Alert archive / Tennessee / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Morristown, TN

May 10, 2004Cocke County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at May 10, 2004, 4:51 PM EDT for Cocke County, Tennessee. It was in force for 39 min. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 10, 2004, 4:51 PM EDT (20:51 UTC)
Expired: May 10, 2004, 5:30 PM EDT
In force: 39 min
Issued by: NWS Morristown, TN
Area: Counties, with a storm outline in the text

County Cocke County, TN

The radar

The Knoxville radar (KMRX), 33 km from the middle of the area, began a volume at 20:52 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
May 10, 5:00 PM EDT	TSTM WND DMG	6 N Newport, TN	SEVERAL TREES AND POWERLINES DOWN.
May 10, 5:00 PM EDT	TSTM WND DMG	6 N Newport, TN	SEVERAL TREES AND POWERLINES DOWN.
May 10, 5:00 PM EDT	HAIL 0.75	6 N Newport, TN	DIME SIZED HAIL REPORTED ON AND ALONG HIGHWAY 60.
May 10, 5:00 PM EDT	HAIL 0.75	6 N Newport, TN	DIME SIZED HAIL REPORTED ON AND ALONG HIGHWAY 60.
May 10, 5:10 PM EDT	TSTM WND DMG	1 W Parrottsville, TN	SEVERAL TREES AND POWERLINES DOWN ALONG HIGHWAY 321.
May 10, 5:10 PM EDT	TSTM WND DMG	1 W Parrottsville, TN	SEVERAL TREES AND POWERLINES DOWN ALONG HIGHWAY 321.
May 10, 5:10 PM EDT	HAIL 0.25	Parrottsville, TN	PEA SIZE HAIL AND VERY HEAVY RAIN NEAR PARROTSVILLE.
May 10, 5:10 PM EDT	HAIL 0.25	Parrottsville, TN	PEA SIZE HAIL AND VERY HEAVY RAIN NEAR PARROTSVILLE.
May 10, 5:10 PM EDT	HAIL 0.88	1 W Parrottsville, TN	NICKEL SIZED HAIL REPORTED ON AND ALONG HIGHWAY 321.
May 10, 5:10 PM EDT	HAIL 0.88	1 W Parrottsville, TN	NICKEL SIZED HAIL REPORTED ON AND ALONG HIGHWAY 321.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.9 hours before the alert went out and 290 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: 22 J/kg
Mixed-layer CIN: -198 J/kg
Mixed-layer LCL: 1216 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

555 
WUUS54 KMRX 102051
SVRMRX
TNC029-102130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
452 PM EDT MON MAY 10 2004

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COCKE COUNTY IN EAST TENNESSEE

* UNTIL 530 PM EDT

* AT 447 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR PARROTTSVILLE...OR 9 MILES NORTHEAST OF
  NEWPORT.  THE STORM WAS NEARLY STATIONARY.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PARROTTSVILLE AROUND 505 PM EDT
  7 MILES NORTH OF DEL RIO AROUND 530 PM EDT

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  WINDS UP TO 60 MPH...WHICH COULD PUSH OVER SHALLOW ROOTED TREES AND
  BREAK TREE LIMBS ABOUT THE SIZE OF YOUR WRIST.
  HAIL UP TO 1 INCH IN DIAMETER...OR THE SIZE OF QUARTERS.
  VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING.
  FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING.

SEEK A STURDY SHELTER IMMEDIATELY

LAT...LON 3614 8317 3606 8324 3574 8323 3583 8300
          3595 8290

$$

DH

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 10, 3:17 PM EDT	Severe Thunderstorm Warning	MRX	Marion	43 min
May 10, 3:21 PM EDT	Severe Thunderstorm Warning	MRX	Monroe	39 min
May 10, 5:24 PM EDT	Flash Flood Warning	MRX	Cocke	2 hr
May 10, 5:28 PM EDT	Severe Thunderstorm Warning	MRX	Cocke	47 min
May 10, 6:02 PM EDT	Severe Thunderstorm Warning	MRX	Grainger	43 min
May 10, 6:16 PM EDT	Severe Thunderstorm Warning	MRX	Hancock, Hawkins	59 min
May 10, 6:54 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne	36 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2004 Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.