Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Mobile, AL

April 22, 2018Butler County, Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Apr 22, 2018, 8:12 PM CDT for Butler County, Conecuh County, Escambia County, Alabama. It was in force for 48 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: Apr 22, 2018, 8:12 PM CDT (01:12 UTC)
Expired: Apr 22, 2018, 9:00 PM CDT
In force: 48 min
Issued by: NWS Mobile, AL

Counties Butler County, AL, Conecuh County, AL, Escambia County, AL

The radar

The Ft Rucker radar (KEOX), 130 km from the middle of the area, began a volume at 01:16 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.2 hours before the alert went out and 176 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 184 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 463 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 545 m²/s²
0-3 km storm-relative helicity: 700 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this special weather statement went out at Apr 22, 8:11 PM CDT, 1 minute earlier.

Area forecast discussion, Apr 22, 8:11 PM CDT, 1 minute before

Area Forecast Discussion...UPDATED
National Weather Service Mobile AL
811 PM CDT Sun Apr 22 2018

.DISCUSSION...See updated information for land and marine areas below.

&&

.LAND AND MARINE UPDATE...Have cancelled the remaining land and
marine areas from TOR WATCH #56. Updated package to reflect going
out attm.

/16

&&

.PREV DISCUSSION... /issued 642 PM CDT Sun Apr 22 2018/

DISCUSSION...See updated information for land areas below.

UPDATE...Planning on cancelling TO.A 56 for SC Al counties along
with Santa Rosa FL and adjacent Escambia Bay at 7 PM CDT. Surface
winds continue to veer. Remainder of TO.A 56 will remain in
effect for about another hour for Okaloosa Co, Choctawhatchee bay
and out to 60 nmi. Will coordinate this with WFO TAE next hour (or
so). /23 JMM

PREV DISCUSSION... /issued 619 PM CDT Sun Apr 22 2018/

DISCUSSION...Updated for latest aviation discussion below.

AVIATION...
00Z issuance...A front approaching the Mississippi/Alabama state
line as of this writing will cross area TAF sites this evening.
With cold advection behind the front and drier air well behind am
expecting drops in CIGs/VISBYs to low end MVFR/IFR levels later
this evening and lasting to sunrise. Winds at this point are
remaining strong enough to preclude LIFR levels, but any drop in
speeds will allow for LIFR levels.

After sunrise, with drier air moving in, and a bit strong winds,
VFR CIGs/VISBYs will return by noontime Monday.

/16

PREV DISCUSSION... /issued 539 PM CDT Sun Apr 22 2018/

DISCUSSION...See updated information for land areas below.

UPDATE...Very quick update. Despite some recent veering of the sfc
winds, which has acted to decrease vertical wind shear values SW
of the warm front, the vertical wind shear and thermodynamic
instability values on the latest mesoanalyses are still
sufficiently elevated enough to warrant the formation of long-
lived mesocyclones (some of which may produce isolated
tornadoes). Therefore, am in no hurry to clear any portion of
Tornado Watch 56 which is currently in effect over eastern portion
of our areas. /23 JMM

PREV DISCUSSION... /issued 358 PM CDT Sun Apr 22 2018/

This will be an abbreviated AFD due to ongoing active
weather...

NEAR TERM /Now Through Monday/...In the very near term, forecast
area is bisected by surface warm front that lies in a NW-SE
fashion across our area. The feature is lifting to the NE with
time. A few hours ago mesocyclones, some of which may likely produced
tornadoes, exploded over the NE Sector of our area (and over the
interior NW FL Panhandle). Currently the ambient environment
remains favorable for more mesocyclone and isolated tornado
formation the next several hours along and just SE of the sfc
warm front. EffSrHel is maxed out in the 300-500 m^2 s-^2 and
there are some 1000-1500 J/kg SBCAPES south of the warm front
(MLCAPES generally range under 1000 J/kg). This will continue
through around 9 PM CDT and a Tornado Watch is in effect. By
midnight, an upstream cold front will have moved through the
western portion of our area. By 3 AM, sfc winds will have shifted
to a W-NW direction behind the cold front. There will be periods
of patchy drizzle and fog in the sfc low wrap-around moisture
after the more significant and deeper precipitation departs the NE
zones during the mid evening. Give the orientation of the upper
system as it lifts to the NE on Monday, it will likley be mostly
cloudy on Monday north of Highway 84 with possible drizzle
lingering into the late morning. Temperatures will range below
normal.

Look for us to start trimming back the western edge of Tornado
Watch 56 over the next few hours. /23 JMM

SHORT TERM /Monday night Through Wednesday night/...A N-S cloud
gradient remains Monday night through Tuesday as another upper
level vorticity maximum passes to the N. Yet another system
approaches Wed night, and clouds and rain chances will be on the
increase from the NW. /23 JMM

LONG TERM /Thursday Through Sunday/...No changes to previous
package. Afternoon high and morning low temperatures remain below
seasonal values through the period. /23 JMM and /10 GJM

MARINE...A cold front moves through the coastal waters this
evening and very early Monday morning. Showers and thunderstorms end
from the west. Winds shift to the west and then northwest around
daybreak. West to northwest flow is then expected to gradually weaken
in the wake of the front through midweek.

A Tornado Watch remains in effect out to 60 nm east of Pensacola
through 9 PM CDT. Also a Small Craft Exercise Caution remains in
effect through most of the evening and may cancelled with the
1030 PM CDT update. /23 JMM

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...High Rip Current Risk through Monday evening for ALZ265-266.

FL...High Rip Current Risk through Monday evening for FLZ202-204-206.

MS...None.
GM...None.
&&

This product is also available on the web at:
http://weather.gov/mob

Hazardous weather outlook, Apr 22, 5:58 AM CDT, 14 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Mobile AL
558 AM CDT Sun Apr 22 2018

ALZ265-266-FLZ202-204-206-231100-
Mobile Coastal-Baldwin Coastal-Escambia Coastal-Santa Rosa Coastal-
Okaloosa Coastal-
558 AM CDT Sun Apr 22 2018

...HIGH RIP CURRENT RISK IN EFFECT THROUGH MONDAY...

This Hazardous Weather Outlook is for southwest Alabama and
northwest Florida.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Showers and thunderstorms are expected to become numerous across the
region today as a cold front approaches from the west. There is a
Marginal Threat for severe weather across the entire area today, but
the greatest risk for a few severe storms with damaging wind gusts and
perhaps an isolated brief/weak tornado will be over interior southwest
Alabama and inland portions of the western Florida panhandle from
late morning, through the afternoon and into the early evening hours.
Any heavy rainfall threat appears minimal due to the relatively fast
west to east motion of the front across the area today and tonight.
Stay tuned for further updates on the developing situation.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

There is a continued High Risk for rip currents along the Gulf
beaches of Alabama and Northwest Florida Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed Sunday.

ALZ051>060-261>264-FLZ201-203-205-MSZ067-075-076-078-079-231100-
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland-
Wayne-Perry-Greene-Stone-George-
558 AM CDT Sun Apr 22 2018

This Hazardous Weather Outlook is for south central Alabama,
southwest Alabama, northwest Florida and southeast Mississippi.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Showers and thunderstorms are expected to become numerous across the
region today as a cold front approaches from the west. There is a
Marginal Threat for severe weather across the entire area today, but
the greatest risk for a few severe storms with damaging wind gusts and
perhaps an isolated brief/weak tornado will be over interior southwest
Alabama and inland portions of the western Florida panhandle from
late morning, through the afternoon and into the early evening hours.
Any heavy rainfall threat appears minimal due to the relatively fast
west to east motion of the front across the area today and tonight.
Stay tuned for further updates on the developing situation.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

There is a continued High Risk for rip currents along the Gulf
beaches of Alabama and Northwest Florida Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed Sunday.

GMZ630>636-650-655-670-675-231100-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola FL
out 20 NM-Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
558 AM CDT Sun Apr 22 2018

This Hazardous Weather Outlook is for the coastal waters of Alabama
and northwest Florida.

.DAY ONE...Today and Tonight.

Hazardous conditions for small craft can be expected today and
tonight over much of the marine area. Small craft should exercise
caution.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous conditions for small craft will be possible into the early
and middle part of the week.

In the hours before

Local storm report, Apr 22, 7:10 PM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
710 PM CDT SUN APR 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0428 PM     FUNNEL CLOUD     2 NE Eglin Afb          30.48N 86.53W
04/22/2018                   OKALOOSA           FL   ASOS

            KVPS ASOS REPORTS A FUNNEL CLOUD NORTH OF EGLIN AFB.

&&

DJOHNSON

Local storm report, Apr 22, 7:24 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
724 PM CDT SUN APR 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0149 PM     TSTM WND DMG     10 ESE Brewton          31.05N 86.92W
04/22/2018                   ESCAMBIA           AL   BROADCAST MEDIA

            METAL ROOF BLOWN OFF A HOME AND TREE BRANCHES DOWN IN THE
            BETHEL COMMUNITY SOUTHEAST OF BREWTON, AL

&&

DJOHNSON

Local storm report, Apr 22, 7:27 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
727 PM CDT SUN APR 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0149 PM     FUNNEL CLOUD     10 ESE Brewton          31.05N 86.92W
04/22/2018                   ESCAMBIA           AL   PUBLIC

            PUBLIC REPORT OF A FUNNEL CLOUD IN THE BETHEL COMMUNITY
            SOUTHEAST OF BREWTON TIME ESTIMATED BY RADAR.

&&

DJOHNSON

Local storm report, Apr 22, 7:34 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
734 PM CDT SUN APR 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0421 PM     TSTM WND DMG     Ocean City              30.44N 86.61W
04/22/2018                   Okaloosa           FL   PUBLIC

            IMAGE OF A LARGE TREE SNAPPED AND NUMEROUS BRANCHES DOWN
            NEAR A HOME OCEAN CITY.

&&

DJOHNSON

Local storm report, Apr 22, 7:42 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
742 PM CDT SUN APR 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0336 PM     TSTM WND DMG     Elberta                 30.41N 87.60W
04/22/2018                   Baldwin            AL   NWS EMPLOYEE

            TREES AND BRANCHES DOWN ALONG HWY 87 NORTH OF HWY 98 NEAR
            ELBERTA. TIME ESTIMATED FROM RADAR.

&&

DJOHNSON

Special weather statement, Apr 22, 8:12 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
812 PM CDT SUN APR 22 2018

ALZ054>057-059-060-230200-
Wilcox AL-Conecuh AL-Monroe AL-Butler AL-Escambia AL-Covington AL-
812 PM CDT SUN APR 22 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...BUTLER...NORTHEASTERN MONROE...EASTERN ESCAMBIA...
SOUTHEASTERN WILCOX...CONECUH AND NORTHWESTERN COVINGTON COUNTIES
UNTIL 900 PM CDT...

At 811 PM CDT, the strong thunderstorms were located along a line
extending from 9 miles southeast of Pine Apple to 9 miles west of
Georgiana to near I65 And US 84 to 5 miles north of Brewton to 4
miles northwest of Pollard, and moving east at 30 mph.

Gusty winds between 30 and 40 mph and brief heavy rain will be
possible with these storms.

Locations impacted include...
Greenville, Brewton, Evergreen, East Brewton, Georgiana, McKenzie,
Castleberry, Red Level, Riverview and I65 And US 84.

LAT...LON 3196 8647 3106 8670 3105 8727 3159 8703
      3194 8697
TIME...MOT...LOC 0111Z 247DEG 24KT 3178 8688 3159 8688 3139 8697 3118
8709 3109 8720

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 9:12 PM CDT	River Flood Warning	MOB	Choctaw, Clarke, Washington	7 days

Nearby

Special Weather Statements in Alabama, 2018 Every special weather statement in 2018

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.