2013-0627 “The Very Antithesis of Meteorological Summer…”

June 27, 2013

Lots of rain showers and THOUSANDS of lightning strikes over Huerfano County Colorado this past evening. If there is a risk of a fire started by lightening this past evening, it would be there.  We don’t need another West Fork fire complex starting nearby.

The jet stream is setting up in a pattern that I have NEVER seen during the summer season. The flow is straight from the Canadian Arctic for the eastern US with the West under this monster hot high pressure with many Western weather stations potentially reaching all-time record high temperatures.

The jet stream map below is a forecast from this evening for this coming Tuesday evening. Note that Colorado is smack under this “highly anomalous” summer pattern.

I’m going to do a video and will post it in the morning. In the meanwhile the following the forecast discussion from the NWS Weather Prediction Center in College Park MD.

500 mb Forecast for 00z 3 July 2013

500 mb Forecast for 00z 3 July 2013  —  Show a hot monster ridge of high pressure over Nevada/Idaho with a northerly jet stream arching from the Canadian NWT down to the Texas Gulf Coast.  Typical for January, but not July.  Not ever during the summer months is this pattern normal.

EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1158 AM EDT THU JUN 27 2013

VALID 12Z SUN JUN 30 2013 – 12Z THU JUL 04 2013

…RECORD HEAT IN THE WEST…
…SOAKING RAINS IN THE EAST…

THE EXTREME MERIDIONAL PATTERN AT THE MEDIUM RANGE, AGREED UPON BY ALL THE GLOBAL NUMERICAL MODELS NOW, IS THE VERY ANTITHESIS OF METEOROLOGICAL SUMMER AT THE TEMPERATE LATITUDES--A TIME WHEN THE BAROTROPIC SUBTROPICAL RIDGE NORMALLY HOLDS SWAY. THE HIGHLY ANOMALOUS FLOW WILL LEAD TO HIGHLY ANOMALOUS SENSIBLE WEATHER, WITH SCORCHING HEAT IN THE WEST AND DAYS OF CLOUDBURSTS IN THE EAST.

TRIPLE-DIGIT DAILY MAXIMUM TEMPERATURES ARE EXPECTED THROUGHOUT THE LOWER ELEVATIONS OF THE INTERIOR WEST, WITH SOME LOCATIONS APPROACHING OR EXCEEDING ALL-TIME HIGHS. THE ANOMALIES–850 TEMPERATURES, 500 HEIGHTS, ET CETERA–WILL BE GREATEST OVER THE NORTHWEST. THE HEAT WAVE OVER WASHINGTON STATE EAST OF THE CASCADES WILL BE OF HISTORIC PROPORTIONS, BOTH IN TERMS OF DAILY MAXIMA AND DURATION OF THE STRING OF TRIPLE-DIGIT DAYS. NORMALLY HOT PLACES LIKE THE CENTRAL VALLEY OF CALIFORNIA, THE GREAT BASIN, AND THE DESERTS OF THE SOUTHWEST MAY EVEN OUTDO THEMSELVES, WITH LOCAL EFFECTS LIKE SOIL MOISTURE AND THERMAL WIND TERRAIN EDDIES DICTATING WHICH AREAS SEE NEW ALL-TIME RECORDS.

THE MOST PROLIFIC RAINFALL IN THE EAST IS EXPECTED ALONG THE GULF
COAST OF FLORIDA AND THE SOUTHEAST ATLANTIC COAST, WHERE
PERSISTENT DEEP AND FOCUSED SOUTHERLY FLOW WILL KEEP MOISTURE FLUX AND PRECIPITABLE WATER HIGH. FREQUENT SHOWERS ARE ALSO ANTICIPATED FROM THE OHIO VALLEY TO THE NORTHERN MID ATLANTIC AND EASTERN NEW ENGLAND STATES IN ASSOCIATION WITH STRONG SYNOPTIC-SCALE FORCING.

One thought on “2013-0627 “The Very Antithesis of Meteorological Summer…”

  1. Hi Scott, I am in Cedar Park, TX, a nw suburb of Austin. We have had a massive haze here since Saturday 6/30/13. I saw a lot of trails Friday and Saturday, and by Sat late afternoon, you could hardly see the clouds through the brownish haze, more like a film at that point. Sunday morning it rained (which was not anywhere in the forecast), the wind picked up and it was much cooler, and clearer. By Monday, you couldn’t see anything but a thick brown haze.
    Today I saw this article on Yahoo http://news.yahoo.com/blogs/sideshow/radar-dust-bugs-texas-weather-130821240.html
    I live here, I didn’t see any bugs like what they are describing. I did notice Monday, the birds were flying very erratically, like they do right before severe weather.
    I have been trying to figure out what is going on. I can see some smoke coming down from the north on the Wunderground map. I can’t tell if it could be that in the air, or the trails, or both. My sinuses have been messed up and have had horrible headaches since Friday.
    Do you have any info about what’s going on here?
    Thanks.

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