Alert archive / Tennessee / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 100, NWS Morristown, TN

June 29, 2001Hamilton County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 29, 2001, 10:16 PM EDT for Hamilton County, Tennessee. It was in force for 44 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: Jun 29, 2001, 10:16 PM EDT (02:16 UTC)
Expired: Jun 29, 2001, 11:00 PM EDT
In force: 44 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Hamilton County, TN

The radar

The Northeast Alabama radar (KHTX), 88 km from the middle of the area, began a volume at 02:19 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

Nashville Metro, TN (KBNA), launched 00:00Z, 2.3 hours before the alert went out and 167 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: 1066 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 729 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 9:57 PM EDT, 19 minutes earlier.

Area forecast discussion, Jun 29, 9:57 PM EDT, 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
957 PM EDT FRI JUN 29 2001

RADAR SHOWING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS MOVING
NORTH FROM GA.  INTENSITY SHOULD CONTINUE TO DIMINISH THE REST OF
THIS EVENING AS WE LOSE HEATING...BUT WILL KEEP THE LOW CHANCE POPS
GOING THE REST OF TONIGHT FOR ALL THE ZONES.  TEMPERATURES LOOK
GOOD.  WILL UPDATE TO TAKE OUT EVENING WORDING...NO OTHERS CHANGES
PLANNED.

.MR/X...
NC...NONE.
TN...NONE.
VA...NONE.

GH

In the hours before

Local storm report, Jun 29, 7:04 PM EDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
704 PM EDT FRI JUN 29 2001

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0430 PM    JOHNSON CITY              TN   WIND DAMAGE
06/29/01   WASHINGTON                     SEVERAL TREES DOWN IN
                                          JOHNSON CITY REPORTED BY
                                          WASHINGTON COUNTY EOC.

0450 PM    NEAR JEAROLDSTOWN         TN   .75 INCH HAIL
06/29/01   GREENE                         DIME SIZED HAIL WAS
                                          REPORTED ALONG I-81 IN
                                          EXTREME NORTHEAST GREENE
                                          COUNTY. REPORTED BY LOCAL
                                          CITIZENS.

0510 PM    FALL BRANCH               TN   WIND DAMAGE
06/29/01   WASHINGTON                     TREE BLOWN DOWN ON A HOUSE
                                          IN FALL BRANCH. REPORTED BY
                                          WASHINGTON COUNTY EOC.

0520 PM    BLOOMINGDALE              TN   .88 INCH HAIL
06/29/01   SULLIVAN                       NICKLE SIZED HAIL REPORTED
                                          IN BLOOMINGDALE. ALSO
                                          FLOODED ROADS IN THE SAME
                                          TOWN. REPORTED BY SPOTTERS.

0535 PM    NEAR KINGSPORT            TN   .75 INCH HAIL
06/29/01   SULLIVAN                       DIME SIZED HAIL IN THE
                                          GRAVELLY COMMUNITY ON THE
                                          NORTH SIDE OF KINGSPORT.
                                          REPORTED BY HAM/SPOTTERS

0550 PM    DUNGANNON                 VA   WIND DAMAGE
06/29/01   SCOTT                          SEVERAL TREES DOWN NEAR
                                          DUNGANNON. REPORTED BY LAW
                                          ENFORCEMENT

GRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 8:10 PM EDT	Severe Thunderstorm Warning	MRX	Anderson	50 min
Jun 29, 9:57 PM EDT	Severe Thunderstorm Warning	MRX	Monroe, Polk	48 min
Jun 29, 10:39 PM EDT	Severe Thunderstorm Warning	MRX	McMinn	51 min
Jun 30, 5:14 PM EDT	Flash Flood Warning	MRX	Sevier	2 hr
Jun 30, 6:35 PM EDT	Severe Thunderstorm Warning	MRX	Marion	40 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2001 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.