Heavy Rain, Possible Hail and Strong Winds…

HAZARDOUS WEATHER DISCUSSION
WEST TENNESSEE WEATHER ONLINE JACKSON TN
5:10 AM CST TUE DEC 8 2009

.SYNOPSIS…

AN INTENSE LOW PRESSURE WILL COME OUT OF THE ROCKIES TODAY AND INTENSIFY AS IT TRACKS THROUGH OKLAHOMA INTO ILLINOIS BY MIDNIGHT TONIGHT. THIS IS ALREADY DRAWING MOISTURE NORTH INTO OUR REGION AT THE TIME OF THIS WRITING AS INDICATED BY THE RADAR RETURNS JUST BEFORE 5 AM CST.  THE CONCERNS WITH THIS SYSTEM ARE HEAVY RAIN AND HAIL POTENTIAL ALONG WITH STRONG SURFACE WINDS DUE TO THE WRAPPED-UP NATURE OF THE STORM SYSTEM.

- HEAVY RAIN

CURRENT INDICATIONS ARE THAT MUCH OF THE AREA WILL SEE ONE TO TWO INCHES OF RAIN WITH THIS EVENT.  THE HEAVIEST RAINS ARE EXPECTED TO FALL THIS AFTERNOON. ONLY LOCALIZED FLOODING WOULD BE AN ISSUE ESPECIALLY IN POORLY DRAINED AREAS.

- HAIL POTENTIAL

DUE TO THE INTENSITY OF THE STORM, A STRONG JET STREAK OF 100+ KTS WILL HELP PRODUCE ELEVATED THUNDERSTORMS NORTH OF THE WARM FRONTAL BOUNDARY THAT WILL BE APPROACHING THE MISS/TENN STATE LINE LATE TODAY.  THE STORM PREDICTION CENTER NOTES THAT THERE IS AN *ISOLATED* POTENTIAL FOR HAIL TO ONE INCH IN DIAMETER.

- STRONG SURFACE WINDS

THE INTENSE PRESSURE DIFFERENCE ASSOCIATED WITH THE INTENSIFYING LOW PRESSURE MOVING INTO ILLINOIS AND THE GREAT LAKES TONIGHT AND TOMORROW WILL PRODUCE STRONG SURFACE WINDS.  AT THIS TIME IT IS EXPECTED THAT OUR AREA WILL SEE *SUSTAINED* WINDS INCREASE TO 15 MPH THIS AFTERNOON.  BY TONIGHT *SUSTAINED* WINDS OF NEAR 20 MPH WITH GUSTS TO 30 MPH WILL BE POSSIBLE OVERNIGHT TONIGHT.  THE PERIOD FOR THE STRONGEST WINDS WILL BE BETWEEN 6 AM AND NOON WEDNESDAY WHEN *SUSTAINED* WINDS OF 20-25 MPH WILL BE POSSIBLE AND GUSTS COULD REACH 40 MPH.  THE STRONG WINDS WILL DIMINISH DURING THE AFTERNOON BUT REMAIN GUSTY.

HOLMES

November 2009: Mild and Dry

MONTHLY CLIMATE REPORT
WEST TENNESSEE WEATHER ONLINE JACKSON TN
830 PM CST TUE DEC 1 2009

…NOVEMBER 2009:  MILD AND DRY…

.Temperature Data

The average temperature for November 2009 as recorded at Jackson’s McKellar-Sipes Regional Airport was 52.1º which was 1.8º above average.  The highest temperature recorded was 77º on the 7th and the lowest temperature recorded was 26º on the 27th.  The average high was 64.5º.  The average low was 39.6º.

.Precipitation Data

Rainfall was well-below average (-3.79″). Rainfall totaled 1.28″ which ranks
November 2009 as the third driest November ever recorded. Records go back to 1948.

The greatest 24-hour amount was 0.90″ from 11/29-11/30.

The highest wind gust was 29 mph on the 30th.

Below are some climate totals from other stations around Madison County:

North Jackson

Average Temperature:  52.8º
Average High Temperature:  65.9º
Average Low Temperature: 39.7º
Highest Temperature was 79º on the 8th.
Lowest Temperature was 26º on the 27th.

Total Precipitation was 1.65″
Greatest 24-hour total was 1.18″ on the 29th-30th.

UT Ag. Experiment Station

Average Temperature:  52.9º
Average High Temperature:  65.3º
Average Low Temperature: 40.4º
Highest Temperature was 78º on the 8th and 9th.
Lowest Temperature was 27º on the 27th.

Total Precipitation was 1.65″
Greatest 24-hour total was 1.16″ on the 29th-30th.

South Jackson – Bemis

Average Temperature:  51.0º
Average High Temperature:  63.9º
Average Low Temperature: 38.1º
Highest Temperature was 77º on the 7th.
Lowest Temperature was 27º on the 27th.

Total Precipitation was 1.79″
Greatest 24-hour total was 1.13″ on the 29th.

Additional data for South Jackson-Bemis can be found here.

REH

A Taste of Winter Rides in with December

(Sunday, November 29, 2009) – The first round of wintry weather could affect West TN this week.  Models are in agreement that we will be heading into a weather pattern that will offer colder air coming into the region the last half of the week.

Right now it appears a low pressure will form near the LA coast Wednesday morning and track through Columbus, MS on Wednesday Evening to West Virginia on Thursday morning.

Rain is expected to make a return to West TN on Tuesday night or Wednesday.  Cold air will pour into the area behind the low pressure that will be passing to our east and that could cause a wintry mix, mainly north of I-40.  No travel difficulties are expected where any wintry weather is experienced as the moisture is expected to be leaving quickly out of the area and ground temperatures are still in the 40s.

Additional posts will be made as needed.

Top Five (5) Driest Novembers In Jackson, TN

1949	0.73		1
1954	1.23		2
1976	1.81		3
2008	2.03		4
1956	2.07		5

NOAA: U.S. Posts Third Coolest-Highest Precipitation for October on Record

November 10, 2009

The October 2009 average temperature for the contiguous United States was the third coolest on record for that month according to NOAA’s State of the Climate report issued today. Based on data going back to 1895, the monthly National Climatic Data Center analysis is part of the suite of climate services provided by NOAA.

The average October temperature of 50.8 degrees F was 4.0 degrees F below the 20th Century average. Preliminary data also reveals this was the wettest October on record with average precipitation across the contiguous United States reaching 4.15 inches, 2.04 inches above the 1901-2000 average.

For more details click here.

Winter Awareness Week

NOAA’S NATIONAL WEATHER SERVICE SAYS:
KNOW YOUR WINTER WEATHER TERMS

NOAA’s National Weather Service urges residents to keep abreast of local forecasts and warnings and familiarize themselves with key weather terminology.

Winter Storm Warning: Issued when hazardous winter weather in the form of heavy snow, heavy freezing rain, or heavy sleet is imminent or occurring. Winter Storm Warnings are usually issued 12 to 24 hours before the event is expected to begin.

Winter Storm Watch: Alerts the public to the possibility of a blizzard, heavy snow, heavy freezing rain, or heavy sleet. Winter Storm Watches are usually issued 12 to 48 hours before the beginning of a Winter Storm.

Winter Storm Outlook: Issued prior to a Winter Storm Watch. The Outlook is given when forecasters believe winter storm conditions are possible and are usually issued 3 to 5 days in advance of a winter storm.

Blizzard Warning: Issued for sustained or gusty winds of 35 mph or more, and falling or blowing snow creating visibilities at or below ¼ mile; these conditions should persist for at least three hours.

Lake Effect Snow Warning: Issued when heavy lake effect snow is imminent or occurring.

Lake Effect Snow Advisory: Issued when accumulation of lake effect snow will cause significant inconvenience.

Wind Chill Warning: Issued when wind chill temperatures are expected to be hazardous to life within several minutes of exposure.

Wind Chill Advisory: Issued when wind chill temperatures are expected to be a significant inconvenience to life with prolonged exposure, and, if caution is not exercised, could lead to hazardous exposure.

Winter Weather Advisories: Issued for accumulations of snow, freezing rain, freezing drizzle, and sleet which will cause significant inconveniences and, if caution is not exercised, could lead to life-threatening situations.

Dense Fog Advisory: Issued when fog will reduce visibility to ¼ mile or less over a widespread area.

Snow Flurries: Light snow falling for short durations. No accumulation or light dusting is all that is expected.

Snow Showers: Snow falling at varying intensities for brief periods of time. Some accumulation is possible.

Snow Squalls: Brief, intense snow showers accompanied by strong, gusty winds. Accumulation may be significant. Snow squalls are best known in the Great Lakes region.

Blowing Snow: Wind-driven snow that reduces visibility and causes significant drifting. Blowing snow may be snow that is falling and/or loose snow on the ground picked up by the wind.

Sleet: Rain drops that freeze into ice pellets before reaching the ground. Sleet usually bounces when hitting a surface and does not stick to objects. However, it can accumulate like snow and cause a hazard to motorists.

Freezing Rain: Rain that falls onto a surface with a temperature below freezing. This causes it to freeze to surfaces, such as trees, cars, and roads, forming a coating or glaze of ice. Even small accumulations of ice can cause a significant hazard.

First Measurable Rainfall of the Month Expected Today

A Cool, Wet October 2009 – Climate Summary

MONTHLY CLIMATE SUMMARY
West Tennessee Weather Online Jackson TN
910 AM CST Mon Nov 2 2009

…A Cool, Wet October…

…TEMPERATURE DATA…

October 2009 had an average temperature of 57.6 deg at the McKellar-Sipes Regional Airport.  This was 3.5 deg below average and ties 2006 and 2001 as the 6th coolest October on record. The average high was 67.5 deg and the average low was 47.6 deg.  The highest temperature recorded was 86 deg on the 8th and the lowest was 32 on the 18th.

…PRECIPITATION DATA…

October is typically the second driest month for Jackson, however this year is has been the second wettest so far. Total rainfall was 7.35 inches.  This ranks as the third wettest October on record.  The greatest 24 hour total was on the 30th when 1.79 inches of rain fell.

…MISC. DATA…

The highest wind gust was 33 mph on the 9th.

…DATA FROM OTHER CLIMATE STATIONS IN JACKSON/MADISON COUNTY…

NORTH JACKSON

Ave. Temperature: 58.0º
Ave. Maximum: 67.7º
Ave. Minimum: 48.2º
Highest Temperature: 85º on 8th.
Lowest Temperature: 31º on 18th.

Total Precipitation:1.99″
Greatest 24-Hr. Amount: 1.99″ on the 30th

WEST JACKSON – Experiment Station
(There were two days of missing data)

Ave. Temperature:  57.8º
Ave. Maximum: 67.7º
Ave. Minimum: 47.9º
Highest Temperature: 86 º on the 8th
Lowest Temperature: 33º on the 18th

Total Precipitation: 8.04″
Greatest 24-Hr Amount: 2.00” on the 30th

SOUTH JACKSON – Bemis

Ave. Temperature:  56.6º
Ave. Maximum: 66.8º
Ave. Minimum: 46.4º
Highest Temperature: 85 º on the 8th
Lowest Temperature: 31º on the 19th

Total Precipitation: 7.35″
Greatest Daily Amount: 1.82 ” on the 30th

Additional information from South Jackson-Bemis is available at:  http://monthlyclimate.wordpress.com
Eddie Holmes, Meteorologist

Rain, Rain…Have You Gone Away?

PUBLIC INFORMATION STATEMENT
WEST TENNESSEE WEATHER ONLINE JACKSON TN
910 AM CDT SAT OCT 31 2009

…24-HOUR RAINFALL AMOUNTS & PRELIMINARY OCTOBER 2009 TOTALS…

JACKSON’S MCKELLAR-SIPES REGIONAL AIRPORT OFFICIALLY RECEIVED 1.79 INCHES OF RAIN, SHATTERING THE RAINFALL RECORD FOR THE DATE.  THE PREVIOUS RECORD WAS 0.95 INCH SET IN 1972. YESTERDAY’S RAINFALL PUSHED THE TOTAL FOR THE MONTH OF OCTOBER TO 7.35 INCHES WHICH MAKES OCTOBER 2009 THE THIRD WETTEST OCTOBER ON RECORD.

BELOW IS A TALLY OF RAINFALL REPORTS FROM MADISON COUNTY COCORAHS OBSERVERS (www.cocorahs.org) FOR THE PAST 24 HOURS AND FOR OCTOBER 2009.

STATION               24 HOUR     OCTOBER ‘09

JACKSON 8.5 ESE    2.15″        8.16″
MEDINA 3.0 SE      2.05″         N/A
JACKSON 4.0 NE     1.99″        7.99″
JACKSON 4.3 N      1.97″        7.84″
GADSDEN 4.9 SSE    1.88″        8.07″
JACKSON 5.0 SSE    1.82″        7.28″
AIRPORT                    1.79″        7.35″
JACKSON 5.6 NE     1.73″        7.68″
JACKSON 1.4 SW     1.38″        6.87″

EH

RECORD RAINFALL IN THE AREA TODAY…A VERY WET OCTOBER

RECORD REPORT AND PUBLIC INFORMATION STATEMENT
WEST TENNESSEE WEATHER ONLINE JACKSON TN
518 PM CDT FRI OCT 30 2009

…RECORD RAINFALL IN THE AREA TODAY…A VERY WET OCTOBER…

AS OF 5 PM, JACKSON’S MCKELLAR-SIPES REGIONAL AIRPORT HAS RECEIVED 1.21 INCHES OF RAIN.  THIS SETS A NEW RECORD RAINFALL RECORD FOR OCTOBER 30TH AND THE
RAIN IS NOT OVER YET.  TODAY’S 5 PM TOTAL PUSHES THE MONTHLY TOTAL TO 6.77 INCHES.  THIS MAKES OCTOBER 2009 THE 4TH WETTEST OCTOBER ON RECORD AT THE
AIRPORT.

AS OF MID-AFTERNOON, OTHER RAINFALL AMOUNTS AROUND JACKSON INCLUDE BEMIS WITH 1.26 INCHES AND NORTH JACKSON 1.37 INCHES.  THIS BRINGS MONTHLY TOTALS AT THESE LOCATIONS TO 6.72 INCHES AND 7.37 INCHES RESPECTIVELY.

HOLMES