Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 170, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 2, 2011, 12:59 PM CDT for Mobile County, Alabama. It was in force for 31 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
- Jul 2, 2011, 12:59 PM CDT (17:59 UTC)
- Expired
- Jul 2, 2011, 1:30 PM CDT
- In force
- 31 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Mobile County, AL
The radar
The Mobile radar (KMOB), 1 km from the middle of the area, began a volume at 18:02 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.0 hours before the alert went out and 148 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
- 2612 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
653 WUUS54 KMOB 021759 SVRMOB ALC097-021830- /O.NEW.KMOB.SV.W.0170.110702T1759Z-110702T1830Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 1259 PM CDT SAT JUL 2 2011 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA... THIS INCLUDES THE CITY OF PRICHARD... * UNTIL 130 PM CDT * AT 1258 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTHWEST OF PRICHARD...OR NEAR FOREST HILL. THIS STORM WAS NEARLY STATIONARY. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEMMES...I65 AND US 45 AND I65 AND I165 THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 6 AND 11. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOBILE REGIONAL AIRPORT RECENTLY REPORTED A WIND GUST TO 61 MPH. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY FROM WINDOWS! && LAT...LON 3057 8823 3068 8841 3086 8824 3077 8808 TIME...MOT...LOC 1759Z 213DEG 2KT 3073 8822 $$
1 follow-up statement
666 WWUS54 KMOB 021826 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 126 PM CDT SAT JUL 2 2011 ALC097-021836- /O.EXP.KMOB.SV.W.0170.000000T0000Z-110702T1830Z/ MOBILE AL- 126 PM CDT SAT JUL 2 2011 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MOBILE COUNTY WILL EXPIRE AT 130 PM CDT... THE STORM THAT PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS. LAT...LON 3057 8823 3068 8841 3086 8824 3077 8808 TIME...MOT...LOC 1826Z 213DEG 2KT 3074 8821 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 1:03 PM CDT | Special Marine Warning | MOB | 42 min | |
| Jul 2, 1:12 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 26 min |
| Jul 2, 1:55 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 35 min |
| Jul 2, 2:28 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 31 min |
| Jul 2, 2:37 PM CDT | Areal Flood Advisory | MOB | Baldwin | 53 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2011Every severe thunderstorm warning in 2011
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.