Alert archive / Florida / Flash Flood Warnings in 2017
Flash Flood Warning 70, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 30, 2017, 7:54 AM CDT for Santa Rosa County, Florida. 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
- Aug 30, 2017, 7:54 AM CDT (12:54 UTC)
- Expired
- Aug 30, 2017, 11:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 103 km from the middle of the area, began a volume at 12:55 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 |
|---|---|---|---|
| Aug 30, 8:20 AM CDT | FLASH FLOOD | Milton, FL | SEVERAL ROADS CLOSED DUE TO FLOODING. REPORTS VIA SOCIAL MEDIA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.9 hours before the alert went out and 259 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
- 334 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
655 WGUS54 KMOB 301254 FFWMOB FLC113-301600- /O.NEW.KMOB.FF.W.0070.170830T1254Z-170830T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Mobile AL 754 AM CDT WED AUG 30 2017 The National Weather Service in Mobile has issued a * Flash Flood Warning for... Central Santa Rosa County in northwestern Florida... * Until 1100 AM CDT * At 753 AM 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... Milton, Bagdad, Floridatown, Point Baker, Pea Ridge and Roeville. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. 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, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. && LAT...LON 3087 8682 3048 8698 3053 8717 3091 8711 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 8:03 PM CDT | River Flood Warning | MOB | Escambia | 63 hr |
| Aug 29, 8:12 PM CDT | River Flood Warning | MOB | Okaloosa | 3 days |
| Aug 30, 4:15 AM CDT | Wind Advisory | MOB | Escambia, Santa Rosa | 38 hr |
| Aug 30, 4:18 AM CDT | Severe Thunderstorm Warning | MOB | Escambia | 42 min |
| Aug 30, 5:31 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Aug 30, 5:49 AM CDT | Special Weather Statement | MOB | Escambia | 41 min |
| Aug 30, 6:35 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Aug 30, 6:36 AM CDT | Special Weather Statement | MOB | Santa Rosa | 39 min |
| Aug 30, 6:59 AM CDT | Special Weather Statement | MOB | Escambia | 46 min |
| Aug 30, 7:07 AM CDT | Flash Flood Warning | MOB | Escambia | 3 hr |
| Aug 30, 7:07 AM CDT | High Surf Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 35 hr |
| Aug 30, 7:36 AM CDT | Special Weather Statement | MOB | Santa Rosa | 39 min |
| Aug 30, 7:41 AM CDT | Flash Flood Warning | MOB | Escambia | 3 hr |
| Aug 30, 8:30 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Aug 30, 9:55 AM CDT | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 3 hr |
| Aug 30, 10:08 AM CDT | Flash Flood Warning | MOB | Escambia, Santa Rosa | 112 min |
| Aug 30, 11:02 AM CDT | Areal Flood Advisory | MOB | Santa Rosa | 3 hr |
| Aug 30, 11:27 AM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 3 days |
| Aug 30, 12:52 PM CDT | River Flood Warning | MOB | Escambia | 63 hr |
| Aug 30, 1:17 PM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 48 hr |
| Aug 30, 3:12 PM CDT | Special Weather Statement | MOB | Escambia | 48 min |
| Aug 30, 4:11 PM CDT | Special Weather Statement | MOB | Escambia | 49 min |
| Aug 30, 4:20 PM CDT | Tornado Warning | MOB | Escambia | 25 min |
Nearby
Flash Flood Warnings in Florida, 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.