Alert archive / Tennessee / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 52, NWS Nashville, TN

May 11, 2001Hickman County, Humphreys County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 11, 2001, 5:07 PM CDT for Hickman County, Humphreys County, Tennessee. It was in force for 38 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: May 11, 2001, 5:07 PM CDT (22:07 UTC)
Expired: May 11, 2001, 5:45 PM CDT
In force: 38 min
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Hickman County, TN, Humphreys County, TN

What was reported inside it

Time	Report	Where	Remark
May 11, 5:30 PM CDT	Thunderstorm Wind 50 E	Countywide, TN	Highway dept. reported a few trees down.

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

Nashville Metro, TN (KBNA), launched 12:00Z, 10.1 hours before the alert went out and 95 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: 527 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 44 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.

000 
WUUS54 KOHX 112208
SVRBNA
TNC081-085-112245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
507 PM CDT FRI MAY 11 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HICKMAN COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF CENTERVILLE
  SOUTHEASTERN HUMPHREYS COUNTY IN TENNESSEE

* UNTIL 545 PM CDT

* AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 17 MILES WEST OF CENTERVILLE...OR ABOUT 14
  MILES NORTH OF LINDEN...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CENTERVILLE AT 540 PM CDT

DAMAGING WINDS...LARGE HAIL WITH TORRENTIAL RAIoNFALL ARE EXPECTED 
WITH THIS STORM. TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM 
PASSES.

$$
STEIGERWALDT

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 Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 11, 1:41 PM CDT, 3 hours 26 minutes earlier.

Area forecast discussion, May 11, 1:41 PM CDT, 3 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
141 PM CDT FRI MAY 11 2001

SHOWERS AND THUNDERSTORMS CONTINUE POPPING UP ACROSS THE MID STATE,
WITH SOME STORMS GETTING CLOSE TO SEVERE THRESHOLDS. AIR MASS IS
MARITIME TOPICAL, WITH DEW POINTS IN THE 60S, AND QUITE UNSTABLE,
WITH 12Z BNA SOUNDING SHOWING CONVECTIVE AVAILABLE POTENTIAL ENERGY
OF 1883 J/KG AND A LIFTED INDEX OF -4.5. COLD FRONT INCHING CLOSER
TO THE MID STATE, WITH 18Z POSITION ACROSS SOUTHERN IL AND SOUTHEAST
MO.

MODELS STILL QUITE CONSISTENT IN THEIR SOLUTIONS, WITH COLD FRONTAL
PASSAGE AT BNA PEGGED AROUND 09Z. ALTHOUGH THE FRONT IS NOT
NECESSARILY STRONG, A THIN RIBBON OF DEEPER MOISTURE WILL SWING
ACROSS THE REGION. BELIEVE SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP OVERNIGHT AS A RESULT.

LOOK FOR A QUICK CHANGE BY SATURDAY AFTERNOON AS SKIES CLEAR OUT
UNDER A DEEP, POST-FRONTAL NORTHWEST FLOW. THE REMAINDER OF THE
WEEKEND AND FIRST OF NEXT WEEK WILL BE QUITE PLEASANT, WITH MOSTLY
SUNNY SKIES AND SEASONAL TEMPERATURES. OVERALL, LOOK FOR FEW CHANGES
WITH THE AFTERNOON ZONE FORECAST PACKAGE.

BNA 61/75/48/76/52 53000
CSV 58/69/43/71/50 53000

.BNA...NONE.

08

In the hours before

Special weather statement, May 11, 1:22 PM CDT, 3 hours 45 minutes before

TNZ005>011-022>034-056>066-075>080-093>097-121030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
122 PM CDT FRI MAY 11 2001

WITH A WARM MOIST AIR MASS AND AN UNSTABLE ENVIRONMENT IN PLACE
ACROSS THE MID STATE, THUNDERSTORMS WILL CONTINUE DURING THE
AFTERNOON. MOST OF THESE THUNDERSTORMS WILL REMAIN BELOW SEVERE
THRESHOLDS, WITH FREQUENT LIGHTNING, GUSTY WINDS, SMALL HAIL, AND
BRIEF HEAVY RAINFALL BEING THE PRIMARY THREATS. SOME OF THESE STORMS
MAY BECOME SEVERE, BUT WIDESPREAD, ORGANIZED SEVERE WEATHER IS NOT
ANTICIPATED.

A COLD FRONT WILL PASS ACROSS MIDDLE TENNESSEE OVERNIGHT, BRINGING
ANOTHER ROUND OF CONVECTION TO THE REGION. AGAIN, SEVERE WEATHER IS
NOT EXPECTED WITH THIS COLD FRONTAL PASSAGE.

ACTIVATION OF EMERGENCY MANAGERS AND SPOTTER GROUPS DUE TO SEVERE
WEATHER IS POSSIBLE THIS AFTERNOON, BUT NOT EXPECTED, AS SEVERE
STORMS WILL BE SPORADIC.

08

Local storm report, May 11, 2:32 PM CDT, 2 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE,TN
232 PM CDT FRI MAY 11 2001

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

0130 PM    NASHVILLE                 TN   WIND DAMAGE
05/11/01   DAVIDSON                       POWER LINES DOWN IN
                                          SOUTH NASHVILLE
                                          REPORTED BY EMERGENCY
    8                                      MANAGEMENT

08

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 1:09 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	36 min
May 11, 2:31 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	29 min
May 11, 2:40 PM CDT	Severe Thunderstorm Warning	OHX	Macon	35 min
May 11, 4:03 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	27 min
May 11, 4:41 PM CDT	Severe Thunderstorm Warning	OHX	Perry	34 min
May 11, 5:56 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner	24 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.