Air quality degrades as heat spreads east
For the seventh day in a row we're talking about heat as it spreads into the Mid-Atlantic and East Coast. The hottest temperatures in the country will be from Missouri southeast to Georgia and north to the Washington D.C. area. Why not Florida? Moisture tends to keep the temperature regulated; the worst heat waves this country has seen have also coincided with widespread drought. Given the extreme to exceptional drought that many states can't get rid of, this heat wave isn't all that surprising. Air quality is becoming more of an issue the longer the heat sticks around. Air quality alerts have been issued for many major cities from Kansas City to New York, including Chicago, Detroit, and Atlanta. Chicago is seeing some relief from the heat today in the form of thunderstorms—northeast Illinois and northwest Indiana are under a severe thunderstorm watch. Washington D.C. is pushing its all-time record high of 106°, which is the high that BestForecast is going with. You can see the all-time record highs for almost all major cities here.
Figure 1. BestForecast high temperature for Friday.
Our Weather Historian, Christopher C. Burt, will likely post two blogs today and tomorrow this week's heat, but for now, he wraps up Thursday's significant temperature records:
• 109° in Chesterfiled, Missouri (well short of state monthly record of 112°)
• 108° in Lawrenceville, Illinois (ties all-time state June monthly record of 108° at Palestine in June 1954)
• 108° in Huntingsburg, Indiana (well short of state monthly record of 111°)
• 107° in Defiance, Ohio (1° short of all-time state June record-108° in Germantown in 1934)
• 111° in Evening Shade, Arkansas (short of state June record of 113° in 1936)
• 108° in Smyrna, Tennessee (short of 110° state record in 1936)
• 107° in Little Rock, Arkansas (all-time June monthly record)
Waldo Canyon Fire now 15% contained
The Denver Post is reporting that 346 homes have been lost to the Waldo Canyon Fire, which is burning northwest of Colorado Springs. They also report that one person has died and another is missing in the area of the blaze. The fire has been 15% contained since Thursday night, and the acreage is down to 16,750, welcome news to a terrified city.
Figure 2. Satellite imagery of Invest 97L, which is expected to drift west into the Caribbean over the next few days.
Invest 97L
A tropical wave in the central main development region of the North Atlantic is still producing thunderstorm activity as it moves west, and the National Hurricane Center has increased its chance of development to 20%. 97L's circulation continues to be moderate and in the past day has realigned with the thunderstorm activity, which is likely why NHC gave the go to invest the wave and begin running models on it. This wave continues to be in some moderate wind shear, 10-15 knots, and sea surface temperature is around average, 28° C (82° F), which is warm enough to support tropical development. Many of the track models are forecasting 97L to continue trekking west into the Caribbean, crossing the Lesser Antilles around July 1.
Angela
Reader Comments
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So why would 97L be forecast to drift north of west ?
Where is that...looks to be the gulf
Does the latest GFS and ECMWF develop 97L?
... and I wish you would stop pointing it down my way.
Nobody ever said Florida, lol. Calm down a bit. :P
It's the one restriction it has.
getting closer now wash
Hope you are safe washingtonian115. That is one intense super-cell.
How do people really think that does anything?
Its just an array of antennas...
Anyway, supposed to be 105-108 tomorrow, heat indices near 110 with humidity on the rise, should be hotter in E GA, approaching 110 degrees before heat indices.
Sunday should be 102 here, with much higher humidity, enough for iso-tstorms.
I see the NC folks have the Excessive heat warning, their humidity must be much higher that here.
We will probably have another heat wave in a week when another super-High builds into the central US
http://www.gdao.org/
Grateful Dead Archive Online
Celebrates Grand Opening June 29 With Moonalice
Fri, 29 Jun 2012
The Grateful Dead Archive is pleased to announce its grand opening, June 29, 2012, with a concert by famed Bay Area band Moonalice on the lawn of UC Santa Cruz's McHenry Library. The Library is home to the Archive...
i guess i should'nt tell ya about the ultra-zonic atomspheric wave generating device i have on the roof of the highrise
So that's what's giving me headaches. You have it pointed east, right?
NO !
Nah, I don't think this is another 2004. Nature doesn't hate you guys... yet.
just as i expected
Yeah, stay safe there.
"Keep in mind that none of the operational intensity guidance models (GFDL, HWRF, DSHP, or LGEM) were designed to be run on disturbances. In particular, the developmental dataset for DSHP and LGEM were all tropical cyclones (depressions or better). Essentially, when these models get run, the model "thinks" the system is already a tropical depression, and of course these invests are rarely that far along in their development." -- James Franklin
nope and if 97L develops or any other wave after that, then all the atomospheric conditions that both models were predicting would mean squat!
wow, i didnt see anywhere in TN hotter than 107 today.
is that the smyrna in rutherford county?
True...well...thats my prediction lets see what happends :)
-------
AN INVERTED TROUGH ACROSS NRN MEXICO/S TEXAS AND AN UPPER LOW
ACROSS TEXAS WILL KEEP CHANCES FOR RAIN ACROSS MUCH OF SOUTH
CENTRAL TEXAS THROUGH THE WEEKEND
-----------
and a tropical area of interest in W. Gulf. What is an inverted trough?
Inverted trough.
Can you show me the latest infrared satellite imagery?
Yeah, it looks kind of unwell, right now.
stay safe up there Wash!
these dont look like 70-80mph tstorms, all they are really doing now is providing a downdraft channel for the movement induced winds to reach the ground, id say maybe 65-75mph winds, but they are no longer capable of 100mph storm produced winds IMO
You would only know if you were in the middle of it
Whoa are there any tornado warnings in your area? Keep us updated if you can.
From Washington NWS forecast discussion:
"NEAR TERM /THROUGH SATURDAY/...
IAD 00Z SNDG SHOWS AN 850 MB TEMP OF +24. OUR SCIENCE OFFICER DID
A STUDY OF 52 YRS OF DC AREA SNDGS - A TEMP THIS WARM AT 850 HAS
ONLY OCCURRED 6 OTHER TIMES. OBVIOUSLY W/ APRCHG LN...DAMAGE REPORTS
COMING OUT OF W.V. ...AND AMT OF CAPE IN THE MID ATLC WE ARE
CONCERNED W/ THIS LN".
Pretty, eh ?
SPSLWX
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
935 PM EDT FRI JUN 29 2012
DCZ001-MDZ003>007-009>011-013-014-016>018-501-502 -VAZ025>031-
036>040-042-050>057-501>504-WVZ050>053-055-501>50 6-300315-
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORA NGE-CULPEPER-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY -
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK...
WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE ...ANNAPOLIS...
WALDORF...ST MARYS CITY...FROSTBURG...CUMBERLAND...STAUNTON...
WAYNESBORO...HARRISONBURG...WINCHESTER...FRONT ROYAL...
CHARLOTTESVILLE...LEESBURG...CULPEPER...MANASSAS. ..
MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH...
FREDERICKSBURG...WARRENTON...HIGHTOWN...MONTEREY. ..MARTINSBURG...
CHARLES TOWN...MOOREFIELD...BAYARD...MOUNT STORM...PETERSBURG...
ELK GARDEN...KEYSER...FORT ASHBY...CIRCLEVILLE...FRANKLIN
935 PM EDT FRI JUN 29 2012
...EXTREMELY DANGEROUS THUNDERSTORMS TO IMPACT BALTIMORE AND
WASHINGTON REGION THIS EVENING...
AT 9:30 PM...A LINE OF SEVERE THUNDERSTORMS PRODUCING DAMAGING
WIND GUSTS WAS CROSSING WESTERN MARYLAND AND THE EASTERN PANHANDLE
OF WEST VIRGINIA. THIS LINE OF THUNDERSTORMS IS EXPECTED TO HIT
CENTRAL MARYLAND AND THE WESTERN SUBURBS OF WASHINGTON DC BETWEEN
10 AND 10:30 PM...THE INTERSTATE 95 CORRIDOR INCLUDING WASHINGTON
DC AND BALTIMORE BETWEEN 10:30 AND 11 PM...THEN REACH THE
CHESAPEAKE BAY BETWEEN 11:30 AND MIDNIGHT.
THIS LINE OF STORMS HAS A HISTORY OF PRODUCING MAJOR WIND DAMAGE
ACROSS WESTERN MARYLAND AND EASTERN WEST VIRGINIA DUE TO WIND
GUSTS OVER 75 MPH...ALONG WITH PROLIFIC CLOUD TO GROUND LIGHTNING.
THIS IS A PARTICULARLY DANGEROUS SITUATION THIS EVENING. RESIDENTS AND
VISITORS TO THE REGION SHOULD START PLANNING NOW TO PROTECT LIFE
AND PROPERTY THROUGH SEEKING SHELTER IN A STURDY BUILDING WHEN
WARNINGS ARE ISSUED FOR YOUR AREA.
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