Alert archive / Florida / Flood Watches in 2021
Flood Watch 2, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this flood watch at Aug 3, 2021, 1:57 AM EDT for 9 counties in Florida. It took effect at Aug 3, 2021, 4:00 AM EDT. It was in force for 64 hr.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2021, 1:57 AM EDT (05:57 UTC)
- In effect from
- Aug 3, 2021, 4:00 AM EDT
- Expired
- Aug 5, 2021, 8:00 PM EDT
- In force
- 64 hr
- Issued by
- NWS Tampa Bay, FL
- Flood severity
- None
Counties Citrus County, FL, Hernando County, FL, Hillsborough County, FL, Levy County, FL, Manatee County, FL, Pasco County, FL, Pinellas County, FL, Sarasota County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 60 km from the middle of the area, began a volume at 05:57 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
Tampa Bay, FL (KTBW), launched 00:00Z, 6.0 hours before the alert went out and 60 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
- 2831 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 914 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
386 WGUS62 KTBW 030557 FFATBW URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tampa Bay Ruskin FL 157 AM EDT Tue Aug 3 2021 FLZ043-139-142-148-239-242-248-032000- /O.NEW.KTBW.FA.A.0002.210803T0800Z-210805T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumter-Coastal Levy-Coastal Citrus-Coastal Hernando-Inland Levy- Inland Citrus-Inland Hernando- Including the cities of Lake Panasoffkee, The Villages, Crystal River, Spring Hill, Yankeetown, Inverness, Bushnell, Brooksville, Chiefland, Bronson, Bayport, Cedar Key, Hernando Beach, Williston, Wildwood, and Homosassa 157 AM EDT Tue Aug 3 2021 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY EVENING... The National Weather Service in Tampa Bay Ruskin has issued a * Flood Watch for a portion of west central Florida, including the following areas, Coastal Citrus, Coastal Hernando, Coastal Levy, Inland Citrus, Inland Hernando, Inland Levy and Sumter. * Through Wednesday evening. * Ample moisture combined with upper level disturbances moving across the region and a stalled frontal boundary draped across north Florida will support periods of locally heavy rain across the region today through Wednesday. These heavy rains may lead to some flooding of low lying and poor drainage areas as well as the ponding of water on roadways especially in areas where the training of storms occur. Rainfall amounts of 2 to 4 inches will be possible with locally higher amounts today through Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ TBW
3 follow-up statements
375 WGUS62 KTBW 030803 CCA FFATBW URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch...CORRECTED National Weather Service Tampa Bay Ruskin FL 403 AM EDT Tue Aug 3 2021 FLZ043-139-142-148-239-242-248-032000- /O.COR.KTBW.FA.A.0002.210803T0802Z-210805T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumter-Coastal Levy-Coastal Citrus-Coastal Hernando-Inland Levy- Inland Citrus-Inland Hernando- Including the cities of Lake Panasoffkee, The Villages, Crystal River, Spring Hill, Yankeetown, Inverness, Bushnell, Brooksville, Chiefland, Bronson, Bayport, Cedar Key, Hernando Beach, Williston, Wildwood, and Homosassa 403 AM EDT Tue Aug 3 2021 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY EVENING... The National Weather Service in Tampa Bay Ruskin has issued a * Flood Watch for a portion of west central Florida, including the following areas, Coastal Citrus, Coastal Hernando, Coastal Levy, Inland Citrus, Inland Hernando, Inland Levy and Sumter. * Through Wednesday evening. * Ample moisture combined with upper level disturbances moving across the region and a stalled frontal boundary draped across north Florida will support periods of locally heavy rain across the region today through Wednesday. These heavy rains may lead to some flooding of low lying and poor drainage areas as well as the ponding of water on roadways especially in areas where the training of storms occur. Rainfall amounts of 4 to 6 inches will be possible with locally higher amounts today through Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ TBW
530 WGUS62 KTBW 040146 FFATBW Flood Watch National Weather Service Tampa Bay Ruskin FL 946 PM EDT Tue Aug 3 2021 FLZ043-139-142-148-239-242-248-050000- /O.CON.KTBW.FA.A.0002.000000T0000Z-210805T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumter-Coastal Levy-Coastal Citrus-Coastal Hernando-Inland Levy- Inland Citrus-Inland Hernando- Including the cities of Lake Panasoffkee, The Villages, Crystal River, Spring Hill, Yankeetown, Inverness, Bushnell, Brooksville, Chiefland, Bronson, Bayport, Cedar Key, Hernando Beach, Williston, Wildwood, and Homosassa 946 PM EDT Tue Aug 3 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... The Flood Watch continues for * A portion of west central Florida, including the following areas, Coastal Citrus, Coastal Hernando, Coastal Levy, Inland Citrus, Inland Hernando, Inland Levy and Sumter. * Through Wednesday evening. * Ample moisture combined with upper level disturbances moving across the region and a stalled frontal boundary draped across north Florida will continue to support periods of locally heavy rain across the region today. These heavy rains may lead to some flooding of low lying and poor drainage areas as well as the ponding of water on roadways especially in areas where the training of storms occur. Additional rainfall amounts of 2 to 4 inches will be possible with locally higher amounts. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ TBW
523 WGUS62 KTBW 042139 FFATBW URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Tampa Bay Ruskin FL 539 PM EDT Wed Aug 4 2021 FLZ050-149-151-155-160-249-251-255-260-060000- /O.EXB.KTBW.FA.A.0002.000000T0000Z-210806T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pinellas-Coastal Pasco-Coastal Hillsborough-Coastal Manatee- Coastal Sarasota-Inland Pasco-Inland Hillsborough-Inland Manatee- Inland Sarasota- Including the cities of St. Petersburg, Clearwater, Largo, Port Richey, Hudson, Tampa, Apollo Beach, Westchase, Bradenton, Anna Maria Island, Venice, Sarasota, Englewood, Dade City, Zephyrhills, Brandon, Plant City, Sun City Center, Parrish, Lakewood Ranch, Myakka City, and North Port 539 PM EDT Wed Aug 4 2021 ...FLOOD WATCH IN EFFECT THROUGH THURSDAY EVENING... The National Weather Service in Tampa Bay Ruskin has expanded the * Flood Watch to include a portion of west central Florida, including the following areas, Coastal Hillsborough, Coastal Manatee, Coastal Pasco, Coastal Sarasota, Inland Hillsborough, Inland Manatee, Inland Pasco, Inland Sarasota, and Pinellas. * Through Thursday evening * Ample moisture combined with upper level disturbances moving across the region and a stalled frontal boundary draped across Florida will continue to support periods of locally heavy rain across the region through the day on Thursday. These heavy rains may lead to some flooding of low lying and poor drainage areas as well as the ponding of water on roadways especially in areas where the training of storms occur. Additional rainfall amounts of 2 to 4 inches will be possible with locally higher amounts. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ FLZ043-139-142-148-239-242-248-060000- /O.EXT.KTBW.FA.A.0002.000000T0000Z-210806T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumter-Coastal Levy-Coastal Citrus-Coastal Hernando-Inland Levy- Inland Citrus-Inland Hernando- Including the cities of Wildwood, Lake Panasoffkee, Bushnell, The Villages, Cedar Key, Yankeetown, Crystal River, Homosassa, Hernando Beach, Bayport, Chiefland, Bronson, Williston, Inverness, Brooksville, and Spring Hill 539 PM EDT Wed Aug 4 2021 ...FLOOD WATCH NOW IN EFFECT THROUGH THURSDAY EVENING... The Flood Watch is now in effect for * A portion of west central Florida, including the following areas, Coastal Citrus, Coastal Hernando, Coastal Levy, Inland Citrus, Inland Hernando, Inland Levy, and Sumter. * Through Thursday evening * Ample moisture combined with upper level disturbances moving across the region and a stalled frontal boundary draped across Florida will continue to support periods of locally heavy rain across the region through the day on Thursday. These heavy rains may lead to some flooding of low lying and poor drainage areas as well as the ponding of water on roadways especially in areas where the training of storms occur. Additional rainfall amounts of 2 to 4 inches will be possible with locally higher amounts. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 1:05 AM EDT | Areal Flood Advisory | TBW | Citrus | 55 min |
| Aug 3, 2:02 AM EDT | Special Marine Warning | TBW | 43 min | |
| Aug 3, 3:26 AM EDT | Areal Flood Warning | TBW | Citrus | 2 hr |
| Aug 3, 4:27 AM EDT | Special Marine Warning | TBW | 33 min | |
| Aug 3, 4:36 AM EDT | Areal Flood Advisory | TBW | Hernando | 54 min |
| Aug 3, 4:56 AM EDT | Special Marine Warning | TBW | 34 min | |
| Aug 3, 6:25 AM EDT | River Flood Warning | TBW | Citrus, Levy | 21 days |
| Aug 3, 6:25 AM EDT | River Flood Warning | TBW | Citrus | 21 days |
| Aug 3, 6:27 AM EDT | Special Marine Warning | TBW | 63 min | |
| Aug 3, 6:51 AM EDT | Special Weather Statement | TBW | Hillsborough, Manatee, Pinellas | 24 min |
| Aug 3, 7:14 AM EDT | Special Weather Statement | TBW | Hillsborough, Manatee | 31 min |
| Aug 3, 11:02 AM EDT | Special Marine Warning | TBW | 28 min | |
| Aug 3, 3:20 PM EDT | Special Weather Statement | TBW | DeSoto | 40 min |
| Aug 3, 3:21 PM EDT | Special Weather Statement | TBW | Osceola | 24 min |
| Aug 3, 4:38 PM EDT | Special Weather Statement | TBW | Lee | 37 min |
Nearby
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.