Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 49, NWS Mobile, AL

June 10, 2018Clarke County, Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 10, 2018, 5:24 PM CDT for Clarke County, Washington County, Alabama. It was in force for 45 min. 2 reports 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: Jun 10, 2018, 5:24 PM CDT (22:24 UTC)
Expired: Jun 10, 2018, 6:09 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Clarke County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 96 km from the middle of the area, began a volume at 22:24 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

Time	Report	Where	Remark
Jun 10, 5:32 PM CDT	HAIL 0.5	Jackson, AL	DIME SIZE HAIL REPORTED IN JACKSON.
Jun 10, 5:40 PM CDT	TSTM WND DMG	3 Nne Jackson, AL	TREES DOWN ON THE DECK OF A HOME ON BEVERLY DRIVE. A STORAGE BUILDING AT THE ANIMAL SHELTER IN JACKSON WAS ALSO BLOWN OVER.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.4 hours before the alert went out and 216 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: 178 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 1184 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: -16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

421 
WUUS54 KMOB 102224
SVRMOB
ALC025-129-102330-
/O.NEW.KMOB.SV.W.0049.180610T2224Z-180610T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
524 PM CDT SUN JUN 10 2018

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  East central Washington County in southwestern Alabama...
  Central Clarke County in southwestern Alabama...

* Until 630 PM CDT.

* At 524 PM CDT, a severe thunderstorm was located near Jackson,
  moving north at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

* Locations impacted include...  Jackson and Leroy. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 3139 8788 3142 8800 3164 8799 3161 8777
TIME...MOT...LOC 2224Z 192DEG 14KT 3146 8792 

HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

813 
WWUS54 KMOB 102309
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
609 PM CDT SUN JUN 10 2018

ALC025-129-102319-
/O.CAN.KMOB.SV.W.0049.000000T0000Z-180610T2330Z/
Washington AL-Clarke AL-
609 PM CDT SUN JUN 10 2018

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WASHINGTON AND
CENTRAL CLARKE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 3139 8788 3142 8800 3164 8799 3161 8777
TIME...MOT...LOC 2308Z 192DEG 14KT 3163 8788 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 6:53 AM CDT	Special Weather Statement	MOB	Mobile	52 min
Jun 10, 2:58 PM CDT	Special Marine Warning	MOB		62 min
Jun 10, 3:44 PM CDT	Special Marine Warning	MOB		61 min
Jun 10, 3:55 PM CDT	Areal Flood Advisory	MOB	Conecuh	2 hr
Jun 10, 4:17 PM CDT	Special Weather Statement	MOB	Monroe, Wilcox	28 min
Jun 10, 5:03 PM CDT	Special Weather Statement	MOB	Monroe	42 min
Jun 10, 5:05 PM CDT	Special Weather Statement	MOB	Escambia	40 min
Jun 10, 5:15 PM CDT	Special Weather Statement	MOB	Washington	45 min
Jun 10, 5:32 PM CDT	Special Weather Statement	MOB	Monroe	43 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2018 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.