Alert archive / Alabama / Flash Flood Warnings in 2013
Flash Flood Warning 36, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Jul 20, 2013, 4:43 PM CDT for Clarke 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
- Jul 20, 2013, 4:43 PM CDT (21:43 UTC)
- Expired
- Jul 20, 2013, 10:45 PM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Clarke County, AL
The radar
The Mobile radar (KMOB), 116 km from the middle of the area, began a volume at 21:46 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, 9.7 hours before the alert went out and 197 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
- 1133 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
473 WGUS54 KMOB 202143 FFWMOB ALC025-210345- /O.NEW.KMOB.FF.W.0036.130720T2143Z-130721T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 443 PM CDT SAT JUL 20 2013 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA... * UNTIL 1045 PM CDT * AT 440 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS OCCURRED OVER THE PAST HOUR WITH ADDITIONAL AMOUNTS OF 1 TO 2 INCHES OVER THE NEXT HOUR. THIS WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA. * LOCATIONS IMPACTED INCLUDE... RURAL CENTRAL CLARKE COUNTY LAT...LON 3175 8779 3157 8798 3162 8803 3175 8797 $$
1 follow-up statement
699 WGUS74 KMOB 210044 FFSMOB FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 744 PM CDT SAT JUL 20 2013 ALC025-210054- /O.CAN.KMOB.FF.W.0036.000000T0000Z-130721T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARKE AL- 744 PM CDT SAT JUL 20 2013 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL CLARKE COUNTY... AT 742 PM CDT...THE HEAVY RAINFALL THAT PROMPTED THE WARNING FOR CENTRAL CLARKE COUNTY HAS ENDED...THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED. HOWEVER...PONDING OF WATER MAY STILL BE ENCOUNTERED. LAT...LON 3175 8779 3157 8798 3162 8803 3175 8797 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 4:59 AM CDT | Special Marine Warning | MOB | 31 min | |
| Jul 20, 5:12 AM CDT | Special Marine Warning | MOB | 33 min | |
| Jul 20, 11:59 AM CDT | Rip Current Statement | MOB | 9 hr | |
| Jul 20, 3:09 PM CDT | Areal Flood Advisory | MOB | Clarke | 2 hr |
| Jul 20, 3:33 PM CDT | Flash Flood Warning | MOB | Clarke | 117 min |
Nearby
Flash Flood Warnings in Alabama, 2013Every flash flood warning in 2013
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.