Alert archive / Tennessee / Flash Flood Warnings in 2010
Flash Flood Warning 12, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Jul 26, 2010, 1:11 PM CDT for Bledsoe County, Hamilton County, Sequatchie County, Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 26, 2010, 1:11 PM CDT (18:11 UTC)
- Expired
- Jul 26, 2010, 4:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bledsoe County, TN, Hamilton County, TN, Sequatchie County, TN
The radar
The Northeast Alabama radar (KHTX), 90 km from the middle of the area, began a volume at 18:13 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 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
- 2777 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Jul 26, 12:59 PM CDT, 12 minutes earlier.
Area forecast discussion, Jul 26, 12:59 PM CDT, 12 minutes before
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</html>Hazardous weather outlook, Jul 26, 9:56 AM CDT, 3 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 1056 AM EDT MON JUL 26 2010 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-271500- CHEROKEE-CLAY-SCOTT TN-CAMPBELL-CLAIBORNE-HANCOCK-HAWKINS- SULLIVAN-JOHNSON-MORGAN-ANDERSON-UNION-GRAINGER-HAMBLEN- NORTHWEST COCKE-COCKE SMOKY MOUNTAINS-NORTHWEST GREENE- SOUTHEAST GREENE-WASHINGTON TN-UNICOI-NORTHWEST CARTER- SOUTHEAST CARTER-ROANE-LOUDON-KNOX-JEFFERSON-NW BLOUNT- BLOUNT SMOKY MOUNTAINS-NORTH SEVIER-SEVIER SMOKY MOUNTAINS- SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE- SOUTHEAST MONROE-MARION-HAMILTON-BRADLEY-WEST POLK-EAST POLK-LEE- WISE-SCOTT-RUSSELL-WASHINGTON- 1056 AM EDT MON JUL 26 2010 /956 AM CDT MON JUL 26 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT HOT AND HUMID CONDITIONS WILL CONTINUE TODAY...ALTHOUGH HIGH TEMPERATURES SHOULD BE A FEW DEGREES COOLER THAN YESTERDAY. HEAT INDEX VALUES WILL STILL REACH NEAR 100 DEGREES AT THE LOWER ELEVATIONS AND AS HIGH AS AROUND 105 IN THE CHATTANOOGA METROPOLITAN AREA. SCATTERED THUNDERSTORMS CAN BE ALSO BE EXPECTED AGAIN...AND A FEW OF THESE COULD BECOME SEVERE WITH THE MAIN THREAT BEING DAMAGING WINDS. LOCALLY HEAVY RAIN IS POSSIBLE WITH SLOW MOVEMENT OF THUNDERSTORMS AND MAY CAUSE LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SCATTERED TO ISOLATED THUNDERSTORMS CAN BE EXPECTED AT TIMES DURING THE PERIOD...AND A FEW OF THESE COULD BECOME SEVERE...WITH THE MAIN THREATS BEING DAMAGING WINDS AND LARGE HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. TD
In the hours before
Local storm report, Jul 26, 9:59 AM CDT, 3 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1059 AM EDT MON JUL 26 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0643 PM TSTM WND DMG 7 NNE DUCKTOWN 35.13N 84.34W
07/25/2010 POLK TN UTILITY COMPANY
SEVERAL TREES AND POWERLINES DOWN IN THE FARNER AND
TURTLETOWN AREAS. REPORTED BY TRI-STATE ELECTRIC.
0730 PM TSTM WND DMG 9 WNW MURPHY 35.14N 84.17W
07/25/2010 CHEROKEE NC UTILITY COMPANY
SEVERAL TREES AND POWERLINES DOWN AROUND THE HIWASSEE DAM
AREA. REPORTED BY BLUE RIDGE MOUNTAIN ELECTRIC.
&&
JORDAN/FERRELLSpecial weather statement, Jul 26, 11:18 AM CDT, 1 hour 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1218 PM EDT MON JUL 26 2010 NCZ060-061-TNZ012>017-035>040-042-044-046-067>071-073-081>087- 098>102-270000- CHEROKEE-CLAY-SCOTT TN-CAMPBELL-CLAIBORNE-HANCOCK-HAWKINS- SULLIVAN-MORGAN-ANDERSON-UNION-GRAINGER-HAMBLEN-NORTHWEST COCKE- NORTHWEST GREENE-WASHINGTON TN-NORTHWEST CARTER-ROANE-LOUDON-KNOX- JEFFERSON-NW BLOUNT-NORTH SEVIER-SEQUATCHIE-BLEDSOE-RHEA-MEIGS- MCMINN-NORTHWEST MONROE-SOUTHEAST MONROE-MARION-HAMILTON-BRADLEY- WEST POLK-EAST POLK- INCLUDING THE CITIES OF...MURPHY...HAYESVILLE...ONEIDA... LA FOLLETTE...TAZEWELL...SNEEDVILLE...ROGERSVILLE...KINGSPORT... BRISTOL...WARTBURG...CLINTON...OAK RIDGE...MAYNARDVILLE... RUTLEDGE...MORRISTOWN...NEWPORT...GREENEVILLE...JOHNSON CITY... ELIZABETHTON...KINGSTON...LENOIR CITY...KNOXVILLE...DANDRIDGE... MARYVILLE...SEVIERVILLE...DUNLAP...PIKEVILLE...DAYTON...DECATUR... ATHENS...MADISONVILLE...COKER CREEK...JASPER...CHATTANOOGA... CLEVELAND...BENTON...DUCKTOWN 1218 PM EDT MON JUL 26 2010 /1118 AM CDT MON JUL 26 2010/ ...HOT AND HUMID CONDITIONS WILL CONTINUE TODAY... HOT AND HUMID CONDITIONS WILL CONTINUE ACROSS THE REGION TODAY. CLOUD COVER HAD INCREASED SOMEWHAT THIS MORNING BUT HAS DECREASED AGAIN. HIGH TEMPERATURES IN THE LOWER TO MID 90S COMBINED WITH DEW POINTS IN THE LOWER TO MID 70S WILL CREATE HEAT INDEX VALUES FROM 100 TO 105 DEGREES THIS AFTERNOON ACROSS MUCH OF THE EAST TENNESSEE AND THE LOWER ELEVATIONS OF EXTREME SOUTHWEST NORTH CAROLINA. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PROVIDE SOME RELIEF FROM THE HEAT LATER THIS AFTERNOON FOR SOME LOCATIONS. WHEN TEMPERATURES AND HUMIDITY COMBINE TO PRODUCE VERY HIGH HEAT INDICES...THIS HEAT CAN LEAD TO A VARIETY OF SERIOUS HEALTH PROBLEMS...SUCH AS SUNSTROKE...HEAT CRAMPS...AND HEAT EXHAUSTION WITH PROLONGED EXPOSURE OR PHYSICAL ACTIVITY. IF YOU MUST BE OUTSIDE DURING THE AFTERNOON HOURS...IT IS BEST TO TAKE FREQUENT BREAKS AND DRINK PLENTY OF WATER. IN ADDITION...WEAR LIGHT COLORED CLOTHES AND AVOID TOO MUCH SUN EXPOSURE. && FOR ADDITIONAL INFORMATION ON HEAT SAFETY TIPS...PLEASE VISIT THE NATIONAL WEATHER SERVICE'S MORRISTOWN WEBSITE AT WWW.WEATHER.GOV/MORRISTOWN/ OR WWW.SRH.NOAA.GOV/MRX/. TD
Special weather statement, Jul 26, 12:21 PM CDT, 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 121 PM EDT MON JUL 26 2010 TNZ081>083-099-261800- BLEDSOE TN-HAMILTON TN-RHEA TN-SEQUATCHIE TN- 1221 PM CDT MON JUL 26 2010 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN HAMILTON...SEQUATCHIE... BLEDSOE AND RHEA COUNTIES UNTIL 100 PM CDT/200 PM EDT/... AT 1215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES NORTHEAST OF DUNLAP...MOVING EAST AT 5 MPH. OTHER THUNDERSTORMS IN THE AREA MAY BECOME STRONG AS WELL. HAIL UP TO THE SIZE OF DIMES OR PENNIES AND WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THIS STORM WILL BE NEAR... BRAYTON AROUND 100 PM CDT. TD
Special weather statement, Jul 26, 1:07 PM CDT, 4 minutes before
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</html>Local storm report, Jul 26, 1:09 PM CDT, 2 minutes before
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 12:40 PM CDT | Severe Thunderstorm Warning | MRX | Bledsoe, Marion, Sequatchie | 50 min |
| Jul 26, 12:51 PM CDT | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Rhea, Sequatchie | 39 min |
| Jul 26, 12:56 PM CDT | Areal Flood Advisory | MRX | Anderson, Bledsoe, Hamilton, McMinn, Marion, Meigs and 4 more | 3 hr |
| Jul 26, 1:27 PM CDT | Severe Thunderstorm Warning | MRX | Hamilton, Sequatchie | 48 min |
| Jul 26, 1:50 PM CDT | Severe Thunderstorm Warning | MRX | Marion | 55 min |
| Jul 26, 2:21 PM CDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton | 39 min |
| Jul 26, 2:29 PM CDT | Areal Flood Advisory | MRX | Bradley, Hamilton | 3 hr |
| Jul 26, 3:01 PM CDT | Severe Thunderstorm Warning | MRX | Bradley, Polk | 44 min |
| Jul 26, 3:07 PM CDT | Areal Flood Advisory | MRX | Hamilton, Marion, Sequatchie | 113 min |
| Jul 26, 3:10 PM CDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton, Marion | 35 min |
| Jul 26, 3:30 PM CDT | Areal Flood Advisory | MRX | Bradley, McMinn, Monroe, Polk | 3 hr |
| Jul 26, 4:43 PM CDT | Severe Thunderstorm Warning | MRX | Cocke, Sevier | 47 min |
| Jul 26, 5:01 PM CDT | Severe Thunderstorm Warning | MRX | Greene | 44 min |
| Jul 26, 5:54 PM CDT | Severe Thunderstorm Warning | MRX | Greene, Unicoi, Washington | 51 min |
| Jul 25, 7:07 PM CDT | Areal Flood Advisory | MRX | Cherokee, Clay | 113 min |
Nearby
Flash Flood Warnings in Tennessee, 2010Every flash flood warning in 2010
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.