Alert archive / Alabama / Special Weather Statements in 2017
Special Weather Statement, NWS Mobile, AL
NWS Mobile, AL issued this special weather statement at Apr 30, 2017, 4:24 PM CDT for Escambia County, Alabama. It was in force for 51 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 30, 2017, 4:24 PM CDT (21:24 UTC)
- Expired
- Apr 30, 2017, 5:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Mobile, AL
County Escambia County, AL
The radar
The Mobile radar (KMOB), 106 km from the middle of the area, began a volume at 21:26 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 12:00Z, 9.4 hours before the alert went out and 223 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
- 53 J/kg
- Mixed-layer CIN
- -333 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</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 30, 4:14 PM CDT, 10 minutes earlier.
Area forecast discussion, Apr 30, 4:14 PM CDT, 10 minutes before
Area Forecast Discussion
National Weather Service Mobile AL
414 PM CDT Sun Apr 30 2017
.NEAR TERM /Now Through Monday/...A large, vigorous upper level
storm system centered over the southern High Plains maintains a
zone of deep layer ascent, within an anomalously high/deeply moist
airmass (pwats ~1.8 to 2.0 inches) and sufficient instability
over the central Gulf coast. Bulk of coldest cloud tops and
enhanced lightning activity was positioned over southwest AL to
just off the southeast LA coast. Frontal zone over the Lower MS
River Valley has slowed a bit, which has caused deep convection
over the western zones to slow its eastward progression. Considering
this, organized storms will be efficient in heavy rain rates
which presents some concerns for flooding. Forecasters will
maintain an elevated threat of flooding generally west of I-65.
The convective line makes eastward progress toward the I-65
corridor into early this evening. Strong low level wind profiles
and curved hodographs maintain both a damaging wind/isolated
tornado wind threat over the central portions of the forecast
area this evening. Front progged to move east over the central
portions of forecast area by midnight. At same time, the severe
weather risk may begin to decrease/become more marginal after
midnight as stronger low level flow shifts east of the region, but
still may have to monitor for a few strong storms thru the night
over the eastern half of local area. Along the coast, a multitude
of problems continue into tonight. Strong onshore flow and long
period swell into the surf zone supports high surf and 5 to 8 foot
breakers which can produce localized beach erosion. Coastal
flooding remains possible with nearly 3 feet above mean sea level.
A high risk of dangerous to potentially deadly rip currents also
remains a threat. Some minor adjustments made to wind advisory
over the interior given latest wind forecast.
Frontal passage Monday morning brings a wind shift, much drier
conditions and a reduction in rain chances in its wake from west
to east. /10
.SHORT TERM /Monday night Through Wednesday night/...Following
the passage of Monday's front, a quiet weather pattern looks to
set up Monday night thru Tuesday night as high pressure slips
east. With plenty of sunshine expected on Tuesday along with drier
air, daytime highs look to climb to the mid 80s for most inland
areas and lower 80s closer to the coast. Next storm system dives
southeast out of the Plains on Wednesday, bringing next chance of
showers and storms to the area. A chance for some excessive
rainfall is possible beginning Wednesday night. Daytime highs on
Wednesday similar to Tuesday. Coolest overnight lows in the lower
to mid 50s Tuesday night generally along and north of I-10.
Overnight lows moderate into the lower to mid 60s interior to
lower 70s coast by Wednesday night.
.LONG TERM /Thursday Through Sunday/...Unsettled weather looks to
continue into Thursday before next strong cold front sweeps moves
across the region, bringing in a much drier and cooler airmass
across the forecast area into the weekend. Daytime highs Thursday
thru Saturday in the lower to mid 70s come in some 10 to 15
degrees below seasonal normals. May see overnight lows dipping
down into the mid to upper 40s north of the beaches Saturday
morning.
&&
.MARINE...Showers and storms spread east over the coastal waters
tonight as a cold front approaches from the west. Winds, waves
and seas will be locally higher in the strongest storms.
Visibility reducing heavy rains possible as well. Strong onshore
winds this evening maintain high sea states. Cold frontal passage
Monday morning brings wind shift with rains ending in its wake.
Seas show a subsiding trend the first half of the week. Onshore
flow sets up and increases by the middle of the week as next front
approaches from the west. Seas trend higher as a result. Chances
of showers and storms to increase. Strong offshore flow returns
on Thursday in the wake of the frontal passage. /10
&&
.PRELIMINARY POINT TEMPS/POPS...
Mobile 61 82 56 87 / 100 20 0 0
Pensacola 65 80 60 84 / 80 50 0 0
Destin 69 77 64 80 / 80 80 0 0
Evergreen 62 83 52 86 / 100 50 0 0
Waynesboro 57 81 52 85 / 100 10 0 0
Camden 61 82 53 85 / 100 20 0 0
Crestview 66 83 53 87 / 90 80 0 0
&&
.MOB WATCHES/WARNINGS/ADVISORIES...
AL...Wind Advisory until 9 PM CDT this evening for ALZ051>054.
Wind Advisory until midnight CDT tonight for ALZ055>060-261>266.
Coastal Flood Advisory until 4 AM CDT Monday for ALZ263>266.
High Rip Current Risk through late tonight for ALZ265-266.
High Surf Advisory until 4 AM CDT Monday for ALZ265-266.
FL...Wind Advisory until midnight CDT tonight for FLZ201>206.
Coastal Flood Advisory until 4 AM CDT Monday for FLZ202-204-206.
High Rip Current Risk through late tonight for FLZ202-204-206.
High Surf Advisory until 4 AM CDT Monday for FLZ202-204-206.
MS...Wind Advisory until 9 PM CDT this evening for MSZ067-075-076-078-
079.
GM...Small Craft Advisory until 7 AM CDT Monday for GMZ650-655-670-
675.
Small Craft Advisory until 4 AM CDT Monday for GMZ630>635.
&&
This product is also available on the web at:
http://weather.gov/mobHazardous weather outlook, Apr 30, 5:59 AM CDT, 10 hours 25 minutes before
Hazardous Weather Outlook National Weather Service Mobile AL 559 AM CDT Sun Apr 30 2017 ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-011100- Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central- Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland- Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal- Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George- 559 AM CDT Sun Apr 30 2017 This Hazardous Weather Outlook is for portions of south central Alabama...southwest Alabama...northwest Florida and southeast Mississippi. .DAY ONE...Today and Tonight Severe thunderstorms will be possible across much of the region today and tonight, with a potential for multiple rounds of storms to impact the area starting around noon or early this afternoon and continuing through late tonight. Damaging winds, large hail and a few tornadoes will all be possible. Heavy rainfall will be possible today and tonight as multiple rounds of storms move across the region, which could result in flooding of low lying and poor drainage areas. Isolated instances of flash flooding may also occur, particularly west of Interstate 65 where it currently appears there is a better potential for heavier rainfall through tonight. Wind speeds of 25 to 30 mph, with frequent gusts between 30 and 40 mph, are expected outside of thunderstorms through this evening. A Wind Advisory remains in effect for the entire area today through this evening. High surf and a high risk of rip currents will continue along area beaches through late tonight. Minor coastal flooding is possible today, particularly during the time of high tide this afternoon. .DAYS TWO THROUGH SEVEN...Monday through Saturday Another approaching storm system could bring another round of showers and thunderstorms, a few of which could be strong with locally heavy rainfall late Wednesday into Thursday. .SPOTTER INFORMATION STATEMENT... Storm spotter activation may be requested today and tonight. GMZ630>635-650-655-670-675-011100- Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound- Perdido Bay-Pensacola Bay System-Choctawhatchee Bay- Coastal waters from Pensacola FL to Pascagoula MS out 20 NM- Coastal waters from Destin to Pensacola FL out 20 NM- Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM- Waters from Destin to Pensacola FL from 20 to 60 NM- 559 AM CDT Sun Apr 30 2017 This Hazardous Weather Outlook is for portions of the coastal waters of Alabama and northwest Florida. .DAY ONE...Today and Tonight Small craft advisories remain in effect through tonight as strong southerly flow and increased seas continue in advance of an approaching cold front. Severe thunderstorms will be possible this afternoon through early Monday as a storm system moves across the region. .DAYS TWO THROUGH SEVEN...Monday through Saturday Showers and thunderstorms are expected to return late Wednesday and Thursday as another storm system moves across the area. Increasing onshore flow could bring hazardous conditions for small craft again late Wednesday into Thursday.
In the hours before
Special weather statement, Apr 30, 12:02 PM CDT, 4 hours 22 minutes before
Special Weather Statement
National Weather Service Mobile AL
1202 PM CDT SUN APR 30 2017
ALZ051-301800-
Choctaw AL-
1202 PM CDT SUN APR 30 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...CHOCTAW COUNTY UNTIL 100 PM CDT...
At 1202 PM CDT, the strong thunderstorms were located along a line
extending from 6 miles southeast of York to 9 miles southwest of
Crandall, and moving northeast at 55 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Butler, Lisman, Pennington and Toxey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Additional statements will be issued as conditions warrant.
&&
A tornado watch remains in effect until 700 PM CDT for southwestern
Alabama.
LAT...LON 3231 8793 3228 8793 3230 8794 3230 8798
3228 8802 3218 8801 3214 8804 3211 8805
3209 8805 3207 8810 3205 8812 3201 8812
3198 8807 3196 8807 3197 8809 3195 8812
3193 8810 3186 8847 3231 8842
TIME...MOT...LOC 1702Z 237DEG 48KT 3242 8822 3186 8861
ButtsLocal storm report, Apr 30, 2:39 PM CDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
239 PM CDT SUN APR 30 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 PM COASTAL FLOOD 3 ESE DOWNTOWN MOBILE 30.68N 87.99W
04/30/2017 BALDWIN AL NWS EMPLOYEE
MINOR FLOODING OCCURRING ON THE HIGHWAY 90 CAUSEWAY AT
THE I-10 ENTRANCE AND EXIT RAMPS.
0230 PM COASTAL FLOOD 2 NE HOLLINGERS ISLAND 30.57N 88.09W
04/30/2017 MOBILE AL LAW ENFORCEMENT
FLOODING REPORTED ON THE SOUTHBOUND LANES OF DAUPHIN
ISLAND PARKWAY JUST NORTH OF THE DOG RIVER BRIDGE. THE
RIGHT LANE IS IMPASSABLE.
&&
JFBSpecial weather statement, Apr 30, 2:50 PM CDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Mobile AL
250 PM CDT SUN APR 30 2017
ALZ052>055-302030-
Clarke AL-Wilcox AL-Monroe AL-Washington AL-
250 PM CDT SUN APR 30 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...NORTHWESTERN MONROE...SOUTHEASTERN WASHINGTON...EASTERN
CLARKE AND WILCOX COUNTIES UNTIL 330 PM CDT...
At 250 PM CDT, the strong thunderstorms were located along a line
extending from 6 miles southeast of Consul to 6 miles southeast of
Fulton to 6 miles northwest of McIntosh,and moving east at 25 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Jackson, Camden, Wagarville, Leroy, Whatley, Pine Hill, Vredenburgh,
McIntosh, Yellow Bluff and Dannelly Reservoir.
A tornado watch remains in effect until 700 PM CDT for south central
and southwestern Alabama.
LAT...LON 3220 8736 3220 8733 3214 8728 3214 8725
3212 8726 3208 8719 3205 8718 3205 8707
3177 8717 3130 8771 3130 8779 3128 8778
3128 8782 3124 8784 3124 8827 3172 8772
3213 8757 3213 8752 3225 8752 3227 8744
TIME...MOT...LOC 1950Z 263DEG 22KT 3219 8748 3173 8764 3130 8814Special weather statement, Apr 30, 3:03 PM CDT, 1 hour 21 minutes before
Special Weather Statement
National Weather Service Mobile AL
303 PM CDT SUN APR 30 2017
ALZ052-053-261-263-MSZ076-079-302100-
Clarke AL-Washington AL-Mobile Central AL-Mobile Inland AL-Greene MS-
George MS-
303 PM CDT SUN APR 30 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...MOBILE...SOUTHEASTERN WASHINGTON...SOUTHERN CLARKE...
EASTERN GEORGE AND SOUTHEASTERN GREENE COUNTIES UNTIL 400 PM CDT...
At 302 PM CDT, strong thunderstorms were located along a line
extending from 8 miles northeast of Lucedale to 10 miles north of
Hurley to Ocean Springs, and moving northeast at 40 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Saraland, Satsuma, Citronelle, Lucedale, Creola, Chunchula,
Gulfcrest, Deer Park, Axis, Calvert, Mount Vernon, Semmes, Tanner
Williams, Mobile Regional Airport, Wilmer, I65 And AL 158 and Movico.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Additional statements will be issued as conditions warrant.
&&
A tornado watch remains in effect until 700 PM CDT for southwestern
Alabama.
LAT...LON 3074 8841 3074 8869 3104 8853 3125 8829
3126 8784 3109 8788 3117 8789 3109 8797
3108 8797 3109 8791 3106 8794 3105 8793
3105 8794 3104 8792 3063 8820 3054 8840
TIME...MOT...LOC 2002Z 240DEG 33KT 3100 8849 3081 8854 3042 8881
ButtsSpecial weather statement, Apr 30, 3:56 PM CDT, 28 minutes before
Special Weather Statement
National Weather Service Mobile AL
356 PM CDT SUN APR 30 2017
ALZ052-053-055-056-059-261>264-MSZ079-302200-
Clarke AL-Baldwin Central AL-Baldwin Inland AL-Monroe AL-Conecuh AL-
Escambia AL-Washington AL-Mobile Central AL-Mobile Inland AL-
George MS-
356 PM CDT SUN APR 30 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...SOUTHWESTERN MONROE...MOBILE...NORTHWESTERN BALDWIN...
SOUTHEASTERN WASHINGTON...SOUTHEASTERN CLARKE...WESTERN ESCAMBIA...
WESTERN CONECUH AND SOUTHEASTERN GEORGE COUNTIES UNTIL 500 PM CDT...
At 355 PM CDT, the strong thunderstorms were located along a line
extending from 7 miles east of McIntosh to near Mount Vernon to near
Helena, and moving east at 35 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Midtown Mobile, Downtown Mobile, Prichard, Tillmans Corner, Saraland,
Bay Minette, Monroeville, Theodore, Chickasaw, Satsuma, Spanish Fort,
northeastern Grand Bay, Citronelle, Creola, Frisco City, Chunchula,
Stockton, McCullough, Gulfcrest and Axis.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Additional statements will be issued as conditions warrant.
&&
A tornado watch remains in effect until 700 PM CDT for south central
and southwestern Alabama.
LAT...LON 3074 8841 3074 8846 3116 8830 3137 8809
3163 8725 3126 8736 3060 8796 3048 8840
TIME...MOT...LOC 2055Z 248DEG 30KT 3129 8790 3107 8797 3052 8846
ButtsSpecial weather statement, Apr 30, 4:24 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Mobile AL 424 PM CDT SUN APR 30 2017 ALZ055-056-059-302215- Monroe AL-Conecuh AL-Escambia AL- 424 PM CDT SUN APR 30 2017 ...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...SOUTH CENTRAL MONROE...WESTERN ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES UNTIL 515 PM CDT... At 423 PM CDT, the strong thunderstorm was located near Interstate 65 and AL 21, or 9 miles north of Atmore, moving northeast at 30 mph. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... McCullough, Excel, Repton, I65 And AL 113 and I65 And AL 21. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. Additional statements will be issued as conditions warrant. && A tornado watch remains in effect until 700 PM CDT for south central Alabama. LAT...LON 3105 8736 3114 8756 3149 8736 3142 8705 TIME...MOT...LOC 2123Z 205DEG 27KT 3115 8744 Butts
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 12:02 PM CDT | Special Weather Statement | MOB | Choctaw | 58 min |
| Apr 30, 12:46 PM CDT | Areal Flood Advisory | MOB | Choctaw, Washington | 3 hr |
| Apr 30, 1:02 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 58 min |
| Apr 30, 1:06 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington | 39 min |
| Apr 30, 1:46 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington | 59 min |
| Apr 30, 2:00 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Mobile, Washington | 60 min |
| Apr 30, 2:50 PM CDT | Special Weather Statement | MOB | Wilcox | 40 min |
| Apr 30, 3:03 PM CDT | Special Weather Statement | MOB | Mobile | 57 min |
| Apr 30, 3:14 PM CDT | Areal Flood Advisory | MOB | Clarke, Mobile, Washington, Wilcox | 3 hr |
| Apr 30, 3:56 PM CDT | Special Weather Statement | MOB | Mobile, Monroe | 64 min |
| Apr 30, 4:01 PM CDT | Special Marine Warning | MOB | 89 min | |
| Apr 30, 4:09 PM CDT | Areal Flood Advisory | MOB | Mobile | 3 hr |
| Apr 30, 4:43 PM CDT | Special Weather Statement | MOB | Baldwin, Mobile | 62 min |
| Apr 30, 5:23 PM CDT | Special Marine Warning | MOB | 52 min | |
| Apr 30, 5:38 PM CDT | Special Weather Statement | MOB | Baldwin | 67 min |
| Apr 30, 5:48 PM CDT | Special Weather Statement | MOB | Butler | 42 min |
| Apr 30, 5:49 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 41 min |
| Apr 30, 6:10 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 35 min |
| Apr 30, 6:15 PM CDT | Special Marine Warning | MOB | 90 min | |
| Apr 30, 6:17 PM CDT | Flash Flood Watch | MOB | Baldwin, Butler, Clarke, Conecuh, Escambia, Mobile and 3 more | 9 hr |
| Apr 30, 6:23 PM CDT | Areal Flood Advisory | MOB | Baldwin | 3 hr |
| Apr 30, 6:37 PM CDT | Special Weather Statement | MOB | Conecuh, Escambia | 53 min |
| Apr 30, 11:20 AM CDT | Special Weather Statement | MOB | George, Greene, Perry, Stone, Wayne | 55 min |
| Apr 30, 11:34 AM CDT | Severe Thunderstorm Warning | MOB | Greene, Perry, Wayne | 41 min |
| Apr 30, 12:16 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Perry, Stone | 44 min |
Nearby
Special Weather Statements in Alabama, 2017Every special weather statement 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.