Alert archive / Alabama / Flash Flood Warnings in 2017
Flash Flood Warning 89, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Oct 22, 2017, 1:59 PM CDT for Mobile County, Alabama. It was in force for 3 hr. 1 report 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
- Oct 22, 2017, 1:59 PM CDT (18:59 UTC)
- Expired
- Oct 22, 2017, 4:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Mobile County, AL
The radar
The Mobile radar (KMOB), 23 km from the middle of the area, began a volume at 18:59 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 |
|---|---|---|---|
| Oct 22, 2:47 PM CDT | FLASH FLOOD | Ssw Grand Bay, AL | MEDIA REPORTS FAST MOVING WATER ACROSS POTTER TRACT RD JUST SOUTH OF SAEGER RD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 7.0 hours before the alert went out and 261 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
- 72 J/kg
- Mixed-layer CIN
- -332 J/kg
- Mixed-layer LCL
- 1526 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
506 WGUS54 KMOB 221859 FFWMOB ALC097-222130- /O.NEW.KMOB.FF.W.0089.171022T1859Z-171022T2130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Mobile AL 159 PM CDT SUN OCT 22 2017 The National Weather Service in Mobile has issued a * Flash Flood Warning for... Southwestern Mobile County in southwestern Alabama... * Until 430 PM CDT * At 157 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Three to four inches of rain have already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Grand Bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. Stay away or be swept away. River banks and culverts can become unstable and unsafe. && LAT...LON 3056 8840 3060 8825 3041 8829 3036 8840 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 22, 11:28 AM CDT | Special Weather Statement | MOB | Mobile | 47 min |
| Oct 22, 12:19 PM CDT | Flash Flood Warning | MOB | Mobile | 2 hr |
| Oct 22, 12:47 PM CDT | Areal Flood Advisory | MOB | Mobile | 118 min |
| Oct 22, 1:00 PM CDT | Tornado Warning | MOB | Baldwin | 2 min |
| Oct 22, 1:01 PM CDT | Tornado Warning | MOB | Baldwin | 29 min |
| Oct 22, 1:36 PM CDT | Tornado Warning | MOB | Baldwin | 24 min |
| Oct 22, 1:39 PM CDT | Tornado Warning | MOB | Baldwin | 34 min |
| Oct 22, 2:05 PM CDT | Special Marine Warning | MOB | 55 min | |
| Oct 22, 2:11 PM CDT | Tornado Warning | MOB | Baldwin | 49 min |
| Oct 22, 2:39 PM CDT | Tornado Warning | MOB | Baldwin | 36 min |
| Oct 22, 2:41 PM CDT | Tornado Warning | MOB | Baldwin | 23 min |
| Oct 22, 3:01 PM CDT | Special Marine Warning | MOB | 44 min | |
| Oct 22, 3:22 PM CDT | Areal Flood Warning | MOB | Mobile | 3 hr |
| Oct 22, 3:35 PM CDT | Areal Flood Advisory | MOB | Baldwin, Escambia | 3 hr |
| Oct 22, 3:38 PM CDT | Areal Flood Advisory | MOB | Baldwin, Mobile | 3 hr |
| Oct 22, 3:52 PM CDT | Special Marine Warning | MOB | 23 min | |
| Oct 22, 3:58 PM CDT | Tornado Warning | MOB | Baldwin | 47 min |
| Oct 22, 4:25 PM CDT | Areal Flood Warning | MOB | Baldwin, Mobile | 6 hr |
| Oct 22, 4:34 PM CDT | Special Marine Warning | MOB | 56 min | |
| Oct 22, 5:06 PM CDT | Areal Flood Advisory | MOB | Mobile | 114 min |
| Oct 22, 5:15 PM CDT | Flash Flood Warning | MOB | Baldwin, Mobile | 6 hr |
| Oct 22, 5:29 PM CDT | Special Marine Warning | MOB | 61 min | |
| Oct 22, 5:31 PM CDT | Areal Flood Advisory | MOB | Butler, Conecuh, Escambia | 3 hr |
| Oct 22, 5:47 PM CDT | River Flood Warning | MOB | Baldwin | 60 hr |
| Oct 22, 5:48 PM CDT | River Flood Warning | MOB | Baldwin | 31 hr |
Nearby
Flash Flood Warnings in Alabama, 2017Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.