Alert archive / Tennessee / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 123, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jun 29, 2007, 1:09 PM CDT for Henry County, Tennessee. It was in force for 33 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, 2007, 1:09 PM CDT (18:09 UTC)
- Expired
- Jun 29, 2007, 1:42 PM CDT
- In force
- 33 min
- Issued by
- NWS Memphis, TN
- Area
- Counties, with a storm outline in the text
County Henry County, TN
The radar
The Paducah radar (KPAH), 92 km from the middle of the area, began a volume at 18:10 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 12:00Z, 6.2 hours before the alert went out and 154 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
- 573 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1078 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 10:23 AM CDT, 2 hours 46 minutes earlier.
Area forecast discussion, Jun 29, 10:23 AM CDT, 2 hours 46 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEMPHIS TN 1023 AM CDT FRI JUN 29 2007 .UPDATE... ANOTHER WARM DAY ON TAP FOR THE MIDSOUTH TODAY. TEMPERATURES ARE CURRENTLY RUNNING AT LEAST 2 TO 3 DEGREES WARMER IF NOT MORE THAN THIS TIME YESTERDAY. THE TEMPERATURE HAS ALREADY HIT THE 90 DEGREE MARK IN MEMPHIS AND TUPELO WITH OTHER LOCATIONS SITTING IN THE MID TO UPPER 80S. CU DEVELOPMENT HAS BEGUN AND WITH A COLD FRONT SINKING INTO NORTHERN PORTIONS OF THE CWA THIS AFTERNOON...EXPECT IT WILL ONLY BE A MATTER OF TIME BEFORE SCATTERED SHOWERS AND THUNDERSTORMS BEGIN TO POP. SINCE TEMPERATURES ARE WARMER THAN PREVIOUS DAYS WILL BUMP UP HIGHS SLIGHTLY AS CLOUDS FROM SHOWER AND THUNDERSTORM DEVELOPMENT WILL BEGIN TO HINDER CONTINUE WARM-UP AS THE AFTERNOON PROGRESSES. EXPECT HIGHS TO REACH WELL INTO THE MID 90S MAYBE A FEW PLACES MAY REACH THE UPPER 90S. REST OF FORECAST LOOKS GOOD. UPDATE WILL BE OUT SHORTLY. && .PREV DISCUSSION... /ISSUED 342 AM CDT FRI JUN 29 2007/ DISCUSSION... CURRENTLY...SKIES ARE MOSTLY CLEAR ACROSS THE MID SOUTH THIS MORNING WITH TEMPS IN THE LOWER AND MID 70S. HUMID CONDITIONS CONTINUE WITH DEWPOINTS AROUND 70. MOST OF THE SHOWER/TSTM ACTIVITY THIS MORNING IS OCCURRING INVOF A SLOW MOVING COLD FRONT LOCATED ACROSS SOUTHERN MISSOURI INTO THE OHIO VALLEY. TODAY...LOWERED POPS SLIGHTLY ACROSS THE FORECAST AREA AS UPPER RIDGE CONTINUES TO HOLD ON ACROSS THE LOWER MISSISSIPPI VALLEY. THE MOIST AND MODERATELY UNSTABLE ACROSS THE REGION WILL CONTINUE WITH SCATTERED TSTMS DEVELOPING THIS AFTERNOON AS TEMPS CLIMB INTO THE 90S. LIKE PREVIOUS AFTERNOONS SOME STORMS COULD HAVE GUSTY WINDS AND SMALL HAIL ALONG WITH VERY HEAVY RAIN. THE COLD FRONT WILL SLOWLY SAG SOUTHWARD THROUGH THE DAY TO AROUND THE KY/TN STATE LINE SO WENT WITH HIGHER POPS ACROSS NORTHERN SECTIONS OF THE FORECAST AREA. TONIGHT...ANOTHER WARM AND MUGGY NIGHT ON TAP. WILL CONTINUE POPS OVERNIGHT DUE TO THE PRESENCE OF THE WEAK SURFACE FRONT ACROSS THE VERY NORTHERN SECTIONS OF THE AREA...THOUGH MOST OF THE ACTIVITY WILL PROBABLY OCCUR DURING THE EVENING BEFORE DISSIPATING. SATURDAY...THE UPPER RIDGE WEAKENS SLIGHTLY AS A MID LEVEL SHORTWAVE SAGS SOUTHWARD INTO THE MID SOUTH ALONG WITH THE WEAK COLD FRONT. SATURDAY PROBABLY REPRESENTS THE BEST CHANCE FOR RAIN ACROSS THE MID SOUTH. MOISTURE POOLING ACROSS THE AREA INVOF THE FRONT WILL PUSH PRECIP H20 VALUES TO OVER 2 INCHES. THIS DEEP MOISTURE COMBINED WITH A LITTLE MORE INSTABILITY SHOULD RESULT IN A GOOD DEAL OF TSTM DEVELOPMENT. EXPECT 40-50 MPH WINDS...SMALL HAIL AND VERY HEAVY RAIN WITH ANY STORMS. SATURDAY NIGHT THROUGH SUNDAY NIGHT...THE WEAK COLD FRONT AND MID LEVEL SHORTWAVE WILL SLOWLY PUSH THROUGH REGION DURING THIS TIME FRAME WITH SLOWLY DECREASING CHANCES FOR PRECIP. CLEARING IS EXPECTED ACROSS MOST AREAS BY MONDAY MORNING. MONDAY THROUGH THURSDAY...A DRIER AIRMASS WITH LOWER HUMIDITIES WILL PUSH INTO THE MID SOUTH FOR THE START OF THE WORK WEEK. BY WEDNESDAY HIGH PRESSURE WILL SLIP OFF TO THE EAST RESULTING IN A RETURN TO MORE HUMID CONDITIONS. BY THURSDAY ANOTHER FRONT APPROACHES THE AREA WITH A CHANCE FOR RAIN. && && .MEG WATCHES/WARNINGS/ADVISORIES... AR...NONE. MO...NONE. MS...NONE. TN...NONE. && KRM
In the hours before
Special weather statement, Jun 29, 12:20 PM CDT, 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1220 PM CDT FRI JUN 29 2007 ARZ035-048-291800- CROSS AR-ST. FRANCIS AR- 1220 PM CDT FRI JUN 29 2007 THIS SIGNIFICANT WEATHER ALERT IS FOR...SOUTHWESTERN CROSS AND WESTERN ST. FRANCIS COUNTIES. A STRONG THUNDERSTORM PRODUCING PEA TO DIME SIZE HAIL AND 40 TO 50 MPH WINDS WAS LOCATED 11 MILES WEST OF CALDWELL AT 1220 PM CDT... MOVING NORTHEAST AT 10 MPH. PEOPLE IN CROSS AND ST. FRANCIS COUNTIES...INCLUDING THE CITY OF WYNNE...SHOULD MONITOR THIS STORM CLOSELY. THIS SIGNIFICANT WEATHER ALERT IS IN EFFECT UNTIL 100 PM CDT.
Special weather statement, Jun 29, 12:34 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1234 PM CDT FRI JUN 29 2007 ARZ008-291815- RANDOLPH AR- 1234 PM CDT FRI JUN 29 2007 THIS SIGNIFICANT WEATHER ALERT IS FOR...RANDOLPH COUNTY. STRONG THUNDERSTORMS PRODUCING PEA TO DIME SIZE HAIL AND 45 TO 55 MPH WINDS WERE LOCATED 5 MILES SOUTHWEST OF ATTICA AT 1234 PM CDT... MOVING NORTHEAST AT 5 MPH. PEOPLE IN RANDOLPH COUNTY...INCLUDING THE CITY OF POCAHONTAS...SHOULD MONITOR THIS STORM CLOSELY..
Local storm report, Jun 29, 12:41 PM CDT, 28 minutes before
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</html>Special weather statement, Jun 29, 12:44 PM CDT, 25 minutes before
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</html>Special weather statement, Jun 29, 12:45 PM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1245 PM CDT FRI JUN 29 2007 ARZ017-291845- LAWRENCE AR- 1245 PM CDT FRI JUN 29 2007 THIS SIGNIFICANT WEATHER ALERT IS FOR...LAWRENCE COUNTY. A LINE OF STRONG THUNDERSTORMS PRODUCING PEA TO DIME SIZE HAIL AND 45 TO 55 MPH WINDS WERE ENTERING WESTERN LAWRENCE COUNTY AT 1245 PM. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 15 MPH. PEOPLE IN LAWRENCE COUNTY...INCLUDING THE CITY OF BLACK ROCK...SHOULD MONITOR THIS STORM CLOSELY. THIS SIGNIFICANT WEATHER ALERT IS IN EFFECT UNTIL 145 PM CDT.
Special weather statement, Jun 29, 12:58 PM CDT, 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1258 PM CDT FRI JUN 29 2007 ARZ035-048-291845- CROSS AR-ST. FRANCIS AR- 1258 PM CDT FRI JUN 29 2007 THIS SIGNIFICANT WEATHER ALERT IS FOR...CROSS AND ST. FRANCIS COUNTIES. THUNDERSTORMS PRODUCING PEA TO DIME SIZE HAIL AND 40 TO 50 MPH WINDS WERE LOCATED OVER COLT AT 1258 PM CDT...MOVING EAST AT 20 MPH. PEOPLE IN CROSS AND ST. FRANCIS COUNTIES...INCLUDING THE CITIES OF FORREST CITY...MADISON AND WYNNE...SHOULD MONITOR THESE STORMS CLOSELY. THIS SIGNIFICANT WEATHER ALERT IS IN EFFECT UNTIL 145 PM CDT.
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 4:54 PM CDT | Severe Thunderstorm Warning | MEG | Crockett, Gibson | 17 min |
| Jun 29, 2:44 PM CDT | Severe Thunderstorm Warning | MEG | Craighead | 31 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.