Alert archive / Tennessee / Frost Advisories in 2012
Frost Advisory 2, NWS Memphis, TN
NWS Memphis, TN issued this frost advisory at Apr 22, 2012, 4:04 AM CDT for 11 counties in Tennessee. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 22, 2012, 4:04 AM CDT (09:04 UTC)
- Expired
- Apr 22, 2012, 8:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Memphis, TN
Counties Carroll County, TN, Chester County, TN, Decatur County, TN, Gibson County, TN, Hardin County, TN, Henderson County, TN, Henry County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 128 km from the middle of the area, began a volume at 09:06 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
Little Rock, AR (KLZK), launched 00:00Z, 9.1 hours before the alert went out and 164 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
- 2022 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
785 WWUS74 KMEG 220904 NPWMEG URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEMPHIS TN 404 AM CDT SUN APR 22 2012 ...FROST ACROSS PORTIONS OF WEST TENNESSEE THIS MORNING... .CLEAR SKIES AND CALM WINDS HAVE ALLOWED TEMPERATURES TO FALL INTO THE LOWER AND MID 30S ACROSS PORTIONS OF WEST TENNESSEE THIS MORNING. THIS WILL RESULT IN AREAS OF FROST UNTIL AN HOUR OR TWO AFTER SUNRISE. THE AFFECTED AREA IS ALONG AND EAST OF A LINE FROM AROUND UNION CITY TO JACKSON TO SAVANNAH. TNZ002>004-020-021-052>055-091-092-221300- /O.NEW.KMEG.FR.Y.0002.120422T0904Z-120422T1300Z/ OBION-WEAKLEY-HENRY-GIBSON-CARROLL-MADISON-CHESTER-HENDERSON- DECATUR-MCNAIRY-HARDIN- INCLUDING THE CITIES OF...UNION CITY...MARTIN...DRESDEN...PARIS... HUMBOLDT...MILAN...HUNTINGDON...JACKSON...LEXINGTON...SAVANNAH 404 AM CDT SUN APR 22 2012 ...FROST ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING... THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM CDT THIS MORNING. * TEMPERATURE/FROST COVERAGE...AREAS OF FROST CAN BE EXPECTED POSSIBLY WIDESPREAD FROST IN THE COLDEST LOCATIONS. LOW TEMPERATURES WILL RANGE BETWEEN 33 AND 36 DEGREES. * TIMING...UNTIL 8 AM. * IMPACTS...TENDER VEGETATION THAT HAS BEEN RECENTLY PLANTED MAY BE DAMAGED OR KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN DUE TO THE FROST. NEW GROWTH OR BLOOMS MAY ALSO BE DAMAGED OR KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ JCL
2 follow-up statements
785 WWUS74 KMEG 220951 NPWMEG URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEMPHIS TN 451 AM CDT SUN APR 22 2012 ...FROST ACROSS PORTIONS OF WEST TENNESSEE THIS MORNING... .CLEAR SKIES AND CALM WINDS HAVE ALLOWED TEMPERATURES TO FALL INTO THE LOWER AND MID 30S ACROSS PORTIONS OF WEST TENNESSEE THIS MORNING. THIS WILL RESULT IN AREAS OF FROST UNTIL AN HOUR OR TWO AFTER SUNRISE. THE AFFECTED AREA IS ALONG AND EAST OF A LINE FROM AROUND UNION CITY TO JACKSON TO SELMER. TNZ002>004-020-021-052>055-091-092-221300- /O.CON.KMEG.FR.Y.0002.000000T0000Z-120422T1300Z/ OBION-WEAKLEY-HENRY-GIBSON-CARROLL-MADISON-CHESTER-HENDERSON- DECATUR-MCNAIRY-HARDIN- INCLUDING THE CITIES OF...UNION CITY...MARTIN...DRESDEN...PARIS... HUMBOLDT...MILAN...HUNTINGDON...JACKSON...LEXINGTON...SAVANNAH 451 AM CDT SUN APR 22 2012 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * TEMPERATURE/FROST COVERAGE...AREAS OF FROST CAN BE EXPECTED POSSIBLY WIDESPREAD FROST IN THE COLDEST LOCATIONS. LOW TEMPERATURES WILL RANGE BETWEEN 33 AND 36 DEGREES. * TIMING...UNTIL 8 AM. * IMPACTS...TENDER VEGETATION THAT HAS BEEN RECENTLY PLANTED MAY BE DAMAGED OR KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN DUE TO THE FROST. NEW GROWTH OR BLOOMS MAY ALSO BE DAMAGED OR KILLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ JCL
818 WWUS74 KMEG 221319 NPWMEG URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEMPHIS TN 819 AM CDT SUN APR 22 2012 TNZ002>004-020-021-052>055-091-092-221430- /O.EXP.KMEG.FR.Y.0002.000000T0000Z-120422T1300Z/ OBION-WEAKLEY-HENRY-GIBSON-CARROLL-MADISON-CHESTER-HENDERSON- DECATUR-MCNAIRY-HARDIN- INCLUDING THE CITIES OF...UNION CITY...MARTIN...DRESDEN...PARIS... HUMBOLDT...MILAN...HUNTINGDON...JACKSON...LEXINGTON...SAVANNAH 819 AM CDT SUN APR 22 2012 ...FROST ADVISORY HAS EXPIRED... TEMPERATURES HAVE WARMED INTO THE 40S AND THE THREAT OF FROST HAS ENDED. $$ SJM
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 1:16 PM CDT | Wind Advisory | MEG | Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more | 6 hr |
Nearby
Frost Advisories in Tennessee, 2012Every frost advisory in 2012
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.