Alert archive / Tennessee / Snow Advisories in 2007
Snow Advisory 6, NWS Morristown, TN
NWS Morristown, TN issued this snow advisory at Apr 7, 2007, 4:55 AM EDT for 7 counties in Tennessee. It took effect at Apr 7, 2007, 5:00 AM EDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 7, 2007, 4:55 AM EDT (08:55 UTC)
- In effect from
- Apr 7, 2007, 5:00 AM EDT
- Expired
- Apr 7, 2007, 11:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 08:54 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
Roanoke, VA (KRNK), launched 00:00Z, 8.9 hours before the alert went out and 323 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1153 m above ground
- 0-6 km bulk shear
- 101 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this snow advisory 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 snow advisory went out at Apr 7, 3:47 AM EDT, 1 hour 8 minutes earlier.
Area forecast discussion, Apr 7, 3:47 AM EDT, 1 hour 8 minutes before
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</html>Hazardous weather outlook, Apr 6, 3:55 PM EDT, 13 hours before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MORRISTOWN TN 355 PM EDT FRI APR 6 2007 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-071000- 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- 355 PM EDT (255 PM CDT) FRI APR 6 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST VIRGINIA AND EXTREME SOUTHWEST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT A FREEZE WARNING IS IN EFFECT FOR TONIGHT AND SATURDAY MORNING... WITH A HARD KILLING FREEZE EXPECTED. ADDITIONALLY...A WEAK UPPER- LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION THIS EVENING... BRINGING SOME SCATTERED LIGHT SNOWFALL. UP TO AN INCH OF SNOW IS POSSIBLE OVER THE HIGHEST ELEVATIONS OF SOUTHWEST VIRGINIA AND EAST TENNESSEE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY BELOW-FREEZING TEMPERATURES WILL BE POSSIBLE AGAIN ON SUNDAY MORNING AND MONDAY MORNING. IN ADDITION...THE COMBINATION OF LOW RELATIVE HUMIDITIES AND BREEZY WINDS ON SATURDAY AFTERNOON AND EVENING... COULD RESULT IN HIGH FIRE DANGER AND RAPID FIRE GROWTH AND SPREAD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
In the hours before
Special weather statement, Apr 7, 3:27 AM EDT, 1 hour 28 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 |
|---|---|---|---|---|
| Apr 7, 2:17 AM EDT | Red Flag Warning | MRX | 18 hr | |
| Apr 7, 11:21 AM EDT | Freeze Warning | MRX | Anderson, Bledsoe, Blount, Bradley, Campbell, Carter and 27 more | 23 hr |
Nearby
Snow Advisories in Tennessee, 2007Every snow advisory 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.