Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 27, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 9, 2011, 9:02 AM CST for Baldwin County, Escambia County, Alabama; Escambia County, Santa Rosa County, Florida. It was in force for 58 min. 10 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
- Mar 9, 2011, 9:02 AM CST (15:02 UTC)
- Expired
- Mar 9, 2011, 10:00 AM CST
- In force
- 58 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Baldwin County, AL, Escambia County, AL, Escambia County, FL, Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 75 km from the middle of the area, began a volume at 15:03 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 |
|---|---|---|---|
| Mar 9, 9:15 AM CST | TORNADO 2 | Silverhill, AL | *** 1 INJ *** SEVERAL HOMES EXPERIECNED SEVERE ROOF DAMAGE. A UTILITY TRAILER WAS CARRIED 50 TO 80 YARDS. A TRUCK THAT WAS BACKING OUT OF THE POST OFFICE PARKING LOT WAS PICKED UP AND FLIPPED INTO THE GRASS AREA IN FRONT OF THE POST OFFICE. THE DRIVER ONLY SUF |
| Mar 9, 9:21 AM CST | TORNADO | 1 S Robertsdale, AL | DEBRIS SPOTTED SWIRLING IN THE AIR BY A MEMBER OF THE FIRE DEPARTMENT. |
| Mar 9, 9:22 AM CST | TORNADO | Walnut Hill, FL | TORNADO SPOTTED NEAR THE CORNER OF MAYHILL ROAD AND HIGHWAY 99. |
| Mar 9, 9:23 AM CST | TORNADO | Walnut Hill, FL | DAMAGE TO AN UNKNOWN NUMBER OF HOMES WERE REPORTED WITH TREES DOWNED ON THE HOMES. CONFIRMED BY EMERGENCY MANAGER. |
| Mar 9, 9:28 AM CST | TORNADO 1 | Mcdavid, FL | ELEVEN HOMES WERE DAMAGED ALONG THE PATH. TWO HOMES WERE DAMAGED BY FALLING TREES. A HOME ON MAIN STREET WAS SHIFTED OFF OF ITS FOUNDATION...WHILE ANOTHER SUFFERED SIGNIFICANT ROOF DAMAGE. |
| Mar 9, 9:30 AM CST | TSTM WND DMG | Flomaton, AL | ONE TREE DOWN ON POWER LINES. |
| Mar 9, 9:30 AM CST | TSTM WND DMG | Mcdavid, FL | ESCAMBIA COUNTY 911 REPORTED FIVE STRUCTURES WITH HEAVY DAMAGE ALONG THE TWO-HUNDRED BLOCK OF MAIN STREET. |
| Mar 9, 9:31 AM CST | TORNADO | Silverhill, AL | BALDWIN COUNTY EMA REPORTING DAMAGE IN THE FORM OF SEVERAL ROOFS BLOWN OFF HOUSES. STREETS AFFECTED INCLUDE FIRST AND FOURTH STREET AS WELL AS HIGHWAY 104 AND FOURTH STREET. |
| Mar 9, 9:40 AM CST | TSTM WND DMG | 1 Wsw Brewton, AL | TREES SNAPPED AND BLOWN OVER ACROSS CAMPUS. |
| Mar 9, 10:01 AM CST | HAIL 1 | 10 Nw Pensacola, FL | HAIL REPORTED ALONG TEN MILE ROAD NORTH OF PENSACOLA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 9, 7:26 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 3.0 hours before the alert went out and 213 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
- 1220 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 456 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 499 m²/s²
- 0-3 km storm-relative helicity
- 571 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 19.4
The text
As transmitted, in the capitals the NWS used until 2016.
844
WUUS54 KMOB 091502
SVRMOB
ALC003-053-FLC033-113-091600-
/O.NEW.KMOB.SV.W.0027.110309T1502Z-110309T1600Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
902 AM CST WED MAR 9 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
THIS INCLUDES THE CITIES OF...WEST PENSACOLA...WARRINGTON...
PENSACOLA...MYRTLE GROVE...MOLINO...GOULDING...GONZALEZ...FERRY
PASS...ENSLEY...CENTURY...BRENT...BELLVIEW...
WESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
THIS INCLUDES THE CITY OF PACE...
SOUTHERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
THIS INCLUDES THE CITIES OF...FLOMATON...EAST BREWTON...BREWTON...
ATMORE...
BALDWIN COUNTY IN SOUTHWEST ALABAMA...
THIS INCLUDES THE CITIES OF...ORANGE BEACH...GULF SHORES...SPANISH
FORT...ROBERTSDALE...POINT CLEAR...LOXLEY...FOLEY...FAIRHOPE...
DAPHNE...BAY MINETTE...
* UNTIL 1000 AM CST
* AT 858 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHWEST OF ATMORE
TO 6 MILES SOUTH OF BAY MINETTE TO 11 MILES SOUTHWEST OF DAUPHIN
ISLAND...AND MOVING EAST AT 50 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
ATMORE AND MOUTH OF WEEKS BAY AROUND 905 AM CST...
SUMMERDALE...SILVERHILL...ROBERTSDALE AND LOXLEY AROUND 910 AM
CST...
OAK GROVE...PALMETTO BEACH...CEDAR GROVE AND OAK AROUND 915 AM
CST...
THIS INCLUDES INTERSTATE 10 IN FLORIDA BETWEEN MILE MARKERS 1 AND 17.
THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 32 AND
66.
THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 41 AND 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE AND BRIEF ISOLATED
TORNADOES. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3023 8804 3027 8795 3029 8776 3042 8792
3057 8791 3067 8797 3112 8761 3114 8676
3064 8713 3056 8714 3058 8717 3047 8714
3034 8726 3039 8717 3037 8717 3033 8719
3032 8720 3029 8755 3022 8779
TIME...MOT...LOC 1500Z 270DEG 42KT 3098 8758 3080 8772
3064 8788 3049 8786 3027 8795 3016 8826
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 7:11 PM CST | Severe Thunderstorm Warning | MOB | Mobile, Washington | 34 min |
| Mar 8, 8:23 PM CST | Severe Thunderstorm Warning | MOB | Washington | 37 min |
| Mar 8, 9:04 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Washington | 41 min |
| Mar 8, 9:44 PM CST | Severe Thunderstorm Warning | MOB | Clarke, Washington, Wilcox | 46 min |
| Mar 9, 1:32 AM CST | Flash Flood Warning | MOB | Choctaw | 118 min |
| Mar 9, 4:20 AM CST | Flash Flood Warning | MOB | Choctaw | 6 hr |
| Mar 9, 4:22 AM CST | Severe Thunderstorm Warning | MOB | Choctaw | 38 min |
| Mar 9, 4:32 AM CST | Tornado Warning | MOB | Choctaw | 33 min |
| Mar 9, 5:07 AM CST | Flash Flood Warning | MOB | Choctaw | 6 hr |
| Mar 9, 5:40 AM CST | Tornado Warning | MOB | Choctaw, Clarke | 33 min |
| Mar 9, 5:51 AM CST | Flash Flood Warning | MOB | Clarke, Washington, Wilcox | 6 hr |
| Mar 9, 6:37 AM CST | Tornado Warning | MOB | Washington | 17 min |
| Mar 9, 7:08 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile, Washington | 52 min |
| Mar 9, 7:26 AM CST | Flash Flood Warning | MOB | Baldwin, Clarke, Mobile, Washington | 6 hr |
| Mar 9, 7:33 AM CST | Flash Flood Warning | MOB | Monroe | 6 hr |
| Mar 9, 7:52 AM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 83 min |
| Mar 9, 7:54 AM CST | Special Marine Warning | MOB | 81 min | |
| Mar 9, 8:01 AM CST | Tornado Warning | MOB | Baldwin, Mobile | 44 min |
| Mar 9, 8:14 AM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 61 min |
| Mar 9, 8:27 AM CST | Tornado Warning | MOB | Baldwin, Mobile | 63 min |
| Mar 9, 8:35 AM CST | Tornado Warning | MOB | Conecuh, Covington, Escambia | 40 min |
| Mar 9, 8:41 AM CST | Flash Flood Warning | MOB | Baldwin, Mobile | 4 hr |
| Mar 9, 8:48 AM CST | Flash Flood Warning | MOB | Conecuh, Escambia | 5 hr |
| Mar 9, 8:50 AM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw | 40 min |
| Mar 9, 9:10 AM CST | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Escambia | 65 min |
| Mar 9, 9:10 AM CST | Tornado Warning | MOB | Baldwin | 50 min |
| Mar 9, 9:16 AM CST | Tornado Warning | MOB | Baldwin | 44 min |
| Mar 9, 9:16 AM CST | Tornado Warning | MOB | Covington | 59 min |
| Mar 9, 9:19 AM CST | Special Marine Warning | MOB | 116 min | |
| Mar 9, 9:23 AM CST | Special Marine Warning | MOB | 97 min | |
| Mar 9, 9:25 AM CST | Flash Flood Warning | MOB | Baldwin | 6 hr |
| Mar 9, 9:26 AM CST | Tornado Warning | MOB | Baldwin, Escambia | 49 min |
| Mar 9, 9:26 AM CST | Tornado Warning | MOB | Covington, Crenshaw | 26 min |
| Mar 9, 9:36 AM CST | Flash Flood Warning | MOB | Conecuh, Covington, Escambia | 114 min |
| Mar 9, 9:40 AM CST | Tornado Warning | MOB | Baldwin | 50 min |
| Mar 9, 9:44 AM CST | Areal Flood Advisory | MOB | Butler, Conecuh, Covington, Crenshaw | 4 hr |
| Mar 9, 9:54 AM CST | Tornado Warning | MOB | Covington | 25 min |
| Mar 9, 10:09 AM CST | Severe Thunderstorm Warning | MOB | Covington | 66 min |
| Mar 9, 10:22 AM CST | Areal Flood Warning | MOB | Choctaw | 5 hr |
| Mar 9, 10:55 AM CST | Special Marine Warning | MOB | 80 min | |
| Mar 9, 11:00 AM CST | Areal Flood Warning | MOB | Choctaw | 5 hr |
| Mar 9, 11:14 AM CST | Tornado Warning | MOB | Baldwin | 61 min |
| Mar 9, 11:30 AM CST | River Flood Warning | MOB | Clarke, Monroe, Wilcox | 10 days |
| Mar 9, 11:54 AM CST | Areal Flood Advisory | MOB | Conecuh, Covington, Escambia | 111 min |
| Mar 9, 11:58 AM CST | Special Marine Warning | MOB | 2 hr | |
| Mar 9, 12:00 PM CST | Areal Flood Warning | MOB | Clarke, Washington, Wilcox | 4 hr |
| Mar 9, 2:02 PM CST | Special Marine Warning | MOB | 58 min | |
| Mar 9, 10:17 AM CST | Flash Flood Warning | MOB | Santa Rosa | 6 hr |
| Mar 9, 10:30 AM CST | Tornado Warning | MOB | Okaloosa, Santa Rosa | 32 min |
| Mar 9, 11:03 AM CST | Flash Flood Warning | MOB | Okaloosa | 5 hr |
| Mar 9, 11:10 AM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 65 min |
| Mar 9, 11:41 AM CST | Tornado Warning | MOB | Okaloosa | 26 min |
| Mar 9, 11:48 AM CST | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 4 hr |
| Mar 9, 12:16 PM CST | Tornado Warning | MOB | Okaloosa, Santa Rosa | 26 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2011Severe Thunderstorm Warnings in Florida, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.