Alert archive / Alabama / Special Weather Statements in 2017
Special Weather Statement, NWS Mobile, AL
NWS Mobile, AL issued this special weather statement at Aug 23, 2017, 9:18 PM CDT for Washington County, Alabama. It was in force for 42 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
- Aug 23, 2017, 9:18 PM CDT (02:18 UTC)
- Expired
- Aug 23, 2017, 10:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Mobile, AL
County Washington County, AL
The radar
The Mobile radar (KMOB), 81 km from the middle of the area, began a volume at 02:18 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 00:00Z, 2.3 hours before the alert went out and 208 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
- 2718 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 3 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 Aug 23, 6:38 PM CDT, 2 hours 40 minutes earlier.
Area forecast discussion, Aug 23, 6:38 PM CDT, 2 hours 40 minutes before
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</html>Hazardous weather outlook, Aug 23, 4:33 AM CDT, 16 hours 45 minutes before
Hazardous Weather Outlook National Weather Service Mobile AL 433 AM CDT Wed Aug 23 2017 ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-241200- 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- 433 AM CDT Wed Aug 23 2017 This Hazardous Weather Outlook is for portions of south central Alabama...southwest Alabama...northwest Florida and southeast Mississippi. .DAY ONE...Today and Tonight Highest heat index values to range from 101 to 105 degrees today. Storms forecast to develop and become mostly scattered in coverage through the day today. Some of the storms potentially strong. Main impacts from storms will be brief strong wind gusts, frequent lightning and locally heavy rain that may cause instances of nuisance type flooding in some areas that experience poor drainage. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday An increase in rip current hazards looks to set up Friday and into the weekend, as a potential tropical system lifts up across the western Gulf late in the week, bringing long period swell into the surf zone. Elevated rip current hazards may linger into the first half of next week. There is at least some potential for a heavy rain and or severe weather event to occur over the forecast area during the Monday into Tuesday timeframe. This will be highly dependent on eventual placement of a weak frontal boundary near the area and how the surface low from Harvey tracks. Stay tuned. .SPOTTER INFORMATION STATEMENT... Activation of SkyWarn Severe Storm Spotter networks is not expected through Tuesday. GMZ630>635-650-655-670-675-241200- 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- 433 AM CDT Wed Aug 23 2017 This Hazardous Weather Outlook is for portions of the coastal waters of Alabama and northwest Florida. .DAY ONE...Today and Tonight Winds, waves and seas locally higher in and near isolated to scattered storms. Frequent lightning activity and visibility reducing heavy rainfall will also be likely with the stronger storms. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Winds, waves and seas locally higher in and near storms during the outlook. Frequent lightning activity and visibility reducing heavy rainfall will also be likely with the stronger storms. A potential tropical system, to lift northwest over the western Gulf at the close of the week, brings an increase in long period swell up across the coastal waters Friday and into the weekend. Increased swell may continue into the first of next week, depending on eventual track and strength of western Gulf system.
In the hours before
Special weather statement, Aug 23, 4:19 PM CDT, 4 hours 59 minutes before
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</html>Local storm report, Aug 23, 4:20 PM CDT, 4 hours 58 minutes before
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</html>Special weather statement, Aug 23, 5:06 PM CDT, 4 hours 12 minutes before
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</html>Special weather statement, Aug 23, 5:36 PM CDT, 3 hours 42 minutes before
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</html>Special weather statement, Aug 23, 6:21 PM CDT, 2 hours 57 minutes before
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</html>Special weather statement, Aug 23, 6:26 PM CDT, 2 hours 52 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 7:22 PM CDT | Special Weather Statement | MOB | Conecuh | 38 min |
| Aug 23, 8:01 PM CDT | Areal Flood Advisory | MOB | Conecuh | 3 hr |
| Aug 23, 8:40 PM CDT | Special Weather Statement | MOB | Clarke | 50 min |
| Aug 23, 8:54 PM CDT | Areal Flood Advisory | MOB | Clarke, Washington | 3 hr |
| Aug 24, 2:59 PM CDT | Special Weather Statement | MOB | Escambia | 31 min |
| Aug 23, 7:03 PM CDT | Special Weather Statement | MOB | Wayne | 42 min |
| Aug 23, 7:37 PM CDT | Areal Flood Advisory | MOB | Wayne | 3 hr |
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.