Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 145, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Sep 6, 2001, 6:25 PM EDT for Hillsborough County, Florida. It was in force for 50 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 6, 2001, 6:25 PM EDT (22:25 UTC)
- Expired
- Sep 6, 2001, 7:15 PM EDT
- In force
- 50 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hillsborough County, FL
The radar
The Tampa radar (KTBW), 23 km from the middle of the area, began a volume at 22:28 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 |
|---|---|---|---|
| Sep 6, 6:35 PM EDT | Thunderstorm Wind | Citrus Park, FL | A Tampa Electric Power representative reported thunderstorm winds downed a few large trees, several branches and power lines from Citrus Park to Lutz. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 10.4 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
- 1245 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 904 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
649 WUUS52 KTBW 062226 SVRTBW FLC057-062315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 625 PM EDT THU SEP 6 2001 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN HILLSBOROUGH COUNTY IN FLORIDA. * UNTIL 715 PM EDT. * AT 625 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...9 MILES SOUTHWEST OF LUTZ. THE STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL AFFECT... LUTZ. TOWN N COUNTRY. WEST PARK. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. $$ LAT...LON 2802 8264 2794 8243 2816 8233 2817 8264 13 NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Sep 6, 2:00 PM EDT, 4 hours 25 minutes earlier.
Area forecast discussion, Sep 6, 2:00 PM EDT, 4 hours 25 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 200 PM EDT THU SEP 6 2001 ...CORRECTED 3RD PERIOD POP... THIS WILL BE BRIEF AS THE AFD I JUST SPENT THE LAST HOUR TYPING GOT LOST SOMEWHERE IN THE MEMORY OF AWIPS. A WEAK TROUGH WILL CONTINUE OVER THE NORTHERN PART OF THE STATE WHICH WILL ENHANCE RAIN CHANCES OVER THE NEXT COUPLE DAYS. A DEEP TROUGH WILL DIG SOUTH INTO THE SOUTH CENTRAL STATES BY THE WEEKEND. THIS WILL HELP KEEP HEIGHTS AND SURFACE PRESSURES A LITTLE LOWER. I WILL RUN HIGHER THAN SEASONAL NORMALS THROUGH THE WEEKEND. THE BIG QUESTION IS WITH THE STEERING FLOW WHICH WILL REMAIN VERY WEAK. HEAVY RAIN WILL BE A PROBLEM AS WILL TIMING AS THE RIDGE WILL MEANDER OVER THE STATE. I HAVE A LITTLE TROUBLE BELIEVING THE MRF. THERE ARE BIG DIFFERENCES BETWEEN THE MRF...UKMET AND ECMWF. IN FACT THERE ARE SUBSTANTIAL DIFFERENCES BETWEEN THE MRF AND AVN. I WILL BROADBRUSH THE FORECAST AND KEEP NEAR NORMAL POPS IN THE EXTENDED IN SPITE OF THE FACT THAT THE MRF WANTS TO SPIN UP ERIN...AND ALLOWED IT TO PULL DRY AIR SOUTHWARD OVER THE STATE. NO MARINE OR FIRE WEATHER ISSUES. PRELIMINARY NUMBERS TPA TT 076/089 076/089 075 7464 FMY TT 075/090 075/090 075 7464 .TBW...NONE. SOBIEN
Nearby
Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.