Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 71, NWS Mobile, AL

March 17, 2016Escambia County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Mar 17, 2016, 2:47 PM CDT for Escambia County, Florida. It was in force for 16 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
Mar 17, 2016, 2:47 PM CDT (19:47 UTC)
Expired
Mar 17, 2016, 3:03 PM CDT
In force
16 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Escambia County, FL

The radar

The Mobile radar (KMOB), 92 km from the middle of the area, began a volume at 19:50 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
Mar 17, 1:19 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.8 hours before the alert went out and 227 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 2016-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1853 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 2016-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
1853 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
644 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.4

Open this sounding in Storm Lab

The text

As transmitted.

706 
WUUS54 KMOB 171947
SVRMOB
FLC033-172030-
/O.NEW.KMOB.SV.W.0071.160317T1947Z-160317T2030Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 330 PM CDT

* AT 246 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING UP TO HALF DOLLAR SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MYRTLE
  GROVE...AND MOVING NORTHEAST AT 20 TO 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PENSACOLA...GONZALEZ...FERRY PASS...PENSACOLA INTERNATIONAL AIRPORT...
  MYRTLE GROVE...GOULDING...ENSLEY...BRENT...BELLVIEW AND WEST PENSACOLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 3033 8744 3034 8742 3036 8744 3040 8743
      3044 8734 3048 8743 3064 8731 3049 8715
      3042 8718 3037 8732 3037 8730 3036 8730
      3037 8726 3032 8729 3034 8730 3032 8732
      3032 8738 3030 8740
TIME...MOT...LOC 1946Z 216DEG 19KT 3040 8734 

$$
1 follow-up statement
402 
WWUS54 KMOB 172003
SVSMOB

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

FLC033-172013-
/O.CAN.KMOB.SV.W.0071.000000T0000Z-160317T2030Z/
ESCAMBIA FL-
303 PM CDT THU MAR 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ESCAMBIA COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR
NORTHWESTERN FLORIDA.

LAT...LON 3033 8744 3034 8742 3036 8744 3040 8743
      3044 8734 3048 8743 3064 8731 3049 8715
      3042 8718 3037 8732 3037 8730 3036 8730
      3037 8726 3032 8729 3034 8730 3032 8732
      3032 8738 3030 8740
TIME...MOT...LOC 2002Z 216DEG 19KT 3047 8728 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 11:05 AM CDTSpecial Weather StatementMOBSanta Rosa55 min
Mar 17, 2:42 PM CDTSpecial Weather StatementMOBEscambia48 min
Mar 17, 4:09 PM CDTSevere Thunderstorm WarningMOBEscambia36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.