Alert archive / Alabama / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 162, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 12, 2017, 11:59 AM CDT for Mobile County, Washington County, Alabama. It was in force for 61 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
- May 12, 2017, 11:59 AM CDT (16:59 UTC)
- Expired
- May 12, 2017, 1:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Mobile County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 47 km from the middle of the area, began a volume at 17:00 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 |
|---|---|---|---|
| May 12, 10:35 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 5.0 hours before the alert went out and 167 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
- 704 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 478 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
796
WUUS54 KMOB 121659
SVRMOB
ALC097-129-121800-
/O.NEW.KMOB.SV.W.0162.170512T1659Z-170512T1800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1159 AM CDT FRI MAY 12 2017
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Northwestern Mobile County in southwestern Alabama...
Southeastern Washington County in southwestern Alabama...
* Until 100 PM CDT
* At 1159 AM CDT, a severe thunderstorm was located over Gulfcrest,
or 7 miles south of Citronelle, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Citronelle, Chunchula, Gulfcrest, Mount Vernon, Calvert and Movico.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3094 8842 3095 8843 3133 8812 3120 8795
3116 8794 3116 8797 3115 8797 3115 8794
3112 8795 3109 8797 3108 8797 3083 8827
TIME...MOT...LOC 1659Z 221DEG 20KT 3099 8826
HAIL...<.75IN
WIND...60MPH
$$1 follow-up statement
870
WWUS54 KMOB 121708
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
1208 PM CDT FRI MAY 12 2017
ALC097-129-121800-
/O.CON.KMOB.SV.W.0162.000000T0000Z-170512T1800Z/
Mobile AL-Washington AL-
1208 PM CDT FRI MAY 12 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR NORTHWESTERN MOBILE AND SOUTHEASTERN WASHINGTON COUNTIES...
At 1208 PM CDT, a severe thunderstorm was located over Gulfcrest, or
near Citronelle, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Citronelle, Gulfcrest, Mount Vernon, Calvert and Movico.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3095 8825 3102 8837 3133 8812 3120 8795
3116 8794 3116 8797 3115 8797 3115 8794
3112 8795 3109 8797 3108 8797 3092 8816
TIME...MOT...LOC 1708Z 221DEG 20KT 3103 8822
HAIL...<.75IN
WIND...60MPH
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 12:34 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 56 min |
| May 12, 12:41 PM CDT | Special Marine Warning | MOB | 2 hr | |
| May 12, 12:46 PM CDT | Special Weather Statement | MOB | Conecuh, Escambia, Monroe | 59 min |
| May 12, 1:05 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 40 min |
| May 12, 1:11 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 27 min |
| May 12, 1:16 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 44 min |
| May 12, 1:28 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 47 min |
| May 12, 1:43 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 47 min |
| May 12, 2:01 PM CDT | Special Marine Warning | MOB | 59 min | |
| May 12, 2:06 PM CDT | Special Weather Statement | MOB | Covington | 54 min |
| May 12, 2:15 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 60 min |
| May 12, 2:37 PM CDT | Special Marine Warning | MOB | 53 min | |
| May 12, 2:43 PM CDT | Special Marine Warning | MOB | 62 min | |
| May 12, 2:47 PM CDT | Areal Flood Advisory | MOB | Baldwin | 3 hr |
| May 12, 2:49 PM CDT | Severe Thunderstorm Warning | MOB | Covington | 41 min |
| May 12, 2:55 PM CDT | Special Marine Warning | MOB | 65 min | |
| May 12, 3:00 PM CDT | Severe Thunderstorm Warning | MOB | Covington | 60 min |
| May 12, 3:11 PM CDT | Special Marine Warning | MOB | 2 hr | |
| May 12, 3:46 PM CDT | Special Marine Warning | MOB | 119 min | |
| May 12, 5:45 PM CDT | Special Marine Warning | MOB | 90 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2017Every severe thunderstorm warning 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.