Monday, July 06, 2009

June climate summary

...A WARM JUNE WITH NEAR NORMAL RAINFALL...

JUNE AVERAGED 77.9 DEGREES AT NASHVILLE AIRPORT...WHICH IS 2.8 DEGREES ABOVE NORMAL. THE HIGHEST TEMPERATURE FOR THE MONTH WAS 95 DEGREES ON THE TWENTY-SECOND AND 27TH...AND THE COLDEST WAS 51 DEGREES ON THE 6TH. TOTAL RAINFALL FOR THE MONTH WAS 4.53 INCHES...WHICH IS 0.45 INCH ABOVE NORMAL.

THERE WERE SEVERAL MINOR WEATHER EVENTS ACROSS THE MID STATE. FLOODING WAS A PROBLEM FOR THE SOUTHERN PLATEAU ON THE EVENING OF THE 4TH WHEN 2 INCHES FELL ON ALREADY SATURATED GROUND. WIDESPREAD MINOR WIND DAMAGE OCCURRED OVER THE EASTERN TWO THIRDS OF THE AREA ON THE NIGHT OF THE 11TH. A LINE OF THUNDERSTORMS PUSHED THROUGH THE NORTHERN PORTIONS OF THE MID STATE ON THE AFTERNOON OF THE 16TH...AGAIN CAUSING MINOR WIND DAMAGE. FINALLY...ON THE LAST DAY OF THE MONTH...NIGHTTIME THUNDERSTORMS OVER THE NORTH CAUSED MINOR WIND DAMAGE...WITH ONE INJURY SUSTAINED IN SUMNER COUNTY.

CROSSVILLE AVERAGED 72.9 DEGREES FOR THE MONTH...WHICH IS 2.5 DEGREES ABOVE NORMAL. THE WARMEST TEMPERATURE WAS 88 DEGREES ON THE 20TH AND TWENTY-FIRST...WHILE THE COLDEST WAS 51 ON THE 6TH. TOTAL RAINFALL WAS 5.01 INCHES...WHICH IS 0.28 INCH ABOVE NORMAL.

CLARKSVILLE AVERAGED 76.3 DEGREES FOR THE MONTH AND TABULATED 2.54 INCHES OF RAINFALL. THE WARMEST TEMPERATURE WAS 94 DEGREES ON THE TWENTY-SECOND...AND THE COLDEST WAS 49 ON THE 6TH.

Quiet week ahead

After a wet weekend for most of Middle Tennessee, we've got a quiet week in store, with temperatures warming back up and little chance of rain until the weekend. No severe weather risk is anywhere near the mid state through day 8.

Monthly climate summaries

The monthly climate summaries for June are now up.

Monday, June 29, 2009

...Drier Air Across Middle Tennessee...

NATIONAL WEATHER SERVICE NASHVILLE TN
913 AM CDT MON JUN 29 2009

THE DRIER AIR THAT WAS USHERED IN BEHIND YESTERDAY`S COLD FRONTAL
PASSAGE FEELS GOOD THIS MORNING. TEMPERATURES TODAY WILL BE HELD
TO THE MID AND UPPER 80S...WITH A FEW LOWER 80S ALONG THE
CUMBERLAND PLATEAU. THIS WILL BE WELCOMED...AFTER A STRING OF 12
CONSECUTIVE DAYS OF 90 DEGREE WEATHER IN NASHVILLE...THE MOST IN
JUNE SINCE 15 DAYS BACK IN 1988. THE ALL TIME RECORD STRING OF 90
DEGREE DAYS IN THE MONTH OF JUNE WAS BACK IN 1952 WHEN NASHVILLE
HAD 28 CONSECUTIVE DAYS WITH 90 DEGREES AND ABOVE.

$$

BOYD

Saturday, June 27, 2009

Heat Advisory In Effect Today For Western Mid Tn

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 TO 6 PM THIS AFTERNOON...
FOR NORTHWEST AND PORTIONS OF NORTH CENTRAL ALABAMA.

VERY WARM TEMPERATURES...BETWEEN 95 AND 100 DEGREES...AND A HUMID
AIRMASS IN PLACE ACROSS THE CENTRAL TENNESSEE VALLEY...WILL RESULT
IN HEAT INDEX VALUES TOPPING OUT AROUND 105 DEGREES THIS AFTERNOON.
THE MOST IMPACTED AREAS WILL GENERALLY BE ALONG AND WEST OF I-65.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND
NEIGHBORS.

Thursday, June 25, 2009

A nine-day streak

With today's high temperature hitting at least 92o at Nashville, this makes nine consecutive 90o days, and ten overall this month, with still five more days to go. Are we running above normal? Absolutely. Thus far, we're averaging 2.7o above normal this month.

How are we doing on rainfall?

With an extremely wet May, you'd think we would be well above normal thus far this year, but that's not necessarily the case. At Nashville, we are 2.51 inches above normal year-to-date. At Crossville, they're 6.68 inches above normal. So we are wetter than normal, but not as much as one might think. Not complaining, though.

What's to write about?

The SPC has no severe weather risk areas painted over Middle Tennessee, there's no tropical activity going on in the Atlantic, and here we are nearing the first of July. Granted, we do have rain in the forecast, primarily with the next weather system that's expected Saturday night and Sunday, but until then, you couldn't buy a more benign weather scenario.

Wednesday, June 24, 2009

Whatever happened to the drought?

As of June 16, there are no drought conditions being reported anywhere in the state of Tennessee.

21 years ago today

On June 24, 1988, Crossville reported a high temperature of 99o, which set a new record for June.

Dry

It seemed as though we were getting convection every day when the flow aloft was out of the northwest. But since it switched to the north/northeast yesterday, we can't even buy a cloud. Relative humidity at Nashville at 4:00 p.m. was a paltry 38%. Not going to squeeze anything out of that atmosphere. We do introduce some low rain chances tomorrow night and Friday, and the SPC brings the slight risk area almost up to our northern border on day two.

Tuesday, June 23, 2009

The summer doldrums

After last night's wind storm that hit northern Wilson County, as well as other areas, I guess we can use a break from severe weather. The SPC has no severe weather risk areas anywhere near Middle Tennessee through the extended period. The local forecast calls for typical summer weather: hot days, warm nights, and isolated storms most afternoons during the next week.

Three-month outlook

Just for the fun of it, I decided to pull up the outlook for July, August, and September. If the CPC is right, we can expect slightly below normal temperatures for much of Middle Tennessee, with around normal precipitation.

40 years ago today

The Red Boiling Springs flood of 1969. Two young children were drowned in as 7.95" of rain fell between 330 AM and 830 AM, causing significant flooding along Salt Lick Creek and some $2 million dollars in property damage in the community. One-day rainfall records were set at Lafayette (6.80"), North Springs (4 NW) (6.70"), and Portland (8.05").

Monday, June 22, 2009

Monday storm reports

Here's a list of storm reports we received this afternoon and evening thus far.

...WARMEST MINIMUM TEMPERATURE RECORD SET...

THE LOW FOR JUNE 21ST 2009 WAS 79 DEGREES BREAKING THE CALENDAR DAY RECORD FOR THE WARMEST MINIMUM TEMPERATURE SET PREVIOUSLY IN 1914 WHEN THE LOW WAS 78 DEGREES.

THE 79 DEGREES RECORDED ON THE MORNING OF JUNE 21ST 2009 WAS THE WARMEST CALENDAR DAY MINIMUM TEMPERATURE IN NASHVILLE SINCE 81 DEGREES ON AUGUST 21ST 2007. THE WARMEST CALENDAR DAY TEMPERATURE EVER RECORDED IN NASHVILLE WAS BACK ON JULY 14TH 1954 WHEN THE MORNING LOW WAS 85 DEGREES.

SUBSIDENCE...UNDERNEATH A STRONG UPPER LEVEL HIGH PRESSURE AREA HAS BEEN THE REASON FOR THE RECENT HOT WEATHER IN MIDDLE TENNESSEE AND ADJACENT AREAS.

Saturday, June 20, 2009

Rutherford County's top 10 tornadoes

Link

Friday, June 19, 2009

Clarksville storm pictures from June 17

You can view a slideshow sent in by a weather spotter here.

Mammatus

Received this picture taken by a spotter on Briley Parkway near the interchange of Centennial Blvd. on June 17 around 7:30 p.m.

...A HOT WEEKEND TO START SUMMER...

THE HOTTEST DAYS OF THE YEAR SO FAR ARE EXPECTED THIS WEEKEND. TEMPERATURES WILL CLIMB INTO THE LOWER TO MID 90S ACROSS THE MID STATE...WITH HEAT INDEX VALUES BETWEEN 100 AND 105.

THE EXPECTED HIGH FOR FRIDAY IN NASHVILLE IS ABOUT 96 DEGREES. THE NORMAL HIGH IS 86...AND THE RECORD HIGH IS 100 DEGREES. AT CROSSVILLE...WE EXPECT A HIGH AROUND 90...WHICH WOULD BREAK THE PREVIOUS RECORD OF 89 SET IN 1994. THE NORMAL HIGH FOR CROSSVILLE IS 81.

TEMPERATURES IN NASHVILLE LAST HIT 95 DEGREES ON AUGUST 20TH IN 2008. IT HAS BEEN A WHILE...SO IT IS A GOOD IDEA TO REVIEW SOME HEAT SAFETY RULES.

THE ELDERLY...SMALL CHILDREN AND PEOPLE WITH CERTAIN HEALTH CONCERNS ARE MOST AT RISK DURING HOT WEATHER.

STRENUOUS ACTIVITIES SHOULD BE REDUCED OR RESCHEDULED FOR THE COOLER PARTS OF THE DAY.

LIGHTWEIGHT AND LIGHT COLORED CLOTHING IS BEST.

DRINK PLENTY OF NON ALCOHOLIC FLUIDS.

AVOID PROLONGED SUN EXPOSURE AND SUNBURN.

STAY IN AIR CONDITIONED PLACES IF POSSIBLE.

THIS WARM WEATHER ARRIVES RIGHT ON TIME. THE OFFICIAL START OF THE SUMMER SEASON WILL BE SUNDAY...JUNE 21...AT 1246 AM CDT.

Tuesday, June 16, 2009

Possible funnel cloud in Wayne County

Received this picture via Davis Nolan from a person 5 miles from Waynesboro.

Lots of severe weather today

The large bow echo complex that moved across Middle Tennessee this afternoon is nearly gone. You can click here to view the damage reports we've received thus far.