Alert archive / Tennessee / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 60, NWS Nashville, TN

April 22, 2005Cannon County, Coffee County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Apr 22, 2005, 5:46 PM CDT for Cannon County, Coffee County, Tennessee. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 22, 2005, 5:46 PM CDT (22:46 UTC)
Expired: Apr 22, 2005, 6:15 PM CDT
In force: 29 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Cannon County, TN, Coffee County, TN

The radar

The Nashville radar (KOHX), 80 km from the middle of the area, began a volume at 22:49 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 22, 3:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 72 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: 280 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1102 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 162 m²/s²
0-3 km storm-relative helicity: 142 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 222246
SVROHX
TNC015-031-222315-
/O.NEW.KOHX.SV.W.0060.050422T2246Z-050422T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
546 PM CDT FRI APR 22 2005

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CANNON COUNTY IN TENNESSEE
  NORTHERN COFFEE COUNTY IN TENNESSEE

* UNTIL 615 PM CDT

* AT 545 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED OVER EXTREME NORTH CENTRAL COFFEE COUNTY...OR
  ABOUT 12 MILES NORTH OF MANCHESTER...AND MOVING EAST AT 30 MPH.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3560 8611 3572 8617 3581 8592 3577 8597
      3575 8597 3572 8601 3560 8596 3557 8606
      3557 8611

$$

13

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 Apr 22, 2:30 PM CDT, 3 hours 16 minutes earlier.

Area forecast discussion, Apr 22, 2:30 PM CDT, 3 hours 16 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
230 PM CDT FRI APR 22 2005

.DISCUSSION...
LATEST SURFACE ANALYSIS SHOWING COLD FRONT MOVING ACROSS WEST TN
...NEARING THE TN RIVER. AIRMASS AHEAD BECOMING INCREASINGLY UN-
STABLE AS STRONG UL IMPULSE PUSHES CLOSER AND WARMER AIR SURGES
NORTHWARD INTO THE MID-STATE. AIRMASS DRYING RAPIDLY BEHIND...
WITH 40 DEWPOINTS ALREADY CROSSING THE MS RIVER.

18Z BNA SOUNDING SHOWING A GOOD AMOUNT OF DRY AIR ABOVE H8 THIS
AFTERNOON...WITH MOISTURE DEEPER TOWARD THE EAST. INSTABILITY
BECOMING MORE FAVORABLE AND ML JET STREAK CROSSING THE AREA THROUGH
03Z OR SO...IN ADDITION TO APPROACHING COLD FRONT/LL BOUNDARY...
SHOULD RESULT IN DEVELOPMENT THROUGH THE EARLY EVENING...ESPECIALLY
AROUND AND EAST OF BNA. DRY AIR PRESENT ALOFT HOWEVER MAY INHIBIT
DEVELOPMENT FROM BECOMING TO WIDESPREAD AND AT THIS POINT AND WILL
KEEP SCATTERED POPS BNA WEST...WITH LIKELY POPS EAST. DRY AIR AND
COLD POOL ALOFT MAY STILL LEAD TO SOME TSTORMS PRODUCING DAMAGING
WIND AND/OR LARGE HAIL.

COLD FRONT SHOULD PUSH BY RAPIDLY THIS EVENING...WITH MOISTURE
ASSOCIATED WITH UPPER LOWS WRAPPING BACK DOWN OVERNIGHT. THIS
MOISTURE ALONG WITH CYCLONIC CURVATURE MAY RESULT IN A SOME
SHOWERS...ESPECIALLY PLATEAU...THROUGH SATURDAY.

NO POPS PLANNED SATURDAY NIGHT THROUGH SUNDAY NIGHT AT THIS TIME
BUT TEMPS MAY REACH THE FREEZING LEVEL ACROSS THE MUCH OF THE AREA
SUNDAY MORNING. TIGHT GRADIENT PRODUCING 5-10KT WINDS LIKELY TO
KEEP FROST AT A MINIMUM.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE    47  54  34  55 /  50  30  10  10
CLARKSVILLE  47  54  33  56 /  40  20  10  10
CROSSVILLE   45  48  31  51 /  70  40  10  10

&&

.OHX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

07

Hazardous weather outlook, Apr 22, 5:30 AM CDT, 12 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
530 AM CDT FRI APR 22 2005

TNZ005>011-022>034-056>066-075-077>080-093>095-231030-
BEDFORD-BENTON-CANNON-CHEATHAM-CLAY-COFFEE-CUMBERLAND-DAVIDSON-
DEKALB-DICKSON-FENTRESS-GILES-GRUNDY-HICKMAN-HOUSTON-HUMPHREYS-
JACKSON-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-OVERTON-PERRY-
PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-
VAN BUREN-WARREN-WAYNE-WHITE-WILLIAMSON-WILSON-
530 AM CDT FRI APR 22 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT...
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF
MIDDLE TENNESSEE TODAY THROUGH THIS EVENING. THE AIR MASS WILL REMAIN
UNSTABLE ACROSS MIDDLE TENNESSEE AS A STRONG LOW PRESSURE CENTER
MOVES FROM THE PLAINS THROUGH THE OHIO VALLEY. THE PRIMARY THREAT
IS LARGE HAIL AND DAMAGING WINDS. THE SEVERE WEATHER THREAT WILL
END AFTER A STRONG COLD FRONT MOVES THROUGH THE AREA LATE TODAY
AND THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...
MUCH COOLER CONDITIONS ARE EXPECTED FOR SATURDAY AND SUNDAY AS COLD
AIR POURS INTO THE REGION. A CHANCE OF RAIN RETURNS TO THE
FORECAST MONDAY NIGHT AS WINDS WILL TURN BACK TO THE SOUTH AND A
WEAK COOL FRONT MOVES THROUGH THE AREA ON TUESDAY. HIGH PRESSURE
PUSHES BACK IN TO THE AREA ON WEDNESDAY AND THURSDAY. NO HAZARDOUS
WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
ACTIVATION OF SPOTTERS AND EMERGENCY MANAGERS MAY BE TODAY AND
TONIGHT.

JLM

In the hours before

Local storm report, Apr 22, 1:01 PM CDT, 4 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
101 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0559 AM     HAIL             CROSS PLAINS            36.54N 86.68W
04/22/2005  0.75 INCH        ROBERTSON          TN   PUBLIC

&&

SH

Local storm report, Apr 22, 3:48 PM CDT, 1 hour 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
348 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0345 PM     HAIL             CLARKSVILLE             36.56N 87.35W
04/22/2005  0.88 INCH        MONTGOMERY         TN   TRAINED SPOTTER

&&

STEIGERWALDT

Local storm report, Apr 22, 5:35 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
535 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 PM     HAIL             15 NW MANCHESTER        35.62N 86.27W
04/22/2005  0.75 INCH        BEDFORD            TN   LAW ENFORCEMENT

            PENNY SIZE HAIL REPORTED IN BEECH GROVE AT 515 PM BY NWS
            SPOTTER AND BY COFFEE COUNTY SHERIFF DEPUTY.

&&

MPARRISH

Local storm report, Apr 22, 5:39 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
539 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     HAIL             10 W COOKEVILLE         36.16N 85.68W
04/22/2005  0.75 INCH        PUTNAM             TN   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED BY NWS SPOTTER NEAR BAXTER AT
            THE INTERSECTION OF INTERSTATE 40 AND INTERSTATE 70.

&&

MPARRISH

Local storm report, Apr 22, 5:42 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
542 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0533 PM     HAIL             3 E COOKEVILLE          36.16N 85.45W
04/22/2005  0.25 INCH        PUTNAM             TN   PUBLIC

            PENNY SIZE HAIL 3 EAST OF COOKEVILLE AT BUCK MOUNTAIN.
            REPORTED BY HAM OPERATOR.

&&

MPARRISH

Local storm report, Apr 22, 5:45 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
545 PM CDT FRI APR 22 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0535 PM     HAIL             5 WNW MCMINNVILLE       35.72N 85.86W
04/22/2005  0.75 INCH        WARREN             TN   TRAINED SPOTTER

            PENNY SIZE HAIL AT CENTERTOWN, 5 WNW OF MCMINNVILLE BY
            TRAINED SPOTTER THROUGH HAM OPERATOR

&&

MPARRISH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 8:51 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	54 min
Apr 21, 11:07 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	53 min
Apr 21, 11:43 PM CDT	Severe Thunderstorm Warning	OHX	Benton	47 min
Apr 22, 12:25 AM CDT	Severe Thunderstorm Warning	OHX	Maury	35 min
Apr 22, 1:17 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	28 min
Apr 22, 4:23 AM CDT	Severe Thunderstorm Warning	OHX	Stewart	37 min
Apr 22, 5:40 AM CDT	Severe Thunderstorm Warning	OHX	Robertson, Sumner	35 min
Apr 22, 6:44 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Williamson	31 min
Apr 22, 7:04 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Wilson	26 min
Apr 22, 7:39 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford, Williamson	36 min
Apr 22, 3:48 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	27 min
Apr 22, 5:09 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Warren	36 min
Apr 22, 5:24 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	21 min
Apr 22, 5:26 PM CDT	Severe Thunderstorm Warning	OHX	Overton, Putnam	34 min
Apr 22, 5:41 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	34 min
Apr 22, 5:44 PM CDT	Severe Thunderstorm Warning	OHX	Warren	31 min
Apr 22, 5:50 PM CDT	Severe Thunderstorm Warning	OHX	Giles	25 min
Apr 22, 5:51 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton	24 min
Apr 22, 6:01 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Cumberland, Grundy, Van Buren, Warren, White	29 min
Apr 22, 6:11 PM CDT	Severe Thunderstorm Warning	OHX	Fentress	34 min
Apr 22, 6:25 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Grundy, Van Buren, Warren, White	35 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2005 Every severe thunderstorm warning in 2005

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.