Alert archive / Alabama / Flash Flood Warnings in 2017
Flash Flood Warning 26, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Jun 17, 2017, 1:55 PM CDT for Choctaw County, Clarke County, Washington County, Alabama. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2017, 1:55 PM CDT (18:55 UTC)
- Expired
- Jun 17, 2017, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Choctaw County, AL, Clarke County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 18:57 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
Jackson, MS (KJAN), launched 12:00Z, 6.9 hours before the alert went out and 195 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
- 111 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 418 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.9
The text
As transmitted.
982 WGUS54 KMOB 171855 FFWMOB ALC023-025-129-180100- /O.NEW.KMOB.FF.W.0026.170617T1855Z-170618T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Mobile AL 155 PM CDT SAT JUN 17 2017 The National Weather Service in Mobile has issued a * Flash Flood Warning for... South central Choctaw County in southwestern Alabama... Northeastern Washington County in southwestern Alabama... Northwestern Clarke County in southwestern Alabama... * Until 800 PM CDT Saturday * At 155 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Saint Stephens, Millry, Silas and Coffeeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3186 8804 3156 8793 3150 8830 3178 8839 $$
3 follow-up statements
702 WGUS74 KMOB 172016 FFSMOB Flash Flood Statement National Weather Service Mobile AL 316 PM CDT SAT JUN 17 2017 ALC023-025-129-180100- /O.CON.KMOB.FF.W.0026.000000T0000Z-170618T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw AL-Washington AL-Clarke AL- 316 PM CDT SAT JUN 17 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR SOUTH CENTRAL CHOCTAW...NORTHEASTERN WASHINGTON AND NORTHWESTERN CLARKE COUNTIES... At 314 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is expected to be ongoing. Some locations that will experience flooding include... Saint Stephens, Millry, Silas and Coffeeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3186 8804 3156 8793 3150 8830 3178 8839 $$
654 WGUS74 KMOB 172051 FFSMOB Flash Flood Statement National Weather Service Mobile AL 351 PM CDT SAT JUN 17 2017 ALC023-025-129-180100- /O.CON.KMOB.FF.W.0026.000000T0000Z-170618T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw AL-Washington AL-Clarke AL- 351 PM CDT SAT JUN 17 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR SOUTH CENTRAL CHOCTAW...NORTHEASTERN WASHINGTON AND NORTHWESTERN CLARKE COUNTIES... At 349 PM CDT, Doppler radar indicated thunderstorms have produced heavy rain across the warned area, with up to two inches of rain having already fallen. Flash flooding is imminent if not already occurring. Some locations that will experience flooding include... Saint Stephens, Millry, Silas and Coffeeville. Another round of rain will bring an additional rainfall amount of an inch to the warned area in the next hour. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3186 8804 3156 8793 3150 8830 3178 8839 $$
830 WGUS74 KMOB 172225 FFSMOB Flash Flood Statement National Weather Service Mobile AL 525 PM CDT SAT JUN 17 2017 ALC023-025-129-172234- /O.CAN.KMOB.FF.W.0026.000000T0000Z-170618T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw AL-Washington AL-Clarke AL- 525 PM CDT SAT JUN 17 2017 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL CHOCTAW...NORTHEASTERN WASHINGTON AND NORTHWESTERN CLARKE COUNTIES IS CANCELLED... The heavy rain has ended. Flooding is no longer expected to pose a threat. LAT...LON 3186 8804 3156 8793 3150 8830 3178 8839 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 7:02 PM CDT | Special Weather Statement | MOB | Choctaw | 43 min |
| Jun 16, 7:22 PM CDT | Special Weather Statement | MOB | Choctaw, Washington | 38 min |
| Jun 16, 7:49 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Washington | 22 min |
| Jun 16, 8:15 PM CDT | Special Weather Statement | MOB | Clarke, Washington | 60 min |
| Jun 16, 8:36 PM CDT | Areal Flood Advisory | MOB | Washington | 3 hr |
| Jun 16, 8:44 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Monroe, Wilcox | 46 min |
| Jun 16, 9:15 PM CDT | Special Weather Statement | MOB | Butler, Conecuh, Monroe, Wilcox | 60 min |
| Jun 16, 11:19 PM CDT | Special Marine Warning | MOB | 56 min | |
| Jun 17, 12:11 AM CDT | Special Marine Warning | MOB | 64 min | |
| Jun 17, 12:58 AM CDT | Special Marine Warning | MOB | 62 min | |
| Jun 17, 1:55 AM CDT | Special Marine Warning | MOB | 65 min | |
| Jun 17, 1:11 PM CDT | Areal Flood Advisory | MOB | Mobile, Washington | 3 hr |
| Jun 17, 1:44 PM CDT | Areal Flood Advisory | MOB | Choctaw, Clarke, Washington | 3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.