Rain Today, Strong Thunderstorms Possible Friday

A frontal system and strong shortwave trough will give the region a period of rain from later this morning into this afternoon.  The rain can be seen on radar over PA. Temperatures aloft are enough for the area to only see rainfall from this event. However, surface temperatures may be slow to rise above freezing, due to the snowpack. Which could cause rain to freeze on surfaces. Especially north and west of NYC. Therefore, the National Weather Service has issued a Freezing Rain Advisory for NW NJ and Orange and Rockland Counties in NY. Rainfall totals are likely between .25″ – .50″ across the area. So no significant flooding is expected. However snow melt today may cause some ponding on the roadways. So wear waterproof boots. Rain should ending this evening.

Radar2A cold front will move through on Friday, with some showers and possibly some thunderstorms. SPC has places southern parts of the tri-state area in a 5% or 15% risk for thunderstorms with damaging wind gusts. Models don’t show any surface-based instability. So severe weather is not likely. But with a strong 500mb jet streak and some elevated instability there is potential for a forced low-topped squall line that produce wind gusts of at least 40mph. Temperatures will also likely rise into 50s ahead of this front.

day3prob_0830
gfsNE_500_spd_060These weekend will feature mostly dry weather, with a gradual step down with temperatures. Next week still looks much colder with a threat of more snow.

El Reno Tornado Widest Ever in the US

The tornado hit EL Reno, OK , is now classified as EF-5 and believe to 2.6 miles. Making it the widest tornado on record over the United States.  This tornado is also responsible for the deaths several veteran storm chasers. Tim Samaras, his son Pat Samaras, and his partner Carl Young. Official statement from the National Weather Service is below

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1206 PM CDT TUE JUN 4 2013

…UPDATE ON MAY 31 EL RENO TORNADO…

METEOROLOGISTS WITH THE NATIONAL WEATHER SERVICE AND RESEARCHERS FROM
THE UNIVERSITY OF OKLAHOMA CONTINUE TO INVESTIGATE INFORMATION
RELATED TO THE MAY 31 EL RENO TORNADO.

WITH THIS INVESTIGATION… THE TORNADO HAS BEEN UPGRADED TO AN EF5
TORNADO BASED ON VELOCITY DATA FROM THE RESEARCH MOBILE RADAR DATA
FROM THE UNIVERSITY OF OKLAHOMA RAXPOL RADAR. IN ADDITION… THE
WIDTH OF TORNADO WAS MEASURED BY THE MOBILE RADAR DATA TO BE 2.6
MILES AFTER THE TORNADO PASSED EAST OF US HIGHWAY 81 SOUTH OF EL
RENO. THIS WIDTH IS THE WIDTH OF THE TORNADO ITSELF AND DOES NOT
INCLUDE THE DAMAGING STRAIGHT-LINE WINDS NEAR THE TORNADO AS
DETERMINED BY THE HIGH-RESOLUTION MOBILE RADAR DATA. THE 2.6 MILE
TORNADO PATH WIDTH IS BELIEVED TO BE THE WIDEST TORNADO ON RECORD
IN THE UNITED STATES.

.EL RENO TORNADO

RATING: EF5
PATH LENGTH /STATUTE/: 16.2 MILES
PATH WIDTH /MAXIMUM/: 2.6 MILES
FATALITIES: N/A
INJURIES: N/A

START DATE: MAY 31 2013
START TIME: 6:03 PM CDT
START LOCATION: 8.3 WSW OF EL RENO /CANADIAN COUNTY /OK
NEAR COURTNEY ROAD ABOUT 1 MILE NORTH
OF REUTER ROAD
START LAT/LON: 35.495 / -98.095

END DATE: MAY 31 2013
END TIME: 6:43 PM CDT
END LOCATION: 6.2 ESE OF EL RENO /CANADIAN COUNTY /OK
NEAR INTERSTATE 40 AND BANNER ROAD
END LAT/LON: 35.502 / -97.848

$$

SMITH/GARFIELD/SPEHEGER/AUSTIN