Alert archive / Alabama / Flash Flood Warnings in 2021
Flash Flood Warning 45, NWS Huntsville, AL
NWS Huntsville, AL issued this flash flood warning at Oct 5, 2021, 6:58 PM CDT for Colbert County, Lauderdale 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 5, 2021, 6:58 PM CDT (23:58 UTC)
- Expired
- Oct 5, 2021, 10:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Colbert County, AL, Lauderdale County, AL
The radar
The Northeast Alabama radar (KHTX), 128 km from the middle of the area, began a volume at 00:00 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 5, 7:05 PM CDT | FLASH FLOOD | 6 Se Killen, AL | WATER WAS BLOCKING THE LANES ALONG RIVER ROAD SOUTHEAST OF KILLEN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 12.0 hours before the alert went out and 165 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
- 44 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1048 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
320
WGUS54 KHUN 052358
FFWHUN
ALC033-077-060200-
/O.NEW.KHUN.FF.W.0045.211005T2358Z-211006T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Huntsville AL
658 PM CDT Tue Oct 5 2021
The National Weather Service in Huntsville has issued a
* Flash Flood Warning for...
East Central Colbert County in northwestern Alabama...
Northeastern Lauderdale County in northwestern Alabama...
* Until 900 PM CDT.
* At 658 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by heavy rainfall and
thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Killen, Leighton, Center Star, Ford City, Green Hill and Northwest
Alabama Regional Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now. Act quickly to protect your life.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3500 8761 3500 8741 3480 8742 3480 8743
3479 8743 3478 8743 3477 8743 3470 8745
3471 8758
FLASH FLOOD...RADAR INDICATED
$$
091 follow-up statement
126
WGUS54 KHUN 060152
FFWHUN
ALC033-077-060300-
/O.EXT.KHUN.FF.W.0045.000000T0000Z-211006T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Huntsville AL
852 PM CDT Tue Oct 5 2021
The National Weather Service in Huntsville has extended the
* Flash Flood Warning for...
East Central Colbert County in northwestern Alabama...
Northeastern Lauderdale County in northwestern Alabama...
* Until 1000 PM CDT.
* At 852 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Killen, Leighton, Center Star, Ford City, Green Hill and Northwest
Alabama Regional Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now. Act quickly to protect your life.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3500 8761 3500 8741 3480 8742 3480 8743
3479 8743 3478 8743 3477 8743 3470 8745
3471 8758
FLASH FLOOD...RADAR INDICATED
$$
MAThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 2:13 PM CDT | Special Weather Statement | HUN | Colbert | 32 min |
| Oct 5, 5:46 PM CDT | Flash Flood Warning | HUN | Lauderdale | 89 min |
Nearby
Flash Flood Warnings in Alabama, 2021Every flash flood warning in 2021
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.