Alert archive / Alabama / Flash Flood Watches in 2010
Flash Flood Watch 5, NWS Mobile, AL
NWS Mobile, AL issued this flash flood watch at May 2, 2010, 3:39 AM CDT for 10 counties in Alabama; 5 counties in Mississippi. It took effect at May 2, 2010, 7:00 PM CDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- May 2, 2010, 3:39 AM CDT (08:39 UTC)
- In effect from
- May 2, 2010, 7:00 PM CDT
- Expired
- May 3, 2010, 4:00 PM CDT
- In force
- 21 hr
- Issued by
- NWS Mobile, AL
- Flood severity
- None
Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 96 km from the middle of the area, began a volume at 08:37 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 00:00Z, 8.7 hours before the alert went out and 215 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
- 748 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 3.7
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at May 1, 4:06 PM CDT, 11 hours 33 minutes earlier.
Area forecast discussion, May 1, 4:06 PM CDT, 11 hours 33 minutes before
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</html>Hazardous weather outlook, May 1, 2:30 PM CDT, 13 hours 9 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 |
|---|---|---|---|---|
| May 2, 10:24 AM CDT | Wind Advisory | MOB | Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more | 9 hr |
| May 2, 11:06 AM CDT | River Flood Warning | MOB | Choctaw, Clarke, Washington | 7 days |
| May 2, 11:06 AM CDT | River Flood Warning | MOB | Choctaw, Clarke, Washington | 7 days |
Nearby
Flash Flood Watches in Alabama, 2010Flash Flood Watches in Mississippi, 2010Flash Flood Watches in Florida, 2010Every flash flood watch in 2010
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.