With a major system on the way the PDS WSW makes perfect sense! I will try and post some current info about the upcoming winter storm on thestormpatrol.com and on Facebook and Twitter ASAP!

When we think of PDS (Particularly Dangerous Situation) most of the time we are talking about a PDS Tornado Watch but not in this case. The NWS uses the term PDS to enhance the wording of a watch or warning. If you see a PDS Tornado Watch this means there is a heightened chance for strong to violent tornadoes in the watch area I.E a tornado outbreak! Sometimes the SPC will issue a PDS Severe Thunderstorm watch typically when a long lived derecho is forecasted.

Back to the PDS Winter Storm Warning, here are some questions for thought maybe someone can answer for me.

Is this the first PDS Winter Storm Warning?

If not when and where was the last one?

What are the requirements for a PDS WSW?

Read more to see the PDS Winter Storm Warning text.

Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
415 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-310615-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
415 PM CST SUN JAN 30 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO
6 PM CST TUESDAY...

THIS IS A PARTICULARLY DANGEROUS WINTER STORM SITUATION... WITH
THE POTENTIAL FOR BLIZZARD OR NEAR-BLIZZARD CONDITIONS ALONG WITH
LIFE-THREATENING WIND CHILLS. TRAVEL IS LIKELY TO BECOME EXTREMELY
DIFFICULT IF NOT IMPOSSIBLE BY TUESDAY MORNING. ALL RESIDENTS IN
CENTRAL AND NORTHERN OKLAHOMA ARE URGED TO TAKE THIS DEVELOPING
WINTER STORM SERIOUSLY AND PLAN FOR THE POSSIBILITY OF SIGNIFICANT
DISRUPTIONS BY LATE MONDAY NIGHT AND TUESDAY MORNING.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
  FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
  MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN
  SLEET AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIME
  LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH
  SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF
  TUESDAY AFTERNOON.

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW
  FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING
  TRAVEL VERY DIFFICULT OR IMPOSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
  WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
  WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
  EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
  POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND
  NEAR-WHITEOUT CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND HAZARDOUS
  AS EARLY AS MONDAY EVENING... MAKING TRAVEL TREACHEROUS. VERY
  COLD CONDITIONS FOLLOWING THE STORM MAY KEEP SOME ROADS FROZEN
  AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER
  CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND
  OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY
  NECESSARY MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
  PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
  RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
  DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN
  BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY
  TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
  FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$
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