc1 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
56 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
965 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

963 
WUUS54 KMOB 180228
SVRMOB
FLC091-113-180315-
/O.NEW.KMOB.SV.W.0092.160318T0228Z-160318T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
928 PM CDT THU MAR 17 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...
  OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1015 PM CDT

* AT 928 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WHITING
  FIELD...OR 8 MILES NORTHEAST OF MILTON...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CRESTVIEW...NICEVILLE...MILTON...VALPARAISO...BAGDAD...BAKER...WHITING
  FIELD...ROEVILLE...WHITFIELD...POINT BAKER AND FORT WALTON
  BEACH...NAVARRE...WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE IMMEDIATELY TO SHELTER INSIDE A STRONG BUILDING. STAY
AWAY FROM WINDOWS.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3046 8643 3050 8645 3050 8644 3051 8642
      3052 8650 3050 8649 3047 8648 3059 8701
      3060 8702 3059 8705 3063 8721 3092 8710
      3089 8640 3045 8639 3045 8640
TIME...MOT...LOC 0228Z 276DEG 38KT 3073 8697 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
620 
WWUS54 KMOB 180251
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
951 PM CDT THU MAR 17 2016

FLC091-113-180315-
/O.CON.KMOB.SV.W.0092.000000T0000Z-160318T0315Z/
SANTA ROSA FL-OKALOOSA FL-
951 PM CDT THU MAR 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR NORTHEASTERN SANTA ROSA AND OKALOOSA COUNTIES...

AT 949 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BAKER...OR 8
MILES SOUTHWEST OF CRESTVIEW...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CRESTVIEW...NICEVILLE...VALPARAISO...BAKER AND FORT WALTON
BEACH...NAVARRE...WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3046 8643 3050 8645 3050 8644 3051 8642
      3052 8650 3050 8649 3047 8648 3059 8701
      3060 8702 3091 8690 3089 8640 3045 8639
      3045 8640
TIME...MOT...LOC 0249Z 276DEG 38KT 3071 8671 

HAIL...1.00IN
WIND...60MPH
 
$$
853 
WWUS54 KMOB 180307 RRA
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1007 PM CDT THU MAR 17 2016

FLC113-180316-
/O.CAN.KMOB.SV.W.0092.000000T0000Z-160318T0315Z/
SANTA ROSA FL-
1007 PM CDT THU MAR 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SANTA ROSA COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3046 8643 3050 8645 3050 8644 3051 8642
      3052 8650 3050 8649 3047 8648 3055 8676
      3090 8669 3089 8640 3045 8639 3045 8640
TIME...MOT...LOC 0306Z 297DEG 37KT 3060 8653 

$$

FLC091-180315-
/O.CON.KMOB.SV.W.0092.000000T0000Z-160318T0315Z/
OKALOOSA FL-
1007 PM CDT THU MAR 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR CENTRAL OKALOOSA COUNTY...

AT 1006 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NICEVILLE...
MOVING SOUTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CRESTVIEW...NICEVILLE...VALPARAISO...BAKER AND FORT WALTON
BEACH...NAVARRE...WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3046 8643 3050 8645 3050 8644 3051 8642
      3052 8650 3050 8649 3047 8648 3055 8676
      3090 8669 3089 8640 3045 8639 3045 8640
TIME...MOT...LOC 0306Z 297DEG 37KT 3060 8653 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 7:55 PM CDTSevere Thunderstorm WarningMOBEscambia65 min
Mar 17, 8:41 PM CDTSevere Thunderstorm WarningMOBEscambia38 min
Mar 17, 8:52 PM CDTSpecial Weather StatementMOBSanta Rosa53 min
Mar 17, 9:30 PM CDTSevere Thunderstorm WarningMOBEscambia37 min
Mar 17, 9:50 PM CDTSevere Thunderstorm WarningMOBEscambia, Okaloosa, Santa Rosa55 min
Mar 17, 10:01 PM CDTRiver Flood WarningMOBOkaloosa4 days
Mar 17, 10:15 PM CDTSevere Thunderstorm WarningMOBOkaloosa30 min
Mar 17, 10:45 PM CDTSpecial Weather StatementMOBOkaloosa15 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016Every severe thunderstorm warning in 2016

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.