warning

Travel in the area should be restricted to emergencies only.

So, if you hear the sirens this morning or in the early afternoon, know it's just a test and no actual emergency is occurring.

Pakistan is closely allied with Saudi Arabia but has tried to maintain a diplomatic balancing act between Riyadh and Tehran.

The live testing is performed yearly and is in addition to weekly silent tests.

People in the area are urged to take cover immediately and avoid windows.

Flying debris will be dangerous to anyone without shelter.

Dangerous whiteout conditions are expected for the areas to which the blizzard warning applies.

Elsewhere, the National Weather Service reports winter weather advisories and watches for portions of western Wyoming on Sunday and Monday.

People in the area are urged to take cover inside a sturdy building and avoid windows.

If you must travel, the NWS advises keeping an extra flashlight, food and water in your vehicle in case of emergency.