Alert archive / Florida / Tornado Warnings in 2000

Tornado Warning 6, NWS Melbourne, FL

September 17, 2000Martin County, Florida

NWS Melbourne, FL issued this tornado warning at Sep 17, 2000, 9:19 AM EDT for Martin County, Florida. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 17, 2000, 9:19 AM EDT (13:19 UTC)
Expired: Sep 17, 2000, 10:00 AM EDT
In force: 41 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Martin County, FL

The radar

The Melbourne radar (KMLB), 117 km from the middle of the area, began a volume at 13:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 17, 8:00 AM EDT	Tornado Watch	SPC	3 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 1.3 hours before the alert went out and 141 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: 1822 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 901 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 138 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS52 KMLB 171322
TORMLB

FLC085-171400-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
919 AM EDT SUN SEP 17 2000

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  MARTIN COUNTY
  ...IN EAST CENTRAL FLORIDA

* UNTIL 1000 AM EDT.

* AT 913 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  STORM CAPABLE OF PRODUCING A TORNADO 16 MILES SOUTH OF PALM CITY...
  OR ABOUT 9 MILES SOUTHEAST OF INDIANTOWN...MOVING NORTH AT 30 MPH.

* THE STORM CONTAINING THE TORNADO WILL MOVE BETWEEN INDIANTOWN AND 
THE COAST. OTHER STORMS MAY ALSO MOVE NORTH FROM PALM BEACH COUNTY 
AND PRODUCE SHORT LIVED TORNADOES ACROSS MARTIN COUNTY THROUGH 10 
AM.

TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN
HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO
NOT GET CAUGHT OFFGUARD!

OFTEN...IN SITUATIONS SUCH AS THIS...MULTIPLE TORNADOES OCCUR. BE
PREPARED FOR THE OCCURRENCE OF MULTIPLE TORNADOES!

$$

LAT...LON 2687 8046 2683 8026 2720 8021 2720 8041

SPRATT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 8:55 AM EDT	Tornado Warning	MLB	Okeechobee, Osceola	50 min

Nearby

Tornado Warnings in Florida, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.