Alert archive / Florida / Special Weather Statements in 2009
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at May 20, 2009, 11:13 AM EDT for Duval County, Florida. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 20, 2009, 11:13 AM EDT (15:13 UTC)
- Expired
- May 20, 2009, 11:45 AM EDT
- In force
- 32 min
- Issued by
- NWS Jacksonville, FL
County Duval County, FL
The radar
The Jacksonville radar (KJAX), 23 km from the middle of the area, began a volume at 15:13 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
Jacksonville, FL (KJAX), launched 12:00Z, 3.2 hours before the alert went out and 23 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
- 10 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 853 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this special weather statement went out at May 19, 3:12 PM EDT, 20 hours 1 minute earlier.
Area forecast discussion, May 19, 3:12 PM EDT, 20 hours 1 minute before
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</html>Hazardous weather outlook, May 19, 6:36 PM EDT, 16 hours 37 minutes before
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<div class="status" id="status">Temporary Notice</div>
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 8:05 AM EDT | Areal Flood Advisory | JAX | Clay, Duval, Saint Johns | 3 hr |
| May 20, 11:08 AM EDT | River Flood Warning | JAX | Clay | 69 hr |
| May 20, 11:44 AM EDT | Areal Flood Advisory | JAX | Flagler | 91 min |
| May 20, 11:54 AM EDT | Special Weather Statement | JAX | Flagler | 66 min |
| May 20, 12:01 PM EDT | Areal Flood Warning | JAX | Flagler | 27 hr |
| May 20, 12:24 PM EDT | Areal Flood Advisory | JAX | Duval, Nassau | 111 min |
| May 20, 1:49 PM EDT | Areal Flood Advisory | JAX | Duval, Saint Johns | 116 min |
| May 20, 1:50 PM EDT | Areal Flood Advisory | JAX | Nassau | 85 min |
| May 20, 1:54 PM EDT | Areal Flood Advisory | JAX | Clay, Flagler, Putnam, Saint Johns | 2 hr |
| May 20, 2:40 PM EDT | Areal Flood Warning | JAX | Duval, Saint Johns | 26 hr |
| May 20, 2:54 PM EDT | Lake Wind Advisory | JAX | Flagler, Nassau | 28 hr |
| May 20, 3:08 PM EDT | Areal Flood Warning | JAX | Putnam | 24 hr |
| May 20, 3:36 PM EDT | Areal Flood Advisory | JAX | Nassau | 114 min |
| May 20, 4:19 PM EDT | Areal Flood Warning | JAX | Nassau | 12 hr |
| May 20, 5:26 PM EDT | Areal Flood Warning | JAX | Clay | 20 hr |
Nearby
Special Weather Statements in Florida, 2009Every special weather statement in 2009
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.