Alert archive / Florida / Flood Watches in 2017

Flood Watch 1, NWS Tampa Bay, FL

July 31, 20179 counties in Florida

NWS Tampa Bay, FL issued this flood watch at Jul 31, 2017, 5:37 AM EDT for 9 counties in Florida. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Jul 31, 2017, 5:37 AM EDT (09:37 UTC)
Expired: Jul 31, 2017, 4:38 PM EDT
In force: 11 hr
Issued by: NWS Tampa Bay, FL
Flood severity: None

Counties Charlotte County, FL, DeSoto County, FL, Hardee County, FL, Highlands County, FL, Hillsborough County, FL, Lee County, FL, Manatee County, FL, Pinellas County, FL, Sarasota County, FL

The radar

The Tampa radar (KTBW), 53 km from the middle of the area, began a volume at 09:38 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

Miami, FL (KMFL), launched 00:00Z, 9.6 hours before the alert went out and 244 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 257 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tampa Bay, FL wrote its last area forecast discussion before this flood watch went out at Jul 30, 8:52 PM EDT, 8 hours 45 minutes earlier.

Area forecast discussion, Jul 30, 8:52 PM EDT, 8 hours 45 minutes before

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The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 30, 8:44 PM EDT	Rip Current Statement	TBW	Charlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota	12 hr
Jul 31, 5:08 AM EDT	Small Craft Advisory	TBW		5 hr
Jul 31, 6:00 AM EDT	Special Marine Warning	TBW		60 min
Jul 31, 6:32 AM EDT	Tropical Storm Watch	TBW	Hillsborough, Manatee, Pinellas, Sarasota	2 hr
Jul 31, 7:11 AM EDT	Special Marine Warning	TBW		64 min
Jul 31, 8:38 AM EDT	Tropical Storm Warning	TBW	Charlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota	9 hr
Jul 31, 9:47 AM EDT	River Flood Warning	TBW	Sarasota	10 days
Jul 31, 9:47 AM EDT	River Flood Warning	TBW	DeSoto	24 hr
Jul 31, 9:47 AM EDT	River Flood Warning	TBW	Hillsborough	4 days
Jul 31, 9:47 AM EDT	River Flood Warning	TBW	Manatee	3 days
Jul 31, 10:38 AM EDT	Areal Flood Advisory	TBW	Hillsborough, Manatee, Sarasota	112 min
Jul 31, 10:50 AM EDT	Tornado Warning	TBW	Manatee	25 min
Jul 31, 11:22 AM EDT	Areal Flood Warning	TBW	Manatee	113 min
Jul 31, 11:40 AM EDT	Areal Flood Advisory	TBW	Charlotte, Manatee, Sarasota	95 min
Jul 31, 12:29 PM EDT	Areal Flood Advisory	TBW	Hillsborough	91 min
Jul 31, 2:50 PM EDT	Small Craft Advisory	TBW		2 hr
Jul 31, 3:19 PM EDT	River Flood Warning	TBW	Hillsborough	3 days
Jul 31, 6:23 PM EDT	Special Weather Statement	TBW	Highlands	52 min

Nearby

Flood Watches in Florida, 2017 Every flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.