Alert archive / Tennessee / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 227, NWS Nashville, TN

May 26, 20116 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 26, 2011, 12:58 AM CDT for 6 counties in Tennessee. It was in force for 32 min. 6 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 26, 2011, 12:58 AM CDT (05:58 UTC)
Expired
May 26, 2011, 1:30 AM CDT
In force
32 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon

Counties Cannon County, TN, Coffee County, TN, DeKalb County, TN, Grundy County, TN, Warren County, TN, White County, TN

The radar

The Northeast Alabama radar (KHTX), 72 km from the middle of the area, began a volume at 05:58 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

TimeReportWhereRemark
May 26, 1:00 AM CDTTORNADOSmithville, TNA BRIEF TORNADO OCCURRED IN SMITHVILLE AT 1AM CDT ON MAY 26. IT SEVERELY DAMAGED A GAS STATION BUILDING BUT THE CANOPY REMAINED IN TACT. IT ALSO DAMAGED A NEARBY RESTAURANT. MANY TREES WERE SNAPPED/UPROOTED. THE TORNADO PATH LENGTH WAS LESS THAN 2 MILES.
May 26, 1:05 AM CDTTSTM WND DMGSmithville, TNTEMA REPORTS A CONVENIENT STORE WAS LEVELED IN SMITHVILLE. THIS IS A POSSIBLE TORNADO BUT UNCOMFIRMED AT THIS TIME.
May 26, 1:15 AM CDTTSTM WND DMGMcminnville, TNMULTIPLE REPORTS OF TREES BLOWN DOWN.
May 26, 1:35 AM CDTTSTM WND DMGManchester, TNLARGE TREE BLOWN DOWN NEAR INTERSECTION OF HWY 41 AND HWY 53.
May 26, 1:36 AM CDTTSTM WND DMGSmithville, TNTREES AND POWER LINES DOWN IN SEVERAL AREAS IN DEKALB COUNTY.
May 26, 1:36 AM CDTTSTM WND DMGWoodbury, TNTREES AND POWER LINES DOWN NEAR HIGHWAY 56 AND SEALS HOLLOW ROAD.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 7 minutes after it went out.

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.

IssuedProductOfficeLasted
May 25, 8:33 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.0 hours before the alert went out and 79 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1870 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2011-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1870 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1479 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
334 m²/s²
Significant tornado parameter
1.5
Supercell composite
14.1

Open this sounding in Storm Lab

The text

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

249 
WUUS54 KOHX 260558
SVROHX
TNC015-031-041-061-177-185-260630-
/O.NEW.KOHX.SV.W.0227.110526T0558Z-110526T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1258 AM CDT THU MAY 26 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN WARREN COUNTY IN MIDDLE TENNESSEE...
  CANNON COUNTY IN MIDDLE TENNESSEE...
  SOUTHWESTERN WHITE COUNTY IN MIDDLE TENNESSEE...
  SOUTHERN DEKALB COUNTY IN MIDDLE TENNESSEE...
  COFFEE COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN GRUNDY COUNTY IN MIDDLE TENNESSEE...

* UNTIL 130 AM CDT

* AT 1258 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. THE STORM WAS NEAR MANCHESTER...MOVING NORTHEAST AT 60
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  WOODBURY...
  MCMINNVILLE...
  SMITHVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. DO NOT
STAY OUTDOORS IF YOU ARE IN THE PATH OF SEVERE THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM THURSDAY MORNING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3532 8599 3535 8604 3536 8616 3535 8618
      3536 8625 3544 8626 3546 8623 3548 8624
      3596 8602 3597 8601 3599 8601 3606 8598
      3592 8560 3530 8592
TIME...MOT...LOC 0558Z 218DEG 55KT 3564 8604

$$

FORECASTER: 31
2 follow-up statements
275 
WWUS54 KOHX 260608
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
108 AM CDT THU MAY 26 2011

TNC185-260618-
/O.CAN.KOHX.SV.W.0227.000000T0000Z-110526T0630Z/
WHITE TN-
108 AM CDT THU MAY 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WHITE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3532 8599 3535 8604 3536 8616 3562 8610
      3602 8588 3594 8565 3589 8565 3588 8564
      3585 8567 3585 8564 3583 8566 3582 8565
      3530 8592
TIME...MOT...LOC 0608Z 252DEG 48KT 3571 8590

$$

TNC015-031-041-061-177-260630-
/O.CON.KOHX.SV.W.0227.000000T0000Z-110526T0630Z/
WARREN TN-CANNON TN-DEKALB TN-COFFEE TN-GRUNDY TN-
108 AM CDT THU MAY 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
GRUNDY...EASTERN COFFEE...SOUTHERN DEKALB...SOUTHEASTERN CANNON AND
WESTERN WARREN COUNTIES UNTIL 130 AM CDT...

AT 108 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 9 MILES WEST OF MCMINNVILLE...MOVING
EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  MCMINNVILLE AND SMITHVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3532 8599 3535 8604 3536 8616 3562 8610
      3602 8588 3594 8565 3589 8565 3588 8564
      3585 8567 3585 8564 3583 8566 3582 8565
      3530 8592
TIME...MOT...LOC 0608Z 252DEG 48KT 3571 8590

$$
31
050 
WWUS54 KOHX 260622
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
122 AM CDT THU MAY 26 2011

TNC015-031-041-061-177-260632-
/O.EXP.KOHX.SV.W.0227.000000T0000Z-110526T0630Z/
WARREN TN-CANNON TN-DEKALB TN-COFFEE TN-GRUNDY TN-
122 AM CDT THU MAY 26 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GRUNDY...EASTERN
COFFEE...SOUTHERN DEKALB...SOUTHEASTERN CANNON AND WESTERN WARREN
COUNTIES WILL EXPIRE AT 130 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3532 8599 3535 8604 3536 8616 3562 8610
      3602 8588 3594 8565 3589 8565 3588 8564
      3585 8567 3585 8564 3583 8566 3582 8565
      3530 8592
TIME...MOT...LOC 0622Z 252DEG 48KT 3577 8568

$$
31

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 26, 12:06 AM CDT, 52 minutes earlier.

Area forecast discussion, May 26, 12:06 AM CDT, 52 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1206 AM CDT THU MAY 26 2011

.UPDATE...FOR 06Z TAFS

&&

.AVIATION...MVFR CIGS/VSBYS WITH OCNL IFR CIG/VSBYS IN TSTMS WITH
STRONG GUSTY WINDS TIL 0700Z. CIG/VSBY IMPROVING TO MVFR 07Z-10Z
THEN VFR CONDITIONS AFTER 10Z. MORE TSTMS POSSIBLE TOMORROW
AFTER 16Z. SOUTH WINDS SHIFTING TO WESTERLY LATE TOMORROW.
VFR CONDITIONS AT KCSV DETERIORATIING TO MVFR 07Z-09Z. IFR CONDITIONS
IN TSTMS EXPECTED FROM 09Z-13Z. MVFR/VFR CONDITIONS AFTER 13Z...BUT
TSTMS POSSIBLE TOMORROW AFTERNOON AFTER 19Z. COOLER AND DRIER CONDITIONS
TOMORROW NIGHT UNDER WESTERLY FLOW.

&&

.PREV DISCUSSION... /ISSUED 812 PM CDT WED MAY 25 2011/

DISCUSSION...LINE OF SEVERE TSTMS APPROACHES THE TENNESSEE RIVER...
SHOULD ENTER STEWART COUNTY AROUND 830 PM AND BENTON COUNTY AROUND
9 PM. LINE APPEARS TO HAVE WEAKENED A BIT AS IT MOVED INTO WEST TENNESSEE.
SPC HAS ALSO DOWNGRADED THE HIGH RISK AREA TO MODERATE RISK.
LATEST OHX SOUNDING SHOWS A BIT OF DRY AIR AROUND 700MB AND
A BIT OF AN INVERSION. THIS WOULD BE A NEGATIVE FACTOR TAMPING
DOWN THE SEVERE THREAT. CURRENT MOVEMENT WOULD BRING THE MAIN LINE INTO
DAVIDSON COUNTY AROUND 1030-1100 PM. WE EXPECT THIS LINE TO WEAKEN
FURTHER AS IT MOVES EASTWARD INTO THE PLATEAU LATE TONIGHT.

CURRENT PACKAGE LOOKS GOOD AND DO NOT ANTICIPATE CHANGES.

PREV DISCUSSION... /ISSUED 738 PM CDT WED MAY 25 2011/

MESOSCALE UPDATE...EVENING SOUNDING FROM OHX IS IN, AND SHOWS AN
UNSTABLE, SHEARED, BUT SLIGHTLY DRY PRE-STORM ENVIRONMENT IN
PLACE. LIFTED INDEX IS STILL -6.9, BUT CAPE HAS DROPPED TO 2296
J/KG, AND K-INDEX IS 23. HELICITY IN THE 0-3 KM LAYER HAS
INCREASED TO 387. A COUPLE OF FEATURES, HOWEVER, STAND OUT THAT
MAY INHIBIT CONVECTION OVER MIDDLE TENNESSEE. FIRST, A SIZABLE
CAP EXISTS BETWEEN ABOUT 820 MB AND 700 MB. SECOND, THE LCL IS
NEARLY 4.8 KFT, INDICATING A DRY LOW-LEVEL ENVIRONMENT. STILL,
FULLY EXPECT LINE OF CONVECTION CURRENTLY OVER WEST TENNESSEE TO
PROGRESS DEEP INTO THE MID STATE, AND AM ALSO KEEPING AN EYE OUT
FOR CELL DEVELOPMENT AHEAD OF THE MAIN SQUALL LINE.

PREV DISCUSSION... /ISSUED 605 PM CDT WED MAY 25 2011/

AVIATION...BNA/CSV...MAJOR WEATHER SYSTEM APPROACHING THE
MISSISSIPPI RIVER AT THIS MOMENT, WITH MIDDLE TENNESSEE UNDER THE
GUN LATER THIS EVENING AND OVERNIGHT. LINE OF CONVECTION (OR
DISCREET SUPERCELLS) WILL LIKELY REACH BNA AROUND 06Z, AND CSV
AROUND 12Z, AND HAVE INCLUDED TEMPO PERIODS BUILT AROUND THESE
TIMES. WINDS WILL REMAIN GUSTY OVERNIGHT AS THE SURFACE PRESSURE
GRADIENT INCREASES, AND WIND GUSTS ARE EXPECTED TO INCREASE
DRAMATICALLY UNDERNEATH THUNDERSTORMS AS 850 WINDS WILL INCREASE
TO AROUND 50 KTS AHEAD OF THE CONVECTION.

PREV DISCUSSION... /ISSUED 322 PM CDT WED MAY 25 2011/

DISCUSSION...
AT MID AFTERNOON...TEMPS HAVE WARMED INTO THE MID 80S OVER W HALF
AND GENERALLY LOWER 80S E...WITH DEW POINTS IN THE MID TO UPPER
60S. SPC MESOANALYSIS SITE SHOWED SURFACE BASED CAPES HAVE RISEN
TO ABOVE 3000 JOULES PER KG OVER THE W THIRD OF OUR CWA...WITH MOST OF
THE HELICITY CONCENTRATED IN LOWEST 1 KM OF ATMOSPHERE...WHICH IS
ESPECIALLY GOOD FOR GENERATION OF TORNADIC STORMS.

ISOLATED STORMS HAD DEVELOPED NEAR AND OR JUST W OF THE TN RIVER IN
AN AREA OF MAXIMUM PRECIP EFFICIENCY AND PW VALUES. TORNADO WATCHES
WERE ISSUED EARLIER FOR AREAS JUST N OF...AND JUST W OF OUR CWA.

CONTINUED CONVECTIVE DEVELOPMENT IS EXPECTED THROUGH THE REST OF THE
AFTERNOON AND EVENING HOURS. I WOULD EXPECT THAT A WATCH WILL BE
ISSUED IN THE NEXT COUPLE OF HOURS THAT WILL INCLUDE AREAS OF WEST
MIDDLE TN. WE WILL SEE.

MESOSCALE MODELS INDICATE A ROUND OF SEVERE WEATHER WILL MOVE ACROSS
THE W AND CENTRAL PORTIONS OF OUR CWA BY ABOUT MIDNIGHT...THEN
WEAKEN AND CONTINUE MOVING E INTO THE CUMBERLAND PLATEAU AREA.
THEN PERHAPS ANOTHER ROUND OF POTENTIAL SEVERE STORMS OVER THE
AREA ON THU.

A COLD FRONT WILL MOVE INTO THE W PART OF OUR AREA EARLY THU
AFTERNOON...AND THEN TO THE CUMBERLAND PLATEAU AREA THU NIGHT...
WHICH WILL BRING AN END TO ANY THREAT OF SEVERE WEATHER.

OTHER THAN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE E
SECTION EARLY IN THE DAY ON FRI...WEAK HIGH PRESSURE MOVING INTO THE
AREA WILL RESULT IN DRY WEATHER ACROSS THE AREA BY FRI AFTERNOON.

RETURN FLOW AROUND THE HIGH FRI NIGHT INTO SAT MORNING...ALONG WITH
A WARM FRONT MOVING N ACROSS THE AREA WILL RESULT IN A LOW CHANCE OF
SHOWERS AND THUNDERSTORMS. OTHERWISE...BUILDING HIGH PRESSURE OVER
THE SE...AND RIDGING DEVELOPING ALOFT WILL PROVIDE NOT ONLY A DRY
WEEKEND WITH RATHER WARM TEMPERATURES...BUT DRY WEATHER AND WARM
TEMPERATURES CONTINUING INTO THE MIDDLE OF NEXT WEEK.

A WEAK COLD FRONT MAY MOVE ACROSS THE AREA ON WED...BUT WITH HIGH
PRESSURE CONTINUING BOTH AT THE SURFACE AND ALOFT...IT LOOKS LIKE IT
WILL ONLY BE A WIND SHIFT LINE AT BEST. BUT THERE MAY BE ENOUGH
MOISTURE ASSOCIATED WITH IT TO GENERATE A FEW SHOWERS AND
THUNDERSTORMS OVER THE ELEVATED TERRAIN OF THE CUMBERLAND PLATEAU.

&&

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

JLM
Hazardous weather outlook, May 25, 8:32 PM CDT, 4 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
832 PM CDT WED MAY 25 2011

TNZ005>011-022>034-056>066-075-077>080-093>095-270145-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
832 PM CDT WED MAY 25 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE STORMS ACROSS WESTERN TWO THIRDS
OF MIDDLE TENNESSEE. THIS INCLUDES NASHVILLE, COLUMBIA,
CLARKSVILLE, DOVER, AND CAMDEN. THERE IS A SLIGHT RISK OF SEVERE
STORMS ACROSS THE EASTERN ONE THIRD OF THE MID STATE, INCLUDING
COOKEVILLE, CROSSVILLE AND MANCHESTER IN THE CUMBERLAND PLATEAU.

THE SEVERE THREAT WILL BE MAINLY LARGE HAIL, POWERFUL WINDS, AND
ISOLATED TORNADOES. THE THUNDERSTORMS WILL MOVE EASTWARD ACROSS
THE MID STATE THROUGHOUT THE EVENING AND OVERNIGHT. THE STORMS
WILL WEAKEN SLIGHTLY, BUT MAY STILL POSE A SIGNIFICANT SEVERE
WEATHER THREAT ACROSS THE ENTIRE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS. SCATTERED
THUNDERSTORMS COULD FLARE UP AGAIN ON THURSDAY, MAINLY EAST OF
INTERSTATE 65. LOCALLY DAMAGING WIND GUSTS AND HAIL ARE THE MAIN
CONCERNS.

.SPOTTER INFORMATION STATEMENT...

REPORTS FROM TRAINED WEATHER SPOTTERS WILL LIKELY BE NEEDED.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

JLM

In the hours before

Local storm report, May 26, 12:39 AM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
1239 AM CDT THU MAY 26 2011

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

1000 PM     TSTM WND DMG     MCEWEN                  36.11N 87.64W
05/25/2011                   HUMPHREYS          TN   PUBLIC

            TREES DOWN WITH LINE OF STORMS COUNTYWIDE.

1000 PM     TSTM WND DMG     13 NW GALLATIN          36.51N 86.62W
05/25/2011                   SUMNER             TN   LAW ENFORCEMENT

            TREES DOWN HWY 25 AND 71W.

1000 PM     TSTM WND DMG     CUMBERLAND CITY         36.38N 87.64W
05/25/2011                   STEWART            TN   LAW ENFORCEMENT

            TREES DOWN.

1015 PM     TSTM WND DMG     CHARLOTTE               36.18N 87.35W
05/25/2011                   DICKSON            TN   PUBLIC

            TREES DOWN.

1025 PM     TSTM WND DMG     CLARKSVILLE             36.56N 87.35W
05/25/2011                   MONTGOMERY         TN   EMERGENCY MNGR

            TREES DOWN ACROSS COUNTY.

1030 PM     TSTM WND DMG     ASHLAND CITY            36.28N 87.06W
05/25/2011                   CHEATHAM           TN   LAW ENFORCEMENT

            TREES DOWN NORTH OF CITY.

1035 PM     TSTM WND DMG     BURNS                   36.05N 87.31W
05/25/2011                   DICKSON            TN   AMATEUR RADIO

            TREE DOWN.

1045 PM     TSTM WND DMG     SPRINGFIELD             36.50N 86.88W
05/25/2011                   ROBERTSON          TN   LAW ENFORCEMENT

            TREES DOWN IN SPRINGFIELD.

1046 PM     TSTM WND GST     FAIRVIEW                35.98N 87.12W
05/25/2011  M50.00 MPH       WILLIAMSON         TN   TRAINED SPOTTER

            SPOTTER MEASURED 50 MPH GUST.

1050 PM     TSTM WND DMG     CENTERVILLE             35.79N 87.45W
05/25/2011                   HICKMAN            TN   LAW ENFORCEMENT

            TREES DOWN IN CITY.

1055 PM     TSTM WND DMG     13 NW GALLATIN          36.51N 86.62W
05/25/2011                   SUMNER             TN   LAW ENFORCEMENT

            TREES DOWN HWY 25 AND 71W.

1112 PM     FUNNEL CLOUD     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   LAW ENFORCEMENT

            FUNNEL CLOUD REPORTED IN PORTLAND BY EMS PERSONNEL.

1115 PM     TSTM WND GST     W HENDERSONVILLE        36.29N 86.60W
05/25/2011  E60.00 MPH       SUMNER             TN   AMATEUR RADIO

            60 MPH WIND GUST.

1116 PM     HAIL             HOHENWALD               35.55N 87.56W
05/25/2011  E0.50 INCH       LEWIS              TN   AMATEUR RADIO

            DIME SIZE HAIL REPORTED IN HOHENWALD.

1118 PM     TSTM WND DMG     2 E LAWRENCEBURG        35.25N 87.30W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            POWER POLES DOWN JUST EAST OF LAWRENCEBURG.

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1120 PM     DENSE FOG        PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            CC

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1122 PM     HAIL             LAWRENCEBURG            35.25N 87.34W
05/25/2011  E1.00 INCH       LAWRENCE           TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED NEAR LAWRENCEBURG.

1125 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1125 PM     TSTM WND DMG     1 E HOHENWALD           35.55N 87.54W
05/25/2011                   LEWIS              TN   AMATEUR RADIO

            TREES DOWN ON CARS AND POWER OUTAGES. HOWARD SWITCH AND
            MEMORIAL ROAD INTERSECTION.

1130 PM     HAIL             5 S LAWRENCEBURG        35.17N 87.34W
05/25/2011  E0.50 INCH       LAWRENCE           TN   EMERGENCY MNGR

            DIME SIZE HAIL REPORTED IN LEOMA.

1134 PM     TSTM WND DMG     8 NW ETHRIDGE           35.40N 87.40W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            TREE DOWN ON HOUSE.

1138 PM     FUNNEL CLOUD     FRANKLIN                35.93N 86.84W
05/25/2011                   WILLIAMSON         TN   AMATEUR RADIO

            FUNNEL CLOUD REPORTED IN FRANKLIN.

1140 PM     TSTM WND DMG     MOUNT PLEASANT          35.55N 87.19W
05/25/2011                   MAURY              TN   LAW ENFORCEMENT

            TREES DOWN BLOCKING HWY 43 NEAR CITY.

1140 PM     TSTM WND DMG     LAWRENCEBURG            35.25N 87.34W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            TREES DOWN BLOCKING HWY 64 WEST

1140 PM     TSTM WND DMG     6 SW LAWRENCEBURG       35.18N 87.41W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            MOBILE HOME TURNED OVER. PERSON TRAPPED INSIDE.

1142 PM     TSTM WND GST     4 NW LEBANON            36.25N 86.37W
05/25/2011  E50.00 MPH       WILSON             TN   NWS EMPLOYEE

            WIND GUST OF 50 MPH REPORTED NEAR LEBANON.

1150 PM     TSTM WND GST     3 S FRANKLIN            35.89N 86.84W
05/25/2011  M50.00 MPH       WILLIAMSON         TN   AMATEUR RADIO

            LEWISBURG PIKE/GREEN VALLEY COMMUNITY.

1150 PM     TSTM WND DMG     HENDERSONVILLE          36.29N 86.60W
05/25/2011                   SUMNER             TN   EMERGENCY MNGR

            TREES DOWN AND DAMAGE TO COMMERCIAL BUILDING. DOOR BLOWN
            IN.

1150 PM     TSTM WND DMG     6 SW LAWRENCEBURG       35.18N 87.41W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            ROOF BLOWN OFF HOME IN GANDY COMMUNITY.

1200 AM     TSTM WND GST     1 E NASHVILLE           36.17N 86.77W
05/26/2011  E50.00 MPH       DAVIDSON           TN   AMATEUR RADIO

            NUMBEROUS REPORTS OF SMALL HAIL AND WIND GUSTS TO 50 MPH
            ACROSS COUNTY.

1200 AM     TSTM WND DMG     6 N ETHRIDGE            35.41N 87.30W
05/26/2011                   LAWRENCE           TN   AMATEUR RADIO

            TREE DOWN ON HOUSE. NEW PROSPECT COMMUNITY.

1200 AM     TSTM WND GST     1 E NASHVILLE           36.17N 86.77W
05/26/2011  E50.00 MPH       DAVIDSON           TN   AMATEUR RADIO

            NUMEROUS REPORTS OF SMALL HAIL AND WIND GUST OF 50 MPH
            ACROSS COUNTY. PUBLIC REPORTED FUNNEL AT OLD HICKORY BLVD
            AND LEBANON PIKE INTERSECTION.

1210 AM     TSTM WND DMG     COLUMBIA                35.62N 87.05W
05/26/2011                   MAURY              TN   AMATEUR RADIO

            TREES DOWN ON CARPORT. HWY 91 AND US 31.

1210 AM     FUNNEL CLOUD     MURFREESBORO            35.85N 86.39W
05/26/2011                   RUTHERFORD         TN   LAW ENFORCEMENT

            POLICE DEPARTMENT REPORT.

1215 AM     HAIL             SHELBYVILLE             35.49N 86.45W
05/26/2011  E1.00 INCH       BEDFORD            TN   TRAINED SPOTTER

1220 AM     TSTM WND DMG     SMYRNA                  35.98N 86.52W
05/26/2011                   RUTHERFORD         TN   EMERGENCY MNGR

            REPORTS OF TREES AND POWER LINES DOWN IN PARTS OF SMYRNA
            AND LAVERGNE.

1220 AM     TSTM WND GST     MURFREESBORO            35.85N 86.39W
05/26/2011  E60.00 MPH       RUTHERFORD         TN   PUBLIC

1225 AM     TORNADO          2 W MURFREESBORO        35.85N 86.43W
05/26/2011                   RUTHERFORD         TN   LAW ENFORCEMENT

            POSSIBLE TORNADO NEAR MURFREESBORO.

1231 AM     TSTM WND DMG     MURFREESBORO            35.85N 86.39W
05/26/2011                   RUTHERFORD         TN   FIRE DEPT/RESCUE

            LARGE TREE DOWN AT BURNT KNOB ROAD AND BLACKMAN ROAD.

1231 AM     TSTM WND GST     4 NW LEBANON            36.25N 86.37W
05/26/2011  E60.00 MPH       WILSON             TN   NWS EMPLOYEE

            REPORTED THUNDERSTORM WIND GUST TO 60 MPH.

1236 AM     LIGHTNING        LAWRENCEBURG            35.25N 87.34W
05/26/2011                   LAWRENCE           TN   EMERGENCY MNGR

            EMS EMPLOYEE STRUCK BY LIGHTNING.

&&

31
Local storm report, May 26, 12:42 AM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
1242 AM CDT THU MAY 26 2011

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

1045 PM     TSTM WND DMG     SPRINGFIELD             36.50N 86.88W
05/25/2011                   ROBERTSON          TN   LAW ENFORCEMENT

            TREES DOWN IN SPRINGFIELD.

1046 PM     TSTM WND GST     FAIRVIEW                35.98N 87.12W
05/25/2011  M50.00 MPH       WILLIAMSON         TN   TRAINED SPOTTER

            SPOTTER MEASURED 50 MPH GUST.

1050 PM     TSTM WND DMG     CENTERVILLE             35.79N 87.45W
05/25/2011                   HICKMAN            TN   LAW ENFORCEMENT

            TREES DOWN IN CITY.

1055 PM     TSTM WND DMG     13 NW GALLATIN          36.51N 86.62W
05/25/2011                   SUMNER             TN   LAW ENFORCEMENT

            TREES DOWN HWY 25 AND 71W.

1112 PM     FUNNEL CLOUD     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   LAW ENFORCEMENT

            FUNNEL CLOUD REPORTED IN PORTLAND BY EMS PERSONNEL.

1115 PM     TSTM WND GST     W HENDERSONVILLE        36.29N 86.60W
05/25/2011  E60.00 MPH       SUMNER             TN   AMATEUR RADIO

            60 MPH WIND GUST.

1116 PM     HAIL             HOHENWALD               35.55N 87.56W
05/25/2011  E0.50 INCH       LEWIS              TN   AMATEUR RADIO

            DIME SIZE HAIL REPORTED IN HOHENWALD.

1118 PM     TSTM WND DMG     2 E LAWRENCEBURG        35.25N 87.30W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            POWER POLES DOWN JUST EAST OF LAWRENCEBURG.

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1120 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1122 PM     HAIL             LAWRENCEBURG            35.25N 87.34W
05/25/2011  E1.00 INCH       LAWRENCE           TN   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED NEAR LAWRENCEBURG.

1125 PM     TSTM WND DMG     PORTLAND                36.59N 86.52W
05/25/2011                   SUMNER             TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES IN PORTLAND.

1125 PM     TSTM WND DMG     1 E HOHENWALD           35.55N 87.54W
05/25/2011                   LEWIS              TN   AMATEUR RADIO

            TREES DOWN ON CARS AND POWER OUTAGES. HOWARD SWITCH AND
            MEMORIAL ROAD INTERSECTION.

1130 PM     HAIL             5 S LAWRENCEBURG        35.17N 87.34W
05/25/2011  E0.50 INCH       LAWRENCE           TN   EMERGENCY MNGR

            DIME SIZE HAIL REPORTED IN LEOMA.

1134 PM     TSTM WND DMG     8 NW ETHRIDGE           35.40N 87.40W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            TREE DOWN ON HOUSE.

1138 PM     FUNNEL CLOUD     FRANKLIN                35.93N 86.84W
05/25/2011                   WILLIAMSON         TN   AMATEUR RADIO

            FUNNEL CLOUD REPORTED IN FRANKLIN.

1140 PM     TSTM WND DMG     LAWRENCEBURG            35.25N 87.34W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            TREES DOWN BLOCKING HWY 64 WEST

1140 PM     TSTM WND DMG     6 SW LAWRENCEBURG       35.18N 87.41W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            MOBILE HOME TURNED OVER. PERSON TRAPPED INSIDE.

1140 PM     TSTM WND DMG     MOUNT PLEASANT          35.55N 87.19W
05/25/2011                   MAURY              TN   LAW ENFORCEMENT

            TREES DOWN BLOCKING HWY 43 NEAR CITY.

1142 PM     TSTM WND GST     4 NW LEBANON            36.25N 86.37W
05/25/2011  E50.00 MPH       WILSON             TN   NWS EMPLOYEE

            WIND GUST OF 50 MPH REPORTED NEAR LEBANON.

1150 PM     TSTM WND GST     3 S FRANKLIN            35.89N 86.84W
05/25/2011  M50.00 MPH       WILLIAMSON         TN   AMATEUR RADIO

            LEWISBURG PIKE/GREEN VALLEY COMMUNITY.

1150 PM     TSTM WND DMG     HENDERSONVILLE          36.29N 86.60W
05/25/2011                   SUMNER             TN   EMERGENCY MNGR

            TREES DOWN AND DAMAGE TO COMMERCIAL BUILDING. DOOR BLOWN
            IN.

1150 PM     TSTM WND DMG     6 SW LAWRENCEBURG       35.18N 87.41W
05/25/2011                   LAWRENCE           TN   EMERGENCY MNGR

            ROOF BLOWN OFF HOME IN GANDY COMMUNITY.

1200 AM     TSTM WND GST     1 E NASHVILLE           36.17N 86.77W
05/26/2011  E50.00 MPH       DAVIDSON           TN   AMATEUR RADIO

            NUMEROUS REPORTS OF SMALL HAIL AND WIND GUST OF 50 MPH
            ACROSS COUNTY. PUBLIC REPORTED FUNNEL AT OLD HICKORY BLVD
            AND LEBANON PIKE INTERSECTION.

1200 AM     TSTM WND GST     1 E NASHVILLE           36.17N 86.77W
05/26/2011  E50.00 MPH       DAVIDSON           TN   AMATEUR RADIO

            NUMBEROUS REPORTS OF SMALL HAIL AND WIND GUSTS TO 50 MPH
            ACROSS COUNTY.

1200 AM     TSTM WND DMG     6 N ETHRIDGE            35.41N 87.30W
05/26/2011                   LAWRENCE           TN   AMATEUR RADIO

            TREE DOWN ON HOUSE. NEW PROSPECT COMMUNITY.

1210 AM     TSTM WND DMG     COLUMBIA                35.62N 87.05W
05/26/2011                   MAURY              TN   AMATEUR RADIO

            TREES DOWN ON CARPORT. HWY 91 AND US 31.

1210 AM     FUNNEL CLOUD     MURFREESBORO            35.85N 86.39W
05/26/2011                   RUTHERFORD         TN   LAW ENFORCEMENT

            POLICE DEPARTMENT REPORT.

1215 AM     HAIL             SHELBYVILLE             35.49N 86.45W
05/26/2011  E1.00 INCH       BEDFORD            TN   TRAINED SPOTTER

1220 AM     TSTM WND DMG     SMYRNA                  35.98N 86.52W
05/26/2011                   RUTHERFORD         TN   EMERGENCY MNGR

            REPORTS OF TREES AND POWER LINES DOWN IN PARTS OF SMYRNA
            AND LAVERGNE.

1220 AM     TSTM WND GST     MURFREESBORO            35.85N 86.39W
05/26/2011  E60.00 MPH       RUTHERFORD         TN   PUBLIC

1225 AM     TORNADO          2 W MURFREESBORO        35.85N 86.43W
05/26/2011                   RUTHERFORD         TN   LAW ENFORCEMENT

            POSSIBLE TORNADO NEAR MURFREESBORO.

1231 AM     TSTM WND DMG     MURFREESBORO            35.85N 86.39W
05/26/2011                   RUTHERFORD         TN   FIRE DEPT/RESCUE

            LARGE TREE DOWN AT BURNT KNOB ROAD AND BLACKMAN ROAD.

1231 AM     TSTM WND GST     4 NW LEBANON            36.25N 86.37W
05/26/2011  E60.00 MPH       WILSON             TN   NWS EMPLOYEE

            REPORTED THUNDERSTORM WIND GUST TO 60 MPH.

1236 AM     LIGHTNING        LAWRENCEBURG            35.25N 87.34W
05/26/2011                   LAWRENCE           TN   EMERGENCY MNGR

            EMS EMPLOYEE STRUCK BY LIGHTNING.

&&

JLM
Local storm report, May 26, 12:45 AM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1245 AM CDT THU MAY 26 2011

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

1230 AM     TSTM WND DMG     LAWRENCEBURG            35.25N 87.34W
05/26/2011                   LAWRENCE           TN   EMERGENCY MNGR

            STATE ROUTE 20 IN NORTHERN PART OF COUNTY CLOSED. LARGE
            TREE ON POWER LINE.

&&

04
Local storm report, May 26, 12:47 AM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1247 AM CDT THU MAY 26 2011

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

1230 AM     HAIL             SMYRNA                  35.98N 86.52W
05/26/2011  E1.00 INCH       RUTHERFORD         TN   PUBLIC

&&

04
Local storm report, May 26, 12:52 AM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1252 AM CDT THU MAY 26 2011

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

1245 AM     TORNADO          2 SE MURFREESBORO       35.83N 86.37W
05/26/2011                   RUTHERFORD         TN   EMERGENCY MNGR

            POSSIBLE TORNADO JUST SOUTHEAST OF MURFREESBORO. HOUSES
            DAMAGED. RESIDENTS TRAPPED INSIDE.

&&

JLM
Local storm report, May 26, 12:53 AM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1253 AM CDT THU MAY 26 2011

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

1250 AM     TSTM WND DMG     5 N MANCHESTER          35.54N 86.08W
05/26/2011                   COFFEE             TN   EMERGENCY MNGR

            TREES DOWN NORTHERN PART OF COUNTY...FREDONIA ROAD.

&&

04

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 9:02 PM CDTSevere Thunderstorm WarningOHXStewart28 min
May 25, 9:08 PM CDTSevere Thunderstorm WarningOHXBenton37 min
May 25, 9:20 PM CDTTornado WarningOHXStewart25 min
May 25, 9:33 PM CDTSevere Thunderstorm WarningOHXBenton, Houston, Humphreys, Stewart42 min
May 25, 9:55 PM CDTSevere Thunderstorm WarningOHXCheatham, Dickson, Houston, Humphreys, Montgomery, Stewart35 min
May 25, 9:57 PM CDTSevere Thunderstorm WarningOHXHickman, Humphreys, Lewis, Perry33 min
May 25, 10:16 PM CDTSevere Thunderstorm WarningOHXDickson, Hickman, Humphreys, Lewis, Perry29 min
May 25, 10:27 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Hickman, Montgomery, Robertson and 1 more33 min
May 25, 10:30 PM CDTSevere Thunderstorm WarningOHXHickman, Lewis, Maury, Perry, Williamson30 min
May 25, 10:46 PM CDTSevere Thunderstorm WarningOHXLewis, Perry, Wayne46 min
May 25, 10:48 PM CDTSevere Thunderstorm WarningOHXDavidson, Robertson, Sumner27 min
May 25, 11:00 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Hickman, Maury, Sumner and 2 more45 min
May 25, 11:05 PM CDTSevere Thunderstorm WarningOHXHickman, Lewis, Perry25 min
May 25, 11:11 PM CDTSevere Thunderstorm WarningOHXDavidson, Macon, Sumner, Trousdale34 min
May 25, 11:14 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence, Lewis, Maury, Wayne31 min
May 25, 11:21 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence24 min
May 25, 11:38 PM CDTSevere Thunderstorm WarningOHXHickman, Marshall, Maury, Rutherford, Williamson22 min
May 25, 11:38 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Macon, Sumner, Trousdale, Williamson and 1 more37 min
May 25, 11:43 PM CDTSevere Thunderstorm WarningOHXDavidson, Maury, Williamson, Wilson47 min
May 25, 11:46 PM CDTSevere Thunderstorm WarningOHXGiles, Lawrence, Marshall, Maury29 min
May 25, 11:50 PM CDTSevere Thunderstorm WarningOHXGiles, Marshall25 min
May 25, 11:55 PM CDTSevere Thunderstorm WarningOHXMarshall, Maury, Rutherford, Williamson30 min
May 26, 12:09 AM CDTSevere Thunderstorm WarningOHXBedford, Cannon, Coffee, Marshall, Rutherford36 min
May 26, 12:11 AM CDTSevere Thunderstorm WarningOHXClay, Davidson, Jackson, Macon, Rutherford, Smith and 4 more34 min
May 26, 12:34 AM CDTSevere Thunderstorm WarningOHXCannon, DeKalb, Rutherford26 min
May 26, 12:42 AM CDTSevere Thunderstorm WarningOHXClay, Jackson, Macon, Smith, Trousdale, Wilson33 min
May 26, 1:17 AM CDTSevere Thunderstorm WarningOHXJackson, Overton, Putnam28 min
May 26, 1:37 AM CDTSevere Thunderstorm WarningOHXClay, Fentress, Overton, Pickett, Putnam38 min
May 26, 8:38 AM CDTSevere Thunderstorm WarningOHXBedford, Coffee27 min
May 26, 8:51 AM CDTTornado WarningOHXCoffee24 min
May 26, 9:03 AM CDTSevere Thunderstorm WarningOHXCoffee, Warren27 min
May 26, 9:11 AM CDTTornado WarningOHXCoffee, Warren34 min
May 26, 1:39 PM CDTSevere Thunderstorm WarningOHXClay, Macon, Trousdale36 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2011Every severe thunderstorm warning in 2011

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.