Alert archive / Ohio / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 78, NWS Charleston, WV
NWS Charleston, WV issued this severe thunderstorm warning at Jul 15, 2007, 4:49 PM EDT for Athens County, Ohio. It was in force for 26 min. 1 report 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
- Jul 15, 2007, 4:49 PM EDT (20:49 UTC)
- Expired
- Jul 15, 2007, 5:15 PM EDT
- In force
- 26 min
- Issued by
- NWS Charleston, WV
- Area
- Counties, with a storm outline in the text
County Athens County, OH
The radar
The Charleston,WV radar (KRLX), 114 km from the middle of the area, began a volume at 20:51 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 |
|---|---|---|---|
| Jul 15, 5:05 PM EDT | TSTM WND DMG | Athens, OH | TREES DOWN IN ATHENS AND BETWEEN ATHENS AND CHAUNCEY. |
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 one storm report to this severe thunderstorm warning; the first came 16 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 nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.8 hours before the alert went out and 147 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.
- Mixed-layer CAPE
- 175 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1215 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KRLX 152051 SVRRLX OHC009-152115- /O.NEW.KRLX.SV.W.0078.070715T2049Z-070715T2115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHARLESTON WV 449 PM EDT SUN JUL 15 2007 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ATHENS COUNTY IN SOUTHEAST OHIO... * UNTIL 515 PM EDT * AT 446 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ALBANY...AND MOVING EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ATHENS BY 455 PM EDT... REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. LAT...LON 3932 8231 3915 8222 3926 8178 3944 8187 $$ 10
2 follow-up statements
000 WWUS51 KRLX 152102 SVSRLX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 502 PM EDT SUN JUL 15 2007 OHC009-152115- /O.CON.KRLX.SV.W.0078.000000T0000Z-070715T2115Z/ ATHENS OH- 502 PM EDT SUN JUL 15 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR ATHENS COUNTY... AT 501 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ATHENS...MOVING EAST AT 35 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... 9 MILES SOUTH OF AMESVILLE BY 510 PM EDT... IN ADDITION TO DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. LAT...LON 3932 8231 3915 8222 3926 8178 3944 8187 $$ 15
000 WWUS51 KRLX 152115 SVSRLX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 515 PM EDT SUN JUL 15 2007 OHC009-152125- /O.EXP.KRLX.SV.W.0078.000000T0000Z-070715T2115Z/ ATHENS OH- 515 PM EDT SUN JUL 15 2007 ...THE SEVERE THUNDERSTORM WARNING FOR ATHENS COUNTY EXPIRES AT 515 PM EDT... THE STORM THAT PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS AND NO LONGER POSES A SEVERE WEATHER THREAT...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER OTHER WEAKER THUNDERSTORMS IN THE AREA MAY PRODUCE GUSTY WINDS. PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. LAT...LON 3932 8231 3915 8222 3926 8178 3944 8187 $$ 15
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 Charleston, WV wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 15, 3:50 PM EDT, 59 minutes earlier.
Area forecast discussion, Jul 15, 3:50 PM EDT, 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON WV 350 PM EDT SUN JUL 15 2007 .SYNOPSIS... A COLD FRONT WILL MOVE INTO THE AREA FROM THE NORTHWEST THIS AFTERNOON...BEFORE DISSOLVING OVER THE AREA TONIGHT. A BUSY ZONAL FLOW WILL ALLOW PERIODIC CHANCES OF CONVECTION THROUGH THE WORKWEEK. && .NEAR TERM /THROUGH MONDAY NIGHT/... THUNDERSTORMS HAVE FORMED ALONG AND AHEAD OF COLD FRONT...WHICH AS OF 19Z WAS JUST TOUCHING PERRY CO. OHIO. THE FRONT IS NEARLY PARALLEL TO UPPER LEVEL FLOW...AND WILL SLOWLY SINK OVER THE NORTHERN TO CENTRAL ZONES TONIGHT. IN ADDITION TO SCATTERED THUNDERSTORMS DEVELOPING AHEAD OF THE FRONT...SMALL BUT VIGOROUS THUNDERSTORM COMPLEX OVER SOUTHERN OHIO WILL MOVE EASTWARD AND BE STRONG ENOUGH TO SLIDE AT LEAST INTO CENTRAL WEST VIRGINIA BEFORE WEAKENING BY EARLY EVENING AS HEATING ABATES. SHEAR PROFILE SUGGESTS SOME POTENTIAL FOR SEVERE WIND GUSTS...THOUGH HAIL POSSIBLE TOO. SEVERE THREAT OVERALL SHOULD BE ISOLATED...AND PERHAPS LIMITED TO ONLY THE PATH OF THE SMALL COMPLEX COMING IN FROM SOUTHERN OHIO. FRONT DISSOLVES OVER THE AREA OVERNIGHT...AND WITH LOSS OF HEATING...ALL CONVECTIVE ACTIVITY WILL WIND DOWN BY LATE EVENING. NO SOLID FEATURES FOR CONVECTION ON MONDAY...HOWEVER...REMAINS OF FRONT WILL SIT OVER THE CWA. SLIGHTLY UNSTABLE AIR MASS WITH LITTLE OR NO CAP WILL ALLOW ISOLATED DIURNAL CONVECTION IN THE LOWLANDS AND SCATTERED THUNDERSTORMS IN THE MOUNTAINS. LOW TEMPS TONIGHT BASED MAINLY ON MET GUIDANCE...AND HIGHS MONDAY ON MAV GUIDANCE. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... THE CWA WILL BE LOCATED ON THE SOUTHERN EDGE OF THE WESTERLY FLOW TUESDAY AND WEDNESDAY. FORECAST CHALLENGE IS DETERMINING THE TIMING OF DISTURBANCES ALONG THE FLOW AND RESULTING CONVECTION. THE NAM IS THE CLEAR OUTLIER OF THE MODELS BY SENDING A COLD FRONT RIGHT THROUGH THE CWA ON TUESDAY. ALL OTHER GUIDANCE SUGGESTS LAYING THE FRONT OUT STATIONARY ALONG THE NORTHERN CWA...THUS WILL LEAN TOWARDS THAT CONSENSUS TYPE OF SOLUTION. WITH THE FRONT PARKED IN OUR VICINITY...AND SHORTWAVES RIDING THROUGH THE WESTERLIES...CHANCE POPS LOOK WARRANTED THROUGH THE PERIOD. EVEN DURING THE NIGHT TIMES...WE WILL BE THE EVENTUAL DESTINATION FOR ANY NOCTURNAL MESOSCALE COMPLEXES THAT DEVELOP UPSTREAM. THE BEST SET UP FOR CONVECTION LOOKS TO BE WEDNESDAY...WHEN THE WESTERLIES/SHORTWAVE PARADE WILL BE AT THE SOUTHERNMOST EXTENT. HOWEVER...I NEVER BRING POPS ABOVE 50 PERCENT IN ANY SINGLE PERIOD...BECAUSE OF UNCERTAINTY IN BOTH TIMING AND PLACEMENT OF THE WAVES. POPS IN GENERAL ARE A BIT HIGHER IN THE NORTHERN ZONES...CLOSER TO PROXIMITY OF THE STATIONARY FRONT. && .LONG TERM /THURSDAY THROUGH SUNDAY/... THERE IS STILL PLENTY OF SPREAD IN THE MODELS...BUT A MORE CONSENSUS HAS FORMED TOWARD A SHARPENING EAST COAST TROUGH BY NEXT WEEKEND...RESULTING EVENTUALLY IN COOLER TEMPERATURES AND BUILDING HIGH PRESSURE BY THE END OF THE PERIOD. UP UNTIL THAT POINT HOWEVER...THE CWA REMAINS ON THE SOUTHERN EDGE OF THE SHORTWAVE PARADE THAT WILL RIDE THROUGH THE WESTERLIES. WAVES WILL RUN ALONG NEARLY STATIONARY FRONT. AT THIS TIME...LOOKS LIKE THE FRONT WILL SHIFT SLIGHTLY NORTHWARD DURING THE THURSDAY AFTERNOON TO FRIDAY MORNING PERIOD...WHICH WILL FOCUS CONVECTION FARTHER NORTH AND MAY CAUSE A LULL IN ACTIVITY. THE QUESTION THEN BECOMES WHEN THE NEXT DIGGING WAVE WILL SEND A FRONT AND BETTER THUNDER CHANCES BACK SOUTH ACROSS OUR AREA. DESPITE OVERALL BIG PICTURE GETTING SOME SORT OF CONSENSUS...DETAILS OF THE PATTERN BECOME PROGRESSIVELY MORE MUDDLED LATER IN THE PERIOD. 12Z GFS IS ALREADY DELAYING THE FINAL DIGGING TROUGH BY ALMOST 24 HOURS...BUT FOR NOW PREFER THE TIMING OFFERED BY 00Z ECMWF AND PREVIOUS GFS RUNS...WITH THE DIGGING TROUGH/FRONTAL PASSAGE LATE FRIDAY AFTERNOON INTO FRIDAY NIGHT. EVEN SO...I ACCEPTED HIGHEST POPS IN THIS TIME PERIOD OF ONLY IN THE LOW 40S AS SUGGESTED BY HPC...GIVEN TIMING UNCERTAINTIES. WITH UNUSUAL /FOR THIS TIME OF YEAR/ AMPLIFIED NATURE OF THE PATTERN...IT MAY BE SLOW TO PROGRESS. && .AVIATION /19Z SUNDAY THROUGH FRIDAY/... 18Z SUNDAY THROUGH 18Z MONDAY... UPDATED TO INCLUDE MORE WIDESPREAD THUNDERSTORMS ACROSS THE AREA THIS AFTERNOON AND IN THE TAFS EXCEPT FOR BKW. STILL VFR OUTSIDE THUNDERSTORMS. TONIGHT...WILL SEE A RATHER QUICK END TO THE CONVECTION EARLY...BUT EXPECT GENERALLY MVFR VSBY BY 06Z IN THE SOUPY AIRMASS...AND IFR WHERE IT WILL HAVE RAINED THIS AFTERNOON...MOST LIKELY AT PKB...CKB...AND ESPECIALLY AT EKN. AVIATION OUTLOOK MONDAY AFTERNOON THROUGH THURSDAY...TSTMS ARE PSBL NEARLY EVERY DAY...WHICH COULD BRING IFR WX. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...NONE. OH...NONE. KY...NONE. VA...NONE. && SYNOPSIS...JMV NEAR TERM...JMV SHORT TERM...MDP LONG TERM...MDP AVIATION...JMV
Hazardous weather outlook, Jul 15, 3:07 AM EDT, 13 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON WV 307 AM EDT SUN JUL 15 2007 KYZ101>103-105-OHZ083>087-WVZ005>007-160715- GREENUP-CARTER-BOYD-LAWRENCE KY-JACKSON OH-VINTON-MEIGS-GALLIA- LAWRENCE OH-WAYNE-CABELL-MASON- 307 AM EDT SUN JUL 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...SOUTHEAST OHIO AND WESTERN WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT A WEAK COLD FRONT PASSES DURING THE AFTERNOON HOURS. THIS WILL LEAD TO THUNDERSTORMS...SOME OF WHICH COULD PRODUCE GUSTY WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY. OHZ066-067-075-076-VAZ003-004-WVZ008>011-013>020-024>040-046-047- 160715- PERRY-MORGAN-ATHENS-WASHINGTON-DICKENSON-BUCHANAN-JACKSON WV-WOOD- PLEASANTS-TYLER-LINCOLN-PUTNAM-KANAWHA-ROANE-WIRT-CALHOUN-RITCHIE- DODDRIDGE-MINGO-LOGAN-BOONE-CLAY-BRAXTON-GILMER-LEWIS-HARRISON- TAYLOR-MCDOWELL-WYOMING-RALEIGH-FAYETTE-NICHOLAS-WEBSTER-UPSHUR- BARBOUR-POCAHONTAS-RANDOLPH- 307 AM EDT SUN JUL 15 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OHIO...SOUTHWEST VIRGINIA AND WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 15, 2:59 PM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 259 PM EDT SUN JUL 15 2007 WVZ020-151930- DODDRIDGE WV- 255 PM EDT SUN JUL 15 2007 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... AT 255 PM EDT...A STRONG THUNDERSTORM WAS OVER WEST CENTRAL DODDRIDGE COUNTY...OR ABOUT 10 MILES NORTHEAST OF HARRISVILLE...MOVING EAST AT 30 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE... CENTER POINT...SMITHBURG...SEDALIA...CANTON AND WEST UNION. WIND GUSTS TO 45 MPH...FREQUENT LIGHTNING...AND PEA SIZE HAIL ARE ALL POSSIBLE WITH THIS STORM. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 10
Special weather statement, Jul 15, 3:26 PM EDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 326 PM EDT SUN JUL 15 2007 OHZ083-084-152000- VINTON OH-JACKSON OH- 326 PM EDT SUN JUL 15 2007 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... AT 326 PM EDT...A LINE OF STRONG THUNDERSTORMS EXTENDED FROM 8 MILES WEST OF WAVERLY TO 22 MILES WEST OF WEST PORTSMOUTH...MOVING EAST AT 45 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS LINE OF STORMS INCLUDE... PETERSBURG...CREOLA...BYER...ALLENSVILLE...WELLSTON AND MCARTHUR. WIND GUSTS TO 50 MPH...FREQUENT LIGHTNING...AND MARBLE SIZE HAIL ARE ALL POSSIBLE WITH THESE STORMS. ALSO...EXPECT 15 TO 30 MINUTES DOWNPOURS PRODUCING ONE HALF TO ONE INCH OF RAIN. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 10
Special weather statement, Jul 15, 3:38 PM EDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 338 PM EDT SUN JUL 15 2007 WVZ031-040-152015- HARRISON WV-BARBOUR WV- 338 PM EDT SUN JUL 15 2007 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... AT 338 PM EDT...A LINE OF STRONG THUNDERSTORMS EXTENDED OVER STONEWOOD...MOVING EAST AT 45 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS LINE OF STORMS INCLUDE... WOLF SUMMIT...CENTURY...WEST MILFORD...NUTTER FORT... LOST CREEK AND CLARKSBURG. WIND GUSTS TO 45 MPH...FREQUENT LIGHTNING...AND MARBLE SIZE HAIL ARE ALL POSSIBLE WITH THIS STORM. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 10
Special weather statement, Jul 15, 4:03 PM EDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 403 PM EDT SUN JUL 15 2007 WVZ031-040-152030- HARRISON WV-BARBOUR WV- 403 PM EDT SUN JUL 15 2007 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... AT 403 PM EDT...A LINE OF STRONG THUNDERSTORMS EXTENDED 9 MILES WEST OF PHILIPPI...OR ABOUT 8 MILES SOUTHEAST OF STONEWOOD...MOVING EAST AT 30 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS LINE OF STORMS INCLUDE... MOATSVILLE...CENTURY...VOLGA...GALLOWAY...NESTORVILLE AND BELINGTON. WIND GUSTS TO 45 MPH...FREQUENT LIGHTNING...AND MARBLE SIZE HAIL ARE ALL POSSIBLE WITH THIS STORM. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 10
Local storm report, Jul 15, 4:32 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
432 PM EDT SUN JUL 15 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 PM TSTM WND DMG CLARKSBURG 39.28N 80.33W
07/15/2007 HARRISON WV FIRE DEPT/RESCUE
NUMEROUS TREES DOWN, POWER OUTAGES.
0415 PM TSTM WND DMG PHILIPPI 39.15N 80.04W
07/15/2007 BARBOUR WV FIRE DEPT/RESCUE
NUMEROUS TREES DOWN IN AND NEAR PHILIPPI.
&&
CAMPBELLSpecial weather statement, Jul 15, 4:43 PM EDT, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON WV 443 PM EDT SUN JUL 15 2007 OHZ075-152115- ATHENS OH- 443 PM EDT SUN JUL 15 2007 HERE IS A SPECIAL WEATHER STATEMENT FROM THE NATIONAL WEATHER SERVICE... AT 443 PM EDT...A LINE OF STRONG THUNDERSTORMS EXTENDED OVER ALBANY...MOVING EAST AT 40 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS LINE OF STORMS INCLUDE... STROUDS RUN STATE PARK AND ATHENS. WIND GUSTS TO 45 MPH...FREQUENT LIGHTNING...AND PEA SIZE HAIL ARE ALL POSSIBLE WITH THIS STORM. PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. 10
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 3:42 PM EDT | Severe Thunderstorm Warning | RLX | Jackson | 33 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 2007Every severe thunderstorm warning in 2007
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.