Thunderstorms moved across southwest Alabama and produced small hail and gusty winds.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MOB wrote it up.
Thunderstorms moved across southwest Alabama and produced small hail and gusty winds.
The local office's own words before the first event, 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 the first event at Sep 22, 2:39 PM CST, 19 minutes earlier.
Area Forecast Discussion National Weather Service Mobile AL 339 PM CDT Fri Sep 22 2017 .NEAR TERM /Now Through Saturday/...An upper trough visible in water vapor satellite imagery currently extends roughly from post-tropical cyclone Jose off the New England coast southwest into the northeastern Gulf. Ongoing scattered thunderstorms over the southeastern states are being supported by strong daytime heating, weakened static stability across the region, and upper level divergence associated with a jet streak rotating around the western side of the trough. Despite the dynamic support aloft, storms should remain largely driven by heating and are thus expected to gradually dissipate after sunset this evening. Until then, coverage will increase into the late afternoon hours as storms drift from northeast to southwest, with frequent cloud-to-ground lightning and brief heavy downpours being the primary threats in the stronger cells. Skies then clear out and light patchy fog will be possible late tonight through sunrise Saturday. Low temps will range from the upper 60's to around 70 inland and the low to mid 70's along the immediate coast. The aforementioned upper trough is bisected by a narrow ridge building ahead of a very deep longwave trough over the western CONUS. The northern half of the former trough, including the remnants of Jose, are caught up and swept east over the Atlantic by an embedded shortwave in the mid-latitude jet (currently situated over southern Canada). The southern half is pinched off, forming a cutoff low which then begins to push south over the southeastern U.S. late tonight into Saturday morning. Our local area remains on the "dry" side of this upper low Saturday afternoon and evening as it retrogrades over southeastern Alabama and the Florida panhandle, with only a slight chance for some isolated showers and storms during that time. High temps reach the low 90's over southeast Mississippi and far southwest Alabama, where less cloud cover will allow for plenty of daytime heating. Over south central Alabama and the western Florida panhandle, expect highs to stay a couple degrees cooler (upper 80's to around 90) due to greater cloud cover associated with the retrograding upper low. Look for convective activity to increase over our area later in the weekend as the low continues to drift to our west. /49 .SHORT TERM /Saturday night Through Monday night/...Period begins with the aforementioned FL Panhandle mid-level upper low moving westward. Clouds and the chance of rain both increase Saturday night and into Sunday as the feature moves further west to be located over coastal MS by dark on Sunday. On the east side of the upper system is where our greatest rain chances will be. So, Sunday expect a fairly good coverage of showers with scattered thunderstorms from late morning on (and spreading in from the southeast). Some of the most intense storms may produce localized heavy rainfall given both higher absolute values of low level moisture and moisture flux convergence (especially south of Highway 84 and closer to the coast and also across interior SE MS)convergence. Relatively higher rain chances continue into Monday afternoon as regional static stabilities remain low due to the presence of that feature. Shower and thunderstorm coverage decreases Monday Night as the upper low moved further westward. Temperatures will average a few degrees cooler than normal on Sunday afternoon, but it will be muggy. The rip current risk may climb on Sunday, as the day begins with an increasing easterly wind. It becomes more southeasterly as the upper low moves further west. Eventually slightly longer period swell will begin and there is a pronounced spring tide early next week. The risk will remain elevated into early next week. The Surf Zone Forecast will likely be updated later today for Sunday. /23 JMM .LONG TERM /Tuesday Through Friday/...On Tuesday, the upper low fills and is advected back to the east, away from the region, in the deep-layer mean flow as the pronounced deep-layer U.S. Western Trough advances slightly eastward into the Plains. Scattered showers and thunderstorms linger, but coverage should be a little less each day this period. For the remainder of the period, back to drier conditions as ridge builds over the Gulf of Mexico through Friday. Will have to watch exactly how the western U.S. trough advances, forecast could change slightly for Friday. /23 JMM && .MARINE...Winds and seas build slightly over the weekend as the local pressure gradient tightens between a building ridge to the north and Hurricane Maria east of the Bahamas. Expect east to southeast winds of 10 to 15 knots with gusts to around 20 knots Saturday through Sunday night. Seas build to around 2 to 3 feet over the weekend. The gradient relaxes again heading into next week, with easterly winds around 5 to 10 knots and seas returning to around 1 to 2 feet Monday through midweek. Showers and thunderstorms will remain possible through the forecast period, with the greatest coverage currently expected Saturday night through Sunday. /49 && .PRELIMINARY POINT TEMPS/POPS... Mobile 70 89 70 85 / 10 20 20 60 Pensacola 73 88 72 83 / 10 20 30 50 Destin 74 88 75 84 / 10 20 30 50 Evergreen 69 88 68 86 / 10 20 10 40 Waynesboro 68 90 67 86 / 20 20 10 50 Camden 69 88 68 87 / 20 20 10 40 Crestview 70 88 70 85 / 10 20 20 50 && .MOB WATCHES/WARNINGS/ADVISORIES... AL...None. FL...None. MS...None. GM...None. && This product is also available on the web at: http://weather.gov/mob
Hazardous Weather Outlook National Weather Service Mobile AL 454 AM CDT Fri Sep 22 2017 ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-231000- 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- 454 AM CDT Fri Sep 22 2017 This Hazardous Weather Outlook is for portions of south central Alabama...southwest Alabama...northwest Florida and southeast Mississippi. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Activation of SkyWarn Severe Storm Spotter networks is not expected through Thursday. GMZ630>635-650-655-670-675-231000- 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- 454 AM CDT Fri Sep 22 2017 This Hazardous Weather Outlook is for portions of the coastal waters of Alabama and northwest Florida. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time.
Special Weather Statement
National Weather Service Mobile AL
346 PM CDT FRI SEP 22 2017
ALZ261-263-222130-
Mobile Central AL-Mobile Inland AL-
346 PM CDT FRI SEP 22 2017
...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...WEST
CENTRAL MOBILE COUNTY UNTIL 430 PM CDT...
At 344 PM CDT, strong thunderstorms are anticipated to develop over
west Mobile, or 5 miles west of Midtown Mobile, moving southwest at
10 mph.
Winds in excess of 40 mph will be possible with this storm. Cloud to
ground lightning will also increase in frequency. Locally heavy
downpours are possible.
Locations impacted include...
Midtown Mobile, Downtown Mobile, Prichard, Tillmans Corner, Semmes,
I65 And I165, I10 And I65 and Mobile Regional Airport.
LAT...LON 3067 8841 3068 8841 3085 8818 3068 8800
3052 8827
TIME...MOT...LOC 2044Z 030DEG 10KT 3067 8821The Mobile radar (KMOB), 1 km away, was scanning. The volume nearest the first event began at 20:58 UTC.
1 thunderstorm wind. Local standard time, as filed.
Winds estimated at 60 damaged power poles near the Mobile Regional Airport. Dime to penny size hail was also observed at the NWS office.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2017Every state in 2017This day in weather historyWarnings in Alabama, September 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 721120.